Weight and holding lever of pressure rollers of drafting element of spinning machine

FIELD: textiles, paper.

SUBSTANCE: weight and holding lever of pressure rollers of drafting element of spinning machine has a downwardly open U-shaped housing in which at least one slider is located, comprising a loading element, and a holder for fixing the upper roller and an adjusting device by means of which the slider can be moved longitudinally relative to the housing and positioned on the upper side of the housing. For locking the slider in the housing of U-shaped section with the blocking of rotation around the vertical axis the bearing surface of the slider has a configuration which engages the corresponding configuration of the inner surface of the upper side of the housing, forming a form closure.

EFFECT: design provides twist-resisting locking of the slider relative to the vertical axis.

15 cl, 19 dwg

The proposed invention relates to the textile industry, in particular to a bearing and load bearing upper roller exhaust mechanism of a spinning machine having outdoor down U-shaped building, which is located at least one slider, which includes a load element, and a holder for fixing upper roller and a regulating device by which the slider can be moved in the longitudinal direction relative to the housing and positioned on the upper side of the support.

From German application DE 3902859 A1 known bearing and load bearing upper rollers consisting of two identical planar, connected to each other and held in parallel placed on the end of the spacer. Between the flat guide is a slider with a holder for fixing upper roller and load the item. Between flat rails installed movable in the longitudinal direction of the slider to set the width of the extraction field. Fixing the slider lock rotation reach through geometric circuit between the body of the slider and flat guides as parallel flat outer surfaces of the slider and parallel rails adjacent to each other.

The disadvantage of this method of fixation was crawling the NCA locking rotation is then, to adjust the width of the exhaust fields by moving the slider to the body, between the guide and the outer surfaces of the slider requires a certain gap that can be varied depending on the accuracy of manufacturing. This variable gap has a direct impact on the quality with which retained the position of the slider parallel to the case and, therefore, the position of the upper roller holder parallel to the respective lower roller in the exhaust mechanism. Variations in the accuracy of manufacturing a negative impact on maintaining the parallel position.

The present invention is to provide fixation of the slider in the housing to lock the rotation so that the manufacturing tolerances of the parts or the placement of the slider locking rotation had no effect on the constancy of the parallel position of the slider in the housing.

According to the invention this problem is solved by using the essential features of paragraph 1.

Feasible options for the development is the subject of the dependent claims.

In accordance with paragraph 1, it is proposed that in order to fix the slider e housing U-shaped section with blocking the rotation of the slider about the vertical axis, the contact surface of the slider had a structure that would engages with relevant to the respective surface structure of the inner surface of the upper side of the housing, forming a geometric circuit. Thus, to achieve reliable placement of the upper roller parallel to its corresponding lower roller, and realized it is cost-effective and least time-consuming way. By the way, is characterized by significant signs of paragraph 1, the holding (placement) of the slider and set it to the holder relative to the guides provide not already using prone to backlash and arranged with an interval from each other on the side surfaces of the slider and the housing, as is the case at the present technical level. Thus, it is possible to increase the tolerance on the lateral surfaces in the manufacture of the slider and the body, resulting also simplifies the manufacture of the body and the slider.

The configuration of the inner surface of the upper side of the housing may comprise at least one recess, into engagement with which includes at least one corresponding surface structure on the adjacent surface of the slider having the form of a ledge.

Alternatively, the configuration of the inner surface of the upper side of the housing may comprise at least one protrusion engages with whom there is at least one corresponding surface structure on the adjacent over the spine of the slider, having the form of a recess. Geometric circuit, generated due to the occurrence of the protrusion and the recess in engagement with each other, provides a simple and reliable way to hold the slider relative to the housing in order to prevent when you commit to the rotation of the slider relative to its vertical axis. To create the configuration of the surface in the form of recesses or protrusions by stamping on the housing or on the slider is the most economical way and with the necessary precision.

In another form of execution it is possible to provide that the configuration of the inner surface of the upper side of the enclosure consisted of several recesses arranged one behind the other at an angle to the longitudinal axis of the holder, into engagement with each of such recesses would be one of the projections on the adjacent surface of the slider, located at right angles to the longitudinal axis of the slider and forming the configuration of its surface.

In the same way, the configuration of the inner surface of the upper side of the housing may consist of several tabs each other at an angle to the longitudinal axis of the housing, engages with each of these projections would include the configuration of the adjacent surface of the slider, made in the form of corresponding recesses underneath comply with them an angle to the longitudinal axis of the slider along the adjacent surfaces.

The configuration of the surface in the form of a set of adjacent protrusions or recesses extending perpendicular to the longitudinal axis of the housing, in engagement with each of such projections or recesses is one corresponding recess or protrusion extending perpendicular to the longitudinal axis of the slider allows you to adjust the placement of the slider within some step of the grid, resulting from the selected intervals between the projections or recesses. Thus, the slider can step to move along the body.

Alternatively, the configuration of the inner surface of the upper side of the housing may consist of one continuous recess extending parallel to the longitudinal axis of the housing and in engagement with the recess includes two spaced at a certain distance from each other corresponding to the recess and is made in the form of protrusions on the adjacent surface of the slider surface structure extending parallel to the longitudinal axis of the slider. In this embodiment, the slider can be freely moved along the groove.

It is advisable that the protrusions or the depressions were located on the adjacent surface of the slider coaxially to each other.

In addition, the configuration of the adjacent surface of the slider can represent the manage a solid ledge, in engagement with which is included the corresponding surface structure on the inner surface of the upper side of the housing having the form of a recess.

It is advisable that the case had on the inner surface of its upper side, the configuration is made in the form of two parallel continuous grooves extending parallel to the longitudinal axis of the housing, in engagement with which would be located on two adjacent surfaces of the slider opposite diagonal ledge forming the configuration of the surface and corresponding to the recess.

In particular, the protrusions on the adjacent surface of the slider, the configuration of the surface can be located on its periphery. Possible large distance between the projections on the adjacent surface of the slider allows you to effectively guide grooves on the inner surface of the upper side of the housing, which is achieved by placing the tabs on adjacent surfaces of the slider near the edges.

Accommodation should preferably be chosen so that the tabs, regardless of their location on the adjacent surface, there was no further approximately 7 mm from the edge of the adjacent surfaces.

As reasonable improvements provided that the width of the surface structure made in the form of dredged what I was greater than the maximum possible difference between the maximum internal width of the housing and a minimum overall (external) width of the slider. This allows you to ensure that the tabs on adjacent surfaces of the slider when mounting the carrier and the load support is always included in the recess on the inner surface of the upper side of the housing. This reduces costs for installation, because there is no need for the alignment of the slider relative to the housing. A similar approach is valid for variants in which the adjacent surfaces of the slider are provided grooves, and on the inner surface of the upper housing side - tabs.

It is preferable to make the surface structure, designed as recesses and protrusions, in the form of a trapezoid.

Alternatively, surface structure, designed as recesses and protrusions may be V-shaped.

In addition, surface structure, designed as recesses and protrusions may be made in the form of segments of a circle.

The following is a more detailed explanation of the invention on the basis of examples of execution represented in the drawings.

They presented:

Figure 1. Side view of the U-shaped housing of the bearing and load bearing upper rollers;

Figure 2. The type of support from below according to Fig 1;

Figure 3. View RA is cut along the line III-III according to Fig 1;

Figure 4. Detailed image of a part of A according to figure 3;

Figure 5. View of the slider on the side;

6. Detailed image of a part B of the slider according to figure 5;

7. Section view along the line VII-VII according to Fig.6;

Fig. The type of support side in accordance with the second form of execution;

Fig.9. The type of support from below according Fig;

Figure 10. Section view along the line X-X according Fig;

11. Detailed images of the area in accordance With figure 10;

Fig. Top view of the slider according to figure 10;

Fig. The type of support in axonometric projection in accordance with a third form of embodiment;

Fig. Detailed image of a part D according Fig;

Fig. The type of support from below according Fig;

Fig. View in axonometric projection of the slider according Fig;

Fig. Detailed image of a part E according Fig;

Fig. View of the fourth form of execution support and the slider in the section along the line III-III in figure 1;

Fig. Detailed image of a part F according Fig;

1 shows the housing 1 of the bearing and load bearing exhaust mechanism of a spinning machine, made in the form of a U-shaped profile products, open down. The housing 1 is equipped with at least one slider 2, which is designed to accommodate and load the upper roller. During operation of the exhaust mechanism, the slider 2 is rigidly connected with the housing 1. Usually prescribed is but in order to adjust the width of the fields necessary for the operation of the exhaust mechanism, the slider 2 can be moved. The shift, as well as fixing the slider 2 on the housing 1, provides an adjustment device 4, which may represent, for example, a screw for fixing the slider 2 at a certain position. The slider 2 includes a holder 3 is designed to accommodate the upper roller, and a load element 10.

During operation, the upper roller from the side of the load element 10 operates the clamping force on the upper roller transmits the transmission lever 3. In addition, the transmission lever 3 serves to hold the upper platen as possible in parallel to its corresponding lower roller exhaust mechanism. To ensure accurate placement of the upper roller parallel to the bottom, it is necessary to prevent cranking of the slider 2 around its vertical axis, for example, when tightening the adjusting device 4 located on the upper side of the slider 2. It stipulates that in order to guarantee from turning latching slider 2 perpendicular to the longitudinal axis L of the U-shaped housing 1, the slider 2 has adjacent surface 8, which is connected with the inner closed surface of the upper side 9 of the housing 1 with the formation geometry is practical circuit. According to the examples of execution represented in figure 1-7, this is achieved by the fact that, as shown in figure 2, on the inner surface of the upper side 9 of the housing 1 is provided by the surface configuration in the form of a recess 5, which basically covers the entire length of the housing 1. Accordingly, the adjacent surface 8 of the slider 2 has a surface configuration in the form of a lug 6, as shown in figure 4. Made in the form of longitudinal slits 7 a hole on the top side 9 of the housing 1 allows to move the slider 2 in the longitudinal direction in order to adjust the width of the exhaust fields.

Figure 3 presents a section of the housing 1 along the line III-III according to Fig 1. From the image you can see that using the control device 4 of the slider 2 can be placed on the housing 1 in a position which can be set in advance.

Figure 4 shows detailed images of the area And according to figure 3, adjacent the surface 8 of the slider 2 is attached to the inner surface of the upper side 9 of the housing 1. Positive locking is achieved by the engagement of the protrusion 6 on the adjacent surface 8 of the slider 2 with the recess 5 on the inner surface of the housing 1.

Figure 5 shows a side view of the slider 2 includes a load element 10, and the gear lever 3. On the adjacent surface 8 has two is estopa 6, located at a certain distance from each other and coaxially to each other.

Figure 6 provides a detailed image of the area In accordance with figure 5. This image shows how you have two tabs 6 on the adjacent surface 8 of the slider 2 in accordance with figure 5.

Figure 7 presents a section along the line VII-VII according to Fig.6, from which clear the shape of the protrusion 6. In this embodiment, the protrusion 6 has an essentially V-shaped, and the corresponding recess 5 in the housing 1. The profile of the protrusion and the recess may be in addition to, essentially V-shaped performance is also rectangular, trapezoidal, have the shape of a segment of a circle, part of an ellipse, hyperbola, or a combination of these options that partially presents the following examples of execution.

In this example of execution according to Fig 1 to 7, the geometric circuit between the housing 1 and the slider 2 is achieved by the fact that two projection 6 engages with a recess 5 which extends along the housing 1. For this purpose, in order to achieve accurate placement of the protrusions 6 on the adjacent surface 8 of the slider 2 is placed on possibly the greatest distance from each other. The placement of the projections 6 on the adjacent surface 8 is preferably chosen so that the tabs 6, regardless of location on the adjacent surface 8 - that is, from ogeny whether they are on the adjacent surface 8 parallel to the longitudinal axis of the slider 2 or at a certain angle to it - was placed at a distance from the envelope edge adjacent surfaces 8, not greater than about 7 mm

Further, in order to avoid possible matches fixing flush on the adjacent surface 8 of the slider 2 do not place more than two protrusions 6 and not make two parallel grooves 5 extending along the body 1. So when tightening the adjusting device 4 to bring the protrusions 6 in the recess 5 without a gap, the protrusions 6 are made so that the imposition of the adjacent surface 8 of the slider 2 on the inner surface of the top side 9 of the housing 1 side surfaces of the protrusions overlap the flanges of the recess 5. To simplify installation, you can make the width of the recess 5 is greater than the maximum difference between the maximum internal width of the housing 1 and the minimum outer width of the slider 2. Thus, when fixing the slider 2 in the housing 1, the protrusions 6 of the slider 2 is fixed in the recess 5.

In figures 8-12 presents a second example of execution, in which the housing 1 has two recesses 5 along the longitudinal axis of the housing 1 parallel to each other. Engaged with these grooves 5 are two tabs 6 on the adjacent surface 8 of the slider 2, as shown figure 11. While the projections 6, as shown in Fig, located on adjacent surfaces 8 of the slider 2 with the offset relative to each other diagonally. Thus, as already mentioned in the first example of execution according to figures 1-7, is easy fixing of the slider 2 in the housing 1, no matching connection flush with the fixing of the slider 2 on the housing 1 with the adjusting device 4. In this example, the execution of the projections 6 have the shape of spherical segments and corresponding indentations 5 a trapezoidal cross-section.

The third example of execution shown in Fig 13-15. In this third example, the execution can accommodate the slider 2 in a raster with a preset step. For this purpose on the inner surface of the closed top side 9 of the housing 1 accommodates a number of recesses 5, which can also be at an angle to the longitudinal surface, and the distance between them in the longitudinal direction corresponds to the step grid (raster). In this case, the corresponding projections 6 arranged on the adjacent surface 8 of the slider 2 corresponding to the cavities 5, and they are placed either at a certain distance from each other along an imaginary line, or next to each other at a distance, multiple step grid.

The combination of the recesses on the inner surface of the upper side 9 of the housing 1 and the projections on the adjacent surface 8 of the slider 2, is described in the three examples of execution, it is possible, less is th least in part, to implement and reverse option. That is, the inner surface 9 of the upper side of the housing 1 is performed by equipping the tabs and the adjacent surface 8 of the slider 2 by the respective recesses. This option, by analogy with the example of execution represented in figure 1-7, shown in figures 18 and 19.

1. Cargo and holding the lever of the pressure rollers of the exhaust device of the spinning machine having outdoor down U-shaped housing (1)is at least one slider (2), which includes loading element (10)and the holder (3) for fixing upper roller and a regulating device (4), with which the slider (2) can be moved in the longitudinal direction relative to the housing (1) and be placed on the upper side (9) of the housing (1), characterized in that for durable curl fixing the slider (2) in the housing (1) U-shaped section relative to the vertical axis of the contact surface (8) of the slider (2) has the configuration (6), which engages in a corresponding configuration (5) the inner surface of the upper side (9) of the housing (1) with the formation of geometric circuit.

2. Cargo and holding the lever according to claim 1, characterized in that the configuration of the inner surface of the upper side (9) of the housing (1) consists of at least one recess (5), in engagement with which is included at least one item corresponding surface configuration on the adjacent surface (8) of the slider (2), having the form of a protrusion (6).

3. Cargo and holding the lever according to claim 1, characterized in that the configuration of the inner surface of the upper side (9) of the housing (1) comprises at least one protrusion (6), in engagement with which is at least one element corresponding configuration on the adjacent surface (8) of the slider (2)having the shape of the recess (5).

4. Cargo and holding the lever in one of claims 1 or 2, characterized in that the configuration of the inner surface of the upper side (9) of the housing (1) consists of a number of recesses (5) are sequentially disposed at an angle to the longitudinal axis (L) of the housing (1), engages each of which includes one of the projections (6) on the adjacent surface (8) of the slider (2), arranged at right angles to the longitudinal axis of the slider (2) and forming the configuration of its surface.

5. Cargo and holding the lever according to claim 3, characterized in that the configuration of the inner surface of the upper side (9) of the housing (1) consists of a set of projections (6)are sequentially disposed at an angle to the longitudinal axis (L) of the housing (1), engages each of which includes a respective configuration elements on adjacent surfaces (8) of the slider (2), which is made in the form of a set of corresponding recesses (5), arranged at right angles to the longitudinal the C of the slider (2) and extending along its axis.

6. Cargo and holding the lever according to claim 2, characterized in that the configuration of the inner surface of the upper side (9) of the housing (1) consists of a continuous deepening (5), situated parallel to the longitudinal axis (L) of the housing (1), in engagement with which includes two located at a certain distance from each other and corresponding to the recess (5) of the lug (6) on the adjacent surface (8) of the slider (2), and forming the configuration of its surface, and the projections (6) are parallel to the longitudinal axis of the slider (2).

7. Cargo and holding the lever in one of the subparagraph 5 or 6, characterized in that the recesses (5), respectively, the projections (6) are arranged one behind the other on the adjacent surface (8) of the slider (2) coaxially.

8. Cargo and hold the lever to claim 1 or 2, characterized in that the configuration of the adjacent surface (8) of the slider (2) consists of a continuous protrusion (6), in engagement with which is included the corresponding configuration on the inner surface of the upper side (9) of the housing (1)having a shape of a recess (5).

9. Cargo and holding the lever in one of claims 1 or 2, characterized in that the housing (1) has on the inner surface of its upper side (9) configuration in the form of two parallel continuous grooves (5)extending parallel to the longitudinal axis (L) of the housing (1), engages with whom entering the two tabs (6), forming the configuration of the surface and corresponding to the recess (5)located opposite diagonally adjacent surface (8) of the slider (2).

10. Cargo and holding the lever according to claim 1, characterized in that the surface configuration elements (6) are located on the periphery of the adjacent surface (8) of the slider (2).

11. Cargo and holding the lever of claim 10, characterized in that the projections (6) have a maximum indentation of about 7 mm from the edge of the adjacent surface (8).

12. Cargo and holding the lever in one of claim 2 or 3, characterized in that the width of the surface configuration is made in the form of a recess (5)is greater than the maximum possible difference between the maximum internal width of the housing (1) and the minimum outer width of the slider (2).

13. Cargo and holding the lever in one of claim 2 or 3, characterized in that it is designed as recesses (5) and the protrusions (6) surface configuration have the shape of a trapezoid.

14. Cargo and holding the lever in one of claim 2 or 3, characterized in that it is designed as recesses (5) and the protrusions (6) surface configuration elements are V-shaped.

15. Cargo and holding the lever in one of claim 2 or 3, characterized in that it is designed as recesses (5) and the protrusions (6) surface configuration elements have the shape of segments of a circle.