Suction orifice tube for refrigerating device and device for its manufacturing

FIELD: heating systems.

SUBSTANCE: suction orifice tube intended for refrigerating device includes suction tube (13) routed parallel to suction tube (13), orifice tube (14) and adhesive tape (19), the middle strip (20) of which is bonded to orifice tube (14), and two side strips (21, 22) enveloping middle strip (20) are bonded to suction tube (13) and covered on suction tube (13) from the side opposite to orifice tube (14). Free end of side strip (21, 22) is sealed with plastic or elastic mixture. Suction orifice tube manufacturing device has at least the first and the second roller (1, 2; 3, 4; 5, 6; 7, 8), the circles of which face each other and form clearance (15, 24); at that, at least on circumferential surface of the first roller (1; 3; 5; 7) there is slot (10, 25) for suction tube for directing suction tube (13) through clearance (24), and at slot bottom (10, 25) for suction tube there formed is slot (12) for orifice tube for directing orifice tube (14) in contact with suction tube (13).

EFFECT: use of invention will allow increasing resistance of suction orifice tube.

9 cl, 8 dwg

 

The technical field

The present invention relates to vsasyvauschie-throttle tube, intended in particular for the supply and discharge of refrigerant to the evaporator and from the evaporator of the refrigeration apparatus, and device for its production.

The level of technology

In home refrigerators suction and the throttle tube is typically connected to the evaporator in the United among themselves. For such combined vsasyvauschie choke tubes are known mainly three structural forms. In the first constructive manner throttle (capillary) tube passes inside the suction tube. To do this, in the suction tube it is necessary to provide local puncture or widened section for input throttle (capillary) tube, and after installing the throttle tube securely insulated. Another known method is to solder or weld the throttle tube to suction. As the throttle tube typically has a very small clearance, it is necessary carefully to ensure that when soldering or welding as not to damage the lumen. The third method of the throttle tube is glued with suction using laid parallel to both tubes of adhesive tape. Usually in such a combined vsasyvauschie-throttle tube width adhesive tape is substantially less than sovmestnog the diameter of the intake and throttle tube, so a thicker suction tube is covered by adhesive tape not over the entire circumference. The open longitudinal edge of the tape lying on the suction tube, represent a significant object of aggressive actions, which can precipitate the moisture that causes corrosion and can reduce the adhesion of the adhesive tape, and thereby to weaken the bond of the intake and throttle tubes. Therefore, although the bonding is easier to use than the two other methods, however it has the disadvantage of less resistance.

Disclosure of inventions

The present invention is to provide glued vsasyvauschie-throttle tube resistance and device for its manufacture.

This problem is solved vsasyvauschie throttle tube with signs of paragraph 1 of the formula of the invention and the device for manufacturing a featured item 4.

In the proposed invention vsasyvauschie-throttle tube for refrigeration apparatus with suction tube and laid parallel to it with duct tape, the average strip which is glued to the throttle tube), and two sidebands surrounding the middle lane) attached to the suction tube, and the sidebands overlap on the suction tube, with the side opposite the throttle tube according to the invention the free edge of the side Polo is s sealed plastic or elastic mass.

Preferably, plastic or elastic mass in the liquid state is smeared on the open edge and it hardens. As a mass, in particular, can be used rubber or caoutchouc.

Device for the manufacture of the proposed invention in combination vsasyvauschie-throttle tube contains at least first and second platens, between facing each other circumferential surfaces which has a lumen, and at least on the circumferential surface of the first roller is formed a groove for suction tube for guiding the suction tube through the lumen, and at the bottom of this groove for suction tube is formed a groove for choke tube for directing the throttle tube in contact with the suction tube.

Complementary groove for suction tube is provided preferably in the second platen.

The groove for suction tube in the first roller with a groove for suction tube in the second roller directs the suction tube.

Preferably, the first roller located in front of the gap in the feed direction vsasyvauschie-throttle tube feeder is supplied adhesive tape, which when passing through the lumen vsasyvauschie-throttle tube is pressed into the grooves of the first roller and its adhesive surface of aprikose is the intake and throttle tubes and connects them together.

To ensure accurate supply of adhesive tape across the feed direction, on the first platen, adjacent to the cylindrical portion, in which a recessed groove for suction tube, formed, at least one flange, the diameter of which is larger than the diameter of the cylindrical part and which serves as a guiding focus for adhesive tape. Of course, these adjacent flanges can be provided on both sides of the cylindrical section.

On the second platen, preferably opposite the groove for the suction tube of the first roller is formed of a cylindrical disk, the thickness of which is less than the thickness of the suction tube. This cylindrical disk, the outer diameter of which preferably is a groove for the suction tube of the second roller, is designed to push the suction and the throttle tube in the grooves of the first roller, without any contact, however, with sticking and not yet attached to the suction tube side strips of masking tape.

The depth of the groove for suction tube in the first platen must be at least equal to half the diameter of the suction tube, so that during the passage of the tube and the adhesive strip through the lumen between the first and second roller, the tape could adhere at least to half the circumference of the suction tube.

For gluing is not yet glued in et is m pass the speakers for the half of the circumference of the suction tube of the side strips of masking tape are two clamping devices, the contour of which preferably corresponds to the circumference of the suction tube, and located in the same place in the feed direction after clearance in the path of the tubes, and the first of them presses and glues the first lateral strip of adhesive tape to the suction tube, and the second then presses and glues the second lateral strip to the suction tube and to the first sidebar.

List of drawings

Other characteristics and advantages of the invention ensue from the following description of the example of implementation with reference to the accompanying drawings. Pictured:

Figure 1 - schematic side view of the proposed invention is an apparatus for manufacturing a combined vsasyvauschie choke tubes;

Figure 2 - section of the device of figure 1 in the plane II-II at the level of the first pair of rollers;

Figure 3 - section in the plane III-III, showing adjoining tubes;

Figure 4 is a section in the plane IV-IV on the level of the second pair of rollers;

Figure 5 - section in the plane V-V of figure 1, in which the tube and the adhesive tape is shown in a partially connected state;

6 - section in the plane VI-VI of figure 1 at the level of the third pair of rollers;

Fig.7 - section in the plane VII-VII of figure 1 at the level of the first clamping what about the devices; and

Fig - section in the plane VIII-VIII of figure 1 at the level of the second clamping device, showing the finished combined vsasyvauschie-throttle tube.

The implementation of the invention

Depicted in figure 1 side view of a device basically consists of four pairs of rollers, indicated by numbers from 1 to 8. All of the rollers 1-8 mounted for rotation on a common base plate 18, for example, by means of screws 9. The rollers 1, 2 are mainly face shape with the groove 10 and 11 to the suction tube, and the upper roller 1 is at the bottom of the groove 10 to the suction tube groove 12 to the throttle tube. Cross-section of the grooves 10, 11, 12 is designed so that input 1 is on the left suction tube 13 and the throttle tube 14 are captured by these grooves flush and pressed to each other. Suction tube 13 and the throttle tube 14 are thin-walled copper tube with an inner diameter of the suction tube a few millimeters, and orifice tube in a few tenths of a millimeter. They can be submitted from not depicted on the figure of the roll in the form of an endless tube.

After passing through the rollers 1, 2, adjoining tubes 13, 14 are in the clearance 15 between the rollers 3, 4. The platen 3 in cross section similar to the roller 1; it differs from the latter only in having an additional flange 16 on the platen 3 with the anti-Christ. alonei side of the base plate 18. The flange diameter of a few millimeters greater than the diameter of the cylindrical part 17 in which are formed grooves 10, 12.

The flange 16 together with the base plate 18 serves as a lateral guide for laminated wrapped with aluminum adhesive tape 19, which is supplied with nesoversennogo roll and with the adhesive layer outside around the roller 3. Adhesive tape 19 penetrates together with the tubes 13, 14 in the grooves 10, 12 of the roller 3, and the average strip adheres to the throttle tube 14 and sticks to it, and the adjacent side strips 21, 22 part of its width pressed against the upper half of the circumference of the suction tube 13.

The roller 4 to the cylindrical disk 23, the circumferential surface of which is entirely filled by the groove 11 to the suction tube adjacent sections of reduced diameter, the diameter of which is selected so that the side strips 21, 22 adhesive tape do not touch their outer circumference and can't stick to it. In addition, a cylindrical disk 23 is slightly narrower suction tube 10, so that the side strips 21, 22 can also not touch the sides of the cylindrical disk 23 and stick to them.

Figure 5 shows the semi-finished composite vsasyvauschie-throttle tube after passing through the lumen 15. While the average strip 20 of adhesive tape 19 is closely attached to the throttle tube 14, the side strips 21, 22 only on the upper half of the district is ti suction tube 13 is glued to it. Edge of the side strips down.

Then vsasyvauschie-throttle tube passes through an opening 24 between the rollers 5, 6. The platen 6 has the same form as the platen 4. Compared with a groove 10 to the suction tube in the rollers 1-3 groove 25 to the suction tube in the shaft 5 deepened and lengthened by two parallel edges 26. The passage through the lumen 24 provides adhesion of adhesive tape along the upper half of the circumference of the suction tube over the entire surface.

The lumen 24 is adjacent the first clamping device 27, which is designed in the form of a fixed pin, flange 28 attached to the lower half of the circumference of the suction tube 13. This edge presses passing by her side strip 22 of the adhesive tape 19 to the lower half of the suction tube 13 and the outer edge of the side strip 22 is slightly to the left of the mid-plane of the combined vsasyvauschie-throttle tube. The same action produces located behind the mirror symmetric with respect to the clamping device 27 of the clamping device 29 on the side of the strip 21, the outer edge of which overlaps the edge of the side strips 22.

The rollers 7, 8 is similar to the form rollers 1 and 2 and as well, as they play mainly the role of a guide for vsasyvauschie-throttle tube.

The platen 31 is immersed in the vessel 30 with a rubber adhesive, rubber smears the adhesive in the overlap area of the two side strips 21, 22 and seals, thus, the free edge of the adhesive tape 19. After the rubber adhesive has hardened, the tube 13, 14 will be firmly secured and protected from water condensation.

1. Vsasyvauschie-throttle tube for refrigeration apparatus with suction tube (13) and runs parallel to the suction tube (13) throttle tube (14) and duct tape (19), the average strip (20) which is attached to the throttle tube (14)and two side strips (21, 22)surrounding the middle lane (20)attached to the suction tube (13), and side strips (21, 22) overlap on the suction tube (13) opposite the throttle tube (14), characterized in that that the free edge of the side strip (21, 22) sealed plastic or elastic mass.

2. Vsasyvauschie choke tube according to claim 1, characterized in that the plastic mass is rubber or a rubber.

3. Device for manufacturing vsasyvauschie-throttle tube, as claimed in claim 1 or 2, having at least first and second rollers(1, 2; 3, 4; 5, 6; 7, 8), facing each other, the circumference of which form the lumen (15, 24), and, at least on the circumferential surface of the first roller (1; 3; 5; 7) is formed by a groove (10, 25) for suction pipe for guiding the suction tube (13) through an opening (24), and at the bottom of the groove (10, 25) for the suction tube is formed a groove (12) for the dross is through the tube for directing the throttle tube (14) in contact with the suction tube (13).

4. The device according to claim 3, characterized in that the groove (10, 25) for the suction tube in the first roller (1; 3; 5; 7) together with a groove (11) for the suction tube in the second roller (2; 4; 6; 8) directs the suction tube (13).

5. The device according to claim 3 or 4, characterized in that it comprises a feeding device for the supply of the adhesive tape (19) in the conveying direction of the intake and throttle tube (13, 14) facing the lumen (15) place on the first roller (3).

6. The device according to claim 5, characterized in that the first roller (3) has a cylindrical part (17), in which the recessed groove (10) for the suction tube, and at least one adjoining cylindrical part (17) of the flange (16), the diameter of which is larger than the diameter of the cylindrical part (17).

7. Device according to one of PP, 4 and 6, characterized in that the groove (10, 25) for the suction tube in the first roller (3; 5) is located against the cylindrical disk (23) of the second roller (4; 6), the thickness of which is less than the thickness of the suction tube (13).

8. Device according to one of PP, 4 and 6, characterized in that the depth of the groove (10, 25) for the suction tube in the first roller (1)at least equal to half the diameter of the suction tube (13).

9. Device according to one of PP, 4 and 6, characterized in that in one place, located in the feed direction after the lumen (15; 24) on the way tubes (13, 14) through the device, razpolojenieto clamping device (27) for pressing the first side of the strip (22) adhesive tape (19) to the suction pipe (13), followed by the second clamping device (29) for pressing the second side strip (21) adhesive tape (19) to the suction tube (13) and to the first side strip (22).



 

Same patents:

FIELD: heating.

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FIELD: instrument making.

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FIELD: heating.

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17 cl, 7 dwg

FIELD: physics.

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EFFECT: disclosed method enables to calibrate an overheating sensor at the operating site of the refrigeration system, owing to which there is no need to calibrate said sensor at the manufacturing plant and, as a result, the need to monitor conformity of calibration data of a particular sensor.

11 cl, 10 dwg

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