Device for processing linen with weight measuring tool

FIELD: textile, paper.

SUBSTANCE: device for processing linen according to the invention comprises a housing (1) with a camera in it (2) for treated items, and a tool (6) of weight measuring, located between the housing (1) and at least one leg ( 4) mounted on the outer area (5) of the housing base (1) to support the device. Linen processing device is notable for the fact that a tool (6) of measuring weight includes a first electrically conductive lever (7, 27), taking the leg (4), and a second electrically conductive lever (8, 28) connected to the housing (1). At that, the said levers (7, 27, 8, 28) are placed in parallel to each other from cross-connecting element (9, 29), forming a gap (10, 210), inside of which the sensor is located (10) to generate an output signal denoting the change in capacitance, corresponding to change in weight of items.

EFFECT: improved reliability of device for processing linen with a tool of weight measuring, the possibility of replacing the tool of weight measuring in case of breakage, without disassembly of the processing linen device housing.

13 cl, 3 dwg

 

The present invention relates to a device for processing sheets, such as washing, drying or washing-drying machine, containing a measure of weight.

In known devices for processing linen measuring the weight of the processed objects to adapt user-selected processing program to the real state of the objects placed inside the processing chamber. For example, the weight of the wet cloth can be used to change the number of revolutions per minute of the rotating drum in the drying device to get properly dried linen. In the washing machine dimension weight linen can be used to determine the optimum quantity of washing liquid and/or water efficient washing.

To measure the weight of the items in the device for processing linen there are many solutions. In EP 1 258 556 described measurement tool built-in friction shock absorbers and intended for recording deviations/shift one or more spring elements. However, such an embodiment is quite difficult to manufacture and requires disassembly of the entire device in case of breakage measurement tools. The last disadvantage is the fact that the camera is processing underwear hanging on a friction shock absorbers and therefore all together is ateljstva requires disassembly of camera processing.

Another embodiment of a means of measuring the weight of objects on the device for processing sheets described in EP 0051491. In the known device transducers, pressure-sensitive, are located between the dampers and the plot of the case base. This solution also has the above-mentioned disadvantages.

EP 1110499 describes the strain gauges in the form of Electromechanical transducers for measuring the weight of the plates in the dishwasher device. Even if such strain sensors to be installed on the legs of the device, that is easily accessible for fast replacement in case of breakage of the inverter, it should be noted that the strain gauge requires some care and precision installation, and therefore it is required to apply complex Assembly operations in the production of a dishwasher device or when performing maintenance.

The present invention is to solve the aforementioned problems, thereby creating device for processing sheets with means for measuring the weight, which is simple to manufacture and provides high reliability.

Another objective of the present invention is to create a device for processing sheets with means for measuring the weight, which is easy to install and replace in case of breakage, so that it does not require disassembly of the housing.

It is one object of the present invention is to provide a means of measuring the weight, which is possible with minimal modifications to install in an existing device for processing linen.

The advantages, objectives and features of the invention will be presented in the following description and will be clear to a person skilled in the art after a study, or can be determined by carrying out the invention in practice. Objectives and advantages of the invention can be solved and achieved, in particular, in the invention according to the formula.

1 schematically shows a device for processing sheets with means for measuring the weight in accordance with the present invention;

figure 2 shows the enlarged view of the means of measuring the weight shown in figure 1;

figure 3 shows a second embodiment of a means of measuring the weight, which can be used in the device for processing sheets, depicted in figure 1.

Figure 1 shows a device for processing sheets, such as washing, drying or clothes-washing machine, comprising a housing 1, in which the camera is installed 2 processing. Processed items placed in the processing chamber 2, such as a rotating drum through the opening 3 closed by a door. The legs 4 are located on the outer section 5 of the base body 1 to support the device. The legs 4 are connected by a thread with section 5 grounds with Vertica inogo change the position of the housing 1 to obtain the correct horizontal position.

To measure the weight of the linen, and placed in the processing chamber 2 between the housing 1 and one or more legs 4, there are means 6 weight measurement. Figure 2 shows the means of 6 measurements of weight, containing a pair of parallel, electrically conductive and spaced apart levers 7 and 8, projecting from the connecting cross member 9. Facing each other, the levers 7 and 8 form a gap 10 and together with the transverse element 9 essentially form a C-shaped structure that works as a flat spring under the influence of the weight of the device and/or linen.

In the first lever 7 is made a hole to install it by carving the legs 4, and the second lever 8 is connected in a known manner with the housing 1 of the device. The sensor 11 is placed within the gap 10 to determine changes in weight, for example, the sequential drying and/or operations of loading/unloading of linen.

If you change the weight of the objects to be processed inside the chamber 2, changes the relative position of the levers 7 and 8, namely changing the distance between them, i.e. change the size of the gap 10. This changes the dielectric layer (in this case, the air layer) between the levers 7 and 8.

The sensor 11 includes a measuring electrode 13 located inside the gap 10, and the electrode 13 is connected to the lever 8 through the layer of electrically insulating material. The lever 7 is grounded along the measuring electrode 13 forms a capacitor. The sensor 11 is arranged to measure changes in the capacitance between the levers 7 and 8 by feeding signals corresponding to the weight change of linen inside the chamber 2. The way of measuring such changes in the capacitance in itself known, for example, the appropriate way of this measurement is described in the application EP 061148276. The signals produced by the sensor 11, are transmitted to the microcomputer (not shown) through the wire 12, and they are used for the adaptation of working operations of the device depending on the weight linen. For example, in the drying device, the measured value created by the underwear of the load can be used to calculate the moisture content of the sheets and, consequently, to change the working parameters of the device, such as the temperature of the drying air and/or the number of revolutions per minute of the drum of the drying chamber. A device for washing clothes created by linen load can be used to calculate the optimum quantity of washing liquid and/or to determine the need for additional cycle of rotation.

The sensor 11 can measure weight, as for the case when the processing chamber 2 contains linen, and for the case when there is no underwear. In the latter case, when the camera 2 is empty, the measured value of the weight corresponds to the total weight of the device. This weight can then be taken as zero, i.e pornog the values for measuring the weight of the Laundry after it has been loaded into the processing chamber 2. Weight linen can be measured continuously during the execution of business operations by the device, which allows to continuously monitor the machining cycles.

Figure 3 shows the second embodiment of the means 26 dimensions weight linen, placed in the processing chamber 2, which can be installed between the housing 1 and one or more legs 4 for weight measurement.

The tool 26 weight measurement is similar to that shown in figure 2, comprises a pair of parallel electrically conductive and spaced apart levers 27 and 28 projecting from the connecting cross member 29. Facing each other, the levers 27 and 28 form a gap 210 and together with the transverse element 29 essentially form a C-shaped structure that works as a flat spring under the action of the weight of the device and/or linen.

The first lever 27 is divided into two sections 27A and 27b hole 220 that extends from cross member 29 in essentially the direction perpendicular to it. Thus, portions 27A, 27b can move independently of one another relative to the second lever 28. Sections 27A and 27b is formed with the second arm 28 a couple of gaps 210A and 210b, respectively.

In section 27A of the first lever 27 is made the hole for installation by carving the legs 4 and section 27b is not a support device and simply speaks of the cross member 29. The second rich the g 28 is connected in a known manner with the housing 1 of the device.

To measure changes in weight as a result, for example, successive drying clothes or operations of loading/unloading within the gap 10 is the sensor 211. In particular, the sensor 211 includes a pair of electrodes 213A and 213b connected with the lever 28 in the respective gaps 210A and 210b. The electrodes 213A and 213b is electrically insulated from the lever 28. Sections 27A and 27b grounded and together with the electrodes 213A and 213b form two capacitor. If you change the weight of the objects to be processed inside the chamber 2, changes the relative position of the plot and 27A of the lever 28, namely, the distance Dabetween them, i.e. changing the size of the gap 210A.

This changes the dielectric layer (in this case, the air layer) between the parcel 27A and the lever 28. The distance Db between the site and 27b of the lever 28 remains essentially constant during the change of weight, and therefore, the capacity measured by the electrode 213b in the gap 210b, can be used as a reference value to compensate for errors in the measurement of changes in the capacitance of the measuring electrode 213A in the gap 210, resulting from changes in environmental conditions, such as electromagnetic fields and humidity.

Device for processing sheets with means for measuring the weight according to the present invention is simple to manufacture and improves the processing quality linen. Such devices which can be produced with minimal modification on the basis of already existing devices for handling of linen. This greatly simplified the intervention in case of failure of means of measuring weight.

1. A device for processing sheets, comprising a housing (1) with a built-in camera (2) for the treated subjects and the means (6) measurement of weight, which is located between the housing (1) and at least one of the legs (4)installed on the outer section (5) of the base body (1) to support the device, characterized in that the means (6, 26) dimensions weight contains a first electrically conductive arm (7, 27), receiving leg (4) and the second conductive lever (8, 28)coupled to the housing (1), the levers (7, 27, 8, 28) are parallel to each other from the transverse connecting element (9, 29), forming a gap (10, 210), which is installed inside the sensor (11, 211) to generate an output signal indicating a capacitance change corresponding to the change of weight of products.

2. The device according to claim 1, characterized in that the first electrically conductive arm (7, 27) is grounded, and a sensor (11, 211) contains placed in the gap (10, 210) measuring electrode (13, 213A)connected to a second lever (8, 28) and is electrically insulated from it.

3. The device according to claim 1, characterized in that it contains a microcomputer, used for receiving the signal from the sensor (11, 211) and the settings performed by the device operations.

4. The device according to claim 2, characterized in, th which contains a microcomputer, designed for reception of a signal from a sensor (11, 211) and the settings performed by the device operations.

5. Device according to any one of claims 1 to 4, characterized in that the levers (7, 27, 8, 28) and transverse connecting element (9, 29) form a C-shaped structure.

6. Device according to any one of claims 1 to 4, characterized in that the first lever (27) is divided into two sections (27A, 27b) hole (220)that extends from the coupling element (29) in a direction essentially perpendicular to the latter.

7. The device according to claim 5, characterized in that the first lever (27) is divided into two sections (27A, 27b) hole (220)that extends from the coupling element (29) in a direction essentially perpendicular to the latter.

8. The device according to claim 6, characterized in that each of the two sections (27A, 27b) forms a gap (210A, 210b) with the second conductive lever (28).

9. The device according to claim 7, characterized in that each of the two sections (27A, 27b) forms a gap (210A, 210b) with the second conductive lever (28).

10. Device according to any one of p or 9, characterized in that the pair of electrodes (213A and 213b) is connected to the second lever (28) and electrically isolated from it in the respective gaps (210A, 210b), and sections (27A, 27b) is grounded.

11. Device according to any one of claims 7 to 9, characterized in that one of the portions (27A, 27b) made the hole for the mounting legs (4) what redstem thread.

12. The device according to claim 6, characterized in that one of the portions (27A, 27b) made the hole for the mounting legs (4) by means of a thread.

13. The device according to claim 10, characterized in that one of the portions (27A, 27b) made the hole for the mounting legs (4) by means of a thread.



 

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