Leather flattening device

Abstract

The utility model discloses a leather flattening device, and aims to provide a leather flattening device which can reduce the probability that two symmetrical ends are uneven after leather flattening work. The device comprises a working frame and a pressing plate, the working frame comprises a bottom plate and two side plates, the two side plates are symmetrically distributed at the left end and the right end of a pressing plate groove of the bottom plate, a switch assembly is installed in a moving groove in the bottom end of each side plate, the working frame is detachably connected with a moving plate, and an electric cylinder is installed on a moving rod of the moving plate and electrically connected with the switch assembly. A lead screw on the electric cylinder is connected with the pressing plate, the two limiting blocks are symmetrically distributed at the left end and the right end of the pressing plate, and the limiting blocks correspond to the moving grooves in a one-to-one mode. The leather flattening device has the beneficial effects that the purpose of reducing the probability that two symmetrical ends are uneven after the leather flattening work can be achieved; the inspection and maintenance work of the working frame and the pressing plate is facilitated; and the effect that the electric cylinder can be started to work and pushed to work at the same time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of leather processing, in particular to a leather flattening device. Background Art

[0002] Leather refers to animal hides that have been denatured and rendered non-perishable through physical and chemical processes such as dehairing and tanning. It is composed of natural protein fibers tightly woven in three dimensions. Its surface features a unique grain layer, resulting in a natural texture and luster, and a pleasant feel. Therefore, it is widely used in household leather, defense leather, industrial and agricultural leather, and cultural and sporting goods leather.

[0003] Of course, leather must be processed before it can be used. If the leather is left for too long, it will become deformed, wrinkled, and difficult to care for. Manual care is not only time-consuming and labor-intensive, but also due to the softness of the leather, the smoothness of the leather after care is not satisfactory. Therefore, the flattening and finishing of the leather needs to be performed by equipment.

[0004] China Patent Authorization Publication No. CN219195002U, Authorization Publication Date June 16, 2023, discloses a leather flattening device comprising a workbench, a fixed upright frame fixedly mounted on the workbench, two elongated chutes formed on either side of the fixed upright frame, a first electric cylinder fixedly mounted within each of the two elongated chutes, a slider fixedly connected to the telescopic end of the first electric cylinder, the slider movably connected to the elongated chutes, a connecting rod fixedly mounted on one side of the slider, a fixed plate fixedly mounted on the lower surface of the connecting rod, a second electric cylinder fixedly mounted on the lower surface of the fixed plate, and a flat plate fixedly connected to the telescopic end of the second electric cylinder; fixed housings fixedly mounted at the four corners of the workbench, a motor fixedly mounted within the fixed housing, a rotating shaft fixedly connected to the output end of the motor, a connecting member fixedly mounted on the connecting member, and a fixing member fixedly mounted on the connecting member. A disadvantage of this technical solution is that when flattening the leather, after the four corners of the leather are moved under the control of the fixing member, the operation of the first and second electric cylinders is directly controlled to push the flattening plate. However, the up and down movement of the pressing plate here is not carried out because there is no limiting component installed on the pressing plate, especially on the edge, and no limiting operation is performed. Therefore, the pressing plate may deviate to one side when moving up and down, that is, it will tilt. In this way, even if the entire pressing plate is pressed on the leather, the force on each end of the leather will also be deviated, which will cause uneven force on the leather flattening work, that is, the leather may be flat at one end and have a raised position at the other end after being pressed.

[0005] In summary, a structure can be provided to allow the forces at each end of the leather to be balanced, thereby smoothly carrying out the leather flattening work. Utility Model Content

[0006] The utility model aims to overcome the deficiency of the leather flattening device in the prior art that no limiting component is installed, and provides a leather flattening device which can reduce the probability of unevenness at both ends of the leather after flattening.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A leather flattening device comprises a working frame and a pressing plate, the working frame comprises a bottom plate and two side plates, the bottom plate is provided with a pressing plate groove, the two side plates are symmetrically distributed at the left and right ends of the pressing plate groove, the bottom ends of the side plates are connected to the bottom plate, the bottom ends of the side plates are provided with a movable groove, a switch assembly is installed in the movable groove, the working frame is installed with a movable plate, the working frame and the movable plate are detachably connected, a movable rod is installed on the movable plate, an electric cylinder is installed on the movable rod, the electric cylinder is electrically connected to the switch assembly, a screw rod is installed on the electric cylinder, the pressing plate is connected to the screw rod, two limit blocks are installed on the pressing plate, the two limit blocks are symmetrically distributed at the left and right ends of the pressing plate, and the limit blocks correspond one to one to the movable groove.

[0009] This design can be installed into a work frame through the bottom plate and two side plates. The bottom plate is provided with a pressure plate groove, and the two side plates can be symmetrically distributed on the left and right ends of the pressure plate groove, so that the bottom end of the side plate is well connected to the bottom plate, so that the leather can be controlled to be placed on the pressure plate groove. Of course, the front and back ends of the leather naturally need to be limited. The front and back ends of the leather can be limited with plywood to clamp the leather and the bottom plate. After the leather limiting work is done, it is necessary to flatten the leather. There is a movable groove at the bottom of the side panel here, and the switch assembly is installed in the movable groove. A movable plate is also installed on the work frame. This movable plate is detachably connected to the work frame, that is, the movable plate can be controlled to move back and forth under the limiting effect of the work frame, and a movable rod is installed on the movable plate, an electric cylinder is installed on the movable rod, and a screw rod is installed on the electric cylinder. The pressing plate is connected to the screw rod, that is, driven by the movable plate, the movable rod, the electric cylinder, the screw rod and the pressing plate move back and forth accordingly. This is the only work, because it has not yet been completed. The leather is in contact with the leather, so the leather flattening work cannot be carried out. In this way, the control of the electric cylinder is required. A switch component is installed in the moving groove, and two limit blocks are installed on the pressure plate. The two limit blocks are symmetrically distributed on the left and right ends of the pressure plate, and the limit blocks correspond to the moving grooves one by one. In this way, when the control pressure plate moves slightly downward, the limit blocks will be driven downward, that is, the limit blocks are not in contact with the switch component. Then the electric cylinder will start working immediately, thereby pushing the pressure plate downward through the screw rod, so that the pressure plate presses the leather. In this way, the forward and backward movement of the pressure plate can smoothly flatten the leather. Of course, the electric cylinder here needs to be installed with a single-chip microcomputer. In this way, when the switch component is not in contact, the electric cylinder can automatically start working to push the pressure plate down. Of course, the upward movement of the pressure plate also needs to be controlled by the electric cylinder. Therefore, a switch needs to be installed on the workbench, and the electric cylinder and the switch are also electrically connected. In this way, the control of the switch can also control the up and down movement of the pressure plate. It is worth noting that the limit block here always works under the limiting effect of the moving groove, whether it is moving up or down. This can reduce the limit block, that is, reduce the probability of left and right height deviations when the pressure plate moves up and down, so as to achieve the purpose of reducing the probability of unevenness at both ends of the leather after flattening.

[0010] Preferably, a top plate is mounted on the work frame, the top ends of the side plates are detachably connected to the top plate, and the movable plate is placed between the top plate and the bottom plate. This design allows the top plate to be mounted on the work frame, and the top ends of the side plates to be connected to the top plate. This connection method is a detachable connection, so that the top plate can be smoothly installed and removed to inspect or repair the components inside the work frame. The movable plate is placed between the top plate and the bottom plate, so when controlling the up and down movement of the movable plate, the movable plate can be moved under the limiting effect of the top plate and the bottom plate, thereby reducing the probability of the movable plate detaching from the work frame during movement.

[0011] Preferably, a push cylinder is mounted on the top plate, wherein the thickness of the upper and lower ends of the push cylinder is greater than the thickness of the upper and lower ends of the top plate, and a push rod is mounted on the push cylinder, wherein one end of the push rod is connected to the push cylinder, and the other end of the push rod is connected to the movable plate, and the push cylinder is electrically connected to the switch assembly. In this design, by mounting the push cylinder on the top plate, the thickness of the upper and lower ends of the push cylinder is greater than the thickness of the upper and lower ends of the top plate, so that the push rod mounted on the push cylinder will not be blocked by the top plate, that is, one end of the push rod can be connected to the push cylinder, and the other end can be connected to the movable plate, so that the work of the push cylinder is to allow the push rod to move back and forth, that is, to push the movable plate to move back and forth, so that the movable plate can drive the pressing plate to move back and forth, that is, to flatten the leather in the pressing plate groove. Of course, the pushing electric cylinder here is electrically connected to the switch assembly. So after the limit block is out of contact with the switch assembly, the pushing electric cylinder can also start working. When pressing down the leather, it also starts to flatten the leather by moving it back and forth. It is simple and practical.

[0012] Preferably, the side panels are provided with a first and second limiting slots, with the left and right ends of the movable plate respectively placed within the first limiting slots, and the movable slots are connected to the second limiting slots. By providing the first and second limiting slots on the side panels, the left and right ends of the movable plate are respectively placed within the first limiting slots. This allows the movable plate to move forward and backward at all times under the restraining effect of the first limiting slots, resulting in stable forward and backward movement. The movable slots are connected to the second limiting slots, so when controlling the up and down movement of the pressure plate, the limiting blocks are always restrained by the restraining effect of the movable slots.

[0013] Preferably, the movable plate is provided with a slot, the top end of the movable rod matches the slot, and the electric cylinder is connected to the bottom end of the movable rod. In this design, by providing the slot on the movable plate and the top end of the movable rod matching the slot, the top end of the movable rod can be inserted into the slot, so that the movable rod and the movable plate are connected, and the electric cylinder is connected to the bottom end of the movable rod. In this way, when the movable plate is controlled to move back and forth, the electric cylinder will also be driven to move back and forth under the operation of the movable rod. Of course, the pressure plate connected to the screw rod of the electric cylinder is also driven to move back and forth, so that the leather is pressed back and forth by the pressure plate to be flattened.

[0014] Preferably, the limit block is connected to the pressing plate, and the limit block and the pressing plate are arranged in a mountain shape, and the distance between the left and right ends of the pressing plate groove is equal to the distance between the two limit blocks. This design ensures that the limit block is well connected to the pressing plate, and the limit block and the pressing plate are arranged in a mountain shape, and the distance between the left and right ends of the pressing plate groove is equal to the distance between the two limit blocks. In this way, the contact area with the leather can be increased, thereby smoothly flattening the leather and reducing the probability of uncontacted and unflattened areas of the leather.

[0015] The beneficial effects of the utility model are: it can achieve the purpose of reducing the probability of unevenness at both ends of the leather after flattening; it is convenient for checking and repairing the working frame and the pressing plate; it has the effect of being able to start the work of the electric cylinder and push the work of the electric cylinder at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection of the push electric cylinder of the utility model;

[0019] Figure 4 This is a schematic diagram of a working state of the utility model;

[0020] Figure 5 This is another working state schematic diagram of the utility model;

[0021] Figure 6 yes Figure 5 Enlarged cross-sectional view at point A in the middle.

[0022] In the figure: 1. Top plate, 2. Side plate, 3. Bottom plate, 4. Moving plate, 5. Moving rod, 6. Electric cylinder, 7. Pressing plate, 8. Limiting slot 1, 9. Limiting slot 2, 10. Pressing plate slot, 11. Card slot, 12. Moving slot, 13. Limit block, 14. Screw rod, 15. Switch assembly, 16. Pushing electric cylinder, 17. Pushing rod. DETAILED DESCRIPTION

[0023] The utility model is further described below with reference to the accompanying drawings and specific implementation methods.

[0024] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 In the embodiment shown, a leather flattening device includes a working frame and a pressing plate 7. The working frame includes a bottom plate 3 and two side plates 2. A pressing plate groove 10 is provided on the bottom plate 3. The two side plates 2 are symmetrically distributed at the left and right ends of the pressing plate groove 10. The bottom end of the side plate 2 is connected to the bottom plate 3. A movable groove 12 is provided at the bottom end of the side plate 2. A switch assembly 15 is installed in the movable groove 12. A movable plate 4 is installed on the working frame. The working frame and the movable plate 4 are detachably connected. A movable rod 5 is installed on the movable plate 4. An electric cylinder 6 is installed on the movable rod 5. The electric cylinder 6 is electrically connected to the switch assembly 15. A screw rod 14 is installed on the electric cylinder 6. The pressing plate 7 is connected to the screw rod 14. Two limit blocks 13 are installed on the pressing plate 7. The two limit blocks 13 are symmetrically distributed at the left and right ends of the pressing plate 7. The limit blocks 13 correspond one to one to the movable groove 12.

[0025] like Figure 1 、 Figure 2 and Figure 3 As shown, a top plate 1 is mounted on the work frame, the top ends of the side plates 2 are detachably connected to the top plate 1, and a movable plate 4 is positioned between the top plate 1 and the bottom plate 3. A push cylinder 16 is mounted on the top plate 1, the thickness of the top and bottom ends of the push cylinder 16 being greater than the thickness of the top plate 1. A push rod 17 is mounted on the push cylinder 16, one end of the push rod 17 being connected to the push cylinder 16, and the other end of the push rod 17 being connected to the movable plate 4. The push cylinder 16 is electrically connected to the switch assembly 15.

[0026] like Figure 2 、 Figure 4 and Figure 5 As shown, side panel 2 is provided with stopper slot 1 8 and stopper slot 2 9. The left and right ends of movable panel 4 are respectively placed in the two stopper slots 1 8. Moving slot 12 is connected to stopper slot 2 9. Moving panel 4 is provided with a latching slot 11. The top end of movable rod 5 mates with latching slot 11. Electric cylinder 6 is connected to the bottom end of movable rod 5. Stopper block 13 is connected to pressure plate 7. Stopper block 13 and pressure plate 7 are arranged in a mountain shape. The distance between the left and right ends of pressure plate slot 10 is equal to the distance between the two stopper blocks 13.

[0027] First, install the work frame. The work frame here not only includes a bottom plate 3 and two side plates 2, but also includes a top plate 1. The bottom plate 3 is provided with a pressure plate groove 10, and the two side plates 2 are symmetrically distributed at the left and right ends of the pressure plate groove 10. The bottom end of the side plate 2 is connected to the bottom plate 3, and the top end of the side plate 2 is detachably connected to the top plate 1. The connection between the top end of the side plate 2 and the top plate 1 can be directly selected by screws and screw holes, so as to carry out the installation and disassembly of the top plate 1, thereby carrying out the inspection and maintenance of the work frame and the pressure plate 7.

[0028] Of course, the pressing plate 7 mentioned here is naturally connected to the workbench. It is worth noting that a limit groove 1 8 and a limit groove 2 9 are provided on the side plate 2, and the left and right ends of the movable plate 4 are respectively placed in the two limit grooves 1 8. In other words, the movable plate 4 is in a limited state of the top plate 1 and the two limit grooves 1 8, and the bottom end of the side plate 2 is provided with a movable groove 12. The movable groove 12 is not only connected with the limit groove 2 9, but also has a switch assembly 15 installed inside. Of course, the movable plate 4 is placed between the top plate 1 and the bottom plate 3. The movable plate 4 is provided with a card slot 11, and the top end of the movable rod 5 matches the card slot 11, that is, the top end of the movable rod 5 can be inserted into the card slot 11. , the connection between the moving rod 5 and the moving plate 4 is made by screw connection. The bottom end of the moving rod 5 is installed with the electric cylinder 6, and the top plate 1 is also installed with a pushing electric cylinder 16. The thickness of the upper and lower ends of the pushing electric cylinder 16 is greater than the thickness of the upper and lower ends of the top plate 1, so the pushing rod 17 installed on the pushing electric cylinder 16 will not be blocked by the top plate 1, that is, one end of the pushing rod 17 can be connected to the pushing electric cylinder 16, and the other end can be connected to the moving plate 4. The pushing electric cylinder 16 and the electric cylinder 6 are both electrically connected to the switch assembly 15, and the screw rod 14 on the electric cylinder 6 can be connected to the pressing plate 7, so the leather flattening device is made in this way.

[0029] In this case, it is necessary to flatten the leather. First, place the leather on the pressing plate groove 10 of the bottom plate 3. The front, back, left, and right ends of the leather are within the initial limit of the pressing plate groove 10. Then, the front and back ends of the leather need to be limited. Here, the front and back ends of the leather can be limited using a plywood to clamp the leather and the bottom plate 3. Of course, in order to ensure that all parts of the leather can be contacted by the pressing plate 7, that is, can be flattened, screws can also be used on the leather. Screw holes are provided on the bottom plate 3, so that the leather limiting work can also be carried out smoothly. In order to control the up and down and forward and backward movement of the pressing plate 7, a switch can also be installed on the workbench. The push cylinder 16 and the electric cylinder 6 here naturally need to be electrically connected to the switch, and the switch and switch assembly 15 need to be electrically connected to the external power supply.

[0030] Next, the leather flattening process can proceed smoothly. First, the pressing plate 7 is touched and slightly moved toward the leather at the pressing plate groove 10. This allows the limit blocks 13 installed on the left and right ends of the pressing plate 7 to break contact with the switch assembly 15. A single-chip microcomputer needs to be installed on the electric cylinder 6. This way, the switch assembly 15 is not touched, and this information can be transmitted to the single-chip microcomputer. After processing by the single-chip microcomputer, the information is transmitted to the electric cylinder 6, and the electric cylinder 6 can immediately start working. That is, the limit blocks 13 drive the pressing plate 7 to move toward the leather until it presses the leather. At the same time, the information processed by the single-chip microcomputer can also be transmitted to the push cylinder 16. It is necessary that this push cylinder 16 is electrically connected to the single-chip microcomputer. Then, the push cylinder 16 immediately controls the push rod 17 to move back and forth. In other words, it pushes the pressure plate 7 back and forth. Then, the leather is flattened while being pressed by the pressure plate. The force of the pressure plate 7 pressing the leather needs to be set to a size that allows the pressure plate 7 to move back and forth on the leather. In this way, the leather flattening work is carried out smoothly. It is worth noting that the up and down movement of the limit block 13 here is always carried out under the limiting effect of the movable groove 12. That is, whether it moves up or down, it can reduce the probability of the limit block 13, that is, the pressure plate 7, to have a left and right height deviation when moving up and down. This achieves the purpose of reducing the probability of unevenness at both ends of the leather after the flattening work. Of course, the upward movement of the pressure plate 7 is generally carried out under the control of a switch.

Claims

1. A leather flattening device, characterized in that: The invention comprises a working frame and a pressing plate (7), wherein the working frame comprises a bottom plate (3) and two side plates (2), wherein a pressing plate groove (10) is provided on the bottom plate (3), and the two side plates (2) are symmetrically distributed at the left and right ends of the pressing plate groove (10), wherein the bottom ends of the side plates (2) are connected to the bottom plate (3), and wherein the bottom ends of the side plates (2) are provided with a movable groove (12), wherein a switch assembly (15) is installed in the movable groove (12), and wherein a movable plate (4) is installed on the working frame, and wherein the working frame and the movable plate (4) are in a state of being ... The movable plate (4) is provided with a movable rod (5), the movable rod (5) is provided with an electric cylinder (6), the electric cylinder (6) is electrically connected to the switch assembly (15), the electric cylinder (6) is provided with a screw rod (14), the pressing plate (7) is connected to the screw rod (14), and two limit blocks (13) are provided on the pressing plate (7), the two limit blocks (13) are symmetrically distributed at the left and right ends of the pressing plate (7), and the limit blocks (13) correspond one to one with the movable groove (12).

2. The leather flattening device according to claim 1, characterized in that: A top plate (1) is installed on the work frame, the top ends of the side plates (2) are detachably connected to the top plate (1), and the movable plate (4) is placed between the top plate (1) and the bottom plate (3).

3. The leather flattening device according to claim 2, characterized in that: A pushing electric cylinder (16) is mounted on the top plate (1), wherein the thickness of the upper and lower ends of the pushing electric cylinder (16) is greater than the thickness of the upper and lower ends of the top plate (1), and a pushing rod (17) is mounted on the pushing electric cylinder (16), wherein one end of the pushing rod (17) is connected to the pushing electric cylinder (16), and the other end of the pushing rod (17) is connected to the moving plate (4), and the pushing electric cylinder (16) is electrically connected to the switch assembly (15).

4. The leather flattening device according to claim 1, characterized in that: The side plate (2) is provided with a limiting groove 1 (8) and a limiting groove 2 (9), the left and right ends of the movable plate (4) are respectively placed in the two limiting grooves 1 (8), and the movable groove (12) is connected to the limiting groove 2 (9).

5. The leather flattening device according to claim 1, characterized in that: The movable plate (4) is provided with a slot (11), the top end of the movable rod (5) matches the slot (11), and the electric cylinder (6) is connected to the bottom end of the movable rod (5).

6. The leather flattening device according to claim 1, characterized in that: The limit block (13) is connected to the pressure plate (7), and the limit block (13) and the pressure plate (7) are arranged in a mountain shape. The distance between the left and right ends of the pressure plate groove (10) is equal to the distance between the two limit blocks (13).

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