Cutting equipment for cutting sealing gasket

Abstract

The cutting equipment comprises a machine frame, a lower pressing wheel and an upper pressing wheel, the lower pressing wheel and the upper pressing wheel are both rotationally connected to the machine frame, transmission gears are arranged on the upper pressing wheel and the lower pressing wheel, the two transmission gears are meshed with each other, and the lower pressing wheel and the upper pressing wheel are both rotationally connected to the machine frame. The lower pressing wheel is provided with a knife edge for cutting the sealing gasket in the circumferential direction, and the upper pressing wheel is provided with a pressing block used for making the sealing gasket make contact with the knife edge. The sealing gasket cutting device has the effect of reducing injuries to workers in the sealing gasket cutting process.

Description

Technical Field

[0001] This application relates to the field of cutting equipment, and more particularly to a cutting device for cutting gaskets. Background Technology

[0002] In the multi-way valve of the thermal management system of new energy vehicles, the sealing gasket is used to seal the opening and closing of the water valve. The failure of the sealing gasket will directly lead to the failure of the multi-way valve, resulting in liquid leakage and instability of the working state of the multi-way valve, which in turn affects the normal operation of the thermal management system. The sealing gasket is usually manufactured using a vulcanizing machine. The sealing gasket mold in the vulcanizing machine is used to shape the molten rubber that is introduced. The vulcanized rubber sheet needs to be cut to form the sealing gasket.

[0003] The injection-molded rubber sheet is arc-shaped. The sealing gasket is cut manually by placing it on a template and pressing it to cut. However, the arc-shaped rubber cannot be fixed well, and the cutting knife can easily scratch the workers. There is an urgent need for a cutting device for cutting water valve sealing gaskets. Utility Model Content

[0004] In order to reduce the risk of injury to workers during the cutting of gaskets, this application provides a cutting device for cutting gaskets.

[0005] This application provides a cutting device for cutting sealing gaskets, which adopts the following technical solution:

[0006] A cutting device for cutting gaskets includes a frame, a lower pressure roller, and an upper pressure roller. The lower pressure roller and the upper pressure roller are rotatably connected to the frame. Both the upper pressure roller and the lower pressure roller are provided with transmission gears, which mesh with each other. The lower pressure roller is provided with a circumferential cutting edge for cutting the gasket, and the upper pressure roller is provided with a pressure block for bringing the gasket into contact with the cutting edge.

[0007] By adopting the above technical solution, the worker places the injection-molded rubber sheet on the blade of the lower pressure roller. The arc-shaped rubber sheet can fit against the lower pressure roller. Then, the lower pressure roller is rotated, and the lower pressure roller and the upper pressure roller rotate simultaneously under the meshing of the transmission gear. The pressure block of the upper pressure roller squeezes the rubber sheet against the blade, completing the cutting of the rubber sheet. The remaining material after cutting can fall freely, and the worker can remove the rubber pad from the blade. There is no need for manual cutting by the worker, which reduces the risk of injury to the worker. Moreover, the cutting accuracy of the sealing gasket is greatly improved by the equipment cutting.

[0008] Optionally, the cutting edge includes a mounting plate, a blade for cutting the gasket, and a fixing bolt. The pressure roller has a mounting groove, the mounting plate is located in the mounting groove, the blade is disposed on the mounting plate, and the fixing bolt is used to install the mounting plate into the mounting groove.

[0009] By adopting the above technical solution, the blade is prone to wear after long-term cutting operations. Workers need to replace the blade in time. Workers remove the mounting plate from the mounting groove by fixing bolts. After the blade is removed, a new blade is replaced. Then, the mounting plate is installed into the mounting groove by fixing bolts. The mounting groove plays a positioning role, so that the new blade can better align with the pressure block on the pressure roller.

[0010] Optionally, the pressure roller is provided with a pusher for pushing the sealing gasket away from the knife edge. The pressure roller has a cavity that communicates with the mounting groove. The pusher includes a sealing sheet, a push rod, and a return spring. The sealing sheet is located in the cavity and abuts against the inner sidewall of the cavity. The sealing sheet slides along the cavity towards or away from the knife edge. The return spring is used to keep the sealing sheet away from the knife edge. One end of the push rod is disposed on the sealing sheet, and the other end of the push rod extends out of the pressure roller.

[0011] By adopting the above technical solution, after the sealing gasket is cut, it will be embedded in the cutting edge. At this time, the sealing gasket and the cavity form a sealed space, and the sealing plate divides this sealed space into two parts. When it is necessary to remove the sealing gasket from the cutting edge, the operator can push the push rod. The push rod overcomes the elastic force of the return spring and drives the sealing plate to move. The air pressure in the sealed space between the sealing plate and the sealing gasket increases, pushing the sealing gasket out of the cutting edge. The operator releases the push rod, and the push rod completes the reset under the action of the return spring. The push part has a simple structure, is easy for operators to operate, and reduces the contact between the operator and the cutting edge when picking up the sealing gasket.

[0012] Optionally, a clearance platform is provided on the pressure roller, and one end of the push rod extends through the clearance platform. When there is a sealing gasket inside the blade, the end of the push rod away from the blade is still located outside the virtual cylinder where the outer wall of the pressure roller is located.

[0013] By adopting the above technical solution, the clearance platform facilitates the operation of the push rod by the staff. When there is a sealing gasket on the blade, the push rod is at the limit position of extending out of the lower pressure wheel. The push rod is still located outside the virtual cylinder on the outer side wall of the lower pressure wheel. This realizes that during the rotation of the lower pressure wheel, the push rod will contact the upper pressure wheel and be pushed into the cavity by the upper pressure wheel, which facilitates the automatic push-out of the sealing gasket.

[0014] Optionally, the ejector further includes an ejector block disposed on the upper pressure roller, the thickness of which gradually increases along the rotation direction of the upper pressure roller.

[0015] By adopting the above technical solution, the push block is used to abut the push rod, eliminating the need for manual operation of the push rod by the operator. As the upper and lower pressure rollers rotate, the push block drives the push rod to move. The push rod overcomes the return spring and pushes the sealing gasket out of the blade edge, further reducing direct contact between the operator and the blade edge, improving the stability of the equipment and enhancing the safety of the operator.

[0016] Optionally, the ejector further includes a rotating wheel, which is rotatably connected to the ejector rod and is used to abut against the ejector block.

[0017] By adopting the above technical solution, the rotating wheel can achieve smoother contact between the push rod and the push block, reducing wear between the push rod and the push block and extending the service life of the equipment.

[0018] Optionally, the pressure roller is provided with a limiting frame for restricting the rubber sheet.

[0019] By adopting the above technical solution, the limiting frame is used by workers to place rubber sheets, which improves the accuracy of cutting the sealing gasket.

[0020] Optionally, the limiting frame is provided with a connector, which includes a connecting rod and a connecting nut. One end of the connecting rod is disposed on the limiting frame, and the other end of the connecting rod passes through the pressure roller. The connecting nut is threadedly connected to the connecting rod.

[0021] By adopting the above technical solution, workers can adapt to rubber sheets of different shapes and sizes by changing the limiting frame, thereby increasing the applicability of the equipment.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The blade on the lower pressure roller cooperates with the pressure block on the upper pressure roller to cut the rubber sheet off the sealing gasket, eliminating the need for manual cutting by workers and improving worker safety;

[0024] 2. The ejector makes it easy to push the sealing gasket embedded in the blade out of the blade, further reducing the number of times the operator comes into contact with the blade.

[0025] 3. The limiting frame makes it easier for workers to position and place the rubber sheet, improving the accuracy of gasket cutting. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a cutting device used for cutting gaskets.

[0027] Figure 2 yes Figure 1 A schematic diagram showing the fit between the lower and upper pressure rollers.

[0028] Figure 3 yes Figure 1 Cross-sectional view of the lower and middle pressure rollers compared to the upper pressure roller.

[0029] Figure 4 yes Figure 2 A schematic diagram of the middle connector.

[0030] Reference numerals: 1. Frame; 2. Lower pressure roller; 21. Mounting groove; 22. Clearing platform; 23. Cavity; 24. Transmission gear; 3. Upper pressure roller; 31. Pressure block; 4. Drive motor; 5. Blade; 51. Mounting plate; 52. Blade; 53. Fixing bolt; 6. Ejector; 61. Sealing plate; 62. Ejector rod; 63. Return spring; 64. Ejector block; 65. Rotating wheel; 7. Limiting frame; 71. Connector; 711. Connecting rod; 712. Connecting nut. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.

[0032] This application discloses a cutting device for cutting gaskets. (Refer to...) Figure 1 and Figure 2 A cutting device for cutting gaskets includes a frame 1, a lower pressure roller 2, an upper pressure roller 3, and a drive motor 4. The lower pressure roller 2 is horizontally arranged and rotatably connected to the frame 1. The upper pressure roller 3 is located above the lower pressure roller 2 and rotatably connected to the frame 1. The drive motor 4 is fixedly mounted on the frame 1 and drives the upper pressure roller 3 to rotate. Both the lower pressure roller 2 and the upper pressure roller 3 are provided with transmission gears 24. The transmission gears 24 are coaxially arranged with the corresponding pressure rollers and are fixedly mounted on the corresponding pressure rollers. The two transmission gears 24 mesh with each other.

[0033] Reference Figure 1 and Figure 2 The pressure roller 2 has three cutting edges 5, which are evenly distributed along the axis of the pressure roller 2. Each cutting edge 5 includes a mounting plate 51, a blade 52, and a fixing bolt 53. The pressure roller 2 has three mounting grooves 21, which correspond to the three cutting edges 5. The mounting plate 51 is snapped into the mounting groove 21. The blade 52 is fixedly mounted on the mounting plate 51. The blade 52 has a rectangular cross-section with rounded corners and is used to cut rubber sheets. The mounting plate 51 has a countersunk hole. The tail of the fixing bolt 53 passes through the mounting plate 51 and is threaded onto the pressure roller 2. The head of the fixing bolt 53 is located in the countersunk hole.

[0034] Reference Figure 2 and Figure 3The lower pressure roller 2 is equipped with an ejector 6, which includes a sealing plate 61, an ejector rod 62, a return spring 63, an ejector block 64, and a rotating wheel 65. A clearance platform 22 is provided on the side wall of the lower pressure roller 2 away from the blade edge 5. A cavity 23 is provided inside the lower pressure roller 2. The cavity 23 is cylindrical, and one end of the cavity 23 is connected to three mounting slots 21. The sealing plate 61 is located inside the cavity 23, abutting against the inner side wall of the cavity 23, which is divided into two spaces. The sealing plate 61 slides along the length of the cavity 23 and is connected within it. The length direction of the ejector rod 62 is parallel to the length direction of the cavity 23, and one end of the ejector rod 62 is fixedly mounted. The other end of the push rod 62 is placed on the sealing plate 61 and extends out of the clearance platform 22 away from the blade edge 5. The return spring 63 is located in the cavity 23. The length direction of the return spring 63 is parallel to the length direction of the cavity 23. The return spring 63 is located on the side of the sealing plate 61 away from the push rod 62. One end of the return spring 63 is fixedly set on the sealing plate 61, and the other end of the return spring 63 is fixedly set on the inner wall of the cavity 23. When the blade edge 5 is embedded with a sealing gasket, one end of the push rod 62 is located outside the virtual cylinder on the outer wall of the lower pressure wheel 2. The axis of the rotating wheel 65 is parallel to the axis direction of the lower pressure wheel 2. The rotating wheel 65 is rotatably connected to the push rod 62.

[0035] Reference Figure 2 and Figure 3 Three pressure blocks 31 are fixedly installed on the upper pressure roller 3. The three pressure blocks 31 correspond to the three cutting edges 5. The push-out block 64 is fixedly installed on the upper pressure roller 3. The distance from the side wall of the push-out block 64 to the axis of the upper pressure roller 3 gradually increases along the rotation direction of the upper pressure roller 3.

[0036] Reference Figure 2 and Figure 4 A limiting frame 7 is provided on the lower pressure roller 2, and a connector 71 is provided on the limiting frame 7. The connector 71 includes two connecting rods 711 and two connecting nuts 712. The two connecting rods 711 are distributed along the length direction of the lower pressure roller 2, and the length direction of the connecting rods 711 is parallel to the radial direction of the lower pressure roller 2. One end of the connecting rod 711 is fixedly set on the limiting frame 7, and the other end of the connecting rod 711 passes through the lower pressure roller 2 and exits through the clearance platform 22. The two connecting nuts 712 correspond one-to-one with the two connecting rods 711. The connecting nuts 712 are threadedly connected to the connecting rods 711 and abut against the clearance platform 22. The connecting rods 711 are located inside the virtual cylinder on the outer wall of the lower pressure roller 2.

[0037] The implementation principle of a cutting device for cutting gaskets according to an embodiment of this application is as follows: The operator places the rubber sheet for cutting the gasket into the limiting frame 7, and then starts the drive motor 4. The drive motor 4 drives the upper pressure roller 3 to rotate. Under the meshing of the transmission gear 24, the lower pressure roller 2 rotates synchronously. The rotation direction of the lower pressure roller 2 is opposite to that of the upper pressure roller 3. The cutting edge 5 and the pressure block 31 cut the gasket off the rubber sheet. The gasket is embedded in the cutting edge 5. The lower pressure roller 2 continues to rotate until the rotating wheel 65 abuts against the ejector block 64. The thickness of the ejector block 64 gradually increases. The rotating wheel 65 drives the ejector rod 62 to move. The ejector rod 62 drives the sealing sheet 61 to move against the return spring 63, so that the gasket is detached from the cutting edge 5, making it easy for the operator to collect.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cutting device for cutting sealing gaskets, characterized in that: The application relates to a cutting device for cutting sealing pads, which comprises a rack (1), a lower pressing wheel (2) and an upper pressing wheel (3), the lower pressing wheel (2) and the upper pressing wheel (3) are rotationally connected to the rack (1), transmission gears (24) are arranged on the upper pressing wheel (3) and the lower pressing wheel (2), the two transmission gears (24) are in mesh with each other, a cutting edge (5) for circumferentially cutting sealing pads is arranged on the lower pressing wheel (2), and a pressing block (31) for enabling the sealing pads to contact the cutting edge (5) is arranged on the upper pressing wheel (3).

2. The cutting apparatus of claim 1, wherein: The cutting edge (5) comprises a mounting sheet (51), a blade (52) for cutting sealing pads and fixing bolts (53), a mounting groove (21) is formed in the lower pressing wheel (2), the mounting sheet (51) is located in the mounting groove (21), the blade (52) is arranged on the mounting sheet (51), and the fixing bolts (53) are used for mounting the mounting sheet (51) into the mounting groove (21).

3. The cutting apparatus of claim 2, wherein: A pushing piece (6) for pushing the sealing pads to the cutting edge (5) is arranged on the lower pressing wheel (2), a cavity (23) is formed in the lower pressing wheel (2), the cavity (23) is in communication with the mounting groove (21), the pushing piece (6) comprises a sealing sheet (61), a pushing rod (62) and a reset spring (63), the sealing sheet (61) is located in the cavity (23) and abuts against the inner wall of the cavity (23), the sealing sheet (61) is slidably connected to the cavity (23) and approaches or moves away from the cutting edge (5), the reset spring (63) is used for keeping the sealing sheet (61) away from the cutting edge (5), one end of the pushing rod (62) is arranged on the sealing sheet (61), and the other end of the pushing rod (62) penetrates through the lower pressing wheel (2).

4. The cutting apparatus of claim 3, wherein: An avoiding platform (22) is formed in the lower pressing wheel (2), one end of the pushing rod (62) penetrates through the avoiding platform (22), and when the cutting edge (5) contains a sealing pad, the end of the pushing rod (62) away from the cutting edge (5) is still located outside a virtual cylinder formed by the outer wall of the lower pressing wheel (2).

5. The cutting apparatus of claim 4, wherein: The pushing piece (6) further comprises a pushing block (64), the pushing block (64) is arranged on the upper pressing wheel (3), and the thickness of the pushing block (64) gradually increases along the rotation direction of the upper pressing wheel (3).

6. The cutting apparatus of claim 5, wherein: The pushing piece (6) further comprises a rotating wheel (65), the rotating wheel (65) is rotationally connected to the pushing rod (62), and the rotating wheel (65) is used for abutting against the pushing block (64).

7. The cutting apparatus of claim 1, wherein: A limiting frame (7) for limiting rubber sheets is arranged on the lower pressing wheel (2).

8. The cutting apparatus of claim 7, wherein: The limiting frame (7) is provided with a connecting piece (71), the connecting piece (71) comprises a connecting rod (711) and a connecting nut (712), one end of the connecting rod (711) is arranged on the limiting frame (7), the other end of the connecting rod (711) penetrates through the lower pressing wheel (2), and the connecting nut (712) is threadedly connected to the connecting rod (711).

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