Film cutting and pressing mechanism and cutting device

Abstract

The invention provides a cutting and film pressing mechanism and a cutting device, and relates to the technical field of film cutting, the cutting and film pressing mechanism comprises a knife rest and a film pressing frame, the knife rest is connected with the lifting end of a vertical lifting mechanism, and a cutter is fixed to the knife rest; in the conveying direction of the membrane, one end of the membrane pressing frame is fixedly connected with the knife rest, the other end of the membrane pressing frame is provided with a pressing strip, the pressing strip is arranged above the membrane taking platform in parallel, and the pressing strip is arranged in the conveying direction of the membrane and used for pressing the cut membrane on the membrane taking platform; the pressing strip can flatten the diaphragm on the die taking platform, bending and arching of the diaphragm are avoided, the cut diaphragm can be fully adsorbed by the die taking platform, and the problem of frequent alarming and shutdown caused by the air leakage phenomenon is avoided.

Description

Technical Field

[0001] This invention relates to the field of diaphragm cutting technology, and more particularly to a cutting and pressing mechanism and a cutting device. Background Technology

[0002] Aluminum-plastic composite film is a highly ductile, high-barrier multilayer composite material composed of various plastics, aluminum foil, and adhesives, and it is widely used in various fields. During the production of aluminum-plastic film, a cutting device is required to cut the film into the appropriate size for use.

[0003] In existing cutting devices, before the cutter cuts the aluminum-plastic film, the film-taking platform moves under the aluminum-plastic film. After the cutter cuts the film, the film-taking platform uses vacuum suction to pick up the film. However, during use, it was found that the cut aluminum-plastic film has curling and arching at the edges, and the vacuum suction cups on the film-taking platform may have leakage, causing alarms and shutdowns.

[0004] Therefore, a structure needs to be developed to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a cutting and pressing mechanism and a cutting device to solve the problems existing in the prior art. The pressing strip can flatten the film on the mold taking platform, avoid the film from bending and arching, and enable the mold taking platform to fully absorb the cut film, avoiding the problem of frequent alarm shutdown caused by air leakage.

[0006] To achieve the above objectives, the present invention provides the following solution: A cutting and pressing film mechanism includes a knife holder and a pressing film frame. The knife holder is connected to the lifting end of a vertical lifting mechanism, and a cutter is fixed on the knife holder. In the film conveying direction, one end of the pressing film frame is fixedly connected to the knife holder, and a pressure strip is installed at the other end. The pressure strip is arranged parallel above the mold-taking platform and along the film conveying direction to press the cut film flat on the mold-taking platform.

[0007] In one embodiment, the film pressing frame includes a first mounting plate, a compression spring, and an anti-detachment block. In the film conveying direction, one end of the first mounting plate is fixedly connected to the knife holder, and the other end is vertically connected to a mounting rod. The mounting rod is slidably arranged vertically. The pressure strip is fixed to the bottom of the mounting rod. The compression spring is sleeved on the mounting rod, with its bottom end abutting against the pressure strip and its top end abutting against the first mounting plate. The anti-detachment block is fixed to the top of the mounting rod to prevent the mounting rod from falling off the first mounting plate.

[0008] As one embodiment, it also includes a second mounting plate fixed to the first mounting plate, the second mounting plate having a through hole, and a guide sleeve fixed to the second mounting plate, the cylindrical guide cavity of the guide sleeve being coaxially arranged with the through hole; the mounting rod passing through the through hole and the guide sleeve, the top end of the compression spring abutting against the bottom end of the guide sleeve; and the anti-detachment block located above the through hole.

[0009] As one embodiment, along the conveying direction of the diaphragm, the first mounting plate is provided with a first strip-shaped hole, and the second mounting plate is connected to the first mounting plate by bolts passing through the first strip-shaped hole.

[0010] As one embodiment, it also includes a third mounting plate fixed to the bottom end of the mounting rod, which has a second strip hole in the horizontal plane along a direction perpendicular to the diaphragm conveying direction. The third mounting plate is connected to the third mounting plate by bolts passing through the second strip hole.

[0011] As one embodiment, at least two pressure strips are provided at intervals in a horizontal plane along a direction perpendicular to the conveying direction of the diaphragm.

[0012] As one embodiment, a rubber strip is provided on the lower surface of the pressure strip.

[0013] As one embodiment, the vertical lifting mechanism includes a cylinder, the output end of which is connected to the tool holder for driving the tool holder to move vertically. The tool holder has an elastic reset mechanism so that the tool holder can reset after the force is released from the cylinder.

[0014] The present invention also provides a cutting device, including the cutting and pressing film mechanism, the film pulling mechanism, and the mold taking platform as described above; along the film conveying direction, the film pulling mechanism is located behind the cutter, and the film pulling mechanism includes a mold clamping assembly and a horizontal displacement assembly, the mold clamping assembly is used to clamp the film, and the horizontal displacement assembly is used to drive the mold clamping assembly to move along the film conveying direction; along the film conveying direction, the mold taking platform is located behind the cutter, and the upper surface of the mold taking platform has a suction cup, the suction cup being connected to a negative pressure adsorption device.

[0015] In one embodiment, the mold-taking platform is fixedly connected to the displacement driving component, which is used to drive the mold-taking platform to move horizontally and / or rise and fall.

[0016] The present invention has the following technical advantages over the prior art: This invention installs a film pressing frame on the cutter holder, and further installs pressure strips on the film pressing frame. When the cutter on the cutter holder cuts the film, the pressure strips on the film pressing frame can flatten the film on the mold-taking platform, preventing the film from bending or arching. This allows the mold-taking platform to fully absorb the cut film, avoiding air leakage and frequent alarm shutdowns, thus ensuring the continuity of production. Furthermore, the film pressing frame, mounted on the cutter holder, can rise and fall synchronously with the cutter holder, eliminating the need for an additional lifting mechanism and reducing the load on the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cutting and pressing mechanism in one embodiment of the present invention; Figure 2 This is a schematic diagram of the cutting device in one embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Knife holder; 2. Cutting knife; 3. Pressure strip; 4. First mounting plate; 5. Second mounting plate; 6. Third mounting plate; 7. Compression spring; 8. Anti-detachment block; 9. Mounting rod; 10. Guide sleeve; 11. First strip hole; 12. Second strip hole; 13. Cylinder; 14. Elastic reset mechanism; 15. Film pulling mechanism; 16. Demolding platform. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The purpose of this invention is to provide a cutting and pressing mechanism and a cutting device to solve the problems existing in the prior art. The pressing strip can flatten the film on the mold taking platform, avoid the film from bending and arching, and enable the mold taking platform to fully absorb the cut film, avoiding the problem of frequent alarm shutdown caused by air leakage.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: like Figure 1 , Figure 2 As shown, this embodiment provides a cutting and pressing mechanism, including a blade holder 1 and a pressing frame. The blade holder 1 is connected to the lifting end of a vertical lifting mechanism, and a cutter 2 for cutting film is fixed on the blade holder 1. The film in this embodiment can be aluminum-plastic film or other materials that are easy to curl after cutting. In the film conveying direction, one end of the pressing frame is fixedly connected to the blade holder 1, and the other end is equipped with a pressing strip 3. The pressing strip 3 is arranged parallel to the mold-taking platform 16 above it and is arranged along the film conveying direction to press the cut film flat on the mold-taking platform 16.

[0024] In use, after the diaphragm is conveyed to the set length under the cutter 2, the mold-taking platform 16 moves to the bottom of the diaphragm, and the cutter holder 1 descends under the drive of the vertical lifting mechanism. The descending cutter 2 cuts the diaphragm. At the same time, the film pressing frame descends synchronously with the cutter holder 1, and the pressure strip 3 presses the diaphragm flat on the mold-taking platform 16. The suction cup on the mold-taking platform 16 generates negative pressure to adsorb the diaphragm. Then the mold-taking platform 16 moves to transfer the cut diaphragm to the next station.

[0025] In this embodiment, a film pressing frame is installed on the cutter holder 1, and a pressure strip 3 is further installed on the film pressing frame. When the cutter 2 on the cutter holder 1 cuts the film, the pressure strip 3 on the film pressing frame can flatten the film on the mold taking platform 16, preventing the film from bending or arching. This allows the mold taking platform 16 to fully absorb the cut film, avoiding air leakage and frequent alarm shutdowns, thus ensuring the continuity of production. Moreover, the film pressing frame is installed on the cutter holder 1 and can rise and fall synchronously with the cutter holder 1, eliminating the need for an additional lifting mechanism to drive its rise and fall, thereby reducing the load on the device.

[0026] In this embodiment, two pressure strips 3 are provided, each corresponding to an edge on the width of the diaphragm. When the pressure strips 3 are pressed down, they flatten the two edges on the width of the diaphragm, thereby making the diaphragm tightly adhere to the upper surface of the mold-taking platform 16. Compared to using a single sheet of pressure plate to press the diaphragm, the pressure strips 3 save more material and reduce production costs. Furthermore, the flatness of the entire sheet of pressure plate is difficult to guarantee, making it difficult to ensure that all parts of the sheet of pressure plate are in contact with the diaphragm. The pressure strips 3 can reduce the flatness requirement. In addition, this embodiment further provides a rubber sheet or other elastic material on the lower surface of the pressure strips 3, which can compensate for the slight height difference between the lower surfaces of the two pressure strips 3, ensuring that both pressure strips 3 can flatten the edges of the diaphragm.

[0027] In this embodiment, the film pressing frame includes a first mounting plate 4, a compression spring 7, and an anti-detachment block 8. In the film conveying direction, one end of the first mounting plate 4 is fixedly connected to the knife holder 1, and the other end is vertically connected to a mounting rod 9. The mounting rod 9 is slidably arranged vertically. A pressure strip 3 is fixed to the bottom of the mounting rod 9, and each pressure strip 3 is connected to at least two mounting rods 9. The compression spring 7 is sleeved on the mounting rod 9, with its bottom end abutting against the pressure strip 3 and its top end abutting against the first mounting plate 4. The anti-detachment block 8 is fixed to the top of the mounting rod 9 to prevent the mounting rod 9 from falling off the first mounting plate 4. By setting the compression spring 7, on the one hand, the installation position accuracy of the pressure strip 3 can be reduced, so that the lower surface of the pressure strip 3 is below the cutter 2 in the unfallen state, ensuring that the pressure strip 3 has flattened the film when the cutter 2 cuts the film; on the other hand, the pressure strip 3 can adapt to films of different thicknesses, eliminating the need to adjust the height of the pressure strip 3 when cutting films of different thicknesses.

[0028] This embodiment also includes a second mounting plate 5 fixed on the first mounting plate 4. The second mounting plate 5 has a through hole and a guide sleeve 10 is also fixed on the second mounting plate 5. The cylindrical guide cavity of the guide sleeve 10 is coaxially arranged with the through hole. The mounting rod 9 passes through the through hole and the guide sleeve 10, and the top end of the compression spring 7 abuts against the bottom end of the guide sleeve 10. The anti-detachment block 8 is located above the through hole to prevent the mounting rod 9 from coming out of the guide sleeve 10 and the through hole.

[0029] In this embodiment, a first strip-shaped hole 11 is provided on the first mounting plate 4 along the conveying direction of the diaphragm, and the second mounting plate 5 is connected to the first mounting plate 4 by bolts passing through the first strip-shaped hole 11. Two or more first strip-shaped holes 11 can be provided to ensure the stability of the second mounting plate 5 during installation.

[0030] This embodiment also includes a third mounting plate 6 fixed to the bottom of the mounting rod 9. In the horizontal plane along the direction perpendicular to the diaphragm conveying (if the conveying direction of the diaphragm is defined as the length direction of the diaphragm, "in the horizontal plane along the direction perpendicular to the diaphragm conveying" refers to the width direction of the diaphragm), the third mounting plate 6 is provided with a second strip hole 12, and the third mounting plate 6 is connected to the third mounting plate 6 by bolts passing through the second strip hole 12.

[0031] In this embodiment, the vertical lifting mechanism includes a cylinder 13. The output end of the cylinder 13 is connected to the cutter holder 1, which is used to drive the cutter holder 1 to move vertically. The cutter holder 1 has an elastic reset mechanism 14, which allows the cutter holder 1 to reset after the force of the cylinder 13 is released. Normally, when the cylinder 13 is activated, the piston rod extends, causing the cutter holder 1 to descend rapidly to cut the diaphragm. After the piston rod of the cylinder 13 is shortened, the elastic reset mechanism 14 pushes the cutter holder 1 back to its original position.

[0032] Example 2: like Figure 1 , Figure 2As shown, this embodiment provides a cutting device, including a cutting and pressing film mechanism, a film pulling mechanism 15, and a mold-taking platform 16 as in Embodiment 1. Along the film conveying direction, the film pulling mechanism 15 is located behind the cutter 2. The film pulling mechanism 15 includes a clamping assembly and a horizontal displacement assembly. The clamping assembly is used to clamp the film, and the horizontal displacement assembly is used to drive the clamping assembly to move along the film conveying direction. Along the film conveying direction, the mold-taking platform 16 is located behind the cutter 2. The upper surface of the mold-taking platform 16 has a suction cup, which is connected to a negative pressure adsorption device. Both the clamping assembly and the mold-taking platform 16 are commonly used devices in the art, and their detailed structures and working principles will not be described in detail in this embodiment.

[0033] In this embodiment, the mold-taking platform 16 is fixedly connected to the displacement driving component, which is used to drive the mold-taking platform 16 to move horizontally and / or rise and fall.

[0034] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0035] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A cutting and pressing mechanism, characterized in that, include: A cutter holder, which is connected to the lifting end of a vertical lifting mechanism, and a cutting blade is fixed on the cutter holder; And a film pressing frame, in the film conveying direction, one end of the film pressing frame is fixedly connected to the knife holder, and the other end is equipped with a pressure strip, which is arranged parallel above the mold taking platform. The pressure strip is arranged along the film conveying direction and is used to flatten the cut film on the mold taking platform.

2. The cutting and pressing mechanism according to claim 1, characterized in that, The pressing frame includes: In the direction of diaphragm conveying, one end of the first mounting plate is fixedly connected to the knife holder, and the other end is vertically connected to a mounting rod; the mounting rod is slidably arranged vertically; the pressure strip is fixed to the bottom of the mounting rod. A compression spring is sleeved on the mounting rod, with its bottom end abutting against the pressure bar and its top end abutting against the first mounting plate. And an anti-detachment block, which is fixed to the top of the mounting rod to prevent the mounting rod from falling off the first mounting plate.

3. The cutting and pressing mechanism according to claim 2, characterized in that, It also includes a second mounting plate fixed to the first mounting plate, the second mounting plate having a through hole, and a guide sleeve fixed to the second mounting plate, the cylindrical guide cavity of the guide sleeve being coaxially arranged with the through hole; the mounting rod passing through the through hole and the guide sleeve, the top end of the compression spring abutting against the bottom end of the guide sleeve; and the anti-detachment block located above the through hole.

4. The cutting and pressing mechanism according to claim 3, characterized in that, Along the conveying direction of the diaphragm, the first mounting plate is provided with a first strip-shaped hole, and the second mounting plate is connected to the first mounting plate by bolts passing through the first strip-shaped hole.

5. The cutting and pressing mechanism according to claim 4, characterized in that, It also includes a third mounting plate fixed to the bottom end of the mounting rod, which is perpendicular to the direction of the diaphragm conveying in the horizontal plane. The third mounting plate is provided with a second strip hole, and the third mounting plate is connected to the second mounting plate by bolts passing through the second strip hole.

6. The cutting and pressing mechanism according to claim 1, characterized in that, At least two pressure strips are provided at intervals along a direction perpendicular to the conveying direction of the diaphragm in a horizontal plane.

7. The cutting and pressing mechanism according to claim 6, characterized in that, A rubber strip is provided on the lower surface of the pressure strip.

8. The cutting and pressing mechanism according to claim 1, characterized in that, The vertical lifting mechanism includes a cylinder, the output end of which is connected to the tool holder for driving the tool holder to move vertically. The tool holder has an elastic reset mechanism so that the tool holder can reset after the force is released from the cylinder.

9. A cutting device, characterized in that, include: The cutting and pressing mechanism as described in any one of claims 1 to 8; A film-pulling mechanism is located behind the cutter along the film conveying direction. The film-pulling mechanism includes a clamping mold assembly and a horizontal displacement assembly. The clamping mold assembly is used to clamp the film, and the horizontal displacement assembly is used to drive the clamping mold assembly to move along the film conveying direction. And a mold-taking platform, along the conveying direction of the membrane, the mold-taking platform is located behind the cutter, the upper surface of the mold-taking platform has a suction cup, the suction cup is connected to a negative pressure adsorption device.

10. The cutting device according to claim 9, characterized in that, The mold-taking platform is fixedly connected to the displacement driving component, which is used to drive the mold-taking platform to move horizontally and / or rise and fall.

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