A die cutting apparatus for die cutting a protective film

Abstract

The utility model belongs to the field of protection film die cutting technology, and concretely is a kind of die cutting device for die cutting protection film, including support frame, the support frame bottom four corners are uniformly connected with support block, the support frame inside upper surface is fixedly connected with base, the base top is provided with the front and rear through -type placement slot, the placement slot inside is provided with clamping assembly, the support frame top center is fixedly installed with hydraulic cylinder;The utility model is rotated extrusion screw rod to make extrusion screw rod rotate and move in screw hole inside, and the rotation of extrusion screw rod drives piston one to slide extrusion gas in L type air groove, then extrude piston two, and piston two is extruded to slide extrusion connecting rod and sliding block, and make the sliding block drive L type mounting plate to remove installation slot, so that four L type mounting plate can remove installation slot simultaneously to die cutting knife disengagement limit installation, and it is convenient to die cutting knife disassembly overhaul and replacement.

Description

Technical Field

[0001] This utility model relates to the field of protective film die-cutting technology, specifically a die-cutting device for die-cutting protective films. Background Technology

[0002] Protective films can be categorized by their use, such as digital product protective films, automotive protective films, household protective films, and food preservation protective films. Functionally, protective films are used to coat the objects they wish to protect. In terms of application, they can be used on the surfaces of metal products, coated metal products, plastic products, automotive products, electronic products, signage products, profile products, and other product surfaces. Protective films are a common industrial consumable. Furthermore, the processing and molding of protective films requires die-cutting equipment.

[0003] However, most existing die-cutting devices for die-cutting protective films have die-cutting blades for die-cutting specific shapes that are inconvenient to disassemble, repair, and replace, thus making the device unable to meet more usage needs and not practical enough. Therefore, a die-cutting device for die-cutting protective films is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problem that most existing die-cutting devices for die-cutting protective films are inconvenient to disassemble, repair, and replace when using die-cutting blades for die-cutting specific shapes, thus making the device unable to meet more usage needs and not practical enough, this utility model proposes a die-cutting device for die-cutting protective films.

[0005] The technical solution adopted by this utility model to solve its technical problem is: the die-cutting device for die-cutting protective film according to this utility model includes a support frame, and support blocks are fixedly connected to the four corners of the bottom of the support frame; A base is fixedly connected to the upper surface inside the support frame. A through-type placement slot is opened on the top of the base. A clamping component is installed inside the placement slot. A hydraulic cylinder is fixedly installed at the center of the top of the support frame. The output end of the hydraulic cylinder extends into the support frame and is fixedly connected to a die-cutting seat. A die-cutting blade is installed at the bottom of the die-cutting seat through a disassembly component.

[0006] Preferably, the disassembly assembly includes an inner groove at the center of the die-cutting base. Ventilation holes are provided on the left and right sides, front and rear of the inner groove. A through slot is provided on the lower surface of the vent hole. A slider is slidably connected inside the vent hole. A spring is fixedly connected between the slider and the vent hole. An L-shaped mounting plate is fixedly connected to the outer surface of the slider. The bottom of the L-shaped mounting plate passes through the through slot and is slidably connected to the through slot. Mounting slots are provided on the upper surface of the left and right sides and front and rear surfaces of the die-cutting blade. One side of the L-shaped mounting plate is inserted into the mounting slot.

[0007] Preferably, a second piston is slidably connected inside the vent hole, and a connecting rod is fixedly connected between the second piston and the slider. An L-shaped vent groove is formed on the upper surface inside the inner groove. A through-hole is formed on one side of the L-shaped vent groove. A compression screw is threadedly connected inside the threaded hole. One end of the compression screw extends into the L-shaped vent groove and is fixedly connected to the first piston.

[0008] Preferably, the clamping assembly includes two fixing plates that are respectively fixedly connected to the front and rear of the placement groove. A threaded rod passes through the inside of the fixing plate and is threadedly connected to the threaded rod. A clamping plate is rotatably installed at the bottom end of the threaded rod, and the clamping plate is slidably connected to the placement groove.

[0009] Preferably, a damper is fixedly connected between the slider and the vent hole, the spring is sleeved on the outer surface of the damper, a throttle is fixedly connected to the top of the threaded rod, and a handle plate is fixedly connected to the other end of the extrusion screw.

[0010] Preferably, guide rods are fixedly connected to the front and rear of the left and right sides of the top of the base, the top of the guide rods penetrates through the die-cutting base, and the guide rods are slidably connected to the die-cutting base.

[0011] Preferably, handles are fixedly connected to the lower part of both the left and right sides of the support frame.

[0012] The advantages of this utility model are: 1. This utility model utilizes a rotating extrusion screw to move within a threaded hole. This rotation causes piston one to slide and compress gas within an L-shaped venting groove. Since piston one and piston two are sealed and slidingly connected, the gas from piston one's sliding compression allows it to pass through the inner groove into the venting hole, where it then compresses piston two. Piston two, after being compressed, slides and compresses the connecting rod and slider, causing the slider to move the L-shaped mounting plate out of the mounting groove. This allows all four L-shaped mounting plates to simultaneously move out of the mounting groove, detaching the die-cutting blade from its limiting installation. This facilitates the disassembly, maintenance, and replacement of the die-cutting blade, and allows the device to meet a wider range of application needs.

[0013] 2. This utility model uses a rotating threaded rod to move a clamping plate that is rotatably connected to it. After the clamping plate moves, it can squeeze and clamp the protective film that needs to be die-cut inside the placement groove, and prevent the protective film from shifting during die-cutting, thus affecting the die-cutting effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure in Example 1; Figure 2 This is a front view structural diagram of Embodiment 1; Figure 3 This is a partial cross-sectional view of the structure in Example 1; Figure 4 As in Example 1 Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the handle structure in Embodiment 2.

[0016] In the diagram: 1. Support frame; 2. Base; 3. Guide rod; 4. Die-cutting seat; 5. Hydraulic cylinder; 6. Die-cutting blade; 7. Placement slot; 8. Threaded rod; 9. Fixing plate; 10. Clamping plate; 11. L-shaped mounting plate; 12. Extrusion screw; 13. L-shaped venting slot; 14. Piston one; 15. Inner groove; 16. Vent hole; 17. Piston two; 18. Connecting rod; 19. Slider; 20. Spring; 21. Damper; 22. Through groove; 23. Mounting slot; 24. Handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 Please see Figure 1-4 As shown, a die-cutting device for die-cutting protective film includes a support frame 1, wherein support blocks are fixedly connected to the four corners of the bottom of the support frame 1; A base 2 is fixedly connected to the upper surface of the support frame 1. A through-type placement groove 7 is opened on the top of the base 2. A clamping assembly is installed inside the placement groove 7. A hydraulic cylinder 5 is fixedly installed at the center of the top of the support frame 1. The output end of the hydraulic cylinder 5 extends into the support frame 1 and is fixedly connected to a die-cutting seat 4. A die-cutting blade 6 is installed at the bottom of the die-cutting seat 4 through a disassembly assembly. During operation, the support block at the bottom of the support frame 1 is first aligned with a flat placement surface to stabilize the device. After the device is stabilized, the protective film to be die-cut is placed inside the placement groove 7 and stably clamped by the clamping assembly. Then, the hydraulic cylinder 5 drives the die-cutting seat 4 and the die-cutting blade 6 to move. The die-cutting blade 6 moves into the placement groove 7 to die-cut the stabilized protective film. The die-cutting blade 6 is installed to the die-cutting seat 4 through the disassembly assembly, which facilitates the disassembly, inspection, and replacement of the die-cutting blade 6. This allows the device to meet more usage needs and is highly practical.

[0019] The disassembly assembly includes an inner groove 15 located at the center of the die-cutting base 4. Ventilation holes 16 are provided on the left and right sides, front and rear of the inner groove 15. A through-hole 22 is formed on the lower surface of each ventilation hole 16. A slider 19 is slidably connected inside the ventilation hole 16. A spring 20 is fixedly connected between the slider 19 and the ventilation hole 16. An L-shaped mounting plate 11 is fixedly connected to the outer surface of the slider 19. The bottom of the L-shaped mounting plate 11 passes through the through-hole 22 and is slidably connected to it. The die-cutting blade 6 is located on the left... Mounting slots 23 are provided on the upper part of the right sides and the front and rear surfaces. One side of the L-shaped mounting plate 11 is inserted into the mounting slot 23. During operation, the movement of the L-shaped mounting plate 11 drives the slider 19 to slide and compress the spring 20, so that the L-shaped mounting plate 11 can be moved out of the mounting slot 23. The die-cutting blade 6 can be disassembled, inspected and replaced. The limiting force of the spring 20 allows the L-shaped mounting plate 11 to be inserted into the mounting slot 23 to limit the installation of the die-cutting blade 6. Then, the rebound force of the spring 20 also facilitates the reset movement of the L-shaped mounting plate 11.

[0020] A piston 17 is slidably connected inside the vent 16. A connecting rod 18 is fixedly connected between the piston 17 and the slider 19. An L-shaped vent groove 13 is formed on the upper surface of the inner groove 15. A through-hole threaded hole is formed on one side of the L-shaped vent groove 13. A compression screw 12 is threadedly connected inside the threaded hole. One end of the compression screw 12 extends into the L-shaped vent groove 13 and is fixedly connected to a piston 14. During operation, rotating the compression screw 12 causes it to rotate and move inside the threaded hole. The rotation and movement of the compression screw 12 drives the piston 14 to slide and compress the gas inside the L-shaped vent groove 13. Since the pistons 14 and 15 are sealed and slidably connected, the sliding compression of the gas by the piston 14 allows the gas to enter through the inner groove 15. The piston 17 is then squeezed into the vent hole 16. After being squeezed, the piston 17 slides and squeezes the connecting rod 18 and the slider 19, causing the slider 19 to move the L-shaped mounting plate 11 out of the mounting groove 23. This allows all four L-shaped mounting plates 11 to move out of the mounting groove 23 simultaneously, thus disengaging the die-cutting blade 6 from its limit installation. This facilitates the disassembly, maintenance, and replacement of the die-cutting blade 6, and allows the device to meet more usage requirements. After maintenance or replacement, the mounting groove 23 of the die-cutting blade 6 is aligned with the L-shaped mounting plate 11, and the squeezing screw 12 is rotated to reset the piston 14. The spring 20's rebound force allows the L-shaped mounting plate 11 to reset and move into the mounting groove 23 to install the die-cutting blade 6. The piston 17, slider 19, and connecting rod 18 will also move and reset.

[0021] The clamping assembly includes two fixed plates 9, which are respectively fixedly connected to the front and rear of the placement groove 7. A threaded rod 8 passes through the fixed plate 9 and is threadedly connected to the threaded rod 8. A clamping plate 10 is rotatably installed at the bottom end of the threaded rod 8. The clamping plate 10 is slidably connected to the placement groove 7. During operation, rotating the threaded rod 8 causes the threaded rod 8 to drive the clamping plate 10, which is rotatably connected to it, to move. After the clamping plate 10 moves, it can squeeze and clamp the protective film that needs to be die-cut inside the placement groove 7, and prevent the protective film from shifting during die-cutting, which would affect the die-cutting effect.

[0022] A damper 21 is fixedly connected between the slider 19 and the vent 16. The spring 20 is sleeved on the outer surface of the damper 21. A handle is fixedly connected to the top of the threaded rod 8, and a handle plate is fixedly connected to the other end of the extrusion screw 12. During operation, the damper 21 is located inside the spring 20 to prevent the spring 20 from vibrating and causing the die-cutting blade 6 to shake during die-cutting when the L-shaped mounting plate 11 is installed on it, thus avoiding affecting the use of the device. At the same time, the handle facilitates the rotation of the threaded rod 8, and the handle plate facilitates the rotation of the extrusion screw 12.

[0023] Guide rods 3 are fixedly connected to the front and rear of the left and right sides of the top of the base 2. The top of the guide rods 3 passes through the die-cutting seat 4 and the guide rods 3 are slidably connected to the die-cutting seat 4. During operation, the guide rods 3 facilitate the movement of the die-cutting seat 4 and limit its movement, making the movement of the die-cutting blade 6 more stable during die-cutting and resulting in a better die-cutting effect.

[0024] Example 2 Please see Figure 5 As shown in the first embodiment, as another implementation of this utility model, handles 24 are fixedly connected to the lower sides of the left and right sides of the support frame 1; during operation, the handles 24 facilitate the handling and repositioning of the support frame 1, and also facilitate the handling of this device.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A die-cutting device for die-cutting protective film, comprising a support frame (1), wherein support blocks are fixedly connected to the four corners of the bottom of the support frame (1); characterized in that The support frame (1) has a base (2) fixedly connected to its inner upper surface. The base (2) has a front-to-back through placement groove (7) on its top. The placement groove (7) has a clamping component inside. The support frame (1) has a hydraulic cylinder (5) fixedly installed at its top center. The output end of the hydraulic cylinder (5) extends into the support frame (1) and is fixedly connected to a die-cutting seat (4). The die-cutting seat (4) has a die-cutting blade (6) installed at its bottom through a disassembly component.

2. The die cutting apparatus for die cutting a protective film according to claim 1, characterized by: The disassembly assembly includes an inner groove (15) located at the center of the die-cutting base (4). Ventilation holes (16) are provided on the left and right sides, front and rear of the inner groove (15). A through groove (22) is provided on the lower surface of the vent (16). A slider (19) is slidably connected inside the vent (16). A spring (20) is fixedly connected between the slider (19) and the vent (16). An L-shaped mounting plate (11) is fixedly connected to the outer surface of the slider (19). The bottom of the L-shaped mounting plate (11) passes through the through groove (22) and is slidably connected to the through groove (22). Mounting slots (23) are provided on the upper surface of the left and right sides and the front and rear surfaces of the die-cutting blade (6). One side of the L-shaped mounting plate (11) is inserted into the mounting slot (23).

3. The die cutting apparatus for die cutting a protective film according to claim 2, wherein: A piston (17) is slidably connected inside the vent (16). A connecting rod (18) is fixedly connected between the piston (17) and the slider (19). An L-shaped vent groove (13) is opened on the upper surface of the inner groove (15). A through-type threaded hole is opened on one side of the L-shaped vent groove (13). A compression screw (12) is threaded inside the threaded hole. One end of the compression screw (12) extends into the L-shaped vent groove (13) and is fixedly connected to a piston (14).

4. The die cutting apparatus for die cutting a protective film according to claim 3, wherein: The clamping assembly includes two fixing plates (9) that are fixedly connected to the front and rear of the placement groove (7) respectively. A threaded rod (8) passes through the inside of the fixing plate (9) and is threadedly connected to the threaded rod (8). A clamping plate (10) is rotatably installed at the bottom end of the threaded rod (8). The clamping plate (10) is slidably connected to the placement groove (7).

5. The die cutting apparatus for die cutting a protective film according to claim 4, wherein: A damper (21) is fixedly connected between the slider (19) and the vent (16). The spring (20) is sleeved on the outer surface of the damper (21). A throttle is fixedly connected to the top of the threaded rod (8). A handle plate is fixedly connected to the other end of the extrusion screw (12).

6. The die cutting apparatus for die cutting a protective film according to claim 1, wherein: Guide rods (3) are fixedly connected to the front and rear sides of the top left and right sides of the base (2). The top of the guide rods (3) passes through the die-cutting seat (4), and the guide rods (3) and the die-cutting seat (4) are slidably connected.

7. The die cutting apparatus for die cutting a protective film according to claim 1, wherein: The support frame (1) has handles (24) fixedly connected to the lower left and right sides.

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