Adjustable PVC thermal shrinkage film slitting device
By introducing an adjustable cutter position design into the heat shrink film slitting device, the problem that the existing devices cannot adjust the slitting width is solved, the production demand for products of different specifications is achieved, and the stability of slitting work is improved.
Patent Information
- Application Number
- CN202421728770.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing heat shrink film slitting devices cannot adjust the slitting width and cannot meet the production needs of products of different specifications.
By introducing a fit of the second sliding sleeve, groove, first clamp and second clamp in the slitting device, the position of the cutting blade is allowed to be adjusted, thereby changing the slitting width.
The change in the slitting specification of PVC membrane is achieved, and the stability after cutting tool position adjustment is improved through the design of the clamping block.
Smart Images
Figure CN222958699U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat shrinkable film production, in particular to an adjustable PVC heat shrinkable film slitting device. Background Technique
[0002] PVC heat shrinkable film has the advantages of high transparency, good gloss and high shrinkage rate, so it is widely used in the outer packaging of various commodities such as food, medicine, electronic appliances, daily necessities, handicrafts, plastic hardware, etc.
[0003] The lengths and widths of the heat shrinkable films corresponding to different product specifications are also different. Therefore, a slitting device is needed to slit the produced heat shrinkable films. In the existing heat shrinkable film slitting devices, such as an adjustable PVC heat shrinkable film slitting device disclosed in patent CN217669596U, it winds the PVC film through the cooperation of a bearing and a winding wheel. When the PVC film needs to be slit, the PVC film is pulled out against the slitting plate, and then through the cooperation of a compression spring and a supporting plate during operation, the PVC film is closely contacted with the slitting knife. Then the electric push rod is operated, and through the operation of the electric push rod, the slitting rod and the slitting knife slide inside the slitting groove, and the PVC film is slit by the slitting knife.
[0004] Although the above slitting device improves the neatness of slitting the PVC film, its slitting knife is fixedly connected to the slitting rod, and the slitting rod can only reciprocate in one direction and cannot adjust its position. Therefore, the slitting width of the PVC film cannot be changed, and the production requirements of different specifications of products cannot be met. Therefore, it needs to be improved. Content of the Utility Model
[0005] To solve the above problems, the utility model provides an adjustable PVC heat shrinkable film slitting device, which includes a workbench. Both ends of the top of the workbench are fixedly connected with support frames. The middle position of the top wall of the support frame is fixedly connected with a cylinder. The telescopic end of the cylinder is fixedly connected with a first support plate. The middle position of the bottom of the first support plate is fixedly connected with a connecting rod. The bottom end of the connecting rod is fixedly connected with a support rod. A second sliding sleeve is arranged on the outer side wall of the support rod. The bottom end of the second sliding sleeve is fixedly connected with a cutting knife. By adjusting the position of the second sliding sleeve on the support rod, the position of the cutting knife can be adjusted, and thus the slitting width can be changed.
[0006] Preferably, a groove is opened inside the second sliding sleeve. The middle positions on both sides of the outer wall of the support rod are fixedly connected with first clamping blocks. Both sides of the inner wall of the groove are fixedly connected with second clamping blocks. The second clamping blocks and the first clamping blocks are clamped with each other.
[0007] Preferably, both ends of the bottom of the first support plate are fixedly connected with sliding rods, the bottom ends of the sliding rods are provided with fixed frames, the interior of the fixed frames is of a hollow structure, the bottom ends of the fixed frames are fixedly connected with second support plates, and both ends of the bottom of the second support plates are fixedly connected with limiting plates.
[0008] Preferably, both ends of the second support plate are fixedly connected with first sliding sleeves, and the first sliding sleeves are slidably connected with the support frame.
[0009] Preferably, a spring is arranged inside the fixed frame, one end of the sliding rod penetrates through one side of the inner wall of the fixed frame, one end of the spring is fixedly connected with the outer side wall of the sliding rod, and the other end of the spring is fixedly connected with the inner side wall of the fixed frame.
[0010] Preferably, a through hole for the support rod and the cutting knife to pass through is formed in the middle position inside the second support plate.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] Through the mutual cooperation among the second sliding sleeve, the groove, the first clamping block and the second clamping block, the utility model facilitates the adjustment of the position of the cutting knife, realizes the change of the slitting specification of the PVC film, and realizes the fixation after the position adjustment of the cutting knife through the clamping between the first clamping block and the second clamping block, thereby improving the stability of the slitting work. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 is Figure 1 a partial enlarged structural view of part A in
[0015] Figure 3 is a schematic diagram of the internal structure of the fixed frame of the utility model.
[0016] In the figure: 1, workbench; 2, limiting plate; 3, cutting knife; 4, through hole; 5, first sliding sleeve; 6, first support plate; 7, support frame; 8, support rod; 9, air cylinder; 10, connecting rod; 11, sliding rod; 12, fixed frame; 13, second support plate; 14, second sliding sleeve; 15, groove; 16, first clamping block; 17, second clamping block; 18, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1-3 As shown in the figure, the adjustable PVC heat-shrinkable film slitting device in this embodiment includes a workbench 1. Both ends of the top of the workbench 1 are fixedly connected with support frames 7, and the bottoms of the support frames 7 are fixed to the workbench 1 by bolts; a cylinder 9 is fixedly connected to the middle position of the top wall of the support frame 7, and the telescopic end of the cylinder 9 is fixedly connected with a first support plate 6. Both ends of the bottom of the first support plate 6 are fixedly connected with sliding rods 11, and a connecting rod 10 is fixedly connected to the middle position of the bottom of the first support plate 6. The bottom end of the connecting rod 10 is fixedly connected with a support rod 8. A second sliding sleeve 14 is arranged on the outer side wall of the support rod 8, and a cutting knife 3 is fixedly connected to the bottom end of the second sliding sleeve 14.
[0019] A fixed frame 12 is arranged at the bottom end of the sliding rod 11. The inside of the fixed frame 12 is a hollow structure, and the sliding rod 11 is slidably connected with the fixed frame 12; a spring 18 is arranged inside the fixed frame 12. The bottom end of the fixed frame 12 is fixedly connected with a second support plate 13. A through hole 4 is opened at the middle position inside the second support plate 13. Both ends of the bottom of the second support plate 13 are fixedly connected with limiting plates 2.
[0020] Both ends of the second support plate 13 are fixedly connected with first sliding sleeves 5. The first sliding sleeves 5 are slidably connected with the support frames 7. One end of the sliding rod 11 penetrates through one side of the inner wall of the fixed frame 12. One end of the spring 18 is fixedly connected with the outer side wall of the sliding rod 11, and the other end of the spring 18 is fixedly connected with the inner side wall of the fixed frame 12.
[0021] When slitting the PVC film, first drive the PVC film to pass on the workbench 1 through a traction device, and then drive the first support plate 6 to move downward through the telescopic end of the cylinder 9, and successively drive the sliding rod 11, the connecting rod 10, the support rod 8, the second support plate 13 and the limiting plate 2 to move downward through the first support plate 6. And through the downward movement of the second support plate 13, drive the first sliding sleeve 5 to slide downward on the outer surface of the support frame 7 until the bottom end of the limiting plate 2 abuts against the top end of the workbench 1, thereby realizing the limitation of both sides of the PVC film and preventing it from running off.
[0022] Subsequently, continue to push the first support plate 6 downward. When the first support plate 6 moves downward, it simultaneously drives the slide bar 11, the connecting rod 10, the support rod 8, and the cutter 3 to move downward. When the slide bar 11 slides downward inside the fixed frame 12, it squeezes the spring 18 until the bottom end of the cutter 3 abuts against the PVC film and cuts it as the PVC film is pulled.
[0023] Through the same cylinder 9, this cutting device realizes two sets of actions, namely the limiting and cutting of the PVC film, which not only simplifies the structure but also reduces energy consumption.
[0024] A groove 15 is formed inside the second sliding sleeve 14. At the middle positions on both sides of the outer wall of the support rod 8, a first clamping block 16 is fixedly connected. On both sides of the inner wall of the groove 15, a second clamping block 17 is fixedly connected. The second clamping block 17 and the first clamping block 16 are clamped with each other. When moving the position of the cutter 3, manually pull the second sliding sleeve 14 to the left or right, so that the second sliding sleeve 14 drives the cutter 3 to move synchronously on the outer surface of the support rod 8. When the second sliding sleeve 14 moves, it drives the second clamping block 17 to move until the cutter 3 is moved to the required position. By adjusting the position of the cutter 3, the cutting of different positions of the PVC film is realized, thereby changing the finished product specifications of the PVC film; and through the clamping between the second clamping block 17 and the first clamping block 16, the fixation of the cutter 3 and the second sliding sleeve 14 is realized, improving the stability after the position adjustment of the cutter 3.
[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An adjustable PVC heat shrink film slitting device, characterized in that: The invention comprises a workbench (1), wherein both ends of the top of the workbench (1) are fixedly connected to a support frame (7), a cylinder (9) is fixedly connected to the middle position of the top wall of the support frame (7), a telescopic end of the cylinder (9) is fixedly connected to a first support plate (6), a connecting rod (10) is fixedly connected to the middle position of the bottom of the first support plate (6), the bottom end of the connecting rod (10) is fixedly connected to a support rod (8), a second sliding sleeve (14) is provided on the outer side wall of the support rod (8), a cutter (3) is fixedly connected to the bottom end of the second sliding sleeve (14), and the position of the cutter (3) can be adjusted by adjusting the position of the second sliding sleeve (14) on the support rod (8), thereby changing the slitting width.
2. The adjustable PVC heat shrink film slitting device according to claim 1, characterized in that: A groove (15) is provided inside the second sliding sleeve (14); a first clamping block (16) is fixedly connected to the middle position of both sides of the outer wall of the support rod (8); and second clamping blocks (17) are fixedly connected to both sides of the inner wall of the groove (15); the second clamping block (17) and the first clamping block (16) are clamped to each other.
3. The adjustable PVC heat shrink film slitting device according to claim 1, characterized in that: Both ends of the bottom of the first support plate (6) are fixedly connected to a sliding rod (11), a fixing frame (12) is provided at the bottom end of the sliding rod (11), the interior of the fixing frame (12) is a hollow structure, the bottom end of the fixing frame (12) is fixedly connected to a second support plate (13), and both ends of the bottom of the second support plate (13) are fixedly connected to a limiting plate (2).
4. The adjustable PVC heat shrink film slitting device according to claim 3, characterized in that: Both ends of the second support plate (13) are fixedly connected to a first sliding sleeve (5), and the first sliding sleeve (5) is slidably connected to the support frame (7).
5. The adjustable PVC heat shrink film slitting device according to claim 3, characterized in that: A spring (18) is arranged inside the fixed frame (12), one end of the slide rod (11) passes through one side of the inner wall of the fixed frame (12), one end of the spring (18) is fixedly connected to the outer wall of the slide rod (11), and the other end of the spring (18) is fixedly connected to the inner wall of the fixed frame (12).
6. The adjustable PVC heat shrink film slitting device according to claim 3, characterized in that: A through hole (4) is provided in the middle of the second support plate (13) for the support rod (8) and the cutter (3) to pass through.