PE film slitting and winding equipment

Abstract

This utility model provides a PE film slitting and winding device, belonging to the technical field of planing devices. It includes a fixed plate and a winding roller and a toothed belt pulley mounted on the fixed plate. The positioning sleeve, in conjunction with a hydraulic rod, allows for flexible and rapid adjustment of the winding roller's height. Simultaneously, the insert block at the upper end of the winding roller, combined with the slot on the toothed belt pulley, allows for quick and easy fixing of the winding roller. Furthermore, the mounting groove on the fixed plate enables rapid assembly and disassembly of the winding roller, facilitating quick loading and unloading of materials, saving downtime and improving overall slitting efficiency. During the upward lifting of the winding roller by the positioning sleeve, air inside the first piston chamber is compressed and flows into the second piston chamber on one side through an air hole, causing the lifting baffle to slide upwards. This further protects the outer side of the rotating shaft, preventing the lower end of the winding roller from tipping over during operation and improving the stability of the entire process.

Description

Technical Field

[0001] This utility model relates to the field of pressure cutting device technology, and more specifically, to a PE film slitting and winding device. Background Technology

[0002] PE plastic film, or polyethylene film, refers to film produced from PE granules. It is a relatively common type of film with moisture resistance and low moisture permeability. In the processing of PE plastic film, a slitting machine is often used to cut the film laterally to a specified width.

[0003] In existing technologies, during the PE film slitting and rewinding process, after a roll of PE film is rewound, operators need to spend a significant amount of time and effort disassembling and replacing it. This increases the disassembly and assembly time, significantly extending equipment downtime and reducing the effective working time of the equipment, thereby affecting overall production efficiency. How to solve these problems with a new PE film slitting and rewinding device has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a PE film slitting and winding device, which aims to solve the problem that operators need to spend a lot of time and energy to disassemble and replace the winding rollers, reducing the effective working time of the equipment and thus affecting the overall production efficiency.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a PE film slitting and winding device, including a fixed plate and a winding roller and a toothed belt pulley disposed on the fixed plate. Multiple support legs are installed at the lower end of the fixed plate. An unwinding mechanism is fixedly connected to the upper outer wall of the fixed plate. A fixed frame is fixedly connected to the side of the fixed plate near the unwinding mechanism. A cutter is fixedly connected to the lower inner wall of the fixed frame. A mounting frame is fixedly connected to the outer wall of the fixed plate near the fixed frame. A motor is installed at the upper end of the mounting frame. Symmetrical mounting grooves are formed on one outer wall of the fixed plate. A recess is formed on the inner wall of the mounting groove. A positioning sleeve is installed on the inner wall of the recess. Symmetrical hydraulic rods are installed at the bottom of the fixed plate.

[0007] The lower ends of the two take-up rollers are equipped with rotating shafts, the outer wall of the rotating shafts is rotatably connected to the inner wall of the positioning sleeve, a retaining ring is fixedly connected to the outer wall of the rotating shafts, and an insert block is installed at the upper end of the take-up rollers.

[0008] Two toothed pulleys are symmetrically mounted on the lower outer wall of the fixed frame. The lower end of each toothed pulley has a slot for insertion into the insert block. The upper outer wall of each toothed pulley is rotatably connected to the inner wall of the fixed frame. A toothed belt is installed between the toothed pulleys.

[0009] Preferably, the outer wall of the positioning sleeve and the inner wall of the groove are slidably connected, the output end of the hydraulic rod is fixedly connected to the bottom of the positioning sleeve, and the outer wall of the output end of the hydraulic rod is slidably connected to the inner wall of the fixing plate.

[0010] Preferably, the motor and one of the toothed pulleys are fixedly connected to the drive shaft, and the toothed pulley and the toothed belt are connected by a transmission.

[0011] Preferably, the mounting groove is a groove with a 90-degree bend, and a limiting block is fixedly connected to the inner wall of the groove. The limiting block is a 90-degree annular block.

[0012] Preferably, the upper end of the positioning sleeve is provided with a first piston chamber and a second piston chamber, wherein the first piston chamber is located directly below the limiting block, the inner wall of the first piston chamber is slidably connected with a sealing sleeve, and an air hole is provided between the first piston chamber and the second piston chamber.

[0013] Preferably, a first spring is fixedly connected between the sealing sleeve and the first piston chamber, and a baffle is slidably connected to the inner wall of the second piston chamber. A second spring is fixedly connected to the inner wall of the baffle and to the inner wall of the second piston chamber.

[0014] The beneficial effects of this utility model are:

[0015] The positioning sleeve, in conjunction with the hydraulic rod, allows for flexible and rapid adjustment of the take-up roller's height. Simultaneously, the insert block at the upper end of the take-up roller, combined with the slot on the toothed pulley, enables quick and easy fixing of the take-up roller. Furthermore, the mounting groove on the fixing plate facilitates rapid assembly and disassembly of the take-up roller, allowing for quick loading and unloading of materials, saving downtime and improving overall slitting efficiency. As the positioning sleeve lifts the take-up roller, air inside the first piston chamber is compressed and flows through the air hole into the second piston chamber on one side, causing the lifting baffle to slide upwards. This further protects the outer side of the rotating shaft, preventing the lower end of the take-up roller from tipping over during operation and improving the overall stability of the process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a PE film slitting and winding device provided by an embodiment of this utility model;

[0018] Figure 2 This is a half-sectional view of the structure of a PE film slitting and winding device provided by an embodiment of this utility model;

[0019] Figure 3 This utility model provides a structure for a PE film slitting and winding device. Figure 2 Enlarged view of the structure of region A in the middle;

[0020] Figure 4 This is a partial half-sectional view of a PE film slitting and winding device provided in an embodiment of this utility model;

[0021] Figure 5 This utility model provides a PE film slitting and winding device. Figure 4 Enlarged view of the structure of region B in the middle;

[0022] Figure 6 This is a partial structural cross-sectional view of a PE film slitting and winding device provided in this embodiment of the utility model;

[0023] Figure 7 This utility model provides a PE film slitting and winding device. Figure 6 Enlarged view of the structure of region C in the middle;

[0024] Figure 8 This is a schematic diagram of the structure of the rotating shaft of a PE film slitting and winding device provided in this embodiment of the utility model;

[0025] Figure 9 This utility model provides a PE film slitting and winding device. Figure 8 Enlarged view of the structure of region C in the middle;

[0026] Figure 10 This is a cross-sectional view of the shaft structure of a PE film slitting and winding device provided in this embodiment of the utility model.

[0027] In the diagram: 1. Fixed plate; 11. Support leg; 12. Unwinding mechanism; 13. Fixed frame; 14. Cutter; 15. Mounting frame; 16. Motor; 17. Mounting slot; 18. Groove; 19. Limiting block; 2. Rewinding roller; 21. Rotating shaft; 22. Retaining ring; 23. Insert block; 3. Hydraulic rod; 4. Positioning sleeve; 41. First piston chamber; 42. Second piston chamber; 421. Air hole; 43. Sealing sleeve; 431. First spring; 44. Baffle; 441. Second spring; 5. Toothed pulley; 51. Slot; 52. Toothed belt. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Example, refer to Figures 1-10 A PE film slitting and winding device includes a fixed plate 1 and a winding roller 2 and a toothed belt pulley 5 disposed on the fixed plate 1. Multiple support legs 11 are installed at the lower end of the fixed plate 1. An unwinding mechanism 12 is fixedly connected to the upper outer wall of the fixed plate 1. A fixed frame 13 is fixedly connected to the side of the fixed plate 1 near the unwinding mechanism 12. A cutter 14 is fixedly connected to the lower inner wall of the fixed frame 13. An mounting frame 15 is fixedly connected to the outer wall of the fixed plate 1 near the fixed frame 13. A motor 16 is installed at the upper end of the mounting frame 15. A symmetrical mounting groove 17 is opened on one outer wall of the fixed plate 1. A groove 18 is opened on the inner wall of the mounting groove 17. A positioning sleeve 4 is installed on the inner wall of the groove 18. A symmetrical hydraulic rod 3 is installed at the bottom of the fixed plate 1.

[0030] Two take-up rollers 2 are equipped with a rotating shaft 21 at their lower ends. The outer wall of the rotating shaft 21 is rotatably connected to the inner wall of the positioning sleeve 4. A retaining ring 22 is fixedly connected to the outer wall of the rotating shaft 21. An insert block 23 is installed at the upper end of the take-up roller 2.

[0031] Two toothed pulleys 5 are symmetrically installed on the lower outer wall of the fixed frame 13. The lower end of the toothed pulley 5 is provided with a slot 51 for insertion into the insert block 23. The upper outer wall of the toothed pulley 5 is rotatably connected to the inner wall of the fixed frame 13. A toothed belt 52 is installed between the toothed pulleys 5.

[0032] Furthermore; the outer wall of the positioning sleeve 4 and the inner wall of the groove 18 are slidably connected, the output end of the hydraulic rod 3 and the bottom of the positioning sleeve 4 are fixedly connected, the outer wall of the output end of the hydraulic rod 3 and the inner wall of the fixing plate 1 are slidably connected, the motor 16 and one of the toothed pulleys 5 are fixedly connected, the toothed pulley 5 and the toothed belt 52 are connected by a transmission connection, the mounting groove 17 is a 90-degree bent groove, and the inner wall of the groove 18 is fixedly connected to a limit block 19, which is a 90-degree annular block;

[0033] It should be noted that: before installation of the take-up roller 2, the positioning sleeve 4 is completely housed in the groove 18. When installing the take-up roller 2, insert the lower shaft 21 of the take-up roller 2 into the mounting groove 17 on the side of the fixing plate 1, then push it forward to bring the take-up roller 2 to the groove 18. Under the influence of gravity, the shaft 21 falls into the positioning sleeve 4 below. At this time, the height of the take-up roller 2 also decreases. Then, activate the hydraulic rod 3 to lift the upper take-up roller 2 upwards using the positioning sleeve 4 until the upper insert 23 of the take-up roller 2 is inserted into the slot 51 below the toothed pulley 5. This completes the fixing between the take-up roller 2 and the toothed pulley 5. Then proceed with the PE film feeding... During the slitting process, the film roll on the unwinding mechanism 12 is split in two by the cutter 14. Then, the motor 16 is started to drive the toothed belt pulley 5 to rotate the two take-up rollers 2 to take up the cut PE film. After the take-up is completed, the hydraulic rod 3 is started again to make the positioning sleeve 4 drive the insert 23 and slot 51 on the upper end of the take-up roller 2 to fall off until the retaining ring 22 on the outside of the rotating shaft 21 is placed on the limiting block 19. At this time, the upper side wall of the positioning sleeve 4 is lower than the bottom end of the rotating shaft 21. Then, the take-up roller 2 is slid out through the mounting groove 17, so that the take-up roller 2 can be loaded and unloaded quickly, saving the downtime of the device and improving the overall slitting efficiency.

[0034] Furthermore, the upper end of the positioning sleeve 4 is provided with a first piston cavity 41 and a second piston cavity 42, wherein the first piston cavity 41 is located directly below the limiting block 19, the inner wall of the first piston cavity 41 is slidably connected with a sealing sleeve 43, an air hole 421 is provided between the first piston cavity 41 and the second piston cavity 42, a first spring 431 is fixedly connected between the sealing sleeve 43 and the first piston cavity 41, and a baffle 44 is slidably connected to the inner wall of the second piston cavity 42, and a second spring 441 is fixedly connected to the inner wall of the baffle 44 and the inner wall of the second piston cavity 42.

[0035] It should be noted that during the process of the positioning sleeve 4 lifting the take-up roller 2 upward, the upper end of the sealing sleeve 43 abuts against the lower end of the limiting block 19. During the upward movement of the positioning sleeve 4, the sealing sleeve 43 compresses the first spring 431. At the same time, the air inside the first piston chamber 41 is squeezed through the air hole 421 and flows into the second piston chamber 42 on one side. Meanwhile, it overcomes the action of the second spring 441 and lifts the baffle 44 to slide upward, thereby further protecting the outer side of the rotating shaft 21. This prevents the lower end of the take-up roller 2 from becoming unstable and tipping over during the operation of the device, thus improving the stability of the entire working process.

[0036] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A PE film slitting and winding device, comprising a fixed plate (1) and a winding roller (2) and a toothed belt pulley (5) disposed on the fixed plate (1), characterized in that, The lower end of the fixed plate (1) is equipped with multiple support legs (11). The upper outer wall of the fixed plate (1) is fixedly connected to an unwinding mechanism (12). The side of the fixed plate (1) near the unwinding mechanism (12) is fixedly connected to a fixed frame (13). The lower inner wall of the fixed frame (13) is fixedly connected to a cutter (14). The outer wall of the fixed plate (1) near the fixed frame (13) is fixedly connected to a mounting frame (15). The upper end of the mounting frame (15) is equipped with a motor (16). The outer wall of one side of the fixed plate (1) is provided with symmetrical mounting grooves (17). The inner wall of the mounting groove (17) is provided with a groove (18). The inner wall of the groove (18) is equipped with a positioning sleeve (4). The bottom of the fixed plate (1) is equipped with symmetrical hydraulic rods (3). The lower ends of the two take-up rollers (2) are equipped with a rotating shaft (21), the outer wall of the rotating shaft (21) and the inner wall of the positioning sleeve (4) are rotatably connected, a retaining ring (22) is fixedly connected to the outer wall of the rotating shaft (21), and an insert block (23) is installed at the upper end of the take-up rollers (2). Two toothed pulleys (5) are symmetrically installed on the lower outer wall of the fixed frame (13). The lower end of the toothed pulley (5) is provided with a slot (51) for insertion into the insert block (23). The upper outer wall of the toothed pulley (5) is rotatably connected to the inner wall of the fixed frame (13). A toothed belt (52) is installed between the toothed pulleys (5).

2. The PE film slitting and winding equipment according to claim 1, characterized in that, The outer wall of the positioning sleeve (4) and the inner wall of the groove (18) are slidably connected, the output end of the hydraulic rod (3) and the bottom of the positioning sleeve (4) are fixedly connected, and the outer wall of the output end of the hydraulic rod (3) and the inner wall of the fixing plate (1) are slidably connected.

3. The PE film slitting and winding equipment according to claim 2, characterized in that, The motor (16) and one of the toothed pulleys (5) are fixedly connected to the drive shaft, and the toothed pulley (5) and the toothed belt (52) are connected by transmission.

4. A PE film slitting and winding device according to claim 3, characterized in that, The mounting groove (17) is a groove with a 90-degree bend, and the inner wall of the groove (18) is fixedly connected to a limiting block (19), which is a 90-degree annular block.

5. A PE film slitting and winding device according to claim 1, characterized in that, The upper end of the positioning sleeve (4) is provided with a first piston chamber (41) and a second piston chamber (42), wherein the first piston chamber (41) is located directly below the limiting block (19), the inner wall of the first piston chamber (41) is sealed and slidably connected with a sealing sleeve (43), and an air hole (421) is provided between the first piston chamber (41) and the second piston chamber (42).

6. A PE film slitting and winding device according to claim 5, characterized in that, A first spring (431) is fixedly connected between the sealing sleeve (43) and the first piston chamber (41). A baffle (44) is slidably connected to the inner wall of the second piston chamber (42). A second spring (441) is fixedly connected to the inner wall of the baffle (44) and the inner wall of the second piston chamber (42).

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