Discharging equipment for PET adhesive tape production
By designing an auxiliary structure, the installation and replacement of the feeding shaft in the PET tape production equipment are simplified, solving the problem of difficult disassembly in the existing technology, improving replacement efficiency and equipment stability, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-20
AI Technical Summary
In existing PET tape production equipment, the feeding shaft has tightly packed components that are difficult to disassemble easily. This requires specialized skills and tools, resulting in high maintenance costs, potential equipment damage, and impact on production quality and lifespan.
An auxiliary structure was designed to enable the quick installation and replacement of the feeding shaft by pulling the connecting block and the slider in combination. Components such as anti-slip pads, threaded rings and coil springs are used to improve friction and stability and simplify operation.
It enables quick replacement and fixation of the feeding shaft, improves replacement efficiency, reduces maintenance difficulty, extends equipment life, and ensures production stability.
Smart Images

Figure CN224014945U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PET tape production feeding, and in particular to a feeding device for PET tape production. Background Technology
[0002] In PET tape production, the unwinding equipment (also known as an unwinder or unwinding rack) is a key piece of equipment used to provide and control the supply of substrate (such as PET film). Its main function is to ensure a stable supply of substrate to subsequent processes, such as coating and cutting, during the production process.
[0003] Existing technologies, such as the utility model patent with publication number CN215287344U, disclose a feeding device with an anti-loosening structure for PET tape production. This patent employs a threaded mechanism, a locking mechanism, and a sliding mechanism. The locking mechanism is located on the top left side of the threaded mechanism, and the sliding mechanism is located at the rear middle of the locking mechanism. The sliding mechanism includes: a movable block; a positioning hole located at the middle of the movable block; and a third bolt located at the middle of the positioning hole. In this feeding device for PET tape production with an anti-loosening structure, when the feeding item is changed, the locking block is rotated using a rotating shaft, and then the sliding mechanism is inserted into the slot of the locking mechanism. A second rotation is then used to fix it in place. When it is necessary to adjust the working distance of the movable block, the tightness of the movable block relative to the sliding mechanism can be adjusted by manually rotating and tightening or loosening the third nut and the third bolt, allowing the movable block to move horizontally left and right, preventing slippage of the feeding device during use.
[0004] The inventors discovered in daily use that in some existing material feeding devices, the components requiring replacement of the feeding shaft are tightly integrated or cannot be easily disassembled and replaced. Maintenance personnel need certain professional skills and may need to use specialized tools. This not only increases maintenance costs but may also lead to damage due to improper operation. Furthermore, because replacing the feeding shaft is difficult, many production processes may neglect shaft inspection and maintenance, leading to further wear and damage. Regular inspections and maintenance may therefore not be carried out in a timely manner, affecting production quality and equipment lifespan. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies.
[0006] To solve the above technical problems, this utility model provides a feeding device for PET tape production, comprising: a base, a roller mounted on the upper surface of the base, a connecting shaft mounted at one end of the base, an auxiliary structure provided on the upper surface of the base, the auxiliary structure including a connector, the connector being fixedly connected to the base, a fixing rod fixedly connected to the inner wall of the connector, a connecting groove formed on the inner wall of the fixing rod, a connecting block rotatably connected to the inner wall of the connecting groove, a connecting rod fixedly connected to the end of the connecting block away from the fixing rod, a fixing plate fixedly connected to the upper surface of the base, a fixing block fixedly connected to the upper surface of the fixing plate, and a limit block fixedly connected to one end of the fixing block. A shaft is rotatably connected to the inner wall of the block. A connecting block is fixedly connected to the arc surface of the shaft. A pressing block is fixedly connected to the end of the connecting block away from the shaft. An auxiliary block is fixedly connected to the end of the pressing block away from the limiting block. An installation block is fixedly connected to the end of the fixing block near the auxiliary block. Sliding grooves are provided on both sides of the installation block. A slider is slidably connected to the inner wall of the sliding groove. A spring is provided inside the sliding groove. The two ends of the spring are fixedly connected to the slider and the sliding groove, respectively. A connecting frame is fixedly connected to the upper surface of the slider. A rotating shaft is rotatably connected to the arc surface of the connecting rod. Two threaded rings are threadedly connected to the arc surface of the rotating shaft. A pressing ring is fixedly connected to the end of each of the two threaded rings that are close to each other.
[0007] The effects achieved by the above components are as follows: When the feeding shaft needs to be installed, the connecting block is pulled to move, the connecting block drives the slider to move, the slider slides on the inner wall of the groove, the slider drives the spring to stretch, then the connecting block and the auxiliary block are reset, then the auxiliary block is pulled to move, the auxiliary block drives the extrusion block to move, the extrusion block drives the connecting block to move, the connecting block drives the shaft to rotate, the shaft rotates on the inner wall of the limit block, then the extrusion block and the fixing block are separated, then the connecting rod is pulled to move, the connecting rod drives the connecting block to move, the connecting block rotates on the inner wall of the connecting groove, then the feeding shaft is installed on the rotating shaft on the connecting rod, after installation, the threaded ring is rotated to move the extrusion ring, then the threaded ring and the extrusion ring are installed on the rotating shaft, then the threaded ring is rotated to move, then the threaded ring extrudes and fixes the connecting ring, then the connecting rod is reset, then the extrusion block and the fixing block are reset, then the connecting block spring is released to retract and drive the connecting frame to abut and fix the auxiliary block.
[0008] Preferably, anti-slip pads are fixedly connected to the sides of the extrusion rings that are close to each other, and the anti-slip pads have a circular cross-section.
[0009] The effect achieved by the above components is that the anti-slip pad can increase the friction between the extrusion ring and the feeding shaft, and prevent the extrusion ring from sliding when extruding the feeding shaft.
[0010] Preferably, the arc surface of the threaded ring is provided with a plurality of slots, and the plurality of slots are evenly distributed on the threaded ring.
[0011] The effect achieved by the above components is that the groove can increase the friction between the threaded ring and the hand, preventing slippage when rotating the threaded ring.
[0012] Preferably, both ends of the shaft are fitted with coil springs, and the two ends of the coil springs are fixedly connected to the connecting block and the limiting block, respectively.
[0013] The effect achieved by the above components is that when the fixing block and the pressing block are opened, the coil spring retracts, and the rebound force of the coil spring can drive the fixing block and the pressing block to reset.
[0014] Preferably, a limiting rod is fixedly connected inside the groove, the limiting rod is slidably connected to the slider, and the spring is sleeved on the arc surface of the limiting rod.
[0015] The effect achieved by the above components is that the limiting rod can limit the spring, prevent the spring from deforming during use, and improve the service life of the spring.
[0016] Preferably, protective pads are fixedly connected to the sides of the fixing block and the extrusion block that are close to each other, and the cross-section of the protective pads is arc-shaped.
[0017] The effect achieved by the above components is that the protective pad can protect the connecting rod and prevent wear from the fixing block and the squeezing block when squeezing and fixing the connecting rod.
[0018] Preferably, the connecting rod has a circular cross-section and is made of stainless steel.
[0019] The effect achieved by the above components is that the stainless steel material can increase the service life of the connecting rod and prevent the connecting rod from rusting during use.
[0020] Compared with related technologies, the feeding device for PET tape production provided by this utility model has the following beneficial effects:
[0021] This utility model provides a feeding device for PET tape production. By incorporating an auxiliary structure, it addresses the issue that in some existing feeding devices, the components for replacing the feeding shaft are tightly integrated or cannot be easily disassembled and replaced. Maintenance personnel require specialized skills and may need to use specialized tools. This not only increases maintenance costs but can also lead to damage due to improper operation. Furthermore, due to the difficulty of replacing the feeding shaft, inspection and maintenance of the shaft may be neglected during many production processes, further exacerbating wear and damage. Regular inspection and maintenance may therefore be delayed, affecting production quality and equipment lifespan. This device allows for convenient and rapid replacement of the feeding shaft, significantly improving both replacement and feeding efficiency, and also provides convenient fixation for different types of feeding shafts. Attached Figure Description
[0022] Figure 1 A schematic diagram of the structure of a feeding device for PET tape production provided by this utility model;
[0023] Figure 2 for Figure 1 The diagram shows the auxiliary structure.
[0024] Figure 3 for Figure 2 The enlarged view of point A shown;
[0025] Figure 4 for Figure 2 The diagram shows a partial structural representation.
[0026] Figure 5 for Figure 4 The enlarged view of point B shown.
[0027] The following are the labeling elements in the diagram: 1. Base; 2. Roller; 3. Connecting shaft; 4. Auxiliary structure; 401. Connector; 402. Fixing rod; 403. Connecting groove; 404. Connecting block; 405. Connecting rod; 406. Rotating shaft; 407. Anti-slip pad; 408. Extrusion ring; 409. Threaded ring; 410. Groove; 411. Fixing plate; 412. Limiting block; 413. Coil spring; 414. Shaft; 415. Connecting block; 416. Fixing block; 417. Extrusion block; 418. Protective pad; 419. Mounting block; 420. Auxiliary block; 421. Connecting frame; 422. Slider; 423. Slide groove; 424. Limiting rod; 425. Spring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0030] Please see Figures 1 to 5 The present invention provides a feeding device for PET tape production, comprising: a base 1, a roller 2 mounted on the upper surface of the base 1, a connecting shaft 3 mounted on one end of the base 1, and an auxiliary structure 4 provided on the upper surface of the base 1.
[0031] In the embodiments of this utility model, please refer to Figures 1 to 5The auxiliary structure 4 includes a connector 401, which is fixedly connected to the base 1. A fixing rod 402 is fixedly connected to the inner wall of the connector 401. A connecting groove 403 is formed on the inner wall of the fixing rod 402. A connecting block 404 is rotatably connected to the inner wall of the connecting groove 403. A connecting rod 405 is fixedly connected to the end of the connecting block 404 away from the fixing rod 402. A fixing plate 411 is fixedly connected to the upper surface of the base 1. A fixing block 416 is fixedly connected to the upper surface of the fixing plate 411. A limit block 412 is fixedly connected to one end of the fixing block 416. A shaft 414 is rotatably connected to the inner wall of the limit block 412. A connecting block 415 is fixedly connected to the arc surface of the shaft 414. A connecting block 415 is fixedly connected to the end of the connecting block 415 away from the shaft 414. An extrusion block 417 is attached. An auxiliary block 420 is fixedly connected to one end of the extrusion block 417 away from the limiting block 412. An installation block 419 is fixedly connected to one end of the fixing block 416 near the auxiliary block 420. A sliding groove 423 is provided on both sides of the installation block 419. A slider 422 is slidably connected to the inner wall of the sliding groove 423. A spring 425 is provided inside the sliding groove 423. The two ends of the spring 425 are fixedly connected to the slider 422 and the sliding groove 423 respectively. A connecting frame 421 is fixedly connected to the upper surface of the slider 422. A rotating shaft 406 is rotatably connected to the arc surface of the connecting rod 405. Two threaded rings 409 are threadedly connected to the arc surface of the rotating shaft 406. An extrusion ring 408 is fixedly connected to one end of each of the two threaded rings 409 that are close to each other. When the feeding shaft needs to be installed, the connecting block 404 is pulled to move, which in turn moves the slider 422. The slider 422 slides on the inner wall of the groove 423, and the slider 422 stretches the spring 425. Then, the connecting block 404 and the auxiliary block 420 are reset. Then, the auxiliary block 420 is pulled to move, which in turn moves the pressing block 417. The pressing block 417 moves the connecting block 415, which in turn moves the shaft 414. The shaft 414 rotates on the inner wall of the limiting block 412. Then, the pressing block 417 and the fixing block 416 are separated. Then, the connecting rod 405 is pulled to move, which in turn moves the connecting block 404. The connecting block 404 rotates on the inner wall of the connecting groove 403, and then the feeding shaft is installed on the rotating shaft 406 on the connecting rod 405. After installation, the threaded ring 409 is rotated to drive the extrusion ring 408 to move. Then the threaded ring 409 and the extrusion ring 408 are installed on the rotating shaft 406. Then the threaded ring 409 is rotated to move, and then the threaded ring 409 extrudes and fixes the connecting ring. Then the connecting rod 405 is reset, and then the extrusion block 417 and the fixing block 416 are reset. Then the connecting block 404 is released and the spring 425 is contracted to drive the connecting frame 421 to abut and fix with the auxiliary block 420. Anti-slip pads 407 are fixedly connected to the sides of the extrusion rings 408 that are close to each other. The cross-section of the anti-slip pads 407 is circular.The anti-slip pad 407 increases the friction between the extrusion ring 408 and the feeding shaft, preventing the extrusion ring 408 from slipping when extruding the feeding shaft. The threaded ring 409 has several slots 410 evenly distributed on its arc surface. These slots 410 increase the friction between the threaded ring 409 and the hand, preventing slippage when rotating the threaded ring 409. Both ends of the shaft 414 are fitted with coil springs 413, which are fixedly connected to the connecting block 415 and the limiting block 412, respectively. When the fixing block 416 and the extrusion block 417 are opened, the coil springs 413 retract, and their rebound force resets the fixing block 416 and the extrusion block 417. A limiting rod 424 is fixedly connected inside the slide groove 423, and the limiting rod 424 is slidably connected to the slider 422. A spring 425 is fitted onto the arc surface of the limiting rod 424. The limiting rod 424 limits the spring 425, preventing deformation during use and extending its service life. Protective pads 418 are fixedly connected to the sides of the fixing block 416 and the pressing block 417 that are close to each other. The protective pads 418 have an arc-shaped cross-section. The protective pads 418 protect the connecting rod 405, preventing wear when the fixing block 416 and the pressing block 417 press and fix the connecting rod 405. The connecting rod 405 has a circular cross-section and is made of stainless steel. The stainless steel material increases the service life of the connecting rod 405 and prevents corrosion during use.
[0032] The working principle of the feeding device for PET tape production provided by this utility model is as follows: When the feeding shaft needs to be installed, the connecting block 404 is pulled to move, the connecting block 404 drives the slider 422 to move, the slider 422 slides on the inner wall of the slide groove 423, the slider 422 drives the spring 425 to stretch, then the connecting block 404 and the auxiliary block 420 are reset, then the auxiliary block 420 is pulled to move, the auxiliary block 420 drives the extrusion block 417 to move, the extrusion block 417 drives the connecting block 415 to move, and the connecting block 415 drives the shaft 414 to move. Rotation causes shaft 414 to rotate within the limit block 412, separating the extrusion block 417 and the fixing block 416. Then, connecting rod 405 is pulled to move, causing connecting block 404 to move. Connecting block 404 rotates within the connecting groove 403. The feeding shaft is then installed on the rotating shaft 406 on connecting rod 405. After installation, rotating threaded ring 409 moves extrusion ring 408. Threaded ring 409 and extrusion ring 408 are then installed on rotating shaft 406. The threaded ring 409 is then rotated to move, and the threaded ring... 409 clamps and fixes the connecting ring, then resets the connecting rod 405, then resets the clamping block 417 and the fixing block 416, then releases the connecting block 404, the spring 425 retracts, causing the connecting frame 421 to abut and fix with the auxiliary block 420. The anti-slip pad 407 increases the friction between the clamping ring 408 and the feeding shaft, preventing the clamping ring 408 from slipping when clamping the feeding shaft. The groove 410 increases the friction between the threaded ring 409 and the hand, preventing slippage when rotating the threaded ring 409. Then, the fixing block 416 and the clamping block 417 are opened. When the coil spring 413 retracts, the rebound force of the coil spring 413 can drive the fixing block 416 and the pressing block 417 to reset. The effects achieved by the above components are as follows: the limiting rod 424 can limit the spring 425, preventing the spring 425 from deforming during use and improving the service life of the spring 425; the protective pad 418 can protect the connecting rod 405, preventing the fixing block 416 and the pressing block 417 from wearing when pressing and fixing the connecting rod 405; the stainless steel material can increase the service life of the connecting rod 405 and prevent the connecting rod 405 from rusting during use.
[0033] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A feeding device for PET tape production, characterized in that, include: A base (1) is provided, with a roller (2) mounted on its upper surface. A connecting shaft (3) is mounted on one end of the base (1). An auxiliary structure (4) is provided on the upper surface of the base (1). The auxiliary structure (4) includes a connector (401). The connector (401) is fixedly connected to the base (1). A fixing rod (402) is fixedly connected to the inner wall of the connector (401). A connecting groove (403) is provided on the inner wall of the fixing rod (402). The inner wall of the connecting groove (403) is... A connecting block (404) is rotatably connected to the base (1). A connecting rod (405) is fixedly connected to one end of the connecting block (404) away from the fixed rod (402). A fixed plate (411) is fixedly connected to the upper surface of the base (1). A fixed block (416) is fixedly connected to the upper surface of the fixed plate (411). A limit block (412) is fixedly connected to one end of the fixed block (416). A shaft (414) is rotatably connected to the inner wall of the limit block (412). The arc surface of the shaft (414) is fixedly connected to... A connecting block (415) is connected to the end of the connecting block (415) away from the shaft (414), and an extrusion block (417) is fixedly connected to the end of the extrusion block (417) away from the limiting block (412). An auxiliary block (420) is fixedly connected to the end of the fixing block (416) near the auxiliary block (420). A mounting block (419) is fixedly connected to the end of the mounting block (419) near the auxiliary block (420). Sliding grooves (423) are provided on both sides of the mounting block (419). A slider (422) is slidably connected to the inner wall of the sliding groove (423). A spring (425) is installed inside the slide groove (423). The two ends of the spring (425) are fixedly connected to the slider (422) and the slide groove (423) respectively. A connecting frame (421) is fixedly connected to the upper surface of the slider (422). A rotating shaft (406) is rotatably connected to the arc surface of the connecting rod (405). Two threaded rings (409) are threadedly connected to the arc surface of the rotating shaft (406). A compression ring (408) is fixedly connected to the end of each of the two threaded rings (409) that are close to each other.
2. The feeding device for PET tape production according to claim 1, characterized in that, Each of the compression rings (408) has an anti-slip pad (407) fixedly connected to one side of each other, and the anti-slip pad (407) has a circular cross-section.
3. The feeding device for PET tape production according to claim 1, characterized in that, The threaded ring (409) has a plurality of slots (410) on its arc surface, and the plurality of slots (410) are evenly distributed on the threaded ring (409).
4. The feeding device for PET tape production according to claim 1, characterized in that, Both ends of the shaft (414) are fitted with coil springs (413), and the two ends of the coil springs (413) are fixedly connected to the connecting block (415) and the limiting block (412) respectively.
5. The feeding device for PET tape production according to claim 1, characterized in that, A limiting rod (424) is fixedly connected inside the slide groove (423). The limiting rod (424) is slidably connected to the slider (422). The spring (425) is sleeved on the arc surface of the limiting rod (424).
6. The feeding device for PET tape production according to claim 1, characterized in that, The fixed block (416) and the pressing block (417) are both fixedly connected to a protective pad (418) on the side that is close to each other. The protective pad (418) has a circular arc cross section.
7. The feeding device for PET tape production according to claim 1, characterized in that, The connecting rod (405) has a circular cross-section and is made of stainless steel.
Citation Information
Patent Citations
Feeding equipment with anti-loosening structure for PET adhesive tape production
CN215287344U