A stretching device for tarpaulin production
By designing a fabric stretching device with detachable winding rollers and heating modules, the problems of cumbersome disassembly and uneven material stress in traditional fabric stretching devices have been solved, achieving tight winding and uniform stretching of the tarpaulin and improving the quality of the finished product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO GEERLY PLASTIC WEAVING CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional fabric stretching devices are cumbersome to disassemble after winding, making it difficult to quickly remove the winding rollers. Furthermore, cold stretching causes uneven stress distribution within the material, affecting the flatness of the tarpaulin and the adhesion of the coating. Uncontrollable shrinkage and warping of the finished product occur during the heat sealing process.
A fabric stretching device was designed, comprising a base plate, a support frame, a take-up roller, a tensioning element, and a heating module. Precise tension control is achieved through a detachable take-up roller, a threaded rod driving the connecting frame and the pressure roller. The heating module and fan are used to improve the uniformity of the fabric stretching, ensuring the tightness of the roll and the quality of the finished product.
It enables quick disassembly of the take-up roller, improves the tension and stretching uniformity of the tarpaulin, reduces dimensional deviation and warping deformation of the finished product, and enhances the consistency of the physical properties of the finished product.
Smart Images
Figure CN224429664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tarpaulin production technology, specifically a tarpaulin stretching device for tarpaulin production. Background Technology
[0002] The stretching device used in tarpaulin production is a key piece of equipment in the tarpaulin manufacturing process. It is a specialized mechanical device mainly used to unfold, tension, and shape the tarpaulin substrate before coating, heat sealing, or sewing processes. Its core function is to eliminate fabric wrinkles through a controllable tension system, ensuring that the tarpaulin remains flat during subsequent processing.
[0003] In tarpaulin production, the tarpaulin usually needs to be rolled up. However, the spacing between traditional rolling rollers is generally fixed, which results in the tarpaulin not being rolled up tightly enough. Therefore, a stretching device is used to tension the tarpaulin during the rolling and conveying process. However, the disassembly of the rolling rollers after the current stretching is completed is quite cumbersome. It is not convenient to quickly remove the rolled rollers after the roll is completed. Moreover, for the processing of thermoplastic tarpaulins, traditional cold stretching can cause uneven distribution of internal stress in the material when stretched at low temperatures. This leads to uncontrollable shrinkage in the subsequent heat sealing process. This not only causes product dimensional deviations that require secondary processing, but also causes quality problems such as edge curling and deformation of the finished product. At the same time, the micro-wrinkles caused by material rebound can also affect the surface flatness of the tarpaulin and the adhesion of the coating. Utility Model Content
[0004] The purpose of this invention is to provide a stretching device for tarpaulin production, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stretching device for tarpaulin production, comprising a base plate, and further comprising:
[0006] A support frame is fixed to one side of the top of the base plate. An auxiliary roller is rotatably connected between the two support frames. A fixed frame is fixedly connected to the rear side of the base plate. A tension member is fixedly connected to the top of the fixed frame. The tension member includes a second motor and a fixing plate. A fixed plate is fixedly connected to one side of the top of the base plate. A sliding groove is opened inside the fixed frame.
[0007] A take-up roller is disposed between the two fixed plates. Slots are provided on both the front and rear sides of the take-up roller. A disassembly and assembly component for disassembling the take-up roller is provided on one side of the fixed plate. The disassembly and assembly component includes a bearing seat. A connecting frame is provided on the front side of the fixed frame. A pressure roller is provided inside the connecting frame. An extension frame is fixedly connected to one side of the connecting frame.
[0008] Preferably, a cylinder is fixedly connected to one side of the top of the base plate, a limiting shell is fixedly connected to the top of the cylinder, and a cutting blade is slidably connected inside the limiting shell.
[0009] Preferably, sliding rods are fixedly connected to both the front and rear sides of the bottom of the limiting shell, and a limiting frame is slidably connected to the surface of the sliding rods. The bottom of the limiting frame is fixedly connected to the base plate.
[0010] Preferably, a first motor is fixedly connected to one side of the fixing plate, and the output end of the first motor extends through to one side of the fixing plate and is fixedly connected to a plug for use with a matching slot.
[0011] Preferably, a plurality of fans are fixedly connected to the top of the extension frame, a heating module is fixedly connected to the top of the fans, and a heat-conducting copper pipe is fixedly connected inside the heating module.
[0012] Preferably, the bearing housing is installed inside the fixed plate, a spring is fixedly connected to one side of the bearing housing, a plug ring is fixedly connected to one side of the spring, and a pull rod extending through to the other side of the bearing housing is fixedly connected to one end of the plug ring.
[0013] Preferably, the second motor is fixed to the top of the fixing frame, and the output end of the second motor extends through to the bottom of the fixing frame and is fixedly connected to a threaded rod. A limit plate is rotatably connected to the bottom of the threaded rod, and one side of the limit plate is fixedly connected to the fixing frame. An internal threaded block is threadedly connected to the surface of the threaded rod, and a slider that slides inside the groove is fixedly connected to one side of the internal threaded block. A support rod is fixedly connected to one side of the internal threaded block, and one side of the support rod extends through the interior of the connecting frame and is fixedly connected to the pressure roller. One end of the support rod is rotatably connected to the inner wall of the connecting frame through a bearing, and the surface of the support rod is rotatably connected to the interior of the connecting frame. The fixing plate is fixed to one side of the internal threaded block, and the other side is fixedly connected to the connecting frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] When the tarpaulin needs to be tensioned, this invention starts the second motor to drive the threaded rod to rotate. Through the precise cooperation between the internal threaded block and the fixing plate, the connecting frame and the pressure roller rise steadily, applying precise tension to the tarpaulin located between the auxiliary roller and the pressure roller. This effectively solves the loosening problem commonly encountered in traditional winding processes, ensuring that the winding tightness meets the process requirements. Multiple fans evenly blow the heat generated by the heating module onto the surface of the tarpaulin through heat-conducting copper pipes, thereby improving the uniformity of stretching and enhancing the dimensional accuracy and physical property consistency of the finished product. Attached Figure Description
[0016] Figure 1A schematic diagram of the structure of the tarpaulin stretching device for tarpaulin production provided by this utility model;
[0017] Figure 2 This is a schematic diagram of the structure from another perspective provided by this utility model;
[0018] Figure 3 A schematic diagram of the tensioning component structure provided by this utility model;
[0019] Figure 4 A schematic diagram of the disassembly and assembly structure provided by this utility model.
[0020] In the diagram: 1. Base plate; 2. Support frame; 3. Auxiliary roller; 4. Fixing frame; 41. Slide groove; 5. Tensioning component; 501. Second motor; 502. Fixing plate; 503. Threaded rod; 504. Limiting plate; 505. Internal threaded block; 506. Slider; 507. Support rod; 6. Fixing plate; 7. Take-up roller; 8. Slot; 9. Assembly / disassembly parts; 901. Bearing seat; 902. Spring; 903. Insert rod ring; 904. Pull rod; 10. Cylinder; 11. Limiting shell; 12. Cutting knife; 13. Slide rod; 14. Limiting frame; 15. First motor; 16. Insert post; 17. Connecting frame; 18. Pressure roller; 19. Extension frame; 20. Fan; 21. Heating module; 22. Heat-conducting copper pipe. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-4 As shown, a fabric stretching device for tarpaulin production includes a base plate 1, and further includes:
[0023] A support frame 2 is fixed to one side of the top of the base plate 1. An auxiliary roller 3 is rotatably connected between the two support frames 2. A fixed frame 4 is fixedly connected to the rear side of the base plate 1. A tension member 5 is fixedly connected to the top of the fixed frame 4. The tension member 5 includes a second motor 501 and a fixing plate 502. A fixed plate 6 is fixedly connected to one side of the top of the base plate 1. A groove 41 is opened inside the fixed frame 4. It is fixed to one side of the top of the base plate 1 by the support frame 2 to facilitate the support of the auxiliary roller 3. Two auxiliary rollers 3 are set to facilitate the limited conveying of the tarpaulin. The tension member 5 is fixedly installed by the fixed frame 4. The tension member 5 can provide tension for the tarpaulin during conveying and facilitate loosening during winding. The groove 41 is opened inside the fixed frame 4 to facilitate the use of the auxiliary fixed frame 4.
[0024] The take-up roller 7 is set between two fixed plates 6. Since the take-up roller 7 is detachable, it can be quickly disassembled after the winding work is completed, which improves the material unloading efficiency and solves the problem of the cumbersome disassembly method of the traditional take-up roller 7. Slots 8 are opened on both the front and rear sides of the take-up roller 7. A disassembly and assembly part 9 for disassembling the take-up roller 7 is provided on one side of the fixed plate 6. The disassembly and assembly part 9 cooperates with the slots 8 inside the take-up roller 7 to facilitate the disassembly and assembly of the take-up roller 7. The disassembly and assembly part 9 includes a bearing seat 901. A connecting frame 17 is provided on the front side of the fixed frame 4. A pressure roller 18 is provided inside the connecting frame 17. An extension frame 19 is fixedly connected to one side of the connecting frame 17. The pressure roller 18 can be rotated and installed through the connecting frame 17. The pressure roller 18 can tighten the tarpaulin during the conveying process to prevent it from loosening during winding and affecting the appearance of the finished product.
[0025] A cylinder 10 is fixedly connected to one side of the top of the base plate 1. A limiting shell 11 is fixedly connected to the top of the cylinder 10. A cutter 12 is slidably connected inside the limiting shell 11. Slide rods 13 are fixedly connected to the front and rear sides of the bottom of the limiting shell 11. A limiting frame 14 is slidably connected to the surface of the slide rods 13. The bottom of the limiting frame 14 is fixedly connected to the base plate 1. When the user needs to cut the rolled-up tarpaulin, the cylinder 10 is opened to raise the limiting shell 11. Then the user pushes the cutter 12 to move within the limiting shell 11, thereby cutting the tarpaulin on the side of the winding roller 7. During the rising of the limiting shell 11, the slide rods 13 will move within the limiting frame 14, thereby ensuring the stability of the limiting shell 11 when it moves up and down.
[0026] A first motor 15 is fixedly connected to one side of the fixed plate 6. The output end of the first motor 15 passes through to one side of the fixed plate 6 and is fixedly connected to a plug 16 that matches the slot 8. Multiple fans 20 are fixedly connected to the top of the extension frame 19. A heating module 21 is fixedly connected to the top of the fans 20. A heat-conducting copper pipe 22 is fixedly connected inside the heating module 21. By turning on the first motor 15, the plug 16 can be rotated. The plug 16, in conjunction with the slot 8 and the disassembly / assembly part 9, can rotate the winding roller 7 to wind up the tensioned tarpaulin. During the winding process, the heating module 21 can be turned on to heat up the heat-conducting copper pipe 22. The heating module 21 typically includes electric heating elements such as resistance wires and ceramic heaters. These heating elements can generate heat when an electric current passes through them. When the current passes through the heating elements inside the heat-conducting copper tube 22, it releases a large amount of heat energy. Copper is a metal with excellent thermal conductivity, so it can quickly conduct the heat generated by the heating elements to the surrounding area of the copper tube. This is prior art, which is clearly known to those skilled in the art and will not be elaborated here. In addition, the fan 20 blows hot air to the bottom of the tarpaulin for heating, which can make the tarpaulin have optimal flexibility and significantly improve the uniformity of stretching, thereby controlling the shrinkage rate of the subsequent heat sealing process.
[0027] The bearing housing 901 is installed inside the fixed plate 6. A spring 902 is fixedly connected to one side of the bearing housing 901, and an insert rod ring 903 is fixedly connected to one side of the spring 902. A pull rod 904 that passes through to the other side of the bearing housing 901 is fixedly connected to one end of the insert rod ring 903. When the take-up roller 7 rotates, the insert rod ring 903 is inside the slot 8 on the take-up roller 7. After the take-up is completed, when the user needs to disassemble, he can pull the pull rod 904 to move the insert rod ring 903 to one side, disengage it from the slot 8, and compress the spring 902. Then the user can pull the take-up roller 7 out of the insert post 16 at an angle, thereby achieving quick disassembly and improving the output efficiency.
[0028] The second motor 501 is fixed to the top of the fixed frame 4. The output end of the second motor 501 extends through to the bottom of the fixed frame 4 and is fixedly connected to a threaded rod 503. The bottom of the threaded rod 503 is rotatably connected to a limit plate 504. One side of the limit plate 504 is fixedly connected to the fixed frame 4. An internal threaded block 505 is threadedly connected to the surface of the threaded rod 503. One side of the internal threaded block 505 is fixedly connected to a slider 506 that slides inside the slide groove 41. One side of the internal threaded block 505 is fixedly connected to a support rod 507. One side of the support rod 507 extends through to the interior of the connecting frame 17 and is fixedly connected to the pressure roller 18. One end of the support rod 507 is rotatably connected to the inner wall of the connecting frame 17 through a bearing, and supports... The surface of rod 507 is rotatably connected to the inside of connecting frame 17. The fixing plate 502 is fixed to one side of the internal thread block 505, and the other side is fixedly connected to the connecting frame 17. By turning on the second motor 501, the output end of the second motor 501 drives the threaded rod 503 to rotate. When the threaded rod 503 rotates, the internal thread block 505 will drive the support rod 507 to move. During the movement of the internal thread block 505, the slider 506 will also move in a limited position inside the slide groove 41. At the same time, the internal thread block 505 will also drive the fixing plate 502 to raise the connecting frame 17. The pressure roller 18 on the surface of the support rod 507 will also rise with the connecting frame 17, thereby tensioning the tarpaulin and preventing it from loosening when rewinding.
[0029] Working principle: First, the user inserts the tarpaulin between the two auxiliary rollers 3, passing over the top of the pressure roller 18, and then rolls it up onto the surface of the take-up roller 7. Then, by turning on the first motor 15, the insert 16 engages to drive the take-up roller 7 to rotate and wind it up. During the winding process, the second motor 501 can be turned on. The output of the second motor 501 drives the threaded rod 503 to rotate. When the threaded rod 503 rotates, the internal threaded block 505 drives the support rod 507 to move. During the movement of the internal threaded block 505, the slider 506 also moves within the groove 41 for a limited position. Simultaneously, the internal threaded block 505 also drives the fixing plate 502 to raise the connecting frame 17. The pressure roller 18 on the surface of the support rod 507 also rises with the connecting frame 17, thereby tensioning the tarpaulin and preventing it from loosening during winding. During the tarpaulin winding process, the heating module 21 can be turned on to heat the heat-conducting copper pipe 22, and the fan 20 can blow hot air to the bottom of the tarpaulin to heat it up. This heating allows the tarpaulin to achieve optimal flexibility and improves the uniformity of stretching, thereby controlling the shrinkage rate of the subsequent heat sealing process. After the winding is completed, the cylinder 10 is turned on to raise the limiting shell 11. Then, the user pushes the cutter 12 to move within the limiting shell 11, thereby cutting the tarpaulin on one side of the winding roller 7. Finally, when the user needs to disassemble the tarpaulin after the winding is completed, the pull rod 904 can be pulled to move the insert ring 903 to one side, disengaging it from the slot 8 and compressing the spring 902. Then, the user can pull the winding roller 7 out of the insert post 16 at an angle, thereby achieving quick disassembly and improving the material output efficiency.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tarpaulin production device comprising a base plate (1), characterized in that, Also includes: A support frame (2) is fixed to one side of the top of the base plate (1). An auxiliary roller (3) is rotatably connected between the two support frames (2). A fixed frame (4) is fixedly connected to the rear side of the base plate (1). A tension member (5) is fixedly connected to the top of the fixed frame (4). The tension member (5) includes a second motor (501) and a fixing plate (502). A fixing plate (6) is fixedly connected to one side of the top of the base plate (1). A sliding groove (41) is opened inside the fixed frame (4). A take-up roller (7) is disposed between the two fixed plates (6). Slots (8) are provided on both the front and rear sides of the take-up roller (7). A disassembly and assembly part (9) for disassembling the take-up roller (7) is provided on one side of the fixed plate (6). The disassembly and assembly part (9) includes a bearing seat (901). A connecting frame (17) is provided on the front side of the fixed frame (4). A pressure roller (18) is provided inside the connecting frame (17). An extension frame (19) is fixedly connected to one side of the connecting frame (17).
2. The stretching device for tarpaulin production according to claim 1, characterized in that: A cylinder (10) is fixedly connected to one side of the top of the base plate (1), and a limiting shell (11) is fixedly connected to the top of the cylinder (10). A cutter (12) is slidably connected inside the limiting shell (11).
3. The stretching device for tarpaulin production according to claim 2, characterized in that: The front and rear sides of the bottom of the limiting shell (11) are fixedly connected with sliding rods (13), and the surface of the sliding rods (13) is slidably connected with a limiting frame (14), and the bottom of the limiting frame (14) is fixedly connected to the base plate (1).
4. A fabric stretching device for tarpaulin production according to claim 1, characterized in that: A first motor (15) is fixedly connected to one side of the fixing plate (6). The output end of the first motor (15) extends through to one side of the fixing plate (6) and is fixedly connected to a plug (16) used in conjunction with the slot (8).
5. A fabric stretching device for tarpaulin production according to claim 1, characterized in that: Multiple fans (20) are fixedly connected to the top of the extension frame (19), and a heating module (21) is fixedly connected to the top of the fan (20). A heat-conducting copper pipe (22) is fixedly connected inside the heating module (21).
6. A fabric stretching device for tarpaulin production according to claim 1, characterized in that: The bearing housing (901) is installed inside the fixed plate (6). A spring (902) is fixedly connected to one side of the bearing housing (901). A plug ring (903) is fixedly connected to one side of the spring (902). A pull rod (904) that passes through to the other side of the bearing housing (901) is fixedly connected to one end of the plug ring (903).
7. A fabric stretching device for tarpaulin production according to claim 1, characterized in that: The second motor (501) is fixed to the top of the fixing frame (4). The output end of the second motor (501) extends through to the bottom of the fixing frame (4) and is fixedly connected to a threaded rod (503). The bottom of the threaded rod (503) is rotatably connected to a limiting plate (504). One side of the limiting plate (504) is fixedly connected to the fixing frame (4). An internal threaded block (505) is threadedly connected to the surface of the threaded rod (503). One side of the internal threaded block (505) is fixedly connected to a sliding groove (41) that slides inside the groove. Block (506), one side of the internal threaded block (505) is fixedly connected to a support rod (507), one side of the support rod (507) extends into the interior of the connecting frame (17) and is fixedly connected to the pressure roller (18), one end of the support rod (507) is rotatably connected to the inner wall of the connecting frame (17) through a bearing, and the surface of the support rod (507) is rotatably connected to the interior of the connecting frame (17), the fixing plate (502) is fixed to one side of the internal threaded block (505), and the other side is fixedly connected to the connecting frame (17).