Cloth tensioning mechanism

Abstract

The utility model discloses a cloth tensioning mechanism, which belongs to the technical field of cloth processing and comprises a base, stand columns are arranged at four corners of the bottom end of the base, two first mounting frames which are symmetrically distributed are fixedly mounted at the top end of the base, and first supporting rollers are rotatably mounted in the two first mounting frames. A second mounting frame is fixedly mounted at the top end of the base, and the second mounting frame is located between the two first mounting frames; and two symmetrically-distributed second supporting rollers are rotationally mounted in the second mounting frame, and two symmetrically-distributed moving openings are formed in one side of the second mounting frame. The second adjusting roller is driven by the lifting assembly to descend, the cloth is pushed through the second adjusting roller, then the cloth plays a role in adjusting the tension of the cloth under the cooperation of the second adjusting roller and the two first adjusting rollers, the tensioning force of the cloth during conveying can be kept, and then the phenomenon that the cloth is wrinkled during rolling can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing technology, and more specifically, to a fabric tensioning mechanism. Background Technology

[0002] Fabric is a commonly used material in decoration, including various types such as synthetic fiber carpets, non-woven wall coverings, linen, nylon, colored adhesive tape, and flannel. During the rolling process, wrinkles may form on the surface of the fabric, potentially causing uneven rolling. Wrinkles within the width of the fabric can also lead to folds after rolling, reducing the rolling effect and potentially affecting subsequent use. Therefore, a fabric tensioning mechanism is needed to tighten the fabric during rolling, improving its flatness. Utility Model Content

[0003] To solve the above problems, this utility model provides a fabric tensioning mechanism, which adopts the following technical solution:

[0004] A fabric tensioning mechanism includes a base, with columns at the four corners of the base bottom, and two symmetrically distributed first mounting frames fixedly installed at the top of the base. A first support roller is rotatably installed in each of the two first mounting frames, and a second mounting frame is fixedly installed at the top of the base, with the second mounting frame located between the two first mounting frames.

[0005] Two symmetrically distributed second support rollers are rotatably mounted inside the second mounting frame. Two symmetrically distributed moving openings are opened on one side of the second mounting frame. A moving block is slidably mounted in each of the two moving openings. A first adjusting roller is rotatably mounted inside each of the two moving blocks. A driving assembly is provided between the two moving blocks on the side away from the first adjusting roller on the same side. A second adjusting roller is provided inside the second mounting frame and is located between the two first adjusting rollers. A lifting assembly is provided between the second adjusting roller and the inner wall of the top of the second mounting frame.

[0006] The base has a heating box at the top, the bottom of the heating box penetrates the base, and a heating component is installed inside the heating box.

[0007] By adopting the above technical solution, when using this equipment, the operator sequentially passes the fabric through the first support roller, the second support roller, the first adjusting roller, and the second adjusting roller. The fabric is then pulled and wound up by the existing winding structure. When the fabric moves, the second adjusting roller can be driven to descend by the lifting component, and the fabric is pushed by the second adjusting roller. The moving block can be driven by the driving component to rise along with the first adjusting roller on the same side. The cooperation of the first and second adjusting rollers helps to adjust the tension of the fabric, ensuring that the fabric maintains a certain tension during transport. This helps to prevent wrinkles from forming during the winding process and maintains the winding effect. Furthermore, when the equipment adjusts the fabric tension, the heating component generates heat and sprays it onto the fabric surface, heating and softening the fabric. This helps to prevent tearing when adjusting the tension, thus protecting the fabric.

[0008] Furthermore, the drive assembly includes a connecting block fixedly installed between the ends of the two moving blocks away from the first adjusting roller on the same side; a first mounting plate is fixedly installed on the side of the second mounting frame near the moving opening; a second mounting plate is fixedly installed on one side of the base; a screw is rotatably installed between the first mounting plate and the second mounting plate; the connecting block is threaded onto the side wall of the screw; the top end of the screw penetrates through the first mounting plate; a secondary gear is fixedly sleeved on the side wall of the end of the screw penetrating the first mounting plate; a first reduction motor is fixedly installed on the top end of the first mounting plate; a main gear is fixedly sleeved on the side wall of the output shaft of the first reduction motor; the main gear and the secondary gear mesh; and two symmetrically distributed stabilizing rods are fixedly installed between the first mounting plate and the second mounting plate, with the bottom ends of both stabilizing rods slidingly penetrating the connecting block.

[0009] By adopting the above technical solution, the first reduction motor drives the main gear to rotate, the main gear drives the secondary gear to rotate, the secondary gear drives the screw to rotate, and the screw drives the connecting block to rise and fall. The connecting block, along with two moving blocks, slides within the moving opening on the same side. The moving blocks, along with the first adjusting roller on the same side, rise and fall. Through the cooperation of the two first adjusting rollers and the second adjusting roller, the tension of the fabric during conveying can be adjusted, which helps to maintain the stability of the fabric during conveying. Furthermore, when the screw drives the connecting block to move, the connecting block slides on the side walls of the two stabilizing rods. By restricting the connecting block through the stabilizing rods, it helps to prevent the connecting block from rotating synchronously with the screw, which helps to maintain the stability of the connecting block's rise and fall.

[0010] Furthermore, the lifting assembly includes a connecting plate disposed above the second adjusting roller. Two symmetrically distributed mounting blocks are fixedly installed at the bottom end of the connecting plate. The two ends of the second adjusting roller are rotatably connected to the opposite side of the mounting blocks on the same side. A lifting plate is disposed above the connecting plate. Two symmetrically distributed support columns are fixedly installed at the bottom end of the lifting plate. Each of the two support columns has a movable groove at its bottom end. A support rod is slidably installed in each movable groove. The bottom ends of the two support rods are fixedly connected to the top end of the connecting plate. A spring is fixedly connected between the top end of the support rod and the inner wall of the top end of the movable groove on the same side. A cylinder is fixedly installed at the top end of the second mounting frame. The piston shaft of the cylinder slides through the second mounting frame and is fixedly connected to the top end of the lifting plate.

[0011] By adopting the above technical solution, the lifting plate, support column, support rod, connecting plate, mounting block, and second adjusting roller are synchronously raised and lowered by a cylinder. The fabric is pushed by the second adjusting roller. The first adjusting roller not only adjusts the tension of the fabric but also supports it. The second adjusting roller pushes the fabric, further adjusting the tension during fabric conveying. This helps to prevent wrinkles from forming during the conveying process and maintains the quality of fabric winding. When the second adjusting roller pushes the fabric, the support rod slides in the movable groove on the same side under the pushing action of the mounting block on the same side. The support rod pushes the spring on the same side to contract, and the spring gives the support rod on the same side a rebound force, which can play a buffering role and help prevent the fabric from being damaged due to excessive pushing force of the second adjusting roller.

[0012] Furthermore, two symmetrically distributed limiting blocks are fixedly installed on the top sidewalls of both support rods, and the inner wall of the movable groove is provided with a limiting groove that matches the limiting block on the same side.

[0013] By adopting the above technical solution, when the support rod slides in the same side movable groove, the support rod slides in the same side limiting groove with the limiting block. Through the cooperation of the limiting block and the limiting groove, the rotation of the support rod in the same side movable groove is restricted, and it helps to prevent the support rod from leaving the same side movable groove.

[0014] Furthermore, sliders are fixedly installed on both sides of the lifting plate, and the inner wall of the second mounting frame is provided with a groove that matches the slider on the same side.

[0015] By adopting the above technical solution, when the cylinder drives the lifting plate to rise and fall within the second mounting frame, the lifting plate carries the slider to slide within the same side groove. The cooperation between the slider and the groove helps to maintain the stability of the lifting plate's rise and fall.

[0016] Furthermore, the heating assembly includes a second geared motor fixedly installed on the inner wall of the bottom of the heating box. A fan blade is fixedly sleeved on the side wall of the output shaft of the second geared motor. The heating box contains a plurality of heating wires arranged in a linear array. The heating wires are located above the second geared motor. A collecting hopper is fixedly installed inside the heating box. The top of the collecting hopper penetrates the heating box. An air outlet frame is provided above the heating box. The top of the air outlet frame has a plurality of air outlet holes arranged in a rectangular array. A telescopic hose is fixedly connected between the bottom of the air outlet frame and the top of the collecting hopper. The bottom of the heating box has a plurality of air inlets arranged in a rectangular array. The bottom of the heating box is provided with dustproof cotton.

[0017] By adopting the above technical solution, heat is generated by heating wire, and then the fan blades are driven to rotate by the second geared motor to generate wind. The wind is heated by the heating wire, and then the hot air enters the telescopic hose through the air collecting hopper. The hot air then enters the air outlet frame through the telescopic hose and is sprayed onto the fabric surface through the air outlet hole at the top of the air outlet frame, achieving the effect of instantly heating and softening the fabric. This facilitates the subsequent adjustment of the fabric tension and helps to prevent the fabric from tearing during the tension adjustment process. In addition, the bottom of the heating box is equipped with an air inlet to facilitate air circulation, and the bottom of the heating box is equipped with dustproof cotton to prevent dust.

[0018] Furthermore, support plates are fixedly installed on both sides of the air outlet frame, and two symmetrically distributed telescopic rods are fixedly installed on the top of the base, with the top ends of the two telescopic rods fixedly connected to the bottom end of the support plate on the same side.

[0019] By adopting the above technical solution, the support plates on the same side are raised and lowered by the telescopic rod. The two support plates, along with the air outlet frame, are raised and lowered, which can adjust the distance between the air outlet frame and the fabric. This makes it easier to adjust the height of the air outlet frame according to the distance the second adjusting roller pushes the fabric, thus facilitating the equipment to heat the fabric.

[0020] In summary, this utility model has the following beneficial technical effects:

[0021] (1) In this utility model, the second adjusting roller is driven to descend by the lifting assembly, and the fabric is pushed by the second adjusting roller. Then, the fabric plays the role of adjusting the tension of the fabric with the cooperation of the second adjusting roller and the two first adjusting rollers, which helps to maintain the tension of the fabric during conveying and thus helps to avoid wrinkles when the fabric is rolled up.

[0022] (2) In this utility model, the two first adjusting rollers can be driven to rise and fall by the driving component to achieve the function of adjusting the height of the first adjusting rollers, thereby further adjusting the tension of the fabric and helping to maintain the stability of the fabric conveying.

[0023] (3) In this utility model, by setting the heating component, heat is generated by the heating wire, and then the fan blade is driven to rotate by the second reduction motor to generate wind. The wind drives the heat to be discharged through the air outlet frame and sprayed onto the fabric surface, which plays the role of heating the fabric, softening the fabric, making it easier to pull the fabric, and helping to avoid the phenomenon of tearing when adjusting the tension of the fabric. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 This utility model Figure 3 Enlarged view of B in the middle;

[0028] Figure 5 This is an exploded view of the heating component in this utility model;

[0029] Figure 6 This is an exploded view of the drive component in this utility model.

[0030] Explanation of the labels in the diagram:

[0031] 1. Base; 2. First mounting frame; 3. First support roller; 4. Second mounting frame; 5. Movable port; 6. Movable block; 7. Connecting block; 8. Screw; 9. Cylinder; 10. First mounting plate; 11. Heating box; 12. Second mounting plate; 13. First geared motor; 14. Main gear; 15. Secondary gear; 16. Second support roller; 17. First adjusting roller; 18. Lifting plate; 19. Support column; 20. Support rod; 21. Connecting plate; 22. Mounting block; 23. Second adjusting roller; 24. Support plate; 25. Telescopic rod; 26. Air outlet frame; 27. Telescopic hose; 28. Heating wire; 29. ​​Second geared motor; 30. Fan blade; 31. Air collection hopper; 32. Spring; 33. Movable groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0036] Please see Figure 1-6 A fabric tensioning mechanism includes a base 1, with columns at the four corners of the bottom end of the base 1, and two symmetrically distributed first mounting frames 2 fixedly installed at the top end of the base 1. A first support roller 3 is rotatably installed in each of the two first mounting frames 2, and a second mounting frame 4 fixedly installed at the top end of the base 1, with the second mounting frame 4 located between the two first mounting frames 2.

[0037] Two symmetrically distributed second support rollers 16 are rotatably mounted inside the second mounting frame 4. Two symmetrically distributed movable openings 5 ​​are opened on one side of the second mounting frame 4. Movable blocks 6 are slidably mounted inside each of the two movable openings 5. First adjusting rollers 17 are rotatably mounted inside each of the two movable blocks 6. A driving assembly is provided between the two movable blocks 6 on the side away from the first adjusting rollers 17 on the same side. The driving assembly includes a connecting block 7 fixedly mounted between the ends of the two movable blocks 6 away from the first adjusting rollers 17 on the same side. A first mounting plate 10 is fixedly mounted on the side of the second mounting frame 4 near the movable openings 5. A second mounting plate 10 is fixedly mounted on one side of the base 1. A screw 8 is rotatably mounted between the first mounting plate 10 and the second mounting plate 12. A connecting block 7 is threaded onto the side wall of the screw 8. The top end of the screw 8 passes through the first mounting plate 10. A secondary gear 15 is fixedly mounted on the side wall of one end of the screw 8 that passes through the first mounting plate 10. A first reduction motor 13 is fixedly mounted on the top end of the first mounting plate 10. A main gear 14 is fixedly mounted on the side wall of the output shaft of the first reduction motor 13. The main gear 14 and the secondary gear 15 mesh. Two symmetrically distributed stabilizing rods are fixedly mounted between the first mounting plate 10 and the second mounting plate 12. The bottom ends of the two stabilizing rods slide through the connecting block 7.

[0038] When using this equipment, the operator passes the fabric sequentially through the first support roller 3, the second support roller 16, the first adjusting roller 17, and the second adjusting roller 23. The fabric is then pulled and wound up using a conventional winding structure. As the fabric moves, the first reduction motor 13 drives the main gear 14 to rotate, which in turn drives the secondary gear 15. The secondary gear 15 then drives the screw 8 to rotate, which in turn drives the connecting block 7 to rise and fall. The connecting block 7, along with two moving blocks 6, slides within the moving opening 5 on the same side. The moving blocks 6, along with the first adjusting roller 17 on the same side, rise and fall. Through the cooperation of the two first adjusting rollers 17 and the second adjusting roller 23, the tension of the fabric during transport can be adjusted, which helps maintain the stability of the fabric during transport. Furthermore, when the screw 8 drives the connecting block 7 to move, the connecting block 7 slides against the side walls of the two stabilizing rods. The stabilizing rods restrict the connecting block 7, which helps prevent the connecting block 7 from rotating synchronously with the screw 8, thus maintaining the stability of the connecting block 7 during its rise and fall.

[0039] The second mounting frame 4 is provided with a second adjusting roller 23, which is located between two first adjusting rollers 17. A lifting assembly is provided between the second adjusting roller 23 and the inner wall of the top of the second mounting frame 4. The lifting assembly includes a connecting plate 21 set above the second adjusting roller 23. Two symmetrically distributed mounting blocks 22 are fixedly installed at the bottom of the connecting plate 21. The two ends of the second adjusting roller 23 are rotatably connected to the opposite side of the mounting blocks 22 on the same side. A lifting plate 18 is provided above the connecting plate 21. Two symmetrically distributed pillars 19 are fixedly installed at the bottom of the lifting plate 18. The bottom of each pillar 19 is provided with a movable groove 33. A support rod 20 is slidably installed in the movable groove 33. The bottom of each support rod 20 is fixedly connected to the top of the connecting plate 21. A spring 32 is fixedly connected between the top of the support rod 20 and the inner wall of the top of the movable groove 33 on the same side. A cylinder 9 is fixedly installed at the top of the second mounting frame 4. The piston shaft of the cylinder 9 slides through the second mounting frame 4 and is fixedly connected to the top of the lifting plate 18.

[0040] The lifting plate 18, support column 19, support rod 20, connecting plate 21, mounting block 22, and second adjusting roller 23 are driven to rise and fall synchronously by cylinder 9. The fabric is pushed by the second adjusting roller 23. The first adjusting roller 17 not only adjusts the tension of the fabric but also supports it. The second adjusting roller 23 pushes the fabric to further adjust the tension of the fabric during conveying, which helps to avoid wrinkles in the fabric during conveying and helps to maintain the winding quality of the fabric. When the second adjusting roller 23 pushes the fabric, the support rod 20 slides in the movable groove 33 on the same side under the pushing action of the mounting block 22 on the same side. The support rod 20 pushes the spring 32 on the same side to contract. The spring 32 gives the support rod 20 on the same side a rebound force, which can play a buffering role and help to prevent the fabric from being damaged due to excessive pushing force of the second adjusting roller 23.

[0041] Two symmetrically distributed limiting blocks are fixedly installed on the top side walls of both support rods 20. The inner wall of the movable groove 33 is provided with a limiting groove that matches the limiting block on the same side. When the support rod 20 slides in the movable groove 33 on the same side, the support rod 20 slides in the limiting groove on the same side with the limiting block. Through the cooperation of the limiting block and the limiting groove, the rotation of the support rod 20 in the movable groove 33 on the same side is restricted, and the support rod 20 is prevented from leaving the movable groove 33 on the same side. Slider blocks are fixedly installed on both sides of the lifting plate 18. The inner wall of the second mounting frame 4 is provided with a sliding groove that matches the slider on the same side. When the cylinder 9 drives the lifting plate 18 to rise and fall in the second mounting frame 4, the lifting plate 18 slides in the sliding groove on the same side with the slider. Through the cooperation of the slider and the sliding groove, the stability of the lifting plate 18 in rising and falling is maintained.

[0042] A heating box 11 is provided at the top of the base 1, and the bottom of the heating box 11 penetrates the base 1. A heating component is provided inside the heating box 11. The heating component includes a second geared motor 29 fixedly installed on the inner wall of the bottom of the heating box 11. A fan blade 30 is fixedly sleeved on the side wall of the output shaft of the second geared motor 29. A plurality of heating wires 28 arranged in a linear array are provided inside the heating box 11. The heating wires 28 are located above the second geared motor 29. A wind collecting hopper 31 is fixedly installed inside the heating box 11. The top of the wind collecting hopper 31 penetrates the heating box 11. An air outlet frame 26 is provided above the heating box 11. A plurality of air outlet holes arranged in a rectangular array are opened at the top of the air outlet frame 26. A telescopic hose 27 is fixedly connected between the bottom of the air outlet frame 26 and the top of the wind collecting hopper 31. A plurality of air inlets arranged in a rectangular array are opened at the bottom of the heating box 11. Dustproof cotton is provided at the bottom of the heating box 11.

[0043] When the equipment adjusts the fabric tension, heat is generated by the heating wire 28, which then drives the fan blade 30 to rotate via the second reduction motor 29, generating airflow. The airflow is heated by the heating wire 28, and then the hot air enters the telescopic hose 27 through the air collection hopper 31. The hot air then enters the air outlet frame 26 through the telescopic hose 27, and is sprayed onto the fabric surface through the air outlet hole at the top of the air outlet frame 26, achieving the effect of instantly heating and softening the fabric. This facilitates subsequent adjustment of the fabric tension and helps to prevent the fabric from tearing during the tension adjustment process. In addition, the heating box 11 has an air inlet at the bottom to facilitate air circulation, and the bottom of the heating box 11 is equipped with dustproof cotton to prevent dust.

[0044] Support plates 24 are fixedly installed on both sides of the air outlet frame 26. Two symmetrically distributed telescopic rods 25 are fixedly installed on the top of the base 1. The tops of the two telescopic rods 25 are fixedly connected to the bottom of the support plate 24 on the same side. The support plate 24 on the same side is driven to rise and fall through the telescopic rods 25. The two support plates 24 bring the air outlet frame 26 up and down, which can adjust the distance between the air outlet frame 26 and the fabric. It is convenient to adjust the height of the air outlet frame 26 according to the distance the second adjusting roller 23 pushes the fabric, so as to facilitate the equipment to heat the fabric.

[0045] The implementation principle of this utility model embodiment is as follows: When using the equipment, the operator passes the fabric sequentially between the first support roller 3, the second support roller 16, the first adjusting roller 17, and the second adjusting roller 23. The fabric is pulled and wound up by the existing winding structure. When the fabric moves, the second adjusting roller 23 can be driven to descend by the lifting component, and the fabric is pushed by the second adjusting roller 23. The moving block 6 can be driven to rise along the same side of the first adjusting roller 17 by the driving component. The cooperation of the first adjusting roller 17 and the second adjusting roller 23 plays a role in adjusting the tension of the fabric, so that the fabric can always maintain a certain tension during the conveying process. This helps to avoid wrinkles in the fabric during the winding process and helps to maintain the winding effect of the fabric. When the equipment adjusts the tension of the fabric, the heating component generates heat and sprays it onto the surface of the fabric, which heats the fabric and softens it. This helps to prevent tearing of the fabric when adjusting the tension and achieves the effect of protecting the fabric.

[0046] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cloth tensioning mechanism comprising a base (1), characterized in that: The base (1) bottom end four corners are provided with stand, the base (1) top end is fixedly installed with two symmetrical first mounting frame (2), two first mounting frame (2) are rotatably installed with first support roller (3), the base (1) top end is fixedly installed with second mounting frame (4), and the second mounting frame (4) is located between two first mounting frame (2); Two second support roller (16) are rotatably installed in the second mounting frame (4) and are symmetrically distributed, two moving ports (5) are symmetrically arranged on one side of the second mounting frame (4), two moving blocks (6) are slidably installed in the two moving ports (5), first adjusting roller (17) is rotatably installed on the inner side of the two moving blocks (6), drive assembly is arranged between the side of the two moving blocks (6) away from the first adjusting roller (17) on the same side, second adjusting roller (23) is arranged in the second mounting frame (4), the second adjusting roller (23) is located between the two first adjusting roller (17), and lifting assembly is arranged between the second adjusting roller (23) and the inner wall of the top end of the second mounting frame (4); The base (1) top end is provided with a heating box (11), the heating box (11) bottom end penetrates the base (1), and the heating box (11) is provided with a heating assembly.

2. A fabric tensioning mechanism according to claim 1, characterised in that: The drive assembly includes a connecting block (7) fixedly installed between the two moving blocks (6) away from the first adjusting roller (17) on the same side, a first mounting plate (10) is fixedly installed on the side of the second mounting frame (4) close to the moving port (5), a second mounting plate (12) is fixedly installed on one side of the base (1), a screw rod (8) is rotatably installed between the first mounting plate (10) and the second mounting plate (12), the connecting block (7) is threadedly sleeved on the side wall of the screw rod (8), the screw rod (8) penetrates the first mounting plate (10) at the top end, a pinion (15) is fixedly sleeved on the side wall of one end of the screw rod (8) penetrating the first mounting plate (10), a first speed reducer motor (13) is fixedly installed on the top end of the first mounting plate (10), a main gear (14) is fixedly sleeved on the side wall of the output shaft of the first speed reducer motor (13), the main gear (14) is engaged with the pinion (15), two symmetrical stable rods are fixedly installed between the first mounting plate (10) and the second mounting plate (12), and the bottom ends of the two stable rods are slidably penetrated into the connecting block (7).

3. A fabric tensioning mechanism according to claim 1, wherein: The lifting assembly comprises a connecting plate (21) arranged above a second adjusting roller (23), two mounting blocks (22) symmetrically distributed are fixedly installed at the bottom end of the connecting plate (21), the second adjusting roller (23) is rotationally connected to the side opposite to the mounting block (22) on the same side at both ends, a lifting plate (18) is arranged above the connecting plate (21), two mounting blocks (22) symmetrically distributed are fixedly installed at the bottom end of the lifting plate (18), two movable grooves (33) are formed at the bottom end of the two mounting blocks (22), a supporting rod (20) is slidably installed in each movable groove (33), the bottom end of the supporting rod (20) is fixedly connected with the top end of the connecting plate (21), a spring (32) is fixedly connected between the top end of the supporting rod (20) and the top end inner wall of the movable groove (33) on the same side, and a cylinder (9) is fixedly installed at the top end of the second mounting frame (4).

4. A fabric tensioning mechanism according to claim 3, wherein: Two limiting blocks are fixedly installed on the top end side wall of the supporting rod (20), and a limiting groove matched with the limiting block on the same side is formed in the inner wall of the movable groove (33).

5. A fabric tensioning mechanism according to claim 3, wherein: A sliding block is fixedly installed on each side of the lifting plate (18), and a sliding groove matched with the sliding block on the same side is formed in the inner wall of the second mounting frame (4).

6. A fabric tensioning mechanism according to claim 1, wherein: The heating assembly comprises a second speed reducer (29) fixedly installed at the inner wall of the bottom end of the heating box (11), a fan blade (30) is fixedly sleeved on the side wall of the output shaft of the second speed reducer (29), a plurality of heating wires (28) are arranged in a straight line array in the heating box (11), the heating wires (28) are located above the second speed reducer (29), a wind collecting funnel (31) is fixedly installed in the heating box (11), the wind collecting funnel (31) penetrates the heating box (11) at the top end, an air outlet frame (26) is arranged above the heating box (11), a plurality of air outlet holes are formed in a rectangular array at the top end of the air outlet frame (26), an elastic hose (27) is fixedly connected between the bottom end of the air outlet frame (26) and the top end of the wind collecting funnel (31), a plurality of air inlet holes are formed in a rectangular array at the bottom end of the heating box (11), and dustproof cotton is arranged at the bottom end of the heating box (11).

7. A fabric tensioning mechanism according to claim 6, wherein: Two supporting plates (24) are fixedly installed on both sides of the air outlet frame (26), two telescopic rods (25) are fixedly installed at the top end of the base (1) in a symmetrical distribution, and the bottom end of each telescopic rod (25) is fixedly connected with the top end of the supporting plate (24) on the same side.

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