Deviation prevention device for cloth uncoiling

Abstract

The utility model discloses an anti-deviation device for cloth uncoiling, which comprises a rack and an adjusting frame, top plate frames are symmetrically welded on the top of the rack, mounting frames are welded on the top surfaces of the top plate frames, a first mounting shaft is mounted on one side of an inner cavity of each mounting frame, and a cloth spreading roller is fixedly mounted on each first mounting shaft; and a second mounting shaft is mounted on the other side of the interior and exterior of the mounting frame, a blank discharging roller is fixedly mounted on the second mounting shaft, a bidirectional threaded lead screw is mounted on one side between the two top plate frames, a first hand-cranking wheel is fixedly mounted at one end of the bidirectional threaded lead screw, and a first guide sliding rod is fixedly mounted on the other side between the two top plate frames. The cloth spreading device has the advantages that the cloth spreading roller, the blank discharging roller, the adjusting frame and the stop lever shafts are arranged, the stop lever shafts located on one side of the cloth spreading roller and one side of the blank discharging roller can be synchronously adjusted at the same time, a motor does not need to be used for driving, the structure is simple, use is more convenient, the manufacturing cost of the device is reduced, the anti-deviation effect is improved, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of cloth unwinding, in particular to a device for preventing deviation of cloth unwinding. Background Art

[0002] During the fabric production and processing, the grey fabric needs to be sent for bleaching and dyeing. After the grey fabric is produced and processed, it is in roll form. Before sending it for bleaching and dyeing, the rolled grey fabric needs to be sent to the unwinding machine for unwinding or manually unwinding. During the unwinding process, the width of the fabric roll may not be completely accurately matched with the spreading roller, so the fabric is prone to deviation during the unwinding process, which will not only affect the subsequent transportation and processing of the fabric, but also cause damage to the fabric in severe cases. Therefore, a device to prevent the fabric from deviating is needed for unwinding.

[0003] The cloth-unloading device of the present invention is disclosed in the publication number: CN207061391U. A cloth-unloading device comprises a frame, the front part of the frame is provided with a roll cloth placing trough, the rear part of the frame is provided with a cloth-unloading trolley, the upper end of the frame is provided with a spreading roller, a guide roller and a lower cloth roller in sequence from the front to the rear, the upper end of the frame is provided with a pressing roller above the spreading roller, and a retaining mechanism is provided between the spreading roller and the guide roller and the output end of the lower cloth roller. The frame is provided with a driving motor that drives the spreading roller and the lower cloth roller to rotate in the same direction. The retaining mechanism comprises a screw connected to the frame for rotation through a bearing seat, a reduction motor installed on the frame, two nuts symmetrically sleeved on the screw and matched with the screw thread, a gear rod is provided on the nut, and the two nuts are provided with threads with opposite rotation directions. The utility model can unwind the rolled cloth of different widths, and the retaining mechanism is provided to effectively prevent the cloth from running away during the unwinding and unwinding process, so the unwinding efficiency is high and the effect is good.

[0004] When the above-mentioned utility model is in use, it is necessary to adjust the baffle mechanisms located on one side of the spreading roller and the output end side of the lower blank roller respectively to prevent the deviation of cloth rolls of different widths when unwinding. However, the two sets of baffle mechanisms are driven and adjusted by their own reduction motors, which not only increases the manufacturing cost of the device, but also makes it difficult to ensure that the two sets of baffle mechanisms are adjusted synchronously, which will have a certain impact on the anti-deviation effect of the unwinding of the cloth, and its practicality is average. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides an anti-deviation device for cloth unwinding, which can simultaneously adjust the baffle shaft located on one side of the cloth spreading roller and the lower blank roller, and does not require the use of a motor drive. It not only has a simple structure and is more convenient to use, but also reduces the manufacturing cost of the device, improves the anti-deviation effect, and has the advantages of greater practicality, thereby solving the problems in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned simultaneous synchronous adjustment of the baffle shafts located on one side of the cloth spreading roller and the lower blank roller, and no motor drive is required, which not only has a simple structure and is more convenient to use, but also reduces the manufacturing cost of the device, improves the anti-deviation effect, and has the advantages of greater practicality. The specific technical scheme adopted by the utility model is as follows: an anti-deviation device for unwinding cloth, comprising a frame and an adjustment frame, a top plate frame is symmetrically welded on the top of the frame, and a mounting frame is welded on the top surface of the top plate frame, a first mounting shaft is installed on one side of the inner cavity of the mounting frame, and the cloth spreading roller is fixedly installed on the first mounting shaft, and a second mounting shaft is installed on the other side of the inner and outer sides of the mounting frame The cam is fixedly mounted on the second mounting shaft, and a bidirectional threaded screw is installed on one side between the two top plate frames, and a first hand-cranked wheel is fixedly installed on one end of the bidirectional threaded screw, and a first guide slide is fixedly installed on the other side between the two top plate frames, and a first screw sleeve is symmetrically fixedly installed in the two adjusting frames, and a bidirectional threaded screw is threadedly sleeved in the first screw sleeve, and a first guide sleeve is symmetrically fixedly installed in the two adjusting frames, and the first guide slide is sleeved in the first guide sleeve, and the rear bearing seats are symmetrically fixedly installed on the top surfaces of the two adjusting frames, and a stop rod shaft is installed in the bearing seat.

[0009] Furthermore, a driving motor is fixedly mounted on the frame, and a driving shaft is connected to the output end of the driving motor, and a first pulley is fixedly mounted on the driving shaft, a second pulley is fixedly mounted on one end of the first mounting shaft, and a third pulley is fixedly mounted on one end of the second mounting shaft, and a transmission belt is connected between the first pulley, the second pulley and the third pulley.

[0010] Furthermore, a second screw sleeve is fixedly installed in the center of the top surface of the mounting frame, and an adjusting screw is sleeved on the inner thread of the second screw sleeve, and the bottom end of the adjusting screw is connected to the lifting frame, and a second hand-cranked wheel is fixedly installed on the top of the adjusting screw, and pressure rollers are symmetrically installed on both sides of the bottom surface of the lifting frame, and a second guide slide bar is symmetrically welded on the top surface of the lifting frame, and a second guide sleeve is symmetrically fixed on the top surface of the mounting frame, and a second guide slide bar is sleeved in the second guide sleeve, a number of connecting telescopic rods are evenly installed in the center of the bottom surface of the lifting frame, and a mounting plate is installed on the movable end of the connecting telescopic rod, and a number of tensioning guide rollers are installed on the bottom surface of the mounting plate, and a spring is sleeved on the outer side of the connecting telescopic rod.

[0011] Furthermore, a fabric roll placement groove is provided on one side of the frame close to the fabric spreading roller, and universal wheels are evenly installed at the four corners of the bottom surface of the fabric roll placement groove.

[0012] Furthermore, a control panel is fixedly mounted on the frame, and the control panel is electrically connected to the drive motor.

[0013] Furthermore, the two pressing rollers are respectively located directly above the spreading roller and the lower blank roller.

[0014] Furthermore, the cross-section of the mounting frame is in the shape of an inverted concave letter "Q".

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a device for preventing deviation of fabric unwinding, which has the following beneficial effects:

[0017] (1) The utility model is provided with a spreading roller, a lower blank roller, an adjusting frame and a stop rod shaft. When in use, the universal wheel is used to move the cloth roll placement slot to one side of the frame, and the cloth roll placement slot is fixed, and then one end of the cloth roll is passed around the spreading roller, the tensioning guide roller and the lower blank roller in sequence. The user can drive the bidirectional threaded screw to rotate through the first hand-cranked wheel according to the width of the cloth. Because the adjusting frames are symmetrically arranged between the two top plate frames, and the top surfaces of the adjusting frames are symmetrically installed with bearing seats, and the stop rod shaft is installed in the bearing seats, in addition, the first screw sleeves are symmetrically fixedly installed in the two adjusting frames, and the bidirectional threaded screw is threadedly sleeved in the first screw sleeves, and the first guide slide rod is sleeved in the first guide slide rod fixedly installed in the two adjusting frames, so as the bidirectional threaded screw rotates, the two adjusting frames can be driven to move relative to each other along the first guide slide rod until the two sets of stop rod shafts are aligned with the two sides of the unrolled cloth, and then the driving motor is started through the control panel. The cam is fixedly mounted on the first mounting shaft, and the second mounting shaft is fixedly mounted on the third mounting shaft, and the third mounting shaft is fixedly mounted on the fourth mounting shaft, and a transmission belt is sleeved between the first pulley, the second pulley and the third pulley, so that the driving motor can drive the spreading roller and the lower blank roller to rotate synchronously to realize the unwinding of the cloth roll. The two sets of baffle shafts can be used to prevent the problem of deviation and misalignment in the unwinding process of the cloth, and the baffle shaft can be rotated in the bearing seat, which has little effect on the unwinding movement of the cloth, and has high unwinding and unfolding efficiency and good effect, so that the anti-deviation device for unwinding the cloth can simultaneously adjust the baffle shaft on one side of the spreading roller and the lower blank roller, and no motor drive is needed, which is not only simple in structure and more convenient to use, but also reduces the manufacturing cost of the device, improves the anti-deviation effect, and is more practical.

[0018] (2) The utility model is provided with a pressure roller and a tensioning guide roller, and a mounting frame is fixedly welded on the top surface of the top plate frame, and a second screw sleeve is installed in the center of the top surface of the mounting frame, and an adjusting screw is sleeved on the inner thread of the second screw sleeve, and the bottom end of the adjusting screw is connected to the lifting frame, and the pressure roller is symmetrically installed on the bottom surface of the lifting frame, and the second guide slide symmetrically welded on the top surface of the lifting frame is sleeved in the second guide slide, so the user can drive the adjusting screw to rotate by the second hand-cranked wheel to drive the two sets of pressure rollers to upgrade, and when the cloth passes through the spreading roller and the top surface of the lower blank roller, the pressure roller can be The roller rises to a higher moving height to facilitate the passage of the cloth and improve work efficiency. When the cloth has passed through, the lifting frame can drive the pressure roller to move downward, and the pressure roller can be used to flatten and wrinkle-proof the cloth. In addition, a number of connecting telescopic rods are evenly installed in the center of the bottom surface of the lifting frame, and a mounting plate is installed at the movable end of the connecting telescopic rod, and a number of tensioning guide rollers are installed on the bottom surface of the mounting plate. In addition, a spring is sleeved on the outer side of the connecting telescopic rod. The tensioning guide roller can be used to tension and guide the unwound cloth passing through to ensure the stability of the cloth unwinding process and improve the unwinding effect of the cloth roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a device for preventing deviation of cloth unwinding according to an embodiment of the present utility model;

[0021] Figure 2 This is a rear view of the fabric unwinding anti-deviation device according to an embodiment of the present utility model;

[0022] Figure 3 This is a top view of the adjustment frame of the anti-deviation device for unwinding fabric according to an embodiment of the present utility model;

[0023] Figure 4 According to the embodiment of the present utility model Figure 1 A magnified view of point A;

[0024] Figure 5 It is a three-dimensional diagram of the adjustment frame of the anti-deviation device for cloth unwinding according to an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Frame; 2. Drive motor; 3. Control panel; 4. Adjustment frame; 5. Lower blank roller; 6. Baffle shaft; 7. Press roller; 8. Second guide sleeve; 9. Second hand crank; 10. Second guide slide; 11. Mounting frame; 12. Lifting frame; 13. Fabric spreading roller; 14. Top plate frame; 15. Transmission belt; 16. Universal wheel; 17. Fabric roll placement slot; 18. Drive shaft; 19. First pulley; 20. First mounting shaft; 21. Second pulley; 22. Second mounting shaft; 23. Third pulley; 24. Adjustment screw; 25. Bidirectional threaded screw; 26. First screw sleeve; 27. First hand crank; 28. First guide slide; 29. First guide sleeve; 30. Second screw sleeve; 31. Connecting telescopic rod; 32. Spring; 33. Mounting plate; 34. Tensioning guide roller; 35. Bearing seat. DETAILED DESCRIPTION

[0027] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] According to an embodiment of the present utility model, a device for preventing deviation of cloth during unwinding is provided.

[0029] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-5As shown, the anti-deviation device for unwinding fabric according to the embodiment of the present invention includes a frame 1 and an adjusting frame 4, a top plate frame 14 is symmetrically welded on the top of the frame 1, and a mounting frame 11 is welded on the top surface of the top plate frame 14, a first mounting shaft 20 is mounted on one side of the inner cavity of the mounting frame 11, and a spreading roller 13 is fixedly mounted on the first mounting shaft 20, a second mounting shaft 22 is mounted on the other side of the mounting frame 11, and a lower blank roller 5 is fixedly mounted on the second mounting shaft 22, a bidirectional threaded screw 25 is mounted on one side between the two top plate frames 14, and a first hand-cranked wheel 27 is fixedly mounted on one end of the bidirectional threaded screw 25, and a first guide slide bar 28 is fixedly mounted on the other side between the two top plate frames 14, A first screw sleeve 26 is symmetrically fixedly installed in the two adjusting frames 4, and a bidirectional threaded screw 25 is sleeved on the inner thread of the first screw sleeve 26, a first guide sleeve 29 is symmetrically fixedly installed in the two adjusting frames 4, and a first guide slide rod 28 is sleeved in the first guide sleeve 29, and the top surfaces of the two adjusting frames 4 are symmetrically fixedly installed with a rear bearing seat 35, and a baffle shaft 6 is installed in the bearing seat 35, which enables the anti-deviation device for unwinding the cloth to simultaneously adjust the baffle shaft 6 on one side of the spreading roller 13 and the lower blank roller 5, and does not require the use of a motor drive, which not only has a simple structure and is more convenient to use, but also reduces the manufacturing cost of the device, improves the anti-deviation effect, and is more practical.

[0030] In one embodiment, a drive motor 2 is fixedly mounted on the frame 1, and a drive shaft 18 is connected to the output end of the drive motor 2, and a first pulley 19 is fixedly mounted on the drive shaft 18, a second pulley 21 is fixedly mounted on one end of the first mounting shaft 20, and a third pulley 23 is fixedly mounted on one end of the second mounting shaft 22, and a transmission belt 15 is sleeved between the first pulley 19, the second pulley 21 and the third pulley 23, so that the drive motor 2 can drive the spreading roller 13 and the lower blank roller 5 to rotate synchronously, so as to realize the unwinding processing of the fabric roll.

[0031] In one embodiment, a second screw sleeve 30 is fixedly installed at the center of the top surface of the mounting frame 11, and an adjusting screw 24 is sleeved on the inner thread of the second screw sleeve 30, and the bottom end of the adjusting screw 24 is connected to the lifting frame 12, and a second hand-cranked wheel 9 is fixedly installed on the top of the adjusting screw 24. Pressure rollers 7 are symmetrically installed on both sides of the bottom surface of the lifting frame 12, and a second guide slide rod 10 is symmetrically welded on the top surface of the lifting frame 12. A second guide sleeve 8 is symmetrically fixed on the top surface of the mounting frame 11, and a second guide sleeve 8 is sleeved inside the second guide sleeve 8. The second guide slide bar 10 and the lifting frame 12 are evenly installed with a plurality of connecting telescopic rods 31 in the center of the bottom surface, and the movable end of the connecting telescopic rod 31 is installed with a mounting plate 33, and the bottom surface of the mounting plate 33 is installed with a plurality of tensioning guide rollers 34. The outer side of the connecting telescopic rod 31 is sleeved with a spring 32, which plays a role in flattening and wrinkle-proofing the passing cloth by using the pressure roller 7, and the set tensioning guide roller 34 can be used to tension and guide the unwinding cloth passing through, so as to ensure the stability of the cloth unwinding process and improve the unwinding effect of the cloth roll.

[0032] In one embodiment, a fabric roll placement slot 17 is provided on one side of the frame 1 close to the spreading roller 13, and universal wheels 16 are evenly installed at the four corners of the bottom surface of the fabric roll placement slot 17, which facilitates moving the fabric roll to one side of the frame 1 for unwinding.

[0033] In one embodiment, a control panel 3 is fixedly mounted on the frame 1 , and the control panel 3 is electrically connected to the drive motor 2 , thereby controlling the normal operation of the device.

[0034] In one embodiment, the two pressing rollers 7 are located directly above the spreading roller 13 and the lower blank roller 5 respectively.

[0035] In one embodiment, the cross-section of the mounting bracket 11 is in the shape of an inverted concave letter "Q".

[0036] Working principle: The utility model is provided with a spreading roller 13, a lower blank roller 5, an adjusting frame 4 and a baffle shaft 6. When in use, the universal wheel 16 is used to move the cloth roll placement slot 17 to one side of the frame 1, and the cloth roll placement slot 17 is fixed, and then one end of the cloth roll is passed around the spreading roller 13, the tensioning guide roller 34 and the lower blank roller 5 in turn. The user can drive the bidirectional threaded screw 25 to rotate through the first hand-cranked wheel 27 according to the width of the cloth, because the adjusting frame 4 is symmetrically arranged between the two top plate frames 14, and the top surfaces of the adjusting frames 4 are symmetrically installed with bearing seats 35, and the baffle shaft 6 is installed in the bearing seats 35. In addition, the first screw sleeves 26 are symmetrically fixedly installed in the two adjusting frames 4, and the internal threads of the first screw sleeves 26 are connected with the bidirectional threaded screw The two adjusting frames 4 are provided with a first guide slide 29 which is fixedly installed therein, and a first guide slide 28 is sleeved therein. Therefore, as the bidirectional threaded screw 25 rotates, the two adjusting frames 4 can be driven to move relative to each other along the first guide slide 28 until the two sets of baffle shafts 6 are aligned with the two sides of the unwinding cloth. Then the drive motor 2 is started through the control panel 3 to drive the drive shaft 18 to rotate together with the first pulley 19. The cloth spreading roller 13 is fixedly installed on the first mounting shaft 20, and a second pulley 21 is fixedly installed at one end of the first mounting shaft 20. The lower blank roller 5 is fixedly installed on the second mounting shaft 22, and a third pulley 23 is fixedly installed at one end of the second mounting shaft 22. The first pulley 19, the second pulley 21 and the third pulley 23 are provided. The transmission belt 15 is sleeved therein, so the driving motor 2 can drive the spreading roller 13 and the lower blank roller 5 to rotate synchronously to realize the unwinding of the cloth roll. The two sets of baffle shafts 6 can be used to prevent the problem of deviation and misalignment during the unwinding of the cloth, and the baffle shaft can rotate in the bearing seat 35, which has little effect on the unwinding movement of the cloth, and the unwinding and unfolding efficiency is high and the effect is good, so that the anti-deviation device for unwinding the cloth can simultaneously adjust the baffle shaft 6 on one side of the spreading roller 13 and the lower blank roller 5, and there is no need to use a motor drive, which is not only simple in structure and more convenient to use, but also reduces the manufacturing cost of the device, improves the anti-deviation effect, and is more practical. The utility model is provided with a pressure roller 7 and a tensioning guide roller 34, and the top surface of the top plate frame 14 is fixedly welded with The mounting frame 11 is provided with a second screw sleeve 30 at the center of the top surface of the mounting frame 11, and the second screw sleeve 30 is internally threaded with an adjusting screw 24, the bottom end of the adjusting screw 24 is connected to the lifting frame 12, and the bottom surface of the lifting frame 12 is symmetrically provided with a pressure roller 7, and the top surface of the lifting frame 12 is symmetrically welded with a second guide slide 10 which is sleeved in the second guide slide 8, so the user can drive the adjusting screw 24 to rotate and drive the two sets of pressure rollers 7 to upgrade by the second hand-cranked wheel 9. When the cloth passes through the spreading roller 13 and the top surface of the lower blank roller 5, the pressure roller 7 can be raised to a moving height to facilitate the passage of the cloth and improve work efficiency. After the cloth has passed through, the lifting frame 12 can drive the pressure roller 7 to move downward, and the pressure roller 7 is used to flatten and wrinkle-proof the cloth.In addition, several connecting telescopic rods 31 are evenly installed in the center of the bottom surface of the lifting frame 12. The movable ends of the connecting telescopic rods 31 are installed with mounting plates 33. The bottom surface of the mounting plates 33 is installed with several tensioning guide rollers 34. In addition, springs 32 are sleeved on the outer sides of the connecting telescopic rods 31. The tensioning guide rollers 34 can be used to tension and guide the unwound fabric passing through, ensuring the stability of the fabric unwinding process and improving the unwinding effect of the fabric roll.

[0037] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preventing deviation of cloth from unwinding, comprising a frame (1) and an adjusting frame (4), characterized in that: A top plate frame (14) is symmetrically welded to the top of the frame (1), and a mounting frame (11) is welded to the top surface of the top plate frame (14). A first mounting shaft (20) is mounted on one side of the inner cavity of the mounting frame (11), and a spreading roller (13) is fixedly mounted on the first mounting shaft (20). A second mounting shaft (22) is mounted on the other side of the mounting frame (11), and a lower blank roller (5) is fixedly mounted on the second mounting shaft (22). A bidirectional threaded screw (25) is mounted on one side between the two top plate frames (14), and a first hand-cranked screw (25) is fixedly mounted on one end of the bidirectional threaded screw (25). Wheel (27), a first guide slide bar (28) is fixedly installed on the other side between the two top plate frames (14), a first screw sleeve (26) is symmetrically fixedly installed in the two adjustment frames (4), and a bidirectional threaded screw (25) is sleeved on the inner thread of the first screw sleeve (26), a first guide slide bar (29) is symmetrically fixedly installed in the two adjustment frames (4), and the first guide slide bar (28) is sleeved in the first guide slide bar (29), and a rear bearing seat (35) is symmetrically fixedly installed on the top surface of the two adjustment frames (4), and a blocking rod shaft (6) is installed in the bearing seat (35).

2. The anti-deviation device for unwinding fabric according to claim 1, characterized in that: A driving motor (2) is fixedly mounted on the frame (1), and a driving shaft (18) is connected to the output end of the driving motor (2), and a first pulley (19) is fixedly mounted on the driving shaft (18), a second pulley (21) is fixedly mounted on one end of the first mounting shaft (20), and a third pulley (23) is fixedly mounted on one end of the second mounting shaft (22), and a transmission belt (15) is sleeved between the first pulley (19), the second pulley (21) and the third pulley (23).

3. The anti-deviation device for unwinding fabric according to claim 1, characterized in that: A second screw sleeve (30) is fixedly installed at the center of the top surface of the mounting frame (11), and the second screw sleeve (30) is internally threaded with an adjusting screw (24), and the bottom end of the adjusting screw (24) is connected to the lifting frame (12), and a second hand-cranked wheel (9) is fixedly installed at the top end of the adjusting screw (24). Pressing rollers (7) are symmetrically installed on both sides of the bottom surface of the lifting frame (12), and a second guide slide bar (10) is symmetrically welded on the top surface of the lifting frame (12). A second guide sleeve (8) is symmetrically fixedly mounted on the top surface of the mounting frame (11), and a second guide slide rod (10) is sleeved inside the second guide sleeve (8). A plurality of connecting telescopic rods (31) are evenly mounted at the center of the bottom surface of the lifting frame (12), and a mounting plate (33) is mounted on the movable end of the connecting telescopic rod (31), and a plurality of tensioning guide rollers (34) are mounted on the bottom surface of the mounting plate (33). A spring (32) is sleeved on the outside of the connecting telescopic rod (31).

4. The device for preventing deviation of cloth unwinding according to claim 1, characterized in that: A cloth roll placement groove (17) is provided on one side of the frame (1) close to the cloth spreading roller (13), and universal wheels (16) are evenly installed at the four corners of the bottom surface of the cloth roll placement groove (17).

5. The device for preventing deviation of cloth unwinding according to claim 1, characterized in that: A control panel (3) is fixedly mounted on the frame (1), and the control panel (3) is electrically connected to the drive motor (2).

6. The device for preventing deviation of cloth unwinding according to claim 3, characterized in that: The two pressing rollers (7) are respectively located directly above the spreading roller (13) and the lower blank roller (5).

7. The device for preventing deviation of cloth unwinding according to claim 1, characterized in that: The cross-section of the mounting frame (11) is in the shape of an inverted concave letter "Q".

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