Fabric unwinding device for a cloth laying machine

Abstract

The application relates to a fabric unfolding device of a cloth paving machine, which comprises a frame, a cloth discharging roller, two cloth spreading belts connected with the frame, a driving assembly connected with the cloth spreading belts, an abutting piece connected with the frame, and the like. The cloth spreading belts are used for transmitting and driving the cloth spreading belts to spread the cloth. The abutting piece is used for driving the cloth to contact with the cloth spreading belts. The cloth is transmitted through the cloth spreading belts. The abutting piece drives the cloth to contact with the cloth spreading belts. The driving assembly drives the cloth spreading belts to transmit. In the transmission process of the cloth spreading belts, the cloth spreading belts generate stretching force to the two sides of the cloth, so that the cloth is spread, the surface wrinkles of the cloth are reduced, and the paving effect is improved.

Description

Technical Field

[0001] This application relates to the field of fabric spreading machines, and more particularly to a fabric spreading device for a fabric spreading machine. Background Technology

[0002] In the production processes of textiles, apparel, and home textiles, fabric spreading machines play a crucial role. Their main function is to efficiently and smoothly unfold rolls or folds of fabric and precisely lay them on the cutting table according to the required length and number of layers, providing the foundation for subsequent automated cutting processes. The quality of fabric spreading directly affects cutting accuracy, material utilization, and the quality of the final product.

[0003] With the increasing demands for automated and intelligent production in the industry, the operating efficiency, laying accuracy, and stability of fabric spreading machines are also becoming more demanding. Modern fabric spreading machines typically consist of core components such as an unwinding device, a traction conveyor mechanism, a spreading head, a cutting device, and a control system. The basic workflow is as follows: the fabric roll is mounted on the unwinding device, the fabric is pulled out by the traction mechanism, and then the spreading head reciprocates, laying the fabric layer by layer flat on the worktable until the set length is reached, at which point it is cut.

[0004] Regarding the aforementioned technologies, existing fabric spreading machines may experience uneven fabric unfolding during fabric transportation, leading to fabric wrinkles and thus affecting the spreading effect. Utility Model Content

[0005] In order to reduce fabric wrinkles and improve the fabric spreading effect, this application provides a fabric spreading device for a fabric spreading machine.

[0006] The fabric unfolding device for a fabric spreading machine provided in this application adopts the following technical solution: A fabric spreading device for a fabric spreading machine includes a frame and a fabric spreading roller. The fabric spreading roller is rotatably connected to the frame. The frame is connected to a spreading belt. There are two spreading belts, which are respectively located at both ends of the fabric width direction. The spreading belts are connected to a driving component, which is used to drive the spreading belts to transmit and flatten the fabric. The frame is connected to an abutment member, which is used to drive the fabric to contact the spreading belts.

[0007] By adopting the above technical solution, when in use, the fabric is driven to contact the spreading belt by the abutment component, and the driving component drives the spreading belt to be transported. During the transmission of the spreading belt, the spreading belt generates a force that stretches the fabric to both sides, thereby flattening the fabric, reducing wrinkles on the fabric surface, and improving the laying effect.

[0008] Optionally, the spreading belt is connected to a rotating wheel, the spreading belt is provided with a connecting frame, the connecting frame is connected to the frame, the rotating wheel is rotatably connected to the frame, and the two ends of the spreading belt are respectively sleeved on two rotating wheels. The driving component includes a pulley, a belt, and a first motor. The first motor is connected to the connecting frame, the pulley is connected to the output shaft of the first motor, one end of the belt is sleeved on the pulley, and the other end of the belt is sleeved on a rotating wheel.

[0009] By adopting the above technical solution, when in use, the first motor drives the pulley to rotate, the pulley drives the belt to transmit, the belt drives the rotating wheel to rotate, the rotating wheel drives the spreading belt to transmit, thereby driving the spreading belt to flatten the fabric, thus facilitating the transmission of the spreading belt, reducing wrinkles on the fabric surface, and improving the laying effect.

[0010] Optionally, the abutment is a limiting roller, which is provided with a gap between itself and the spreading belt to allow the fabric to pass through. The limiting roller is used to contact the fabric. The limiting roller is connected to a first adjusting component, which is used to change the position of the limiting roller and thus adjust the distance between the limiting roller and the spreading belt.

[0011] By adopting the above technical solution, when in use, the limiting roller contacts the fabric and drives the fabric to press against the spreading belt, so that the spreading belt can better flatten the fabric. In addition, a first adjustment component is added, which can change the position of the limiting roller and adjust the distance between the limiting roller and the spreading belt, so as to adapt to fabrics of different thicknesses and properties and improve the applicability of the equipment.

[0012] Optionally, the first adjustment component includes a rotating plate and a first locking member. The limiting roller is rotatably connected to the rotating plate, and one end of the rotating plate is rotatably connected to the frame. The first locking member is used to lock the rotating plate to the frame.

[0013] By adopting the above technical solution, when adjusting the position of the limiting roller, the rotating plate is rotated to drive the limiting roller to move closer to or further away from the spreading belt. After the limiting roller is adjusted to the corresponding position, the locking component locks the rotating plate to the frame, thereby completing the adjustment of the distance between the limiting roller and the spreading belt. This is to adapt to fabrics of different thicknesses or conditions, better achieve contact between the fabric and the spreading belt, and improve the flattening effect of the fabric.

[0014] Optionally, the frame has a first arc-shaped hole, and the rotating plate has a positioning hole. The positioning hole communicates with the first arc-shaped hole. The first locking member includes a first bolt and a first nut. One end of the first bolt passes through the positioning hole and the first arc-shaped hole and is threadedly connected to the first nut. When the first locking member locks the rotating plate to the frame, the first nut abuts against the frame, and one end of the first bolt abuts against the rotating plate.

[0015] By adopting the above technical solution, when adjusting the position of the limiting roller, the first bolt passes through the positioning hole of the rotating plate and the first arc-shaped hole of the frame and is threadedly connected to the first nut, so that the rotating plate is stably connected to the frame and the limiting roller is stably set on the frame.

[0016] Optionally, the frame is connected to a support roller and a pressure roller. The support roller and the pressure roller are respectively located on both sides of the feed roller. The support roller and the feed roller are spaced apart to allow the fabric to pass through. The pressure roller and the feed roller are spaced apart to allow the fabric to pass through. The pressure roller is used to contact the fabric and drive the fabric to press against the feed roller. The support roller is used to contact the fabric and drive the fabric to press against the feed roller.

[0017] By adopting the above technical solution, support rollers and pressure rollers are added. During use, the support rollers and pressure rollers drive the fabric to press against the surface of the feed roller, thereby reducing the slippage of the fabric on the surface of the feed roller and improving the stability of fabric transportation.

[0018] Optionally, the pressure roller is connected to the frame via a connecting plate. The pressure roller is rotatably connected to the connecting plate, and one end of the connecting plate is rotatably connected to the frame. The connecting plate is rotatably connected to the frame and drives the pressure roller to move closer to or away from the feed roller. The support roller is connected to the frame via a support plate, and one end of the support plate is rotatably connected to the frame. The support plate is rotatably connected to the frame and drives the support roller to move closer to or away from the feed roller.

[0019] By adopting the above technical solution, when the thickness of the transported fabric is different, it is necessary to adjust the distance between the pressure roller and the feed roller. By rotating the connecting plate, the pressure roller is moved closer to or away from the feed roller, thereby changing the distance between the pressure roller and the feed roller, so as to adapt to fabrics of different thicknesses. Similarly, the support roller is rotatably connected to the frame through the support plate. Rotating the support plate moves the support roller closer to or away from the feed roller, thereby changing the distance between the support roller and the feed roller, so as to adapt to fabrics of different thicknesses.

[0020] Optionally, the connecting frame slides along the width of the fabric and engages with the frame. The connecting frame is connected to a second locking member, which is used to lock the connecting frame to the frame.

[0021] By adopting the above technical solution, the connecting frame can slide on the machine frame along the width of the fabric, and the position of the spreading belt can be adjusted according to the actual width of the fabric, so as to meet the flattening requirements of fabrics of different widths.

[0022] Optionally, the connecting frame has an adjustment hole at one end near the frame. The length direction of the adjustment hole is consistent with the width direction of the fabric. The second locking member includes a second bolt and a second nut. One end of the second bolt passes through the adjustment hole and is threaded to the frame and connected to the second nut. When the second locking member locks the connecting frame to the frame, the second nut abuts against the frame and one end of the second bolt abuts against the connecting frame.

[0023] By adopting the above technical solution, when adjusting the position of the connecting frame, the connecting frame is moved along the width of the fabric. When the connecting frame is moved to the corresponding position, the second bolt passes through the adjustment hole and is threaded to the second nut, so that the second nut is pressed against the frame and the second bolt is pressed against the connecting frame, so that the connecting frame is stably connected to the frame, thereby facilitating the adjustment of the position of the connecting frame.

[0024] Optionally, the connecting frame has a movable hole at one end near the machine frame. The length direction of the movable hole is consistent with the width direction of the fabric. The machine frame is connected to a movable block, which is located in the movable hole. The movable block slides along the length direction of the movable hole and engages with the inner wall of the movable hole. The second locking member includes a locking block and a movable member. The locking block slides and engages with the movable block. The connecting frame has several locking slots, which are spaced apart along the width direction of the fabric. The locking block is inserted into the connecting frame through the locking slots. The movable member is used to drive the locking block to slide and engage with the movable block and to drive the locking block to insert into or move away from the locking slot.

[0025] By adopting the above technical solution, when adjusting the position of the connecting frame, the connecting frame is moved so that the moving block moves in the moving hole, thereby driving the locking block to move. When the locking block approaches the corresponding locking groove, the moving part drives the locking block to insert into the locking groove, thereby facilitating the locking of the connecting frame. When unlocking, the moving part drives the locking block to move away from the locking groove, thereby facilitating the unlocking of the connecting frame and facilitating the adjustment of the position of the connecting frame.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. During use, the fabric is pushed through the spreading belt, and the abutment component drives the fabric to contact the spreading belt. The drive component drives the spreading belt to transport the fabric. During the transmission of the spreading belt, the spreading belt exerts a force that stretches the fabric to both sides, thereby flattening the fabric, reducing wrinkles on the fabric surface, and improving the laying effect. 2. In use, the first motor drives the pulley to rotate, the pulley drives the belt to rotate, the belt drives the rotating wheel to rotate, the rotating wheel drives the spreading belt to rotate, and thus drives the spreading belt to flatten the fabric, thereby facilitating the transmission of the spreading belt, reducing wrinkles on the fabric surface, and improving the laying effect. 3. During use, the limiting roller contacts the fabric and drives the fabric to press against the spreading belt, so that the spreading belt can better flatten the fabric. In addition, a first adjustment component is added, which can change the position of the limiting roller and adjust the distance between the limiting roller and the spreading belt, so as to adapt to fabrics of different thicknesses and properties and improve the applicability of the equipment. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of Example 1.

[0028] Figure 2 This is a top view of Embodiment 1.

[0029] Figure 3 This is Example 1 Figure 2 Partial sectional view along the AA direction.

[0030] Figure 4 This is the left view of Embodiment 1.

[0031] Figure 5 This is Example 1 Figure 4 Partial sectional view along the BB direction.

[0032] Figure 6 This is Example 1 Figure 1 Enlarged view of section D.

[0033] Figure 7 This is Example 1 Figure 4 A partial sectional view along the CC direction.

[0034] Figure 8 This is a partial cross-sectional view of Embodiment 2, used to show the second locking element.

[0035] Explanation of reference numerals in the attached drawings: 100, frame; 110, first arc-shaped hole; 120, connecting frame; 121, connecting hole; 122, adjusting hole; 123, second locking element; 124, second bolt; 125, second nut; 126, moving hole; 127, locking groove; 130, moving block; 131, mounting groove; 132, first hole; 140, locking block; 150, moving element; 151, spring; 152, push plate; 200, spreading belt; 210, rotating wheel; 220, rotating rod; 221, third nut; 230, protrusion; 300, feeding roller; 4 00. Drive assembly; 410. Pulley; 420. Belt; 430. First motor; 500. Limit roller; 600. First adjusting assembly; 610. Rotating plate; 611. Positioning hole; 620. First locking element; 621. First bolt; 622. First nut; 700. Support roller; 710. Support plate; 711. Second arc-shaped hole; 720. Fourth bolt; 730. Fourth nut; 800. Pressure roller; 810. Connecting plate; 900. Rotating assembly; 910. Second motor; 920. First sprocket; 930. Second sprocket; 940. Chain. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0037] This application discloses a fabric unfolding device for a fabric spreading machine. (Refer to...) Figure 1 , Figure 2 and Figure 3A fabric spreading device for a fabric spreading machine includes a frame 100, a spreading belt 200, and a feeding roller 300. The frame 100 is connected to the fabric spreading machine body. The spreading belt 200 and the feeding roller 300 are spaced apart along the fabric transport direction. Two spreading belts 200 are provided, spaced apart along the fabric width direction. Each spreading belt 200 is connected to a drive assembly 400, which drives the spreading belt 200 to transport and flatten the fabric. The feeding roller 300 has its length direction aligned with the fabric width direction and is rotatably connected to the frame 100. In use, the fabric passes sequentially through the spreading belt 200 and the feeding roller 300. The drive assembly 400 drives the spreading belt 200 to transport the fabric, thereby flattening the fabric, reducing wrinkles on the fabric surface, and improving the spreading effect.

[0038] Reference Figure 3 The fabric spreading belt 200 has several protrusions 230 connected to its surface. These protrusions 230 are evenly spaced along the length of the spreading belt 200 and are used to contact the fabric. The frame 100 is connected to an abutment member, which drives the fabric to contact the spreading belt 200. The abutment member is a limiting roller 500, which contacts the fabric. A gap is provided between the limiting roller 500 and the spreading belt 200 to allow the fabric to pass through.

[0039] Reference Figure 3 , Figure 4 and Figure 5 The limiting roller 500 is connected to the frame 100 via a first adjusting assembly 600. The first adjusting assembly 600 includes a rotating plate 610 and a first locking member 620. One end of the rotating plate 610 is rotatably connected to the frame 100, and the limiting roller 500 is rotatably connected to the other end of the rotating plate 610. The frame 100 has a first arc-shaped hole 110, with the convex side of the first arc-shaped hole 110 facing towards the side near the limiting roller 500. The rotating plate 610 has a positioning hole 611, which communicates with the first arc-shaped hole 110. The first locking member 620 includes a first bolt 621 and a first nut 622. One end of the first bolt 621 passes through the positioning hole 611 and the first arc-shaped hole 110 and is threadedly connected to the first nut 622. When the first locking member 620 locks the rotating plate 610 to the frame 100, the first nut 622 abuts against the frame 100, and one end of the first bolt 621 abuts against the rotating plate 610. The distance between the limiting roller 500 and the feeding roller 300 is adjustable, which makes it easy to adapt to fabrics of different thicknesses.

[0040] Reference Figure 6 and Figure 7The fabric spreading belt 200 is connected to two rotating wheels 210. The spreading belt 200 is equipped with a connecting frame 120, which is connected to the frame 100. The rotating wheels 210 are rotatably connected to the frame 100. The two rotating wheels 210 are spaced apart along the width of the fabric on the connecting frame 120, and both ends of the spreading belt 200 are respectively fitted onto the two rotating wheels 210. The rotating wheels 210 are connected to the frame 100 via a rotating rod 220. The rotating wheels 210 are rotatably fitted onto one end of the rotating rod 220. The central axis of the rotating wheels 210 is collinear with the central axis of the rotating rod 220. The end of the rotating rod 220 away from the rotating wheels 210 is connected to the connecting frame 120. The connecting frame 120 has two connecting holes 121. The length direction of the connecting holes 121 is consistent with the width direction of the fabric. Each rotating rod 220 is respectively located in the connecting hole 121. The rotating rod 220 slides along the width direction of the fabric and fits into the inner wall of the connecting hole 121. A third nut 221 is threaded on the end of the rotating rod 220 away from the rotating wheel 210. When the third nut 221 is threaded on the rotating rod 220, the third nut 221 abuts against the connecting frame 120.

[0041] Reference Figure 7 The drive assembly 400 includes a pulley 410, a belt 420, and a first motor 430. The first motor 430 is connected to the connecting frame 120, and the pulley 410 is connected to the output shaft of the first motor 430. The central axis of the pulley 410 is collinear with the central axis of the output shaft of the first motor 430. One end of the belt 420 is sleeved on the pulley 410, and the other end of the belt 420 is sleeved on a rotating wheel 210. In use, the first motor 430 drives the pulley 410 to rotate, the pulley 410 drives the belt 420 to transmit power, the belt 420 drives the rotating wheel 210 to rotate, and the rotating wheel 210 drives the spreading belt 200 to transmit power, thereby facilitating the spreading belt 200 to flatten the fabric.

[0042] Reference Figure 3 The connecting frame 120 slides along the width of the fabric and engages with the frame 100. An adjustment hole 122 is provided at one end of the connecting frame 120 near the frame 100, with the length of the adjustment hole 122 aligned with the width of the fabric. A second locking member 123 is connected to the connecting frame 120. The second locking member 123 includes a second bolt 124 and a second nut 125. One end of the second bolt 124 passes through the adjustment hole 122 and is threadedly connected to the frame 100 and the second nut 125. When the second locking member 123 locks the connecting frame 120 onto the frame 100, the second nut 125 abuts against the frame 100, and one end of the second bolt 124 abuts against the connecting frame 120.

[0043] Reference Figure 1The frame 100 is connected to a rotating assembly 900, which drives the feed roller 300 to rotate. The rotating assembly 900 includes a first sprocket 920, a second sprocket 930, a second motor 910, and a chain 940. The first sprocket 920 is sleeved on one end of the feed roller 300, and the central axis of the first sprocket 920 is collinear with the central axis of the feed roller 300. The second motor 910 is connected to the frame 100, and the second sprocket 930 is connected to the output shaft of the second motor 910. The central axis of the output shaft of the second motor 910 is collinear with the central axis of the second sprocket 930. One end of the chain 940 meshes with the first sprocket 920, and the other end of the chain 940 meshes with the second sprocket 930.

[0044] Reference Figure 3 and Figure 5 A support roller 700 is provided on the side of the feed roller 300 near the spreading belt 200. The support roller 700 is connected to the frame 100 via a support plate 710. The length direction of the support roller 700 is the same as that of the feed roller 300. The support roller 700 is rotatably connected to one end of the support plate 710, and the other end of the support plate 710 is rotatably connected to the frame 100. A gap is provided between the support roller 700 and the feed roller 300 to allow the fabric to pass through. The support roller 700 is used to contact the fabric. The support plate 710 has a second arc-shaped hole 711, with the concave side of the second arc-shaped hole 711 facing the connection between the support plate 710 and the frame 100. The frame 100 is connected with a fourth nut 730 and a fourth bolt 720. The fourth bolt 720 passes through the frame 100 and the second arc-shaped hole 711 in sequence and is threadedly connected to the fourth nut 730. The fourth nut 730 is used to abut against the support plate 710, and one end of the fourth bolt 720 is used to abut against the frame 100.

[0045] Reference Figure 3 A pressure roller 800 is provided on the side of the feed roller 300 away from the support roller 700. The pressure roller 800 is connected to the frame 100 via a connecting plate 810. The length direction of the pressure roller 800 is the same as that of the feed roller 300. The pressure roller 800 is rotatably connected to one end of the connecting plate 810, and the other end of the connecting plate 810 is rotatably connected to the frame 100. A gap is provided between the pressure roller 800 and the feed roller 300 to allow the fabric to pass through, and the pressure roller 800 is used to contact the fabric. The fabric passes sequentially through the spreading belt 200, the support roller 700, the feed roller 300, and the pressure roller 800. The addition of the pressure roller 800 and the support roller 700 ensures that the fabric abuts against the surface of the feed roller 300, thereby reducing the possibility of the fabric slipping on the feed roller 300.

[0046] The implementation principle of this embodiment 1 is as follows: In use, the fabric passes through the spreading belt 200 and the feeding roller 300 in sequence. When the fabric passes through the spreading belt 200, the limiting roller 500 contacts the fabric and drives the fabric to press against the spreading belt 200. The first motor 430 drives the pulley 410 to rotate. The pulley 410 rotates and drives the belt 420 to transmit. The belt 420 drives the rotating wheel to rotate. The rotating wheel 210 drives the spreading belt 200 to transmit. The spreading belt 200 generates a force that stretches the fabric to both sides, thereby flattening the fabric, reducing wrinkles on the fabric surface and improving the laying effect.

[0047] Example 2 The difference between this embodiment and Embodiment 1 is as follows: Reference Figure 8 The connecting frame 120 has a movable hole 126 at one end near the frame 100, and the length direction of the movable hole 126 is consistent with the width direction of the fabric. The frame 100 is connected to a movable block 130, which is located in the movable hole 126. One end of the movable block 130 is connected to the frame 100, and the other end of the movable block 130 passes through the movable hole 126. The movable block 130 slides along the length direction of the movable hole 126 and is fitted into the inner wall of the movable hole 126.

[0048] Reference Figure 8 The second locking element 123 includes a locking block 140 and a moving element 150. The moving block 130 has a mounting groove 131 at one end along the width direction of the connecting frame 120. The depth direction of the mounting groove 131 is consistent with the width direction of the connecting frame 120. The locking block 140 slides along the depth direction of the mounting groove 131 and engages with the inner wall of the mounting groove 131. The connecting frame 120 has several locking grooves 127, which are evenly distributed along the length direction of the moving hole 126. The locking block 140 is inserted into the connecting frame 120 through the locking grooves 127. The moving block 130 is connected to the moving element 150. The moving element 150 includes a spring 151 and a push plate 152. The length direction of the spring 151 is consistent with the depth direction of the mounting groove 131. One end of the spring 151 is connected to the inner wall of the mounting groove 131, and the other end is connected to the locking block 140. The spring 151 drives the locking block 140 to insert into the locking groove 127.

[0049] Reference Figure 8 The top of the mounting groove 131 has a first hole 132. The length direction of the first hole 132 is consistent with the depth direction of the mounting groove 131. One end of the push plate 152 is connected to the locking block 140, and the other end of the push plate 152 passes through the first hole 132. The push plate 152 slides along the width direction of the fabric and fits in the first hole 132.

[0050] The implementation principle of this embodiment 2 is as follows: In use, the locking block 140 is inserted into the locking groove 127. When the width of the fabric passing through the spreading belt 200 is different, the push plate 152 is moved. The push plate 152 drives the locking block 140 to move along the depth direction of the mounting groove 131, thereby moving the locking block 140 away from the locking groove 127. This causes the spring 151 to be compressed and deformed, which facilitates the movement of the connecting frame 120. When the connecting frame 120 moves to the corresponding position, the locking block 140 approaches the corresponding locking groove 127. The push plate 152 is released, the spring 151 returns to its shape and pushes the locking block 140 to move, thereby driving the locking block 140 to be inserted into the corresponding locking groove 127. This makes the connecting frame 120 stably connected to the frame 100 and facilitates the adjustment of the position of the connecting frame 120, which is convenient for adapting to fabrics of different widths.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fabric unfolding device for a fabric spreading machine, comprising a frame (100) and a fabric spreading roller (300), wherein the fabric spreading roller (300) is rotatably connected to the frame (100), characterized in that: The frame (100) is connected to a fabric spreading belt (200), and there are two fabric spreading belts (200), which are respectively located at both ends of the fabric width direction. The fabric spreading belt (200) is connected to a drive assembly (400), which is used to drive the fabric spreading belt (200) to transmit and drive the fabric spreading belt (200) to flatten the fabric. The frame (100) is connected to an abutment, which is used to drive the fabric to contact the fabric spreading belt (200).

2. The fabric unfolding device for a fabric spreading machine according to claim 1, characterized in that: The spreading belt (200) is connected to a rotating wheel (210). The spreading belt (200) is provided with a connecting frame (120). The connecting frame (120) is connected to the frame (100). The rotating wheel (210) is rotatably connected to the frame (100). The two ends of the spreading belt (200) are respectively sleeved on two rotating wheels (210). The drive assembly (400) includes a pulley (410), a belt (420), and a first motor (430). The first motor (430) is connected to the connecting frame (120). The pulley (410) is connected to the output shaft of the first motor (430). One end of the belt (420) is sleeved on the pulley (410), and the other end of the belt (420) is sleeved on a rotating wheel (210).

3. The fabric unfolding device for a fabric spreading machine according to claim 1, characterized in that: The contacting element is a limiting roller (500). The limiting roller (500) and the spreading belt (200) are provided with a gap for the fabric to pass through. The limiting roller (500) is used to contact the fabric. The limiting roller (500) is connected to a first adjusting component (600). The first adjusting component (600) is used to change the position of the limiting roller (500) and thereby adjust the distance between the limiting roller (500) and the spreading belt (200).

4. The fabric unfolding device for a fabric spreading machine according to claim 3, characterized in that: The first adjustment component (600) includes a rotating plate (610) and a first locking member (620). The limiting roller (500) is rotatably connected to the rotating plate (610). One end of the rotating plate (610) is rotatably connected to the frame (100). The first locking member (620) is used to lock the rotating plate (610) to the frame (100).

5. The fabric unfolding device for a fabric spreading machine according to claim 4, characterized in that: The frame (100) has a first arc-shaped hole (110), and the rotating plate (610) has a positioning hole (611). The positioning hole (611) communicates with the first arc-shaped hole (110). The first locking member (620) includes a first bolt (621) and a first nut (622). One end of the first bolt (621) passes through the positioning hole (611) and the first arc-shaped hole (110) and is threadedly connected to the first nut (622). When the first locking member (620) locks the rotating plate (610) to the frame (100), the first nut (622) abuts against the frame (100), and one end of the first bolt (621) abuts against the rotating plate (610).

6. The fabric unfolding device for a fabric spreading machine according to claim 1, characterized in that: The frame (100) is connected to a support roller (700) and a pressure roller (800). The support roller (700) and the pressure roller (800) are respectively located on both sides of the feed roller (300). The support roller (700) and the feed roller (300) are provided with a gap for the fabric to pass through. The pressure roller (800) and the feed roller (300) are provided with a gap for the fabric to pass through. The pressure roller (800) is used to contact the fabric and drive the fabric to press against the feed roller (300). The support roller (700) is used to contact the fabric and drive the fabric to press against the feed roller (300).

7. The fabric unfolding device for a fabric spreading machine according to claim 6, characterized in that: The pressure roller (800) is connected to the frame (100) via a connecting plate (810). The pressure roller (800) is rotatably connected to the connecting plate (810). One end of the connecting plate (810) is rotatably connected to the frame (100). The connecting plate (810) is rotatably connected to the frame (100) and drives the pressure roller (800) to move closer to or away from the feed roller (300). The support roller (700) is connected to the frame (100) via a support plate (710). One end of the support plate (710) is rotatably connected to the frame (100). The support plate (710) is rotatably connected to the frame (100) and drives the support roller (700) to move closer to or away from the feed roller (300).

8. The fabric unfolding device for a fabric spreading machine according to claim 2, characterized in that: The connecting frame (120) slides along the width of the fabric and is fitted to the frame (100). The connecting frame (120) is connected to a second locking member (123), which is used to lock the connecting frame (120) to the frame (100).

9. The fabric unfolding device for a fabric spreading machine according to claim 8, characterized in that: The connecting frame (120) has an adjustment hole (122) at one end near the frame (100). The length direction of the adjustment hole (122) is consistent with the width direction of the fabric. The second locking member (123) includes a second bolt (124) and a second nut (125). One end of the second bolt (124) passes through the adjustment hole (122) and is threaded to the frame (100) and the second nut (125). When the second locking member (123) locks the connecting frame (120) onto the frame (100), the second nut (125) abuts against the frame (100), and one end of the second bolt (124) abuts against the connecting frame (120).

10. The fabric unfolding device for a fabric spreading machine according to claim 8, characterized in that: The connecting frame (120) has a movable hole (126) at one end near the frame (100). The length direction of the movable hole (126) is consistent with the width direction of the fabric. The frame (100) is connected to a movable block (130). The movable block (130) is located in the movable hole (126). The movable block (130) slides along the length direction of the movable hole (126) and engages with the inner wall of the movable hole (126). The second locking member (123) includes a locking block (140) and a movable member (124). 50), the locking block (140) slides and engages with the moving block (130), the connecting frame (120) has a plurality of locking slots (127), the plurality of locking slots (127) are spaced apart along the width direction of the fabric, the locking block (140) is inserted into the connecting frame (120) through the locking slots (127), and the moving part (150) is used to drive the locking block (140) to slide and engage with the moving block (130) and drive the locking block (140) to insert into or move away from the locking slots (127).

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