A multi-layer adjustable automatic fabric spreading machine

Abstract

This invention discloses a multi-layer, differentially adjustable automatic fabric spreading machine, comprising a frame with multiple fabric roll placement sections on the frame. Each fabric roll placement section has a feed section on its side. An intermittent clamping assembly is located at the fabric roll output end of the frame. Multiple guide clamping sections are arranged between the intermittent clamping assembly and the multiple fabric roll placement sections. The guide clamping sections are connected to the frame via angular spring-loaded components. Before cutting the multi-layer fabric, the guide clamping sections clamp the fabric. After the intermittent clamping assembly releases the multi-layer fabric, the fabric clamped by the guide clamping sections experiences a tension change, causing the angular spring-loaded components to swing. The feed section drives the fabric rolls on the fabric roll placement sections to actively convey the fabric according to the rotation angle of the angular spring-loaded components, allowing the guide clamping sections to return to their initial positions. This invention can detect the conveying status of each fabric roll during the spreading and cutting processes and can achieve differential adjustment for each fabric roll.

Description

Technical Field

[0001] This invention relates to the field of automatic fabric spreading machine technology, and specifically to a multi-layer, differentially adjustable automatic fabric spreading machine. Background Technology

[0002] Existing multi-layer fabric spreading machines, when laying multiple layers of fabrics of different materials, mostly rely on methods such as deviation correction and tension control to ensure the flatness of the fabric after laying. The laying action of existing multi-layer fabric spreading machines, or fabric laying machines, specifically includes: the spreading body clamps the ends of the multi-layer fabric (formed in a layered laying manner) held by the fabric cutting worktable; then the fabric cutting worktable releases; the spreading body pulls the multi-layer fabric to the target length; then the fabric cutting worktable clamps and cuts the multi-layer fabric; and the fabric roll on the fabric roll placement device is conveyed by the spreading body.

[0003] Although the correction device and tension control device can adjust the flatness and deviation of the fabric entering the fabric cutting worktable, the tension control device can maintain the consistency of tension of each fabric in the multi-layer fabric during the conveying process.

[0004] However, since the fabric spreading body and the fabric cutting workbench are always in a clamping state on the multi-layered fabric, the multi-layered fabric can only release stress according to its own material properties (at the cut position of the fabric) after the fabric cutting workbench cuts the multi-layered fabric. Therefore, the fabric laid by the fabric spreading body will be deformed or shrink at the ends. During the multi-layered fabric spreading process, due to the different properties of the fabric, it is necessary to pay attention to the flatness of the different properties of the fabric. Moreover, during the long-distance fabric spreading process, deviation may be caused by mutual influence.

[0005] In summary, existing multi-layer fabric spreading machines cannot solve the problem of poor fabric spreading and forming effect caused by the different materials of each layer of fabric during the multi-layer fabric spreading process. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-layer adjustable automatic fabric spreading machine to solve the technical problem in the prior art where the fabric spreading effect is poor due to the different materials of each layer of fabric during the multi-layer spreading process.

[0007] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0008] A multi-layer adjustable automatic fabric spreading machine includes a frame with multiple fabric roll placement sections on the frame;

[0009] A feeding part is provided on the side of each fabric roll placement part. The feeding part contacts the fabric roll placed on the fabric roll placement part and is used to drive the fabric roll on the fabric roll placement part to perform an active conveying action.

[0010] The frame is provided with an intermittent clamping component at the fabric roll output end, and the fabric on the multiple fabric roll placement parts is output in layers at the intermittent clamping component. The intermittent clamping component is used to clamp the multi-layer fabric input into the intermittent clamping component before the multi-layer fabric output at the fabric output end of the intermittent clamping component is cut, and to release the multi-layer fabric after the multi-layer fabric is cut.

[0011] Multiple guide clamping parts are provided between the intermittent clamping assembly and the multiple fabric roll placement parts, and the guide clamping parts correspond one-to-one with the fabric roll placement parts. The guide clamping parts are connected to the frame through angle spring members, and the guide clamping parts are used to give the fabric that bypasses and contacts the guide clamping parts an initial vertical downward force.

[0012] The guide clamping part clamps the fabric before the cutting of the multi-layer fabric. After the intermittent clamping assembly releases the multi-layer fabric laid out, the fabric clamped by the guide clamping part experiences a change in tension, and the angle spring member drives the guide clamping part to swing.

[0013] The feeding unit drives the fabric roll on the fabric roll placement unit to actively convey the fabric roll according to the rotation angle of the angle spring member, so that the guide clamping part returns to its initial position and the guide clamping part releases the fabric.

[0014] As a preferred embodiment of the present invention, a plurality of guide rollers are provided between the plurality of fabric roll placement portions and the guide clamping portions, and the guide rollers correspond one-to-one with the guide clamping portions, and the fabric on the fabric roll placement portion passes over the guide rollers.

[0015] In a preferred embodiment of the present invention, the guide clamping part includes a counterweight roller and a clamping roller, and the fabric forms a gap between the counterweight roller and the clamping roller for the fabric to pass through. The two ends of the counterweight roller are connected to the frame through the angle spring member, and the clamping roller is connected to the angle spring member through a drive part.

[0016] The driving unit is used to drive the counterweight roller to move closer to or further away from the clamping roller to clamp and release the fabric.

[0017] As a preferred embodiment of the present invention, the angle spring member includes a rotating arm with one end connected to the end of the counterweight roller, and the other end of the rotating arm is connected to the frame through a spiral spring member.

[0018] The spiral spring is used to provide elastic swing of the rotating arm when subjected to tension changes of the fabric roll, and to form a control signal for the feed section to drive the fabric roll on the fabric roll placement section to perform active conveying action.

[0019] As a preferred embodiment of the present invention, the spiral spring component includes a disc base disposed on the frame and a rotating spindle rotatably mounted at the center of the disc base. A planar spiral spring is fitted on the shaft of the rotating spindle, the inner ring of the planar spiral spring is connected to the rotating spindle, and the inner ring of the planar spiral spring is connected to the inner wall of the disc base.

[0020] In a preferred embodiment of the present invention, the rotating arm is connected to one end of the rotating spindle along the radial direction of the rotating spindle, and the other end of the rotating spindle is connected to an angle decoder. The angle decoder is used to obtain the rotation angle of the rotating spindle and to generate a control signal for the feeding part to drive the cloth roll on the cloth roll placement part to perform an active conveying action.

[0021] As a preferred embodiment of the present invention, the intermittent clamping assembly includes a base and a clamping part. The tops of both sides of the clamping part are connected to the base through a rotating connector. An angle driving member is provided on the base, and the output end of the angle driving member is connected to the bottom of the intermittent clamping part.

[0022] The angle driving member is used to drive the clamping part to rotate around the rotating connector toward the guide clamping part after the clamping part releases the multi-layer fabric.

[0023] As a preferred embodiment of the present invention, the feeding part includes a bracket mounted on the frame, and a drive roller and a servo motor for driving the drive roller to rotate are connected to the bracket;

[0024] The active roller contacts the point where the fabric detaches from the fabric roll.

[0025] In a preferred embodiment of the present invention, the counterweight roller and the clamping roller have the same diameter, and the diameter of the counterweight roller and the clamping roller is smaller than the diameter of the guide roller.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] In this invention, after the fabric cutting workbench cuts multiple layers of fabric, the workbench releases the multiple layers of fabric once. At this time, each layer of fabric will immediately experience stress release after being released. The changes of each layer of fabric are then quantitatively characterized. Subsequently, based on the quantitative characterization results of the initial and changed states of the fabric, the fabric rolls on the fabric roll placement rack are actively fed until the quantitative characterization of the fabric is zero. The fabric cutting workbench then re-clamps the multiple layers of fabric and transports them, thereby enabling targeted adjustment of each layer of fabric. Attached Figure Description

[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the angle spring mechanism in an embodiment of the present invention.

[0031] The labels in the diagram represent the following:

[0032] 1-Frame; 2-Fabric roll placement section; 3-Feeding section; 4-Intermittent clamping assembly; 5-Guide clamping section; 6-Angle spring element; 7-Guide roller; 8-Fabric roll;

[0033] 31-Support; 32-Drive roller;

[0034] 41-Base; 42-Clamping part; 43-Rotating connector; 44-Angle drive component;

[0035] 51-Counterweight roller; 52-Clamping roller; 53-Drive unit;

[0036] 61-Rotating arm; 62-Coiled spring component; 63-Disc base; 64-Rotating spindle; 65-Planar spiral spring. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figure 1As shown, this invention provides a multi-layer, differentially adjustable automatic fabric feeding machine, including a frame 1. Multiple fabric roll placement sections 2 are provided on the frame 1. The fabric roll placement sections 2 in this invention are mainly for fabric rolls with a rotating shaft. The end of the rotating shaft is mounted on the fabric roll placement section 2. The fabric roll placement section 2 is equivalent to a set of two bearing seats, and the end of the rotating shaft of the fabric roll is mounted on the frame 1 through the bearing seats. The specific arrangement of the multiple fabric rolls (i.e., how the multiple fabric roll placement sections 2 are mounted on the frame 1) can be designed according to actual conditions, but the requirement is that the conveying parts of each fabric roll do not contact each other at this point.

[0039] This invention provides a technical solution for differentiated adjustment of multi-layer fabric rolls in the background art when each roll contains different materials.

[0040] After the fabric cutting workbench cuts through multiple layers of fabric, it releases the fabric. Each piece of fabric experiences stress release immediately upon release, and the changes in each piece are quantified. Based on the quantified results of the initial and changed states of the fabric, the fabric rolls on the roll placement rack are actively fed until the quantified values ​​on the fabric reach zero (i.e., the fabric cutting workbench no longer holds the fabric, and the fabric is in a state similar to no tension). The fabric cutting workbench then re-clamps the multiple layers of fabric for transport, thereby achieving targeted adjustment of each piece of fabric.

[0041] Therefore, in order to implement the above technical solution, a feeding part 3 needs to be provided on the side of each fabric roll placement part 2 (the existing multi-layer fabric spreading machine is simply achieved by the traction of the fabric spreading body). The feeding part 3 contacts the fabric roll placed on the fabric roll placement part 2 and is used to drive the fabric roll on the fabric roll placement part 2 to perform active conveying action. This feeding part 3 mainly contacts the fabric roll and can actively drive the fabric roll to convey the fabric.

[0042] Of course, the feed section 3 needs to be able to actively adjust according to the diameter of the fabric roll, always maintain stable contact with the fabric roll, and actively transport it.

[0043] Furthermore, the fabric roll output end of the frame 1 is provided with an intermittent clamping component 4 (that is, the existing fabric cutting workbench), and the fabric on the multiple fabric roll placement parts 2 is output in layers at the intermittent clamping component 4. The intermittent clamping component 4 is used to clamp the multi-layer fabric input to the intermittent clamping component 4 before the multi-layer fabric output in layers at the fabric output end of the intermittent clamping component 4 is cut, and to release the multi-layer fabric after the multi-layer fabric is cut.

[0044] Multiple guide clamping parts 5 are provided between the intermittent clamping assembly 4 and the multiple fabric roll placement parts 2, and each guide clamping part 5 corresponds one-to-one with the fabric roll placement part 2. The guide clamping parts 5 are connected to the frame 1 through angle spring members 6, and the guide clamping parts 5 are used to give the fabric that passes around and contacts the guide clamping parts 5 an initial vertical downward force, such as... Figure 2 As shown.

[0045] In this design, the guide clamping part 5 clamps the fabric before the cutting action of the multi-layer fabric. After the intermittent clamping assembly 4 releases the multi-layer fabric laid out, the guide clamping part 5 obtains the tension change of the clamped fabric, and the angle spring member 6 drives the guide clamping part 5 to swing. That is, before the intermittent clamping assembly 4 releases the clamped multi-layer fabric, each piece of fabric close to the intermittent clamping assembly 4 is clamped independently. In this way, after the intermittent clamping assembly 4 releases the clamped multi-layer fabric, the change of each piece of fabric can be obtained.

[0046] At this time, the feed unit 3 drives the fabric roll on the fabric roll placement unit 2 to actively convey the fabric roll according to the rotation angle of the angle spring member 6, so that the guide clamping unit 5 returns to its initial position and releases the fabric, completing the differentiated adjustment process for each fabric.

[0047] A guide roller is necessary between the fabric roll placement section and the guide clamping section 5 to guide the fabric transport, and its purpose also includes controlling the fabric tension. Therefore, multiple guide rollers 7 are provided between the multiple fabric roll placement sections 2 and the guide clamping section 5, with each guide roller 7 corresponding to a different guide clamping section 5. The fabric on the fabric roll placement section 2 passes over the guide roller 7. In addition to guiding the fabric, the guide roller 7 in this invention also serves to separate the fabric between the guide clamping section 5 and the intermittent clamping assembly 4, and to control the interaction of the forces affecting the fabric transport between the guide clamping section 5 and the fabric roll placement section, thereby accurately characterizing the changes in the fabric between the guide clamping section 5 and the intermittent clamping assembly 4.

[0048] In the process of implementing this technical solution, the following points also need to be considered:

[0049] 1) The weight ratio of the fabric between the guide clamping part 5 and the guide roller 7, and the fabric between the fabric roll placement part and the guide roller 7, that is, the weight (draping) of the fabric between the fabric roll placement part and the guide roller 7, will not pull the fabric between the guide clamping part 5 and the guide roller 7 to move after the intermittent clamping assembly 4 releases the multi-layer fabric.

[0050] 2) The rotational inertia of the fabric roll after being pulled by the traction body will not actively transport the fabric, which can effectively avoid contact between the feed part 3 and the fabric roll.

[0051] 3) The influence of the weight of the guide clamping part 5 on the state changes of the fabric during the stress release process is small or can be ignored under ideal conditions.

[0052] In other words, this invention lays the fabric in one go, and after cutting multiple layers of fabric, it detects and acquires the state of each layer of fabric to make active differential adjustments. In subsequent processes, no further adjustments are needed to ensure the stable delivery of multiple fabrics. Furthermore, in the subsequent cutting process, the deformation of the fabric during stress release is reduced or eliminated.

[0053] Specifically, the present invention provides one embodiment of the guide clamping part 5:

[0054] It includes a counterweight roller 51 and a clamping roller 52. The fabric forms a gap between the counterweight roller 51 and the clamping roller 52 for the fabric to pass through. The two ends of the counterweight roller 51 are connected to the frame 1 through the angle spring member 6, and the clamping roller 52 is connected to the angle spring member 6 through the drive unit 53.

[0055] The drive unit 53 is used to drive the counterweight roller 51 and the clamping roller 52 to move closer or further apart to clamp and release the fabric. Specifically, the drive unit 53 in this invention can be a miniature pneumatic cylinder or a linear motor.

[0056] The angle spring member 6 includes a rotating arm 61 with one end connected to the end of the counterweight roller 51, and the other end of the rotating arm 61 is connected to the frame 1 through a spiral spring member 62.

[0057] The spiral spring 62 is used to provide elastic swing of the rotating arm 61 when subjected to changes in the tension of the fabric roll, and to form a control signal for the feed section 3 to drive the fabric roll on the fabric roll placement section 2 to perform active conveying action.

[0058] The spiral spring component 62 includes a disc base 63 mounted on the frame 1 and a rotating spindle 64 rotatably mounted at the center of the disc base 63. A planar spiral spring 65 is mounted on the shaft of the rotating spindle 64. The inner ring of the planar spiral spring 65 is connected to the rotating spindle 64 and the inner ring of the planar spiral spring 65 is connected to the inner wall of the disc base 63.

[0059] The rotating arm 61 is connected to one end of the rotating spindle 64 along the radial direction of the rotating spindle 64. The other end of the rotating spindle 64 is connected to an angle decoder. The angle decoder is used to obtain the rotation angle of the rotating spindle 64 and to form a control signal for the feed unit 3 to drive the cloth roll on the cloth roll placement unit 2 to perform active feeding action.

[0060] Furthermore, since the intermittent clamping component 4 in this invention (equivalent to the cutting workbench of the existing multi-layer fabric spreading machine) needs to perform a clamping and releasing action on the multi-layer fabric entering the intermittent clamping component 4 after the multi-layer fabric is cut, the fabric between the guide clamping part 5 and the intermittent clamping component 4 must be in a state of no guidance or no tension. That is, the end of the fabric roll has the action of detaching from the intermittent clamping component 4, which is obviously not conducive to the intermittent clamping component 4 clamping the multi-layer fabric again and guiding the conveying.

[0061] Therefore, the present invention provides a specific embodiment of the intermittent clamping component 4:

[0062] It includes a base 41 and a clamping part 42 (the clamping part 42 can directly use the existing fabric clamping part of the fabric cutting workbench). The top of both sides of the clamping part 42 is connected to the base 41 through a rotating connector 43. An angle driving member 44 is provided on the base 41, and the output end of the angle driving member 44 is connected to the bottom of the intermittent clamping part 42.

[0063] The angle drive member 44 is used to drive the clamping part 42 to rotate around the rotating connector 43 toward the guide clamping part 5 after the clamping part 42 releases the multi-layer fabric.

[0064] The main difference between the intermittent clamping assembly 4 provided in this invention and the existing fabric cutting worktable is that the existing fabric cutting worktable is fixedly installed, and multi-layer fabric always passes through the fabric cutting worktable horizontally. In order to solve the problem of re-clamping the multi-layer fabric after release, the intermittent clamping assembly 4 in this invention allows the clamping part 42 to rotate (towards the direction of the guide clamping part 5) after the guide clamping part 5 clamps each piece of fabric, so that the clamping part 5 adapts to the changes in the fabric after being clamped by the guide clamping part 5.

[0065] certainly, Figure 1 The diagram only shows the relative positions of the guide clamping part 5 and the intermittent clamping component 4. In the actual design, the position of the intermittent clamping component 4 is lower than that of the guide clamping part 5. Specifically, the angle between the fabric and the vertical direction between each guide clamping part 5 and the intermittent clamping component 4 is an obtuse angle.

[0066] If, after the guide clamping part 5 clamps the fabric, the fabric between the guide clamping part 5 and the intermittent clamping assembly 4 hangs vertically under its own weight, then the angle drive member 44 will drive the clamping part 42 to rotate at an angle greater than 45°. Ideally, the rotation angle is 60° to 90°, which means that the hanging fabric should not fall out of the gap held by the clamping part 42 as much as possible, so as to facilitate the intermittent clamping assembly 4 to clamp it again.

[0067] Additionally, the angle driving component 44 in this invention is specifically one of a hydraulic cylinder or a pneumatic cylinder.

[0068] The feed unit 3 includes a bracket 31 mounted on the frame 1, and a drive roller 32 and a servo motor that drives the drive roller 32 to rotate are connected to the bracket 31.

[0069] The drive roller 32 contacts the point where the fabric detaches from the fabric roll. This contact ensures that tension changes in the fabric during transport do not affect the rotation of the fabric roll (since the fabric roll is mounted on a rotating shaft). Simultaneously, the drive roller 32 also prevents the inertial rolling of the fabric roll under the pulling action of the fabric pulling body from affecting the tension changes of the fabric during transport. This is especially important when the intermittent clamping assembly 4 releases multiple layers of fabric.

[0070] It should be noted that the counterweight roller 51 and the clamping roller 52 in this invention have the same diameter, and the diameter of the counterweight roller 51 and the clamping roller 52 is smaller than the diameter of the guide roller 7. The purpose is that in order to accurately obtain the surface tension change of the fabric, the weight of the counterweight roller 51 and the clamping roller 52 should be as small as possible (the mass of the rotating arm 61 should also be considered).

[0071] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A multi-layer adjustable automatic fabric spreading machine, comprising a frame (1), wherein the frame (1) is provided with a plurality of fabric roll placement parts (2), characterized in that, A feeding part (3) is provided on the side of each fabric roll placement part (2). The feeding part (3) contacts the fabric roll placed on the fabric roll placement part (2). The feeding part (3) is used to drive the fabric roll on the fabric roll placement part (2) to perform an active conveying action. The frame (1) is provided with an intermittent clamping component (4) at the fabric roll output end, and the fabric on the multiple fabric roll placement parts (2) is output in layers at the intermittent clamping component (4). The intermittent clamping component (4) is used to clamp the multi-layer fabric input to the intermittent clamping component (4) before the multi-layer fabric output at the fabric output end of the intermittent clamping component (4) is cut, and release the multi-layer fabric after the multi-layer fabric is cut. Multiple guide clamping parts (5) are provided between the intermittent clamping assembly (4) and the multiple fabric roll placement parts (2), and the guide clamping parts (5) correspond one-to-one with the fabric roll placement parts (2). The guide clamping parts (5) are connected to the frame (1) through the angle spring member (6), and the guide clamping parts (5) are used to give the fabric that bypasses and contacts the guide clamping parts (5) a vertically downward initial force. The guide clamping part (5) clamps the fabric before the cutting of the multi-layer fabric. After the intermittent clamping assembly (4) releases the multi-layer fabric output, the fabric clamped by the guide clamping part (5) experiences a change in tension, and the angle spring member (6) drives the guide clamping part (5) to swing. The feeding part (3) drives the cloth roll on the cloth roll placement part (2) to perform active conveying action according to the rotation angle of the angle spring member (6), so that the guide clamping part (5) returns to the initial position and the guide clamping part (5) releases the cloth.

2. The multi-layer adjustable automatic fabric spreading machine according to claim 1, characterized in that, Multiple guide rollers (7) are provided between the multiple fabric roll placement parts (2) and the guide clamping part (5). The guide rollers (7) correspond one-to-one with the guide clamping part (5), and the fabric on the fabric roll placement part (2) passes over the guide rollers (7).

3. The multi-layer adjustable automatic fabric spreading machine according to claim 2, characterized in that, The guide clamping part (5) includes a counterweight roller (51) and a clamping roller (52). A gap is formed between the counterweight roller (51) and the clamping roller (52) for the fabric to pass through. The two ends of the counterweight roller (51) are connected to the frame (1) through the angle spring member (6). The clamping roller (52) is connected to the angle spring member (6) through the drive part (53). The drive unit (53) is used to drive the counterweight roller (51) to move closer to or further away from the clamping roller (52) to achieve clamping and releasing of the fabric.

4. The multi-layer adjustable automatic fabric spreading machine according to claim 3, characterized in that, The angle spring (6) includes a rotating arm (61) with one end connected to the end of the counterweight roller (51), and the other end of the rotating arm (61) is connected to the frame (1) through a spiral spring (62). The spiral spring (62) is used to provide elastic swing of the rotating arm (61) when subjected to the tension change of the fabric roll, and to form a control signal for the feed part (3) to drive the fabric roll on the fabric roll placement part (2) to perform active conveying action.

5. The multi-layer adjustable automatic fabric spreading machine according to claim 4, characterized in that, The spiral spring component (62) includes a disc base (63) disposed on the frame (1) and a rotating spindle (64) rotatably mounted at the center of the disc base (63). A planar spiral spring (65) is fitted on the shaft of the rotating spindle (64). The inner ring of the planar spiral spring (65) is connected to the rotating spindle (64), and the outer ring of the planar spiral spring (65) is connected to the inner wall of the disc base (63).

6. The multi-layer adjustable automatic fabric spreading machine according to claim 5, characterized in that, The rotating arm (61) is connected to one end of the rotating spindle (64) along the radial direction. The other end of the rotating spindle (64) is connected to an angle decoder. The angle decoder is used to obtain the rotation angle of the rotating spindle (64) and form a control signal for the feed part (3) to drive the cloth roll on the cloth roll placement part (2) to perform active conveying action.

7. The multi-layer adjustable automatic fabric spreading machine according to claim 1, characterized in that, The intermittent clamping assembly (4) includes a base (41) and a clamping part (42). The top of both sides of the clamping part (42) are connected to the base (41) through a rotating connector (43). An angle driving member (44) is provided on the base (41), and the output end of the angle driving member (44) is connected to the bottom of the clamping part (42). The angle drive member (44) is used to drive the clamping part (42) to rotate around the rotating connector (43) toward the guide clamping part (5) after the clamping part (42) releases the multilayer fabric.

8. The multi-layer adjustable automatic fabric spreading machine according to claim 1, characterized in that, The feed unit (3) includes a bracket (31) mounted on the frame (1), and a drive roller (32) and a servo motor that drives the drive roller (32) to rotate are connected to the bracket (31); The active roller (32) contacts the position where the fabric is separated from the fabric roll.

9. The multi-layer adjustable automatic fabric spreading machine according to claim 3, characterized in that, The counterweight roller (51) and the clamping roller (52) have the same diameter, and the diameters of the counterweight roller (51) and the clamping roller (52) are smaller than the diameter of the guide roller (7).

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