Cloth flattening and cutting device and working method thereof

Abstract

This invention discloses a fabric flattening and cutting device and its working method. The fabric flattening and cutting device includes a pad, a plurality of first clamping mechanisms arranged along the width direction of the pad, a flattening mechanism for driving the first clamping mechanisms, and a second clamping mechanism arranged interlaced with the first clamping mechanisms along the width direction of the pad. The pad has a plurality of U-shaped through slots along its width direction, the U-shaped through slots penetrating the pad vertically and vertically with their openings facing the first clamping mechanisms. The first clamping mechanisms correspond one-to-one with the U-shaped through slots. The opening height of the second clamping mechanism is greater than the sum of the thickness of the pad and the thickness of the fabric. A laser cutting mechanism is provided above the pad, and the cutting path of the laser cutting mechanism is located above the U-shaped through slots, realizing dynamic reconstruction of the clamping area and balancing front-end release and stable body holding.

Description

Technical Field

[0001] This invention relates to the field of fabric processing equipment technology, and in particular to a fabric flattening and cutting device and its working method. Background Technology

[0002] In garment production, fabric cutting is a crucial process that determines the dimensional accuracy and appearance quality of the finished product. Due to the inherent softness, wrinkle-proneness, and elasticity of fabrics, problems such as wrinkle rebound, edge misalignment, and layer displacement easily occur during the flattening and cutting process. This leads to dimensional deviations in the cut pieces, significant material waste, and difficulties in subsequent sewing processes. Hat production, in particular, involves curved cut pieces, multi-layered composite fabrics, and elastic knitted fabrics, placing even higher demands on the uniformity of tension during the flattening process and the quality of the cut edges.

[0003] To address the aforementioned issues, various fabric flattening and cutting devices have been proposed in existing technologies. For example, pneumatic sprue clamps or mechanical grippers hold the front end of the fabric, and a belt module or lead screw drive mechanism pulls the fabric to achieve mechanized flattening; pressure rollers or plates are placed before the cutting station to pre-press and flatten the fabric, reducing surface wrinkles; simultaneously, laser cutting technology is used to replace traditional blade cutting to improve cutting speed and cut smoothness. These technologies have, to a certain extent, achieved the mechanization and automation of fabric flattening and cutting, improving production efficiency.

[0004] However, the aforementioned existing technical solutions still have many shortcomings in practical applications. First, the clamping mechanisms of existing devices are of a single type. Either they use point clamping, resulting in an insufficient clamping area, making the front end of the fabric prone to slippage or localized stretching deformation, or they use large-area pressure plate clamping, but the gap between the pressure plate and the pad is fixed, making it impossible to simultaneously address the pad interference problem when clamping the front end, and making it difficult to achieve the synergy of "small-area detachment of the front end" and "stable holding of the main body over a large area". Second, the flattening, cutting, and material changing processes are disconnected from each other. After the waste material is released from the front end clamping, it is necessary to completely return to the original point to reposition and clamp the next piece of fabric. The material changing idle distance is long, making it impossible to achieve continuous cyclic operation. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a fabric flattening and cutting device and its working method, which realizes dynamic reconstruction of the clamping area and takes into account both front-end detachment and stable body holding.

[0006] Technical solution:

[0007] A fabric flattening and cutting device includes a pad, a plurality of first clamping mechanisms arranged along the width direction of the pad, a flattening mechanism for driving the first clamping mechanisms, and second clamping mechanisms arranged interlaced with the first clamping mechanisms along the width direction of the pad. The pad has a plurality of U-shaped slots along its width direction, the U-shaped slots penetrating the pad vertically and with their openings facing the first clamping mechanisms. Each of the first clamping mechanisms corresponds to one of the U-shaped slots. The opening height of the second clamping mechanism is greater than the sum of the thickness of the pad and the thickness of the fabric. A laser cutting mechanism is located above the pad, with its cutting path positioned above the U-shaped slots.

[0008] Furthermore, the first clamping mechanism is a pneumatic sprue clamp.

[0009] Furthermore, the second clamping mechanism includes an openable upper clamping plate, a lower clamping plate, and a driving component. After the first clamping mechanism pulls the front end of the fabric out of the front edge of the pad, it closes and works with the first clamping mechanism to clamp the fabric.

[0010] Furthermore, the flattening mechanism includes symmetrically arranged belt modules, a synchronization control component, and a connecting frame. The synchronization control component includes a drive shaft, a coupling, and a drive motor. The drive motor is connected to the drive shaft via the coupling. The drive shaft connects to the belt modules on both sides. The connecting frame is mounted on the belt modules. Both the first clamping mechanism and the second clamping mechanism are mounted on the connecting frame.

[0011] Furthermore, it also includes a pressing mechanism, which includes two symmetrically arranged lifting cylinders and a fabric pressing frame. The fabric pressing frame is connected between the output ends of the two lifting cylinders and spans across the pad plate to press the fabric before cutting.

[0012] Furthermore, the laser cutting mechanism includes a transverse moving track, a traveling cylinder mounted on the transverse moving track, a mounting plate mounted on the traveling cylinder, and a laser cutting head mounted on the mounting plate. The traveling cylinder drives the laser cutting head to move along the width direction of the pad, and the cutting path is correspondingly set above the U-shaped through groove.

[0013] Furthermore, the clamping width of the first clamping mechanism is smaller than the groove width corresponding to the U-shaped through groove.

[0014] Furthermore, it also includes a PLC control system, which is electrically connected to the flattening mechanism, the first clamping mechanism, the second clamping mechanism, and the laser cutting mechanism, and is used to coordinate and control the timing of the actions of each mechanism.

[0015] A method for operating a fabric flattening and cutting device includes the following steps:

[0016] S1. Control the flattening mechanism to drive the first clamping mechanism and the second clamping mechanism to move synchronously toward the pad, so that each first clamping mechanism extends into the corresponding U-shaped through groove, and at the same time, the upper and lower clamping plates of each second clamping mechanism extend into the upper and lower parts of the pad respectively.

[0017] S2. Control the first clamping mechanism to clamp the front end of the fabric in the U-shaped through groove;

[0018] S3. Control the flattening mechanism to move in the opposite direction, so that the first clamping mechanism pulls the front end of the fabric out of the front edge of the pad.

[0019] S4. Control the second clamping mechanism to close and press the fabric, and clamp it in conjunction with the first clamping mechanism.

[0020] S5. Control the leveling mechanism to continue moving to complete the leveling of the fabric;

[0021] S6. Control the laser cutting mechanism to cut the fabric along the top of the U-shaped groove.

[0022] S7. Repeat S1-S6 above.

[0023] Furthermore, between steps S5 and S6, the following step is also included: the lifting cylinder of the control pressing mechanism drives the fabric pressing frame to descend, pressing the fabric on the pad.

[0024] The principle and main inventive point of this invention are as follows: The first clamping mechanism adopts a point-gripping form (such as a pneumatic sprue clamp), and its clamping width is smaller than the width of the U-shaped through groove, allowing it to extend into the interior of the vertically penetrating U-shaped through groove to clamp the front end of the fabric within the groove. Simultaneously, the second clamping mechanism, staggered with the first clamping mechanism, adopts a long strip-shaped pressure plate structure. Its opening height is greater than the sum of the thickness of the pad and the fabric thickness, allowing it to simultaneously extend into the upper and lower areas of the pad and the main body of the fabric while the first clamping mechanism extends into the U-shaped through groove. However, at this time, the second clamping mechanism is in an open state, with a gap between the upper and lower clamping plates greater than the total thickness of the pad and the fabric, allowing it to cross the pad without contacting the fabric, merely completing the positioning and waiting process. Subsequently, the first clamping mechanism pulls the front end of the fabric out of the front edge of the pad, causing the main body of the fabric to detach from the physical support of the pad; only then does the second clamping mechanism close its clamping grip, performing a large-area strip-shaped clamping of the fabric body that has detached from the pad. Therefore, during the fabric pulling process, the front end of the fabric is anchored at points by the first clamping mechanism, and the main body is stably constrained over a large area by the second clamping mechanism. The two form a coordinated clamping from the point-like pull-out of the front end to the strip-like relay of the main body, which not only ensures that the front end can be smoothly pulled out from the pad, but also ensures that there is sufficient clamping area and tension uniformity during the fabric pulling process.

[0025] Beneficial effects:

[0026] 1. Dynamic reconstruction of the clamping area is achieved, balancing front-end detachment with stable body holding. Through the staggered arrangement and coordinated action of the first and second clamping mechanisms, the first clamping mechanism extends into the U-shaped through-slot to perform point-like clamping of the fabric's front end, detaching it from the pad and effectively preventing motion interference with the pad. During fabric pulling, the first and second clamping mechanisms form a distributed clamping area much larger than a single point-like clamping, significantly improving clamping stability, preventing fabric slippage or localized stretching deformation, and adapting to the clamping needs of fabrics of varying thicknesses.

[0027] 2. Zero-travel continuous cycle operation for flattening and cutting is achieved. Since the first clamping mechanism corresponds one-to-one with the U-shaped channel, and the laser cutting path is located above the U-shaped channel, the clamping, flattening, cutting, and waste release of the fabric front end are all completed in the same spatial area. After cutting, the first clamping mechanism can directly retract to the rear station of the U-shaped channel to connect with the front end of the next piece of fabric, with the second clamping mechanism working synchronously. This eliminates the material changeover idle time required for the clamping mechanism to completely retract to its original position in traditional devices, significantly improving continuous production efficiency.

[0028] 3. The second clamping mechanism adopts a pressure plate structure, spanning the width of the main body of the fabric. It works in conjunction with the first clamping mechanism to achieve multi-point distributed collaborative clamping in the width direction, which can effectively balance the tension distribution during the start-up phase of elastic fabric pulling and reduce shrinkage deformation. At the same time, the large-area pressing effect significantly increases the interlayer positive pressure of the multi-layer composite fabric, prevents relative slippage between layers, ensures consistent alignment of the cut seams of each layer, and improves the dimensional accuracy of the cut pieces. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention;

[0030] Figure 2 This is an enlarged schematic diagram showing the positions of the U-shaped through groove, the first clamping mechanism, and the second clamping mechanism of the present invention;

[0031] Figure 3 This is an enlarged schematic diagram showing the position of the laser cutting mechanism of the present invention;

[0032] Figure 4 This is an enlarged schematic diagram showing the position of the flattening mechanism of the present invention;

[0033] Figure 5 This is an enlarged schematic diagram of the position of the clamping mechanism of the present invention. Detailed Implementation

[0034] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] like Figures 1-5As shown, a fabric flattening and cutting device includes a pad 1, a plurality of first clamping mechanisms 2 arranged along the width direction of the pad 1, a flattening mechanism 3 for driving the first clamping mechanisms 2, and second clamping mechanisms 4 arranged interlaced with the first clamping mechanisms 2 along the width direction of the pad 1. The pad 1 has a plurality of U-shaped grooves 5 arranged along its width direction, the U-shaped grooves 5 penetrating the pad 1 vertically with their openings facing the first clamping mechanisms 2. Each of the first clamping mechanisms 2 corresponds to one of the U-shaped grooves 5. The opening height of the second clamping mechanism 4 is greater than the sum of the thickness of the pad 1 and the thickness of the fabric. A laser cutting mechanism 6 is provided above the pad 1, and the cutting path of the laser cutting mechanism 6 is located above the U-shaped grooves 5. The U-shaped grooves 5 penetrating the pad 1 vertically form an open channel running through the front and back, providing a spatial basis for the first clamping mechanisms 2 to reach down and clamp, while the groove openings facing the first clamping mechanisms 2 allow the front end of the fabric to be smoothly guided into the clamping area. The opening height of the second clamping mechanism 4 is greater than the sum of the thickness of the pad 1 and the thickness of the fabric. This dimensional relationship allows the second clamping mechanism 4 to be positioned above and below the pad 1 respectively when initially in place without making physical contact with the pad 1 and the fabric, only forming a spanning space occupation. The closing clamping is then implemented after the first clamping mechanism 2 completes the pull-out action.

[0037] The first clamping mechanism 2 is a pneumatic sprue clamp. Powered by compressed air, the pneumatic sprue clamp opens and closes via the rapid extension and retraction of a cylinder piston, offering a short response time and precise adjustment of the clamping force via a pneumatic valve. Its narrow, elongated shape is adapted to the narrow space of the U-shaped channel 5, allowing it to deeply clamp the front edge of the fabric, providing reliable point-like anchoring force for subsequently pulling the fabric front edge off the pad 1.

[0038] The second clamping mechanism 4 includes an openable upper clamping plate, a lower clamping plate, and a driving component. It closes after the first clamping mechanism 2 pulls the front end of the fabric out of the front edge of the pad 1, thus working in conjunction with the first clamping mechanism 2 to clamp the fabric. Before the first clamping mechanism 2 performs the pull-out action, the upper and lower clamping plates of the second clamping mechanism 4 remain open, positioned above the upper surface and below the lower surface of the pad 1, respectively. The opening height is greater than the sum of the thickness of the pad 1 and the fabric, creating a gap that ensures no contact or interference with the fabric or pad 1 during this stage. When the first clamping mechanism 2 pulls the front end of the fabric out of the front edge of the pad 1, the main body of the fabric is completely detached from the physical support of the pad 1. At this point, the driving component drives the upper and lower clamping plates to close, clamping the main body of the fabric in a long, wide area from the width direction. This forms a relay pattern with the point-like clamping of the first clamping mechanism 2, significantly increasing the effective clamping area and improving the tension uniformity in the width direction during fabric pulling.

[0039] The flattening mechanism 3 includes symmetrically arranged belt modules 31, a synchronization control component 32, and a connecting frame 33. The synchronization control component 32 includes a drive shaft 321, a coupling 322, and a drive motor 323. The drive motor 323 is connected to the drive shaft 321 via the coupling 322. The drive shaft 321 connects to the belt modules 31 on both sides. The connecting frame 33 is mounted on the belt modules 31. The first clamping mechanism 2 and the second clamping mechanism 4 are both mounted on the connecting frame 33. The torque output by the drive motor 323 is transmitted to the drive shaft 321 via the coupling 322. The drive shaft 321 spans both sides of the device and synchronously distributes the rotational motion to the symmetrically arranged belt modules 31, so that the belt modules 31 on both sides drive the connecting frame 33 to run at the same speed and displacement. The connecting frame 33 serves as a common mounting base for the first clamping mechanism 2 and the second clamping mechanism 4, ensuring that they maintain a fixed relative position during the fabric pulling process, and preventing the fabric from shifting or twisting laterally due to asynchronous clamping points on both sides.

[0040] The fabric flattening and cutting device also includes a pressing mechanism 7, which comprises two symmetrically arranged lifting cylinders 71 and a fabric pressing frame 72. The fabric pressing frame 72 is connected between the output ends of the two lifting cylinders 71 and spans across the pad 1 to press the fabric before cutting. The two lifting cylinders 71 are symmetrically arranged on both sides of the pad 1. When their piston rods extend synchronously, they drive the fabric pressing frame 72 to descend as a whole, so that the bottom surface of the fabric pressing frame 72 is evenly pressed against the flattened fabric body on the pad 1. This pressing action is completed before the laser cutting mechanism 6 emits light. By applying a positive pressure perpendicular to the surface of the pad 1, local gaps and micro-wrinkles between the fabric and the pad 1 are eliminated, and the fabric is prevented from shifting due to thermal stress release or auxiliary gas blowing during laser cutting, thereby ensuring the geometric accuracy of the cut.

[0041] The laser cutting mechanism 6 includes a transverse moving track 61, a traveling cylinder 62 mounted on the transverse moving track 61, a mounting plate 63 mounted on the traveling cylinder 62, and a laser cutting head 64 mounted on the mounting plate 63. The traveling cylinder 62 drives the laser cutting head 64 to move along the width direction of the pad 1, and the cutting path is correspondingly set above the U-shaped through groove 5. The traveling cylinder 62, as a transverse feed drive unit, carries the mounting plate 63 and the laser cutting head 64 in a linear reciprocating motion along the transverse moving track 61, so that the laser beam scans along a preset trajectory in the width direction of the pad 1.

[0042] The clamping width of the first clamping mechanism 2 is less than the width of the corresponding U-shaped through groove 5. A gap is left between the clamping width of the first clamping mechanism 2 and the width of the U-shaped through groove 5.

[0043] The fabric flattening and cutting device also includes a PLC control system. The PLC control system is electrically connected to the flattening mechanism 3, the first clamping mechanism 2, the second clamping mechanism 4, and the laser cutting mechanism 6, and is used to coordinate and control the timing of the actions of each mechanism. The PLC control system establishes signal connections with the drive motor 323 of the flattening mechanism 3, the pneumatic solenoid valve of the first clamping mechanism 2, the drive component of the second clamping mechanism 4, and the laser and traveling cylinder 62 of the laser cutting mechanism 6 through I / O ports, and issues enable commands sequentially according to the preset process rhythm. By setting the action delay and interlock relationship of each execution unit through the program, the clamping of the first clamping mechanism 2, the forward and backward movement of the flattening mechanism 3, the delayed closing of the second clamping mechanism 4, the lifting and lowering of the pressing mechanism 7, and the light output scanning of the laser cutting mechanism 6 form a strict time sequence, realizing fully automatic closed-loop control from fabric feeding, front-end clamping, coordinated flattening, table pressing to laser cutting, and can continuously complete the flattening and cutting of multiple pieces of fabric without manual intervention.

[0044] Example 2

[0045] The following method embodiments correspond to the above device embodiments. Through the organic connection of the steps, the point-like pulling action of the first clamping mechanism 2 and the strip-like relay clamping action of the second clamping mechanism 4 are decoupled and recombined in the time dimension, so that the fabric can obtain a large area of ​​clamping constraint the moment it leaves the physical support of the pad plate 1. At the same time, the spatial characteristics of the U-shaped through groove 5 are used to integrate cutting, blanking and connecting the previous and subsequent batches into the same work station, forming a zero-idle cycle operation mode.

[0046] A method for operating a fabric flattening and cutting device includes the following steps:

[0047] S1. The control leveling mechanism 3 drives the first clamping mechanism 2 and the second clamping mechanism 4 to move synchronously toward the pad 1, so that each first clamping mechanism 2 extends into the corresponding U-shaped through groove 5, and at the same time, the upper and lower clamping plates of each second clamping mechanism 4 extend into the upper and lower parts of the pad 1 respectively. In this step, the leveling mechanism 3 drives the connecting frame 33 to move forward as a whole, the first clamping mechanism 2 extends into the groove along the groove opening of the U-shaped through groove 5, and the upper and lower clamping plates of the second clamping mechanism 4 cross over to the upper and lower parts of the pad 1 respectively. The two complete the spatial positioning synchronously but do not interfere with each other, thus establishing the initial spatial conditions for subsequent time-sharing clamping.

[0048] S2. Control the first clamping mechanism 2 to clamp the front end of the fabric in the U-shaped through groove 5; the first clamping mechanism 2 closes inside the U-shaped through groove 5 to partially clamp the edge of the front end of the fabric, and uses the rapid response characteristics of pneumatic clamping to complete reliable anchoring in the groove. At this time, the front end of the fabric has not yet been displaced and is still in a natural placement state on the table of the pad 1.

[0049] S3. Control the flattening mechanism 3 to move in the opposite direction, so that the first clamping mechanism 2 pulls the front end of the fabric out of the front edge of the pad 1; the flattening mechanism 3 rotates in the opposite direction, and the connecting frame 33 drives the first clamping mechanism 2 to move backward. Under the traction of the first clamping mechanism 2, the front end of the fabric is pulled out from the U-shaped through groove 5 and gradually separates from the front edge of the pad 1.

[0050] S4. Control the second clamping mechanism 4 to close and press the fabric, cooperating with the first clamping mechanism 2 to clamp it; after the main body of the fabric has completely detached from the pad 1, the second clamping mechanism 4 performs the closing action, and the upper and lower clamping plates simultaneously press the main body of the fabric from the upper and lower sides, forming a front-to-back distributed clamping with the first clamping mechanism 2. At this time, the first clamping mechanism 2 continues to perform the front-end anchoring function, while the second clamping mechanism 4 performs the function of clamping the main body over a large area. The clamping areas of the two are connected front and back in the fabric pulling direction, effectively dispersing the stress concentration of single-point clamping and reducing the risk of the front end of the fabric being pulled off or partially torn.

[0051] S5. Control the flattening mechanism 3 to continue moving to complete the fabric flattening; the flattening mechanism 3 continues to retreat, and the first clamping mechanism 2 and the second clamping mechanism 4 move in coordination at the same speed and with a fixed relative distance, smoothly pulling the fabric from the unwinding end to the cutting end. Because the long strip-shaped clamping surface of the second clamping mechanism 4 is evenly distributed in the width direction, the tension on the main body of the fabric during the fabric pulling process tends to be consistent along the width direction, effectively suppressing the wrinkles caused by the shrinkage of elastic fabric, so that the fabric remains flat and taut when it reaches the cutting station.

[0052] S6. Control the laser cutting mechanism 6 to cut the fabric above the U-shaped through groove 5. The laser cutting mechanism 6 is started after the fabric is flattened. The laser cutting head 64 moves along the transverse moving track 61 and emits a laser beam to perform penetrating cut on the fabric above the U-shaped through groove 5.

[0053] S7. Repeat S1-S6 above. After a single cut is completed, the PLC control system controls each mechanism to reset and repeat S1 to S6. The first clamping mechanism 2 does not need to return to the initial origin. It only needs to clamp the front end of the next piece of fabric again at the rear station of the U-shaped through groove 5. The second clamping mechanism 4 opens synchronously and stands on both sides of the pad 1 again. There is no idle waiting between batches, realizing continuous cyclic flattening and cutting.

[0054] Furthermore, between steps S5 and S6, the following step is also included: controlling the lifting cylinder 71 of the pressing mechanism 7 to lower the fabric pressing frame 72, pressing the fabric on the pad 1. After the fabric is flattened and before the laser beam is emitted, the lifting cylinder 71 of the pressing mechanism 7 lowers the fabric pressing frame 72, applying an overall pressing force from above the fabric body, so that the fabric fits tightly against the surface of the pad 1 at the moment of cutting, further eliminating micro-undulations. Combined with the suspended cutting characteristics above the U-shaped through groove 5, this ensures the quality of the cut edge while preventing thermal deformation and displacement of the fabric.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A fabric flattening and cutting device, characterized in that, The device includes a pad (1), a plurality of first clamping mechanisms (2) arranged along the width direction of the pad (1), a flattening mechanism (3) for driving the first clamping mechanisms (2), and a second clamping mechanism (4) arranged interlaced with the first clamping mechanisms (2) along the width direction of the pad (1). The pad (1) is provided with a plurality of U-shaped through grooves (5) along the width direction. The U-shaped through grooves (5) penetrate the pad (1) vertically and their openings face the first clamping mechanisms (2). The first clamping mechanisms (2) correspond one-to-one with the U-shaped through grooves (5). The opening height of the second clamping mechanism (4) is greater than the sum of the thickness of the pad (1) and the thickness of the fabric. A laser cutting mechanism (6) is provided above the pad (1). The cutting path of the laser cutting mechanism (6) is located above the U-shaped through grooves (5).

2. The fabric flattening and cutting device according to claim 1, characterized in that, The first clamping mechanism (2) is a pneumatic sprue clamp.

3. The fabric flattening and cutting device according to claim 1, characterized in that, The second clamping mechanism (4) includes an openable upper clamping plate, a lower clamping plate, and a driving component. After the first clamping mechanism (2) pulls the front end of the fabric out of the front edge of the pad (1), it closes and works with the first clamping mechanism (2) to clamp the fabric.

4. The fabric flattening and cutting device according to claim 1, characterized in that, The flattening mechanism (3) includes symmetrically arranged belt modules (31), a synchronous control component (32), and a connecting frame (33). The synchronous control component (32) includes a drive shaft (321), a coupling (322), and a drive motor (323). The drive motor (323) is connected to the drive shaft (321) through the coupling (322). The drive shaft (321) is connected to the belt modules (31) on both sides. The connecting frame (33) is installed on the belt modules (31). The first clamping mechanism (2) and the second clamping mechanism (4) are both installed on the connecting frame (33).

5. The fabric flattening and cutting device according to claim 1, characterized in that, It also includes a pressing mechanism (7), which includes two symmetrically arranged lifting cylinders (71) and a fabric pressing frame (72). The fabric pressing frame (72) is connected between the output ends of the two lifting cylinders (71) and spans across the pad (1) to press the fabric before cutting.

6. The fabric flattening and cutting device according to claim 1, characterized in that, The laser cutting mechanism (6) includes a transverse moving track (61), a traveling cylinder (62) mounted on the transverse moving track (61), a mounting plate (63) mounted on the traveling cylinder (62), and a laser cutting head (64) mounted on the mounting plate (63). The traveling cylinder (62) drives the laser cutting head (64) to move along the width direction of the pad (1), and the cutting path is correspondingly set above the U-shaped through groove (5).

7. The fabric flattening and cutting device according to claim 1, characterized in that, The clamping width of the first clamping mechanism (2) is less than the groove width of the corresponding U-shaped through groove (5).

8. The fabric flattening and cutting device according to claim 1, characterized in that, It also includes a PLC control system, which is electrically connected to the flattening mechanism (3), the first clamping mechanism (2), the second clamping mechanism (4), and the laser cutting mechanism (6) to coordinate and control the timing of the actions of each mechanism.

9. A method of operating the fabric flattening and cutting device as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. The control flattening mechanism (3) drives the first clamping mechanism (2) and the second clamping mechanism (4) to move synchronously toward the pad (1), so that each first clamping mechanism (2) extends into the corresponding U-shaped through groove (5), and at the same time, the upper and lower clamping plates of each second clamping mechanism (4) extend into the upper and lower parts of the pad (1) respectively. S2. Control the first clamping mechanism (2) to clamp the front end of the fabric in the U-shaped through groove (5); S3. Control the flattening mechanism (3) to move in the opposite direction, so that the first clamping mechanism (2) pulls the front end of the fabric out of the front edge of the pad (1); S4. Control the second clamping mechanism (4) to close and press the fabric, and clamp it together with the first clamping mechanism (2); S5. Control the flattening mechanism (3) to continue moving and complete the flattening of the fabric; S6. Control the laser cutting mechanism (6) to cut the fabric above the U-shaped through groove (5); S7. Repeat S1-S6 above.

10. The working method of the fabric flattening and cutting device according to claim 9, characterized in that, Between steps S5 and S6, the following is also included: the lifting cylinder (71) of the control pressing mechanism (7) drives the pressing frame (72) to descend and press the fabric on the pad (1).

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