Light and thin fabric cutting device and method for cutting light and thin fabric through device

Abstract

The invention relates to a light and thin fabric cutting device which comprises a base, a workbench, pressure modules, a lifting module and a cutting tool, the workbench is installed on the top face of the base, the pressure modules are arranged above the workbench at intervals, one end of the lifting module is installed on the base, and the other end of the lifting module is fixedly connected with the pressure modules; a pressure space is formed between the pressure module and the workbench, the cutting tool is arranged at the pressure space and comprises a cutting edge, a back plate and an auxiliary block, the cutting edge is vertically installed on the plate face of the back plate, a protruding edge is formed on the plate face, the auxiliary block is made of flexible materials and fixedly connected to the plate face, protruding out of the plate face, of the cutting edge, and the height of the auxiliary block is larger than that of the cutting edge protruding out of the plate face. The multiple auxiliary blocks are arranged close to the cutting edge. The lifting module is matched with the base and the pressure module to form the pressure applying device, the cutting tool is matched with the position and the height of the auxiliary block through the set blade height, the pressure applying device provides pressure, and the edge of the cut light and thin fabric cannot be curled.

Description

Technical Field

[0001] The invention relates to the field of clothing fabric processing, in particular to a light and thin fabric cutting device and a method for cutting light and thin fabric using the device. Background Art

[0002] With the continuous development of society and the continuous improvement of people's living standards, people's requirements for the wearing experience of the clothes they wear are also constantly changing. More and more underwear or undergarments are made of light and thin fabrics to achieve breathable and seamless wearing requirements. However, the traditional cutting method for light and thin fabrics has the following problems: first, manual cutting is adopted. This cutting method usually uses a manual handheld cutting device to cut the fabric along the cutting line, which is time-consuming and labor-intensive, and has low cutting efficiency; another method is to use traditional cutting equipment. Because the light and thin fabrics are light and thin and have great elasticity, the edges of the fabrics will have different degrees of curling problems after cutting, which affects the subsequent use. In order to solve these problems, the present invention proposes a light and thin fabric cutting device that has both cutting efficiency and can ensure that the edges do not curl after cutting, and a method for cutting light and thin fabrics using the device. Summary of the invention

[0003] In order to solve the above technical problems, the present invention discloses a light and thin fabric cutting device, which includes a base, a workbench, a pressure module, a lifting module and a cutting tool. The workbench is installed on the top surface of the base to form a table surface on which the fabric can be spread. The pressure modules are arranged above the workbench at intervals. One end of the lifting module is installed on the base to form a fixed end, and the other end is fixedly connected to the pressure module, and can drive the pressure module to perform a lifting action close to or away from the workbench, forming a pressure space between the pressure module and the workbench. The cutting tool is arranged in the pressure space, and the cutting tool includes a blade, a back plate and an auxiliary block. The blade is upright installed on the plate surface of the back plate, and a protruding edge is formed on the plate surface. The auxiliary block is made of flexible material, fixedly connected to the plate surface of the back plate where the blade protrudes, and the height is higher than the height of the blade protruding from the plate surface. There are multiple auxiliary blocks, and they are arranged close to the blade.

[0004] Specifically, the pressure module includes a downward pressure controller and a pressure plate. The downward pressure controller is installed on the lifting module and is connected to the lifting module signal to control the lifting action of the lifting module. The pressure plate is arranged parallel to the table surface of the workbench and is installed on the bottom surface of the downward pressure controller facing the table surface of the workbench.

[0005] Specifically, a sleeve is provided on the downward pressure controller, and the sleeve is sleeved on the lifting end of the lifting module, and the top of the sleeve is blocked, forming an active mechanism in which the downward pressure controller can rotate at an angle with the lifting module as the rotating axis.

[0006] Specifically, the lifting module is a hydraulic lifting mechanism.

[0007] Specifically, a threaded central shaft is installed at the center of the top of the lifting module. The central shaft is arranged along the axial direction of the lifting module, and the end portion protrudes from the top edge of the sleeve. A top cover is installed on the top of the sleeve. The top cover is fixedly connected to the top edge of the sleeve, and a through hole is provided in the center for the central shaft to pass through. The height of the central shaft is greater than the height of the sleeve, and a protrusion is formed on the top surface of the top cover.

[0008] Specifically, the protruding portion on the central axis is threadedly connected with a handwheel, and the handwheel is fixedly connected to the through hole of the top cover through a bearing sleeve, forming a height adjustment mechanism that can drive the sleeve to press down the controller and the pressure plate along the lifting module by rotating the handwheel.

[0009] A method for cutting light and thin fabrics using a light and thin fabric cutting device, comprising the following steps

[0010] Step A: Turn on the power switch of the thin fabric cutting device and wait for the lifting module and the pressure module on the device to return to the initial position;

[0011] Step B: After the lifting module and the pressure module of the light and thin fabric cutting device return to the initial position, the light and thin fabric is spread on the table surface of the workbench and flattened;

[0012] Step D: Place the cutting tool on the flattened thin fabric on the table, with the blade facing downward and in contact with the surface of the fabric. The operator controls the lifting module to start through the downward pressure controller. The lifting module drives the pressing plate to press down toward the cutting tool. After contacting the back plate, it continues to press down, exerting pressure on the cutting tool, and the blade cuts the fabric, completing the fabric cutting.

[0013] Step E: After the fabric cutting is completed, the lifting module drives the downward pressure controller and the pressing plate back to the initial position, and then removes the cutting tool, the cut light and thin fabric and the cutting residue respectively to complete the light and thin fabric cutting.

[0014] Furthermore, it also includes step C: determining the thickness of the flattened thin fabric, calculating the height of the blade on the cutting tool according to the thickness, installing the blade with the calculated height on the back plate, and then determining the position of installing the auxiliary block according to the shape of the cutting line. If the straight line is cut, the auxiliary blocks are set to be arranged on both sides of the blade in a long strip shape. If the predetermined shape is cut, the auxiliary blocks are installed at the corner position of the shape. After the auxiliary blocks are installed, the cutting tool is obtained;

[0015] Furthermore, when cutting into a predetermined shape, the auxiliary block needs to be cooled before installation.

[0016] Specifically, the calculation formula for determining the tool height is:

[0017]

[0018] Where h is the height of the cutter (mm) and d is the thickness of the fabric (mm).

[0019] Advantages

[0020] The light and thin fabric cutting device of the patented invention forms a pressure device by using a lifting module in conjunction with a base and a pressure module. The pressure device is combined with the structure of the cutting tool in the invention to realize mechanized and rapid cutting of fabrics and improve work efficiency. In addition, the cutting tool of the invention provides pressure through the pressure device by setting the blade height and coordinating the position and height of the auxiliary block, so that the edges of the cut light and thin fabrics will not curl. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the thin fabric cutting device of the present invention;

[0022] Figure 2 This is the second structural schematic diagram of the thin fabric cutting device of the present invention;

[0023] Figure 3 It is one of the structural schematic diagrams of the cutting tool of the present invention;

[0024] Figure 4 This is the second structural schematic diagram of the cutting tool of the present invention.

[0025] Legend: 1. Base; 2. Workbench; 3. Pressure module; 31. Downward pressure controller; 32. Pressure plate; 33. Sleeve; 34. Top cover; 35. Hand wheel; 4. Lifting module; 41. Center axis; 5. Cutting tool; 51. Blade; 52. Back plate; 53. Auxiliary block; DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments, but is not limited to the contents of the description.

[0027] The present invention relates to a light and thin fabric cutting device. It should be noted that in the present invention, light and thin fabric refers to a single piece of fabric with a mass of 60g / m 2 The following fabrics, with a nylon content of about 60%, a spandex content of about 40%, and a single piece thickness of about 0.4-0.6mm, meet the above conditions and are called light and thin fabrics, such as Figure 1 and Figure 2As shown, the light and thin fabric cutting device includes a base 1, a workbench 2, a pressure module 3, a lifting module 4 and a cutting tool 5. The workbench 2 is installed on the top surface of the base 1 to form a table surface on which the fabric can be spread. The pressure modules 3 are arranged above the workbench 2 at intervals. One end of the lifting module 4 is installed on the base 1 to form a fixed end, and the other end is fixedly connected to the pressure module 3, and can drive the pressure module 3 to perform a lifting action close to or away from the workbench 2, so as to form a pressure space between the pressure module 3 and the workbench 2. The cutting tool 5 is arranged in the pressure space, and the cutting tool 5 includes a blade 51, a back plate 52 and an auxiliary block 53. The blade 51 is uprightly installed on the plate surface of the back plate 52, and a protruding edge is formed on the plate surface. The auxiliary block 53 is made of a flexible material and is fixedly connected to the plate surface of the back plate 52 where the blade 51 protrudes, and the height is higher than the height of the blade 51 protruding from the plate surface. There are multiple auxiliary blocks 53, and they are arranged close to the blade 51. The fabric cutting work is carried out on the workbench 2. The base 1 can provide stability for the device to ensure that the cutting can be carried out smoothly. During operation, the pressure module 3 is lifted and lowered by the lifting module 4. When it rises, the interval between the pressure module 3 and the plane of the workbench 2 increases, and when it falls, the interval decreases. The continuous downward trend provides the downward pressure of the pressure module 3 against the surface of the workbench 2. The pressure module 3 rises to a predetermined position, so that the height of the pressure space reaches a distance that can be used for material discharge and cutting operations. The predetermined position is set as the initial height of the pressure module 3, and the fabric to be cut is spread flat on the surface of the workbench 2. , at the position directly below the pressure module 3, place the cutting tool 5 on the fabric at that position, and after completion, operate and start the lifting module 4 to press the pressure module 3 downward. During the downward pressing process, the downward force is applied to the cutting tool 5, so that the cutting tool 5 cuts the fabric. The cutting work is completed when the fabric is cut, and the position where the fabric is cut is set as the lower stop position of the pressure module 3. After the cutting is completed, the pressure module 3 returns to the initial position, and then the cutting tool 5 is removed, and then the cut fabric and the excess fabric are removed, and the fabric to be cut is placed again, and the above-mentioned cutting operation is repeated to perform a working cycle; Figure 3 and Figure 4As shown, the cutting tool 5 uses a flat plate, and a protruding blade 51 is provided on the flat plate. For thin fabrics, it can be cut without causing the edge of the fabric to curl. The flat surface of the back plate 52 can increase more pressure area when the pressure module 3 is pressed down, and provide an installation position for the blade 51, so that the blade 51 can be evenly stressed when it is pressed. At the same time, compared with directly using an upright tool to press down and cut, it can ensure that the blade 51 will not tilt during cutting, and damage to the tool can be avoided. The auxiliary block 53 can use a silicone block, a rubber block or a deformable plastic block. The auxiliary block 53 can provide a buffer, and the setting higher than the blade height can enable it to press the fabric first when pressing down to prevent it from moving and deviating. The use of flexible material for the auxiliary block 53 will not affect the downward pressing and cutting work of the blade. In addition, the setting position of the auxiliary block 53, the height of the auxiliary block 53, and the height of the blade of the tool protruding from the plate surface will jointly affect the state of the edge of the fabric after cutting the thin fabric. The downward pressure of the cutting device, the relative position of the auxiliary block 53 and the blade on the back plate, and the height of the auxiliary block and the blade themselves work together to achieve a curling-free edge effect on the thin fabric after cutting.

[0028] The pressure module 3 includes a downward pressure controller 31 and a pressure plate 32. The downward pressure controller 31 is installed on the lifting module 4 and is connected to the lifting module 4 by signal, and can control the lifting action of the lifting module 4. The pressure plate 32 is arranged parallel to the table surface of the workbench 2 and is installed on the bottom surface of the downward pressure controller 31 facing the table surface of the workbench 2. The downward pressure controller 31 is installed at the end position of the lifting module 4, and the control panel faces upward, which is convenient for the operator to perform control operations. The pressure plate 32 is arranged below and is used to contact with the back plate 52 and apply downward pressure. The contact area between the plate surfaces is large, and the back plate 52 can be stabilized during the downward pressure process; specifically, the control operation on the downward pressure controller 31 is realized by a two-hand synchronous operating rod, which is a fixed upright rod. A two-hand synchronous button switch is set at the top of the operating rod to realize the lifting and lowering start action of the lifting module 4. After the synchronous switch is pressed, the lifting module 4 starts and drives the pressure module 3 to descend to the set position and stop. After releasing the synchronous switch button, the lifting module 4 returns to the initial position. The use of a two-hand synchronous switch can ensure the safety of the operator.

[0029] The pressing controller 31 is provided with a sleeve 33, and is sleeved on the lifting end of the lifting module 4 through the sleeve 33, and the top of the sleeve 33 is blocked, forming a movable mechanism with the lifting module 4 as the rotating axis, and the pressing controller 31 can rotate at an angle. By using the sleeve structure, the pressing controller 31 is easy to adjust the position, such as the left and right angles, which is convenient for increasing the control of the pressing position during the use of the device, and the angle can be changed by holding the synchronous operating lever with both hands.

[0030] In the patent of the present invention, the lifting module 4 is a hydraulic lifting mechanism, which has a stable lifting speed during the lifting process, and can provide a wide range of optional pressures and wide applicability. The stable characteristics of the lifting mechanism are used in the device for cutting fabrics of the present invention and can be installed behind the base to reduce the risk of the lifting mechanism being installed directly above the table to form a hydraulic punch, and the grease of the equipment dripping and contaminating the fabric. In addition, when the device is pressed down, the force is not applied at the center position of the lifting device, but at the offset position of the pressure module 3. Other conventional or high-precision lifting structures have a shortened maintenance interval due to the problem of force offset. The hydraulic lifting mechanism has a simple structure and is easy to maintain.

[0031] A threaded central shaft 41 is installed at the center of the top of the lifting module 4. The central shaft 41 is arranged along the axial direction of the lifting module 4, and the end portion protrudes from the top edge of the sleeve 33. A top cover 34 is installed on the top of the sleeve 33. The top cover 34 is fixedly connected to the top edge of the sleeve 33, and a through hole is provided in the center for the central shaft 41 to pass through. The height of the central shaft 41 is greater than the height of the sleeve 33, and a protrusion is formed on the top surface of the top cover 34; the protrusion on the central shaft 41 is threadedly connected with a hand wheel 35, and the hand wheel 35 is fixedly connected to the through hole of the top cover 34 through a bearing sleeve, forming a height adjustment mechanism that can drive the sleeve 33 to perform lifting and lowering actions along the lifting module 4 by rotating the hand wheel 35, in conjunction with the downward pressure controller 31 and the pressure plate 32. When in use, by turning the hand wheel 35, the pressure controller 31 and the pressure plate 32 can be driven to rise and fall together, because the top cover 34 and the sleeve 33 are fixed, and the hand wheel 35 is fixed to the top cover 34 by the bearing sleeve, but due to the existence of the bearing sleeve, the hand wheel 35 can still rotate, and the sleeve 33 is sleeved with the lifting module 4 and can slide on the lifting module 4. After turning the hand wheel 35, the hand wheel 35 can move up and down through the thread on the central shaft 41, and at the same time drive the entire pressure controller 31 and the pressure plate 32 to move up and down together to achieve the fine-tuning function, because the lowering position of the lifting module 4 is set, and the table position of the workbench 2 is fixed, in order to adapt to tools of different heights, by adjusting the hand wheel, the pressure plate 32 can rise or fall to a certain height, so that the interval between the pressure plate and the table can change when it is pressed down to the predetermined position, thereby improving the use range of the tool.

[0032] A method for cutting thin fabrics using the thin fabric cutting device comprises the following steps:

[0033] Step A: Turn on the power switch of the thin fabric cutting device and wait for the lifting module 4 and the pressure module 3 on the device to return to the initial position;

[0034] Step B: After the lifting module 4 and the pressure module 3 of the light and thin fabric cutting device return to the initial position, the light and thin fabric is spread on the table surface of the workbench 2 and flattened;

[0035] Step C: Determine the thickness of the flattened thin fabric, calculate the height of the blade 51 on the cutting tool 5 according to the thickness, install the blade 51 with the calculated height on the back plate 52, and then determine the number and position of the auxiliary blocks to be installed according to the shape of the cutting line. If it is a straight line cutting, the auxiliary blocks 53 are set to be long strips on both sides of the blade, and no pre-processing of the auxiliary blocks is required. If it is a predetermined shape cutting, the auxiliary blocks 53 are installed at the corner position of the shape. It should be noted that when cutting a predetermined shape, especially the shape

[0036] Example 1

[0037] The thin fabric cutting device of the present invention is used to perform linear cutting on the thin fabric, and the fabric cutting is completed according to the steps A to E of the present invention to obtain the cut thin fabric.

[0038] Example 2

[0039] The thin fabric cutting device described above is used to cut the thin fabric into a predetermined shape, specifically the shape of a bra piece of a vest-type bra. The fabric cutting is completed according to the steps A to E described above in the present invention. In step C, the auxiliary block is cooled and then installed on the cutter, and subsequent cutting steps are performed to obtain the cut thin fabric.

[0040] Comparative Example 1

[0041] This comparative example is basically the same as Example 1, except that no auxiliary block is provided on the cutting tool used in this comparative example, so that a cut thin fabric is obtained.

[0042] Comparative Example 2

[0043] This comparative example is basically the same as Example 1, except that the cutting tool used in this comparative example does not use the calculation formula between the blade height and the fabric thickness of the present invention, but sets the blade height to be the same as the fabric thickness to obtain a cut thin fabric.

[0044] Comparative Example 3

[0045] This comparative example uses conventional cutting equipment to cut the light and thin fabrics in the present invention (a Dingniu DN series intelligent cutting machine is used in this comparative example) to obtain cut light and thin fabrics.

[0046] Comparative Example 4

[0047] This comparative example is basically the same as Example 2, except that the auxiliary block installed on the cutting tool used in this comparative example is not subjected to cooling pretreatment, and the auxiliary block at room temperature is directly installed on the back plate of the tool to perform cutting operations to obtain cut thin fabrics.

[0048] Comparative Example 5

[0049] This comparative example is basically the same as Example 2, except that the cutting tool used in this comparative example does not use the calculation formula between the blade height and the fabric thickness of the present invention, but sets the blade height to be the same as the fabric thickness to obtain a cut thin fabric.

[0050] The cut thin fabrics obtained in the above embodiments and comparative examples were observed and compared. The comparison results are shown in Table 1.

[0051] Table 1

[0052]

[0053] Note: The corners of the pieces in the above table refer to the pieces cut into preset shapes, and the corners of the shapes are approximately: corners (sharp corners or arc angles) of about 0°-150°; the remaining straight edges, arc edges, and two edges of large angle edges of the piece outline are called "long straight edges"

[0054] From the fabric state in Table 1, it can be seen that by using the light and thin fabric cutting device of the present invention and the cutting method used in the present invention, the edges of the cut fabrics are neat and there is no deformation problem, and there is no curling phenomenon at the edges of the cut light and thin fabrics; however, when the same cutting tool is used and the auxiliary block installed on the cutting tool is cancelled, the cutting device of the present invention is used to press down and cut, and the cut fabrics are flattened one by one. After measurement and comparison, the fabric size and lines obtained by the cutting of this comparative example meet the requirements, and it can be seen that the cutting is accurate, but when the fabric is in a naturally spread state, the edges of the light and thin fabrics will curl up, and the edges will return to the curled state after being flattened and released, but the curling degree of the edges of the cut fabrics obtained in comparative example 1 is less than that of the edges of the light and thin fabrics cut by hand; comparative example 2 uses the present invention The cutting tool structure of the application is not the relationship between the length of the blade and the thickness of the fabric using the relationship in the present application, but the setting method in which the blade length is equal to the thickness of the fabric is adopted. After use, after observing the cut pieces finally obtained in comparative example 2, the fabric close to the bottom layer is not completely cut off, and after the cut thin fabric is spread out, it is found that the edge of the cut fabric has a curling problem; while comparative example 3 does not use the thin fabric cutting device of the present application and the thin fabric cutting method corresponding to the device, but uses traditional fabric cutting equipment. After the cutting is completed, the cut fabric is spread out for observation, and it is found that the cut fabrics stacked together have burrs on the edges of the cut pieces, and the stacked fabrics are split into single pieces and flattened, and the edges of the cut pieces have curling problems. The single cut pieces are cut separately, and the edges of the cut pieces have jagged defects during the cutting process, and the edges of the cut pieces are severely bent and curled after being flattened.

[0055] From the fabric states of Example 2, Comparative Examples 4 and 5 in Table 1, it can be seen that when a thin fabric is cut straight into a predetermined shape using a cutter, the thin fabric cutting device of the present invention is used in conjunction with the cutting method used in the present invention, and the auxiliary block on the cutting tool is pre-treated for cooling. When the predetermined shape with a clear corner is cut, the edge of the cut thin fabric is flat, the shape of the individual cut pieces is accurate, the size is precise, the cut marks on the edge of the cut piece are neat without deformation or curling, the cut marks on the corners of the cut pieces are neat, the corners are neat, the angles are accurate, there is no deformation, no curling, and the transition at the arc corners is continuous without jagged edges. When the thin fabric pieces of the same shape are cut in Comparative Example 4, the cutter will appear at the corners. The problem of hanging or snagging on the fabric will also cause different degrees of defects or discontinuous transitions on the edges of the corners, greatly reducing the yield rate, and there is also an obvious problem of curling toward the center; it can be seen from comparative example 5 that when cutting thin fabrics of a predetermined shape, even if the auxiliary block on the tool is pre-treated for cooling, the setting method of the tool is not set according to the method of the present application, and the corners of the cut fabric will also have curling and defects. The tool setting step of the present application needs to be coordinated with the pre-treatment step of the auxiliary block, and the prepared cutting tool can be used to cut thin fabrics of a predetermined shape to achieve a neat overall edge without curling. In addition, when performing the cutting operation, the operator also found that when implementing comparative examples 2 and 5, the equipment would make a slight collision noise during the cutting operation, while the above-mentioned situation when implementing comparative examples 2 and 5 did not occur in embodiments 1, 2 and comparative examples 1, 3, and 4 when the cutting operation was implemented.

[0056] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A device for cutting thin fabrics, characterized in that: It comprises a base (1), a workbench (2), a pressure module (3), a lifting module (4) and a cutting tool (5); the workbench (2) is mounted on the top surface of the base (1) to form a table surface on which fabrics can be spread; the pressure modules (3) are arranged above the workbench (2) at intervals; one end of the lifting module (4) is mounted on the base (1) to form a fixed end, and the other end is fixedly connected to the pressure module (3) and can drive the pressure module (3) to perform a lifting action close to or away from the workbench (2); A pressure space is formed between the workbenches (2), and the cutting tool (5) is arranged in the pressure space. The cutting tool (5) comprises a blade (51), a back plate (52) and an auxiliary block (53). The blade (51) is upright mounted on the plate surface of the back plate (52) and has a protruding edge on the plate surface. The auxiliary block (53) is made of a flexible material and is fixedly connected to the plate surface of the back plate (52) where the blade (51) protrudes, and has a height higher than the height of the blade (51) protruding from the plate surface. There are a plurality of auxiliary blocks (53) and they are arranged close to the blade (51).

2. The thin fabric cutting device according to claim 1, characterized in that: The pressure module (3) comprises a downward pressure controller (31) and a pressure plate (32); the downward pressure controller (31) is mounted on the lifting module (4) and is connected to the lifting module (4) by signal so as to control the lifting and lowering action of the lifting module (4); the pressure plate (32) is arranged parallel to the table surface of the workbench (2) and is mounted on the bottom surface of the downward pressure controller (31) facing the table surface of the workbench (2).

3. The thin fabric cutting device according to claim 2, characterized in that: The downward pressure controller (31) is provided with a sleeve (33), and is sleeved on the lifting end of the lifting module (4) through the sleeve (33), and the top of the sleeve (33) is blocked, forming a movable mechanism with the lifting module (4) as the rotating axis, and the downward pressure controller (31) can perform angular rotation.

4. The thin fabric cutting device according to claim 3, characterized in that: The lifting module (4) is a hydraulic lifting mechanism.

5. The thin fabric cutting device according to claim 4, characterized in that: A threaded center shaft (41) is installed at the center of the top of the lifting module (4). The center shaft (41) is arranged along the axial direction of the lifting module (4), and the end of the center shaft (41) protrudes from the top edge of the sleeve (33). A top cover (34) is installed on the top of the sleeve (33). The top cover (34) is fixedly connected to the top edge of the sleeve (33), and a through hole is provided at the center for the center shaft (41) to pass through. The height of the center shaft (41) is greater than the height of the sleeve (33), and a protrusion is formed on the top surface of the top cover (34).

6. The thin fabric cutting device according to claim 5, characterized in that: The protruding portion on the central shaft (41) is threadedly connected with a hand wheel (35), and the hand wheel (35) is fixedly connected to the through hole of the top cover (34) through a bearing sleeve, forming a height adjustment mechanism that can drive the sleeve (33) to move along the lifting module (4) by rotating the hand wheel (35) and the downward pressure controller (31) and the pressure plate (32).

7. A method for cutting light and thin fabrics using the light and thin fabric cutting device according to claims 1-6, characterized in that: It includes the following steps Step A: Turn on the power switch of the thin fabric cutting device and wait for the lifting module (4) and the pressure module (3) on the device to return to the initial position; Step B: after the lifting module (4) and the pressure module (3) of the light and thin fabric cutting device return to their initial positions, the light and thin fabric is spread on the surface of the workbench (2) and flattened; Step D: The cutting tool (5) is placed on a thin fabric flattened on a table, with the blade (51) facing downward and in contact with the surface of the fabric. The operator controls the lifting module (4) to start by pressing the controller (31). The lifting module (4) drives the pressing plate (32) to press down toward the cutting tool (5). After contacting the back plate (52), the pressing plate (32) continues to press down, applying pressure to the cutting tool (5). The blade (51) cuts the fabric, and the fabric cutting is completed. Step E: After the fabric cutting is completed, the lifting module (4) drives the downward pressure controller (31) and the pressing plate (32) back to the initial position, and then the cutting tool (5), the cut light and thin fabric and the cutting residue are removed respectively, thereby completing the cutting of the light and thin fabric.

8. The method for cutting thin fabrics using the thin fabric cutting device according to claim 7, characterized in that: It also includes step C: determining the thickness of the flattened thin fabric, calculating the height of the blade (51) on the cutting tool (5) according to the thickness, installing the blade (51) with the calculated height on the back plate (52), and then determining the position of installing the auxiliary block according to the shape of the cutting line. After the auxiliary block (53) is installed, the cutting tool (5) is obtained.

9. The method for cutting thin fabrics using the thin fabric cutting device according to claim 7, characterized in that: The calculation formula for determining the tool height is: Where h is the height of the cutter (mm) and d is the thickness of the fabric (mm).

10. The method for cutting thin fabrics using a thin fabric cutting device according to claim 7, characterized in that: The parameters used for pressing and cutting in step D are: punching stroke is 0-2mm, pressing force is 200N / m, and pressing speed is 10-12m / s.

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