Method and equipment for continuously cutting flexible fabric

Abstract

The invention provides a method and equipment for continuously cutting a flexible fabric, and the method comprises the steps: obtaining to-be-cut pattern data of the fabric when a vacuum adsorption conveying mechanism adsorbs and begins to convey the fabric, and calculating the maximum distance in the conveying direction and the minimum distance in the conveying direction of each to-be-cut pattern data; according to the maximum distance in the conveying direction and the minimum distance in the conveying direction, the position of each to-be-cut pattern on the fabric is calculated, cutting position data is obtained, all the to-be-cut patterns are sorted, and a sorting result is obtained. And finally, according to the cutting position data and the cutting contour, a multi-shaft driving device is adopted to drive a cutting head to preferentially perform fabric cutting on the position where the to-be-cut pattern with the minimum sorting result is located, and at the moment, the vacuum adsorption conveying mechanism adopts a parallel process to convey the fabric. Compared with the prior art, the problems of fabric looseness and cutting displacement caused by pressure relief in the prior art are solved, and the cutting quality is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting equipment, and in particular relates to a method and equipment for continuously cutting flexible fabrics. Background Art

[0002] Fabric cutting equipment is an automatic cutting equipment specially used for cutting multi-layer fabrics. It is widely used in cutting clothing, interior decoration and furniture. Fabric cutting equipment is mainly composed of vacuum adsorption conveying mechanism and multi-axis cutting mechanism. The vacuum adsorption conveying mechanism is used to adsorb multi-layer flexible fabrics to "harden" the flexible fabrics to avoid the problem of fabric displacement when cutting by the multi-axis cutting mechanism.

[0003] Existing fabric cutting equipment has the following deficiencies:

[0004] 1. During the cutting process, traditional equipment divides the cloth roll into multiple sections for cutting. Each section remains static during the cutting process. After cutting is completed, it is transported to a collection device or collected manually, which is inefficient and unsafe.

[0005] 2. For fabrics with high adsorption requirements, if segmented static cutting is used, there will be a gap between the cut sample and the cloth roll section in the segmented area. This gap will cause the adsorption surface of the vacuum adsorption conveyor to be unloaded. In addition, the static cloth roll section is relaxed at this time, making it difficult for the cloth section itself to remain "hardened", which will cause the cutting to shift, seriously affecting the cutting quality.

[0006] 3. In the uninterrupted automated cutting process, the cutting head in the multi-axis cutting mechanism needs to extend into multiple layers of fabric for cutting. The cutting process will inevitably cause the cutting head to wear and become blunt, seriously affecting the cutting efficiency and quality. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a method and device for continuously cutting flexible fabrics, which are used to solve the problems existing in the prior art.

[0008] In a first aspect, to achieve the above-mentioned object, the present invention provides a method for continuously cutting a flexible fabric, comprising:

[0009] S10: A multi-threaded control device is used to independently drive the vacuum adsorption conveying mechanism, the multi-axis cutting mechanism and the positioning device;

[0010] The multi-axis cutting mechanism includes a multi-axis driving device and a cutting head arranged at the driving end of the multi-axis driving device; the vacuum adsorption conveying mechanism includes a conveyor belt and a vacuum adsorption platform arranged on the conveyor belt;

[0011] S20: When the vacuum adsorption conveying mechanism adsorbs and starts to convey the fabric, the pattern data to be cut of the fabric is obtained, and the maximum distance in the conveying direction and the minimum distance in the conveying direction of each pattern data to be cut are calculated;

[0012] The pattern data to be cut includes a cutting contour; the maximum distance in the conveying direction refers to the distance between the end point of the cutting contour farthest from the vacuum adsorption platform outlet and the end of the vacuum adsorption platform; the minimum distance in the conveying direction refers to the distance between the end point of the cutting contour closest to the vacuum adsorption platform outlet and the end of the vacuum adsorption platform;

[0013] S30: Calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction and the minimum distance in the conveying direction to obtain cutting position data;

[0014] S40: sorting each to-be-cut pattern according to the minimum distance in the conveying direction to obtain a sorting result;

[0015] Among them, the smaller the minimum distance in the conveying direction, the higher the order of the pattern to be cut;

[0016] S50: according to the cutting position data and the cutting contour, a multi-axis driving device is used to drive the cutting head to preferentially cut the fabric at the position where the to-be-cut pattern with the smallest sorting result is located;

[0017] S60: Using a positioning device to monitor the fabric on the vacuum adsorption conveying mechanism in real time, if the positioning device detects that the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result is greater than a preset threshold, a command to continue adsorbing and conveying the fabric is sent to the vacuum adsorption conveying mechanism; otherwise, the positioning device sends a stop conveying command to the vacuum adsorption conveying mechanism;

[0018] S70: The cut fabric is taken out from the vacuum adsorption conveying mechanism and sent to the receiving table;

[0019] Among them, S50-S60 are executed independently without interfering with each other.

[0020] Through the above technical solution, S50 uses a multi-axis drive device to drive the cutting head to preferentially cut the fabric at the position where the pattern to be cut with the smallest sorting result is located according to the cutting position data and the cutting contour. S60 uses a positioning device to monitor the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result in real time to determine whether the minimum distance in the conveying direction is less than a preset threshold value, so as to determine whether the vacuum adsorption conveying mechanism needs to stop conveying. That is, S50 and S60 in the method of the present invention are independent parallel processes. The fabric is cut while conveying the fabric, which improves the efficiency of cutting the fabric. The whole process does not require human assistance, which improves the safety of fabric cutting. Compared with the prior art, the fabric of the method of the present invention remains dynamic during the cutting process, and the fabric itself is always kept tight due to traction. In addition, the method of the present invention can deliver the cut fabric to the receiving table in time, so that the negative pressure used to adsorb the fabric remains relatively stable, thereby overcoming the problem of fabric relaxation and cutting displacement caused by pressure relief in the prior art, which greatly improves the cutting quality.

[0021] Preferably, in S50, the method of the present invention further includes:

[0022] During the cutting process, it is determined in real time whether the maximum distance of the current cutting pattern in the conveying direction is less than the preset cutting upper limit value. If so, a continuous cutting instruction is issued to the multi-axis driving device; if not, a stop cutting instruction is issued to the multi-axis driving device.

[0023] Preferably, the method of the present invention further comprises:

[0024] S500: A displacement pressure sensor or an acoustic sensor is used to monitor the wear of the cutting head. If the wear is higher than the wear threshold, a sharpening device is used to grind the cutting head.

[0025] Among them, S500 and S60 are executed independently without interfering with each other; when S500 is executed, S50 is temporarily interrupted.

[0026] Preferably, before S30, the method of the present invention further comprises:

[0027] Set the coordinate origin and define the conveying direction of the vacuum adsorption conveying mechanism as the positive direction of the X-axis.

[0028] Preferably, the pattern data to be cut also includes a contour range. If the fabric is provided with multiple rows of pattern data to be cut along the vertical direction of the X-axis, S30 is:

[0029] S31: Taking the coordinate origin as the starting point, define the Y axis according to the X axis and the plane where the fabric is located;

[0030] S32: defining the coordinates of the contour range of all the pattern data to be cut on the Y axis, and obtaining the Y axis coordinates of the range;

[0031] S33: Calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction, the minimum distance in the conveying direction and the Y-axis coordinate of the range to obtain cutting position data.

[0032] In a second aspect, the method of the present invention also provides a device for continuously cutting flexible fabrics, which adopts the above-mentioned method for continuously cutting flexible fabrics, including a multi-thread control device, a vacuum adsorption conveying mechanism, a multi-axis cutting mechanism, a positioning device and a material receiving table;

[0033] The multi-thread control device is used to independently drive the vacuum adsorption conveying mechanism, the multi-axis cutting mechanism and the positioning device respectively; the multi-thread control device is built with a first calculation module, a second calculation module and a sorting module;

[0034] The multi-axis cutting mechanism includes a multi-axis driving device and a cutting head arranged at the driving end of the multi-axis driving device; the vacuum adsorption conveying mechanism includes a conveyor belt and a vacuum adsorption platform arranged on the conveyor belt;

[0035] The first calculation module is used to obtain the to-be-cut pattern data of the fabric when the vacuum adsorption conveying mechanism adsorbs and starts to convey the fabric, and calculate the maximum distance in the conveying direction and the minimum distance in the conveying direction of each to-be-cut pattern data;

[0036] The data of the pattern to be cut includes the cutting contour; the maximum distance in the conveying direction refers to the distance between the end point of the cutting contour farthest from the outlet of the vacuum adsorption platform and the end of the vacuum adsorption platform; the minimum distance in the conveying direction refers to the distance between the end point of the cutting contour closest to the outlet of the vacuum adsorption platform and the end of the vacuum adsorption platform;

[0037] The second calculation module is used to calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction and the minimum distance in the conveying direction to obtain cutting position data;

[0038] The sorting module is used to sort each pattern to be cut according to the minimum distance in the conveying direction to obtain the sorting result;

[0039] Among them, the smaller the minimum distance in the conveying direction, the higher the order of the pattern to be cut;

[0040] The multi-axis driving device is used to drive the cutting head to preferentially cut the fabric at the position where the to-be-cut pattern with the smallest sorting result is located according to the cutting position data and the cutting contour;

[0041] The positioning device is used to monitor the fabric on the vacuum adsorption conveying mechanism in real time. If the positioning device detects that the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result is greater than a preset threshold, the positioning device sends a command to the vacuum adsorption conveying mechanism to continue adsorbing and conveying the fabric; otherwise, the positioning device sends a stop conveying command to the vacuum adsorption conveying mechanism.

[0042] The collecting table is used to collect the cut fabrics.

[0043] Preferably, it also includes a knife sharpening device for sharpening the cutting head, the knife sharpening device is arranged at the driving end of the multi-axis driving device, and the multi-threaded control device is communicatively connected to the knife sharpening device.

[0044] Preferably, it also includes a displacement pressure sensor;

[0045] Among them, the displacement pressure sensor is used to monitor the wear of the cutting head;

[0046] The displacement pressure sensor is communicatively connected to the multi-thread control device.

[0047] The present invention has at least the following advantages:

[0048] 1) Compared with the prior art, the fabric of the method of the present invention remains dynamic during the cutting process, and the fabric itself is always kept tight due to traction. In addition, the method of the present invention can deliver the cut fabric to the receiving table in time, so that the negative pressure used to adsorb the fabric remains relatively stable, thereby overcoming the problem of fabric relaxation and cutting displacement caused by pressure release in the prior art, which greatly improves the cutting quality.

[0049] 2) Compared with the prior art, in order to solve the problem of tool wear, the method of the present invention sets a sharpening interruption during the cutting process, and uses a displacement pressure sensor or an acoustic sensor to monitor the wear of the cutting head. If the wear degree is higher than the wear threshold, the method of the present invention uses a sharpening device to grind the cutting head to solve the problem of cutter head blunting in the prior art.

[0050] 3) Compared with the prior art, the device of the present invention is a high-precision fabric cutting machine tool that integrates a multi-thread control device, a vacuum adsorption conveying mechanism, a multi-axis cutting mechanism, a positioning device and a material receiving table. The device of the present invention can cut fabrics with high precision, high efficiency and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 The figure is a flow chart of a method for continuously cutting flexible fabrics in the first embodiment of the present invention.

[0053] Figure 2 Schematic diagram of fabric conveying direction and cutting head trajectory in Embodiment 1 of the present invention.

[0054] Figure 3 This is a cutting effect diagram of the method for continuously cutting flexible fabrics in Example 1 of the present invention.

[0055] Figure 4 Schematic diagram of the fabric conveying direction and the cutting head trajectory in the second embodiment of the present invention.

[0056] Figure 5 This is a schematic diagram of the structure of the device for continuously cutting flexible fabrics in the third embodiment of the present invention.

[0057] Figure numerals: 1. Multi-thread control device; 2. Vacuum adsorption conveying mechanism; 21. Conveyor belt; 22. Vacuum adsorption platform; 23. Vacuum exhaust silencer; 3. Multi-axis cutting mechanism; 31. Driving end; 4. Positioning device; 5. Material receiving table. DETAILED DESCRIPTION

[0058] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0060] This embodiment discloses a method and a device for continuously cutting flexible fabrics, which are used to solve the problems existing in the prior art.

[0061] Embodiment 1

[0062] like Figure 1 As shown, this embodiment discloses a method for continuously cutting a flexible fabric, the method comprising:

[0063] S10: A multi-threaded control device is used to independently drive the vacuum adsorption conveying mechanism, the multi-axis cutting mechanism and the positioning device.

[0064] In this embodiment, the multi-threaded control device has a built-in multi-core processor, and its outer shell surface is provided with a human-machine interface for human-machine interaction. The vacuum adsorption conveying mechanism is an existing mechanism, which includes a conveyor belt, a vacuum adsorption platform arranged on the conveyor belt and a vacuum exhaust silencer for vacuum absorption, and the flow channel of the vacuum adsorption platform is connected to the vacuum exhaust silencer. The multi-axis cutting mechanism is an existing mechanism, which includes a multi-axis driving device and a cutting head arranged at the driving end of the multi-axis driving device. The multi-axis driving device can be a three-axis driving arm, a four-axis driving arm or a five-axis driving arm, and the specific number of axes can be set according to actual conditions.

[0065] In this embodiment, the cutting head may be the cutting head described in CN208414939U.

[0066] Specifically, a multi-threaded control device is used to configure a multi-line process to independently drive the vacuum adsorption conveying mechanism, the multi-axis cutting mechanism and the positioning device, thereby reducing the delay of the sequential execution logic, thereby improving the overall efficiency of the method itself.

[0067] S20: When the vacuum adsorption conveying mechanism adsorbs and starts to convey the fabric, the pattern data to be cut of the fabric is obtained, and the maximum distance in the conveying direction and the minimum distance in the conveying direction of each pattern data to be cut are calculated.

[0068] In this embodiment, if Figure 2 As shown, the cutting pattern data includes the cutting contour and contour range. The cutting contour can be a regular contour or an irregular contour. The maximum distance in the conveying direction refers to the distance between the end point of the cutting contour in the cutting pattern data that is farthest from the vacuum adsorption platform outlet and the end of the vacuum adsorption platform, that is, Figure 2 The minimum distance in the conveying direction refers to the distance between the end point of the cutting contour in the cutting pattern data closest to the vacuum adsorption platform outlet and the end of the vacuum adsorption platform, that is, Figure 2 Xmin shown.

[0069] S30: Calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction and the minimum distance in the conveying direction to obtain cutting position data.

[0070] Before S30, the method of the present invention further includes:

[0071] Set the coordinate origin and define the conveying direction of the vacuum adsorption conveying mechanism as the positive direction of the X-axis.

[0072] In this embodiment, only the case where the fabric is provided with one pattern data to be cut along the vertical direction of the X-axis is considered. A single-dimensional coordinate system is set before S30 to facilitate determination of the cutting position data.

[0073] It should be noted that the cutting track coordinates of the multi-axis cutting mechanism are different from the above coordinate system, and the above coordinate data are only used for sorting and judgment in subsequent steps. The coordinate origin can be set according to actual conditions.

[0074] S40: sorting each to-be-cut pattern according to the minimum distance in the conveying direction to obtain a sorting result.

[0075] In this embodiment, the to-be-cut pattern with a smaller minimum distance in the conveying direction is arranged at the front.

[0076] It should be noted that the sorting result obtained in S40 can be used to assist the multi-axis cutting mechanism in planning the cutting trajectory.

[0077] S50: According to the cutting position data and the cutting contour, a multi-axis driving device is used to drive the cutting head to preferentially cut the fabric at the position where the to-be-cut pattern with the smallest sorting result is located.

[0078] Through the above S50, the cutting trajectory of the multi-axis cutting mechanism moves from the pattern to be cut with a low sequence number to the pattern to be cut with a high sequence number.

[0079] Furthermore, before cutting in the above step S50, the method of the present invention further includes:

[0080] Whether the number of patterns to be cut n is greater than 0;

[0081] If so, obtain the smallest pattern to be cut in the sorting result;

[0082] If not, end.

[0083] Furthermore, in the above step S50, the method of the present invention further includes:

[0084] During the cutting process, it is determined in real time whether the maximum distance Xmax of the conveying direction of the current cutting pattern is less than the preset cutting upper limit XCmax. If so, a continuous cutting instruction is issued to the multi-axis driving device; if not, a stop cutting instruction is issued to the multi-axis driving device.

[0085] S60: Use a positioning device to monitor the fabric on the vacuum adsorption conveying mechanism in real time. If the positioning device detects that the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result is greater than a preset threshold, a command to continue adsorbing and conveying the fabric is sent to the vacuum adsorption conveying mechanism; otherwise, the positioning device sends a stop conveying command to the vacuum adsorption conveying mechanism.

[0086] It should be noted that if Figure 3 As shown, the pattern to be cut with the largest sorting result is the last pattern to be cut. When the last pattern to be cut is cut, it stays on the adsorption surface and waits for the cutting head to cut.

[0087] S70: The cut fabric is taken out from the vacuum adsorption conveying mechanism and sent to the receiving table 5.

[0088] It should be noted that the above-mentioned cut fabrics refer to the fabrics before the last pattern to be cut, and these fabrics are automatically pushed into the receiving table with the help of the thrust of the conveyor belt.

[0089] Different from the prior art, S50 and S60 in the method of the present invention are independent parallel processes. Fabric cutting is performed simultaneously during the fabric conveying process, which improves the efficiency of fabric cutting. The entire process does not require human assistance, which improves the safety of fabric cutting. The fabric of the method of the present invention remains dynamic during the cutting process, and the fabric itself is always kept tight due to traction. In addition, the method of the present invention can deliver the cut fabric to the receiving table 5 in time, so that the negative pressure used to absorb the fabric remains stable, thereby overcoming the problem of fabric loosening and cutting displacement caused by pressure release in the prior art, which greatly improves the cutting quality.

[0090] Preferably, the method of the present invention further comprises:

[0091] S500: A displacement pressure sensor or an acoustic sensor is used to monitor the wear of the cutting head. If the wear is higher than the wear threshold, a sharpening device is used to grind the cutting head.

[0092] Among them, S500 and S60 are executed independently without interfering with each other; when S500 is executed, S50 is temporarily interrupted.

[0093] In an embodiment, the knife sharpening device may be the knife sharpening device described in CN104128850A. In other embodiments, the sensor for monitoring the wear of the cutting head may also be a vibration sensor or an optical sensor.

[0094] Through the above technical solution, the method of the present invention sets a knife sharpening interruption subroutine during the cutting process. If the wear degree is higher than the wear threshold, after completing the current cutting task in S50, the knife sharpening device is temporarily interrupted to grind the cutting head. After the knife sharpening is completed, the method returns to S50. Compared with the prior art, the method of the present invention incorporates the function of automatic knife sharpening, which can solve the problem of knife blunting in the prior art.

[0095] Embodiment 2

[0096] like Figure 4 As shown, this embodiment is different from the first embodiment. If the fabric is provided with multiple rows of pattern data to be cut along the vertical direction of the X-axis, then S30 in the first embodiment is specifically:

[0097] S31: Taking the coordinate origin as the starting point, define the Y axis according to the X axis and the plane where the fabric is located;

[0098] S32: defining the coordinates of the contour range of all the pattern data to be cut on the Y axis, and obtaining the Y axis coordinates of the range;

[0099] S33: Calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction, the minimum distance in the conveying direction and the Y-axis coordinate of the range to obtain cutting position data.

[0100] Correspondingly, the order of the patterns to be cut needs to be considered in combination with the minimum distance in the conveying direction, the origin of the coordinates, and the cutting track of the cutting head. But in general, the ordering principle is that the smaller the minimum distance in the conveying direction, the higher the order of the pattern to be cut.

[0101] Embodiment 3

[0102] like Figure 5 As shown, this embodiment discloses a device for continuously cutting flexible fabrics, which adopts the method for continuously cutting flexible fabrics recorded in the first or second embodiment. The device includes a multi-thread control device 1, a vacuum adsorption conveying mechanism 2, a multi-axis cutting mechanism, a positioning device 4 and a material receiving table 5;

[0103] The multi-thread control device 1 is used to independently drive the vacuum adsorption conveying mechanism 2, the multi-axis cutting mechanism 3 and the positioning device 4 respectively; the multi-thread control device 1 has a first calculation module, a second calculation module and a sorting module built in;

[0104] The multi-axis cutting mechanism 3 includes a multi-axis driving device and a cutting head arranged at a driving end 31 of the multi-axis driving device;

[0105] The first calculation module is used to obtain the to-be-cut pattern data of the fabric when the vacuum adsorption conveying mechanism 2 adsorbs and starts to convey the fabric, and calculate the maximum distance in the conveying direction and the minimum distance in the conveying direction of each to-be-cut pattern data;

[0106] The pattern data to be cut includes a cutting outline;

[0107] The second calculation module is used to calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction and the minimum distance in the conveying direction to obtain cutting position data;

[0108] The sorting module is used to sort each pattern to be cut according to the minimum distance in the conveying direction to obtain the sorting result;

[0109] Among them, the smaller the minimum distance in the conveying direction, the higher the order of the pattern to be cut;

[0110] The multi-axis driving device is used to drive the cutting head to preferentially cut the fabric at the position where the to-be-cut pattern with the smallest sorting result is located according to the cutting position data and the cutting contour;

[0111] The positioning device 4 is used to monitor the fabric on the vacuum adsorption conveying mechanism 2 in real time. If the positioning device 4 detects that the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result is greater than a preset threshold, a command to continue adsorbing and conveying the fabric is sent to the vacuum adsorption conveying mechanism 2; otherwise, the positioning device 4 sends a stop conveying command to the vacuum adsorption conveying mechanism 2;

[0112] The material collecting table 5 is used to collect the cut fabrics.

[0113] Furthermore, the apparatus of the present invention also includes a sharpening device for sharpening the cutting head. The sharpening device is arranged at the driving end 31 of the multi-axis driving device and is communicatively connected to the multi-threaded control device 1. When the sharpening device receives a sharpening instruction issued by the multi-threaded control device 1, the cutting head stops cutting and is in place, and then the cutting head is sharpened.

[0114] Furthermore, the positioning device 4 may be an encoder for position measurement of data collection.

[0115] Compared with the prior art, the equipment of the present invention integrates a high-precision fabric cutting machine tool including a multi-threaded control device 1, a vacuum adsorption conveying mechanism 2, a multi-axis cutting mechanism 3, a positioning device 4 and a material receiving table 5, and can cut fabrics with high precision, high efficiency and high safety.

[0116] Furthermore, the device of the present invention further comprises a displacement pressure sensor, which is used to monitor the wear of the cutting head. The displacement pressure sensor is communicatively connected to the multi-thread control device 1 to transmit the monitored wear of the cutting head to the multi-thread control device 1 in real time.

[0117] It can be understood by those skilled in the art that all or part of the steps of the above-mentioned embodiments can be implemented by hardware related to program instructions. The above-mentioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiment are executed. The above-mentioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various media that can store program codes.

[0118] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A method for continuously cutting flexible fabrics, characterized in that: include: S10: using a multi-thread control device (1) to independently drive the vacuum adsorption conveying mechanism (2), the multi-axis cutting mechanism (3) and the positioning device (4); The multi-axis cutting mechanism (3) comprises a multi-axis driving device and a cutting head arranged at a driving end (31) of the multi-axis driving device; the vacuum adsorption conveying mechanism (2) comprises a conveyor belt (21) and a vacuum adsorption platform (22) arranged on the conveyor belt (21); S20: when the vacuum adsorption conveying mechanism (2) adsorbs and starts conveying the fabric, obtaining the pattern data to be cut of the fabric, and calculating the maximum distance in the conveying direction and the minimum distance in the conveying direction of each pattern data to be cut; The pattern data to be cut includes a cutting contour; the maximum distance in the conveying direction refers to the distance between the end point of the cutting contour farthest from the outlet of the vacuum adsorption platform (22) and the end of the vacuum adsorption platform (22); the minimum distance in the conveying direction refers to the distance between the end point of the cutting contour closest to the outlet of the vacuum adsorption platform (22) and the end of the vacuum adsorption platform (22); S30: Calculating the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction and the minimum distance in the conveying direction to obtain cutting position data; S40: sorting each to-be-cut pattern according to the minimum distance in the conveying direction to obtain a sorting result; Among them, the smaller the minimum distance in the conveying direction, the higher the order of the pattern to be cut; S50: according to the cutting position data and the cutting contour, the multi-axis driving device is used to drive the cutting head to preferentially cut the fabric at the position where the to-be-cut pattern with the smallest sorting result is located; S60: using the positioning device (4) to monitor the fabric on the vacuum adsorption conveying mechanism (2) in real time; if the positioning device (4) detects that the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result is greater than a preset threshold, a command to continue adsorbing and conveying the fabric is sent to the vacuum adsorption conveying mechanism (2); otherwise, the positioning device (4) sends a stop conveying command to the vacuum adsorption conveying mechanism (2); S70: The cut fabric is taken out from the vacuum adsorption conveying mechanism (2) and sent to a material receiving platform (5); Wherein, S50-S60 are executed independently without interfering with each other.

2. The method for continuously cutting flexible fabrics according to claim 1, characterized in that: In the S50, the method further includes: During the cutting process, it is determined in real time whether the maximum distance of the current cutting pattern in the conveying direction is less than the preset cutting upper limit value. If so, a continuous cutting instruction is issued to the multi-axis driving device; if not, a stop cutting instruction is issued to the multi-axis driving device.

3. The method for continuously cutting flexible fabrics according to claim 1, characterized in that: Also includes: S500: using a displacement pressure sensor or an acoustic sensor to monitor the wear of the cutting head, and if the wear is higher than a wear threshold, using a sharpening device to grind the cutting head; The S500 and the S60 are executed independently without interfering with each other; when the S500 is executed, the S50 is temporarily interrupted.

4. The method for continuously cutting flexible fabrics according to claim 1, characterized in that: Before S30, the method further includes: The coordinate origin is set, and the conveying direction of the vacuum adsorption conveying mechanism (2) is defined as the positive direction of the X-axis.

5. The method for continuously cutting flexible fabrics according to claim 4, characterized in that: The pattern data to be cut also includes a contour range. If the fabric is provided with multiple rows of pattern data to be cut along the vertical direction of the X-axis, then S30 is: S31: Taking the coordinate origin as the starting point, defining the Y axis according to the X axis and the plane where the fabric is located; S32: defining the coordinates of the contour range of all the pattern data to be cut on the Y axis, and obtaining the Y axis coordinates of the range; S33: Calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction, the minimum distance in the conveying direction and the Y-axis coordinate of the range to obtain cutting position data.

6. A device for continuously cutting flexible fabrics, characterized in that: A method for continuously cutting flexible fabrics according to any one of claims 1 to 5, comprising a multi-thread control device (1), a vacuum adsorption conveying mechanism (2), a multi-axis cutting mechanism (3), a positioning device (4) and a material receiving table (5); The multi-thread control device (1) is used to independently drive the vacuum adsorption conveying mechanism (2), the multi-axis cutting mechanism (3) and the positioning device (4); the multi-thread control device (1) is built with a first calculation module, a second calculation module and a sorting module; The multi-axis cutting mechanism (3) comprises a multi-axis driving device and a cutting head arranged at a driving end (31) of the multi-axis driving device; the vacuum adsorption conveying mechanism (2) comprises a conveyor belt (21) and a vacuum adsorption platform (22) arranged on the conveyor belt (21); The first calculation module is used to obtain the to-be-cut pattern data of the fabric when the vacuum adsorption conveying mechanism (2) adsorbs and starts to convey the fabric, and calculates the maximum distance in the conveying direction and the minimum distance in the conveying direction of each to-be-cut pattern data; The second calculation module is used to calculate the position of each pattern to be cut on the fabric according to the maximum distance in the conveying direction and the minimum distance in the conveying direction to obtain cutting position data; The sorting module is used to sort each to-be-cut pattern according to the minimum distance in the conveying direction to obtain a sorting result; Among them, the smaller the minimum distance in the conveying direction, the higher the order of the pattern to be cut; The multi-axis driving device is used to drive the cutting head to preferentially cut the fabric at the position where the to-be-cut pattern with the smallest sorting result is located according to the cutting position data and the cutting contour; The positioning device (4) is used to monitor the fabric on the vacuum adsorption conveying mechanism (2) in real time. If the positioning device (4) detects that the minimum distance in the conveying direction of the pattern to be cut with the largest sorting result is greater than a preset threshold, an instruction to continue adsorbing and conveying the fabric is sent to the vacuum adsorption conveying mechanism (2); otherwise, the positioning device (4) sends a stop conveying instruction to the vacuum adsorption conveying mechanism (2); The material collecting platform (5) is used to collect the cut fabrics.

7. The device for continuously cutting flexible fabrics according to claim 6, characterized in that: It also comprises a knife sharpening device for sharpening the cutting head, the knife sharpening device is arranged at the driving end (31) of the multi-axis driving device, and the multi-threaded control device (1) is communicatively connected to the knife sharpening device.

8. The device for continuously cutting flexible fabrics according to claim 6, characterized in that: Also included is a displacement pressure sensor; Wherein, the displacement pressure sensor is used to monitor the wear degree of the cutting head; The displacement pressure sensor is communicatively connected to the multi-thread control device (1).

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