A method, apparatus and readable storage medium for cutting leather

Abstract

A leather cutting method, device and readable storage medium, including planning cutting information and cutting area according to leather information, cutting the cutting of three cutting areas by three cutting assemblies respectively, each cutting assembly verifies before cutting, obtains whether the minimum working distance of adjacent cutting assemblies is greater than the safety distance, and according to the verification result, specifically, the cutting assemblies on both sides avoid the cutting assemblies in the middle to complete the cutting first. Through the simultaneous cutting of the three cutting assemblies on the leather, the production efficiency is improved; at the same time, by avoiding the cutting assemblies on both sides from the cutting assemblies in the middle, the production accidents caused by the collision of multiple cutting assemblies working at the same time are avoided.

Description

Technical Field

[0001] This invention relates to the field of leather cutting technology, and more particularly to a leather cutting method, apparatus, and readable storage medium. Background Technology

[0002] The overall leather processing flow is a complex and meticulous process, involving multiple steps such as whole-hide processing, measurement and marking, planning and cutting, and actual cutting. To improve the quality and efficiency of each step in leather processing, many manufacturers are focusing on upgrading and improving the production equipment used in the process.

[0003] However, with the rapid development of automation technology and artificial intelligence, intelligent manufacturing has been widely advocated. In leather production and processing, processes such as measuring leather, drawing cut pieces based on the actual condition of the leather (avoiding surface defects) and production needs, and cutting the pieces can be achieved in one integrated leather cutting device. Furthermore, to improve the processing efficiency of large pieces of leather, a reasonable cutting method is also essential. Summary of the Invention

[0004] In view of the problems raised in the background art, the purpose of this invention is to provide a leather cutting method, equipment and readable storage medium, which solves the problem of low production efficiency in existing leather processing.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A method for cutting leather, comprising the steps of:

[0007] S100. Based on the information about the leather and the production needs, plan several pieces of leather.

[0008] S200. Based on the information of the cut pieces, the leather is divided into three cutting areas: the left area, the middle area, and the right area. The left area is cut by the left cutting component, the middle area is cut by the middle cutting component, and the right area is cut by the right cutting component. Each cutting component cuts the cut pieces of its respective cutting area according to the rule of cutting from left to right and from top to bottom.

[0009] S300. Before each cutting component cuts each piece of fabric, it verifies whether the minimum working distance between the cutting component and the adjacent cutting component is greater than the safety distance S, wherein the safety distance S is the minimum distance between the two cutters when the two adjacent cutting components do not collide.

[0010] S410. If the verification result is yes, then the two adjacent cutting components will perform cutting normally until all pieces are cut.

[0011] S420. If the verification result is negative, determine whether the central region has completed the cutting of all the pieces within the central region.

[0012] S510. If the judgment result is negative, the left cutting component or the right cutting component pauses operation and performs avoidance, waiting for the middle cutting component to complete the current cutting, and then repeats step S300; step S510 further includes: dividing the cut pieces in the right region into a right cutable area and a right non-cutable area, and having the middle cutting component cut all the cut pieces in the right region where the right non-cutable area is located; wherein, the right cutable area is the cut piece area where the working distance between the right cutting component and the middle cutting component is greater than or equal to the safety distance S when cutting; the right non-cutable area is the cut piece area where the working distance between the right cutting component and the middle cutting component is less than the safety distance S when cutting;

[0013] S520. If the judgment result is yes, the left cutting component or the right cutting component performs cutting, and the middle cutting component avoids the cut while ensuring a safe distance S, until all the cut pieces in the left area and the right area are cut.

[0014] Preferably, in step S200, the leather is divided into three cutting regions according to the total circumference of the cut pieces, so that the total circumference of the cut pieces in each cutting region is the same.

[0015] Preferably, the length L of the intermediate region satisfies L > 1. + ,in, This represents the safe distance between the center cutting component and the left cutting component; and the safe distance between the center cutting component and the right cutting component.

[0016] Preferably, step S510 further includes: dividing the cut piece in the left region into a left cutable area and a left non-cutable area; after the left cutting component completes the cutting of the left cutable area, the operation is paused and step S300 is repeated.

[0017] Wherein, the left cutable area is the area of ​​the cut piece where, during cutting, the working distance between the left cutting component and the middle cutting component is greater than or equal to the safety distance S; the left non-cuttable area is the area of ​​the cut piece where, during cutting, the working distance between the left cutting component and the middle cutting component is less than the safety distance S.

[0018] A leather cutting device includes a worktable, a mounting frame, a left cutting assembly, a middle cutting assembly, a right cutting assembly, and a control system;

[0019] The left cutting assembly, the middle cutting assembly, and the right cutting assembly are mounted above the workbench via the mounting bracket;

[0020] The left cutting assembly includes a left auxiliary beam, a first driving device, and a left cutting blade. The left cutting blade is mounted on the left auxiliary beam via the first driving device. The first driving device is used to drive the left cutting blade to reciprocate along the extension direction of the left auxiliary beam and to drive the left cutting blade to reciprocate up and down.

[0021] The middle cutting assembly includes a middle main beam, a second driving device, and a middle cutter. The middle cutter is mounted on the middle main beam via the second driving device. The second driving device is used to drive the middle cutter to reciprocate along the extension direction of the middle main beam and to drive the middle cutter to reciprocate up and down.

[0022] The right cutting assembly includes a right auxiliary beam, a third driving device, and a right cutting blade. The right cutting blade is mounted on the right auxiliary beam via the third driving device. The third driving device is used to drive the right cutting blade to reciprocate along the extension direction of the right auxiliary beam and to drive the right cutting blade to reciprocate up and down.

[0023] The left auxiliary beam, the middle main beam, and the right auxiliary beam are arranged sequentially and parallel to each other on the mounting frame and are slidably connected to the mounting frame; the left cutter, the middle cutter, and the right cutter are used to cut the leather placed on the workbench;

[0024] The control system includes an information acquisition module, a planning and division module, a distance acquisition module, a verification module, and a judgment module. The information acquisition module is used to collect information on the safety distance between adjacent cutting components, leather information, and production demand information. The planning and division module is used to plan the information of the cutting pieces and divide the area into three cutting zones. The distance acquisition module is used to obtain the minimum working distance between any current cutting component and its adjacent cutting components. The verification module is used to verify whether the minimum working distance between any cutting component and its adjacent cutting components is greater than the safety distance S. The judgment module is used to determine whether the cutting of all cutting pieces in the central area has been completed.

[0025] The left cutting component, the middle cutting component, and the right cutting component are electrically connected to the control system, which controls the left cutting component, the middle cutting component, and the right cutting component to implement the steps of the leather cutting method described above.

[0026] Preferably, it also includes a conveying device and a scanning device;

[0027] The conveying device is located at the inlet and outlet of the workbench and is used to convey the leather from the inlet to the workbench and from the outlet to the workbench.

[0028] The scanning device is mounted on the mounting frame and located above the feed end of the worktable. The scanning device is used to scan the leather.

[0029] The conveying device and the scanning device are respectively electrically connected to the control system.

[0030] A readable storage medium storing a computer program that, when run on a processor, executes the above-described leather cutting method.

[0031] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0032] The leather cutting method allows three cutting components to cut pieces from three different cutting areas, significantly improving production efficiency compared to using only one cutting component. Furthermore, before each cut, the cutting components check the piece information to determine if a collision is possible. If a collision is suspected, the left and right cutting components prioritize the middle cutting component, allowing it to complete its cut first. This avoids production accidents that can occur when multiple cutting components cut the same leather, improving production safety. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of one embodiment of the left cutting component, the middle cutting component, and the right cutting component of the present invention;

[0034] Figure 2 This is a schematic diagram of the cutting plan for one embodiment of the leather cutting method of the present invention;

[0035] Figure 3 This is a schematic diagram of the cutting plan for another embodiment of the leather cutting method of the present invention;

[0036] Figure 4 This is a schematic diagram of the cutting plan for another embodiment of the leather cutting method of the present invention;

[0037] Figure 5 yes Figure 3 Enlarged view of point A in the middle;

[0038] Figure 6 This is a schematic diagram of one embodiment of the leather cutting device of the present invention.

[0039] Among them: leather 110, cut pieces 120, defects 130, left area 111, middle area 112, right area 113, processing area 114;

[0040] Left cutting assembly 210, left cutter 211, left auxiliary beam 212, middle cutting assembly 220, middle cutter 221, middle main beam 222, right cutting assembly 230, right cutter 231 and right auxiliary beam 232. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0044] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] The following is in conjunction with the appendix Figures 1 to 6 The technical solution of the present invention will be further illustrated through specific embodiments.

[0046] One embodiment of this application provides a leather cutting method, which includes the following steps:

[0047] S100. Based on the information about the leather and the production needs, plan several pieces 120 on the leather 110.

[0048] Leather information is typically obtained by scanning the entire surface of the leather using a leather scanning device. Specifically, the leather information includes the overall dimensions of the leather, its pattern, or defects 130, etc. Production requirement information includes the required cut piece shape, cut piece size, and cut piece quantity. By combining the leather information and production requirement information, the location of each cut piece 120 on the leather 110 is planned, avoiding locations with leather defects 130 (it is worth noting that defects refer to gaps, or other spots, patterns, etc. that cannot be included in the cut pieces).

[0049] Step S200: Divide the leather into three cutting areas: left area 111, middle area 112, and right area 113 according to the information of the cut pieces. The left area 111 is cut by the left cutting component 210, the middle area 112 is cut by the middle cutting component 220, and the right area 113 is cut by the right cutting component 230. Each cutting component cuts the cut pieces of its respective cutting area according to the rule of left to right and top to bottom.

[0050] Specifically, such as Figure 2 and Figure 3 As shown, the cut pieces 120 planned according to production needs cannot all be of uniform shape or size, and the distribution of the planned cut pieces 120 on the leather 110 is irregular. Based on the size and shape of the planned cut pieces 120, the leather 110 is divided into three cutting areas: left area 111, middle area 112, and right area 113. Each cutting area contains basically complete cut pieces. The left cutting component 210 is responsible for cutting all cut pieces in the left area 111, the middle cutting component 220 is responsible for cutting all cut pieces in the middle area 112, and the right cutting component 230 is responsible for cutting all cut pieces in the right area 113. All cutting components follow the rule of cutting from left to right and from top to bottom.

[0051] Step S300: Before each cutting component cuts each piece 120, it checks whether the minimum working distance between the cutting component and the adjacent cutting component is greater than the safety distance S, wherein the safety distance S is the minimum distance between the two cutters when the two adjacent cutting components do not collide.

[0052] Figure 1The diagram illustrates the states of the left cutting component 210 and the middle cutting component 220 when they are infinitely close to each other but do not touch, and the states of the middle cutting component 220 and the right cutting component 230 when they are infinitely close to each other but do not touch. Since each cutting component includes a drive module, a protective shell, and a cutting blade, and the cutting of leather is specifically performed by the cutting blade, if two pieces 120 in adjacent cutting areas are very close to each other, when the cutting blades of the two adjacent cutting components need to cut the close-to-each-other parts of the pieces, the other parts of the two cutting components (protective shell, etc.) will interfere / collide with each other. Therefore, to ensure that adjacent cutting components do not interfere with each other, a safe distance S between the two adjacent cutting components must be maintained. Figure 1 As shown, for the left cutting assembly 210 and the middle cutting assembly 220, the distance between the left cutter 211 and the middle cutter 221 is... It refers to their safe distance; for the middle cutting assembly 220 and the right cutting assembly 230, the distance between the middle cutter 221 and the right cutter 231. That is their safe distance.

[0053] Before each cutting component performs a cutting of a piece 120, it needs to verify whether the working distance between it and the adjacent cutting component is greater than the safety distance S during the cutting process. Specifically, the safety distance between the left cutting component 210 and the middle cutting component 220 is... The safe distance between the left cutting component 210 and the middle cutting component 220 is The verification of the working distance between adjacent cutting components is specifically obtained through analysis of the acquired leather size information, the planned information on each cut piece (distribution and size), and the distribution information of the three cutting areas. Since the cut piece planning and cutting area zoning have been confirmed by the system planning, the horizontal distance between two points on two cut pieces in two adjacent cutting areas is the working distance between the two cutting components (the cutters) when cutting at that point. Furthermore, the safety distance S between adjacent cutting components is manually entered into the control system, and the safety distance between different cutting components is also different.

[0054] S410. If the verification result is yes, then the two adjacent cutting components will perform cutting normally until all pieces are cut.

[0055] like Figure 2 The figure shows a specific embodiment of the cutting piece planning in step S200. In this embodiment, the cutting pieces 120 are all small pieces, and the defect 130 is also effectively avoided.

[0056] Specifically, taking the left cutting component 210 and the middle cutting component 220 as examples, the left cutting component 210 first cuts the first piece 120 in the upper left corner of the left region 111, and the middle cutting component 220 cuts the first piece 120 in the upper left corner of the middle region 112. After verification, the working distance of both cutting components in completing the cutting process of the current piece is greater than the safety distance. If so, both the left cutting component 210 and the middle cutting component 220 will normally perform the cutting of the currently verified cut pieces in their respective cutting areas. Similarly, for the middle cutting component 220 and the right cutting component 230, the working distance after verification for cutting the first cut piece 120 in the upper left corner of their respective areas is greater than the safety distance. Both trimming components perform trimming normally.

[0057] S420. If the verification result is negative, determine whether the middle area 112 has completed the cutting of all the cut pieces.

[0058] S510. If the judgment result is negative, the left cutting component 210 or the right cutting component 230 shall suspend operation and perform avoidance, and wait for the middle cutting component 220 to complete the current cutting before repeating step S300.

[0059] S520. If the judgment result is yes, the left cutting component or the right cutting component performs cutting, and the middle cutting component avoids the cut while ensuring a safe distance S, until all the cut pieces in the left area and the right area are cut.

[0060] The following are some examples:

[0061] Scenario 1: Before cutting the cut piece 120, the left cutting component 210 performs a check, and the check result shows that the working distance is less than the safe distance. This situation (equivalent to the minimum working distance being less than the safe distance) Then determine whether all the cut pieces in the middle area 112 have been cut.

[0062] If the central area 112 has not completed the cutting of all the cut pieces 120 (the judgment result is no), and the central cutting component 220 is currently cutting, then the left cutting component 210 does not perform any operation, and may even need to move to the left to provide sufficient working space for the central cutting component 220 if necessary. After the central cutting component 220 completes the cutting of the current cut piece, the left cutting component 210 repeats step S300.

[0063] Scenario 2: The right cutting component 230 performs a check before cutting the cut piece 120. The check result shows that the working distance is less than the safe distance. This situation (equivalent to the minimum working distance being less than the safe distance) Then determine whether all the cut pieces in the middle area 112 have been cut.

[0064] If the middle area 112 has not completed the cutting of all the pieces 120 (the judgment result is no), and the middle cutting component 220 is cutting, then the left cutting component 210 does not perform any operation, and may even need to move to the right to provide sufficient working space for the middle cutting component 220 if necessary. When the middle cutting component 220 completes the cutting of the current piece, the right cutting component 230 repeats step S300.

[0065] Scenario 3: The middle cutting component 220 performs a check on the cut piece 120 before cutting. The check result shows that the working distance is less than the safety distance S (compared with the left cutting component 210, the safety distance is...). Compared with the right cutting component 230, the safe distance is If the result of determining whether the middle region 112 has completed the cutting of all pieces is negative, then even if the left cutting component 210 or the right cutting component 230 is performing a cutting operation, the operation needs to be stopped. If necessary, the left cutting component 210 needs to move to the left (similarly, the right cutting component 230 needs to move to the right) to provide sufficient working space for the middle cutting component 220. After the middle cutting component 220 completes the cutting of the current piece, the middle cutting component 220 repeats step S300.

[0066] Scenario 4: In Scenario 1 and Scenario 2, if it is determined that all the fabric pieces in the central area 112 have been cut, then the stopping position of the central cutting component 220 is verified to be less than the minimum working distance S from the left cutting component 210 (or the right cutting component 230). Since the central area 112 has completed the cutting of all the fabric pieces, the central cutting component 220 needs to move to avoid this and cooperate with the left cutting component 210 (or the right cutting component 230) to complete the cutting of all the fabric pieces in the left area 111 (or the right area 113).

[0067] In summary, considering the four scenarios above, if none of the three cutting areas have been completed, the middle cutting component 220 will prioritize cutting the middle area 112, while the left and right cutting components 210 and 230 will cooperate with the middle cutting component 220 to complete the cutting first. Once the middle cutting component 220 completes the cutting of the pieces in the middle area 112, it needs to make way for the other components until the left and right cutting components 210 and 230 complete the cutting of all pieces in the corresponding left and right areas 111 and 113.

[0068] Furthermore, in step S200, the leather is divided into three cutting regions according to the total perimeter of the cut pieces, so that the total perimeter of the cut pieces in each cutting region is the same.

[0069] The three cutting areas are divided according to the planned total perimeter of the cut pieces. Since all cut pieces within the three cutting areas have the same total perimeter, and assuming the three cutting components operate at the same speed and follow a left-to-right, top-to-bottom cutting principle, there will be fewer instances of the three cutting components pausing or needing to avoid obstacles. It is worth noting that the cutting speeds of the three cutting components in this scheme can be the same or different.

[0070] Furthermore, the length L of the intermediate region satisfies L > + ,in, This is the safe distance between the center cutting component and the left cutting component; This is the safe distance between the center cut component and the right cut component.

[0071] The length L of region 112 needs to satisfy L > 1. + In conjunction with scenario four above, if the middle cutting component 220 has completed cutting all the pieces 120 within the middle region 112, then the middle cutting component 220 is in a stationary state. If a piece 120 in the left region 111 is very close to the middle region 112, then during the cutting process, when the left cutter 211 cuts that portion of the piece 120, some components of the left cutting component 210 (such as the protective shell) will enter the middle region 112. Therefore, to avoid interference (collision) with the left cutting component 210, the middle cutting component 220 needs to move to the right to maintain a distance greater than a safe distance between them. At the same time, during the process of the right cutting component 230 cutting a piece very close to the middle region 112 within the right region 113, some parts of the right cutting component 230 (such as the protective shell) will also enter the middle region 112. In order to ensure that the right cutting component 230 and the middle cutting component 220 do not interfere (collide), the middle cutting component 220 also needs to move to the left to keep the distance between them greater than the safe distance. Therefore, the length L of the middle region 112 needs to satisfy L > 1. + When the middle cutting component 220 needs to avoid both the left cutting component 210 and the right cutting component 230 at the same time, it has enough space to move within the middle region 112 to ensure that the avoidance on both sides will not interfere (collide) with other cutting components.

[0072] Furthermore, step S510 also includes: dividing the cut piece in the left region into a left cutable area and a left non-cutable area; after the left cutting component completes the cutting of the left cutable area, the operation is paused and step S300 is repeated.

[0073] Wherein, the left cutable area is the area of ​​the cut piece where, during cutting, the working distance between the left cutting component and the middle cutting component is greater than or equal to the safety distance S; the left non-cuttable area is the area of ​​the cut piece where, during cutting, the working distance between the left cutting component and the middle cutting component is less than the safety distance S.

[0074] refer to Figure 3 The diagram shows another specific embodiment of the cutting piece planning in step S200. In this embodiment, cutting pieces 120 are planned with different shapes and sizes according to production needs, and defects 130 are also effectively avoided. In conjunction with the above scenario one, the left cutting component 210 performs a check before cutting the cutting pieces ABCD. The check result shows that there is a working distance that is less than the safe distance. In cases where the distance is less than the safe distance If the cutting area is EFCD, then EABF is divided into the left cutable area, and the left cutting component 210 can cut EABF first (it is worth noting that the connection between EF does not need to be cut to ensure the integrity of the cutting piece ABCD); FCDE is divided into the left non-cuttable area, and FCDE is left uncut. When the cutting component 220 completes the current cutting operation, step 300 is repeated until it is verified that the working distance between the left cutting component 210 and the middle cutting component 220 is greater than the safety distance when cutting FCDE. Only then is the FCDE cutting process implemented, ultimately completing the cutting of the ABCD pieces.

[0075] Similarly, the operating principle of the right cutting component 230 in the right region 113 is the same as that of the left cutting component 210.

[0076] Furthermore, step S510 also includes: dividing the cut piece in the right region into a right cutable region and a right non-cutable region, and cutting all the cut pieces in the right region where the right non-cutable region is located by the middle cutting component;

[0077] Wherein, the right cutable area is the cut piece area where the working distance between the right cutting component and the middle cutting component is greater than or equal to the safety distance S when cutting is performed; the right non-cutable area is the cut piece area where the working distance between the right cutting component and the middle cutting component is less than the safety distance S when cutting is performed.

[0078] refer to Figure 4 In conjunction with scenario two, the right cutting component 230 performs a check before cutting the cut piece GHIJ, and the check result shows that the working distance is less than the safe distance. In cases where the distance is less than the safe distance If the cutting area is GHMN, then GHMN is divided into the right non-cuttable area, and the entire right area 113 where GHMN is located is called the processing area 114. All cutting pieces in the processing area 114 are cut by the middle cutting component 220, while the right area 113 where the right cuttable area is located is still cut by the right cutting component 230. Based on the cutting rules of each cutting component of this leather cutting method, the cutting pieces in their respective cutting areas are cut from left to right. Therefore, if the entire area where the right non-cuttable area of ​​a certain cutting piece 120 in the right area 113 is located is divided to be cut by the middle cutting component 220, then when the middle cutting component 220 cuts from left to right to the "processing area 114", the right cutting component 230 has already completed the cutting of the cutting pieces in the right cuttable area. There is no need to wait for the middle cutting component 220 to complete the cutting of all cutting pieces in the middle area 112 before allowing cutting to start, thus reducing waiting time.

[0079] It is worth noting that since the distribution of the cut pieces is not a regular arrangement, after the processing area 114 is determined, the cut pieces 120 included in the processing area 114 are not complete cut pieces, but in most cases, they are parts of the cut pieces. However, the cut pieces in the processing area 114 defined by this method are cut by the middle cutting component 220, which can further improve the efficiency of the three cutting components when cutting leather. The right cutting component 230 does not need to wait for the middle cutting component 220 to complete the cutting before starting, while ensuring the overall processing safety and avoiding collisions between the three cutting components that cause machine stoppage.

[0080] by Figure 3 and Figure 5 Taking the left region 111 and the middle region 112 as examples, the left divisible region and the left indivisible region will be further explained:

[0081] For the cut pieces A`B`C`D` in the central region 112, assuming point A' is the point closest to the left side of the central region 112, when the central cutting component 220 (central cutter 221) cuts at point A', a portion of the central cutting component 220 will enter the range of the left region 111. Since the information of the cut pieces is planned by the system, the horizontal distance between point A' and the left side of the central region 112... Given the known distance, combined with the safe distance Therefore, it can be concluded that when the cutting blade 221 cuts at point A', the right side of the left region 111 is slightly to the left. - The entire range of the distance belongs to the left non-cuttable area of ​​the left trimming component 210. Therefore, the entire area to the left of the left non-cuttable area of ​​the left region 111 belongs to the left cutable area. Similarly, the division principle of the right cutable area and the right non-cuttable area of ​​the right region 113 is the same.

[0082] Figure 6 This is a schematic diagram of a leather cutting device according to an embodiment of this application. The leather cutting device includes a worktable 300, a mounting frame 400, a left cutting component 210, a middle cutting component 220, a right cutting component 230, and a control system.

[0083] The left cutting component 210, the middle cutting component 220 and the right cutting component 230 are mounted on top of the workbench 300 via the mounting bracket 400;

[0084] The left cutting assembly 210 includes a left auxiliary beam 212, a first driving device, and a left cutter 211. The left cutter 211 is mounted on the left auxiliary beam 212 via the first driving device. The first driving device is used to drive the left cutter 211 to reciprocate along the extension direction of the left auxiliary beam 212 and to drive the left cutter 211 to reciprocate up and down.

[0085] The middle cutting assembly 220 includes a middle main beam 222, a second driving device, and a middle cutter 221. The middle cutter 221 is mounted on the middle main beam 222 via the second driving device. The second driving device is used to drive the middle cutter 221 to reciprocate along the extension direction of the middle main beam 222 and to drive the middle cutter 221 to reciprocate up and down.

[0086] The right cutting assembly 230 includes a right auxiliary beam 232, a third driving device, and a right cutter 231. The right cutter 231 is mounted on the right auxiliary beam 232 via the third driving device. The third driving device is used to drive the right cutter 231 to reciprocate along the extension direction of the right auxiliary beam 232 and to drive the right cutter 231 to reciprocate up and down.

[0087] The left auxiliary beam 212, the middle main beam 222, and the right auxiliary beam 232 are arranged in sequence and installed parallel to each other on the mounting frame 400, and are slidably connected to the mounting frame 400; the left cutter 211, the middle cutter 221, and the right cutter 231 are used to cut the leather 110 placed on the workbench 300;

[0088] The control system includes an information acquisition module, a planning and division module, a distance acquisition module, a verification module, and a judgment module. The information acquisition module is used to collect information on the safety distance between adjacent cutting components, leather information, and production demand information. The planning and division module is used to plan the information of the cutting pieces and divide the area into three cutting zones. The distance acquisition module is used to obtain the minimum working distance between any current cutting component and its adjacent cutting components. The verification module is used to verify whether the minimum working distance between any cutting component and its adjacent cutting components is greater than the safety distance S. The judgment module is used to determine whether the cutting of all cutting pieces in the central area has been completed.

[0089] The left cutting component 210, the middle cutting component 220, and the right cutting component 230 are electrically connected to the control system, which controls the left cutting component 210, the middle cutting component 220, and the right cutting component 230 to implement the steps of the leather cutting method described above.

[0090] The left cutting assembly 210 moves on the worktable 300 via a left auxiliary beam 212 mounted on the mounting frame 400. The left auxiliary beam 212 can reciprocate along the left-right direction of the mounting frame 400. Furthermore, the left cutter 211 is mounted on the left auxiliary beam 212 via a first driving device, which can reciprocate along the extension direction of the left auxiliary beam 212, driving the left cutter 211 to move up and down to perform punching. Therefore, the left cutter 211 can move on the worktable 300. Similarly, the middle cutting assembly 220 and the outer cutting assembly 230 operate on the same principle and will not be described further here.

[0091] It is worth noting that since the left cutting assembly 210, the middle cutting assembly 220 and the right cutting assembly 230 each include a left auxiliary beam 212, a middle main beam 222 and a right auxiliary beam 232, and each of them has a certain width, it is impossible for each auxiliary beam to reach any part of the workbench. This is also an important reason for emphasizing the safety distance S in the above embodiments.

[0092] Furthermore, it also includes a conveying device and a scanning device;

[0093] The conveying device is disposed at the inlet end and the outlet end of the workbench 300, and is used to convey the leather 110 from the inlet end into the workbench 300 and from the outlet end out of the workbench 300;

[0094] The scanning device is mounted on the mounting frame 400 and located above the feed end of the worktable 300. The scanning device is used to scan the leather 110.

[0095] The conveying device and the scanning device are respectively electrically connected to the control system.

[0096] The conveying device is located at the inlet and outlet ends of the workbench 300, and is used to smoothly convey the leather into the workbench 300. See [link / reference]. Figure 6The feed end of the workbench 300 is located at the front, and the discharge end is located at the rear. A scanning device is mounted above the feed end of the workbench 300 via a mounting bracket 400. When the conveyor brings leather into the workbench 300 from the feed end, the scanning device scans the leather, acquires its information, and sends it to the information acquisition module. The planning and partitioning module of the control system analyzes and plans the distribution of the cut pieces. The leather entering the workbench 300 is cut into pieces by the control system according to the steps of the leather cutting method via the left cutting assembly 210, the middle cutting assembly 220, and the right cutting assembly 230. After cutting, the cut leather is output through the discharge end by the conveyor.

[0097] Furthermore, this application proposes a readable storage medium storing a computer program that, when run on a processor, executes the leather cutting method described in this application.

[0098] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that, as an alternative implementation, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0099] In addition, the functional modules or units in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0100] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a smartphone, personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes: USB flash drive, portable hard drive, read-only memory (ROM). Various media that can store program code, such as only memory, random access memory (RAM), magnetic disks or optical disks.

[0101] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A method for cutting leather, characterized in that, Including the following steps: S100. Based on the information about the leather and the production needs, plan several pieces of leather. S200. Based on the information of the cut pieces, the leather is divided into three cutting areas: the left area, the middle area, and the right area. The left area is cut by the left cutting component, the middle area is cut by the middle cutting component, and the right area is cut by the right cutting component. Each cutting component cuts the cut pieces of its respective cutting area according to the rule of cutting from left to right and from top to bottom. S300. Before each cutting component cuts each piece of fabric, it verifies whether the minimum working distance between the cutting component and the adjacent cutting component is greater than the safety distance S, wherein the safety distance S is the minimum distance between the two cutters when the two adjacent cutting components do not collide. S410. If the verification result is yes, then the two adjacent cutting components will perform cutting normally until all pieces are cut. S420. If the verification result is negative, determine whether the central area has completed the cutting of all the pieces within the central area. S510. If the judgment result is negative, the left cutting component or the right cutting component pauses operation and performs avoidance, waiting for the middle cutting component to complete the current cutting, and then repeats step S300; step S510 further includes: dividing the cut pieces in the right region into a right cutable area and a right non-cutable area, and having the middle cutting component cut all the cut pieces in the right region where the right non-cutable area is located; wherein, the right cutable area is the cut piece area where the working distance between the right cutting component and the middle cutting component is greater than or equal to the safety distance S when cutting; the right non-cutable area is the cut piece area where the working distance between the right cutting component and the middle cutting component is less than the safety distance S when cutting; S520. If the judgment result is yes, the left cutting component or the right cutting component performs cutting, and the middle cutting component avoids the cut while ensuring a safe distance S, until all the cut pieces in the left area and the right area are cut.

2. The leather cutting method according to claim 1, characterized in that: In step S200, the leather is divided into three cutting regions according to the total perimeter of the cut pieces, so that the total perimeter of the cut pieces in each cutting region is the same.

3. The leather cutting method according to claim 2, characterized in that: The length L of the middle region satisfies L > + ,in, This is the safe distance between the center cutting component and the left cutting component; This is the safe distance between the center cut component and the right cut component.

4. The leather cutting method according to claim 1, characterized in that: Step S510 further includes: dividing the cut piece of the left region into a left cutable area and a left non-cutable area; after the left cutting component completes the cutting of the left cutable area, the operation is paused and step S300 is repeated. Wherein, the left cutable area is the area of ​​the cut piece where, during cutting, the working distance between the left cutting component and the middle cutting component is greater than or equal to the safety distance S; the left non-cuttable area is the area of ​​the cut piece where, during cutting, the working distance between the left cutting component and the middle cutting component is less than the safety distance S.

5. A leather cutting device, characterized in that: Includes a workbench, mounting bracket, left cutting assembly, middle cutting assembly, right cutting assembly, and control system; The left cutting assembly, the middle cutting assembly, and the right cutting assembly are mounted above the workbench via the mounting bracket; The left cutting assembly includes a left auxiliary beam, a first driving device, and a left cutting blade. The left cutting blade is mounted on the left auxiliary beam via the first driving device. The first driving device is used to drive the left cutting blade to reciprocate along the extension direction of the left auxiliary beam and to drive the left cutting blade to reciprocate up and down. The middle cutting assembly includes a middle main beam, a second driving device, and a middle cutter. The middle cutter is mounted on the middle main beam via the second driving device. The second driving device is used to drive the middle cutter to reciprocate along the extension direction of the middle main beam and to drive the middle cutter to reciprocate up and down. The right cutting assembly includes a right auxiliary beam, a third driving device, and a right cutting blade. The right cutting blade is mounted on the right auxiliary beam via the third driving device. The third driving device is used to drive the right cutting blade to reciprocate along the extension direction of the right auxiliary beam and to drive the right cutting blade to reciprocate up and down. The left auxiliary beam, the middle main beam, and the right auxiliary beam are arranged sequentially and parallel to each other on the mounting frame and are slidably connected to the mounting frame; the left cutter, the middle cutter, and the right cutter are used to cut the leather placed on the workbench; The control system includes an information acquisition module, a planning and division module, a distance acquisition module, a verification module, and a judgment module. The information acquisition module is used to collect information on the safety distance between adjacent cutting components, leather information, and production demand information. The planning and division module is used to plan the information of the cutting pieces and divide the area into three cutting zones. The distance acquisition module is used to obtain the minimum working distance between any current cutting component and its adjacent cutting components. The verification module is used to verify whether the minimum working distance between any cutting component and its adjacent cutting components is greater than the safety distance S. The judgment module is used to determine whether the cutting of all cutting pieces in the central area has been completed. The left cutting component, the middle cutting component, and the right cutting component are electrically connected to the control system, which controls the left cutting component, the middle cutting component, and the right cutting component to implement the steps of the leather cutting method as described in any one of claims 1 to 4.

6. The leather cutting equipment according to claim 5, characterized in that: It also includes a conveying device and a scanning device; The conveying device is located at the inlet and outlet of the workbench and is used to convey the leather from the inlet to the workbench and from the outlet to the workbench. The scanning device is mounted on the mounting frame and located above the feed end of the worktable. The scanning device is used to scan the leather. The conveying device and the scanning device are respectively electrically connected to the control system.

7. A readable storage medium, characterized in that, It stores a computer program that, when run on a processor, executes the leather cutting method according to any one of claims 1 to 4.

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