Plate stacking method

Abstract

The invention belongs to the technical field of plate production, and particularly relates to a plate stacking method. The plate stacking method comprises the steps that the sizes of all types of stacks are defined; the stacking types comprise a thin strip stack, a large plate stack and a double-row stack; obtaining the size of the plate; determining the type of the plate according to the size of the plate; the plate types comprise a narrow strip plate, a non-rotatable large plate, a non-rotatable small plate and a rotatable plate; and the plates are placed on the stacks of the corresponding types according to the plate types. The plate stacking method does not depend on the cutting sequence of the large plates, efficient stacking can be carried out under the condition that the multiple cutting machines cut the plates at the same time, and the production efficiency is improved. The target stacks are divided into three types, processing of subsequent different procedures is facilitated, the smoothness of the production process is improved, the method can be compatible with rectangular plates of all sizes, the method adapts to the characteristic that the sizes of the plates in the customized furniture industry are diversified, and the practicability of the algorithm is enhanced. Through reasonable classified placement of the plates and treatment under special conditions, the phenomenon that the plates are suspended too much during stacking is avoided, the situation that the plates are pressed to be broken or stacked is reduced, and smooth production is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal production technology, and specifically relates to a sheet metal stacking method. Background Technology

[0002] In furniture production, panels need to be stacked into piles for easy transport on the production line. Robotic palletizing is a crucial step in the production process. However, current palletizing methods have several problems. Firstly, most methods rely on the cutting sequence of large panels. When multiple cutting machines are working simultaneously, efficient and accurate palletizing becomes difficult, severely impacting production efficiency. Secondly, existing methods have poor compatibility with rectangular panels of different sizes, failing to adequately address the diverse panel dimensions prevalent in the custom furniture industry. Furthermore, the palletizing process requires significant manual intervention, increasing labor costs and increasing the risk of panel damage or stack tipping due to human error. Additionally, if panels cannot fully cover the current layer during stacking, gaps can appear, leading to panel breakage or stack tipping, resulting in production losses. Summary of the Invention

[0003] The purpose of this invention is to provide a plate stacking method to solve the above-mentioned technical problems.

[0004] This application provides a method for stacking sheet metal, including: Define the dimensions of each type of stacking; the types of stacking include: strip stacking, large plate stacking, and double-row stacking. Obtain the dimensions of the sheet metal; The type of sheet metal is determined based on its dimensions; the sheet metal types include narrow strip sheets, large non-rotatable sheets, small non-rotatable sheets, and rotatable sheets; and Place the panels on the appropriate type of stack according to their type.

[0005] In one embodiment of this application, the bottom layer of the stack is provided with a base plate; The dimensions of the plate include: the length and width of the plate; The dimensions of each type of stack include: base plate length, base plate width, maximum stack length, maximum stack width, maximum stack height, maximum stack rotation length, maximum length of plates that can be placed on the stack, minimum length of plates that can be placed on the stack, maximum width of plates that can be placed on the stack, and minimum width of plates that can be placed on the stack.

[0006] In one embodiment of this application, the width of the narrow strip is less than the maximum width of the strip that can be placed in the narrow stack; The length of the non-rotatable large plate exceeds the maximum rotation length for stacking, and the width exceeds half the width of the base plate; The length of the non-rotatable small plate exceeds the maximum rotation length of the stacking, and the width does not exceed half the width of the base plate; The length of the rotatable plate does not exceed the maximum rotation length of the stacking.

[0007] In one embodiment of this application, the method of placing the panels on a stack of corresponding types according to the panel type includes: Place the narrow strips of sheet metal on the stack of thin strips; Place the non-rotatable large plates on the large plate stack; Place the non-rotatable small plate on a double-row stack; and Place the rotatable panels on large or double-row stacks.

[0008] In one embodiment of this application, the method of placing narrow strips on a stack of thin strips includes: placing all strips without rotating them, and arranging them row by row along the length direction from left to right in each layer.

[0009] In one embodiment of this application, the method of placing non-rotatable large plates on a stack of large plates includes: placing the plates without rotating them and centering them in the width direction.

[0010] In one embodiment of this application, the method of placing non-rotatable small plates on a double-row stack includes: placing the plates without rotating them, and placing them in the width direction centered on the upper or lower side.

[0011] In one embodiment of this application, the method of placing the rotatable plate on a large stack or double-row stack includes: The panels are first rotated and placed; and When the rotatable panel on this layer is rotated and the gap between the panels exceeds the preset value, the panel will be moved back to a non-rotating position.

[0012] The beneficial effects of this invention are: Unlike existing technologies, this application provides a panel stacking method, comprising: defining the dimensions of various types of stacks; the stack types include: narrow strip stacks, large panel stacks, and double-row stacks; obtaining panel dimensions; determining panel types based on panel dimensions; the panel types include narrow strip panels, non-rotatable large panels, non-rotatable small panels, and rotatable panels; and placing panels on the corresponding type of stack according to the panel type. This panel stacking method does not rely on the cutting sequence of large panels and can perform efficient stacking even when multiple cutting machines are cutting simultaneously, improving production efficiency. Dividing the target stack into three types facilitates subsequent processing in different procedures, improving the smoothness of the production process. It is compatible with rectangular panels of all sizes, adapting to the diverse panel sizes characteristic of the custom furniture industry, and enhancing the practicality of the algorithm. Through reasonable panel classification and placement, and handling of special cases, excessive hanging of panels during stacking is avoided, reducing panel breakage or stack tipping, and ensuring smooth production.

[0013] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating a preferred embodiment of the plate stacking method of the present invention; Figure 2 This is a schematic diagram of a large plate stack according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of a double-row stack according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of a thin strip stack according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the placement of a rotatable plate according to a preferred embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This application provides a method for stacking sheet metal parts, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0019] See Figure 1 In one embodiment, the panel stacking method includes: defining the dimensions of various types of stacks; the types of stacks include: narrow strip stacks, large plate stacks, and double-row stacks; obtaining panel dimensions; determining panel types based on panel dimensions; the panel types include narrow strip panels, non-rotatable large plates, non-rotatable small plates, and rotatable panels; and placing panels on the corresponding type of stack according to the panel type.

[0020] Specifically, in one application scenario, the dimensions of various types of stacks can be defined at the palletizing station. For example, three stacks can be defined: narrow strip stacks, large plate stacks, and double-row stacks. After the panels are unloaded, they are conveyed to the palletizing station via a conveyor roller. The panel dimensions can be obtained by scanning the QR code on the panel, using visual recognition, etc. Then, the panel type is determined based on the panel dimensions, which can be, but is not limited to, narrow strip panels, non-rotatable large plates, non-rotatable small plates, and rotatable panels. Finally, based on the compatibility of each panel type with the corresponding stack type, automated equipment such as palletizing robots places the panels on the appropriate type of stack.

[0021] Optionally, to prevent the finished plates from being bumped or damaged during transportation, a base plate can be provided at the bottom of the stack. The base plate can be a plate of the same specification; optionally, the base plate is generally 2440mm long and 600mm wide.

[0022] Optionally, the dimensions of each type of stack include: base plate length, base plate width, maximum stack length, maximum stack width, maximum stack height, maximum stack rotation length, maximum length of plates that can be placed on the stack, minimum length of plates that can be placed on the stack, maximum width of plates that can be placed on the stack, and minimum width of plates that can be placed on the stack.

[0023] It should be noted that, among the dimensions of various stacking types, the plate length, base plate width, maximum stack length, maximum stack width, maximum stack height, and maximum rotation length can be uniform across different stacking types. The maximum and minimum lengths, widths, and heights of plates that can be placed on a stack can be set according to subsequent process classifications. The principle is that plates that can be produced at the same workstation can be placed on the same stack. For example, because narrow strip plates are very narrow, subsequent processing may only involve segmentation along their length, requiring them to be uniformly placed on a thin strip stack. Therefore, the maximum width of plates that can be placed on a thin strip stack must be less than the minimum width of plates that can be placed on a double-row stack.

[0024] Furthermore, the width of the narrow strip plate is less than the maximum width of the plates that can be placed in the thin strip stack; the length of the non-rotatable large plate exceeds the maximum rotation length of the stack and the width exceeds half the width of the base plate; the length of the non-rotatable small plate exceeds the maximum rotation length of the stack and the width does not exceed half the width of the base plate; the length of the rotatable plate does not exceed the maximum rotation length of the stack.

[0025] Furthermore, the method of placing panels on corresponding types of stacks according to panel type includes: placing narrow strip panels on thin strip stacks; placing non-rotatable large panels on large panel stacks; placing non-rotatable small panels on double-row stacks; and placing rotatable panels on large panel stacks or double-row stacks.

[0026] For details, see Figure 4 When the stack is a narrow stack and the width of the board is less than the maximum width that the narrow stack can hold, all boards are placed without rotation. The length of the board is in the same direction as the length of the base plate, and each layer is arranged from left to right and from top to bottom. When a row is not enough, the next row is moved to continue arranging. When a layer is full, the next layer is moved directly.

[0027] For details, see Figure 2 When the length of a panel exceeds the maximum rotation length for stacking and the width exceeds half the width of the base plate, this type of panel is placed without rotation, and its width is centered on the large panel stack.

[0028] For details, see Figure 3 When the length of a panel exceeds the maximum rotation length for stacking, but the width does not exceed half the width of the base plate, this type of panel cannot be placed in a large panel stack. It can only be placed in a double-row stack. When placing it, it should be placed without rotation, with the width centered on the top or bottom side to form two rows.

[0029] For details, see Figure 5Since the length of the rotatable panel does not exceed the maximum rotation length for stacking, it can be rotated 90 degrees, i.e., placed longitudinally, to make full use of the base plate. These panels are first rotated for placement; and when the gap between panels exceeds a preset value after rotation, the panels are returned to a non-rotated placement.

[0030] In this implementation, after the rotatable panels are rotated, the gaps between them become too large, which may cause upper panels, such as large or small non-rotatable panels, to be suspended in the middle. Excessive suspension can easily lead to panel breakage or stack collapse. Therefore, restoring the rotatable panels to a non-rotating position reduces the gaps and improves stacking stability.

[0031] In summary, the plate stacking method of the present invention has the following advantages: 1. This method does not depend on the cutting sequence of large plates and can efficiently stack plates when multiple cutting machines are cutting simultaneously, thus improving production efficiency.

[0032] 2. It can be compatible with rectangular panels of all sizes, adapting to the diverse panel sizes in the custom furniture industry and enhancing the practicality of the algorithm.

[0033] 3. It can reduce the number of manual interventions in the palletizing process to less than 5%, thereby reducing labor costs and lowering the probability of problems caused by human error.

[0034] 4. By properly classifying and placing the panels and handling special situations, we avoided excessive hanging of panels during stacking, reduced the occurrence of panels breaking or collapsing, and ensured the smooth progress of production.

[0035] 5. Dividing the target stack into three types facilitates the handling of different subsequent processes and improves the smoothness of the production process.

[0036] It should be noted that all the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0037] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0040] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0041] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0042] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification.

Claims

1. A method for stacking sheet metal parts, characterized in that, include: Define the dimensions of each type of stack; The types of stacking include: strip stacking, large plate stacking, and double-row stacking; Obtain the dimensions of the sheet metal; The type of sheet metal is determined based on its dimensions; the sheet metal types include narrow strip sheets, large non-rotatable sheets, small non-rotatable sheets, and rotatable sheets; and Place the panels on the appropriate type of stack according to their type.

2. The plate stacking method according to claim 1, characterized in that, The bottom layer of the stack is provided with a base plate; The dimensions of the plate include: the length and width of the plate; The dimensions of each type of stack include: base plate length, base plate width, maximum stack length, maximum stack width, maximum stack height, maximum stack rotation length, maximum length of plates that can be placed on the stack, minimum length of plates that can be placed on the stack, maximum width of plates that can be placed on the stack, and minimum width of plates that can be placed on the stack.

3. The plate stacking method according to claim 2, characterized in that, The width of the narrow strip is less than the maximum width of the strip that can be placed in the narrow stack; The length of the non-rotatable large plate exceeds the maximum rotation length for stacking, and the width exceeds half the width of the base plate; The length of the non-rotatable small plate exceeds the maximum rotation length of the stacking, and the width does not exceed half the width of the base plate; The length of the rotatable plate does not exceed the maximum rotation length of the stacking.

4. The plate stacking method according to claim 3, characterized in that, The method of placing panels on stacks of corresponding types according to panel type includes: Place the narrow strips of sheet metal on the stack of thin strips; Place the non-rotatable large plates on the large plate stack; Place the non-rotatable small plate on a double-row stack; and Place the rotatable panels on large or double-row stacks.

5. The plate stacking method according to claim 4, characterized in that, The method of placing narrow strips on a stack of thin strips includes placing all strips without rotating them, and arranging them row by row along the length direction from left to right in each layer.

6. The plate stacking method according to claim 4, characterized in that, The method for placing non-rotatable large plates on a stack of large plates includes: placing the plates without rotating them and centering them in the width direction.

7. The plate stacking method according to claim 4, characterized in that, The method for placing non-rotatable small plates on a double-row stack includes: placing the plates without rotating them, and centering them on the upper or lower side in the width direction.

8. The plate stacking method according to claim 4, characterized in that, The method of placing rotatable plates on large stacks or double-row stacks includes: The panels are first rotated and placed; and When the rotatable panel on this layer is rotated and the gap between the panels exceeds the preset value, the panel will be moved back to a non-rotating position.

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