CN116101791A

CN116101791A - Stacking pretreatment system

Info

Publication number: CN116101791A
Application number: CN202211649476.9A
Authority: CN
Inventors: 李亮; 周惠婷; 陈笑; 孙继德
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-12

Abstract

The invention provides a palletizing pretreatment system. The palletizing pretreatment system comprises: a work table; the first transfer device is used for transferring a workpiece, and the workpiece is provided with a flat surface and an irregular surface; the adjusting part of the adjusting device is used for adjusting the workpiece to the workbench so that the flat surface of the workpiece faces the workbench; the positioning component is used for limiting the adjusted workpiece in a preset area; the first detection device is used for detecting whether the workpiece is located in a preset area or not; the second transfer device is used for transferring the workpieces subjected to stacking to a preset position; the control module is connected with the first transfer device, the first detection device and the second transfer device; when the first detection device detects that the workpiece is located in a preset area, the first transfer device is controlled to place another workpiece on the workpiece; or controlling the second transfer device to transfer the at least two workpieces after the stacking is completed to a preset position. The invention effectively solves the problem of lower stacking efficiency of the stacking system in the prior art.

Description

Stacking pretreatment system

Technical Field

The invention relates to the technical field of stacking, in particular to a stacking pretreatment system.

Background

At present, in order to reduce the space required for placing the chassis footing of the air conditioner external unit, and facilitate the storage and management of the chassis footing of the air conditioner external unit by staff, the chassis footing of the air conditioner external unit is usually required to be conveyed into a stacking system so as to perform stacking treatment on the chassis footing of the air conditioner external unit.

However, due to the shape of the chassis footing of the air conditioner external unit, the palletizing robot can only perform palletizing operation on the chassis footing of the air conditioner external unit at a time, and the palletizing efficiency is low.

Disclosure of Invention

The invention mainly aims to provide a stacking pretreatment system which is used for solving the problem of low stacking efficiency of a stacking system in the prior art.

To achieve the above object, the present invention provides a palletizing pretreatment system, comprising: a work table; the first transfer device is used for transferring a workpiece, and the workpiece is provided with a flat surface and an irregular surface; the adjusting device is arranged on the workbench and comprises an adjusting part, wherein the adjusting part is used for adjusting the workpiece to the workbench so as to enable the flat surface of the workpiece to face the workbench; the positioning component is arranged on the workbench and used for limiting the adjusted workpiece in a preset area; the first detection device is used for detecting whether the workpiece is positioned in a preset area; the second transfer device is used for transferring the workpieces subjected to stacking to a preset position; the control module is connected with the first transfer device, the first detection device and the second transfer device; when the first detection device detects that the workpiece is located in a preset area, the first transfer device is controlled to place another workpiece on the workpiece; or controlling the second transfer device to transfer the at least two workpieces after the stacking is completed to a preset position.

Further, the palletizing pretreatment system further comprises: the second detection device is connected with the control module and is used for detecting the height value of the workpiece in the preset area; when the first detection device detects that the workpiece is located in the preset area and the detection value of the second detection device is smaller than the preset height value, the first transfer device is controlled to place another workpiece on the workpiece; when the first detection device detects that the workpieces are located in the preset area and the detection value of the second detection device is larger than or equal to the preset height value, the second transfer device is controlled to transfer at least two workpieces after stacking to the preset position.

Further, when the first detecting device does not detect the workpiece, the first transferring device is controlled to transfer the workpiece to the adjusting device.

Further, the adjusting device includes: the support structure is arranged on the workbench and is provided with a support surface, a first included angle is formed between the support surface and the table top of the workbench, and the support surface is used for supporting a workpiece; the adjusting part is telescopically arranged relative to the supporting structure so as to push the workpiece on the supporting surface onto the table top.

Further, the adjusting device also comprises a driving cylinder, and a cylinder body or a piston rod of the driving cylinder is an adjusting part; the support structure comprises: a first frame; the second frame is connected with the first frame, and is provided with a supporting surface, and the adjusting part is telescopically arranged in the second frame in a penetrating way and is positioned above the middle part of the second frame.

Further, the second frame is pivotally connected to the first frame, and the support structure further comprises: the first driving device is in driving connection with the second frame to drive the second frame to rotate around the first frame so as to adjust the size of the first included angle.

Further, the positioning assembly includes: the second driving device is used for driving the adjusted workpiece to move along the first direction; the first stopping structure is arranged opposite to the second driving device and used for stopping the adjusted workpiece; wherein, the first direction is the second contained angle setting with the width direction of workstation.

Further, the positioning assembly further comprises: the third driving device is used for driving the adjusted workpiece to move along the second direction; the second stopping structure is arranged opposite to the third driving device and is used for stopping the adjusted workpiece; the second direction is arranged at a third included angle with the length direction of the workbench, and the stop areas of the first stop structure and the second stop structure are preset areas.

Further, the second stop structure is connected with the control module and is movably arranged on the workbench, and the second stop structure is provided with a stop state surrounding a preset area and an avoidance state moving to the lower part of the workbench; after the workpieces are overlapped, the second stop structure is controlled to move from the stop state to the avoidance state.

Further, the workbench is provided with a through hole for the second stop structure to pass through, and the second stop structure can move in a lifting manner through the through hole.

By applying the technical scheme of the invention, the first transfer device of the stacking pretreatment system is used for transferring workpieces, the workpieces are provided with flat surfaces and irregular surfaces, the workbench is provided with an adjusting assembly and a positioning assembly, the adjusting assembly comprises an adjusting part, the adjusting part is used for adjusting the workpieces to the workbench so that the flat surfaces of the workpieces face the workbench, the positioning assembly is used for limiting the adjusted workpieces in a preset area, the first detection device is used for detecting whether the workpieces are positioned in the preset area, the second transfer device is used for transferring the workpieces subjected to stacking to a preset position, and the control module is connected with the first transfer device, the first detection device and the second transfer device. Therefore, the workpiece is transferred onto the adjusting device through the first transferring device, the leveling surface of the workpiece is adjusted to face the workbench through the adjusting device, the workpiece is limited in the preset area by the positioning assembly, the first detecting device detects that the workpiece is located in the preset area, the control module controls the first transferring device to place another workpiece on the workpiece to finish stacking of a plurality of workpieces, and then controls the second transferring device to synchronously transfer at least two workpieces after stacking to the preset position, so that the second transferring device can carry out stacking treatment on the at least two workpieces in a single transferring action, the problem that stacking efficiency of a stacking system in the prior art is low is solved, and stacking efficiency of the second transferring device is improved.

Compared with a stacking system in the prior art, the second transfer device in the application can transfer and stack at least two workpieces in a single transfer action, so that the stacking efficiency of the second transfer device is improved to a greater extent. Meanwhile, the whole process from the blanking to the stacking of the workpieces is automatic treatment, manual operation is not needed, manpower resources are saved, and the production cost of the workpieces is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a top view of an embodiment of a palletizing pretreatment system according to the present invention;

FIG. 2 shows a front view of the palletizing pretreatment system of FIG. 1;

fig. 3 shows a schematic perspective view of the palletizing pretreatment system of fig. 1 after removal of the first and second transfer devices.

Wherein the above figures include the following reference numerals:

10. a work table; 11. a through hole; 20. a first transfer device; 30. an adjusting device; 31. a support structure; 311. a support surface; 312. a first frame; 313. a second frame; 32. a drive cylinder; 321. a cylinder; 322. a piston rod; 40. a positioning assembly; 41. a second driving device; 42. a first stop structure; 43. a third driving device; 44. a second stop structure; 50. and a second transfer device.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.

In order to solve the lower problem of pile up neatly efficiency of pile up neatly system among the prior art, this application provides a pile up neatly pretreatment systems.

As shown in fig. 1 to 3, the palletizing pretreatment system includes a workbench 10, a first transferring device 20, an adjusting device 30, a positioning assembly 40, a first detecting device, a second transferring device 50 and a control module, wherein the first transferring device 20 is used for transferring workpieces, and the workpieces have flat surfaces and irregular surfaces. The adjusting device 30 is disposed on the table 10, and the adjusting device 30 includes an adjusting portion for adjusting the workpiece onto the table 10 so that the flat surface of the workpiece faces the table 10. The positioning assembly 40 is disposed on the workbench 10, and the positioning assembly 40 is used for limiting the adjusted workpiece in a preset area. The first detection device is used for detecting whether the workpiece is located in a preset area. The second transferring device 50 is used for transferring the stacked workpieces to a preset position. The control module is connected to the first transfer device 20, the first detection device and the second transfer device 50. Wherein when the first detecting device detects that the workpiece is located in the preset area, the first transferring device 20 is controlled to place another workpiece on the workpiece; alternatively, the second transfer device 50 is controlled to transfer the at least two workpieces after the stacking is completed to a preset position.

By applying the technical scheme of the embodiment, the first transferring device 20 of the palletizing pretreatment system is used for transferring workpieces, the workpieces have flat surfaces and irregular surfaces, the workbench 10 is provided with an adjusting device 30 and a positioning assembly 40, the adjusting device 30 comprises an adjusting part, the adjusting part is used for adjusting the workpieces to the workbench so that the flat surfaces of the workpieces face the workbench 10, the positioning assembly 40 is used for limiting the adjusted workpieces in a preset area, and the first detecting device is used for detecting whether the workpieces are positioned in the preset area; the second transferring device 50 is used for transferring the stacked workpieces to a preset position, and the control module is connected to the first transferring device 20, the first detecting device and the second transferring device 50. In this way, the workpieces are transferred onto the adjusting device 30 through the first transferring device 20, the leveling surface of the workpieces is adjusted to face the workbench 10 by the adjusting device 30, the workpiece is limited in the preset area by the positioning component 40, the first detecting device detects that the workpieces are located in the preset area, the control module controls the first transferring device 20 to place another workpiece on the workpieces to finish stacking of a plurality of workpieces, and then controls the second transferring device 50 to synchronously transfer at least two workpieces after stacking to the preset position, so that the second transferring device 50 can carry out stacking processing on the at least two workpieces in a single transferring action, further the problem that stacking efficiency of a stacking system in the prior art is low is solved, and stacking efficiency of the second transferring device 50 is improved.

Compared with a stacking system in the prior art, the second transfer device 50 in the embodiment can transfer and stack at least two workpieces in a single transfer action, so that the stacking efficiency of the second transfer device is improved to a greater extent. Meanwhile, the whole process from the blanking to the stacking of the workpieces is automatic treatment, manual operation is not needed, manpower resources are saved, and the production cost of the workpieces is reduced.

In this embodiment, when at least two workpieces are stacked, the irregular surfaces of the two workpieces are disposed toward each other such that the integral flat surface formed by the two is oriented toward the top of the table 10 and the second transfer device 50.

In this embodiment, the palletizing preprocessing system further includes a second detection device, where the second detection device is connected with the control module, and the second detection device is used to detect a height value of the workpiece in the preset area. When the first detecting device detects that the workpiece is located in the preset area and the detected value of the second detecting device is smaller than the preset height value, the first transferring device 20 is controlled to place another workpiece on the workpiece. When the first detection device detects that the workpieces are located in the preset area and the detection value of the second detection device is larger than or equal to the preset height value, the second transfer device 50 is controlled to transfer at least two workpieces after stacking to the preset position. In this way, the control module can automatically control the action of the first transferring device 20 or the second transferring device 50 according to the detection value of the second detecting device, so as to stack two workpieces or transfer and stack the stacked workpieces, thereby further improving the automation degree of the stacking pretreatment system.

Specifically, when the first detection device detects that the workpiece is located in the preset area and the detection value of the second detection device is smaller than the preset height value, the control module judges that only one workpiece is located in the preset area, and at the moment, the first transfer device 20 needs to be controlled to directly transfer and stack the other workpiece on the workpiece; when the first detection device detects that the workpiece is located in the preset area and the detection value of the second detection device is greater than or equal to the preset height value, the control module judges that two workpieces (stacked workpieces) exist in the preset area, and at the moment, the second transfer device 50 needs to be controlled to synchronously transfer and stack the two stacked workpieces.

In the present embodiment, when the first detecting means does not detect the workpiece, the first transporting means 20 is controlled to transport the workpiece onto the adjusting means 30. Like this, control module can carry out automatic unloading according to the detection value control first transfer device 20 of first detection device, has further promoted the degree of automation of pile up neatly preprocessing system.

Specifically, if the first detecting device does not detect the workpiece, the workpiece (stacked workpiece) in the preset area is transferred and stacked by the second transferring device 50, and no workpiece is on the workbench 10, and at this time, the control module controls the first transferring device 20 to transfer the workpiece to the adjusting device 30, so as to complete the blanking action and start a new round of stacking pretreatment process.

As shown in fig. 1 to 3, the adjusting device 30 includes a support structure 31, the support structure 31 is disposed on the table 10, the support structure 31 has a support surface 311, a first included angle is formed between the support surface 311 and a surface of the table 10, and the support surface 311 is used for supporting a workpiece. Wherein the adjustment portion is telescopically arranged relative to the support structure 31 to push a workpiece on the support surface 311 onto the table top. In this way, the work is supported by the support surface 311 to ensure the placement stability of the work on the adjustment device 30. Meanwhile, the workpiece is pushed down by the adjusting part, so that the flat surface of the workpiece is contacted with the table surface of the workbench 10, and the irregular surface of the workpiece faces to the side far away from the table surface, thereby improving the placement stability of the workpiece on the workbench 10 and facilitating the superposition of another workpiece on the workpiece.

In this embodiment, in order to increase the friction force between the workpiece and the conveyor belt during the conveying process, the irregular surface of the workpiece contacts the conveyor belt, after the workpiece is conveyed to the palletizing pretreatment system, the first transfer device 20 grabs the workpiece, and the flat surface of the workpiece faces the first transfer device 20, if the workpiece is directly placed on the workbench 10, the irregular surface of the workpiece contacts the workbench 10, so that the workpiece cannot be stably placed on the workbench 10, and the workpiece is turned over by the adjusting device 30, so that the contact between the flat surface of the workpiece and the workbench can be ensured, and the placement stability of the workpiece is further improved.

Optionally, the adjusting device 30 further includes a driving cylinder 32, and a cylinder body 321 or a piston rod 322 of the driving cylinder 32 is an adjusting portion. The support structure 31 includes a first frame 312 and a second frame 313, the second frame 313 is connected to the first frame 312, the second frame 313 has a support surface 311, and the adjustment part is telescopically inserted into the second frame 313 and is located above the middle of the second frame 313. Therefore, on one hand, the formation of the adjusting part is simpler, and the adjusting part is easy to process and realize, so that the processing difficulty of staff is reduced; on the other hand, when the workpiece is driven to turn by the driving cylinder 32, the workpiece can turn towards the workbench 10, so that the flat surface of the workpiece is contacted with the surface of the workbench 10, and the use reliability of the adjusting device 30 is improved.

In the present embodiment, the piston rod 322 of the drive cylinder 32 is an adjustment portion to drive the workpiece to be turned by the telescopic movement of the piston rod 322.

In other embodiments not shown in the drawings, the cylinder body of the driving cylinder is an adjusting portion to drive the workpiece to be turned over by the cylinder body.

Optionally, the second frame 313 is pivotally connected to the first frame 312, and the support structure 31 further includes a first driving device that is drivingly connected to the second frame 313 to drive the second frame 313 to rotate about the first frame 312 to adjust the first angle. Thus, the size of the first included angle can be adjusted according to parameters such as the specification, the size and the gravity center of the workpiece, so as to improve the support stability of the support structure 31 on the workpiece. Meanwhile, the first included angle is automatically adjusted through the first driving device, and the automation degree of the stacking pretreatment system is improved.

In this embodiment, the first included angle has a size of 105 °.

It should be noted that the value of the first included angle is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the first included angle is 95 °, or 100 °, or 110 °, or 115 °, or 120 °, or 125 °.

Optionally, the positioning assembly 40 includes a second driving device 41 and a first stop structure 42, where the second driving device 41 is used to drive the adjusted workpiece to move in the first direction. The first stopping structure 42 is disposed opposite to the second driving device 41, and is used for stopping the adjusted workpiece. Wherein the first direction forms a second angle with the width direction of the table 10. In this way, the second driving device 41 drives the adjusted workpiece to move in the first direction until the workpiece and the first stop structure 42 contact each other, so that the workpiece enters into the preset area in the first direction.

In this embodiment, the second angle is 90 °, and the first direction coincides with the longitudinal direction of the table 10.

It should be noted that the value of the second included angle is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the second included angle is 75 °, or 80 °, or 85 °, or 95 °, or 100 °, or 105 °, or 110 °.

Optionally, the positioning assembly 40 further includes a third driving device 43 and a second stop structure 44, where the third driving device 43 is used to drive the adjusted workpiece to move in the second direction. The second stop structure 44 is disposed opposite to the third driving device 43 for stopping the adjusted workpiece. The second direction forms a third angle with the length direction of the workbench 10, and the stop areas of the first stop structure 42 and the second stop structure 44 are preset areas. In this way, the adjusted workpiece is driven by the third driving device 43 to move in the second direction until the workpiece and the second stop structure 44 contact each other, so as to ensure that the workpiece enters the preset area in the second direction. Meanwhile, the workpieces can be limited in a preset area under the combined action of the positioning assembly 40, so that the stacking accuracy of the subsequent workpieces is improved.

In this embodiment, the third angle is 90 °, and the second direction coincides with the width direction of the table 10.

It should be noted that the value of the third included angle is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the third included angle is 75 °, or 80 °, or 85 °, or 95 °, or 100 °, or 105 °, or 110 °.

In the present embodiment, the second stopping structure 44 is connected to the control module and is movably disposed on the table 10, and the second stopping structure 44 has a stopping state surrounding the first stopping structure 42 to form a predetermined area and a avoiding state moving to a position below the table 10. Wherein, after the workpieces are stacked, the second stop structure 44 is controlled to move from the stop state to the avoiding state. In this way, when the workpieces are positioned or stacked, the second stop structure 44 and the first stop structure 42 are both in the stop state, so that on one hand, the positions of the adjusted workpieces can be limited, the adjusted workpieces are ensured to be in a preset area, and further, the stacking accuracy of the subsequent workpieces is improved; on the other hand, the position of the stacked workpieces can be limited, so that the grabbing accuracy of the subsequent second transferring device 50 is improved; after the workpieces are stacked, the second stop structure 44 is in an avoidance state to avoid the movement path of the second transfer device 50, so that the second transfer device 50 can grasp the stacked workpieces.

Specifically, the second stopping structure 44 includes a fourth driving device and a stopping portion, where the fourth driving device is in driving connection with the stopping portion to drive the stopping portion to move, and the stopping portion is used for stopping the adjusted workpiece. The control module is connected with the fourth driving device to control the operation state of the fourth driving device. When the first detection device detects that the workpiece is located in the preset area and the detection value of the second detection device is larger than or equal to the preset height value, the control module controls the fourth driving device to operate so as to drive the stop part to move to an avoidance state.

As shown in fig. 1 to 3, the table 10 has a through hole 11 for passing the second stopper structure 44 therethrough, and the second stopper structure 44 is liftably moved through the through hole 11. In this way, the above-mentioned arrangement of the through hole 11 enables, on the one hand, the lifting movement of the second stop structure 44 through the table 10, so as to realize the switching of the second stop structure 44 between the stop state and the escape state; on the other hand, the movement path of the second stop structure 44 can be shortened, so that the second stop structure 44 can be switched between different working states more quickly and sensitively.

Optionally, the palletizing pretreatment system further comprises a buffer disposed on the tabletop of the table 10. Like this, the buffer can cushion the collision between work piece and the workstation 10 to avoid work piece and workstation 10 to collide each other and lead to both to damage, not only prolonged workstation 10's life, also reduced pile up neatly preprocessing system's running cost.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

the first transfer device of the stacking pretreatment system is used for transferring workpieces, the workpieces are provided with flat surfaces and irregular surfaces, an adjusting assembly and a positioning assembly are arranged on a workbench, the adjusting assembly comprises an adjusting part, the adjusting part is used for adjusting the workpieces to the workbench so that the flat surfaces of the workpieces face the workbench, the positioning assembly is used for limiting the adjusted workpieces in a preset area, the first detection device is used for detecting whether the workpieces are located in the preset area, the second transfer device is used for transferring the workpieces after stacking to a preset position, and the control module is connected with the first transfer device, the first detection device and the second transfer device. Therefore, the workpiece is transferred onto the adjusting device through the first transferring device, the leveling surface of the workpiece is adjusted to face the workbench through the adjusting device, the workpiece is limited in the preset area by the positioning assembly, the first detecting device detects that the workpiece is located in the preset area, the control module controls the first transferring device to place another workpiece on the workpiece to finish stacking of a plurality of workpieces, and then controls the second transferring device to synchronously transfer at least two workpieces after stacking to the preset position, so that the second transferring device can carry out stacking treatment on the at least two workpieces in a single transferring action, the problem that stacking efficiency of a stacking system in the prior art is low is solved, and stacking efficiency of the second transferring device is improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A palletizing pretreatment system, comprising:

a work table (10);

a first transfer device (20) for transferring a workpiece, the workpiece having a flat surface and an irregular surface;

an adjusting device (30) provided on the table (10), the adjusting device (30) including an adjusting portion for adjusting the workpiece onto the table (10) so that a flat surface of the workpiece faces the table (10);

the positioning assembly (40) is arranged on the workbench (10), and the positioning assembly (40) is used for limiting the adjusted workpiece in a preset area;

the first detection device is used for detecting whether the workpiece is located in the preset area or not;

a second transfer device (50) for transferring the stacked workpieces to a preset position;

the control module is connected with the first transferring device (20), the first detecting device and the second transferring device (50);

wherein when the first detection device detects that the workpiece is positioned in the preset area, the first transfer device (20) is controlled to place another workpiece on the workpiece; or controlling the second transfer device (50) to transfer at least two workpieces after being stacked to the preset position.

2. Palletizing pretreatment system according to claim 1, characterized in that it further comprises:

the second detection device is connected with the control module and is used for detecting the height value of the workpiece in the preset area;

when the first detection device detects that the workpiece is located in the preset area and the detection value of the second detection device is smaller than a preset height value, the first transfer device (20) is controlled to place another workpiece on the workpiece; and when the first detection device detects that the workpiece is positioned in the preset area and the detection value of the second detection device is larger than or equal to the preset height value, controlling the second transfer device (50) to transfer at least two workpieces after being stacked to the preset position.

3. Palletizing pretreatment system according to claim 1, characterized in that the first transfer means (20) are controlled to transfer a workpiece onto the adjustment means (30) when the first detection means do not detect the workpiece.

4. Palletizing pretreatment system according to claim 1, characterized in that said adjustment device (30) comprises:

the support structure (31) is arranged on the workbench (10), the support structure (31) is provided with a support surface (311), a first included angle is formed between the support surface (311) and the table top of the workbench (10), and the support surface (311) is used for supporting a workpiece;

wherein the adjustment portion is telescopically arranged relative to the support structure (31) to push a workpiece located on the support surface (311) onto the table top.

5. Palletizing pretreatment system according to claim 4, characterized in that the adjustment device (30) further comprises a drive cylinder (32), the cylinder body (321) or piston rod (322) of the drive cylinder (32) being the adjustment portion; the support structure (31) comprises:

a first frame (312);

and a second frame (313) connected to the first frame (312), wherein the second frame (313) has the support surface (311), and the adjustment section is telescopically inserted into the second frame (313) and is positioned above the middle of the second frame (313).

6. Palletizing pretreatment system according to claim 5, characterized in that said second frame (313) is pivotably connected with said first frame (312), said support structure (31) further comprising:

the first driving device is in driving connection with the second frame (313) so as to drive the second frame (313) to rotate around the first frame (312) to adjust the size of the first included angle.

7. Palletizing pretreatment system according to claim 1, characterized in that said positioning assembly (40) comprises:

a second driving device (41) for driving the adjusted workpiece to move along a first direction;

a first stop structure (42), the first stop structure (42) being arranged opposite to the second drive device (41) for stopping the adjusted workpiece; wherein the first direction and the width direction of the workbench (10) form a second included angle.

8. Palletizing pretreatment system according to claim 7, characterized in that said positioning assembly (40) further comprises:

third driving means (43) for driving the adjusted workpiece to move in a second direction;

a second stop structure (44), the second stop structure (44) being arranged opposite to the third driving device (43) for stopping the adjusted workpiece; the second direction and the length direction of the workbench (10) form a third included angle, and the stop areas of the first stop structure (42) and the second stop structure (44) are the preset areas.

9. Palletizing pretreatment system according to claim 8, characterized in that the second stop structure (44) is connected to the control module and is movably arranged on the table (10), the second stop structure (44) having a stop state surrounding the first stop structure (42) forming the preset zone and a clear state moving under the table (10); wherein, after the workpieces are stacked, the second stop structure (44) is controlled to move from the stop state to the avoiding state.

10. Palletizing pretreatment system according to claim 8, characterized in that the table (10) has a through-hole (11) for the passage of the second stop structure (44), the second stop structure (44) being movable up and down through the through-hole (11).