Automatic stacking device

Abstract

The utility model relates to an automatic stacking device which comprises the following components: a plate shearing machine which comprises an upper cutter and a lower cutter and is used for shearing plates; the material sliding frame is used for bearing the plates and enabling the plates to slide to the stacking device; the stacking frame comprises a base support, a first end support and a second end support, a material blocking frame is arranged on the second end support, and a stacking area is formed among the first end support, the material blocking frame and the base support; the centering mechanism is used for centering the plates in the stacking area in the width direction of the base support; the detection assembly comprises a first detection element used for detecting the descending limit of the upper cutter and a second detection element used for detecting the ascending limit of the upper cutter; and the control module is arranged on the machine base, electrically connected with the detection assembly and used for controlling the centering mechanism to execute the centering action. Through the technical means provided by the invention, the stacking flatness of the plate materials can be ensured, and the risk of bending deformation or scrapping of the plate materials in the hoisting process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production equipment, in particular to an automatic palletizing device. Background Art

[0002] At present, most of the existing shearing machine stacking devices are inclined plane sliding mechanism or inclined plane plus roller mechanism, which requires workers to receive and stack materials at the back, and there are safety hazards on site. The stacking of materials is often not neat, and the plate materials are easily bent, deformed or scrapped during the subsequent lifting process. The existing shearing machine stacking device has the problems of high labor cost, low stacking efficiency, and easy bending, deformation or scrapping of plate materials during the lifting process, which leads to increased production costs. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of the utility model is to provide an automatic stacking device to solve the problems of the existing shearing machine stacking device, such as high labor cost, low stacking efficiency, and easy bending, deformation or scrapping of the sheet metal during the lifting process, which leads to increased production costs.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides an automatic palletizing device, comprising:

[0005] The shearing machine comprises a machine base, an upper cutter and a lower cutter, wherein the upper cutter and the lower cutter are arranged on the machine base, and the upper cutter moves along the height direction of the machine base to cooperate with the lower cutter to shear the plate material;

[0006] A sliding rack is used to receive the plate material sheared by the shearing machine. A sliding platform is provided on the sliding rack. The sliding platform is inclined with respect to the horizontal plane. The sliding platform is used to slide the plate material sheared by the shearing machine onto the stacking device.

[0007] A stacking rack comprises a base bracket, a first end bracket and a second end bracket, wherein the first end bracket and the second end bracket are respectively arranged at two ends of the base bracket in a length direction, the first end bracket is provided with a guide tube, the second end bracket is provided with a material blocking rack, a stacking area is formed between the first end bracket, the material blocking rack and the base bracket, the guide tube is used to guide the sheet material on the slide rack into the stacking area, and the material blocking rack is used to block the sheet material in the stacking area along the length direction of the base bracket;

[0008] A centering mechanism, comprising at least two groups of centering modules arranged on both sides of the base support along the width direction, wherein the two groups of centering modules are used to center the sheets in the stacking area along the width direction of the base support;

[0009] A detection assembly, comprising a mounting bracket, a first detection element and a second detection element, wherein the mounting bracket is arranged on the back edge surface of the lower cutter, the first detection element and the second detection element are symmetrically arranged at two ends of the mounting bracket along the length direction of the mounting bracket, the first detection element is used to detect the downward limit of the upper cutter, and the second detection element is used to detect the upward limit of the upper cutter;

[0010] A control module is arranged on the machine base, the control module is electrically connected to the detection component, and the control module is used to control the centering mechanism to perform a centering action.

[0011] Optionally, the material stop frame includes an adjusting rod, a locking sleeve, a top screw, a material stop plate and a sliding sleeve, the locking sleeve is arranged on the second end bracket, the adjusting rod is inserted into the locking sleeve, and the adjusting rod is slidably connected to the locking sleeve, the locking sleeve is threaded with a top screw, and the top screw is used to abut and cooperate with the adjusting rod to lock the adjusting rod in position, the material stop plate is arranged at one end of the adjusting rod away from the locking sleeve along the length direction, the sliding sleeve is connected to the material stop plate, and the sliding sleeve is sleeved on the base bracket, and the sliding sleeve is slidably connected to the base bracket.

[0012] Optionally, the material blocking rack further includes a buffer block, and the buffer block is arranged on a side of the material blocking plate toward the palletizing area along the thickness direction.

[0013] Optionally, the material blocking rack further includes a mounting plate, wherein the mounting plate is connected to the material blocking plate, the mounting plate extends along the width direction of the base bracket, and the mounting plate is used to mount the centering mechanism.

[0014] Optionally, the mounting plate has a plurality of slots evenly distributed along the length direction.

[0015] Optionally, the centering module includes a driving component, a centering component, a fixed frame and a positioning block, the driving component is connected to the fixed frame, the positioning block is arranged on the fixed frame, the positioning block is used to engage with the card slot, the fixed frame is provided with a rotating shaft, the centering component is rotatably arranged on the rotating shaft, and the working end of the driving component is hinged to the centering component.

[0016] Optionally, the driving component is a cylinder, and the first detection element and the second detection element are proximity switches.

[0017] Optionally, the card slot is a U-shaped card slot, and the positioning block is a U-shaped positioning block.

[0018] Optionally, it also includes a solenoid valve, which is electrically connected to the control module and is provided with an air source pipe, an air intake pipe and an air return pipe.

[0019] Optionally, the air inlet pipe and the air return pipe are both provided with a three-way joint, the three-way joint is connected to two air flow pipelines, and the two air flow pipelines are respectively connected to the driving components in the two sets of centering modules.

[0020] As described above, the utility model has the following beneficial effects: after the sheet material enters the shearing machine and reaches the specified size, the upper cutter moves downward and cooperates with the lower cutter to shear the sheet material. When the upper cutter reaches the downward limit, the first detection element detects the downward limit signal of the upper cutter and feeds the signal back to the control module. The control module controls the centering mechanism to perform the centering action. During the action, the cut sheet material slides to the first end bracket through the inclined sliding table, and the sheet material is guided to fall into the stacking area through the guide tube arranged on the first end bracket. The provision of the guide tube can reduce the damage or scratches caused by collision between the sheet material and the first end bracket during the sliding process. The sheet material is limited in the stacking area along the length direction of the base bracket through the material stop frame, so that the sheet material is stacked flat along the length direction of the base bracket in the stacking area, and the sheet material in the stacking area is stacked flat along the width direction of the base bracket through the centering mechanism; when the second detection element detects the upward limit signal of the upper cutter, the control module controls the centering mechanism to restore the initial state. Through the above-mentioned technical means proposed in this application, the stacking of sheet materials can be carried out automatically, and the flatness and consistency of the stacking of sheet materials can be ensured, which effectively reduces the labor intensity of manual stacking, reduces safety hazards, and avoids the risk of bending, deformation or scrapping due to uneven stacking of sheet materials during subsequent lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a schematic structural diagram of an automatic palletizing device shown in an embodiment of the present application;

[0022] Figure 2 Shown is a schematic diagram of the structure of a palletizing rack shown in an embodiment of the present application;

[0023] Figure 3 Shown is a schematic diagram of the structure of the centering module shown in an embodiment of the present application.

[0024] Description of Reference Numerals

[0025] Shearing machine 1, machine base 101, upper cutting knife 102, lower cutting knife 103, sliding rack 2, sliding table 201, stacking rack 3, base bracket 301, first end bracket 302, guide tube 302a, second end bracket 303, material blocking rack 4, adjusting rod 401, locking sleeve 402, top screw 403, material blocking plate 404, sliding sleeve 405, buffer block 406, mounting plate 407, slot 407a, stacking area 5, centering mechanism 6, centering module 601, driving component 601a, centering component 601b, fixing bracket 601c, positioning block 601d, rotating shaft 601e, detection component 7, mounting bracket 701, first detection element 702, second detection element 703, control module 8, solenoid valve 9, air source pipe 901, air inlet pipe 902, air return pipe 903, three-way joint 10, air flow pipeline 11. DETAILED DESCRIPTION

[0026] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] See also Figures 1 to 3 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the utility model in a schematic manner, so the diagram only shows the components related to the utility model rather than being drawn according to the number, shape and size of the components during actual implementation. During actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings attached to this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the utility model without affecting the effect and purpose that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0028] Before describing the embodiments of the utility model in detail, the application environment of the utility model is described first. The technology of the utility model is mainly applied to the field of automated production equipment technology. The utility model is used to solve the problems of the existing shearing machine stacking device, which has high labor costs, low stacking efficiency, and is prone to bending, deformation or scrapping of the plate during the lifting process, resulting in increased production costs.

[0029] Please combine Figures 1 to 3 As shown, the utility model provides an automatic palletizing device.

[0030] In an exemplary embodiment of the present application, the automatic stacking device includes: a shearing machine 1, including a machine base 101, an upper cutter 102 and a lower cutter 103, the upper cutter 102 and the lower cutter 103 are arranged on the machine base 101, the upper cutter 102 moves along the height direction of the machine base 101 and cooperates with the lower cutter 103 to shear the plate; a sliding frame 2, used to receive the plate sheared by the shearing machine 1, and a sliding table 201 is provided on the sliding frame 2, and the sliding table 201 is inclined with respect to the horizontal plane, and the sliding table 201 is used to move the shearing plate The sheet material sheared by the machine 1 slides down to the stacking device; the stacking rack 3 includes a base bracket 301, a first end bracket 302 and a second end bracket 303, the first end bracket 302 and the second end bracket 303 are respectively arranged at both ends of the base bracket 301 along the length direction, the first end bracket 302 is provided with a guide tube 302a, the second end bracket 303 is provided with a material stopper 4, and a stacking area 5 is formed between the first end bracket 302, the material stopper 4 and the base bracket 301, and the guide tube 302a Used to guide the sheet material on the sliding rack 2 into the stacking area 5, the material blocking rack 4 is used to block the sheet material in the stacking area 5 along the length direction of the base bracket 301; the centering mechanism 6 includes at least two groups of centering modules 601 arranged on both sides of the width of the base bracket 301, and the two groups of centering modules 601 are used to center the sheet material in the stacking area 5 along the width direction of the base bracket 301; the detection component 7 includes a mounting bracket 701, a first detection element 702 and a second detection element 703, the mounting bracket 701 is arranged on the back edge surface of the lower cutter 103, the first detection element 702 and the second detection element 703 are symmetrically arranged at both ends of the mounting bracket 701 along the length direction of the mounting bracket 701, the first detection element 702 is used to detect the downward limit of the upper cutter 102, and the second detection element 703 is used to detect the upward limit of the upper cutter 102; the control module 8 is arranged on the machine base 101, the control module 8 is electrically connected to the detection component 7, and the control module 8 is used to control the centering mechanism 6 to perform the centering action.

[0031] In this embodiment, after the sheet material enters the shearing machine 1 and reaches the specified size, the upper cutter 102 moves downward and cooperates with the lower cutter 103 to shear the sheet material. When the upper cutter 102 reaches the downward limit, the first detection element 702 detects the downward limit signal of the upper cutter 102 and feeds the signal back to the control module 8. The control module 8 controls the centering mechanism 6 to perform the centering action. During the action, the cut sheet material slides to the first end bracket 302 through the inclined sliding table 201, and the sheet material is guided to fall into the stacking area 5 through the guide tube 302a provided on the first end bracket 302. , and the guide tube 302a is provided to reduce the collision damage or scratches between the sheet and the first end bracket 302 during the sliding process. The sheet is limited in the length direction of the base bracket 301 in the stacking area 5 by the material stopper 4, so that the sheet is stacked flat along the length direction of the base bracket 301 in the stacking area 5, and the sheet in the stacking area 5 is stacked flat along the width direction of the base bracket 301 by the centering mechanism 6; when the second detection element 703 detects the upward limit signal of the upper cutter 102, the control module 8 controls the centering mechanism 6 to restore the initial state. Through the above-mentioned technical means proposed in this application, the stacking of the sheet can be automated, and the flatness and consistency of the stacking of the sheet can be ensured, which effectively reduces the labor intensity of manual stacking, reduces safety hazards, and avoids the risk of bending, deformation or scrapping due to uneven stacking of the sheet in the subsequent lifting process.

[0032] In an exemplary embodiment of the present application, the material blocking frame 4 includes an adjusting rod 401, a locking sleeve 402, a top screw 403, a material blocking plate 404 and a sliding sleeve 405. The locking sleeve 402 is arranged on the second end bracket 303, the adjusting rod 401 is inserted into the locking sleeve 402, and the adjusting rod 401 is slidably connected to the locking sleeve 402. The locking sleeve 402 is threaded with a top screw 403, and the top screw 403 is used to abut and cooperate with the adjusting rod 401 to lock the adjusting rod 401 in position. The material blocking plate 404 is arranged at one end of the adjusting rod 401 away from the locking sleeve 402 along the length direction, the sliding sleeve 405 is connected to the material blocking plate 404, and the sliding sleeve 405 is sleeved on the base bracket 301, and the sliding sleeve 405 is slidably connected to the base bracket 301.

[0033] In this embodiment, the adjusting rod 401 can be moved along the length direction of the base bracket 301 by loosening the top screw 403 according to the length of the sheet material, thereby driving the baffle plate 404 to move along the length direction of the base bracket 301, and the movement of the baffle plate 404 is achieved through the sliding sleeve 405, and the top screw 403 is tightened to adjust the length area of ​​the stacking area 5 to adapt to the stacking of sheets of different lengths.

[0034] In an exemplary embodiment of the present application, the material stopping rack 4 further includes a buffer block 406 , which is disposed on a side of the material stopping plate 404 facing the palletizing area 5 along the thickness direction.

[0035] In this embodiment, the sheet material slides from the slide table 201 into the stacking area 5, and the sheet material is limited and blocked along the length direction of the base bracket 301 by the material blocking rack 4. A buffer block 406 is set on the side of the material blocking rack 4 facing the stacking area 5. The buffer block 406 is made of flexible material. When the sheet material collides with the buffer block 406, the risk of the sheet material being deformed by impact can be reduced by the buffer block 406.

[0036] In an exemplary embodiment of the present application, the material blocking rack 4 further includes a mounting plate 407 , which is connected to the material blocking plate 404 , and the mounting plate 407 extends along the width direction of the base bracket 301 , and the mounting plate 407 is used to mount the centering mechanism 6 .

[0037] In this embodiment, the length of the mounting plate 407 is greater than the width of the base bracket 301, and the two sets of centering modules 601 are mounted on the mounting plate 407 and are symmetrically distributed on both sides of the base bracket 301 along the width direction. The two sets of centering modules 601 work together to make the sheet materials stacked flat along the width direction of the base bracket 301 in the stacking area 5.

[0038] In an exemplary embodiment of the present application, the mounting plate 407 has a plurality of slots 407 a evenly distributed along the length direction.

[0039] In an exemplary embodiment of the present application, the centering module 601 includes a driving component 601a, a centering component 601b, a fixing frame 601c and a positioning block 601d. The driving component 601a is connected to the fixing frame 601c, the positioning block 601d is arranged on the fixing frame 601c, the positioning block 601d is used to engage with the card slot 407a, the fixing frame 601c is provided with a rotating shaft 601e, the centering component 601b is rotatably arranged on the rotating shaft 601e, and the working end of the driving component 601a is hinged to the centering component 601b.

[0040] In this embodiment, a "U"-shaped groove is provided on the positioning block 601d for snap-fitting with the slot 407a on the mounting plate 407. The snap-fitting between the positioning block 601d and the slot 407a can limit the centering mechanism 6 along the length and width directions of the base bracket 301. By adjusting the snap-fitting position of the positioning block 601d and the slot 407a on the mounting plate 407, the distance between the two sets of centering modules 601 can be adjusted, thereby adapting to the centering operation of sheets of different widths. The driving component 601a is a cylinder driving component 601a, which is fixed on the fixing frame 601c and the positioning block 601d is engaged with the slot 407a on the mounting plate 407 to make the position of the driving component 601a relatively fixed. The working end of the driving component 601a is hinged to the centering component 601b, and the centering component 601b is rotatably connected to the fixing frame 601c through the rotating shaft 601e. When the cylinder is working, the working end of the cylinder extends out to close the two sets of centering components 601b. During the closing process of the centering component 601b, the sheets in the stacking area 5 are stacked flat along the width direction of the base bracket 301.

[0041] In an exemplary embodiment of the present application, the driving component 601 a is a cylinder, and the first detection element 702 and the second detection element 703 are proximity switches.

[0042] In this embodiment, when the first detection element 702 detects the downward limit of the upper cutter 102, the first detection element 702 sends a signal to the control module 8, the control module 8 sends a centering instruction to the centering mechanism 6, and the centering mechanism 6 performs a closing action to stack the sheets on the stacking area 5 flat along the width direction of the base bracket 301; when the second detection element 703 detects the upward limit of the upper cutter 102, the second detection element 703 sends a signal to the control module 8, the control module 8 controls the centering mechanism 6 to restore the initial state, and the centering mechanism 6 opens.

[0043] In an exemplary embodiment of the present application, the slot 407a is a U-shaped slot 407a, and the positioning block 601d is a U-shaped positioning block 601d.

[0044] In an exemplary embodiment of the present application, a solenoid valve 9 is further included. The solenoid valve 9 is electrically connected to the control module 8 , and an air source pipe 901 , an air intake pipe 902 and an air return pipe 903 are provided on the solenoid valve 9 .

[0045] In this embodiment, the solenoid valve 9 is used to control the connection between the air source pipe 901 and the air intake pipe 902 or the connection between the air source pipe 901 and the air return pipe 903. When the centering mechanism 6 performs the centering operation, the solenoid valve 9 controls the air source pipe 901 to be connected with the air intake pipe 902 to provide an air source for the driving component 601a (i.e., the cylinder) as a driving force; when the centering mechanism 6 returns to its initial state, the solenoid valve 9 controls the air source pipe 901 to be connected with the air return pipe 903, the driving component 601a is depressurized, the working end of the cylinder contracts, and the centering mechanism 6 opens.

[0046] In an exemplary embodiment of the present application, a three-way joint 10 is provided on the air inlet pipe 902 and the air return pipe 903, and two air flow pipelines 11 are connected to the three-way joint 10. The two air flow pipelines 11 are respectively connected to the driving components 601a in the two sets of centering modules 601.

[0047] In this embodiment, the two driving components 601a are connected via the three-way connector 10, so that the extension and retraction of the working ends of the two driving components 601a can be performed synchronously.

[0048] Working principle: after the plate enters the shearing machine 1 and reaches the specified size, the upper cutter 102 moves downward and cooperates with the lower cutter 103 to shear the plate. When the upper cutter 102 reaches the downward limit, the first detection element 702 detects the downward limit signal of the upper cutter 102 and feeds the signal back to the control module 8. The control module 8 controls the centering mechanism 6 to perform the centering action. During the action, the cut plate slides to the first end bracket 302 through the inclined sliding table 201, and the plate is guided to fall into the stacking area 5 through the guide tube 302a provided on the first end bracket 302. In addition, the guide tube 302a is provided to reduce the damage or scratches caused by collision between the sheet and the first end bracket 302 during the sliding process. The sheet is limited in the length direction of the base bracket 301 in the stacking area 5 by the material stopper 4, so that the sheet is stacked flat along the length direction of the base bracket 301 in the stacking area 5. The sheet in the stacking area 5 is stacked flat along the width direction of the base bracket 301 by the centering mechanism 6; when the second detection element 703 detects the upward limit signal of the upper cutter 102, the control module 8 controls the centering mechanism 6 to restore the initial state. Through the above-mentioned technical means proposed in this application, the stacking of the sheet can be automated, and the flatness and consistency of the sheet stacking can be ensured, which effectively reduces the labor intensity of manual stacking, reduces safety hazards, and avoids the risk of bending, deformation or scrapping due to uneven stacking of the sheet in the subsequent lifting process.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An automatic palletizing device, characterized in that: include: The shearing machine comprises a machine base, an upper cutter and a lower cutter, wherein the upper cutter and the lower cutter are arranged on the machine base, and the upper cutter moves along the height direction of the machine base to cooperate with the lower cutter to shear the plate material; A sliding rack is used to receive the plate material sheared by the shearing machine. A sliding platform is provided on the sliding rack. The sliding platform is inclined with respect to the horizontal plane. The sliding platform is used to slide the plate material sheared by the shearing machine onto the stacking device. A stacking rack comprises a base bracket, a first end bracket and a second end bracket, wherein the first end bracket and the second end bracket are respectively arranged at two ends of the base bracket in a length direction, the first end bracket is provided with a guide tube, the second end bracket is provided with a material blocking rack, a stacking area is formed between the first end bracket, the material blocking rack and the base bracket, the guide tube is used to guide the sheet material on the slide rack into the stacking area, and the material blocking rack is used to block the sheet material in the stacking area along the length direction of the base bracket; A centering mechanism, comprising at least two groups of centering modules arranged on both sides of the base support along the width direction, wherein the two groups of centering modules are used to center the sheets in the stacking area along the width direction of the base support; A detection assembly, comprising a mounting bracket, a first detection element and a second detection element, wherein the mounting bracket is arranged on the back edge surface of the lower cutter, the first detection element and the second detection element are symmetrically arranged at two ends of the mounting bracket along the length direction of the mounting bracket, the first detection element is used to detect the downward limit of the upper cutter, and the second detection element is used to detect the upward limit of the upper cutter; A control module is arranged on the machine base, the control module is electrically connected to the detection component, and the control module is used to control the centering mechanism to perform a centering action.

2. The automatic palletizing device according to claim 1, characterized in that: The material stop frame includes an adjusting rod, a locking sleeve, a top screw, a material stop plate and a sliding sleeve, the locking sleeve is arranged on the second end bracket, the adjusting rod is inserted into the locking sleeve, and the adjusting rod is slidably connected to the locking sleeve, the locking sleeve is threaded with a top screw, and the top screw is used to abut and cooperate with the adjusting rod to lock the adjusting rod in position, the material stop plate is arranged at one end of the adjusting rod away from the locking sleeve along the length direction, the sliding sleeve is connected to the material stop plate, and the sliding sleeve is sleeved on the base bracket, and the sliding sleeve is slidably connected to the base bracket.

3. The automatic palletizing device according to claim 2, characterized in that: The material blocking rack further comprises a buffer block, and the buffer block is arranged on a side of the material blocking plate facing the palletizing area along the thickness direction.

4. The automatic palletizing device according to claim 2, characterized in that: The material blocking rack also includes a mounting plate, which is connected to the material blocking plate and extends along the width direction of the base bracket. The mounting plate is used to mount the centering mechanism.

5. The automatic palletizing device according to claim 4, characterized in that: The mounting plate is evenly distributed with a plurality of slots along the length direction.

6. The automatic palletizing device according to claim 5, characterized in that: The centering module includes a driving component, a centering component, a fixing frame and a positioning block. The driving component is connected to the fixing frame, the positioning block is arranged on the fixing frame, the positioning block is used to engage with the card slot, the fixing frame is provided with a rotating shaft, the centering component is rotatably arranged on the rotating shaft, and the working end of the driving component is hinged to the centering component.

7. The automatic palletizing device according to claim 6, characterized in that: The driving component is a cylinder, and the first detection element and the second detection element are proximity switches.

8. The automatic palletizing device according to claim 7, characterized in that: The card slot is a U-shaped card slot, and the positioning block is a U-shaped positioning block.

9. The automatic palletizing device according to claim 8, characterized in that: It also includes a solenoid valve, which is electrically connected to the control module and is provided with an air source pipe, an air intake pipe and an air return pipe.

10. The automatic palletizing device according to claim 9, characterized in that: The air inlet pipe and the air return pipe are both provided with three-way joints, and the three-way joints are connected to two air flow pipelines, and the two air flow pipelines are respectively connected to the driving components in the two sets of centering modules.

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