An automatic stacking line for pallets

Abstract

This utility model provides a material tray for an automatic stacking line, suitable for automatic stacking lines, comprising: a material tray body, the top surface of which is used to support materials; positioning grooves, recessed on the bottom surface of the material tray body, which are adapted to positioning components on the automatic stacking line to limit the relative position of the material tray body; at least two positioning grooves are provided, and at least two positioning grooves are arranged opposite each other; and a connecting hole, which is provided through the material tray body for a lifting component on the automatic stacking line to pass through and lift the materials, extending along the height direction. In this utility model, the positioning grooves ensure accurate positioning of the material tray on the automatic stacking line, and the connecting hole serves as a channel for a cylinder, enabling efficient lifting and movement of materials. This avoids the difficulty in gripping materials due to the thinness of the silicon steel sheets, solving the technical problem in related technologies where silicon steel sheet material trays cannot be adapted to automatic stacking production lines.

Description

Technical Field

[0001] This utility model relates to the field of transformer core production technology, specifically to an automatic stacking wire material tray. Background Technology

[0002] The transformer core is one of the key components of a transformer. Silicon steel sheets are the main raw material for manufacturing the core. The core is usually made up of multiple silicon steel sheets stacked together. During the core processing, the silicon steel coils are processed and cut into silicon steel sheets that meet the requirements, and then transported to the production line through silicon steel sheet trays.

[0003] Currently, in recent years, with the application of automatic iron core stacking production lines, iron core manufacturing has gradually shifted from manual stacking to automated operation, significantly improving production efficiency. Silicon steel sheet trays still undertake the task of transferring silicon steel sheets to automatic stacking production lines.

[0004] However, existing silicon steel sheet trays exhibit several limitations when adapted to automated stacking production lines. For instance, existing trays lack positioning capabilities, resulting in inaccurate positioning upon arrival at the stacking equipment and hindering the machine's ability to grip the silicon steel sheets. Alternatively, as the silicon steel sheets on the tray are gradually removed, the stacking height decreases with each layer, especially when the sheets approach the tray surface. Due to the thinness of the sheets, the robotic arm struggles to stably grip the remaining ones.

[0005] Therefore, existing technologies need further development. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide an automatic stacking line material tray to solve the technical problem that silicon steel sheet material trays cannot be adapted to automatic stacking production lines in related technologies.

[0007] To achieve the above technical objectives, the present invention adopts the following technical solution: It provides an automatic stacking line material tray, applicable to automatic stacking lines, comprising: a material tray body, the top surface of which is used to support materials; a positioning groove, recessed on the bottom surface of the material tray body, the positioning groove being adapted to a positioning component located on the automatic stacking line to limit the relative position of the material tray body, the positioning groove including at least two, the at least two positioning grooves being arranged opposite each other; and a connecting hole, through which a lifting component on the automatic stacking line passes to lift materials, the connecting hole extending along the height direction.

[0008] Furthermore, at least two positioning grooves include a first positioning groove and a second positioning groove, which are respectively opened at both ends of the material support body.

[0009] Furthermore, the first positioning groove and the second positioning groove include: a first connecting surface, the end of the first connecting surface away from the second connecting surface being connected to the bottom surface of the material support body, the first connecting surface being provided with a preset angle with the height direction, and the distance between the first connecting surface and the height direction gradually increasing along the direction away from the bottom surface of the material support body; and a second connecting surface interconnected with the first connecting surface, the second connecting surface extending along the horizontal direction, the end of the second connecting surface away from the first connecting surface being connected to the side of the material support body.

[0010] Furthermore, the material support body includes a support platform and a support leg. The support platform carries the material, and the extension direction of the support leg is consistent with the extension direction of the support platform. The support leg is fixedly connected to the bottom of the support platform. One end of the support leg forms at least a partial first positioning groove, and the other end of the support leg forms at least a partial second positioning groove.

[0011] Furthermore, the outriggers include two legs, which are spaced apart at the bottom of the support platform.

[0012] Furthermore, the bearing platform is hollow inside, and reinforcing ribs are provided inside the bearing platform. The extension direction of the reinforcing ribs is perpendicular to the extension direction of the bearing platform. There are multiple reinforcing ribs, which are spaced apart along the extension direction of the bearing platform.

[0013] Furthermore, a series of connecting holes are provided through the support platform, and the series of connecting holes are spaced apart along the extension direction of the support platform.

[0014] Furthermore, the automatic stacking line material holder includes a first lifting hole, and the first lifting hole includes at least two, which are respectively recessed at both ends of the support platform.

[0015] Furthermore, the automatic stacking line material holder includes a second lifting hole, and there are at least two second lifting holes, which are respectively recessed on both sides of the support platform.

[0016] Furthermore, the automatic stacking line tray includes: a mounting hole, which is formed at the bottom of the support leg; a limiting pin, which is movably installed inside the mounting hole along the extension direction of the mounting hole, and a control element for limiting the movement of the limiting pin is provided inside the mounting hole. The extension direction of the control element is perpendicular to the limiting pin, and the control element is movably set. The limiting pin has a limiting state and a reset state connected to the mounting hole. When the limiting pin is in the limiting state, the limiting pin protrudes from the bottom surface of the support leg. When the limiting pin is in the reset state, the limiting pin is retracted inside the mounting hole; and a limiting hole, which is formed at the top surface of the bearing platform. When at least two automatic stacking line trays are stacked on each other, the limiting hole is used to accommodate the limiting pin on the adjacent automatic stacking line tray.

[0017] Beneficial effects: In the automatic stacking line material tray of this embodiment, the material tray body provides a stable bearing platform, the positioning groove ensures the accurate positioning of the material tray on the automatic stacking line, and the connecting hole serves as the channel for the cylinder, realizing the efficient lifting and movement of materials, avoiding the difficulty of gripping due to the thinness of the silicon steel sheet, and solving the technical problem in related technologies that silicon steel sheet material trays cannot be adapted to automatic stacking production lines. Attached Figure Description

[0018] Figure 1 This is a front view of the automatic stacking wire tray used in this embodiment of the utility model; Figure 2 This is a rear view of the automatic stacking wire tray used in this embodiment of the utility model; Figure 3 This is a schematic diagram of the internal structure of the automatic stacking wire tray in the first section direction used in this embodiment of the utility model; Figure 4 This is a side view of the automatic stacking wire tray used in this embodiment of the utility model; Figure 5 yes Figure 4 An enlarged view of point A in the image; Figure 6 This is a schematic diagram of the internal structure of the automatic stacking wire tray in the second section direction used in this embodiment of the utility model; Figure 7 This is a schematic diagram of the internal structure of the automatic stacking wire tray in the third cutting direction used in this embodiment of the utility model.

[0019] The above figures include the following reference numerals: 1. Material support body; 11. Bearing platform; 111. Reinforcing rib; 12. Support leg; 2. Positioning groove; 21. First positioning groove; 22. Second positioning groove; 201. First connecting surface; 202. Second connecting surface; 3. Connecting hole; 4. First lifting hole; 5. Second lifting hole; 61. Mounting hole; 62. Limiting pin; 63. Control component; 64. Limiting hole; 65. First elastic component; 66. Second elastic component; 621. First stop hole; 622. Second stop hole. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] According to an embodiment of this utility model, an automatic stacking wire material tray is provided. Please refer to [link / reference]. Figures 1 to 7 This is applicable to an automatic stacking line and includes: a material tray body 1, the top surface of which is used to support materials; a positioning groove 2, which is recessed on the bottom surface of the material tray body 1 and is adapted to a positioning component on the automatic stacking line to limit the relative position of the material tray body 1; at least two positioning grooves 2 are included, and at least two positioning grooves 2 are arranged opposite each other; and a connecting hole 3, which is provided through the material tray body 1 and allows a lifting component on the automatic stacking line to pass through to lift the materials; the connecting hole 3 extends along the height direction.

[0022] In some embodiments, the shape and size of the positioning groove 2 are customized according to the positioning components on the automatic stacking line to ensure that the two fit tightly together and provide reliable positioning support. Alternatively, the positioning groove 2 can be set on the side of the material tray body 1.

[0023] Thus, the positioning groove 2 is recessed on the bottom surface of the material tray body 1 and is adapted to the positioning component located on the automatic stacking line. At least two positioning grooves 2 are provided and arranged opposite each other to ensure accurate positioning of the material tray on the automatic stacking line. By providing the positioning grooves 2, the material tray can be precisely placed at the designated position on the automatic stacking line, avoiding grasping failures or other operational errors caused by positional deviations. Through the synergistic effect of at least two positioning grooves 2, the material tray can be effectively fixed in both the horizontal and vertical directions, enabling precise positioning of the material tray on the stacking equipment.

[0024] Specifically, the pushing component is a mechanism set in the corresponding connecting hole 3 on the automatic stacking line, including but not limited to a drive mechanism such as a cylinder, hydraulic cylinder, or electric pusher cylinder.

[0025] Specifically, the connecting hole 3 is adapted to the lifting components such as cylinders located on the automatic stacking line. The connecting hole 3 is set in the material carrying area on the material support body 1 to ensure that the lifting component can come into contact with the material after passing through the connecting hole 3.

[0026] Thus, the connecting hole 3 is disposed through the material support body 1 and extends along the height direction. Its main design purpose is to provide a channel for lifting components such as cylinders. The telescopic arm of the lifting component (such as the cylinder) can extend and retract along the height direction, allowing the telescopic arm of the lifting component to push the material through the hole, thereby lifting the material in the height direction to facilitate subsequent gripping operations. For example, in the automatic stacking process, the cylinder can lift the silicon steel sheet, so that the silicon steel sheet is a certain distance away from the surface of the material support, making it easier for the robot to grip the silicon steel sheet close to the surface of the material support, thereby avoiding the problem of difficulty in gripping due to the thinness of the silicon steel sheet.

[0027] In the automatic stacking line material tray of this embodiment, the material tray body 1 provides a stable bearing platform, the positioning groove 2 ensures the accurate positioning of the material tray on the automatic stacking line, and the connecting hole 3 serves as the channel of the cylinder, realizing the efficient lifting and movement of materials, avoiding the difficulty of gripping due to the thinness of silicon steel sheets, and solving the technical problem in related technologies that silicon steel sheet material trays cannot be adapted to automatic stacking production lines.

[0028] In the automatic stacking wire tray of this embodiment, see Figure 3 At least two positioning slots 2 include a first positioning slot 21 and a second positioning slot 22, which are respectively opened at both ends of the material tray body 1. Specifically, the first positioning slot 21 and the second positioning slot 22 are spaced apart along the length of the material tray body 1, and the two positioning slots are respectively opened at both ends of the material tray body 1, so that the material tray can be accurately positioned on the automatic stacking line, ensuring its accurate placement on the production line. The positional layout of the first positioning slot 21 and the second positioning slot 22 takes into account the stability of the material tray during transportation and compatibility with automated equipment, which can effectively prevent the material tray from shifting or tilting during handling, ensuring that the material tray can be accurately placed in the designated position.

[0029] In the automatic stacking wire tray of this embodiment, see Figures 4-5 The first positioning groove 21 and the second positioning groove 22 include: a first connecting surface 201, the end of which is away from the second connecting surface 202 and is connected to the bottom surface of the material tray body 1; a preset angle is set between the first connecting surface 201 and the height direction; and the distance between the first connecting surface 201 and the height direction gradually increases along the direction away from the bottom surface of the material tray body 1; and a second connecting surface 202 connected to the first connecting surface 201, extending horizontally, the end of which is away from the first connecting surface 201 and is connected to the side of the material tray body 1. Specifically, the gradual increase in the distance between the first connecting surface 201 and the height direction not only enhances the structural strength of the positioning groove but also provides better guiding function. When the material tray enters the automatic stacking line, the first connecting surface 201 can guide the positioning component to smoothly enter the positioning groove, ensuring the smooth progress of the positioning process. The second connecting surface 202 extends horizontally, effectively distributing the pressure from the vertical direction and improving the stability of the positioning groove.

[0030] In the automatic stacking wire tray of this embodiment, see Figure 2The material support body 1 includes a support platform 11 and support legs 12. The support platform 11 carries materials, and the extension direction of the support legs 12 is consistent with the extension direction of the support platform 11. The support legs 12 are fixedly connected to the bottom of the support platform 11. One end of the support legs 12 forms at least a partial first positioning groove 21, and the other end of the support legs 12 forms at least a partial second positioning groove 22. The support platform 11 is the core part of the material support body 1, used to carry materials. The design of the support legs 12 not only provides stable support for the support platform 11, but also has a certain shock absorption function. The support platform 11 and the support legs 12 together constitute a complete material support body 1, providing reliable load-bearing function.

[0031] Each support leg 12 has at least a partial first positioning groove 21 at one end and at least a partial second positioning groove 22 at the other end. This design enables precise positioning of the material tray on the automated stacking line, ensuring its accurate placement on the production line.

[0032] In some embodiments, depending on the actual situation, the first positioning groove 21 and the second positioning groove 22 are not only formed on the support leg, but also at least a portion of the first positioning groove 21 and the second positioning groove 22 are formed at both ends of the support platform 11.

[0033] In the automatic stacking wire tray of this embodiment, see Figure 2 The support legs 12 include two legs, which are spaced apart at the bottom of the support platform 11. The spaced-apart support legs at the bottom of the support platform 11 provide stable support for the support platform and ensure the stability of the material tray during transportation and stacking. While ensuring stable support, it greatly reduces the overall weight of the material tray of the automatic stacking line.

[0034] Understandably, the number and distribution of the outriggers 12 are adjusted according to actual needs to provide the best support effect.

[0035] In the automatic stacking wire tray of this embodiment, see Figure 2 The supporting platform 11 has a hollow interior and is equipped with reinforcing ribs 111. The reinforcing ribs 111 extend perpendicularly to the extension direction of the supporting platform 11. Multiple reinforcing ribs 111 are spaced apart along the extension direction of the supporting platform 11. This hollow interior with reinforcing ribs 111, spaced apart perpendicular to the supporting platform 11, reduces the overall weight of the supporting platform 11 while ensuring its structural strength and load-bearing capacity.

[0036] In the automatic stacking wire tray of this embodiment, see Figure 1A through hole 3 is provided on the support platform 11. There are multiple through holes 3, and the multiple through holes 3 are spaced apart along the extension direction of the support platform 11.

[0037] Specifically, the connecting hole 3 is centered in the width direction of the support platform 11, and multiple connecting holes 3 are evenly spaced along the length direction of the support platform 11 to ensure that the pushing component can contact the material.

[0038] Multiple connecting holes 3 provide movement channels for the lifting components such as cylinders, enabling the material to be lifted or moved. These multiple channels help distribute the load, ensuring stable lifting of the material. Large-area materials have a wide weight distribution, making it difficult to achieve uniform lifting with a single cylinder, which can easily lead to uneven localized stress and the risk of material tilting or damage. Multiple connecting holes 3 allow multiple sets of cylinders to act simultaneously on different positions of the material, ensuring stable and uniform lifting.

[0039] In the automatic stacking wire tray of this embodiment, see Figure 1 The automatic stacking material support includes at least two first lifting holes 4, which are recessed at both ends of the support platform 11. Specifically, the at least two first lifting holes 4 are spaced apart along the length direction, facilitating the loading and unloading of materials using lifting tools and improving work efficiency. The positioning of the first lifting holes at both ends of the support platform ensures that the lifting tools can apply force evenly, avoiding tilting or overturning caused by uneven force.

[0040] In some embodiments, a total of four first lifting holes 4 are provided, with two first lifting holes 4 at each end of the bearing platform 11, which can be connected to the four first lifting holes 4 by a lifting device.

[0041] In the automatic stacking wire tray of this embodiment, see Figure 4 The automatic stacking line material support includes a second lifting hole 5, of which there are at least two, and the at least two second lifting holes 5 are respectively recessed on both sides of the bearing platform 11. Specifically, the at least two second lifting holes 5 are spaced apart along the width direction. The second lifting holes 5 enable the lifting equipment to smoothly connect to and transfer the material support, and different lifting holes can be selected as needed.

[0042] In some embodiments, the second lifting hole 5 includes a plurality of second lifting holes 5, which are evenly distributed on both sides of the support platform 11, and the second lifting holes on both sides are arranged opposite to each other. In this way, ropes can be passed through the two oppositely arranged second lifting holes to tie the material and prevent the material from falling during transportation.

[0043] It should be noted that in daily use, material trays are usually stacked in the storage area. When dozens of material trays are stacked together, they are prone to tilting and collapsing.

[0044] In the automatic stacking wire tray of this embodiment, see Figure 7 The automatic stacking line tray includes: a mounting hole 61, which is located at the bottom of the support leg 12; a limiting pin 62, which is movably installed inside the limiting pin 62 along the extension direction of the mounting hole 61; a control element 63 for limiting the movement of the limiting pin 62 is provided inside the mounting hole 61; the extension direction of the control element 63 is perpendicular to the limiting pin 62; the control element 63 is movably disposed; the limiting pin 62 has a limiting state and a reset state connected to the mounting hole 61; when the limiting pin 62 is in the limiting state, the limiting pin 62 protrudes from the bottom surface of the support leg 12; when the limiting pin 62 is in the reset state, the limiting pin 62 is retracted inside the mounting hole 61; and a limiting hole 64, which is located on the top surface of the bearing platform 11; when at least two automatic stacking line trays are stacked on each other, the limiting hole 64 is used to accommodate the limiting pin 62 on the adjacent automatic stacking line tray.

[0045] Specifically, the limiting pin 62 includes two pins, which are spaced apart along the length of the material support body 1. In some embodiments, the limiting hole 64 includes two holes, and the two limiting holes 64 are spaced apart along the length direction of the material support body 1, corresponding to the two limiting pins 62.

[0046] In some embodiments, in order to facilitate the stacking of material trays for automatic stacking lines, four limiting holes 64 are provided. The four limiting holes 64 are arranged in pairs on both sides of the material tray body, so that the limiting holes 64 can be connected to the limiting holes 64 regardless of which side of the material tray body they are on.

[0047] Specifically, the main design purpose of the mounting hole 61 is to provide a movable mounting channel for the limit pin 62, allowing it to extend or retract the support leg 12 when needed. The limit pin 62 is movably mounted inside the mounting hole 61 and has two working states: a limited state and a reset state. When the limit pin 62 is in the limited state, it protrudes from the bottom surface of the support leg 12 to engage with the limit holes 64 on other material trays, achieving a stable connection between the material trays and preventing them from tilting and collapsing. When multiple material trays are stacked together, the limit pin 62 inserts into the limit holes 64, which not only prevents the material trays from sliding or shifting but also enhances the stability of the overall structure. When the limit pin 62 is in the reset state, it is retracted inside the mounting hole 61, avoiding interference with the handling of material trays on the automatic stacking line.

[0048] Specifically, a first elastic element 65 is sleeved on the limiting pin 62. The first elastic element 65 is kept in a compressed state. A boss is provided on the limiting pin 62. The boss can limit the limiting pin on one hand, and on the other hand, one end of the first elastic element 65 abuts against the boss and the other end of the first elastic element 65 abuts against the mounting hole 61.

[0049] Specifically, a first stop hole 621 and a second stop hole 622 are also provided on the limiting pin 62. The first stop hole 621 is located on the side of the second stop hole 622 away from the bearing platform 11, and is used to accommodate the control member 63 in different states. In the limiting state, the control member 63 is located in the second stop hole 622, and in the reset state, the control member 63 is located in the first stop hole 621. The control member 63 is a pin structure that is perpendicular to the limiting pin. A second elastic member 66 is sleeved on the control member 63. The second elastic member 66 is kept in a compressed state. The end of the control member 63 away from the limiting pin extends out of the side of the material support body, which facilitates the control of the control member.

[0050] In addition, the end of the control component 63 near the limit pin is an arc-shaped end face, and the first stop hole 621 and the second stop hole 622 are arc-shaped grooves, which can provide sufficient stopping effect for the limit pin 62, and can also facilitate the limit pin 62 to slide out of the stop hole when it is under force, so as to return to the reset state.

[0051] When multiple automatic stacking material trays are stacked, the operator pulls the control component 63, disengaging it from the first stop hole 621. Under the action of the first elastic element 65, the limiting pin 62 releases its elastic potential energy, causing it to move outward along the mounting hole 61 and into the limiting hole 64. This fixes the relative positions of adjacent material trays, preventing tilting and collapse. After the operator releases the control component 63, it retracts into the second stop hole 622 under the action of the second elastic element 66, at which point the limiting pin 62 is in a limited position. When the automatic stacking material tray is moved to a flat surface, the limiting pin 62 is compressed and retracts into the mounting hole 61. The control component 63 then retracts into the first stop hole 621, at which point the limiting pin 62 is in a reset position.

[0052] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0053] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0054] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0055] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0056] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An automatic lay-up line stock tray, characterized by, Suitable for automated stacking lines, including: Material support body (1), the top surface of which is used to support materials; Positioning groove (2), the positioning groove (2) is recessed on the bottom surface of the material tray body (1), the positioning groove (2) is adapted to the positioning component located on the automatic stacking line to limit the relative position of the material tray body (1), the positioning groove (2) includes at least two, and at least two positioning grooves (2) are arranged opposite to each other; A connecting hole (3) is provided through the material support body (1). The connecting hole (3) allows the lifting component on the automatic stacking line to pass through and lift the material. The connecting hole (3) extends along the height direction.

2. The automatic layon line topper of claim 1, wherein, At least two of the positioning grooves (2) include a first positioning groove (21) and a second positioning groove (22), the first positioning groove (21) and the second positioning groove (22) being respectively opened at both ends of the material support body (1).

3. The automatic layon line topper of claim 2, wherein, The first positioning groove (21) and the second positioning groove (22) include: The first connecting surface (201) is connected to the bottom surface of the material support body (1) at one end away from the second connecting surface (202). The first connecting surface (201) is provided with a preset angle with the height direction. Along the direction away from the bottom surface of the material support body (1), the distance between the first connecting surface (201) and the height direction gradually increases. The second connecting surface (202) is connected to the first connecting surface (201). The second connecting surface (202) extends in the horizontal direction. The end of the second connecting surface (202) away from the first connecting surface (201) is connected to the side of the material support body (1).

4. The automatic lay-on line topper of claim 2, wherein, The material support body (1) includes a support platform (11) and a support leg (12). The support platform (11) carries the material. The extension direction of the support leg (12) is consistent with the extension direction of the support platform (11). The support leg (12) is fixedly connected to the bottom of the support platform (11). At least a portion of the first positioning groove (21) is formed at one end of the support leg (12), and at least a portion of the second positioning groove (22) is formed at the other end of the support leg (12).

5. The automatic lay-on line topper of claim 4, wherein, The support leg (12) includes two legs, which are spaced apart at the bottom of the support platform (11).

6. The automatic lay-on line topper of claim 4, wherein, The bearing platform (11) is hollow inside, and a reinforcing rib (111) is provided inside the bearing platform (11). The extension direction of the reinforcing rib (111) is perpendicular to the extension direction of the bearing platform (11). The reinforcing rib (111) includes a plurality of ribs, and the reinforcing ribs (111) are spaced apart along the extension direction of the bearing platform (11).

7. The automatic lay-on line topper of claim 4, wherein, The connecting hole (3) is disposed through the bearing platform (11). The connecting hole (3) includes multiple holes, and the multiple connecting holes (3) are spaced apart along the extension direction of the bearing platform (11).

8. The automatic lay-on line topper of claim 4, wherein, The automatic stacking material tray includes a first lifting hole (4), and the first lifting hole (4) includes at least two, with the at least two first lifting holes (4) respectively recessed at both ends of the bearing platform (11).

9. The automatic lay-on line topper of claim 4, wherein, The automatic stacking material tray includes a second lifting hole (5), and the second lifting hole (5) includes at least two, with the at least two second lifting holes (5) respectively recessed on both sides of the bearing platform (11).

10. The automatic lay-on line topper of claim 4, wherein, The automatic stacking line tray includes: Mounting hole (61) is provided at the bottom of the support leg (12); A limiting pin (62) is movably installed inside the mounting hole (61) along the extension direction of the mounting hole (61). A control element (63) for limiting the movement of the limiting pin (62) is provided inside the mounting hole (61). The extension direction of the control element (63) is perpendicular to the limiting pin (62). The control element (63) is movably provided. The limiting pin (62) has a limiting state and a reset state connected to the mounting hole (61). When the limiting pin (62) is in the limiting state, the limiting pin (62) protrudes from the bottom surface of the support leg (12). When the limiting pin (62) is in the reset state, the limiting pin (62) is housed inside the mounting hole (61). A limiting hole (64) is provided on the top surface of the bearing platform (11). When at least two of the automatic stacking line trays are stacked together, the limiting hole (64) is used to accommodate the limiting pin (62) on the adjacent automatic stacking line tray.

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