Solid-state cell-free energy storage power supply transfer device

By improving the design of the robotic arm's grabbing claws and separator sleeves, the efficiency and adaptability issues of the robotic arm in transporting solid-state cell-free energy storage power supplies were solved, achieving efficient and safe power supply transport and automated production.

CN223356805UActive Publication Date: 2025-09-19IDRA (HEBEI) INTELLIGENT TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422714418.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-19
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

In the existing technology, when a robotic arm transports solid-state, cell-free energy storage power supplies, there are problems such as low grasping efficiency, the need for additional stacking operations, and the inability to adapt to power supplies of different specifications, resulting in an inefficient and inflexible production process.

Method used

A transfer device including a robotic arm body, a grabbing claw and a separating sleeve is designed. The grabbing claw is provided with an L-shaped grabbing part and a separating sleeve. The grabbing claw can swing to grab the power supply and separate the materials through the separating sleeve. It can adapt to power supplies of different specifications and is easy to integrate with automated equipment.

Benefits of technology

It improves the transfer efficiency, reduces manual operations, ensures the safety of power supply without damage, adapts to power supplies of different specifications, enhances the versatility of equipment and the degree of automation of the production system, and improves economic benefits.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223356805U_ABST
    Figure CN223356805U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of power supply transfer devices, and provides a solid-state cell-free energy storage power supply transfer device which comprises a mechanical arm body. The two grabbing claws are arranged on the mechanical arm body in a swinging mode, a grabbing area is formed between the two grabbing claws, each grabbing claw comprises a plurality of L-shaped grabbing parts, and the L-shaped grabbing parts are arranged at intervals. The separating sleeves are arranged on the L-shaped grabbing parts in a sleeving mode, and the two adjacent separating sleeves on the two grabbing claws are used for dividing materials. By means of the technical scheme, the problems that in the prior art, how to transfer a large number of materials through a mechanical arm and how to guarantee the drying effect of the materials in a drying box are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of power transfer devices, and in particular to a solid-state core-free energy storage power transfer device. Background Art

[0002] In today's energy field, the demand for efficient and safe energy storage solutions is growing. With the advancement of technology, solid-state cellless energy storage power supplies have gradually attracted widespread attention due to their unique advantages. They have many advantages, such as higher safety, longer service life, smaller size and weight, etc. However, during their production, transportation and use, special transfer devices are required to ensure their safety and reliability.

[0003] Usually, a robotic arm or similar device is used to complete the transfer operation because the chip power supplies stored in the box need to be transferred to a drying box for drying before completing production. However, the cost of investing specifically to produce a transfer conveyor line suitable for the production line is too high, and the positions of various parts of the production line may be adjusted at any time, resulting in the transfer conveyor line being unable to adapt. Therefore, the practicality of the robotic arm is relatively prominent.

[0004] However, in the specific production process, the robotic arm will have the following common problems: usually the robotic arm gripper can only complete the grabbing and transferring actions. After the materials are transferred, additional equipment is still required to perform stacking operations to ensure the drying effect of the materials stacked in the drying box, or to place the materials one by one to ensure the spacing between the materials. Obviously, the above steps are not reasonable and the steps are cumbersome. Utility Model Content

[0005] The utility model proposes a solid-state core-free energy storage power supply transfer device, which solves the problem in the related art of how to use a mechanical arm to transfer large quantities of materials and ensure their drying effect in a drying box.

[0006] The technical solution of the utility model is as follows:

[0007] A solid-state coreless energy storage and power transfer device comprising:

[0008] Robotic arm body;

[0009] Two grasping claws, both of which are swingably disposed on the robot arm body, forming a grasping area between the two grasping claws, and the grasping claws include a plurality of L-shaped grasping portions, and the plurality of L-shaped grasping portions are arranged at intervals;

[0010] Also includes:

[0011] A plurality of separation sleeves are provided on the L-shaped gripping portion, and two adjacent separation sleeves on the two gripping claws are used to separate materials.

[0012] As a further technical solution, the separation sleeve is a rubber separation sleeve, the length of which is greater than the length of the L-shaped gripping portion. After the two gripping claws swing, the two adjacent separation sleeves on the two gripping claws abut or cancel the abutment to form a separation state.

[0013] As a further technical solution, the separation sleeve includes:

[0014] A sleeve portion and a partition portion, wherein the partition portion is arranged on the sleeve portion, the sleeve portion is sleeved on the L-shaped gripping portion, and the length of the sleeve portion is greater than the length of the L-shaped gripping portion.

[0015] As a further technical solution, the grabbing claw further includes:

[0016] The frame body is provided with a plurality of L-shaped gripping portions which can be detachably arranged on the frame body.

[0017] As a further technical solution, the grabbing claw is swingably arranged on the main body of the robotic arm through the frame, the frame has a bending portion, the bending portion has a swing point at the corner, and one end of the bending portion has a driving point, further comprising:

[0018] A linear drive member is swingably arranged on the robot arm body, and the linear drive member has a drive end, and the drive end is hingedly connected to the drive point.

[0019] As a further technical solution, it also includes:

[0020] Two height limiting plates, both of which are fixedly arranged on the robot arm body, are located in the grasping area, and are both higher than the L-shaped grasping part, and the height limiting plates are L-shaped.

[0021] As a further technical solution, it also includes:

[0022] A stacking rod is vertically arranged on the frame and located between the height limiting plate and the L-shaped grabbing portion.

[0023] As a further technical solution, there are several stacking rods, which are arranged at intervals. The stacking rods swing with the frame, and the height limiting plate has an avoidance groove. After the stacking rods swing with the frame, the stacking rods pass through the avoidance groove to stack the materials.

[0024] The working principle and beneficial effects of the utility model are as follows:

[0025] The following is a simplified description of the actual working process:

[0026] 1. Efficient Grasping and Transfer: In actual operation, the main robotic arm drives two swinging grippers. Multiple L-shaped gripping sections on the grippers are spaced apart, enabling them to firmly grasp the solid-state, coreless energy storage power supply from various angles and positions. This prevents the power supply from slipping or falling during transfer, significantly improving transfer efficiency and reducing manual operation time and labor intensity. The main robotic arm can quickly and accurately move the power supply between different locations, meeting the requirements of efficient production line flow.

[0027] 2. Accurately separate materials

[0028] The separator sleeves on the gripping claws play a crucial role in separating the power supplies. During transport, the adjacent separator sleeves on the two gripping claws effectively separate the power supplies, preventing collision and friction between them and reducing the risk of surface wear and damage. Maintaining the appearance of solid-state, coreless energy storage power supplies is crucial, as surface damage can affect performance and lifespan. The separator sleeves ensure that each power supply is transported independently and safely.

[0029] 3. Adapt to different specifications of power supply

[0030] Thanks to the spaced L-shaped gripping elements and adjustable, replaceable separator sleeves, the device can accommodate power supplies of varying sizes. In actual production, whether small or large power modules, the gripping claw angle and separator sleeve position can be adjusted to achieve stable gripping and transfer, enhancing the device's versatility and practicality.

[0031] 4. Easy to automate integration

[0032] In actual production, the transfer device is easily integrated with other automated equipment. The robotic arm can be programmed to work collaboratively with other production line equipment, such as conveyor lines and testing equipment, improving the automation and efficiency of the entire production system. This reduces manual intervention, improves production stability and consistency, and brings higher economic benefits to the company. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0034] Figure 1 This is a structural diagram of a solid-state coreless energy storage and power transfer device in the present utility model;

[0035] Figure 2 This is a schematic diagram of the cooperation of two grabbing claws in the present utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the grabbing claw in the utility model;

[0037] Figure 4 For this utility model Figure 3 Enlarged view of part A in the middle;

[0038] Figure 5 For this utility model Figure 3 Enlarged view of middle part B;

[0039] Figure 6 This is a schematic diagram of the height limit plate structure in the utility model;

[0040] Figure 7 For this utility model Figure 6 Enlarged view of part C in the middle.

[0041] In the figure: 1. Robot arm body, 2. Grasping claw, 201. Grasping area, 202. L-shaped grasping part, 203. Frame, 204. Bending part, 205. Swing point, 206. Driving point, 3. Partition sleeve, 301. Sleeve part, 302. Partition part, 4. Linear drive part, 401. Driving end, 5. Height limit plate, 501. Avoidance groove, 6. Stacking rod. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0043] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0044] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0045] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0046] Reference Figures 1 to 7 , which is the first embodiment of the present utility model, proposes a solid-state core-free energy storage power supply transfer device, including: a robotic arm body 1; two grabbing claws 2, both of which are swingably set on the robotic arm body 1, and a grabbing area 201 is formed between the two grabbing claws 2, and the grabbing claws 2 include a plurality of L-shaped grabbing parts 202, and the plurality of L-shaped grabbing parts 202 are arranged at intervals; it also includes: a plurality of separation sleeves 3, the separation sleeves 3 are set on the L-shaped grabbing part 202, and the two adjacent separation sleeves 3 on the two grabbing claws 2 are used to separate materials.

[0047] In this embodiment, to address common issues encountered in the actual use of a robotic arm, efficient grasping and transport are achieved by improving the two swinging gripping claws 2. Specifically, the transport device utilizes the robotic arm body 1 and two swinging gripping claws 2 to grasp and transport solid-state, coreless energy storage power supplies. The gripping claws 2 have several L-shaped gripping portions 202 arranged at intervals, which can securely grasp the power supply from different angles and positions, ensuring that the power supply does not slip or fall during transport. This design greatly improves transport efficiency and reduces the time and labor intensity of manual operation. The robotic arm body 1 can quickly and accurately move the power supply from one location to another, meeting the efficient flow requirements of the production line.

[0048] Furthermore, the separator sleeves 3 on the gripping claws 2 play an important role in separation. Two adjacent separator sleeves 3 on two gripping claws 2 can effectively separate materials, preventing different power supplies from colliding and rubbing against each other during transportation, thereby reducing the risk of wear and damage to the power supply surface. Maintaining the integrity of the appearance of solid-state, coreless energy storage power supplies is crucial, as any surface damage can affect their performance and service life. The precise separation of the separator sleeves 3 ensures that each power supply can be transported independently and safely.

[0049] Because the L-shaped gripping portions 202 on the gripping claws 2 are arranged at intervals, and the separator sleeves 3 can be adjusted and replaced according to actual needs, the transfer device can accommodate solid-state, coreless energy storage power supplies of varying specifications. Whether small power modules or large power components, stable gripping and transfer can be achieved by adjusting the angle of the gripping claws 2 and the position of the separator sleeves 3. This flexibility enables the device to function effectively in various production scenarios, enhancing its versatility and practicality.

[0050] This solid-state, cell-free energy storage and power transfer device is easily integrated with other automated equipment, enabling a fully automated production process. The robotic arm 1 can be programmed to work seamlessly with other equipment on the production line. For example, it can be linked with conveyor lines and testing equipment to improve the automation and efficiency of the entire production system. This automated integration not only reduces manual intervention but also improves production stability and consistency, resulting in higher economic benefits for the enterprise.

[0051] Furthermore, the separation sleeve 3 is a rubber separation sleeve, and the length of the separation sleeve 3 is greater than the length of the L-shaped gripping portion 202. After the two gripping claws 2 swing, the two adjacent separation sleeves 3 on the two gripping claws 2 abut or cancel the abutment to form a separation state.

[0052] In this embodiment, in the solid-state cell-free energy storage power supply transport device, the separation sleeve 3 is a rubber separation sleeve 3, and its length is greater than the length of the L-shaped gripping portion 202. After the two gripping claws 2 swing, the adjacent separation sleeves 3 can abut or cancel the abutment to form a separation state.

[0053] The actual working process is as follows: The rubber separator sleeve 3 is elastic. During the actual transportation process, it acts as a buffer, reducing the impact force on the power supply during transportation and reducing the risk of damage. Furthermore, when the two grabbing claws 2 swing to grab the power supply, the adjacent rubber separator sleeves 3 abut to form a separation state, which can more tightly separate the materials and ensure that different power supplies do not collide or rub against each other, effectively protecting the appearance integrity of the power supply and preventing surface damage that may affect its performance and service life. Furthermore, the swing angle of the grabbing claws 2 can be adjusted according to the different power supply specifications, so that the separator sleeve 3 can better adapt to transportation needs, improving the versatility and practicality of the device.

[0054] Furthermore, the separation sleeve 3 includes: a sleeve portion 301 and a separation portion 302 , the separation portion 302 is provided on the sleeve portion 301 , the sleeve portion 301 is sleeved on the L-shaped gripping portion 202 , and the length of the sleeve portion 301 is greater than that of the L-shaped gripping portion 202 .

[0055] In this embodiment, in the solid-state coreless energy storage and power supply transport device, the separation sleeve 3 includes a sleeve portion 301 and a separation portion 302. The sleeve portion 301 is sleeved on the L-shaped gripping portion 202 and has a length greater than that of the L-shaped gripping portion 202.

[0056] During actual operation, when the robot arm body 1 drives the grabbing claw 2 to transfer the power supply, the sleeve portion 301 is tightly mounted on the L-shaped grabbing portion 202 to ensure that the separation sleeve 3 will not be easily displaced during the transfer process. The separation portion 302 plays a key role in separation. The sleeve portion 301 and the separation portion 302 made of rubber are elastic and can provide a buffer when grabbing and transferring the power supply, reducing the impact force on the power supply and reducing the risk of damage. When the two grabbing claws 2 swing to grab the power supply, the adjacent separation portions 302 cooperate with each other to form an effective separation state, preventing different power supplies from colliding and rubbing against each other, and protecting the integrity of the power supply appearance. At the same time, the angle of the grabbing claw 2 can be adjusted according to the specifications of the power supply, so that the separation sleeve 3 can better adapt to different transfer requirements, thereby improving the versatility and practicality of the device.

[0057] Furthermore, the grabbing claw 2 further includes a frame 203 , and the plurality of L-shaped grabbing portions 202 are detachably mounted on the frame 203 .

[0058] In this embodiment, the L-shaped gripping portion 202 on the frame 203 is detachable, which is convenient for maintenance and replacement, improves the flexibility and adaptability of the device, and is conducive to meeting different transportation needs.

[0059] Furthermore, the grabbing claw 2 is swingably set on the robot arm body 1 through the frame 203, the frame 203 has a bending portion 204, the bending portion 204 has a swing point 205 at the corner, and the bending portion 204 has a driving point 206 at one end. It also includes: a linear drive component 4, the linear drive component 4 is swingably set on the robot arm body 1, the linear drive component 4 has a driving end 401, and the driving end 401 is hingedly connected to the driving point 206.

[0060] In this embodiment, the linear drive element 4 is connected to the frame 203 of the gripping claw 2, enabling precise control of the gripping claw 2's swing angle and speed. This allows for flexible adjustments based on actual needs when transporting solid-state, coreless energy storage power supplies of varying specifications, enhancing the device's adaptability and versatility.

[0061] Through the rapid response and precise movement of the linear drive member 4, the rapid swinging and grasping operation of the grasping claw 2 can be achieved, which reduces the transportation time and improves the production efficiency.

[0062] The design of the swing point 205 and the driving point 206 of the bending portion 204 makes the swing of the grab claw 2 more stable and reliable. The hinged connection between the linear drive member 4 and the driving point 206 can withstand large forces, ensuring that the grab claw 2 will not loosen or malfunction during transportation.

[0063] In actual work, when it is necessary to transport a solid-state coreless energy storage power supply, the linear drive 4 receives a control signal and starts to move. The driving end 401 pushes or pulls the driving point 206 of the frame 203, causing the bending portion 204 to swing with the swing point 205 as the center. The frame 203 drives several L-shaped grasping parts 202 to swing together, adjusting the position and angle of the grasping claw 2. When the grasping claw 2 is aligned with the power supply, the linear drive 4 continues to move, closing the grasping claw 2, and the L-shaped grasping part 202 firmly grasps the power supply. Then, the robot arm body 1 transfers the grasped power supply to the designated location. Throughout the process, the precise control and stable drive of the linear drive 4 ensure the efficiency and reliability of the transfer operation.

[0064] Furthermore, it also includes: two height limiting plates 5, both of which are fixedly arranged on the robot arm body 1, and the two height limiting plates 5 are located in the grasping area 201, and are both higher than the L-shaped grasping part 202, and the height limiting plates 5 are L-shaped.

[0065] In this embodiment, the two L-shaped height limiting plates 5 provided in the solid-state, coreless energy storage power supply transport device have the following beneficial effects: the height limiting plates 5 are fixed to the robot arm body 1 and located within the gripping area 201, higher than the L-shaped gripping portion 202, thereby preventing the gripped power supply from accidentally moving upwards and falling during transport. The L-shaped design is compatible with the shape of the gripping area 201, providing a better restraining effect. This ensures the stability and safety of the transport process, reduces the risk of power supply damage, improves transport efficiency, and provides reliable protection for the safe transport of the solid-state, coreless energy storage power supply.

[0066] Furthermore, it also includes: a stacking rod 6, which is vertically arranged on the frame 203 and located between the height limiting plate 5 and the L-shaped grabbing portion 202.

[0067] In this embodiment, the addition of stacking rods 6 to the solid-state coreless energy storage power supply transfer device has many beneficial effects. During the actual transfer process, the stacking rods 6 are vertically arranged on the frame 203, between the height limit plate 5 and the L-shaped grasping portion 202. On the one hand, the stacking rods 6 can play a role in positioning and separating when grabbing and transferring multiple power supplies for stacking operations, ensuring that the power supplies are neatly arranged during the stacking process and preventing chaotic stacking. On the other hand, when the grabbing claw 2 performs the grabbing action, the stacking rods 6 can assist the height limit plate 5 to further limit the moving range of the power supply, thereby improving the stability and accuracy of the grabbing. At the same time, during the transfer process, the stacking rods 6 can also enhance the strength of the entire grabbing claw 2 structure, reduce the risk of deformation due to external forces, ensure the reliability and durability of the transfer device, and improve the efficiency and quality of the solid-state coreless energy storage power supply transfer and stacking.

[0068] Furthermore, there are several stacking rods 6, which are arranged at intervals. The stacking rods 6 swing along with the frame 203. The height limiting plate 5 has an avoidance groove 501. After the stacking rods 6 swing along with the frame 203, the stacking rods 6 pass through the avoidance groove 501 for stacking materials.

[0069] In this embodiment, when a solid-state coreless energy storage power supply needs to be transported, the robot arm body 1 drives the grabbing claw 2 to move to the location of the power supply. The linear drive 4 pushes the frame 203, causing the grabbing claw 2 to swing, and the L-shaped grabbing portion 202 is ready to grab the power supply. At this time, the stacking rod 6 located between the height limit plate 5 and the L-shaped grabbing portion 202 swings with the frame 203. After the grabbing claw 2 closes and firmly grasps the power supply, the robot arm body 1 transports it to the stacking position. During the stacking process, the frame 203 swings again, and the stacking rod 6 swings along and passes through the avoidance groove 501 on the height limit plate 5, accurately placing the power supply in the designated position for stacking.

[0070] 1. Improve the stacking accuracy. Several stacking rods 6 arranged at intervals can play a precise positioning role during stacking, ensuring that the power supplies are stacked neatly, avoiding stacking chaos and improving the stacking quality.

[0071] Second, enhanced flexibility: The stacking rod 6 swings along with the frame 203 and can pass through the avoidance slot 501, making the stacking operation more flexible and adaptable to different stacking requirements and space limitations.

[0072] 3. Improve work efficiency. The fast and accurate palletizing process reduces manual intervention, improves the transportation and palletizing efficiency of solid-state coreless energy storage power supplies, and speeds up production.

[0073] 4. Ensure safety: The cooperation of the height limit plate 5 and the stacking rod 6 can effectively prevent the power supply from accidentally falling or shifting during the transportation and stacking process, thereby improving the safety of operation.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A solid-state coreless energy storage power supply transport device, characterized in that: include: Robotic arm body (1); Two grasping claws (2), both grasping claws (2) are swingably arranged on the mechanical arm body (1), a grasping area (201) is formed between the two grasping claws (2), and the grasping claws (2) include a plurality of L-shaped grasping portions (202), and the plurality of L-shaped grasping portions (202) are arranged at intervals; Also includes: A plurality of separation sleeves (3), wherein the separation sleeves (3) are sleeved on the L-shaped gripping portion (202), and two adjacent separation sleeves (3) on the two gripping claws (2) are used to separate materials.

2. A solid-state coreless energy storage power supply transport device according to claim 1, characterized in that: The separation sleeve (3) is a rubber separation sleeve, and the length of the separation sleeve (3) is greater than the length of the L-shaped grasping portion (202). After the two grasping claws (2) swing, the two adjacent separation sleeves (3) on the two grasping claws (2) abut or cancel the abutment, so as to form a separation state.

3. A solid-state coreless energy storage power supply transport device according to claim 2, characterized in that: The separation sleeve (3) comprises: A sleeve portion (301) and a partition portion (302), wherein the partition portion (302) is arranged on the sleeve portion (301), the sleeve portion (301) is sleeved on the L-shaped gripping portion (202), and the length of the sleeve portion (301) is greater than the length of the L-shaped gripping portion (202).

4. A solid-state coreless energy storage and power supply transport device according to claim 1, characterized in that: The grabbing claw (2) further comprises: The frame (203) is provided with a plurality of L-shaped gripping portions (202) which are detachably mounted on the frame (203).

5. A solid-state coreless energy storage and power supply transport device according to claim 4, characterized in that: The grabbing claw (2) is swingably arranged on the robot arm body (1) via the frame (203), the frame (203) having a bending portion (204), a swing point (205) at a corner of the bending portion (204), and a driving point (206) at one end of the bending portion (204), and further comprising: A linear drive member (4) is swingably arranged on the mechanical arm body (1), and the linear drive member (4) has a drive end (401), and the drive end (401) is hingedly connected to the drive point (206).

6. A solid-state coreless energy storage and power supply transport device according to claim 4, characterized in that: Also includes: Two height limiting plates (5), both of which are fixedly arranged on the robot arm body (1), are located in the gripping area (201), and are both higher than the L-shaped gripping portion (202), and are L-shaped.

7. A solid-state coreless energy storage and power supply transport device according to claim 6, characterized in that: Also includes: A stacking rod (6) is vertically arranged on the frame (203) and located between the height-limiting plate (5) and the L-shaped grabbing portion (202).

8. The solid-state coreless energy storage and power supply transport device according to claim 7, characterized in that: There are a plurality of stacking rods (6), which are arranged at intervals. The stacking rods (6) swing along with the frame (203). The height-limiting plate (5) has an avoidance groove (501). After the stacking rods (6) swing along with the frame (203), the stacking rods (6) pass through the avoidance groove (501) to stack the materials.