Formation restraint device

Abstract

The utility model belongs to the technical field of battery formation devices, and particularly relates to a formation restraining device which comprises a restraining tray and a PLC, the restraining tray comprises a first supporting piece, a restraining assembly and a driving assembly, the restraining assembly comprises at least one layer plate, and the first supporting piece and the driving assembly are arranged in the length direction of the restraining tray. The first supporting piece is arranged on one side of the layer plates, a clamping cavity is formed between every two adjacent layer plates and / or between the layer plates and the first supporting piece, an output shaft of the driving assembly is connected with the other sides of the layer plates, and a detection part is arranged on the driving assembly. The detection part is used for detecting the pressure borne by the battery in the clamping cavity, and the PLC is electrically connected with the driving assembly and the detection part; the pressure on the battery is ensured to be constant, and the battery expansion deformation caused by gas generated in the formation process of the battery is effectively prevented, so that the performance and the service life of the battery are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery formation devices, and in particular relates to a formation restraint device. Background Art

[0002] As a new type of secondary battery, lithium-ion battery has the advantages of high energy density and power density, high operating voltage, light weight, small size, long cycle life, good safety, and green environmental protection. It has broad application prospects in portable appliances, power tools, large-scale energy storage, electric transportation power supply, etc.

[0003] At present, in order to prevent the gas generated during the formation process from causing the battery shell to swell and deform, a restraint tray is generally used to perform pressure restraint before the battery is formed. However, the existing restraint tray cannot perform real-time constant pressure adjustment according to the real-time pressure of the battery shell during the battery formation process, resulting in the battery losing pressure restraint during the formation and gas production process, causing the shell to swell and deform, which not only affects the appearance of the battery, but also may affect the performance and service life of the battery. Utility Model Content

[0004] The utility model aims to provide a formation restraint device in view of the deficiencies of the prior art, and solves the technical problem that the existing restraint tray in the prior art cannot perform real-time constant pressure adjustment according to the real-time pressure of the battery shell during the battery formation process.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A formation restraint device comprises a restraint tray and a PLC controller, wherein the restraint tray comprises a first support member, a restraint assembly and a drive assembly, wherein the restraint assembly comprises at least one layer plate, wherein the first support member is arranged on one side of the layer plate along the length direction of the restraint tray, and a clamping cavity is formed between two adjacent layer plates and / or between the layer plate and the first support member, wherein the output shaft of the drive assembly is connected to the other side of the layer plate, and a detection unit is arranged on the drive assembly, wherein the detection unit is used to detect the pressure exerted on the battery in the clamping cavity, and the PLC controller is electrically connected to the drive assembly and the detection unit.

[0007] Preferably, the constraint tray also includes a second support member, which is arranged on the other side of the layer plate, and the second support member is provided with a first mounting hole. The driving assembly includes a first driving member, a first screw rod, a first bearing and a push plate. The first driving member and the push plate are respectively arranged on both sides of the second support member, and the push plate is located between the second support member and the layer plate. Along the length direction of the constraint tray, the first driving member can approach or move away from the second support member. The first bearing is arranged in the first mounting hole, one end of the first screw rod is connected to the first driving member, and the other end of the first screw rod is connected to the push plate through the first bearing. The first screw rod is threadedly connected to the first bearing, the first driving member is electrically connected to the PLC controller, and the detection unit is arranged on the output shaft of the first driving member or the push plate.

[0008] Preferably, a clamping jaw is provided on the output shaft of the first driving member, a recessed portion is provided on the clamping jaw, a convex portion corresponding to the recessed portion is provided at one end of the first screw rod, and the convex portion is arranged in the recessed portion.

[0009] Preferably, a first guide assembly is arranged between the second support member and the push plate, and the first guide assembly includes a first guide column, a first limit member and a second limit member, one end of the first guide column is connected to the push plate, the other end of the first guide column passes through the second support member and is connected to the first limit member, and the first guide column and the second support member are slidably connected, and the second limit member is sleeved on the first guide column and located between the two support members and the push plate.

[0010] Preferably, it also includes a transmission component arranged at the bottom of the first driving member, the transmission component includes a second driving member, a guide rail, a sliding block and a second screw rod, the second screw rod is rotatably arranged on the guide rail, the second driving member is arranged on one side of the guide rail and is connected to the second screw rod, along the length direction of the constraint tray, the sliding block is slidably arranged on the guide rail and is threadedly connected to the second screw rod, the first driving member is arranged on the sliding block, and the second driving member is electrically connected to the PLC controller.

[0011] Preferably, each of the layer plates is provided with a support block, and the support block is located in the clamping cavity.

[0012] Preferably, both ends of each layer plate are connected with connecting blocks, each connecting block is provided with a card slot and a card block, and the width of the card block is smaller than the width of the card slot. Along the length direction of the constraint tray, two adjacent connecting blocks are snap-fitted with each other through the card slot and the card block.

[0013] Preferably, each layer plate and its corresponding connecting block are matched in a concave-convex manner.

[0014] Preferably, the constraint assembly also includes two second guide assemblies, which are respectively arranged at both ends of the layer plate, and each of the second guide assemblies includes at least one second guide column, one end of the second guide column is connected to the first support member, and the other end of the second guide column passes through the connecting block and the push plate in turn to be connected to the second support member, and the connecting block and the push plate are slidably connected to the second support member.

[0015] Preferably, at least two of the restraining components are provided, and at least two of the restraining components are spaced apart along the width direction of the restraining tray.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] The formation restraint device of the utility model is used in conjunction with a restraint tray and a PLC controller. The restraint tray includes a first support, a restraint assembly and a drive assembly. The restraint assembly includes at least one layer plate. A clamping cavity is formed between two adjacent layers and / or between the first support and the layer plate. The output shaft of the drive assembly is connected to the layer plate. During the battery formation process, the battery is placed in the clamping cavity. The output shaft of the drive assembly can control the distance between the two adjacent layers or the distance between the first support and the layer plate, so as to clamp or release the battery in the clamping cavity. A detection unit is provided on the drive assembly. The detection unit is used to detect the pressure on the battery in the clamping cavity. Due to the PLC controller and the drive assembly, the detection unit can detect the pressure on the battery in the clamping cavity. The driving component and the detection part are electrically connected. During the battery formation process, the detection part detects the pressure of the battery in the clamping cavity in real time, and transmits the detected real-time pressure value to the PLC controller. The PLC controller performs PID operation on the received real-time pressure value and the preset target pressure value to calculate the current output control amount, and then controls the driving component to adjust the clamping cavity according to the current output control amount, so that the clamping cavity clamps or releases the battery, thereby changing the pressure on the battery, so that the pressure on the battery is maintained within a certain pressure range, thereby ensuring that the pressure on the battery is constant, effectively preventing the gas generated by the battery during the formation process from causing the battery to swell and deform, thereby ensuring the performance and service life of the battery.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of the formation restraint device of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the restraining tray of the utility model.

[0022] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0023] Figure 4 It is a structural schematic diagram of the drive assembly of the utility model.

[0024] Figure 5 It is a structural schematic diagram of the clamping cavity of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the first guide assembly of the utility model.

[0026] Figure 7 It is a structural schematic diagram of the transmission component of the utility model.

[0027] Figure 8 It is a structural schematic diagram of the second guide assembly of the utility model.

[0028] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at point B in the middle.

[0029] Fig.10 It is a schematic diagram of the system structure of the formation restraint device of the utility model.

[0030] The reference numerals are described as follows:

[0031] 100. Formation of restraint device;

[0032] 10. Constraint tray; 11. First support member; 12. Constraint assembly; 121. Layer; 1211. Support block; 122. Connecting block; 1221. Card slot; 1222. Card block; 123. Second guide assembly; 1231. Second guide column; 13. Drive assembly; 131. First drive member; 132. First screw rod; 1321. Protrusion; 133. First bearing; 134. Push plate; 1341. Second mounting hole; 135. Clamping claw; 1351. Concave portion; 136. Second bearing; 14. Clamping cavity; 16. Second support member; 161. First mounting hole; 17. First guide assembly; 171. First guide column; 172. First stop member; 173. Second stop member;

[0033] 20. PLC controller;

[0034] 30. Transmission assembly; 31. Second driving member; 32. Guide rail; 33. Sliding block; 34. Second screw rod;

[0035] 40. Testing department;

[0036] 200. Battery;

[0037] a. Constrain the length direction of the pallet; b. Constrain the width direction of the pallet; c. The width of the slot; d. The width of the card block. DETAILED DESCRIPTION

[0038] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0039] Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0040] In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0041] The following will be combined with the attached Figures 1 to 10 The technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] See also Figures 1 to 10 The formation restraint device 100 of the embodiment of the utility model includes a restraint tray 10 and a PLC controller 20. The restraint tray 10 includes a first support member 11, a restraint assembly 12 and a drive assembly 13. The restraint assembly 12 includes at least one layer plate 121. Along the length direction a of the restraint tray 10, the first support member 11 is arranged on one side of the layer plate 121. A clamping cavity 14 is formed between two adjacent layer plates 121 and / or between the layer plate 121 and the first support member 11. The output shaft of the drive assembly 13 is connected to the other side of the layer plate 121. A detection unit 40 is arranged on the drive assembly 13. The detection unit 40 is used to detect the pressure on the battery 200 in the clamping cavity 14. The PLC controller 20 is electrically connected to the drive assembly 13 and the detection unit 40.

[0043] Compared with the prior art, the formation restraint device 100 of the utility model embodiment, through the cooperation of the restraint tray 10 and the PLC controller 20, the restraint tray 10 includes a first support member 11, a restraint assembly 12 and a drive assembly 13, the restraint assembly 12 includes at least one layer plate 121, a clamping cavity 14 is formed between two adjacent layers 121 and / or between the first support member 11 and the layer plate 121, the output shaft of the drive assembly 13 is connected to the layer plate 121, during the formation process of the battery 200, the battery 200 is placed in the clamping cavity 14, the output shaft of the drive member can control the distance between the two adjacent layers 121 or control the distance between the first support member 11 and the layer plate 121, so that the clamping cavity 14 clamps or releases the battery 200, and a detection unit 40 is provided on the drive assembly 13, and the detection unit 40 is used to detect whether the battery 200 in the clamping cavity 14 is restrained. The pressure received, since the PLC controller 20 is electrically connected to the drive component 13 and the detection unit 40, during the formation process of the battery 200, the detection unit 40 detects the pressure of the battery 200 in the clamping cavity 14 in real time, and transmits the detected real-time pressure value to the PLC controller 20. The PLC controller 20 performs PID operation on the received real-time pressure value and the preset target pressure value to calculate the current output control amount, and then controls the drive component 13 to adjust the clamping cavity 14 according to the current output control amount, so that the clamping cavity 14 clamps or releases the battery 200, thereby changing the pressure received by the battery 200, so that the pressure received by the battery 200 is maintained within a certain pressure range, thereby ensuring that the pressure received by the battery 200 is constant, and effectively preventing the gas generated by the battery 200 during the formation process from causing the battery 200 to swell and deform, thereby ensuring the performance and service life of the battery 200.

[0044] See also Figure 1~2 , Figure 4In some embodiments, the constraint tray 10 further includes a second support member 16, the second support member 16 is arranged on the other side of the layer plate 121, the second support member 16 is provided with a first mounting hole 161, the driving assembly 13 includes a first driving member 131, a first screw rod 132, a first bearing 133 and a push plate 134, the first driving member 131 and the push plate 134 are respectively arranged on both sides of the second support member 16, and the push plate 134 is located between the second support member 16 and the layer plate 121, along the length direction of the constraint tray 10 a. The first driving member 131 can be close to or away from the second supporting member 16. The first bearing 133 is arranged in the first mounting hole 161. One end of the first screw rod 132 is connected to the first driving member 131. The other end of the first screw rod 132 passes through the first bearing 133 and is connected to the push plate 134. The first screw rod 132 is threadedly connected to the first bearing 133. The first driving member 131 is electrically connected to the PLC controller 20. The detecting unit 40 is arranged on the output shaft of the first driving member 131 or the push plate 134.

[0045] Through the coordinated use of the second support plate, the first driving member 131, the first screw rod 132, the first bearing 133 and the push plate 134, the first bearing 133 is arranged on the first mounting hole 161 of the second support plate, and the first screw rod 132 is passed through the first bearing 133, so as to effectively realize the supporting effect of the second support plate on the first bearing 133 and the first screw rod 132, and the output shaft of the push plate 134 and the first driving member 131 is connected through the first screw rod 132. During the formation process of the battery 200, the output shaft of the first driving member 131 drives the first screw rod 132 to rotate. Since the first screw rod 132 is threadedly connected to the first bearing 133, the first screw rod 132 can drive the push plate 134 to approach or move away from the layer plate 121, thereby realizing that the clamping cavity 14 clamps or releases the battery 200. In addition, along the length direction a of the constrained tray 10 , the first driving member 131 can approach or move away from the second supporting member 16 , so that the first driving member 131 can move with the first screw rod 132 , effectively preventing the first driving member 131 from restricting the movement of the first screw rod 132 .

[0046] Specifically, when the detection part 40 is set on the push plate 134, the detection part 40 can directly detect the pressure exerted on the battery 200 in the clamping cavity 14; when the detection part 40 is set on the output shaft of the first driving member 131, the detection part 40 needs to indirectly detect the pressure exerted on the battery 200 in the clamping cavity 14 through torque.

[0047] See also Figure 4Further, the push plate 134 is provided with a second mounting hole 1341 corresponding to the first mounting hole 161, a second bearing 136 is provided in the second mounting hole 1341, the other end of the first screw rod 132 is connected to the second bearing 136, and the second screw rod 134 is rotatably connected to the second bearing 136. The second bearing 136 is provided to effectively improve the connection effect between the first screw rod 132 and the push plate 134.

[0048] See also Figure 1 , Figure 4 , Figure 7 In some embodiments, a clamping jaw 135 is provided on the output shaft of the first driving member 131, and a recessed portion 1351 is provided on the clamping jaw 135. A protrusion 1321 corresponding to the recessed portion 1351 is provided at one end of the first screw rod 132, and the protrusion 1321 is arranged in the recessed portion 1351. By providing the clamping jaw 135, the clamping jaw 135 is arranged on the output shaft of the first driving member 131, and the clamping jaw 135 is matched with the protrusion 1321 of the first screw rod 132 through the recessed portion 1351, so as to effectively improve the connection effect between the output shaft of the first driving member 131 and the first screw rod 132, and prevent the first screw rod 132 from falling off the output shaft of the first driving member 131 during use.

[0049] See also Figure 2 , Figure 6 In some embodiments, a first guide assembly 17 is arranged between the second support member 16 and the push plate 134, and the first guide assembly 17 includes a first guide column 171, a first limit member 172 and a second limit member 173, one end of the first guide column 171 is connected to the push plate 134, the other end of the first guide column 171 passes through the second support member 16 and is connected to the first limit member 172, and the first guide column 171 and the second support member 16 are slidably connected, and the second limit member 173 is sleeved on the first guide column 171 and is located between the two support members and the push plate 134. Through the coordinated use of the first guide column 171, the first limit member 172 and the second limit member 173, the first guide column 171 is penetrated on the second support member 16 and is slidably connected to the second support member 16. During the formation process of the battery 200, the push plate 134 will approach or move away from the layer plate 121 driven by the first screw rod 132. Since one end of the first guide column 171 is connected to the push plate 134, the first guide column 171 has a guiding effect on the movement of the push plate 134 to prevent the push plate 134 from being displaced or rotated during the movement.

[0050] See also Figure 1 , Figure 7In some embodiments, the formation constraint device 100 further includes a transmission assembly 30 disposed at the bottom of the first driving member 131. Through the arrangement of the transmission assembly 30, the first driving member 131 is disposed on the transmission assembly 30, and the transmission assembly 30 can drive the first driving member 131 to approach or move away from the second supporting member 16 along the length direction a of the constraint tray 10, thereby achieving the following effect of the first driving member 131 on the first screw rod 132.

[0051] Furthermore, the transmission assembly 30 includes a second driving member 31, a guide rail 32, a sliding block 33 and a second screw rod 34, the second screw rod 34 is rotatably arranged on the guide rail 32, the second driving member 31 is arranged on one side of the guide rail 32 and is connected to the second screw rod 34, along the length direction a of the constraint tray 10, the sliding block 33 is slidably arranged on the guide rail 32 and is threadedly connected to the second screw rod 34, the first driving member 131 is arranged on the sliding block 33, and the second driving member 31 is electrically connected to the PLC controller 20. Through the coordinated use of the second driving member 31, the guide rail 32, the sliding block 33 and the second screw rod 34, the second screw rod 34 is rotatably set on the guide rail 32, the sliding block 33 is slidably set on the guide rail 32 and is threadedly connected with the second screw rod 34. During the formation process of the battery 200, since the output shaft of the second driving member 31 is connected to the second screw rod 34, the first driving member 131 is set on the sliding block 33, and the second driving member 31 drives the second screw rod 34 to rotate, thereby driving the first driving member 131 on the sliding block 33 to slide on the guide rail 32, effectively realizing the transmission effect of the transmission component 30 on the first driving member 131.

[0052] See also Figure 5 In some embodiments, each of the layer plates 121 is provided with a support block 1211, and the support block 1211 is located in the clamping cavity 14. By providing the support block 1211, when the battery 200 is placed in the clamping cavity 14, the support block 1211 is used to support the battery 200, effectively preventing the battery 200 from falling out of the clamping cavity 14.

[0053] See also Figures 1 to 3 , Figure 5 , Figures 8 and 9In some embodiments, both ends of each layer plate 121 are connected with a connection block 122, each of the connection blocks 122 is provided with a slot 1221 and a block 1222, and the width d of the block 1222 is smaller than the width c of the slot 1221, and along the length direction a of the constraint tray 10, two adjacent connection blocks 122 are engaged with each other through the slot 1221 and the block 1222. By setting the connection block 122, each of the connection blocks 122 is provided with a slot 1221 and a block 1222, and two adjacent connection blocks 122 are engaged with each other through the slot 1221 and the block 1222, which effectively assists the layer plate 121 to loosen or clamp the battery 200, thereby improving the connection effect between the two adjacent layer plates 121. In addition, since the width d of the block 1222 is smaller than the width c of the slot 1221, it effectively provides an adjustment space for the pressure adjustment of the constraint tray 10.

[0054] In some embodiments, each layer plate 121 and its corresponding connection block 122 are matched with each other in a concave-convex manner, so as to effectively improve the connection effect between the layer plate 121 and the connection block 122 .

[0055] In some embodiments, the constraint assembly 12 further includes two second guide assemblies 123, and the two second guide assemblies 123 are respectively arranged at both ends of the layer plate 121. Through the arrangement of the second guide assemblies 123, the second guide assemblies 123 are used to guide the movement of the push plate 134 and the layer plate 121 to prevent the push plate 134 or the layer plate 121 from being displaced or rotated during the movement.

[0056] Further, each of the second guide components 123 includes at least one second guide column 1231, one end of the second guide column 1231 is connected to the first support member 11, and the other end of the second guide column 1231 passes through the connection block 122 and the push plate 134 in sequence to be connected to the second support member 16, and the connection block 122 and the push plate 134 are slidably connected to the second support member 16. Through the provision of the second guide column 1231, the second guide column 1231 is used to guide the movement of the push plate 134 and the layer plate 121 to prevent the push plate 134 or the layer plate 121 from being displaced or rotated during the movement.

[0057] See also Figure 1 In some embodiments, at least two of the constraint components 12 are provided, and at least two of the constraint components 12 are spaced apart along the width direction b of the constraint tray 10. By providing at least two constraint components 12, the formation rate of the battery 200 is effectively improved.

[0058] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A formation restraint device, characterized in that: The invention comprises a restraining tray (10) and a PLC controller (20), wherein the restraining tray (10) comprises a first support member (11), a restraining assembly (12) and a driving assembly (13), wherein the restraining assembly (12) comprises at least one layer plate (121), wherein along the length direction (a) of the restraining tray (10), the first support member (11) is arranged on one side of the layer plate (121), and a clamping cavity (14) is formed between two adjacent layer plates (121) and / or between the layer plate (121) and the first support member (11), wherein the output shaft of the driving assembly (13) is connected to the other side of the layer plate (121), and a detection unit (40) is arranged on the driving assembly (13), wherein the detection unit (40) is used to detect the pressure exerted on the battery (200) in the clamping cavity (14), and the PLC controller (20) is electrically connected to the driving assembly (13) and the detection unit (40).

2. The formation restraint device according to claim 1, characterized in that: The restraining tray (10) further comprises a second support member (16), the second support member (16) being arranged on the other side of the layer plate (121), the second support member (16) being provided with a first mounting hole (161), the driving assembly (13) comprising a first driving member (131), a first screw rod (132), a first bearing (133) and a push plate (134), the first driving member (131) and the push plate (134) being arranged on both sides of the second support member (16), respectively, and the push plate (134) being located between the second support member (16) and the layer plate (121), along the length direction (a) of the restraining tray (10), The first driving member (131) can be close to or away from the second supporting member (16), the first bearing (133) is arranged in the first mounting hole (161), one end of the first screw rod (132) is connected to the first driving member (131), the other end of the first screw rod (132) passes through the first bearing (133) and is connected to the push plate (134), the first screw rod (132) and the first bearing (133) are threadedly connected, the first driving member (131) is electrically connected to the PLC controller (20), and the detection part (40) is arranged on the output shaft of the first driving member (131) or the push plate (134).

3. The formation restraint device according to claim 2, characterized in that: A clamping jaw (135) is provided on the output shaft of the first driving member (131), and a recessed portion (1351) is provided on the clamping jaw (135); a protruding portion (1321) corresponding to the recessed portion (1351) is provided at one end of the first screw rod (132), and the protruding portion (1321) is arranged in the recessed portion (1351).

4. The formation restraint device according to claim 2, characterized in that: A first guide assembly (17) is arranged between the second support member (16) and the push plate (134), and the first guide assembly (17) includes a first guide column (171), a first limit member (172) and a second limit member (173), one end of the first guide column (171) is connected to the push plate (134), the other end of the first guide column (171) passes through the second support member (16) and is connected to the first limit member (172), and the first guide column (171) and the second support member (16) are slidably connected, and the second limit member (173) is sleeved on the first guide column (171) and is located between the two support members and the push plate (134).

5. The formation restraint device according to claim 2, characterized in that: The invention also comprises a transmission assembly (30) arranged at the bottom of the first driving member (131), wherein the transmission assembly (30) comprises a second driving member (31), a guide rail (32), a sliding block (33) and a second screw rod (34), wherein the second screw rod (34) is rotatably arranged on the guide rail (32), the second driving member (31) is arranged on one side of the guide rail (32) and is connected to the second screw rod (34), along the length direction (a) of the restraining tray (10), the sliding block (33) is slidably arranged on the guide rail (32) and is threadedly connected to the second screw rod (34), the first driving member (131) is arranged on the sliding block (33), and the second driving member (31) is electrically connected to the PLC controller (20).

6. The formation restraint device according to claim 1, characterized in that: A support block (1211) is provided on each layer plate (121), and the support block (1211) is located in the clamping cavity (14).

7. The formation restraint device according to claim 2, characterized in that: Both ends of each layer plate (121) are connected to a connecting block (122), each connecting block (122) is provided with a card slot (1221) and a card block (1222), and a width (d) of the card block (1222) is smaller than a width (c) of the card slot (1221), and along a length direction (a) of the restraining tray (10), two adjacent connecting blocks (122) are engaged with each other through the card slot (1221) and the card block (1222).

8. The formation restraint device according to claim 7, characterized in that: Each layer plate (121) and its corresponding connection block (122) are matched in a concave-convex manner.

9. The formation restraint device according to claim 7, characterized in that: The constraint assembly (12) also includes two second guide assemblies (123), and the two second guide assemblies (123) are respectively arranged at the two ends of the layer plate (121), and each second guide assembly (123) includes at least one second guide column (1231), one end of the second guide column (1231) is connected to the first support member (11), and the other end of the second guide column (1231) passes through the connecting block (122) and the pushing plate (134) in turn to be connected to the second support member (16), and the connecting block (122) and the pushing plate (134) are slidably connected to the second support member (16).

10. The formation restraint device according to claim 1, characterized in that: At least two of the restraining components (12) are provided, and along the width direction (b) of the restraining tray (10), at least two of the restraining components (12) are arranged at intervals.

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