Component mold for producing prefabricated wall
By designing detachable mold components and installation mechanisms, the complex problems of traditional mold design fixing and installation are solved, flexible replacement and rapid installation of mold shapes are achieved, and production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202411169578.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-24
- Publication Date
- 2025-02-14
AI Technical Summary
The traditional prefabricated wall production mold is designed to be fixed and cannot be adjusted flexibly, resulting in low production efficiency and poor product quality. At the same time, the mold installation process is complicated, which increases production cost and time.
A prefabricated wall production component mold is designed, including a detachable base plate, a first side plate and a second side plate, and the rapid disassembly and fixing connection is achieved through bolt fixing and installation mechanism.
It realizes flexible replacement and rapid installation of mold shapes, improves mold installation efficiency, meets diversified production needs, and reduces production costs and time.
Smart Images

Figure CN119427511A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mold installation, and in particular to a component mold for prefabricated wall production. Background Art
[0002] Prefabricated wall production is an important part of the construction industry. The flexibility and adjustment performance of the mold directly affect the production efficiency and product quality.
[0003] Traditional prefabricated wall production molds are usually designed with fixed shapes and cannot be flexibly adjusted according to production needs. The mold adjustment method in the related art is not flexible enough, and the mold shape is single, which cannot meet the diversified production needs. At the same time, the complicated mold installation process also increases production costs and time costs, and reduces the installation efficiency of the mold. Summary of the invention
[0004] In order to meet the diversity of the mold production process and improve the installation efficiency of the mold, the present application provides a component mold for prefabricated wall production.
[0005] The present application provides a prefabricated wall production component mold using the following technical solutions: A component mold for prefabricated wall production includes a mold body, the mold body includes a bottom plate and two first side plates and a second side plate installed on the bottom plate, the two first side plates are relatively arranged at two parallel sides of the bottom plate, the two second side plates are relatively arranged at two parallel sides of the bottom plate, the first side plate and the second side plate are fixed by bolts, the first side plate and the second side plate are both detachably connected to the bottom plate, and an installation mechanism is provided between the first side plate, the second side plate and the bottom plate for facilitating the disassembly and assembly of the first side plate and the second side plate.
[0006] By adopting the above technical solution, during the use of the mold, the shapes of the first side panel and the second side panel can be replaced according to actual use requirements, and the installation mechanism can realize rapid disassembly and assembly of the first side panel and the second side panel, thereby improving the installation efficiency of the mold.
[0007] Optionally, the mounting mechanism includes a base, the bottom plate is placed on the base, and a positioning component is provided between the base and the bottom plate to place the bottom plate in the middle of the base.
[0008] By adopting the above technical solution, when installing the mold, the positioning component makes the bottom plate be located in the middle of the base, which further facilitates the subsequent installation of the first side plate and the second side plate around the bottom plate.
[0009] Optionally, the positioning assembly includes a positioning groove opened in the middle of the base and a positioning block fixed in the middle of the bottom plate, and the positioning block and the positioning groove are plugged into each other.
[0010] By adopting the above technical solution, the positioning block is plugged into the positioning groove, and the bottom plate is located in the middle of the base, which reduces the sliding of the bottom plate in the horizontal direction when it is placed on the base.
[0011] Optionally, the mounting mechanism further includes a first clamping assembly for pressing the two first side panels toward the bottom plate, and a second clamping assembly for pressing the two second side panels toward the bottom plate.
[0012] By adopting the above technical solution, the first clamping assembly makes the lower side of the first side panel press against the side wall of the bottom plate, and the second clamping assembly makes the lower side of the second side panel press against the side wall of the bottom plate, and the first side panel and the second side panel press against each other, thereby facilitating the subsequent fixed connection between the first side panel and the second side panel.
[0013] Optionally, the first clamping assembly includes two first mounting plates relatively fixed to the base, the first mounting plates are both located on a side of the first side plate away from the bottom plate, one of the first mounting plates is threadedly connected to a first screw, and a first slide plate is also slidably mounted on the first mounting plate, the first slide plate is located on a side close to the first side plate and is arranged along the length direction of the first side plate, the first screw rod abuts against a side of the first slide plate away from the first side plate, two first connecting plates are installed on the side of the first slide plate away from the first screw, the two first connecting plates are relatively arranged on the first slide plate and extend in a direction away from the first slide plate, one end of the first connecting plate away from the first slide plate is slidably connected to the second clamping assembly, the second clamping assembly includes a second slide plate, a second slide groove is provided on a side of the second slide plate close to the second side plate, a second bidirectional ball screw is rotatably mounted in the second slide groove, side walls at both ends of the second bidirectional ball screw are threadedly connected to the first connecting plate, and one end of the first connecting plate away from the first push plate is slidably connected to the second slide groove, and a first push plate is also fixed on the first slide plate, and the first push plate can abut against a side of the first side plate away from the bottom plate.
[0014] By adopting the above technical solution, the first clamping assembly can simultaneously achieve the tightening of the two first side plates. When the first screw is rotated, the two first sliding plates can simultaneously slide in the direction close to the first side plate, and the first push plate can be pressed against the outer side of the first side plate. Since the position of the bottom plate is in the middle of the base, the moving distance of the two first push plates is ensured to be the same, and the two first side plates can be tightened at the same time, thereby improving the installation efficiency between the first side plate and the bottom plate.
[0015] Optionally, the first push plate is parallel to the length direction of the first side plate, and a first insertion rod is fixed to the side of the first push plate close to the first side plate. A first insertion hole for inserting the first insertion rod is formed on the first side plate, and a mounting hole that intersects with the first insertion hole is formed on the peripheral side of the bottom plate. When the first push plate is pressed against the first side plate, the first insertion rod simultaneously passes through the first insertion hole and the mounting hole.
[0016] By adopting the above technical solution, the first insertion rod is inserted into the first insertion hole and the mounting hole at the same time, so as to limit the position of the first side plate and reduce the situation where the first side plate separates from the bottom plate in the vertical direction.
[0017] Optionally, there are multiple first insertion rods, and the multiple first insertion rods are arranged at intervals along the length direction of the first push plate.
[0018] By adopting the above technical solution, the plurality of first insertion rods further improve the connection stability between the first side plate and the bottom plate.
[0019] Optionally, the second clamping assembly includes two second mounting plates relatively fixed to the base, the second mounting plates being located on a side of the second side plate away from the bottom plate, a second screw being threadedly connected to one of the second mounting plates, the second screw being able to abut against a side of the second slide away from the second side plate, and the second slide being located on a side of the second mounting plate close to the second side plate and being slidably connected to the second mounting plate, the second slide being slidably connected to the first push plate through the first connecting plate, a first sliding groove being provided on the first push plate, a first bidirectional ball screw being rotatably installed in the first sliding groove, a first slider being fixed to a side of the first connecting plate away from the second slide, the first slider being slidably connected to the first sliding groove, and the first slider being threadedly connected to the first bidirectional ball screw.
[0020] By adopting the above technical solution, the second clamping assembly can quickly tighten the two second side plates. When the second screw is adjusted to rotate so that the second slide plate slides toward the direction close to the second side plate, the two second slide plates slide at the same time, thereby achieving rapid clamping of the second side plates.
[0021] Optionally, a second plug rod is fixed to one side of the second slide plate close to the second side plate, and a second plug hole for inserting the second plug rod is formed on the second side plate, and the second plug rod passes through the second plug hole and is plugged into the mounting hole.
[0022] By adopting the above technical solution, when the second slide plate is pressed against the outer side of the second side plate, the second insertion rod passes through the second insertion hole and the mounting hole, thereby reducing the second side plate from separating from the bottom plate in the vertical direction.
[0023] Optionally, there are multiple second insertion rods, and the multiple second insertion rods are arranged at intervals along the length direction of the second slide plate.
[0024] By adopting the above technical solution, the plurality of second insertion rods further enhance the connection stability between the second side plate and the bottom plate.
[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the use of the mold, the shapes of the first side plate and the second side plate can be replaced according to actual use requirements, and the installation mechanism can realize the rapid disassembly and assembly of the first side plate and the second side plate, thereby improving the installation efficiency of the mold; 2. The first clamping assembly makes the lower side of the first side plate press against the side wall of the bottom plate, and the second clamping assembly makes the lower side of the second side plate press against the side wall of the bottom plate, and the first side plate presses against the second side plate, so as to facilitate the subsequent fixed connection of the first side plate and the second side plate; 3. The second clamping assembly can quickly clamp the two second side plates. When the second screw is adjusted to rotate so that the second slide plate slides toward the direction close to the second side plate, the two second slide plates slide simultaneously, thereby quickly clamping the second side plates. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural diagram of the mold body and the mounting mechanism.
[0027] Figure 2 It is a structural schematic diagram of the mold body.
[0028] Figure 3 It is a structural diagram of the installation mechanism.
[0029] Figure 4 The first clamping component is Figure 3 A partial enlarged view of point A in the middle.
[0030] Description of reference numerals: 1. mold body; 11. bottom plate; 111. mounting hole; 12. first side plate; 121. first plug hole; 13. second side plate; 131. second plug hole; 2. mounting mechanism; 21. base; 22. positioning assembly; 221. positioning block; 222. positioning groove; 23. first clamping assembly; 231. first mounting plate; 2311. first guide hole; 232. first screw rod; 233. first slide plate; 2331. first slide groove; 2 34. First guide rod; 235. First bidirectional ball screw; 236. First slider; 237. First connecting plate; 238. First push block; 239. First push plate; 2391. First insertion rod; 24. Second clamping assembly; 241. Second mounting plate; 2411. Second guide hole; 242. Second screw rod; 243. Second slide plate; 2431. Second slide groove; 244. Second guide rod; 245. Second bidirectional ball screw; 246. Second insertion rod. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-4 This application is described in further detail.
[0032] The embodiment of the present application discloses a component mold for producing a prefabricated wall.
[0033] Reference Figure 1 and Figure 2 A prefabricated wall component production mold includes a mold body 1, the mold body 1 includes a horizontally arranged bottom plate 11, two mutually parallel sides of the bottom plate 11 are each installed with a first side plate 12, so that the two first side plates 12 are parallel to each other, and the other two mutually parallel sides of the bottom plate 11 are each installed with a second side plate 13, so that the two second side plates 13 are parallel to each other, the first side plate 12 and the second side plate 13 are both vertically arranged, and the first side plate 12 and the second side plate 13 are perpendicular to each other, and the sides where the first side plate 12 and the second side plate 13 abut against each other are fixed by bolts to ensure the stability of the mold when in use, and an installation mechanism 2 is provided between the first side plate 12, the second side plate 13 and the bottom plate 11, and the installation mechanism 2 can make the two first side plates 12 and the second side plates 13 quickly disassembled or installed on the bottom plate 11, thereby improving the installation efficiency, and the first side plates 12 and the second side plates 13 of different shapes can be quickly installed according to the use requirements to meet the use requirements of the mold body 1.
[0034] Reference Figure 2 and Figure 3 The mounting mechanism 2 includes a horizontally arranged base 21, the bottom plate 11 is horizontally placed on the upper surface of the base 21, and a positioning assembly 22 is provided between the bottom plate 11 and the base 21, the positioning assembly 22 enables the bottom plate 11 to be horizontally placed at the middle position of the base 21, the positioning assembly 22 includes a positioning block 221 and a positioning groove 222, the positioning groove 222 is opened at the middle position of the base 21, the positioning block 221 is fixed at the middle position of the bottom plate 11, and the positioning block 221 is plugged into the positioning groove 222, so that the bottom plate 11 can be quickly placed at the middle position of the base 21.
[0035] The mounting mechanism 2 also includes a first clamping assembly 23 and a second clamping assembly 24. The first clamping assembly 23 can make the two first side panels 12 press against the side walls of the bottom plate 11 to achieve rapid fixation of the first side panels 12 and the bottom plate 11. The second clamping assembly 24 can make the two second side panels 13 press against the other two side walls of the bottom plate 11 to achieve rapid fixation of the second side panels 13 and the bottom plate 11, thereby facilitating the subsequent installation of bolts between the first side panels 12 and the second side panels 13 to ensure the connection stability of the mold body 1.
[0036] Reference Figure 3 and Figure 4The first clamping assembly 23 includes two first mounting plates 231 fixed on the upper surface of the base 21. The two first mounting plates 231 are parallel to each other and symmetrically arranged with respect to the base 21. A first screw rod 232 is threadedly connected to one of the first mounting plates 231. The axis of the first screw rod 232 is horizontally arranged and perpendicular to the first mounting plate 231. A first slide plate 233 is slidably installed on one side of the first mounting plate 231 close to the first side plate 12. The first slide plate 233 is parallel to the first mounting plate 231. The first screw rod 232 penetrates the first mounting plate 231 and is slidably connected to the first slide plate 233. 233 is abutted, two first guide rods 234 are vertically fixed on the first slide plate 233, the two first guide rods 234 are separated at both ends of the first slide plate 233, the first guide rods 234 extend horizontally toward the direction close to the first mounting plate 231, and the first mounting plate 231 is provided with a first guide hole 2311 for the first guide rod 234 to penetrate, the first guide rods 234 and the first guide holes 2311 are opposite to each other and plugged into each other, and the first slide plate 233 can be horizontally slid on the base 21 toward the direction close to the first side plate 12 by rotating the first screw rod 232.
[0037] A first sliding groove 2331 is provided on the side of the first slide plate 233 away from the first screw rod 232. The first sliding groove 2331 is provided along the length direction of the first slide plate 233, and a first bidirectional ball screw 235 is rotatably installed in the first sliding groove 2331. The first bidirectional ball screw 235 has threads with opposite rotation directions. The length direction of the first bidirectional ball screw 235 is parallel to the length direction of the first sliding groove 2331. Two first sliders 236 are threadedly connected to the first bidirectional ball screw 235. The two first sliders 236 are relatively arranged on the first bidirectional ball screw 235, and the first slider 236 is slidably installed in the first sliding groove 2331. When the first bidirectional ball screw 235 rotates forward or reversely, the two first sliders 236 on the first bidirectional ball screw 235 can slide in a direction close to or away from each other.
[0038] A first connecting plate 237 is fixed on the first slider 236, and the first connecting plate 237 is located on the outside of the first sliding groove 2331, and the first connecting plate 237 is parallel to the first slide plate 233, and the two first connecting plates 237 extend in a direction away from the first slide plate 233, and the first connecting rod extends in a direction close to the second clamping assembly 24, and is slidably connected to the second clamping assembly 24.
[0039] A first push block 238 is also fixed to the side of the first slide plate 233 close to the bottom plate 11. The first push block 238 is located between the two first connecting plates 237. The width of the first push block 238 is not less than the width of the first connecting plate 237. A first push plate 239 is also fixed to the side of the first push block 238 away from the first slide plate 233. The first push plate 239 is parallel to the first slide plate 233. The first connecting plate 237 can slide horizontally between the first push plate 239 and the first slide plate 233. The first push plate 239 can slide horizontally with the first connecting plate 237. The side panel 12 is pressed tightly, and a plurality of first plug rods 2391 are fixed at intervals in the length direction of the first push plate 239. The first plug rods 2391 are parallel to each other. A plurality of first plug holes 121 are provided on the first side panel 12. A plurality of mounting holes 111 are provided on the side walls around the bottom panel 11 at intervals, and the first plug holes 121 are opposite to the mounting holes 111 one by one. The first plug rods 2391 can be inserted into the first plug holes 121 and the mounting holes 111 at the same time, thereby reducing the first side panel 12 from separating from the bottom panel 11 in the vertical direction.
[0040] Reference Figure 3 The second clamping assembly 24 includes two second mounting plates 241 fixed on the base 21, the second mounting plates 241 are both perpendicular to the first mounting plates 231, the two second mounting plates 241 are parallel to each other and symmetrically arranged about the base plate 11, one of the second mounting plates 241 is threadedly connected with a second screw rod 242, the second screw rod 242 is horizontally arranged and perpendicular to the second mounting plate 241, a second slide plate 243 is slidably installed on one side of the second mounting plate 241 close to the base plate 11, the second slide plate 243 is parallel to the second mounting plate 241, and two second guide rods 244 are vertically fixed on one side of the second slide plate 243 close to the second mounting plate 241, the two second guide rods 244 are symmetrically arranged about the second slide plate 243 and both extend horizontally in the direction close to the second mounting, and two second guide holes 2411 are opened on the second mounting plate 241, the second guide rods 244 and the second guide holes 2411 are opposite to each other and plugged into each other, so that the second slide plate 243 can stably slide horizontally on the base 21.
[0041] Two second slide grooves 2431 are provided on one side of the second slide plate 243 close to the base 21, and the second slide grooves 2431 are symmetrically arranged about the second slide plate 243, and a second bidirectional ball screw 245 is rotatably installed in the second slide grooves 2431, and the side walls at both ends of the second bidirectional ball screw 245 have threads rotating in opposite directions, and the end of the first connecting plate 237 away from the first slide plate 233 extends into the second slide groove 2431 and is slidingly connected to the second slide groove 2431, and is threadedly connected to the second bidirectional ball screw 245, and the rotation of the second bidirectional ball screw 245 can realize the sliding of the first connecting plate 237 in the direction of approaching or moving away from each other.
[0042] A plurality of second plug rods 246 are vertically fixed to one side of the second slide plate 243 close to the base plate 11. The plurality of second plug rods 246 are spaced apart along the length direction of the second slide plate 243. A plurality of second plug holes 131 are provided through the second side plate 13. The second plug rods 246 are opposite to the second plug holes 131 one by one, and the mounting holes 111 on the base plate 11 can be connected to the second plug holes 131. When the second push plate presses the second side plate 13 against the base plate 11, the second plug rods 246 can be inserted into the second plug holes 131 and the mounting holes 111 at the same time, thereby reducing the second plug rods 246 from being separated from the base plate 11 in the vertical direction and ensuring the stability of the connection.
[0043] The implementation principle of a component mold for prefabricated wall production in the embodiment of the present application is: When the first side plate 12 and the second side plate 13 need to be quickly installed around the bottom plate 11, the bottom plate 11 is placed in the middle of the base 21, and then the two first side plates 12 are placed on both sides of the bottom plate 11, and the two second side plates 13 are placed on the other two sides of the bottom plate 11, and the first screw rod 232 and the second screw rod 242 are adjusted to make the two first slide plates 233 and the second slide plate 243 slide towards the bottom plate 11 at the same time, so that the first push plate 239 is pressed against the first side plate 12 and the second slide plate 243 is pressed against the first push plate 239. The first side plate 12 and the second side plate 13 are pressed against the second side plate 13, so that the first side plate 12 and the second side plate 13 can be quickly pressed against and fixed to the peripheral side of the bottom plate 11, and the first plug rod 2391 passes through the first plug hole 121 and is plugged into the mounting hole 111 on the bottom plate 11, and the second plug rod 246 passes through the second plug hole 131 and is plugged into the mounting hole 111 on the bottom plate 11, so as to reduce the separation of the first side plate 12 and the second side plate 13 in the vertical direction, and further enhance the connection stability between the first side plate 12, the second side plate 13 and the bottom plate 11.
[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A component mold for producing a prefabricated wall, comprising a mold body (1), the mold body (1) comprising a bottom plate (11) and two first side plates (12) and a second side plate (13) mounted on the bottom plate (11), the two first side plates (12) being arranged oppositely at two parallel sides of the bottom plate (11), and the two second side plates (13) being arranged oppositely at two parallel sides of the bottom plate (11), characterized in that: The first side plate (12) and the second side plate (13) are fixed by bolts, and the first side plate (12) and the second side plate (13) are both detachably connected to the bottom plate (11). An installation mechanism (2) is provided between the first side plate (12), the second side plate (13) and the bottom plate (11) for facilitating the disassembly and assembly of the first side plate (12) and the second side plate (13).
2. A prefabricated wall component mold according to claim 1, characterized in that: The mounting mechanism (2) comprises a base (21), the bottom plate (11) is placed on the base (21), and a positioning component (22) is provided between the base (21) and the bottom plate (11) for placing the bottom plate (11) in a middle position of the base (21).
3. A prefabricated wall component mold according to claim 2, characterized in that: The positioning assembly (22) comprises a positioning groove (222) provided in the middle of the base (21) and a positioning block (221) fixed in the middle of the bottom plate (11); the positioning block (221) and the positioning groove (222) are plugged into each other.
4. The component mold for prefabricated wall production according to claim 1, characterized in that: The mounting mechanism (2) further comprises a first clamping assembly (23) for pressing the two first side plates (12) in a direction close to the bottom plate (11), and a second clamping assembly (24) for pressing the two second side plates (13) in a direction close to the bottom plate (11).
5. A prefabricated wall production component mold according to claim 4, characterized in that: The first clamping assembly (23) comprises two first mounting plates (231) relatively fixed on the base (21); the first mounting plates (231) are both located on a side of the first side plate (12) away from the bottom plate (11); a first screw rod (232) is threadedly connected to one of the first mounting plates (231); a first slide plate (233) is also slidably mounted on the first mounting plate (231); the first slide plate (233) is located on a side close to the first side plate (12) and is arranged along the length direction of the first side plate (12); the first screw rod (232) abuts against a side of the first slide plate (233) away from the first side plate (12); two first connecting plates (237) are mounted on a side of the first slide plate (233) away from the first screw rod (232); the two first connecting plates (237) are relatively arranged on the first slide plate (233) and face away from the first side plate (12); The first connecting plate (237) extends in the direction of the slide plate (233), and one end of the first connecting plate (237) away from the first slide plate (233) is slidably connected to the second clamping assembly (24), and the second clamping assembly (24) includes a second slide plate (243), and a second slide groove (2431) is provided on a side of the second slide plate (243) close to the second side plate (13), and a second bidirectional ball screw (245) is rotatably installed in the second slide groove (2431), and the side walls of both ends of the second bidirectional ball screw (245) are threadedly connected to the first connecting plate (237), and one end of the first connecting plate (237) away from the first push plate (239) is slidably connected to the second slide groove (2431), and a first push plate (239) is also fixed on the first slide plate (233), and the first push plate (239) can abut against a side of the first side plate (12) away from the bottom plate (11).
6. A prefabricated wall production component mold according to claim 5, characterized in that: The first push plate (239) is parallel to the length direction of the first side plate (12); a first insertion rod (2391) is fixed to a side of the first push plate (239) close to the first side plate (12); a first insertion hole (121) for inserting the first insertion rod (2391) is provided on the first side plate (12); a mounting hole (111) intersecting the first insertion hole (121) is provided on the peripheral side of the bottom plate (11); when the first push plate (239) is pressed against the first side plate (12), the first insertion rod (2391) simultaneously penetrates the first insertion hole (121) and the mounting hole (111).
7. A prefabricated wall component mold according to claim 6, characterized in that: There are multiple first insertion rods (2391), and the multiple first insertion rods (2391) are arranged at intervals along the length direction of the first push plate (239).
8. The component mold for prefabricated wall production according to claim 4, characterized in that: The second clamping assembly (24) comprises two second mounting plates (241) fixed relatively to the base (21), the second mounting plates (241) being located on a side of the second side plate (13) away from the bottom plate (11), one of the second mounting plates (241) being threadedly connected with a second screw rod (242), the second screw rod (242) being capable of abutting against a side of a second slide plate (243) away from the second side plate (13), and the second slide plate (243) being located on a side of the second mounting plate (241) close to the second side plate (13) being slidably connected to the second mounting plate (241). The second slide plate (243) is slidably connected to the first push plate (239) through the first connecting plate (237); the first push plate (239) is provided with a first slide groove (2331); a first bidirectional ball screw (235) is rotatably installed in the first slide groove (2331); a first slider (236) is fixed to the side of the first connecting plate (237) away from the second slide plate (243); the first slider (236) is slidably connected to the first slide groove (2331), and the first slider (236) is threadedly connected to the first bidirectional ball screw (235).
9. A component mold for prefabricated wall production according to claim 8, characterized in that: A second insertion rod (246) is fixed to one side of the second slide plate (243) close to the second side plate (13); a second insertion hole (131) for the second insertion rod (246) to be inserted is provided on the second side plate (13); the second insertion rod (246) passes through the second insertion hole (131) and is plugged into the mounting hole (111).
10. A component mold for prefabricated wall production according to claim 9, characterized in that: There are a plurality of second insertion rods (246), and the plurality of second insertion rods (246) are arranged at intervals along the length direction of the second slide plate (243).