Continuous profiling equipment for aluminum plates

Abstract

The invention discloses continuous profiling equipment for aluminum plates, and relates to the technical field of plate processing. The continuous profiling equipment for the aluminum plates comprises an equipment base, a supporting and fixing frame, an electric push rod, a lifting control platform, a bearing seat, a plurality of profiling die holders, a switching unit and a locking unit. According to the continuous profiling equipment for the aluminum plates, through the design of the equipment base, the supporting and fixing frame, the electric push rod, the lifting control platform, the bearing seat, the multiple profiling mold bases, the switching unit and the locking unit, the profiling mold bases are borne by the bearing seat, and the multiple sets of profiling mold bases can be conveniently and rapidly switched through the switching unit, so that the working efficiency is improved. When a specific profiling model of an aluminum plate blank needs to be replaced, the profiling die holders can be rapidly switched without shutdown, rapid switching machining of multiple models is achieved, time and labor are saved during operation, the machining efficiency of equipment is improved, and labor of field personnel is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plate processing, in particular to a continuous pressing device for aluminum plates. Background Art

[0002] Aluminum sheet continuous extrusion equipment is a highly efficient and automated production equipment, which is mainly used to process aluminum sheets into profile products with specific shapes and sizes through continuous extrusion. This equipment has a wide range of applications in the aluminum processing industry, such as construction, automobiles, aerospace and other fields.

[0003] The working principle of the continuous profiling equipment for aluminum plates is mainly based on the continuous extrusion technology. Aluminum plates that meet the requirements are prepared as blanks, and the blanks are transported by a conveyor belt. When they are transported to the bottom of the mold, the push rod is used to push the mold to continuously extrude the blanks, so that the aluminum plate blanks are deformed by force, and finally form aluminum profiles with specific shapes and sizes. This processing method is simple to operate, but the mold model is single. Many aluminum plate blanks need to be replaced with specific profiling models when they are processed. The processing method of the prior art is to replace the profiling mold every time the profiling model is switched. The traditional replacement method is cumbersome, time-consuming and labor-intensive to operate, and the replacement requires shutdown, which reduces the processing efficiency of the equipment. Therefore, it cannot meet the needs. In view of the shortcomings of the prior art, the present invention provides a continuous profiling equipment for aluminum plates to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a continuous profiling equipment for aluminum plates. Through the design of the equipment base, the supporting frame, the electric push rod, the lifting control platform, the bearing seat, a plurality of profiling die seats, the switching unit and the locking unit, the profiling die seats are supported by the bearing seat, and multiple groups of profiling die seats are convenient for rapid station switching through the switching unit. Therefore, when the aluminum plate blank needs to be replaced with a specific profiling model, the profiling die seat can be quickly switched without stopping the machine, thereby realizing rapid switching processing of multiple models, saving time and effort in operation, improving equipment processing efficiency, and reducing on-site personnel labor.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum plate continuous pressing device, including a device base, a supporting frame, an electric push rod, a lifting control platform, a bearing seat, a plurality of pressing die seats, a switching unit and a locking unit; A conveying platform for transporting aluminum plates is provided on the base of the equipment; The supporting fixing frame is arranged on the equipment base; The electric push rod is arranged on the supporting fixing frame; The lifting control platform is arranged at the output end of the electric push rod and is slidably connected to the supporting fixed frame; The bearing seat is arranged below the lifting control platform, and a multi-station structure is arranged on the bearing seat; A plurality of pressing die seats are arranged on any group of station structures of the bearing seat; The switching unit is arranged between the lifting control platform and the bearing seat and is used to switch the positions of multiple groups of pressing mold seats; The locking unit is arranged inside the bearing seat, and the locking unit is used for quickly locking and limiting a plurality of pressing die seats.

[0006] Preferably, limiting shafts are provided on both sides of the bearing seat, side supports are provided on the lifting control platform, and shaft seat brackets for supporting the limiting shafts are provided on the side supports.

[0007] Preferably, the switching unit comprises: A first worm gear is arranged on the limiting shaft; A first worm, disposed on the shaft seat bracket and meshing with the first worm wheel; The driving unit is arranged on the side support and is used for driving the first worm to rotate.

[0008] Preferably, the driving unit comprises: A driving motor is arranged on the side support; A transmission rod, arranged at the output end of the driving motor; A second worm gear is disposed on the transmission rod; A guide shaft, arranged on the shaft body of the first worm; The second worm wheel is arranged on the guide shaft and meshes with the second worm.

[0009] Preferably, a reinforcement seat is provided on the side support seat, and the reinforcement seat is used to provide support and limitation for the first worm and the guide shaft respectively.

[0010] Preferably, a mounting seat is provided on the bearing seat, and an embedding platform is provided on the pressing die seat, and the embedding platform is movably clamped in the mounting seat.

[0011] Preferably, the locking unit comprises: A movable arm is arranged inside the bearing seat; A limit block is arranged on the movable arm and is slidably connected to the bearing seat; A locking rod is arranged on the limit block, a locking hole is provided on the embedding platform, and the locking rod is movably inserted into the locking hole; A double-threaded lead screw is rotatably connected to the bearing seat and is threadedly connected to the movable arm.

[0012] Preferably, the double-threaded screw is provided with a rotating handle.

[0013] Preferably, a slide groove corresponding to the position of the limit block is formed on the bearing seat, and a positioning groove corresponding to the position of the limit block and the locking rod is formed on the embedding platform.

[0014] Preferably, a guide rail rod is fixedly connected to the interior of the bearing seat, and the guide rail rod is used to provide support for the movable arm.

[0015] The present invention discloses a continuous pressing device for aluminum plates, which has the following beneficial effects: 1. The aluminum sheet continuous profiling equipment, through the design of the equipment base, the supporting frame, the electric push rod, the lifting control platform, the bearing seat, several profiling die seats, the switching unit and the locking unit, makes the profiling die seat supported by the bearing seat, and multiple groups of profiling die seats are convenient for fast station switching through the switching unit. Therefore, when the aluminum sheet blank needs to be replaced with a specific profiling model, the profiling die seat can be quickly switched without stopping the machine, so as to realize the rapid switching processing of multiple models, save time and labor in operation, improve the processing efficiency of the equipment, and reduce the labor of on-site personnel.

[0016] 2. The locking unit of the aluminum sheet continuous profiling equipment is used to install and lock the profiling die base on the bearing seat, so that multiple groups of profiling die bases are easy to disassemble and assemble. On the one hand, it makes it convenient to clean and maintain the profiling die base, and on the other hand, it makes it convenient to replace the model of the profiling die base. In the subsequent processing process, it is convenient to set up more models of profiling die bases for profiling aluminum sheets, ensuring that the profiling die base is easy to disassemble, replace, and adjust the profiling shape, thereby meeting various production needs.

[0017] 3. The switching unit of the aluminum sheet continuous profiling equipment has a compact structure and is easy to operate. When the model of the profiling die seat needs to be changed, the first worm is directly driven to rotate through the driving unit, and the first worm is used to drive the first worm wheel to rotate, and then the first worm wheel drives the bearing seat to rotate, so that the bearing seat drives multiple groups of profiling die seats to rotate and switch positions. The driving unit has a simple structural design and stable operation. The driving unit adopts a driving motor for transmission. At the same time, through the two groups of second worms, guide shafts and second worm wheels symmetrically designed on both sides of the bearing seat, when the position of the profiling die seat is switched, both sides of the bearing seat are synchronously and stably stressed, the adjustment process of the bearing seat is stable, and the force effect of the bearing seat is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is the front view of the present invention; Figure 3 It is a structural schematic diagram of the lifting control platform of the present invention; Figure 4 It is a structural schematic diagram of the switching unit of the present invention; Figure 5 It is a disassembly schematic diagram of the pressing die base of the present invention; Figure 6 It is a structural schematic diagram of the locking hole of the present invention; Figure 7 is a cross-sectional view of the bearing seat of the present invention; Figure 8 It is a structural schematic diagram of the locking unit of the present invention.

[0020] In the figure: 1. Equipment base; 101. Conveying platform; 2. Supporting and fixing frame; 3. Electric push rod; 4. Lifting control platform; 401. Side support seat; 402. Axle seat bracket; 403. Reinforcement seat; 5. Bearing seat; 501. Mounting seat; 502. Slide groove; 503. Limiting shaft; 6. Pressing die seat; 601. Embedding table; 602. Positioning groove; 603. Locking hole; 7. Switching unit; 71. First worm gear; 72. First worm; 73. Driving unit; 731. Driving motor; 732. Transmission rod; 733. Second worm; 734. Second worm gear; 735. Guide shaft; 8. Locking unit; 801. Movable arm; 8011. Guide rail rod; 802. Limiting block; 803. Locking rod; 804. Double threaded screw; 8041. Turning handle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The embodiment of the present application provides a continuous profiling equipment for aluminum plates, which solves the problem that the mold model of the prior art equipment is single. When processing many aluminum plate blanks, it is necessary to replace a specific profiling model. The processing method of the prior art is to replace the profiling mold every time the profiling model is switched. The traditional replacement method is cumbersome, time-consuming and labor-intensive to operate, and the replacement requires shutdown, which reduces the processing efficiency of the equipment and cannot meet the needs.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1: The embodiment of the present invention discloses a continuous pressing device for aluminum plates. Figure 1-8 As shown, it includes a device base 1, a supporting frame 2, an electric push rod 3, a lifting control platform 4, a bearing seat 5, a plurality of pressing mold seats 6, a switching unit 7 and a locking unit 8; A conveying platform 101 for conveying aluminum plates is provided on the equipment base 1; the conveying platform 101 realizes continuous conveying of aluminum plates, thereby realizing continuous profiling processing; The support fixing frame 2 is arranged on the equipment base 1; the electric push rod 3 is arranged on the support fixing frame 2; the support fixing frame 2 is used to provide support for the electric push rod 3; The lifting control platform 4 is arranged at the output end of the electric push rod 3 and is slidably connected to the supporting fixed frame 2; the electric push rod 3 is used to adjust the height of the lifting control platform 4, and the supporting fixed frame 2 provides lateral support for the lifting control platform 4 to ensure good stability of the lifting control platform 4; The bearing seat 5 is arranged below the lifting control platform 4, and a multi-station structure is arranged on the bearing seat 5; a plurality of pressing die seats 6 are arranged on any one group of the station structures of the bearing seat 5; through the multi-station structure design of the bearing seat 5, it is convenient to install a plurality of groups of pressing die seats 6 on the bearing seat 5, so as to realize pressing of various shapes of aluminum plates; The switching unit 7 is arranged between the lifting control platform 4 and the bearing seat 5 and is used to switch the positions of the multiple groups of profiling die seats 6. The device facilitates the rapid switching of the positions of the multiple groups of profiling die seats 6 on the bearing seat 5 through the design of the switching unit 7, thereby rapidly switching various types of profiling effects, so that the profiling effect of the aluminum plate is good. The locking unit 8 is arranged inside the bearing seat 5, and the locking unit 8 is used to quickly lock and limit the position of a plurality of profiling die seats 6. The locking unit 8 is used to install and lock the profiling die seats 6 on the bearing seat 5, so that multiple groups of profiling die seats 6 are easy to disassemble and assemble, which makes it easy to clean and maintain the profiling die seats 6, and on the other hand, makes it easy to replace the model of the profiling die seats 6. In the subsequent processing process, it is easy to set more models of profiling die seats 6 for profiling of aluminum plates, ensuring that the profiling die seats 6 are easy to disassemble, replace, and adjust the profiling shape, thereby meeting various production needs.

[0025] Limiting shafts 503 are provided on both sides of the bearing seat 5, and side supports 401 are provided on the lifting control platform 4. The side supports 401 are provided with shaft seat brackets 402 for supporting the limiting shafts 503. Through the design of the limiting shafts 503, the side supports 401 and the shaft seat brackets 402, the device achieves a good supporting effect of the lifting control platform 4 on the bearing seat 5.

[0026] The switching unit 7 comprises: The first worm gear 71 is disposed on the limiting shaft 503; A first worm 72 is disposed on the shaft seat bracket 402 and meshes with the first worm wheel 71; The driving unit 73 is disposed on the side support 401 and is used to drive the first worm 72 to rotate.

[0027] The switching unit 7 in the device has a compact structure and is easy to operate. When the model of the pressing die base 6 needs to be changed, the first worm 72 is directly driven to rotate by the driving unit 73, and the first worm 72 is used to drive the first worm wheel 71 to rotate, so that the first worm wheel 71 drives the supporting seat 5 to rotate, so that the supporting seat 5 drives multiple groups of pressing die bases 6 to rotate and switch work stations.

[0028] The driving unit 73 includes: The driving motor 731 is arranged on the side support 401; The transmission rod 732 is arranged at the output end of the driving motor 731; The second worm 733 is disposed on the transmission rod 732; A guide shaft 735 is disposed on the shaft of the first worm 72; The second worm gear 734 is disposed on the guide shaft 735 and meshes with the second worm 733 .

[0029] The driving unit 73 in the device has a simple structural design and stable operation. The driving unit 73 adopts a driving motor 731 for transmission. At the same time, through the two sets of second worm gears 733, guide shafts 735 and second worm wheels 734 designed symmetrically on both sides of the supporting seat 5, when the station of the pressing mold 6 is switched, the two sides of the supporting seat 5 are subjected to force synchronously and stably, the adjustment process of the supporting seat 5 is stable, and the force effect of the supporting seat 5 is good.

[0030] When the driving unit 73 is working, the driving motor 731 drives the transmission rod 732 to rotate, the transmission rod 732 drives the second worm 733 to rotate, the second worm 733 drives the second worm wheel 734 to rotate, the second worm wheel 734 drives the guide shaft 735 to rotate, and then drives the first worm 72 to rotate through the guide shaft 735.

[0031] A reinforcement seat 403 is provided on the side support seat 401, and the reinforcement seat 403 is used to provide support and limit for the first worm 72 and the guide shaft 735. The reinforcement seat 403 is designed to ensure that the force of the first worm 72 and the guide shaft 735 is stable, thereby ensuring stable operation when switching multiple groups of pressing mold seats 6; When continuously pressing the aluminum sheet, after adjusting the corresponding pressing die seat 6, the electric push rod 3 drives the lifting control platform 4 to move, the lifting control platform 4 drives the bearing seat 5 to move, the bearing seat 5 drives the pressing die seat 6 to move, the pressing die seat 6 is used to press the aluminum sheet, and the conveying platform 101 conveys the pressing die seat 6 to achieve continuous pressing; A mounting seat 501 is provided on the bearing seat 5 , and an embedding platform 601 is provided on the pressing die seat 6 . The embedding platform 601 is movably clamped in the mounting seat 501 .

[0032] Embodiment 2: The embodiment of the present invention discloses a continuous pressing device for aluminum plates. Figure 1-8 As shown, it includes a device base 1, a supporting frame 2, an electric push rod 3, a lifting control platform 4, a bearing seat 5, a plurality of pressing mold seats 6, a switching unit 7 and a locking unit 8; A conveying platform 101 for conveying aluminum plates is provided on the equipment base 1; the conveying platform 101 realizes continuous conveying of aluminum plates, thereby realizing continuous profiling processing; The support fixing frame 2 is arranged on the equipment base 1; the electric push rod 3 is arranged on the support fixing frame 2; the support fixing frame 2 is used to provide support for the electric push rod 3; The lifting control platform 4 is arranged at the output end of the electric push rod 3 and is slidably connected to the supporting fixed frame 2; the electric push rod 3 is used to adjust the height of the lifting control platform 4, and the supporting fixed frame 2 provides lateral support for the lifting control platform 4 to ensure good stability of the lifting control platform 4; The bearing seat 5 is arranged below the lifting control platform 4, and a multi-station structure is arranged on the bearing seat 5; a plurality of pressing die seats 6 are arranged on any one group of the station structures of the bearing seat 5; through the multi-station structure design of the bearing seat 5, it is convenient to install a plurality of groups of pressing die seats 6 on the bearing seat 5, so as to realize pressing of various shapes of aluminum plates; The switching unit 7 is arranged between the lifting control platform 4 and the bearing seat 5 and is used to switch the positions of the multiple groups of profiling die seats 6. The device facilitates the rapid switching of the positions of the multiple groups of profiling die seats 6 on the bearing seat 5 through the design of the switching unit 7, thereby rapidly switching various types of profiling effects, so that the profiling effect of the aluminum plate is good. The locking unit 8 is arranged inside the bearing seat 5, and the locking unit 8 is used to quickly lock and limit the position of a plurality of profiling die seats 6. The locking unit 8 is used to install and lock the profiling die seats 6 on the bearing seat 5, so that multiple groups of profiling die seats 6 are easy to disassemble and assemble, which makes it easy to clean and maintain the profiling die seats 6, and on the other hand, makes it easy to replace the model of the profiling die seats 6. In the subsequent processing process, it is easy to set more models of profiling die seats 6 for profiling of aluminum plates, ensuring that the profiling die seats 6 are easy to disassemble, replace, and adjust the profiling shape, thereby meeting various production needs.

[0033] The device realizes convenient installation and positioning of the pressing die 6 through the design of the mounting seat 501 and the embedding platform 601. During installation, the mounting seat 501 and the embedding platform 601 can be snapped into place.

[0034] The locking unit 8 comprises: The movable arm 801 is disposed inside the bearing seat 5; The limit block 802 is arranged on the movable arm 801 and is slidably connected to the bearing seat 5; The locking rod 803 is arranged on the limit block 802, and a locking hole 603 is opened on the embedding platform 601, and the locking rod 803 is movably inserted into the locking hole 603; The double-threaded screw 804 is rotatably connected to the bearing seat 5 and is threadedly connected to the movable arm 801 .

[0035] The locking unit 8 of the device has a simple structure and is easy to operate. When the molding die base 6 needs to be installed, the mounting base 501 and the embedding platform 601 are clamped, and then the double-threaded screw 804 is rotated to make the double-threaded screw 804 drive the movable arm 801 to move along the inside of the supporting base 5, and the movable arm 801 drives the limit block 802 to move, and the limit block 802 drives the locking rod 803 to move, and finally the locking rod 803 is inserted into the locking hole 603, so that the molding die base 6 can be quickly installed. When the molding die base 6 needs to be disassembled and replaced, the disassembly process is the opposite of the above-mentioned installation process, and the operation is convenient.

[0036] The double-threaded screw rod 804 is provided with a rotating handle 8041. The device makes the double-threaded screw rod 804 labor-saving and convenient to rotate through the design of the rotating handle 8041.

[0037] A sliding groove 502 corresponding to the position of the limit block 802 is provided on the supporting seat 5, and a positioning groove 602 corresponding to the position of the limit block 802 and the locking rod 803 is provided on the embedding platform 601. The device limits the limit block 802 through the design of the sliding groove 502, so that the force on the limit block 802 is stable. The device is designed through the positioning groove 602, so that when the embedding platform 601 and the mounting seat 501 are clamped, the limit block 802 and the locking rod 803 are synchronously clamped in the positioning groove 602, thereby facilitating subsequent locking operations.

[0038] A guide rail rod 8011 is fixedly connected inside the bearing seat 5, and the guide rail rod 8011 is used to provide support for the movable arm 801. The device makes the force on the movable arm 801 stable through the design of the guide rail rod 8011.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A continuous profiling equipment for aluminum plates, characterized in that: include: An equipment base (1) having a conveying platform (101) for conveying aluminum plates disposed thereon; A supporting and fixing frame (2) is arranged on the equipment base (1); An electric push rod (3) is arranged on the supporting fixing frame (2); A lifting control platform (4) is arranged at the output end of the electric push rod (3) and is slidably connected to the supporting fixing frame (2); A bearing seat (5) is arranged below the lifting control platform (4), and a multi-station structure is provided on the bearing seat (5); A plurality of pressing die seats (6) are arranged on any group of station structures of the bearing seat (5); A switching unit (7) is arranged between the lifting control platform (4) and the bearing seat (5) and is used to switch the workstations of the plurality of groups of pressing die seats (6); A locking unit (8) is arranged inside the bearing seat (5), and the locking unit (8) is used to quickly lock and limit the position of a plurality of pressing die seats (6).

2. The continuous pressing equipment for aluminum plates according to claim 1, characterized in that: Limiting shafts (503) are provided on both sides of the bearing seat (5), a side support seat (401) is provided on the lifting control platform (4), and an axle seat bracket (402) for supporting the limiting shaft (503) is provided on the side support seat (401).

3. The continuous pressing equipment for aluminum plates according to claim 2, characterized in that: The switching unit (7) comprises: A first worm gear (71) is arranged on the limiting shaft (503); A first worm (72) is disposed on the shaft seat bracket (402) and meshes with the first worm wheel (71); A driving unit (73) is arranged on the side support (401) and is used to drive the first worm (72) to rotate.

4. The continuous pressing equipment for aluminum sheet according to claim 3, characterized in that: The driving unit (73) comprises: A driving motor (731) is arranged on the side support (401); A transmission rod (732) is arranged at the output end of the driving motor (731); A second worm gear (733) is arranged on the transmission rod (732); A guide shaft (735) is arranged on the shaft body of the first worm gear (72); The second worm wheel (734) is disposed on the guide shaft (735) and meshes with the second worm gear (733).

5. The continuous pressing equipment for aluminum plates according to claim 4, characterized in that: A reinforcement seat (403) is provided on the side support seat (401), and the reinforcement seat (403) is used to provide support and limit for the first worm (72) and the guide shaft (735).

6. The continuous pressing equipment for aluminum plates according to claim 1, characterized in that: The bearing seat (5) is provided with a mounting seat (501), and the pressing die seat (6) is provided with an embedding platform (601), and the embedding platform (601) is movably clamped in the mounting seat (501).

7. The continuous pressing equipment for aluminum plates according to claim 6, characterized in that: The locking unit (8) comprises: A movable arm (801) is arranged inside the bearing seat (5); A limit block (802) is arranged on the movable arm (801) and is slidably connected to the bearing seat (5); A locking rod (803) is arranged on the limiting block (802); a locking hole (603) is provided on the embedding platform (601); and the locking rod (803) is movably inserted into the locking hole (603); A double-threaded screw rod (804) is rotatably connected to the bearing seat (5) and is threadably connected to the movable arm (801).

8. The aluminum sheet continuous profiling equipment according to claim 7, characterized in that: The double-threaded screw rod (804) is provided with a rotating handle (8041).

9. The continuous profiling equipment for aluminum plates according to claim 7, characterized in that: The bearing seat (5) is provided with a sliding groove (502) corresponding to the position of the limit block (802), and the embedding platform (601) is provided with a positioning groove (602) corresponding to the positions of the limit block (802) and the locking rod (803).

10. The aluminum sheet continuous profiling equipment according to claim 9, characterized in that: A guide rail rod (8011) is fixedly connected to the interior of the bearing seat (5), and the guide rail rod (8011) is used to provide support for the movable arm (801).

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