Replacement structure of winding drum for cotton carding spinning processing

Abstract

The invention discloses a replacement structure of a winding drum for cotton carding and spinning processing, and relates to the technical field of cotton carding and spinning processing. The adjusting assembly is arranged on the outer surface of the supporting base; the driving assembly is arranged on the upper surface of the supporting base and used for driving; the roller replacing unit is arranged on the upper surface of the supporting base and used for replacing a roller, and the roller replacing unit comprises a lifting assembly arranged on the upper surface of the supporting base, a supporting assembly, a cleaning assembly and a limiting assembly, wherein the supporting assembly, the cleaning assembly and the limiting assembly are arranged on the outer surface of the lifting assembly. Through mutual cooperation of the supporting assembly and the limiting assembly, when the winding drum is replaced, the winding drum is supported, then the flexibility of the replacement structure is conveniently improved, through mutual cooperation of a fixing plate, a limiting groove body, a moving block, a limiting bolt, a mounting clamping base and a cleaning roller, the outer surface of the winding drum can be conveniently cleaned, and the practicability is high. And the outer surface of the winding drum can be cleaned in time in the replacement process of the winding drum.

Description

Technical Field

[0001] The invention relates to the technical field of carding and spinning processing, and in particular to a drum replacement structure for carding and spinning processing. Background Art

[0002] Carding machine is used to process cotton fiber and chemical fiber, and belongs to textile machinery. According to the spinning process, carding is an important process. The previous process of carding machine is the opening and cleaning combined machine, and the subsequent process is the drawing machine or the strip lap machine. The working principle of the carding machine is to open, comb and remove impurities from the cotton rolls sent from the previous process or the oily cotton layer supplied by the cotton box, so that all the curled cotton loops become basically straight single fibers.

[0003] In the prior art, a patent document with the announcement number CN218371013U proposes a replacement structure for a reel for carding and spinning, which relates to the technical field of carding and spinning, and includes a carding and spinning device, wherein a first connecting plate is fixedly installed on the upper end of the carding and spinning device, a driving element is fixedly installed on the left end of the first connecting plate, a reel element is arranged on the inner side of the first connecting plate, and a second connecting plate is arranged on the upper end of the carding and spinning device, and a connecting element is fixedly installed on the left end of the second connecting plate. The utility model facilitates the rotation of the reel element through the arrangement of the first connecting plate and the driving element, so that the spinning can be wound, and according to the arrangement of the limiting element, the telescopic element, the limiting block, the second spring element, the connecting block and the pull rod, the reel element can be conveniently installed and operated during use, and the connecting block can be pulled by the arrangement of the pull rod when replacing and disassembling.

[0004] The existing technology has the following problems:

[0005] 1. The existing replacement structure of the reel for carding and spinning processing is not convenient for disassembling the reel during use, making the replacement of the reel more complicated;

[0006] 2. The existing replacement structure of the reel for carding and spinning cannot clean the outer surface of the reel during the replacement process, which reduces the functionality of the replacement structure. Summary of the invention

[0007] The present invention provides a replacement structure for a reel used for carding and spinning to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A reel replacement structure for carding and spinning processing includes a support base; an adjustment assembly arranged on the outer surface of the support base; a driving assembly arranged on the upper surface of the support base for driving; and a roller replacement unit arranged on the upper surface of the support base for replacing the reel, wherein the roller replacement unit includes a lifting assembly arranged on the upper surface of the support base and a supporting assembly, a cleaning assembly and a limiting assembly arranged on the outer surface of the lifting assembly.

[0010] A further improvement of the technical solution of the present invention is that: the adjusting component includes a hydraulic cylinder 1, one side of the hydraulic cylinder 1 is detachably connected to the outer surface of the supporting base, the telescopic end of the hydraulic cylinder 1 is detachably connected to a moving platform, the inner wall of the moving platform is slidably connected to a limiting slide bar detachably connected to the inner wall of the hydraulic cylinder 1, one end of the moving platform is fixedly connected to a limiting spring fixedly connected to the outer surface of the hydraulic cylinder 1, and the mutual cooperation of the hydraulic cylinder 1, the limiting slide bar, the moving platform and the limiting spring can drive the mounting bracket 2 to move in the horizontal direction, thereby facilitating the disassembly of the reel.

[0011] A further improvement of the technical solution of the present invention is that the driving assembly includes a mounting bracket 1, the bottom surface of the mounting bracket 1 is fixedly connected to the upper surface of the supporting base, one side of the mounting bracket 1 is detachably connected to a driving motor, and the driving end of the driving motor is fixedly connected to a mounting plate 1.

[0012] A further improvement of the technical solution of the present invention is that: a mounting bracket 2 is fixedly connected to the upper surface of the movable platform, a mounting disk 2 is rotatably connected to the outer surface of the mounting bracket 2, a reel is detachably connected to the inner walls of the mounting disk 2 and the mounting disk 1, and the reel can be conveniently disassembled and driven by the mutual cooperation of the mounting bracket 1, the driving motor, the mounting disk 1, the mounting bracket 2 and the mounting disk 2.

[0013] A further improvement of the technical solution of the present invention is that: the lifting assembly includes a second hydraulic cylinder, the bottom surface of the second hydraulic cylinder is detachably connected to the upper surface of the support base, the telescopic end of the second hydraulic cylinder is detachably connected to a lifting plate, and the bottom surface of the lifting plate is detachably connected to a telescopic limit rod detachably connected to the upper surface of the support base. The cooperation between the second hydraulic cylinder, the telescopic limit rod and the lifting plate can conveniently adjust the height of the lifting plate, thereby facilitating the disassembly of the reel.

[0014] A further improvement of the technical solution of the present invention is that: the support assembly includes a mounting groove body, the outer surface of the mounting groove body is slidably connected to the inner wall of the lifting plate, the outer surface of the mounting groove body is fixedly connected to a fixing rod, the inner wall of the mounting groove body is rotatably connected to a support plate, the outer surface of the support plate is fixedly connected to an elastic clip that is movably engaged with the outer surface of the fixing rod, the upper surface of the support plate is detachably connected to a roller support frame, and one side of the support plate is fixedly connected to a spring that is fixedly connected to the inner wall of the mounting groove body, and the elastic action of the spring is utilized to make the support plate flip over under the limit of the mounting groove body, and during the flipping process, due to inertia, the elastic clip will be engaged with the inside of the fixing rod, thereby assisting in limiting the support plate, and finally the roller support frame is utilized to assist in supporting both ends of the reel.

[0015] A further improvement of the technical solution of the present invention is that the cleaning component includes a fixed plate, one side of the fixed plate is fixedly connected to the outer surface of the lifting plate, the upper surface of the fixed plate is fixedly connected to a limiting groove body, the inner wall of the limiting groove body is slidably connected to a moving block, the outer surface of the moving block is detachably connected to a limiting bolt threadedly connected to the inner wall of the limiting groove body, the upper surface of the moving block is fixedly connected to a mounting base, the inner wall of the mounting base is rotatably connected to a cleaning roller, one side of the cleaning roller is fixedly connected to a driving device detachably connected to the outer surface of the mounting base, the fixed plate, the limiting groove body, the moving block, the limiting bolt, the mounting base and the cleaning roller are mutually coordinated to facilitate the cleaning of the outer surface of the reel, so that the outer surface of the reel can be cleaned in time during the replacement process.

[0016] A further improvement of the technical solution of the present invention is that the limiting assembly includes a hydraulic cylinder three, and one side of the hydraulic cylinder three is detachably connected to the inner wall of the lifting plate.

[0017] A further improvement of the technical solution of the present invention is that: one side of the mounting groove body is detachably connected to an electromagnet, the inner wall of the mounting groove body is detachably connected to a limiting rod, the outer surface of the limiting rod is slidably connected to an electromagnet, the inner wall of the electromagnet is fixedly connected to a clamping column that is movably clamped to the outer surface of the support plate, one side of the clamping column is fixedly connected to a permanent magnet, and the outer surface of the electromagnet is fixedly connected to an arc-shaped spring piece that is fixedly connected to the inner wall of the mounting groove body. The support plate can be conveniently limited by the mutual cooperation of hydraulic cylinder three, electromagnet, clamping column, permanent magnet, arc-shaped spring piece and limiting rod.

[0018] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0019] 1. The present invention provides a replacement structure for a reel for carding and spinning, which uses a hydraulic cylinder 1, a limit slide bar, a moving platform and a limit spring to cooperate with each other to drive the installation bracket 2 to move in the horizontal direction, thereby facilitating the disassembly of the reel. In the process of using the replacement structure for the carding and spinning reel, the reel needs to be disassembled. During the disassembly process, the drum is first supported, and then the hydraulic cylinder 1 is started. The telescopic end of the hydraulic cylinder 1 drives the moving platform to move under the limit of the limit slide bar, and then cooperates with the limit spring to drive the installation bracket 2 to move in the horizontal direction, thereby facilitating the disassembly of the reel.

[0020] 2. The present invention provides a reel replacement structure for combing and spinning, which can facilitate the disassembly and driving of the reel by using the mutual cooperation of the mounting bracket 1, the driving motor, the mounting plate 1, the mounting bracket 2 and the mounting plate 2, thereby increasing the functionality of the reel replacement structure. During the use of the reel, the two ends of the drum can be respectively installed inside the mounting plate 1 and the mounting plate 2, and the driving motor can be used to drive the reel to rotate, thereby winding the combed cotton.

[0021] 3. The present invention provides a replacement structure for a reel for carding and spinning, which uses a hydraulic cylinder 2, a telescopic limit rod and a lifting plate to cooperate with each other to conveniently adjust the height of the lifting plate, thereby facilitating the disassembly of the reel. When the reel needs to be disassembled, the hydraulic cylinder 2 is started to drive the lifting plate to rise and fall under the limit of the telescopic limit rod, thereby facilitating the support force for disassembly of the reel.

[0022] 4. The present invention provides a replacement structure for a reel for carding and spinning, which adopts the mutual cooperation of a support component and a limit component to support the reel when replacing it, thereby facilitating the flexibility of the replacement structure. When the reel is replaced, the electromagnet is started to make it magnetic, adsorb the permanent magnet, and move the clamping column under the limit of the arc spring piece, the electromagnet and the limit rod, so that the clamping column is separated from the roller support frame. At this time, due to the elastic effect of the spring, the support plate is turned over under the limit of the installation groove body. During the turning process, due to inertia, the elastic clamp will be clamped inside the fixed rod, thereby assisting in limiting the support plate, and finally the roller support frame is used to assist in supporting the two ends of the reel.

[0023] 5. The present invention provides a replacement structure for a reel used in carding and spinning processing. The fixed plate, the limiting groove, the moving block, the limiting bolt, the mounting bracket and the cleaning roller cooperate with each other to facilitate the cleaning of the outer surface of the reel, so that the outer surface of the reel can be cleaned in time during the replacement process. During the replacement of the reel, the spacing between the cleaning rollers can be adjusted according to the size of the reel. During the adjustment, the limiting bolt is disassembled so that the moving block can slide freely inside the limiting groove, thereby assisting in adjusting the spacing between the cleaning rollers. After the adjustment is completed, the driving device on one side of the cleaning roller is started to drive the cleaning roller to rotate, thereby cleaning the outer surface of the reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a front structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the regulating component of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the roller replacement unit of the present invention;

[0028] Figure 5 It is a schematic diagram of the support assembly structure of the present invention;

[0029] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0030] Figure 7 It is a schematic diagram of the structure of the limiting component of the present invention.

[0031] In the figure: 1. Support base; 2. Adjustment assembly; 21. Hydraulic cylinder 1; 22. Limiting slide bar; 23. Moving platform; 24. Limiting spring; 3. Driving assembly; 31. Mounting bracket 1; 32. Driving motor; 33. Mounting plate 1; 34. Mounting bracket 2; 35. Mounting plate 2; 4. Roller replacement unit; 41. Hydraulic cylinder 2; 42. Telescopic limiting rod; 43. Lifting plate; 44. Support assembly; 441. Mounting trough; 442. Fixed Rod; 443, elastic clamp; 444, support plate; 445, roller support frame; 446, spring; 45, cleaning assembly; 451, fixing plate; 452, limiting groove; 453, moving block; 454, limiting bolt; 455, mounting base; 456, cleaning roller; 46, limiting assembly; 461, hydraulic cylinder three; 462, electromagnet; 463, clamping column; 464, permanent magnet; 465, arc-shaped spring piece; 466, limiting rod. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with embodiments:

[0033] Example 1

[0034] like Figure 1-7 As shown, the present invention provides a structure for replacing a reel for carding and spinning processing, comprising a supporting base 1; an adjusting assembly 2 arranged on the outer surface of the supporting base 1; a driving assembly 3 arranged on the upper surface of the supporting base 1 for driving; and a roller replacement unit 4 arranged on the upper surface of the supporting base 1 for replacing the reel, the roller replacement unit 4 comprising a lifting assembly arranged on the upper surface of the supporting base 1 and a supporting assembly 44, a cleaning assembly 45 and a limiting assembly 46 arranged on the outer surface of the lifting assembly.

[0035] Furthermore, the adjusting component 2 includes a hydraulic cylinder 21, one side of which is detachably connected to the outer surface of the supporting base 1, the telescopic end of the hydraulic cylinder 21 is detachably connected to a moving platform 23, the inner wall of the moving platform 23 is slidably connected to a limiting slide bar 22 detachably connected to the inner wall of the hydraulic cylinder 21, and one end of the moving platform 23 is fixedly connected to a limiting spring 24 fixedly connected to the outer surface of the hydraulic cylinder 21. During the use of the reel replacement structure for carding and spinning processing, the reel needs to be disassembled. During the disassembly process, the drum is first supported, and then the hydraulic cylinder 21 is started. The telescopic end of the hydraulic cylinder 21 drives the moving platform 23 to move under the limit of the limiting slide bar 22, and then cooperates with the limiting spring 24 to drive the installation The horizontal movement of the mounting bracket 34 facilitates the disassembly of the reel. The driving assembly 3 includes a mounting bracket 31. The bottom surface of the mounting bracket 31 is fixedly connected to the upper surface of the supporting base 1. One side of the mounting bracket 31 is detachably connected to a driving motor 32. The driving end of the driving motor 32 is fixedly connected to a mounting disk 33. The upper surface of the movable platform 23 is fixedly connected to a mounting bracket 34. The outer surface of the mounting bracket 34 is rotatably connected to a mounting disk 2 35. The mounting disk 2 35 and the inner wall of the mounting disk 1 33 are detachably connected to the reel. During the use of the reel, the two ends of the drum can be respectively installed inside the mounting disk 1 33 and the mounting disk 2 35. At the same time, the driving motor 32 can be used to drive the reel to rotate, thereby winding the cotton.

[0036] Example 2

[0037] like Figure 1-7As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the lifting assembly includes a hydraulic cylinder 2 41, the bottom surface of the hydraulic cylinder 2 41 is detachably connected to the upper surface of the support base 1, the telescopic end of the hydraulic cylinder 2 41 is detachably connected to a lifting plate 43, the bottom surface of the lifting plate 43 is detachably connected to a telescopic limiting rod 42 detachably connected to the upper surface of the support base 1, when the reel needs to be disassembled, by starting the hydraulic cylinder 2 41, the lifting plate 43 is driven to rise and fall under the limit of the telescopic limiting rod 42, thereby facilitating the provision of supporting force for the disassembly of the reel, and the support assembly 44 includes There is a mounting groove 441, the outer surface of the mounting groove 441 is slidably connected to the inner wall of the lifting plate 43, the outer surface of the mounting groove 441 is fixedly connected to a fixing rod 442, the inner wall of the mounting groove 441 is rotatably connected to a support plate 444, the outer surface of the support plate 444 is fixedly connected to an elastic clamp 443 movably connected to the outer surface of the fixing rod 442, the upper surface of the support plate 444 is detachably connected to a roller support frame 445, one side of the support plate 444 is fixedly connected to a spring 446 fixedly connected to the inner wall of the mounting groove 441, and the limiting component 46 includes a hydraulic cylinder 461, a hydraulic cylinder 46 One side of the mounting groove 441 is detachably connected to the inner wall of the lifting plate 43, one side of the mounting groove 441 is detachably connected to the electromagnet 462, the inner wall of the mounting groove 441 is detachably connected to the limit rod 466, the outer surface of the limit rod 466 is slidably connected to the electromagnet 462, the inner wall of the electromagnet 462 is fixedly connected to a clamping column 463 that is movably clamped to the outer surface of the support plate 444, one side of the clamping column 463 is fixedly connected to a permanent magnet 464, the outer surface of the electromagnet 462 is fixedly connected to an arc-shaped spring piece 465 that is fixedly connected to the inner wall of the mounting groove 441, and when the reel is replaced, the electric The magnet 462 makes the electromagnet 462 magnetic and attracts the permanent magnet 464, so that the clamping column 463 moves under the limit of the arc spring piece 465, the electromagnet 462 and the limit rod 466, thereby separating the clamping column 463 from the roller support frame 445. At this time, due to the elastic effect of the spring 446, the support plate 444 flips over under the limit of the installation groove body 441. During the flipping process, due to inertia, the elastic clamp 443 will be clamped inside the fixing rod 442, thereby assisting in limiting the support plate 444, and finally the roller support frame 445 is used to assist in supporting the two ends of the roll.

[0038] Example 3

[0039] like Figure 1-7As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the cleaning component 45 includes a fixed plate 451, one side of the fixed plate 451 is fixedly connected to the outer surface of the lifting plate 43, the upper surface of the fixed plate 451 is fixedly connected to the limiting groove body 452, the inner wall of the limiting groove body 452 is slidably connected to the moving block 453, the outer surface of the moving block 453 is detachably connected to the limiting bolt 454 threadedly connected to the inner wall of the limiting groove body 452, the upper surface of the moving block 453 is fixedly connected to the mounting base 455, and the inner wall of the mounting base 455 is rotatable. A cleaning roller 456 is dynamically connected to the cleaning roller 456, and a driving device detachably connected to the outer surface of the mounting base 455 is fixedly connected to one side of the cleaning roller 456. During the roll replacement process, the spacing between the cleaning rollers 456 can be adjusted according to the size of the roll. When adjusting, the limit bolt 454 is removed to allow the moving block 453 to slide freely inside the limit groove 452, thereby assisting in adjusting the spacing between the cleaning rollers 456. After the adjustment is completed, the driving device on one side of the cleaning roller 456 is started to drive the cleaning roller 456 to rotate, thereby cleaning the outer surface of the roll.

[0040] The working principle of the replacement structure of the reel for carding and spinning processing will be specifically described below.

[0041] like Figure 1-7 As shown, during the process of using the replacement structure of the reel for carding and spinning processing, the reel needs to be disassembled. During the disassembly process, the drum is first supported, and the electromagnet 462 is started so that the electromagnet 462 is magnetic and adsorbs the permanent magnet 464, so that the clamping column 463 moves under the limit of the arc-shaped spring piece 465, the electromagnet 462 and the limit rod 466, so that the clamping column 463 is separated from the drum support frame 445. At this time, due to the elastic effect of the spring 446, the support plate 444 is flipped under the limit of the installation groove body 441. During the flipping process, due to inertia, the elastic clamp 443 will be clamped in the inside of the fixing rod 442, so that Assist in limiting the support plate 444, and finally use the roller support frame 445 to assist in supporting the two ends of the reel, and then start the hydraulic cylinder 21 to drive the lifting plate 43 to rise and fall under the limit of the telescopic limit rod 42, so as to provide support force for the disassembly of the reel, and then start the hydraulic cylinder 1 21, and the telescopic end of the hydraulic cylinder 1 21 drives the moving platform 23 to move under the limit of the limit slide bar 22, and then cooperates with the limit spring 24 to drive the installation bracket 2 34 to move in the horizontal direction, so as to facilitate the disassembly of the reel. After the reel is disassembled, start the driving device on one side of the cleaning roller 456 to drive the cleaning roller 456 to rotate, so as to clean the outer surface of the reel.

[0042] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A reel replacement structure for carding and spinning, comprising a support base (1); An adjustment component (2) arranged on the outer surface of the support base (1); A driving assembly (3) disposed on the upper surface of the support base (1) for driving; And a roller replacement unit (4) arranged on the upper surface of the support base (1) for replacing the roll, characterized in that: the roller replacement unit (4) includes a lifting component arranged on the upper surface of the support base (1) and a supporting component (44), a cleaning component (45) and a limiting component (46) arranged on the outer surface of the lifting component.

2. A replacement structure for a reel for carding and spinning according to claim 1, characterized in that: The adjustment assembly (2) comprises a hydraulic cylinder (21), one side of which is detachably connected to the outer surface of the support base (1), the telescopic end of the hydraulic cylinder (21) is detachably connected to a moving platform (23), the inner wall of the moving platform (23) is slidably connected to a limiting slide bar (22) detachably connected to the inner wall of the hydraulic cylinder (21), and one end of the moving platform (23) is fixedly connected to a limiting spring (24) fixedly connected to the outer surface of the hydraulic cylinder (21).

3. The replacement structure of the reel for carding and spinning according to claim 1 is characterized in that: The driving assembly (3) comprises a mounting bracket (31), the bottom surface of which is fixedly connected to the upper surface of the supporting base (1), one side of which is detachably connected to a driving motor (32), and the driving end of which is fixedly connected to a mounting plate (33).

4. A replacement structure for a reel for carding and spinning according to claim 2, characterized in that: The upper surface of the movable platform (23) is fixedly connected with a second mounting bracket (34), the outer surface of the second mounting bracket (34) is rotatably connected with a second mounting plate (35), and the inner walls of the second mounting plate (35) and the first mounting plate (33) are detachably connected with a reel.

5. The replacement structure of the reel for carding and spinning according to claim 1, characterized in that: The lifting assembly comprises a second hydraulic cylinder (41), the bottom surface of the second hydraulic cylinder (41) being detachably connected to the upper surface of the support base (1), the telescopic end of the second hydraulic cylinder (41) being detachably connected to a lifting plate (43), and the bottom surface of the lifting plate (43) being detachably connected to a telescopic limiting rod (42) detachably connected to the upper surface of the support base (1).

6. The replacement structure of the reel for carding and spinning according to claim 1, characterized in that: The support assembly (44) comprises a mounting groove (441), the outer surface of the mounting groove (441) is slidably connected to the inner wall of the lifting plate (43), the outer surface of the mounting groove (441) is fixedly connected to a fixing rod (442), the inner wall of the mounting groove (441) is rotatably connected to a support plate (444), the outer surface of the support plate (444) is fixedly connected to an elastic clip (443) movably engaged with the outer surface of the fixing rod (442), the upper surface of the support plate (444) is detachably connected to a roller support frame (445), and one side of the support plate (444) is fixedly connected to a spring (446) fixedly connected to the inner wall of the mounting groove (441).

7. The replacement structure of the reel for carding and spinning according to claim 1 is characterized in that: The cleaning assembly (45) comprises a fixed plate (451), one side of the fixed plate (451) is fixedly connected to the outer surface of the lifting plate (43), the upper surface of the fixed plate (451) is fixedly connected to a limiting groove body (452), the inner wall of the limiting groove body (452) is slidably connected to a moving block (453), the outer surface of the moving block (453) is detachably connected to a limiting bolt (454) threadedly connected to the inner wall of the limiting groove body (452), the upper surface of the moving block (453) is fixedly connected to a mounting base (455), the inner wall of the mounting base (455) is rotatably connected to a cleaning roller (456), and one side of the cleaning roller (456) is fixedly connected to a driving device detachably connected to the outer surface of the mounting base (455).

8. The replacement structure of the reel for carding and spinning according to claim 1 is characterized in that: The limiting assembly (46) comprises a hydraulic cylinder three (461), one side of which is detachably connected to the inner wall of the lifting plate (43).

9. A reel replacement structure for carding and spinning according to claim 6, characterized in that: An electromagnet (462) is detachably connected to one side of the installation slot (441), a limit rod (466) is detachably connected to the inner wall of the installation slot (441), the outer surface of the limit rod (466) is slidably connected to the electromagnet (462), the inner wall of the electromagnet (462) is fixedly connected to a clamping column (463) that is movably clamped to the outer surface of the support plate (444), one side of the clamping column (463) is fixedly connected to a permanent magnet (464), and the outer surface of the electromagnet (462) is fixedly connected to an arc-shaped spring piece (465) that is fixedly connected to the inner wall of the installation slot (441).

Images