High-precision air suction foam horizontal cutting machine

Abstract

The utility model discloses a high-precision air suction foamed plastic horizontal cutting machine, which relates to the related field of horizontal cutting machines, and comprises a working table, a first transmission part, a mounting frame, a control box, a second transmission part, a cutter, an air cylinder, a detection mechanism, a sliding plate and a cleaning mechanism, the first transmission part penetrates through the mounting frame and is in sliding connection with the interior of the mounting frame, a control box is fixedly connected to the front end of the mounting frame, a detection mechanism is arranged, the distance between foamed plastic or similar light porous materials and a cutter is obtained through a laser range finder, and the working time of the first transmission part and the working time of the second transmission part are controlled through the control box; and a cleaning mechanism is arranged, two sets of spray heads are driven to move through two sets of fixing rods, then external gas and external lubricating oil are blown to the surface of the cutter through the two sets of spray heads for cleaning and lubricating, the surface of the cutter becomes smooth, and the later cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of flat cutting machines, and particularly to a high-precision air-suction foam flat cutting machine. Background Technique

[0002] An air-suction foam flat cutting machine is an industrial machine specifically used for cutting foam plastics or similar lightweight porous materials. This machine usually firmly adsorbs the material on the workbench during the cutting process to ensure that the material does not shift or deform during high-speed movement or precise cutting.

[0003] Before cutting, it is difficult for the existing air-suction foam flat cutting machine to detect the distance between the foam plastic or similar lightweight porous material and the cutting piece, which may lead to poor accuracy and stability during the cutting process and reduce work efficiency; it is difficult for the existing technology to blow dust and lubricate the cutting piece, and the high temperature and friction generated during the cutting process will cause oxides and metal powders to form on the surface of the cutting piece. If not removed in time, a layer of rust will form on the surface of the cutting piece, resulting in an uneven surface of the cutting piece and affecting the cutting quality. Content of the Utility Model

[0004] Therefore, to solve the above deficiencies, the present utility model provides a high-precision air-suction foam flat cutting machine here.

[0005] The present utility model is implemented as follows. A high-precision air-suction foam flat cutting machine is constructed. The device includes a workbench. A first transmission member is fixedly connected to the right side of the front end of the workbench. The first transmission member penetrates through and is slidably connected to the inside of the mounting frame. A control box is fixedly connected to the front end of the mounting frame. A second transmission member is rotatably connected to the rear side inside the mounting frame. A cutting knife is fixedly connected to the front end of the second transmission member. A cylinder is fixedly connected to the right rear end of the mounting frame. A detection mechanism is fixedly connected to the push rod at the front end of the cylinder. A sliding plate is fixedly connected to the left end of the detection mechanism, and the left end of the sliding plate is slidably connected to the right end of the mounting frame. A cleaning mechanism is fixedly connected to the top of the mounting frame.

[0006] The detection mechanism includes a first mounting plate, and the right front end of the sliding plate is fixedly connected to the first mounting plate; a biaxial motor, and the left end of the back of the first mounting plate is fixedly connected to the biaxial motor; a connecting rod, and output shafts at both the front and rear ends of the biaxial motor are fixedly connected to the connecting rod, and the connecting rod is arranged in a segmented manner, specifically composed of two sets of rod bodies sleeved front and back; an electromagnetic clutch, and the front and rear rod bodies of the connecting rod are respectively inserted and fixed in the front and rear slots of the electromagnetic clutch; a gear and rack member, and the back of the connecting rod on the back of the biaxial motor is fixedly connected to the gear and rack member; a second mounting plate, and the right rear end of the sliding plate is fixedly connected to the second mounting plate; a control switch, and the right lower front end of the second mounting plate is fixedly connected to the control switch; a turntable, and the front end of the connecting rod at the front end of the biaxial motor is fixedly connected to the turntable; a first convex rod, and the front end of the turntable is eccentrically provided with the first convex rod; a first chute plate, and the outer wall of the first convex rod is slidably connected to the inner chute of the first chute plate; a second convex rod, and the right side of the first chute plate is slidably connected to the outer wall of the second convex rod; a moving plate, and the back of the second convex rod is fixedly connected to the moving plate.

[0007] Preferably, the detection mechanism further includes a limiting plate, and the outer wall of the moving plate is slidably connected to the inner side of the limiting plate; a laser rangefinder, and the right end of the moving plate is fixedly connected to the laser rangefinder, and the laser rangefinder is electrically connected to an external display screen.

[0008] Preferably, the cleaning mechanism includes a mounting shell, and the mounting shell is fixedly connected to the top of the mounting frame; a motor, and the left end of the mounting shell is fixedly connected to the motor; a rotating rod, and the output shaft at the right end of the motor is fixedly connected to the rotating rod; a third convex rod, and the front and rear sides at the right end of the rotating rod are fixedly connected to the third convex rod; a second chute plate, and the outer wall of the third convex rod is intermittently matched with the inner chute of the second chute plate; a sliding rod, and the left rear end of the second chute plate is rotatably connected to the sliding rod.

[0009] Preferably, the cleaning mechanism further includes a fixing rod, and two fixing rods are fixedly connected to the front end of the bottom of the sliding rod; a nozzle, and the nozzle is fixedly connected to the bottom of the fixing rod.

[0010] Preferably, the first transmission member is composed of a connecting plate fixedly connected to the right front side of the workbench, a motor fixedly connected to the right end of the connecting plate, a screw rod fixedly connected to the left end output shaft of the motor, and a limiting rod fixedly connected to the lower left end of the connecting plate. The screw rod in the first transmission member penetrates through the mounting frame and is threadedly connected to its interior, and the limiting rod in the first transmission member penetrates through the mounting frame and is slidably connected to its interior.

[0011] Preferably, the second transmission member is composed of a screw rod rotatably connected to the rear side inside the mounting frame, a moving block threadedly connected to the outer wall of the screw rod, and a motor fixedly connected to the top of the screw rod, and the moving block is fixedly connected to the cutting knife.

[0012] Preferably, the internal gear of the gear and tooth plate part is rotatably connected to the front end of the second mounting plate, and the internal tooth plate of the gear and tooth plate part is slidably connected to the front end of the second mounting plate.

[0013] Preferably, a limiting plate is fixedly connected to the right side of the front end of the first mounting plate, a turntable is rotatably connected to the left side of the front end of the first mounting plate, and the left side of the back of the first chute plate is rotatably connected to the front end of the first mounting plate.

[0014] The utility model has the following advantages: The utility model provides a high-precision air-suction foam flat cutting machine through improvement. Compared with the same type of equipment, the following improvements are made:

[0015] For the high-precision air-suction foam flat cutting machine of the utility model, a detection mechanism is provided. The distance between the foam plastic or similar light porous material and the cutting knife is obtained through a laser rangefinder, and the working time of the first transmission part and the second transmission part is controlled through a control box, so as to improve the accuracy, stability and working efficiency of the cutting process.

[0016] For the high-precision air-suction foam flat cutting machine of the utility model, a cleaning mechanism is provided. Two groups of fixing rods drive two groups of nozzles to move, and then the two groups of nozzles blow external gas and external lubricating oil on the surface of the cutting knife respectively for cleaning and lubricating, so that the surface of the cutting knife becomes smooth and the later cutting quality is improved. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the workbench of the utility model;

[0018] Figure 2 is a three-dimensional exploded structural schematic diagram of the detection mechanism of the utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the cleaning mechanism of the utility model;

[0020] Figure 4 is the utility model Figure 3 is an enlarged structural schematic diagram of part A in

[0021] Wherein: workbench - 1, first transmission member - 2, mounting bracket - 3, control box - 4, second transmission member - 5, cutting tool - 6, air cylinder - 7, detection mechanism - 8, first mounting plate - 81, dual - shaft motor - 82, connecting rod - 83, electromagnetic clutch - 84, gear - rack member - 85, second mounting plate - 86, control switch - 87, turntable - 88, first convex rod - 89, first chute plate - 810, second convex rod - 811, moving plate - 812, limiting plate - 813, laser rangefinder - 814, sliding plate - 9, cleaning mechanism - 10, mounting shell - 101, motor - 102, rotating rod - 103, third convex rod - 104, second chute plate - 105, sliding rod - 106, fixed rod - 107, nozzle - 108. Detailed implementation manners

[0022] The following combines the attached Figures 1 to 4 Describe the principles and features of the present utility model. The examples given are only used to explain the present utility model and are not used to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non - precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "arranged on" another component, it can be directly arranged on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] Embodiment 1:

[0026] Please refer to Figures 1 to 2, A high-precision air-suction foam flat cutting machine of the present utility model includes a workbench 1. A first transmission member 2 is fixedly connected to the right side of the front end of the workbench 1. The first transmission member 2 penetrates through and is slidably connected to the inside of the mounting frame 3. A control box 4 is fixedly connected to the front end of the mounting frame 3. A second transmission member 5 is rotatably connected to the rear side inside the mounting frame 3. A cutting knife 6 is fixedly connected to the front end of the second transmission member 5. A cylinder 7 is fixedly connected to the right rear end of the mounting frame 3. A detection mechanism 8 is fixedly connected to the front end push rod of the cylinder 7. A sliding plate 9 is fixedly connected to the left end of the detection mechanism 8, and the left end of the sliding plate 9 is slidably connected to the right end of the mounting frame 3. A cleaning mechanism 10 is fixedly connected to the top of the mounting frame 3. The first transmission member 2 is composed of a connecting plate fixedly connected to the right side of the front end of the workbench 1, a motor fixedly connected to the right end of the connecting plate, a screw rod fixedly connected to the left end output shaft of the motor, and a limiting rod fixedly connected to the lower left end of the connecting plate. And the screw rod inside the first transmission member 2 penetrates through and is threadedly connected to the inside of the mounting frame 3. The limiting rod inside the first transmission member 2 penetrates through and is slidably connected to the inside of the mounting frame 3. The second transmission member 5 is composed of a screw rod rotatably connected to the rear side inside the mounting frame 3, a moving block threadedly connected to the outer wall of the screw rod, and a motor fixedly connected to the top of the screw rod. And the moving block is fixedly connected to the cutting knife 6. The workbench 1 is connected to an external air-suction device;

[0027] The detection mechanism 8 includes a first mounting plate 81. A first mounting plate 81 is fixedly connected to the right front end of the sliding plate 9. A dual-axis motor 82 is fixedly connected to the left end of the back of the first mounting plate 81. The first mounting plate 81 is convenient for fixedly installing the dual-axis motor 82.

[0028] Output shafts at both the front and rear ends of the dual-axis motor 82 are fixedly connected with connecting rods 83, and the connecting rods 83 are arranged in a segmented manner, specifically composed of two sets of rod bodies sleeved front and back. The front and back rod bodies of the connecting rod 83 are respectively inserted and fixed in the front and rear slots of the electromagnetic clutch 84. The electromagnetic clutch 84 is convenient for controlling the rotation of the connecting rod 83.

[0029] A gear and rack member 85 is fixedly connected to the back of the connecting rod 83 on the back of the dual-axis motor 82. A second mounting plate 86 is fixedly connected to the right rear end of the sliding plate 9. A control switch 87 is fixedly connected to the lower right front of the front end of the second mounting plate 86. A turntable 88 is fixedly connected to the front end of the connecting rod 83 on the front end of the dual-axis motor 82. The dual-axis motor 82 is convenient for driving the turntable 88 to rotate.

[0030] A first convex rod 89 is eccentrically arranged at the front end of the turntable 88. The outer wall of the first convex rod 89 is slidably connected to the inner chute of the first chute plate 810. The right side of the first chute plate 810 is slidably connected to the outer wall of the second convex rod 811. A moving plate 812 is fixedly connected to the back of the second convex rod 811. The moving plate 812 is convenient for driving the laser rangefinder 814 to move.

[0031] The outer wall of the moving plate 812 is slidably connected to the inner side of the limiting plate 813. The right end of the moving plate 812 is fixedly connected with a laser rangefinder 814, and the laser rangefinder 814 is electrically connected to an external display screen. The laser rangefinder 814 is convenient for detecting the distance between the foam plastic or similar lightweight porous material and the cutting knife 6.

[0032] The internal gear of the gear and rack part 85 is rotatably connected to the front end of the second mounting plate 86, and the internal rack of the gear and rack part 85 is slidably connected to the front end of the second mounting plate 86. The right side of the front end of the first mounting plate 81 is fixedly connected with a limiting plate 813. The left side of the front end of the first mounting plate 81 is rotatably connected with a turntable 88. The left side of the back of the first chute plate 810 is rotatably connected to the front end of the first mounting plate 81.

[0033] The working principle of a high-precision air-suction foam flat cutting machine based on Embodiment 1 is as follows:

[0034] The worker places the foam plastic or similar lightweight porous material on the top of the workbench 1, and then firmly adsorbs the foam plastic or similar lightweight porous material on the workbench 1 through an external vacuum air-suction device. Before cutting, when it is necessary to detect the distance between the foam plastic or similar lightweight porous material and the cutting knife 6, start the double-shaft motor 82 and the electromagnetic clutch 84 at the front end of the double-shaft motor 82, so that the double-shaft motor 82 drives the connecting rod 83 at its front end to rotate. The connecting rod 83 drives the turntable 88 to rotate, and the turntable 88 drives the first convex rod 89 to make a circular motion, so that the first convex rod 89 drives the first chute plate 810 to swing downward. The first chute plate 810 drives the moving plate 812 to move downward inside the limiting plate 813 through the second convex rod 811. The moving plate 812 drives the laser rangefinder 814 to move downward. When the laser rangefinder 814 moves to the left side of the foam plastic or similar lightweight porous material, start the double-shaft motor 82 and the electromagnetic clutch 84 on the back of the double-shaft motor 82, so that the double-shaft motor 82 drives the connecting rod 83 on its back to rotate. The connecting rod 83 drives the internal gear of the gear and rack part 85 to rotate, and the internal gear of the gear and rack part 85 drives the internal rack of the gear and rack part 85 to move downward, so that the internal rack of the gear and rack part 85 squeezes the control switch 87, thereby causing the control switch 87 to drive the laser rangefinder 814 to work, so that the laser rangefinder 814 detects the distance between the foam plastic or similar lightweight porous material and the cutting knife 6, and transmits an electrical signal to the external display screen, so that the worker obtains the distance between the foam plastic or similar lightweight porous material and the cutting knife 6, and controls the working time of the first transmission part 2 and the second transmission part 5 through the control box 4, improving the accuracy, stability and working efficiency of the cutting process.

[0035] Embodiment 2:

[0036] Please refer to Figures 3 to 4, a high-precision air-suction foam flat cutting machine of the present utility model. Compared with the first embodiment, this embodiment further includes: a cleaning mechanism 10. The cleaning mechanism 10 includes a mounting shell 101. The top of the mounting frame 3 is fixedly connected with the mounting shell 101. The left end of the mounting shell 101 is fixedly connected with a motor 102. The mounting shell 101 facilitates the installation and fixation of the motor 102.

[0037] The right end output shaft of the motor 102 is fixedly connected with a rotating rod 103. Both the front and rear sides of the right end of the rotating rod 103 are fixedly connected with third convex rods 104. The motor 102 facilitates driving the rotating rod 103 to rotate.

[0038] The outer wall of the third convex rod 104 is intermittently matched with the inner chute of the second chute plate 105. The left rear end of the second chute plate 105 is rotatably connected with a sliding rod 106. The front end of the bottom of the sliding rod 106 is fixedly connected with two groups of fixing rods 107. The sliding rod 106 penetrates through the back of the mounting shell 101 and is slidably connected with its interior.

[0039] The bottom of the fixing rod 107 is fixedly connected with a nozzle 108. The fixing rod 107 penetrates through the bottom of the mounting shell 101 and is slidably connected with its interior. The nozzle 108 on the front side of the bottom of the sliding rod 106 is connected to an external gas tank, and the nozzle 108 on the rear side of the bottom of the sliding rod 106 is connected to an external lubricating oil tank.

[0040] In this embodiment:

[0041] When it is necessary to clean and lubricate the cutting knife 6, connect the nozzle 108 on the front side of the bottom of the sliding rod 106 to an external gas tank, and connect the nozzle 108 on the rear side of the bottom of the sliding rod 106 to an external lubricating oil tank. Then start the motor 102. The motor 102 drives the rotating rod 103 to rotate. The rotating rod 103 drives the two groups of third convex rods 104 to do circular motion. Through the intermittent cooperation between the two groups of third convex rods 104 and the second chute plate 105, the second chute plate 105 swings and moves forward. Then the second chute plate 105 drives the sliding rod 106 to move forward. The sliding rod 106 drives the two groups of fixing rods 107 to move forward. The two groups of fixing rods 107 drive the two groups of nozzles 108 to move forward. Thus, the external gas is blown on the surface of the cutting knife 6 through the nozzle 108 on the front side of the bottom of the sliding rod 106 for dust blowing. After the dust blowing is completed, the external lubricating oil is blown on the surface of the cutting knife 6 through the nozzle 108 on the rear side of the bottom of the sliding rod 106 for lubrication, making the surface of the cutting knife 6 smooth and improving the later cutting quality.

[0042] The utility model provides a high-precision air-suction foam flat cutter through improvement. A detection mechanism 8 is provided. The distance between the foam plastic or similar light porous material and the cutter 6 is obtained through the laser rangefinder 814, and the working time of the first transmission member 2 and the second transmission member 5 is controlled through the control box 4, so as to improve the accuracy, stability and working efficiency of the cutting process. A cleaning mechanism 10 is provided. Two groups of fixing rods 107 drive two groups of nozzles 108 to move, and then the two groups of nozzles 108 respectively blow the external gas and external lubricating oil on the surface of the cutter 6 for cleaning and lubrication, so that the surface of the cutter 6 becomes smooth and the later cutting quality is improved.

[0043] The above shows and describes the basic principles, main features and advantages of the utility model. Moreover, the standard parts used in the utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets and welding which are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-precision suction foam flat cutting machine, comprising a workbench (1), wherein a first transmission member (2) is fixedly connected to the right side of the front end of the workbench (1), the first transmission member (2) penetrates a mounting frame (3) and is slidably connected to the inside thereof, a control box (4) is fixedly connected to the front end of the mounting frame (3), a second transmission member (5) is rotatably connected to the rear side of the mounting frame (3), a cutter (6) is fixedly connected to the front end of the second transmission member (5), a cylinder (7) is fixedly connected to the right rear end of the mounting frame (3), a detection mechanism (8) is fixedly connected to the front push rod of the cylinder (7), a sliding plate (9) is fixedly connected to the left end of the detection mechanism (8), and the left end of the sliding plate (9) is slidably connected to the right end of the mounting frame (3), and a cleaning mechanism (10) is fixedly connected to the top of the mounting frame (3); Features: The detection mechanism (8) comprises: a first mounting plate (81), the right front end of the sliding plate (9) is fixedly connected to the first mounting plate (81); a double-axis motor (82), the left end of the back of the first mounting plate (81) is fixedly connected to the double-axis motor (82); a connecting rod (83), the front and rear output shafts of the double-axis motor (82) are fixedly connected to the connecting rod (83), and the connecting rod (83) is arranged in sections, specifically composed of two groups of rod bodies that are sleeved front and back; an electromagnetic clutch (84), the front and rear rod bodies of the connecting rod (83) are respectively plugged and fixed to the front and rear notches of the electromagnetic clutch (84); a gear tooth plate member (85), the back of the connecting rod (83) on the back of the double-axis motor (82) is fixedly connected to the gear tooth plate member (85); a second mounting plate (86), the The right rear end of the sliding plate (9) is fixedly connected to a second mounting plate (86); a control switch (87), the front lower right end of the second mounting plate (86) is fixedly connected to the control switch (87); a turntable (88), the front end of the connecting rod (83) of the dual-axis motor (82) is fixedly connected to the turntable (88); a first protruding rod (89), the front end of the turntable (88) is eccentrically provided with the first protruding rod (89); a first slide plate (810), the outer wall of the first protruding rod (89) is slidably connected to the inner slide of the first slide plate (810); a second protruding rod (811), the right side of the first slide plate (810) is slidably connected to the outer wall of the second protruding rod (811); a movable plate (812), the back of the second protruding rod (811) is fixedly connected to the movable plate (812).

2. According to claim 1, a high-precision suction foam flat cutting machine, characterized in that: The detection mechanism (8) further comprises: a limit plate (813), the outer wall of the movable plate (812) being slidably connected to the inner side of the limit plate (813); and a laser rangefinder (814), the right end of the movable plate (812) being fixedly connected to the laser rangefinder (814), and the laser rangefinder (814) being electrically connected to an external display screen.

3. According to claim 2, a high-precision suction foam flat cutting machine, characterized in that: The cleaning mechanism (10) comprises: a mounting shell (101), the top of the mounting frame (3) being fixedly connected to the mounting shell (101); a motor (102), the left end of the mounting shell (101) being fixedly connected to the motor (102); a rotating rod (103), the output shaft at the right end of the motor (102) being fixedly connected to the rotating rod (103); a third protruding rod (104), the front and rear sides of the right end of the rotating rod (103) being fixedly connected to the third protruding rod (104); a second slide groove plate (105), the outer wall of the third protruding rod (104) being intermittently matched with the inner slide groove of the second slide groove plate (105); and a sliding rod (106), the left rear end of the second slide groove plate (105) being rotatably connected to the sliding rod (106).

4. The high-precision suction foam flat cutting machine according to claim 3, characterized in that: The cleaning mechanism (10) further comprises: a fixed rod (107), two groups of fixed rods (107) being fixedly connected to the front end of the bottom of the sliding rod (106); and a spray head (108), the bottom of the fixed rod (107) being fixedly connected to the spray head (108).

5. A high-precision suction foam flat cutting machine according to claim 4, characterized in that: The first transmission member (2) is composed of a connecting plate fixedly connected to the right side of the front end of the workbench (1), a motor fixedly connected to the right end of the connecting plate, a screw fixedly connected to the output shaft at the left end of the motor, and a limit rod fixedly connected to the lower left end of the connecting plate, and the inner screw of the first transmission member (2) passes through the mounting frame (3) and is threadedly connected to the inside thereof, and the inner limit rod of the first transmission member (2) passes through the mounting frame (3) and is slidably connected to the inside thereof.

6. A high-precision suction foam flat cutting machine according to claim 5, characterized in that: The second transmission member (5) is composed of a screw rod rotatably connected to the inner rear side of the mounting frame (3), a moving block threadedly connected to the outer wall of the screw rod, and a motor fixedly connected to the top of the screw rod, and the moving block is fixedly connected to the cutter (6).

7. A high-precision suction foam flat cutting machine according to claim 6, characterized in that: The inner gear of the gear tooth plate member (85) is rotatably connected to the front end of the second mounting plate (86), and the inner gear plate of the gear tooth plate member (85) is slidably connected to the front end of the second mounting plate (86).

8. The high-precision suction foam flat cutting machine according to claim 7, characterized in that: The right side of the front end of the first mounting plate (81) is fixedly connected to a limiting plate (813), the left side of the front end of the first mounting plate (81) is rotatably connected to a rotating disk (88), and the left side of the back of the first sliding slot plate (810) is rotatably connected to the front end of the first mounting plate (81).

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