Automatic tightening equipment for roller expansion sleeve

Abstract

The invention discloses a roller expansion sleeve automatic tightening device, and relates to the technical field of roller expansion sleeve tightening, the roller expansion sleeve automatic tightening device comprises a self-adaptive positioning assembly and an intermittent rotating assembly, and further comprises a stable base, the top of the stable base is fixedly connected with a hanging supporting rod, and the four edges of the bottom of the hanging supporting rod are fixedly connected with supporting angle irons; eight sets of stable bases and eight sets of suspension supporting rods are arranged, the tops of every four sets of suspension supporting rods are jointly and fixedly connected with a connecting top plate, an adjusting suspension structure is arranged at the bottom of the connecting top plate, electric tightening machines are arranged at the bottom of the adjusting suspension structure, and a self-adaptive positioning assembly is arranged between the electric tightening machines. Through cooperation of all the structures of the equipment, manual tightening is replaced, automatic tightening operation is achieved, the labor intensity of workers is relieved, and meanwhile the working efficiency is improved; and the tightening torque of each group of bolts can be recorded and stored, so that real-time export and check are facilitated, and the problems of non-uniform tightening torque, low efficiency and high labor intensity of the traditional manual tightening torque are solved.

Description

Technical Field

[0001] The invention relates to the technical field of roller expansion sleeve tightening, and in particular to an automatic tightening device for a roller expansion sleeve. Background Art

[0002] In many industrial production processes, such as printing, packaging, cable manufacturing and other industries, rollers are often needed to transport materials or serve as supporting components for processing. The roller and the shaft are usually connected by a sleeve to facilitate installation and disassembly, while ensuring the stability of the connection and the efficiency of torque transmission. However, at present, most of the tightening operations of the roller sleeves still rely on manual work, which has problems such as uneven tightening torque, low efficiency, and high labor intensity. It is also difficult to ensure that the tightening degree of each sleeve can meet the precise and consistent requirements, which affects the installation quality and service life of the roller, and further has an adverse effect on the stability of the production process and product quality. Therefore, it is necessary to develop a device that can realize the automatic tightening of roller sleeves to improve production efficiency, ensure tightening quality, and reduce labor costs. Summary of the invention

[0003] The object of the present invention is to provide an automated tightening device for a roller sleeve, which solves the technical problems raised in the above-mentioned background technology by adjusting a suspension structure, an adaptive positioning component, an intermittent rotation component and an operation control system.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a roller sleeve automatic tightening device, comprising an adaptive positioning component, an intermittent rotation component, and also comprising: A stable base, wherein the top of the stable base is fixedly connected with a hanging support rod, and the four sides of the bottom of the hanging support rod are fixedly connected with supporting angle irons, and the stable base and the hanging support rod are respectively provided with eight groups, and the tops of each four groups of hanging support rods are commonly fixedly connected with a connecting top plate, and the bottom of the connecting top plate is provided with an adjustable hanging structure, and the bottom of the adjustable hanging structure is provided with an electric tightening machine, and an adaptive positioning component is provided between the electric tightening machines; An adaptive positioning component is provided with an intermittent rotating component at the middle of the bottom of the adaptive positioning component, and an operation control system is installed on a group of suspension support rods.

[0005] Preferably, the adjustable suspension structure includes a connecting rod, a movable support frame and a connecting top ring, two groups of connecting rods are provided on the connecting top plate, a movable support frame is provided at the bottom of the connecting top plate, a connecting top ring is fixedly connected to the top of the movable support frame, and the connecting top ring is connected to the bottom of the connecting rod.

[0006] Preferably, a movable groove is provided inside the movable support frame, a screw rod and a guide rod are provided inside the movable groove, one end of the screw rod passes through the movable support frame and is fixedly connected to the driving end of the driving motor on the outside, a movable belt block is provided inside the movable groove, a first threaded hole and a guide sliding hole are provided on the movable belt block, and the first threaded hole is rotatably engaged with the screw rod.

[0007] Preferably, the bottom of the moving belt block is fixedly connected to a fixed vertical plate, a connecting frame is provided on the outer side of the fixed vertical plate, the bottom of the connecting frame is fixedly connected to an assembly base plate, and the fixed vertical plate is connected to the connecting frame through a connecting shaft pin, one end of the connecting shaft pin is engaged and assembled with a locking bolt, the bottom of the fixed vertical plate is fixedly connected to a damping telescopic rod, the bottom of the damping telescopic rod is fixedly connected to a hanging rod, and one end of the bottom of the hanging rod is connected to an electric tightening machine.

[0008] Preferably, the adaptive positioning component includes a bearing bottom frame, a bearing top plate, a rotating bracket and a rotating support hole. A bearing bottom frame is provided between the bottoms of the adjusting suspension structure. The top of the bearing bottom frame is fixedly connected to the bearing top plate. The top of the bearing top plate is fixedly connected to two groups of rotating brackets. The rotating bracket is provided with a rotating support hole.

[0009] Preferably, a rotating support cylinder is rotatably installed inside the rotating support hole, and extension convex plates are fixedly connected to the outer sides of both ends of the rotating support cylinder, one end of the extension convex plate is fixedly connected to a fixed horizontal plate, a second threaded hole is opened in the middle of the fixed horizontal plate, a threaded rod is meshed inside the second threaded hole, a rotating handle is fixedly connected to the top end of the threaded rod, and a fixed shaft column is fixedly connected to the bottom end of the threaded rod.

[0010] Preferably, a positioning plate is provided at the bottom of the fixed horizontal plate, and a connecting top cap is fixedly connected to the top of the positioning plate. An axial groove is opened inside the connecting top cap, and a rotating shaft is fixedly connected inside the axial groove. At the same time, the outer side of the fixed shaft column is fixedly connected to the inner shaft of the rotating shaft.

[0011] Preferably, an axis hole is provided on the bearing bottom frame, and an engagement groove is provided between the bearing bottom frame and the bearing top plate.

[0012] Preferably, the intermittent rotation component includes a rotating shaft, a servo motor, a first gear and a second gear. The rotating shaft is rotatably installed inside the shaft hole, one end of the rotating shaft is fixedly connected to the driving end of the servo motor, the outer side of the rotating shaft is fixedly connected to the first gear, the outer side of the rotating support tube is fixedly connected to the second gear, and the first gear is rotatably engaged with the second gear.

[0013] The beneficial effects of the present invention are: 1. The present invention can flexibly adjust the position of roller expansion sleeves of different specifications and models in the equipment according to the differences in size and installation position by adjusting the setting of the suspension structure; whether it is a small and compact expansion sleeve structure or a large and long-wheelbase expansion sleeve assembly, the equipment can accurately align the tightening machine through convenient adjustment operations, effectively avoiding the problem of frequent equipment replacement or complex transformation due to product diversity, greatly improving the general adaptability of the equipment to a variety of expansion sleeve products, and reducing the company's cost investment in equipment purchase and maintenance.

[0014] 2. The present invention sets an adaptive positioning component, which can not only adjust the clamping according to the diameter of the roller to adapt to rollers of various diameters, but also accurately and stably clamp them, greatly broadening the application range of the equipment and reducing the cost of equipping a variety of special clamping equipment due to differences in roller sizes. At the same time, by positioning the roller, the tightening accuracy and quality are significantly improved, ensuring the reliability and stability of the roller expansion sleeve connection, thereby improving the performance and service life of the entire product and reducing the scrap rate and after-sales maintenance costs caused by poor assembly.

[0015] 3. The present invention provides an intermittent rotating component so that the roller can stop accurately according to a preset program, so that the tightening machine can quickly tighten each group of bolts at the ideal position, greatly reducing the time loss of the tightening machine in finding the correct tightening position, achieving seamless connection and efficient flow of the tightening process, and at the same time greatly reducing dependence on manual labor, reducing labor costs and labor intensity.

[0016] 4. Through the coordination between each group of structures of this equipment, it can replace manual tightening and realize automated tightening operation, reduce the labor intensity of manual work and improve work efficiency; and the tightening torque of each group of bolts can be recorded and saved, which is convenient for real-time export and viewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of adjusting the suspension structure of the present invention.

[0019] Figure 3 It is a partial cutaway schematic diagram of the adjustable suspension structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of some components of the adjustable suspension structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the adaptive positioning component and the intermittent rotation component of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the supporting bottom frame and the rotating bracket in the adaptive positioning assembly of the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of some components of the adaptive positioning component of the present invention.

[0024] Figure 8 It is a schematic cross-sectional view of some components of the adaptive positioning component of the present invention.

[0025] The accompanying drawings are marked as follows: 1. Stabilize the base; 101. Hang the support rod; 1011. Support the angle iron; 102. Connect the top plate; 2. Adjust the suspension structure; 201. Connecting rod; 202. Move the support frame; 2021. Connect the top ring; 2022. Move the groove; 203. Screw rod; 2031. Guide rod; 2032. Drive motor; 204. Move the belt block; 2041. First threaded hole; 2042. Guide slide hole; 2043. Fix the vertical plate; 2044. Connecting frame; 2045. Assemble the bottom plate; 205. Damping telescopic rod; 2051. Connecting shaft pin; 2052. Locking bolt; 206. Suspension rod; 207. Electric tightening machine; 3. Adaptive positioning assembly; 301. Load-bearing bottom frame; 3011. Load-bearing top plate; 3012. Rotating bracket; 3013. Rotating support hole; 3014. Engaging groove; 3015. Axis hole; 302. Rotating support cylinder; 3021. Extended convex plate; 3022. Fixed horizontal plate; 3023. Second threaded hole; 303. Threaded rod; 3031. Rotating handle; 3032. Fixed shaft column; 304. Positioning plate; 3041. Connecting top cap; 3042. Axis groove; 3043. Rotating shaft; 4. intermittent rotation assembly; 401. rotating belt shaft; 4011. servo motor; 4012. first gear; 402. second gear; 5. Operation control system. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Example 1 At present, most of the tightening operations of the roller expansion sleeve still rely on manual work, which has problems such as uneven tightening torque, low efficiency, high labor intensity, and it is difficult to ensure that the tightening degree of each expansion sleeve can meet the precise and consistent requirements. This embodiment is specially invented to solve the above problems.

[0028] See also Figure 1 , a roller sleeve automatic tightening device according to an embodiment of the present invention comprises an adaptive positioning component 3, an intermittent rotation component 4, and is characterized in that it also comprises: A stable base 1, the top of the stable base 1 is fixedly connected with a hanging support rod 101, and the four sides of the bottom of the hanging support rod 101 are fixedly connected with supporting angle irons 1011, and the stable base 1 and the hanging support rod 101 are respectively provided with eight groups, and the tops of each four groups of hanging support rods 101 are commonly fixedly connected with a connecting top plate 102, and the bottom of the connecting top plate 102 is provided with an adjusting hanging structure 2, and the bottom of the adjusting hanging structure 2 is provided with an electric tightening machine 207, and an adaptive positioning component 3 is provided between the electric tightening machines 207; An intermittent rotating assembly 4 is provided at the middle of the bottom of the adaptive positioning assembly 3 , and an operation control system 5 is installed on a set of suspension support rods 101 .

[0029] See also Figure 2 , Figure 3 and Figure 4The adjustable suspension structure 2 includes a connecting rod 201, a movable support frame 202 and a connecting top ring 2021. Two groups of connecting rods 201 are provided on the connecting top plate 102. A movable support frame 202 is provided at the bottom of the connecting top plate 102. A connecting top ring 2021 is fixedly connected to the top of the movable support frame 202. The connecting top ring 2021 is connected to the bottom of the connecting rod 201. A movable groove 2022 is provided inside the movable support frame 202. A screw rod 203 and a guide rod 2031 are provided inside the movable groove 2022. One end of the screw rod 203 passes through the movable support frame 202 and The driving end of the outer driving motor 2032 is fixedly connected, and a moving belt block 204 is provided inside the moving groove 2022. The moving belt block 204 is provided with a first threaded hole 2041 and a guide sliding hole 2042. The first threaded hole 2041 is rotatably engaged with the screw rod 203. The bottom of the moving belt block 204 is fixedly connected with a fixed vertical plate 2043. A connecting frame 2044 is provided on the outer side of the fixed vertical plate 2043. The bottom of the connecting frame 2044 is fixedly connected with an assembly bottom plate 2045, and the fixed vertical plate 2043 is connected to the connecting frame 2044 through a connecting shaft pin 2051. The bottom of the fixed vertical plate 2043 is fixedly connected with a damping telescopic rod 205, and the bottom of the damping telescopic rod 205 is fixedly connected with a hanging rod 206. One end of the bottom of the hanging rod 206 is connected to the electric tightening machine 207. By starting the driving motor 2032 to drive the screw rod 203 to rotate, the screw rod 203 is rotatably engaged with the first threaded hole 2041 on the moving belt block 204, and the moving belt block 204 is guided by the upper limit position of the guide rod 2031 through the guide sliding hole 2042. Thus, the screw rod 203 drives the moving belt block 204 to move and adjust, the moving belt block 204 drives the fixed vertical plate 2043 to move, the fixed vertical plate 2043 drives the damping telescopic rod 205 to move through the connecting frame 2044, and the damping telescopic rod 205 drives the electric tightening machine 207 to move and adjust horizontally through the hanging rod 206. Through the setting of the damping telescopic rod 205, the electric tightening machine 207 can be driven to move and adjust vertically, and its position in the equipment can be flexibly adjusted according to the differences in size and installation position of roller expansion sleeves of different specifications and models.

[0030] Example 2 See also Figure 6 , Figure 7 and Figure 8The adaptive positioning component 3 includes a bearing bottom frame 301, a bearing top plate 3011, a rotating bracket 3012 and a rotating support hole 3013. The bearing bottom frame 301 is arranged between the bottom of the adjusting suspension structure 2. The top of the bearing bottom frame 301 is fixedly connected with the bearing top plate 3011. The top of the bearing top plate 3011 is fixedly connected with two sets of rotating brackets 3012. The rotating bracket 3012 is provided with a rotating support hole 3013. The rotating support hole 3013 is rotatably installed with a rotating support tube 302. Both ends of the rotating support tube 302 The outer side is fixedly connected with an extended convex plate 3021, one end of the extended convex plate 3021 is fixedly connected with a fixed horizontal plate 3022, a second threaded hole 3023 is opened in the middle of the fixed horizontal plate 3022, a threaded rod 303 is meshed inside the second threaded hole 3023, a top end of the threaded rod 303 is fixedly connected with a handle 3031, a bottom end of the threaded rod 303 is fixedly connected with a fixed shaft column 3032, a positioning plate 304 is provided at the bottom of the fixed horizontal plate 3022, and a connecting top is fixedly connected to the top of the positioning plate 304. The cap 3041 is connected to the top cap 3041 and an axis groove 3042 is formed inside the axis groove 3042, and a rotating shaft 3043 is fixedly connected inside the axis groove 3042. At the same time, the outer side of the fixed axis column 3032 is fixedly connected to the inner axis of the rotating shaft 3043. By placing the roller in the rotating support cylinder 302, and then turning the handle 3031 to drive the threaded rod 303 to engage and move in the second threaded hole 3023, the threaded rod 303 drives the positioning plate 304 to move through the fixed axis column 3032, and then the roller is clamped and positioned. The rotating shaft 3043 prevents the positioning plate 304 from rotating with the threaded rod 303 when the threaded rod 303 rotates. Not only can the clamping be adjusted according to the diameter of the roller to adapt to rollers of various diameters, but it can also accurately and stably clamp them, greatly broadening the scope of application of the equipment. At the same time, by positioning the roller, the tightening accuracy and quality are significantly improved, and the reliability and stability of the roller expansion sleeve connection are guaranteed, thereby improving the performance and service life of the entire product, and reducing the scrap rate and after-sales maintenance costs caused by poor assembly.

[0031] See also Figure 5 and Figure 7, an axial hole 3015 is provided on the bearing bottom frame 301, and an engagement groove 3014 is provided between the bearing bottom frame 301 and the bearing top plate 3011, the intermittent rotation component 4 includes a rotating belt shaft 401, a servo motor 4011, a first gear 4012 and a second gear 402, the rotating belt shaft 401 is rotatably installed inside the axial hole 3015, one end of the rotating belt shaft 401 is fixedly connected to the driving end of the servo motor 4011, the outer side of the rotating belt shaft 401 is fixedly connected to the first gear 4012, the outer side of the rotating support cylinder 302 is fixedly connected to the second gear 402, and the first gear 4 012 is rotatably engaged with the second gear 402. By presetting the servo motor 4011, it can be intermittently rotated, thereby driving the rotating belt shaft 401 to rotate, and the rotating belt shaft 401 drives the first gear 4012 to rotate, and the first gear 4012 engages with the second gear 402 to rotate, so that the second gear 402 drives the rotating support cylinder 302 to rotate intermittently, and then after the electric tightening machine 207 is tightened, it can be rotated to the next group of untightened positions, which is convenient for the electric tightening machine 207 to tighten, and greatly reduces the time loss of the electric tightening machine 207 to find the correct tightening position.

[0032] The specific usage and function of this embodiment: In the present invention, the roller is first placed in the rotating support cylinder 302, and then the handle 3031 is turned to drive the threaded rod 303 to engage and move in the second threaded hole 3023, so that the threaded rod 303 drives the positioning plate 304 to move through the fixed shaft column 3032, and then the roller is clamped and positioned. Not only can the clamping be adjusted according to the diameter of the roller so that it can adapt to rollers of various diameters and specifications, but it can also accurately and stably clamp them, greatly broadening the application range of the equipment. At the same time, through the positioning of the roller, the tightening accuracy and quality are significantly improved, and the reliability and stability of the roller expansion sleeve connection are guaranteed, thereby improving the performance and service life of the entire product, and reducing the scrap rate and after-sales maintenance costs caused by poor assembly. Then, through the cooperation of the driving motor 2032 and the screw rod 203, the electric tightening machine 207 is aligned with the expansion sleeve bolt to be tightened, and then the expansion sleeve bolt is tightened to the corresponding torque by the electric tightening machine 207, and the tightening is controlled by the operation control system 5 After the torque is automatically recorded, it is convenient to export and view in real time. After tightening, the electric tightening machine 207 is moved out of the last group of tightened bolts through the cooperation of the driving motor 2032 and the screw rod 203. At this time, the servo motor 4011 is preset to make it intermittently rotate, thereby driving the rotating belt shaft 401 to rotate, and the rotating belt shaft 401 drives the first gear 4012 to rotate, and the first gear 4012 engages with the second gear 402 to rotate, so that the second gear 402 drives the rotating support cylinder 302 to rotate intermittently, so that the position of the next group of untightened bolts is aligned with the tightening head of the electric tightening machine 207, which is convenient for the electric tightening machine 207 to tighten, greatly reducing the time loss of the electric tightening machine 207 to find the correct tightening position, and the above actions are repeated, so that all the bolts can be tightened, replacing the traditional manual tightening, realizing automatic tightening, reducing the intensity of manual work, and improving work efficiency; and there is a recording and saving function for the tightening torque of each group of bolts, which is convenient for real-time export and viewing, making it traceable.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller sleeve automatic tightening device, comprising an adaptive positioning component (3) and an intermittent rotation component (4), characterized in that: Also includes: A stable base (1), wherein the top of the stable base (1) is fixedly connected to a suspension support rod (101), and the four sides of the bottom of the suspension support rod (101) are fixedly connected to support angle irons (1011), and the stable base (1) and the suspension support rod (101) are respectively provided with eight groups, and the tops of each four groups of suspension support rods (101) are commonly fixedly connected to a connecting top plate (102), and the bottom of the connecting top plate (102) is provided with an adjustable suspension structure (2), and the bottom of the adjustable suspension structure (2) is provided with an electric tightening machine (207); An adaptive positioning assembly (3) is arranged between the electric tightening machines (207), an intermittent rotation assembly (4) is arranged in the middle of the bottom of the adaptive positioning assembly (3), and an operation control system (5) is installed on a set of suspension support rods (101).

2. The automatic tightening device for roller sleeve expansion according to claim 1 is characterized in that: The adjustable suspension structure (2) comprises a connecting rod (201), a movable support frame (202) and a connecting top ring (2021); two groups of connecting rods (201) are provided on the connecting top plate (102); a movable support frame (202) is provided at the bottom of the connecting top plate (102); a connecting top ring (2021) is fixedly connected to the top of the movable support frame (202); and the connecting top ring (2021) is connected to the bottom of the connecting rod (201).

3. The automatic tightening device for roller sleeve expansion according to claim 2 is characterized in that: The movable support frame (202) is provided with a movable groove (2022) inside, and a screw rod (203) and a guide rod (2031) are provided inside the movable support frame (2022). One end of the screw rod (203) passes through the movable support frame (202) and is fixedly connected to the driving end of the driving motor (2032) outside. A movable belt block (204) is provided inside the movable groove (2022). A first threaded hole (2041) and a guide sliding hole (2042) are provided on the movable belt block (204). The first threaded hole (2041) is rotatably engaged with the screw rod (203).

4. The automatic tightening device for roller sleeve expansion according to claim 3 is characterized in that: The bottom of the movable belt block (204) is fixedly connected to a fixed vertical plate (2043), the outer side of the fixed vertical plate (2043) is provided with a connecting frame (2044), the bottom of the connecting frame (2044) is fixedly connected to an assembly bottom plate (2045), and the fixed vertical plate (2043) is connected to the connecting frame (2044) via a connecting shaft pin (2051), one end of the connecting shaft pin (2051) is engaged with a locking bolt (2052), the bottom of the fixed vertical plate (2043) is fixedly connected to a damping telescopic rod (205), the bottom of the damping telescopic rod (205) is fixedly connected to a hanging rod (206), and one end of the bottom of the hanging rod (206) is connected to an electric tightening machine (207).

5. The automatic tightening device for roller expansion sleeve according to claim 1 is characterized in that: The adaptive positioning component (3) comprises a bearing bottom frame (301), a bearing top plate (3011), a rotating bracket (3012) and a rotating support hole (3013); a bearing bottom frame (301) is provided between the bottom of the adjustable suspension structure (2); the top of the bearing bottom frame (301) is fixedly connected to the bearing top plate (3011); the top of the bearing top plate (3011) is fixedly connected to two groups of rotating brackets (3012); and the rotating brackets (3012) are provided with rotating support holes (3013).

6. The automatic tightening device for roller sleeve expansion according to claim 5, characterized in that: A rotating support cylinder (302) is rotatably mounted inside the rotating support hole (3013); extension convex plates (3021) are fixedly connected to the outer sides of both ends of the rotating support cylinder (302); one end of the extension convex plate (3021) is fixedly connected to a fixed horizontal plate (3022); a second threaded hole (3023) is provided in the middle of the fixed horizontal plate (3022); a threaded rod (303) is meshed inside the second threaded hole (3023); a rotating handle (3031) is fixedly connected to the top end of the threaded rod (303); and a fixed shaft column (3032) is fixedly connected to the bottom end of the threaded rod (303).

7. The automatic tightening device for roller sleeve expansion according to claim 6 is characterized in that: A positioning plate (304) is provided at the bottom of the fixed horizontal plate (3022), a connecting top cap (3041) is fixedly connected to the top of the positioning plate (304), an axis groove (3042) is provided inside the connecting top cap (3041), a rotating shaft (3043) is fixedly connected inside the axis groove (3042), and the outer side of the fixed axis column (3032) is fixedly connected to the inner shaft of the rotating shaft (3043).

8. The automatic tightening device for roller expansion sleeve according to claim 5, characterized in that: An axis hole (3015) is provided on the bearing bottom frame (301), and an engagement groove (3014) is provided between the bearing bottom frame (301) and the bearing top plate (3011).

9. The roller sleeve automatic tightening device according to claim 1, characterized in that: The intermittent rotation component (4) comprises a rotating belt shaft (401), a servo motor (4011), a first gear (4012) and a second gear (402); the rotating belt shaft (401) is rotatably mounted inside the shaft hole (3015); one end of the rotating belt shaft (401) is fixedly connected to the driving end of the servo motor (4011); the outer side of the rotating belt shaft (401) is fixedly connected to the first gear (4012); the outer side of the rotating support cylinder (302) is fixedly connected to the second gear (402); and the first gear (4012) and the second gear (402) are rotatably meshed.

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