A fully automatic ribbon winding machine and its method

Abstract

The present invention discloses a fully automatic ribbon winding machine and a method thereof, and relates to the technical field of ribbon winding machines, comprising a workbench, wherein brackets are fixedly installed at the four corners of the top of the workbench, a top plate is fixedly installed on the top of the bracket, a ribbon winding assembly is fixedly installed on the top of the workbench, the ribbon winding assembly is fixedly installed on the top inner wall of the top plate, a ribbon box is fixedly installed on the top of the workbench, and the ribbon winding assemblies are fixedly installed on the top of the left and right sides of the workbench. By arranging the ribbon winding assembly, when winding the ribbon, two groups of lever frames are moved back and forth in reverse, so that the ribbon is quickly and conveniently formed into an S-shaped winding structure, so that the ribbon can be filled in the ribbon box, the ribbon winding installation efficiency is conveniently improved, and the ribbon is conveniently installed neatly in the ribbon box, the utilization rate of the internal volume of the ribbon box is effectively improved, the ribbon is conveniently laid densely in the ribbon box, the ribbon capacity in the ribbon box is increased, and the service life of the ribbon box is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of ribbon winding machines, and in particular to a fully automatic ribbon winding machine and a method thereof. Background Art

[0002] The ribbon is a kind of printing consumables, mainly used in dot matrix printers. It is made of a ribbon base woven with nylon threads as raw materials, which is soaked in ink and dyed. The composition of the ribbon is very simple. It is made of a ribbon base woven with nylon threads as raw materials, which is soaked in ink and dyed. A good ribbon should have a durable and elastic base, and should not lint, break or ruffle after long-term printing. Its performance is mainly due to the flat surface of the ribbon base, no protruding fiber knots, and uniform and tight warp and weft density.

[0003] The prior art has the following deficiencies: the existing ribbon winding machines generally use a transmission roller to transmit the ribbon to the ribbon box, and by adjusting the force direction of the transmission roller, the ribbon automatically forms an S-shaped folding structure. However, since the S-shape formed by this form is relatively small, the ribbon accumulates at the inlet end of the ribbon box and continues to move toward the outlet end. This winding form has a low winding efficiency. At the same time, since the ribbons distributed in the ribbon box are relatively messy, it is not conducive to improving the utilization rate of the internal volume of the ribbon box, and it is not convenient to quickly and evenly wind the ribbon and install it inside the ribbon box, thereby inconvenient to increase the service life of the ribbon box.

[0004] Therefore, it is necessary to invent a fully automatic ribbon winding machine and method thereof. Summary of the invention

[0005] To this end, the present invention provides a fully automatic ribbon winding machine and method thereof, which provides a ribbon winding assembly, and when winding the ribbon, two groups of lever frames are moved back and forth in opposite directions, so that the ribbon can be quickly formed into an S-shaped winding structure, so that the ribbon can be filled inside the ribbon box, which is convenient for improving the ribbon winding and installation efficiency, and convenient for neatly installing the ribbon in the ribbon box, effectively improving the utilization rate of the internal volume of the ribbon box 300, facilitating the dense laying of the ribbon inside the ribbon box, and increasing the ribbon capacity in the ribbon box, thereby increasing the service life of the ribbon box, so as to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic ribbon winding machine and method thereof, comprising a workbench, wherein brackets are fixedly installed at the four corners of the top of the workbench, a top plate is fixedly installed on the top of the bracket, a ribbon winding assembly is fixedly installed on the top of the workbench, the ribbon winding assembly is fixedly installed on the top inner wall of the top plate, a ribbon box is fixedly installed on the top of the workbench, and ribbon winding assemblies are fixedly installed on the top of the left and right sides of the workbench, the two ribbon winding assemblies are used to convey the ribbon to the ribbon box, the ribbon winding assembly comprises an electric push rod, the electric push rod is fixedly installed on the inner wall of the top plate, the output end of the electric push rod is fixedly installed with a lifting plate, the bottom of the lifting plate is slidably connected to the driving frame, the bottom of the driving frame is threadedly connected to the lever frame, and the lever frame is used to wind the ribbon in an S shape.

[0007] Preferably, the ribbon winding assembly includes a servo motor 1, which is fixedly mounted on the top of the workbench, a turntable is fixedly mounted on the outer wall of the output shaft of the servo motor 1, the ribbon is wound on the outer wall of the turntable, an upper cover is plugged into and installed on the top of the turntable, and the upper cover is used to limit the ribbon on the outer wall of the turntable.

[0008] Preferably, an inlet is provided on the left side of the ribbon box, and an outlet is provided on the right side of the ribbon box; roller racks are fixedly mounted on inner walls of the inlet and outlet, and the inner wall of the roller rack is rotatably connected to a clamping roller.

[0009] Preferably, the lifting plate includes a screw 1, a slide groove is opened on the inner wall of the bottom of the lifting plate, the inner wall of the slide groove is rotatably connected to the screw 1 through a bearing, a slide seat is fixedly installed on the top of the driving frame, and the inner wall of the slide seat is threadedly connected to the outer wall of the screw 1.

[0010] Preferably, the inner walls at the front and rear ends of the drive frame are rotatably connected to screw 2 through bearings. Screw 2 is a positive and negative thread screw. Two screws are symmetrically arranged on the left and right. Pulleys are fixedly installed on the outer walls of the rear ends of the two screws. A belt is driven and connected between the outer walls of the two pulleys.

[0011] Preferably, gear one is fixedly mounted on the outer wall of the second lead screw, servo motor two is fixedly mounted on the outer wall of the driving frame, gear two is fixedly mounted on the output end of the second servo motor, and gear one and gear two are meshingly connected.

[0012] Preferably, the driving frame includes a limiting frame, two limiting frames are provided, and the two limiting frames are respectively fixedly mounted on the inner walls of the bottom ends of the left and right sides of the driving frame, the limiting frame is provided with an L shape, and a through hole is opened on the inner wall of the limiting frame.

[0013] Preferably, the lever frame includes a push plate, two of which are symmetrically arranged front and back, the outer walls of the push plates are respectively threadedly connected to the outer walls of the two lead screws, and limit blocks are fixedly installed on the inner walls at the left and right ends of the push plates.

[0014] Preferably, support plates are fixedly installed at the left and right ends of the push plate, the bottom outer wall of the support plate is slidably connected to the top inner wall of the limit frame, the support plate is slidably connected to the inner wall of the through hole, and a lever is fixedly installed at the bottom of the push plate, and the lever is arranged in a Z shape.

[0015] A method for using a fully automatic ribbon winding machine includes the following specific operating steps:

[0016] S1: Wind the ribbon onto the outer wall of the turntable at the left entrance of the ribbon box, and then snap-fit ​​the upper cover onto the top of the left turntable to snap-fit ​​the ribbon;

[0017] S2: The ribbon is introduced into the ribbon box from the inlet and led out from the outlet, and the right end of the ribbon is fixedly connected to the outer wall of the turntable on the right side of the outlet at any time, and then the servo motor on the right side is driven to rotate, so that the ribbon is wound to a suitable length on the outer wall of the turntable on the right side;

[0018] S3: driving the electric push rod to control the lifting plate to move downward, so that the lifting plate drives the lever frame to move downward, so that the two sets of levers are inserted into the inner wall of the ribbon box in an interlaced manner, and the guide screw is driven to rotate to drive the slide to move forward and backward, so that the two sets of levers are located at the front and rear sides of the ribbon;

[0019] S4: By driving the servo motor 2, the servo motor 2 drives the two lead screws 2 to rotate synchronously, and the lead screw 2 controls the lever to pull the ribbon back and forth alternately to move it back and forth, so that the ribbon is folded into an S shape and densely laid in the ribbon box, and the ribbon is staggered and wound. After the ribbon is cut, the two ends of the ribbon are turned inside out and sewn together to complete the installation of the ribbon.

[0020] The beneficial effects of the present invention are:

[0021] 1. By setting the ribbon winding assembly, when winding the ribbon, the position of the driving frame at the bottom of the lifting plate can be adjusted to adjust the two groups of lever frames to move back and forth in reverse, so that the ribbon can be quickly formed into an S-shaped winding structure, so that the ribbon can be filled inside the ribbon box, which is convenient for improving the ribbon winding and installation efficiency, and convenient for neatly installing the ribbon in the ribbon box, effectively improving the utilization rate of the internal volume of the ribbon box, facilitating the dense laying of the ribbon inside the ribbon box, and increasing the ribbon capacity in the ribbon box, thereby increasing the service life of the ribbon box;

[0022] 2. By setting the Z-shaped levers to be staggered front and back, it is convenient to quickly pull the ribbon outside the ribbon box into the ribbon box when the ribbon is moved, forming a reciprocating folded S-shaped structure, which improves work efficiency, facilitates one-step molding, and improves the practicality and work efficiency of the equipment;

[0023] 3. By setting two lead screws 2 and driving through a pulley and a belt, the two lead screws 2 can rotate synchronously. The two push plates are synchronously bolted through the two lead screws 2, so that the two ends of the push plates can move toward and against each other synchronously, thereby improving the stability when the ribbon is moved for winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the main structure provided by the present invention;

[0025] Figure 2 A side view schematic diagram of the structure provided by the present invention;

[0026] Figure 3 A schematic diagram of the top view of the ribbon box provided by the present invention;

[0027] Figure 4 A schematic diagram of the exploded structure of the ribbon winding assembly provided by the present invention;

[0028] Figure 5 A schematic diagram of the rear view structure of the ribbon winding assembly provided by the present invention;

[0029] Figure 6 A schematic diagram of the exploded structure of the ribbon winding assembly provided by the present invention;

[0030] Figure 7 A schematic diagram of the lifting plate provided by the present invention when viewed from above;

[0031] Figure 8 A schematic diagram of the installation structure of the limit frame provided by the present invention;

[0032] Fig. 9 A schematic diagram of the top view of the driving frame provided by the present invention;

[0033] Fig.10 This is a schematic diagram of the lever frame structure provided by the present invention.

[0034] In the figure: workbench 100, bracket 110, top plate 120, servo motor 1 200, turntable 210, upper cover 220, ribbon cassette 300, inlet 310, outlet 320, roller frame 330, clamping roller 340, electric push rod 400, lifting plate 410, slide groove 420, lead screw 1 430, drive frame 500, slide seat 510, lead screw 2 520, gear 1 530, pulley 540, belt 550, servo motor 2 560, gear 2 561, limit frame 570, through hole 571, lever frame, push plate 610, limit block 620, support plate 630, lever 640. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] See attached Figure 1-10 The present invention provides a fully automatic ribbon winding machine and method thereof. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic ribbon winding machine and method thereof, comprising a workbench 100, the workbench 100 is provided for installing a ribbon box 300 and a ribbon winding assembly for winding and installing a ribbon on the ribbon box 300, brackets 110 are fixedly installed at the four corners of the top of the workbench 100, the brackets 110 are provided for installing a top plate 120, the top plate 120 is fixedly installed on the top of the bracket 110, the top plate 120 is used to install an electric push rod 400, the ribbon winding assembly is fixedly installed on the top of the workbench 100, the ribbon winding assembly is fixedly installed on the inner wall of the top plate 120, the ribbon box 300 is fixedly installed on the top of the workbench 100, the ribbon winding assembly is fixedly installed on the top of the left and right sides of the workbench 100, the two ribbon winding assemblies are used to transport the ribbon to the ribbon box 300, the ribbon winding assembly includes an electric push rod The rod 400 is provided with an electric push rod 400 for driving and adjusting the height of the lifting plate 410, so that the lifting plate 410 drives the lever frame to lift and lower, so that the lever frame can drive the lever 640 to contact and separate with the ribbon, and control the lever 640 to move the ribbon to form an S-shaped folding structure. The electric push rod 400 is fixedly installed on the inner wall of the top plate 120, and the lifting plate 410 is fixedly installed on the output end of the electric push rod 400. The lifting plate 410 is provided to connect the drive frame 500, and the drive frame 500 is controlled to move forward and backward through the lifting plate 410. The bottom of the lifting plate 410 is slidably connected to the drive frame 500, and the bottom of the drive frame 500 is threadedly connected to the lever frame. The lever frame is used to wind the ribbon in an S shape. The drive frame 500 is provided to connect the lever frame, so that the lever frame can drive the lever 640 to pull the ribbon forward and backward to form an S-shaped reciprocating folding structure.

[0037] The ribbon winding assembly includes a servo motor 200. The ribbon winding assembly is used to wind up the ribbon, so that the wound ribbon can be conveniently installed in the ribbon box 300. The servo motor 200 is fixedly installed on the top of the workbench 100. The servo motor 200 is used to drive the turntable 210 to rotate, so that the turntable 210 can drive the ribbon to be wound and released. The turntable 210 is fixedly installed on the outer wall of the output shaft of the servo motor 200. The outer wall of the turntable 210 is wound with the ribbon. The top cover 220 is plugged and installed on the top of the turntable 210. The top cover 220 is used to limit the ribbon on the outer wall of the turntable 210. The ribbon box 300 is used to store the ribbon, so that the ribbon can be conveniently installed in the printer for use. The ink is transferred to the surface of the printing material through the ribbon to complete the printing. The inlet 310 and the outlet 320 are set The ribbon cassette 300 is provided with an inlet 310 on the left side and an outlet 320 on the right side. A roller rack 330 is fixedly installed on the inner walls of the inlet 310 and the outlet 320. The inner wall of the roller rack 330 is rotatably connected to a clamping roller 340. The inlet 310 and the outlet 320 are provided with an inlet 310 and an outlet 320. The inlet 310 and the outlet 320 are provided with an inlet 310 and an outlet 320. The inlet 310 and the outlet 320 are provided with an inlet 310 and an outlet 320. The roller rack 330 is rotatably connected to the inner wall of the clamping roller 340. The inlet 310 and the outlet 320 are provided with an inlet 310 and an outlet 320. The ribbon cassette 300 is provided with an inlet 310 and an outlet 320. The ribbon cassette 300 is provided with an inlet 310 and an outlet 320. The roller rack 330 is provided with a roller 340. The roller 340 is provided with an inlet 310 and an outlet 320. The roller rack 330 is provided with a roller 340. The roller 340 is provided. The ribbon entering and exiting the ribbon cassette 300 is clamped and limited, which improves the stability of the ribbon when entering and exiting the ribbon cassette 300. The ribbon has a guiding and limiting function.

[0038] The lifting plate 410 includes a lead screw 430, which is used to drive the slide 510 to move forward and backward, so that the slide 510 can drive the driving frame 500 to adjust its position, thereby improving the practicality of the driving frame 500. A slide groove 420 is provided on the inner wall of the bottom of the lifting plate 410. The inner wall of the slide groove 420 is rotatably connected to the lead screw 430 through a bearing. The slide 510 is fixedly installed on the top of the driving frame 500. The inner wall of the slide 510 is threadedly connected to the outer wall of the lead screw 430. The inner walls of the front and rear ends of the driving frame 500 are rotatably connected to the lead screw 2 520 through bearings. The lead screw 2 520 is a positive and negative thread lead screw. There are two lead screws 520 symmetrically arranged on the left and right. Pulleys 540 are fixedly installed on the outer walls of the rear ends of the two lead screws 520. A belt 550 is connected between the outer walls of the two pulleys 540. The outer wall of the lead screw 2 520 is fixedly installed with a gear 530. The outer wall of the driving frame 500 is fixedly installed with a servo motor 2 560. The servo motor The output end of the second 560 is fixedly installed with a gear 2 561, and the gear 1 530 and the gear 2 561 are meshed and connected. The outer walls of the left and right sides of the lead screw 2 520 are respectively threadedly connected to the inner walls of the two push plates 610. Since the lead screw 2 520 is a positive and negative thread lead screw, the lead screw 2 520 can drive the two push plates 610 to move synchronously in the same direction or in the opposite direction when it rotates, so that the push plates 610 drive the lever 640 to move, so that the two groups of levers 640 can shift the two sides of the ribbon in opposite directions, so that the ribbon is stretched to the front and rear sides to form an S-shaped structure that is staggered and folded, so that under the action of the lever 640, the ribbons on the outer walls of the two turntables 210 can be quickly pulled into the interior of the ribbon box 300 for folding and distribution. The outer wall of the lever 640 is rotatably connected with a roller, so that when it is shifted by the lever 640, the friction between the lever 640 and the ribbon is reduced, thereby improving the efficiency of the ribbon winding and the force protection of the color plate surface.

[0039] The driving frame 500 includes a limit frame 570, and two limit frames 570 are provided. The two limit frames 570 are respectively fixedly installed on the inner walls of the bottom ends of the left and right sides of the driving frame 500. The limit frame 570 is provided with an L shape, and a through hole 571 is opened on the inner wall of the limit frame 570. The limit frame 570 is provided to support the front and rear push plates 610, so as to avoid collision between the push plates 610, improve the stability between the two groups of levers 640, and avoid crossing. The lever frame includes a push plate 610, and two push plates 610 are symmetrically provided in front and back. The outer walls of the push plates 610 are respectively connected to the two lead screws 52 0 is threadedly connected to the outer wall, and the limit blocks 620 are fixedly installed on the inner walls of the left and right ends of the push plate 610. The left and right ends of the push plate 610 are fixedly installed with the supporting plates 630. By setting the supporting plates 630 to be slidably connected with the top of the limit frame 570, the lever frame has a supporting effect. The outer wall of the bottom of the supporting plate 630 is slidably connected with the inner wall of the top of the limit frame 570. The supporting plate 630 is slidably connected with the inner wall of the through hole 571. The bottom of the push plate 610 is fixedly installed with a lever 640, and the lever 640 is set in a Z shape. By setting the lever 640 in a Z shape, the front and rear groups of levers 640 can be staggered, so that the ribbon is located between the two groups of levers 640.

[0040] A method for using a fully automatic ribbon winding machine includes the following specific operating steps:

[0041] S1: Winding the ribbon onto the outer wall of the turntable 210 at the left entrance 310 of the ribbon box 300, and then snap-fitting the upper cover 220 onto the top of the left turntable 210 to snap-fit ​​the ribbon;

[0042] S2: The ribbon is introduced into the inlet 310 of the ribbon box 300 and led out from the outlet 320, and the right end of the ribbon is fixedly connected to the outer wall of the turntable 210 on the right side of the outlet 320 at any time, and then the servo motor 200 on the right side is driven to rotate so that the ribbon is wound to a suitable length on the outer wall of the turntable 210 on the right side;

[0043] S4: The lifting plate 410 is controlled to move downward by driving the electric push rod 400, so that the lifting plate 410 drives the lever frame to move downward, so that the two sets of levers 640 are inserted into the inner wall of the ribbon box 300 in an interlaced manner, and the guide screw 430 is driven to rotate, so that the slide 510 is driven to move forward and backward, so that the two sets of levers 640 are located at the front and rear sides of the ribbon;

[0044] S5: By driving the servo motor 560, the servo motor 560 drives the two lead screws 520 to rotate synchronously, and the lead screw 520 controls the lever 640 to pull the ribbon back and forth alternately to move it back and forth, so that the ribbon is folded into an S shape and densely laid in the ribbon box 300, and the staggered winding of the ribbon is completed. After the ribbon is cut, the two ends of the ribbon are turned inside out and sewn together to complete the installation of the ribbon.

[0045] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the above technical solutions or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A method for using a fully automatic ribbon winding machine, characterized in that: The specific steps are as follows: S1: Winding and installing the ribbon on the outer wall of the turntable (210) at the left entrance (310) of the ribbon box (300), and then snap-fitting and installing the upper cover (220) on the top of the left turntable (210) to snap-fit ​​and install the ribbon; S2: introducing the ribbon from the inlet (310) of the ribbon box (300) and leading it out from the outlet (320), then fixing the right end of the ribbon to the outer wall of the turntable (210) on the right side of the outlet (320), and then driving the servo motor 1 (200) on the right side to rotate so that the ribbon is wound to a suitable length around the outer wall of the turntable (210) on the right side; S3: driving the electric push rod (400) to control the lifting plate (410) to move downward, so that the lifting plate (410) drives the lever frame to move downward, so that the two groups of levers (640) are inserted into the inner wall of the ribbon box (300) in an interlaced manner, and driving the lead screw (430) to rotate to drive the slide seat (510) to move forward and backward, so that the two groups of levers (640) are located at the front and rear sides of the ribbon; S4: by driving the servo motor 2 (560), the servo motor 2 (560) drives the two lead screws 2 (520) to rotate synchronously, and the lead screw 2 (520) controls the lever (640) to pull the ribbon back and forth alternately, so that the ribbon is folded into an S shape and closely laid in the ribbon box (300), and the ribbon is interlaced and wound, and then the two ends of the ribbon are turned inside out and sewn together after the ribbon is cut, so as to complete the installation of the ribbon; The fully automatic ribbon winding machine used in the above-mentioned method of use comprises a workbench (100), brackets (110) are fixedly installed at the four corners of the top of the workbench (100), a top plate (120) is fixedly installed on the top of the bracket (110), and a ribbon winding assembly is fixedly installed on the top of the workbench (100), characterized in that: the ribbon winding assembly is fixedly installed on the inner wall of the top of the top plate (120), a ribbon box (300) is fixedly installed on the top of the workbench (100), and the ribbon winding assemblies are fixedly installed on the top of the left and right sides of the workbench (100), and the two ribbon winding assemblies are used to transport the ribbon to the ribbon box (300), and the ribbon winding assembly includes an electric push rod (40 0), the electric push rod (400) is fixedly mounted on the inner wall of the top plate (120), the output end of the electric push rod (400) is fixedly mounted on a lifting plate (410), the bottom of the lifting plate (410) is slidably connected to the driving frame (500), the bottom of the driving frame (500) is threadedly connected to the lever frame, the lever frame is used to wind the ribbon in an S-shaped manner, the driving frame (500) comprises a limit frame (570), two limit frames (570) are provided, the two limit frames (570) are respectively fixedly mounted on the inner walls of the bottom ends of the driving frame (500) on the left and right sides, the limit frame (570) is arranged in an L shape, and the inner wall of the limit frame (570) is provided with a through hole (571), The lever frame includes a push plate (610), two of which are symmetrically arranged in front and back, the outer walls of the push plates (610) are respectively threadedly connected to the outer walls of two lead screws (520), the inner walls of the left and right ends of the push plates (610) are fixedly installed with limit blocks (620), the left and right ends of the push plates (610) are fixedly installed with support plates (630), the bottom outer wall of the support plate (630) is slidably connected to the top inner wall of the limit frame (570), the support plate (630) is slidably connected to the inner wall of the through hole (571), the bottom of the push plate (610) is fixedly installed with a lever (640), and the lever (640) is arranged in a Z shape, and the ribbon winding assembly includes a servo motor (200) The servo motor 1 (200) is fixedly mounted on the top of the workbench (100); a turntable (210) is fixedly mounted on the outer wall of the output shaft of the servo motor 1 (200); a ribbon is wound around the outer wall of the turntable (210); an upper cover (220) is plugged and mounted on the top of the turntable (210); the upper cover (220) is used to limit the ribbon on the outer wall of the turntable (210); an inlet (310) is opened on the left side of the ribbon box (300); an outlet (320) is opened on the right side of the ribbon box (300); roller racks (330) are fixedly mounted on the inner walls of the inlet (310) and the outlet (320); and the inner wall of the roller rack (330) is rotatably connected to a clamping roller (340); The lifting plate (410) comprises a lead screw 1 (430); a slide groove (420) is provided on the inner wall of the bottom of the lifting plate (410); the inner wall of the slide groove (420) is rotatably connected to the lead screw 1 (430) via a bearing; a slide seat (510) is fixedly installed on the top of the driving frame (500); the inner wall of the slide seat (510) is threadedly connected to the outer wall of the lead screw 1 (430); The inner walls at the front and rear ends of the driving frame (500) are rotatably connected to the second lead screw (520) via bearings. The second lead screw (520) is a positive and negative lead screw. Two second lead screws (520) are symmetrically arranged on the left and right sides. The outer walls of the rear ends of the two second lead screws (520) are fixed with pulleys (540). The outer walls of the two pulleys (540) are connected by a transmission belt (550); The outer wall of the second lead screw (520) is fixedly mounted with a gear one (530), the outer wall of the drive frame (500) is fixedly mounted with a servo motor two (560), the output end of the second servo motor (560) is fixedly mounted with a gear two (561), and the gear one (530) and the gear two (561) are meshingly connected.

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