Pipe feeding mechanism

Abstract

The utility model discloses a tube feeding mechanism which comprises a fixing plate, two vertically-aligned tube needle frames are arranged on the fixing plate, at least two tube needles are arranged on each tube needle frame, the tube needles on the two tube needle frames vertically correspond to each other in a one-to-one mode and are coaxially arranged, and every two vertically-corresponding tube needles form a tube needle set. A vertical moving mechanism and a clamping mechanism driven by the vertical moving mechanism to ascend and descend are arranged on one side of the fixing plate, the stroke of the clamping mechanism is between the two tube needle frames, the clamping mechanism is provided with at least two clamping jaws, the number of the clamping jaws is consistent with that of the tube needle sets, and the clamping jaws and the tube needle sets are correspondingly arranged. The tail end of each clamping jaw is provided with a clamping opening used for clamping a rubber tube penetrating between the two tube needles in the same set. According to the rubber tube clamping device, the problems that rubber tubes of different specifications are difficult to clamp in the existing transformer production equipment, and the clamping is easy to deviate are solved, the production efficiency is improved, and the productivity and the yield are favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer production equipment, in particular to a pipe delivery mechanism. Background Art

[0002] With the development of science and technology, the application of electronic equipment in production or life is becoming more and more extensive. The transformer is a basic electronic component used to change the voltage of alternating current through the principle of electromagnetic induction. It plays a very important role in electrical equipment. The current micro transformers, such as the on-board transformers on PCB boards, need to be processed with pipes for the pin copper wires during production to protect the pin copper wires.

[0003] Although the current transformer production equipment can realize automatic tube feeding to facilitate tube threading, it is difficult to clamp hoses of different specifications, resulting in low production efficiency. In addition, the clamping device in the existing equipment simply clamps the hose, causing the hose to easily deviate, which may make it impossible to align during tube threading, affecting production quality. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a tube feeding mechanism to solve the problem that the current transformer production equipment is difficult to support the clamping of hoses of different specifications and the clamping is prone to deviation, thereby improving production efficiency and being conducive to improving production capacity and yield rate.

[0005] The utility model is implemented by the following technical solutions:

[0006] A pipe delivery mechanism includes a fixing plate;

[0007] The fixing plate is provided with two vertically aligned tube needle racks, each of which is provided with at least two tube needles, and the multiple tube needles on the two tube needle racks correspond vertically to each other and are coaxially arranged, and the two tube needles corresponding to each other above and below form a tube needle group;

[0008] A vertical moving mechanism and a clamping mechanism driven to rise and fall by the vertical moving mechanism are provided on one side of the fixed plate. The stroke of the clamping mechanism is between the two tube needle racks. The clamping mechanism is provided with at least two clamping jaws. The number of the clamping jaws is consistent with the number of the tube needle groups and is arranged accordingly. The end of the clamping jaw is provided with a clamping opening for clamping the rubber hose passed between the two tube needles in the same group.

[0009] Preferably, the clamping mechanism is provided with at least two parallel-arranged clamping jaw cylinders, and each of the clamping jaw cylinders independently drives one of the clamping jaws to clamp the hose.

[0010] Preferably, the clamping jaws include a left jaw and a right jaw for clamping together, and a left clamping member and a right clamping member are provided at the ends of the left jaw and the right jaw respectively in parallel, the left clamping member is provided with a left notch, and the right clamping member is provided with a right notch, the left notch and the right notch correspond to each other and are arranged in a staggered height, and when clamping, the two notches are staggered and overlapped with each other to form a clamping opening for restricting the hose.

[0011] Preferably, the left notch and the right notch are triangles of the same shape, and when clamped, the two will be misaligned to form a diamond-shaped clamping opening.

[0012] Preferably, the left claw is provided with at least two parallel left clamping members, and the right claw is provided with at least two parallel right clamping members. When clamping, at least two of the left clamping members and at least two of the right clamping members are staggered and overlapped with each other, so that the multiple left notches and right notches form a clamping space in the vertical direction to restrict the hose.

[0013] Preferably, the vertical movement mechanism comprises a first motor, a rack, a first slide rail, and a first slider;

[0014] The first motor is fixed on the back side of the fixed plate, the fixed plate is provided with a through hole, the output shaft of the first motor passes through the through hole and is placed on the front side of the fixed plate and is connected to a gear, the gear is meshed with the rack, the first motor drives the rack to perform upgrading movement in the vertical direction, the rack is fixedly connected to the first slider through a first connecting block, the first slider is slidably arranged on the first slide rail, the first slide rail is vertically arranged on the side of the fixed plate, and the clamping mechanism is installed on the first slider.

[0015] Preferably, a photoelectric switch is installed on the top of the side of the fixed plate, and the photoelectric switch is arranged above the top of the first slide rail. The top of the rack is provided with a limit block for cooperating with the photoelectric switch to limit the position.

[0016] Preferably, a horizontal moving mechanism is provided at the bottom of the fixed plate, and the horizontal moving mechanism is provided with a mounting plate, and the mounting plate is placed below the fixed plate. A cutting knife assembly is provided on the mounting plate, and the cutting knife assembly moves left and right under the drive of the horizontal moving mechanism to cut the rubber hose led out by the tube needle above.

[0017] Preferably, a pipeline mold is provided at the bottom of the cutter assembly, and the pipeline mold is arranged on one side of the mounting plate. The pipeline mold is provided with a cavity for clamping and shaping the hose.

[0018] Preferably, the horizontal movement mechanism comprises a second motor, a screw rod, a nut seat, a second slider, a second slide rail, and a second connecting block;

[0019] The second motor is fixed on the back side of the fixed plate, and the second motor drives the screw to rotate. The screw is laterally arranged in the horizontal direction. The nut seat is sleeved on the screw, and the nut seat is fixedly connected to the top of the second connecting block. The bottom of the second connecting block is fixedly connected to one end of the mounting plate. The second slider is fixed to one side of the second connecting block. The second slider is slidably arranged on the second slide rail, and the second slide rail is laterally arranged at the bottom of the fixed plate in the horizontal direction.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model provides a plurality of groups of aligned tube needles in two tube needle racks, which can be used for threading rubber tubes of different specifications at the same time. The rubber tubes of different specifications can be clamped by corresponding clamping jaws respectively, which effectively improves the production efficiency. At the same time, clamping openings are formed at the clamping jaws for limiting the clamping of the rubber tube, which strengthens the clamping space restriction of the rubber tube, can effectively prevent the rubber tube from deviating, and improves the production capacity and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of the pipe delivery mechanism.

[0023] Figure 2 It is a schematic diagram of the back structure of the pipe delivery mechanism.

[0024] Figure 3 It is a structural schematic diagram of the clamping mechanism.

[0025] Figure 4 This is a schematic diagram of the structure of the gripper cylinder driving the gripper.

[0026] Figure 5 for Figure 4 Schematic diagram from another angle.

[0027] Figure 6 This is a schematic diagram of the structure in which the cutting knife assembly and the pipeline mold are arranged on the mounting plate.

[0028] In the figure: a fixed plate 1, a tube needle rack 2, a tube needle 3, a clamping claw 4, a left clamping piece 401, a right clamping piece 402, a clamping mouth 5, a hose 6, a clamping claw cylinder 7, a first motor 8, a rack 9, a first slide rail 10, a first slider 11, a gear 12, a photoelectric switch 13, a limit stopper 14, a mounting plate 15, a cutting knife assembly 16, a pipeline mold 17, a second motor 18, a screw rod 19, a nut seat 20, a second slider 21, a second slide rail 22, and a second connecting block 23. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element in the middle. The terms "one side", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements. Example 1

[0033] See also Figure 1-Figure 2 , this embodiment provides a pipe delivery mechanism, including a fixing plate 1;

[0034] Two tube needle racks 2 vertically aligned up and down are arranged on the front of the fixing plate 1, and three tube needles 3 are arranged on the tube needle racks 2. The three tube needles 3 on the two tube needle racks 2 correspond vertically to each other and are coaxially arranged, and the two tube needles 3 corresponding to each other up and down form a tube needle group, that is, there are three tube needle groups in total;

[0035] A vertical moving mechanism and a clamping mechanism driven by the vertical moving mechanism to be raised and lowered are provided on the right side of the fixed plate 1. The stroke of the clamping mechanism is between the two tube needle racks 2. The clamping mechanism is provided with three clamping jaws 4. The number of the clamping jaws 4 is consistent with the number of the tube needle groups and is arranged accordingly, that is, each clamping jaw 4 corresponds to a tube needle group. The end of the clamping jaw 4 is provided with a clamping opening 5 for clamping the rubber tube 6 inserted between the two tube needles 3 in the same group.

[0036] It should be noted that, in this embodiment, the tube needle 3 is a hollow tubular structure in the middle for passing the rubber hose 6 .

[0037] During operation, the rubber hose 6 is pulled from the external device to the tube needle 3 of the upper tube needle rack 2, passes through the upper tube needle 3 and then passes out from the tube needle 3 of the same group on the lower tube needle rack 2, and then the clamping jaws 4 in the clamping mechanism are driven to make the clamping jaws 5 of the clamping jaws 4 clamp the rubber hose 6, and then the vertical moving mechanism is driven to drive the clamping mechanism to move downward between the two tube needle racks 2, so that the rubber hose 6 is pulled downward, and the end of the rubber hose 6 protrudes a section below the lower tube needle 3, wherein the protruding length of the rubber hose 6 is determined by the moving stroke of the vertical moving mechanism, and the stroke can be set according to the pin length of the transformer that needs to be threaded, so that the length of the protruding rubber hose 6 is adapted, and finally the protruding section of the rubber hose 6 is cut off and the next step of the threading process is carried out.

[0038] In this embodiment, by having at least two groups of tube needle groups, it is possible to support at least two specifications of hoses 6 for simultaneous transportation, thereby solving the efficiency problem of the current transformer production equipment with a single tube delivery and the problem that the equipment is difficult to achieve diversified production, thereby improving efficiency; at the same time, at least two hoses 6 can be clamped by corresponding jaws 4 respectively, and a clamping opening 5 is formed at the jaws 4 for limiting the clamping of the hose 6, thereby strengthening the clamping space limitation of the hose 6, effectively preventing the hose 6 from deviating, and improving the production capacity and yield rate.

[0039] See also Figure 3-Figure 5The clamping mechanism is provided with three parallel clamping cylinders 7, each of which independently drives one of the clamping jaws 4 to clamp the hose 6, and the length of the clamping jaws 4 decreases from top to bottom, so that the three clamping jaws 4 correspond to the three hoses 6 arranged from left to right, respectively. There is a gap in the middle of each clamping jaw 4, so that the hose 6 can pass through without obstruction, and the clamping actions of the three clamping jaws 4 are not affected by each other. The clamping jaws 4 include a left jaw and a right jaw for clamping, and the ends of the left jaw and the right jaw are provided with a parallel left clamping member 401 and a right clamping member 402, respectively. The left clamping member 401 is provided with a left notch, and the right clamping member 402 is provided with a right notch. The left notch corresponds to the right notch and is staggered in height. When clamping, the two notches overlap and overlap to form a clamping opening 5 for restricting the hose 6. Among them, the left notch and the right notch are triangles of the same shape, and the two will be staggered to form a diamond-shaped clamping opening 5 when clamping.

[0040] See also Figure 4 In order to further enhance the stability of clamping, the left jaw is provided with at least two parallel left clamping members 401, and the right jaw is also provided with at least two parallel right clamping members 402. When clamping, the at least two left clamping members 401 and the at least two right clamping members 402 overlap each other, so that the plurality of left notches and right notches form a diamond-shaped clamping space in the vertical direction to restrict the rubber hose 6.

[0041] The clamping jaws 4 of this example cooperate with the notches provided on the left and right to form a clamping opening 5 of a diamond-shaped space structure, which can effectively restrict the hose 6 on the basis of clamping the hose 6, thereby preventing the hose 6 from deviating and ensuring the accuracy of clamping the hose 6.

[0042] In this example, the clamp 5 with a diamond-shaped spatial structure is used to prevent deviation by utilizing the diamond-shaped structure and the circular shape of the hose 6, which is better than an arc-shaped clamp. The hose 6 is not prone to self-rotation when clamped, which effectively prevents the hose 6 from deviating when clamped.

[0043] In this example, if it is necessary to clamp the rubber tube 6 in a certain tube needle group, the clamping jaw cylinder 7 of the corresponding clamping jaw 4 can be driven, which is convenient for flexible selection in production.

[0044] See also Figure 1 and Figure 2 , the vertical moving mechanism includes a first motor 8, a rack 9, a first slide rail 10, and a first slider 11;

[0045] The first motor 8 is fixed on the back side of the fixed plate 1. The fixed plate 1 is provided with a through hole. The output shaft of the first motor 8 passes through the through hole and is placed on the front side of the fixed plate 1 and is connected to a gear 12. The gear 12 is engaged with the rack 9. The first motor 8 drives the rack 9 to perform upgrading movement in the vertical direction. The rack 9 is fixedly connected to the first slider 11 through a first connecting block. The first slider 11 is slidably set on the first slide rail 10. The first slide rail 10 is vertically set on the side of the fixed plate 1. The clamping mechanism is installed on the first slider 11.

[0046] When the clamping mechanism is driven to move up and down, the first motor 8 is driven, and the first motor 8 drives the rack 9 to move up and down through the gear 12. The rack 9 drives the first slider 11 to slide up and down on the first slide rail 10 through the first connecting block, thereby driving the clamping mechanism to move up and down through the first slider 11.

[0047] This embodiment adopts the driving mode of the gear 12 and the rack 9, so the structure is more stable and the service life is longer.

[0048] See also Figure 1 In order to prevent the rack 9 from moving excessively, a photoelectric switch 13 is installed on the top of the side of the fixed plate 1 in this embodiment. The photoelectric switch 13 is arranged above the top of the first slide rail 10, and a limit stopper 14 is arranged on the top of the rack 9 to cooperate with the photoelectric switch 13 to limit the position. When the rack 9 is driven to move up and down, when the limit stopper 14 is placed in the light gate of the photoelectric switch 13, it indicates that the rack 9 has risen to the limit position, triggering the first motor 8 to stop, so that the rack 9 stops rising, and a protection effect is provided for the rack 9.

[0049] See also Figure 1 , Figure 2 and Figure 6 A horizontal moving mechanism is provided at the bottom of the fixed plate 1, and the horizontal moving mechanism is provided with a mounting plate 15. The mounting plate 15 is placed below the fixed plate 1, and a cutting knife assembly 16 is provided on the mounting plate 15. The cutting knife assembly 16 moves left and right under the drive of the horizontal moving mechanism to cut the rubber tube 6 led out from the tube needle 3 above.

[0050] During operation, when the upper vertical moving mechanism drives the clamping mechanism's jaws 4 to descend, the portion of the hose 6 clamped by the jaws 4 protrudes from the lower tube needle 3. At this time, the cutting knife assembly 16 needs to be moved to the bottom of the corresponding tube needle 3 through the horizontal moving mechanism to cut the protruding portion of the hose 6 so that the cut hose section can be used for the subsequent tube threading process.

[0051] In this embodiment, the cutting knife assembly 16 is precisely moved by the horizontal moving mechanism, so that the cutting knife assembly 16 can quickly cut the rubber tube 6, thereby ensuring the accuracy and stability in the production process, which helps to improve production efficiency and product quality.

[0052] In this embodiment, the cutter assembly 16 is generally driven by a cylinder to cut the rubber hose crosswise.

[0053] See also Figure 6 A pipeline mold 17 is provided at the bottom of the cutting knife assembly 16 . The pipeline mold 17 is arranged on one side of the mounting plate 15 . The pipeline mold 17 is provided with a cavity for clamping and shaping the hose 6 .

[0054] In order to facilitate the subsequent pipe threading process to be more efficient, the present embodiment can set the cavity of the pipeline mold 17 according to the pins of the transformer to be threaded. The pipeline mold 17 in this example is installed on the mounting plate 15 together with the cutter assembly 16, and is arranged directly below the cutter assembly 16. After the hose 6 is pulled out, the hose 6 is placed in the cavity of the fixed mold of the pipeline mold 17. At this time, the cylinder is driven to make the movable mold cooperate with the fixed film, so that the pipeline mold 17 clamps the hose 6. At the same time, after clamping, the cylinder of the cutter assembly 16 drives the blade to cross-cut the hose 6. At this time, the cut parts of the hose 6 are placed in the pipeline mold 17 for clamping and shaping for a period of time, and then used in the subsequent pipe threading process. By setting the pipeline mold 17, the production efficiency is effectively improved.

[0055] See also Figure 2 The horizontal moving mechanism includes a second motor 18, a screw rod 19, a nut seat 20, a second slider 21, a second slide rail 22, and a second connecting block 23;

[0056] The second motor 18 is fixed on the back side of the fixed plate 1, and the second motor 18 drives the screw rod 19 to rotate. The screw rod 19 is arranged horizontally in the horizontal direction. The nut seat 20 is sleeved on the screw rod 19, and the nut seat 20 is fixedly connected to the top of the second connecting block 23. The bottom of the second connecting block 23 is fixedly connected to one end of the mounting plate 15. The second slider 21 is fixed to one side of the second connecting block 23. The second slider 21 is slidably arranged on the second slide rail 22. The second slide rail 22 is arranged horizontally at the bottom of the fixed plate 1.

[0057] During operation, the second motor 18 is driven, and the second motor 18 drives the nut seat 20 through the screw rod 19. Since the nut seat 20 is fixedly connected to the second slider 21 through the second connecting block 23, the second slider 21 slides on the second slide rail 22, that is, the second slider 21 limits the rotational movement of the nut seat 20. When the second motor 18 drives the screw rod 19, the nut seat 20 moves horizontally, thereby driving the second slider 21 to move horizontally on the second slide rail 22. At this time, the mounting plate 15 placed at the bottom of the second connecting block 23 moves horizontally synchronously, so that the cutting knife assembly 16 and the pipeline mold 17 thereon can be moved to the bottom of the hose 6 that needs to be cut and clamped, so as to facilitate cutting and clamping of the hose 6 for finalizing.

[0058] In this embodiment, in order to facilitate the rubber hose 6 to enter the upper tube needle 3 more quickly and conveniently, a guide frame (not shown in the figure) can be further provided on the top of the upper tube needle frame 2 to facilitate the externally transported rubber hose 6 to be quickly guided through the tube needle 3 through the guide frame, thereby improving production efficiency.

[0059] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pipe delivery mechanism, characterized in that: comprising a fixing plate (1); The fixing plate (1) is provided with two vertically aligned tube needle racks (2), and the tube needle racks (2) are provided with at least two tube needles (3), the multiple tube needles (3) on the two tube needle racks (2) correspond vertically to each other and are coaxially arranged, and the two tube needles (3) corresponding to each other above and below form a tube needle group; A vertical moving mechanism and a clamping mechanism driven by the vertical moving mechanism to be raised and lowered are provided on one side of the fixing plate (1); the travel of the clamping mechanism is between the two tube needle racks (2); the clamping mechanism is provided with at least two clamping claws (4); the number of the clamping claws (4) is consistent with the number of the tube needle groups and is arranged accordingly; the end of the clamping claw (4) is provided with a clamping opening (5) for clamping a rubber tube (6) inserted between two tube needles (3) in the same group.

2. The pipe delivery mechanism according to claim 1, characterized in that: The clamping mechanism is provided with at least two clamping claw cylinders (7) arranged in parallel, and each of the clamping claw cylinders (7) independently drives one of the clamping claws (4) to clamp the rubber hose (6).

3. The pipe delivery mechanism according to claim 2, characterized in that: The clamping jaw (4) comprises a left jaw and a right jaw for clamping together. A left clamping piece (401) and a right clamping piece (402) are arranged in parallel at the ends of the left jaw and the right jaw. The left clamping piece (401) is provided with a left notch, and the right clamping piece (402) is provided with a right notch. The left notch and the right notch correspond to each other and are arranged in a staggered manner. When clamping, the two notches overlap and intersect with each other to form a clamping opening (5) for restricting the rubber hose (6).

4. The pipe delivery mechanism according to claim 3, characterized in that: The left notch and the right notch are triangular in shape and are displaced to form a diamond-shaped clamping opening (5) when clamped.

5. The pipe delivery mechanism according to claim 3 or 4, characterized in that: The left claw is provided with at least two parallel left clamping members (401), and the right claw is provided with at least two parallel right clamping members (402). When clamping, at least two of the left clamping members (401) and at least two of the right clamping members (402) overlap each other in an interlaced manner, so that the plurality of left notches and right notches form a clamping space in the vertical direction to restrict the rubber hose (6).

6. The pipe delivery mechanism according to claim 1, characterized in that: The vertical movement mechanism comprises a first motor (8), a rack (9), a first slide rail (10), and a first slide block (11); The first motor (8) is fixed on the back side of the fixed plate (1); the fixed plate (1) is provided with a through hole; the output shaft of the first motor (8) passes through the through hole and is placed on the front side of the fixed plate (1) and is connected to a gear (12); the gear (12) is meshed with the rack (9); the first motor (8) drives the rack (9) to perform an upgrading movement in a vertical direction; the rack (9) is fixedly connected to the first slider (11) via a first connecting block; the first slider (11) is slidably arranged on the first slide rail (10); the first slide rail (10) is vertically arranged on the side of the fixed plate (1); and the clamping mechanism is mounted on the first slider (11).

7. The pipe delivery mechanism according to claim 6, characterized in that: A photoelectric switch (13) is installed on the top of the side of the fixed plate (1), and the photoelectric switch (13) is arranged above the top of the first slide rail (10). A limit stopper (14) is provided on the top of the rack (9) for cooperating with the photoelectric switch (13) to limit the position.

8. The pipe delivery mechanism according to claim 1, characterized in that: A horizontal moving mechanism is provided at the bottom of the fixed plate (1), and the horizontal moving mechanism is provided with a mounting plate (15). The mounting plate (15) is placed below the fixed plate (1), and a cutting knife assembly (16) is provided on the mounting plate (15). The cutting knife assembly (16) moves left and right under the drive of the horizontal moving mechanism to cut the rubber tube (6) passed through the tube needle (3) above.

9. The pipe delivery mechanism according to claim 8, characterized in that: A pipeline mold (17) is provided at the bottom of the cutting knife assembly (16). The pipeline mold (17) is arranged on one side of the mounting plate (15). The pipeline mold (17) is provided with a cavity for clamping and shaping the rubber hose (6).

10. The pipe delivery mechanism according to claim 8, characterized in that: The horizontal movement mechanism comprises a second motor (18), a screw rod (19), a nut seat (20), a second sliding block (21), a second sliding rail (22), and a second connecting block (23); The second motor (18) is fixed on the back side of the fixed plate (1), and the second motor (18) drives the screw rod (19) to rotate. The screw rod (19) is arranged horizontally in the horizontal direction. The nut seat (20) is sleeved on the screw rod (19). The nut seat (20) is fixedly connected to the top of the second connecting block (23). The bottom of the second connecting block (23) is fixedly connected to one end of the mounting plate (15). The second sliding block (21) is fixed to one side of the second connecting block (23). The second sliding block (21) is slidably arranged on the second slide rail (22). The second slide rail (22) is arranged horizontally at the bottom of the fixed plate (1) in the horizontal direction.

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