CN219807504U - Welding strip processing take-up reel quick replacement structure - Google Patents

Abstract

The utility model provides a rapid replacement structure of a welding strip processing take-up reel, which belongs to the technical field of welding strip processing and comprises a base, wherein the top of the base is provided with a mounting plate, the right side wall of the mounting plate is provided with an L-shaped plate, the L-shaped plate is fixedly provided with a rotating motor, the output end of the rotating motor penetrates through the mounting plate and is fixedly connected with a turntable, the other end of the turntable is fixedly connected with a roll shaft, the outer side wall of the roll shaft is slidably connected with the take-up reel, the roll shaft and the take-up reel are detachably connected through a disassembly assembly, and a push-out assembly is arranged between the take-up reel and the turntable. The utility model solves the problems that when the existing welding strip processing take-up reel replacement structure is used for replacing the take-up reel, a worker needs to exert great effort to unscrew the threaded sleeve, so that the change of the take-up reel is very slow, time and labor are wasted, and the work efficiency of the worker is reduced.

Description

Welding strip processing take-up reel quick replacement structure

Technical Field

The utility model belongs to the technical field of welding strip processing, and particularly relates to a rapid replacement structure of a welding strip processing take-up reel.

Background

The weld strap is used as a filler metal or as a metal welding material for simultaneous electrical conduction, and is used as a filler metal in gas and tungsten arc welding, and is used as a filler metal and as an electrical conductive electrode in submerged arc welding, electroslag welding, and other gas metal arc welding. Welding strip is usually coiled on the take-up reel to facilitate the use and transportation, when welding strip receives the line, cup joint the take-up reel in the outside of roller usually, the roller rotates and drives the take-up reel and rotate, thereby is convenient for weld the strip and carries out the rolling, in the receipts line course of working of welding strip, after the sufficient welding strip of rolling on the take-up reel, need to change new take-up reel and continue to receive the line, the change of take-up reel is very frequent.

The existing welding strip processing take-up reel replacement structure generally uses the thread bush to fasten the take-up reel, so that the take-up reel is fastened and fixed on the outer side of the roll shaft, and therefore the thread bush needs to be screwed when the take-up reel is installed, so that the take-up reel is prevented from sliding relative to the roll shaft in the wire taking-up process, but a worker needs to take great effort to unscrew the thread bush when the take-up reel is replaced, so that the change of the take-up reel is very slow, time and labor are wasted, and the work efficiency of the worker is reduced.

Disclosure of Invention

The utility model provides a rapid replacement structure of a welding strip processing take-up reel, which aims to solve the problems that the conventional rapid replacement structure of the welding strip processing take-up reel usually uses a thread bush to fasten and clamp the take-up reel, so that the take-up reel is fastened and fixed on the outer side of a roll shaft, the thread bush needs to be screwed when the take-up reel is installed, the take-up reel is prevented from sliding relative to the roll shaft in the wire taking-up process, but a worker needs to take great effort to unscrew the thread bush when the take-up reel is replaced, so that the change of the take-up reel is very slow, time and labor are wasted, and the work efficiency of the worker is reduced.

The embodiment of the utility model provides a rapid replacement structure of a welding strip processing take-up reel, which comprises a base, wherein the top of the base is provided with a mounting plate, the right side wall of the mounting plate is provided with an L-shaped plate, a rotating motor is fixedly installed on the L-shaped plate, the output end of the rotating motor penetrates through the mounting plate and is fixedly connected with a turntable, the other end of the turntable is fixedly connected with a roll shaft, the outer side wall of the roll shaft is slidably connected with the take-up reel, the roll shaft is detachably connected with the take-up reel through a disassembly assembly, and a push-out assembly is installed between the take-up reel and the turntable.

Further, a first groove is formed in the left side wall of the roller shaft, three through holes are uniformly formed in the inner peripheral wall of the first groove, the three through holes are formed around the central shaft of the roller shaft, a first sliding groove is formed in the two opposite side walls of the through holes, a second groove and a first cavity are formed in the inner peripheral wall of the take-up reel at positions corresponding to the through holes, and the second groove and the first cavity are communicated with each other.

Through adopting above-mentioned technical scheme, the setting of recess one is convenient for install slide bar one, and the setting of opening is convenient for joint and the slip of joint piece two of joint piece one, and the setting of spout one is convenient for the slip of slider, and the setting of recess two and cavity one is convenient for the slip of joint piece one.

Further, the dismouting subassembly includes sliding connection joint piece I in the recess II, sliding connection joint piece II in the opening and sliding connection slide bar I in the recess I, joint piece I's right-hand member is the inclined plane structure, just joint piece I's lower extreme extends to in the opening and contacts with joint piece II's top, joint piece I keeps away from one end fixedly connected with guide post I of roller, guide post I's the other end runs through and extends to in the cavity I and fixedly connected with limiting plate I, guide post I's outside cover is equipped with spring I, the both ends of spring I respectively with joint piece I and recess II's inner wall fixed connection, joint piece II's both ends are provided with the inclined plane that is central symmetry about, recess III has all been seted up to the position department that corresponds every opening on slide bar I, joint piece II's lower extreme and recess III joint, fixedly connected with slider on the both sides wall that joint piece II deviates from respectively, sliding connection and spout.

Through adopting above-mentioned technical scheme, when needs dismantle the take-up reel from the roller, pull slide bar one to the left, the inclined plane butt of the right-hand member of recess three when slide bar one removes and joint piece two, thereby make joint piece two direction removal of keeping away from slide bar one, and then make joint piece one's lower extreme shift out the opening, remove the restriction to the take-up reel, can pull the take-up reel left side and dismantle it from the roller, when needs install new take-up reel to the roller on, cup joint the take-up reel in the roller outside and remove the take-up reel right side, the inclined plane of joint piece one right-hand member and the left end face butt of roller, make joint piece one be the compression state in one direction of keeping away from the roller, when joint piece one moves to opening department, thereby drive joint piece one and move and with opening joint along with the automation of spring one, the movement of limiting take-up reel, simultaneously joint piece two promote joint piece and recess three joint, thereby realize the fastening installation of take-up reel, when needs install new take-up reel, quick change take-up reel, the quick response piece one can be guaranteed that the screw thread plate can be moved by one, the high-up reel has been avoided when setting up reel one, the high-speed joint piece has been changed, the problem of the line can be guaranteed in the setting up reel has been guaranteed in the quick response when the one has been set up of the screw thread, and can be guaranteed.

Further, a cavity II is reserved in the sliding rod I, a limiting plate II is connected in the cavity II in a sliding mode, a guide post II is fixedly connected to one end of the limiting plate II, the other end of the guide post II penetrates through the outer portion of the sliding rod I and is fixedly connected with the inner wall surface of the groove I, a spring II is sleeved on the outer side of the guide post II, two ends of the spring II are fixedly connected with the inner wall surfaces of the sliding rod I and the groove I respectively, and a handle is fixedly connected to one end, far away from the cavity II, of the sliding rod I.

Through adopting above-mentioned technical scheme, limiting plate two and guide post two's setting can prevent to pull slide bar one sliding bar one and drop, can carry out accurate spacing to slide bar one simultaneously, the joint of joint piece second and recess three of being convenient for, and spring two's setting is convenient for make slide bar one automatic re-setting, and the setting of handle is convenient for pull slide bar one.

Further, three butt joint blocks are uniformly arranged on the outer peripheral wall of the left end of the roller shaft, and a second chute which is in sliding fit with each butt joint block is formed in the inner peripheral wall of the take-up reel.

By adopting the technical scheme, the second groove and the position of the through hole are convenient to correspond, so that the installation of the take-up reel is facilitated.

Further, the ejecting assembly comprises a movable plate movably mounted between the take-up reel and the turntable, the left side wall of the movable plate is in butt joint with the take-up reel, a plurality of guide posts III are uniformly arranged on the right side wall of the movable plate, an external cylinder is connected to the outer peripheral wall of the guide posts III in a sliding mode, a limiting plate III is fixedly connected to one end of the guide posts III, located in the external cylinder, the right end of the external cylinder is fixedly connected with the turntable, springs III are sleeved on the outer sides of the external cylinder and the guide posts III, and two ends of the springs III are fixedly connected with the movable plate and the turntable respectively.

Through adopting above-mentioned technical scheme, when the take-up reel is installed on the roller, take-up reel and fly leaf butt and spring three are compressed state, and the restriction to the take-up reel is removed to joint piece one shift out the opening when dismantling the take-up reel, and spring three is automatic to rebound and promote the fly leaf for the take-up reel removes left, makes the dismantlement of take-up reel more convenient.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the dismounting component is arranged, when the take-up reel is required to be dismounted from the roll shaft, the sliding rod I is pulled leftwards, the side wall of the groove III is abutted with the inclined surface of the right end of the clamping block II when the sliding rod I moves, so that the clamping block I moves away from the sliding rod I, the lower end of the clamping block I moves out of the through hole, the limit on the take-up reel is relieved, the take-up reel can be pulled leftwards to be dismounted from the roll shaft, when a new take-up reel is required to be mounted on the roll shaft, the take-up reel is sleeved outside the roll shaft and moves the take-up reel rightwards, the inclined surface of the right end of the clamping block I is abutted with the left end surface of the roll shaft, the clamping block I moves away from the roll shaft in a compressed state at the moment, and drives the clamping block I to move and be clamped with the through hole along with the automatic extension of the spring I, the clamping block II pushes the clamping block II and the groove III to be clamped with the movement of the clamping block I, the take-up reel is limited, the take-up reel is convenient and quick to mount the take-up reel, when the new take-up reel is required to be mounted on the roll shaft, the left end is required to be mounted on the roll shaft, the first guide post is required to be replaced, the problem of a labor-saving can be solved, and the first labor-saving and a labor-saving workers can be greatly need to reset when the clamping block is required to be mounted on the wire carrier to replace the wire reel, and a screw-shaped guide plate and can be set up a labor-saved.

2. According to the utility model, the push-out assembly is arranged, when the take-up reel is mounted on the roller shaft, the take-up reel is abutted with the movable plate, the spring III is in a compressed state, the first clamping block moves out of the through hole to release the limit on the take-up reel when the take-up reel is dismounted, and the spring III automatically rebounds and pushes the movable plate, so that the take-up reel moves leftwards, and the take-up reel is more convenient to dismount.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a front cross-sectional structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of an embodiment of the present utility model;

fig. 3 is a schematic left-view structural diagram of a take-up reel according to an embodiment of the present utility model;

FIG. 4 is a schematic left-hand cross-sectional view of a removable component according to an embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1A according to an embodiment of the present utility model;

FIG. 6 is an enlarged schematic view of the structure of B in FIG. 1 according to an embodiment of the present utility model;

FIG. 7 is an enlarged schematic view of the structure of FIG. 1C according to an embodiment of the present utility model;

reference numerals: 1. a base; 2. a mounting plate; 3. an L-shaped plate; 4. a rotating motor; 5. a turntable; 6. a roll shaft; 7. a take-up reel; 8. disassembling and assembling the assembly; 9. a push-out assembly; 601. a groove I; 602. a through port; 603. a first chute; 701. a second groove; 702. a first cavity; 801. the first clamping block is connected with the second clamping block; 802. a first guide post; 803. a first limiting plate; 805. a first spring; 806. a second clamping block; 807. a limiting plate II; 808. a second guide post; 809. a cavity II; 810. a second spring; 811. a butt joint block; 812. a second chute; 813. a handle; 814. a first sliding rod; 815. a groove III; 816. a slide block; 901. a movable plate; 902. an external cylinder; 903. guide post III; 904. a third spring; 905. and a limiting plate III.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Referring to fig. 1-7, an embodiment of the utility model provides a rapid replacing structure for a welding strip processing take-up reel, which comprises a base 1, wherein a mounting plate 2 is arranged at the top of the base 1, an L-shaped plate 3 is arranged on the right side wall of the mounting plate 2, a rotating motor 4 is fixedly arranged on the L-shaped plate 3, the output end of the rotating motor 4 penetrates through the mounting plate 2 and is fixedly connected with a rotary disc 5, the other end of the rotary disc 5 is fixedly connected with a roll shaft 6, a groove one 601 is arranged on the left side wall of the roll shaft 6, three through holes 602 are uniformly arranged on the inner peripheral wall of the groove one 601, a sliding groove one 603 is arranged around the central shaft of the roll shaft 6, a groove two 701 and a cavity one 702 are respectively arranged on the two opposite side walls of the through holes 602, the groove two 701 and the cavity one 702 are respectively arranged on the inner peripheral wall of the take-up reel 7, the groove two 701 and the cavity one 702 are mutually communicated, the groove one 814 is conveniently arranged on the groove one 601, the through holes 602 are conveniently arranged to be convenient for the clamping of the clamping block one 801 and the sliding block two 806, the sliding block one 603 is conveniently arranged on the sliding block one 603, and the sliding block one 603 is conveniently arranged.

Referring to fig. 1-6, a take-up reel 7 is slidingly connected to the outer side wall of a roller shaft 6, the roller shaft 6 and the take-up reel 7 are detachably connected through a dismounting assembly 8, the dismounting assembly 8 comprises a first clamping block 801 slidingly connected to a second groove 701, a second clamping block 806 slidingly connected to a first through hole 602 and a first sliding rod 814 slidingly connected to a first groove 601, the right end of the first clamping block 801 is in a bevel structure, the lower end of the first clamping block 801 extends to the first through hole 602 and contacts with the top end of the second clamping block 806, one end of the first clamping block 801 far away from the roller shaft 6 is fixedly connected with a first guide column 802, the other end of the first guide column 802 extends to a first cavity 702 in a penetrating manner and is fixedly connected with a first limit plate 803, the outer side of the first guide column 802 is sleeved with a first spring 805, two ends of the first spring 805 are fixedly connected with the first clamping block 801 and the inner wall surface of the second groove 701 respectively, the left end and the right end of the second clamping block 806 are provided with bevels which are in central symmetry, a groove III 815 is formed in the peripheral wall of the sliding rod I814 at the position corresponding to each through hole 602, the lower end of the clamping block II 806 is clamped with the groove III 815, the two side walls deviating from the clamping block II 806 are respectively fixedly connected with a sliding block 816, the sliding block 816 is in sliding connection with the sliding groove I603, when the winding drum 7 needs to be detached from the roll shaft 6, the sliding rod I814 is pulled leftwards, the side wall of the groove III 815 is abutted with the inclined surface of the right end of the clamping block II 806 when the sliding rod I814 moves, so that the clamping block II 806 moves in the direction away from the sliding rod I814, the lower end of the clamping block I801 moves out of the through holes 602, the limitation on the winding drum 7 is removed, the winding drum 7 can be pulled leftwards to be detached from the roll shaft 6, when a new winding drum 7 needs to be installed on the roll shaft 6, the winding drum 7 is sleeved on the outer side of the roll shaft 6 and the winding drum 7 is moved rightwards, the inclined surface at the right end of the first clamping block 801 is abutted with the left end surface of the roller shaft 6, so that the first clamping block 801 moves in a direction away from the roller shaft 6, the first spring 805 is in a compressed state, when the first clamping block 801 moves to the through hole 602, the first clamping block 801 is driven to move along with the automatic extension of the first spring 805 and is clamped with the through hole 602 to limit the movement of the take-up reel 7, meanwhile, the first clamping block 801 pushes the second clamping block 806 to be clamped with the third groove 815, the fastening installation of the take-up reel 7 is realized, the disassembly and the installation of the take-up reel 7 are very convenient and quick, time and labor are saved, the problem that a worker needs to take a great force to unscrew a threaded sleeve when the take-up reel is replaced is avoided, the work efficiency of the worker is improved, meanwhile, the arrangement of the first guide post 802 and the limiting plate 803 can ensure that the first clamping block 801 moves linearly, the arrangement of the first spring 805 is convenient for the automatic reset of the first clamping block 801, a cavity II 809 is reserved in the sliding rod I814, a limiting plate II 807 is connected in the cavity II 809 in a sliding way, one end of the limiting plate II 807 is fixedly connected with a guide post II 808, the other end of the guide post II 808 penetrates through and extends to the outside of the sliding rod I814 and is fixedly connected with the inner wall surface of the groove I601, a spring II 810 is sleeved on the outer side of the guide post II 808, two ends of the spring II 810 are respectively fixedly connected with the inner wall surfaces of the sliding rod I814 and the groove I601, one end of the sliding rod I814 far away from the cavity II 809 is fixedly connected with a handle 813, the arrangement of the limiting plate II 807 and the guide post II 808 can prevent the sliding rod I814 from falling off when the sliding rod I814 is pulled, meanwhile, the sliding rod I814 can be accurately limited, the clamping connection of the clamping block II 806 and the groove III 815 is facilitated, the arrangement of the spring II 810 facilitates the automatic resetting of the sliding rod I814, the arrangement of the handle 813 facilitates the pulling of the sliding rod I814, three butting blocks 811 are uniformly arranged on the outer peripheral wall of the left end of the roller shaft 6, and a second chute 812 which is in sliding fit with each butting block 811 is formed on the inner peripheral wall of the take-up reel 7, so that the second grooves 701 are convenient to correspond to the positions of the through holes 602, and the take-up reel 7 is convenient to install.

Referring to fig. 1-2 and 7, a push-out assembly 9 is installed between a take-up reel 7 and a turntable 5, the push-out assembly 9 comprises a movable plate 901 movably installed between the take-up reel 7 and the turntable 5, the left side wall of the movable plate 901 is abutted to the take-up reel 7, a plurality of guide columns three 903 which are uniformly arranged are fixedly connected to the right side wall of the movable plate 901, an external cylinder 902 is slidably connected to the peripheral wall of the guide columns three 903, one end of the guide columns three 903 located in the external cylinder 902 is fixedly connected with a limiting plate three 905, the right end of the external cylinder 902 is fixedly connected with the turntable 5, a spring three 904 is sleeved outside the external cylinder 902 and the guide columns three 903, two ends of the spring three 904 are fixedly connected with the movable plate 901 and the turntable 5 respectively, when the take-up reel 7 is installed on a roll shaft 6, the take-up reel 7 is abutted to the movable plate 901, the spring three 904 is in a compressed state, the limit of the take-up reel 7 is removed from a through hole 602 when the take-up reel 7 is dismounted, the movable plate 901 is automatically rebounded, and the take-up reel 7 is pushed to move leftwards, and the take-up reel 7 is enabled to be convenient to be dismounted.

The implementation mode specifically comprises the following steps: when the winding disc 7 is required to be detached from the roll shaft 6, the sliding rod 814 is pulled leftwards, the side wall of the groove III 815 is abutted with the inclined surface of the right end of the clamping block II 806 when the sliding rod 814 moves, so that the clamping block II 806 moves away from the sliding rod I814, the lower end of the clamping block I801 moves out of the through hole 602, the restriction on the winding disc 7 is relieved, the spring III 904 automatically rebounds and pushes the movable plate 901, the winding disc 7 moves leftwards, the winding disc 7 can be pulled to be detached from the roll shaft 6, when a new winding disc 7 is required to be mounted on the roll shaft 6, the winding disc 7 is sleeved on the outer side of the roll shaft 6 and moves the winding disc 7 rightwards, the inclined surface of the right end of the clamping block I801 is abutted with the left end surface of the roll shaft 6, the clamping block I801 moves away from the roll shaft 6, at the moment, the spring I805 is in a compressed state, and when the clamping block I801 moves to the through hole 602, the spring I805 automatically stretches, so that the clamping block I801 moves and pushes the clamping block I801 to the through hole 602, and the winding disc 7 is fastened, and the winding disc 7 is simultaneously, and the winding disc 7 is prevented from moving.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a welding strip processing take-up reel quick replacement structure, includes base (1), its characterized in that, the top of base (1) is provided with mounting panel (2), be provided with L template (3) on the right side wall of mounting panel (2), fixed mounting has rotation motor (4) on L template (3), the output of rotation motor (4) runs through mounting panel (2) and fixedly connected with carousel (5), the other end fixedly connected with roller (6) of carousel (5), sliding connection has take-up reel (7) on the lateral wall of roller (6), can dismantle through dismouting subassembly (8) between roller (6) and take-up reel (7) and be connected, install between take-up reel (7) and carousel (5) and release subassembly (9).

2. The rapid replacement structure for a welding strip processing take-up reel of claim 1, wherein: the novel winding device is characterized in that a first groove (601) is formed in the left side wall of the roller shaft (6), three through holes (602) are uniformly formed in the inner peripheral wall of the first groove (601), three through holes (602) are formed around the central shaft of the roller shaft (6), a first sliding groove (603) is formed in the two opposite side walls of the through holes (602), a second groove (701) and a first cavity (702) are formed in the inner peripheral wall of the winding disc (7) at positions corresponding to the first through holes (602), and the second groove (701) and the first cavity (702) are mutually communicated.

3. The rapid replacement structure for a welding strip processing take-up reel according to claim 2, wherein: the dismounting assembly (8) comprises a clamping block I (801) which is slidably connected in the groove II (701), a clamping block II (806) which is slidably connected in the through hole (602) and a sliding rod I (814) which is slidably connected in the groove I (601), the right end of the clamping block I (801) is of an inclined surface structure, the lower end of the clamping block I (801) extends into the through hole (602) and is contacted with the top end of the clamping block II (806), one end of the clamping block I (801) far away from the roll shaft (6) is fixedly connected with a guide post I (802), the other end of the guide post I (802) penetrates through to extend into the cavity I (702) and is fixedly connected with a limiting plate I (803), the outer side of the guide post I (802) is sleeved with a spring I (805), the two ends of the spring I (805) are respectively fixedly connected with the inner wall surfaces of the clamping block I (801) and the groove II (701), the left end and the right end of the clamping block II (806) are respectively provided with a center inclined surface which is symmetrical, the two ends of the clamping block I (814) are respectively opposite to the two sides of the clamping block II (815) which are fixedly connected with the upper side walls of the groove II (815) and the three side walls of the sliding block II (815), the sliding block (816) is in sliding connection with the first sliding groove (603).

4. A rapid replacement structure for a ribbon-processing take-up reel as defined in claim 3, wherein: the novel sliding rod is characterized in that a cavity II (809) is reserved in the sliding rod I (814), a limiting plate II (807) is connected in the cavity II (809) in a sliding mode, a guide post II (808) is fixedly connected to one end of the limiting plate II (807), the other end of the guide post II (808) penetrates through the outer portion of the sliding rod I (814) and is fixedly connected with the inner wall surface of the groove I (601), a spring II (810) is sleeved on the outer side of the guide post II (808), two ends of the spring II (810) are fixedly connected with the inner wall surfaces of the sliding rod I (814) and the groove I (601) respectively, and one end, away from the cavity II (809), of the sliding rod I (814) is fixedly connected with a handle (813).

5. A rapid replacement structure for a ribbon-processing take-up reel as defined in claim 3, wherein: three butt joint blocks (811) are uniformly arranged on the outer peripheral wall of the left end of the roller shaft (6), and a second chute (812) which is in sliding fit with each butt joint block (811) is formed in the inner peripheral wall of the take-up reel (7).

6. The rapid replacement structure for a welding strip processing take-up reel of claim 1, wherein: the pushing-out assembly (9) comprises a movable plate (901) movably mounted between the take-up reel (7) and the rotary table (5), the left side wall of the movable plate (901) is in butt joint with the take-up reel (7), a plurality of guide posts three (903) which are uniformly arranged are fixedly connected to the right side wall of the movable plate (901), an external cylinder (902) is slidably connected to the peripheral wall of the guide posts three (903), one end of the guide posts three (903) located in the external cylinder (902) is fixedly connected with a limiting plate three (905), the right end of the external cylinder (902) is fixedly connected with the rotary table (5), springs three (904) are sleeved on the outer sides of the external cylinder (902) and the guide posts three (903), and two ends of each spring three (904) are fixedly connected with the movable plate (901) and the rotary table (5) respectively.