CN113188315A

CN113188315A - Automatic purging machine for superfine spinneret plate

Info

Publication number: CN113188315A
Application number: CN202110526309.4A
Authority: CN
Inventors: 高广东
Original assignee: Zhenjiang New Tide Precision Machinery Co ltd
Current assignee: Zhenjiang New Tide Precision Machinery Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-07-30

Abstract

The invention relates to the technical field of auxiliary devices for chemical fiber equipment after cleaning, and discloses an automatic blowing machine for a superfine spinneret plate. This superfine spinneret automatic purging machine, through starting top driving motor, make the top threaded rod rotate, again through being provided with the gag lever post, the motion of movable block has been restricted, make movable block accessible top screw thread through-hole and top threaded rod threaded connection and control, it controls to remove to drive electric cylinder, and then make dry air knife remove about can, can start high pressure positive blower simultaneously, make external air extracted, then get into air heater through the connecting pipe in, heat the air through air heater, then send into in the dry air knife through the intake pipe, control the removal of movable block in the cooperation.

Description

Automatic purging machine for superfine spinneret plate

Technical Field

The invention relates to the technical field of auxiliary devices for chemical fiber equipment after cleaning, in particular to an automatic blowing machine for a superfine spinneret plate.

Background

The spinneret plate can extrude a spinning solution into fiber bundles with certain thickness and shape through countless tiny pores, and is a key part for ensuring the fiber quality, the superfine spinneret plate is one kind of the spinneret plate, and the process is characterized in that one inch can reach 40 filament outlet holes at most, the minimum pore diameter can reach 0.2MM, the smoothness of the pore wall of the filament outlet hole is Ra0.12, and the high length-diameter ratio of the filament outlet hole is 1: 16, the smooth finish of the melt cavity can reach Ra0.4, can reach BFE95, BFE99 and N5 grades if being used for medical protective masks and medical protective clothing, has the advantages of bacteria prevention, dust prevention, no stuffiness and low respiratory resistance, the spinneret orifices on the spinneret plate are often blocked by impurities in the using process, thereby causing the problems of unfavorable filament discharge, filament breakage, more rigid blocks and the like, the impurities in the spinneret orifices can be effectively removed by cleaning, but chemical solvents and water vapor can remain in the spinneret orifices after cleaning, and if the cleaning is not carried out in time, the subsequent spinneret quality and the production efficiency can be adversely affected.

The prior drying method for cleaning the spinneret plate mainly comprises natural drying or manual blowing drying, wherein the cleaned spinneret plate is placed on a frame for natural drying during natural drying, and an operator holds a pressure air pipe to blow the spinneret plate one by one during manual blowing, so that the two methods have long operation period, low efficiency and uneven moisture blowing and drying, Chinese patent CN 105063770B discloses an automatic blowing machine for the spinneret plate, the automatic blowing machine can blow and dry a plurality of spinneret plates with different specifications simultaneously, can effectively prevent blown water drops from splashing, can be used for blowing and drying the spinneret plates with different thicknesses and blowing and air pressure requirements by adjusting the distance between an air outlet of an air knife and the upper surface of a workbench by using an adjusting bolt, but the blowing of the automatic blowing machine is cold air during blowing, is not beneficial to drying the spinneret plate, and is still during blowing, the blowing angle is fixed, other surfaces are difficult to blow, and the blowing efficiency needs to be improved, so that the automatic blowing machine for the superfine spinneret plate is provided to solve the problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the automatic purging machine for the superfine spinneret plate, which has the advantages of high purging efficiency and good effect, and solves the problems that cold air is used for purging, the drying of the spinneret plate is not facilitated, and meanwhile, the spinneret plate is not moved and the purging angle is fixed during purging, so that other surfaces are difficult to purge and the purging efficiency needs to be improved.

(II) technical scheme

In order to achieve the purposes of high purging efficiency and good effect, the invention provides the following technical scheme: an automatic blowing machine for superfine spinneret plates comprises a workbench, wherein a fixed frame is fixedly connected to the top of the workbench, a metal bin is fixedly connected to the right side of the fixed frame, a top driving motor is fixedly installed on the inner wall on the right side of the metal bin, an output shaft of the top driving motor is fixedly connected with a top threaded rod, one end of the top threaded rod penetrates through the fixed frame and extends into the fixed frame and is movably connected with the inner wall on the left side of the fixed frame, two limiting rods are fixedly connected between the inner walls on the left side and the right side of the fixed frame and are respectively positioned on the front side and the back side of the top threaded rod, movable blocks positioned on the outer sides of the two limiting rods are movably installed on the outer sides of the top threaded rod, an air cylinder is fixedly installed at the bottom of each movable block, a drying air knife is fixedly connected with the output shaft of the air cylinder, supporting legs are fixedly connected around the bottom of the workbench, and mounting plates are fixedly installed on the right sides of the two supporting legs positioned on the right side of the workbench, the right side of the mounting plate is fixedly provided with a high pressure fan, the right side of the mounting plate is fixedly provided with an air heater positioned at the top of the high pressure fan, the top of the high pressure fan is communicated with a connecting pipe communicated with the bottom of the air heater, the top of the air heater is communicated with an air inlet pipe, one end of the air inlet pipe penetrates through and extends into the fixing frame and is communicated with the right side of the drying air knife, the top of the workbench is provided with a rectangular through hole positioned in the fixing frame, the inner peripheral wall of the rectangular through hole is fixedly connected with a drying bin, four supporting legs are fixedly provided with a guide bin positioned outside the drying bin, four supporting plates are fixedly connected with each other, the top of each supporting plate is fixedly connected with a slide rail, the top of each supporting plate is movably provided with a collecting bin, the bottom of each collecting bin is fixedly connected with a slide block slidably connected with the slide rail, the back movable mounting of workstation has the quantity four and one end runs through and extends to the inside bottom threaded rod of dry storehouse, four the equal swing joint in front of bottom threaded rod has the movable plate, the back fixedly connected with quantity of movable plate two and with the telescopic link of the inner wall fixed connection at the dry storehouse back, the front swing joint of movable plate has the dwang, the front fixedly connected with second holding frame of dwang, the front movable mounting of dry storehouse has the initiative bull stick that one end runs through and extends to the inside of dry storehouse, the front movable mounting of dry storehouse has the quantity three and one end runs through and extends to the driven bull stick of dry storehouse inside, the equal fixedly connected with first holding frame in back of initiative bull stick and three driven bull stick, the front fixed mounting of dry storehouse has bottom driving motor, the equal fixedly connected with of periphery wall of initiative bull stick and three driven bull stick is located the positive drive sprocket of dry storehouse, and the outer sides of the four transmission chain wheels are movably connected with transmission chains.

Preferably, the shape of mount is an inverted U-shaped, the left side of movable block is seted up with top threaded through-hole of top threaded rod threaded connection.

Preferably, the left side of movable block is seted up quantity and is two and respectively with the first through-hole of two gag lever post looks adaptations, two gag lever post and top threaded rod all are the vertical form with the top of workstation.

Preferably, the air inlet pipe is a rubber hose, and second through holes matched with the air inlet pipe are formed in the bottom of the workbench and the right side of the fixing frame.

Preferably, the shape in dry storehouse is the rectangle that an inside fretwork and top and bottom all lacked, the shape in direction storehouse is the trapezoidal platform that falls that an inside fretwork and top and bottom are the disappearance, the shape in collection storehouse is the rectangle that an inside fretwork and top lacked.

Preferably, the back of the drying bin is provided with four bottom threaded through holes which are respectively in threaded connection with four bottom threaded rods, and the back of the workbench is provided with four third through holes which are respectively matched with the four bottom threaded rods.

Preferably, the third through hole is communicated with the bottom threaded through hole, the second clamping frame is L-shaped, and the second clamping frame is net-shaped.

Preferably, four first clamping frames are linearly distributed at equal intervals from left to right, and the first clamping frames are the same as the second clamping frames.

Preferably, the four second clamping frames are respectively symmetrical to the four first clamping frames, and an output shaft of the bottom driving motor is fixedly connected with the driving rotating rod.

(III) advantageous effects

Compared with the prior art, the invention provides an automatic blowing machine for a superfine spinneret plate, which has the following beneficial effects:

1. this superfine spinneret automatic purging machine, through starting top driving motor, make the top threaded rod rotate, again through being provided with the gag lever post, the motion of movable block has been restricted, make movable block accessible top screw through-hole and top threaded rod threaded connection and control and remove, drive electric cylinder and remove about, and then make dry air knife remove about, can start high pressure positive blower simultaneously, make external air extracted, then get into air heater in through the connecting pipe, heat the air through air heater, then send into in the dry air knife through the intake pipe, control removing of movable block in the cooperation, thereby realize the drying of sweeping to the spinneret, because the air is the air after being heated, so when sweeping, can accelerate the drying of spinneret, efficiency and effect of sweeping have been improved.

2. The automatic purging machine for the superfine spinneret plate comprises a first holding frame and a second holding frame, wherein the spinneret plate is placed on the first holding frame and the second holding frame, then a bottom threaded rod is rotated to enable the bottom threaded rod to move towards the front through being in threaded connection with a bottom threaded through hole, the position of a moving plate is limited through arranging a telescopic rod, further the moving plate moves towards the front, the first holding frame and the second holding frame can hold the spinneret plate, then a bottom driving motor can be started in the purging process to enable a driving rotating rod to rotate, three driven rotating rods and the driving rotating rod rotate together through arranging a transmission chain and a transmission chain wheel, further the clamped spinneret plate is driven to rotate, so that a drying air knife can purge different surfaces of the spinneret plate, further the purging efficiency of the spinneret plate is better, the purging effect is better, and purged water can fall into a collecting bin through a guide bin, then through slider and slide rail sliding connection and will collect the storehouse quick taking out, be convenient for carry out centralized processing to the water of collecting.

Drawings

Fig. 1 is a schematic structural view of an automatic purging machine for a superfine spinneret plate according to the present invention;

fig. 2 is a top view of a worktable of an automatic blowing machine for a micro spinneret plate according to the present invention.

In the figure: 1 workbench, 2 driving rotating rods, 3 transmission chains, 4 fixing frames, 5 limiting rods, 6 driven rotating rods, 7 top threaded rods, 8 drying air knives, 9 movable blocks, 10 metal bins, 11 top driving motors, 12 cylinders, 13 air inlet pipes, 14 air heaters, 15 connecting pipes, 16 high-pressure fans, 17 mounting plates, 18 rotating rods, 19 transmission chain wheels, 20 drying bins, 21 collecting bins, 22 sliding blocks, 23 supporting plates, 24 sliding rails, 25 supporting legs, 26 guiding bins, 27 moving plates, 28 telescopic rods, 29 bottom threaded rods, 30 first clamping frames, 31 second clamping frames, 32 rectangular through holes and 33 bottom driving motors.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an automatic purging machine for an ultrafine spinneret plate comprises a workbench 1, a fixed frame 4 is fixedly connected to the top of the workbench 1, the fixed frame 4 is in an inverted U shape, a metal bin 10 is fixedly connected to the right side of the fixed frame 4, a top driving motor 11 is fixedly installed on the inner wall of the right side of the metal bin 10, the type of the top driving motor 11 can be Y160M-4, an output shaft of the top driving motor 11 is fixedly connected with a top threaded rod 7, one end of the top threaded rod 7 penetrates through and extends into the fixed frame 4 and is movably connected with the inner wall of the left side of the fixed frame 4, two limiting rods 5 are fixedly connected between the inner walls of the left side and the right side of the fixed frame 4 and are respectively located on the front side and the back side of the top threaded rod 7, the two limiting rods 5 and the top threaded rod 7 are both vertical to the top of the workbench 1, a movable block 9 located on the outer side of the two limiting rods 5 is movably installed on the outer side of the top threaded rod 7, the left side of the movable block 9 is provided with a top threaded through hole in threaded connection with the top threaded rod 7, the left side of the movable block 9 is provided with two first through holes which are respectively matched with the two limiting rods 5, the bottom of the movable block 9 is fixedly provided with an air cylinder 12, the type of the air cylinder 12 can be SIJ, an output shaft of the air cylinder 12 is fixedly connected with a drying air knife 8, the periphery of the bottom of the workbench 1 is fixedly connected with supporting legs 25, the right sides of the two supporting legs 25 on the right side are fixedly provided with a mounting plate 17, the right side of the mounting plate 17 is fixedly provided with a high-pressure fan 16, the type of the high-pressure fan 16 can be YX-2, the right side of the mounting plate 17 is fixedly provided with an air heater 14 on the top of the high-pressure fan 16, the type of the air heater 14 can be ZT-GD, the top of the high-pressure fan 16 is communicated with a connecting pipe 15 communicated with the bottom of the air heater 14, the top of the air heater 14 is communicated with an air inlet pipe 13, one end of the air inlet pipe 13 penetrates through and extends into the fixed frame 4 and is communicated with the right side of the drying air knife 8, the air inlet pipe 13 is a rubber hose, the bottom of the workbench 1 and the right side of the fixed frame 4 are both provided with second through holes matched with the air inlet pipe 13, the top of the workbench 1 is provided with a rectangular through hole 32 positioned in the fixed frame 4, the inner peripheral wall of the rectangular through hole 32 is fixedly connected with a drying bin 20, the drying bin 20 is in a rectangular shape with hollow inside and missing top and bottom, a guide bin 26 positioned outside the drying bin 20 is fixedly installed among the four supporting legs 25, the guide bin 26 is in an inverted trapezoidal table with hollow inside and missing top and bottom, a supporting plate 23 is fixedly connected among the four supporting legs 25, the top of the supporting plate 23 is fixedly connected with a sliding rail 24, the collecting bin 21 is in a rectangular shape with hollow inside and missing top, the top of the supporting plate 23 is movably provided with a collecting bin 21, the bottom of the collecting bin 21 is fixedly connected with a slide block 22 which is in sliding connection with a slide rail 24, the back of the workbench 1 is movably provided with four bottom threaded rods 29, one end of each bottom threaded rod 29 penetrates through and extends into the drying bin 20, the back of the drying bin 20 is provided with four bottom threaded through holes which are respectively in threaded connection with the four bottom threaded rods 29, the back of the workbench 1 is provided with four third through holes which are respectively matched with the four bottom threaded rods 29, the third through holes are mutually communicated with the bottom threaded through holes, the front faces of the four bottom threaded rods 29 are respectively and movably connected with a movable plate 27, the back of the movable plate 27 is fixedly connected with two telescopic rods 28 which are fixedly connected with the inner wall of the back of the drying bin 20, each telescopic rod 28 is composed of a sleeve rod and a moving rod, one end of the moving rod penetrates through and extends into the sleeve rod, the outer side of the moving rod is fixedly connected with a limiting block positioned in the loop bar, one side of the loop bar is provided with a through hole matched with the moving rod, the moving rod is prevented from being separated from the loop bar in the moving process by the limiting block, the front of the moving plate 27 is movably connected with a rotating rod 18, the front of the rotating rod 18 is fixedly connected with a second clamping frame 31, the second clamping frame 31 is in an L shape, the second clamping frame 31 is in a net shape, the front of the drying bin 20 is movably provided with three driving rotating rods 2, one ends of the driving rotating rods 2 penetrate through and extend to the inside of the drying bin 20, the front of the drying bin 20 is movably provided with three driven rotating rods 6, the back of the driving rotating rods 2 and the back of the three driven rotating rods 6 are fixedly connected with first clamping frames 30, the four first clamping frames 30 are distributed to the right in a linear equidistant manner, the first clamping frames 30 are identical to the second clamping frames 31, the four second holding frames 31 are respectively symmetrical to the four first holding frames 30, a bottom driving motor 33 is fixedly mounted on the front surface of the drying bin 20, the type of the bottom driving motor 33 can be Y160M-4, an output shaft of the bottom driving motor 33 is fixedly connected with the driving rotating rod 2, the peripheral walls of the driving rotating rod 2 and the three driven rotating rods 6 are fixedly connected with a transmission chain wheel 19 located on the front surface of the drying bin 20, the outer sides of the four transmission chain wheels 19 are movably connected with a transmission chain 3, electric elements appearing in the text are electrically connected with an external main controller and 220V mains supply, and the main controller can play a role of controlling conventional known equipment for computers and the like, and the existing disclosed power connection technology is not repeated in the text.

In conclusion, the automatic purging machine for the superfine spinneret plate enables the top threaded rod 7 to rotate by starting the top driving motor 11, limits the movement of the movable block 9 by arranging the limiting rod 5, enables the movable block 9 to move left and right by being in threaded connection with the top threaded rod 7 through the top threaded through hole, drives the electric cylinder 12 to move left and right, further, the drying air knife 8 can move left and right, and simultaneously the high pressure fan 16 can be started, so that the outside air is extracted, and then, enters the air heater 14 through the connection pipe 15, heats the air by the air heater 14, then the air is sent into a drying air knife 8 through an air inlet pipe 13 and matched with the left and right movement of a movable block 9, thereby realizing the blowing and drying of the spinneret plate, because the air is heated, the drying of the spinneret plate can be accelerated during blowing, and the blowing efficiency and effect are improved.

In addition, by placing the spinneret plate on the first holding frame 30 and the second holding frame 31, then rotating the bottom threaded rod 29, the bottom threaded rod 29 can move towards the front by being connected with the bottom threaded through hole through threads, and by being provided with the telescopic rod 28, the position of the moving plate 27 is limited, and then the moving plate 27 moves towards the front, so that the first holding frame 30 and the second holding frame 31 can hold the spinneret plate, then in the purging process, the bottom driving motor 33 can be started, the driving rotating rod 2 rotates, through being provided with the driving chain 3 and the driving chain wheel 19, the three driven rotating rods 6 and the driving rotating rod 2 rotate together, and further the clamped spinneret plate is driven to rotate, so that the drying air knife 8 can purge different surfaces of the spinneret plate, further the purging efficiency of the spinneret plate is better, the effect is better, and the purged water can fall into the collecting bin 21 through the guiding bin 26, then through slider 22 and 24 sliding connection of slide rail and will collect the quick taking out in storehouse 21, be convenient for carry out centralized processing to the water of collecting, solved when sweeping, it is cold wind all to sweep, is unfavorable for the drying of spinneret, simultaneously when sweeping, the spinneret is motionless, sweeps the angle fixed, and difficult to have other faces to sweep, sweeps the efficiency and remain the problem that improves.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic machine that sweeps of superfine spinneret, includes workstation (1), its characterized in that: the top of the workbench (1) is fixedly connected with a fixing frame (4), the right side of the fixing frame (4) is fixedly connected with a metal bin (10), the inner wall on the right side of the metal bin (10) is fixedly provided with a top driving motor (11), one end of an output shaft of the top driving motor (11) is fixedly connected with a top threaded rod (7) which penetrates through the fixing frame (4) and extends to the inside of the fixing frame (4) and is movably connected with the left inner wall of the fixing frame (4), the number of the inner walls of the left side and the right side of the fixing frame (4) is two limiting rods (5) which are respectively positioned on the front surface and the back surface of the top threaded rod (7), the outer side of the top threaded rod (7) is movably provided with a movable block (9) which is positioned on the outer sides of the two limiting rods (5), the bottom of the movable block (9) is fixedly provided with an air cylinder (12), and the output shaft of the air cylinder (12) is fixedly connected with a drying air knife (8), the all-around fixed connection of workstation (1) bottom has supporting leg (25), is located two on the right side fixed mounting of supporting leg (25) has mounting panel (17), the right side fixed mounting of mounting panel (17) has high pressure positive blower (16), the right side fixed mounting of mounting panel (17) has air heater (14) that are located high pressure positive blower (16) top, the top intercommunication of high pressure positive blower (16) has connecting pipe (15) with the bottom intercommunication of air heater (14), the top intercommunication of air heater (14) has one end to run through and extend to the inside of mount (4) and intake pipe (13) with the right side intercommunication of dry air knife (8), rectangle through-hole (32) that are located the inside of mount (4) are seted up at the top of workstation (1), the internal perisporium fixed connection of rectangle through-hole (32) has dry storehouse (20), four guide bins (26) which are positioned outside the drying bin (20) are fixedly arranged between the four supporting legs (25), four supporting plates (23) are fixedly connected between the supporting legs (25), slide rails (24) are fixedly connected to the tops of the supporting plates (23), a collecting bin (21) is movably arranged at the top of the supporting plates (23), sliders (22) which are in sliding connection with the slide rails (24) are fixedly connected to the bottom of the collecting bin (21), four bottom threaded rods (29) are movably arranged at the back of the workbench (1), one ends of the four bottom threaded rods penetrate through and extend to the inside of the drying bin (20), a movable plate (27) is movably connected to the front of the four bottom threaded rods (29), two telescopic rods (28) are fixedly connected to the inner wall of the back of the drying bin (20), the front surface of the moving plate (27) is movably connected with a rotating rod (18), the front surface of the rotating rod (18) is fixedly connected with a second clamping frame (31), the front surface of the drying bin (20) is movably provided with a driving rotating rod (2) with one end penetrating and extending to the inside of the drying bin (20), the front surface of the drying bin (20) is movably provided with three driven rotating rods (6) with one ends penetrating and extending into the drying bin (20), the back surfaces of the driving rotating rod (2) and the three driven rotating rods (6) are fixedly connected with a first clamping frame (30), a bottom driving motor (33) is fixedly arranged on the front surface of the drying bin (20), the outer peripheral wall of the driving rotating rod (2) and the outer peripheral wall of the three driven rotating rods (6) are fixedly connected with transmission chain wheels (19) which are located on the front side of the drying bin (20), and the outer side of each transmission chain wheel (19) is movably connected with a transmission chain (3).

2. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: the shape of mount (4) is an inverted U-shaped, the top screw thread through-hole of threaded connection with top threaded rod (7) is seted up on the left side of movable block (9).

3. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: the left side of movable block (9) is seted up quantity and is two and respectively with the first through-hole of two gag lever post (5) looks adaptations, two gag lever post (5) and top threaded rod (7) all are the vertical form with the top of workstation (1).

4. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: intake pipe (13) are rubber hose, the second through-hole with intake pipe (13) looks adaptation is all seted up on the bottom of workstation (1) and the right side of mount (4).

5. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: the shape of drying storehouse (20) is the rectangle that an inside fretwork and top and bottom all lacked, the shape of direction storehouse (26) is the trapezoidal platform that falls that an inside fretwork and top and bottom are the disappearance, the shape of collecting storehouse (21) is the rectangle that an inside fretwork and top lacked.

6. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: the back of drying storehouse (20) is seted up quantity and is four and respectively with four bottom threaded rod (29) threaded connection's bottom screw through-hole, the third through-hole that quantity is four and respectively with four bottom threaded rod (29) looks adaptations is seted up to the back of workstation (1).

7. The automatic purging machine for the superfine spinneret plate according to claim 6, wherein: the third through hole is communicated with the bottom threaded through hole, the second clamping frame (31) is L-shaped, and the second clamping frame (31) is net-shaped.

8. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: the four first clamping frames (30) are linearly and equidistantly distributed from left to right, and the first clamping frames (30) are identical to the second clamping frames (31).

9. The automatic purging machine for the superfine spinneret plate according to claim 1, wherein: the four second clamping frames (31) are respectively symmetrical to the four first clamping frames (30), and an output shaft of the bottom driving motor (33) is fixedly connected with the driving rotating rod (2).