CN113602869A

CN113602869A - Ultra-width industrial cloth coating equipment

Info

Publication number: CN113602869A
Application number: CN202110970562.9A
Authority: CN
Inventors: 叶廷文
Original assignee: Foshan Gaoming Zhe Yi Machine Equipment Co ltd
Current assignee: Foshan Gaoming Zhe Yi Machine Equipment Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2021-11-05

Abstract

The invention discloses an ultra-wide industrial cloth coating device which comprises a coating device and a cutting device, wherein the cutting device is fixedly arranged at one end inside the coating device, the coating device comprises a blanking frame, a winding shaft, an arc-shaped receiving plate and a first driving motor, the arc-shaped receiving plate is welded at the center of the bottom inside the blanking frame, the first driving motor is fixedly arranged at the side edge of one end of the coating device, the winding shaft is rotatably arranged at the center edge of the upper part of one end of the coating device, and the blanking frame is slidably arranged at the bottom of one end face of the arc-shaped receiving plate. According to the invention, the inside of the cutting device can be extruded through the expansion of the diameter of the cloth blank roll, so that a cutting tool in the cutting device can automatically cut the cloth blank, and meanwhile, the cloth blank roll on the outer surface of the winding shaft can be rapidly fed by pulling the feeding frame, thereby improving the feeding efficiency of the cloth blank roll and the processing efficiency of coating the cloth blank.

Description

Ultra-width industrial cloth coating equipment

Technical Field

The invention relates to the technical field of industrial cloth coating equipment, in particular to ultra-wide industrial cloth coating equipment.

Background

According to the Chinese patent number: the invention relates to the technical field of industrial cloth production, in particular to an ultra-wide industrial cloth coating device which comprises a coating machine, wherein a coating roller is rotatably connected inside the coating machine, adjusting components are fixedly connected to two ends of the left side of the coating machine, each adjusting component comprises an adjusting box, a speed reducing motor is fixedly connected to the middle of the top of each adjusting box, an output shaft of each speed reducing motor is fixedly connected with a lead screw through a coupler, and the bottom of each lead screw penetrates through and extends into the adjusting box. According to the invention, the speed reducing motor drives the screw rod to rotate, the rotation motion can be converted into linear motion through the matching of the screw rod and the ball nut, so that the movable block vertically moves upwards, the cloth blank can be lifted upwards through the adjusting roller, and when the coating machine breaks down, the cloth blank can be separated from the top of the coating roller, so that the cloth blank is prevented from being adhered to the coating roller, the maintenance operation of the coating machine is facilitated, and the coating quality of the cloth blank is ensured.

When the surface of the cloth blank is coated, the chemical additives are required to be coated on the surface of the cloth blank, then the coated cloth blank is continuously transmitted for processing the next procedure, and after the coating of the cloth blank is finished, the cloth blank is required to be rolled, thereby being convenient for collecting and transporting the cloth blank.

However, the existing cloth blank coating equipment has some defects in the using process, such as: the existing cloth blank coating equipment is inconvenient for automatic cutting and blanking of the cloth blank finished by rolling and disassembling and replacing the cloth blank roll, thereby reducing the processing efficiency of the cloth blank coating, and needing the ultra-width industrial cloth coating equipment to solve the problems provided in the prior art.

Disclosure of Invention

The invention aims to provide an ultra-width industrial cloth coating device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the ultra-wide industrial cloth coating equipment comprises coating equipment and a cutting device, wherein the cutting device is fixedly arranged at one end inside the coating equipment, the coating equipment comprises a blanking frame, a winding shaft, an arc-shaped receiving plate and a first driving motor, the arc-shaped receiving plate is welded at the center of the bottom inside the blanking frame, the first driving motor is fixedly arranged at the side edge of one end of the coating equipment, the winding shaft is rotatably arranged at the center edge of the upper part of one end of the coating equipment, and the blanking frame is slidably arranged at the bottom of one end face of the arc-shaped receiving plate;

the cutting device comprises a limiting support frame, an extrusion device, a trigger frame and a cutting tool, wherein the cutting tool is slidably mounted in the center of the limiting support frame;

the inside of spacing support frame includes squeeze roll, second driving motor, cutting board and spacing, spacing welding is at one side bottom edge of spacing support frame, cutting board welding is at cutting device's inside bottom center, second driving motor fixed mounting is at the one end upper portion edge of spacing support frame, the squeeze roll rotates the terminal surface center of connecting at second driving motor.

Preferably, the inside of extrusion device includes spacing sleeve pipe, head rod, stripper plate, spliced pole, second connecting rod and first reset spring, spacing sleeve pipe evenly welds the surface at the head rod, the spliced pole slides and pegs graft at spacing sheathed tube inside center, the stripper plate welding is at the bottom face of spliced pole, the second connecting rod welding is at the top surface center of spliced pole, first reset spring slides and cup joints at the surface of spliced pole and is located spacing sheathed tube top.

Preferably, the inside of the trigger frame comprises a trigger rod, a guide frame, a plugging base plate and an inserting rod, the guide frame is symmetrically welded on two end faces of the trigger rod, the inserting rod is symmetrically welded on the bottom surface edges of two ends of the plugging base plate, and the inserting rod is slidably inserted in the center of the top surface of the guide frame.

Preferably, the center of the upper surface of the cutting plate is provided with an insertion groove, the edges of four corners of the bottoms of two ends of the cutting tool are welded with limit insertion rods, and a second reset spring is uniformly and fixedly mounted inside the insertion groove.

Preferably, the inner surfaces of the two ends of the limiting support frame are respectively provided with a first limiting jack, the two ends of the first connecting rod are fixedly connected with the two ends of the inside of the limiting support frame in an inserting mode through the limiting jacks, the top surface of the guide frame is provided with a second limiting jack, and the bottom end of the inserting rod is fixedly connected with a third reset spring.

Preferably, the stuffing base plate is located between the cutting plate and one side of the extrusion plate at the inner position of the limiting support frame, limiting slide ways are arranged on the upper surfaces of two ends of the limiting support frame, the bottom end of the guide frame is connected with the limiting support frame in a sliding mode through the limiting slide ways, and a fourth reset spring is fixedly connected to the edge of one end of the bottom of the guide frame.

Preferably, the second connecting rod contacts with the outer surface of the extrusion roller in the limiting support frame, fastening screws are spirally connected to the side edges of the two ends of the limiting support frame, and one end of the discharging frame is in sliding sleeve connection with the outer surface of the winding shaft.

Preferably, the side bottom edge of leading truck has seted up spacing spout, the marginal surface spiral connection in both ends of trigger bar has the threaded rod, the one end welding of threaded rod has the carousel.

Compared with the prior art, the invention has the following beneficial effects:

the cloth blank cutting device can provide a stable working environment for the extrusion device, the trigger frame and the cutting tool through the installation of the cutting device, wherein the limiting sleeve plays a role in limiting the lifting of the connecting column to ensure the stable lifting of the connecting column, the extrusion roller can circularly extrude the second connecting rod under the driving of the second driving motor, the first return spring pushes the second connecting rod to ascend and return when the second connecting rod is extruded, and the padding plate can play a role in a cushion block between the extrusion plate and the cutting tool, so that when the extrusion plate descends, the padding plate can extrude the cutting tool to descend to cut a cloth blank.

Rotation through the threaded rod is adjusted, can control the lateral sliding of trigger bar, thereby adjust the diameter to the cutting of cloth base book, simultaneously can make cutting device carry out the automated cutting to the cloth base book of size between the difference, thereby improve cutting device's practicality and application range, through the expansion to the diameter of cloth base book, can extrude cutting device's inside, thereby make the inside cutting tool of cutting device carry out the automated cutting to the cloth base, the work or material rest can carry out quick unloading to the cloth base book of rolling axle surface under the pulling simultaneously, thereby improve the efficiency of cloth base book unloading.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic structural view of the pasting device of the present invention;

FIG. 3 is a schematic view of a cutting device according to the present invention;

FIG. 4 is a cut-away schematic view of the cutting apparatus of the present invention;

FIG. 5 is a schematic view of the extrusion apparatus of the present invention;

FIG. 6 is a schematic exploded view of the extrusion apparatus of the present invention;

FIG. 7 is a schematic structural diagram of a trigger frame according to the present invention;

fig. 8 is a schematic structural diagram of a triggering frame according to a second embodiment of the present invention.

In the figure: 1-coating equipment, 2-cutting device, 3-blanking frame, 4-winding shaft, 5-arc-shaped bearing plate, 6-first driving motor, 7-limiting support frame, 8-extruding device, 9-triggering frame, 10-cutting tool, 11-extruding roller, 12-second driving motor, 13-cutting plate, 14-limiting frame, 15-limiting sleeve, 16-first connecting rod, 17-extruding plate, 18-connecting column, 19-second connecting rod, 20-first reset spring, 21-triggering rod, 22-guide frame, 23-plugging backing plate, 24-plugging rod, 25-limiting sliding groove, 26-rotating disc and 27-threaded rod.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention is further described below with reference to the accompanying drawings.

Example 1

Referring to fig. 1-7, an embodiment of the present invention is shown: an ultra-wide industrial cloth coating device comprises a coating device 1 and a cutting device 2, wherein the cutting device 2 is fixedly installed at one end inside the coating device 1, the coating device 1 comprises a blanking frame 3, a winding shaft 4, an arc-shaped receiving plate 5 and a first driving motor 6, the arc-shaped receiving plate 5 is welded at the center of the bottom inside the blanking frame 3, the first driving motor 6 is fixedly installed at the side edge of one end of the coating device 1, the winding shaft 4 is rotatably installed at the center edge of the upper part of one end of the coating device 1, and the blanking frame 3 is slidably installed at the bottom of one end face of the arc-shaped receiving plate 5;

the cutting device 2 comprises a limiting support frame 7, an extrusion device 8, a trigger frame 9 and a cutting tool 10, the cutting tool 10 is slidably mounted in the center of the limiting support frame 7, the extrusion device 8 is slidably mounted in the limiting support frame 7 and is positioned at the top end of the cutting tool 10, and the trigger frame 9 is slidably mounted in the cutting device 2 and is positioned at one side edge of the cutting tool 10;

the inside of spacing support frame 7 includes squeeze roll 11, second driving motor 12, cutting plate 13 and spacing 14, and spacing 14 welds at one side bottom edge of spacing support frame 7, and cutting plate 13 welds at the inside bottom center of cutting device 2, and second driving motor 12 fixed mounting is at the one end upper portion edge of spacing support frame 7, and squeeze roll 11 rotates the terminal surface center of connecting at second driving motor 12.

The inside of extrusion device 8 includes spacing sleeve 15, head rod 16, stripper plate 17, spliced pole 18, second connecting rod 19 and first reset spring 20, spacing sleeve 15 evenly welds the surface at head rod 16, spliced pole 18 slides and pegs graft at the inside center of spacing sleeve 15, stripper plate 17 welds the bottom face at spliced pole 18, second connecting rod 19 welds the top surface center at spliced pole 18, first reset spring 20 slides and cup joints at spliced pole 18's surface and is located the top of spacing sleeve 15.

The inside of the trigger frame 9 comprises a trigger rod 21, a guide frame 22, a plugging pad 23 and an inserting rod 24, wherein the guide frame 22 is symmetrically welded on two end faces of the trigger rod 21, the inserting rod 24 is symmetrically welded on the bottom surface edges of two ends of the plugging pad 23, and the inserting rod 24 is inserted in the center of the top surface of the guide frame 22 in a sliding manner.

The inserting groove has been seted up at cutting board 13's upper surface center, can play the limiting displacement to cutting tool 10 lift, and the edge all welds spacing inserted bar in the both ends bottom four corners of cutting tool 10, and the even fixed mounting in inside of inserting groove has second reset spring, can provide the power that rises and reset after cutting tool 10 descends.

First spacing jack has all been seted up to the both ends internal surface of spacing support frame 7, and the inside both ends of spacing jack and spacing support frame 7 are passed through mutually fixed grafting mutually in the both ends of head rod 16, and the spacing jack of second has been seted up to the top surface of leading truck 22, and the bottom fixedly connected with third reset spring of peg graft pole 24 can provide power for the rising of the backing plate 23 that plugs.

The packing backing plate 23 is located between one side of the cutting plate 13 and the extrusion plate 17 at the inner position of the limiting support frame 7, limiting slide ways are arranged on the upper surfaces of two ends of the limiting support frame 14, the bottom end of the guide frame 22 is clamped with the limiting support frame 14 in a sliding mode through the limiting slide ways, and a fourth reset spring is fixedly connected to the edge of one end of the bottom of the guide frame 22 and can provide power for sliding reset of the trigger rod 21.

Second connecting rod 19 contacts with the surface of squeeze roll 11 in the inside of spacing support frame 7, and the equal screwed connection in both ends side edge of spacing support frame 7 has fastening screw, and the one end of unloading frame 3 cup joints with the surface of rolling axle 4 mutually slides to when unloading frame 3, can extrude the base cloth book of rolling axle 4 surface, thereby be convenient for carry out the unloading to the base cloth book.

This embodiment is when implementing, diameter through the cloth base book increases, can extrude the inside trigger bar 21 of cutting device 2, can make trigger frame 9 at cutting device 2's inside lateral sliding, thereby drive the stripper plate 17 bottom that adds the backing plate 23 and remove the circulation and go up and down, thereby make stripper plate 17 extrude the upper surface of adding backing plate 23, the cutting tool 10 decline that adds backing plate 23 simultaneously can extrude the bottom surface, thereby cloth base after pasting under carries out can automatic cutting, thereby improve the work efficiency who scribbles the processing to cloth base.

Example 2

On the basis of embodiment 1, as shown in fig. 8, the bottom edge of the side surface of the guide frame 22 is provided with a limiting sliding groove 25, the outer surfaces of the edges of the two ends of the trigger rod 21 are spirally connected with a threaded rod 27, and one end of the threaded rod 27 is welded with a rotating disc 26.

In the implementation of the embodiment, the two ends of the trigger rod 21 can slide on the outer surface of the threaded rod 27 through the rotation adjustment of the threaded rod 27, and the position of the trigger rod 21 inside the bottom end of the guide frame 22 is changed, so that cloth blanks with different diameters can be automatically cut, and meanwhile, the application range of the trigger frame 9 can be expanded.

The working principle is as follows: when the cloth blank is coated and processed, the coating equipment 1, the first driving motor 6 and the second driving motor 12 need to be controlled to start and operate simultaneously, when the second driving motor 12 rotates, the extrusion roller 11 at one end can be driven to rotate synchronously, the outer surface of the extrusion roller 11 can extrude the outer surface of the second connecting rod 19 at the bottom, meanwhile, the second connecting rod 19 is extruded, the connecting column 18 at the outer surface can be driven to descend in the limiting sleeve 15, meanwhile, when the connecting column 18 descends, the first return spring 20 capable of extruding the outer surface contracts, when the connecting column 18 descends, the extrusion plate 17 at the bottom can be driven to descend together, when the extrusion roller 11 rotates for one circle, the outer surface of the second connecting rod 19 can be kept away, meanwhile, the connecting column 18 can ascend and reset under the elastic force of the first return spring 20, so when the extrusion roller 11 rotates for one circle, the extrusion plates 17 can synchronously complete one-time ascending and descending, therefore, under the continuous rotation of the extrusion roller 11, the extrusion plate 17 at the bottom end of the connecting column 18 can circularly lift, and when the pasting device 1 is started to operate, the surface of the fabric blank can be synchronously conveyed and pasted, one end of the coated fabric blank can be wound on the outer surface of the winding shaft 4, meanwhile, the first driving motor 6 can rotate to drive the winding shaft 4 to synchronously rotate, so as to wind the fabric blank at a uniform speed, under the continuous rotation of the winding shaft 4, the winding diameter of the fabric blank on the outer surface of the winding shaft 4 can be continuously enlarged until the fabric blank on the outer surface of the winding shaft 4 is contacted with the outer surface of the trigger rod 21, and along with the continuous enlargement of the fabric blank roll, the fabric blank roll can extrude the trigger rod 21 to transversely slide, the trigger rod 21 can slide to drive the guide frames 22 at the two ends to synchronously slide at the two inner ends of the limiting frame 14, and simultaneously, the bottom end of the guide frame 22 can extrude the fourth return spring inside the limiting frame 14 to contract, when the guide frame 22 slides, the top plugging backing plate 23 can be driven to transversely slide to a position between the upper surface of the limiting frame 14 and the bottom of the extrusion plate 17, when the extrusion plate 17 which circularly ascends and descends, the sliding plugging backing plate 23 can be extruded, when the plugging backing plate 23 is extruded and descends, the upper surface of the cutting tool 10 under the upper surface can be extruded, the cutting tool 10 can synchronously slide downwards, the cutting tool 10 can cut a fabric blank passing through the upper surface of the limiting frame 14, simultaneously, the guide frame 22 can trigger a travel switch in the limiting frame 14, so that the pasting equipment 1 and the first driving motor 6 can stop running, then one end of the blanking frame 3 is pulled to transversely slide, simultaneously, the other end of the blanking frame 3 can extrude a fabric blank roll on the outer surface of the winding shaft 4, simultaneously, the arc-shaped bearing plate 5 can move along with the blanking frame 3 until the fabric blank roll completely separates from the outer surface of the winding shaft 4, meanwhile, the cloth blank roll falls to the upper surface of the arc-shaped bearing plate 5 so as to bear the cloth blank roll, then the cloth blank roll is taken out, the lower material rack 3 is pushed to slide and reset, the coating device 1 can continue to operate while the cloth blank roll is separated from the outer surface of the winding shaft 4, meanwhile, the first driving motor 6 can continue to drive the winding shaft 4 to wind the cloth blank, the trigger frame 9 can slide and reset under the elastic action of a fourth reset spring, the plugging backing plate 23 is separated from a position between the extrusion plate 17 and the cutting plate 13 along with the sliding of the trigger frame 9, the plugging backing plate 23 can rise and reset under the elastic action of a third reset spring, then the next group of cloth blank rolls are continuously waited to be cut, the position of the trigger rod 21 can be adjusted according to the required diameter of the cloth blank roll, the rotary turntable 26 drives the threaded rod 27 to rotate in the limiting sliding chute 25, and can control the sliding of the trigger rod 21 on the outer surface of the threaded rod 27, thereby change the position of trigger bar 21 in leading truck 22 bottom to can change the scope of cloth base book diameter cutting, through the expansion to cloth base book diameter, can extrude cutting device 2's inside, thereby make cutting device 2 inside cutting tool 10 carry out automatic cutting to the cloth base, the work or material rest 3 can carry out quick unloading to the cloth base book of rolling axle 4 surface under the pulling simultaneously, thereby improve the efficiency of cloth base book unloading.

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 ultra-width industrial cloth coating equipment, includes coating equipment (1) and cutting device (2), its characterized in that: the cutting device (2) is fixedly installed at one end of the interior of the pasting equipment (1), the interior of the pasting equipment (1) comprises a blanking frame (3), a winding shaft (4), an arc-shaped receiving plate (5) and a first driving motor (6), the arc-shaped receiving plate (5) is welded at the center of the bottom of the interior of the blanking frame (3), the first driving motor (6) is fixedly installed at the edge of the side face of one end of the pasting equipment (1), the winding shaft (4) is rotatably installed at the edge of the center of the upper portion of one end of the pasting equipment (1), and the blanking frame (3) is slidably installed at the bottom of one end face of the arc-shaped receiving plate (5);

the inside of cutting device (2) includes spacing support frame (7), extrusion device (8), triggers frame (9) and cutting tool (10), cutting tool (10) slidable mounting is at the inside center of spacing support frame (7), extrusion device (8) slidable mounting just is located the top of cutting tool (10) in the inside of spacing support frame (7), trigger frame (9) slidable mounting just is located a side edge of cutting tool (10) in the inside of cutting device (2).

2. The ultra-wide industrial cloth coating apparatus of claim 1, wherein: the cutting device is characterized in that the limiting support frame (7) comprises an extrusion roller (11), a second driving motor (12), a cutting plate (13) and a limiting frame (14), the limiting frame (14) is welded at the bottom edge of one side of the limiting support frame (7), the cutting plate (13) is welded at the bottom center of the interior of the cutting device (2), the second driving motor (12) is fixedly installed at the upper edge of one end of the limiting support frame (7), the extrusion roller (11) is rotatably connected to the center of one end face of the second driving motor (12), the extrusion device (8) comprises a limiting sleeve (15), a first connecting rod (16), an extrusion plate (17), a connecting column (18), a second connecting rod (19) and a first reset spring (20), the limiting sleeve (15) is uniformly welded on the outer surface of the first connecting rod (16), and the connecting column (18) slides in the center of the limiting sleeve (15), the extrusion plate (17) is welded on the bottom end face of the connecting column (18), the second connecting rod (19) is welded on the center of the top face of the connecting column (18), and the first return spring (20) is sleeved on the outer surface of the connecting column (18) in a sliding mode and located at the top of the limiting sleeve (15).

3. The ultra-wide industrial cloth coating apparatus of claim 2, wherein: the inner part of the trigger frame (9) comprises a trigger rod (21), a guide frame (22), a plugging backing plate (23) and an inserting rod (24), the guide frame (22) is symmetrically welded on two end faces of the trigger rod (21), the inserting rod (24) is symmetrically welded on bottom surface edges of two ends of the plugging backing plate (23), and the inserting rod (24) is slidably inserted in the center of the top surface of the guide frame (22).

4. The ultra-wide industrial cloth coating apparatus of claim 3, wherein: the cutting device is characterized in that an insertion groove is formed in the center of the upper surface of the cutting plate (13), limiting insertion rods are welded at the edges of four corners of the bottom of each of two ends of the cutting tool (10), and second reset springs are uniformly and fixedly mounted in the insertion grooves.

5. The ultra-wide industrial cloth coating device according to claim 4, wherein: first limiting jacks are formed in the inner surfaces of two ends of the limiting support frame (7), two ends of the first connecting rod (16) are fixedly connected with two ends of the inside of the limiting support frame (7) in an inserting mode through the limiting jacks, a second limiting jack is formed in the top surface of the guide frame (22), and a third reset spring is fixedly connected to the bottom end of the inserting rod (24).

6. The ultra-wide industrial cloth coating device according to claim 5, wherein: the inner position of the plug-adding backing plate (23) on the limiting support frame (7) is located between the cutting plate (13) and one side of the extrusion plate (17), limiting slide ways are arranged on the upper surfaces of two ends of the limiting frame (14), the bottom end of the guide frame (22) is connected with the inner sliding joint of the limiting slide way and the limiting frame (14) in a sliding mode, and a fourth reset spring is fixedly connected to the edge of one end of the bottom of the guide frame (22).

7. The ultra-wide industrial cloth coating apparatus of claim 6, wherein: the second connecting rod (19) contacts with the outer surface of the extrusion roller (11) in the limiting support frame (7), fastening screws are spirally connected to the side edges of the two ends of the limiting support frame (7), and one end of the blanking frame (3) is slidably sleeved with the outer surface of the winding shaft (4).

8. The ultra-wide industrial cloth coating apparatus of claim 7, wherein: spacing spout (25) have been seted up at the side bottom edge of leading truck (22), the both ends edge surface spiral connection of trigger bar (21) has threaded rod (27), the one end welding of threaded rod (27) has carousel (26).