CN113104654A

CN113104654A - Double-pulling cloth laying mechanism of protective clothing cloth laying machine

Info

Publication number: CN113104654A
Application number: CN202110498006.6A
Authority: CN
Inventors: 田艳军; 乔富国; 朱文强; 李波
Original assignee: Jihua 3542 Textile Co Ltd
Current assignee: Jihua 3542 Textile Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-07-13

Abstract

The invention relates to the technical field of cloth paving machine equipment production, and discloses a double-pulling cloth paving mechanism of a protective clothing cloth paving machine, which comprises mounting frames symmetrically arranged on the cloth paving machine, wherein the two mounting frames are respectively provided with a first roll shaft, a second roll shaft and a third roll shaft, wherein: the cloth enters from the first roller and is sent out from the third roller, and the second roller presses the surface of the cloth and is kept at the station by the tension of the cloth. According to the double-pulling cloth spreading mechanism of the protective clothing cloth spreading machine, the sensing unit detects the change of the second roller shaft, the stepping motor on the self-locking transfer assembly is driven to drive the eccentric wheel to rotate for a certain angle, the connecting rod assembly is driven to slide to enable the first roller shaft and the third roller shaft to react, namely, the first roller shaft and the third roller shaft are close to or far away from each other so as to drive the tension degree of cloth to change, and therefore the second roller shaft is reset, the purpose that the tension degree can be changed in a self-adaptive mode is achieved, and the problems that the cloth is infected with engine oil or is wrinkled and rolled are solved.

Description

Double-pulling cloth laying mechanism of protective clothing cloth laying machine

Technical Field

The invention relates to the technical field of cloth paving machine equipment production, in particular to a double-pulling cloth paving mechanism of a protective clothing cloth paving machine.

Background

The cloth spreading machine is used for spreading cloth in the cloth cutting industry, and the cloth spreading machine needs to lay the cloth on a cloth spreading table of the cloth spreading machine firstly, then a roller rotates at a preset rotating speed under the control of a controller and is combined with the movement of a machine head, so that cloth is put down at a corresponding linear speed, and the cloth is laid on the cloth spreading table flatly. The cloth paving modes adopted by the cloth paving machine in the current market mainly comprise single-pull cloth paving and double-pull cloth paving.

According to the patent number CN201810003896.7, a double-pulling cloth spreading mechanism of a cloth spreading machine is disclosed, which comprises a first substrate and a second substrate which are oppositely arranged at intervals, wherein a connecting shaft and a sliding plate fixedly arranged on the connecting shaft are rotatably connected between the first substrate and the second substrate; a rotatable transmission rod and a baffle fixedly arranged on the transmission rod are further arranged between the first substrate and the second substrate, and one end of the connecting shaft is connected with a transmission assembly capable of driving the transmission rod to be linked. The scheme aims to effectively avoid the cloth slipping phenomenon.

When the cloth spreading machine is operated to spread cloth in a double-pulling mode, the distances among the multiple groups of cloth guide rollers are fixed, the thicknesses of actually produced cloth are different, cloth rolls on the roller are required to be replaced in the production process, and therefore when the cloth passes through the cloth guide rollers, the tightness of the cloth is difficult to maintain, and the phenomenon of cloth slipping occurs.

Disclosure of Invention

Solves the technical problem

The double-pulling cloth spreading mechanism of the protective clothing cloth spreading machine provided by the invention aims to solve the problems in the background technology, so that the tension degree of a plurality of groups of cloth guide rollers can be adaptively changed along with different cloth thicknesses, the cloth is prevented from being polluted by engine oil or being wrinkled and rolled, and the quality of a product is influenced.

Technical scheme

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: the utility model provides a two drawing of protective clothing shop cloth machine spread cloth mechanism, sets up the mounting bracket on shop cloth machine including the symmetry, two the mounting bracket is provided with roller one, roller two and roller three respectively, wherein:

the cloth enters from the first roll shaft and is sent out from the third roll shaft, and the second roll shaft presses the surface of the cloth under negative pressure, is blocked by the tightness of the cloth and is kept at the station, and the cloth is in a V-shaped structure;

the second roll shaft moves along with the cloth tension degree in the vertical direction, and the first roll shaft and the third roll shaft move along with the axial direction of the second roll shaft and move towards one side of the second roll shaft or move away from the side of the second roll shaft, so that the second roll shaft is always in an initial station.

Preferably, the device further comprises a driving mechanism I which is arranged on the outer wall of the opposite side of the two mounting frames and is used for driving the second roll shaft to keep moving axially.

Preferably, the device further comprises a driving mechanism II which is arranged on the outer wall of one side of the two opposite mounting frames and used for driving the first roll shaft to enter and the third roll shaft to move close to or away from one side of the second roll shaft.

Preferably, the driving mechanism I includes a guide slider, a guide rod assembly and a push spring, the guide slider is slidably disposed in a waist groove formed in the middle of the mounting frame, the two axial directions of the roller shaft are rotatably disposed on the outer wall of one side of the guide slider, a guide slider is disposed on the outer wall of one side of the guide slider, and the guide slider is sleeved on the slide rod on the guide rod assembly and driven by the push spring to guide the slider to negatively press the surface of the fabric.

Preferably, the guide rod assembly is mounted on the mounting frame, and one of the connecting seats is provided with a sensing unit which is assembled to detect the relative movement of the guide sliding block so as to drive the driving mechanism II to work.

Preferably, the sensing unit may be an infrared sensor or a gravity sensor.

Preferably, the driving mechanism II comprises a self-locking transfer assembly and a connecting rod assembly, the first roll shaft and the third roll shaft are assembled on the connecting rod assembly respectively, and the self-locking transfer assembly is assembled and used for being driven by the sensing unit to drive the connecting rod assembly, so that the first roll shaft and the third roll shaft move close to or away from one side of the second roll shaft.

Preferably, the connecting rod assembly comprises a moving seat, a first connecting rod, a second connecting rod, a first connecting arm and a second connecting arm, guide rail grooves symmetrically distributed about the roll shaft are formed in the mounting frame, and the moving seat is slidably arranged in the guide rail grooves of the guide rail grooves; one end of the second connecting arm and one end of the first connecting arm are respectively and axially rotatably arranged on the outer wall of the moving seat, close to one end of the moving seat and opposite to the two sides of the moving seat; one end of the first connecting rod is axially and rotatably connected with one end of the first connecting arm, and one end of the second connecting rod is axially and rotatably connected with one end of the second connecting arm; one end axial of the first connecting rod rotates on a rotating shaft arranged on the mounting rack, and the first connecting rod and the roller shaft are located on the same side.

Preferably, a sliding rod which is distributed away from the center is arranged between the first connecting rod and the second connecting rod, and the sliding rod is arranged in a track groove formed in the movable seat in a sliding manner; the first connecting rod and the second connecting rod are respectively distributed symmetrically on the inclined plane; the third roll shaft and the first roll shaft are respectively connected with the sliding rod.

Preferably, the self-locking transfer assembly comprises a frame and eccentric wheels which are symmetrically distributed; the rack is provided with a stepping motor, the outer wall of one side of the rack, which is opposite to the stepping motor, is provided with a transmission shaft, the center of the movable shaft is provided with a worm wheel, two ends of the movable shaft are respectively provided with a circular gear, the output end of the stepping motor is fixedly provided with a worm which is meshed with the worm wheel, the outer wall of one side of the eccentric wheel is provided with a vertical gear, and the vertical gear is meshed with the circular gear; and the first connecting rod and the second connecting rod are respectively in shaft connection with the eccentric shafts of the two circular gears.

Advantageous effects

Compared with the prior art, the double-pulling cloth spreading mechanism of the protective clothing cloth spreading machine provided by the embodiment of the invention has the following beneficial effects: in the design, the first roller and the third roller are used for guiding the cloth to be conveyed to the cloth laying platform through the roller, and the second roller is used for negative pressure on the surface of the cloth to enable the cloth to be in a state shown in figure 6. When the thickness of the cloth changes, the second roller shaft presses the cloth under the action of the pushing spring, and in the process (taking the state shown in fig. 6 as a standard formula): the thickness of the cloth is increased, and the roll shaft II moves upwards; the cloth thickness is reduced, and the roller shaft II moves downwards. And the induction unit detects the change of roller two, and the step motor on the drive auto-lock transfer subassembly drives the eccentric wheel and rotates certain angle, and drive link assembly slides so that roller one reacts with roller three, thereby draw close/keep away from promptly and order about the cloth rate of tension and change to reset roller two. And the worm assembly in the scheme can lock the roller I and the roller III so that the roller I and the roller III are kept in the state. Thereby realized the purpose that the rate of tension can take place the change of self-adaptation to avoided the emergence of swift current cloth phenomenon, so that caused the cloth to be infected with machine oil or the problem that fold, play book appear. And reduced the requirement to the elastic component in the scheme, avoided causing the elastic coefficient to change because long-time elastic component deformation to hardly satisfy rate of tension self-adaptation's purpose, make the elastic component be in an optimum state throughout in the whole scheme, and the elastic coefficient reduces the normal implementation that can not influence the scheme yet.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

FIG. 1 is a schematic view of the overall structure of a double-spreading mechanism of the present invention;

FIG. 2 is a schematic structural diagram of a driving mechanism I of the double-spreading mechanism of the invention;

FIG. 3 is a schematic structural view of a self-locking transfer assembly of the double-spreading mechanism of the present invention;

FIG. 4 is a schematic view of an assembly relationship structure of a self-locking transfer assembly and a connecting rod assembly of the double-spreading mechanism of the present invention;

FIG. 5 is a schematic structural view of an assembly relation between a connecting rod assembly and a first roller shaft and a third roller shaft of the double-pulling cloth spreading mechanism;

FIG. 6 is a schematic structural diagram of the position relationship among a first roll shaft, a second roll shaft and a third roll shaft and the initial station state of the second roll shaft on the double-spreading mechanism;

fig. 7 is an exploded view of the linkage assembly of the double lapper mechanism of the present invention.

In the figure: 1. a mounting frame; 11. a waist groove; 12. a guide rail groove; 2. a first roll shaft; 3. a second roll shaft; 4. a roll shaft III; 5. a driving mechanism I; 51. a guide slider; 52. a guide bar assembly; 53. pushing a spring; 6. a driving mechanism II; 7. a self-locking transfer assembly; 71. a frame; 72. an eccentric wheel; 73. a stepping motor; 731. a worm; 74. a drive shaft; 741. a worm gear; 742. a circular gear; 8. a connecting rod assembly; 81. a movable seat; 811. a track groove; 82. a first connecting rod; 83. a second connecting rod; 84. a first connecting arm; 85. a second connecting arm; 86. a slide bar; 100. a sensing unit.

Detailed Description

So that the objects, technical solutions and advantages of the embodiments of the present disclosure will be more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 7, the double-spreading mechanism of the protective clothing spreading machine provided by the invention comprises mounting frames 1 symmetrically arranged on the spreading machine, wherein the two mounting frames 1 are respectively provided with a first roll shaft 2, a second roll shaft 3 and a third roll shaft 4, wherein:

the cloth enters from the roller shaft I2 and is sent out from the roller shaft III 4, and the roller shaft II 3 presses the surface of the cloth under negative pressure, is blocked by the tightness of the cloth and is kept at the station, and the cloth is in a V-shaped structure. In the design, the first roller 2 and the third roller 4 are used for guiding the cloth to be conveyed to the cloth laying platform through the roller, and the second roller 3 is used for leading the cloth to be in a state shown in figure 6 by negative pressure on the surface of the cloth.

When the thickness of the cloth changes, the second roller 3 is pressed by the pushing spring 53, and in the process (taking the state shown in fig. 6 as a standard equation): the second roll shaft 3 moves along with the cloth tension in the vertical direction, and the first roll shaft 2 and the third roll shaft 4 move along with the axial direction of the second roll shaft 3 and approach/move away from one side of the second roll shaft 3 so that the second roll shaft 3 is always in an initial station. The thickness of the cloth is increased, and the roller shaft II 3 moves upwards; the cloth thickness is reduced, and the second roll shaft 3 moves downwards. And the induction unit detects 100 the change of the second roll shaft 3, drives the stepping motor 73 on the self-locking transfer assembly 7 to drive the eccentric wheel 72 to rotate for a certain angle, and drives the connecting rod assembly 8 to slide so that the first roll shaft 2 and the third roll shaft 4 react, namely, the first roll shaft 2 and the third roll shaft are close to each other/far away from each other to drive the tension degree of the cloth to change, thereby resetting the second roll shaft 3.

In the above solution, as shown in fig. 5 and 6, the driving of the second roller 3 is performed by the driving mechanism I5 installed on the outer wall of the opposite side of the two mounting frames 1. The first roll shaft 2 and the third roll shaft 4 depend on the driving mechanism II6 on the outer wall of the opposite side of the two mounting frames 1, the matching relationship between the two roll shafts is that the thickness of the cloth is increased, and the second roll shaft 3 moves upwards; the cloth thickness is reduced, and the second roll shaft 3 moves downwards. And the induction unit detects 100 the change of the second roll shaft 3, drives the stepping motor 73 on the self-locking transfer assembly 7 to drive the eccentric wheel 72 to rotate for a certain angle, and drives the connecting rod assembly 8 to slide so that the first roll shaft 2 and the third roll shaft 4 react, namely, the first roll shaft 2 and the third roll shaft are close to each other/far away from each other to drive the tension degree of the cloth to change, thereby resetting the second roll shaft 3. It relies on the sensing unit 100 provided at the driving mechanism I5.

It should be noted that the sensing unit 100 may be an infrared sensor or a gravity sensor, and since the basic operation principle and the circuit driving principle of the electronic component are well known to those skilled in the art, they are not disclosed in detail in this application.

In a further technical solution provided by the present invention, as shown in fig. 2, 3 and 6, the driving mechanism I5 includes a guide slider 51, a guide rod assembly 52 and a push spring 53, the guide slider 51 is slidably disposed in the waist groove 11 centrally opened on the mounting frame 1, the second roller shaft 3 is axially and rotatably disposed on the outer wall of one side of the guide slider 51, a guide slider is disposed on the outer wall of one side of the guide slider 51, the guide slider is sleeved on the slide rod on the guide rod assembly 52, and is driven by the push spring 53 to make the guide slider 51 perform negative pressure on the surface of the cloth.

Furthermore, as shown in fig. 2, the guide bar assembly 52 is mounted on the mounting rack 1, and one of the connecting bases is provided with a sensing unit 100, the sensing unit 100 is configured to detect the relative movement of the guide block 51 to drive the driving mechanism II6 to operate.

In a specific implementation process, when the thickness of the cloth changes, the corresponding pushing spring 53 drives the sliding guide block 51 to move so that the roller shaft two 3 pushes the cloth, and finally the movement is stopped by the tension of the cloth. At this time, the sensing unit 100 detects the displacement, so as to drive the driving mechanism II6 to operate, and adjust the tension of the cloth, so that the cloth drives the roller shaft two 3 to reset, and reset to the original parameters (not disclosed in detail in the present invention).

In a further aspect of the present invention, as shown in fig. 1, 3 and 4, the driving mechanism II6 includes a self-locking transfer assembly 7 and a link assembly 8, the first roller shaft 2 and the third roller shaft 4 are respectively assembled on the link assembly 8, and the self-locking transfer assembly 7 is assembled to be driven by the sensing unit 100 to drive the link assembly 8 so as to move the first roller shaft 2 and the third roller shaft 4 toward/away from the second roller shaft 3. Specifically, the method comprises the following steps:

the connecting rod assembly 8 in the above solution includes a moving seat 81, a first connecting rod 82, a second connecting rod 83, a first connecting arm 84, and a second connecting arm 85. As can be seen from fig. 4, 5 and 7, the mounting frame 1 is provided with guide rail grooves 12 symmetrically distributed with respect to the second roll shaft 3, and the movable base 81 is slidably disposed in the guide rail grooves 12 of the guide rail grooves 12; one end of the connecting arm II 85 and one end of the connecting arm I84 are respectively and axially rotatably arranged on the outer wall of the moving seat 81 close to one end of the moving seat and opposite to the two sides of the moving seat; one end of the first connecting rod 82 is axially and rotatably connected with one end of the first connecting arm 84, and one end of the second connecting rod 83 is axially and rotatably connected with one end of the second connecting arm 85; one end of the first connecting rod 82 axially rotates on a rotating shaft arranged on the mounting rack 1, and the first connecting rod 82 and the roller shaft are positioned on the same side. A sliding rod 86 distributed away from the center is arranged between the first connecting rod 82 and the second connecting rod 83, and the sliding rod 86 is arranged in a track groove 811 formed on the moving seat 81 in a sliding manner; the first connecting rod 82 and the second connecting rod 83 are respectively distributed in a symmetrical way on the inclined plane; the roller shaft three 4 and the roller shaft one 2 are respectively connected with the slide bar 86.

The self-locking transfer assembly 7 in the above solution comprises a frame 71 and eccentric wheels 72 which are symmetrically distributed. As can be seen from fig. 3, 4 and 5, the frame 71 is provided with the stepping motor 73, the outer wall of the frame 71 on the side opposite to the stepping motor 73 is provided with the transmission shaft 74, the center of the transmission shaft 74 is provided with the worm wheel 741, two ends of the transmission shaft are respectively provided with the circular gears 742, the output end of the stepping motor 73 is fixedly provided with the worm 731 engaged with the worm wheel 741, the outer wall of the eccentric wheel 72 on the side is provided with the vertical gear engaged with the circular gears 742; and the first link 82 and the second link 83 are respectively coupled to the eccentric shafts of the two circular gears 742.

In a specific implementation process, when the sensing unit 100 transmits retrieval data, the circuit board calculates the data and respectively drives the stepping motor 73 to drive the eccentric wheel 72 to drive the two first connecting rods 82 to move relatively, i.e., move close to or away from each other, and under the mechanism of the connecting rods, the two second connecting rods 83 also move correspondingly, so that the purpose of the invention is that the roller shaft two 3 moves along with the cloth tension in the vertical direction, and the roller shaft one 2 and the roller shaft three 4 move along with the axial direction of the roller shaft two 3 and move close to or away from one side of the roller shaft two 3 so that the roller shaft two 3 is always in an initial station. Thereby realized the purpose that the rate of tension can take place the change of self-adaptation to avoided the emergence of swift current cloth phenomenon, so that caused the cloth to be infected with machine oil or the problem that fold, play book appear. And reduced the requirement to the elastic component in the scheme, avoided causing the elastic coefficient to change because long-time elastic component deformation to hardly satisfy rate of tension self-adaptation's purpose, make the elastic component be in an optimum state throughout in the whole scheme, and the elastic coefficient reduces the normal implementation that can not influence the scheme yet.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a two drawing of protective clothing shop cloth machine spread cloth mechanism, its characterized in that sets up mounting bracket (1) on shop cloth machine including the symmetry, two mounting bracket (1) is provided with roller one (2), roller two (3) and roller three (4) respectively, wherein:

the cloth enters from the roller shaft I (2) and is sent out from the roller shaft III (4), and the roller shaft II (3) presses the surface of the cloth under negative pressure, is blocked by the tension of the cloth and is kept at the station, and the cloth is in a V-shaped structure;

the second roll shaft (3) moves in the vertical direction along with the cloth tension degree, and the first roll shaft (2) and the third roll shaft (4) move along with the second roll shaft (3) in the axial direction and move towards one side of the second roll shaft (3) to be close to or far away from the second roll shaft (3) so that the second roll shaft (3) is always in an initial station.

2. The double-pulling cloth spreading mechanism of the cloth spreading machine for the protective clothing is characterized by further comprising a driving mechanism I (5) which is arranged on the outer wall of the two opposite sides of the mounting rack (1) and is used for driving the second roller shaft (3) to keep moving axially.

3. The double-pulling cloth spreading mechanism of the cloth spreading machine for the protective clothing is characterized by further comprising a driving mechanism II (6) which is arranged on the outer wall of one side of the two mounting frames (1) opposite to each other and is used for driving the first roller shaft (2) to enter and the third roller shaft (4) to move close to or away from one side of the second roller shaft (3).

4. The double-pulling cloth spreading mechanism of the protective clothing cloth spreading machine according to claim 2, wherein the driving mechanism I (5) comprises a guide sliding block (51), a guide rod assembly (52) and a push spring (53), the guide sliding block (51) is slidably arranged in a waist groove (11) formed in the middle of the mounting frame (1), the second roller shaft (3) is axially and rotatably arranged on the outer wall of one side of the guide sliding block (51), a guide sliding seat is arranged on the outer wall of one side of the guide sliding block (51), and the guide sliding seat is sleeved on a sliding rod on the guide rod assembly (52) and driven by the push spring (53) to guide the sliding block (51) to negatively press the cloth surface.

5. Double-spreading mechanism of a machine for spreading protective clothing according to claim 4, characterized in that said guiding rod assembly (52) is mounted on said mounting frame (1) and one of the connecting seats is provided with a sensing unit (100), said sensing unit (100) being equipped to detect the relative movement of said guiding blocks (51) to actuate the actuating mechanism II (6).

6. The double-spreading mechanism of a spreading machine for protective clothing according to claim 5, characterized in that the sensing unit (100) can be an infrared sensor or a gravity sensor.

7. The double-pulling cloth spreading mechanism of the protective clothing cloth spreading machine according to claim 3, wherein the driving mechanism II (6) comprises a self-locking transfer assembly (7) and a connecting rod assembly (8), the first roller shaft (2) and the third roller shaft (4) are respectively assembled on the connecting rod assembly (8), and the self-locking transfer assembly (7) is assembled to be used for a sensing unit (100) to drive the connecting rod assembly (8) so that the first roller shaft (2) and the third roller shaft (4) can be close to or away from one side of the second roller shaft (3).

8. The double-pulling cloth spreading mechanism of the cloth spreading machine for the protective clothing according to claim 7, wherein the connecting rod assembly (8) comprises a moving seat (81), a first connecting rod (82), a second connecting rod (83), a first connecting arm (84) and a second connecting arm (85), the mounting frame (1) is provided with guide rail grooves (12) which are symmetrically distributed relative to the second roller shaft (3), and the moving seat (81) is slidably arranged in the guide rail grooves (12) of the guide rail grooves (12); one end of the connecting arm II (85) and one end of the connecting arm I (84) are respectively and axially rotatably arranged on the outer wall of the moving seat (81) close to one end of the moving seat and opposite to the two sides of the moving seat; one end of the first connecting rod (82) is axially and rotatably connected with one end of the first connecting arm (84), and one end of the second connecting rod (83) is axially and rotatably connected with one end of the second connecting arm (85); one end axial of the first connecting rod (82) rotates on a rotating shaft arranged on the mounting rack (1), and the first connecting rod (82) and the roller shaft are located on the same side.

9. The double-pulling cloth spreading mechanism of the cloth spreading machine for the protective clothing according to claim 8, characterized in that a sliding rod (86) distributed away from the center is arranged between the first connecting rod (82) and the second connecting rod (83), and the sliding rod (86) is slidably arranged in a track groove (811) formed on the moving seat (81); the first connecting rod (82) and the second connecting rod (83) are respectively distributed in an inclined plane symmetry way; the roll shaft III (4) and the roll shaft I (2) are respectively connected with the sliding rod (86).

10. The double-spreading mechanism of a protective clothing spreader according to claim 7, wherein the self-locking transfer assembly (7) comprises a frame (71) and symmetrically distributed eccentric wheels (72); a stepping motor (73) is installed on the rack (71), a transmission shaft (74) is arranged on the outer wall of one side, opposite to the stepping motor (73), of the rack (71), a worm gear (741) is arranged in the center of the transmission shaft (74), circular gears (742) are respectively arranged at two ends of the transmission shaft, a worm (731) meshed with the worm gear (741) is fixedly installed at the output end of the stepping motor (73), a vertical gear is arranged on the outer wall of one side of the eccentric wheel (72), and the vertical gear is meshed with the circular gears (742); and the first connecting rod (82) and the second connecting rod (83) are respectively coupled with the eccentric shafts of the two circular gears (742).