CN111776624A

CN111776624A - Mask conveying device

Info

Publication number: CN111776624A
Application number: CN202010709335.6A
Authority: CN
Inventors: 韩飞; 王家乐
Original assignee: Anhui Linquan Zhichuang Seiki Co ltd
Current assignee: Anhui Linquan Zhichuang Seiki Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-10-16

Abstract

The invention provides a mask conveying device, which comprises two vertically arranged racks, a conveying belt is horizontally arranged between the racks, a plurality of partition plates are equidistantly arranged on the outer ring of the belt body of the conveying belt along the length direction of the conveying belt, transverse plates are fixed on the back-to-face surfaces of the two racks, a vertical plate is vertically fixed at the upper end of the transverse plate, a guide sleeve vertical to the length direction of the conveying belt is horizontally fixed at the upper end of the vertical plate, the guide sleeve is internally sleeved with connecting rods in sliding connection, opposite ends of the two connecting rods are fixed with push plates parallel to the length direction of the conveying belt, the mask conveying device disclosed by the invention has the advantages that the position of the conveyed masks is adjusted through the two push plates and then the masks are stacked on the supporting plate, so that the masks are stacked orderly, and the trouble of manual arrangement is reduced.

Description

Mask conveying device

Technical Field

The invention relates to the technical field of mask machines, in particular to a mask conveying device.

Background

The gauze mask machine passes through hot pressing, fold forming with the multilayer non-woven fabrics, ultrasonic bonding, the waste material excision, processes such as ear area bridge of the nose strip welding produce the various gauze masks that have certain filtering quality, carry through the conveyer belt after the gauze mask is made to fall down from the end of conveyer belt, pile layer upon layer and put together, the inventor discovers, in the current gauze mask machine, the gauze mask is stacked at last and is very mixed and disorderly together, need the manual arrangement of workman, it is very troublesome.

Disclosure of Invention

Accordingly, the present invention is directed to a mask delivery device that solves one or all of the problems set forth above in the related art.

Based on the above purpose, the invention provides a mask conveying device, which comprises two vertically arranged racks, a conveying belt is horizontally arranged between the racks, a plurality of partition plates are equidistantly arranged on the outer ring of the conveying belt along the length direction of the conveying belt, transverse plates are fixed on the opposite surfaces of the two racks, a vertical plate is vertically fixed at the upper end of the transverse plate, a guide sleeve vertical to the length direction of the conveying belt is horizontally fixed at the upper end of the vertical plate, a connecting rod in sliding connection is sleeved in the guide sleeve, push plates parallel to the length direction of the conveying belt are fixed at the opposite ends of the two connecting rods, the two push plates are symmetrically arranged on the two sides of the conveying belt, a driving unit is further arranged on the transverse plate and used for driving the connecting rod to slide along the inner part of the guide sleeve, a supporting plate is arranged between the racks and located below the conveying tail end of the conveying, the transfer unit is used for vertically stacking the masks at the conveying tail ends of the conveying belts on the supporting plates.

Optionally, the transfer unit is including fixing baffle and the fixed plate between the frame, the baffle is close to the transport end of conveyer belt, the fixed plate is located the one side that the conveyer belt was kept away from to the baffle, be fixed with cylinder one on the fixed plate, the piston rod of cylinder one is towards the conveyer belt and is on a parallel with the length direction of conveyer belt, the piston rod front end of cylinder one is fixed with the connecting strip, the both ends of connecting strip are fixed with the support bar that is on a parallel with conveyer belt length direction, the support bar runs through in the baffle, two the support bar is located the both sides of the upper end area body of conveyer belt respectively.

Optionally, a supporting plate is fixed between the racks, a second vertical upward cylinder is fixed at the upper end of the supporting plate, a C-shaped fixing frame is fixed at the top of a piston rod of the second cylinder, a screw rod connected in a rotating mode is vertically arranged on the inner side of the fixing frame, a sliding rod parallel to the screw rod is further fixed on the inner side of the fixing frame, a sliding block connected in a threaded mode is arranged on the screw rod, the sliding rod penetrates through the sliding block, a connecting block is fixed at one end of the sliding block, the supporting plate is fixed at the top of the connecting block, a first motor is fixed at the bottom of the fixing frame, and an output shaft of the first motor.

Optionally, the drive unit includes that vertical motor two of fixing on the diaphragm, the output shaft upper end of motor two is fixed with the carousel, the position that is close to the circumference on the carousel is provided with the briquetting, two the opposite end of connecting rod is fixed with the clamp plate, the outside cover of connecting rod is equipped with the spring, the one end of spring is fixed in the push pedal, and the other end is fixed on the riser.

Optionally, be provided with waist shape hole on the carousel, waist shape hole is located a radius of carousel, the bottom of briquetting is equipped with the screw rod that runs through waist shape hole to carousel lower extreme, be equipped with threaded connection's lock nut on the screw rod, lock nut supports and holds the lower terminal surface at the carousel.

As can be seen from the above, the mask conveying device provided by the invention adjusts the position of the conveyed mask through the two push plates, and then stacks the mask on the supporting plate, so that the masks are stacked orderly, and the trouble of manual arrangement is reduced.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a schematic top view of a conveyor apparatus of the present invention;

FIG. 2 is a schematic front view of the delivery device of the present invention;

FIG. 3 is a side schematic view of the delivery device of the present invention;

fig. 4 is an internal schematic view of the delivery device of the present invention.

Wherein 1, a frame; 2. a conveyor belt; 3. a partition plate; 4. a supporting strip; 5. a baffle plate; 6. a connecting strip; 7. a first cylinder; 8. a fixing plate; 9. pushing the plate; 10. a spring; 11. a transverse plate; 12. a vertical plate; 13. a guide sleeve; 14. a connecting rod; 15. pressing a plate; 16. a turntable; 17. briquetting; 18. a screw; 19. a waist-shaped hole; 20. locking the nut; 21. a second motor; 22. a support plate; 23. a fixed mount; 24. a slide bar; 25. a slider; 26. connecting blocks; 27. a screw rod; 28. a first motor; 29. a second air cylinder; 30. and (4) a support plate.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may 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.

The invention discloses a mask conveying device, which comprises two vertically arranged racks 1, wherein a conveying belt 2 is horizontally arranged between the racks 1, a plurality of partition plates 3 are equidistantly arranged on the outer ring of the belt body of the conveying belt 2 along the length direction of the outer ring, transverse plates 11 are fixed on the opposite surfaces of the two racks 1, a vertical plate 12 is vertically fixed at the upper end of the transverse plate 11, a guide sleeve 13 vertical to the length direction of the conveying belt 2 is horizontally fixed at the upper end of the vertical plate 12, a connecting rod 14 in sliding connection is sleeved in the guide sleeve 13, push plates 9 parallel to the length direction of the conveying belt 2 are fixed at the opposite ends of the two connecting rods 14, the two push plates 9 are symmetrically arranged at the two sides of the conveying belt 2, a driving unit is also arranged on the transverse plate 11 and used for driving the connecting rod 14 to slide along the inner part of the guide sleeve 13, a supporting plate 22 is arranged between the racks 1, a transfer unit is further arranged between the racks 1 and used for vertically stacking the masks at the conveying tail ends of the conveying belts 2 on the supporting plates 22.

As shown in fig. 1-3, the mask conveying device comprises two vertical frames 1, the two frames 1 are fixed in a factory building for installing and supporting other devices, a conveying belt 2 is horizontally arranged between the frames 1, the conveying belt 2 is driven by a driving roller, for the prior art, details are not described here, a plurality of partition plates 3 are equidistantly arranged along the length direction of the outer ring of the belt body of the conveying belt 2, the partition plates 3 can be fixed on the belt body of the conveying belt 2 in a bolt riveting manner, the conveying belt 2 is divided into a plurality of placing areas by the partition plates 3, masks are placed in the placing areas one by one for conveying, transverse plates 11 are fixed opposite to the back of the two frames 1, for example, the transverse plates 11 can be fixedly connected with the frames 1 in a welding manner, vertical plates 12 are fixed at the upper ends of the transverse plates 11, the vertical plates 12 can be fixedly connected with the transverse plates 11 in, the guide sleeve 13 is fixedly connected with the vertical plate 12 in a welding mode, the guide sleeve 13 is horizontally arranged and is vertical to the length direction of the conveying belt 2, the connecting rods 14 in sliding connection are sleeved inside the guide sleeve 13, the same connecting rods 14 are vertical to the length direction of the conveying belt 2, push plates 9 are fixed at opposite ends of the two connecting rods 14, the push plates 9 are parallel to the length direction of the conveying belt 2, the two push plates 9 are symmetrically arranged at two sides of the conveying belt 2, a driving unit is arranged on the transverse plate 11 and used for driving the connecting rods 14 to slide along the inside of the guide sleeve 13, a supporting plate 22 is further arranged on the machine frame 1, the supporting plate 22 is positioned below the conveying tail, taking the view angle of fig. 1 as an example, assuming that the conveying direction of the conveying belt 2 is from left to right, the supporting plate 22 is located below the right end of the conveying belt 2, and a transfer unit is further arranged between the racks 1 and used for vertically stacking the masks at the conveying end of the conveying belt 2 on the supporting plate 22.

For example, the conveyor belt 2 conveys the manufactured masks one by one, when the masks pass between the two push plates 9, the driving unit drives the two connecting rods 14 to move oppositely, so that the two push plates 9 are close to each other, the two push plates 9 are symmetrically arranged at two sides of the conveyor belt 2, a placing area is formed between the adjacent partition plates 3, the two push plates 9 push the masks in the placing area, so that the masks move to the center of the conveyor belt 2, after the positions of the masks in the placing area are adjusted, the driving unit drives the two connecting rods 14 to be away from each other, so that the push plates 9 are far away from the conveyor belt 2, when the masks in the next placing area move between the two push plates 9, the driving unit drives the two connecting rods 14 to be close to each other again, so that the two push plates 9 adjust the positions of the masks, so that the masks passing through the push plates 9 are uniformly distributed on a central axis of the conveyor, transfer the unit and carry 2 terminal gauze masks of conveyer belt vertical stacks on layer board 22, and the gauze mask stacks on layer board 22 through position adjustment again, and is more neat, and after the gauze mask piles up and puts the take away after the take the altitude, the manual work is taken away the gauze mask on layer board 22, carries out packing process on next step.

In conclusion, the mask conveying device provided by the invention adjusts the position of the conveyed mask through the two push plates 9, and then stacks the mask on the supporting plate 22, so that the masks are stacked orderly, and the trouble of manual arrangement is reduced.

In some optional embodiments, as shown in fig. 1 to 3, the transfer unit includes a baffle 5 and a fixing plate 8 fixed between the frame 1, the baffle 5 is close to the conveying end of the conveying belt 2, the fixing plate 8 is located on one side of the baffle 5 away from the conveying belt 2, a first cylinder 7 is fixed on the fixing plate 8, a piston rod of the first cylinder 7 faces the conveying belt 2 and is parallel to the length direction of the conveying belt 2, a connecting bar 6 is fixed at a front end of the piston rod of the first cylinder 7, supporting bars 4 parallel to the length direction of the conveying belt 2 are fixed at two ends of the connecting bar 6, the supporting bars 4 penetrate through the baffle 5, and two supporting bars 4 are respectively located on two sides of the upper belt body of the conveying belt 2.

The baffle 5 and the fixed plate 8 can be fixed between the frames 1 by welding, the baffle 5 is close to the conveying end of the conveyer belt 2, the fixed plate 8 is positioned at one side of the baffle 5 far away from the conveyer belt 2, the cylinder I7 is fixedly connected with the fixed plate 8 by bolt connection, the support bars 4 are fixedly connected with the connecting bars 6 by welding, the support bars 4 penetrate through the baffle 5, the working principle of the transfer unit is that the cylinder I7 carries out periodic telescopic operation, when the piston rod of the cylinder I extends out, the connecting bars 6 and the support bars 4 are driven to move towards the conveyer belt 2, the two support bars 4 move to two sides of the belt body at the upper end of the conveyer belt 2, when the mask on the conveyer belt 2 enters the arc section at the end part from the upper end of the mask, the mask falls on the upper ends of the two support bars 4, then the piston, support bar 4 runs through in baffle 5, move towards a 7 directions of cylinder along with support bar 4, baffle 5 is touch to one side of gauze mask and the stop, but support bar 4 continues to move, when support bar 4 moves to the one side of baffle 5 back to conveyer belt 2 completely, gauze mask on the support bar 4 falls to on the layer board 22, then the piston rod of cylinder 7 stretches out again, drive support bar 4 and run through baffle 5 and move to the both sides of conveyer belt 2, fall on support bar 4 with next gauze mask, the gauze mask is adjusted length direction's position by two push pedal 9, baffle 5 is adjusted gauze mask width direction's position, further make the orderly stack of gauze mask on layer board 22.

In some optional embodiments, as shown in fig. 4, a support plate 30 is fixed between the racks 1, a second cylinder 29 which faces upward vertically is fixed at the upper end of the support plate 30, a C-shaped fixing frame 23 is fixed at the top of a piston rod of the second cylinder 29, a screw 27 which is rotatably connected is vertically arranged inside the fixing frame 23, a sliding rod 24 which is parallel to the screw 27 is further fixed inside the fixing frame 23, a sliding block 25 which is connected by screw threads is arranged on the screw 27, the sliding rod 24 penetrates through the sliding block 25, a connecting block 26 is fixed at one end of the sliding block 25, the supporting plate 22 is fixed at the top of the connecting block 26, a first motor 28 is fixed at the bottom of the fixing frame 23, and an output shaft of the first motor 28 is connected with one end of.

For example, the support plate 30 can be fixed between the racks 1 by welding, the second cylinder 29 is fixed on the support plate 30 by bolting, the fixing frame 23 is arranged at the upper end of the piston rod of the second cylinder 29, the screw rod 27 is arranged at the inner side of the fixing frame 23, for example, bearings are arranged at the top and the bottom of the inner side of the fixing frame 23, two ends of the screw rod 27 are respectively fixed in the inner rings of the bearings, the slide rod 24 is parallel to the screw rod 27, the slide block 25 is in threaded connection with the screw rod 27, the slide rod 24 penetrates through the slide block 25, the first motor 28 is arranged at the bottom of the fixing frame 23 by bolting, the output shaft of the first motor 28 is connected with one end of the screw rod 27, the connecting block 26 can be fixed at one end of the slide block 25 by bolting or welding, the connecting block 26 is fixedly connected with the support plate 22, when the support plate 4, when the whereabouts, the piston rod of cylinder two 29 stretches out, it rises to drive layer board 22, the distance of reducible gauze mask whereabouts like this, reduce the influence of gauze mask whereabouts to its position, the stacking height of gauze mask on layer board 22 increases along with quantity increase, drive lead screw 27 through motor 28 and rotate, lead screw 27 drives slider 25 and reciprocates, slider 25 is adjusted the layer board 22 height through connecting block 26, constantly increase along with the gauze mask of stacking, drive lead screw 27 through motor 28 and rotate, make layer board 22 highly descend gradually, the top surface of the gauze mask of stacking on the layer board 22 keeps in certain extent to the distance of support bar 4, make the gauze mask whereabouts distance on the support bar 4 remain unanimous all the time, improve the neatness of putting of gauze mask.

In some optional embodiments, the driving unit includes a second motor 21 vertically fixed on the horizontal plate 11, a rotary table 16 is fixed at the upper end of an output shaft of the second motor 21, a pressing block 17 is arranged at a position, close to the circumference, of the upper end of the rotary table 16, pressing plates 15 are fixed at opposite ends of the two connecting rods 14, a spring 10 is sleeved outside the connecting rods 14, one end of the spring 10 is fixed on the pushing plate 9, and the other end of the spring is fixed on the vertical plate 12.

For example, the second motor 21 is fixed on the transverse plate 11 by means of bolt connection, the press block 17 is arranged at a non-center of the rotary plate 16, the second motor 21 drives the rotary plate 16 to rotate, the rotary plate 16 drives the press block 17 to rotate, when the press block 17 rotates to a position close to the press plate 15, the press block 17 pushes the press plate 15, the press plate 15 drives the connecting rod 14 to move towards the direction of the conveyor belt 2, the spring 10 is stretched, when the press block 17 rotates to a position far away from the press plate 15, the spring 10 restores to the original state, the push plate 9 moves towards the direction far away from the conveyor belt 2, the press plate 15 is periodically pressed by the continuous rotation of the second motor 21, the push plate 9 moves towards the conveyor belt 2, meanwhile, under the restoring action of the spring 10, the push plate 9 moves towards the direction far away from the conveyor belt 2, so that the push plate 9 periodically gets close to and far away from the conveyor belt 2, the speed of the turntable 16 corresponds to the contact frequency of the pressing block 17 and the pressing plate 15, so that the frequency of the push plate 9 approaching to and away from the conveying belt 2 is controlled, the rotating speed of the second motor 21 is adjusted to enable the second motor to be matched with the conveying speed of the conveying belt 2, when the mask completely moves between the two push plates 9, the push plate 9 approaches to the conveying belt 2, then the push plate 9 is immediately away from the conveying belt 2, and when the next mask completely moves between the push plates 9, the push plate 9 stretches out again, so that the position of the passing mask is repeatedly adjusted.

In some optional embodiments, the turntable 16 is provided with a waist-shaped hole 19, the waist-shaped hole 19 is located on one radius of the turntable 16, the bottom of the pressing block 17 is provided with a screw 18 penetrating through the waist-shaped hole 19 to the lower end of the turntable 16, the screw 18 is provided with a locking nut 20 in threaded connection, and the locking nut 20 abuts against the lower end face of the turntable 16.

The bottom of briquetting 17 is equipped with screw rod 18, screw rod 18 can remove along the length direction in waist shape hole 19, and then adjust the position of briquetting 17, waist shape hole 19 is located a accent radius of carousel 16, can lock briquetting 17 fixedly through lock nut 20, briquetting 17 is more nearly apart from the 16 centre of a circle of carousel, briquetting 17 promotes the distance that clamp plate 15 removed and is shorter, and then the distance that push pedal 9 removed towards conveyer belt 2 is shorter, the length of gauze mask has been corresponded to the interval of two push pedal 9, interval when can being close to each other to push pedal 9 through the position of adjustment briquetting 17 is adjusted, in order to be applicable to not equidimension gauze mask like the position adjustment of adult gauze mask and children's gauze mask.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures, for simplicity of illustration and discussion, and so as not to obscure one or more embodiments of the disclosure. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the understanding of one or more embodiments of the present description, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the one or more embodiments of the present description are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that one or more embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.

While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. The mask conveying device is characterized by comprising two vertically arranged machine frames (1), a conveying belt (2) is horizontally arranged between the machine frames (1), a plurality of partition plates (3) are arranged on the outer ring of the belt body of the conveying belt (2) along the length direction of the conveying belt in an equidistant manner, transverse plates (11) are oppositely fixed on the back of each machine frame (1), vertical plates (12) are vertically fixed at the upper ends of the transverse plates (11), guide sleeves (13) perpendicular to the length direction of the conveying belt (2) are horizontally fixed at the upper ends of the vertical plates (12), connecting rods (14) in sliding connection are sleeved in the guide sleeves (13), push plates (9) parallel to the length direction of the conveying belt (2) are fixed at opposite ends of the two connecting rods (14), the two push plates (9) are symmetrically arranged on two sides of the conveying belt (2), and driving units are further arranged on the transverse plates (11), the driving unit is used for driving the connecting rod (14) to slide along the inner part of the guide sleeve (13), a supporting plate (22) is arranged between the racks (1), the supporting plate (22) is positioned below the conveying tail end of the conveying belt (2), a transferring unit is further arranged between the racks (1), and the transferring unit is used for vertically stacking the end mask conveyed by the conveying belt (2) on the supporting plate (22).

2. Mask delivery device according to claim 1, characterized in that the transfer unit comprises a baffle (5) and a fixing plate (8) fixed between the frames (1), the baffle (5) is close to the conveying tail end of the conveying belt (2), the fixing plate (8) is positioned on one side of the baffle (5) far away from the conveying belt (2), a first air cylinder (7) is fixed on the fixing plate (8), a piston rod of the first air cylinder (7) faces the conveying belt (2) and is parallel to the length direction of the conveying belt (2), a connecting strip (6) is fixed at the front end of a piston rod of the first cylinder (7), supporting strips (4) parallel to the length direction of the conveying belt (2) are fixed at the two ends of the connecting strip (6), support bar (4) run through in baffle (5), two support bar (4) are located the both sides of the upper end area body of conveyer belt (2) respectively.

3. Mask delivery device according to claim 2, characterized in that a support plate (30) is fixed between the frames (1), a second cylinder (29) which is vertically upward is fixed at the upper end of the support plate (30), a C-shaped fixing frame (23) is fixed at the top of a piston rod of the second cylinder (29), a screw rod (27) which is rotatably connected is vertically arranged on the inner side of the fixed frame (23), a slide rod (24) which is parallel to the screw rod (27) is also fixed on the inner side of the fixed frame (23), a sliding block (25) in threaded connection is arranged on the screw rod (27), the sliding rod (24) penetrates through the sliding block (25), one end of the sliding block (25) is fixed with a connecting block (26), the supporting plate (22) is fixed at the top of the connecting block (26), a first motor (28) is fixed at the bottom of the fixing frame (23), and an output shaft of the first motor (28) is connected with one end of the screw rod (27).

4. The mask conveying device according to claim 3, wherein the driving unit comprises a second motor (21) vertically fixed on the transverse plate (11), a rotary table (16) is fixed at the upper end of an output shaft of the second motor (21), a pressing block (17) is arranged at a position, close to the circumference, of the upper end of the rotary table (16), pressing plates (15) are fixed at opposite ends of the two connecting rods (14), a spring (10) is sleeved outside the connecting rods (14), one end of the spring (10) is fixed on the pushing plate (9), and the other end of the spring is fixed on the vertical plate (12).

5. The mask conveying device according to claim 4, wherein a waist-shaped hole (19) is formed in the rotary table (16), the waist-shaped hole (19) is located on one radius of the rotary table (16), a screw rod (18) penetrating through the waist-shaped hole (19) to the lower end of the rotary table (16) is arranged at the bottom of the pressing block (17), a locking nut (20) connected through threads is arranged on the screw rod (18), and the locking nut (20) abuts against the lower end face of the rotary table (16).