CN115535694A - Automatic mask production equipment and production method - Google Patents

Abstract

The invention relates to the field of mask production, and discloses automatic mask production equipment and a production method, wherein the automatic mask production equipment comprises a workbench, a conveying belt for conveying a mask, a material receiving frame corresponding to the conveying belt in position and a driving assembly for driving the conveying belt to move are arranged in the workbench, and the driving assembly comprises two belt wheels; the outer surface of the conveying belt is provided with N limiting assemblies for limiting the mask, the N limiting assemblies equally divide the outer surface of the conveying belt into N planes, and each limiting assembly comprises a movable plate movably arranged with the conveying belt; and N deformation assemblies for controlling the deflection of the corresponding movable plates are arranged on the inner wall of the conveying belt. According to the invention, through the matching among the driving assembly, the control assembly, the limiting assembly, the deformation assembly and the like, one side of the mask can be fixed, and the other side of the mask can be lifted, so that the mask can be moved to the material receiving frame in an approximately parallel and level state, and the mask is further positioned in a state that the outer surface faces downwards and the inner surface faces upwards to complete material receiving.

Description

Automatic mask production equipment and production method

Technical Field

The invention relates to the technical field of mask production, in particular to automatic mask production equipment and a production method.

Background

The mask is a sanitary article used for filtering air entering the mouth and the nose, is generally worn at the mouth and the nose to achieve the effect of blocking harmful gas, smell, droplets, viruses and other substances, is usually made of gauze, paper and other materials, and is very effective to wear when being used in the environment polluted by respiratory infectious diseases, dust and the like.

Chinese patent publication No. CN111717457B discloses a conveyor for mask conveying production, which comprises two fixing plates, and a transmission mechanism, a blanking mechanism, a smoothing structure and a pressing structure are arranged between the two fixing plates. By arranging the flattening structure and the conveying mechanism, when the mask is conveyed by the main conveying belt, the mask between the pressing plate and the auxiliary conveying belt can be flattened, the flaky mask is prevented from being folded in the conveying process, the structure of the mask is prevented from being damaged, the mask is slightly compressed, and the subsequent mask packaging is facilitated.

But the device can't guarantee the state of the interior gauze mask of unloading frame when using, and gauze mask both probably inner face falls down when carrying promptly, also can inner face falls down, and the state that can't guarantee the gauze mask is unified, simultaneously because the whole cleanliness that also can't guarantee the gauze mask of the difference that corresponds the face has certain use limitation.

Therefore, it is necessary to provide an automatic mask production apparatus and method to solve the above-mentioned technical problems.

Disclosure of Invention

The invention aims to provide automatic mask production equipment and a production method, which are used for solving the problems that masks in the background technology can fall down with the inner surfaces facing upwards or downwards during conveying, the unified state and the overall cleanliness of the masks cannot be guaranteed, and the like.

For realizing above-mentioned purpose, design one kind and can realize the spacing production facility of gauze mask when carrying for the gauze mask can be in order to fall to on connecing the work or material rest towards upward state in the face of one side.

Based on the above thought, the invention provides the following technical scheme: an automatic mask production device comprises a workbench, wherein a conveying belt for conveying a mask, a material receiving frame corresponding to the conveying belt and a driving assembly for driving the conveying belt to move are arranged inside the workbench, and the driving assembly comprises two belt wheels; the outer surface of the conveying belt is provided with N limiting assemblies for limiting the mask, the N limiting assemblies equally divide the outer surface of the conveying belt into N planes, and each limiting assembly comprises a movable plate movably arranged with the conveying belt; n deformation assemblies for controlling deflection of the corresponding movable plates are arranged on the inner wall of the conveying belt, N groups of through holes are formed in the surface of the conveying belt in a penetrating mode, and each group of through holes is formed in one side, far away from the corresponding movable plates, of each plane; the belt wheel close to the material receiving frame is movably sleeved with a control assembly which is fixedly connected with the workbench and corresponds to the position of the deformation assembly.

As a further scheme of the invention: the surface of conveyer belt runs through and has seted up a N holding tank, and the inside rotation of holding tank is installed with the equal fixed connection's of movable plate and deformation subassembly quarter butt, and the surface cover of quarter butt is equipped with the torsional spring.

As a further scheme of the invention: the deformation assembly comprises a shunting box which is fixedly connected with the conveying belt and covers the corresponding group of through holes, the surface of the shunting box is fixedly communicated with an air bag which is elastically arranged, and the surface of the air bag is fixedly provided with a first pull rope fixedly connected with the limiting assembly.

As a further scheme of the invention: the control assembly comprises a connecting rod fixedly connected with the workbench, and a convex block movably sleeved outside one of the belt wheels is fixedly installed at the end part of the connecting rod.

As a further scheme of the invention: the convex block is formed by connecting a large-radius outer edge and a small-radius outer edge, and the large-radius outer edge points to the upper side of the inclined material receiving frame.

As a further scheme of the invention: the driving assembly further comprises two supporting rods which are in rotating fit with the workbench, and the two belt wheels are fixedly sleeved on the two supporting rods respectively; the end part of one of the supporting rods is connected with a motor fixedly connected with the workbench in a transmission way.

As a further scheme of the invention: the surface of the workbench is penetrated and rotatably provided with a long rod fixedly connected with the material receiving frame, the outer surface of the long rod is sleeved with a torsional spring, the end part of the long rod is fixedly provided with a first gear, and the surface of the workbench is rotatably provided with a second gear in transmission connection with the first gear.

As a further scheme of the invention: the outer fixed surface of branch installs and is two arc racks of symmetry setting, and two arc racks all correspond with the position of second gear.

As a further scheme of the invention: the length of the plane is equal to one half of the circumference of the belt wheel, and when the support rod drives the belt wheel to rotate for a half circle, one of the arc-shaped racks is driven to be meshed with the second gear for transmission.

The invention also provides the following technical scheme: an automatic mask production method comprises the following steps:

s1, moving a mask from one side of a conveying belt, which is far away from a material receiving frame, and falling into the middle of two movable plates;

s2, starting a driving assembly to drive the conveying belt, the deformation assembly and the mask to move towards the material receiving frame through belt wheels;

s3, when the deformation assembly moves to be in contact with the control assembly, the movable plate on one side, far away from the material receiving frame, of the mask is driven to rotate anticlockwise to fix one side of the mask, and the other side of the mask is blown to be raised;

s4, the conveying belt continuously moves, the mask falls onto the material receiving frame in a state that the inner face of the mask faces upwards and the outer face of the mask faces downwards, the deformation assembly and the control assembly are separated to release the limit on the mask, and the deformation assembly and the control assembly sequentially reciprocate.

Compared with the prior art, the invention has the beneficial effects that: through the cooperation between drive assembly, control assembly, spacing subassembly and the deformation subassembly etc, can realize the stable transport to the gauze mask and connect the material, can make gauze mask one side fixed and the opposite side risees for the gauze mask can remove to receiving on the material frame with the state of an approximate parallel and level, and then makes the gauze mask be in outside inner face up state down and accomplish and connect the material pile up neatly, both can guarantee that the state of gauze mask is unified also guarantee the holistic cleanliness of gauze mask. The deformation component can realize the adjustment of the mask, can also realize the blowing positioning of the mask on the butt joint material frame, and the matching material frame plays a role in positioning the mask left and right, so that the convenience of later-stage taking and placing and the whole working efficiency are improved, and the practicability is higher.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a schematic view of the internal structure of the working table of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the first rope and the movable plate of the present invention;

FIG. 5 is a schematic view of the pulley and lug configuration of the present invention;

FIG. 6 is a schematic view of the first and second gears of the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 6;

FIG. 8 is a schematic view of the chute and side plate configuration of the present invention;

FIG. 9 is an enlarged view of the structure of FIG. 8 at C;

fig. 10 is a top view of the overall structure of the third embodiment of the present invention.

In the figure: 1. a work table; 2. a drive assembly; 3. a conveyor belt; 4. a control component; 5. a limiting component; 6. a deformation assembly; 7. a material receiving frame; 8. a moving assembly; 201. a strut; 202. a pulley; 203. a motor; 204. an arc-shaped rack; 301. a through hole; 302. accommodating a tank; 303. a plane; 401. a connecting rod; 402. a bump; 501. a movable plate; 502. a short bar; 601. a shunt box; 602. an air bag; 603. a first pull cord; 701. a long rod; 702. a first gear; 703. a second gear; 704. a chute; 801. a side plate; 802. a spring; 803. a second draw cord.

Detailed Description

The first embodiment is as follows:

referring to fig. 1 to 2, an embodiment of the present invention provides an automatic mask production apparatus, which is mainly used for conveying a mask so that an inner surface of the mask faces upward, the production apparatus includes a workbench 1, a conveyor belt 3 for conveying the mask, a material receiving frame 7 corresponding to a left side position of the conveyor belt 3, and a driving assembly 2 for driving the conveyor belt 3 to move are disposed inside the workbench 1, the driving assembly 2 includes two belt pulleys 202 for supporting the conveyor belt 3 and symmetrically disposed left and right, the belt pulleys 202 are integrally designed in an i-shape (as viewed from top in fig. 2), and the material receiving frame 7 is designed in an L-shape.

Be provided with on the surface of conveyer belt 3 and be used for realizing that gauze mask spacing N spacing subassembly 5,N spacing subassembly 5 divide into N planes 303 with the surface of conveyer belt 3 equally on conveyer belt 3, spacing subassembly 5 includes and is the movable plate 501 that the activity set up with conveyer belt 3, and movable plate 501 is perpendicular design for conveyer belt 3 during normal condition, is located between the movable plate 501 of two adjacent spacing subassemblies 5 promptly when the gauze mask moves on conveyer belt 3.

The inner wall of the conveyer belt 3 is provided with N deformation assemblies 6 for controlling the counterclockwise deflection of the movable plate 501; the surface of conveyer belt 3 runs through and has seted up N group's through-hole 301, and the movable plate 501 on every group's through-hole 301 and every spacing subassembly 5 is the corresponding setting, and the one side that corresponds movable plate 501 is kept away from at every plane 303 to every group's through-hole 301 setting, and the plane 303 through-hole 301 of top is located the left side position, and the plane 303 through-hole 301 of below is located the right side position.

The movable cover of annular sunken department of left side band pulley 202 is equipped with workstation 1 fixed connection and with the control assembly 4 that warp the 6 position of subassembly and correspond, and when conveyer belt 3 drove warp subassembly 6 and moved to control assembly 4, control assembly 4 extrudeed deformation subassembly 6 and makes it take place deformation, and then control movable plate 501 is anticlockwise deflection.

In this embodiment, the conveying belt 3 is a continuous annular belt, the number of the limiting assemblies 5, the number of the deforming assemblies 6 and the number of the planes 303 are all six, but the number of the limiting assemblies, the number of the deforming assemblies and the number of the planes 303 can also be five, seven or eight, but not one; and the number of the set of through holes 301 is three.

Referring to fig. 2 to 5, in the present embodiment, it is preferable that: the driving assembly 2 comprises two supporting rods 201 which are in rotating fit with the workbench 1, and two belt wheels 202 are respectively fixedly sleeved on the outer surfaces of the two supporting rods 201; the rear end of left side branch 201 extends to the outside of workstation 1 and the transmission is connected with workstation 1 fixed connection's motor 203, drives branch 201 and band pulley 202 through motor 203 and rotates and then drive conveyer belt 3 and remove.

Six holding tanks 302 have been seted up in the surface run-through of conveyer belt 3, and the inside rotation of holding tank 302 is installed with the equal fixed connection's of movable plate 501 and deformation subassembly 6 quarter butt 502, and the surface cover of quarter butt 502 is equipped with the torsional spring (not shown in the figure), and under the effect of torsional spring, the quarter butt 502 of top drives movable plate 501 and has the trend of anticlockwise deflection.

The deformation assembly 6 comprises a shunting box 601 fixedly connected with the conveying belt 3 and covering the through holes 301 of the corresponding group, the shunting box 601 is in a U-shaped strip design and covers the three through holes 301 of the corresponding group, the surface of the shunting box is fixedly communicated with an air bag 602, the air bag 602 is in an elastic design and can automatically recover after being extruded, the air bag 602 is in an oval design and the top of the air bag is attached to the inner wall of the conveying belt 3, a first pull rope 603 fixedly connected with the short rod 502 is fixedly installed on the surface of the air bag 602, and the pull rope can be released when the air bag 602 is extruded, so that the movable plate 501 rotates anticlockwise under the matching of a torsion spring and the short rod 502.

The control component 4 comprises a connecting rod 401 fixedly connected with the inner rear wall of the workbench 1, a convex block 402 movably sleeved on the left belt wheel 202 is fixedly installed at the end part of the connecting rod 401 far away from the workbench 1, and the convex block 402 is sleeved on the belt wheel 202 but cannot synchronously rotate along with the belt wheel 202; in the above structure, the bump 402 is designed above the oblique material receiving frame 7 (oblique upper left, viewing angle in fig. 5), and is formed by connecting an outer edge with a large radius at the oblique upper left and an outer edge with a small radius at the oblique lower right.

When the mask is used, the mask moves from the left side of the conveying belt 3 to the conveying belt 3 and is positioned between the two adjacent movable plates 501; the starting motor 203 drives the belt wheel 202 to rotate anticlockwise through the supporting rod 201, the belt wheel 202 drives the mask to move towards the left side through the conveying belt 3 in cooperation with the movable plate 501, the conveying belt 3 can drive the flow distribution box 601 and the air bag 602 to move synchronously when moving, at the moment, the first pull rope 603 is not moved, and the movable plate 501 is kept in a vertical state with the conveying belt 3.

When the airbag 602 moves to contact with the upper right of the bump 402, the airbag is extruded by the bump to deform, so that the widths of the two sides are increased, and the first pull rope 603 is released, at the moment, the short rod 502 and the movable plate 501 on the right side of the mask rotate anticlockwise under the action of the torsion spring, and the movable plate 501 gradually leans towards the right side of the mask; meanwhile, the air bag 602 exhausts air to the left side of the mask through the flow distribution box 601 and the through hole 301 when being extruded. As the conveyer belt 3 drives the airbag 602 to gradually move right, the airbag 602 is contacted with the top of the large-size outer edge of the bump 402, the deformation of the airbag 602 reaches the maximum at the moment, so that the widths of the two sides are converted into the maximum, the release amount and the exhaust amount of the first pull rope 603 also reach the maximum, the movable plate 501 is clamped on the right side of the mask by matching with the outer surface of the conveyer belt 3 under the action of the torsion spring, and the left side of the mask is lifted under the exhaust action; along with the continuation of conveyer belt 3 drive gasbag 602 remove, gasbag 602 recovers the first stay cord of pulling 603 along lug 402 gradually (to the adsorption of gauze mask when recovering in order to reduce gasbag 602, can be keeping away from one side of corresponding through-hole 301 with the induction port design of gasbag 602, and the cooperation check valve will be breathed in and give vent to anger and set the one-way type to), make movable plate 501 reset and relieve spacing to the gauze mask right side, the gauze mask can drop on the material receiving frame 7 to the inside face up state down outside this moment. Along with the continuous material receiving of material receiving frame 7 to the gauze mask, gasbag 602 exhausts under the effect of lug 402, can also play the effect of blowing the location to the gauze mask on the material receiving frame 7.

Through the cooperation of structures such as conveyer belt 3, movable plate 501, gasbag 602 and lug 402, can realize the stable transport of gauze mask and connect the material, connect the material in-process to make the fixed opposite side of gauze mask one side rise for the gauze mask can remove to receiving on the material frame 7 with the state of an approximate parallel and level, and then make the gauze mask be in outside inner face up state down and accomplish and connect the material pile up neatly, both can guarantee that the state of gauze mask is unified also guarantee the holistic cleanliness of gauze mask. The gasbag 602 not only can realize the regulation to the gauze mask, can also realize docking blowing of the last gauze mask of work or material rest 7 and fix a position, the material receiving frame 7 that cooperates the L shape promptly blows with left gasbag 602, can play the effect to fixing a position about the gauze mask, makes things convenient for getting in later stage to put, and holistic practicality is higher.

The second embodiment:

referring to fig. 1 to 6, on the basis of the first embodiment, a long rod 701 fixedly connected with the material receiving frame 7 is rotatably installed on the rear surface of the workbench 1 in a penetrating manner, so as to position the material receiving frame 7 in the workbench 1; a torsion spring (not shown in the figure) is sleeved on the outer surface of the long rod 701, the material receiving frame 7 can keep a horizontal state under the action of the torsion spring, a proper distance between the material receiving frame and the conveying belt 3 can be kept, and material receiving at each time can be better completed; the rear end of the long rod 701 is fixedly provided with a first gear 702, and the rear surface of the workbench 1 is also rotatably provided with a second gear 703 in transmission connection with the first gear 702.

In order to realize that the mask is conveyed to the material receiving frame 7 from the conveying belt 3 every time, the material receiving frame 7 deflects anticlockwise and moves, two arc-shaped racks 204 which are symmetrically arranged are fixedly installed on the outer surface of the left supporting rod 201, the arc-shaped racks 204 correspond to the second gear 703 in position, and when the arc-shaped racks 204 rotate along with the supporting rod 201, the second gear 703 can drive the first gear 702 to rotate anticlockwise.

Referring to fig. 6 to 7, in the present embodiment, it is preferable that: in order to realize synchronous deflection of mask conveying and receiving frame 7 at each time, the length of the plane 303 is designed to be equal to one half of the circumference of the belt wheel 202, and the two arc-shaped racks 204 are respectively installed on two corresponding parts of the supporting rod 201 (the belt wheel 202), i.e. the belt wheel 202 rotates for a half circle to drive the plane 303 to move away to finish one mask conveying, and drive the arc-shaped rack 204 to rotate so as to drive the first gear 702 to rotate once.

When the mask is used, the starting motor 203 drives the belt wheel 202 and the arc-shaped rack 204 to rotate anticlockwise through the supporting rod 201, and the belt wheel 202 drives the mask, the flow dividing box 601 and the air bag 602 to move to the left side through the conveying belt 3; when the air bag 602 moves to contact with the upper right of the bump 402, deformation occurs to release the first pull rope 603 and exhaust to the left side of the mask through the through hole 301, at this time, the movable plate 501 rotates anticlockwise under the cooperation of the torsion spring and the long rod 701, the arc-shaped rack 204 and the second gear 703 are in meshed transmission, and then the first gear 702 is driven to rotate anticlockwise, the first gear 702 drives the material receiving frame 7 to move synchronously through the long rod 701, so that the material receiving frame 7 rotates anticlockwise by taking the long rod 701 as a base point. With the gradual right movement of the air bag 602 driven by the conveyor belt 3, the deformation amount of the air bag 602 reaches the maximum, so that the release amount and the air displacement of the first pulling rope 603 also reach the maximum, and finally the mask falls onto the material receiving frame 7 in a state that the outer surface faces downwards and the inner surface faces upwards.

After the mask is conveyed, the arc-shaped gear is separated from the second gear 703, and at this time, under the action of the torsion spring, the first gear 702, the second gear 703, the long rod 701 and the material receiving frame 7 are automatically reset to be ready to receive the next mask, and the process is repeated.

In the first embodiment, although the blowing matching receiving frame 7 of the airbag 602 plays a role in positioning the mask left and right, the positioning effect still needs to be improved, that is, the mask cannot be completely aligned left and right on the receiving frame 7, and certain use limitation exists. Compared with the first embodiment, the conveying belt 3, the material receiving frame 7, the first gear 702, the arc-shaped rack 204 and the like are matched to drive the material receiving frame 7 to rotate in a reciprocating manner by taking the long rod 701 as a base point, the mask slides along the material receiving frame 7 obliquely to the left and the lower side in the process of anticlockwise rotation, the left side of the mask abuts against the material receiving frame 7, and the mask can be completely aligned in the left and right directions by matching with air blowing of the through holes 301; when the anticlockwise rotation process, the height of the material receiving frame 7 relative to the upper conveying belt 3 is increased, so that the mask can be conveyed more smoothly, the number of masks which can be stacked on the material receiving frame 7 at a single time is increased relatively, and meanwhile, the mask is linked with the rotation of the long rod 701 and the air blowing of the air bag 602, and more requirements in actual use are met.

Example three:

referring to fig. 1 to 6, on the basis of the second embodiment, two sliding grooves 704 are formed on the surface of the material receiving frame 7, the sliding grooves 704 are distributed side by side left and right along the workbench 1, the moving assemblies 8 fixedly connected with the workbench 1 are slidably mounted inside the sliding grooves 704, and when the material receiving frame 7 rotates counterclockwise, the two moving assemblies 8 can move toward the middle along the sliding grooves 704 to position the mask front and back.

Referring to fig. 6 to 10, in the present embodiment, it is preferable that: the moving assembly 8 comprises a side plate 801 which is in sliding fit with the sliding groove 704 in a front-back manner, and the side plate 801 is in a T-shaped design and cannot fall off from the sliding groove 704, so that the bottoms of the sliding groove 704 and the side plate 801 can be in a dovetail design; a second rope 803 is fixedly installed between the rear side of the front side plate 801 (the front side of the rear side plate 801) and the inner rear wall (the inner front wall) of the table 1, the second rope 803 is designed to penetrate through the rear surface (the front surface) of the material receiving frame 7, and a spring 802 for returning the side plate 801 after moving is fixedly installed between the surface of the side plate 801 and the inner wall of the chute 704.

When the mask conveying device is used, the starting motor 203 drives the supporting rod 201, the belt wheel 202 and the arc-shaped rack 204 to rotate anticlockwise, the belt wheel 202 drives the shunting box 601 and the air bag 602 to move leftwards through the conveying belt 3 to finish mask conveying, the arc-shaped rack 204 is matched with structures such as the second gear 703, the first gear 702 and the long rod 701 to drive the material receiving frame 7 to swing back and forth once by taking the long rod 701 as a base point, the working process and the beneficial effects of the part are the same as those in the second embodiment, and repeated description is omitted here. When the material receiving frame 7 rotates anticlockwise, the two side plates 801 are driven to move synchronously through the sliding groove 704, the two side plates 801 can be folded towards the middle along the sliding groove 704 and pull the second spring 802 under the action of the corresponding second pull ropes 803, and the mask on the material receiving frame 7 is positioned forwards and backwards in the folding process; when the receiving rack 7 is reset clockwise, the two side plates 801 are automatically separated to the two sides along the sliding groove 704 under the action of the spring 802 and the second pull rope 803, and thus the two side plates reciprocate.

In the second embodiment, although the complete positioning of the mask in the left and right directions is realized by blowing through the rotating fit air bag 602 of the material receiving frame 7, the front and back positioning of the mask on the material receiving frame 7 can not be ensured, and then the later stage taking and placing can still be influenced, so that certain use limitation exists. Compared with the second embodiment, through the matching of the side plate 801, the material receiving frame 7, the second pull rope 803, the workbench 1 and other structures, when the material receiving frame 7 rotates anticlockwise, the two pull ropes can be driven to fold towards the middle, and the mask on the material receiving frame 7 is effectively positioned in the front-back direction; can two curb plates 801 when connecing work or material rest 7 clockwise to the separation of both sides, can not influence the transport of follow-up gauze mask, get up with the reciprocating rotation that connects work or material rest 7 and the setting linkage of workstation 1 simultaneously, the suitability is stronger.

Example four:

referring to fig. 1 to 10, an embodiment of the present invention provides an automatic mask manufacturing method, which is completed by any one of the first to third embodiments, and thus has corresponding advantages. The method comprises the following steps: the first step mask moves upwards from the left side of the conveyer belt 3 to the conveyer belt 3 and falls into the middle of the two movable plates 501; a second step, a starting motor 203 drives the conveying belt 3, the air bag 602 and the mask to move towards the material receiving frame 7 through a support rod 201 and a belt wheel 202; thirdly, when the air bag 602 moves to be in contact with the bump 402, the movable plate 501 on the right side of the mask is driven to rotate anticlockwise to fix the mask, and air is blown to the left side of the mask through the shunting box 601 and the through hole 301 to lift the mask; in the fourth step, as the conveyer belt 3 moves continuously, the mask falls onto the material receiving frame 7 with the inner surface facing upwards and the outer surface facing downwards, and the air bag 602 is separated from the bump 402 so that the movable plate 501 releases the limit on the right side of the mask, and the operation is repeated.

Claims (10)

1. An automatic mask production device comprises a workbench and is characterized in that a conveying belt for conveying a mask, a material receiving frame corresponding to the conveying belt in position and a driving assembly for driving the conveying belt to move are arranged inside the workbench, and the driving assembly comprises two belt wheels; the outer surface of the conveying belt is provided with N limiting assemblies for limiting the mask, the N limiting assemblies equally divide the outer surface of the conveying belt into N planes, and each limiting assembly comprises a movable plate movably arranged with the conveying belt; n deformation assemblies for controlling deflection of the corresponding movable plates are arranged on the inner wall of the conveying belt, N groups of through holes are formed in the surface of the conveying belt in a penetrating mode, and each group of through holes is formed in one side, far away from the corresponding movable plates, of each plane; the belt wheel close to the material receiving frame is movably sleeved with a control assembly which is fixedly connected with the workbench and corresponds to the position of the deformation assembly.

2. The automatic mask production equipment according to claim 1, wherein the surface of the conveying belt is provided with N accommodating grooves in a penetrating manner, short rods fixedly connected with the movable plate and the deformation assembly are rotatably mounted inside the accommodating grooves, and torsion springs are sleeved on the outer surfaces of the short rods.

3. The automatic mask production equipment according to claim 1, wherein the deformation assembly comprises a flow distribution box fixedly connected with the conveyor belt and covering the corresponding group of through holes, an air bag is elastically connected to the surface of the flow distribution box, and a first pull rope fixedly connected with the limiting assembly is fixedly installed on the surface of the air bag.

4. The automatic mask production equipment according to claim 1, wherein the control assembly comprises a connecting rod fixedly connected with the workbench, and a projection movably sleeved outside one of the pulleys is fixedly installed at the end of the connecting rod.

5. The automatic mask production equipment according to claim 4, wherein the projection is formed by connecting a large-radius outer edge and a small-radius outer edge, and the large-radius outer edge is directed above the inclined material receiving frame.

6. The automatic mask production equipment according to claim 1, wherein the driving assembly further comprises two support rods rotatably engaged with the worktable, and two belt wheels are fixedly sleeved on the two support rods respectively; the end part of one of the supporting rods is connected with a motor fixedly connected with the workbench in a transmission way.

7. The automatic mask production device according to any one of claims 1 to 6, wherein a long rod fixedly connected with the material receiving frame is installed on the surface of the workbench in a penetrating and rotating mode, a torsion spring is sleeved on the outer surface of the long rod, a first gear is fixedly installed at the end of the long rod, and a second gear in transmission connection with the first gear is installed on the surface of the workbench in a rotating mode.

8. The automatic mask production equipment according to claim 7, wherein two arc-shaped racks are symmetrically arranged on the outer surface of the supporting rod, and the two arc-shaped racks correspond to the second gear in position.

9. The automatic mask production equipment according to claim 8, wherein the length of the plane is equal to one half of the circumference of the belt wheel, and when the support rod drives the belt wheel to rotate for a half circle, one of the arc-shaped racks is driven to be meshed with the second gear for transmission.

10. An automatic mask production method is characterized by comprising the following steps:

s1, moving a mask from one side of a conveying belt, which is far away from a material receiving frame, and falling into the middle of two movable plates;

s2, starting a driving assembly to drive the conveying belt, the deformation assembly and the mask to move towards the material receiving frame through belt wheels;

s3, when the deformation assembly moves to be in contact with the control assembly, the movable plate on one side, far away from the material receiving frame, of the mask is driven to rotate anticlockwise to fix one side of the mask, and air is blown to the other side of the mask to lift the mask;

s4, the conveying belt continuously moves, the mask falls onto the material receiving frame in a state that the inner face of the mask faces upwards and the outer face of the mask faces downwards, the deformation assembly and the control assembly are separated to release the limit on the mask, and the deformation assembly and the control assembly sequentially reciprocate.

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