A mask production device

Abstract

The present invention relates to the field of masks, and in particular to a mask production device, including a mask raw material unwinding device, an edge sealing device, an annular cutting device, a conveying device, and a waste rejection device arranged on two or more conveying devices, wherein a camera can be connected to an external system, the external system detects the number of masks passing through the camera, and the external system controls the clamping claws to sort out the unqualified masks on the conveying device, thereby avoiding high labor costs and high error rates, and unqualified masks are detected in advance, and cannot be distinguished and accurately sorted out manually, and a third composite mechanism compositely fixes a sponge strip and a nose bridge strip, the nose bridge strip is glued into the groove at the top of the sponge strip, and the glued nose bridge strip is not easy to separate from the sponge strip, which can avoid the sponge strip and the nose bridge strip being easily separated during the conveying process or the nose bridge strip sliding out laterally from the sponge strip during use. It solves the problem that quality inspectors are easily fatigued from working for a long time a day, resulting in a high probability of unqualified products in the masks sold.

Description

Technical Field

[0001] The present invention relates to the field of masks, and in particular to a mask production device. Background Art

[0002] At present, China Patent No.: CN201810983633.7 discloses a fully automatic mask production line, including a machine and multiple feed rollers. Three feed rollers are provided at the front end of the machine, and a stacking conveying roller for stacking three layers of non-woven fabrics is provided on the machine after the feed rollers. A pleating device and a rib feeding device are respectively provided behind the stacking conveying rollers, and the pleating device includes a pleating roller and a pleating plate; the rib feeding device includes a rib feeding upright plate, and the rib feeding upright plate is fixed on the machine. Two rib feeding rollers are provided on the left part of the front of the rib feeding upright plate, and a rib slitting roller is provided on the right part. A rib guide tube is provided at the lower part of the rib feeding roller, and the top surface of the rib guide tube is fixed on the rib feeding upright plate through a fixing plate, and the bottom surface of the rib feeding upright plate is kept at a certain distance from the top surface of the machine. An opening corresponding to the rib feeding roller is opened on the top surface of the tube, and a roller in contact with the rib feeding roller is provided below the rib feeding roller. The outer end of the roller shaft is arranged on the side wall of the rib guide tube away from the rib feeding vertical plate. It discloses the general structure of the existing mask production line, which is the equipment used for most existing mask production. This equipment often arranges quality inspectors to inspect the masks passing through the finished product conveyor rack; however, when the masks are subsequently packaged, they are transported and packaged at a reduced speed through multiple conveyor racks, which requires multiple quality inspectors. The long-term use has high labor costs, and the quality inspectors have poor eyesight. The quality inspectors are prone to fatigue after working for a long time a day, resulting in a high probability of unqualified products in the masks sold, which poses a safety hazard to the wearers, and the rework of the masks in the later stage is prone to waste of raw materials. Summary of the invention

[0003] Therefore, in view of the above problems, the present invention proposes a mask production device, which solves the technical problems of high labor cost and high error rate of manual quality inspection.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a mask production device, comprising a frame, a plurality of guide rollers, a plurality of transition conveyor belts and two or more filter material unwinding devices arranged on the frame according to the assembly line, an inner non-woven fabric unwinding device, a bulky non-woven fabric unwinding device, a first compounding device for rolling and compounding the unwinding material of the bulky non-woven fabric unwinding device to form a long strip of mask raw material, a nose bridge strip unwinding device, a nose bridge strip cutting device for cutting the continuous strip of nose bridge strip unwinding from the nose bridge strip unwinding device into a single nose bridge strip, an outer non-woven fabric unwinding device, and a second compounding device for compounding the material unwinding from the outer non-woven fabric unwinding device with the mask raw material , an edge sealing device, an annular cutting device, a waste suction device, a folding conveying device, a material dividing device, more than two conveying devices, and a waste rejecting device arranged on more than two conveying devices, the waste rejecting device includes a fixed frame, a swing arm is hinged on the top of the fixed frame, a first motor for driving the swing arm to rotate is provided on the fixed frame, the swing arm is fixedly provided with a cylinder, a second motor is fixedly provided at the bottom end of the cylinder, the second motor is rotatably connected to the third motor at the bottom end, a driving motor is fixedly provided at the bottom end of the third motor, the driving motor is rotatably connected to the clamping claw at the bottom end of the swing arm, the top of the swing arm is detachably connected to a fixed seat, the top of the fixed seat is rotatably connected to an adjusting frame, and the top of the adjusting frame is hinged with a camera.

[0005] Furthermore, the clamping claw is angular, and an anti-slip groove is provided on the clamping surface of the clamping claw.

[0006] Furthermore, the frame is also provided with a third composite device, a sponge unwinding device located at the input end of the third composite device, and a first glue dispensing machine located between the third composite device and the sponge unwinding device; the third composite device is located between the sponge unwinding device and the nose bridge strip cutting device.

[0007] Furthermore, the frame is also provided with a second glue dispenser located at the input end of the second composite device.

[0008] Furthermore, the nose bridge strip cutting device includes a nose bridge strip cutting device body, a channel arranged at the bottom end of the nose bridge strip cutting device body, a cutter arranged in the nose bridge strip cutting device body and sliding up and down, a protrusion arranged at the top of the cutter, a rotating arm arranged at the upper end of the cutter, an empty groove arranged laterally in the nose bridge strip cutting device body, a grinding block arranged in the empty groove, a spring arranged between the bottom end of the protrusion and the nose bridge strip cutting device body, and a servo motor for driving the rotating arm to rotate, the right end of the grinding block is elastically connected to the nose bridge strip cutting device body, and the beveled surface of the bottom end of the cutter fits with the grinding block.

[0009] By adopting the above technical solution, the beneficial effects of the present invention are:

[0010] The mask production device includes a waste rejection device. The cylinder on the waste rejection device pushes out the front clamping claw. The direction of the clamping claw is toward the masks on the conveyor line. The position can be fine-tuned by a motor during the clamping process to sort out unqualified masks. The sorting process has high accuracy. After the production of the masks is completed, when they need to be disinfected or packaged, they are transported to multiple conveying devices through the dividing device. The transmission speed of the conveying device is slowed down. The camera can be connected to an external system. The external system detects the number of masks that pass through the camera, and then identifies the specific location of the unqualified masks detected in the previous process. The external system controls the clamping claw to sort the unqualified masks on the conveyor. The sorting of unqualified masks has high accuracy. Unqualified masks are detected in advance, avoiding the high error rate of manual sorting of unqualified masks. Each conveying device is equipped with a waste rejection device, and the average cost of long-term use is low, avoiding the problem of high labor costs; at the same time, during the clamping process, the external system detects through the camera, controls the first motor, the second motor and the third motor to fine-tune the x-axis, y-axis and z-axis of the clamping claw. The direction of the clamping claw can be flexibly adjusted, the machine has a fast response speed, and the sorting is rapid, so that the unqualified masks on the conveyor belt can be accurately and quickly clamped and sorted, avoiding the masks passing through multiple conveying devices, the front and rear positions of the masks on the conveying devices partially overlap or the front and rear positions are different. The ordinary air blowing sorting mechanism is easy to blow the qualified masks into the waste barrel together.

[0011] Furthermore, the provision of anti-slip grooves on the clamping claws increases the frictional force when the clamping claws clamp the mask, thereby achieving the beneficial effect of preventing the mask from being easily separated during clamping.

[0012] Furthermore, the sponge unwinding device is set up. During the sponge strip conveying process, the first glue dispensing machine applies glue or dispenses glue to the middle part of the bottom end surface of the sponge strip, and the third composite mechanism composites and fixes the sponge strip and the nose bridge strip. The nose bridge strip is sunk into the groove at the top of the sponge strip and glued. The glue-coated nose bridge strip is not easily separated from the sponge strip, which can avoid the sponge strip and the nose bridge strip being easily separated during transportation or the nose bridge strip sliding out of the sponge strip laterally during use; the composite sponge strip is cut by the nose bridge strip cutting device to form a single sponge strip, and the sponge strip is welded to the mask raw material through the edge sealing device. The equipment and process can be used for sea The sponge strip and the nose bridge strip are cut and pasted at one time, which saves production costs and avoids the need for a separate cutting and pasting process for the sponge strip, which affects the production speed and leads to reduced production capacity. The left and right sides of the sponge strip are cut into inclined surfaces by a circular cutting knife device. Since the inclined surface narrows from the outside to the inside, the lateral width of the sponge strip is greater than the lateral width of the nose bridge strip. Direct contact with the human face can be avoided during wearing, and scratches caused by contact between the two ends of the sponge strip and the human face when the mask is worn can be prevented. When the mask is worn, the sponge strip is soft and comfortable, which can prevent discomfort caused by contact between the nose bridge strip and the nose when worn for a long time.

[0013] Furthermore, the second glue dispenser applies glue to the inner side of the inner non-woven fabric, which can strengthen the fit between the sponge strip and the inner non-woven fabric.

[0014] Furthermore, the grinding block is set, and the rotating arm rotates according to a predetermined speed. When the rotating arm rotates one circle, it touches the protrusion at the top of the cutter, so that when the cutter moves downward, since the left end face of the grinding block fits with the inclined surface of the cutter, the grinding block will grind the inclined surface of the bottom end of the cutter to keep the cutter sharp. Under the action of the spring force, the grinding block moves to the right, and the cutter moves downward to cut the passing nose bridge. After completion, the cutter rebounds and resets, and the grinding block frictionally fits with the inclined surface of the bottom end of the cutter again, avoiding the problem of long-term use of the cutter causing setbacks due to wear and tear, and the material is easy to stick to the cutter, which can extend the service life of the cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 yes Figure 1 A simplified structural diagram of

[0017] Figure 3 It is a schematic front view of the structure of the waste rejection device of the present invention;

[0018] Figure 4 It is a schematic structural diagram of the waste rejection device of the present invention;

[0019] Figure 5 It is a schematic diagram of a local simplified structure of the present invention;

[0020] Figure 6 It is a partial schematic diagram of the structure of the processing and forming mask raw materials and sponge strips fitting together of the present invention;

[0021] Figure 7 It is a top view schematic diagram of the processing and forming mask raw material and sponge strip fitting structure of the present invention;

[0022] Figure 8 It is a schematic cross-sectional view of the structure of the processed and formed sponge strip of the present invention;

[0023] Fig. 9 is a simplified structural diagram of Embodiment 2 of the present invention;

[0024] Fig.10 It is a top view schematic diagram of the mask raw material and sponge strip fitting structure processed and formed in Example 2 of the present invention. DETAILED DESCRIPTION

[0025] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0026] refer to Figures 1 to 8The first embodiment provides a mask production device, including a frame, a plurality of guide rollers 101, a plurality of transition conveyor belts 102, and two or more filter material unwinding devices 103, an inner non-woven fabric unwinding device 104, a bulky non-woven fabric unwinding device 105, a first composite device 106, a nose bridge strip unwinding device 21, a nose bridge strip cutting device 22, an outer non-woven fabric unwinding device 107, a second composite device 108, an edge sealing device 23, a circular cutting device 24, a waste suction device 25, a folding conveying device 26, The material dividing device 29, two or more conveying devices 28, and the waste rejection device 27 arranged on the two or more conveying devices 28, the first compounding device 106 is used to roll and compound the materials unrolled by the inner non-woven fabric unwinding device 104 and the bulky non-woven fabric unwinding device 105 to form a long strip of mask raw materials, the nose bridge strip cutting device 22 is used to cut the continuous strip of nose bridge strip 302 into a single nose bridge strip 302, and the second compounding device 108 is used to compound the material unrolled by the outer non-woven fabric unwinding device 107 with the mask raw materials. , and covers the single nose bridge strip 302 on the mask raw material, the annular cutting knife device 24 is used to roll-cut the mask raw material according to the original designed mask shape, the waste suction device 25 is used to suck out the edge waste cut by the annular cutting knife device 24, and the folding and conveying device 26 is used to fold and convey the mask raw material after roll cutting, the nose bridge strip cutting device 22 includes a nose bridge strip cutting device body 220, a channel 221 arranged at the bottom end of the nose bridge strip cutting device body 220, and a channel 222 arranged at the upper end of the nose bridge strip cutting device body 220. A downward sliding cutter 222, a protrusion 223 provided at the top of the cutter 222, a rotating arm 224 provided at the upper end of the cutter 222, an empty slot 225 provided laterally in the nose bridge strip cutting device body 220, a grinding block 226 provided in the empty slot 225, a spring 227 provided between the bottom end of the protrusion 223 and the nose bridge strip cutting device body 220, and a servo motor 228 for driving the rotating arm 224 to rotate, the right end of the grinding block 226 is elastically connected to the nose bridge strip cutting device body 220, and the beveled surface at the bottom end of the cutter 222 fits with the grinding block 226.

[0027] The rotating arm rotates according to the preset speed. When the rotating arm rotates one circle, it touches the protrusion on the top of the cutter, causing the cutter to move downward. Since the left end face of the grinding block fits with the inclined surface of the cutter, the grinding block will grind the cut surface of the bottom end of the cutter to keep the cutter sharp. The cutter moves downward to cut the passing nose bridge, and the grinding block moves to the right. After completion, the cutter rebounds and resets, and the grinding block will frictionally fit with the inclined surface of the bottom end of the cutter again, avoiding the problem of long-term use of the cutter causing setbacks and material sticking to the cutter, which can extend the use time of the cutter.

[0028] The edge sealing device 23 is used for ultrasonic or hot pressing the edge of the mask and the bridge of the nose strip 302, the annular cutter device 24 is used to complete the shaping of the mask, the folding and conveying device 26 is used to fold the cut mask inward, the waste suction device 25 is used to collect the waste from the edges of the mask, the material separation device 29 is used to convey the mask to more than two conveying devices 28, the material separation device 29 is used to convey the sheet-like mask to more than two conveying devices 28, the waste rejection device 27 is used to sort the unqualified masks on more than two conveying devices 28, the waste rejection device 27 is provided with a fixed frame 2701, the top of the fixed frame 2701 is hinged with a swing arm 2703, the fixed frame 2701 is provided with a first motor 2702 for driving the swing arm 2703 to rotate, and the swing arm 2703 is fixed with a cylinder 2704, and a second motor 2705 is fixed at the bottom end of the cylinder 2704. The bottom end of the second motor 2705 is rotatably connected to a third motor 2706. The bottom end of the third motor 2706 is fixed with a driving motor 2707. The bottom end of the driving motor 2707 is rotatably connected to a clamping claw 2708. The clamping claw 2708 is angular, and an anti-slip groove 2712 is provided on the clamping surface of the clamping claw 2708. The anti-slip groove on the clamping claw 2708 increases the friction force of the clamping claw in the process of clamping the mask, thereby achieving the beneficial effect of not being easily separated from the mask during clamping; the top of the swing arm 2703 is detachably connected to a fixed seat 2709, and the top of the fixed seat 2709 is rotatably connected to an adjusting frame 2710, and the top of the adjusting frame 2710 is hinged with a camera 2711.

[0029] The cylinder is connected to the external air pipeline, and the cylinder on the waste rejection device pushes out the front clamping claw, and the direction of the clamping claw is toward the masks on the conveyor line. The position can be fine-tuned by the motor during the clamping process to sort out the unqualified masks. The sorting process is highly accurate, and when the masks need to be disinfected or packaged after production, they are transported to multiple conveying devices through the dividing device. The transmission speed of the conveying device is slowed down, and the camera can be connected to the external system. The external system detects the number of masks passing through the camera, and then identifies the specific location of the unqualified masks detected in the previous process. The external system controls the clamping claw to sort the unqualified masks on the conveying device. The system can perform sorting, thus avoiding the low efficiency of manual sorting, and the unqualified masks have been detected in advance, which cannot be distinguished and sorted out accurately by humans; at the same time, during the clamping process, the external system detects through the camera, controls the first motor, the second motor and the third motor to fine-tune the x-axis, y-axis and z-axis of the clamping claws, and the direction of the clamping claws can be flexibly adjusted, and the machine has a fast reaction speed and rapid sorting, so that the unqualified masks on the conveying device can be accurately and quickly clamped and sorted, avoiding the masks passing through multiple conveying devices, the front and rear positions of the masks on the conveying devices partially overlap or the front and rear positions are different. The ordinary air blowing sorting mechanism is easy to blow the qualified masks into the waste bin together.

[0030] The frame is also provided with a third composite device 111, a sponge unwinding device 109 located at the input end of the third composite device 111, and a first glue dispenser 110 located between the third composite device 111 and the sponge unwinding device 109. The third composite device is located between the sponge unwinding device and the nose bridge strip cutting device. The first glue dispenser 110 is used to apply glue to the bottom end groove 301 of the continuous strip sponge strip 3 unwinded by the sponge unwinding device 109. The third composite device 111 is used to glue the sponge strip 3 and the bottom end groove 301 with the nose bridge strip 302. Bonding, the edge sealing device 23 is used to heat-fuse the edge position of the mask raw material, and at the same time, the edge sealing device 23 heat-fuse the edge of the sponge strip 3 bonded to the nose bridge strip 302 with the mask raw material, and the third composite device 111 is used to contact and bond the groove 301 on the bottom end surface of the sponge strip 3 with the nose bridge strip 302; when the sponge strip 3 with the nose bridge strip 302 is directly purchased, after a long period of transportation or after unwinding and rolling and conveying over a long distance through the production line, it is easy for the sponge strip to separate from the nose bridge strip or the adhesion between the sponge strip and the nose bridge strip is reduced, resulting in an increase in the unqualified rate of produced masks.

[0031] During the conveying process of the sponge strip, the first glue dispensing machine applies glue or dispenses glue to the groove at the bottom end of the sponge strip, and the third composite mechanism composites and fixes the sponge strip and the nose bridge strip, and the nose bridge strip is sunk into the groove at the top of the sponge strip and glued. The glue-coated nose bridge strip is not easy to separate from the sponge strip, which can prevent the sponge strip and the nose bridge strip from being easily separated during transportation or the nose bridge strip from sliding laterally from the sponge strip during use; the composite sponge strip is cut by the nose bridge strip cutting device to form a single sponge strip, and the sponge strip is welded to the raw material of the mask through the edge sealing device. The equipment and process can cut and paste the sponge strip and the nose bridge strip at one time, saving production costs, and at the same time avoiding the need to set up a separate cutting and pasting process for the sponge strip, which affects the production speed and reduces production capacity.

[0032] Refer to Fig. 9 and Fig.10, the second embodiment discloses a mask production device based on the same invention, which differs from the first embodiment in that: a second glue dispenser 112 is added to the frame and is located at the input end of the second composite device, and the inner non-woven fabric unwinding device is changed to be input from the upper end of the assembly line, and the inner non-woven fabric is transported toward the top of the assembly line, and the outer non-woven fabric is input from the lower end of the assembly line, and the outer non-woven fabric is transported toward the bottom of the assembly line. The first composite device 106 is used to roll and compound the materials unwound by the inner non-woven fabric unwinding device 104, the bulky non-woven fabric unwinding device 105, and the outer non-woven fabric unwinding device to form long strips of mask raw materials, and the second glue dispenser 112 is used to produce The nose bridge strip of the inner non-woven fabric of the mask raw material on the line is intermittently coated with glue, and the sponge strip 3 is arranged on the inner side of the mask raw material. After the nose bridge strip cutting device 22 cuts the nose bridge strip 302, the nose bridge strip 302 is bonded to the glue dispensing position of the second glue dispenser 112 on the inner non-woven fabric, and then the annular cutter device 24 cuts the left and right sides of the sponge strip 3 on the mask into bevels, and the bevels narrow from the outside to the inside, so that the lateral width of the sponge strip 3 is greater than the lateral width of the nose bridge strip 302. The annular cutter device 24 is used in the process of cutting the mask raw material into sheets with ear pieces, and is used to narrow the left and right edges of the sponge strip 3 from the outside to the inside and bevel to form a cut surface 303, and the lateral width of the sponge strip 3 is greater than the lateral width of the nose bridge strip 302.

[0033] The left and right sides of the sponge strip on the mask are cut into bevels through a circular cutting device. As the bevel narrows from the outside to the inside, the lateral width of the sponge strip is greater than the lateral width of the nose bridge strip, so direct contact with the human face can be avoided during wearing, and scratches caused by contact between the two ends of the sponge strip and the human face can be prevented. When the sponge strip fits the face for use, it is not only comfortable, but also can enhance the sealing between the mask and the human face, preventing the problem of hot air exhaled through the gap between the nose bridge strip and the face when wearing the mask, causing the eyes to fog up easily.

[0034] The above-mentioned filter material unwinding device, inner layer non-woven fabric unwinding device, bulky non-woven fabric unwinding device, outer layer non-woven fabric unwinding device, and nose bridge strip unwinding device are all ordinary unwinding mechanisms, which are commonly used components in the field of disposable sanitary products. They are well-known technologies and will not be described in detail here; the above-mentioned first composite device and the second composite device are both ordinary rolling mechanisms, consisting of a pressure roller and a bottom roller, which are commonly used components in the field of disposable sanitary products. They are well-known technologies and will not be described in detail here; the above-mentioned first glue dispensing machine and the second glue dispensing machine are both commonly used components in the field of disposable sanitary products. They are well-known technologies and will not be described in detail here; the above-mentioned guide rollers, transition conveyor belts, edge sealing devices, annular cutter devices, waste suction devices, folding conveying devices, material dividing devices, and conveying devices are all commonly used components in the field of disposable sanitary products. They are well-known technologies and will not be described in detail here.

[0035] The above-mentioned clamping claws are all existing conventional technologies and will not be described in detail here. The above-mentioned camera is a high-speed camera, which is a well-known technology and will not be described in detail here.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A mask production device, comprising a frame, a plurality of guide rollers, It is characterized in that The invention also includes a plurality of transition conveyor belts and two or more filter material unwinding devices arranged on the frame according to the assembly line, an inner non-woven fabric unwinding device, a bulky non-woven fabric unwinding device, a first compounding device for rolling and compounding the unwinding material of the bulky non-woven fabric unwinding device to form a long strip of mask raw material, a nose bridge strip unwinding device, a nose bridge strip cutting device for cutting the continuous strip of nose bridge strip unwinding from the nose bridge strip unwinding device into a single nose bridge strip, an outer non-woven fabric unwinding device, a second compounding device for compounding the material unwinding from the outer non-woven fabric unwinding device with the mask raw material, an edge sealing device, a circular cutting knife device, a waste suction device, a folding device, a nozzle assembly ... A conveying device, a material dividing device, more than two conveying devices, and a waste rejection device arranged on more than two conveying devices, the waste rejection device comprising a fixed frame, a swing arm hinged on the top of the fixed frame, a first motor for driving the swing arm to rotate is provided on the fixed frame, the swing arm is fixedly provided with a cylinder, a second motor is fixedly provided at the bottom end of the cylinder, a third motor is rotatably connected to the bottom end of the second motor, a driving motor is fixedly provided at the bottom end of the third motor, a clamping claw is rotatably connected to the bottom end of the driving motor, the top of the swing arm is detachably connected to a fixed seat, the top of the fixed seat is rotatably connected to an adjusting frame, and a camera is hinged at the top end of the adjusting frame.

2. A mask production device according to claim 1, Features: The clamping claw is angular, and an anti-slip groove is arranged on the clamping surface of the clamping claw.

3. A mask production device according to claim 1, Features: The frame is also provided with a third composite device, a sponge unwinding device located at the input end of the third composite device, and a first glue dispenser located between the third composite device and the sponge unwinding device. The third composite device is located between the sponge unwinding device and the nose bridge strip cutting device.

4. A mask production device according to claim 3, Features: The frame is also provided with a second glue dispenser located at the input end of the second composite device.

5. A mask production device according to claim 1 or 3, Features: The nose bridge strip cutting device includes a nose bridge strip cutting device body, a channel arranged at the bottom end of the nose bridge strip cutting device body, a cutter arranged in the nose bridge strip cutting device body and sliding up and down, a protrusion arranged at the top of the cutter, a spring arranged between the bottom end of the protrusion and the nose bridge strip cutting device body, a rotating arm arranged at the upper end of the cutter, a servo motor for driving the rotating arm to rotate, an empty groove arranged horizontally in the nose bridge strip cutting device body, and a grinding block arranged in the empty groove, wherein the right end of the grinding block is elastically connected to the nose bridge strip cutting device body, and the beveled surface at the bottom end of the cutter fits with the grinding block.

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