Pneumatic clamping device for mask forming and welding and mask machine

Abstract

The present invention belongs to the technical field of mask production equipment, and particularly relates to a pneumatic clamping device for mask forming and welding and a mask machine. The pneumatic clamping device for mask forming and welding includes a frame and a folding mechanism and a welding mechanism arranged on the frame; two mounting vertical plates are arranged on the welding mechanism, the folding mechanism is used for folding the mask, and the welding mechanism is used for welding the folded mask; characterized in that: it further includes an adsorption mechanism, a pushing mechanism, a clamping mechanism and a conveying mechanism; the pushing mechanism is connected to the two mounting vertical plates or a support member arranged on the frame, and the clamping mechanism is arranged on the moving end of the pushing mechanism; the conveying mechanism is arranged between the two mounting vertical plates; the adsorption port of the adsorption mechanism adsorbs the headband of the mask upward. Through the above settings, during the process of mask forming and welding, the headband of the pneumatic clamping device for mask forming and welding is adjusted in position through the cooperation of the adsorption mechanism, the pushing mechanism and the clamping mechanism, so as to avoid the problems of welding mistakes and low yield rate when the mask fabric is formed and welded.

Description

Technical Field

[0001] The invention belongs to the technical field of mask production equipment, and particularly relates to a pneumatic clamping device for mask forming and welding and a mask machine. Background Art

[0002] As a sanitary protection article, a mask is a tool for users to simply filter the air entering the mouth and nose by wearing the mask, so as to achieve the effect of blocking harmful gases, odors or dust droplets. The mask has a certain filtering effect on the air entering the lungs. The user tightly wears the mask on the face by tightly sleeving the wearing elastic ropes provided on the mask around the two ears or the head, so that the mask achieves a better filtering effect. In the prior art, before mask forming and welding, the elastic ropes are welded on the mask to obtain a mask with headbands or ear loops, and then the headbands or ear loops are blown towards the direction inside the mask contour to prevent errors in the next process. However, when using the method in the prior art to change the position of the elastic ropes of the mask, there are problems such as messy placement of the headbands or ear loops during the conveying process, resulting in welding mistakes in the machine and low product yield. Summary of the Invention

[0003] An object of the invention is to provide a pneumatic clamping device for mask forming and welding, aiming at solving the technical problems of welding mistakes and low product yield during the conveying process of the mask headbands in the prior art.

[0004] To achieve the above object, a pneumatic clamping device for mask forming and welding provided by an embodiment of the invention includes a frame and a folding mechanism and a welding mechanism arranged on the frame; two mounting vertical plates are arranged on the welding mechanism, the folding mechanism is used for folding the mask, and the welding mechanism is used for welding the folded mask; it is characterized in that: it further includes an adsorption mechanism, a pushing mechanism, a clamping mechanism and a conveying mechanism; the adsorption mechanism is arranged between the two mounting vertical plates, and the adsorption port of the adsorption mechanism is located at the front end of the welding position of the welding mechanism; the pushing mechanism is connected to the two mounting vertical plates or arranged on a support member on the frame, and the clamping mechanism is arranged on the moving end of the pushing mechanism; the conveying mechanism is arranged between the two mounting vertical plates and above the welding position of the welding mechanism; the adsorption port of the adsorption mechanism adsorbs the headband of the mask upwards, and the clamping mechanism clamps the upper end of the headband and pushes it to the conveying mechanism for clamping and conveying.

[0005] Preferably, the adsorption mechanism includes two lifting components, a connecting plate, an adsorption pipe and a negative pressure mechanism; the two lifting components are oppositely arranged on the inner sides of the two mounting vertical plates, the two ends of the connecting plate are respectively connected to the lifting ends of the two lifting components, the adsorption pipe passes through the connecting plate and is connected to the negative pressure mechanism; the adsorption port is arranged at the bottom end of the adsorption pipe.

[0006] Preferably, the lower end opening of the adsorption tube is flat, and the flat setting of the opening of the adsorption tube is arranged along the mask conveying direction.

[0007] Preferably, an installation block is arranged at the bottom of the lifting assembly, and the installation block is fixedly installed on the inner side of the installation vertical plate.

[0008] Preferably, the clamping mechanism includes a finger cylinder and clamping plates of two clamping headbands arranged on the finger cylinder.

[0009] Preferably, the conveying mechanism includes a bracket, a mounting plate and two belt conveying mechanisms; the bracket is arranged on the frame, the mounting plate is arranged at the upper end of the bracket; the two belt conveying mechanisms are arranged at the bottom of the mounting plate, and the conveying surfaces of the two belt conveying mechanisms are arranged opposite to each other for clamping and conveying the headband.

[0010] Preferably, the belt conveying mechanism includes a plurality of driving wheels and a transmission belt, and each driving wheel is distributed between the two ends of the mounting plate, and the transmission belt is wound around each driving wheel.

[0011] Preferably, an adjusting mechanism is further arranged on the frame, the welding mechanism is arranged on the adjusting mechanism, and the adjusting mechanism adjusts the front and rear positions of the welding mechanism.

[0012] One or more of the above technical solutions in the pneumatic clamping of the mask forming and welding device provided by the embodiment of the present invention at least have one of the following technical effects:

[0013] The pneumatic clamping of the mask forming and welding device in the present invention includes a frame, a folding mechanism, a welding mechanism, an adsorption mechanism, a pushing mechanism, a clamping mechanism and a conveying mechanism. During assembly, both the welding mechanism and the folding mechanism are installed on the frame, and the welding mechanism and the folding mechanism are arranged adjacent to each other for folding the mask fabric folded by the folding mechanism, and then forming and welding through the welding mechanism. The adsorption mechanism is arranged between two installation vertical plates on the welding mechanism, and the adsorption port is located at the front end of the dissolving position of the welding mechanism for adjusting the headband first and then performing forming and welding. The pushing mechanism is connected to the two installation vertical plates or installed on the upper support member of the frame, and at the same time, the clamping mechanism is fixedly installed on the moving end of the pushing mechanism. The pushing mechanism pushes the clamping mechanism to move towards the adsorption mechanism to clamp and move the headband sucked by the adsorption mechanism and push it to the conveying mechanism for conveying. Through the above settings, during the mask forming and welding process of the pneumatic clamping of the mask forming and welding device, the headband is sorted through the cooperation of the adsorption mechanism, the pushing mechanism and the clamping mechanism to adjust the position, avoiding the problems of welding mistakes and low finished product rate when the mask fabric is subjected to forming and welding.

[0014] Another technical solution of the present invention is a mask machine, which includes the pneumatic clamping of the above-mentioned mask forming and welding device, and also includes a nose bridge strip device, a headband welding device, a cutting and separating device, and a discharging device. The output end of the nose bridge strip device is adjacently arranged to the input end of the headband welding device. The output end of the headband welding device is adjacently arranged to the input end of the pneumatic clamping of the mask forming and welding device. The output end of the pneumatic clamping of the mask forming and welding device is adjacently arranged to the input end of the cutting and separating device. The output end of the cutting and separating device is adjacently arranged to the input end of the discharging device.

[0015] Preferably, one end of the conveying mechanism extends above the cutting and separating device.

[0016] One or more of the above technical solutions in the mask machine provided by the embodiments of the present invention have at least one of the following technical effects:

[0017] The mask machine in the present invention includes a nose bridge strip device, a headband welding device, a cutting and separating device, and a discharging device. When installed and used, by sequentially connecting the output ends and input ends of the nose bridge strip device, the headband welding device, the pneumatic clamping of the mask forming and welding device, the cutting and separating device, and the discharging device in an orderly manner, the mask fabric is assembled with the nose bridge strip and the contour is shaped and welded when passing through the nose bridge strip device, and then enters the headband welding device for the welding and installation of the headband. The mask fabric with the headband installed enters the folding mechanism for symmetric folding and then is input into the pneumatic clamping of the mask forming and welding device for forming and welding to obtain an uncut formed mask. Finally, the formed mask and the blank fabric are separated by the cutting and separating device, and the mask finished product and the waste are separately output by the discharging device, and finally the mask finished product and the waste are obtained. Through the above settings, the problem of welding errors and low yield rate will not occur when the mask is formed and welded during the production process. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is the effect diagram of the mask machine provided by the embodiments of the present invention.

[0020] Figure 2 It is the side view of the pneumatic clamping of the mask forming and welding device provided by the embodiments of the present invention.

[0021] Figure 3The effect diagram of pneumatic clamping of the mask forming and welding device provided by the embodiment of the present invention.

[0022] Figure 4 The side view of the headband adjusting mechanism of pneumatic clamping of the mask forming and welding device provided by the embodiment of the present invention.

[0023] Figure 5 The position diagram of the adsorption mechanism, pushing mechanism, clamping mechanism and conveying mechanism of pneumatic clamping of the mask forming and welding device provided by the embodiment of the present invention.

[0024] Figure 6 The flowchart of earband flipping of pneumatic clamping of the mask forming and welding device provided by the embodiment of the present invention.

[0025] Among them, each reference numeral in the figure:

[0026] 10 - Pneumatic clamping of the mask forming and welding device 11 - Frame 12 - Folding mechanism

[0027] 13 - Welding mechanism 14 - Adsorption mechanism 15 - Pushing mechanism

[0028] 16 - Clamping mechanism 17 - Conveying mechanism 20 - Nose bridge strip device

[0029] 30 - Headband welding device 40 - Cutting and separating device 50 - Discharging device

[0030] 131 - Installation vertical plate 134 - Position adjusting component 141 - Lifting component

[0031] 142 - Connecting plate 143 - Adsorption pipe 161 - Finger cylinder

[0032] 162 - Clamping plate 171 - Bracket 172 - Installation plate

[0033] 173 - Belt conveying mechanism. Detailed implementation manners

[0034] The following details the embodiments of the present invention. The examples of the embodiments are shown in the appendix Figures 1 - 6 in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the present invention and should not be construed as limiting the present invention.

[0035] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

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

[0037] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0038] In one embodiment of the present invention, such as Figures 2 - 3 and Figures 5 - 6As shown, a pneumatic clamping device 10 for mask forming and welding is provided, including a frame 11, a folding mechanism 12 and a welding mechanism 13 arranged on the frame 11; two mounting vertical plates 131 are arranged on the welding mechanism 13. The folding mechanism 12 is used for folding the mask, and the welding mechanism 13 is used for welding the folded mask. It also includes an adsorption mechanism 14, a pushing mechanism 15, a clamping mechanism 16 and a conveying mechanism 17. The adsorption mechanism 14 sucks the mask headband to change the position and direction of the headband. The pushing mechanism 15 pushes the clamping mechanism 16 to clamp and move the headband sucked by the adsorption mechanism 14. The conveying mechanism 17 is used to receive the headband sent by the clamping mechanism 16 and convey the headband. The adsorption mechanism 14 is arranged between the two mounting vertical plates 131, and the adsorption port of the adsorption mechanism 14 is located at the front end of the welding position of the welding mechanism 13. The pushing mechanism 15 is connected to the two mounting vertical plates 131 or arranged on the support member on the frame 11. The pushing mechanism 15 is fixedly installed on the two mounting vertical plates 131 or the support member on the frame 11 (not shown in the figure), so that the pushing mechanism can carry the clamping mechanism 16 to be arranged adjacent to the adsorption mechanism 14, and at the same time on the feeding side of the mask conveying direction of the welding mechanism 13, so as to adjust the position of the headband of the mask fabric first and perform clamping and conveying separately, avoiding the influence of the position placement of the headband on the subsequent mask forming and welding process. The clamping mechanism 16 is arranged at the mobile end of the pushing mechanism 15. The conveying mechanism 17 is arranged between the two mounting vertical plates 131 and above the welding position of the welding mechanism 13. The conveying mechanism 17 independently clamps and conveys the headband before the forming and welding, so that the headband will not affect the entire welding process when the mask fabric is formed and welded. The adsorption port of the adsorption mechanism 14 adsorbs the headband of the mask upward, and the clamping mechanism 16 clamps the upper end of the headband and pushes it to the conveying mechanism 17 for clamping and conveying. After the adsorption mechanism 14 sucks up the headband, it moves upward to leave space for the clamping mechanism 16.

[0039] As Figures 1 - 3 shown, the folding mechanism 12 and the welding mechanism 13 are arranged adjacent to each other, and traction members are arranged on both sides of the welding mechanism 13. One traction member is used to traction the folded mask by the folding mechanism 12 into the welding mechanism 13 for forming and welding, and the other traction member is used to traction the welded mask out.

[0040] As Figures 1 - 3 shown, the welding mechanism 13 further includes a mold and a bottom mold. The mold and the bottom mold are respectively arranged opposite to each other on the two mounting vertical plates 131. The mask passes through between the mold and the bottom mold. After moving a set distance, the mold and the bottom mold on both sides shape and weld the mask.

[0041] The pneumatic clamping device 10 for mask forming and welding in the present invention includes a frame 11, a folding mechanism 12, a welding mechanism 13, an adsorption mechanism 14, a pushing mechanism 15, a clamping mechanism 16 and a conveying mechanism 17. During assembly, both the welding mechanism 13 and the folding mechanism 12 are installed on the frame 11, and the welding mechanism 13 and the folding mechanism 12 are arranged adjacent to each other, used to fold the mask fabric folded by the folding mechanism 12, and then perform forming and welding through the welding mechanism 13. The adsorption mechanism 14 is arranged between two mounting vertical plates 131 on the welding mechanism 13, and the adsorption port is located at the front end of the dissolving position of the welding mechanism 13, used to adjust the headband first and then perform forming and welding. The pushing mechanism 15 is connected to the two mounting vertical plates 131 or installed on the upper support member of the frame 11. At the same time, the clamping mechanism 16 is fixedly installed on the moving end of the pushing mechanism 15. The pushing mechanism 15 pushes the clamping mechanism 16 to move towards the adsorption mechanism 14, clamps and moves the headband sucked by the adsorption mechanism 14, and pushes it to the conveying mechanism 17 for conveying. Through the above settings, during the process of mask forming and welding by the pneumatic clamping device 10 for mask forming and welding, the headband is sorted through the cooperation of the adsorption mechanism 14, the pushing mechanism 15 and the clamping mechanism 16 to adjust the position, avoiding the problems of welding errors and low product yield when the mask fabric is subjected to forming and welding.

[0042] In another embodiment of the present invention, as Figures 2 - 3 and Figure 5 shown, the adsorption mechanism 14 includes two lifting components 141, a connecting plate 142, an adsorption tube 143 and a negative pressure mechanism (not shown in the figure); the negative pressure mechanism is used to generate suction. The lifting component 141 is connected to the connecting plate 142 to push the connecting plate 142 to move. The adsorption tube 143 is installed on the connecting plate 142 and passes through the connecting plate 142 to realize movement by using the connecting plate 142. The adsorption tube 143 is connected to the negative pressure mechanism, and under the action of the negative pressure mechanism, the headband is adsorbed. The two lifting components 141 are relatively arranged inside the two mounting vertical plates 131. The two ends of the connecting plate 142 are respectively connected to the lifting ends of the two lifting components 141. The adsorption tube 143 is disposed through the connecting plate 142 and is connected to the negative pressure mechanism; the adsorption port is arranged at the bottom end of the adsorption tube 143, and the adsorption port is arranged at the bottom end of the adsorption tube 143 and above the mask conveying direction to suck up the headband and change the placement position of the headband.

[0043] In another embodiment of the present invention, as Figure 5As shown, the lower end opening of the adsorption tube 143 is flat, and the flat setting of the opening of the adsorption tube 143 is arranged along the mask conveying direction. While occupying a smaller opening space of the adsorption tube 143, the flat opening can make the suction force greater due to the smaller opening. The flat shape arranged along the mask conveying direction is more convenient for sucking up the headband and avoiding too short a suction surface, resulting in suction errors.

[0044] In another embodiment of the present invention, as Figure 5 shown, an installation block is provided at the bottom of the lifting assembly 141, and the installation block is fixedly installed on the inner side of the installation vertical plate 131. By providing installation blocks at the bottoms of the two lifting cylinders, it is more convenient to install the lifting cylinders, preventing direct installation without a supporting component, and avoiding the position deviation of the lifting cylinders after a period of use.

[0045] In another embodiment of the present invention, as Figures 4 - 5 shown, the clamping mechanism 16 includes a finger cylinder 161 and clamping plates 162 for clamping the headband arranged on the finger cylinder 161. One end of the clamping plate 162 extends to the side position of the adsorption tube 143. After the adsorption tube 143 sucks up the headband and moves upward, the clamping plate 162 moves under the push of the pushing mechanism 15. The finger cylinder 161 opens the two clamping plates 162 to clamp the headband, and continues to push to move the headband into the conveying mechanism 17 for conveying.

[0046] In another embodiment of the present invention, as Figures 2 - 3 and Figure 5 shown, the conveying mechanism 17 includes a bracket 171, a mounting plate 172, and two belt conveying mechanisms 173; the bracket 171 mounts the mounting plate 172 and the belt conveying mechanisms 173 above the mask conveying path to convey the headband synchronously. The bracket 171 is arranged on the frame 11, and the bracket 171 is fixedly installed on the upper surface of the frame 11 and is arranged on the mask conveying path, enabling the mask to pass through the bracket 171. The mounting plate 172 is arranged at the upper end of the bracket 171; the two belt conveying mechanisms 173 are arranged at the bottom of the mounting plate 172, and the conveying surfaces of the two belt conveying mechanisms 173 are arranged opposite to each other for clamping and conveying the headband. After the belt conveying mechanisms 173 are assembled at the bottom of the mounting plate 172, they are fixedly installed on the bracket 171, and the two opposite belt conveying mechanisms 173 assembled at the bottom of the mounting plate 172 are used to clamp and convey the headband.

[0047] In another embodiment of the present invention, as Figures 2 - 3 and Figure 5As shown, the belt conveyor mechanism 173 includes a number of driving wheels and a conveyor belt. Each of the driving wheels is distributed between the two ends of the mounting plate 172, and the conveyor belt is wound around each of the driving wheels. The driving wheels drive the conveyor belt to move. Two opposite conveyor belts abut against the conveying head belt. At the same time, tensioning members are fixedly installed on both sides of the mounting plate 172, and the conveyor belt is wound around the tensioning members to adjust the tension of the conveyor belt by means of the tensioning members.

[0048] In another embodiment of the present invention, as Figures 2 - 3 shown, a position adjusting assembly 134 for adjusting the front-back movement of the welding mechanism 13 is provided at the bottom of the welding mechanism 13. The position adjusting assembly 134 is fixedly installed on the frame 11, and the welding mechanism 13 is fixedly installed on the moving end of the position adjusting assembly 134. The welding mechanism 13 is fixedly installed on the position adjusting assembly 134, and the front-back position of the welding mechanism 13 is adjusted by the position adjusting assembly 134 so as to be adapted to masks of different models.

[0049] Another technical solution of the present invention is a mask machine, as Figure 1 shown, which includes the above-mentioned pneumatic clamping device for mask forming and welding 10, and further includes a nose strip device 20, a headband welding device 30, a cutting and separating device 40 and a discharging device 50. The output end of the nose strip device 20 is arranged adjacent to the input end of the headband welding device 30. The output end of the headband welding device 30 is arranged adjacent to the input end of the pneumatic clamping device for mask forming and welding 10. The output end of the pneumatic clamping device for mask forming and welding 10 is arranged adjacent to the input end of the cutting and separating device 40. The output end of the cutting and separating device 40 is arranged adjacent to the input end of the discharging device 50. The mask fabric enters the mask machine through the nose strip device 20. The nose strip is assembled in the nose strip device 20, and the nose strip is placed between multiple layers of fabric, and then contour welding is performed to fix the position of the nose strip and at the same time shape the overall contour of the mask. Then it is output to the headband welding device 30 for headband assembly. The mask fabric with the headband assembled continues to be conveyed into the pneumatic clamping device for mask forming and welding 10 for folding, adjusting the position of the headband and forming and welding. Finally, it is conveyed to the cutting and separating device 40 for separating and cutting the waste. After cutting and separating, the waste and the mask are separately output in the discharging device 50 to obtain a single mask or waste.

[0050] The mask machine in the present invention includes a nose strip device 20, a headband welding device 30, a cutting and separating device 40, and a discharging device 50. When installed and used, the output ends and input ends of the nose strip device 20, the headband welding device 30, the pneumatic clamping device 10 for mask forming and welding, the cutting and separating device 40, and the discharging device 50 are sequentially and orderly connected and installed. When the mask fabric passes through the nose strip device 20, the nose strip is assembled and the contour is shaped and welded. Then, it enters the headband welding device 30 for headband welding and installation. The mask fabric with the headband installed enters the folding mechanism for symmetric folding and then is input into the pneumatic clamping device 10 for mask forming and welding to obtain an uncut formed mask. Finally, the formed mask and the blank fabric are separated by the cutting and separating device 40, and the mask finished products and waste materials are separately output through the discharging device 50. Finally, mask finished products and waste materials are obtained. Through the above settings, during the mask forming and welding process in the production of masks, there will be no problems such as welding errors and low yield rate.

[0051] In another embodiment of the present invention, as Figures 1 - 3 shown, one end of the conveying mechanism 17 extends above the cutting and separating device 40. One end of the conveying mechanism 17 extends above the cutting and separating device 40 to ensure that the position of the headband is always on the conveying mechanism 17 before the mask enters the cutting and separating device 40, avoiding accidentally cutting the headband during cutting and separation and resulting in defective products.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pneumatic clamping device for a mask forming and welding apparatus, comprising a frame and a folding mechanism and a welding mechanism arranged on the frame; two mounting vertical plates are arranged on the welding mechanism, the folding mechanism is used for folding the mask in half, and the welding mechanism is used for welding the folded mask; characterized in that: It further includes an adsorption mechanism, a pushing mechanism, a clamping mechanism and a conveying mechanism; the adsorption mechanism is arranged between the two mounting vertical plates, and the adsorption port of the adsorption mechanism is located at the front end of the welding position of the welding mechanism; the pushing mechanism is connected to the two mounting vertical plates or is arranged on the support member on the frame, and the clamping mechanism is arranged on the moving end of the pushing mechanism; the conveying mechanism is arranged between the two mounting vertical plates and above the welding position of the welding mechanism; the adsorption port of the adsorption mechanism adsorbs the headband of the mask upward, and the clamping mechanism clamps the upper end of the headband and pushes it to the conveying mechanism for clamping and conveying. The adsorption mechanism includes two lifting components, a connecting plate, an adsorption pipe and a negative pressure mechanism; the two lifting components are oppositely arranged on the inner sides of the two mounting vertical plates, the two ends of the connecting plate are respectively connected to the lifting ends of the two lifting components, the adsorption pipe passes through the connecting plate and is connected to the negative pressure mechanism; the adsorption port is arranged at the bottom end of the adsorption pipe. The lower end opening of the adsorption pipe is flat, and the flat setting of the opening of the adsorption pipe is arranged along the mask conveying direction. The clamping mechanism includes a finger cylinder and two clamping plates for clamping the headband arranged on the finger cylinder.

2. The pneumatic clamping of the mask forming and welding device according to claim 1, characterized in that: An installation block is arranged at the bottom of the lifting component, and the installation block is fixedly installed on the inner side surface of the mounting vertical plate.

3. The pneumatic clamping of the mask forming and welding device according to claim 1, characterized in that: The conveying mechanism includes a bracket, a mounting plate and two belt conveying mechanisms; the bracket is arranged on the frame, and the mounting plate is arranged at the upper end of the bracket; the two belt conveying mechanisms are arranged at the bottom of the mounting plate, and the conveying surfaces of the two belt conveying mechanisms are oppositely arranged for clamping and conveying the headband.

4. The pneumatic clamping of the mask forming and welding device according to claim 3, characterized in that: The belt conveying mechanism includes a plurality of driving wheels and a transmission belt, and each driving wheel is scattered between the two ends of the mounting plate, and the transmission belt is wound around each driving wheel.

5. The pneumatic clamping of the mask forming and welding device according to claim 1, characterized in that: An adjusting mechanism is further arranged on the frame, the welding mechanism is arranged on the adjusting mechanism, and the adjusting mechanism adjusts the front and rear positions of the welding mechanism.

6. A mask machine, including the pneumatic clamping of the mask forming and welding device described in any one of claims 1 to 3 above, characterized in that: It further includes a nose strip device, a headband welding device, a cutting and separating device and a discharging device. The output end of the nose strip device is adjacently arranged to the input end of the headband welding device. The output end of the headband welding device is adjacently arranged to the input end of the pneumatic clamping of the mask forming welding device. The output end of the pneumatic clamping of the mask forming welding device is adjacently arranged to the input end of the cutting and separating device. The output end of the cutting and separating device is adjacently arranged to the input end of the discharging device.

7. The mask machine according to claim 6, characterized in that: One end of the conveying mechanism extends above the cutting and separating device.

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