Mask ear band welding device and mask manufacturing equipment

Abstract

The application discloses a mask ear band welding device and a mask manufacturing equipment. The mask ear band welding device comprises a feeding module, the feeding module comprises at least one limiting groove and at least one airflow channel communicated with the limiting groove, the airflow channel is arranged to be connected to an airflow, so that the airflow can drive the ear band to be conveyed along the limiting groove; a feeding assembly is used for selectively locking the ear band to limit the ear band conveying; and a welding assembly is arranged at an ear band inlet and an ear band outlet of the feeding module. The airflow is introduced into the limiting groove through the airflow channel, the ear band is moved and conveyed in the limiting groove by the airflow, meanwhile, the ear band is controlled through the feeding assembly to limit the ear band from freely moving in the limiting groove, so that the ear band is moved and conveyed to a predetermined position, the welding assembly is operated to weld the mask and the ear band at the same time, the welding process of the mask and the welding process of the ear band are combined into one, and the production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mask production and manufacturing, in particular to a mask ear band welding device and a mask manufacturing equipment. BACKGROUND

[0002] At present, the mask machine in the prior art is usually arranged in a "one-to-two" structure, that is, the mask body is formed by an upstream mask body manufacturing device, and then two mask ear band welding devices are arranged downstream for welding the ear bands on both sides of the mask. This kind of "one-to-two" mask machine has a complex structure, a high failure rate, and the low efficiency of the mask ear band welding device seriously limits the improvement of the mask production efficiency.

[0003] In the mask ear band welding device in the prior art, the ear bands on both sides of the mask need to be cooperated by a plurality of mechanisms such as ear band conveying, winding, cutting and welding to convey and position the ear bands or ear ropes and cut the ear bands or ear ropes into a predetermined appropriate length, and then the ear bands are welded and fixed on the left and right sides of the mask body by ultrasonic welding process. The traditional ear band welding device has a complex structure, and each mechanism needs to be cooperated to complete the ear band welding and fixation by different process operations, so the device has a high failure rate and is complicated to maintain and repair. In addition, the traditional ear band welding device usually adopts a rolling welding method to first perform mask edge welding and then perform mask ear band welding, that is, the mask short side welding and the mask ear band welding are separated into two different processes, so the overall structure is complex. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art, and provide a mask ear band welding device with compact structure, convenient maintenance and high working efficiency.

[0005] The present application also provides a mask manufacturing equipment, which comprises the above-mentioned mask ear band welding device.

[0006] The present application provides a mask ear band welding device, which comprises a feeding module, the feeding module comprising at least one limiting groove and at least one airflow channel communicating with the limiting groove, the limiting groove having an ear band inlet and an ear band outlet, wherein the airflow channel is arranged to introduce airflow so that the airflow can drive the ear band to be conveyed along the limiting groove; a feeding assembly for selectively locking the ear band to limit the ear band conveying; and a welding assembly arranged at the ear band inlet and the ear band outlet of the feeding module, the welding assembly comprising a first welding die and a second welding die cooperating with each other.

[0007] The mask ear band welding device has at least the following beneficial effects: the airflow is introduced into the limiting groove through the airflow channel, the ear band is moved and conveyed in the limiting groove by the airflow, meanwhile, the ear band is controlled by the feeding assembly to limit the free movement of the ear band in the limiting groove, the ear band is ensured to be moved and conveyed to a predetermined position, the welding assembly acts to weld the mask and the ear band at the same time, the welding process of the mask and the welding process of the ear band are combined into one, and the production efficiency is effectively improved.

[0008] According to the mask ear band welding device, the cutting assembly for cutting the mask body and the ear band is arranged on the first welding die and / or the second welding die.

[0009] According to the mask ear band welding device, the first welding die end is provided with a convex edge, and the second welding die end is provided with a notch matched with the convex edge.

[0010] According to the mask ear band welding device, the first welding die end is provided with an opening, a cutter extending through the opening is arranged in the first welding die, and the second welding die end is provided with a notch matched with the cutter.

[0011] According to the mask ear band welding device, the feeding module group includes a first feeding module and a second feeding module which are arranged at intervals and have a predetermined gap, the first feeding module includes a first limiting groove with a first ear band inlet and a first ear band outlet, the second feeding module includes a second limiting groove with a second ear band inlet and a second ear band outlet, the first ear band inlet is opposite to the second ear band outlet, the first ear band outlet is opposite to the second ear band inlet, and the welding assembly is arranged at the predetermined gap.

[0012] According to the mask ear band welding device, an inlet channel corresponding to the first limiting groove and / or the second limiting groove is arranged on the first feeding module and / or the second feeding module.

[0013] According to the mask ear band welding device, the airflow channel is arranged adjacent to the inlet channel, the airflow channel intersects with the inlet channel and forms an acute angle at the intersection.

[0014] According to the mask ear band welding device, the path of the limiting groove is semicircular.

[0015] According to the mask ear band welding device, the limiting groove is a groove structure with an open bottom surface or an open side surface.

[0016] The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0017] The mask ear band welding device further comprises a stripping gas hole in communication with the limiting groove in the feeding module, and the stripping gas hole is arranged to selectively pass air flow to strip the ear band from the limiting groove.

[0018] The mask ear band welding device further comprises at least one stripping module selectively covering the side opening of the limiting groove.

[0019] The mask ear band welding device further comprises two rollers in contact with each other, and the two rollers press the ear band to selectively lock the ear band.

[0020] The mask ear band welding device further comprises two rollers in contact with each other, and the two rollers press the ear band to selectively lock the ear band. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0023] Figure 2 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0024] Figure 3 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0025] Figure 4 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0026] Figure 5 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0027] Figure 6 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0028] Figure 7 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0029] Figure 8 The mask ear band welding device further comprises a stripping assembly for stripping the ear band from the limiting groove.

[0030] Figure 9 Figure 1 is a partial structure cross-sectional schematic view of a first embodiment of a welding assembly in a mask ear band welding device according to the present application;

[0031] Figure 10 Figure 2 is a partial structure cross-sectional schematic view of a second embodiment of a welding assembly in a mask ear band welding device according to the present application;

[0032] Figure 11 Figure 3 is a partial structure cross-sectional schematic view of a first embodiment of an ear band disengaging limiting groove in a mask ear band welding device according to the present application;

[0033] Figure 12 Figure 4 is a partial structure cross-sectional schematic view of a second embodiment of an ear band disengaging limiting groove in a mask ear band welding device according to the present application;

[0034] Figure 13 Figure 5 is a partial structure cross-sectional schematic view of a third embodiment of an ear band disengaging limiting groove in a mask ear band welding device according to the present application;

[0035] Figure 14 Figure 6 is a cross-sectional schematic view of the A-A line in Figure 5; Figure 13

[0036] Figure 7 is a cross-sectional schematic view of the A-A line ear band disengaging limiting groove process in Figure 5; Figure 15 Figure 13 Figure 8 is a structure schematic view of a mask manufacturing equipment embodiment according to the present application.

[0037] DETAILED DESCRIPTION Figure 16 This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0038] Reference

[0039] Figures 1 to 4 ​​The embodiment of the present application provides a mask ear band welding device, which comprises a feeding module 100 for conveying ear bands 10 to a predetermined position, a feeding assembly 200 and a welding assembly 300 for welding and fixing the ear bands 10 on the mask. The feeding module 100 comprises a first feeding module 110 and a second feeding module 120 which are arranged at intervals and have a predetermined gap, and the mask body 20 is continuously conveyed along a predetermined direction, and the conveying direction of the mask body 20 is from the first feeding module 110 to the second feeding module 120. The welding assembly 300 is arranged between the first feeding module 110 and the second feeding module 120, and when the ear bands 10 are conveyed to the predetermined position, the welding assembly 300 acts to weld the ear bands 10 on the mask body 20.

[0040] In the description of the embodiment, the upward and downward directions are as shown by the annotations, in order to facilitate intuitive understanding of the structure of the feeding module 100, the bottom surfaces of the first feeding module 110 and the second feeding module 120 are upward, and in the actual mask production process, the bottom surfaces of the first feeding module 110 and the second feeding module 120 are downward, and the mask body 20 moves and is conveyed approximately along the bottom surfaces of the first feeding module 110 and the second feeding module 120. Figure 2

[0041] The first limiting groove 111 is arranged on the bottom surface of the first feeding module 110, and the second limiting groove 121 is arranged on the bottom surface of the second feeding module 120, and the first limiting groove 111 and the second limiting groove 121 are both groove or embedded groove structures, that is, the bottom surfaces of the first feeding module 110 and the second feeding module 120 are grooved to form an open bottom surface, Figure 2 In the schematic view, the direction of the open bottom surface is upward, the paths of the first limiting groove 111 and the second limiting groove 121 in the horizontal direction or the same plane are both semicircular, and the two are approximately symmetrically distributed, the path formed by the combination of the first limiting groove 111 and the second limiting groove 121 is circular or racetrack-shaped in the horizontal direction or the same plane, the two ends of the first limiting groove 111 respectively constitute a first ear band inlet 1111 and a first ear band outlet 1112, and the two ends of the second limiting groove 121 respectively constitute a second ear band inlet 1211 and a second ear band outlet 1212, so that the ear bands 10 can smoothly pass through the first limiting groove 111 and the second limiting groove 121.

[0042] ​The first ear band inlet 1111 is opposite to the second ear band outlet 1212, the first ear band outlet 1112 is opposite to the second ear band inlet 1211, the ear band 10 enters from the first ear band inlet 1111 of the first limiting groove 111, is sent out through the first ear band outlet 1112 of the first limiting groove 111, then enters from the second ear band inlet 1211 of the second limiting groove 121, and is sent out through the second ear band outlet 1212 of the second limiting groove 121, that is, the ear band 10 can continuously circulate and move in the first limiting groove 111 and the second limiting groove 121 in the counterclockwise direction. In order to facilitate the ear band 10 to smoothly enter the second limiting groove 121 through the second ear band inlet 1211 and enter the first limiting groove 111 through the first ear band inlet 1111, the first ear band inlet 1111 and the second ear band inlet 1211 are both provided with a chamfer structure.

[0043] In the embodiment of the application, the airflow passage 130 in communication with the second limiting groove 121 is arranged inside the second feeding module 120, the airflow passage 130 is arranged to be in communication with airflow, the airflow flows in the counterclockwise direction through the airflow passage 130 into the first limiting groove 111 and the second limiting groove 121, under the action of the airflow, the ear band 10 is driven to move and be conveyed in the counterclockwise direction in the first limiting groove 111 and the second limiting groove 121.

[0044] It can be understood that the strength of the airflow can be flexibly selected according to actual conditions, as long as the ear band 10 can be driven or blown to move and be conveyed.

[0045] In the embodiment of the application, the material inlet passage 140 in communication with the second limiting groove 121 is arranged inside the second feeding module 120, the material inlet passage 140 is used for feeding the ear band 10 into the feeding module 100, the airflow passage 130 intersects with the material inlet passage 140, the airflow enters through the airflow passage 130 and drives the ear band 10 in the material inlet passage 140 to move into the first limiting groove 111 and the second limiting groove 121, wherein, at the intersection of the airflow passage 130 and the material inlet passage 140, an acute angle is formed between the central axes of the two, that is, at the intersection, the flow direction of the airflow in the airflow passage 130 and the conveying direction of the ear band 10 in the material inlet passage 140 form an acute angle, which is beneficial to the airflow driving the ear band 10 to move and be conveyed.

[0046] In the embodiment of the present application, the position of the moving conveying of the ear band 10 is controlled by the feeding assembly 200. Specifically, the feeding assembly 200 includes two top-contacting rollers 210, the ear band 10 passes between the two rollers 210, the two rollers 210 clamp the ear band 10, at this time, the ear band 10 is locked and cannot be moved and conveyed, when the two rollers 210 are synchronously and reversely rotated, the ear band can be moved and conveyed under the action of the airflow by rolling and pressing the ear band, when the two rollers 210 stop rotating, the moving conveying of the ear band 10 is paused. In this way, under the double action of the rolling control of the ear band by the two rollers 210 and the airflow-driven control of the ear band, the end of the ear band 10 can just be exposed from the second ear band outlet 1212 of the second limiting groove 121, and then the ear band 10 is arranged in a ring shape or a racetrack shape in the first limiting groove 111 and the second limiting groove 121, so as to facilitate subsequent welding and cutting processes.

[0047] Through the cooperation of the feeding module 100 and the feeding assembly 200, the ear band 10 is moved and conveyed in the first limiting groove 111 and the second limiting groove 121 and arranged in a ring shape or a racetrack shape, so that two mask ear bands can be welded at one time in the subsequent process, and the production efficiency is effectively improved.

[0048] The airflow is continuously blown into the airflow channel 130, and the ear band 10 can be moved and conveyed by the airflow, and the ear band will be moved and conveyed with the airflow only when the two rollers 210 are synchronously and reversely rotated. The conveying position of the ear band 10 can be accurately controlled by controlling the frequency and time of the rotating action of the two rollers 210, that is, the ear band can be selectively locked by controlling the rotating action of the two rollers 210.

[0049] It can be understood that the two rollers 210 can also be synchronously and reversely rotated to pre-convey the ear band 10 of a predetermined length, then the two rollers 210 stop rotating to lock the ear band 10, and then the airflow is introduced into the airflow channel 130 to move and convey the ear band 10 in the first limiting groove 111 and the second limiting groove 121 and arrange the ear band in a ring shape or a racetrack shape. That is, the airflow can also be set to be intermittently introduced.

[0050] Of course, in some other embodiments, the feeding assembly 200 can also be provided with only one roller, the roller is arranged to press against a plane, the ear band 10 passes between the roller and the plane, the roller presses the ear band 10, at this time, the ear band 10 is locked and cannot be moved and conveyed, when the roller rotates, the ear band can be moved and conveyed under the action of the airflow by rolling and pressing the ear band, when the roller stops rotating, the moving conveying of the ear band 10 is paused.

[0051] In some other embodiments, the feeding assembly 200 can also be provided as a clamping mechanism capable of clamping or releasing the ear band 10, i.e. capable of selectively locking the ear band, and in the same way, only when the clamping mechanism releases the ear band 10, the ear band will be moved and conveyed by the airflow.

[0052] Referring to Figure 5 In some embodiments, independent airflow channels 130 can be provided on the first feeding module 110 and the second feeding module 120 respectively, and the airflow is introduced into the first limiting groove 111 and the second limiting groove 121 through the respective airflow channels 130, so as to drive the ear band 10 to move and convey.

[0053] It can be understood that the number of airflow channels 130 can also be set to multiple, and those skilled in the art can flexibly select according to the actual situation, as long as the airflow channel 130 is constructed to facilitate the movement and conveyance of the ear band 10 under the action of the airflow, for example, the airflow channel 130 is tangent to the first limiting groove 111 and / or the second limiting groove 121.

[0054] Referring to Figure 6 In some embodiments, independent feeding channels 140 can be provided on the first feeding module 110 and the second feeding module 120 respectively, and correspondingly, two feeding assemblies 200 are provided for providing two ear bands 10 respectively corresponding to the conveying into the first limiting groove 111 and the second limiting groove 121, and the rolling control and airflow driving control of each ear band 10 are the same as the foregoing manner, which will not be repeated here. Each ear band 10 is moved and conveyed to form a semi-ring in the first limiting groove 111 and the second limiting groove 121, and the two ear bands 10 are combined with each other to form a ring or a racetrack shape, thereby facilitating the subsequent one-time welding of two mask ear bands, effectively improving the production efficiency.

[0055] In some embodiments, the airflow channel 130 and the feeding channel 140 can be combined into one, i.e. only the airflow channel 130 is provided, and the ear band 10 enters from the airflow channel 130, and the airflow directly drives the ear band 10 located in the airflow channel 130 to enter the first limiting groove 111 and the second limiting groove 121.

[0056] Referring to Figure 7 and Figure 8, the airflow channel 130 can be combined with the feeding channel 140, that is, the ear band 10 enters the first limiting groove 111 and the second limiting groove 121 along the airflow channel 130, and the airflow is fed into the first limiting groove 111 and the second limiting groove 121 from the airflow channel 130. The airflow channel 130 can be connected with an external hose 131 as an air inlet pipe. An air inlet head 132 is arranged at the end of the hose 131. The air inlet head 132 has an annular groove 1321 in the inside thereof. The annular groove 1321 is open at one end close to the hose 131. The side wall of the air inlet head 132 is provided with a through hole as an air inlet hole 1322 which is communicated with the annular groove 1321. The ear band 10 enters the airflow channel 130 through the hose 131 and the airflow is fed into the airflow channel 130 from the air inlet hole 1322. The airflow carries the ear band 10 into the hose, and then the ear band 10 directly enters the first limiting groove 111 and the second limiting groove 121 from the airflow channel 130.

[0057] Of course, it can be understood that the feeding module 100 can be provided with only a single limiting groove which cooperates with a single feeding assembly 200 to guide and convey the ear band 10 in the limiting groove in a semi-ring shape, so as to weld the ear band on one side of the mask body. In this way, only one mask ear band can be welded at a time.

[0058] In the embodiment of the application, the welding assembly 300 is arranged at a predetermined gap between the first feeding module 110 and the second feeding module 120. When the ear band 10 is conveyed to the predetermined position in a ring shape or a racetrack shape by the feeding module 100 and the feeding assembly 200, the welding assembly 300 is operated to weld the ear band in the ring shape or the racetrack shape on the mask body 20. At the same time of welding, the ear band 10 and the mask body 20 are cut to form independent masks.

[0059] Referring to Figure 9 The welding assembly 300 includes a first welding die head 310 and a second welding die head 320 which are arranged above and below and cooperate with each other. The welding operation is performed by driving the first welding die head 310 and the second welding die head 320 to close. It can be understood that the first welding die head 310 and the second welding die head 320 can be driven to close at the same time or only one of them can be driven to close, and both of them can realize the welding operation. The first welding die head 310 and the second welding die head 320 are used for welding the mask and the ear band by the ultrasonic welding process. The ultrasonic welding process is a conventional technology in the field and will not be described here.

[0060] In the embodiment of the present application, the cutting assembly is arranged on the first welding die 310 and the second welding die 320, that is, the cutting assembly is integrated on the welding assembly 300, and the cutting assembly is used for cutting the mask body and the ear band. Specifically, the opening 312 is arranged at the end of the first welding die 310, the cutter 313 for cutting is arranged in the first welding die 310, the cutter 313 extends from the opening 312, the notch 321 capable of allowing the cutter 313 to extend into is arranged at the end of the second welding die 320, and when the first welding die 310 and the second welding die 320 are closed to perform the welding operation, the protruding cutter 313 can cut the mask body and the ear band. Therefore, the welding assembly 300 can weld the ear band while cutting the mask body and the ear band. Since the ear band is arranged in a ring shape or a track shape and the cutting position is in the middle, the welding assembly 300 can weld and fix two mask ear bands on the mask body at one time, and the cutting process and the welding process of the mask ear band are combined into one, so that the mechanical structure is simplified to the maximum, the mechanical parts are reduced, the failure rate of the mechanical structure is lower, and the structure is simple and the cost is reduced.

[0061] With reference to Figure 10 In some embodiments, the cutting assembly can also have other structural forms, for example, the first welding die 310 is provided with the convex blade 311 protruding at the end, the second welding die 320 is provided with the notch 321 capable of allowing the convex blade 311 to extend into, and when the first welding die 310 and the second welding die 320 are closed to perform the welding operation, the protruding convex blade 311 can cut the mask body and the ear band, so that the welding assembly 300 can weld the ear band while cutting the mask body and the ear band.

[0062] The mask ear band welding device in the embodiment of the present application can also include the stripping assembly 500, and the stripping assembly 500 is used for driving the ear band to smoothly separate from the limiting groove, so that the ear band can smoothly move with the mask body 20.

[0063] With reference to Figure 11 The stripping assembly 500 can be the push rod member 510 arranged in the limiting groove, the pushing direction of the push rod member 510 is consistent with the opening direction of the limiting groove, the push rod member 510 is actuated to push the ear band when the mask and the ear band are welded by the welding assembly 300, and the ear band is separated from the limiting groove.

[0064] With reference to Figure 12 The stripping assembly 500 can also adopt the air pump (not shown), the stripping air hole 520 is arranged in the feeding module 100 and communicates with the limiting groove, the direction of the stripping air hole 520 is consistent with the opening direction of the limiting groove, the air pump is connected with the stripping air hole 520, the air pump provides high-pressure airflow, the airflow enters the limiting groove through the stripping air hole 520, and the ear band is blown away from the limiting groove by the airflow when the mask and the ear band are welded by the welding assembly 300.

[0065] Of course, when the mask and the ear band are welded by the welding assembly 300, since the bottom surface of the feeding module 100 is downward, that is, the opening direction of the limiting groove is downward, the ear band can also be separated from the limiting groove under the action of its own gravity.

[0066] Referring to Figures 13 to 15 In some embodiments, the first feeding module 110 further comprises a first stripping module 112, the first limiting groove 111 of the first feeding module 110 is arranged horizontally inward, that is, the opening direction of the side opening of the first limiting groove 111 is horizontally inward, the side wall of the first stripping module 112 shields and covers the first limiting groove 111, so that the first limiting groove 111 forms a relatively closed groove, and the first stripping module 112 is arranged to be movable up and down, when the first stripping module 112 moves upward, the first limiting groove 111 is in the form of a side opening structure. Similarly, the second feeding module 120 further comprises a second stripping module 122, the second limiting groove 121 of the second feeding module 120 is arranged horizontally inward, that is, the opening direction of the side opening of the second limiting groove 121 is horizontally inward, the side wall of the second stripping module 122 shields and covers the second limiting groove 121, so that the second limiting groove 121 forms a relatively closed groove, and the second stripping module 122 is arranged to be movable up and down, when the second stripping module 122 moves upward, the second limiting groove 121 is in the form of a side opening structure.

[0067] When the mask and the ear band are welded by the welding assembly 300, the first stripping module 112 and the second stripping module 122 are controlled to move upward synchronously, and the ear band in the first limiting groove 111 and the second limiting groove 121 automatically slides off to realize the stripping operation.

[0068] Referring to Figure 16 The embodiment of the present application provides a mask manufacturing equipment comprising the mask ear band welding device, the mask ear band is cut while being welded and fixed by the mask ear band welding device, the mask ear band cutting process and the mask ear band welding process are combined into one, the mask ear band welding mechanism of the traditional "one drags two" mask machine is abandoned, the number of mechanisms is reduced, the structure is simplified, and the production and processing efficiency of the mask is effectively improved.

[0069] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0070] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. is understood as not including the number, above, below, within, etc. is understood as including the number. If the first, second is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of the indicated technical features.

[0071] In the description of the present application, unless otherwise expressly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0072] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present application.

Claims

1. A mask ear loop welding device, characterized in that, include: A feeding module includes at least one limiting groove and at least one airflow channel communicating with the limiting groove. The limiting groove has an ear loop inlet and an ear loop outlet. The airflow channel is configured to allow airflow to enter so that the airflow can drive the ear loop to be conveyed along the limiting groove. Feeding assembly for selectively locking the ear loop to limit ear loop delivery; and A welding assembly is disposed at the ear loop inlet and ear loop outlet of the feeding module, the welding assembly comprising a first welding die head and a second welding die head that cooperate with each other; The feeding module includes a first feeding module and a second feeding module spaced apart and having a predetermined gap. The first feeding module includes a first limiting groove having a first ear loop inlet and a first ear loop outlet. The second feeding module includes a second limiting groove having a second ear loop inlet and a second ear loop outlet. The first ear loop inlet is opposite to the second ear loop outlet, and the first ear loop outlet is opposite to the second ear loop inlet. The welding assembly is disposed at the predetermined gap. The feeding assembly includes two abutting rollers that press against the ear loop to selectively lock the ear loop.

2. The mask ear loop welding device according to claim 1, characterized in that: A cutting component for cutting the mask body and ear loops is provided on the first welding die and / or the second welding die.

3. The mask ear loop welding device according to claim 2, characterized in that: The first welding die head has a protruding blade at its end, and the second welding die head has a recess at its end that mates with the protruding blade.

4. The mask ear loop welding device according to claim 2, characterized in that: The first welding die has an opening at its end, and a cutting tool protruding through the opening is disposed inside the first welding die. The second welding die has a notch at its end that mates with the cutting tool.

5. The mask ear loop welding device according to claim 1, characterized in that: An infeed channel is provided on the first feeding module and / or the second feeding module, which is connected to the first limiting groove and / or the second limiting groove.

6. The mask ear loop welding device according to claim 5, characterized in that: The airflow channel is arranged adjacent to the feed channel, and the airflow channel intersects the feed channel and forms an acute angle at the intersection.

7. The mask ear loop welding device according to claim 1, characterized in that: The path of the limiting groove is semi-circular.

8. The mask ear loop welding device according to claim 7, characterized in that: The limiting groove is a groove structure with an open bottom or an open side.

9. The mask ear loop welding device according to claim 8, characterized in that: It also includes a material removal assembly for disengaging the ear loop from the limiting groove.

10. The mask ear loop welding device according to claim 9, characterized in that: A material release air hole is provided in the feeding module and communicates with the limiting groove. The material release air hole is configured to selectively introduce airflow so that the mask ear loops are disengaged from the limiting groove.

11. The mask ear loop welding device according to claim 9, characterized in that: The feeding module also includes at least one unloading module that selectively covers the side opening of the limiting groove.

12. Mask manufacturing equipment, characterized in that, Includes the mask ear loop welding device according to any one of claims 1 to 11.

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