Mask ear strap conveying components and welding devices, mask manufacturing equipment

Abstract

The present invention discloses a mask ear band conveying assembly and a welding device, and mask manufacturing equipment. The mask ear band conveying assembly includes a feeding module, the feeding module includes at least one limiting groove and at least one air flow channel connected to the limiting groove, the limiting groove has an ear band inlet and an ear band outlet, wherein the air flow channel is configured to allow air flow to pass through so that the air flow can drive the ear band to be conveyed along the limiting groove; and a feeding assembly for selectively locking the ear band to limit the ear band conveying. The air flow is introduced into the limiting groove through the air flow channel, and the ear band is driven to move and convey in the limiting groove by the air flow. At the same time, the ear band is controlled by the feeding assembly to limit the free movement of the ear band in the limiting groove, ensuring that the ear band is moved and conveyed to a predetermined position, thereby facilitating the subsequent mask ear band welding. The ear band conveying method driven by air flow abandons the complex structural design of the traditional mask machine, and the overall structural setting is simple and compact.

Description

Technical Field

[0001] The present invention relates to the technical field of mask production and manufacturing, and in particular to a mask ear strap conveying assembly and a welding device, and mask manufacturing equipment. Background Art

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

[0003] Existing mask earband welding devices require specialized mechanisms for conveying, winding, cutting, and welding the earbands on both sides of the mask. These mechanisms coordinate with each other to deliver the earbands or ear ropes into position, cut them to a predetermined length, and then secure them to the left and right sides of the mask body using ultrasonic welding. Traditional earband welding devices are complex, requiring various mechanisms to coordinate and perform different operations to complete the welding process. This results in a high failure rate and cumbersome maintenance. Summary of the Invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a mask ear strap conveying assembly and a welding device with a compact structure, high working efficiency and low failure rate.

[0005] The present invention also provides a mask manufacturing device, which includes the above-mentioned welding device.

[0006] An embodiment of the present invention provides a mask earband conveying assembly, comprising: a feeding module, the feeding module including at least one limiting groove and at least one airflow channel connected to the limiting groove, the limiting groove having an earband inlet and an earband outlet, wherein the airflow channel is configured to allow airflow to pass through so that the airflow can drive the earband to be conveyed along the limiting groove; and a feeding assembly for selectively locking the earband to limit earband conveyance.

[0007] The above-mentioned mask ear strap conveying assembly has at least the following beneficial effects: the airflow is introduced into the limit groove through the airflow channel, and the ear strap is driven to move and convey in the limit groove by the help of the airflow; at the same time, the ear strap is controlled by the feeding assembly to limit the free movement of the ear strap in the limit groove, thereby ensuring that the ear strap is moved and conveyed to the predetermined position, thereby facilitating the subsequent welding of the mask ear strap. The ear strap conveying method is driven by airflow, and the complex structural design of the traditional mask machine is abandoned, and the overall structure is simple and compact.

[0008] According to the mask ear strap conveying assembly described in the embodiment of the present invention, the path of the limiting groove is semi-annular or annular.

[0009] According to the mask ear strap conveying assembly described in the embodiment of the present invention, the limiting groove is a groove structure with an open bottom surface.

[0010] According to the mask earband conveying assembly described in an embodiment of the present invention, the feeding module includes a first feeding module and a second feeding module arranged at intervals, the first feeding module includes a first limiting groove having a first earband inlet and a first earband outlet, the second feeding module includes a second limiting groove having a second earband inlet and a second earband outlet, the first earband inlet is opposite to the second earband outlet, and the first earband outlet is opposite to the second earband inlet.

[0011] According to the mask ear strap conveying assembly described in the embodiment of the present invention, the first feeding module and / or the second feeding module is provided with a feeding channel correspondingly connected to the first limiting groove and / or the second limiting groove.

[0012] According to the mask ear strap conveying assembly described in the embodiment of the present invention, the air flow channel is arranged adjacent to the feeding channel, and the air flow channel and the feeding channel intersect and form an acute angle at the intersection.

[0013] According to the mask earband conveying assembly described in an embodiment of the present invention, the feeding assembly includes two rollers that are in abutting contact with each other, and the two rollers press the earband to selectively lock the earband.

[0014] The mask ear strap conveying assembly according to the embodiment of the present invention further includes a suction assembly for sucking the airflow in the limiting groove.

[0015] An embodiment of the present invention provides a mask earband welding device, comprising the above-mentioned mask earband conveying assembly and a welding assembly for welding the earband to the mask.

[0016] An embodiment of the present invention provides a mask manufacturing device, including the above-mentioned mask ear strap welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a partial structural diagram of an embodiment of a mask ear strap conveying assembly of the present invention;

[0019] Figure 2 This is a schematic cross-sectional view of the partial structure of an embodiment of a mask ear strap delivery assembly of the present invention;

[0020] Figure 3This is a schematic cross-sectional view of the partial structure of the first embodiment of the feeding module in the embodiment of the mask ear strap conveying assembly of the present invention;

[0021] Figure 4 This is a schematic cross-sectional view of the partial structure of the second embodiment of the feeding module in the embodiment of the mask ear strap conveying assembly of the present invention;

[0022] Figure 5 This is a schematic cross-sectional view of the partial structure of the third embodiment of the feeding module in the embodiment of the mask ear strap conveying assembly of the present invention;

[0023] Figure 6 This is a schematic cross-sectional view of a local structure in which the air flow channel and the feed channel overlap in an embodiment of the mask ear strap conveying assembly of the present invention;

[0024] Figure 7 This is a schematic cross-sectional view of the partial structure of the air inlet head in an embodiment of the mask welding device of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the local structure of the airflow in the suction limiting groove in the embodiment of the mask welding device of the present invention;

[0026] Figure 9 This is a schematic structural diagram of an embodiment of a mask ear strap welding device of the present invention;

[0027] Figure 10 This is a schematic structural diagram of an embodiment of a mask manufacturing device of the present invention. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0029] Reference Figures 1 to 3 An embodiment of the present invention provides a mask ear band conveying assembly, including a feeding module 100 and a feeding assembly 200 for conveying the ear band 10 to a predetermined position. The feeding module 100 includes a first feeding module 110 and a second feeding module 120 that are spaced apart and have a predetermined gap. 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.

[0030] In the description of this embodiment, the directions of up and down are as follows: Figure 1As shown in the markings, in order to facilitate intuitive understanding of the structural form of the feeding module, the bottom surfaces of the first feeding module 110 and the second feeding module 120 are facing upward. During the actual mask production and processing process, the bottom surfaces of the first feeding module 110 and the second feeding module 120 are facing downward, and the mask body 20 is moved and transported approximately along the bottom surfaces of the first feeding module 110 and the second feeding module 120.

[0031] A first limiting groove 111 is provided on the bottom surface of the first feeding module 110, and a second limiting groove 121 is provided on the bottom surface of the second feeding module 120. The first limiting groove 111 and the second limiting groove 121 are both grooves or embedded groove structures, that is, grooves are dug on the bottom surfaces of the first feeding module 110 and the second feeding module 120 to form an open bottom surface. Figure 1 In the diagram, the direction of the bottom surface opening is upward, and the paths of the first limiting groove 111 and the second limiting groove 121 in the horizontal direction or in the same plane are both semi-circular, and the two are roughly symmetrically distributed. The path formed by the combination of the first limiting groove 111 and the second limiting groove 121 is circular or runway-shaped in the horizontal direction or in the same plane. The head and tail ends of the first limiting groove 111 respectively constitute the first earband entrance 1111 and the first earband exit 1112, and the head and tail ends of the second limiting groove 121 respectively constitute the second earband entrance 1211 and the second earband exit 1212, so that the earband 10 can pass through the first limiting groove 111 and the second limiting groove 121 smoothly.

[0032] The first earband entrance 1111 is opposite to the second earband exit 1212, and the first earband exit 1112 is opposite to the second earband entrance 1211. The earband 10 enters the first earband entrance 1111 of the first limiting groove 111, is sent out through the first earband exit 1112 of the first limiting groove 111, and then enters the second earband entrance 1211 of the second limiting groove 121, and is then sent out through the second earband exit 1212 of the second limiting groove 121. That is, the earband 10 can be continuously circulated and transported in a counterclockwise direction within the first limiting groove 111 and the second limiting groove 121. In order to facilitate the earband 10 to smoothly pass through the second earband entrance 1211 into the second limiting groove 121 and through the first earband entrance 1111 into the first limiting groove 111, both the first earband entrance 1111 and the second earband entrance 1211 are provided with chamfered structures.

[0033] In an embodiment of the present invention, an air flow channel 130 connected to the second limiting groove 121 is provided inside the second feeding module 120. The air flow channel 130 is configured to allow air to pass through. The air flow enters the first limiting groove 111 and the second limiting groove 121 through the air flow channel 130 and flows approximately in a counterclockwise direction. Under the action of the air flow, the ear band 10 is driven by the air flow, and then moves and is transported in a counterclockwise direction in the first limiting groove 111 and the second limiting groove 121.

[0034] It is understandable that the strength of the airflow can be flexibly selected according to actual conditions, as long as it can drive or blow the earband 10 for movement and transportation.

[0035] In some other embodiments, a suction component (not shown) may be further provided to suck the gas in the limiting groove, thereby changing the airflow intensity in the limiting groove, so that the ear band moves more smoothly in the limiting groove. For example, air is blown at the ear band inlet and air is sucked at the ear band outlet, and the two cooperate to move and transport the ear band.

[0036] like Figure 8 As shown, in some embodiments, an air suction channel 150 connected to the second limiting groove 121 is provided inside the second feeding module 120, and the air suction channel 150 is connected to the suction component to evacuate the air suction channel 150. The air suction channel 150 is communicated with the second ear band inlet 1211, and a certain suction force is formed at the second ear band inlet 1211, so that the ear band 10 can pass through the second ear band inlet 1211 more smoothly and smoothly into the second limiting groove 121 under the action of the airflow.

[0037] In an embodiment of the present invention, a feeding channel 140 connected to the second limiting groove 121 is provided in the second feeding module 120. The feeding channel 140 is used for the ear band 10 to enter the feeding module 100. The airflow channel 130 intersects with the feeding channel 140. The airflow enters through the airflow channel 130, driving the ear band 10 located in the feeding channel 140 to move into the first limiting groove 111 and the second limiting groove 121. Specifically, at the intersection of the airflow channel 130 and the feeding channel 140, an acute angle is formed between the central axes thereof, that is, at the intersection, the flow direction of the airflow in the airflow channel 130 and the conveying direction of the ear band 10 in the feeding channel 140 form an acute angle, which is conducive to the airflow driving the ear band 10 to move and convey.

[0038] In the embodiment of the present invention, the position of the movement and conveyance of the earband 10 is controlled by the feeding assembly 200. Specifically, the feeding assembly 200 includes two rollers 210 that are in contact with each other. The earband 10 passes between the two rollers 210. The two rollers 210 clamp the earband 10. At this time, the earband 10 is locked and cannot be moved and conveyed. When the two rollers 210 rotate synchronously in opposite directions, the earband is moved and conveyed under the action of airflow by rolling and pressing the earband. When the two rollers 210 stop rotating, the movement and conveyance of the earband 10 is suspended. In this way, under the dual action of the two rollers 210 rolling and controlling the earband and the airflow driving and controlling the earband, the end of the earband 10 can just be exposed through the second earband outlet 1212 of the second limiting groove 121, thereby making the earband 10 arranged in a ring or racetrack shape in the first limiting groove 111 and the second limiting groove 121, so as to facilitate subsequent welding and cutting processes.

[0039] Through the coordinated cooperation of the feeding module 100 and the feeding assembly 200, the ear strap 10 is moved and transported in the first limiting groove 111 and the second limiting groove 121 and arranged in a ring or runway shape, so that two mask ear straps can be welded at one time later, effectively improving production efficiency.

[0040] The airflow is continuously blown in through the airflow channel 130, which can drive the earband 10 to move and transport. The earband will only move and transport with the airflow when the two rollers 210 rotate synchronously in opposite directions. By controlling the frequency and timing of the rotation of the two rollers 210, the transport position of the earband 10 can be accurately controlled. In other words, by controlling the rotation of the two rollers 210, the earband can be selectively locked.

[0041] It is understandable that the two rollers 210 can also rotate synchronously in opposite directions to pre-deliver the ear strap 10 of a predetermined length, and then the two rollers 210 stop rotating, lock the ear strap 10, and then introduce air into the air flow channel 130. The air flow drives the ear strap 10 into the first limiting groove 111 and the second limiting groove 121 to move and transport and be arranged in a ring or runway shape, that is, the air flow can also be set to intermittent ventilation.

[0042] Of course, in some other embodiments, the feeding assembly 200 may also be provided with only one roller, which is set to press against a plane, and the ear band 10 passes between the roller and the plane. The roller presses the ear band 10, and at this time the ear band 10 is locked and cannot be moved for transportation. When the roller rotates, the ear band is pressed against the rolling ear band so that the ear band can be moved and transported under the action of the airflow. When the roller stops rotating, the movement and transportation of the ear band 10 is suspended.

[0043] In some other embodiments, the feeding assembly 200 can also be configured as a clamping mechanism that can clamp or release the earband 10, that is, it can selectively lock the earband. Similarly, only when the clamping mechanism releases the earband 10 will the earband be transported with the airflow.

[0044] Reference Figure 4 In some embodiments, independent air flow channels 130 can be respectively provided on the first feeding module 110 and the second feeding module 120, and the air flow is guided into the first limiting groove 111 and the second limiting groove 121 through the respective air flow channels 130, thereby driving the ear band 10 to move and transport.

[0045] It is understandable that the number of air flow channels 130 can also be set to multiple, and those skilled in the art can flexibly choose according to actual conditions, as long as the air flow channel 130 is constructed to facilitate the movement and transportation of the ear band 10 driven by the air flow, for example, the air flow channel 130 is tangent to the first limiting groove 111 and / or the second limiting groove 121.

[0046] Reference Figure 5 In some embodiments, independent feeding channels 140 can be respectively provided on the first feeding module 110 and the second feeding module 120. Accordingly, two feeding assemblies 200 are provided for respectively providing two ear bands 10 for correspondingly conveying into the first limiting groove 111 and the second limiting groove 121. The rolling control and airflow driving control of each ear band 10 are the same as those described above and will not be repeated here. Each ear band 10 is moved and conveyed to form a semi-circular shape in the first limiting groove 111 and the second limiting groove 121. The two ear bands 10 can be combined with each other to form a ring or runway shape, which facilitates the subsequent one-time welding of two mask ear bands, thereby effectively improving production efficiency.

[0047] In some embodiments, the air flow channel 130 and the feeding channel 140 can be combined into one, that is, only the air flow channel 130 is provided, and the ear band 10 enters from the air flow channel 130, and the air flow directly drives the ear band 10 located in the air flow channel 130 into the first limiting groove 111 and the second limiting groove 121.

[0048] Reference Figure 6 and Figure 7 The airflow channel 130 can be combined with the feed channel 140 into one, that is, the ear strap 10 enters the first and second limiting grooves 111, 121 along the airflow channel 130. Simultaneously, air flows from the airflow channel 130 into the first and second limiting grooves 111, 121. The airflow channel 130 can be connected to an external hose 131 as an air inlet pipe. An air inlet head 132 is provided at the end of the hose 131. The air inlet head 132 has an annular groove 1321 inside. The annular groove 1321 opens near one end of the hose 131. A through hole 1322 is provided on the sidewall of the air inlet head 132, connecting to the annular groove 1321. The ear strap 10 passes through the hose 131 and enters the airflow channel 130. Air flows in through the air inlet 1322, carrying the ear strap 10 with it into the hose, allowing the ear strap 10 to enter the first and second limiting grooves 111, 121 directly from the airflow channel 130.

[0049] Of course, it is understandable that the feeding module 100 can only be provided with a single limiting groove to cooperate with a single feeding assembly 200 to guide the ear band 10 to be transported in the limiting groove in a semi-circular arrangement so as to weld the ear band to one side of the mask body. In this way, only one mask ear band can be welded at a time.

[0050] Reference Figure 9An embodiment of the present invention provides a mask ear strap welding device, including the above-mentioned mask ear strap conveying assembly and the welding assembly 300. The welding assembly 300 includes a first welding die head and a second welding die head distributed upper and lower. The first welding die head and the second welding die head cooperate with each other to weld the ear strap to the mask.

[0051] In an embodiment of the present invention, the welding assembly 300 is arranged at a predetermined gap between the first feeding module 110 and the second feeding module 120. The mask ear strap conveying assembly continuously moves the ear strap in a circular or runway shape and conveys it to a predetermined position. The welding assembly 300 can weld two mask ear straps at one time, effectively improving production efficiency.

[0052] In some other embodiments, the mask ear strap welding device also includes a cutting component, which is integrated on the welding component. The welding component 300 cuts the ear strap while welding the ear strap, combining the mask ear strap cutting process and the mask ear strap welding process into one, thereby simplifying the mechanical structure to the maximum extent, reducing mechanical parts, making the mechanical structure failure rate lower, and reducing costs due to the simple structure.

[0053] Reference Figure 10 An embodiment of the present invention provides a mask manufacturing equipment, including the above-mentioned mask ear strap welding device, by which the mask ear straps are welded and fixed, thereby abandoning the mask ear strap welding mechanism of the traditional "one-to-two" mask machine, reducing the number of mechanisms, simplifying the structure, and effectively improving the production and processing efficiency of the mask.

[0054] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0055] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0056] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0057] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. Mask ear strap conveying assembly, characterized in that, include: 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 earband inlet and an earband outlet, wherein the airflow channel is configured to allow airflow to flow so that the airflow can drive the earband to be transported along the limiting groove; and a feeding assembly for selectively locking the ear strap to restrict ear strap delivery; The feeding module includes a first feeding module and a second feeding module spaced apart from each other, the first feeding module including a first limiting groove having a first earband inlet and a first earband outlet, the second feeding module including a second limiting groove having a second earband inlet and a second earband outlet, the first earband inlet being opposite to the second earband outlet, and the first earband outlet being opposite to the second earband inlet; An air extraction channel connected to the second limiting groove is provided inside the second feeding module; The feeding assembly includes two rollers in abutting contact, and the two rollers press the ear strap to selectively lock the ear strap.

2. The mask ear strap conveying assembly according to claim 1, characterized in that: The path of the limiting groove is semi-annular or annular.

3. The mask ear strap conveying assembly according to claim 2, characterized in that: The limiting groove is a groove structure with an open bottom surface.

4. The mask ear strap conveying assembly according to claim 1, characterized in that: The first feeding module and / or the second feeding module is provided with a feeding channel correspondingly connected to the first limiting groove and / or the second limiting groove.

5. The mask ear strap conveying assembly according to claim 4, characterized in that: The air flow channel is arranged adjacent to the feed channel, and the air flow channel and the feed channel intersect and form an acute angle at the intersection; Alternatively, the air flow channel and the feed channel are combined into one, the air flow channel is connected to an external hose as an air inlet pipe, an air inlet head is provided at the end of the hose, an annular groove is provided inside the air inlet head, the annular groove is opened close to one end of the hose, and the side wall of the air inlet head is provided with a through hole connected to the annular groove as an air inlet hole.

6. The mask ear strap conveying assembly according to claim 1, characterized in that: It also includes a suction component for sucking the airflow in the limiting groove.

7. Mask ear strap welding device, characterized in that, The invention comprises the mask ear strap conveying assembly according to any one of claims 1 to 6 and a welding assembly for welding the ear straps to the mask.

8. Mask manufacturing equipment, characterized in that, Including the mask ear strap welding device according to claim 7.

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