Ear band line conveying device and mask machine

Abstract

The ear band line conveying device comprises a fixing assembly, a driving assembly and a conveying assembly, the driving assembly is positioned through the fixing assembly, the driving assembly is connected with the conveying assembly, the driving assembly can drive the conveying assembly to perform telescopic movement, the material band of the mask is conveyed through the conveying roller of the mask machine, the ear band line is arranged in the conveying assembly, the direction of the telescopic movement of the conveying assembly is parallel to the axial direction of the conveying roller and is perpendicular to the conveying direction of the conveying roller, and the ear band line can be adjusted to be clamped in the actual length of the two layers of material bands in the mask machine, the mask with the ear band line length greater than the mask width can be manufactured, and the ear band line length is prevented from being too short and being broken.

Description

TECHNICAL FIELD

[0001] The present application relates to a mask production equipment, in particular to an ear band line conveying device for a mask machine and the mask machine. BACKGROUND

[0002] The mask is a kind of sanitary product, generally refers to the filter air entering the nose and mouth part for blocking harmful gas, smell, virus and flying object to enter or exit the nose and mouth of the wearer, and the mask is mainly made of non-woven fabric and gauze cloth, the mask has a certain filtering effect on the air entering the lung, and when the respiratory tract infectious disease prevails or when working in a dusty and polluted environment, wearing a mask has a very good effect.

[0003] The existing mask is generally automatically produced by using a mask production equipment, the mask production equipment is used to manufacture various masks with certain filtering performance through the processes of hot pressing, folding forming, ultrasonic welding, waste material cutting, ear band and nose bridge strip welding, etc. The mask equipment is not a single machine, and it needs cooperation of multiple machines to complete various different processes. The mask includes a mask body and an ear band line, the ear band line is fixed on the mask body, and the ear band line is used to fix the mask body on the face of a user to achieve the effect of filtering air.

[0004] The application patent application with the application publication number CN111169993A discloses an ear line conveying device for mask production, which comprises a rack, an ear line conveying mechanism arranged on the rack, and an ear line clamping and conveying mechanism for clamping and conveying the ear line conveyed by the ear line conveying mechanism to the ear line welding station synchronously with the mask strip. Wherein, the ear line clamping and conveying mechanism is two groups, respectively located on both sides of the ear line welding station, each group of ear line clamping and conveying mechanism comprises a plurality of line clamping mechanisms for clamping the ear line and an ear line conveying driving mechanism for driving the line clamping mechanisms to move circularly to promote the synchronous movement of the ear line and the mask strip. The mask strip passes through above the ear line welding station, the ear line clamped by the line clamping mechanism is located on the upper side of the mask strip, and the ear line clamping mechanisms clamped by the ear line conveying driving mechanism move synchronously with the mask strip.

[0005] However, the ear line conveying device for mask production has the following deficiencies:

[0006] For example, Figure 1As shown, for duckbill-shaped masks and head-mounted masks, because the ear wire moves synchronously with the mask strip, the above device can only produce masks with ear band wire length equal to the mask opening width, because the ear band wire can only be clamped in the upper and lower layers of the material belt in the shape of an approximate straight line, so the length of the ear band wire is consistent with the length of the material belt, and the material belt is conveyed by the length of the ear band wire. When the material belt is segmented and cut to produce one mask after another, the length of the ear band wire in each mask is the opening width of the mask, so the above device cannot produce masks with ear band wire length greater than the opening width of the mask, and cannot control the length of the ear band wire, so that the ear band wire of the mask often breaks due to insufficient length. SUMMARY

[0007] The purpose of the present application is to overcome the shortcomings of the prior art, provide an ear band wire conveying device for use in a mask machine, which can adjust the actual length of the ear band wire clamped in the two layers of material belt, can produce masks with ear band wire length greater than the mask width, and the length of the ear band wire can be controlled to vary.

[0008] An ear band wire conveying device, comprising a fixed assembly, a driving assembly and a conveying assembly, the driving assembly is positioned by the fixed assembly, the driving assembly and the conveying assembly are connected, the driving assembly can drive the conveying assembly to perform telescopic movement, the material belt of the mask is conveyed by the conveying roller of the mask machine, the ear band wire is arranged in the conveying assembly, the direction of the telescopic movement of the conveying assembly is parallel to the axis direction of the conveying roller and perpendicular to the conveying direction of the conveying roller.

[0009] Further, the fixed assembly comprises a fixed plate, a first fixed part and a second fixed part, the first fixed part and the second fixed part are fixed on the fixed plate.

[0010] Further, the driving assembly comprises a servo motor, a lead screw and a lead screw nut, the servo motor is fixedly connected with the first fixed part in the fixed assembly, one end of the lead screw is connected with the output shaft of the servo motor, and the lead screw nut is matched with the lead screw.

[0011] Further, the two ends of the lead screw are positioned in the first fixed part and the second fixed part in the fixed assembly.

[0012] Further, a bearing is arranged between the lead screw and the first fixed part and the second fixed part.

[0013] Further, the conveying assembly comprises a conveying rod and a wire guide ring, the conveying rod is fixedly connected with the lead screw nut in the driving assembly, one end of the conveying rod is connected with the wire guide ring, and the ear band wire is arranged in the wire guide ring.

[0014] Further, the driving assembly and the conveying assembly are two groups, and two ear band wires are respectively arranged in the two conveying assemblies.

[0015] Furthermore, the two sets of conveying components can move synchronously or asynchronously.

[0016] The present invention also provides a mask machine, including the above-mentioned ear loop conveying device.

[0017] Furthermore, the fixing component (100) of the ear loop conveying device is fixedly connected to the frame of the mask machine.

[0018] The beneficial effects of this invention are: within a certain range, the length of the ear loops can be controlled by adjusting the frequency, amplitude, and start / stop timing of the linear telescopic movement of the conveyor rod. In other words, the length of the ear loops can be flexibly adjusted, and the lengths of the two ear loops of the mask can be different, so that the ear loops of the mask can fully meet the personalized needs and usage requirements, and prevent the ear loops of the mask from breaking due to insufficient length. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the shapes of duckbill-shaped masks and headband masks in the prior art;

[0021] Figure 2 This is a schematic diagram of the overall structure of the mask-making machine in a specific implementation embodiment;

[0022] Figure 3 This is a bottom view of the ear loop delivery device in Example 1;

[0023] Figure 4 This is a perspective view of the ear loop delivery device in Example 1;

[0024] Figure 5 This is a schematic diagram of the mask-making machine in Example 1;

[0025] Figure 6 for Figure 5 Enlarged view of part B in the image;

[0026] Figure 7 This is a schematic diagram of the shape of a one-piece duckbill-shaped face mask.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100 - fixing assembly; 101 - fixing plate; 102 - first fixing part; 103 - second fixing part; 200 - driving assembly; 201 - servo motor; 202 - screw rod; 203 - screw nut; 300 - conveying assembly; 301 - conveying rod; 302 - wire ring; 400 - support rod assembly; 500 - ear band wire threading assembly.

[0029] 1000 - ear band wire conveying device; 2000 - folding and wrinkle pressing device; 3000 - rack; 4000 - feeding device; 5000 - nose bridge strip mounting device; 6000 - preliminary pressing device; 7000 - forming and discharging device. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0031] Reference Figure 2 A mask machine includes a feeding device 4000, a nose bridge strip mounting device 5000, a preliminary pressing device 6000, a folding and wrinkle pressing device 2000, an ear band wire conveying device 1000 and a forming and discharging device 7000. The feeding device 4000 is arranged on one side of a workbench. The nose bridge strip mounting device 5000, the preliminary pressing device 6000 and the forming and discharging device 7000 are arranged on the workbench. The folding and wrinkle pressing device 2000 and the ear band wire conveying device 1000 are arranged in vertical direction on the rack 3000.

[0032] In the production of masks, mask layer materials are horizontally conveyed on different cloth rollers of the feeding device 4000 along the workbench. The nose bridge strip mounting device 5000 installs a nose bridge strip on the mask layer materials during the conveying of the mask layer materials. Then, the preliminary pressing device 6000 preliminarily presses the mask layer materials. After that, the folding and wrinkle pressing device 2000 realizes the folding of the mask layer materials and generates a wrinkle in the middle position. The ear band wire conveying device 1000 installs an ear band wire in the middle of the mask layer materials in the folding and wrinkle pressing device 2000. After the installation of the ear band wire is completed, the forming and discharging device 7000 forms and cuts the mask. Through the above steps, the mask is automatically produced, manual operation is reduced, and a one-piece duckbill-shaped mask with adjustable ear band wire length can be produced, and the production effect is high.

[0033] The feeding device 4000, the nose bridge strip mounting device 5000, the preliminary pressing device 6000 and the forming and discharging device 7000 are similar to the structure of the existing mask machine. Embodiment 1 describes the ear band wire conveying device 1000 in detail.

[0034] Embodiment 1

[0035] Referring to Figures 3-5 An ear band line conveying device comprises a fixing assembly 100, a driving assembly 200 and a conveying assembly 300, the driving assembly 200 is positioned through the fixing assembly 100, the driving assembly 200 and the conveying assembly 300 are connected, the driving assembly 200 can drive the conveying assembly 300 to perform telescopic movement, two layers of material belts of a mask are clamped in conveying rollers of a mask machine, an ear band line is arranged in the conveying assembly 300 and is located between the two layers of material belts, the conveying assembly 300 is located above the conveying rollers, the direction of the telescopic movement of the conveying assembly 300 is parallel to the axial direction of the conveying rollers and is perpendicular to the conveying direction of the conveying rollers.

[0036] The fixing assembly 100 comprises a fixing plate 101, a first fixing part 102 and a second fixing part 103, the first fixing part 102 and the second fixing part 103 are fixed on the fixing plate 101.

[0037] The driving assembly 200 comprises a servo motor 201, a lead screw 202 and a lead screw nut 203, the servo motor 201 is fixedly connected with the first fixing part 102, one end of the lead screw 202 is connected with an output shaft of the servo motor 201, the lead screw nut 203 is matched with the lead screw 202, two ends of the lead screw 202 are positioned in the first fixing part 102 and the second fixing part 103, bearings are arranged between the lead screw 202 and the first fixing part 102 and the second fixing part 103.

[0038] The conveying assembly 300 comprises a conveying rod 301 and a wire ring 302, the conveying rod 301 is fixedly connected with the lead screw nut 203, the conveying rod 301 is connected with the wire ring 302 with holes at the end, and the ear band line is arranged in the wire ring 302.

[0039] The wire ring 302 is made of low-friction material such as POM plastic, so that the ear band line can be smoothly pulled after passing through the wire ring 302.

[0040] The driving assembly 200 and the conveying assembly 300 are two groups, two ear band lines are respectively arranged in the two wire rings 302, the servo motor 201 drives the lead screw 202 to rotate, thereby driving the lead screw nut 203 and the conveying rod 301 and the wire ring 302 to perform linear telescopic movement, the ear band line is pressed in the conveying rollers by two layers of materials of a mask body after passing through the wire ring 302, and is conveyed forward as the conveying rollers are pressed in the material belts, in the process of conveying the mask material belts, the conveying rod 301 is controlled to perform linear telescopic movement perpendicular to the conveying direction, the position of the wire ring 302 along the axial direction of the conveying rollers is controlled, and the position of the ear band line pressed between the two layers of material belts is controlled.

[0041] The two conveying assemblies 300 can move synchronously or asynchronously, for example, the conveying rod 301 where one ear band line is located does not move, so that the length of the ear band line is equal to the width of the mask body, and the trajectory of the ear band line is a straight line, and the conveying rod 301 where the other ear band line is located continuously performs linear extension and contraction movement, and the ear band line presents a wavy shape or a polyline shape after being clamped by the material belt. After the ear band line is clamped in the material belt in such a shape, the mask formed after the edge welding and cutting processes can have a length greater than the width of the mask body.

[0042] By controlling the frequency and amplitude of the linear movement of the conveying rod 301 and the start and end time, the actual length of each ear band line in each mask can be controlled.

[0043] The ear band line conveying device further comprises a support rod assembly 400 and an ear band line threading assembly 500.

[0044] The support rod assembly 400 comprises a pair of parallel support rods, the axis of the support rod is parallel to the axis of the conveying roller, and the support rod is arranged above the conveying roller of the mask machine. The support rod 400 is arranged between the two layers of mask body materials, and the support rod 400 provides a space for the conveying rod 301 and the wire ring 302 of the conveying assembly 300, so that the ear band line can naturally droop in the space. The lower end of the ear band line is accommodated in the middle of the conveying roller and is conveyed downward together with the mask material along with the rotation of the conveying roller.

[0045] The ear band line threading assembly 500 is two, and two ear band lines are respectively threaded therein. The ear band line is flat, and the direction of the ear band line can be maintained when the ear band line passes through the threading assembly 500 to prevent the ear band line from being twisted. The ear band line threading assembly 500 is fixedly connected to the rack of the mask machine.

[0046] Embodiment 2

[0047] A mask machine comprises the ear band line conveying device of embodiment 1, and the fixed plate 101 is fixedly connected to the rack 3000 of the mask machine.

[0048] Embodiment 3

[0049] The driving assembly 200 in the embodiment comprises a cylinder, the output end of the cylinder is fixedly connected to the output rod 301, the two ends of the output rod 301 are provided with stop rings to control the amplitude of the movement of the cylinder, and the frequency of the extension and contraction movement is controlled by controlling the air connection and disconnection of the two cavities of the cylinder.

[0050] Embodiment 4

[0051] The driving assembly 200 in the embodiment comprises a cam, the rotation of the cam can drive the output rod 301 to perform extension and contraction movement, and a mask with a specific ear band line length can be manufactured by designing a specific shape of the cam.

[0052] Finally, it should be noted that the terms "first", "second", and the like, herein do not denote any order, quantity, combination, or importance, but rather are used to distinguish one element from another, and are not necessarily intended to denote the temporal or chronological sequence of the elements. Also, the use of the terms "including", "containing" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0053] The various embodiments described in this specification are presented by way of example, and are not intended to limit the scope of the application. The various embodiments described in this specification can be combined or combined in any order to provide other embodiments. Various embodiments described in this specification can be implemented in one or more of the following examples. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are not intended to limit the scope of the application. The following examples are provided as illustrative examples only and are

Claims

1. An ear band line delivery device, characterized by, The ear band line conveying device comprises a fixed assembly (100), a driving assembly (200) and a conveying assembly (300), the driving assembly (200) is positioned by the fixed assembly (100), the driving assembly (200) and the conveying assembly (300) are connected, the driving assembly (200) can drive the conveying assembly (300) to perform telescopic movement, a mask material belt is conveyed by a conveying roller of a mask machine, an ear band line is arranged in the conveying assembly (300), the direction of the telescopic movement of the conveying assembly (300) is parallel to the axis direction of the conveying roller and perpendicular to the conveying direction of the conveying roller. The driving assembly (200) comprises a servo motor (201), a lead screw (202) and a lead screw nut (203), the servo motor (201) is fixedly connected with a first fixing part (102) in the fixed assembly (100), one end of the lead screw (202) is connected with an output shaft of the servo motor (201), and the lead screw nut (203) is matched with the lead screw (202). The driving assembly (200) further comprises a cam, the cam rotates to drive the conveying rod (301) to perform telescopic movement. The driving assembly (200) further comprises a cylinder, an output end of the cylinder is fixedly connected with the conveying rod (301). The conveying assembly (300) comprises a conveying rod (301) and a wire ring (302), the conveying rod (301) is fixedly connected with the lead screw nut (203) in the driving assembly (200), one end of the conveying rod (301) is connected with the wire ring (302), and the ear band line is arranged in the wire ring (302). The wire ring (302) is made of low-friction material, so that the ear band line can be smoothly pulled after passing through the wire ring (302).

2. An ear band line delivery device according to claim 1, wherein, The fixed assembly (100) comprises a fixed plate (101), a first fixing part (102) and a second fixing part (103), the first fixing part (102) and the second fixing part (103) are fixed on the fixed plate (101).

3. An ear band line delivery device according to claim 1, wherein, Both ends of the lead screw (202) are positioned in the first fixing part (102) and the second fixing part (103) in the fixed assembly (100).

4. An ear band line delivery device according to claim 3, wherein, Bearings are arranged between the lead screw (202) and the first fixing part (102) and the second fixing part (103).

5. An ear band line delivery device according to claim 1, wherein, The driving assembly (200) and the conveying assembly (300) are two groups, and two ear band lines are arranged in the two conveying assemblies (300) respectively.

6. An ear band line delivery device according to claim 5, wherein, The two groups of conveying assemblies (300) move synchronously or asynchronously.

7. A mask machine characterized by, The ear band line conveying device comprises the ear band line conveying device according to any one of claims 1-6.

8. A mask machine according to claim 7, characterized in that The fixed assembly (100) of the ear band line conveying device is fixedly connected with a rack of a mask machine.

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