Mask sling hot shaping harness

By designing a heat-shaping fixture for mask straps, and utilizing the hinge connection and heating mechanism of Module 1 and Module 2, the unevenness of the straps during the welding process was solved, improving the smoothness and wearing comfort of the straps.

CN223548263UActive Publication Date: 2025-11-14SHANDONG GUOYE SAFETY SCI & TECH CO LTD
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Patent Information

Application Number
CN202423183253.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-11-14
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Mask straps are prone to bending and deformation during the welding process, resulting in uneven wearing, causing pressure and pain to the ears, and reducing the wearing experience.

Method used

Design a heat-shaping fixture for mask straps, comprising module one and module two connected by hinges, equipped with a material trough and a heating mechanism for shaping and welding the straps. The module is made of aluminum and is equipped with a heating tube and a temperature control device to achieve high-temperature shaping of the straps.

Benefits of technology

The problem of unevenness in the welding process of the ear loops has been solved, improving the smoothness and wearing comfort of the ear loops and reducing the pressure and pain in the ears.

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Abstract

The utility model relates to the technical field of respirator protective articles, in particular to a mask sling hot shaping harness which comprises a first module, a second module and a heating mechanism, the second module and the first module are distributed up and down and are both of a long-strip-shaped cuboid structure, and the first module and the second module are fixedly connected through a hinge and can be opened and closed; a first material groove and a second material groove are formed in the side wall of the connecting position of the first module and the second module respectively and form a containing groove used for restraining a hanging belt. And heating mechanisms are mounted in the module I and the module II. The hot shaping harness for the mask hanging belt is simple in structure and convenient to install, and solves the problems that the hanging belt is uneven and curled and deformed in the welding process of the mask hanging belt.
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Description

Technical Field

[0001] This utility model relates to the technical field of respirator protective equipment, specifically to a heat shaping device for mask straps, which is applied to the welding equipment for protective mask straps. Background Technology

[0002] In various fields of industry, medicine, and daily life, masks and face shields have become indispensable protective equipment. With technological advancements, the fit of the mask to the face and the comfort of the straps around the ears have increasingly become key indicators of mask quality. As a professional mask manufacturer, we have found in our production process that the straps, usually made of knitted fiber materials, are prone to bending and deformation during welding, which undoubtedly increases production difficulty. Furthermore, this bending and deformation can lead to unevenness when worn, causing pressure, tightness, and even pain around the ears, significantly reducing the wearing experience.

[0003] To overcome the shortcomings of existing technologies, we have specially designed a heat-shaping fixture for mask straps, which is used on strap welding equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a mask strap heat shaping device, including module one, module two and heating mechanism. Module two and module one are distributed vertically and are both long rectangular parallelepiped structures. Module one and module two are fixedly connected by hinges and can be opened and closed.

[0005] Material trough 1 and material trough 2 are respectively provided on the side wall where module 1 and module 2 meet. Material trough 1 and material trough 2 together form a placement trough for restraining the hanging strap.

[0006] Both Module 1 and Module 2 are equipped with heating mechanisms.

[0007] Preferably, module one and module two are made of aluminum.

[0008] Preferably, the lengths of module one and module two are controlled to be greater than the length of a single feeding and greater than the required length of the mask strap.

[0009] Preferably, the width of the placement groove formed by the two closed modules 1 and 2 is the width of the hanging strap, and the depth is the thickness of the hanging strap.

[0010] Preferably, the hinge has a hinge pin in the middle, and the two sides of the hinge are respectively installed on module one and module two by hinge screws. Both the side walls of module one and module two are provided with hinge fixing screw holes. The lower side of module one is provided with a fixing bracket, which is fixedly connected to module one by fixing screws.

[0011] Preferably, magnets are provided on one side of the opening of both module one and module two.

[0012] Preferably, the heating mechanism includes a pipe hole one and a pipe hole two respectively opened inside module one and module two. Both pipe hole one and pipe hole two are through along the length of module one and module two. Heating pipe one and heating pipe two are respectively provided in pipe hole one and pipe hole two, and one end of heating pipe one and heating pipe two are provided with heating pipe terminal.

[0013] Preferably, the heating mechanism further includes a thermocouple and a temperature control device. The thermocouple is installed inside either module one or module two, and the thermocouple, heating tube one, and heating tube two are all connected to the temperature control device.

[0014] Preferably, the heat-forming fixture is applied to a mask strap welding equipment.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] The mask strap heat shaping fixture of this utility model has a simple structure and is easy to install. It solves the problems of unevenness and curling deformation of the straps in the mask strap welding process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a mask strap heat shaping device provided in an embodiment of this application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of a mask strap heat shaping device provided in an embodiment of this application. Figure 2 :

[0019] Figure 3 This is a partially enlarged view of a heat-shaping device for mask straps provided in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the opening and closing state of a mask strap heat shaping device provided in an embodiment of this application;

[0021] Figure 5 This is an exploded view of a mask strap heat shaping device provided in an embodiment of this application.

[0022] In the picture:

[0023] 1. Module 1; 2. Module 2; 3. Heating tube 1; 4. Heating tube 2; 5. Tube hole 1; 6. Tube hole 2; 7. Thermocouple; 8. Feed trough 1; 9. Feed trough 2; 10. Hinge; 11. Magnet; 12. Hinge pin; 13. Fixing bracket; 14. Fixing screw; 15. Hinge fixing screw hole; 16. Heating tube wiring terminal. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0025] Example

[0026] Please see Figures 1-5 In this embodiment, a heat shaping device for mask straps is provided. It is applied to a mask strap welding equipment and includes a module 1, a module 2 and a heating mechanism. The modules 2 and 1 are distributed vertically and are both long rectangular structures. The modules 1 and 2 are fixedly connected by a hinge 10 and can be opened and closed. The modules 1 and 2 are made of aluminum.

[0027] Material groove 1 8 and material groove 2 9 are respectively provided on the side wall where module 1 and module 2 meet. Material groove 1 8 and material groove 2 9 form a placement groove for constraining the hanging strap. When the two modules are closed, the width of the placement groove is the width of the hanging strap and the depth is the thickness of the hanging strap, so that the hanging strap can be completely constrained in the material groove and smoothly fit the material groove.

[0028] In addition, heating mechanisms are installed in both Module 1 and Module 2. The heating mechanisms heat and shape the straps. The length of Module 1 and Module 2 is controlled to be greater than the length of one feeding and greater than the required length of the mask straps, so as to ensure that each feeding can be heated and shaped evenly.

[0029] Specifically, hinge 10 has a hinge pin 12 in the middle, and hinge 10 can rotate around hinge pin 12. The two sides of hinge 10 are respectively installed on module 1 and module 2 by hinge screws. Both the side walls of module 1 and module 2 are provided with hinge fixing screw holes 15. The hinge screws are adapted to the hinge fixing screw holes 15 to achieve fixation.

[0030] A fixing bracket 13 is provided on the lower side of module 1. The fixing bracket 13 is fixedly connected to module 1 by fixing screws 14. The fixing bracket 13 enables the hot forming fixture to be installed on the welding equipment. In addition, magnets 11 are provided on one side of the opening of module 1 and module 2. After the two are closed together, they can be fixed by magnets 11, which is simple and convenient.

[0031] The heating mechanism includes two pipe holes, one 5 and the other 6, respectively, located inside modules 1 and 2. Both pipe holes 5 and 6 extend along the length of modules 1 and 2. Heating tubes 3 and 4 are respectively installed within pipe holes 5 and 2 to provide heat to the shaping device. Each heating tube 3 and heating tube 4 has a heating tube terminal 16 at one end for connection to an external heating power source.

[0032] The heating mechanism also includes a thermocouple 7 and a temperature control device (not shown in the figure). The thermocouple 7 is installed inside either module 1 or module 2. Furthermore, the thermocouple 7, heating tube 3, and heating tube 4 are all connected to the temperature control device, which can monitor the temperature and adjust it through the temperature control device.

[0033] Since the modules are hot during operation, the hinge 10 design facilitates quick opening and closing to avoid burns. When it is necessary to change or re-thread the material, it can be opened quickly for easy material threading. Magnets 11 are provided at the opening and closing points of the two modules as a locking device, which is simple, quick and safe.

[0034] The temperature of this device is selected according to the material parameters of the hanging strip. The heating tube 3 and heating tube 4 are controlled by the temperature control device to heat the modules 1 and 2. The principle is simple and the operation is quick. When the hanging strip passes through the heated modules 1 and 2, it will soften under the action of high temperature and the constraint of the corresponding size of the material troughs 8 and 9, and smoothly fit into the material trough. When the next feeding is carried out, the heated section of the hanging strip will be pulled out of the material trough of this shaping device and cooled externally. This action is repeated to achieve heating and shaping for each feeding.

[0035] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A heat-shaping device for mask straps, characterized in that, It includes Module 1 (1), Module 2 (2) and heating mechanism. Module 2 (2) and Module 1 (1) are distributed vertically and are both long rectangular cuboid structures. Module 1 (1) and Module 2 (2) are fixedly connected by hinges (10) and can be opened and closed. Material trough 1 (8) and material trough 2 (9) are respectively provided on the side wall where module 1 (1) and module 2 (2) meet. Material trough 1 (8) and material trough 2 (9) form a placement trough for restraining the hanging strap. Heating mechanisms are installed in both Module 1 (1) and Module 2 (2).

2. The heat-shaping device for mask straps according to claim 1, characterized in that, Module 1 (1) and Module 2 (2) are made of aluminum.

3. The heat-shaping device for mask straps according to claim 2, characterized in that, The lengths of Module 1 (1) and Module 2 (2) are controlled to be greater than the length of a single feeding and greater than the required length of the mask strap.

4. The heat-shaping device for mask straps according to claim 3, characterized in that, The width of the placement slot formed by the two closed modules (1) and (2) is the width of the hanging strap, and the depth is the thickness of the hanging strap.

5. A heat-shaping device for mask straps according to claim 1, characterized in that, The hinge (10) has a hinge pin (12) in the middle. The two sides of the hinge (10) are respectively installed on module 1 (1) and module 2 (2) by hinge screws. The side walls of module 1 (1) and module 2 (2) are provided with hinge fixing screw holes (15). The lower side of module 1 (1) is provided with a fixing bracket (13), which is fixedly connected to module 1 (1) by fixing screws (14).

6. A heat-shaping device for mask straps according to claim 1, characterized in that, Magnets (11) are provided on one side of the opening of both Module 1 (1) and Module 2 (2).

7. A heat-shaping device for mask straps according to claim 1, characterized in that, The heating mechanism includes a first hole (5) and a second hole (6) respectively opened inside the first module (1) and the second module (2). The first hole (5) and the second hole (6) are both through the length of the first module (1) and the second module (2). The first hole (5) and the second hole (6) are respectively provided with a heating tube (3) and a heating tube (4), and one end of the first heating tube (3) and the second heating tube (4) is provided with a heating tube terminal (16).

8. A heat-shaping device for mask straps according to claim 7, characterized in that, The heating mechanism also includes a thermocouple (7) and a temperature control device. The thermocouple (7) is installed inside either module one (1) or module two (2). The thermocouple (7), heating tube one (3), and heating tube two (4) are all connected to the temperature control device.

9. A heat-shaping device for mask straps according to any one of claims 1-8, characterized in that, The heat-forming fixture is used in mask strap welding equipment.