Ear line tightness adjusting device of mask machine

Abstract

The utility model relates to the technical field of mask machines, and provides a mask machine ear line tightness adjusting device, which is characterized in that the inner side of a rotating wheel is fixedly connected with a spacer bush, the outer wall of the spacer bush is fixedly connected with an elastic layer, the outer wall of the elastic layer is fixedly connected with a buffer layer, the outer wall of the buffer layer is fixedly connected with a resistance increasing layer, and the resistance increasing layer is fixedly connected with the rotating wheel. And the outer wall of the spacer bush is provided with a correction assembly for guiding the position of the ear wire. The spacer bush is arranged on the rotating wheel to guide the ear line, the resistance increasing layer is arranged in the guiding process to increase the friction force between the ear line and the rotating wheel, and the buffer layer and the elastic layer are arranged at the bottom of the resistance increasing layer to be matched to increase the elasticity between the ear line and the rotating wheel. The resistance increasing layer, the buffer layer and the elastic layer are arranged to further improve the friction force and the elasticity between the ear line and the rotating wheel, and the two limiting rings are arranged to clamp the ear line in the middle, so that the ear line can be limited and corrected, and the function of preventing the ear line from inclining in the guiding process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mask machines, and specifically, to an earline tightness adjusting device for a mask machine. Background Art

[0002] A mask is a hygiene and epidemic prevention product, generally referring to a device worn over the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, droplets, viruses and other substances, and is made of materials such as gauze or paper. The mask has a certain filtering effect on the air entering the lungs. When respiratory infectious diseases are prevalent or when working in a polluted environment such as dust, wearing a mask has a very good effect. Masks can be divided into air-filtering masks and air-supplied masks. A mask machine manufactures various masks with certain filtering performance through processes such as hot pressing, folding and forming, ultrasonic welding, waste removal, and welding of ear straps and nose bridge strips for multiple layers of non-woven fabrics. The mask production equipment is not a single machine, and it requires the cooperation of multiple machines to complete various different processes. The more popular mask equipment in the market includes: cup-shaped mask machines, non-woven fabric flat mask machines, N95 mask machines, 3M9001 / 9002 folding mask machines, duckbill-shaped mask machines, three-dimensional dust-proof mask machines, etc. The string behind the ear-string mask is called an ear string, which is used to fix the mask on the ears when the wearer wears the mask. During the production process of various mask machines, welding the ear line is a discrete process, that is, one end of the ear line is intercepted within a certain period of time as the ear band of the mask for welding. In this production mode, the mask machine must straighten the ear line through a certain mechanism to prepare for the pulling mechanism to intermittently extract an appropriate length of ear band.

[0003] After retrieval, the utility model patent with the publication number CN219650590U discloses an earline tightness adjusting device for a mask machine, including an adjusting seat and a baffle. On the left and right sides of the top of the adjusting seat, first support rods are fixedly installed. Through holes are provided inside the first support rods. A stop block is fixedly installed through the middle lower part of the first support rods. A fixing block is provided on the lower right side of the first support rods. A connecting rod is provided in the middle cavity of the fixing block. The connecting rod is fixedly connected to the baffle through the through slots and rotating wheels in the middle of the two first support rods. The rotating wheel is located inside the slot. Oil paper is fixedly installed inside the slot and the rotating wheel. An adjusting block is fixedly installed above the stop block. A second support rod is fixedly installed on the top of the adjusting block. The external thread on the outside of the second support rod fits with the internal thread inside the adjusting block. The bottom of the second support rod fits with the through hole inside the first support rod. The top of the second support rod is fixedly connected to the top plate through a fixing plate. Guide wheels are fixedly installed on the left and right sides of the top plate;

[0004] However, in the implementation of related technologies, it is found that the above-mentioned earline tightness adjustment device for mask machines has the following problems: In the existing earline tightness adjustment device for mask machines, oiled paper is used to increase the friction and elasticity between the earline and the rotating wheel. However, the surface of the oiled paper is firm and smooth, and it cannot generate a force to hinder relative movement when contacting the earline, so the expected effect cannot be achieved, and the elastic effect is not good.

[0005] Therefore, an earline tightness adjustment device for mask machines is needed. Utility Model Content

[0006] The present utility model provides an earline tightness adjustment device for mask machines, which solves the problem that in related technologies, oiled paper is used to increase the friction between the earline and the rotating wheel, but the surface of the oiled paper is firm and smooth and cannot generate a force to hinder relative movement when contacting the earline.

[0007] The technical solution of the present utility model is as follows: An earline tightness adjustment device for mask machines includes an adjustment base, a rotating wheel, and a baffle. On the left and right sides of the top of the adjustment base, support rods are fixedly connected. Below the middle of the support rods, a stopper is fixedly installed through. Above the stopper, an adjustment block is fixedly installed. On the right side below the support rods, there is a fixed block. In the middle of the inner cavity of the fixed block, there is a connecting rod. The end of the connecting rod far from the fixed block is fixedly connected to the rotating wheel and the baffle. Inside the rotating wheel, a spacer sleeve is fixedly connected. On the outer wall of the spacer sleeve, an elastic layer is fixedly connected. On the outer wall of the elastic layer, a buffer layer is fixedly connected. On the outer wall of the buffer layer, a resistance-increasing layer is fixedly connected. On the outer wall of the spacer sleeve, a correction assembly for guiding the earline is provided.

[0008] Preferably, the elastic layer is made of nano-rubber.

[0009] Preferably, the buffer layer is made of Teflon plastic.

[0010] Preferably, the resistance-increasing layer is made of polyurethane coating.

[0011] Preferably, a number of buffer holes are annularly opened on the outer wall of the buffer layer.

[0012] Preferably, the correction assembly includes a limit ring sleeved on the outer wall of the resistance-increasing layer. On the side of the limit ring, an elastic airbag is fixedly connected. The end of the elastic airbag far from the limit ring is fixedly connected to the inner wall of the spacer sleeve. Inside the elastic airbag, there is a spring. The left and right ends of the spring are respectively fixedly connected to the inner wall of the spacer sleeve and the side of the limit ring.

[0013] Preferably, the outer wall of the elastic airbag is provided with ventilation holes that communicate with the inside of the elastic airbag.

[0014] Preferably, the spring is sleeved inside the elastic airbag, and the surface of the spring does not contact the inner wall of the elastic airbag.

[0015] The working principle and beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, a spacer sleeve is arranged on the rotating wheel to guide the earwire. During the guiding process, a resistance increasing layer is arranged to increase the friction between the earwire and the rotating wheel. At the bottom of the resistance increasing layer, a buffer layer and an elastic layer are cooperated to increase the elasticity between the earwire and the rotating wheel. By arranging the resistance increasing layer, the buffer layer and the elastic layer, the friction and elasticity between the earwire and the rotating wheel are further improved. Two limiting rings are arranged to clamp the earwire in the middle, which can limit and correct the earwire. Therefore, it has the function of preventing the earwire from tilting sideways during the guiding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a side view structural schematic diagram of the present utility model;

[0020] Figure 3 is a partial structural schematic diagram of the rotating wheel of the present utility model;

[0021] Figure 4 is the present utility model proposed Figure 3 an enlarged structural schematic diagram of A in;

[0022] Figure 5 is a schematic diagram of the surface structure decomposition of the spacer sleeve of the present utility model;

[0023] Figure 6 is a sectional view structural schematic diagram of the elastic airbag of the present utility model.

[0024] In the figure: 1 adjusting seat; 11 support rod; 12 stopper; 13 baffle; 14 adjusting block; 15 fixing block; 16 connecting rod; 17 rotating wheel; 2 spacer sleeve; 3 elastic layer; 4 buffer layer; 41 buffer hole; 5 resistance increasing layer; 6 correction assembly; 61 elastic airbag; 62 limiting ring; 63 spring; 65 ventilation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0026] Please refer to Figures 1 to 6 , the present invention provides a technical solution for an earline tightness adjustment device of a mask machine: an earline tightness adjustment device of a mask machine, including an adjustment seat 1, a rotating wheel 17, and a baffle 13. On the left and right sides of the top of the adjustment seat 1, support rods 11 are fixedly connected. Below the middle of the support rod 11, a stopper 12 is fixedly installed through. Above the stopper 12, an adjustment block 14 is fixedly installed. On the right side below the support rod 11, there is a fixed block 15. In the middle of the inner cavity of the fixed block 15, there is a connecting rod 16. One end of the connecting rod 16 far from the fixed block 15 is fixedly connected to the rotating wheel 17 and the baffle 13;

[0027] A spacer sleeve 2 is fixedly connected to the inner side of the rotating wheel 17. An elastic layer 3 is fixedly connected to the outer wall of the spacer sleeve 2. The elastic layer 3 is made of nano rubber, with good elasticity and excellent mechanical properties of nano rubber, etc.;

[0028] A buffer layer 4 is fixedly connected to the outer wall of the elastic layer 3. The buffer layer 4 is made of Teflon plastic and has excellent buffering effects. A number of buffer holes 41 are annularly opened on the outer wall of the buffer layer 4;

[0029] A resistance increasing layer 5 is fixedly connected to the outer wall of the buffer layer 4. The resistance increasing layer 5 is made of polyurethane coating. Polyurethane coating is a commonly used material for increasing the friction of an object, and it has excellent properties such as wear resistance, water resistance, ultraviolet resistance, and chemical corrosion resistance;

[0030] A calibration component 6 for guiding the earline is arranged on the outer wall of the spacer sleeve 2. The calibration component 6 includes a limit ring 62. The limit ring 62 is sleeved on the outer wall of the resistance increasing layer 5. An elastic airbag 61 is fixedly connected to the side of the limit ring 62. One end of the elastic airbag 61 far from the limit ring 62 is fixedly connected to the inner wall of the spacer sleeve 2. A spring 63 is arranged inside the elastic airbag 61. The left and right ends of the spring 63 are respectively fixedly connected to the inner wall of the spacer sleeve 2 and the side of the limit ring 62. An air vent hole 65 is opened on the outer wall of the elastic airbag 61, and the air vent hole 65 is communicated with the inside of the elastic airbag 61. The spring 63 is sleeved inside the elastic airbag 61, and the surface of the spring 63 does not contact the inner wall of the elastic airbag 61.

[0031] Working principle and usage process of the utility model: During use, the spacer sleeve 2 provided on the rotating wheel 17 can guide the ear wire. During the guiding process, the resistance increasing layer 5 is provided to increase the friction between the ear wire and the rotating wheel 17. The cooperation of the buffer layer 4 and the elastic layer 3 provided at the bottom of the resistance increasing layer 5 can increase the elasticity between the ear wire and the rotating wheel 17. Two limiting rings 62 are provided to clamp the ear wire in the middle, which can limit and correct the ear wire to prevent the occurrence of side skew of the ear wire during the guiding process.

[0032] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mask machine ear line tightness adjustment device, comprising an adjustment seat (1), a rotating wheel (17), and a baffle (13), wherein the top left and right sides of the adjustment seat (1) are fixedly connected with a support rod (11), a stopper (12) is fixedly installed through the middle and lower part of the support rod (11), an adjustment block (14) is fixedly installed above the stopper (12), a fixed block (15) is provided on the right side below the support rod (11), a connecting rod (16) is provided in the middle of the inner cavity of the fixing block (15), and the end of the connecting rod (16) away from the fixing block (15) and the rotating wheel (17) are fixedly connected to the baffle (13), characterized in that: The inner side of the rotating wheel (17) is fixedly connected to a spacer (2), the outer wall of the spacer (2) is fixedly connected to an elastic layer (3), the outer wall of the elastic layer (3) is fixedly connected to a buffer layer (4), the outer wall of the buffer layer (4) is fixedly connected to a resistance-enhancing layer (5), and the outer wall of the spacer (2) is provided with a correction component (6) for guiding the ear wire.

2. A mask machine ear line tightness adjustment device according to claim 1, characterized in that: The elastic layer (3) is made of nano rubber.

3. A mask machine ear line tightness adjustment device according to claim 1, characterized in that: The buffer layer (4) is made of Teflon plastic.

4. A mask machine ear line tightness adjustment device according to claim 1, characterized in that: The material of the resistance-enhancing layer (5) is made of a polyurethane coating.

5. A mask machine ear line tightness adjustment device according to claim 1, characterized in that: The outer wall of the buffer layer (4) is provided with a plurality of buffer holes (41) in an annular shape.

6. A mask machine ear line tightness adjustment device according to claim 1, characterized in that: The correction component (6) includes a limiting ring (62), the limiting ring (62) is sleeved on the outer wall of the resistance increasing layer (5), the side of the limiting ring (62) is fixedly connected with an elastic airbag (61), the end of the elastic airbag (61) away from the limiting ring (62) is fixedly connected to the inner wall of the spacer (2), and a spring (63) is provided inside the elastic airbag (61), and the left and right ends of the spring (63) are respectively fixedly connected to the inner wall of the spacer (2) and the side of the limiting ring (62).

7. A mask machine ear line tightness adjustment device according to claim 6, characterized in that: The outer wall of the elastic airbag (61) is provided with a vent hole (65), and the vent hole (65) is connected to the interior of the elastic airbag (61).

8. A mask machine ear line tightness adjustment device according to claim 6, characterized in that: The spring (63) is sleeved inside the elastic airbag (61), and the surface of the spring (63) does not contact the inner wall of the elastic airbag (61).

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