A nose bridge bong

Abstract

The present invention provides a nose bridge hopper. The hopper body of the nose bridge hopper includes a left part of the hopper body and a right part of the hopper body, and the two are of a split structure. The left part of the hopper body includes a U-shaped hole and a left cavity of the hopper body. The side surface of the left part of the hopper body is an inclined surface, and the U-shaped hole is connected to the inclined surface. The other side of the left part of the hopper body is the left cavity of the hopper body. The side surface of the right part of the hopper body is a smooth arc surface, and the other side is the right cavity of the hopper body. The left cavity of the hopper body and the right cavity of the hopper body form the hopper cavity of the nose bridge hopper, and the cavity of the hopper is inclined downward with respect to the bottom surface. The hopper cavity includes a through hole at the front end and a U-shaped groove at the rear end. The overall size of the hopper cavity of the nose bridge hopper gradually decreases from the front end to the rear end of the hopper cavity. By designing the nose bridge hopper into a split structure, the present invention can effectively alleviate the instability of the pendulum line and the coiling line before the nose bridge hopper, improve the bending problem of the nose bridge strip at the nose bridge hopper, thereby solving the blockage problem of the nose bridge hopper, reducing the material loss of the mask machine, and improving the production efficiency of the flat mask machine.

Description

Technical Field

[0001] The present invention belongs to the field of machinery, and particularly relates to a nose bridge hopper for a flat mask machine. Background Art

[0002] A mask is a sanitary product, generally referring to a product 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. Wearing a mask is very useful during the epidemic of respiratory infectious diseases and when working in a polluted environment such as dust. A flat non-woven mask mainly consists of an upper non-woven fabric, a middle melt-blown non-woven fabric, a lower non-woven fabric, a nose bridge strip and ear straps. The nose bridge strip mainly consists of a core and a protective layer. The core material of the nose bridge strip is a single solid galvanized low-carbon steel wire. Due to its low material strength and hardness, the nose bridge strip has the characteristic of being easily bent. Therefore, during the production process of a flat non-woven mask, the nose bridge strip is prone to bending at the nose bridge hopper, resulting in blockage of the nose bridge hopper and further causing the phenomenon of a flat mask without a nose bridge strip.

[0003] The shape of the body of the commonly existing nose bridge hopper on the market is oblate, with welding marks both inside and outside, and the surface is not smooth; the elliptical size at the rear end of the cavity of the nose bridge hopper is much larger than the size of the nose bridge strip. Since the commonly existing nose bridge hopper on the market is made of stainless steel plate and has a light weight, there is vibration of the nose bridge hopper during the operation of the mask machine; the shape is elliptical, which can cover the running track of the nose bridge strip. During the production process of a flat mask machine using the commonly existing nose bridge hopper on the market, due to the welding marks in the cavity of the nose bridge hopper and the non-smooth surface, the nose bridge strip will be bent due to the welding marks when passing through, resulting in unsmooth entry and exit of the nose bridge strip from the nose bridge hopper, and further causing the problem of blockage of the nose bridge hopper. Since the commonly existing nose bridge hopper on the market has a light weight and the elliptical size at the outlet is larger than the width of the nose bridge strip, it is also easy to cause instability of the pendulum line and coiling line before the nose bridge hopper, resulting in unsmooth entry and exit of the nose bridge strip from the nose bridge hopper, and further causing the problem of blockage of the nose bridge hopper. Once the nose bridge hopper is blocked, it is necessary to stop the machine and disassemble it for cleaning, resulting in a reduction in the production efficiency of the mask machine and waste of materials. Summary of the Invention

[0004] The present invention provides a nose bridge hopper to effectively solve the instability of the pendulum line and coiling line of the nose bridge strip before the nose bridge hopper and solve the problem of blockage of the nose bridge hopper.

[0005] The technical solution of the present invention is realized as follows: An over-the-bridge hopper, the hopper body of the over-the-bridge hopper includes a left part of the hopper body and a right part of the hopper body, and the two are of a split structure. The left part of the hopper body includes a U-shaped hole and a left cavity of the hopper body. The side of the left part of the hopper body is an inclined surface, and the U-shaped hole is connected to the inclined surface. The other side of the left part of the hopper body is the left cavity of the hopper body. The side of the right part of the hopper body is a smooth arc surface, and the other side is the right cavity of the hopper body. The left cavity and the right cavity of the hopper body form the hopper cavity of the over-the-bridge hopper, and its cavity is inclined downward with respect to the bottom surface. The hopper cavity includes a through hole at the front end and a U-shaped groove at the rear end;

[0006] Preferably, the hopper cavity of the over-the-bridge hopper is divided into a front end of the hopper cavity, a middle end of the hopper cavity, and a rear end of the hopper cavity. The cavity at the front end of the hopper cavity is in the shape of a flared mouth that contracts inward in the width direction, and its width is greater than the width of the nose strip. The width of the rear end of the hopper cavity is the minimum width of the entire hopper cavity, and its size is 0.5-1 mm greater than the width of the nose strip;

[0007] Preferably, a positioning groove is provided on the left part of the hopper body, and a positioning block is provided on the right part of the hopper body. The positioning block is located in the positioning groove, and the left part and the right part of the hopper body are connected together by a locking member;

[0008] Preferably, each edge of the hopper body of the over-the-bridge hopper has a rounded corner;

[0009] Preferably, the overall width dimension of the assembled over-the-bridge hopper gradually decreases from the front end to the rear end of the hopper cavity.

[0010] The beneficial effects of the present invention are as follows: The present invention designs the over-the-bridge hopper into a split structure, which can effectively alleviate the instability of the wire laying and coiling before the over-the-bridge hopper, improve the bending problem of the nose strip at the over-the-bridge hopper, thereby solving the blockage problem of the over-the-bridge hopper, reducing the material loss of the mask machine, and improving the production efficiency of the flat mask machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the overall structural schematic diagram of the present invention;

[0012] Figure 2 is the front view of the present invention;

[0013] Figure 3 is the top view of the present invention;

[0014] Figure 4 is the left view of the present invention;

[0015] Figure 5 is the Figure 3 sectional view taken along the line A-A of the present invention;

[0016] Figure 6 is the schematic diagram of the left part of the hopper body of the present invention;

[0017] Figure 7Schematic diagram of the right part of the bucket body of the present invention.

[0018] Part description: 1. Left part of the bucket body, 2. Right part of the bucket body, 3. Locking part, 4. U-shaped hole, 5. Left cavity of the bucket body, 6. Positioning groove, 7. Right cavity of the bucket body, 8. Positioning block, 9. Front end of the bucket cavity, 10. Middle end of the bucket cavity, 11. Rear end of the bucket cavity, 12. Arc surface, 13. Inclined surface, 14. Through hole, 15. U-shaped groove. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] Refer to the attached Figure 1-7 , A nose bridge bucket, its structure is a split structure, including the left part 1 of the bucket body and the right part 2 of the bucket body. There is a positioning groove 6 on the left part 1 of the bucket body, and a positioning block 8 on the right part 2 of the bucket body, which can ensure that there is no misalignment or movement during the assembly process; there are 2 threaded holes at the bottom of the left part 1 of the bucket body, and 2 through holes at the bottom of the right part 2 of the bucket body. The left part 1 of the bucket body is connected to the right part 2 of the bucket body through two locking parts 3. Therefore, the left cavity 5 of the bucket body on the left part 1 of the bucket body and the right cavity 7 of the bucket body on the right part 2 of the bucket body form the bucket cavity of the nose bridge bucket. The inner surface of the assembled cavity is smooth without unevenness. The overall width dimension of the assembled nose bridge bucket gradually decreases from the front end to the rear end of the bucket cavity.

[0022] The over-bridge nose clip holder is fixed on the mask machine fixing strip through the U-shaped hole 4 and bolts. Each edge of the body of the over-bridge nose clip holder has a rounded corner to ensure that the non-woven fabric is not scratched and to ensure the safety of the operator; on the right part 2 of the body, there is a curved surface 12, the surface of which is smooth and has no sharp edges, the purpose of which is to allow the non-woven fabric to pass through smoothly without scratching the non-woven fabric. The movement of the nose strip in and out of the cavity of the over-bridge nose clip holder can be divided into three parts: the front end 9 of the cavity, the middle part 10 of the cavity, and the rear end 11 of the cavity. The front end 9 of the cavity is the entrance where the nose strip enters the over-bridge nose clip holder. The surface where the front end 6 of the cavity is located is an inclined surface to ensure that the nose strip can smoothly enter the front end 9 of the cavity. The front end 9 of the cavity is in the shape of a flared mouth that contracts inward in the width direction. The width dimension of the front end 9 of the cavity is relatively large, which is convenient for the nose strip to enter; the width dimension of the cavity gradually decreases from the front end 9 to the rear end 11, and its minimum width dimension is larger than the width dimension of the nose strip; the rear end 11 of the cavity is the exit where the nose strip enters and exits the over-bridge nose clip holder. The rear end 11 of the cavity is an exposed U-shaped groove 15. Here, it can be seen whether the over-bridge nose clip holder is blocked or missing. Once blocked, it can be cleared here, reducing the disassembly time and improving the mask production efficiency.

[0023] During the mask production process, the movement trajectory of the nose strip at the over-bridge nose clip holder: The nose strip enters the middle part 10 of the cavity of the over-bridge nose clip holder from the front end 9 of the cavity of the over-bridge nose clip holder, and reaches the rear end 11 of the cavity of the over-bridge nose clip holder along the slope of the cavity. Whether the nose strip is blocked can be seen in the U-shaped groove 15 at the rear end 11 of the cavity of the over-bridge nose clip holder.

[0024] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A bridge-over nose bridge cup, comprising a bridge-over nose bridge cup body, a cavity is arranged inside the body, and the cavity is divided into a front end (9) of the cavity, a middle end (10) of the cavity and a rear end (11) of the cavity. The cavity at the front end (9) of the cavity is in the shape of a flaring mouth that contracts inward in the width direction, and its width is greater than the width of the nose bridge strip. The width of the rear end (11) of the cavity is the minimum width of the entire cavity, and its size is 0.5-1 mm larger than the width of the nose bridge strip. It is characterized in that The nose bridge passing hopper body includes a left hopper body part (1) and a right hopper body part (2), which are of a split structure. A positioning groove (6) is provided on the left hopper body part (1), and a positioning block (8) is provided on the right hopper body part (2). The positioning block (8) is located within the positioning groove (6). The left hopper body part (1) and the right hopper body part (2) are connected together by a locking member (3). The left hopper body part (1) includes a U-shaped hole (4) and a left hopper body cavity (5). The side of the left hopper body part (1) is an inclined surface (13), and the U-shaped hole (4) is connected to the inclined surface (13). The other side of the left hopper body part (1) is the left hopper body cavity (5). The side of the right hopper body part (2) is a smooth arc surface (12), and the other side is a right hopper body cavity (7). The left hopper body cavity (5) and the right hopper body cavity (7) form the hopper cavity of the nose bridge passing hopper. Its cavity is inclined downward with respect to the bottom surface. The hopper cavity includes a through hole (14) at the front end and a U-shaped groove (15) at the rear end. The rear end (11) of the hopper cavity is located at the exit where the nose bridge strip enters and exits the nose bridge passing hopper. The rear end (11) of the hopper cavity is an exposed U-shaped groove (15). Each edge of the nose bridge passing hopper body has a rounded corner. The overall width dimension of the assembled nose bridge passing hopper gradually decreases from the front end to the rear end of the hopper cavity.

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