Nose clamping strip feeding mechanism of mask machine

Abstract

The utility model discloses a nose clamping strip feeding mechanism of a mask machine, which comprises a main body support, a nose clamping strip wire inserting seat arranged on the main body support, a flanging mechanism, a nose clamping strip wire feeding wheel set and a servo motor for driving the nose clamping strip wire feeding wheel set, a nose clamping strip is inserted into the wire inserting channel through the nose clamping strip wire feeding wheel set, the air cylinder drives the rolling wheel to hit the stress block so as to drive the wire cutting cutter to cut the nose clamping strip to fall into the upper edge of the mask body cloth strip, and then the upper edge and the lower edge of the mask body cloth strip are folded through the edge folding block so that the nose clamping strip can be wrapped in the upper edge of the edge folding block. Automatic feeding and length control of the nose clamping strips are completed through a servo motor, an air cylinder and the like, the nose clamping strips do not need to be cut in advance, procedures are saved, working efficiency is improved, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mask production, in particular to a nose clip strip feeding mechanism of a mask machine. Background Art

[0002] A mask is a sanitary product, generally worn on the mouth and nose to filter the air entering the mouth and nose, so as to prevent harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. It is made of 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 dusty environment, wearing a mask is very effective.

[0003] Among them, the nose clip is an important component structure in most masks. It is set at the bridge of the nose at the upper end of the mask body, so that the nose clip can be pressed to deform when worn, so that the nose clip is clamped at the bridge of the nose, thereby achieving an effective clamping effect and preventing the mask from falling. During the installation process, the nose wire needs to go through the processing steps of feeding, cutting and placement, and then the conveying mechanism is inserted into the upper edge of the mask for welding and sealing. For example, in the Chinese utility model patent "A mask nose wire installation device" (Announcement No. CN217258536U, announcement date 2022.08.23), the nose wire is cut by the cutting cylinder telescopically driving the cutter, and then the cut nose clip is pushed to the top of the base material by pushing the cylinder telescopically driving the push plate. In the above technology, the mask body adopts a longitudinal transmission method, the nose clip moves with the base material, and then the nose clip is covered by the surface material and welded and sealed in the subsequent process. However, in fact, when this transmission method is used, it is difficult to ensure the accuracy of the positioning of the nose clip, especially when the surface material and the base material converge, the nose clip is prone to displacement and affects the feeding accuracy. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A nose clip strip feeding mechanism of a mask machine comprises a main frame, a nose clip strip plugging seat installed on the main frame, a flanging mechanism, a nose clip strip feeding wheel group and a servo motor driving the nose clip strip feeding wheel group, wherein a cloth strip channel through which the mask body cloth strip can pass is formed on the main frame;

[0006] The flanging mechanism includes a flanging bracket fixedly mounted on the main body bracket and a cloth strip pressing piece mounted on the flanging bracket, the front end of the flanging bracket is located at the upper and lower sides of the mask body cloth strip corresponding to the position of the flanging block installed, and the rear end of the flanging bracket is located at the upper and lower sides of the mask body cloth strip corresponding to the position of the folding block installed;

[0007] The nose clip wire plug-in seat comprises a wire plug-in body and a wire cutting knife installed on the main body bracket, a cutting knife clamp block is fixedly installed on the wire plug-in body, a cutting knife clamp block is provided with a cutting knife insertion port for installing the wire cutting knife, the wire cutting knife is arranged in the cutting knife insertion port and a force block elastically connected to the top of the cutting knife clamp block is fixedly installed on the top of the wire cutting knife, a cylinder is fixedly installed on the main body bracket above the wire plug-in body, a telescopic rod of the cylinder is provided with a roller that rotates with it, a wire plug-in channel is formed at the bottom of the wire plug-in body, the nose clip is inserted into the wire plug-in channel through the nose clip wire feeding wheel group, the cylinder drives the roller to hit the force block and then drives the wire cutting knife to cut the nose clip and drop it onto the upper edge of the mask body cloth strip, and then the mask body cloth strip passes through the folding block to fold the upper and lower sides to wrap the nose clip strip in its upper edge.

[0008] Furthermore, the front end of the cloth strip pressing piece is tilted upward.

[0009] Furthermore, a nose clip triangular guide block is provided on the cloth strip pressing piece, located above the cloth strip of the mask body.

[0010] Furthermore, a trapezoidal groove with an upper width and a lower width is formed at the bottom of the wire plug body, the wire plug channel is arranged at the top of the trapezoidal groove, a trapezoidal insertion strip with a shape matching the trapezoidal groove is installed in the trapezoidal groove, and a connecting block fixedly connected to the outer wall of the wire plug body is provided at the tail of the trapezoidal insertion strip, and an incoming wire channel connected to the wire plug channel is provided on the connecting block.

[0011] Furthermore, a limiting column is provided on the cutter clamping block and in the inserting opening, and a long limiting hole corresponding to the limiting column is provided on the wire cutting cutter.

[0012] Furthermore, a spring hole and a return spring installed in the spring hole are provided on the top of the cutter clamping block, and the return spring is connected to the bottom of the force-bearing block.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model has a novel structure, and completes automatic feeding and length control of the nose clip strip through a servo motor, a cylinder, etc., and adopts a lateral transmission method. The nose clip strip is inserted into the upper end of the mask body along the transmission direction of the mask body, and the nose clip strip is wrapped by a flange, so that the nose clip strip is not easy to deviate, thereby improving the feeding accuracy.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is another structural schematic diagram of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the flanging mechanism in the utility model.

[0019] Figure 4 It is a structural schematic diagram of the nose clip wire socket of the utility model. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 A nose clip strip feeding mechanism of a mask machine comprises a main frame 1, a nose clip strip plugging seat 2 installed on the main frame 1, a flanging mechanism 3, a nose clip strip feeding wheel group 4 and a servo motor 5 driving the nose clip strip feeding wheel group 4, and a cloth strip channel through which the mask body cloth strip can pass is formed on the main frame 1;

[0022] The flanging mechanism 3 includes a flanging bracket 31 fixedly mounted on the main bracket 1 and a cloth strip pressing piece 32 mounted on the flanging bracket 31. The front end of the flanging bracket 31 is located at the upper and lower sides of the mask body cloth strip and is provided with a flanging block 33. The rear end of the flanging bracket 31 is located at the upper and lower sides of the mask body cloth strip and is provided with a folding block 34.

[0023] The nose clip wire plug-in seat 2 includes a plug-in body 21 and a wire cutter 22 installed on the main body bracket 1. A cutter clamp block 23 is fixedly installed on the plug-in body 21. The cutter clamp block 23 is provided with a plug-in opening 231 for installing the wire cutter 22. The wire cutter 22 is arranged in the plug-in opening 231 and a force bearing block 221 elastically connected to the top of the cutter clamp block 23 is fixedly installed on the top of the wire cutter 22. A cylinder 2 is fixedly installed on the main body bracket 1 above the plug-in body 21. 4, the telescopic rod of the cylinder 24 is equipped with a roller 241 that rotates with it, and a wire insertion channel 211 is formed at the bottom of the wire insertion body 21. The nose clip is inserted into the wire insertion channel 211 through the nose clip wire feeding wheel group 4. The cylinder 24 drives the roller 241 to hit the force block 221 and then drives the wire cutting knife 22 to cut the nose clip and drop it on the upper side of the mask body cloth strip. Then the mask body cloth strip passes through the folding block 14 to fold the upper and lower sides to wrap the nose clip in its upper side. In addition, if Figure 1 , 2 As shown, an ultrasonic welding roller group 6 and a tension motor 7 for driving the ultrasonic welding roller group 6 to rotate are also installed on the main frame 1 behind the flanging mechanism 3, and a pair of cloth strip pressing rollers 8 that roll with each other are installed in front of the nose clip wire feeding wheel group 4 on the main frame 1. The mask body cloth strip passes through the pair of cloth strip pressing rollers 8 in turn, and the flanging mechanism 3 reaches the ultrasonic welding roller group 6 to weld the upper and lower sides of the mask body cloth strip and tighten the mask body cloth strip through the master-slave relationship between the ultrasonic welding roller group 6 and the cloth strip pressing roller 8. The utility model has a novel structure, and the automatic feeding and length control of the nose clip strip are completed by the servo motor 5, the cylinder 24, etc., and a lateral transmission mode is adopted. The nose clip strip is inserted into the upper end of the mask body along the transmission direction of the mask body, and the nose clip strip is wrapped by the flanging, so that the nose clip strip is not easy to deviate, and the feeding accuracy is improved. The automatic feeding and length control of the nose clip strip can be achieved by setting a spindle encoder on the main shaft of the ultrasonic welding roller group 6. The trigger angle or number of turns is set according to the size requirements of the mask to be produced, and the spindle encoder counts the pulses. When the main shaft of the ultrasonic welding roller group 6 rotates through the set angle or number of turns, the spindle encoder sends a signal to the servo motor 5 and the cylinder 24 to control the feeding of the nose clip strip and the timing of cutting.

[0024] Furthermore, the front end of the cloth strip pressing piece 12 is tilted upward, which facilitates the feeding of the mask body cloth strip and prevents the front end bottom edge of the cloth strip pressing piece 12 from obstructing the feeding of the mask body cloth strip.

[0025] Furthermore, a nose clip triangular guide block 321 is provided on the cloth strip pressing piece 32 at the upper edge of the mask body cloth strip to assist the nose clip strip to be inserted into the upper edge of the mask body cloth strip to avoid piercing the mask body cloth strip.

[0026] Furthermore, a trapezoidal groove 212 with a wide upper part and a low lower part is formed at the bottom of the plug body 21, and a plug channel 211 is arranged at the top of the trapezoidal groove 212. A trapezoidal plug strip 213 matching the shape is installed in the trapezoidal groove 212, and a connecting block 214 fixedly connected to the outer wall of the plug body 21 is arranged at the tail of the trapezoidal plug strip 213, and an inlet channel 215 connected to the plug channel 211 is arranged on the connecting block 214. The plug-in structure is adopted to avoid the structural design of the long hole penetrating the plug body 21, which is convenient for the production and processing of the plug body 21.

[0027] Furthermore, a limiting post 232 is provided on the cutter clamp 23 and in the inserting opening 231, and a long limiting hole 222 corresponding to the limiting post 232 is provided on the wire cutting cutter 22. The cooperation between the limiting post 232 and the limiting hole 222 limits the upward and downward movement of the wire cutting cutter 22, thereby preventing the wire cutting cutter 22 from being disengaged.

[0028] Furthermore, a spring hole 233 and a return spring 234 installed in the spring hole 233 are provided on the top of the cutter clamping block 23 , and the return spring 234 is connected to the bottom of the force bearing block 221 .

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A nose clip strip feeding mechanism of a mask machine, comprising a main frame, a nose clip strip plugging seat mounted on the main frame, a flanging mechanism, a nose clip strip feeding wheel group, and a servo motor driving the nose clip strip feeding wheel group, a cloth strip channel through which the mask body cloth strip can pass is formed on the main frame, characterized in that: The flanging mechanism includes a flanging bracket fixedly mounted on the main body bracket and a cloth strip pressing piece mounted on the flanging bracket, the front end of the flanging bracket is located at the upper and lower sides of the mask body cloth strip corresponding to the position of the flanging block installed, and the rear end of the flanging bracket is located at the upper and lower sides of the mask body cloth strip corresponding to the position of the folding block installed; The nose clip wire plug-in seat comprises a wire plug-in body and a wire cutting knife installed on the main body bracket, a cutting knife clamp block is fixedly installed on the wire plug-in body, a cutting knife clamp block is provided with a cutting knife insertion port for installing the wire cutting knife, the wire cutting knife is arranged in the cutting knife insertion port and a force block elastically connected to the top of the cutting knife clamp block is fixedly installed on the top of the wire cutting knife, a cylinder is fixedly installed on the main body bracket above the wire plug-in body, a telescopic rod of the cylinder is provided with a roller that rotates with it, a wire plug-in channel is formed at the bottom of the wire plug-in body, the nose clip is inserted into the wire plug-in channel through the nose clip wire feeding wheel group, the cylinder drives the roller to hit the force block and then drives the wire cutting knife to cut the nose clip and drop it onto the upper edge of the mask body cloth strip, and then the mask body cloth strip passes through the folding block to fold the upper and lower sides to wrap the nose clip strip in its upper edge.

2. According to claim 1, a nose clip feeding mechanism of a mask machine is characterized in that: The front end of the cloth strip pressing piece is tilted upward.

3. According to the nose clip feeding mechanism of the mask machine according to claim 1, it is characterized in that: A nose clip triangular guide block is arranged on the cloth strip pressing piece and located above the cloth strip of the mask body.

4. According to the nose clip feeding mechanism of the mask machine according to claim 1, it is characterized in that: A trapezoidal groove with a wider upper part and a shorter lower part is formed at the bottom of the wire plug body, and a wire plug channel is arranged at the top of the trapezoidal groove. A trapezoidal insertion strip with a shape matching the trapezoidal groove is installed in the trapezoidal groove. A connecting block fixedly connected to the outer wall of the wire plug body is provided at the tail of the trapezoidal insertion strip, and an incoming wire channel connected to the wire plug channel is provided on the connecting block.

5. According to the nose clip feeding mechanism of the mask machine according to claim 1, it is characterized in that: Limiting posts are arranged on the cutter clamping block and in the cutter inserting opening, and the thread cutting cutter is provided with a long strip limiting hole corresponding to the limiting post.

6. A nose clip strip feeding mechanism for a mask machine according to claim 1 or 5, characterized in that: The top of the cutter clamp block is provided with a spring hole and a return spring installed in the spring hole, and the return spring is connected with the bottom of the force bearing block.

Images