CN212437492U

CN212437492U - Mask nose bridge line cutting mechanism and wire feeding device adopting same

Info

Publication number: CN212437492U
Application number: CN202020683137.2U
Authority: CN
Inventors: 陈毅强
Original assignee: Longhai Andrew Ma Fu Machinery Co Ltd
Current assignee: Longhai Andrew Ma Fu Machinery Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-02
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a mask nose bridge line cutting mechanism and adopt line feeding device of this mechanism belongs to the machinery field, including cutting off sleeve, servo motor, driving gear, drive gear, transfer line and moving cutter, servo motor fixed mounting is on cutting off the outer circumference of sleeve, the driving gear fixed mounting is on the servo motor rotation axis, drive gear with the driving gear meshing, and fixed mounting in transfer line one end with the transfer line is coaxial; the other end of the transmission rod is fixedly provided with the movable cutter. The utility model has the advantages that: the mode of feeding from the side face of the mask cloth is adopted, the movable cutter is controlled to rotate along the central shaft of the transmission rod through the matching of the transmission rod and the movable cutter, the inner space of the sleeve is cut off by covering the edge of the movable cutter in the rotating process, the purpose of cutting off the bridge of the nose is achieved, the cloth conveying space is not occupied, and the line feeding efficiency is high and the precision is high.

Description

Mask nose bridge line cutting mechanism and wire feeding device adopting same

Technical Field

The utility model relates to the field of machinary, particularly, relate to a gauze mask nose bridge line shutdown mechanism and adopt line device that send of this mechanism.

Background

The unavoidable meeting of N95 gauze mask can involve the line of sending and the weldment work of bridge of the nose line in process of production, there are three kinds of situations that weld in the gauze mask inboard, cloth intermediate level or outside in the current N95 gauze mask bridge of the nose line, when the welding was in the cloth intermediate level, the line of sending of bridge of the nose line generally adopted and send the line with the same direction of gauze mask cloth direction of delivery, need form the horn mouth between two gauze masks cloth, just so have enough space to hold and send the line equipment.

The utility model discloses a utility model patent that bulletin number is CN208318346U discloses a full-automatic gauze mask machine nose line group mechanism, including decollator, push plate, wire feeding wheel, nose line cutter, press from both sides tight blade holder, the decollator front side is connected with the wire feeding wheel, and the wire feeding wheel comprises cam decollator, wire feeding friction pulley, wire feeding cam, driven gear, driving gear, wire feeding drive sprocket, extension spring, chain drive route, take-up pulley and main drive chain, and the side of wire feeding wheel is connected with the nose line cutter, and the below of nose line cutter is provided with presss from both sides tight blade holder, and the rear that presss from both sides tight blade holder is provided with push plate. The feeding is carried out from the direction of a cloth bell mouth, the equipment is complex, and the problems of low feeding position precision, low efficiency, easy sliding after feeding and the like exist.

SUMMERY OF THE UTILITY MODEL

To the nose bridge line traditional thread binding putting equipment that exists among the prior art complicacy, and there is pay-off position precision low, inefficiency, the easy scheduling problem that slides that appears behind the pay-off, the utility model discloses a gauze mask nose bridge line shutdown mechanism and adopt the line device that send of this mechanism, adopt the mode of follow gauze mask cloth side feeding, cooperate with moving the cutter through the transfer line, control moves the cutter and rotates along the transfer line center pin, rotatory in-process moves the cutter edge of a knife cover and cuts off sleeve inner space, reaches the purpose that cuts off the nose bridge line, does not occupy the cloth and carries the space, send the line efficient moreover, the precision is high, concrete scheme is as follows:

a mask nose bridge line cutting mechanism comprises a cutting sleeve, a servo motor, a driving gear, a transmission rod and a movable cutter, wherein the servo motor is fixedly installed on the outer circumference of the cutting sleeve; the other end of the transmission rod is fixedly provided with the movable cutter.

Preferably, the movable cutter is in an upward-protruding arc shape, one end of the movable cutter is fixedly mounted on the transmission rod, and the distance between the two ends of the movable cutter is larger than or equal to the diameter of the cutting sleeve.

Preferably, the lower edge of the arc-shaped profile of the movable cutter is provided with a knife edge for cutting off the nasal bridge line.

Preferably, a cavity for accommodating the transmission rod and the transmission gear is formed in the upper side wall of the cutting sleeve, and at least one transmission bearing for supporting the transmission rod is formed in the accommodating cavity.

Preferably, one end of the cutting sleeve, which is close to the fixed cutter mechanism, is provided with a positioning ring for positioning by contacting with the surface of the fixed cutter mechanism.

Preferably, the outer diameter of the retaining ring is greater than the outer diameter of the cutting sleeve.

The utility model also provides a gauze mask nose bridge line send traditional thread binding putting adopts above-mentioned shutdown mechanism.

Has the advantages that:

adopt the utility model discloses technical scheme produces beneficial effect as follows: the mode of feeding from the side face of the mask cloth is adopted, the movable cutter is controlled to rotate along the central shaft of the transmission rod through the matching of the transmission rod and the movable cutter, the inner space of the sleeve is cut off by covering the edge of the movable cutter in the rotating process, the purpose of cutting off the bridge of the nose is achieved, the cloth conveying space is not occupied, and the line feeding efficiency is high and the precision is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a preferred wire feeding device of the present invention;

FIG. 2 is a schematic view of a preferred cutting and discharging mechanism of the present invention;

FIG. 3 is a schematic view of a preferred cutting mechanism of the present invention;

FIG. 4 is a schematic view of a preferred structure of the movable cutter of the present invention;

FIG. 5 is a schematic view of a preferred clamp cylinder of the present invention;

FIG. 6 is a perspective view of the preferred stationary knife mechanism of the present invention;

FIG. 7 is an internal structure view of the preferred stationary knife structure of the present invention;

FIG. 8 is a schematic view of a preferred calibration mechanism of the present invention;

FIG. 9 is a schematic diagram of a preferred horizontal alignment assembly of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the mask nose bridge wire feeding device comprises a frame 1, a wire feeding coil 2, a fixed cutter mechanism 3 and a cutting and discharging mechanism 4, wherein the wire feeding coil 2, the fixed cutter mechanism 3 and the cutting and discharging mechanism 4 are sequentially installed on the frame 1 from front to back, the wire feeding coil 2 and the fixed cutter mechanism 3 are located on one side of mask cloth, and the cutting and discharging mechanism 4 is located on the other side of the mask cloth. The fixed cutter mechanism and the cutting and discharging mechanism are respectively positioned on two sides of the mask cloth, and the fixed cutter mechanism and the cutting and discharging mechanism are directly placed on the surface of the mask cloth after pulling out the nose bridge with the specified length from the fixed cutter mechanism for linear cutting, so that the purpose of feeding the mask cloth is achieved.

Referring to fig. 2-5, the cutting and discharging mechanism 4 comprises a clamping mechanism 41 for drawing the nose bridge line 10 out of the fixed cutter mechanism 3 and a cutting mechanism 42 for cutting off the nose bridge line, the clamping mechanism 41 comprises a clamp barrel 411 for clamping the nose bridge line, the cutting mechanism 42 comprises a cutting sleeve 421, and the cutting sleeve 421 is sleeved outside the clamp barrel 411. The cutting sleeve and the clamp barrel are integrated in the same barrel-shaped structure, the traction and cutting functions are simultaneously realized in a small space, the occupied space is small, and the wire feeding precision is high.

Referring to fig. 3, the cutting mechanism 42 further includes a servo motor 422, a driving gear 423, a transmission gear 424, a transmission rod 425 and a movable cutter 426, the servo motor 422 is fixedly installed on the outer circumference of the cutting sleeve 421, the driving gear 423 is fixedly installed on the rotating shaft of the servo motor 422, the transmission gear 424 is engaged with the driving gear 423 and is fixedly installed at one end of the transmission rod 425 to be coaxial with the transmission rod 425; the other end of the driving rod 425 is fixedly provided with the movable cutter 426. The movable cutter 426 rotates around the transmission rod under the driving of the servo motor to cut off the nose bridge line.

Referring to fig. 4, the movable cutter 426 is in the shape of an upwardly convex arc, and one end thereof is fixedly mounted on the driving rod 425, and the distance between the two ends is greater than or equal to the diameter of the cutting sleeve 421.

The lower edge of the arc-shaped profile of the movable cutter 426 is provided with a knife edge (not shown in the figure) for cutting off the nasal bridge line.

A receiving cavity 427 for receiving the driving rod 425 and the driving gear 424 is formed in an upper side wall of the cutting sleeve 421, and at least one driving bearing 428 for supporting the driving rod is formed in the receiving cavity 427.

A positioning ring 429 for positioning in contact with the surface of the fixed cutter mechanism 3 is formed at one end of the cutting sleeve 421 close to the fixed cutter mechanism 3. One end of the cutting sleeve is provided with the positioning ring, so that the cutting sleeve and the fixed cutter mechanism can be relatively fixed and then start to pull and cut off, and the cutting precision of the cutting and discharging mechanism is improved.

The outer diameter of the retaining ring 429 is greater than the outer diameter of the cutting sleeve 421.

The cutting and discharging mechanism 4 also comprises a horizontal transmission assembly 43 which is used for enabling the cutting sleeve 421 to move back and forth along the axial direction of the cutting sleeve.

Referring to fig. 2, the horizontal transmission assembly 43 includes a horizontal transmission motor 431, a transmission screw rod 432 and a transmission sliding disc 433, the horizontal transmission motor 431 is fixedly installed on the frame 1, the transmission screw rod 32 is disposed on a rotation shaft of the horizontal transmission motor 431 and is coaxial with the rotation shaft of the horizontal transmission motor 431, the transmission sliding disc 433 is sleeved on the transmission screw rod 432, an internal thread matched with the external thread of the transmission screw rod 432 is formed in a sleeving portion, and one end of the cutting sleeve 42, which is far away from the stationary knife mechanism 3, is fixedly installed on the transmission sliding disc 433.

The plane of the disc body of the transmission sliding disc 433 is vertical to the axial direction of the transmission screw rod 432.

A screw rod sleeve 434 is formed on the transmission sliding disc 433 at a position corresponding to the transmission screw rod 432, and an internal thread matched with the external thread of the transmission screw rod 4 is formed on the inner wall of the screw rod sleeve 434.

The cutting and discharging mechanism 4 further comprises a transmission case 44, the transmission case 44 is fixedly mounted on the rack 1, the horizontal transmission assembly 43 is located in the transmission case 44, more than two transmission slide rails 441 parallel to the axis of the transmission screw rod 4 are formed on the transmission case 44, and a sliding block 435 matched with the transmission slide rails 441 is formed on the outer circumference of the transmission slide disc 433 and at a position corresponding to the transmission slide rails 441.

Referring to fig. 5, the clamping mechanism 41 includes a first cylinder 412 for controlling the movement of the clamp cylinder 411 relative to the cutting sleeve 421 along the axial direction of the cutting sleeve 421, the first cylinder 412 is fixedly mounted on the transmission slide plate 433, and the clamp cylinder 411 is fixedly mounted on the telescopic rod of the first cylinder 412.

3 or more clamps 413 for clamping and releasing the nasal bridge line are uniformly mounted on the clamp cylinder 411, and a pressing portion 414 bent toward the central axis direction of the clamp cylinder 411 is formed at one end of each clamp 413 close to the stationary knife mechanism 3.

A clamp rotating rod 415 which can rotate along the axial direction of the clamp 413 is formed on the clamp barrel 411 at a position corresponding to the clamp 413, and the clamp 413 is fixedly installed on the clamp rotating rod 415.

A clamp control assembly 45 for controlling the clamp 413 to clamp or loosen the nasal bridge line is fixedly arranged on the telescopic rod of the first air cylinder 412.

The clamp control assembly 45 comprises a second cylinder 451, a wire rod 452 and a wire rod support plate 453, wherein the second cylinder 451 is fixedly installed on the telescopic rod of the first cylinder 412, the wire rod support plate 453 is fixedly installed on the movable end of the second cylinder 451, one end of the wire rod 452 is fixedly installed on the wire rod support plate 453, and the other end of the wire rod 452 is installed at the end of the clamp 413 far away from the pressing part 414.

The joint of the clamp cylinder 411 and the telescopic rod of the first cylinder 412 is provided with a clamp cylinder connecting plate 416, and a connecting rod through hole 417 for the steel screw rod 452 to pass through is formed on the clamp cylinder connecting plate 416.

The bottom of the cutting sleeve 421 is formed with a strip-shaped opening (not shown) for the nose bridge line to fall to the corresponding position of the mask cloth. The length direction of the strip-shaped opening is parallel to the axial direction of the cutting sleeve.

Referring to fig. 6 and 7, the fixed blade mechanism 3 includes a fixed blade seat 31, a fixed blade 32 mounted on the fixed blade seat 31, and a fixed blade rope guiding tube 33 disposed inside the fixed blade 32, and the fixed blade seat 31 is fixedly mounted on the frame 1.

The fixed knife 32 comprises a fixed knife holder 321 and a cylindrical fixed knife alloy knife head 322 positioned in the fixed knife holder 321, and an annular groove 323 matched with the positioning ring 429 is formed at one end, close to the cutting and discharging mechanism 4, of the cylindrical fixed knife alloy knife head 322. The annular groove is arranged to be matched with the positioning ring, so that the feeding accuracy of the fixed cutter mechanism is improved, and the situation that the position of the nose bridge line clamped by the clamp is wrong is prevented.

The bottom of the annular groove 323 is padded with an annular pad 324. The annular pad is arranged, so that the buffer effect can be achieved in the contact process of the positioning ring and the annular groove.

The length measuring component 331 for detecting the passing length of the nose line in the fixed cutter rope guide pipe 33 is installed on the outer surface of the fixed cutter rope guide pipe 33. The length measurement subassembly can form the calibration with the tensile motion of first cylinder, prevents that the clamp from pulling empty or the slip production in tensile process, has played the effect of reporting to the police and calibration, has improved the precision of cutting off the nose bridge line.

In the implementation operation process, the horizontal transmission motor controls the cutting sleeve to move towards the fixed cutter mechanism, the cutting sleeve stops when a cutting sleeve positioning ring reaches the annular groove of the fixed cutter mechanism, meanwhile, the first cylinder controls the clamp to move towards the annular groove of the fixed cutter mechanism, when the clamp reaches the position of the annular groove of the fixed cutter mechanism, the second cylinder controls the clamp to clamp and clamp the nose bridge line, the first cylinder controls the clamp to move towards the direction away from the annular groove of the fixed cutter mechanism, when the specified position is reached, the servo motor controls the brake cutter to cut off the nose bridge line, meanwhile, the horizontal transmission motor controls the cutting sleeve to reach the specified position above the gauze mask cloth, the second cylinder controls the clamp to loosen the nose bridge line, the nose bridge line falls down from the strip-shaped opening.

Decide blade holder 31 and be the style of calligraphy of falling T, install at its bottom both ends frame 1 top, decide blade holder 31 positive centre and open there is square mouth 311, decide sword 32 and install inside square mouth 311.

The fixed cutter holder 321 comprises a main body section 325 and a cutter head control section 326, wherein the main body section 325 is cylindrical, the outer side of the cylinder is fixed on the inner side of the square opening 311, the cutter head control section 326 is similar to a hemisphere, and the cylindrical fixed cutter alloy cutter head 322 is arranged in the cutter head control section 326.

The two ends of the bottom of the fixed cutter seat 31 are provided with runway-shaped elongated slots 312, and fixed cutter seat fixing bolts 313 are connected with the upper part of the rack 1 through the runway-shaped elongated slots 312. An anti-seismic gasket 314 is arranged at the contact position of the bottom of the fixed cutter seat 31 and the rack 1.

A correcting mechanism 5 for accurately correcting the nose bridge line and the inlet of the fixed cutter mechanism 3 is also arranged between the coil feeding mechanism 2 and the fixed cutter mechanism 3. An infrared generator 332 for emitting infrared rays to the calibration mechanism 5 is mounted on the outer surface of the stationary cutter rope guide 33.

Referring to fig. 8 and 9, an infrared sensing plate 51 for receiving infrared rays emitted from the infrared generator 332 is mounted on the calibration mechanism 5 near the fixed cutter mechanism 3.

The proofreading mechanism 5 comprises a vertical proofreading assembly 52, the vertical proofreading assembly 52 comprises a vertical proofreading cylinder 521, an upper proofreading wheel 522, a lower proofreading wheel 523 and a proofreading wheel mounting frame 524, the proofreading wheel mounting frame is used for mounting the upper proofreading wheel 522 and the lower proofreading wheel 523 on an expansion rod of the vertical proofreading cylinder 521, and the vertical proofreading cylinder 521 is fixedly mounted on the rack 1.

The pair of wheel mounting frames 524 is formed with a horizontal aligning member 53 for performing horizontal alignment on a side thereof adjacent to the infrared sensing panel 51.

Horizontal proofreading subassembly 53 includes horizontal proofreading cylinder 531 and horizontal proofreading body 532, horizontal proofreading cylinder 531 fixed mounting be in on the proofreading wheel mounting bracket 524, horizontal proofreading body 532 is installed on the telescopic link of horizontal proofreading cylinder 531, infrared ray tablet 51 fixed mounting be in horizontal proofreading body 532 is close to stationary knife mechanism 3 one end.

The horizontal calibration slide rail 54 is installed on one side, close to the infrared sensing plate 51, of the calibration wheel mounting frame 524, and the horizontal calibration slide block 55 matched with the horizontal calibration slide rail 54 is installed on the horizontal calibration pipe body 532. One end of the horizontal correction pipe body, which is close to the correction wheel mounting frame, is provided with a smooth chamfer, so that the nose bridge line is prevented from being worn due to contact with the corner of the end part of the horizontal correction pipe body.

The horizontal aligning slide rail 54 is located above the mounting frame through hole 525 through which the nose bridge line passes is formed on the aligning wheel mounting 524. Smooth chamfers are formed at two ends of the through hole of the mounting frame, so that the nose bridge line is prevented from being worn due to contact with corners of the through hole of the mounting frame. A guide wheel 6 for guiding is arranged between the wire feeding coil 2 and the correcting mechanism 5.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mask nose bridge line cutting mechanism is characterized by comprising a cutting sleeve, a servo motor, a driving gear, a transmission rod and a movable cutter, wherein the servo motor is fixedly arranged on the outer circumference of the cutting sleeve; the other end of the transmission rod is fixedly provided with the movable cutter.

2. The mask nasal bridge line severing mechanism of claim 1, wherein said movable knife is in the shape of an upwardly convex arc with one end fixedly mounted to said actuator rod and the distance between the ends is greater than or equal to the diameter of said severing sleeve.

3. The mask nasal bridge line severing mechanism of claim 2, wherein said moving blade arcuate profile has a knife edge at a lower edge thereof for severing the nasal bridge line.

4. The mask nasal bridge line severing mechanism of claim 3, wherein said severing sleeve has an upper sidewall with a cavity for receiving said drive rod and said drive gear, said cavity having at least one drive bearing formed therein for supporting said drive rod.

5. The mask nasal bridge line severing mechanism of claim 4, wherein said severing sleeve is formed with a positioning ring adjacent to an end of said stationary knife mechanism for positioning in surface contact with said stationary knife mechanism.

6. The mask nasal bridge line severing mechanism of claim 5, wherein an outer diameter of said positioning ring is greater than an outer diameter of said severing sleeve.

7. A mask nasal bridge line delivery device, wherein the severing mechanism of any one of claims 1 to 6 is employed.