Positioning and cutting device for mask machine

Abstract

The invention discloses a positioning and cutting device for a mask machine, and relates to the technical field of mask processing equipment, the positioning and cutting device comprises a machine base and a cutting knife body used for cutting a mask nose bridge strip; a conveying channel for feeding nose bridge strips is formed in the upper surface of one side of the machine base, and a downwards-sunken working area is arranged on the other side of the machine base. According to the positioning and cutting device for the mask machine, a cutting knife body capable of rotating in a reciprocating mode is arranged to flatly cut off a nose bridge strip, when the rotating cutting knife body drives a guide wheel in the middle of a movable base to extrude and abut against one side of an ejection block, a trimming blade can press arc-shaped marks on the two ends of the nose bridge strip, and when an inclined block on the inner wall of the trimming blade extrudes the edge of the inner wall of a reserved channel, the trimming blade can cut off the nose bridge strip. The rotary trimming blade can deflect outwards and extrude and strip trimming objects adhered to the two ends of the nose bridge strip, so that the nose bridge strip which is preliminarily flattened and cut off can be rounded and cut in the rotary conveying process, and it is ensured that the two ends of the nose bridge strip can be positioned and cut into a nose bridge strip finished product conforming to the standard arc shape.

Description

Technical Field

[0001] The present invention relates to the technical field of mask processing equipment, and specifically relates to a positioning and cutting device for a mask machine. Background Art

[0002] A mask is a sanitary 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 or droplets from entering and leaving the mouth and nose of the wearer. The mask has a certain filtering effect on the air entering the lungs. When producing a mask, a nose strip needs to be set on the mask surface layer to achieve the sealing and fixation at the nasal bridge of the face, ensuring stable sealing and adhesion between the mask and the nasal bridge.

[0003] In the prior art, a rotatable cutting knife is used to perform fixed-length cutting on a specified position of the nose strip to meet the production standards of masks. However, the existing nose strip cutting devices generally can only cut the nose strip horizontally, which causes sharp edges at the end corners of the cut nose strip, and there is a hidden danger of scratching the skin when using the nose strip. Therefore, it is difficult to quickly produce a finished nose strip with rounded protection by the conventional cutting of the nose strip. Summary of the Invention

[0004] The purpose of the present invention is to provide a positioning and cutting device for a mask machine to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A positioning and cutting device for a mask machine, including a machine base and a cutting knife body for cutting the nose strip of the mask;

[0006] A conveying channel for feeding the nose strip is opened on the upper surface of one side of the machine base. A working area that is recessed downward is provided on the other side of the machine base. Guide blocks are symmetrically installed at one end of the conveying channel close to the working area. A cutting knife body is connected through a rotating shaft in the working area. A strip-shaped blanking opening is penetrated through the surface of the working area. A top block is installed on the upper edge of the working area close to the blanking opening;

[0007] A fixed-length channel for positioning and storing the nose strip is opened downward inside the cutting knife body. A cutting edge for cutting the nose strip is opened on one side edge of the fixed-length channel. A tension spring is connected between the upper side of the cutting knife body and the upper side of the machine base. An edge trimming mechanism for trimming the end of the nose strip is provided on one side of the cutting knife body. The edge trimming mechanism includes a groove opened on one side of the cutting knife body. A moving seat is slidably connected inside the groove. Both ends of the moving seat are rotatably connected with trimming blades through movable shafts, and torsion springs that are respectively in contact with the moving seat and the trimming blades are sleeved on the movable shafts. An inclined block is integrally formed on the inner wall edge of the trimming blade. A guide wheel is arranged in the middle of the moving seat.

[0008] Preferably, magnetic attraction blocks for magnetically attracting the cutting tool body are installed at both ends of the cutting tool body close to the outer edge of the groove;

[0009] Reserved channels for the trimming blade to move are communicated and opened between both ends of the groove and the fixed-length channel.

[0010] Preferably, sliding grooves are formed on the upper and lower surfaces of the moving seat. One side of the middle part of the moving seat is welded with a fixing plate. A sliding rod member penetrates and slides through the middle part of the fixing plate. A return spring is fixed between one end of the sliding rod member and the fixing plate. The other end of the sliding rod member is fixed with a collar for docking with the guide wheel, and both ends of the guide wheel slide along the sliding groove.

[0011] Preferably, a backing plate abuting against the blanking port is installed on the upper surface of the working area, and an extension strip is arranged at the edge of the backing plate close to the blanking port.

[0012] Preferably, a horizontal cavity for fitting with the backing plate is formed on the lower side of the cutting tool body, and an avoidance slideway aligned with the extension strip is formed on the lower side of the cutting tool body close to the groove.

[0013] Preferably, a vertical plate for installation on the mask machine equipment is further arranged on one side of the machine base, and a belt conveyor is installed below the vertical plate close to the blanking port.

[0014] Preferably, a driving gear is arranged on the rotating shaft at one end of the cutting tool body. A second motor is installed on one side of the vertical plate through a detachable support, and a sector gear is installed at the bottom output end of the second motor.

[0015] Preferably, inner cavities are formed on both sides of the conveying channel, and a conveying mechanism is arranged in the inner cavities. The conveying mechanism includes conveying rollers movably connected in the inner cavities. Tooth discs are fixed at the upper ends of the conveying rollers. Adjacent two of the conveying rollers on both sides of the conveying channel are meshed and driven through the tooth discs.

[0016] Preferably, one of the conveying rollers is connected with a first motor at the lower end, and the first motor is installed on one side of the vertical plate. Synchronous wheels are connected to the tops of adjacent two tooth discs on the same side of the conveying channel, and a synchronous belt is sleeved between the two synchronous wheels. The synchronous wheels and the synchronous belt form a synchronous component for driving the adjacent two tooth discs on the same side to rotate in the same direction.

[0017] Preferably, an induction plate is fixed on the upper side wall of the cutting tool body, a support is fixed on the upper side wall of the machine base close to the induction plate, and a proximity switch is installed in the middle of the support.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In this mask machine positioning and cutting device, a reciprocally rotatable cutting blade body is provided to smoothly cut off the nose bridge strip. When the rotating cutting blade body drives the guide wheel in the middle of the moving seat to squeeze and abut against one side of the top block, the trimming blade will press arc-shaped imprints on both ends of the nose bridge strip. When the inclined block on the inner wall of the trimming blade squeezes against the edge of the inner wall of the reserved channel, the rotatable trimming blade will deflect outward and squeeze to peel off the trimming materials adhered to both ends of the nose bridge strip, so that the preliminarily smoothly cut nose bridge strip can be rounded and cut during the process of rotating and conveying, ensuring that both ends of the nose bridge strip can be positioned and cut into nose bridge strip finished products conforming to the standard arc shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic three-dimensional structure diagram of the positioning and cutting device for aligning the fixed-length channel of the cutting blade body of the present invention with the conveying channel;

[0020] Figure 2 Schematic three-dimensional structure diagram of the positioning and cutting device for the cutting blade body of the present invention to cut the nose bridge strip;

[0021] Figure 3 Schematic three-dimensional structure diagram of the positioning and cutting device for aligning the fixed-length channel of the cutting blade body of the present invention with the blanking port;

[0022] Figure 4 Schematic three-dimensional structure diagram of the positioning and cutting device from the bottom perspective of the present invention;

[0023] Figure 5 Schematic first three-dimensional exploded structure diagram of the machine base of the present invention;

[0024] Figure 6 Schematic second three-dimensional exploded structure diagram of the machine base of the present invention;

[0025] Figure 7 Schematic three-dimensional structure diagram of the cutting blade body of the present invention rotating away from the backing plate;

[0026] Figure 8 Schematic three-dimensional sectional structure diagram of the cutting blade body and the edge trimming mechanism of the present invention;

[0027] Figure 9 Schematic three-dimensional structure diagram of the fixed-length channel of the cutting blade body of the present invention away from the backing plate extension strip;

[0028] Figure 10 Schematic three-dimensional exploded structure diagram of the cutting blade body and the edge trimming mechanism of the present invention;

[0029] Figure 11 Schematic first three-dimensional structure diagram of the connection between the moving seat and the trimming blade of the present invention;

[0030] Figure 12 Schematic second three-dimensional structure diagram of the connection between the moving seat and the trimming blade of the present invention.

[0031] In the figure: 1. Machine base; 101. Conveyor channel; 102. Working area; 1021. Pad; 1022. Blanking opening; 1023. Top block; 103. Guide block; 2. Conveying mechanism; 201. Conveyor roller; 202. Tooth disc; 203. First motor; 204. Synchronization component; 3. Cutting tool body; 301. Fixed-length channel; 302. Cutting edge; 303. Tension spring; 304. Induction plate; 4. Edge trimming mechanism; 401. Groove; 402. Moving seat; 403. Magnetic attraction block; 404. Trimming edge; 405. Slide groove; 406. Fixed plate; 407. Slide rod member; 408. Guide wheel; 409. Return spring; 410. Inclined block; 411. Torsion spring; 5. Driving gear; 6. Vertical plate; 601. Belt conveyor; 7. Second motor; 8. Sector gear; 9. Proximity switch. Specific implementation mode

[0032] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-3 、 Figure 5 and Figure 6 The present invention provides a technical solution: a positioning cutting device for a mask machine, including a machine base 1 and a cutting tool body 3 for cutting the nose bridge strip of a mask; a conveyor channel 101 for feeding the nose bridge strip is opened on the upper surface of one side of the machine base 1, a downwardly concave working area 102 is provided on the other side of the machine base 1, and guide blocks 103 are symmetrically installed at one end of the conveyor channel 101 close to the working area 102.

[0034] When the positioning cutting device is in use, when the nose bridge strip raw material is sent along the conveyor channel 101 to the fixed-length channel 301 inside the cutting tool body 3, the nose bridge strip raw material is centered and guided by two symmetrically installed guide blocks 103.

[0035] Please refer to Figures 1-10 In the working area 102, a cutting tool body 3 is connected by a rotating shaft, a strip-shaped blanking opening 1022 is penetrated through the surface of the working area 102, and a top block 1023 is installed on the upper edge of the working area 102 close to the blanking opening 1022;

[0036] Inside the cutting tool body 3, a fixed-length channel 301 for positioning and storing the nose bridge strip is opened downward, and a cutting edge 302 for cutting the nose bridge strip is opened on one side edge of the fixed-length channel 301.

[0037] In specific implementation, when the cutting knife body 3 is driven to rotate forward, the cutting knife body 3 can drive the fixed-length channel 301 and the guide block 103 to stagger with each other, so that the bridge of the nose strip is positioned and cut by the cutting edge 302 of the cutting knife body 3. At the same time, the bridge of the nose strip can be cut smoothly by the mutual compression of the cutting edge 302 and the guide block 103. When the cutting knife body 3 cuts off the bridge of the nose strip and completes the angle deflection, the edge trimming mechanism 4 on one side of the cutting knife body 3 will approach the top block 1023 at the edge of the working area 102.

[0038] See also Figures 1-3 , Figure 5 , Figures 7-12 The upper side of the cutting knife body 3 is connected to the upper side of the machine base 1 with a tension spring 303, and one side of the cutting knife body 3 is provided with an edge trimming mechanism 4 for trimming the end of the nose bridge strip, and the edge trimming mechanism 4 includes a groove 401 opened on one side of the cutting knife body 3, and a movable seat 402 is slidably connected inside the groove 401, and the two ends of the movable seat 402 are rotatably connected with the trimming blade 404 through a movable shaft, and the movable shaft is sleeved with a torsion spring 411 that abuts the movable seat 402 and the trimming blade 404 respectively; the two ends of the groove 401 are connected to the fixed-length channel 301, and a reserved channel for the movement of the trimming blade 404 is opened.

[0039] In specific implementation, when the guide wheel 408 in the middle of the movable seat 402 presses against one side of the top block 1023, the continuously rotating cutting blade 3 will cause the movable seat 402 and the guide wheel 408 to be squeezed into the groove 401 by the top block 1023. At this time, the movable seat 402 will drive the trimming blades 404 at both ends to pass through the reserved channel and squeeze the two ends of the nose bridge strip, thereby pressing arc-shaped marks on the two ends of the nose bridge strip.

[0040] See also Figures 7-12 , an inclined block 410 is integrally formed on the inner wall edge of the trimming blade 404, and a guide wheel 408 is provided in the middle of the movable seat 402;

[0041] The upper and lower surfaces of the movable seat 402 are provided with a slide groove 405, a fixed plate 406 is welded to one side of the middle of the movable seat 402, a slide bar 407 is slidably penetrated in the middle of the fixed plate 406, a return spring 409 is fixed between one end of the slide bar 407 and the fixed plate 406, a collar that docks with a guide wheel 408 is fixed to the other end of the slide bar 407, and both ends of the guide wheel 408 slide along the slide groove 405;

[0042] Magnetic blocks 403 for magnetically attracting the cutting blade 3 are installed at both ends of the cutting blade 3 close to the outer edge of the groove 401 .

[0043] In specific implementation, when the cutting blade body 3 is continuously rotating forward, the movable seat 402 will be continuously pressed into the groove 401, and when the inclined block 410 on the inner wall of the trimming blade 404 is squeezed with the inner wall edge of the reserved channel at both ends of the groove 401, the trimming blade 404 will rotate around the movable axis at the end of the movable seat 402 and squeeze the torsion spring 411. At this time, the trimming blade 404 rotating away from the movable seat 402 will deflect outward while continuously squeezing the nose bridge strip, and can squeeze and peel off the trimming material adhered to the two ends of the nose bridge strip, so that the nose bridge strip that has been initially cut flat can be rounded and cut during the rotating conveying process, ensuring that the two ends of the nose bridge strip can be positioned and cut into a finished nose bridge strip that meets the standard arc shape;

[0044] When the cutting blade body 3 rotates forward but does not reach the limit stroke angle and the moving seat 402 moves to the maximum stroke along the groove 401, the guide wheel 408 in the middle of the moving seat 402 is squeezed by the top block 1023 to slide along the slide groove 405, so that the guide wheel 408 drives the slide bar 407 to move linearly along the fixed plate 406 when sliding, and the slide bar 407 stretches the return spring 409;

[0045] When the cutting knife body 3 rotates forward but does not reach the limit travel angle and the guide wheel 408 rolls to avoid the side of the top block 1023, the magnetic attraction of the magnetic block 403 on the movable seat 402 will cause the movable seat 402 and the trimming blade 404 to slide outward along the groove 401 on one side of the cutting knife body 3 to reset, so the movable seat 402 will pull the trimming blade 404 away from the fixed-length channel 301. When the cutting knife body 3 rotates forward to the limit travel angle, the fixed-length channel 301 of the cutting knife body 3 will be aligned with the blanking port 1022 below. At this time, the unrestricted finished nose bridge strip and the peeled trimmed material will be discharged downward along the blanking port 1022.

[0046] See also Figures 1-3 as well as Figures 5-10 The outer edge of the cutting knife body 3 away from the rotating axis is an arc-shaped structure, and the outer edge of the cutting knife body 3 away from the rotating axis is also provided with an arc-shaped extension portion for blocking the feeding of the bridge of the nose strip. When the cutting knife body 3 is from cutting the bridge of the nose strip to discharging the bridge of the nose strip to the blanking port 1022, the arc-shaped extension portion of the outer edge of the cutting knife body 3 will block one side of the guide block 103, and the cutting end of the bridge of the nose strip raw material can be blocked and protected by the arc-shaped extension portion.

[0047] See also Figure 5 , Figure 7 and Figure 9, a backing plate 1021 is installed on the upper surface of the working area 102 and abuts against the blanking port 1022. An extension strip is provided at the edge of the backing plate 1021 close to the blanking port 1022. When the cutting blade body 3 drives the nose strip to rotate and move through the fixed-length channel 301, the combination of the backing plate 1021 and the extension strip can support the bottom wall of the nose strip, preventing the nose strip from moving up and down in the fixed-length channel 301, so as to play a role in preventing deviation when the trimming blade 404 trims the two ends of the nose strip into a round shape.

[0048] Please refer to Figure 7 , Figure 9 , Figure 10 , a horizontal cavity that fits the backing plate 1021 is provided on the lower side of the cutting blade body 3, and an avoidance slideway aligned with the extension strip is provided on the lower side of the cutting blade body 3 close to the groove 401. An avoidance slideway is provided below the cutting blade body 3, so that the cutting blade body 3 can have a dislocation slide with the backing plate 1021 when rotating, and mechanical interference between the cutting blade body 3 and the backing plate 1021 will not occur.

[0049] Please refer to Figures 1-4 , a vertical plate 6 for installation on a mask machine device is further provided on one side of the machine base 1, and a belt conveyor 601 is installed below the vertical plate 6 close to the blanking port 1022.

[0050] During specific implementation, the vertical plate 6 on one side of the machine base 1 is installed on the mask machine device. When the fixed-length channel 301 of the cutting blade body 3 is vertically aligned with the blanking port 1022, the nose strip that is fixed-length cut and edge-trimmed in the fixed-length channel 301 will fall from the blanking port 1022 onto the belt conveyor 601 for automatic conveying.

[0051] Please refer to Figures 1-9 , a driving gear 5 is provided on the rotating shaft at one end of the cutting blade body 3, a second motor 7 is installed on one side of the vertical plate 6 through a detachable support, and a sector gear 8 is installed at the bottom output end of the second motor 7.

[0052] During specific implementation, when the second motor 7 rotates forward, the second motor 7 will drive the sector gear 8 to rotate. When the teeth on the sector gear 8 mesh with the driving gear 5, the cutting blade body 3 will be driven to rotate around the rotating shaft;

[0053] When the cutting blade body 3 rotates towards the blanking port 1022, the avoidance slideway on the lower side of the cutting blade body 3 will be offset from the backing plate 1021, and the bottom of the nose strip will slide along the backing plate 1021 and the extension strip; when the teeth on the sector gear 8 are initially engaged with and then disengaged from the driving gear 5, the driving gear 5 will drive the cutting blade body 3 to rotate by a fixed angle around the rotation axis. When the sector gear 8 and the driving gear 5 are disengaged, they will not be in contact with each other. At this time, the cutting blade body 3 will be reset and rotated by the stretched tension spring 303, so that the fixed-length channel 301 of the cutting blade body 3 can be aligned with the conveying channel 101 again, facilitating the device to reciprocally perform equal-length cutting and rounding trimming on the nose strip. At the same time, the guide wheel 408 can be reset by the traction of the reset spring 409 on the sliding rod member 407.

[0054] Please refer to Figures 1-6 , inner cavities are provided on both sides of the conveying channel 101, and a conveying mechanism 2 is arranged in the inner cavities. The conveying mechanism 2 includes a conveying roller 201 movably connected in the inner cavities. A toothed disc 202 is fixed to the upper end of the conveying roller 201. Adjacent conveying rollers 201 on both sides of the conveying channel 101 are meshed and driven through the toothed discs 202.

[0055] One end of the lower end of one of the conveying rollers 201 is connected to a first motor 203, and the first motor 203 is installed on one side of the vertical plate 6. Synchronous wheels are connected to the tops of adjacent toothed discs 202 on the same side of the conveying channel 101. A synchronous belt is sleeved between the two synchronous wheels. The synchronous wheels and the synchronous belt together form a synchronous assembly 204 for driving adjacent toothed discs 202 on the same side to rotate in the same direction.

[0056] During specific implementation, the first motor 203 on one side of the vertical plate 6 is started, so that the first motor 203 drives one of the conveying rollers 201 to rotate forward. Thus, adjacent conveying rollers 201 on both sides of the conveying channel 101 are meshed with each other through the toothed discs 202, facilitating the adjacent conveying rollers 201 to rotate in opposite directions to feed the nose strip raw material. At the same time, the synchronous wheels and the synchronous belt of the synchronous assembly 204 can drive the two groups of conveying rollers 201 to synchronously drive the nose strip raw material through the guide block 103 and convey it into the fixed-length channel 301 of the cutting blade body 3.

[0057] Please refer to Figures 1-3 and Figure 5 , an induction plate 304 is fixed to the upper side wall of the cutting blade body 3. A bracket is fixed to the upper side wall of the machine base 1 close to the induction plate 304, and a proximity switch 9 is installed in the middle of the bracket.

[0058] During specific implementation, when the cutting blade body 3 rotates forward to cut the nose bridge strip, the induction plate 304 on the cutting blade body 3 will move away from the proximity switch 9 on the machine base 1, enabling the proximity switch 9 to obtain the signal that the cutting blade body 3 cuts the nose bridge strip. At this time, the proximity switch 9 transmits the signal to the external PLC controller of the cutting device, causing the PLC controller to control the first motor 203 to stop rotating, so that the conveying roller 201 stops feeding.

[0059] When the tension spring 303 pulls the cutting blade body 3 to reset and rotate and fits against the edge of the machine base 1 close to the working area 102, the induction plate 304 on the cutting blade body 3 will approach the proximity switch 9, enabling the proximity switch 9 to obtain the signal that the cutting blade body 3 is in place after reset. At this time, the proximity switch 9 transmits the signal to the external PLC controller of the cutting device, causing the PLC controller to control the first motor 203 to start rotating, so that the conveying roller 201 rotates for feeding, facilitating the nose bridge strip raw material to be fed into the fixed-length channel 301 of the cutting blade body 3 again for fixed-length storage.

[0060] In summary, the nose bridge strip raw material is sent along the conveying channel 101 to the fixed-length channel 301 inside the cutting blade body 3 through the conveying mechanism 2. Then, the second motor 7 is started to drive the sector gear 8 to mesh with the driving gear 5. Thus, the cutting blade body 3 can cooperate with the cutting edge 302 and the guiding block 103 to cut the nose bridge strip flatly. And when the cutting blade body 3 rotates to convey the nose bridge strip, the edge trimming mechanism 4 can perform rounding trimming on the nose bridge strip. When the cutting blade body 3 rotates to align the fixed-length channel 301 with the lower material discharge port 1022, the nose bridge strip finished product and the trimmed material that has been peeled off will both fall onto the belt conveyor 601 for conveying. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0061] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A positioning and cutting device for a mask machine, comprising a machine base (1) and a cutting blade (3) for cutting a nose bridge strip of a mask; characterized in that: A conveying channel (101) for loading nose bridge strips is provided on the upper surface of one side of the machine base (1), a downwardly recessed working area (102) is provided on the other side of the machine base (1), a guide block (103) is symmetrically mounted on one end of the conveying channel (101) close to the working area (102), a cutting knife body (3) is connected to the working area (102) via a rotating shaft, a strip-shaped blanking opening (1022) is provided through the surface of the working area (102), and a top block (1023) is mounted on the upper edge of the working area (102) close to the blanking opening (1022); The interior of the cutting blade (3) is provided with a fixed-length channel (301) for positioning and storing the nose bridge strip, and a cutting edge (302) for cutting the nose bridge strip is provided on one side edge of the fixed-length channel (301). A tension spring (303) is connected between the upper side of the cutting blade (3) and the upper side of the machine base (1). An edge trimming mechanism (4) for trimming the end of the nose bridge strip is provided on one side of the cutting blade (3). The edge trimming mechanism (4) comprises a plurality of cutting edges provided on the cutting blade (3). 3) a groove (401) on one side, wherein a movable seat (402) is slidably connected inside the groove (401), and trimming blades (404) are rotatably connected to the two ends of the movable seat (402) via a movable shaft, and a torsion spring (411) is sleeved on the movable shaft and abuts against the movable seat (402) and the trimming blade (404) respectively, an inclined block (410) is integrally formed on the inner wall edge of the trimming blade (404), and a guide wheel (408) is provided in the middle of the movable seat (402).

2. A positioning and cutting device for a mask machine according to claim 1, characterized in that: Magnetic blocks (403) for magnetically attracting the cutting blade (3) are installed at both ends of the cutting blade (3) near the outer edge of the groove (401); Both ends of the groove (401) are connected to the fixed-length channel (301) and are provided with reserved channels for the trimming blade (404) to move.

3. A positioning and cutting device for a mask machine according to claim 2, characterized in that: The upper and lower surfaces of the movable seat (402) are provided with a slide groove (405), a fixed plate (406) is welded to one side of the middle of the movable seat (402), a slide rod (407) slides through the middle of the fixed plate (406), a return spring (409) is fixed between one end of the slide rod (407) and the fixed plate (406), and a ring connected to the guide wheel (408) is fixed to the other end of the slide rod (407), and the two ends of the guide wheel (408) slide along the slide groove (405).

4. A positioning and cutting device for a mask machine according to claim 1, characterized in that: A pad (1021) abutting against the blanking opening (1022) is installed on the upper surface of the working area (102), and an extension strip is provided on the edge of the pad (1021) close to the blanking opening (1022).

5. A positioning and cutting device for a mask machine according to claim 4, characterized in that: The lower side of the cutting blade body (3) is provided with a horizontal cavity that fits with the pad (1021), and the lower side of the cutting blade body (3) close to the groove (401) is provided with an avoidance slide that is aligned with the extension strip.

6. A positioning and cutting device for a mask machine according to claim 1, characterized in that: A vertical plate (6) for mounting on a mask machine is also provided on one side of the machine base (1), and a belt conveyor (601) is installed below the vertical plate (6) near the material drop opening (1022).

7. A positioning and cutting device for a mask machine according to claim 6, characterized in that: A driving gear (5) is arranged on the rotating shaft at one end of the cutting blade body (3), a second motor (7) is mounted on one side of the vertical plate (6) via a detachable support, and a fan-shaped gear (8) is mounted on the bottom output end of the second motor (7).

8. A positioning and cutting device for a mask machine according to claim 1, characterized in that: An inner cavity is provided on both sides of the transmission channel (101), and a transmission mechanism (2) is arranged in the inner cavity. The transmission mechanism (2) comprises a transmission roller (201) movably connected in the inner cavity, a toothed disc (202) is fixed at the upper end of the transmission roller (201), and two adjacent transmission rollers (201) located on both sides of the transmission channel (101) are meshed and transmitted through the toothed disc (202).

9. A positioning and cutting device for a mask machine according to claim 8, characterized in that: A first motor (203) is connected to the lower end of one of the conveying rollers (201), and the first motor (203) is installed on one side of the vertical plate (6). A synchronous wheel is connected to the top of two adjacent toothed discs (202) on the same side of the conveying channel (101), and a synchronous belt is sleeved between the two synchronous wheels. The synchronous wheel and the synchronous belt form a synchronous assembly (204) that drives the two adjacent toothed discs (202) on the same side to rotate in the same direction.

10. A positioning and cutting device for a mask machine according to claim 1, characterized in that: An induction plate (304) is fixed to the upper side wall of the cutting blade body (3), a bracket is fixed to the upper side wall of the machine base (1) close to the induction plate (304), and a proximity switch (9) is installed in the middle of the bracket.

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