CN111838850A - Mask production machine - Google Patents

Abstract

The invention discloses a mask production machine, which comprises a rack, a cloth conveying wheel, a cutting mechanism and a forming device, wherein the cloth conveying wheel, the cutting mechanism and the forming device are connected to the rack, the cutting mechanism comprises a beam frame and a mould frame connected to the upper part of the beam frame, a pressure cylinder for cutting a nose bridge strip is connected to the upper part of the mould frame, a push cylinder for pushing the nose bridge strip is connected to the rear part of the mould frame, a driving shaft movably connected with the beam frame is arranged on the side part of the mould frame, a clamping roller and a resisting roller movably connected with the beam frame are arranged below the driving shaft, a cam for driving the clamping roller to intermittently rotate is connected to the center of the driving shaft, a first rotating rod for driving the resisting roller to ascend and descend is in threaded connection with the lower part of the beam; gauze mask production machinery can carry out gauze mask production and processing automatically to can carry out the regulation of bridge of the nose strip length according to the gauze mask type, effectively improve each type gauze mask bridge of the nose strip and place accuracy nature and installation quality.

Description

A kind of mask production machine

technical field

The invention relates to a mask production machine, in particular to a KN95 mask production machine.

Background technique

In the production process of masks, steps such as wrinkling, hemming, nose bridge strip assembly, pressure welding, die cutting, welding ear straps and packaging are generally required, while conventional nose bridge strip assembly requires different nose bridge strip cutting according to the size and specification of the mask. The equipment will be cut, that is, the nose bridge strips will be cut into different sizes for the assembly of masks through several sets of nose bridge strip cutting devices of different specifications, which not only increases the working space for the nose bridge strip assembly, but also reduces the production efficiency of masks. It is also not conducive to the maintenance of machinery and equipment by producers, and increases the cost of mask production; and conventional masks need to be disassembled in the process of production and debugging, which is not conducive to rapid debugging by producers, and is not conducive to the production conditions of masks of various specifications. , affecting the efficiency and convenience of mask debugging and production.

SUMMARY OF THE INVENTION

The invention mainly solves the technical problems existing in the prior art, thereby providing a mask that is convenient for adjusting, cutting and conveying various types of nose bridge strips, facilitates the rapid production and processing of masks of various specifications, and effectively improves the production convenience and production efficiency of masks. production machinery.

In order to solve the above-mentioned technical problems, the present invention is realized through the following technical solutions:

A mask production machine, comprising a frame, and a cloth conveying wheel for conveying cloth, a cutting mechanism for conveying and shearing nose bridge strips, and a forming device for processing and forming masks, which are connected to the frame. The cutting mechanism includes a beam frame, and a mold frame connected above the beam frame, a pressure cylinder for cutting the nose bridge is connected above the mold frame, and a push cylinder for pushing the nose bridge is connected behind the mold frame, and the mold frame is The side is provided with a drive shaft that is movably connected to the beam frame, and below the drive shaft is arranged a clamp bar and a back roller that are movably connected to the beam frame, and a cam for driving the clamp bar to rotate intermittently is connected to the center of the drive shaft. The bottom of the frame is threadedly connected with a first rotating rod for controlling the lifting and lowering of the roller; the forming device includes a pressing mechanism for pressing and shaping the mask, a fusion welding mechanism for sealing the edge of the mask, and a cutting and detaching mechanism for the mask. Pressing and cutting mechanism, which includes a profile frame, a roller and a pressing shaft movably connected to the center of the profile frame, and the two ends of the pressing shaft are provided with moving blocks that are slidably connected to the profile frame, and the upper screw connection of the profile frame is useful In the second rotating rod that controls the lifting and lowering of the moving block, the pressing and cutting mechanism includes a knife rest, a knife shaft arranged on the knife rest for cutting the mask, and an abutment shaft located below the knife shaft and movably connected with the knife rest, Both ends of the tool shaft are connected with shaft plates that are slidably matched with the tool rest, and the upper part of the tool rest is threadedly connected with a third rotating rod for controlling the lifting and lowering of the shaft plate.

Preferably, a material chute is provided on the side of the mold base, a push groove is provided in front of the mold base, and a cut groove is provided above the mold base. It is connected with the push groove, and the inside of the cut groove is provided with a cutter connected with the pressure cylinder. The inside of the push groove is provided with a push plate connected with the push cylinder, so that the nose bridge can enter the material groove, so that the pressure cylinder drives The cutter cuts the nose bridge strip, and drops the cut nose bridge strip into the push groove. The nose bridge strip located in the mold frame is pushed out through the push cylinder to drive the push plate, so as to facilitate the rapid cutting of the nose bridge strip of the mask. delivery.

Preferably, two or more cams are detachably connected to the center of the drive shaft, and beam blocks are movably connected to both ends of the backing roller, the beam blocks are slidably connected to the center of the beam frame, and the beam blocks are connected to the first A first spring is connected between the rotating rods, the cam is in contact with the clamping rod, the rotation of the drive shaft can be intermittently rotated by the cam driving the clamping rod, and the clamping rod and the abutting roller are connected by transmission to each other, so that the clamping rod and the abutting rod are connected by transmission. The rotation of the roller can transport the bridge of the nose, and the first rotating rod can drive the roller to lift and adjust, and through the setting of the first spring, the clamping tightness of the clamp and the roller to the bridge of the nose can be increased to avoid the clamp and the roller. The gap between them is too large or too small, which will cause problems such as jamming or inability to drive the bridge of the nose, which effectively improves the conveying effect of the clamp and the roller to the bridge of the nose.

Preferably, the side of the beam frame is connected with a material wheel for storing the nose bridge, the center of the beam frame is connected with a guide rail, and a guide groove is arranged in the center of the guide rail, and one end of the guide groove is located between the clamp and the roller, The other end of the guide groove is connected with the material trough, so that the nose bridge strips can be stored in the material wheel, and the nose bridge strips are introduced into the guide rail through the clamp bar and the roller, and the nose bridge strips are intermittently input through the guide groove in the guide rail. into the trough for cutting.

Preferably, a fusion welding mechanism is connected to the front of the mold base and the forming device. The fusion welding mechanism includes a bracket and a generator connected below the bracket. The center of the bracket is provided with a welding shaft and a welding head. The welding head is arranged above the generator, the two ends of the welding shaft are movably connected with a slider, the slider is slidably connected to the center of the bracket, and a fourth spring connected to the bracket is arranged below the slider, The upper part of the bracket is threadedly connected with a fourth rotating rod for pressing the slider, and the lower part of the bracket is threadedly connected with a rod used to support the slider, so that the mask cloth can be input between the welding shaft and the welding head, and the welding head is driven by the generator The mask fabric is melted and welded, the fourth rotating rod can control the lifting and lowering of the slider, and the slider is supported by the fourth spring, and the abutting rod can limit the slider, so that the fourth rotating rod can The position of the welding shaft is fixed with the abutting rod, so that the sliding shaft and the welding head can cooperate to weld the mask cloth, and the transmitter is an ultrasonic generator.

Preferably, a folding plate for preliminarily folding and pressing the mask is provided between the forming device and the mold base, the folding plate is connected to the frame, and a steering rod is connected in front of the pressing mechanism, and the steering rod is located at the front of the folding plate. Below, the mask fabric is initially bent through the folding plate, and the steering rod inputs the bent mask fabric into the pressing mechanism for shaping, so as to facilitate the welding, cutting and production of the mask, and the folding plate is a triangle. The structure is directed toward the steering rod, which is connected above the pressing mechanism.

Preferably, the forming device is also provided with a vertical frame connected with the frame, the two sides of the vertical frame are provided with clamping grooves, the center of the clamping groove is provided with an adjusting roller, and the upper part of the vertical frame is matched and connected with a The locking rod that controls the lifting and lowering of the adjusting roller, one end of the locking rod is movably connected with the adjusting roller, and the other end of the locking rod is threadedly connected with the vertical frame, so that the locking rod can rotate above the vertical frame, and the lock rod can rotate through the lock rod. The adjustment roller is rotated to lift and lower, so as to control the tightness of the mask cloth conveyed in the molding device by adjusting the height of the adjustment roller. The molding device is provided with several pressing mechanisms, and two adjacent mechanisms There are adjusting rollers in between.

Preferably, the moving block in the pressing mechanism is slidably connected to the side of the mold frame, the outside of the moving block is provided with a clip connected to the mold frame, and the center of the moving block is movably connected with a pressure rod, and the pressure rod is located at the The top of the clamping bar runs through the moving block, and the two ends of the pressing rod are provided with pressure grooves that match the clamping strip. The side of the pressing rod is connected with a handle for driving the pressing rod to rotate, so that the clamping strip can lift the moving block. Restriction, avoid the possibility of the moving block being separated from the frame, and allow the manufacturer to press the handle to drive the pressure rod to rotate, and the pressure groove and the clamping bar are in contact and cooperate with each other through the rotation of the pressure rod, so as to facilitate the support and driving of the pressure rod through the clamping strip. The pressing rod lifts the moving block and the pressing shaft movably connected with the moving block, thereby increasing the gap between the pressing shaft and the roller.

Preferably, a second spring connected to the second rotating rod is arranged above the moving block, and a third spring connected to the mold frame is arranged below the moving block, and the return of the moving block is increased by the arrangement of the second spring and the third spring Positioning effect, so that the pressing rod can lift the pressing shaft, and improve the clamping tightness and shaping effect of the pressing shaft and the roller on the mask fabric.

Preferably, a motor is connected to the lower part of the frame, and a transmission shaft is connected with the motor to drive the cloth feeding wheel, the cutting mechanism, the fusion welding mechanism, the pressing mechanism and the pressing and cutting mechanism to rotate and move. It is connected with the feeding wheel, drive shaft, welding shaft, pressing shaft and cutter shaft. The feeding wheel is provided with two and is driven by a chain between each other, so that the motor drives the feeding wheel and cutting mechanism through the transmission shaft. , Welding mechanism, pressing mechanism and pressing and cutting mechanism convey, weld, shape and cut the nose bridge strip and mask fabric.

The beneficial effects of the present invention are: since the center of the drive shaft is connected with a cam for intermittently driving the rotation of the clamp bar, and more than two cams are provided, the user can control the pair of the clamp bar and the roller by adjusting the contact area between the cam and the clamp bar. The conveying length of the nose bridge strip is convenient for the cutter to cut the nose bridge strip input into the mold base in a reasonable size, without multiple sets of nose bridge strip cutting devices of different specifications for cutting different nose bridge strip sizes, which not only reduces the size of the nose bridge The mechanical cost of the strip cutter device reduces the space occupancy required for the conventional nose bridge strip assembly operation, facilitates the maintenance of the cutting mechanism by the manufacturer, and facilitates the manufacturer to adjust and cut off various specifications and sizes of the nose bridge strip at any time, effectively improving the nose bridge. The adjustment convenience of the strip assembly operation increases the production efficiency of mask debugging; the side of the mold base is provided with a trough for the input of nose bridge strips, the front of the mold base is provided with a push groove located below the trough, and the upper part of the mold base is provided with a penetrating trough. The slotting of the trough and the push slot allows the cutter in the slot to accurately cut the nose bridge in the slot, and let the cut nose bridge automatically fall into the push slot through the push plate. It is transported into the mask fabric for packaging, which effectively improves the packaging accuracy and production quality of the nose bridge strip inside the mask; and the molding device is provided with a pressing mechanism, a welding mechanism and a pressing and cutting mechanism, so that the mask fabric can pass through the pressing mechanism. The final press and roller are used for rapid setting, the welding shaft and the welding head are used to seal the edges of the mask, and the mask in the mask fabric is separated and cut by the knife shaft and the abutment shaft, which is convenient for the fully automatic forming and cutting of the mask, and effectively improves the quality of the mask. production efficiency and convenience.

Description of drawings

Fig. 1 is the structural representation of a kind of mask production machinery of the present invention;

Fig. 2 is the structural representation of cutting mechanism in a kind of mask production machine of the present invention;

Fig. 3 is the structural representation of the molding device in a kind of mask production machine of the present invention;

Fig. 4 is the structural representation of fusion welding mechanism in a kind of mask production machine of the present invention;

5 is a schematic structural diagram of a pressure-type mechanism in a mask production machine of the present invention.

In the figure: frame 1, cloth feeding wheel 11, motor 12, transmission shaft 121, folding plate 13, cutting mechanism 2, beam frame 21, clamping bar 22, roller 221, first spring 222, first rotating rod 223, Die base 23, material trough 231, push groove 232, pressure cylinder 24, cutter 241, push cylinder 25, push plate 251, drive shaft 26, cam 261, guide rail 27, forming device 3, forming mechanism 31, form frame 311 , roller 312, pressing shaft 313, pressing rod 314, clip 3141, pressing groove 3142, handle 3143, moving block 315, second rotating rod 316, second spring 317, third spring 318, pressing and cutting mechanism 32, knife holder 321, knife shaft 322, abutting shaft 323, shaft plate 324, third rotating rod 325, steering rod 33, adjusting roller 34, stand 35, locking rod 351, card slot 352, welding mechanism 4, bracket 41, fourth The rotating rod 411 , the abutting rod 412 , the welding shaft 42 , the sliding block 421 , the fourth spring 422 , the welding head 43 , and the transmitter 44 .

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help the understanding of the present invention, but do not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in Figures 1 to 5, a mask production machine includes a frame 1, a cloth feeding wheel 11 connected to the frame 1 for conveying cloth, and a cutting mechanism 2 for conveying and shearing the bridge of the nose. With the molding device 3 used for mask processing and molding, the cutting mechanism 2 includes a beam frame 21, and a mold frame 23 connected above the beam frame 21, and a pressure cylinder for cutting the nose bridge is connected above the mold frame 23. 24, the rear of the mold base 23 is connected with a push cylinder 25 for pushing the nose bridge strip, and the side of the mold base 23 is provided with a drive shaft 26 that is movably connected to the beam frame 21, and below the drive shaft 26 is provided with the beam frame 21. The clamp bar 22 and the roller 221 are movably connected. The center of the drive shaft 26 is matched with a cam 261 for driving the clamp bar 22 to rotate intermittently. 223; the forming device 3 includes a pressing mechanism 31 for reshaping the mask, a fusion welding mechanism 4 for edge sealing of the mask, and a pressing and cutting mechanism 32 for cutting and detaching the mask, and the pressing mechanism 31 includes The mold frame 311, the roller 312 and the pressing shaft 313 movably connected in the center of the mold frame 311, the two ends of the pressing shaft 313 are provided with moving blocks 315 that are slidably connected with the mold frame 311, and the upper part of the mold frame 311 is threadedly connected to control The second rotary rod 316 of the moving block 315 lifts and lowers, the pressing and cutting mechanism 32 includes a knife rest 321, and a knife shaft 322 arranged on the knife rest 321 for cutting masks, and is located below the knife shaft 322 and is connected with the knife rest 321. The abutment shaft 323 is movably connected, the two ends of the knife shaft 322 are connected with a shaft plate 324 which is slidingly matched with the tool rest 321 , and the upper part of the tool rest 321 is threadedly connected with a third rotating rod 325 for controlling the lifting and lowering of the shaft plate 324 .

A material chute 231 is provided on the side of the mold base 23, a push groove 232 is provided in front of the mold base 23, and a cut groove (not marked) is provided above the mold base 23. The material chute 231 is located above the push groove 232, The cutting groove penetrates through the feeding groove 231 and communicates with the pushing groove 232 . A cutting knife 241 connected to the pressing cylinder 24 is arranged inside the cutting groove, and a pushing plate 251 connected to the pushing cylinder 25 is arranged inside the pushing groove 232 . , so that the bridge of the nose can enter the trough 231, so that the pressure cylinder 24 drives the cutter 241 to cut the bridge of the nose, and allows the cut nose bridge to fall into the push groove 232, and the push plate is driven by the push cylinder 25. 251 pushes out the nose bridge strip located in the mold base 23, which is convenient for fast cutting and conveying of the nose bridge strip of the mask.

Two or more cams 261 are detachably connected to the center of the drive shaft 26 , and beam blocks (not marked) are movably connected to both ends of the backing roller 221 , and the beam blocks are slidably connected to the center of the beam frame 21 . A first spring 222 is connected between the beam block and the first rotating rod 223, and the cam 261 is in contact with the clamping rod 22. The rotation of the driving shaft 26 can drive the clamping rod 22 to rotate intermittently through the cam 261. The clamping rod 22 It is connected with the backing roller 221 by transmission, so that the rotation of the clamping bar 22 and the backing roller 221 can transport the nose bridge, and the first rotating rod 223 can drive the backing roller 221 to adjust the lifting and lowering, and through the setting of the first spring 222 Increase the clamping tightness of the clamp bar 22 and the roller 221 to the nose bridge, avoid the gap between the clamp bar 22 and the roller 221 being too large or too small and cause problems such as jamming or inability to drive the nose bridge, effectively improving the clamp bar 22 and the anvil roller. 221 on the delivery effect of nose bridge strips.

The side of the beam frame 21 is connected with a material wheel 28 for storing the nose bridge, the center of the beam frame 21 is connected with a guide rail 27, and a guide groove (not marked) is provided in the center of the guide rail 27. Between 22 and the resisting roller 221, the other end of the guide groove is communicated with the material trough 231, so that the nose bridge strips can be stored in the material wheel 28, and the nose bridge strips are introduced into the guide rail 27 through the clamp bar 22 and the resisting roller 221, Through the guide groove in the guide rail 27, the nose bridge strip is intermittently input into the material groove 231 to be cut.

A fusion welding mechanism 4 is connected to the front of the mold base 23 and the forming device 3. The fusion welding mechanism 4 includes a bracket 41 and a generator 44 connected below the bracket 41. The center of the bracket 41 is provided with a welding device. The shaft 42 and the welding head 43, the welding head 43 is arranged above the generator 44, the two ends of the welding shaft 42 are movably connected with sliders 421, and the sliders 421 are slidably connected to the center of the bracket 41, and are slidably connected. The bottom of the block 421 is provided with a fourth spring 422 connected with the bracket 41 , the upper part of the bracket 41 is threadedly connected with a fourth rotating rod 411 for pressing the slider 421 , and the lower part of the bracket 41 is threadedly connected with a rod for supporting the slider 421 412, the mask cloth can be input between the welding shaft 42 and the welding head 43, and the mask cloth is melted and welded by the generator 44 to drive the welding head 43, and the fourth rotary rod 411 can lift the slider 421 to control, and The slider 421 is supported by the fourth spring 422 , and the abutting rod 412 can limit the sliding block 421 , so that the fourth rotating rod 411 and the abutting rod 412 fix the position of the welding shaft 42 so as to facilitate the sliding shaft 42 In cooperation with the welding head 43, the mask cloth is welded and processed, and the transmitter 44 is an ultrasonic generator.

A folding plate 13 for preliminarily folding and pressing the mask is provided between the forming device 3 and the mold frame 23, the folding plate 13 is connected with the frame 1, and a steering rod 33 is connected in front of the pressing mechanism 31. The steering rod 33 is located below the folding plate 13, so that the mask fabric is preliminarily bent through the folding plate 13, and the steering rod 33 inputs the bent mask fabric into the pressing mechanism 31 for shaping, so as to facilitate the welding and cutting of the mask. In production, the folding plate 13 has a triangular structure and faces the steering rod 33 , and the steering rod 33 is connected above the pressing mechanism 31 .

The forming device 3 is also provided with a vertical frame 35 connected to the frame. The two sides of the vertical frame 35 are provided with clamping grooves 352 , and the center of the clamping groove 352 is provided with a regulating roller 34 , and the upper part of the vertical frame 35 is provided. A locking rod 351 for controlling the lifting and lowering of the adjusting roller 34 is matched and connected. One end of the locking rod 351 is movably connected with the adjusting roller 34, and the other end of the locking rod 351 is threadedly connected with the vertical frame 35, so that the locking rod 351 can be placed on the vertical frame. The top of 35 is rotated, and the adjustment roller 34 is lifted and lowered by the rotation of the lock lever 351, so as to control the tightness of the mask cloth in the forming device 3 by adjusting the height of the adjusting roller 34. 3 is provided with several pressing mechanisms 31, and adjustment rollers are provided between two adjacent mechanisms.

The shifting block 315 in the pressing mechanism 31 is slidably connected to the side of the profile frame 311 , the outside of the shifting block 315 is provided with a clip 3141 connected with the profile frame 311 , and the center of the shifting block 315 is movably connected with a pressing rod 314 . The pressing rod 314 is located above the clamping bar 3141 and penetrates the shifting block 315 , and two ends of the pressing rod 314 are provided with pressing grooves 3142 matched with the clamping bar 3141 , and a side of the pressing rod 314 is connected to drive the pressing rod 314 to rotate the handle 3143, so that the clip 3141 can limit the lifting and lowering of the moving block 315, avoid the possibility of the moving block 315 being separated from the frame 311, and allow the manufacturer to press the handle 3143 to drive the pressure rod 314 to rotate, through the rotation of the pressure rod 314 Let the pressure groove 3142 and the clamping bar 3141 be in contact with each other, so that the pressure rod 314 can be driven to lift the moving block 315 and the pressure shaft 313 movably connected with the moving block 315 through the support of the clamping strip 3141 to the pressure rod 314, thereby increasing the pressure shaft 313 and the roller. Gap between 312.

A second spring 317 connected to the second rotating rod 316 is arranged above the moving block 315, and a third spring 318 connected to the frame 311 is arranged below the moving block 315. The second spring 317 and the third spring 318 are arranged The return effect of the moving block 31 is increased, so that the pressing rod 314 can lift the pressing shaft 313, thereby improving the clamping, firmness and shaping effect of the pressing shaft 313 and the roller 312 on the mask fabric.

The lower part of the frame 1 is connected with a motor 12, and is connected with the motor 12 to drive the cloth feeding wheel 11, the cutting mechanism 2, the fusion welding mechanism 4, the pressing mechanism 31 and the pressing and cutting mechanism 32. The transmission shaft rotates and moves. 121, the transmission shaft 121 is in a transmission connection with the cloth feeding wheel 11, the driving shaft 26, the welding shaft 42, the pressing shaft 313 and the cutter shaft 322. The cloth feeding wheel 11 is provided with two and is driven by a chain between each other, The motor 12 can drive the cloth feeding wheel 11, the cutting mechanism 2, the welding mechanism 4, the pressing mechanism 31 and the pressing and cutting mechanism 32 through the transmission shaft 121 to convey, weld, shape and cut the nose bridge strip and the mask cloth.

The mask production machine first allows the multi-layer mask fabric to be input to the front of the cutting mechanism 2 through the feeding wheel 11, the nose bridge is stored through the material wheel 28, and one end of the nose bridge is input to the die frame through the clamp bar 22 and the abutting roller 221. In 23, the producer controls the conveying length of the nose bridge by adjusting the contact area between the cam 261 and the clamp 22, that is, the drive shaft 26 drives the cam 261 to rotate, and drives the clamp 22 and the counter roller 221 through the contact between the cam 261 and the clamp 22. The nose bridge strips are transported in real time; the nose bridge strips are intermittently input into the trough 231 in the center of the die frame 23 through the guide rail 27, and the pressure cylinder 24 drives the cutter 241 to cut the nose bridge strips, and the cut nose bridge strips fall into into the push groove 232, and drive the push plate 251 through the push cylinder 25 to push the nose bridge strip located in the push groove 232 between the multi-layer mask fabrics; wherein the producer can drive the roller 221 by rotating the first rotating rod 223 The lifting adjustment is performed to control the gap between the clamping roller 22 and the roller 221. The first spring 222 between the roller 221 and the first rotating rod 223 is convenient to control the clamping and conveying of the nose bridge by the clamping roller 22 and the roller 221. At the same time, the mask cloth inlaid with the bridge of the nose is input into the fusion welding mechanism 4 in front of the cutting mechanism 2, and the welding shaft 42 and the welding head 43 in the fusion welding mechanism 4 are welded with the cloth around the bridge of the nose in the mask cloth. That is, the welding head 43 is driven by the generator 44 to fuse the multi-layer mask cloth, so that the bridge of the nose can be limited and fixed in the mask cloth, and the gap between the welding shaft 42 and the welding head 43 can be carried out by the fourth rotating rod 411. Adjustment, that is, when the fourth rotary rod 411 is rotated, the slider 421 can be driven to rise and fall, so that the slider 421 can simultaneously drive the welding shaft 42 to rise and fall. The support is fixed to avoid the possibility of the welding shaft shaking due to the sliding of the sliding block. The setting of the fourth spring 422 between the sliding block 421 and the bracket 41 is convenient to automatically lift the sliding block 421 when the fourth rotating rod 411 is released. It is convenient for the producer to adjust the lifting and lowering of the welding shaft 42; and the mask fabric with the nose bridge strips welded by welding continues to be input on the folding plate 13 for preliminary bending, and is guided by the steering rod 33 to allow the mask fabric to be input into the molding device 3. Preliminary shaping processing is carried out in the pressing mechanism 31, that is, the mask cloth is input between the pressing shaft 313 and the roller 312, and the mask cloth is shaped and conveyed by the rotation of the pressing shaft 313 and the roller 312; The rod 316 controls the moving block 315 and the pressure shaft 313 connected to the moving block 315 to move up and down. The second spring 317 and the third spring 318 arranged on the upper and lower sides of the moving block 315 make the moving block 315 have the effect of automatic return, so as to facilitate the pressure shaft 313 It can be separated from the roller 312 immediately, and the manufacturer drives the pressing rod 314 to rotate when pressing the handle 3143, and controls whether the grooves 3142 at both ends of the pressing rod 314 are matched with the clips 3141 through the rotation of the pressing rod 314, and the pressing grooves 3142 with card strip 3141 When matched, the pressing shaft 313 and the roller 312 clamp and convey the mask fabric. When the pressing groove 3142 and the clip 3141 are separated, the pressing shaft 313 is raised to expand the distance between the pressing shaft 313 and the roller 312, which is convenient for the manufacturer to operate and maintain And the mask cloth after the shaping mechanism 31 is shaped is then input to the welding shaft 42 of the fusion welding mechanism 4 and the welding head 43 to carry out the edge sealing process of the mask, and the mask cloth that the fusion welding is completed is input to the pressure cutting mechanism 32. Between the knife shaft 322 and the abutment shaft 323, the mask formed in the mask cloth is cut and separated by the cutter (not marked) connected on the surface of the knife shaft 322, so as to complete the automatic production and processing of the mask; Between the pressing and cutting mechanisms 32, other pressing mechanisms 31 are additionally arranged for pressing and leveling the mask, and between the two adjacent mechanisms in the forming device 3 are respectively connected with adjustment rollers 34 to adjust the tightness of the mask cloth, In order to improve the integrity and quality of masks after forming and cutting.

The beneficial effects of the present invention are: since the center of the drive shaft is connected with a cam for intermittently driving the rotation of the clamp bar, and more than two cams are provided, the user can control the pair of the clamp bar and the roller by adjusting the contact area between the cam and the clamp bar. The conveying length of the nose bridge strip is convenient for the cutter to cut the nose bridge strip input into the mold base in a reasonable size, without multiple sets of nose bridge strip cutting devices of different specifications for cutting different nose bridge strip sizes, which not only reduces the size of the nose bridge The mechanical cost of the strip cutter device reduces the space occupancy required for the conventional nose bridge strip assembly operation, facilitates the maintenance of the cutting mechanism by the manufacturer, and facilitates the manufacturer to adjust and cut off various specifications and sizes of the nose bridge strip at any time, effectively improving the nose bridge. The adjustment convenience of the strip assembly operation increases the production efficiency of mask debugging; the side of the mold base is provided with a trough for the input of nose bridge strips, the front of the mold base is provided with a push groove located below the trough, and the upper part of the mold base is provided with a penetrating trough. The slotting of the trough and the push slot allows the cutter in the slot to accurately cut the nose bridge in the slot, and let the cut nose bridge automatically fall into the push slot through the push plate. It is transported into the mask fabric for packaging, which effectively improves the packaging accuracy and production quality of the nose bridge strip inside the mask; and the molding device is provided with a pressing mechanism, a welding mechanism and a pressing and cutting mechanism, so that the mask fabric can pass through the pressing mechanism. The final press and roller are used for rapid setting, the welding shaft and the welding head are used to seal the edges of the mask, and the mask in the mask fabric is separated and cut by the knife shaft and the abutment shaft, which is convenient for the fully automatic forming and cutting of the mask, and effectively improves the quality of the mask. production efficiency and convenience.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and alterations can be made to these embodiments, which still fall within the protection scope of the present invention.

Claims (10)

1. A mask production machine, comprising a frame, and a cloth feeding wheel for conveying cloth connected on the frame, a cutting mechanism for conveying and shearing a nose bridge strip, and a molding device for processing and forming a mask, which It is characterized in that: the cutting mechanism includes a beam frame, and a mold frame connected above the beam frame, a pressure cylinder for cutting the nose bridge is connected above the mold frame, and a pusher for pushing the nose bridge is connected behind the mold frame. Cylinder, and the side of the mold frame is provided with a drive shaft that is movably connected to the beam frame, and below the drive shaft is provided with a clamp bar and a roller that is movably connected to the beam frame, and the center of the drive shaft is matched and connected to drive the clamp bar to rotate intermittently The cam, the lower part of the beam frame is threadedly connected with a first rotating rod for controlling the lifting and lowering of the roller; the forming device includes a pressing mechanism for the mask compression and shaping, a fusion welding mechanism for the mask edge sealing and a The pressing and cutting mechanism for cutting and disengaging the mask, the pressing mechanism includes a mold frame, and a roller and a pressing shaft that are movably connected in the center of the mold frame. The upper part of the frame is threadedly connected with a second rotating rod for controlling the lifting of the moving block. The pressing and cutting mechanism includes a tool holder, and a tool shaft arranged on the tool holder for cutting the mask, and is located below the tool shaft and is connected with the tool holder. The abutment shaft is movably connected, the two ends of the knife shaft are connected with a shaft plate that is slidingly matched with the tool rest, and the upper part of the tool rest is threadedly connected with a third rotating rod for controlling the lifting and lowering of the shaft plate. 2. A kind of mask production machine according to claim 1, is characterized in that: the side of described mould base is provided with material trough, the front of mould base is provided with push groove, the top of mould base is provided with cut groove, described The trough is located above the push trough, the trough runs through the trough and communicates with the trough, the inside of the trough is provided with a cutter connected to the pressure cylinder, and the inside of the trough is provided with a pusher connected to the cylinder. plate. 3. A mask production machine according to claim 2, characterized in that: the center of the drive shaft is detachably connected with more than two cams, the two ends of the roller are movably connected with beam blocks, and the beam The block is slidably connected to the center of the beam frame, and a first spring is connected between the beam block and the first rotating rod. 4. a kind of mask production machine according to claim 3, is characterized in that: the side of described beam frame is connected with the material wheel for storing nose bridge, the center of beam frame is connected with guide rail, and described guide rail center is provided with A guide groove, one end of the guide groove is located between the clamping roller and the roller, and the other end of the guide groove is communicated with the material groove. 5. a kind of mask production machine according to claim 1, is characterized in that: the front of described mould base and forming device are all connected with fusion welding mechanism, and described fusion welding mechanism comprises support, and is connected under support The generator, the center of the bracket is provided with a welding shaft and a welding head, the welding head is arranged above the generator, the two ends of the welding shaft are movably connected with sliders, and the sliders are slidably connected to the center of the bracket , and a fourth spring connected to the bracket is arranged below the slider, a fourth rotating rod for pressing the slider is threadedly connected above the bracket, and an abutting rod for supporting the slider is threadedly connected to the lower part of the bracket. 6. A kind of mask production machine according to claim 1, it is characterized in that: between the described molding device and the mold base, a folding plate for preliminarily folding and pressing the mask is provided, and the folding plate is connected with the frame, and the molding A steering rod is connected to the front of the mechanism, and the steering rod is located below the folding plate. 7. A mask production machine according to claim 1, characterized in that: the forming device is also provided with a stand connected to the frame, and both sides of the stand are provided with card slots, and the snap A regulating roller is arranged in the center of the groove, and a locking rod for controlling the lifting and lowering of the regulating roller is matched and connected to the upper part of the vertical frame. 8. A mask production machine according to claim 1, characterized in that: in the pressing mechanism, the moving block is slidably connected to the side of the mold frame, and the outside of the moving block is provided with a clip connected to the mold frame , the center of the moving block is movably connected with a pressure rod, the pressure rod is located above the clamping bar and penetrates the moving block, and the two ends of the pressure rod are provided with pressure grooves matching the clamping strip, and the side of the pressure rod is connected with a drive for driving Handle for lever rotation. 9. A kind of mask production machine according to claim 8, is characterized in that: the second spring connected with the second rotating rod is provided above the moving block, and the third spring connected with the profile frame is provided below the moving block . 10. A kind of mask production machine according to claim 1, is characterized in that: the lower part of described frame is connected with motor, and is connected with motor drive for driving cloth conveying wheel, cutting mechanism, fusion welding mechanism, pressing mechanism. The drive shaft of the type mechanism and the pressing and cutting mechanism rotates.

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