A mask production machine

Abstract

The invention discloses a mask production machine, comprising a frame, a cloth feeding wheel connected to the frame, a cutting mechanism and a forming device, wherein the cutting mechanism comprises a beam frame and a mold frame connected above the beam frame, a pressure cylinder for cutting a nose bridge strip is connected above the mold frame, a push cylinder for pushing the nose bridge strip is connected to the rear of the mold frame, a driving shaft movably connected to the beam frame is arranged on the side of the mold frame, a clamping rod and a resisting roller movably connected to the beam frame are arranged below the driving shaft, a cam for driving the clamping rod to rotate intermittently is connected at the center of the driving shaft, a first rotating rod for driving the resisting roller to rise and fall is threadedly connected below the beam frame, and the forming device comprises a pressing mechanism, a fusion welding mechanism and a pressing and cutting mechanism; the mask production machine can automatically perform mask production and processing, and can adjust the length of the nose bridge strip according to the type of the mask, effectively improving the placement accuracy and installation quality of the nose bridge strips of various types of masks.

Description

Technical Field

[0001] The present invention relates to a mask production machine, in particular to a KN95 mask production machine. Background Art

[0002] During the production process of masks, generally steps such as wrinkling, edging, nose strip assembly, pressure welding, die cutting, ear strap welding and packaging are required. Conventional nose strip assembly requires different nose strip cutting equipment to be used for cutting according to the different size specifications of the mask, that is, the nose strip is cut into different lengths for mask assembly through several sets of nose strip cutting devices of different specifications, which not only increases the working space for nose strip assembly and reduces the production efficiency of masks, but also is not conducive to the maintenance of mechanical equipment by producers, thereby increasing the production cost of masks. Moreover, conventional masks need to be disassembled in the process of production and debugging, which is not conducive to rapid debugging by producers and the production conditions of masks of various specifications, thus affecting the efficiency and convenience of mask debugging and production. Summary of the invention

[0003] The present invention mainly solves the technical problems existing in the prior art, thereby providing a mask production machine 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 convenience and efficiency of mask production.

[0004] In order to solve the above technical problems, the present invention is implemented by the following technical solutions:

[0005] A mask production machine comprises a frame, and a cloth feeding wheel connected to the frame for conveying cloth, a cutting mechanism for conveying and cutting a nose bridge strip, and a forming device for processing and forming the mask. The cutting mechanism comprises a beam frame, and a mold frame connected above the beam frame, a pressure cylinder for cutting the nose bridge strip is connected above the mold frame, a push cylinder for pushing the nose bridge strip is connected to the rear of the mold frame, and a driving shaft movably connected to the beam frame is arranged on the side of the mold frame, a clamping rod and a resisting roller movably connected to the beam frame are arranged below the driving shaft, a cam for driving the clamping rod to rotate intermittently is cooperatively connected to the center of the driving shaft, and a screw thread for controlling the lifting and lowering of the resisting roller is threadedly connected to the bottom of the beam frame. The first rotary rod; the molding device includes a pressing mechanism for pressing and shaping the mask, a welding mechanism for edge sealing the mask, and a pressing and cutting mechanism for cutting and separating the mask. The pressing mechanism includes a mold frame, and a roller and a pressing shaft movably connected to the center of the mold frame. Both ends of the pressing shaft are provided with moving blocks slidably connected to the mold frame, and the upper part of the mold frame is threadedly connected with a second rotary rod for controlling the lifting and lowering 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 a counter shaft located below the tool shaft and movably connected to the tool holder. Both ends of the tool shaft are connected with shaft plates slidably matched with the tool holder, and the upper part of the tool holder is threadedly connected with a third rotary rod for controlling the lifting and lowering of the shaft plate.

[0006] Preferably, a material trough is provided on the side of the mold frame, a push groove is provided in front of the mold frame, and a cutting groove is provided above the mold frame. The material trough is located above the push groove, and the cutting groove passes through the material trough and is connected with the push groove. A cutting knife connected to a pressure cylinder is provided inside the cutting groove, and a pushing plate connected to a pushing cylinder is provided inside the pushing groove, so that the nose bridge strip can enter the material trough, so that the pressure cylinder drives the cutting knife to cut the nose bridge strip, and the cut nose bridge strip falls into the pushing groove, and the nose bridge strip located in the mold frame is pushed out by driving the pushing plate through the pushing cylinder, so as to facilitate the rapid cutting and conveying of the nose bridge strip of the mask.

[0007] Preferably, more than two cams are detachably connected to the center of the driving shaft, and beam blocks are movably connected to both ends of the roller, and the beam blocks are slidably connected to the center of the beam frame. A first spring is connected between the beam block and the first rotating rod, and the cam is in contact with the clamping rod. The rotation of the driving shaft can drive the clamping rod to rotate intermittently through the cam, and the clamping rod and the roller are connected to each other through transmission, so that the rotation of the clamping rod and the roller can convey the bridge of the nose, and the first rotating rod can drive the roller to lift and lower, and the setting of the first spring increases the clamping tightness of the clamping rod and the roller on the bridge of the nose, avoiding problems such as jamming or inability to drive the bridge of the nose due to excessive or too small a gap between the clamping rod and the roller, and effectively improving the conveying effect of the clamping rod and the roller on the bridge of the nose.

[0008] Preferably, a material wheel for storing nose bridge strips is connected to the side of the beam frame, and a guide rail is connected to the center of the beam frame. A guide groove is arranged in the center of the guide rail, one end of the guide groove is located between the clamping rod and the anti-roller, and the other end of the guide groove is connected to the material trough, so that the nose bridge strip material can be stored in the material wheel, and the nose bridge strip is introduced into the guide rail through the clamping rod and the anti-roller, and the nose bridge strip is intermittently input into the material trough through the guide groove in the guide rail for cutting.

[0009] Preferably, a fusion welding mechanism is connected to the front of the mold frame and the forming device, and the fusion welding mechanism includes a bracket and a transmitter connected to the bottom of the bracket. A welding shaft and a welding head are arranged in the center of the bracket, and the welding head is arranged above the transmitter. Sliders are movably connected to both ends of the welding shaft, and the slider is 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 to the top of the bracket, and a push rod for supporting the slider is threadedly connected to the bottom of the bracket, so that the mask fabric can be input between the welding shaft and the welding head, and the welding head is driven by the transmitter to melt-weld the mask fabric. The fourth rotating rod can control the lifting and lowering of the slider, and the slider is supported by the fourth spring, and the push rod can limit the slider, so that the fourth rotating rod and the push rod fix the position of the welding shaft, so that the welding shaft and the welding head cooperate to perform fusion welding on the mask fabric, and the transmitter is an ultrasonic generator.

[0010] Preferably, a folding plate for preliminarily folding the mask is arranged between the molding device and the mold frame, the folding plate is connected to the frame, a turning rod is connected to the front of the molding mechanism, the turning rod is located below the folding plate, so that the mask fabric is preliminarily bent after passing through the folding plate, and the turning rod inputs the bent mask fabric into the molding mechanism for shaping, so as to facilitate the welding, cutting and production of the mask, the folding plate is a triangular structure and faces the turning rod, and the turning rod is connected above the molding mechanism.

[0011] Preferably, the forming device is further provided with a stand connected to the frame, slots are provided on both sides of the stand, an adjusting roller is provided in the center of the slot, and a locking rod for controlling the lifting and lowering of the adjusting roller is connected to the top of the stand, one end of the locking rod is movably connected to the adjusting roller, and the other end of the locking rod is threadedly connected to the stand, so that the locking rod can rotate above the stand, and the adjusting roller can be lifted and lowered by rotating the locking rod, so as to control the tightness of the mask fabric conveyed in the forming device by adjusting the height of the adjusting roller. The forming device is provided with a plurality of pressing mechanisms, and an adjusting roller is provided between two adjacent mechanisms.

[0012] Preferably, the moving block in the pressing mechanism is slidably connected to the side of the molding frame, and a clamping strip connected to the molding frame is arranged on the outside of the moving block, and a pressure rod is movably connected to the center of the moving block, and the pressure rod is located above the clamping strip and passes through the moving block, and pressure grooves matching the clamping strip are arranged at both ends of the pressure rod, and a handle for driving the pressure rod to rotate is connected to the side of the pressure rod, so that the clamping strip can limit the lifting and lowering of the moving block to avoid the possibility of the moving block being separated from the molding frame, and the producer can drive the pressure rod to rotate by pressing the handle, and the rotation of the pressure rod allows the pressure groove and the clamping strip to contact and cooperate with each other, so that the pressure rod can be driven to lift the moving block and the pressing shaft movably connected to the moving block through the support of the clamping strip to the pressure rod, thereby increasing the gap between the pressing shaft and the roller.

[0013] Preferably, a second spring connected to the second rotating rod is arranged above the moving block, and a third spring connected to the molding frame is arranged below the moving block. The setting of the second spring and the third spring increases the return effect of the moving block, so that the pressure rod can lift the pressure shaft, thereby improving the clamping tightness and shaping effect of the pressure shaft and the roller on the mask fabric.

[0014] Preferably, a motor is connected to the bottom of the frame, and a transmission shaft is connected to the motor to drive the cloth feed wheel, cutting mechanism, welding mechanism, profiling mechanism and cutting mechanism to rotate. The transmission shaft is connected to the cloth feed wheel, driving shaft, welding shaft, pressing shaft and knife shaft. Two cloth feed wheels are provided and are driven to each other by a chain, so that the motor drives the cloth feed wheel, cutting mechanism, welding mechanism, profiling mechanism and cutting mechanism through the transmission shaft to transport, weld, shape and cut the nose bridge and mask fabric.

[0015] The beneficial effects of the present invention are as follows: since a cam for intermittently driving the clamping rod to rotate is connected to the center of the driving shaft, and there are more than two cams, the user can control the conveying length of the clamping rod and the roller to the nose bridge strip by adjusting the contact area between the cam and the clamping rod, so that the cutter can cut the nose bridge strip input into the mold frame to a reasonable size, and there is no need for multiple sets of nose bridge strip cutting devices of different specifications to cut nose bridge strips of different sizes, which not only reduces the mechanical cost of the nose bridge strip cutting device, but also reduces the space occupied by conventional nose bridge strip assembly operations, making it convenient for producers to maintain the cutting mechanism, and also convenient for producers to adjust and cut the nose bridge strips of various specifications and sizes at any time, effectively improving the adjustment convenience of the nose bridge strip assembly operation, and increasing the mask debugging and production efficiency; and the side of the mold frame is provided with a useful A material trough for inputting the bridge of the nose strip is provided in front of the mold frame with a push groove located below the material trough, and a cutting groove penetrating the material trough and the push groove is provided above the mold frame, so that the cutting knife in the cutting groove can accurately cut the bridge of the nose strip in the material trough, and the cut bridge of the nose strip automatically falls into the push groove and is accurately transported to the mask fabric for packaging through the push plate, effectively improving the packaging accuracy and production quality of the bridge of the nose strip inside the mask; and the molding device is provided with a pressing mechanism, a fusion welding mechanism and a pressing and cutting mechanism, so that the mask fabric can be quickly shaped by the pressing shaft and roller in the pressing mechanism, the mask edge is sealed by the welding shaft and the welding head, and the mask is separated and cut in the mask fabric by the knife shaft and the resisting shaft, which is convenient for fully automated molding and cutting of the mask, and effectively improves the production efficiency and production convenience of the mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a mask production machine of the present invention;

[0017] Figure 2 This is a schematic structural diagram of a cutting mechanism in a mask production machine of the present invention;

[0018] Figure 3 This is a structural schematic diagram of a molding device in a mask production machine of the present invention;

[0019] Figure 4 This is a structural schematic diagram of a fusion welding mechanism in a mask production machine of the present invention;

[0020] Figure 5 This is a structural schematic diagram of a medium-pressure mechanism of a mask production machine of the present invention.

[0021] In the figure: frame 1, cloth feeding wheel 11, motor 12, transmission shaft 121, folding plate 13, cutting mechanism 2, beam frame 21, clamping rod 22, roller 221, first spring 222, first rotating rod 223, mold frame 23, material trough 231, push trough 232, pressure cylinder 24, cutter 241, push cylinder 25, push plate 251, drive shaft 26, cam 261, guide rail 27, forming device 3, pressing mechanism 31, mold frame 311, roller 312, pressing shaft 313, pressing rod 314, clamping strip 3141 , a pressure groove 3142, a handle 3143, a shift block 315, a second rotary rod 316, a second spring 317, a third spring 318, a pressing and cutting mechanism 32, a tool holder 321, a tool shaft 322, a counter shaft 323, a shaft plate 324, a third rotary rod 325, a steering rod 33, an adjusting roller 34, a stand 35, a locking rod 351, a slot 352, a fusion welding mechanism 4, a bracket 41, a fourth rotary rod 411, a counter rod 412, a welding shaft 42, a slider 421, a fourth spring 422, a welding head 43, and a transmitter 44. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does 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.

[0023] like Figures 1 to 5As shown, a mask production machine includes a frame 1, and a cloth feeding wheel 11 connected to the frame 1 for conveying cloth, a cutting mechanism 2 for conveying and cutting a nose bridge strip, and a forming device 3 for processing and forming a mask, wherein the cutting mechanism 2 includes a beam frame 21, and a mold frame 23 connected above the beam frame 21, a pressure cylinder 24 for cutting the nose bridge strip is connected above the mold frame 23, a push cylinder 25 for pushing the nose bridge strip is connected to the rear of the mold frame 23, and a driving shaft 26 movably connected to the beam frame 21 is arranged on the side of the mold frame 23, a clamping rod 22 and a resisting roller 221 movably connected to the beam frame 21 are arranged below the driving shaft 26, a cam 261 for driving the clamping rod 22 to rotate intermittently is matched and connected to the center of the driving shaft 26, and a first rotating rod 223 for controlling the lifting and lowering of the resisting roller 221 is threadedly connected below the beam frame 21; the forming device 3 includes a pressing mechanism 31 for pressing and shaping the mask, a welding mechanism 4 for sealing the edge of the mask, and a pressing mechanism 32 for cutting and separating the mask. The pressing mechanism 31 includes a frame 311, and a roller 312 and a pressing shaft 313 movably connected to the center of the frame 311. Both ends of the pressing shaft 313 are provided with a moving block 315 slidably connected to the frame 311. The upper part of the frame 311 is threadedly connected with a second rotating rod 316 for controlling the lifting of the moving block 315. The pressing mechanism 32 includes a tool holder 321, and a tool shaft 322 arranged on the tool holder 321 for cutting the mask, and a counter shaft 323 located below the tool shaft 322 and movably connected to the tool holder 321. Both ends of the tool shaft 322 are connected with a shaft plate 324 slidably matched with the tool holder 321. The upper part of the tool holder 321 is threadedly connected with a third rotating rod 325 for controlling the lifting of the shaft plate 324.

[0024] A material trough 231 is provided on the side of the mold frame 23, a push groove 232 is provided in front of the mold frame 23, and a cutting groove (not marked) is provided above the mold frame 23. The material trough 231 is located above the push groove 232, and the cutting groove passes through the material trough 231 and is connected with the push groove 232. A cutter 241 connected to the pressure cylinder 24 is provided inside the cutting groove, and a push plate 251 connected to the push cylinder 25 is provided inside the push groove 232, so that the nose bridge strip can enter the material trough 231, so that the pressure cylinder 24 drives the cutter 241 to cut the nose bridge strip, and the cut nose bridge strip falls into the push groove 232, and the push cylinder 25 drives the push plate 251 to push out the nose bridge strip located in the mold frame 23, so as to facilitate the rapid cutting and transportation of the nose bridge strip of the mask.

[0025] The center of the driving shaft 26 is detachably connected to two or more cams 261, and both ends of the roller 221 are movably connected with beam blocks (not marked), and the beam block is 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, and the clamping rod 22 and the roller 221 are mutually transmission-connected, so that the rotation of the clamping rod 22 and the roller 221 can convey the bridge of the nose, and the first rotating rod 223 can drive the roller 221 to be raised and lowered, and the setting of the first spring 222 increases the clamping tightness of the clamping rod 22 and the roller 221 on the bridge of the nose, so as to avoid problems such as jamming or inability to drive the bridge of the nose caused by too large or too small a gap between the clamping rod 22 and the roller 221, and effectively improve the conveying effect of the clamping rod 22 and the roller 221 on the bridge of the nose.

[0026] A material wheel 28 for storing nose bridge strips is connected to the side of the beam frame 21, and a guide rail 27 is connected to the center of the beam frame 21. A guide groove (not marked) is provided in the center of the guide rail 27, one end of the guide groove is located between the clamping rod 22 and the roller 221, and the other end of the guide groove is connected to the material trough 231, so that the nose bridge strip material can be stored in the material wheel 28, and the nose bridge strip is introduced into the guide rail 27 through the clamping rod 22 and the roller 221, and the nose bridge strip is intermittently input into the material trough 231 through the guide groove in the guide rail 27 for cutting.

[0027] The front of the mold frame 23 and the molding device 3 are both connected with a fusion welding mechanism 4, the fusion welding mechanism 4 includes a bracket 41, and a transmitter 44 connected to the bottom of the bracket 41, a welding shaft 42 and a welding head 43 are arranged in the center of the bracket 41, and the welding head 43 is arranged above the transmitter 44, and sliders 421 are movably connected at both ends of the welding shaft 42, and the slider 421 is slidably connected to the center of the bracket 41, and a fourth spring 422 connected to the bracket 41 is arranged below the slider 421, and a fourth rotary rod 411 for pressing the slider 421 is threadedly connected to the top of the bracket 41, and the bottom of the bracket 41 A support rod 412 for supporting the slider 421 is threadedly connected, so that the mask cloth can be input between the welding shaft 42 and the welding head 43, and the welding head 43 is driven by the transmitter 44 to melt and weld the mask cloth. The fourth rotating rod 411 can control the lifting of the slider 421 and support the slider 421 through the fourth spring 422. The support rod 412 can limit the slider 421, so that the fourth rotating rod 411 and the support rod 412 fix the position of the welding shaft 42, so that the welding shaft 42 and the welding head 43 cooperate to melt and weld the mask cloth. The transmitter 44 is an ultrasonic generator.

[0028] A folding plate 13 for preliminarily folding the mask is arranged between the molding device 3 and the mold frame 23. The folding plate 13 is connected to the frame 1. A turning rod 33 is connected to the front of the pressing mechanism 31. The turning rod 33 is located below the folding plate 13, so that the mask fabric is preliminarily bent after passing through the folding plate 13, and the turning rod 33 inputs the bent mask fabric into the pressing mechanism 31 for shaping, so as to facilitate the welding, cutting and production of the mask. The folding plate 13 is a triangular structure and faces the turning rod 33. The turning rod 33 is connected above the pressing mechanism 31.

[0029] The molding device 3 is also provided with a stand 35 connected to the frame, and slots 352 are provided on both sides of the stand 35. An adjusting roller 34 is provided in the center of the slot 352. A locking rod 351 for controlling the lifting and lowering of the adjusting roller 34 is connected to the top of the stand 35. One end of the locking rod 351 is movably connected to the adjusting roller 34, and the other end of the locking rod 351 is threadedly connected to the stand 35, so that the locking rod 351 can rotate above the stand 35, and the adjusting roller 34 can be lifted and lowered by the rotation of the locking rod 351, so as to control the tightness of the mask fabric during transportation in the molding device 3 by adjusting the height of the adjusting roller 34. The molding device 3 is provided with a plurality of pressing mechanisms 31, and an adjusting roller is provided between two adjacent mechanisms.

[0030] The moving block 315 in the press mechanism 31 is slidably connected to the side of the frame 311, and the outside of the moving block 315 is provided with a clamping strip 3141 connected to the frame 311. The center of the moving block 315 is movably connected with a pressing rod 314, and the pressing rod 314 is located above the clamping strip 3141 and penetrates the moving block 315. The two ends of the pressing rod 314 are provided with pressing grooves 3142 that match the clamping strip 3141. The side of the pressing rod 314 is connected with a handle 3143 for driving the pressing rod 314 to rotate, so that the clamping strip 314 41 can limit the lifting and lowering of the moving block 315 to avoid the possibility of the moving block 315 being separated from the frame 311, and allows the producer to press the handle 3143 to drive the pressure rod 314 to rotate. The rotation of the pressure rod 314 allows the pressure groove 3142 and the clamping strip 3141 to contact and cooperate 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 to the moving block 315 through the support of the clamping strip 3141, thereby increasing the gap between the pressure shaft 313 and the roller 312.

[0031] A second spring 317 connected to the second rotating rod 316 is arranged above the shift block 315, and a third spring 318 connected to the frame 311 is arranged below the shift block 315. The second spring 317 and the third spring 318 are arranged to increase the return effect of the shift block 315, so that the pressure rod 314 can lift the pressure shaft 313, thereby improving the clamping tightness and shaping effect of the pressure shaft 313 and the roller 312 on the mask fabric.

[0032] A motor 12 is connected to the bottom of the frame 1, and a transmission shaft 121 is connected to the motor 12 for driving the cloth feeding wheel 11, the cutting mechanism 2, the welding mechanism 4, the pressing mechanism 31 and the pressing mechanism 32 to rotate. The transmission shaft 121 is connected to the cloth feeding wheel 11, the driving shaft 26, the welding shaft 42, the pressing shaft 313 and the knife shaft 322. The cloth feeding wheel 11 is provided with two and is driven by a chain to each other, so that 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 mechanism 32 through the transmission shaft 121 to transport, weld, shape and cut the nose bridge strip and the mask cloth.

[0033] The mask production machine first allows the multi-layer mask fabric to be fed into the front of the cutting mechanism 2 through the cloth feeding wheel 11, and the nose bridge strip is stored through the material wheel 28, and one end of the nose bridge strip is fed into the mold frame 23 through the clamping rod 22 and the roller 221. The producer controls the conveying length of the nose bridge strip by adjusting the contact area between the cam 261 and the clamping rod 22, that is, the driving shaft 26 drives the cam 261 to rotate, and the contact between the cam 261 and the clamping rod 22 drives the clamping rod 22 and the roller 221 to convey the nose bridge strip in real time; intermittently feed the nose bridge strip into the material trough 231 in the center of the mold frame 23 through the guide rail 27, so that the pressure The cylinder 24 drives the cutter 241 to cut the nose bridge strip, and the cut nose bridge strip falls into the push groove 232, and the push cylinder 25 drives the push plate 251 to push the nose bridge strip in the push groove 232 into the multi-layer mask fabric; wherein the producer can drive the roller 221 to lift and lower by rotating the first rotating rod 223 to control the gap between the clamping rod 22 and the roller 221, and the first spring 222 between the roller 221 and the first rotating rod 223 is convenient for controlling the clamping and conveying of the nose bridge strip by the clamping rod 22 and the roller 221; at the same time, the mask fabric inlaid with the nose bridge strip is input into the welding machine in front of the cutting mechanism 2 In the structure 4, the welding shaft 42 and the welding head 43 in the welding mechanism 4 are used to weld the fabric around the bridge of the nose in the mask fabric, that is, the welding head 43 is driven by the transmitter 44 to melt and connect the multi-layer mask fabric, so that the bridge of the nose can be restricted and fixed in the mask fabric, and the gap between the welding shaft 42 and the welding head 43 can be adjusted by the fourth rotating rod 411, that is, when the fourth rotating rod 411 is rotated, the slider 421 can be driven to rise and fall, so that the slider 421 can synchronously drive the welding shaft 42 to rise and fall, and after adjusting the welding shaft 42 to a suitable height, the slider 421 is supported and fixed by the support rod 412 to avoid the slider from being moved up and down. The fourth spring 422 between the slider 421 and the bracket 41 is provided to automatically lift the slider 421 when the fourth rotating rod 411 is loosened, so that the manufacturer can adjust the lifting and lowering of the welding shaft 42; and the mask cloth with the bridge of the nose welded is continuously input to the folding plate 13 for preliminary bending, and is guided by the steering rod 33 so that the mask cloth is input to the pressing mechanism 31 of the forming device 3 for preliminary shaping, 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 producer can control the lifting and lowering of the shift block 315 and the pressing shaft 313 connected to the shift block 315 by rotating the second rotating rod 316. The second spring 317 and the third spring 318 arranged on the upper and lower sides of the shift block 315 allow the shift block 315 to have an automatic return effect, so that the pressing shaft 313 and the roller 312 can be separated immediately. When the producer presses the handle 3143, the pressing rod 314 is driven to rotate, and the rotation of the pressing rod 314 is used to control whether the pressing grooves 3142 at both ends of the pressing rod 314 cooperate with the clamping strip 3141. When the pressing grooves 3142 cooperate with the clamping strip 3141, the pressing shaft 313 and the roller 312 clamp and convey the mask fabric. When the pressing grooves 3142 are separated from the clamping strip 3141, the pressing shaft 313 is lifted to expand the pressure between the pressing shaft 313 and the roller 312. The spacing between the shafts 312 is convenient for the producer to operate and maintain; the mask fabric formed by the pressing mechanism 31 is input between the welding shaft 42 and the welding head 43 of the welding mechanism 4 for edge sealing of the mask, and the mask fabric after welding is input between the knife shaft 322 and the abutting shaft 323 of the pressing and cutting mechanism 32, and the cutter (not marked) connected to the surface of the knife shaft 322 is used to cut and separate the masks formed in the mask fabric to complete the full-automatic production and processing of the mask; another pressing mechanism 31 is provided between the welding mechanism 4 and the pressing and cutting mechanism 32 for pressing and flattening the mask, and an adjusting roller 34 is connected between the two adjacent mechanisms in the forming device 3 to adjust the tightness of the mask fabric, so as to improve the integrity and quality of the mask after forming and cutting. ;

[0034] The beneficial effects of the present invention are as follows: since a cam for intermittently driving the clamping rod to rotate is connected to the center of the driving shaft, and there are more than two cams, the user can control the conveying length of the clamping rod and the roller to the nose bridge strip by adjusting the contact area between the cam and the clamping rod, so that the cutter can cut the nose bridge strip input into the mold frame to a reasonable size, and there is no need for multiple sets of nose bridge strip cutting devices of different specifications to cut nose bridge strips of different sizes, which not only reduces the mechanical cost of the nose bridge strip cutting device, but also reduces the space occupied by conventional nose bridge strip assembly operations, making it convenient for producers to maintain the cutting mechanism, and also convenient for producers to adjust and cut the nose bridge strips of various specifications and sizes at any time, effectively improving the adjustment convenience of the nose bridge strip assembly operation, and increasing the mask debugging and production efficiency; and the side of the mold frame is provided with a useful A material trough for inputting the bridge of the nose strip is provided in front of the mold frame with a push groove located below the material trough, and a cutting groove penetrating the material trough and the push groove is provided above the mold frame, so that the cutting knife in the cutting groove can accurately cut the bridge of the nose strip in the material trough, and the cut bridge of the nose strip automatically falls into the push groove and is accurately transported to the mask fabric for packaging through the push plate, effectively improving the packaging accuracy and production quality of the bridge of the nose strip inside the mask; and the molding device is provided with a pressing mechanism, a fusion welding mechanism and a pressing and cutting mechanism, so that the mask fabric can be quickly shaped by the pressing shaft and roller in the pressing mechanism, the mask edge is sealed by the welding shaft and the welding head, and the mask is separated and cut in the mask fabric by the knife shaft and the resisting shaft, which is convenient for fully automated molding and cutting of the mask, and effectively improves the production efficiency and production convenience of the mask.

[0035] The embodiments of the present invention are 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, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A mask production machine, comprising a frame, a cloth feeding wheel connected to the frame for conveying cloth, a cutting mechanism for conveying and cutting nose bridge strips, and a forming device for processing and forming masks, characterized in that: The cutting mechanism includes a beam frame and a mold frame connected to the top of the beam frame, a pressure cylinder for cutting the bridge of the nose strip is connected to the top of the mold frame, a push cylinder for pushing the bridge of the nose strip is connected to the rear of the mold frame, and a driving shaft movably connected to the beam frame is arranged on the side of the mold frame, a clamping rod and a roller movably connected to the beam frame are arranged below the driving shaft, a cam for driving the clamping rod to rotate intermittently is connected in the center of the driving shaft, and a first rotary rod for controlling the lifting and lowering of the roller is threadedly connected to the bottom of the beam frame; the molding device includes a molding mechanism for pressing and shaping the mask, a molding mechanism for pressing and shaping the mask, and a molding mechanism for pressing and shaping the mask. The edge-sealing welding mechanism and the pressing mechanism for cutting and separating the mask, the pressing mechanism includes a mold frame, and a roller and a pressing shaft movably connected to the center of the mold frame, the two ends of the pressing shaft are provided with a moving block slidably connected to the mold frame, and the upper part of the mold frame is threadedly connected with a second rotary rod for controlling the lifting of the moving block, the pressing mechanism includes a tool holder, and a knife shaft arranged on the tool holder for cutting the mask, and a counter shaft located below the knife shaft and movably connected to the tool holder, the two ends of the knife shaft are connected with a shaft plate slidably matched with the tool holder, and the upper part of the tool holder is threadedly connected with a third rotary rod for controlling the lifting of the shaft plate; A material trough is arranged on the side of the mold frame, a push groove is arranged in front of the mold frame, and a cutting groove is arranged above the mold frame. The material trough is located above the push groove, and the cutting groove runs through the material trough and is connected to the push groove. A cutting knife connected to the pressure cylinder is arranged inside the cutting groove, and a push plate connected to the push cylinder is arranged inside the push groove. A fusion welding mechanism is connected to the front of the mold frame and the molding device, and the fusion welding mechanism includes a bracket and a transmitter connected to the bottom of the bracket. A welding shaft and a welding head are arranged in the center of the bracket, and the welding head is arranged above the transmitter. Sliders are movably connected to both ends of the welding shaft, and the slider is 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 to the top of the bracket, and a support rod for supporting the slider is threadedly connected to the bottom of the bracket.

2. A mask production machine according to claim 1, characterized in that: The center of the driving shaft is detachably connected with more than two cams, and both ends of the roller are movably connected with beam blocks, which are slidably connected to the center of the beam frame, and a first spring is connected between the beam block and the first rotary rod.

3. A mask production machine according to claim 2, characterized in that: A material wheel for storing nose bridge strips is connected to the side of the beam frame, a guide rail is connected to the center of the beam frame, a guide groove is arranged in the center of the guide rail, one end of the guide groove is located between the clamping rod and the abutting roller, and the other end of the guide groove is connected to the material trough.

4. A mask production machine according to claim 1, characterized in that: A folding plate for preliminarily folding and pressing the mask is arranged between the molding device and the mold frame, the folding plate is connected to the frame, a steering rod is connected to the front of the molding mechanism, and the steering rod is located below the folding plate.

5. A mask production machine according to claim 1, characterized in that: The forming device is also provided with a vertical frame connected to the frame, and slots are provided on both sides of the vertical frame. An adjusting roller is provided in the center of the slot. A locking rod for controlling the lifting and lowering of the adjusting roller is connected to the top of the vertical frame. One end of the locking rod is movably connected to the adjusting roller, and the other end of the locking rod is threadedly connected to the vertical frame.

6. A mask production machine according to claim 1, characterized in that: The moving block in the pressing mechanism is slidably connected to the side of the molding frame, and a clamping strip connected to the molding frame is arranged on the outside of the moving block. A pressure rod is movably connected to the center of the moving block. The pressure rod is located above the clamping strip and passes through the moving block, and pressure grooves matching the clamping strip are arranged at both ends of the pressure rod. A handle for driving the pressure rod to rotate is connected to the side of the pressure rod.

7. A mask production machine according to claim 6, characterized in that: A second spring connected to the second rotating rod is arranged above the moving block, and a third spring connected to the frame is arranged below the moving block.

8. A mask production machine according to claim 1, characterized in that: A motor is connected below the frame, and a transmission shaft is connected to the motor for driving the cloth feeding wheel, the cutting mechanism, the welding mechanism, the pressing mechanism and the pressing and cutting mechanism to rotate.

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