A mask body film making machine

Abstract

The invention relates to the technical field of mask machines, and in particular to a mask sheet making machine, comprising a frame, a pre-folding device, a cloth folding device, a nose bridge strip conveying device, a mask forming and welding device and a transition conveying device which are installed on the frame and arranged in sequence; the pre-folding device comprises two pre-folding forming rollers which are arranged correspondingly up and down for performing preliminary folding on the mask, and each pre-folding forming roller is provided with a plurality of parallel convex teeth; the cloth enters the nose bridge strip conveying device to realize hemming and binding, and the nose bridge strip cutter of the nose bridge cutter wheel group cuts the nose bridge strip to a fixed length and then introduces it into the binding cloth, so that the nose bridge strip and the cloth are matched; the cloth is unwound and pulled by the rotation of a first pulling roller group and a second pulling roller, and the cloth enters the edge sealing flower roller group and the flower roller group of the forming and welding device, and is turned on by ultrasonic generators directly below them, and the edge sealing flower roller group and the flower roller group rotate to pull the cloth forward to realize cloth welding.

Description

Technical Field

[0001] The present invention relates to the technical field of mask machines, and in particular to a mask sheet making machine. Background Art

[0002] When a mask machine is producing masks, the mask fabric needs to be cut first. Existing mask fabrics are placed on reels and cut manually. Since masks are produced continuously, manual cutting of mask fabrics not only takes more time, but also makes the overall mask production efficiency low. Summary of the invention

[0003] The purpose of the present invention is to provide a mask body sheet making machine with high production efficiency in view of the deficiencies in the prior art.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A mask sheet making machine is provided, comprising a frame, a pre-folding device, a cloth folding device, a nose bridge strip conveying device, a mask forming and welding device and a transition conveying device which are installed on the frame and arranged in sequence; the pre-folding device comprises two pre-folding forming rollers which are arranged correspondingly up and down for performing preliminary folding on the mask, each of which is provided with a plurality of parallel convex teeth, the convex teeth of the two pre-folding forming rollers are in meshing shape, and the rotation directions of the two pre-folding forming rollers are opposite; the cloth folding device comprises at least three folding plates stacked up and down, which are a first folding plate, a second folding plate and a third folding plate, the first folding plate, the second folding plate and the third folding plate are all divided into two, and the dividing lines of the three folding plates are staggered; the nose bridge strip conveying device comprises The invention comprises an installation base plate, and a folding assembly installed on the installation base plate for folding the two sides of the mask, and a cutting frame group for cutting the bridge of the nose; the mask forming and welding device comprises two side plates, and the two side plates are parallel and fixed to the upper surface of the workbench on the frame at intervals. The mask forming and welding device comprises an edge banding flower roller group, a flower roller group, a cutting knife roller group, a discharge roller group for facilitating the discharge of the mask fabric, and a first edge banding ultrasonic welding mechanism and a second edge banding ultrasonic welding mechanism installed on the frame, the first edge banding ultrasonic welding mechanism is located below the edge banding flower roller group, and the second edge banding ultrasonic welding mechanism is located below the flower roller group. The edge banding flower roller group comprises a flower roller core shaft hinged to the two side plates and a sleeve Two first edge-sealing flower rollers are arranged at intervals outside the flower roller core shaft, each of the first edge-sealing flower rollers is provided with a first edge-sealing convex tooth annularly distributed on the outside of the first edge-sealing flower roller, the first edge-sealing ultrasonic welding mechanism includes a first ultrasonic generator connected in sequence from bottom to top, a first transducer connected to the first ultrasonic generator, and a first welding head connected to the top of the first transducer and converting electrical energy into high-frequency vibration mechanical energy through the first transducer, the first welding head is arranged corresponding to the first edge-sealing convex tooth; the flower roller group includes a flower roller core shaft hinged to two side plates, and a second edge-sealing flower roller sleeved outside the flower roller core shaft, the second edge-sealing flower roller is provided with a second edge-sealing convex tooth extending along its length direction, the second edge-sealing The ultrasonic welding mechanism includes a second ultrasonic generator connected in sequence from bottom to top, a second transducer connected to the second ultrasonic generator, and a second welding head connected to the top of the second transducer and converting electrical energy into high-frequency vibration mechanical energy through the second transducer. The second welding head is arranged corresponding to the second edge sealing convex teeth. The cutting roller group includes a cutting roller and a knife pad roller which are distributed up and down and hinged to two side plates at both ends. The mask fabric can pass through the gap between the cutting roller and the knife pad roller, and the cutting roller is provided with a cutting knife for cutting the mask fabric; the transition conveying device is located at the outlet of the mask forming welding device, and the transition conveying device includes a round belt for conveying the mask and a reduction motor capable of driving the round belt transmission.

[0006] Among them, the pre-folding device also includes a pre-folding mounting frame fixedly connected to the upper surface of the frame, the pre-folding mounting frame is provided with a plurality of cloth guide wheels arranged in sequence for guiding the cloth forward, the pre-folding forming roller is located on one side of the cloth guide wheel and the pre-folding forming roller is installed on the pre-folding mounting frame.

[0007] Among them, a pad for adjusting the gap between adjacent folding plates is provided between the first folding plate, the second folding plate and the third folding plate, and the folding plates corresponding to the other set of insert mechanisms are adjusted by a folding adjustment seat installed in the folding fixing seat groove.

[0008] Among them, the folding assembly includes two parallel cloth folding pieces and a cloth pressing plate located between the two cloth folding pieces, the bottom of the cloth folding piece is fixedly connected to the mounting base plate, the upper end of the cloth folding piece is at a certain angle to the mounting base plate, and a gap is provided between the cloth pressing plate and the mounting base plate to facilitate the passage of mask cloth; the angle between the upper end of the cloth folding piece and the mounting base plate is less than or equal to ninety degrees.

[0009] Wherein, the cutting knife frame group includes a cutting knife frame and a slider adjustment seat fixedly connected to the upper surface of the mounting base plate, the slider adjustment seat is arranged at the right position on the mounting base plate, the cutting knife frame is fixed to the inner side position of the slider adjustment seat by a connecting plate and the cutting knife frame is located on the upper surface of the cloth pressing plate, the nose bridge strip conveying device also includes a nose bridge guide sleeve, and the nose bridge guide sleeve is fixed to the discharge end of the upper side of the cutting knife frame by a fixing rod; the slider adjustment seat includes a slider seat and an adjustment plate connected to the top of the slider seat, two slide grooves are arranged between the slider adjustment plate and the slider seat, and the top of each slide groove is provided with an adjustment for adjusting the height in the slide groove A screw rod, a nose bridge feeding wheel group and a nose bridge cutting wheel group are arranged on the slider adjustment seat, the nose bridge feeding wheel group and the nose bridge cutting wheel group are connected by gear transmission, the nose bridge cutting wheel group and the nose bridge feeding wheel group are respectively installed in two slide grooves, a positioning sleeve is arranged on the slide seat of the nose bridge cutting wheel group, a mold compression spring and a movable sleeve are arranged on the slide seat of the nose bridge feeding wheel group, the positioning sleeve is supported by the adjusting screw and the cutting gap of the nose bridge cutting wheel group is adjusted, the compression amount of the mold compression spring is adjusted by supporting the movable sleeve with the adjusting screw, and the gap between the nose bridge feeding wheel and the bearing mounted on the cutting frame is adjusted, thereby adjusting the size of its dynamic friction force.

[0010] Among them, the nose bridge feeding wheel group includes a sliding seat, a bearing, a feeding shaft, a nose bridge feeding wheel, a spacer and a feeding gear. The feeding shaft is fixed in the inner holes on both sides of the sliding seat by means of matching bearings. The inner end of the feeding shaft close to the sliding block seat is equipped with a nose bridge feeding wheel, and the outer end of the feeding shaft close to the sliding block seat is installed with a feeding gear through a spacer; the nose bridge cutting wheel group includes a sliding seat, a bearing, a cutting shaft, a nose bridge cutting wheel, a nose bridge strip cutting knife, a spacer, a cutting gear and a sprocket. The cutting shaft is fixed in the inner holes on both sides of the sliding seat by means of matching bearings. The inner end of the cutting shaft close to the sliding block seat is equipped with a nose The nose bridge strip cutting wheel, the nose bridge strip cutting knife is fixed in the groove of the nose bridge cutting wheel by a fixing screw, the cutting gear is installed at the outer end of the cutting shaft close to the slider seat through a spacer, the cutting gear is aligned with the side of the transition gear and the feeding gear, and a sprocket is installed at the tail of the outer end of the cutting shaft close to the slider seat; the nose bridge strip conveying device also includes a transition gear group, the transition gear group includes an adjusting seat, a bearing and a transition gear, the transition gear is fixed on the shaft of the adjusting seat through a bearing, the transition gear group is installed in the transition middle position of the nose bridge feeding wheel group and the nose bridge cutting wheel group, and is fixed on the outer side of the slider seat.

[0011] Among them, the mask forming and welding device also includes a first pulling roller group, a second pulling roller group and a discharge roller group, the first pulling roller group is located between the edge banding flower roller group and the flower roller group, the second pulling roller group is located between the flower roller group and the cutting knife roller group, the first pulling roller group and the second pulling roller group both include a first pulling roller and a second pulling roller distributed up and down, and the gap between the first pulling roller and the second pulling roller is adjusted by an adjusting screw; the discharge roller group is located at the outlet end of the cutting knife roller group, the discharge roller group includes an adjusting screw, a first discharge roller and a second discharge roller distributed up and down, the lower end of the adjusting screw is provided with a spring compression sleeve, a mold compression spring and a spring positioning sleeve, and the gap between the first discharge roller and the second discharge roller is adjusted by compressing the mold compression spring by the adjusting screw.

[0012] Wherein, the transition conveying device includes a main frame, which is composed of a left plate, a right plate, a cushion sleeve, a feed wheel shaft and a discharge plate. The reduction motor is fixed to the outer side of the left plate through a motor connecting plate, and the left plate is provided with a speed regulator mounting plate for mounting the speed regulator. The reduction motor output shaft is mounted with a main synchronous wheel, and the reduction motor output shaft is mounted with a main synchronous wheel and a small synchronous wheel. The main synchronous wheel transmits torque and speed to the small synchronous wheel through a synchronous belt. The small synchronous wheel is coaxially mounted with the second feed wheel and the first pulley. The second feed wheel is connected to the driven pulley through a flat belt. The driven pulley is mounted at the lower right of the second feed wheel, leaving a small movement gap with the discharge plate, and a first pulley and a second pulley are mounted at the upper right of the first pulley, and A first pulley coaxial with the second feeding wheel, and a second pulley installed on the same straight line of the right side plate, the first pulley and the second pulley are connected through the round belt, and another first pulley is installed at the lower left of the second pulley and the tight edge of the outer side of the round belt, so that the rotation direction of this first pulley and the first pulley coaxial with the second feeding wheel are opposite; the counter-rotating first pulley is coaxially installed with the third feeding wheel, and the fourth feeding wheel is installed at the lower right of the third feeding wheel and above the discharge plate, leaving a gap between the discharge plate and the discharge mask, and close to the output end; the discharge plate is installed at the lower right of the driven pulley, below the fourth feeding wheel, and on the right end side of the output end, the first feeding wheel is connected to the second discharge roller of the forming section of the mask body machine with a round belt, and a tensioning wheel is arranged on the inner side of the loose edge of the round belt connected to the end of the second discharge roller.

[0013] Among them, it also includes a material pushing device, which is located between the cloth folding device and the nose bridge strip conveying device. The material pushing device includes a supporting adjustment rod and a cloth pushing shaft. The bottom of the supporting adjustment rod is fixedly connected to the frame, and the top of the supporting adjustment rod is connected to the cloth pushing shaft. Two supporting adjustment rods are provided, and the cloth pushing shaft connects the two supporting adjustment rods. The outer sleeve of the cloth pushing shaft is provided with a cloth pushing roller in contact with the mask cloth, and the cloth pushing roller is hinged to the cloth pushing shaft.

[0014] Among them, the frame includes a frame body and a work table fixedly connected to the top of the frame body, and the pre-folding device, cloth folding device, nose bridge strip conveying device, mask forming and welding device and transition conveying device are all installed on the work table.

[0015] The beneficial effects of the present invention are as follows: the cloth enters the nose bridge strip conveying device to realize folding and hemming, the nose bridge strip cutter of the nose bridge cutting wheel group cuts the nose bridge strip to a fixed length and then introduces it into the hemming cloth to realize the matching of the nose bridge strip and the cloth; the cloth is unwound and pulled by the rotational movement of the first pulling roller group and the second pulling roller, the cloth enters the edge sealing flower roller group and the flower roller group of the forming welding device, and is turned on by the ultrasonic generator directly below each of them, the edge sealing flower roller group and the flower roller group rotate to pull the cloth forward to realize cloth welding, complete the pressing and forming of the upper and lower patterns of the cloth and the pressing and forming of the left and right patterns of the cloth, the cloth passes through the second pulling roller group and enters the cutting roller group, and is cut into mask sheets by the blades of the cutting roller group, and mechanical automatic cutting is adopted, so that the cutting efficiency is higher, the precision is more accurate and the labor cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the mask body sheet making machine of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the cloth folding device of the mask body sheet making machine of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the ejecting device of the mask body sheet making machine of the present invention.

[0020] Figure 4 This is a structural schematic diagram of an angle of the nose bridge strip conveying device of the mask body sheet making machine of the present invention.

[0021] Figure 5 This is a schematic structural diagram of the nose bridge strip conveying device of the mask body sheet making machine of the present invention from another angle.

[0022] Figure 6 It is a structural schematic diagram of the nose bridge cutting wheel group of the mask body sheet making machine of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the transition gear set of the mask body sheet making machine of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the nose bridge feeding wheel group of the mask body sheet making machine of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the mask forming and welding device of the mask body sheet making machine of the present invention.

[0026] Fig.10 It is a structural schematic diagram of the edge sealing roller group of the mask body sheet making machine of the present invention.

[0027] Fig.11 It is a structural schematic diagram of the pattern roller group of the mask body sheet making machine of the present invention.

[0028] Fig.12 It is a structural schematic diagram of the cutting roller group of the mask body sheet making machine of the present invention.

[0029] Fig.13 It is a structural schematic diagram of the first edge-sealing ultrasonic welding mechanism of the mask body sheet-making machine of the present invention.

[0030] Fig.14 It is a schematic structural diagram of the transition conveying device of the mask body sheet making machine of the present invention.

[0031] Figures 1 to 14 Included:

[0032] Frame 1, frame body 11, work table 12, pre-folding device 2, pre-folding forming roller 21, convex teeth 22, cloth guide wheel 23, pre-folding mounting frame 24, cloth folding device 3, first cloth folding plate 31, second cloth folding plate 32, third cloth folding plate 33, cloth folding fixing seat 34, pad 35, folding step adjustment seat 36, nose bridge conveying device 4, installation bottom plate 41, folding component 42, cloth folding piece 421, cloth pressing plate 422, cutting frame 431, slider seat 433, adjustment plate 434, slide 435, nose guide sleeve 436, fixing rod 437, nose feed wheel set 44, mold compression spring 441, movable sleeve 442, slide seat 443, bearing 444, feed shaft 445, nose feed wheel 446, spacer sleeve 447, feed gear 448, nose cutter wheel set 45, positioning sleeve 451, slide seat 452, bearing 453, cutter shaft 454, nose cutter wheel 455, nose strip cutter 456, spacer sleeve 457, cutter gear 458, Sprocket 459, transition gear set 46, adjustment seat 461, bearing 462, transition gear 463, mask forming welding device 5, side plate 51, edge banding flower roller set 52, flower roller core shaft 521, first edge banding flower roller 522, first edge banding convex tooth 523, flower roller set 53, flower roller core shaft 531, second edge banding flower roller 532, second edge banding convex tooth 533, cutter roller set 54, cutter roller 541, knife pad roller 542, cutter 543, positioning sleeve 544, discharge roller set 55 , the first edge sealing ultrasonic welding mechanism 56, the first ultrasonic generator 561, the first transducer 562, the first welding head 563, the second edge sealing ultrasonic welding mechanism 57, the first pulling roller group 58, the second pulling roller group 59, the transition conveying device 6, the main frame 61, the discharge plate 62, the reduction motor 63, the main synchronous wheel 64, the small synchronous wheel 65, the synchronous belt 66, the flat belt 67, the speed regulator 68, the top material device 7, the support adjustment rod 71, the top cloth shaft 72, and the top cloth roller 73. DETAILED DESCRIPTION

[0033] The present invention is further described in conjunction with the following examples.

[0034] A specific implementation of a mask body sheet making machine of the present invention is as follows: Figure 1-Figure 14 As shown, it includes a frame 1, a pre-folding device 2, a cloth folding device 3, a nose bridge strip conveying device 4, a mask forming and welding device 5, a transition conveying device 6 and a feeding device 7 which are installed on the frame 1 and arranged in sequence. The frame 1 includes a frame body 11 and a workbench 12 fixedly connected to the top of the frame body 11, and the pre-folding device 2, the cloth folding device 3, the nose bridge strip conveying device 4, the mask forming and welding device 5 and the transition conveying device 6 are all installed on the workbench 12.

[0035] The pre-folding device 2 includes two pre-folding forming rollers 21 correspondingly arranged above and below for making preliminary folds on the mask, each pre-folding forming roller 21 is provided with a plurality of parallel convex teeth 22, the convex teeth 22 of the two pre-folding forming rollers 21 are in meshing shape, and the rotation directions of the two pre-folding forming rollers 21 are opposite. The pre-folding device 2 also includes a pre-folding mounting frame 24 fixedly connected to the upper surface of the frame 1, the pre-folding mounting frame 24 is provided with a plurality of cloth guide wheels 23 arranged in sequence for guiding the cloth to move forward, the pre-folding forming roller 21 is located on one side of the cloth guide wheel 23 and the pre-folding forming roller 21 is installed on the pre-folding mounting frame 24.

[0036] A folding device 3 and a feeding device 7 are provided on one side of the pre-folding device 2. The folding device 3 and the feeding device 7 are spaced apart. The folding device 3 includes at least three folding plates stacked up and down, namely, a first folding plate 31, a second folding plate 32 and a third folding plate 33. The first folding plate 31, the second folding plate 32 and the third folding plate 33 are divided into two, forming two sets of plug-in mechanisms. The dividing lines of the three folding plates are staggered. The first folding plate 31, the second folding plate 32 and the third folding plate 33 are fixed on the workbench 12 through a folding fixing seat 34. A pad 35 for adjusting the gap between adjacent folding plates is provided between the first folding plate 31, the second folding plate 32 and the third folding plate 33, and the gap between the folding plates corresponding to the other set of plug-in mechanisms is adjusted through a folding adjustment seat installed in the groove of the folding fixing seat 34.

[0037] The material pushing device 7 is located between the cloth folding device 3 and the nose bridge strip conveying device 4, and the material pushing device 7 includes a supporting adjustment rod 71 and a cloth pushing shaft 72. The bottom of the supporting adjustment rod 71 is fixedly connected to the frame 1, and the top of the supporting adjustment rod 71 is connected to the cloth pushing shaft 72. There are two supporting adjustment rods 71, and the cloth pushing shaft 72 connects the two supporting adjustment rods 71. The outer sleeve of the cloth pushing shaft 72 is provided with a cloth pushing roller 73 in contact with the mask cloth, and the cloth pushing roller 73 is hinged to the cloth pushing shaft 72.

[0038] The nose bridge strip conveying device 4 and the feeding device 7 are arranged at a distance, and the nose bridge strip conveying device 4 includes a mounting base plate 41, and a folding assembly 42 installed on the mounting base plate 41 for folding the two sides of the mask, and a cutting frame group for cutting the nose bridge strip. The folding assembly 42 includes two parallel cloth folding pieces 421 and a cloth pressing plate 422 located between the two cloth folding pieces 421, the bottom of the cloth folding piece 421 is fixedly connected to the mounting base plate 41, and the upper end of the cloth folding piece 421 forms a certain angle with the mounting base plate 41, and the angle between the upper end of the cloth folding piece 421 and the mounting base plate 41 is less than or equal to ninety degrees, which is convenient for folding the side of the mask cloth, and a gap is provided between the cloth pressing plate 422 and the mounting base plate 41 to facilitate the passage of the mask cloth.

[0039] The cutting frame group includes a cutting frame 431 and a slider adjustment seat fixedly connected to the upper surface of the mounting base 41, the slider adjustment seat is arranged on the right side of the mounting base 41, the cutting frame 431 is fixed to the inner side of the slider adjustment seat through a connecting plate, and the cutting frame 431 is located on the upper surface of the cloth pressing plate 422, the nose bridge strip conveying device 4 also includes a nose bridge guide sleeve (not shown), and the nose bridge guide sleeve is fixed to the discharge end of the upper side of the cutting frame 431 through a fixing rod; the slider adjustment seat includes a slider seat 433 and an adjustment plate 434 connected to the top of the slider seat 433, two slide grooves 435 are arranged between the slider adjustment plate 434 and the slider seat 433, and each slide groove 435 is provided with a top for adjusting the height of the inner side of the slide groove 435 The slide adjustment seat is provided with a nose bridge feeding wheel set 44 and a nose bridge cutting wheel set 45, the nose bridge feeding wheel set 44 and the nose bridge cutting wheel set 45 are connected by gear transmission, the nose bridge cutting wheel set 45 and the nose bridge feeding wheel set 44 are respectively installed in two slide grooves 435, the slide seat of the nose bridge cutting wheel set 45 is provided with a positioning sleeve 451, the slide seat of the nose bridge feeding wheel set 44 is provided with a mold compression spring 441 and a movable sleeve 442, the positioning sleeve 451 is supported by the adjusting screw to adjust the cutting gap of the nose bridge cutting wheel set 45, the compression amount of the mold compression spring 441 is adjusted by the adjusting screw to support the movable sleeve, and the gap between the nose bridge feeding wheel and the bearing installed on the cutting frame 431 is adjusted, so as to adjust the size of its dynamic friction. The cloth pressing plate 422 is located in the middle of the nose bridge feeding wheel set 44 and the nose bridge cutting wheel set 45.

[0040] The nose bridge feeding wheel assembly 44 includes a slide seat 443, a bearing 444, a feeding shaft 445, a nose bridge feeding wheel 446, a spacer 447 and a feeding gear 448. The feeding shaft 445 is fixed in the inner holes on both sides of the slide seat 443 by means of a matching bearing. The inner end of the feeding shaft 445 close to the slider seat 433 is provided with a nose bridge feeding wheel 446, and the outer end of the feeding shaft 445 close to the slider seat 433 is provided with a feeding gear 448 spaced by a spacer 447; the nose bridge cutting wheel assembly 45 includes a slide seat 452, a bearing 453, a cutting shaft 454, a nose bridge cutting wheel 455, a nose bridge strip cutting knife 456, a spacer 457, a cutting gear 458 and a sprocket 459. The cutting shaft 454 is fixed in the inner holes on both sides of the slide seat 443 by means of a matching bearing 453. The cutting shaft 454 close to the slider seat 433 is provided with a nose bridge feeding wheel 446. The inner end of the nose bridge strip conveying device 4 is provided with a nose bridge cutting wheel 455, and the nose bridge strip cutting knife 456 is fixed in the groove of the nose bridge cutting wheel 455 by a set screw, and the cutting shaft 454 is close to the outer end of the slider seat 433 and the cutting gear 458 is installed through a spacer, and the cutting gear 458 is aligned with the side of the transition gear 463 and the feeding gear 448. The cutting shaft 454 is close to the outer end of the slider seat 433 and the tail is provided with a sprocket 459; the nose bridge strip conveying device 4 also includes a transition gear group 46, and the transition gear group 46 includes an adjusting seat 461, a bearing 462 and a transition gear 463, and the transition gear 463 is fixed on the shaft of the adjusting seat 461 through the bearing 462, and the transition gear group 46 is installed in the transition middle position of the nose bridge feeding wheel group 44 and the nose bridge cutting wheel group 45, and is fixed on the outer side of the slider seat 433.

[0041] The mask forming and welding device 5 includes two side plates 51, and the two side plates 51 are parallel and fixed at intervals on the upper surface of the workbench on the frame 1. The mask forming and welding device 5 includes an edge banding roller group 52, a flower roller group 53, a cutting roller group 54, a discharge roller group 55 for discharging mask fabric, and a first edge banding ultrasonic welding mechanism 56 and a second edge banding ultrasonic welding mechanism 57 installed on the workbench 12 on the frame 1. The first edge banding ultrasonic welding mechanism 56 is located below the edge banding roller group 52, and the second edge banding ultrasonic welding mechanism 57 is located above the flower roller group 53. At the bottom, the edge banding roller group 52 includes a roller core shaft 521 hinged with the two side plates 51 and two first edge banding rollers 522 sleeved outside the roller core shaft 521, each of which is provided with a first edge banding convex tooth 523 annularly distributed on the outer side of the first edge banding roller 522. The first edge banding ultrasonic welding mechanism 56 includes a first ultrasonic generator 561 connected in sequence from bottom to top, a first transducer 562 connected to the first ultrasonic generator 561, and a first transducer 562 connected to the top of the first transducer 562 and converting electrical energy into high The first welding head 563 (only the first edge-sealing ultrasonic welding mechanism is taken as an example in the figure) is provided with the first welding head 563 and the first edge-sealing convex tooth 523, and the first transducer 562 is fixed to the lower bottom surface of the working table 12 of the mask body film-making machine through the vibrator mounting plate and the adjusting screw, and the first ultrasonic generator 561 is installed at the inner bottom of the frame 1 of the mask body film-making machine through the bracket; the flower roller group 53 includes a flower roller core shaft 531 hinged with two side plates, and a second edge-sealing flower roller 532 sleeved outside the flower roller core shaft 531, and the second edge-sealing flower roller 532 is provided with a The second edge-sealing convex tooth 533 extends in the length direction, and the second edge-sealing ultrasonic welding mechanism 57 includes a second ultrasonic generator connected in sequence from bottom to top, a second transducer connected to the second ultrasonic generator, and a second welding head connected to the top of the second transducer and converting electrical energy into high-frequency vibration mechanical energy through the second transducer. The second welding head is arranged corresponding to the second edge-sealing convex tooth 533, the second transducer is fixed to the lower bottom surface of the working table 12 of the mask body film making machine through a vibrator mounting plate and an adjusting screw, and the second ultrasonic generator is installed at the inner bottom of the frame 1 of the mask body film making machine through a bracket. The cutting roller group 54 includes a cutting roller 541 and a knife pad roller 542 which are distributed up and down and hinged to two side plates 51 at both ends. The mask fabric can pass through the gap between the cutting roller 541 and the knife pad roller 542, and the cutting roller 541 is provided with a cutting knife 543 for cutting the mask fabric. The cutting knife 543 extends along the length direction of the cutting roller 541. The cutting roller group 54 adjusts the depth of the cutting knife 543 by a screw and a positioning sleeve 451.

[0042] The mask forming and welding device 5 also includes a first pulling roller group 58 and a second pulling roller group 59. The first pulling roller group 58 is located between the edge banding flower roller group 52 and the flower roller group 53, and the second pulling roller group 59 is located between the flower roller group 53 and the cutting roller group 54. The first pulling roller group 58 and the second pulling roller group 59 both include a first pulling roller and a second pulling roller distributed up and down, and the gap between the first pulling roller and the second pulling roller is adjusted by an adjusting screw; the discharge roller group 55 is located at the outlet end of the cutting roller group 54, and the discharge roller group 55 includes an adjusting screw, a first discharging roller and a second discharging roller distributed up and down, and the lower end of the adjusting screw is provided with a spring compression sleeve, a mold compression spring and a spring positioning sleeve, and the gap between the first discharging roller and the second discharging roller is adjusted by compressing the mold compression spring by the adjusting screw.

[0043] The transition conveying device 6 is arranged at the exit position of the forming welding device. The transition conveying device 6 is fixed to the two inner sides of the two side plates of the forming welding device through a gasket and bolts, close to the side of the discharge roller group 55. The first feeding wheel of the transition conveying device 6 is connected to the first discharge roller of the forming welding device through a circular belt. The transition conveying device 6 includes a main frame 61, which is composed of a left side plate, a right side plate, a gasket, a feeding wheel shaft and a discharge plate 62. The reduction motor 63 is fixed to the outer side of the left side plate through a motor connecting plate, and the left side plate is provided with a speed regulator mounting plate to install the speed regulator 68. The output shaft of the reduction motor is equipped with a main synchronous wheel, and the output shaft of the reduction motor 63 is equipped with a main synchronous wheel 64 and a small synchronous wheel 65. The main synchronous wheel 64 transmits torque and speed to the small synchronous wheel 65 through a synchronous belt 66; the small synchronous wheel 65 is coaxially installed with the second feeding wheel and the first pulley, and the second feeding wheel is connected to the driven pulley through a flat belt 67. The driven pulley is installed at the lower right of the second feeding wheel, leaving a small movement gap with the discharge plate 62; a first pulley and a second pulley are installed at the upper right of the first pulley, and the first pulley coaxial with the second feeding wheel and the second pulley are installed On the same straight line of the right side plate, the first pulley is connected to the second pulley through a Φ3 round belt, and another first pulley is installed at the lower left of the second pulley and the tight outer side of the Φ3 round belt, so that the rotation direction of this first pulley is opposite to the first pulley coaxial with the second feeding wheel; the reverse rotating first pulley is coaxially installed with the third feeding wheel, and the fourth feeding wheel is installed at the lower right of the third feeding wheel and above the discharge plate 62, leaving a gap between the discharge mask and the discharge plate 62, and close to the output end; the discharge plate 62 is installed at the lower right of the driven pulley, below the fourth feeding wheel, and on the right side of the output end. The first feeding wheel is connected to the second discharge roller of the mask body machine forming section with a Φ6 round belt, and a tensioning wheel is set on the inner side of the loose edge of the Φ6 round belt connected to the end of the second discharge roller.

[0044] The above structure works as follows:

[0045] S1. After the cloth (the mask cloth mentioned above) passes over the top of the top cloth roller 73 to form tension, it enters the nose bridge strip conveying device 4 to realize folding and hemming. The nose bridge strip cutter 456 of the nose bridge cutter wheel group 45 cuts the nose bridge strip to a fixed length and then introduces it into the hemming cloth; the nose bridge strip is unwound and pulled by the rotation of the nose bridge feeding wheel 446 of the nose bridge feeding wheel group 44 of the nose bridge strip conveying device 4; the movement of the nose bridge feeding wheel group 44 on the nose bridge strip conveying device 4 is driven by the gear and transition gear group 46 on the nose bridge cutter wheel group 45, and the movement of the nose bridge cutter wheel group 45 is driven by the sprocket on the edge banding flower roller group 52 and the sprocket chain on the nose bridge cutter wheel group 45.

[0046] S2, the cloth is unwound and pulled by the rotation of the first pulling roller group 58 and the second pulling roller group 59, and the cloth enters the edge banding roller group 52 and the flower roller group 53 of the mask forming and welding device 5, and is turned on by the ultrasonic generator directly below each of them. The edge banding roller group 52 and the flower roller group 53 rotate and pull the cloth forward to achieve cloth welding, complete the upper and lower pattern pressing and forming of the cloth and the left and right pattern pressing and forming of the cloth, and the cloth passes through the second pulling roller group 59 and enters the cutter roller group 54, and is cut into mask sheets by the blade of the cutter roller group 54. Mechanical automatic cutting is adopted, so that the cutting efficiency is higher, the precision is more accurate and the labor cost is saved. The mask sheet is discharged through the friction transmission of the first discharge roller and the second discharge roller of the discharge roller group 55, and is transported to the transition conveying device 6 by the second discharge roller through a round belt.

[0047] S3. The power transmission system of the mask body making machine outputs torque and speed by a variable frequency gear reduction motor, and drives the first drawing roller group 58 and the second drawing roller group 59 to move through a chain transmission mechanism; the first drawing roller group 58 drives the edge banding flower roller group 52 to move through a gear transmission mechanism and a transition gear group 46; the movement of the flower roller group 53 and the cutting roller group 54 is driven by the gear transmission mechanism and the transition gear group 46 of the second drawing roller group 59; the movement of the discharge roller group 55 is driven by the sprocket chain transmission mechanism of the second drawing roller group 59.

[0048] S4, the second discharging roller conveys the mask sheet to the flat belt 67 of the transition conveying device 6 through a round belt. The mask sheet is clamped and conveyed by a belt under the power transmission of the flat belt conveyor belt and the round belt in the synchronous pulley transmission group and the reverse pulley idler. The mask sheet is thrown onto the tray of the tray conveying device of the ear band welding machine by inertia under high-speed motion at the discharging plate 62, and the next process begins.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A mask body making machine, characterized in that: The invention comprises a frame, a pre-folding device, a cloth folding device, a nose bridge strip conveying device, a mask forming and welding device and a transition conveying device which are installed on the frame and arranged in sequence; the pre-folding device comprises two pre-folding forming rollers which are arranged correspondingly up and down for making preliminary folds on the mask, each of which is provided with a plurality of parallel convex teeth, the convex teeth of the two pre-folding forming rollers are in meshing shape, and the rotation directions of the two pre-folding forming rollers are opposite; the cloth folding device comprises at least three cloth folding plates stacked up and down, which are a first cloth folding plate, a second cloth folding plate and a third cloth folding plate, the first cloth folding plate, the second cloth folding plate and the third cloth folding plate are all divided into two, and the dividing lines of the three cloth folding plates are staggered; the nose bridge strip conveying device comprises an installation base plate, and an installation base plate. A folding assembly for folding the two sides of the mask and a cutting frame group for cutting the nose bridge strip are installed on the installation base plate; the mask forming and welding device includes two side panels, the two side panels are parallel and fixed to the upper surface of the workbench on the frame at intervals, the mask forming and welding device includes an edge banding flower roller group, a flower roller group, a cutting knife roller group, a discharge roller group for facilitating the discharge of the mask fabric, and a first edge banding ultrasonic welding mechanism and a second edge banding ultrasonic welding mechanism installed on the frame, the first edge banding ultrasonic welding mechanism is located below the edge banding flower roller group, and the second edge banding ultrasonic welding mechanism is located below the flower roller group, the edge banding flower roller group includes a flower roller core shaft hinged to the two side panels and a flower roller core shaft sleeved on the flower roller group. Two first edge-sealing flower rollers are arranged at intervals outside the core shaft, each of the first edge-sealing flower rollers is provided with a first edge-sealing convex tooth annularly distributed on the outside of the first edge-sealing flower roller, the first edge-sealing ultrasonic welding mechanism includes a first ultrasonic generator connected in sequence from bottom to top, a first transducer connected to the first ultrasonic generator, and a first welding head connected to the top of the first transducer and converting electrical energy into high-frequency vibration mechanical energy through the first transducer, the first welding head is arranged corresponding to the first edge-sealing convex tooth; the flower roller group includes a flower roller core shaft hinged to two side plates, and a second edge-sealing flower roller sleeved outside the flower roller core shaft, the second edge-sealing flower roller is provided with a second edge-sealing convex tooth extending along its length direction, the second edge-sealing ultrasonic welding The connection mechanism includes a second ultrasonic generator connected in sequence from bottom to top, a second transducer connected to the second ultrasonic generator, and a second welding head connected to the top of the second transducer and converting electrical energy into high-frequency vibration mechanical energy through the second transducer. The second welding head is arranged corresponding to the second edge sealing convex teeth. The cutting roller group includes a cutting roller and a knife pad roller which are distributed up and down and hinged to two side plates at both ends respectively. The mask fabric can pass through the gap between the cutting roller and the knife pad roller, and the cutting roller is provided with a cutting knife for cutting the mask fabric; the transition conveying device is located at the outlet of the mask forming and welding device, and the transition conveying device includes a round belt for conveying the mask and a reduction motor capable of driving the round belt transmission.

2. A mask sheet making machine according to claim 1, characterized in that: The pre-folding device also includes a pre-folding mounting frame fixedly connected to the upper surface of the frame, the pre-folding mounting frame is provided with a plurality of cloth guide wheels arranged in sequence for guiding the cloth to move forward, the pre-folding forming roller is located on one side of the cloth guide wheel and the pre-folding forming roller is installed on the pre-folding mounting frame.

3. A mask sheet making machine according to claim 1, characterized in that: A pad for adjusting the gap between adjacent folding plates is provided between the first folding plate, the second folding plate and the third folding plate, and the gap between the folding plates corresponding to the other set of inserting mechanisms is adjusted by a folding adjusting seat installed in the folding fixing seat groove.

4. A mask sheet making machine according to claim 1, characterized in that: The folding assembly includes two parallel cloth folding pieces and a cloth pressing plate located between the two cloth folding pieces, the bottom of the cloth folding piece is fixedly connected to the mounting base plate, the upper end of the cloth folding piece forms a certain angle with the mounting base plate, and a gap is provided between the cloth pressing plate and the mounting base plate to facilitate the passage of mask cloth; the angle between the upper end of the cloth folding piece and the mounting base plate is less than or equal to ninety degrees.

5. A mask sheet making machine according to claim 1, characterized in that: The cutting knife frame assembly includes a cutting knife frame and a slider adjustment seat fixedly connected to the upper surface of the mounting base plate, the slider adjustment seat is arranged at the right position on the mounting base plate, the cutting knife frame is fixed to the inner side position of the slider adjustment seat by a connecting plate and the cutting knife frame is located on the upper surface of the cloth pressing plate, the nose bridge strip conveying device also includes a nose bridge guide sleeve, and the nose bridge guide sleeve is fixed to the discharge end of the upper side of the cutting knife frame by a fixing rod; the slider adjustment seat includes a slider seat and an adjustment plate connected to the top of the slider seat, two slide grooves are arranged between the adjustment plate and the slider seat, and an adjustment screw for adjusting the height in the slide groove is arranged at the top of each slide groove The slider adjustment seat is provided with a nose bridge feeding wheel group and a nose bridge cutting wheel group, the nose bridge feeding wheel group and the nose bridge cutting wheel group are connected by gear transmission, the nose bridge cutting wheel group and the nose bridge feeding wheel group are respectively installed in two slide grooves, a positioning sleeve is provided on the slide seat of the nose bridge cutting wheel group, a mold compression spring and a movable sleeve are provided on the slide seat of the nose bridge feeding wheel group, the positioning sleeve is supported by an adjusting screw and the cutting gap of the nose bridge cutting wheel group is adjusted, the compression amount of the mold compression spring is adjusted by supporting the movable sleeve with an adjusting screw, and the gap between the nose bridge feeding wheel and the bearing installed on the cutting frame is adjusted, thereby adjusting the size of its dynamic friction.

6. A mask sheet making machine according to claim 5, characterized in that: The nose bridge feeding wheel assembly comprises a sliding seat, a bearing, a feeding shaft, a nose bridge feeding wheel, a spacer sleeve and a feeding gear. The feeding shaft is fixed in the inner holes on both sides of the sliding seat by means of matching bearings. The inner end of the feeding shaft close to the slider seat is provided with the nose bridge feeding wheel, and the outer end of the feeding shaft close to the slider seat is provided with the feeding gear through the spacer sleeve. The nose bridge cutting wheel assembly comprises a sliding seat, a bearing, a cutting shaft, a nose bridge cutting wheel, a nose bridge strip cutting knife, a spacer sleeve, a cutting gear and a sprocket. The cutting shaft is fixed in the inner holes on both sides of the sliding seat by means of matching bearings. The inner end of the cutting shaft close to the slider seat is provided with the nose bridge cutting wheel. The cutter wheel and the nose bridge strip cutter are fixed in the groove of the nose bridge cutter wheel by means of a fixing screw, the cutter shaft is close to the outer end of the slider seat and the cutter gear is installed through a spacer, the cutter gear is aligned with the side of the transition gear and the feeding gear, and a sprocket is installed at the tail of the outer end of the cutter shaft close to the slider seat; the nose bridge strip conveying device also includes a transition gear group, which includes an adjusting seat, a bearing and a transition gear, and the transition gear is fixed on the shaft of the adjusting seat through a bearing, and the transition gear group is installed in the middle position of the transition between the nose bridge feeding wheel group and the nose bridge cutter wheel group, and is fixed on the outer side of the slider seat.

7. A mask sheet making machine according to claim 1, characterized in that: The mask forming and welding device also includes a first pulling roller group, a second pulling roller group and a discharge roller group. The first pulling roller group is located between the edge banding flower roller group and the flower roller group, and the second pulling roller group is located between the flower roller group and the cutting knife roller group. The first pulling roller group and the second pulling roller group both include a first pulling roller and a second pulling roller distributed up and down, and the gap between the first pulling roller and the second pulling roller is adjusted by an adjusting screw; the discharge roller group is located at the outlet end of the cutting knife roller group, and the discharge roller group includes an adjusting screw, a first discharge roller and a second discharge roller distributed up and down, and the lower end of the adjusting screw is provided with a spring compression sleeve, a mold compression spring and a spring positioning sleeve, and the gap between the first discharge roller and the second discharge roller is adjusted by compressing the mold compression spring with the adjusting screw.

8. A mask sheet making machine according to claim 1, characterized in that: The transition conveying device includes a main frame, which is composed of a left side plate, a right side plate, a cushion sleeve, a feed wheel shaft and a discharge plate. The reduction motor is fixed to the outer side of the left side plate through a motor connecting plate. The left side plate is provided with a speed regulator mounting plate for installing the speed regulator. The reduction motor output shaft is equipped with a main synchronous wheel. The reduction motor output shaft is equipped with a main synchronous wheel and a small synchronous wheel. The main synchronous wheel transmits torque and speed to the small synchronous wheel through a synchronous belt. The small synchronous wheel is coaxially installed with the second feeding wheel and the first pulley. The second feeding wheel is connected to the driven pulley through a flat belt. The driven pulley is installed at the lower right of the second feeding wheel, leaving a small movement gap with the discharge plate. A first pulley and a second pulley are installed at the upper right of the first pulley and are connected to the feed wheel. The first pulley is coaxial with the second feeding wheel, and the second pulley is installed on the same straight line of the right side plate. The first pulley is connected to the second pulley through the round belt, and another first pulley is installed at the lower left of the second pulley and the tight edge of the outer side of the round belt, so that the rotation direction of this first pulley and the first pulley coaxial with the second feeding wheel are opposite; the counter-rotating first pulley is coaxially installed with the third feeding wheel, and the fourth feeding wheel is installed at the lower right of the third feeding wheel and above the discharge plate, leaving a gap between the discharge mask and the discharge plate, and close to the output end; the discharge plate is installed at the lower right of the driven pulley, below the fourth feeding wheel, and on the right end side of the output end, the first feeding wheel is connected to the second discharge roller of the forming section of the mask body machine with a round belt, and a tensioning wheel is arranged on the inner side of the loose edge of the round belt connected to the end of the second discharge roller.

9. A mask sheet making machine according to claim 1, characterized in that: It also includes a material pushing device, which is located between the cloth folding device and the nose bridge strip conveying device. The material pushing device includes a support adjustment rod and a cloth pushing shaft. The bottom of the support adjustment rod is fixedly connected to the frame, and the top of the support adjustment rod is connected to the cloth pushing shaft. Two support adjustment rods are provided, and the cloth pushing shaft connects the two support adjustment rods. The outer sleeve of the cloth pushing shaft is provided with a cloth pushing roller in contact with the mask cloth, and the cloth pushing roller is hinged to the cloth pushing shaft.

10. A mask sheet making machine according to claim 1, characterized in that: The frame includes a frame body and a workbench fixedly connected to the top of the frame body, and the pre-folding device, the cloth folding device, the nose bridge strip conveying device, the mask forming and welding device and the transition conveying device are all installed on the workbench.

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