Automatic facial mask packaging machine and automatic packaging method

Abstract

The present invention provides an automatic facial mask packaging machine and an automatic packaging method, comprising an automatic bag preparation device, a transfer bag opening device, and a folding bag device. The automatic bag preparation device is used to store packaging bags and supply packaging bags to the transfer bag opening device, the transfer bag opening device is used to obtain packaging bags from the automatic bag preparation device, transfer the packaging bags to a bagging position, and open the bag mouth, and the folding bag device is used to fold the facial mask and send it into the packaging bag with the bag mouth opened. The transfer bag opening device comprises a fixed vertically arranged shaft sleeve, a rotating shaft rotatably arranged in the shaft sleeve, a driving member driving the rotating shaft to perform intermittent rotation, a cylindrical cam fixedly sleeved on the shaft sleeve, a rotating frame rotatably arranged on the shaft sleeve and connected to the rotating shaft, and a plurality of bag opening mechanisms arranged on the rotating frame at equal circumferential intervals. The bag opening mechanism is used to take out the packaging bags from the automatic bag preparation device, open the packaging bags, and send them to the bagging position.

Description

Technical Field

[0001] The invention relates to a packaging machine, in particular to an automatic facial mask packaging machine and an automatic packaging method. Background Art

[0002] With the improvement of living standards, facial masks have become a daily maintenance product for more and more girls, so the demand for facial masks is also increasing. The packaging process of facial masks can be roughly divided into folding, bagging, and bagging. The traditional packaging method uses manual folding and bagging, which greatly wastes manpower and time, or uses machines to operate each step independently, which saves time but still requires a lot of manpower and wastes costs. Summary of the invention

[0003] The main purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic mask packaging machine and automatic packaging method that combines folding, bag taking and bag filling, which saves mask packaging time, saves labor costs and improves production efficiency.

[0004] The present invention adopts the following technical solution:

[0005] An automatic facial mask packaging machine includes an automatic bag preparation device, a transfer bag opening device, and a folding bag device. The automatic bag preparation device is used to store packaging bags and supply packaging bags to the transfer bag opening device. The transfer bag opening device is used to obtain packaging bags from the automatic bag preparation device and transfer the packaging bags to a bagging position and open the bag mouth. The folding bag device is used to fold the facial mask and put it into the packaging bag with the bag mouth opened. The transfer bag opening device includes a fixed vertically arranged shaft sleeve, a rotating shaft rotatably arranged in the shaft sleeve, a driving member that drives the rotating shaft to rotate intermittently, a cylindrical cam fixedly sleeved on the shaft sleeve, and a cylindrical cam rotatably arranged on the shaft sleeve. A rotating frame connected to the rotating shaft and multiple bag opening mechanisms are arranged on the rotating frame at equal intervals around the circumference. Each bag opening mechanism includes a lifting frame, a first negative pressure suction cup, a transverse frame, a second negative pressure suction cup, and a bag opening cylinder. The lifting frame can be moved up and down between a bag opening position and a bag taking position on the rotating frame. The first negative pressure suction cup is arranged on the lifting frame. A cam bearing that cooperates with a cylindrical cam track groove is arranged on the lifting frame. The transverse frame can be movably arranged on the rotating frame relative to the lifting frame at the bag opening position. The second negative pressure suction cup is arranged on the transverse frame relative to the first negative pressure suction cup. The bag opening cylinder is connected to and drives the transverse frame to move.

[0006] Furthermore, the rotating frame includes an upper connecting plate, a lower connecting plate and multiple connecting plates, the upper connecting plate and the lower connecting plate are arranged relatively to each other up and down, the multiple connecting plates are vertically connected between the upper connecting plate and the lower connecting plate, and the upper connecting plate and the lower connecting plate are rotatably arranged on the shaft sleeve through bearings respectively.

[0007] Furthermore, the upper connecting plate and the lower connecting plate have the same shape and both have a plurality of protruding structures distributed at equal intervals around the circumference. The connecting plate is connected between the protruding structures of the upper connecting plate and the lower connecting plate, so that the rotating frame has protruding parts distributed at equal intervals around the circumference, and the bag opening mechanism is installed on the protruding parts.

[0008] Furthermore, a vertically arranged linear guide rail is provided on the inner side of the connecting plate, a clearance window is opened on the connecting plate, the rear end of the lifting frame is slidably matched with the linear guide rail, and the front end extends from the clearance window to the outside of the connecting plate, and the first negative pressure suction cup is arranged at the front end of the lifting frame.

[0009] Furthermore, the bag opening mechanism includes two bag opening cylinders, which are arranged in parallel and spaced apart on both sides of the protruding portion of the rotating frame, and the bag opening cylinders extend radially along the rotating shaft, and the transverse frame is connected between the piston rods of the two bag opening cylinders.

[0010] Furthermore, it also includes an air supply system for supplying air to the bag opening cylinder, the first negative pressure suction cup and the second negative pressure suction cup. The rotating shaft is axially penetrated to form a center hole. The air supply system includes an air supply pipe, a rotary joint and a negative pressure connecting chamber. The rotary joint is arranged at the lower end of the rotating shaft, and the negative pressure connecting chamber is arranged on the rotating frame. One end of the air supply pipe is connected to the rotary joint and the other end passes through the center hole of the rotating shaft and is connected with the negative pressure connecting chamber. The negative pressure connecting chamber supplies air to the bag opening cylinder, the first negative pressure suction cup and the second negative pressure suction cup through a branch pipe and a control valve.

[0011] Furthermore, the negative pressure communication chamber is an annular structure centered on the rotating shaft.

[0012] Furthermore, the automatic bag preparation device includes a base, a base movably arranged on the base leftward and rightward, a leftward and rightward moving mechanism driving the base to move leftward and rightward, two slides movably arranged on the base leftward and rightward and arranged, and a frontward and backward moving mechanism driving the slides to move forward and backward. Each slide is provided with a bag storage box, and the bag storage box includes two side plates, a push plate, and a push plate driving member. The two side plates are arranged leftward and rightward and extend frontward and backward. The push plate is movably arranged between the two side plates, and the push plate driving member drives the push plate to move forward and backward.

[0013] Furthermore, the folding and bagging device includes two mask conveyor belts, a first folding plate mechanism, a second folding plate mechanism, a third folding plate mechanism and a bagging mechanism. The two mask conveyor belts are connected and there is a gap. The first folding plate mechanism includes a first folding plate that can move up and down to pass through the gap and two first clamping plates for receiving the first folding plate and arranged at intervals. The first folding plate can fold the mask in half and insert it between the two first clamping plates; the second folding plate mechanism includes a second folding plate that can move left and right to pass through the two first clamping plates to fold the mask in half and two second clamping plates for receiving the second folding plate and arranged at intervals; the third folding plate mechanism includes a third folding plate that can move forward and backward to pass through the two second clamping plates to fold the mask in half, the bagging mechanism includes two clamps for receiving the third folding plate, the two clamps can move up and down between the receiving position and the bagging position, the first folding plate and the second folding plate are arranged vertically, and the first folding plate and the third folding plate are arranged parallel.

[0014] A facial mask automatic packaging method, for automatically folding and packaging finished facial masks into bags, comprising the following steps:

[0015] A. Fill the empty packaging bags into the automatic bag preparation device and adjust it to the appropriate position.

[0016] B. The bag transfer and opening device takes the packaging bag from the automatic bag preparation device and transfers the packaging bag to the bag filling position, and opens the bag mouth during the transfer process.

[0017] C. The mask is transported by a conveyor belt and then automatically folded by a folding bag device to meet bagging requirements.

[0018] D. The folded mask is automatically sent to the bagging position and bagged.

[0019] From the above description of the present invention, it can be seen that compared with the prior art, the beneficial effects of the present invention are: by arranging a transfer bag opening device, an automatic bag preparation device and a folding bag device to cooperate with each other, the packaging process of the facial mask is automatically packaged on an assembly line, saving labor costs and reducing production time; the bag opening mechanism is arranged at the discharging part of the rotating frame to avoid interference with the bag taking and opening process by other parts on the rotating frame, making the bag taking and opening process smoother; a center hole is formed on the rotating shaft, and the air supply pipe is connected to the negative pressure connecting chamber through the center hole, so that the air supply pipe will not be affected by the rotation of the rotating frame, thereby causing problems in the air supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial structural schematic diagram of a specific embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the transfer bag opening device of the present invention;

[0022] Figure 3 is a sectional view of the overall structure of the transfer bag opening device of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the automatic bag preparation device of the present invention;

[0024] Figure 5 is a structural cross-sectional view of the automatic bag preparation device of the present invention;

[0025] Figure 6 It is a side view of the overall structure of the automatic bag preparation device of the present invention;

[0026] Figure 7 It is a schematic diagram of the overall structure of the folding bagging device of the present invention;

[0027] Figure 8 is a top view of the overall structure of the folding bagging device of the present invention;

[0028] Fig. 9 The overall structure of the folding bagging device of the present invention is trying to;

[0029] Fig.10 is a side view of the overall structure of the folding bagging device of the present invention;

[0030] Fig.11 It is a schematic structural diagram of the linear module of the folding bagging device of the present invention.

[0031] In the figure: 1. bag transfer opening device, 10. base frame, 11. sleeve, 12. rotating shaft, 120. center hole, 121. bearing, 13. servo motor, 14. cylindrical cam, 15. rotating frame, 150. upper connecting plate, 151. lower connecting plate, 152. connecting plate, 153. linear guide rail, 154. protrusion, 155. circular connecting plate, 156. annular connecting seat, 16. bag opening mechanism, 160. lifting frame, 161. first negative pressure washing plate, 162. transverse frame, 163. second negative pressure suction cup, 164. bag opening cylinder, 165. cam bearing, 17. air supply system, 170. air supply pipeline, 171. rotary joint, 172. negative pressure connecting chamber, 173. control valve, 18. solenoid valve, 19. collector ring;

[0032] 2. Automatic bag preparation device, 20. Base, 200. Universal wheel, 21. Base, 22. Left and right moving mechanism, 220. First drive motor, 221a. First gear, 221b. First rack, 222. First linear guide, 23. Slide plate, 230. Guide groove, 24. Forward and backward moving mechanism, 240. Second drive motor, 241a. Second gear, 241b. Second rack, 242. Second linear guide, 25. Bag storage box, 250. Side plate, 251. Push plate, 252. Rodless cylinder, 253. Baffle;

[0033] 3. Folding and bagging device, 30. Mask conveyor belt, 31. First folding plate mechanism, 310. First folding plate, 311. First clamping plate, 312. First linear module, 32. Second folding plate mechanism, 320. Second folding plate, 321. Second clamping plate, 322. Second linear module, 33. Third folding plate mechanism, 330. Third folding plate, 331. Third clamping plate, 332. Third linear module, 34. Bagging mechanism, 340. Clamp, 341. Fourth linear module, 35. First positioning cylinder, 36. Second positioning cylinder, 37. Third positioning cylinder, 38. Fourth positioning cylinder.

[0034] A.Mold frame, B.Motor, C.Transmission belt, D.Guide column, E.Slider. DETAILED DESCRIPTION

[0035] The present invention is further described below through specific implementation modes.

[0036] refer to Figures 1 to 11 The present invention provides an automatic facial mask packaging machine and an automatic packaging method, including an automatic bag preparation device 2, a transfer bag opening device 1, and a folding bag device 3. The automatic bag preparation device 2 is used to store packaging bags and supply packaging bags to the transfer bag opening device 1. The transfer bag opening device 1 is used to obtain packaging bags from the automatic bag preparation device 2 and transfer the packaging bags to the bagging position and open the bag mouth. The folding bag device 3 is used to fold the facial mask and put it into the packaging bag with the bag mouth opened.

[0037] Please refer to Figure 2 and Figure 3The transfer bag opening device 1 includes a base frame 10, a sleeve 11 fixedly arranged vertically on the base frame 10, a rotating shaft 12 rotatably arranged in the sleeve 11, a servo motor 13 connected to the sleeve 11 by a bearing 121 and driving the rotating shaft 12 to rotate intermittently, a cylindrical cam 14 fixedly sleeved on the sleeve 11, a rotating frame 15 rotatably arranged on the sleeve 11 and connected to the rotating shaft 11, a plurality of bag opening mechanisms 16 connected to the sleeve 11 by a bearing 121 and arranged on the rotating frame 15 at equal intervals around the circumference, an air supply system 17, a plurality of solenoid valves 18 and a collector ring 19, the collector ring 19 supplies power to the solenoid valve 18, and the solenoid valve 18 controls the bag opening mechanism 16 of the device. Electrical components, each bag opening mechanism 16 includes a lifting frame 160, a first negative pressure suction cup 161, a transverse frame 162, a second negative pressure suction cup 163, and a bag opening cylinder 164. The lifting frame 160 can be arranged on the rotating frame 15 to be movable up and down between the bag opening position and the bag taking position. The first negative pressure suction cup 161 is arranged on the lifting frame 160. The lifting frame 160 is provided with a cam bearing 165 that cooperates with the track groove of the cylindrical cam 14. The transverse frame 162 can be movably arranged on the rotating frame 15 relative to the lifting frame 160 at the bag opening position. The second negative pressure suction cup 163 is arranged on the transverse frame 162 relative to the first negative pressure suction cup 161. The bag opening cylinder 164 is connected to and drives the transverse frame 162 to move.

[0038] The rotating frame 15 includes an upper connecting plate 150, a lower connecting plate 151, a plurality of connecting plates 152, a circular connecting plate 155 and an annular mounting seat 156. The circular connecting plate 155 is arranged at the center of the upper connecting plate 150 and is connected to the rotating shaft 12 through a bearing 121. An annular mounting seat 156 is arranged below the circular connecting plate 155. The circular connecting plate 155 is connected to the upper connecting plate 150 through the annular mounting seat 156 and drives the upper connecting plate to rotate. The annular mounting seat 156 is connected to the shaft sleeve 11 through the bearing 121. The upper connecting plate 150 and the lower connecting plate 151 are arranged relatively up and down and have the same shape. They both have a plurality of protruding structures distributed at equal intervals on the circumference. The plurality of connecting plates are vertically connected between the protruding structures of the upper connecting plate 150 and the lower connecting plate 151, so that the rotating frame 15 has a circumferentially equal spacing. The protrusions 154 are distributed at intervals, and the bag opening mechanism 16 is installed on the protrusions 154. The upper connecting plate 150 and the lower connecting plate 151 are rotatably arranged on the sleeve 11 through bearings respectively. The inner side of the connecting plate 152 is provided with a vertically arranged linear guide rail 153, and a clearance window is opened on the connecting plate 152. The rear end of the lifting frame 160 is slidably matched with the linear guide rail 153, and the front end extends from the clearance window to the outside of the connecting plate 152. The first negative pressure suction cup 161 is arranged at the front end of the lifting frame 160. The bag opening mechanism 16 includes two bag opening cylinders 164, which are parallelly and spaced apart on both sides of the protrusion 154 of the rotating frame 15, and the bag opening cylinders 164 extend along the radial direction of the rotating shaft 12, and the transverse frame 162 is connected between the piston rods of the two bag opening cylinders 164.

[0039] The air supply system 17 is used to supply air to the bag opening cylinder 164, the first negative pressure suction cup 161 and the second negative pressure suction cup 163. The rotating shaft 12 is formed with a center hole 120 along the axial direction. The air supply system 17 includes an air supply pipe 170, a rotary joint 171 and a negative pressure connecting chamber 172. The rotary joint 171 is arranged at the lower end of the rotating shaft 12. The negative pressure connecting chamber 172 is an annular structure arranged on the rotating frame 15 and centered on the rotating shaft 12. One end of the air supply pipe 170 is connected to the rotary joint 171, and the other end passes through the center hole 120 of the rotating shaft 12 and is connected to the negative pressure connecting chamber 172. The negative pressure connecting chamber 172 supplies air to the bag opening cylinder 164, the first negative pressure suction cup 161 and the second negative pressure suction cup 163 through a branch pipe and a control valve 173.

[0040] An annular box is arranged on the lower connecting plate 151. The box is closed on three sides, and the opening is inverted on the lower connecting plate 151 and fixed on the lower connecting plate 151. The three sides of the box wall and the lower connecting plate 151 enclose an annular negative pressure connecting chamber 172, and the cross section of the negative pressure connecting chamber 172 is rectangular.

[0041] Please refer to Figures 4 to 6 The automatic bag preparation device 2 includes a base 20, a base 21 movably arranged on the base 20, a left-right moving mechanism 22 for driving the base 21 to move left-right, two slides 23 movably arranged on the base 21 and arranged left-right, and a front-back moving mechanism 24 for driving the slide 23 to move back-and-forth. Each slide 23 is provided with a bag storage box 25, and the bag storage box 25 includes two side plates 250, a push plate 251, a rodless cylinder 252 for driving the push plate 251, and two baffles 253 arranged at the front ends of the two side plates 250. The two side plates 250 are arranged left-right and extend forward and backward, the push plate 251 is movably arranged between the two side plates 250, the rodless cylinder 252 is connected to and drives the push plate 251 to move back-and-forth, and the two baffles 253 are relatively independently arranged to block the packaging bags from falling, and a space is relatively formed in the middle through which the first negative pressure washing plate 161 passes.

[0042] The left and right moving mechanism 22 includes a first driving motor 220, a first gear 221a, a first rack 221b and a first linear guide 222. The base 21 is set on the base 20 through the first linear guide 222. The first gear teeth 221a and the first rack 221b are set between the base 21 and the base 20 to drive the base 21 to move. The first driving motor 220 is connected to and drives the first gear 221a to rotate. The front and back moving mechanism 24 includes a second driving motor 240, a second gear 241a, a second rack 241b and a second linear guide 242. The skateboard 23 is set on the base 21 through the second linear guide 242. The second gear 241a and the second rack 241b are set between the skateboard 23 and the base 21 to drive the skateboard 23 to move. The second driving motor 240 drives the second gear 241a to rotate.

[0043] A guide groove 230 is provided on the skateboard 23 along the length direction, the rodless cylinder 252 is arranged under the skateboard 23, the push plate 251 is connected to the rodless cylinder 252 through the guide groove 230, the base 20 is a cabinet structure, the first drive motor 220 and the second drive motor 240 are arranged inside the cabinet structure, and a universal wheel 200 is arranged under the base 20, so that the entire device can move freely.

[0044] Please refer to Figures 7 to 11 The folding and bagging device 3 includes two-sided film conveyor belts 30, a first folding plate mechanism 31, a second folding plate mechanism 32, a third folding plate mechanism 33, a bagging mechanism 34, a first positioning cylinder 35, a second positioning cylinder 36, a third positioning cylinder 37 and a fourth positioning cylinder 38.

[0045] The two mask conveyor belts 30 are connected and there is a gap between them. The first folding plate mechanism 31 includes a first folding plate 310 that can move up and down and pass through the gap, two first clamping plates 311 that are used to receive the first folding plate 310 and are arranged at intervals, and a first linear module 312 that is connected to and drives the first folding plate 310 to move. The first folding plate 310 can fold the mask in half and insert it between the two first clamping plates 311; the second folding plate mechanism 32 includes a second folding plate 320 that can move left and right and pass through the two first clamping plates 311 to fold the mask in half, two second clamping plates 321 that are used to receive the second folding plate 320 and are arranged at intervals, and a second linear module 322 that is connected to and drives the second folding plate 320 to move; the third The folding plate mechanism 33 includes a third folding plate 330 that can move forward and backward to pass through the two second clamps 321 to fold the mask in half, two third clamps 331 for receiving the third folding plate 330 and arranged at intervals, and a third linear module 332 that connects and drives the third folding plate 330. The bagging mechanism 34 includes two clips 340 for receiving the third folding plate 330 and a fourth linear module 341 that connects and drives the two clips 340. The two clips 340 are supported behind the third clamp 331, and the two clips 340 can move up and down between the receiving position and the bagging position. The first folding plate 310 and the second folding plate 320 are arranged vertically, and the first folding plate 310 and the third folding plate 330 are arranged parallel.

[0046] The two first clamping plates 311 are arranged relatively spaced apart, and a space for receiving the first folding plate 310 is formed in the middle. A clearance hole for the second folding plate 320 to pass through is provided at the position of the two first clamping plates 311 facing the second folding plate 320. A clearance hole for the first positioning cylinder 35 to pass through is provided on one plate of the two first clamping plates 311. The front end of the first positioning cylinder 35 passes through the clearance hole on one plate and presses the mask on the other plate of the first clamping plate 311. The structures of the second clamping plate 321 and the third clamping plate 331 are similar to those of the first clamping plate 311, and only the arrangement directions are different, which will not be elaborated here.

[0047] The front end of the first positioning cylinder 35 can extend out to press the mask in the two first clamping plates 311, and the first folding plate 310 is formed with a clearance hole for the front end of the first positioning cylinder 35 to pass through. The front end of the second positioning cylinder 36 can extend out to press the mask in the two second clamping plates 321, and the second folding plate 320 is formed with a clearance hole for the second positioning cylinder 36 to pass through. The front end of the third positioning cylinder 37 can extend out to press the mask in the two clamping plates 340 at the receiving position, and the third folding plate 330 is formed with a clearance hole for the third positioning cylinder 37 to pass through. The front end of the fourth positioning cylinder 38 can extend out and block the mask in the two clamping plates 340 at the bagging position, and the two clamping plates 340 are formed with a clearance hole for the fourth positioning cylinder 38 to pass through.

[0048] The first linear module 312, the second linear module 322, the third linear module 332 and the fourth linear module 341 have the same structure, and all include a mold frame A, a motor B, a transmission belt C, two guide columns D and a slider E. The motor B is arranged on the mold frame A and is connected to and drives the transmission belt C. The transmission belt C passes through the slider E and one side is fixedly connected to the slider E. The slider E is provided with a guide hole, and the two guide columns D pass through the guide hole and are arranged on both sides of the transmission belt C.

[0049] The automatic facial mask packaging machine comprises two sets of transfer bag opening devices 1, automatic bag preparation devices 2 and folding bag entry devices 3. The two sets of folding bag entry devices 3 are arranged in a straight line in a mirror image. The two transfer bag opening devices 1 and the two automatic bag preparation devices 2 are arranged at the bag entry positions of the two clamps 340 of the left and right folding bag entry devices 3. Of course, the effect of the automatic facial mask packaging machine can be achieved by using only one set of devices.

[0050] Continue to refer to Figures 1 to 11 When the present invention is used, the two bag storage boxes 25 of the automatic bag preparation device 2 are filled with packaging bags, the automatic bag preparation device 2 is moved to a suitable position, the left and right moving mechanism 22 and the front and back moving mechanism 24 are started to adjust the position of the bag storage boxes 25, so that when the lifting frame 160 is in the bag taking position, the first negative pressure washing plate 161 can absorb the packaging bags.

[0051] Start the transfer bag opening device 1, the lifting frame 160 descends to the bag taking position, the first negative pressure washing plate 161 sucks the packaging bag, and the servo motor 13 drives the rotating shaft 12 to drive the transfer bag opening device 1 to rotate. During the rotation process, the bag opening cylinder 164 drives the transverse frame 162 to move, and the second negative pressure washing plate 163 approaches the packaging bag and is adsorbed on the other side of the packaging bag. The bag opening cylinder 164 drives the transverse frame 162 away from the packaging bag, and the bag mouth of the packaging bag is pulled open. The rotating frame 15 rotates to the bag entry position, and three protrusions 154 are provided on the transfer bag opening mechanism. The three protrusions 154 are all provided with a bag opening mechanism 16, so that the transfer bag opening device 1 can operate continuously and uninterruptedly to ensure the smoothness of the device. When the bag opening mechanism 16 takes away a packaging bag, the push plate 251 will push the packaging bag in the bag storage box forward to facilitate the next bag taking.

[0052] The mask is placed on the mask conveyor belt 30 of the folding and bagging device, and the mask conveyor belt 30 conveys the mask to the gap. The first linear module 312 drives the first folding plate 310 to descend, and the first folding plate 310 folds the mask for the first time. The front end of the first positioning cylinder 35 extends to press the mask to prevent the first folding plate 310 from lifting the mask when it rises. After the first folding plate 310 rises, the second linear module 322 drives the second folding plate 320 to move forward, and the second folding plate 320 folds the mask for the second time. The front end of the second positioning cylinder 36 extends to press the mask to prevent the second folding plate 320 from moving backward. The mask is driven to move backward. After the second folding plate 320 moves backward, the third linear module 332 drives the third folding plate 330 to fold the mask for the third time and send the mask into the two clips 340 at the same time. The front end of the third positioning cylinder 37 extends out to press the mask to prevent the third folding plate 330 from moving back and driving the mask. The two clips 340 receive the folded mask. The fourth linear module 341 drives the two clips 340 to descend. The two clips 340 send the mask into the opened packaging bag at the bagging position. The front end of the fourth positioning cylinder 38 extends out to prevent the two clips 340 from rising and driving the mask up together.

[0053] When the packaging bags in a bag storage box 25 on the automatic bag preparation device 2 are used up, the front and rear moving mechanism 24 and the left and right moving mechanism 22 are started to move the empty bag storage box 25 out, and the other bag storage box 25 is moved to the bag taking position to continue supplying packaging bags, and then the empty bag storage box 25 is replenished with packaging bags for the next use.

[0054] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. An automatic facial mask packaging machine, characterized in that: The invention comprises an automatic bag preparation device, a transfer bag opening device, and a folding bag entry device. The automatic bag preparation device is used to store packaging bags and supply packaging bags to the transfer bag opening device. The transfer bag opening device is used to obtain packaging bags from the automatic bag preparation device and transfer the packaging bags to the bagging position and open the bag mouth. The folding bag entry device is used to fold the facial mask and send it into the packaging bag with the bag mouth opened. The transfer bag opening device comprises a fixed vertically arranged shaft sleeve, a rotating shaft rotatably arranged in the shaft sleeve, a driving member driving the rotating shaft to perform intermittent rotation, a cylindrical cam fixedly sleeved on the shaft sleeve, a cylindrical cam rotatably arranged on the shaft sleeve and connected to the rotating shaft A rotating frame connected to the rotating frame, a plurality of bag opening mechanisms arranged on the rotating frame at equal intervals on the circumference, each bag opening mechanism includes a lifting frame, a first negative pressure suction cup, a transverse frame, a second negative pressure suction cup, and a bag opening cylinder. The lifting frame can be arranged on the rotating frame to move up and down between a bag opening position and a bag taking position. The first negative pressure suction cup is arranged on the lifting frame, and a cam bearing matched with a cylindrical cam track groove is arranged on the lifting frame. The transverse frame can be movably arranged on the rotating frame relative to the lifting frame at the bag opening position. The second negative pressure suction cup is arranged on the transverse frame relative to the first negative pressure suction cup. The bag opening cylinder is connected to and drives the transverse frame to move; The rotary frame comprises an upper connecting plate, a lower connecting plate and a plurality of connecting plates; The upper connecting plate and the lower connecting plate have the same shape and both have a plurality of protruding structures distributed at equal intervals around the circumference; the connecting plate is connected between the protruding structures of the upper connecting plate and the lower connecting plate, so that the rotary frame has protruding parts distributed at equal intervals around the circumference, and the bag opening mechanism is installed on the protruding parts; A vertically arranged linear guide rail is provided on the inner side of the connecting plate, a clearance window is provided on the connecting plate, the rear end of the lifting frame is slidably matched with the linear guide rail, and the front end extends from the clearance window to the outside of the connecting plate, and the first negative pressure suction cup is provided at the front end of the lifting frame; It also includes an air supply system for supplying air to the bag opening cylinder, the first negative pressure suction cup and the second negative pressure suction cup, and the rotating shaft is axially penetrated to form a central hole; The air supply system includes an air supply pipeline, a rotary joint and a negative pressure communication chamber, wherein the rotary joint is arranged at the lower end of the rotating shaft, and the negative pressure communication chamber is arranged on the rotating frame, one end of the air supply pipeline is connected to the rotary joint, and the other end passes through the central hole of the rotating shaft and is connected to the negative pressure communication chamber, and the negative pressure communication chamber supplies air to the bag opening cylinder, the first negative pressure suction cup and the second negative pressure suction cup through a branch pipe and a control valve; The folding and bagging device includes two mask conveyor belts, a first folding plate mechanism, a second folding plate mechanism, a third folding plate mechanism and a bagging mechanism. The two mask conveyor belts are connected and there is a gap. The first folding plate mechanism includes a first folding plate that can move up and down to pass through the gap and two first clamping plates for receiving the first folding plate and arranged at intervals. The first folding plate can fold the mask in half and insert it between the two first clamping plates; the second folding plate mechanism includes a second folding plate that can move left and right to pass through the two first clamping plates to fold the mask in half and two second clamping plates for receiving the second folding plate and arranged at intervals; the third folding plate mechanism includes a third folding plate that can move forward and backward to pass through the two second clamping plates to fold the mask in half.

2. The automatic facial mask packaging machine according to claim 1, characterized in that: The bag opening mechanism comprises two bag opening cylinders, which are arranged in parallel and spaced apart on both sides of the protruding portion of the rotating frame, and the bag opening cylinders extend radially along the rotating shaft, and the transverse frame is connected between the piston rods of the two bag opening cylinders.

3. The automatic facial mask packaging machine according to claim 1, characterized in that: The upper connecting plate and the lower connecting plate are arranged opposite to each other up and down, a plurality of connecting plates are vertically connected between the upper connecting plate and the lower connecting plate, and the upper connecting plate and the lower connecting plate are rotatably arranged on the shaft sleeve through bearings respectively.

4. The automatic facial mask packaging machine according to claim 1, characterized in that: The negative pressure communication chamber is an annular structure with the rotating shaft as the center.

5. The automatic facial mask packaging machine according to claim 1, characterized in that: The automatic bag preparation device includes a base, a base arranged on the base so as to be movably arranged left and right, a left and right moving mechanism for driving the base to move left and right, two slides arranged on the base so as to be movably arranged left and right and forward and backward, and a forward and backward moving mechanism for driving the slides to move forward and backward. Each slide is provided with a bag storage box, and the bag storage box includes two side plates, a push plate, and a push plate driving member. The two side plates are arranged left and right and extend forward and backward. The push plate is arranged between the two side plates so as to be movably arranged forward and backward. The push plate driving member drives the push plate to move forward and backward.

6. The automatic facial mask packaging machine according to claim 1, characterized in that: The bagging mechanism comprises two clips for receiving the third folding plate, the two clips can move up and down between a receiving position and a bagging position, the first folding plate is arranged vertically with the second folding plate, and the first folding plate is arranged parallel with the third folding plate.

7. The packaging method of the facial mask automatic packaging machine according to any one of claims 1 to 6, which is used to automatically fold and package the finished facial mask into bags, characterized in that: The steps include: A. Fill the empty packaging bags into the automatic bag preparation device and adjust it to a suitable position; B. The bag transfer and opening device takes the packaging bag from the automatic bag preparation device and transfers the packaging bag to the bag filling position, and opens the bag mouth during the transfer process; C. The mask is transported by a conveyor belt and then automatically folded by a folding bag device to meet bagging requirements; D. The folded mask is automatically sent to the bagging position and bagged.

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