Facial mask cloth cotton folding machine

Abstract

The utility model relates to the technical field of facial mask packaging equipment, in particular to a facial mask cloth cotton folding machine which comprises a machine frame, a conveying set, a first folding set and a first bagging set are installed on the machine frame, and the conveying set comprises an initial conveying device and a first conveying device; the initial conveying device and the first conveying device each comprise an air suction conveying set, and each air suction conveying set comprises a conveying steel belt, a rubber belt and an air suction device. A plurality of first vent holes are formed in the conveying steel belt, a plurality of second vent holes are formed in the rubber belt sleeve, and an air suction port of the air suction device is covered with the inner surface of the conveying steel belt; after the technical scheme is adopted, when the mask cloth passes through the position above the air suction device in the conveying process of the mask cloth on the rubber belt, the air suction device enables the first vent holes and the second vent holes to have negative pressure, so that the mask cloth is adsorbed on the rubber belt, and in the conveying process, even if the mask cloth is influenced by air flow, the mask cloth is not prone to sliding relative to the rubber belt; and the mask cloth is not easy to blow away, so that the environmental adaptability is relatively good.

Description

Technical Field

[0001] The utility model relates to the technical field of facial mask packaging equipment, in particular to a facial mask cloth folding machine. Background Art

[0002] A high-speed facial mask packaging machine disclosed in the Chinese utility model patent document with authorization announcement number CN207029693U includes: a first folding group, the first folding group includes a first conveyor belt, a second conveyor belt, a first folding knife, a second folding knife, a third folding knife, a first forming groove, a second forming groove, and a third forming groove arranged in sequence along the conveying direction; the second folding group includes a third conveyor belt, a fourth folding knife, a fifth folding knife, a sixth folding knife, a fourth forming groove, a fifth forming groove, and a sixth forming groove; a first bagging group; a second bagging group; a first bag opening group; a second bag opening group; a bag storage groove for storing facial mask bags; a bag taking group; and an empty bag detection component.

[0003] However, the aforementioned high-speed facial mask packaging machine still has several drawbacks: none of the first, second, or third conveyors are equipped with devices to secure the mask, resulting in relatively poor retention of the mask cloth during transport. While the mask is being transported on the first, second, or third conveyors, it is susceptible to airflow (e.g., from people walking, fans, etc.), causing the mask cloth to slip relative to the conveyor belts or even be blown away. This makes the aforementioned high-speed facial mask packaging machine's operating environment airflow requirements relatively high, resulting in relatively poor environmental adaptability.

[0004] In view of this, the applicant conducted an in-depth study on the above issues, which led to the present case. Utility Model Content

[0005] The utility model aims to provide a facial mask cloth folding machine with relatively good environmental adaptability.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A facial mask cloth folding machine comprises a frame, on which a conveying group, a first folding group and a first bagging group connected with the first folding group are installed.

[0008] The conveying group includes an initial conveying device and a first conveying device which have the same conveying direction and are arranged in a straight line along the conveying direction; a first gap is formed between the initial conveying device and the first conveying device;

[0009] The first folding group includes a first cylinder whose cylinder body is fixed to the frame and whose piston rod is arranged vertically, a first folding plate fixed to the piston rod of the first cylinder and in the same vertical plane as the first gap, and a first forming groove located below the first gap and used to accommodate the first folding plate; a cavity is defined in the first folding plate, the cavity is connected to a negative pressure device, and a suction hole group connected to the cavity is defined at the lower end of the first folding plate;

[0010] The initial conveying device and the first conveying device both include an air suction conveying group, and the air suction conveying group includes a conveying steel belt, a rubber belt and an air suction device; in the same air suction conveying group, the conveying steel belt is installed on the frame and the conveying steel belt is provided with a plurality of first air vents, the rubber belt is sleeved on the outer surface of the conveying steel belt and is provided with a plurality of second air vents, and the plurality of second air vents are connected to the plurality of first air vents in a one-to-one correspondence, the air suction device is installed on the frame and has an air suction port opening upward, and the inner surface of the conveying steel belt covers the air suction port.

[0011] Preferably, the initial conveying device further comprises an initial cloth roller group mounted on the frame.

[0012] In the initial conveying device, the initial cloth roller group is located on the upper side of the rubber belt; the initial cloth roller group includes at least one initial front cloth roller located on the side of the suction device away from the first gap and at least one initial rear cloth roller located on the side of the suction device close to the first gap, the initial front cloth rollers constitute an initial front cloth roller group, and the initial rear cloth rollers constitute an initial rear cloth roller group, and the minimum horizontal distance from the initial front cloth roller group to the suction device and the minimum horizontal distance from the initial rear cloth roller group to the suction device are both less than the length of the facial mask cloth;

[0013] The first conveying device also includes a first cloth roller group installed on the frame,

[0014] In the first conveying device, the first cloth roller group is located on the upper side of the rubber belt, and the first cloth roller group includes at least one first front cloth roller located on the side of the suction device close to the first gap and at least one first rear cloth roller located on the side of the suction device away from the first gap, the first front cloth rollers constitute a first front cloth roller group, and the first rear cloth rollers constitute a first rear cloth roller group, and the minimum horizontal distance from the first front cloth roller group to the suction device and the minimum horizontal distance from the first rear cloth roller group to the suction device are both less than the length of the facial mask cloth;

[0015] The distance between the initial rear cloth roller group and the first front cloth roller group is less than the length of the facial mask cloth.

[0016] Preferably, the number of the initial front cloth rollers is greater than 1, and the initial front cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent initial front cloth rollers is less than the length of the facial mask cloth; the number of the initial rear cloth rollers is greater than 1, and the initial rear cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent initial rear cloth rollers is less than the length of the facial mask cloth;

[0017] The number of the first front cloth rollers is greater than 1, and the first front cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent first front cloth rollers is less than the length of the facial mask cloth; the number of the first rear cloth rollers is greater than 1, and the first rear cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent first rear cloth rollers is less than the length of the facial mask cloth.

[0018] Preferably, in the initial conveying device, a third gap adapted to the thickness of the facial mask cloth is formed between each of the initial front cloth rollers and each of the initial rear cloth rollers and the rubber belt;

[0019] In the first conveying device, a fourth gap adapted to the thickness of the facial mask cloth is formed between each of the first front cloth rollers and each of the first rear cloth rollers and the rubber belt.

[0020] Preferably, in the first folding plate, there are multiple air suction hole groups, and the multiple air suction hole groups are arranged in a straight line along the length direction of the first folding plate; each air suction hole group includes a first air hole, a second air hole and a third air hole; in the same air suction hole group, the first air hole is arranged vertically and the opening faces downward, the upper end of the second air hole is connected to the cavity, and the second air hole gradually moves away from the center plane of the first folding plate from the upper end to the lower end; the third air hole and the second air hole are symmetrically arranged with the center plane of the first folding plate as the center.

[0021] Preferably, the rack is further provided with an empty bag detection group, the empty bag detection group comprising a first detection group that takes over from the first bagging group;

[0022] The first detection group includes a first belt, a first detection roller, a first infrared sensor for detecting the passing of finished bags, and a first displacement sensor for detecting the displacement of the first detection roller. The first belt is installed on the frame and is located below the first bagging group. The first detection roller is rotatably connected to the frame through a swing arm bracket and abuts against the first belt.

[0023] Preferably, the facial mask cloth folding machine further comprises a conveyor belt located on one side of the frame, and the conveying end point of the first belt is connected with the conveying starting point of the conveyor belt.

[0024] Preferably, a film cloth detection device is provided on the frame, and the film cloth detection device comprises a first film cloth sensor located near the first folding plate;

[0025] The first membrane cloth sensor is installed on the frame and is located on the upper side of the first conveying device. The projections of the first membrane cloth sensor and the first cloth roller on the horizontal plane are staggered.

[0026] Preferably, a first sensor frame is fixed on the frame, the first membrane cloth sensor is horizontally slidably connected to the first sensor frame, and a sliding locking device is provided on the first membrane cloth sensor;

[0027] The outer surface of the rubber belt of the first conveying device is divided into a first color area and a second color area, the first color area and the second color area are arranged side by side along the width direction of the rubber belt, the first color area is painted with a first color, and the second color area is painted with a second color.

[0028] By adopting the above technical solution, the beneficial effects of the utility model are:

[0029] By opening a first air vent hole on the conveyor steel belt, opening a second air vent hole connected to the first air vent hole on the rubber belt, and covering the inner surface of the conveyor steel belt on the air suction port of the suction device, during the transportation of the facial mask cloth on the rubber belt, when the facial mask cloth passes over the top of the suction device, the suction device makes the first air vent hole and the second air vent hole have negative pressure, thereby adsorbing the facial mask cloth on the rubber belt. During the transportation process, even if affected by the airflow, the facial mask cloth is not easy to slip relative to the rubber belt, and the facial mask cloth is not easy to be blown away, and the environmental adaptability is relatively good. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a facial mask cloth folding machine of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at position A;

[0032] Figure 3 This is a schematic structural diagram of the initial conveying device of the present utility model;

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the first folding plate of the present invention;

[0034] Figure 5 This is a partial structural diagram of the first folding group of the present invention (the first cylinder and the first folding plate are not shown in the figure);

[0035] Figure 6 for Figure 1 Schematic diagram of the enlarged structure at position B.

[0036] In the picture:

[0037] 100-rack;

[0038] 110 - first sensor frame; 111 - first membrane cloth sensor;

[0039] 120 - second sensor frame; 121 - second membrane cloth sensor;

[0040] 210-initial transmission device;

[0041] 211- conveyor steel belt; 212- rubber belt;

[0042] 213- air suction device; 214- initial cloth roller group;

[0043] 220-first conveying device; 230-second conveying device;

[0044] 300-first folding plate; 310-air nozzle;

[0045] 320-intake hole group; 321-first air hole;

[0046] 322-second pore; 323-third pore;

[0047] 400-second folding plate;

[0048] 510-first bagging group; 511-first bagging group;

[0049] 512-first bag opening group; 513-first bag storage tank;

[0050] 514-first bag taking component;

[0051] 520-second bagging group;

[0052] 610-first belt; 611-first detection roller;

[0053] 620-second belt; 621-second detection roller;

[0054] 700- conveyor belt;

[0055] 811-first forming groove;

[0056] 820-first two-fold plate; 821-first two-fold forming groove;

[0057] 830-first three-fold plate; 831-first three-fold forming groove. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0059] like Figures 1-6 As shown, this embodiment provides a facial mask cloth folding machine, including a frame 100, on which are installed a conveying group, a first folding group, a second folding group, a first bagging group 510 connected to the first folding group, and a second bagging group 520 connected to the second folding group.

[0060] When folding and bagging the facial mask, you need to prepare the facial mask cloth and the facial mask bag, fold the facial mask cloth, then open the facial mask bag, and then put the folded facial mask cloth into the facial mask bag.

[0061] It should be noted that the first bagging group 510 and the second bagging group 520 are existing conventional structures; wherein, the first bagging group 510 includes a first bagging group 511 that receives the first folding group, a first bag opening group 512 that is located below the first bagging group 511 and cooperates with the first bagging group 511, a first bag storage slot 513 for storing facial mask bags, and a first bag taking assembly 514 for taking facial mask bags out of the first bag storage slot 513 and sending them to the first bag opening group 512; the structure of the second bagging group 520 is the same as that of the first bagging group 510 and will not be repeated.

[0062] The conveyor group includes an initial conveyor 210, a first conveyor 220, and a second conveyor 230, which are arranged in a straight line along the same conveying direction. A first gap is formed between the initial conveyor 210 and the first conveyor 220, and a second gap is formed between the first conveyor 220 and the second conveyor 230. In this embodiment, the conveying surfaces of the initial conveyor 210, the first conveyor 220, and the second conveyor 230 are horizontal.

[0063] The initial conveying device 210 , the first conveying device 220 and the second conveying device 230 all include a suction conveying group, which includes a conveying steel belt 211 , a rubber belt 212 and a suction device 213 .

[0064] It should be noted that the conveyor belt 211 is annular and forms an annular area; the surface of the conveyor belt 211 facing the annular area is the inner surface, and the surface on the opposite side is the outer surface.

[0065] In the same suction conveying group, the conveying steel belt 211 is mounted on the frame 100 and has a plurality of first ventilation holes. The rubber belt 212 is sleeved on the outer surface of the conveying steel belt 211 and has a plurality of second ventilation holes. The plurality of second ventilation holes are connected to the plurality of first ventilation holes in a one-to-one correspondence. The suction device 213 is mounted on the frame 100 and has an upward-opening suction port. The inner surface of the conveying steel belt 211 covers the suction port. In this embodiment, each suction device 213 is fixedly connected to the frame 100. One of the suction devices 213 is used as an example for description. The suction device 213 includes an suction box. The suction port is opened at the upper end of the suction box. The suction box is fixed to the frame 100. The suction box is slidably connected to the conveying steel belt 211. It should be noted that the sliding connection structure between the suction box and the conveying steel belt 211 is an existing conventional structure and will not be described here.

[0066] It should be noted that the initial conveying device 210 has a transmission device, a driving wheel, and a driven wheel, which are respectively mounted on the frame 100, wherein the driving wheel is located at the starting end of the initial conveying device 210, and the driven wheel is located at the terminal end of the initial conveying device 210; the driving wheel is connected to the transmission device, and the conveying steel belt 211 is wound around the driving wheel and the driven wheel at the same time. Therefore, in the initial conveying device 210, the suction device 213 is located between the driving wheel and the driven wheel. Similarly, the first conveying device 220 also has a transmission device, a driving wheel, and a driven wheel. In the first conveying device 220, the suction device 213 is located between the driving wheel and the driven wheel; the second conveying device 230 also has a transmission device, a driving wheel, and a driven wheel. In the second conveying device 230, the suction device 213 is located between the driving wheel and the driven wheel.

[0067] By opening a first air vent on the conveyor steel belt 211, opening a second air vent connected to the first air hole on the rubber belt 212, and covering the inner surface of the conveyor steel belt 211 on the air intake of the air suction device 213, when the facial mask cloth is conveyed on the rubber belt 212, when the facial mask cloth passes over the air suction device 213, the air suction device 213 makes the first air vent and the second air hole have negative pressure, thereby adsorbing the facial mask cloth on the rubber belt 212. During the conveying process, even if affected by the air flow, the facial mask cloth is not easy to slip relative to the rubber belt 212, and the facial mask cloth is not easy to be blown away, and the environmental adaptability is relatively good.

[0068] The initial conveying device 210 further includes an initial cloth roller set 214 mounted on the frame 100 . In the initial conveying device 210 , the initial cloth roller set 214 is located on the upper side of the rubber belt 212 .

[0069] The initial cloth roller group 214 includes at least one initial front cloth roller located on the side of the suction device 213 away from the first gap and at least one initial rear cloth roller located on the side of the suction device 213 close to the first gap. The axis of each initial front cloth roller and the axis of each initial rear cloth roller are respectively arranged perpendicular to the conveying direction of the initial conveying device 210, and the axis of each initial front cloth roller and the axis of each initial rear cloth roller are respectively arranged horizontally; the initial front cloth rollers constitute an initial front cloth roller group, and the initial rear cloth rollers constitute an initial rear cloth roller group. The minimum horizontal distance from the initial front cloth roller group to the suction device 213 and the minimum horizontal distance from the initial rear cloth roller group to the suction device 213 are both less than the length of the facial mask cloth.

[0070] In this embodiment, there is one initial front cloth roller and one initial rear cloth roller. It should be noted that when the number of initial front cloth rollers is greater than 1, the initial front cloth rollers are arranged in sequence along the conveying direction of the initial conveying device 210, and the distance between adjacent initial front cloth rollers is less than the length of the facial mask cloth; when the number of initial rear cloth rollers is greater than 1, the initial rear cloth rollers are arranged in sequence along the conveying direction of the initial conveying device 210, and the distance between adjacent initial rear cloth rollers is less than the length of the facial mask cloth.

[0071] Furthermore, a third gap adapted to the thickness of the mask cloth is formed between each initial front cloth roller and each initial rear cloth roller and the rubber belt 212, and the third gap is smaller than the thickness of the mask cloth. By providing the third gap and the third gap being smaller than the thickness of the mask cloth, the mask cloth is not only effectively restrained when passing between the initial front cloth roller and the rubber belt 212, or between the initial rear cloth roller and the rubber belt 212, but also passes more easily when the third gap is provided than when no third gap is provided.

[0072] The first conveying device 220 further includes a first cloth roller group installed on the frame 100 . In the first conveying device 220 , the first cloth roller group is located on the upper side of the rubber belt 212 .

[0073] The first cloth roller group includes at least one first front cloth roller located on the side of the suction device 213 close to the first gap and at least one first rear cloth roller located on the side of the suction device 213 away from the first gap. The axis of each first front cloth roller and the axis of each first rear cloth roller are respectively arranged perpendicular to the conveying direction of the first conveying device 220, and the axis of each first front cloth roller and the axis of each first rear cloth roller are respectively arranged horizontally; the first front cloth rollers constitute the first front cloth roller group, and the first rear cloth rollers constitute the first rear cloth roller group. The minimum horizontal distance from the first front cloth roller group to the suction device 213 and the minimum horizontal distance from the first rear cloth roller group to the suction device 213 are both less than the length of the facial mask cloth.

[0074] In this embodiment, there is one first front cloth roller and one first rear cloth roller. It should be noted that when the number of first front cloth rollers is greater than 1, the first front cloth rollers are arranged in sequence along the conveying direction of the first conveying device 220, and the distance between adjacent first front cloth rollers is less than the length of the facial mask cloth; when the number of first rear cloth rollers is greater than 1, the first rear cloth rollers are arranged in sequence along the conveying direction of the first conveying device 220, and the distance between adjacent first rear cloth rollers is less than the length of the facial mask cloth.

[0075] Furthermore, a fourth gap adapted to the thickness of the mask cloth is formed between each first front cloth roller and each first rear cloth roller and the rubber belt 212, and the fourth gap is smaller than the thickness of the mask cloth. The purpose of setting the fourth gap is the same as that of setting the third gap, and will not be repeated here.

[0076] The second conveying device 230 further includes a second cloth roller group mounted on the frame 100. In the second conveying device 230, the second cloth roller group is located on the upper side of the rubber belt 212.

[0077] The second cloth roller group includes at least one second front cloth roller located on the side of the suction device 213 close to the second gap and at least one second rear cloth roller located on the side of the suction device 213 away from the second gap. The axis of each second front cloth roller and the axis of each second rear cloth roller are respectively arranged perpendicular to the conveying direction of the second conveying device 230, and the axis of each second front cloth roller and the axis of each second rear cloth roller are respectively arranged horizontally; the second front cloth rollers constitute the second front cloth roller group, and the second rear cloth rollers constitute the second rear cloth roller group. The minimum horizontal distance from the second front cloth roller group to the suction device 213 and the minimum horizontal distance from the second rear cloth roller group to the suction device 213 are both less than the length of the facial mask cloth.

[0078] In this embodiment, there is one second front cloth roller and one second rear cloth roller. It should be noted that when the number of second front cloth rollers is greater than 1, the second front cloth rollers are arranged in sequence along the conveying direction of the second conveying device 230, and the distance between adjacent second front cloth rollers is less than the length of the facial mask cloth; when the number of second rear cloth rollers is greater than 1, the second rear cloth rollers are arranged in sequence along the conveying direction of the second conveying device 230, and the distance between adjacent second rear cloth rollers is less than the length of the facial mask cloth.

[0079] Furthermore, a fifth gap adapted to the thickness of the mask cloth is formed between each second front cloth roller and each second rear cloth roller and the rubber belt 212, and the fifth gap is smaller than the thickness of the mask cloth. The purpose of setting the fifth gap is the same as that of setting the third gap, and will not be repeated here.

[0080] The distance between the initial rear cloth roller group and the first front cloth roller group is less than the length of the mask cloth; the distance between the first rear cloth roller group and the second front cloth roller group is less than the length of the mask cloth.

[0081] By setting the initial cloth roller group 214, the first cloth roller and the second cloth roller, the mask cloth can also play a limiting role after leaving the range of the suction device 213, thereby preventing the mask cloth from being blown away during the transmission process.

[0082] The first folding group includes a first cylinder whose cylinder body is fixed to the frame 100 and whose piston rod is arranged vertically, a first folding plate 300 whose piston rod is fixed to the first cylinder and is on the same vertical plane as the first gap, and a first forming groove 811 located below the first gap and used to accommodate the first folding plate 300; a cavity is provided in the first folding plate 300, and the cavity is connected to a negative pressure device. Specifically, an air nozzle 310 connected to the cavity is provided at the upper end of the first folding plate 300, and the cavity is connected to the negative pressure device through the air nozzle 310. It should be noted that the negative pressure device is an existing conventional device that can be directly purchased on the market; an air suction hole group 320 connected to the cavity is provided at the lower end of the first folding plate 300.

[0083] It should be noted that the width direction of the first folding plate 300 is the same as the conveying direction of the first conveying device 220, the height direction of the first folding plate 300 is the same as the vertical direction, the length direction of the first folding plate 300 is perpendicular to the height direction, and the length direction of the first folding plate 300 is perpendicular to the width direction; the center plane of the first folding plate 300 is a vertical plane passing through the centroid of the first folding plate 300, and the center plane of the first folding plate 300 is arranged perpendicular to the conveying direction of the first conveying device 220.

[0084] In the first folding plate 300, there are multiple air intake hole groups 320, and the multiple air intake hole groups 320 are arranged in a straight line in sequence along the length direction of the first folding plate 300; the structures of the air intake hole groups 320 are the same. Each air intake hole group 320 includes a first air hole 321, a second air hole 322, and a third air hole 323. In the same air intake hole group 320, the first air hole 321 is arranged vertically and opens downward, the upper end of the second air hole 322 is connected to the cavity, and the second air hole 322 gradually moves away from the center plane of the first folding plate 300 from the upper end to the lower end; the third air hole 323 and the second air hole 322 are arranged symmetrically with the center plane of the first folding plate 300 as the center, wherein the opening of the second air hole 322 is inclined toward the initial conveying device 210, and correspondingly, the opening of the third air hole 323 is inclined toward the first conveying device 220. In this embodiment, a first two-fold cylinder is further provided on one side of the first molding groove 811, and the piston rod of the first two-fold cylinder is perpendicular to the first molding groove 811. The piston rod of the first two-fold cylinder is installed with a first two-fold plate 820, and the first two-fold plate 820 is perpendicular to the first molding groove 811. The other side of the first molding groove 811 is provided with a first two-fold molding groove 821 for accommodating the first two-fold plate 820. The first two-fold plate 820 and the first two-fold molding groove 821 are on the same plane, and a first two-fold hole is opened on the first molding groove 811 for the first two-fold plate 820 to pass through. A first three-fold cylinder is also provided on one side of the two-fold forming groove 821, and the piston rod of the first three-fold cylinder is perpendicular to the first two-fold forming groove 821. The piston rod of the first three-fold cylinder is installed with a first three-fold plate 830, and the first three-fold plate 830 is perpendicular to the first two-fold forming groove 821. The other side of the first two-fold forming groove 821 is provided with a first three-fold forming groove 831 for accommodating the first three-fold plate 830. The first three-fold plate 830 and the first three-fold forming groove 831 are on the same plane, and the first two-fold forming groove 821 is provided with a first three-fold hole for the first three-fold plate 830 to pass through.

[0085] The folding action of the first folding group is as follows: in the first step, the piston rod of the first cylinder extends to drive the first folding plate 300 to move in the direction close to the first forming groove 811, the first folding plate 300 absorbs the mask cloth and inserts it into the first forming groove 811 together with the mask cloth, the negative pressure device is closed, the piston rod of the first cylinder retracts and drives the first folding plate 300 to move in the direction away from the first forming groove 811, and the mask cloth is left in the first forming groove 811; in the second step, the piston rod of the first second folding cylinder extends to drive the first second folding plate 820 to move in the direction close to the first second folding forming groove 821, the first second folding plate 820 absorbs the mask cloth and inserts it into the first forming groove 811 together with the mask cloth. When the facial mask cloth enters the first two-fold forming groove 821, the piston rod of the first two-fold cylinder retracts and drives the first two-fold plate 820 to move away from the first two-fold forming groove 821, and the facial mask cloth is left in the first two-fold forming groove 821; in the third step, the piston rod of the first three-fold cylinder extends to drive the first three-fold plate 830 to move toward the first three-fold forming groove 831, and the first three-fold plate 830 absorbs the facial mask cloth and inserts it into the first three-fold forming groove 831 together with the facial mask cloth. The piston rod of the first three-fold cylinder retracts and drives the first three-fold plate 830 to move away from the first three-fold forming groove 831, and the facial mask cloth is left in the first three-fold forming groove 831. It should be noted that after the first folding group completes the folding action, the first bag taking component 514 takes out the mask bag from the first bag storage slot 513 and sends it to the first bag opening group 512. The first bag opening group 512 opens the mask bag, and the first bag entering group 511 inserts the mask cloth into the mask bag from the first three-fold forming slot 831.

[0086] The structure of the second folding group is the same as that of the first folding group, and the folding action of the second folding group is the same as that of the first folding group, which will not be described in detail.

[0087] The frame 100 is equipped with a film detection device, which includes a first film sensor 111 located near the first folding plate 300 and a second film sensor 121 located near the second folding plate 400. The first film sensor 111 is mounted on the frame 100 and located above the first conveyor 220. The projections of the first film sensor 111 and the first film roller on the conveying surface of the first conveyor 220 are offset. The second film sensor 121 is mounted on the frame 100 and located above the second conveyor 230. The projections of the second film sensor 121 and the first film roller on the conveying surface of the rubber belt 212 of the second conveyor 230 are offset. In this embodiment, the frame 100 is fixed with a first sensor frame 110 and a second sensor frame 120. The first film sensor 111 is horizontally slidably connected to the first sensor frame 110 and is equipped with a sliding locking device. The second film sensor 121 is horizontally slidably connected to the second sensor frame 120 and is equipped with a sliding locking device. It should be noted that the sliding locking device is an existing conventional device that can be directly purchased on the market and will not be described in detail here.

[0088] By providing the suction hole group 320 at the lower end of the first folding plate 300, an upward suction force is provided to the facial mask cloth, which facilitates the transfer of the facial mask cloth from the initial conveying device 210 to the first conveying device 220. At the same time, when the first folding plate 300 moves downward to fold the facial mask cloth, the facial mask cloth covers the suction hole group 320, and the suction hole group 320 tightly absorbs the facial mask cloth, which helps to fix the facial mask cloth, prevents the facial mask cloth from slipping relative to the lower end of the first folding plate 300, and ensures folding quality. Since the second folding plate 400 has the same structure as the first folding plate 300 and its function is the same as the first folding plate 300, it will not be described in detail.

[0089] The outer surface of the rubber belt 212 of the first conveyor 220 is divided into a first color zone and a second color zone. The first color zone and the second color zone are arranged side by side along the width direction of the rubber belt. The first color zone is painted with a first color and the second color zone is painted with a second color. Preferably, the first color is black and the second color is white. When the color of the facial mask cloth is closer to the first color, that is, the color of the facial mask cloth is more obviously contrasted with the second color, the film cloth detection device is moved to the top of the second color zone. When the color of the facial mask cloth is closer to the second color, that is, the color of the facial mask cloth is more obviously contrasted with the first color, the film cloth detection device is moved to the top of the first color zone. By dividing the first color zone and the second color zone and moving the film cloth detection device to the top of the color zone with a more obvious color contrast with the color of the facial mask cloth, it is beneficial to improve the recognition accuracy of the film cloth detection device.

[0090] During use, a person or a robot places the facial mask cloth in sequence at the starting end of the initial conveying device 210, and the facial mask cloth is conveyed on the conveying group. The first folding group performs a folding action every time the first membrane cloth sensor 111 is triggered twice, and the second folding group performs a folding action every time the second membrane cloth sensor 121 is triggered. Specifically, when the first facial mask cloth triggers the first membrane cloth sensor 111, the first folding group performs a folding action on the first facial mask cloth. After the second facial mask cloth triggers the first membrane cloth sensor 111, the first folding group does not perform a folding action on the second facial mask cloth, and the second facial mask cloth continues to be conveyed by the conveying group. When the second facial mask cloth triggers the second membrane cloth sensor 121, the second folding group performs a folding action on the second facial mask cloth. Next, the first folding group performs a folding action on the third facial mask cloth, and the second folding group performs a folding action on the fourth facial mask cloth, and so on.

[0091] As a preferred technical solution, in order to improve the yield rate and remove empty bags, an empty bag detection group is also provided on the frame 100. It should be noted that the empty bag detection group can adopt an existing conventional structure that can be directly purchased on the market. As a preferred technical solution, in this embodiment, the empty bag detection group includes a first detection group that takes over the first bagging group and a second detection group that takes over the second bagging group. The first detection group includes a first belt 610, a first detection roller 611, a first infrared sensor for detecting the passage of finished bags, and a first displacement sensor for detecting the displacement of the first detection roller 611. The first belt 610 is installed on the frame 100 and is located below the first bagging group 510. The first detection roller 611 is rotatably connected to the frame 100 through a swing arm bracket and abuts against the first belt 610. It should be noted that the swing arm bracket is an existing conventional structure; when a facial mask bag passes between the first detection roller 611 and the first belt 610, the first detection roller 611 swings upward with the swing arm bracket as the radius. The upward swing amplitude of the first detection roller 611 is different when the mask bag is empty and passes between the first detection roller 611 and the first belt 610, and when the mask bag is filled with a mask and passes between the first detection roller 611 and the first belt 610, that is, the upward swing displacement is also different. The first displacement sensor can determine whether the mask bag is empty by detecting the displacement of the first detection roller 611.

[0092] The second measuring group includes a second belt 620, a second detection roller 621, a second infrared sensor for detecting the passing of finished bags, and a second displacement sensor for detecting the displacement of the second detection roller 621. The second belt 620 is installed on the frame 100 and is located below the second bagging group 520. The second belt 620 is located above the first belt 610. The second detection roller 621 is rotatably connected to the frame 100 through a swing arm bracket and abuts against the second belt 620.

[0093] The facial mask folding machine also includes a conveyor belt 700 located on one side of the frame 100. The conveying end of the first belt 610 is connected to the conveying starting point of the conveyor belt 700, and the conveying end of the second belt 620 is located above the first belt 610. The conveyor belt 700 is provided to receive the facial mask bags containing facial masks conveyed by the first belt 610 and the second belt 620.

[0094] It should be noted that, in this embodiment, the first folding group, the first conveying device 220, the first bagging group 510 and the first testing group are the working components of the first station of the facial mask cloth folding machine, and the second folding group, the second conveying device 230, the second bagging group 520 and the second testing group are the working components of the second station of the facial mask cloth folding machine. In this embodiment, the working components of the first station and the working components of the second station are arranged in a straight line along the conveying direction of the conveying group. The working components of the first station and the working components of the second station can work at the same time. It should be understood that similar working components of the third station, the fourth station and so on are added by the same logic. The added structure is also within the scope of protection of this patent; of course, although the present embodiment gives the working components of the first station and the working components of the second station, the working components of the second station can also be removed, and only the working components of the first station are set. The removed structure is also within the scope of protection of this patent.

[0095] The present invention has been described in detail above with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the existing technology, and all of these modifications fall within the scope of protection of the present invention.

Claims

1. A facial mask cloth folding machine, comprising a frame, on which are mounted a conveying group, a first folding group, and a first bagging group connected to the first folding group, characterized in that: The conveying group includes an initial conveying device and a first conveying device which have the same conveying direction and are arranged in a straight line along the conveying direction; a first gap is formed between the initial conveying device and the first conveying device; The first folding group includes a first cylinder whose cylinder body is fixed to the frame and whose piston rod is arranged vertically, a first folding plate fixed to the piston rod of the first cylinder and in the same vertical plane as the first gap, and a first forming groove located below the first gap and used to accommodate the first folding plate; a cavity is defined in the first folding plate, the cavity is connected to a negative pressure device, and a suction hole group connected to the cavity is defined at the lower end of the first folding plate; The initial conveying device and the first conveying device both include an air suction conveying group, and the air suction conveying group includes a conveying steel belt, a rubber belt and an air suction device; in the same air suction conveying group, the conveying steel belt is installed on the frame and the conveying steel belt is provided with a plurality of first air vents, the rubber belt is sleeved on the outer surface of the conveying steel belt and is provided with a plurality of second air vents, and the plurality of second air vents are connected to the plurality of first air vents in a one-to-one correspondence, the air suction device is installed on the frame and has an air suction port opening upward, and the inner surface of the conveying steel belt covers the air suction port.

2. The facial mask cloth folding machine according to claim 1, characterized in that: The initial conveying device also includes an initial cloth roller group installed on the frame, In the initial conveying device, the initial cloth roller group is located on the upper side of the rubber belt; the initial cloth roller group includes at least one initial front cloth roller located on the side of the suction device away from the first gap and at least one initial rear cloth roller located on the side of the suction device close to the first gap, the initial front cloth rollers constitute an initial front cloth roller group, and the initial rear cloth rollers constitute an initial rear cloth roller group, and the minimum horizontal distance from the initial front cloth roller group to the suction device and the minimum horizontal distance from the initial rear cloth roller group to the suction device are both less than the length of the facial mask cloth; The first conveying device also includes a first cloth roller group installed on the frame, In the first conveying device, the first cloth roller group is located on the upper side of the rubber belt, and the first cloth roller group includes at least one first front cloth roller located on the side of the suction device close to the first gap and at least one first rear cloth roller located on the side of the suction device away from the first gap, the first front cloth rollers constitute a first front cloth roller group, and the first rear cloth rollers constitute a first rear cloth roller group, and the minimum horizontal distance from the first front cloth roller group to the suction device and the minimum horizontal distance from the first rear cloth roller group to the suction device are both less than the length of the facial mask cloth; The distance between the initial rear cloth roller group and the first front cloth roller group is less than the length of the facial mask cloth.

3. The facial mask cloth folding machine according to claim 2, characterized in that: The number of the initial front cloth rollers is greater than 1, and the initial front cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent initial front cloth rollers is less than the length of the facial mask cloth; the number of the initial rear cloth rollers is greater than 1, and the initial rear cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent initial rear cloth rollers is less than the length of the facial mask cloth; The number of the first front cloth rollers is greater than 1, and the first front cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent first front cloth rollers is less than the length of the facial mask cloth; the number of the first rear cloth rollers is greater than 1, and the first rear cloth rollers are arranged in sequence along the conveying direction, and the distance between adjacent first rear cloth rollers is less than the length of the facial mask cloth.

4. The facial mask cloth folding machine according to claim 2, characterized in that: In the initial conveying device, a third gap adapted to the thickness of the facial mask cloth is formed between each of the initial front cloth rollers and each of the initial rear cloth rollers and the rubber belt; In the first conveying device, a fourth gap adapted to the thickness of the facial mask cloth is formed between each of the first front cloth rollers and each of the first rear cloth rollers and the rubber belt.

5. The facial mask cloth folding machine according to claim 1, characterized in that: In the first folding plate, there are multiple air intake hole groups, and the multiple air intake hole groups are arranged in a straight line along the length direction of the first folding plate; each air intake hole group includes a first air hole, a second air hole and a third air hole; in the same air intake hole group, the first air hole is arranged vertically and the opening faces downward, the upper end of the second air hole is connected to the cavity, and the second air hole gradually moves away from the center plane of the first folding plate from the upper end to the lower end; the third air hole and the second air hole are symmetrically arranged with the center plane of the first folding plate as the center.

6. The facial mask cloth folding machine according to claim 1, characterized in that: The rack is also provided with an empty bag detection group, which includes a first detection group that takes over from the first bagging group; The first detection group includes a first belt, a first detection roller, a first infrared sensor for detecting the passing of finished bags, and a first displacement sensor for detecting the displacement of the first detection roller. The first belt is installed on the frame and is located below the first bagging group. The first detection roller is rotatably connected to the frame through a swing arm bracket and abuts against the first belt.

7. A facial mask cloth folding machine according to claim 6, characterized in that: The facial mask cloth folding machine also includes a conveyor belt located on one side of the frame, and the conveying end point of the first belt is connected with the conveying starting point of the conveyor belt.

8. The facial mask cloth folding machine according to claim 2, characterized in that: The frame is provided with a film cloth detection device, and the film cloth detection device includes a first film cloth sensor located near the first folding plate; The first membrane cloth sensor is installed on the frame and is located on the upper side of the first conveying device. The projections of the first membrane cloth sensor and the first cloth roller on the horizontal plane are staggered.

9. A facial mask cloth folding machine according to claim 8, characterized in that: A first sensor frame is fixed on the frame, the first membrane cloth sensor is horizontally slidably connected to the first sensor frame, and a sliding locking device is provided on the first membrane cloth sensor; The outer surface of the rubber belt of the first conveying device is divided into a first color area and a second color area, the first color area and the second color area are arranged side by side along the width direction of the rubber belt, the first color area is painted with a first color, and the second color area is painted with a second color.

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