Facial mask counting device

Abstract

The present invention discloses a facial mask counting device, which includes a material trough mechanism, a conveying mechanism, a material picking mechanism, a counting sensor and a material receiving mechanism. Facial masks stacked along the extension direction of the accommodating trough in the material trough mechanism are sucked out by the material picking mechanism and placed on the conveying mechanism, and are counted by the counting sensor on the conveying mechanism. Subsequently, the facial masks are received by the material receiving mechanism located at the tail end of the conveying mechanism. When the facial masks in the material receiving mechanism reach a set number, the material picking mechanism stops picking up the materials, and the facial masks in the material receiving mechanism can be used for subsequent packaging, thereby solving the problems of low packaging efficiency and easy counting errors caused by the inability of existing facial mask packaging equipment to automatically count.

Description

Technical Field

[0001] The present invention relates to the field of facial mask packaging equipment, in particular to a facial mask counting device. Background Art

[0002] Packaging involves encapsulating the contents of a product by placing them in a bag, box, or other container, using a specific method, for product protection and convenient storage and transportation. To improve packaging efficiency, a packaging machine is typically designed for each product, enabling automated packaging.

[0003] Existing facial mask production equipment typically places the mask base material into a packaging bag, then fills it, seals the filled bag, and allows the masks to flow directly out of the machine. This requires manual counting of the masks, which are then stacked and packed into boxes. This results in low production efficiency and is prone to errors. Summary of the Invention

[0004] The main purpose of the present invention is to propose a facial mask counting device, which aims to solve the problems of low packaging efficiency and easy counting errors caused by the inability of existing facial mask packaging equipment to automatically count.

[0005] To achieve the above objectives, the present invention provides a facial mask counting device, which comprises:

[0006] A trough mechanism, comprising a receiving trough for receiving the facial mask;

[0007] A conveying mechanism, a conveyor belt for conveying the facial mask, wherein the conveyor belt comprises an inlet end opposite to the receiving slot and an outlet end away from the receiving slot;

[0008] A material taking mechanism, used for taking out the facial mask from the containing tank and placing it on the conveying mechanism;

[0009] A counting sensor is provided on the conveying mechanism and is used to detect the number of facial masks passing through;

[0010] The material receiving mechanism includes a material receiving trough arranged on one side of the discharge end, and the material receiving trough is used to receive the facial mask output by the conveying mechanism.

[0011] In some embodiments, the conveying mechanism includes two conveyor belts arranged opposite to each other, and the picking mechanism includes a picking rod arranged between the two conveyor belts, and a suction nozzle arranged on the picking rod;

[0012] The picking rod has a first station for docking the suction nozzle with the mask in the receiving groove, and a second station for placing the mask on the conveyor belt. The picking mechanism also includes a first driving member for driving the picking rod to rotate between the first station and the second station.

[0013] In some embodiments, the receiving groove is arranged obliquely downward in the direction toward the feeding end, and the facial masks are stacked along the extending direction of the receiving groove;

[0014] The ends of the two groove walls of the receiving groove facing the feeding end extend toward each other to form a limiting portion for restricting the facial mask from sliding out. The material trough mechanism also includes a material pressing component slidably arranged in the receiving groove, and the material pressing component is used to press the stacked facial masks under the action of gravity.

[0015] In some embodiments, the conveying mechanism further includes a first sensor provided on one side of the conveyor belt for detecting whether a facial mask passes by.

[0016] In some embodiments, the facial mask includes a packaging bag and a substrate placed on the packaging bag. The facial mask counting device also includes a thickness measuring mechanism provided above the conveyor belt and corresponding to the first sensor. The thickness measuring mechanism is used to measure the thickness of the facial mask passing thereunder to determine whether the packaging bag contains a substrate.

[0017] In some embodiments, the thickness measuring mechanism includes:

[0018] A displacement sensor comprising a sensor body and a detection portion extending downward from the sensor body;

[0019] A lifting drive member, used for driving the displacement sensor downward to a set height so that the detection portion contacts the facial mask below;

[0020] The displacement sensor is used to obtain thickness information of the lower film according to the movement amount of the detection part relative to the sensor body.

[0021] In some embodiments, the thickness measuring mechanism further comprises:

[0022] a mounting block, provided at the driving end of the lifting drive member, for mounting the displacement sensor;

[0023] A guide rod is provided on the mounting plate and extends vertically downward;

[0024] a pressing block, slidably connected to the guide rod, the pressing block being provided with a notch or a through hole for the detection portion to pass through;

[0025] The compression spring is sleeved on the guide rod, and its elastic force causes the compression block to be located at the lower end of the guide rod.

[0026] In some embodiments, the inner bottom surface of the receiving trough is lower than the discharge end of the conveyor belt, so that the facial masks falling into the receiving trough are stacked from bottom to top.

[0027] In some embodiments, the receiving trough includes an inlet end corresponding to the conveyor belt and an outlet end away from the inlet end;

[0028] The facial mask counting device also includes a pushing mechanism, which includes a pushing piece arranged in the material receiving trough, and a pushing driving piece for driving the pushing piece to move in the material receiving trough to push the facial mask out of the outlet end.

[0029] In some embodiments, the facial mask counting device further includes a first adjustment component for adjusting the width of the receiving groove, and / or a second adjustment component for adjusting the spacing of the conveyor belts.

[0030] The present invention provides a facial mask counting device including a material trough mechanism, a conveying mechanism, a material picking mechanism, a counting sensor and a material receiving mechanism, so that the facial masks stacked along the extension direction of the receiving trough in the material trough mechanism are sucked out by the material picking mechanism and flipped at a certain angle and placed on the conveying mechanism, and are counted by the counting sensor on the conveying mechanism. Subsequently, the facial masks are received by the material receiving mechanism located at the tail end of the conveying mechanism. When the facial masks in the material receiving mechanism reach the set number, the material picking mechanism stops picking up the materials, and the facial masks in the material receiving mechanism can be used for subsequent packaging, thereby solving the problems of low packaging efficiency and easy counting errors caused by the inability of existing facial mask packaging equipment to automatically count. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of a facial mask counting device in one embodiment of the present invention;

[0032] Figure 2 for Figure 1 A schematic structural diagram of the transmission mechanism in the embodiment;

[0033] Figure 3 for Figure 1 A structural diagram of the embodiment from another perspective;

[0034] Figure 4 for Figure 1 A schematic structural diagram of the material taking mechanism in the embodiment;

[0035] Figure 5 for Figure 1 A schematic structural diagram of a thickness measuring mechanism in an embodiment;

[0036] Figure 6 for Figure 5 A schematic structural diagram of a thickness measuring mechanism in an embodiment;

[0037] Figure 7 for Figure 1 A schematic structural diagram of the material pushing mechanism in the embodiment;

[0038] Figure 8 for Figure 1 Schematic diagram of the structure of the first adjustment component in the embodiment.

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings to clearly and completely describe the solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0041] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship and movement status between the various components in a certain specific posture, that is, as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0042] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0043] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] The present invention proposes a facial mask counting device, referring to Figures 1 to 8 , the facial mask counting device comprises:

[0045] The trough mechanism 10 includes a receiving trough 11 for receiving the facial mask;

[0046] A conveying mechanism 20, a conveyor belt 22 for conveying the facial mask, wherein the conveyor belt 22 includes an inlet end opposite to the receiving tank 11 and an outlet end away from the receiving tank 11;

[0047] The material taking mechanism 30 is used to take out the facial mask from the receiving tank 11 and place it on the conveying mechanism 20;

[0048] A counting sensor 71 is provided on the conveying mechanism 20 and is used to detect the number of facial masks passing through;

[0049] The material receiving mechanism 50 includes a material receiving trough 51 provided on one side of the material discharging end, and the material receiving trough 51 is used to receive the facial mask output by the conveying mechanism 20.

[0050] In this embodiment, the receiving groove 11 is arranged obliquely downward toward the feeding end, and the facial masks are stacked along the extension direction of the receiving groove 11. The ends of the two groove walls of the receiving groove 11 facing the feeding end extend toward each other to form a limit portion that restricts the facial masks from sliding out, and the areas on the two side edges of the facial masks are restricted by the limit members. The trough mechanism 10 also includes a pressing assembly 12 slidably arranged in the receiving groove 11, and the pressing assembly 12 is used to compress the stacked facial masks under the action of gravity. The pressing assembly 12 includes an L-shaped pressing member with a roller at its bottom. The bottom of the receiving groove 11 is also provided with a limiting groove corresponding to the above-mentioned roller, and the extension direction of the limiting groove is consistent with the extension direction of the receiving groove 11. The upper part of the pressing member contacts the facial masks to compress the stacked facial masks, ensuring that the facial masks remain vertical in the receiving groove 11 or maintain a certain angle with the horizontal plane.

[0051] The conveying mechanism 20 includes two conveyor belts 22 arranged opposite each other. The conveying direction and speed of the two conveyor belts 22 are consistent, and specifically, synchronous belts can be used. The conveying mechanism 20 also includes a conveyor wheel connected to the conveyor belts 22 and a first motor 23 that drives the conveyor wheel. The first motor 23 is preferably a stepper motor. The synchronous wheel 26 at the same end of the two conveyor belts 22 is mounted on the same rotating shaft 25. The first motor 23 is connected to the rotating shaft 25 to drive the rotating shaft 25 to rotate. Specifically, two parallel and vertical mounting plates 21 are provided, with one conveyor belt 22 and its corresponding synchronous wheel 26 mounted on one mounting plate 21, and the other conveyor belt 22 and its corresponding synchronous wheel 26 mounted on the other mounting plate 21.

[0052] The material-retrieving mechanism 30 includes a retrieval rod 33 positioned between the two conveyor belts 22, and a suction nozzle 35 mounted on the retrieval rod 33. The retrieval rod 33 has a first station for docking the suction nozzle 35 with the facial mask in the receiving tank 11, and a second station for placing the facial mask on the conveyor belt 22. The retrieval mechanism 30 also includes a first drive member 34 that drives the retrieval rod 33 between the first and second stations. In this embodiment, the retrieval mechanism 30 includes a mounting seat 31 positioned near the lower exit of the receiving tank 11, and a connecting shaft 32 extending through the mounting seat 31, with the connecting shaft 32 being perpendicular to the conveying direction of the conveyor belt 22. One end of the retrieval rod 33 is mounted on the connecting shaft 32, and the other end is provided with a suction nozzle 35. The suction nozzle 35 is connected to a negative pressure pump to suck up the facial mask packaging. The end of the connecting shaft 32 away from the material picking rod 33 is connected to the first drive member 34, which is preferably a stepper motor. The stepper motor and the connecting shaft 32 are connected by an angle converter. When the rotating shaft 25 is in the first station, it can absorb the facial mask in the receiving tank 11. It is then driven by the first drive member 34 to rotate toward the second station. The edge area of ​​the facial mask docked with the suction nozzle 35 is pulled out from between the limiting portion of the receiving tank 11 and the adjacent facial mask. After the restriction is released, the facial mask is taken out of the receiving tank 11 as a whole. The material picking rod 33 then carries the facial mask to the first station docked with the feed end of the conveyor belt 22 and is placed flat on the conveyor belt 22 so that the conveyor belt 22 can transport the facial mask. The material picking rod 33 then returns to the first station again to carry out the next material picking.

[0053] Counting sensor 71 is located above conveyor belt 22 and uses a fiber optic sensor with its detection direction facing downward. It is a through-beam sensor. When there is no mask below, counting sensor 71 receives a light signal. When a mask passes by, it blocks the through-beam light path, and the fiber optic sensor cannot detect the light signal. When the value obtained by dividing the mask length by the conveyor belt 22's speed equals the duration of the light signal disappearance (assuming the conveyor belt 22 is moving at a constant speed), it indicates that a mask has passed, and a count is performed.

[0054] The receiving trough 51 includes an inlet end corresponding to the conveyor belt 22 and an outlet end remote from the inlet end. The inner bottom surface of the receiving trough 51 is lower than the outlet end of the conveyor belt 22, allowing the facial masks to fall into the receiving trough 51 and stack upwards. A lifting gate 52 driven by a pneumatic cylinder is also provided at the outlet end of the receiving trough 51 to prevent the facial masks from directly escaping the receiving trough 51 due to inertia, thus providing a certain blocking effect. When the required number of facial masks in the receiving trough 51 is reached, the lifting gate 52 rises to remove the facial masks from the outlet end.

[0055] The present invention provides a facial mask counting device including a trough mechanism 10, a conveying mechanism 20, a material picking mechanism 30, a counting sensor 71 and a material receiving mechanism 50, so that the facial masks stacked along the extension direction of the receiving trough 11 in the trough mechanism 10 are sucked out by the material picking mechanism 30 and flipped at a certain angle and placed on the conveying mechanism 20, and are counted by the counting sensor 71 on the conveying mechanism 20. Subsequently, the facial masks are received by the material receiving mechanism 50 located at the tail end of the conveying mechanism 20. When the facial masks in the material receiving mechanism 50 reach the set number, the material picking mechanism 30 stops picking up the materials, and the facial masks in the material receiving mechanism 50 can be used for subsequent packaging, thereby solving the problem that the existing facial mask packaging equipment cannot count automatically, resulting in low packaging efficiency and easy counting errors.

[0056] In some embodiments, reference Figures 1 to 8 The facial mask includes a packaging bag and a substrate placed on the packaging bag. The facial mask counting device also includes a thickness measuring mechanism 40 provided above the conveyor belt 22 and corresponding to the first sensor 72. The thickness measuring mechanism 40 is used to measure the thickness of the facial mask passing thereunder to determine whether the packaging bag contains a substrate.

[0057] Reference Figure 6 In this embodiment, the thickness measuring mechanism 40 includes a displacement sensor 43 and a lifting drive member 41. The displacement sensor 43 includes a sensor body 431 and a detection portion 432 extending downward from the sensor body 431; the lifting drive member 41 is used to drive the displacement sensor 43 downward to a set height so that the detection portion 432 abuts against the mask below; the displacement sensor 43 is used to obtain thickness information of the mask below based on the movement of the detection portion 432 relative to the sensor body 431.

[0058] In some embodiments, reference Figures 1 to 8, the conveying mechanism 20 also includes a first sensor 72 provided on one side of the conveyor belt 22 for detecting whether a facial mask passes by. The first sensor 72 is a reflective sensor. When there is no facial mask above it, the counting sensor 71 cannot receive the reflected light signal. When a facial mask passes by, the reflected light signal can be detected. The displacement sensor 43 is provided above the first sensor 72. When the first sensor 72 detects that a facial mask passes by, the conveyor belt 22 stops. The lifting drive member 41 can be an air cylinder or an electric cylinder, and its moving end is connected to the displacement sensor 43, and drives the displacement sensor 43 downward, so that the detection part 432 abuts against the facial mask. The stroke of the lifting drive member driving the displacement sensor 43 is fixed. The detection part 432 first abuts against the facial mask. As the sensor body continues to descend, the detection part 432 moves relative to the sensor body. When the packaging bag contains a substrate, the movement of the detection portion 432 within the sensor body is within a certain range. When the packaging bag contains no substrate, i.e., the facial mask is empty, the movement is less than this range, allowing the thickness measurement mechanism 40 to detect whether the facial mask is empty. It is worth noting that when the detection portion 432 is separated from the facial mask, it returns to its zero position within the sensor body 431, and the movement is zero.

[0059] In some embodiments, reference Figures 1 to 8 The thickness measuring mechanism 40 also includes: a mounting block 42, which is provided at the driving end of the lifting drive member 41 and is used to install the displacement sensor 43; a guide rod 45, which is provided on the mounting block 42 and extends vertically downward; a pressure block 46, which is slidably connected to the guide rod 45, and the pressure block 46 is provided with a slot or a through hole for the detection part 432 to pass through; a compression spring 44, which is sleeved on the guide rod 45, and its elastic force causes the pressure block 46 to be located at the lower end of the guide rod 45.

[0060] In this embodiment, when the lifting drive member 41 drives the mounting block 42 downward, the pressing block 46 first contacts the facial mask. As the mounting block 42 continues to descend, the compression spring 44 is compressed, and the displacement sensor 43 continues to descend with it until the detection portion 432 abuts the facial mask. The pressing block 46 smoothes the contact surface between the facial mask and the displacement sensor 43, preventing warping of the packaging bag from affecting the detection results of the displacement sensor 43.

[0061] In some embodiments, reference Figures 1 to 8The facial mask counting device further includes a stopping mechanism 80 disposed above the conveyor belt 22 and located to one side of the thickness measuring mechanism 40. The stopping mechanism 80 includes a lifting cylinder and a stopping member disposed on the push rod of the lifting cylinder. The push rod of the lifting cylinder is vertically downwardly disposed to drive the stopping member downward onto the conveyor belt 22 to stop the passing facial mask, ensuring that the measurement area of ​​the thickness measuring mechanism 40 remains in the center of the facial mask, thereby avoiding erroneous detection results due to detection of the edge of the packaging bag. In other words, the packaging bag may contain a substrate, but the actual detection position is at the edge of the packaging bag, resulting in a detection result of the packaging bag being empty.

[0062] In some embodiments, reference Figures 1 to 8 The receiving trough 51 includes an inlet end corresponding to the conveyor belt 22 and an outlet end away from the inlet end; the facial mask counting device also includes a pushing mechanism 60, which includes a pushing member 63 disposed in the receiving trough 51 and a pushing driving member 61 for driving the pushing member 63 to move in the receiving trough 51 to push the facial mask out of the outlet end. In this embodiment, the receiving trough 51 includes two L-shaped trough plates, which are symmetrically arranged and include vertically arranged trough walls and extensions disposed at the lower ends of the trough walls. The two extensions extend toward each other to receive the facial mask. A notch for the movement of the material-removing member is formed between the two extensions, and the lifting door 52 is used to prevent the facial mask from sliding out. Specifically, an electric cylinder can be installed below the conveyor belt 22 as a pusher drive 61. A mounting rod 62 is installed at its movable end, and the pusher 63 is installed at the end of the mounting rod 62. The ejector is also L-shaped, including a supporting portion for supporting the mask and a pushing portion for pushing the mask. The height of the pushing portion is higher than the stacking thickness of the mask. During the pushing process, the lifting door 52 rises to allow the mask to be pushed out.

[0063] In some embodiments, reference Figures 1 to 8 The facial mask counting device further includes a first adjustment component for adjusting the width of the receiving groove 11, and / or a second adjustment component for adjusting the spacing of the conveyor belt 22. In this embodiment, the receiving groove 11 includes a bottom plate 14 and two oppositely arranged groove wall plates 111. The bottom of the groove wall plates 111 extends downward and passes through the bottom plate 14 to form a connecting portion. The first adjustment component includes a first guide rod 18 slidably connected to the two connecting portions, and a first screw rod 17 threadedly connected to the two connecting portions. The first screw rod 17 has a rotation direction opposite to that of the threads corresponding to the two connecting portions. A first hand wheel is provided at one end of the first screw rod 17. The spacing between the two groove wall plates 111 can be adjusted by rotating the first hand wheel.

[0064] In this embodiment, the structure of the second adjustment mechanism is the same as that of the first adjustment mechanism. In the conveying assembly, two opposite mounting plates 21 are arranged on the second guide rod 27 for sliding connection, and are threadedly connected to the second screw 24. The second screw 24 has opposite rotation directions to the threads corresponding to the two mounting plates 21. A second hand wheel is provided at one end of the second screw 24. By turning the second hand wheel, the spacing between the two mounting plates 21 can be adjusted, that is, the spacing between the two conveyor belts 22 can be adjusted to suit facial masks of different widths.

[0065] In some embodiments, reference Figures 1 to 8 The trough mechanism 10, the material picking mechanism 30, the conveying mechanism 20, the counting sensor 71, the thickness measuring mechanism 40, the material receiving mechanism 50, and the material pushing mechanism 60 can constitute a set of facial mask counting and thickness measuring modules. The facial mask counting device can include multiple facial mask counting and thickness measuring modules arranged side by side. Correspondingly, multiple side-by-side receiving troughs 11 are provided. Multiple side-by-side material picking rods 33 and corresponding suction nozzles 35 are provided on the connecting shaft 32. Each material picking rod 33 corresponds to a receiving trough 11. Similarly, multiple sets of side-by-side conveyor belts 22, counting sensors 71, thickness measuring mechanisms 40, material receiving mechanisms 50, and material pushing mechanisms 60 are provided.

[0066] Correspondingly, the first adjustment mechanism also includes two mounting brackets 16, each slidably connected to the first guide rod 18 and rotationally connected to the first screw rod 17. The connection portion of the slot wall plate 111 on the same side is mounted on one mounting bracket 16, while the connection portion of the slot wall plate 111 on the other side is mounted on the other mounting bracket 16. The threaded holes corresponding to the first screw rod 17 on the two mounting brackets 16 have opposite threaded directions. This allows for simultaneous adjustment of the widths of multiple receiving slots 11. The first screw rod 17 and the first guide rod 18 are mounted on the first frame at both ends.

[0067] Correspondingly, multiple sets of mounting plates 21 are mounted on the second screw rod 24, with two mounting plates 21 forming a set. Within each set of mounting plates 21, the threaded holes corresponding to the second screw rod 24 on the mounting plates 21 on the same side have opposite threaded holes. This allows for synchronous adjustment of the spacing of the conveyor belts 22 in the same set. The trough plates of the receiving trough 51 are also mounted on the mounting plates 21, so that when adjusting the spacing of the conveyor belts 22 in the same set, the trough width of the receiving trough 51 is also adjusted synchronously.

[0068] It is worth noting that when the spacing of the above-mentioned conveyor belt 22 is adjusted, the synchronous wheel 26 thereon slides correspondingly along the rotating shaft 25. Therefore, the synchronous wheel 26 and the rotating shaft 25 are connected by a keyway to meet the above-mentioned sliding requirements.

[0069] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields, is included in the scope of protection of the present invention.

Claims

1. A facial mask counting device, characterized in that: include: A trough mechanism, comprising a receiving trough for receiving a facial mask, wherein the facial mask comprises a packaging bag and a substrate placed on the packaging bag; A conveying mechanism, comprising a conveyor belt for conveying facial masks and a first sensor provided on one side of the conveyor belt for detecting whether a facial mask passes through, the conveyor belt comprising an inlet end opposite to the receiving tank and an outlet end away from the receiving tank; A material taking mechanism, used for taking out the facial mask from the containing tank and placing it on the conveying mechanism; A counting sensor is provided on the conveying mechanism and is used to detect the number of facial masks passing through; A material receiving mechanism, comprising a material receiving trough provided on one side of the material discharging end, the material receiving trough being used to receive the facial mask outputted by the conveying mechanism; a thickness measuring mechanism, disposed above the conveyor belt and corresponding to the first sensor, the thickness measuring mechanism being used to measure the thickness of the facial mask passing thereunder to determine whether the packaging bag contains a substrate; a stop mechanism, disposed above the conveyor belt and on one side of the thickness measuring mechanism, the stop mechanism comprising a lifting cylinder and a stop member disposed on a push rod of the lifting cylinder, the push rod of the lifting cylinder being vertically downwardly disposed to drive the stop member downwardly onto the conveyor belt to stop the passing facial mask so that the center of the facial mask is in the measuring area of ​​the thickness measuring mechanism; The conveying mechanism includes two conveyor belts arranged opposite to each other, and the picking mechanism includes a picking rod arranged between the two conveyor belts, and a suction nozzle arranged on the picking rod; The picking rod has a first station for docking the suction nozzle with the mask in the receiving tank, and a second station for placing the mask on the conveyor belt. The picking mechanism also includes a first driving member for driving the picking rod to rotate between the first station and the second station. The receiving groove is arranged obliquely downward in the direction toward the feeding end, and the facial masks are stacked along the extending direction of the receiving groove; The ends of the two groove walls of the receiving groove facing the feeding end extend toward each other to form a limit portion that restricts the facial mask from sliding out. The material trough mechanism also includes a material pressing component slidably arranged in the receiving groove, and the material pressing component is used to press the stacked facial masks under the action of gravity; The thickness measuring mechanism comprises: A displacement sensor comprising a sensor body and a detection portion extending downward from the sensor body; A lifting drive member, used for driving the displacement sensor downward to a set height so that the detection portion contacts the facial mask below; The displacement sensor is used to obtain thickness information of the lower face mask according to the movement of the detection part relative to the sensor body; The thickness measuring mechanism further comprises: a mounting block, provided at the driving end of the lifting drive member, for mounting the displacement sensor; A guide rod is provided on the mounting block and extends vertically downward; a pressing block, slidably connected to the guide rod, the pressing block being provided with a notch or a through hole for the detection portion to pass through; A compression spring is sleeved on the guide rod, and its elastic force causes the compression block to be located at the lower end of the guide rod; The inner bottom surface of the receiving trough is lower than the discharge end of the conveyor belt, so that the facial masks dropped into the receiving trough are stacked from bottom to top; The receiving trough includes an inlet end corresponding to the conveyor belt and an outlet end away from the inlet end; The facial mask counting device further includes a material pushing mechanism, the material pushing mechanism including a material pushing member disposed in the material receiving trough, and a material pushing driving member for driving the material pushing member to move in the material receiving trough to push the facial mask out of the outlet end; The facial mask counting device also includes a first adjustment component for adjusting the width of the accommodating groove, and a second adjustment component for adjusting the spacing of the conveyor belts.

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