Automatic feeding device for ear loop machine

Abstract

An automatic feeding device for an earloop machine is disclosed. The earloop machine includes a frame, a mask piece conveying device, an earloop storage device, a welding device, and a mask collecting device mounted on the frame. The mask piece conveying device includes continuously arranged mask piece placement positions. The automatic feeding device includes a mask piece feeding bin mechanism and an adsorption feeding mechanism located at the front end of the mask piece conveying device. Utilizing the principle of airflow creating negative pressure in a localized space by driving surrounding airflow, the mask pieces are adsorbed onto suction cups for feeding. This invention employs fully automated control, achieving a high degree of automation, reducing labor intensity, and improving production efficiency. Its compact and simple structure saves manpower, reduces costs, and increases efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of mask production equipment and relates to an automatic feeding device of an ear loop machine. Background Art

[0002] When respiratory infectious diseases are prevalent or when working in dusty and other polluted environments, germs and dust in the air can enter the human lungs through breathing, causing serious damage to the body. Masks are a kind of sanitary protective equipment used to protect the respiratory system from haze, exhaust gas, dust, germs, etc.; they are mainly composed of non-woven fabrics, melt-blown fabrics, activated carbon fabrics, ear straps, nose bridge strips, etc. Generally refers to a device worn on the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. Masks have a certain filtering effect on the air entering the lungs. When respiratory infectious diseases are prevalent, when working in dusty and other polluted environments, wearing masks has a very good filtering and blocking effect. When wearing a mask, it should fit tightly with the wearer's face so that germs, dust, etc. cannot easily leak in. The mask is equipped with ear straps, which fix the mask to the wearer's head.

[0003] In the prior art, the connection between the ear strap and the mask piece is mostly ultrasonic welding, and the commonly used equipment is a mask ear strap machine; the mask ear strap machine usually includes a frame, on which a mask piece conveying device, an ear strap storage device, a welding device and a collecting device are mainly arranged; when working, the operator manually places the mask piece on the mask piece conveying device; then the mask piece is conveyed to the welding device through the mask piece conveying device, and the ear strap and the mask piece are welded. This semi-automatic machine positioning device is easy to offset because the operator manually places the mask piece, and the defective product is generally 2%, and 2,500 pieces are produced per hour, and the production efficiency is low; and both hands need to be close to the placing and turning device during operation, which is prone to work injuries.

[0004] Therefore, how to solve the above problems is an important research topic for those skilled in the art. Summary of the invention

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide an automatic feeding device for an ear loop machine which has a high degree of automation, effectively reduces the labor intensity of workers, and improves production efficiency.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides an automatic feeding device for an ear band machine, the ear band machine comprising a frame, a mask piece conveying device arranged on the frame, an ear band storage device, a welding device and a mask collecting device; the mask piece conveying device comprises continuously arranged mask piece placement positions; the automatic feeding device comprises a mask piece feeding bin mechanism and an adsorption feeding mechanism arranged at the front end of the mask piece conveying device of the ear band machine;

[0007] The mask sheet feeding bin mechanism includes a bin for accommodating mask sheets and a lifting cylinder; the bin is mainly composed of two vertical plates symmetrically arranged at a distance and a support plate arranged between the two vertical plates; the action end of the lifting cylinder acts on the support plate and drives the support plate to move up and down in the bin space formed by the two vertical plates; and also includes a fixed plate, through which the mask sheet feeding bin mechanism is fixedly connected to the frame of the ear band machine;

[0008] The adsorption and feeding mechanism includes a support frame, a suction cup, a lifting cylinder and a rotating motor arranged on the frame of the ear band machine; the support frame is fixed on the frame of the ear band machine; there are two suction cups, and the two suction cups are fixedly connected via a connecting plate, and one of the two suction cups is located directly above the mask piece placement position at the front end of the frame, and the other suction cup is located directly above the silo; multiple air holes are provided on the bottom surface of the suction cup; it also includes a motor fixing seat, the rotating motor is fixed on the motor fixing seat, the action end of the rotating motor acts on the connecting plate, and drives the connecting plate to rotate 180 degrees, and drives the two suction cups to be alternately located directly above the mask piece placement position and directly above the silo; the lifting cylinder is fixed on the support frame, and the action end of the lifting cylinder acts on the motor fixing seat, and drives the motor fixing seat to drive the connecting plate to reciprocate up and down, thereby driving the two suction cups to reciprocate up and down.

[0009] In the above scheme, the relevant contents are explained as follows:

[0010] 1. In the above scheme, there are two fixed plates, which are symmetrically arranged on both sides of the mask piece feeding bin mechanism and fixedly connected to the frame of the mask ear strap machine.

[0011] 2. In the above scheme, the support frame is fixed to the feeding front end of the ear strap machine frame via a base fixing plate.

[0012] 3. In the above scheme, the suction cup is a rectangular structure whose bottom surface matches the shape of the mask piece, and inflation ports are provided on the top and sides of the suction cup; the suction cup is fixedly connected to the connecting plate via an X-shaped connecting block.

[0013] 4. In the above solution, the inflation port is connected to the air source.

[0014] 5. In the above solution, the air holes are long waist holes symmetrically arranged on the bottom surface of the suction cup.

[0015] 6. The above scheme also includes a lifting cylinder action plate; the action end of the lifting cylinder acts on the lifting cylinder action plate, and the lifting cylinder action plate is fixedly connected to the motor fixing seat via four columns.

[0016] 7. The above scheme further comprises a fiber optic sensor, which is fixed on two vertical plates of the silo corresponding to the top of the silo.

[0017] 8. The above scheme also includes a PIC control system, and the lifting cylinder, the lifting cylinder and the rotating motor are all electrically connected to the PLC control system.

[0018] The working principle of the present invention is as follows: when working, the mask sheet bin is in the initial position, and the mask sheet is placed in the bin until the bin is full; when the equipment start button is pressed, the lifting cylinder in the adsorption feeding mechanism descends, and the suction cup on the corresponding bin starts to work, and the air holes on the suction cup blow air in the circumferential direction of the mask sheet in the bin, and the mask sheet is adsorbed on the suction cup by utilizing the principle that the air flow drives the surrounding air flow to form a negative pressure in the local space; at this time, the lifting cylinder rises, and at the same time, the optical fiber sensor on the side of the bin senses and sends a signal, and the lifting cylinder acts to lift the support plate under the bin upward, so that the uppermost mask sheet in the bin is in place; and at the same time, after the rotary motor rotates 180°, the lifting cylinder descends, and the suction cup that has just adsorbed the mask sheet is located on the mask sheet placement position, and the suction cup is cut off, and the mask sheet adsorbed on the suction cup is placed on the mask sheet placement position, and at the same time, the suction cup on the other side opens the air intake, and the air holes thereon blow air in the circumferential direction of the mask sheet in the bin, thereby adsorbing the mask sheet on the suction cup. After the negative pressure gauge gives a signal, the lifting cylinder goes down, the rotary motor rotates 180°, and the lifting cylinder lifts the mask piece in the silo upward, and the cycle continues.

[0019] Due to the application of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0020] The invention has a simple structure, low cost and convenient use. The invention has a reasonable design, the silo automatically rises and falls, the motor rotates to discharge the material, the structure is beautiful and the operation is practical; PIC is used for program control, the program control is stable and concise; the lifting cylinder is used to lift the pallet for loading, the transportation is stable, the speed is fast and the structure is simple. The suction cup is specially used for the adsorption of the mask sheet. The suction cup directly blows air to the mask sheet, forming multiple groups of air holes inside, and uses the principle that the air flow drives the surrounding air flow to form a negative pressure in the local space, so that the mask sheet is adsorbed on the suction cup.

[0021] The present invention adopts automatic control throughout the whole process, has a high degree of automation, reduces the labor intensity of workers, and improves production efficiency. The structure is compact and simple, saves manpower, reduces costs, and has higher efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2This is a schematic diagram of the structure of the material bin on the mask sheet of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the adsorption feeding mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the suction cup of the present invention;

[0026] Figure 5 is a schematic diagram of the bottom surface of the suction cup of the present invention;

[0027] Figure 6 It is a schematic diagram of the assembly structure of the present invention and the mask ear strap machine. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention by means of specific embodiments in combination with the accompanying drawings. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0029] Example:

[0030] like Figures 1 to 6 As shown, an automatic feeding device of an ear band machine, the ear band machine comprises a frame 6, a mask piece conveying device 20 arranged on the frame 6, an ear band storage device 21, a welding device 22 and a mask collecting device 23; the mask piece conveying device 20 comprises a continuously arranged mask piece placement position 201; the automatic feeding device comprises a mask piece feeding bin mechanism and an adsorption feeding mechanism arranged at the front end of the mask piece conveying device 20 of the ear band machine;

[0031] The mask piece feeding bin mechanism includes a bin 1 for accommodating mask pieces and a lifting cylinder 2; the bin 1 is mainly composed of two vertical plates 3 symmetrically arranged at a distance and a support plate 4 arranged between the two vertical plates 3; the action end of the lifting cylinder 2 acts on the support plate 4, and drives the support plate 4 to move up and down in the space of the bin 1 formed by the two vertical plates 3; it also includes a fixed plate 5, and the mask piece feeding bin mechanism is fixedly connected to the frame 6 of the ear band machine via the fixed plate 5; the fixed plates 5 are two, and the two fixed plates 5 are symmetrically arranged on both sides of the mask piece feeding bin mechanism, and are fixedly connected to the frame 6 of the mask ear band machine.

[0032] The adsorption feeding mechanism includes a support frame 7, a suction cup 8, a lifting cylinder 9 and a rotating motor 10 arranged on the ear strap machine frame 6; the support frame 7 is fixed on the frame 6 of the ear strap machine; the support frame 7 is fixed to the feeding front end of the ear strap machine frame 6 via a base fixing plate 15.

[0033] There are two suction cups 8, which are fixedly connected via a connecting plate 11. The suction cup 8 is a rectangular structure whose bottom surface matches the shape of the mask sheet. An inflation port 20 is provided on the top and side of the suction cup 8. The suction cup 8 is fixedly connected to the connecting plate 11 via an X-shaped connecting block 16. The inflation port 20 is connected to an air source.

[0034] Among the two suction cups 8, one suction cup 8 is located directly above the mask sheet placement position 12 at the front end of the frame 6, and the other suction cup 8 is located directly above the silo 1; a plurality of air holes 13 are provided on the bottom surface of the suction cup 8; the air holes 13 are long waist holes or arc holes symmetrically arranged on the bottom surface of the suction cup 8.

[0035] It also includes a motor fixing seat 14, the rotating motor 10 is fixed on the motor fixing seat 14, the action end of the rotating motor 10 acts on the connecting plate 11, and drives the connecting plate 11 to rotate 180 degrees, and drives the two suction cups 8 to be alternately located directly above the mask piece placement position 12 and directly above the silo 1; the lifting cylinder 9 is fixed on the support frame 7, and the action end of the lifting cylinder 9 acts on the motor fixing seat 14, and drives the motor fixing seat 14 to drive the connecting plate 11 to make up and down reciprocating motion, thereby driving the two suction cups 8 to make up and down reciprocating motion.

[0036] It also includes a lifting cylinder action plate 17; the action end of the lifting cylinder 9 acts on the lifting cylinder action plate 17, and the lifting cylinder action plate 17 is fixedly connected to the motor fixing seat 14 via four columns 18.

[0037] It also includes an optical fiber sensor 19 , which is fixed on the two vertical plates 3 of the silo 1 corresponding to the upper side of the silo 1 .

[0038] It also includes a PIC control system (not shown in the figure), and the lifting cylinder 2, the lifting cylinder 9 and the rotating motor 10 are all electrically connected to the PLC control system.

[0039] During operation, the mask sheet silo is in the initial position, and the mask sheet is placed in the silo until the silo is full; when the equipment start button is pressed, the lifting cylinder in the adsorption feeding mechanism descends, and the suction cup on the corresponding silo starts to work, and the air holes on the suction cup blow air to the circumference of the mask sheet in the silo, and the mask sheet is adsorbed on the suction cup by using the principle that the air flow drives the surrounding air flow to form a negative pressure in the local space; at this time, the lifting cylinder rises, and at the same time, the optical fiber sensor on the side of the silo senses and sends a signal, and the lifting cylinder acts to lift the support plate under the silo upward, so that the uppermost mask sheet in the silo is in place; at the same time, after the rotary motor rotates 180°, the lifting cylinder descends, and the suction cup that has just adsorbed the mask sheet is located on the mask sheet placement position, and the suction cup is cut off, and the mask sheet adsorbed on the suction cup is placed on the mask sheet placement position. At the same time, the suction cup on the other side opens the air intake, and the air holes on it blow air to the circumference of the mask sheet in the silo, thereby adsorbing the mask sheet on the suction cup. After the negative pressure gauge gives a signal, the lifting cylinder goes down, the rotary motor rotates 180°, and the lifting cylinder lifts the mask piece in the silo upward, and the cycle continues.

[0040] The invention has a simple structure, low cost and convenient use. The invention has a reasonable design, the silo automatically rises and falls, the motor rotates to discharge the material, the structure is beautiful and the operation is practical; PIC is used for program control, the program control is stable and concise; the lifting cylinder is used to lift the pallet for loading, the transportation is stable, the speed is fast and the structure is simple. The suction cup is specially used for the adsorption of the mask sheet. The suction cup directly blows air to the mask sheet, forming multiple groups of air holes inside, and uses the principle that the air flow drives the surrounding air flow to form a negative pressure in the local space, so that the mask sheet is adsorbed on the suction cup.

[0041] The present invention adopts automatic control throughout the whole process, has a high degree of automation, reduces the labor intensity of workers, and improves production efficiency. The structure is compact and simple, saves manpower, reduces costs, and has higher efficiency.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An automatic feeding device for an ear strap machine, the ear strap machine comprising a frame, a mask piece conveying device arranged on the frame, an ear strap storage device, a welding device and a mask collecting device; the mask piece conveying device comprises a continuously arranged mask piece placement position; characterized in that: The automatic feeding device includes a mask piece feeding bin mechanism and an adsorption feeding mechanism arranged at the front end of the mask piece conveying device of the ear band machine; The mask sheet feeding bin mechanism includes a bin for accommodating mask sheets and a lifting cylinder; the bin is mainly composed of two vertical plates symmetrically arranged at a distance and a support plate arranged between the two vertical plates; the action end of the lifting cylinder acts on the support plate and drives the support plate to move up and down in the bin space formed by the two vertical plates; it also includes a fixed plate, and the mask sheet feeding bin mechanism is fixedly connected to the frame of the ear band machine via the fixed plate; the fixed plates are two, and the two fixed plates are symmetrically arranged on both sides of the mask sheet feeding bin mechanism and fixedly connected to the frame of the ear band machine; The adsorption feeding mechanism includes a support frame, a suction cup, a lifting cylinder and a rotating motor arranged on the frame of the ear band machine; the support frame is fixed on the frame of the ear band machine; there are two suction cups, which are fixedly connected via a connecting plate, and one of the two suction cups is located directly above the mask piece placement position at the front end of the frame, and the other suction cup is located directly above the silo; a plurality of air holes are provided on the bottom surface of the suction cup; it also includes a motor fixing seat, the rotating motor is fixed on the motor fixing seat, the action end of the rotating motor acts on the connecting plate, and drives the connecting plate to rotate 180 degrees, and drives the two suction cups to be alternately located directly above the mask piece placement position and directly above the silo; the lifting cylinder is fixed on the support frame, and the support frame is fixed on the feeding front end of the ear band machine frame via a base fixing plate; and the action end of the lifting cylinder acts on the motor fixing seat, and drives the motor fixing seat to drive the connecting plate to reciprocate up and down, thereby driving the two suction cups to reciprocate up and down.

2. The automatic feeding device of the ear loop machine according to claim 1, characterized in that: The air holes are long waist holes symmetrically arranged on the bottom surface of the suction cup.

3. The automatic feeding device of the ear loop machine according to claim 1, characterized in that: It also includes a lifting cylinder action plate; the action end of the lifting cylinder acts on the lifting cylinder action plate, and the lifting cylinder action plate is fixedly connected to the motor fixing seat via four columns.

4. The automatic feeding device of the ear loop machine according to claim 1, characterized in that: It also includes an optical fiber sensor, which is fixed on two vertical plates of the silo corresponding to the top of the silo.

5. The automatic feeding device for the ear loop machine according to claim 1, characterized in that: It also includes a PLC control system, and the lifting cylinder, the lifting cylinder and the rotating motor are all electrically connected to the PLC control system.

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