Protective mask quality detection machine

Abstract

The invention relates to the technical field of mask detection, in particular to a protective mask quality detector which comprises a dust generator and a power assembly mounted on the dust generator. A detection opening is formed in the dust generator; a mounting plate is further included; the power assembly is connected with a mounting plate; a circular pipe is fixedly connected to the mounting plate; conical barrels are fixedly connected to the lower ends of the circular pipes; the inner front wall and the inner rear wall of the conical barrel are each provided with an air suction groove. According to the protective mask quality detection machine obtained through the design, the mask is limited on the bearing plate through the two air suction grooves of the conical barrel, the multi-layer folded mask is unfolded through the protruding part of the expansion block, then the filtering efficiency of the mask is tested, in this way, spot check is conducted on the mask on a production line regularly, and the detection efficiency is improved. And the data of the product can be tested in time, so that the time consumption is low, the detection efficiency is high, the production line can be adjusted in time, the number of unqualified products is reduced, and the waste of resources is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mask detection, in particular to a protective mask quality detection machine. BACKGROUND

[0002] A mask is a widely used health and epidemic prevention product in medical, industrial and daily life, usually worn on the mouth and nose, used to filter the air entering the respiratory tract, effectively blocking harmful substances in the external environment, such as droplets, dust, viruses, bacteria, harmful gases and odors, etc., thereby reducing the risk of respiratory tract infection and occupational exposure. The traditional mask is made of gauze, non-woven fabric, melt-blown fabric and other materials, and realizes physical blocking and electrostatic adsorption double filtering mechanism through multi-layer structure.

[0003] Since the mask after production is a rectangular planar structure, and the middle part of the mask is in a multi-layer folded state, in the prior art, the operator needs to manually fully unfold and tighten the mask, and then fix it on the instrument for detection of filtering efficiency, which takes a long time and has low detection efficiency, and the production line cannot be adjusted in time, resulting in a large amount of unqualified products produced continuously, causing waste of resources. SUMMARY

[0004] In order to overcome the shortcomings that the mask after production is a rectangular planar structure, and the middle part of the mask is in a multi-layer folded state, and manual detection of filtering efficiency is required, which takes a long time and has low detection efficiency, and the production line cannot be adjusted in time, the present application provides a protective mask quality detection machine.

[0005] Technical scheme: A protective mask quality detection machine, comprising a dust generating machine and a power assembly installed on the dust generating machine; a detection port is arranged on the dust generating machine; further comprising a mounting plate; the mounting plate is connected to the power assembly; a circular pipe is fixedly connected to the mounting plate; a conical cylinder is fixedly connected to the lower end of the circular pipe; an air suction groove is formed in the inner front wall and the inner rear wall of the conical cylinder; an electric push rod one is fixedly connected to the left and right parts of the conical cylinder; the extension parts of the two electric push rods one are jointly fixedly connected to a circular ring located outside the circular pipe; a slide rod penetrating through the conical cylinder is fixedly connected to the front and rear parts of the circular ring; the lower ends of the two slide rods are jointly fixedly connected to an expansion block abutting the inner wall of the conical cylinder; a protruding part is arranged on the expansion block; a bracket in contact with the expansion block is fixedly connected to the inner side of the conical cylinder; a dust detector is arranged on the bracket; a receiving assembly for receiving the mask is connected to the middle part of the dust generating machine; the power assembly is used to drive the circular pipe, the conical cylinder and the expansion block to move.

[0006] Further, a sponge strip is arranged on the lower left and right parts of the conical cylinder.

[0007] To further explain, the power assembly includes a support platform; two support platforms are fixedly attached to the upper surface of the dust generator, located on both sides of the detection port; a motion platform is installed on each support platform; a motion part is slidably connected to each motion platform; a cross plate is fixedly attached to both motion parts; two electric push rods are fixedly attached to the cross plate; the telescopic parts of the two electric push rods are fixedly attached to the mounting plate.

[0008] To further explain, the receiving component includes spring telescopic columns; several spring telescopic columns located outside the detection port are slidably connected to the middle of the dust generator; the several spring telescopic columns are distributed in a rectangular shape; a receiving plate is fixedly connected to all the spring telescopic columns; and a round hole is opened on the receiving plate.

[0009] To further clarify, a sealing ring is provided on the expansion block.

[0010] The above settings achieve a complete seal between the mask and the expansion block.

[0011] To further explain the function of pulling the ear loops of the mask, an electric slide rail is also included; two electric slide rails located within the support platform are fixedly connected to the left and right sides of the upper surface of the dust generator; an electric slider is slidably connected to each electric slide rail; a connecting plate is fixedly connected to each of the two electric sliders on the left and the two electric sliders on the right; a tension sensor is installed on the opposing sides of each of the two connecting plates; a pull hook symmetrically distributed on the left and right sides of each of the two tension sensors is installed; and a display panel is installed on each connecting plate.

[0012] To further explain, the protrusions of the extension block are made of rubber.

[0013] The above settings achieve the protective effect of the mask.

[0014] To further explain, rubber blocks are provided on the lower surface of the bracket.

[0015] The above settings achieve a complete seal when the expansion block and the bracket come into contact.

[0016] To further explain the function of adjusting the ear loops of the mask, the device also includes three electric push rods; one electric push rod is fixedly connected to the front and rear of the lower surface of the mounting plate, and the electric push rods are configured as bidirectional push rods; a connecting rod is fixedly connected to the telescopic part on the same side of each of the two electric push rods; a vertical block is fixedly connected to each connecting rod; a limiting rod is fixedly connected to the front and rear of the conical cylinder; an arc-shaped plate fixed to the vertical block is slidably connected to the left and right of each of the two limiting rods; two vertical strips are fixedly connected to the lower side of each arc-shaped plate; an arc-shaped piece is fixedly connected between the two vertical strips of each arc-shaped plate.

[0017] To further clarify, the curved piece is made of rubber.

[0018] The above settings achieve a deformable shape while providing protection for the mask.

[0019] The beneficial effects of this invention are as follows: The protective mask quality inspection machine obtained by the present invention, through the above-described design, restricts the mask to the receiving plate through the two air inlets of the conical cylinder, unfolds the multi-layered folded mask using the protrusion of the extension block, and then tests the filtration efficiency of the mask. In this way, masks on the production line are sampled regularly, and the data of the product is tested in a timely manner. It takes less time, has high testing efficiency, and allows for timely adjustments to the production line, reducing the number of unqualified products and thus reducing the waste of resources.

[0020] The protective mask quality testing machine obtained by the present invention, when the conical cylinder restricts the mask, the ear loops on the mask will also fall on the corresponding hooks. During the filtration quality test of the mask, the two hooks are simultaneously controlled to move the mask ear loops to opposite sides to conduct the tensile strength test of the mask ear loops. Compared with the common practice of transferring the mask to different instruments for quality testing, this not only improves the testing efficiency of the mask, but also improves the practicality of the device.

[0021] The protective mask quality testing machine of the present invention uses two arc-shaped plates that move along the upper surface of the mask to opposite sides to sort out the irregular ear loops on both sides of the mask and move the two ear loops into the two hooks. This ensures that the ear loops of the mask can be tested for tensile strength normally, thus avoiding the situation where the ear loops are not in the hooks and affect the normal tensile strength test of the mask ear loops. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the protective mask quality testing machine of the present invention; Figure 2 This is a three-dimensional structural diagram of the round tube, conical cylinder, expansion block, bracket, and receiving component of the protective mask quality testing machine of the present invention; Figure 3 This is a three-dimensional structural diagram of the expansion block of the protective mask quality testing machine of the present invention; Figure 4 This is a three-dimensional structural diagram of the electric slide rail, electric slider, tension sensor, and pull hook of the protective mask quality testing machine of the present invention; Figure 5 This is a three-dimensional structural diagram of the mounting plate, round tube, conical cylinder, arc plate, vertical strip, and arc plate of the protective mask quality testing machine of the present invention.

[0023] In the attached diagrams: 1-Dust generator, 2-Mounting plate, 3-Round tube, 4-Conical cylinder, 5-Electric push rod one, 6-Ring, 7-Slide rod, 8-Extension block, 9-Bracket, 101-Support platform, 102-Motion platform, 103-Motion part, 104-Horizontal plate, 105-Electric push rod two, 201-Spring telescopic column, 202-Support plate, 301-Electric slide rail, 302-Electric slider, 303-Connecting plate. 304-Tension sensor, 305-Hook, 306-Display panel, 401-Electric push rod three, 402-Connecting rod, 403-Vertical block, 404-Limiting rod, 405-Arc plate, 406-Vertical strip, 407-Arc piece, 1001-Detection port, 4001-Suction groove, 4002-Sponge strip, 8001-Protrusion, 8002-Sealing ring, 9001-Dust detector, 20201-Round hole. Detailed Implementation

[0024] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0025] Example 1: A quality testing machine for protective masks, such as Figures 1-4 As shown, it includes a dust generator 1 and a power assembly; the power assembly is connected to the upper surface of the dust generator 1; a detection port 1001 is provided on the dust generator 1; It also includes a mounting plate 2, a circular tube 3, a conical cylinder 4, an electric push rod 5, a ring 6, a sliding rod 7, an extension block 8, a bracket 9, and a receiving assembly; the mounting plate 2 is connected to the power assembly; the circular tube 3 is fixedly connected to the mounting plate 2; the conical cylinder 4 is fixedly connected to the lower end of the circular tube 3; an air intake groove 4001 is opened on the inner front wall and inner rear wall of the conical cylinder 4; an electric push rod 5 is fixedly connected to the left and right parts of the conical cylinder 4; the telescopic parts of the two electric push rods 5 are jointly fixedly connected to the ring 6, and the ring 6 is located on the outside of the circular tube 3. A sliding rod 7 is fixedly connected to the front and rear of the ring 6, and the sliding rod 7 passes through the conical cylinder 4; the lower ends of the two sliding rods 7 are fixedly connected to an extension block 8, and the extension block 8 is in contact with the inner wall of the conical cylinder 4; a protrusion 8001 is provided on the extension block 8; a bracket 9 is fixedly connected to the inner side of the conical cylinder 4, and the bracket 9 is in contact with the extension block 8; a dust detector 9001 is provided on the bracket 9; a receiving component is connected to the middle of the dust generator 1; the power component is used to drive the circular tube 3, the conical cylinder 4 and the extension block 8 to move.

[0026] A sponge strip 4002 is provided on the lower left and lower right parts of the conical cylinder 4.

[0027] The power assembly includes a support platform 101, a motion platform 102, a motion part 103, a horizontal plate 104, and an electric push rod 105. Two support platforms 101 are fixedly connected to the upper surface of the dust generator 1, and the two support platforms 101 are located on both sides of the detection port 1001. Each support platform 101 is equipped with a motion platform 102. A motion part 103 is slidably connected to each motion platform 102. A horizontal plate 104 is fixedly connected to both motion parts 103. Two electric push rods 105 are bolted to the horizontal plate 104. The telescopic parts of the two electric push rods 105 are fixedly connected to the mounting plate 2.

[0028] The receiving assembly includes spring telescopic columns 201 and receiving plate 202; four spring telescopic columns 201 are slidably connected to the middle of the dust generator 1, and all spring telescopic columns 201 are located outside the detection port 1001; the spring telescopic columns 201 are arranged in a rectangular shape; the receiving plate 202 is fixedly connected to all the spring telescopic columns 201; the receiving plate 202 has a circular hole 20201.

[0029] Furthermore, a sealing ring 8002 is provided on the extension block 8.

[0030] The further advantage of adopting the above method is that it prevents gaps between the mask and the receiving plate 202 from affecting the filtration efficiency test results of the mask.

[0031] It also includes an electric slide rail 301, an electric slider 302, a connecting plate 303, a tension sensor 304, a hook 305, and a display panel 306; two electric slide rails 301 are bolted to the left and right sides of the upper surface of the dust generator 1, and all electric slide rails 301 are located within the support platform 101; an electric slider 302 is slidably connected to each electric slide rail 301; a connecting plate 303 is fixedly connected to each of the two electric sliders 302 on the left and the two electric sliders 302 on the right; a tension sensor 304 is installed on the opposite side of each of the two connecting plates 303; a hook 305 is installed on the opposite side of each of the two tension sensors 304, and the two hooks 305 are symmetrically distributed from left to right; a display panel 306 is installed on each connecting plate 303.

[0032] Furthermore, the protrusion 8001 of the extension block 8 is made of rubber.

[0033] Furthermore, a rubber block is provided on the lower surface of the bracket 9.

[0034] The further advantages of adopting the above are: when the mask is stretched by the rubber protrusion 8001, it prevents the mask from being squeezed and damaged by the protrusion 8001, and when the expansion block 8 and the support 9 are fitted together by the rubber block on the lower surface of the support 9, there will be no gap.

[0035] The working steps of this embodiment are as follows: The following directions are Figure 1 Using the perspective reference, the direction where the dust generator 1 is located is to the left, and the directions of the rotation perspective are all from front to back, from top to bottom, and from right to left; When using it, the operator first places this protective mask quality testing machine on the side of the mask production line, connects an external power supply to all parts that require electric drive, and connects an external vacuum pump to the round tube 3; During the continuous operation of the mask production line, the control unit 103 moves on the motion platform 102. The two control units 103 drive the horizontal plate 104, the electric push rod 2 105, the mounting plate 2, the round tube 3, the conical cylinder 4, the electric push rod 5, the ring 6, the slide rod 7, the extension block 8, and the bracket 9 to move forward together, moving the conical cylinder 4 above the masks produced on the production line. Then, the extension parts of the two electric push rods 105 are controlled to extend, driving the mounting plate 2, the round tube 3, and the conical cylinder 4 to move downward together, allowing the conical cylinder 4 to contact the masks below. At the same time, the external vacuum pump is controlled to turn on, causing the two suction slots 4001 of the conical cylinder 4 to generate suction. The mask is attracted to the conical cylinder 4, and then the telescopic parts of the two electric push rods 105 are retracted, taking the conical cylinder 4 and the mask off the production line. The two moving parts 103 are controlled to move the connected parts and the mask backward, moving the mask above the receiving plate 202. Then the telescopic parts of the two electric push rods 105 are pushed out, moving the connected parts and the mask downward together. During the downward movement of the conical cylinder 4 and the mask, the mask is pressed onto the receiving plate 202 by the conical cylinder 4, pushing the receiving plate 202 to contact the upper surface of the detection port 1001, forcing the four spring telescopic columns 201 to compress, and the receiving plate 202 becomes flush with the two hooks 305.

[0036] When the mask is pressed onto the receiving plate 202, the telescopic parts of the two electric push rods 5 are contracted, causing the ring 6, slide rod 7, and extension block 8 to move downwards together. At this time, because the middle part of the mask is multi-folded, the front and back parts of the mask are fixed by the suction force generated by the two suction grooves 4001 of the conical cylinder 4, and the left and right parts of the mask are in contact with the two sponge strips 4002 of the conical cylinder 4. Therefore, as the protrusion 8001 of the extension block 8 moves downwards, it will come into contact with the multi-folded parts of the middle part of the mask, forcing the multi-folded parts of the middle part of the mask to gradually unfold within the detection port 1001, allowing the left and right parts of the mask to move towards the middle, until the sealing ring 8002 of the extension block 8, along with the mask, presses against the receiving plate 202, completely sealing the gap between the mask and the receiving plate 202, and the middle part of the mask changes from a multi-folded shape to a downward-concave unfolded shape, which is the usage state of the mask. This ensures the accuracy of the mask detection data.

[0037] Meanwhile, because the vacuum pump is continuously working and the expansion block 8 is far away from the bracket 9, the circular tube 3 will be connected to the expansion block 8. Therefore, the lower port of the expansion block 8 is also in a negative pressure state, simulating the use of the mask. Then, the dust generator 1 is turned on, and the dust gas generated by the dust generator 1 will enter the detection port 1001. The mask filters the dusty air, and the dust detector 9001 detects the filtered gas to test the filtration efficiency of the mask. After the dust generator 1 has been working for a period of time, the dust generator 1 is turned off. In this way, the mask is restricted to the receiving plate 202 by the conical cylinder 4, and the multi-layered folded mask is unfolded by the protrusion 8001 of the expansion block 8. The filtration efficiency of the mask is then tested. In this way, the masks on the production line are sampled regularly, and the data of the product is tested in a timely manner. It takes less time, has high testing efficiency, and allows for timely adjustments to the production line, reducing the number of unqualified products and thus reducing the waste of resources.

[0038] When the conical cylinder 4 confines the mask to the receiving plate 202, the two ear loops on the mask also fall onto their corresponding hooks 305. During the subsequent filtration test, the electric sliders 302 move along the electric slide rail 301. All the electric sliders 302 move the corresponding connecting plate 303, tension sensor 304, hooks 305, display plate 306, and ear loops together, pulling the two ear loops of the mask towards opposite sides. The tensile strength of the ear loops is tested by the tension sensor 304 until the ear loops break. The tensile strength of the ear loops is displayed on the display plate 306 and recorded in the data controller. Thus, the tensile strength of the mask ear loops is tested simultaneously during the filtration quality test. Compared to the common practice of transferring masks to different instruments for quality inspection, this not only improves the testing efficiency of the mask but also enhances the practicality of the device.

[0039] Example 2: Based on Example 1, such as Figure 5 As shown, it also includes an electric push rod 401, a connecting rod 402, a vertical block 403, a limiting rod 404, an arc plate 405, vertical strips 406, and an arc piece 407; an electric push rod 401 is bolted to the front and rear of the lower surface of the mounting plate 2, and the electric push rod 401 is configured as a bidirectional push rod; a connecting rod 402 is fixedly connected to the telescopic part on the same side of the two electric push rods 401; a vertical block 403 is fixedly connected to each connecting rod 402; a limiting rod 404 is fixedly connected to the front and rear of the conical cylinder 4; an arc plate 405 is slidably connected to the left and right of the two limiting rods 404, and each of the two arc plates 405 is fixedly connected to a vertical block 403; two vertical strips 406 are fixedly connected to the lower side of each arc plate 405; an arc piece 407 is fixedly connected between the two vertical strips 406 of each arc plate 405.

[0040] Furthermore, the curved piece 407 is made of rubber.

[0041] The further advantage of using the above method is that the rubber arc-shaped piece 407 moves along the mask, preventing the mask from being torn.

[0042] The working principle of this embodiment is as follows: Because the ear loops of the mask are made of flexible material, their shape becomes irregular during movement. Simultaneously, as the expansion block 8 stretches the mask, it forces the sides of the mask to move towards the center, moving the ear loops along with it. This prevents the ear loops from falling directly into the hook 305, thus affecting the tensile strength test of the mask. Therefore, after the mask is stretched, the two arc-shaped pieces 407 are located on the upper surface of the mask, controlling the extension and retraction of all parts of the two electric push rods 401. This causes the corresponding connecting rod 402, vertical block 403, arc-shaped plate 405, vertical strip 406, and arc-shaped piece 407 to move towards opposite sides, causing the arc-shaped plate 405 to be in a limited position. Sliding rod 404 allows two curved pieces 407 to move against the upper surface of the mask towards opposite sides, combing the irregular ear loops on both sides of the mask and pulling the two ear loops towards the hooks 305 on both sides. When the two curved pieces 407 push the ear loops into contact with the hooks 305, they will force the rubber curved pieces 407 to deform until the two ear loops of the mask are moved into the two hooks 305, ensuring that the ear loops of the mask can be tested for tensile strength normally. Controlling all the telescopic parts of the two electric push rods 401 to retract and drive the connected parts to reset, this can prevent the ear loops of the mask from not being in the hooks 305, which would affect the normal tensile strength test of the ear loops of the mask.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective mask quality testing machine, comprising a dust generator (1) and a power assembly mounted on the dust generator (1); the dust generator (1) is provided with a testing port (1001); characterized in that, It also includes a mounting plate (2); the mounting plate (2) is connected to the power assembly; a round tube (3) is fixed to the mounting plate (2); a conical cylinder (4) is fixed to the lower end of the round tube (3); an air intake groove (4001) is opened on the inner front wall and the inner rear wall of the conical cylinder (4); an electric push rod (5) is fixed to the left and right parts of the conical cylinder (4); the telescopic parts of the two electric push rods (5) are jointly fixed to a ring (6) located outside the round tube (3); a through cone is fixed to the front and rear parts of the ring (6). The sliding rod (7) of the cylinder (4); the lower ends of the two sliding rods (7) are fixedly connected to an extension block (8) that fits against the inner wall of the conical cylinder (4); a protrusion (8001) is provided on the extension block (8); a bracket (9) that contacts the extension block (8) is fixedly connected to the inner side of the conical cylinder (4); a dust detector (9001) is provided on the bracket (9); a receiving component for receiving the interface cover is connected to the middle of the dust generator (1); the power component is used to drive the round tube (3), the conical cylinder (4) and the extension block (8) to move.

2. A protective mask quality testing machine according to claim 1, characterized in that, A sponge strip (4002) is provided on the lower left and lower right parts of the conical cylinder (4).

3. A protective mask quality testing machine according to claim 1, characterized in that, The power assembly includes a support platform (101); two support platforms (101) located on both sides of the detection port (1001) are fixed to the upper surface of the dust generator (1); each support platform (101) is equipped with a motion platform (102); each motion platform (102) is slidably connected with a motion part (103); a cross plate (104) is fixed to both motion parts (103); two electric push rods (105) are fixed to the cross plate (104); the telescopic parts of the two electric push rods (105) are fixed to the mounting plate (2).

4. A protective mask quality testing machine according to claim 3, characterized in that, The receiving component includes a spring telescopic column (201); a number of spring telescopic columns (201) located outside the detection port (1001) are slidably connected to the middle of the dust generator (1); the number of spring telescopic columns (201) are arranged in a rectangular shape; a receiving plate (202) is fixedly connected to all the spring telescopic columns (201); a round hole (20201) is opened on the receiving plate (202).

5. A protective mask quality testing machine according to claim 4, characterized in that, A sealing ring (8002) is provided on the extension block (8).

6. A protective mask quality testing machine according to claim 5, characterized in that, It also includes electric slide rails (301); two electric slide rails (301) located in the support platform (101) are fixedly connected to the left and right sides of the upper surface of the dust generator (1); an electric slider (302) is slidably connected to each electric slide rail (301); a connecting plate (303) is fixedly connected to each of the two electric sliders (302) on the left and the two electric sliders (302) on the right; a tension sensor (304) is installed on each of the two connecting plates (303) facing each other; a pull hook (305) is installed on each of the two tension sensors (304) facing each other; and a display plate (306) is installed on each connecting plate (303).

7. A protective mask quality testing machine according to claim 1, characterized in that, The protrusion (8001) of the extension block (8) is made of rubber.

8. A protective mask quality testing machine according to claim 1, characterized in that, A rubber block is provided on the lower surface of the bracket (9).

9. A protective mask quality testing machine according to claim 6, characterized in that, It also includes an electric push rod three (401); an electric push rod three (401) is fixedly connected to the front part and the rear part of the lower surface of the mounting plate (2), and the electric push rod three (401) is set as a bidirectional push rod; a connecting rod (402) is fixedly connected to the telescopic part on the same side of the two electric push rod three (401); a vertical block (403) is fixedly connected to each connecting rod (402); a limiting rod (404) is fixedly connected to the front part and the rear part of the conical cylinder (4); an arc plate (405) fixedly connected to the left and right parts of the two limiting rods (404) is slidably connected to the left and right parts of the arc plate (405); two vertical strips (406) are fixedly connected to the lower side of each arc plate (405); an arc piece (407) is fixedly connected between the two vertical strips (406) of each arc plate (405).

10. A protective mask quality testing machine according to claim 9, characterized in that, The curved piece (407) is made of rubber.

Images