CN113524693A

CN113524693A - Ultrasonic low-damage point-like automatic compound mechanism of protective mask

Info

Publication number: CN113524693A
Application number: CN202110807050.0A
Authority: CN
Inventors: 张志成; 张丽; 马晓飞
Original assignee: Jixiang Sanbao High Tech Textile Co Ltd
Current assignee: Jixiang Sanbao High Tech Textile Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-10-22
Anticipated expiration: 2041-07-16
Also published as: CN113524693B

Abstract

The invention relates to the technical field of mask compound mechanisms, in particular to an ultrasonic low-damage point-like automatic compound mechanism of a protective mask, which comprises a driven compound mechanism and a driven conveying mechanism, wherein mask coil stock is arranged between the driven compound mechanism and the driven conveying mechanism, the driven compound mechanism comprises a first conveying roller and a first rolling frame, the first conveying roller is rotatably arranged on the first rolling frame, the driven conveying mechanism comprises a second conveying roller and a second rolling frame, the second conveying roller is rotatably arranged on the second rolling frame, a compound tray is fixedly arranged on one side of the second conveying roller, an ultrasonic recombiner is fixedly arranged on one side of the first conveying roller close to the compound tray, and a fixed frame is arranged on the other side of the first conveying roller; compared with the prior art, the invention can avoid the damage to the mask material roll during compounding, reduce the damage rate, and simultaneously complete compounding during conveying, thereby greatly reducing the processing procedures and improving the production efficiency.

Description

Ultrasonic low-damage point-like automatic compound mechanism of protective mask

Technical Field

The invention relates to the technical field of mask compound mechanisms, in particular to an ultrasonic low-damage point-like automatic compound mechanism of a protective mask.

Background

The mask is an important means for isolating virus transmission, protecting susceptible people and realizing effective individual protection. At present, a nano mask is an efficient medical protective mask due to its efficient filtering performance, and is similar to a common medical mask, the nano antibacterial mask also comprises an outer layer, an intermediate layer, an inner layer, an ear hook, a nose clip and the like, and the nano mask is characterized in that the intermediate layer is made of a nano membrane with a smaller aperture, generally made of a PTFE material, and a PTFE fiber membrane prepared by a unidirectional or bidirectional stretching method has a spider-web-type microporous structure on the surface and has very complicated changes such as mesh communication, hole inlay sleeves, pore channel bending and the like on a three-dimensional structure, so that the nano mask has an excellent surface filtering function.

At present, in the production of a nano mask, a PTFE fiber film and a base material are required to be thermally compounded, and a high-temperature compounding and pressing mode is generally adopted, for example, Chinese patent with the publication number of CNA discloses a mask and a mask production process.

Disclosure of Invention

The invention aims to provide an ultrasonic low-damage point-like automatic compound mechanism of a protective mask, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an ultrasonic low-damage point-like automatic compound mechanism of a protective mask comprises a driven compound mechanism and a driven conveying mechanism, mask coil stock is arranged between the driven compound mechanism and the driven conveying mechanism, the driven compound mechanism comprises a first conveying roller and a first rolling frame, the first conveying roller is rotatably arranged on the first rolling frame, the driven conveying mechanism comprises a second conveying roller and a second rolling frame, the second conveying roller is rotatably arranged on the second rolling frame, a compound tray is fixedly arranged on one side of the second conveying roller, an ultrasonic recombiner is fixedly arranged on one side of the first conveying roller close to the compound tray, a fixed frame is arranged on the other side of the first conveying roller, the fixed frame is fixedly arranged on the first rolling frame, a timing opening and closing control switch is arranged on the fixed frame, a movable ejector rod is arranged on one side of the timing opening and closing control switch, one side of the first conveying roller close to the timing opening and closing control switch is fixedly provided with a fixed pressing sheet, and the bottom of the ultrasonic combiner is provided with a spot welding head.

As a preferred technical scheme of the invention, the timing on-off control switch comprises a switch box, a bimetallic strip is mounted on the top wall of the switch box, an electric heating wire is wound on the bimetallic strip, a conductive strip is arranged on the inner wall of one side of the switch box, a top frame is movably mounted on the other side wall of the switch box through a first spring, a push rod is arranged on the upper surface of the top frame and is arranged on one side of the bottom end of the bimetallic strip, an ultrasonic generator switch touch strip and a material roll motor switch touch strip are mounted on the inner wall of the bottom of the switch box, a movable switch touch strip is rotatably mounted on the lower surface of the conductive strip through a rotating pin, and the movable push rod is arranged above the material roll motor switch touch strip.

As a preferred technical scheme of the invention, one end of the conductive bar is provided with a third lead, the bottom of the material roll motor switch contact bar is provided with a second lead, and the movable switch contact bar, the conductive bar, the third lead, the second lead, the material roll motor switch contact bar and an external material roll motor for driving mask roll material form a series closed circuit.

As a preferable technical solution of the present invention, the bimetal includes a first metal plate close to the first spring and a second metal plate far from the first spring, and a thermal expansion coefficient of the first metal plate is larger than a thermal expansion coefficient of the second metal plate.

As a preferred technical solution of the present invention, one end of the heating wire is electrically connected to the ultrasonic generator switch contact strip through a first wire, the other end of the heating wire is electrically connected to the movable switch contact strip through a fourth wire, and the heating wire, the first wire, the fourth wire, the ultrasonic generator switch contact strip, the movable switch contact strip and the ultrasonic combiner form a closed circuit connected in series.

As a preferable technical scheme of the invention, the lower end of the top frame is provided with a slide bar, the lower end of the slide bar is slidably mounted on the overheat breaker, a second spring is mounted between the movable switch contact bar and the switch box, and when the second spring and the first spring are both in a non-compressed state, the contact between the material coil motor switch contact bar and the movable switch contact bar is in contact.

As a preferred technical scheme of the present invention, the ultrasonic combiner includes a composite box, an ultrasonic generator is disposed on an inner wall of one side of the composite box, a battery is disposed on an inner wall of the other side of the composite box, an energy converter is mounted at the bottom of the composite box, an amplitude transformer penetrating through the composite box is fixedly mounted at a lower end of the energy converter, a welding rod is fixedly mounted at a lower end of the amplitude transformer, the spot welding head is disposed at a bottom end of the welding rod, and the energy converter is electrically connected to the ultrasonic generator.

As a preferable technical scheme, the ultrasonic recombiner is square, and when the spot welding head is perpendicular to the mask coil, the fixed pressing sheet is in contact with the movable ejector rod.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the ultrasonic low-damage point-like automatic compounding mechanism of the protective mask, disclosed by the invention, ultrasonic point-like welding compounding treatment can be carried out on mask coil stock in conveying through the driven compounding mechanism, the driven conveying mechanism, the first conveying roller, the first rolling frame, the second conveying roller, the second rolling frame, the compounding tray and the ultrasonic recombiner, so that the damage to the mask coil stock in compounding is avoided, the damage rate is reduced, compounding can be completed in conveying, the processing procedures are greatly reduced, and the production efficiency is improved.

2. According to the ultrasonic low-damage point-like automatic compound mechanism of the protective mask, disclosed by the invention, the compound position can be positioned by arranging the fixed pressing sheet, the timing start-stop control switch, the movable ejector rod, the switch box, the heating wire, the conductive bar, the rotating pin, the ultrasonic generator switch contact strip, the top frame, the push rod, the first spring, the bimetallic strip, the sliding strip, the movable switch contact strip and the material coil motor switch contact strip, and the material coil conveying motor is matched with the point-like compound work, so that the start-stop of the conveying work and the automatic start-stop of the point-like compound work are automatically realized, and the mutual matching of the two is realized, the low-damage point-like automatic compound work is realized, and the labor cost is saved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an internal view of the timing on-off control switch when the ultrasonic recombiner of the present invention is opened;

FIG. 4 is an internal view of the timing on-off control switch when the ultrasonic recombiner of the present invention is closed;

FIG. 5 is a schematic structural view of an ultrasonic recombiner of the present invention;

FIG. 6 is a circuit schematic of the present invention;

in the figure: 1. a driven compound mechanism; 2. a driven conveying mechanism; 3. a first conveying roller; 4. a first rolling frame; 5. a second conveying roller; 6. a second rolling frame; 7. a composite tray; 8. an ultrasonic recombiner; 9. a fixing frame; 10. fixing the pressing sheet; 11. a spot welding head; 12. the control switch is opened and closed at fixed time; 13. a movable ejector rod; 14. a switch box; 15. an electric heating wire; 16. a conductive strip; 17. a rotation pin; 18. an ultrasonic generator switch touch strip; 19. a top frame; 20. a push rod; 21. a first spring; 22. a bimetal; 23. a slide bar; 24. a movable switch touch bar; 25. a material coil motor switch touch strip; 26. a first conductive line; 27. a second spring; 28. a second conductive line; 29. a third conductive line; 30. a fourth conductive line; 31. a composite box; 32. an ultrasonic generator; 33. a battery; 34. a transducer; 35. an amplitude transformer; 36. welding a rod; 37. and (5) rolling the mask.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-6, the present invention provides a technical solution: an ultrasonic low-damage point-like automatic compound mechanism of a protective mask comprises a driven compound mechanism 1 and a driven conveying mechanism 2, a mask coil stock 37 is arranged between the driven compound mechanism 1 and the driven conveying mechanism 2, the driven compound mechanism 1 comprises a first conveying roller 3 and a first rolling frame 4, the first conveying roller 3 is rotatably arranged on the first rolling frame 4, the driven conveying mechanism 2 comprises a second conveying roller 5 and a second rolling frame 6, the second conveying roller 5 is rotatably arranged on the second rolling frame 6, a compound tray 7 is fixedly arranged on one side of the second conveying roller 5, an ultrasonic compound device 8 is fixedly arranged on one side of the first conveying roller 3 close to the compound tray 7, a fixed frame 9 is arranged on the other side of the first conveying roller 3, the fixed frame 9 is fixedly arranged on the first rolling frame 4, a timing opening and closing control switch 12 is arranged on the fixed frame 9, a movable ejector rod 13 is arranged on one side of the timing opening and closing control switch 12, one side of the first conveying roller 3 close to the timing on-off control switch 12 is fixedly provided with a fixed pressing sheet 10, and the bottom of the ultrasonic recombiner 8 is provided with a spot welding head 11.

Further, the timing on-off control switch 12 includes switch box 14, top wall mounting of switch box 14 has bimetallic strip 22, the winding has heating wire 15 on bimetallic strip 22, one side inner wall of switch box 14 is equipped with busbar 16, another side wall of switch box 14 has roof-rack 19 through first spring 21 movable mounting, the upper surface of roof-rack 19 is equipped with push rod 20, bottom one side of bimetallic strip 22 is located to push rod 20, install supersonic generator switch contact strip 18 and material book motor switch contact strip 25 on the bottom inner wall of switch box 4, movable switch contact strip 24 is installed through the rotation pin 17 rotation to the lower surface of busbar 16, movable ejector rod 13 locates the top of material book motor switch contact strip 25.

Furthermore, one end of the conductive bar 16 is provided with a third wire 29, the bottom of the material roll motor switch contact bar 25 is provided with a second wire 28, and the movable switch contact bar 24, the conductive bar 16, the third wire 29, the second wire 28, the material roll motor switch contact bar 25 and an external material roll motor for driving the mask roll material 37 form a series closed circuit.

Further, bimetallic strip 22 is for being close to the first sheetmetal of first spring 21 and keeping away from the second sheetmetal of first spring 21, and the coefficient of thermal expansion of first sheetmetal is greater than the coefficient of thermal expansion of second sheetmetal, the continuous intensification of heating wire 15 can make two sheetmetals on bimetallic strip 22 be heated and expand, finally lead to bimetallic strip 22 to take place to buckle, can promote push rod 20 level, and then drive the horizontal synchronization movement of roof-rack 19, realize heating wire 15, the outage of ultrasonic wave recombiner 8.

Further, one end of the heating wire 15 is electrically connected to the ultrasonic generator switch contact strip 18 through a first conducting wire 26, the other end of the heating wire 15 is electrically connected to the movable switch contact strip 24 through a fourth conducting wire 30, and the heating wire 15, the first conducting wire 26, the fourth conducting wire 30, the ultrasonic generator switch contact strip 18, the movable switch contact strip 24 and the ultrasonic combiner 8 form a series-connected closed circuit.

Further, the lower end of the top frame 19 is provided with a sliding bar 23, the lower end of the sliding bar 23 is slidably mounted on the overheat breaker 4, a second spring 27 is mounted between the movable switch contact bar 24 and the switch box 14, and when the second spring 27 and the first spring 21 are both in a non-compression state, the contact point between the material coil motor switch contact bar 25 and the movable switch contact bar 24 at the moment is in contact.

Further, the ultrasonic combiner 8 comprises a composite box 31, an ultrasonic generator 32 is arranged on the inner wall of one side of the composite box 31, a battery 33 is arranged on the inner wall of the other side of the composite box 31, a transducer 34 is arranged at the bottom of the composite box 31, an amplitude transformer 35 penetrating through the composite box 31 is fixedly arranged at the lower end of the transducer 34, a welding rod 36 is fixedly arranged at the lower end of the amplitude transformer 35, a spot welding head 11 is arranged at the bottom end of the welding rod 36, the transducer 34 is electrically connected with the ultrasonic generator 32, the opened ultrasonic combiner 8 can realize the vibration of the transducer 34, the transducer 34 drives the amplitude transformer 35, the welding rod 36 and the spot welding head 11 to vibrate vertically at high frequency synchronously, the mask coil 37 below can be subjected to good spot welding treatment, mechanical energy is converted into heat energy to melt the composite layer of the mask coil 37, and the coil avoids the damage to the mask 37 during compounding, the damage rate is reduced, and compounding can be completed during conveying, so that the processing procedures are greatly reduced, and the production efficiency is improved.

Further, the ultrasonic recombiner 8 is square, and when the spot welding head 11 is perpendicular to the mask coil 37, the fixed pressing sheet 10 is in contact with the movable ejector rod 13.

The working principle is as follows:

when the ultrasonic composite welding device is used, when a material coil motor drives a mask coil 37 to move, a driven composite mechanism 1 and a driven conveying mechanism 2 which are positioned at two sides of the mask coil 37 synchronously rotate, when a fixed pressing sheet 10 on the driven composite mechanism 1 moves to a fixed frame 9 at a fixed position to open and close a control switch 12 at fixed time, the ultrasonic composite device 8 just drives a spot welding head 11 to move above the mask coil 37, the fixed pressing sheet 10 presses a movable ejector rod 13 into a switch box 14 to enable the movable ejector rod 13 to horizontally move, so that a material coil motor switch contact strip 25 which is originally in a contact power-on state is separated from a movable switch contact strip 24, the power-off of the material coil motor is realized, the mask coil 37, the driven composite mechanism 1 and the driven conveying mechanism 2 can be synchronously stopped, and when the movable switch contact strip 24 moves and is in contact with an ultrasonic generator switch contact strip 18, the ultrasonic composite device 8 can be opened, the opened ultrasonic recombiner 8 can realize the vibration of the energy converter 34, and the energy converter 34 drives the amplitude transformer 35, the welding rod 36 and the point welding head 11 to vibrate vertically in a high-frequency synchronous manner, the mask coil 37 below can be subjected to good spot welding treatment, mechanical energy is converted into heat energy to melt the composite layer of the mask coil 37, the damage to the mask coil 37 during compounding is avoided, the damage rate is reduced, the compounding can be completed during conveying, the processing procedures are greatly reduced, the production efficiency is improved, the heating wire 15 can also be heated by electrifying the ultrasonic recombiner 8 at the moment, the two metal sheets on the bimetallic sheet 22 can be heated and expanded by continuous heating of the heating wire 15, the bimetallic sheet 22 is finally bent, the push rod 20 can be horizontally pushed, and then the top frame 19 is driven to move horizontally and synchronously, the heating wire 15 and the power-off of the ultrasonic recombiner 8 are realized, make 11 stop work of spot welding head, accomplished activity switch touch strip 24 and material and rolled up the contact of material motor switch touch strip 25 for material is rolled up the work of circular telegram once more of material motor, drives gauze mask coil stock 37 and continues to move, so can let carry coil stock motor cooperation punctiform combined work, and automatic the opening of realizing carrying work stops and stops with the automation of punctiform combined work, and the two mutually supports, has realized the automatic combined work of low damage punctiform, practices thrift the cost of labor.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask is characterized by comprising a driven compound mechanism (1) and a driven conveying mechanism (2), mask coil materials (37) are arranged between the driven compound mechanism (1) and the driven conveying mechanism (2), the driven compound mechanism (1) comprises a first conveying roller (3) and a first rolling frame (4), the first conveying roller (3) is rotatably installed on the first rolling frame (4), the driven conveying mechanism (2) comprises a second conveying roller (5) and a second rolling frame (6), the second conveying roller (5) is rotatably installed on the second rolling frame (6), a compound tray (7) is fixedly installed on one side of the second conveying roller (5), and an ultrasonic combiner (8) is fixedly installed on one side, close to the compound tray (7), of the first conveying roller (3), the opposite side of first transport roller (3) is equipped with fixed frame (9), fixed frame (9) fixed mounting is on first roll frame (4), be equipped with on fixed frame (9) timing on-off control switch ware (12), one side of timing on-off control switch ware (12) is equipped with movable ejector pin (13), one side fixed mounting that first transport roller (3) are close to timing on-off control switch ware (12) has fixed preforming (10), the bottom of ultrasonic wave recombiner (8) is equipped with spot welding head (11).

2. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 1, wherein the timing on-off control switch (12) comprises a switch box (14), a bimetallic strip (22) is installed on the top wall of the switch box (14), an electric heating wire (15) is wound on the bimetallic strip (22), a conductive strip (16) is arranged on the inner wall of one side of the switch box (14), a top frame (19) is movably installed on the other side wall of the switch box (14) through a first spring (21), a push rod (20) is arranged on the upper surface of the top frame (19), the push rod (20) is arranged on one side of the bottom end of the bimetallic strip (22), an ultrasonic generator switch contact strip (18) and a material coil motor switch contact strip (25) are installed on the inner wall of the bottom of the switch box (4), a movable switch contact strip (24) is rotatably installed on the lower surface of the conductive strip (16) through a rotating pin (17), the movable ejector rod (13) is arranged above the material coil motor switch contact strip (25).

3. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 2, characterized in that one end of the conductive bar (16) is provided with a third wire (29), the bottom of the coil motor switch contact bar (25) is provided with a second wire (28), and the movable switch contact bar (24), the conductive bar (16), the third wire (29), the second wire (28), the coil motor switch contact bar (25) and an external coil motor for driving the mask coil (37) form a series closed circuit.

4. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 2, wherein the bimetallic strip (22) is a first metal strip close to the first spring (21) and a second metal strip far away from the first spring (21), and the thermal expansion coefficient of the first metal strip is larger than that of the second metal strip.

5. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 2, wherein one end of the electric heating wire (15) is electrically connected with the ultrasonic generator switch contact strip (18) through a first wire (26), the other end of the electric heating wire (15) is electrically connected with the movable switch contact strip (24) through a fourth wire (30), and the electric heating wire (15), the first wire (26), the fourth wire (30), the ultrasonic generator switch contact strip (18), the movable switch contact strip (24) and the ultrasonic combiner (8) form a closed circuit connected in series.

6. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 5, characterized in that the lower end of the top frame (19) is provided with a slide bar (23), the lower end of the slide bar (23) is slidably mounted on the overheat breaker (4), a second spring (27) is mounted between the movable switch contact bar (24) and the switch box (14), and when the second spring (27) and the first spring (21) are both in a non-compressed state, the contact between the material roll motor switch contact bar (25) and the movable switch contact bar (24) at the moment is contacted.

7. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 1, wherein the ultrasonic compound device (8) comprises a compound box (31), an ultrasonic generator (32) is arranged on an inner wall of one side of the compound box (31), a battery (33) is arranged on an inner wall of the other side of the compound box (31), a transducer (34) is installed at the bottom of the compound box (31), an amplitude transformer (35) penetrating through the compound box (31) is fixedly installed at the lower end of the transducer (34), a welding rod (36) is fixedly installed at the lower end of the amplitude transformer (35), the spot welding head (11) is arranged at the bottom end of the welding rod (36), and the transducer (34) is electrically connected with the ultrasonic generator (32).

8. The ultrasonic low-damage point-like automatic compound mechanism of the protective mask according to claim 1, characterized in that the ultrasonic recombiner (8) is square in shape, and the fixed pressing sheet (10) is in contact with the movable ejector rod (13) when the spot welding head (11) is perpendicular to the mask coil (37).