Mask assembly production line and mask assembly method

Abstract

The invention discloses a mask assembly production line and a mask assembly method. A folding mechanism, an indentation mechanism and a protective film structure cooperate with each other to improve the folding quality. The masks are assembled and produced through a circular knife die fixture, a roller structure, ultrasonic welding and a hot pressing die. The existing die-cutting equipment can be converted into a mask assembly production line without the need for special automated mask equipment, thereby reducing the R&D and manufacturing costs of the production line.

Description

Technical Field

[0001] The present invention relates to the technical field of mask production equipment, and in particular to a mask assembly production line and a mask assembly method. Background Art

[0002] Most of the existing mask production equipment is specific automated production equipment, which is difficult to be used in combination with the die-cutting industry. In addition, the existing mask folding structure is plate-type, the folding effect is poor, and the folding structure of the mask is easy to rebound. Summary of the invention

[0003] The purpose of the present invention is to provide a mask assembly production line and a mask assembly method, wherein a folding mechanism, an indentation mechanism and a protective film structure cooperate to improve the folding quality; and the masks are assembled and produced through a circular knife die fixture, a roller structure, ultrasonic welding and a hot pressing mold, and can be assembled into a mask assembly production line on existing die-cutting equipment, without the need for special mask equipment, thereby reducing the R&D and manufacturing costs of the production line.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The mask assembly production line includes a fabric compound section, a folding section, a Y-axis welding section, a nose bridge assembly section and a cutting section connected in sequence;

[0006] The folding section includes a circular knife type folding mechanism and a creasing mechanism;

[0007] The Y-direction welding section includes a protective film conveying roller and an ultrasonic welding mechanism.

[0008] Therefore, the fabric compound section is used to laminate multiple layers of fabric, the folding section folds the middle part of the fabric through the folding mechanism and the creasing mechanism, the Y-direction welding section welds the Y-direction edge of the mask, wherein the protective film conveying roller is used to convey the protective film, the protective film is attached to the outer fabric of the mask, and can shape the folding area of ​​the mask to prevent the folding area from bursting, the nose bridge assembly section is used to assemble the nose bridge, and the cutting section slices and separates the mask, the folding mechanism, the creasing mechanism and the protective film structure cooperate to improve the folding quality, and the assembly production line assembles and produces the mask through the circular knife type die fixture and the roller structure, and can be assembled into a mask assembly production line on the existing die-cutting equipment, without the need to set up special mask equipment, thereby reducing the R&D and manufacturing costs of the production line.

[0009] In some embodiments, the assembly line further includes an ear rope welding section, and the ear rope welding section includes an ultrasonic spot welder.

[0010] Thus, the ear ropes are connected to the main body of the mask through an ultrasonic spot welding machine.

[0011] In some embodiments, the folding mechanism includes a folding upper mold and a folding lower mold;

[0012] The folding upper mold is provided with an upper tooth body, which is extended in an inclined manner and gradually shrinks in a direction away from the folding upper mold;

[0013] The folding lower mold is provided with a lower tooth body, the lower tooth body is extended in an inclined manner, and the lower tooth body gradually shrinks in a direction away from the folding lower mold;

[0014] The upper tooth body matches with the lower tooth body.

[0015] Thus, the upper teeth of the folding upper mold cooperate with the lower teeth of the folding lower mold, so that the middle fabric of the mask forms a folded structure. Both the upper teeth and the lower teeth are inclined and gradually contracted structures, which facilitates the folding of the fabric.

[0016] In some embodiments, the inclination angle α of the upper teeth is between 50°C and 60°C.

[0017] Therefore, the inclination angle α is the angle between the side of the upper tooth body and the horizontal direction.

[0018] In some embodiments, the indentation mechanism includes a first indentation plate set and a second indentation plate set;

[0019] The first indentation plate set includes a first transverse plate and a first connecting seat, and the first transverse plate is connected to the first connecting seat;

[0020] The second indentation plate set includes a second transverse plate and a second connecting seat, and the second transverse plate is connected to the second connecting seat;

[0021] The first transverse plate matches with the second transverse plate.

[0022] Therefore, the first creasing plate group and the second creasing plate group are respectively provided with a first transverse plate and a second transverse plate, and the first transverse plate and the second transverse plate cooperate with each other to form a clamping structure, so as to creasing and shaping the fabric in the folding area.

[0023] In some embodiments, the first transverse plate is provided in plurality and is detachably connected to the first connecting seat, and the lengths of the plurality of first transverse plates are gradually increased;

[0024] The second transverse plates are arranged in plurality and are detachably connected to the second connecting seat, and the lengths of the plurality of second transverse plates matched with the plurality of first transverse plates are gradually shortened.

[0025] Therefore, both the first transverse plate and the second transverse plate are detachable structures, the multiple first transverse plates gradually become longer, and the multiple second transverse plates gradually become shorter, forming multiple clamping structures, which can press multiple folding marks.

[0026] In some embodiments, the edges of the free ends of the first horizontal plate and the second horizontal plate are both arranged in arc shape;

[0027] The first connecting seat and the second connecting seat are both provided with slots and screw holes, and the first transverse plate and the second transverse plate are both provided with mounting holes corresponding to the screw holes.

[0028] Therefore, the free ends of the first horizontal plate and the second horizontal plate are the ends away from the corresponding connecting seats, and the edge portions are arc-shaped to smoothly guide the first horizontal plate and the second horizontal plate into the folding area; the first horizontal plate and the second horizontal plate are connected in the slots through screw holes, mounting holes and corresponding fastener structures, and the fasteners are screws or bolts.

[0029] In some embodiments, the cloth composite section includes a first conveying roller, a second conveying roller, a third conveying roller, and a composite roller group;

[0030] The nose bridge strip assembly section includes a first bottom material conveying roller, a nose bridge strip conveying roller, an asynchronous cutting roller, a fourth conveying roller and a roller-type hot pressing mold;

[0031] The asynchronous cutting roller is provided with asynchronous cutting pieces.

[0032] Thus, the first conveyor roller conveys the white inner layer non-woven fabric, the second conveyor roller conveys the white middle layer meltblown fabric, and the third conveyor roller conveys the blue outer layer non-woven fabric, and the three layers of fabric are compounded by the corresponding compound roller groups respectively; the first base material conveyor roller conveys the first base material belt, the nose bridge strip conveyor roller conveys the nose bridge strip, the asynchronous cutting roller is provided with a cutting piece to cut the nose bridge strip, and the fourth conveyor roller conveys a narrow strip of white inner layer non-woven fabric. The nose bridge strip and the narrow strip of white inner layer non-woven fabric are assembled on the inner layer fabric of the mask through a roller-type hot pressing mold. At the same time, the roller-type hot pressing mold welds the mask in the X direction.

[0033] In some embodiments, the cutting section includes a second bottom material conveying roller, a cutting roller and a waste material recovery roller, and the cutting roller is provided with a cutting sheet.

[0034] Thus, the second bottom material conveying roller conveys the second bottom material strip, the cutting roller slices the mask, and the waste material recovery roller can recover the waste material strip.

[0035] A mask assembly method, the method comprising the following steps:

[0036] Compounding the multiple layers of fabric of the mask;

[0037] The middle fabric of the mask is folded and crimped by a circular knife-type folding mechanism and a creasing mechanism;

[0038] Apply a protective film to the outer fabric of the mask;

[0039] Perform ultrasonic welding on the Y-axis edge of the mask;

[0040] The nose bridge strip of the mask is cut asynchronously, and the nose bridge strip and the narrow white inner non-woven fabric are assembled by a roller-type hot pressing mold. At the same time, the roller-type hot pressing mold performs hot pressing welding on the X-direction edge of the mask;

[0041] Slice the mask;

[0042] Assemble the ear straps of the mask by ultrasonic spot welding.

[0043] Beneficial effects of the present invention: the production line assembles and produces masks through the circular knife structure and roller structure of the die-cutting industry in conjunction with the hot pressing mold and ultrasonic welding mechanism;

[0044] The folding section folds the mask fabric through a toothed folding die, and indents and shapes it through an indentation plate group. The folding quality is good, and a protective film is attached to the mask after folding to prevent it from bursting.

[0045] The ultrasonic welding mechanism and the hot pressing mold weld the mask in the Y direction and X direction respectively;

[0046] The nose bridge is cut by asynchronous cutting rollers and the ear ropes are welded by ultrasonic spot welding machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a structural diagram of the mask assembly production line of the present invention;

[0048] Figure 2 It is a structural diagram of the folding upper mold of the mask assembly production line of the present invention;

[0049] Figure 3 It is a structural diagram of the folding lower mold of the mask assembly production line of the present invention;

[0050] Figure 4 It is a structural diagram of the indentation mechanism of the mask assembly production line of the present invention;

[0051] Figure 5 It is a front view of the indentation mechanism of the mask assembly production line of the present invention;

[0052] Figure 6 It is a structural diagram of the first horizontal plate of the mask assembly production line of the present invention;

[0053] Figure 7 This is a structural diagram of the first connecting seat of the mask assembly production line of the present invention;

[0054] Figure 8 It is a structural diagram of the hot pressing mold of the mask assembly production line of the present invention;

[0055] Among them: 1-fabric composite section; 11-first conveying roller; 12-second conveying roller; 13-third conveying roller; 14-composite roller group; 2-folding section; 21-folding mechanism; 211-folding upper mold; 211a-upper tooth body; 212-folding lower mold; 212a-lower tooth body; 22-indentation mechanism; 221-first indentation plate group; 2211-first horizontal plate; 2211a-mounting hole; 2212-first connecting seat; 2212a-slot; 2212b-screw hole; 22 2-the second indentation plate group; 2221-the second horizontal plate; 2222-the second connecting seat; 3Y-welding section; 31-protective film conveying roller; 32-ultrasonic welding mechanism; 4-nose bridge strip assembly section; 41-the first base material conveying roller; 42-nose bridge strip conveying roller; 43-asynchronous cutting roller; 44-the fourth conveying roller; 45-hot pressing mold; 5-cutting section; 51-the second base material conveying roller; 52-cutting roller; 53-waste recovery roller; 6-ear rope welding section; 61-ultrasonic spot welding machine. DETAILED DESCRIPTION

[0056] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0057] refer to Figures 1 to 8 , a mask assembly production line, comprising a fabric composite section 1, a folding section 2, a Y-direction welding section 3Y, a nose bridge strip assembly section 4 and a cutting section 5 connected in sequence;

[0058] The folding section 2 includes a circular knife type folding mechanism 21 and a creasing mechanism 22;

[0059] The Y-direction welding section 3Y includes a protective film conveying roller 31 and an ultrasonic welding mechanism 32 .

[0060] To further explain, the assembly production line also includes an ear rope welding section 6 , and the ear rope welding section 6 includes an ultrasonic spot welder 61 .

[0061] To further illustrate, the folding mechanism 21 includes an upper folding mold 211 and a lower folding mold 212;

[0062] The upper folding mold 211 is provided with an upper tooth body 211a, the upper tooth body 211a is extended in an inclined manner, and the upper tooth body 211a gradually shrinks in a direction away from the upper folding mold 211;

[0063] The folding lower mold 212 is provided with a lower tooth body 212a, the lower tooth body 212a is extended in an inclined manner, and the lower tooth body 212a gradually shrinks in a direction away from the folding lower mold 212;

[0064] The upper tooth body 211 a matches with the lower tooth body 212 a .

[0065] To further illustrate, the inclination angle α of the upper tooth body 211 a is between 50° and 60°.

[0066] Further, the indentation mechanism 22 includes a first indentation plate group 221 and a second indentation plate group 222;

[0067] The first indentation plate set 221 includes a first transverse plate 2211 and a first connecting seat 2212 , and the first transverse plate 2211 is connected to the first connecting seat 2212 ;

[0068] The second indentation plate set 222 includes a second transverse plate 2221 and a second connecting seat 2222 , and the second transverse plate 2221 is connected to the second connecting seat 2222 ;

[0069] The first transverse plate 2211 matches with the second transverse plate 2221 .

[0070] Further, the first transverse plates 2211 are provided in plurality and are detachably connected to the first connecting seat 2212, and the lengths of the plurality of first transverse plates 2211 are gradually increased;

[0071] The second transverse plates 2221 are provided in plurality and are detachably connected to the second connecting seat 2222 . The lengths of the second transverse plates 2221 matched with the first transverse plates 2211 gradually become shorter.

[0072] Further explanation, the edges of the free ends of the first horizontal plate 2211 and the second horizontal plate 2221 are both arc-shaped;

[0073] The first connecting seat 2212 and the second connecting seat 2222 are both provided with a slot 2212a and a screw hole 2212b, and the first transverse plate 2211 and the second transverse plate 2221 are both provided with a mounting hole 2211a corresponding to the screw hole 2212b.

[0074] To further illustrate, the cloth composite section 1 includes a first conveying roller 11, a second conveying roller 12, a third conveying roller 13 and a composite roller group 14;

[0075] The nose bridge strip assembly section 4 includes a first base material conveying roller 41, a nose bridge strip conveying roller 42, an asynchronous cutting roller 43, a fourth conveying roller 44 and a roller-type hot pressing mold 45;

[0076] The asynchronous cutting roller 43 is provided with asynchronous cutting pieces.

[0077] To further explain, the cutting section 5 includes a second bottom material conveying roller 51, a cutting roller 52 and a waste material recovery roller 53, and the cutting roller 52 is provided with a cutting sheet.

[0078] A mask assembly method, the method comprising the following steps:

[0079] Compounding the multiple layers of fabric of the mask;

[0080] The middle fabric of the mask is folded and indented by a circular knife-type folding mechanism 21 and an indentation mechanism 22;

[0081] Apply a protective film to the outer fabric of the mask;

[0082] Perform ultrasonic welding on the Y-axis edge of the mask;

[0083] The nose bridge strip of the mask is cut asynchronously, and the nose bridge strip and the narrow white inner non-woven fabric are assembled by a roller-type hot pressing mold 45. At the same time, the roller-type hot pressing mold 45 performs hot pressing welding on the X-direction edge of the mask;

[0084] Slice the mask;

[0085] Assemble the ear straps of the mask by ultrasonic spot welding.

[0086] Working principle:

[0087] The mask assembly production line is assembled by die-cutting equipment, and includes a fabric composite section 1, a folding section 2, a Y-direction welding section 3Y, a nose bridge assembly section 4 and a cutting section 5 which are connected in sequence. After the mask is sliced ​​in the cutting section 5, it is transferred to the ear rope welding section 6 for ear rope welding.

[0088] The fabric compounding section 1 is provided with a first conveying roller 11 , a second conveying roller 12 and a third conveying roller 13 , which are respectively used to convey a white inner layer non-woven fabric, a white middle layer meltblown fabric and a blue outer layer non-woven fabric, and the three layers of fabric are compounded in a compounding roller group 14 .

[0089] The folding section 2 is provided with a folding mechanism 21 and a creasing mechanism 22. The two tooth-shaped teeth of the folding mechanism 21 fold the middle part of the mask fabric, and after folding, the creasing plate group of the creasing mechanism 22 is creasing to shape it.

[0090] After the mask is folded, a layer of protective film is attached to further consolidate the folded shape of the mask to prevent the folded shape from bursting. Then, the mask is welded in the Y direction through the ultrasonic welding mechanism 32, wherein the Y direction is perpendicular to the material feeding direction of the mask.

[0091] The nose bridge strip is cut in the asynchronous cutting roller 43 and then conveyed to the roller-type hot pressing mold 45. The nose bridge strip and the narrow strip of white inner non-woven fabric are assembled on the inner fabric of the mask through the hot pressing mold 45. At the same time, the hot pressing mold 45 welds the mask in the X direction, where the X direction is parallel to the material feeding direction of the mask.

[0092] The asynchronous cutting roller 43 is provided with a detachable cutting piece.

[0093] The mask is cut and separated at the cutting section 5, and the cutting roller 52 is provided with a detachable cutting piece.

[0094] After the mask is sliced, it is transferred to the ear rope welding section 6, and the ear rope is welded using an ultrasonic spot welder 61.

[0095] The above completes the assembly of the mask. The mask production line realizes the assembly of the mask through the circular knife and roller structure, which can save certain R&D and manufacturing costs.

[0096] The above disclosure is only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the invention.

Claims

1. Mask assembly production line, characterized in that: It comprises a fabric composite section (1), a folding section (2), a Y-direction welding section (3), a nose bridge assembly section (4), a cutting section (5) and an ear rope welding section (6) which are connected in sequence, and can be assembled into a mask assembly production line on a die-cutting device; The folding section (2) comprises a circular knife type folding mechanism (21) and a creasing mechanism (22); The Y-direction welding section (3) comprises a protective film conveying roller (31) and an ultrasonic welding mechanism (32); The folding mechanism (21) comprises an upper folding mold (211) and a lower folding mold (212); The folding upper mold (211) is provided with an upper tooth body (211a), the upper tooth body (211a) is arranged to extend in an inclined manner, and the upper tooth body (211a) gradually shrinks in a direction away from the folding upper mold (211); The lower folding mold (212) is provided with a lower tooth body (212a), the lower tooth body (212a) is extended in an inclined manner, and the lower tooth body (212a) gradually shrinks in a direction away from the lower folding mold (212); The upper tooth body (211a) matches with the lower tooth body (212a); A mask assembly method based on a mask assembly production line, the method comprising the following steps: Compounding the multiple layers of fabric of the mask; The middle fabric of the mask is folded and indented by means of a circular knife-type folding mechanism (21) and an indentation mechanism (22); Apply a protective film to the outer fabric of the mask; Perform ultrasonic welding on the Y-axis edge of the mask; The nose bridge strip of the mask is cut asynchronously, and the nose bridge strip and the narrow white inner non-woven fabric are assembled by a roller-type hot pressing mold (45). At the same time, the roller-type hot pressing mold (45) performs hot pressing welding on the X-direction edge of the mask; Slice the mask; Assemble the ear straps of the mask by ultrasonic spot welding.

2. The mask assembly production line according to claim 1, characterized in that: The ear rope welding section (6) comprises an ultrasonic spot welder (61).

3. The mask assembly production line according to claim 1, characterized in that: The inclination angle (α) of the upper tooth body (211a) is between 50°C and 60°C.

4. The mask assembly production line according to claim 1, characterized in that: The indentation mechanism (22) comprises a first indentation plate group (221) and a second indentation plate group (222); The first indentation plate set (221) comprises a first transverse plate (2211) and a first connecting seat (2212), and the first transverse plate (2211) is connected to the first connecting seat (2212); The second indentation plate set (222) comprises a second transverse plate (2221) and a second connecting seat (2222), and the second transverse plate (2221) is connected to the second connecting seat (2222); The first transverse plate (2211) matches with the second transverse plate (2221).

5. The mask assembly production line according to claim 4, characterized in that: The first transverse plates (2211) are multiple and detachably connected to the first connecting seat (2212), and the lengths of the multiple first transverse plates (2211) gradually increase; The second transverse plates (2221) are multiple and detachably connected to the second connecting seat (2222), and the lengths of the multiple second transverse plates (2221) matched with the multiple first transverse plates (2211) gradually become shorter.

6. The mask assembly production line according to claim 5, characterized in that: The edges of the free ends of the first transverse plate (2211) and the second transverse plate (2221) are both arranged in arc shape; The first connecting seat (2212) and the second connecting seat (2222) are both provided with a slot (2212a) and a screw hole (2212b), and the first transverse plate (2211) and the second transverse plate (2221) are both provided with a mounting hole (2211a) corresponding to the screw hole (2212b).

7. The mask assembly production line according to claim 1, characterized in that: The cloth composite section (1) comprises a first conveying roller (11), a second conveying roller (12), a third conveying roller (13) and a composite roller group (14); The nose bridge strip assembly section (4) comprises a first base material conveying roller (41), a nose bridge strip conveying roller (42), an asynchronous cutting roller (43), a fourth conveying roller (44) and a roller-type hot pressing mold (45); The asynchronous cutting roller (43) is provided with an asynchronous cutting piece.

8. The mask assembly production line according to claim 1, characterized in that: The cutting section (5) comprises a second bottom material conveying roller (51), a cutting roller (52) and a waste material recovery roller (53), and the cutting roller (52) is provided with a cutting sheet.

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