TWI746341B - Shaping and welding device for ear rope of face mask - Google Patents

Abstract

A shaping and welding device for ear rope of face mask includes a conveying mechanism, a cam mechanism, a cutting mechanism, a plurality of folding mechanisms, and a welding mechanism. A face mask body and ear ropes are disposed on the conveying mechanism and transported forward. The cam mechanism uses a linear cam to push a clipping member for clipping the ear ropes, so that the ear ropes can be conveyed to the cutting mechanism and cut in a predetermined length. Then, the linear cam pushes folding members of the folding mechanisms, and the folding members bend the ear ropes. And next, the ear ropes are conveyed to the welding mechanism for being fixed to the face mask body. Therefore, the ear ropes can be quickly shaped on the face mask to improve the producing rate and yield rate.

Description

Forming welding device for ear band of mask

The invention relates to an earband forming and welding device for a mask, in particular to an earband forming and welding device capable of forming the earband on the mask.

Masks are used to protect the human respiratory system from pollution sources in the environment such as exhaust gas, dust, and germs. Most of the existing masks are manufactured with automated machinery and equipment. The mask roughly includes the mask body and two ear straps. The two ear straps must be connected to the two sides of the mask body. However, the existing earband molding and connection methods mostly use cylinders or motors to reciprocate, which are very complicated, generate noise and shorten the life of the mechanism, waste a lot of power and air pressure, making it difficult to improve the production speed and yield of masks.

The technical problem to be solved by the present invention is to provide an earband forming and welding device for masks in view of the deficiencies of the prior art, which can quickly form the earbands on the mask and improve the production speed and yield of the mask.

In order to solve the above technical problems, the present invention provides a mask ear strap forming and welding device, including: a conveying mechanism, the conveying mechanism is provided with a plurality of bearing seats, the bearing seats can respectively place a mask body, and the bearing seats The mask bodies can be driven to advance along a conveying direction, the two ear straps can be placed on the bearing seats, the two ear straps are continuous, and each bearing seat has two fixing parts and two clamping parts , The two clamping pieces are movably arranged between the two fixing pieces, and the two clamping pieces can move toward or in the opposite direction of the two fixing pieces; a cam mechanism, the cam mechanism having a linear cam, the linear cam It has a first cam portion and a second cam portion, the first cam portion and the second cam portion extend along the conveying direction, and the first cam portion can drive the clamping members toward or reverse to the two fixed The direction of the piece is moved to clamp or release the two ear belts; a cutting mechanism, the cutting mechanism is close to the conveying mechanism, the cutting mechanism includes two cutting units, the two cutting units are respectively connected to the two ear belts Correspondingly, it can be used to cut the two long continuous ear straps into a predetermined length; a plurality of belt folding mechanisms, the belt folding mechanisms are respectively arranged on the bearing seats, and each of the belt folding mechanisms includes Two first belt-folding parts and two second belt-folding parts, the two first belt-folding parts and the two second belt-folding parts are movably arranged on the bearing seat, and the second cam portion can drive the first The band-folding member and the second band-folding members move toward the ear bands and push both ends of the ear bands to bend; and a welding mechanism, the welding mechanism being close to the conveying mechanism, the welding mechanism including two welding units The two welding units respectively correspond to the ear straps, and the two welding units can weld the two ends of the ear straps to the mask body.

The beneficial effect of the present invention is that the earband forming and welding device for mask provided by the present invention includes a conveying mechanism, a cam mechanism, a cutting mechanism, a plurality of belt folding mechanisms, and a welding mechanism. The mask body and ear straps can be placed on the bearing seat of the conveying mechanism and transported forward. The cam mechanism uses a linear cam to push the clamping pieces to clamp the ear straps to clamp the ear straps and transfer the ear straps to the cutting mechanism for cutting. Then, the belt folding member of the belt folding mechanism is pushed by the linear cam to make the belt folding member bend the ear belt, and then the belt is conveyed to the welding mechanism to weld and fix the ear belt to the mask body. Therefore, the present invention can quickly form the earband on the mask, and improve the production speed and yield of the mask.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings about the present invention. However, the provided drawings are only for reference and description, and are not used to limit the present invention.

The following are specific specific examples to illustrate related implementations disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual dimensions, and are stated in advance. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used in this document may include any one or a combination of more of the associated listed items depending on the actual situation.

[Example]

Please refer to FIG. 1, the present invention provides an ear strap forming and welding device for masks. A front section machine 100 can be installed upstream of the ear strap forming and welding device. The front section machine 100 has a first roller set 101 and a second roller set. 102 and a third roller set 103. The first roller set 101, the second roller set 102, and the third roller set 103 are respectively equipped with mask materials that can be used as the skin-friendly layer, the middle layer and the waterproof layer. The masks The material passes through an umbrella-shaped wheel 104 and a folding plate 105 in sequence. The umbrella-shaped wheel 104 can roll multiple creases on the mask materials, and then pass through the folding plate 105 to shape the mask materials. There can be multiple creases on the molding. Then the nose bridge bead is transported to one side of the mask materials through a bead roller set 106, and then the mask materials are joined by an ultrasonic joining unit 107, and then cut by a cutter wheel set 108 to form the mask body. In order to continue to transport the mask bodies to the back-end machine 200 for ear band forming, welding and edging operations.

Please refer to Figures 1 to 7, the earband forming and welding device is one of the equipment of the back-end machine 200. The earband forming and welding device includes a conveying mechanism (first conveying mechanism) 1, a cam mechanism 2, a cutting mechanism 3, Multiple folding mechanisms 4 and a welding mechanism 5.

The conveying mechanism 1 can be a conveying belt mechanism. The conveying mechanism 1 is provided with a plurality of bearing seats (first bearing seats) 11, the bearing seats 11 are arranged at intervals, and the bearing seats 11 can respectively place a mask body A , Used to drive the mask bodies A to advance along a conveying direction D. Each bearing seat 11 has two fixing members 12 and two clamping members 13. The two fixing members 12 are close to the two sides of the bearing seat 11, and each fixing member 12 has a first side 121 and two second sides 122. One side 121 extends along the conveying direction D, two second sides 122 are respectively connected to the two ends of the first side 121, and the two second sides 122 can be perpendicular to the first side 121, and the two ear straps B (long continuous shape) They are respectively placed on the supporting seats 11 and reliably placed on the first sides 121 of the fixing members 12. The two clamping members 13 are movably arranged between the two fixing members 12. The two clamping members 13 can be driven by the cam mechanism 2 to move toward (outward) or in the opposite direction (inward) of the two fixing members 12 for clamping Tighten or release the two ear straps B. When the two clamping members 13 move in the direction of the two fixing members 12, the two ear bands B can be clamped between the two clamping members 13 and the first sides 121 of the two fixing members 12. The mask body A and the two ear straps B can be driven forward by the conveying mechanism 1 so as to be conveyed to the work stations such as the cutting mechanism 3 and the welding mechanism 5 in sequence.

The cam mechanism 2 uses a linear cam to push the clamping member 13 to clamp and release, and can be used to clamp the ear strap B so that the ear strap B is transported to the cutting mechanism 3 and cut into a predetermined length. The cam mechanism 2 has a linear cam 21, the linear cam 21 is fixedly arranged on the conveying mechanism 1, the linear cam 21 has a first cam portion 211 and a second cam portion 212 (as shown in FIG. 9), the first The cam portion 211 and the second cam portion 212 can be respectively formed on the upper half and the lower half of the linear cam 21. The first cam portion 211 and the second cam portion 212 extend along the conveying direction D and form symmetrical shapes on both sides. Cam surfaces 213 and 214. The first cam portion 211 can be used to drive the clamping members 13 to clamp or release the ear straps B, and the second cam portion 212 can be used to drive the belt folding mechanism 4 to perform belt folding.

Specifically, the two clamping members 13 of each carrier 11 are each connected to a first roller 131 (as shown in FIGS. 3 and 4), and the first rollers 131 connected to the two clamping members 13 respectively contact the first cam The two sides (cam surfaces) of the portion 211, therefore, the first cam portion 211 can be used to push the two first rollers 131 to move inward and outward, so that the two first rollers 131 can link the two clamping members 13 toward (outward) ) Or move in the opposite direction (inward) of the two fixing parts 12 to clamp or release the two ear straps B so that the two ear straps B can be clamped on the first side of the two clamping parts 13 and the two fixing parts 12 Between 121, the two ear straps B can be driven forward by the conveying mechanism 1.

The cutting mechanism 3 is close to the conveying mechanism 1 and can be used to cut the long continuous ear band B into a predetermined length. The cutting mechanism 3 includes two cutting units 31, the two cutting units 31 are arranged at intervals, and the two cutting units 31 correspond to the two ear bands B respectively. Each cutting unit 31 may include a cutter wheel 311 and a chopping board wheel 312. The cutter wheel 311 and the chopping board wheel 312 are arranged opposite to each other. The cutter wheel 311 has a plurality of cutters 313. The cutting board wheel 312 has a plurality of protrusions 314, which are arranged on the outer edge of the cutting board wheel 312 at intervals, and can be driven by a power source such as a motor (not shown) to rotate the knife wheel 311 and the cutting board wheel 312. Furthermore, the two ear straps B located between the cutter wheel 311 and the cutting board wheel 312 are cut into a predetermined length, and then the ear straps B are transported to the belt folding mechanism 4. The cutter 313 of the cutter wheel 311 can contact the protruding body 314 of the cutting board wheel 312, so that the cutter 313 can cut the ear band B smoothly.

The belt folding mechanisms 4 are respectively arranged on the bearing seats 11, and each belt folding mechanism 4 includes two first belt folding members 41 and two second belt folding members 42, two first belt folding members 41 and two second belt folding members. The belt-folding member 42 is movably disposed on the supporting base 11, and the second cam portion 212 can drive the first belt-folding members 41 and the second belt-folding members 42 to move, so that the first belt-folding member 41 and the second belt-folding member 41 can be moved. The two-fold belt piece 42 can move perpendicular to the conveying direction D, so that the first belt-folding piece 41 and the second belt-folding piece 42 can move toward the ear belts B, and push both ends of the ear belts B to bend, so that The earband B cut to a predetermined length can be bent into a U shape. In this embodiment, each of the supporting seats 11 is provided with a plurality of sliding grooves 14, the extending direction of the sliding grooves 14 is perpendicular to the conveying direction D, the first folding parts 41 and the second folding belts The pieces 42 are respectively slidably fitted to the sliding grooves 14, and the sliding grooves 14 can be used to guide the first belt-folding pieces 41 and the second belt-folding pieces 42 to move smoothly.

The first belt folding pieces 41 and the second belt folding pieces 42 are each connected to a second roller 44 (as shown in FIG. 4) through a connecting rod group 43, and the second rollers 44 respectively contact the second cam portions The two sides (cam surfaces) of 212, therefore, the second cam portion 212 can be used to push the second rollers 44 to move inwardly and outwardly, so that the second rollers 44 can be linked by the connecting rod groups 43 respectively. The first belt-folding pieces 41 and the second belt-folding pieces 42 move toward (outwardly) or in the opposite direction (inwardly) of the two fixing members 12 to perform the bending action of the ear strap B, that is, The two first folds 41 can be used to push one end of the earband B to bend, and then the two second folds 42 are used to push the other end of the earband B to bend, so that the earband B can be bent into a U shape, and The two ends of the ear band B can be placed against the two second sides 122 of the fixing member 12 respectively.

The welding mechanism 5 is close to the conveying mechanism 1 and can be used to weld and fix the earband B that has been cut to a predetermined length and bends to the mask body A. The welding mechanism 5 includes two welding units 51 arranged at intervals, and the two welding units 51 correspond to the two ear bands B respectively. Each welding unit 51 may include a welding device (ultrasonic welding machine) 511 and a welding wheel (first welding wheel) 512. The welding wheel 512 has a plurality of mesh protrusions 513 spaced apart from each other. The setting and protruding from the outer edge of the welding wheel 512, the welding wheel 512 can be driven to rotate by a power source such as a motor (not shown), and the two ends of the ear band B located between the welding device 511 and the welding wheel 512 are welded and fixed in sequence On the mask body A, that is, the two ends of the two ear straps B can be respectively contacted with the two welding devices 511 by the two mesh protrusions 513 of the two welding wheels 512, so as to be fixed on both sides of the mask body A by welding. After the two ear straps B are welded and fixed to the mask body A, the cam mechanism 2 can push the clamping member 13 to release the ear straps B.

In addition, please refer to Figure 1, Figure 2 and Figure 8, the downstream position of the ear strap forming and welding device can be further provided with a mask hemming device, the mask hemming device includes a conveying mechanism (second conveying mechanism) 6, A guide plate 7, a plurality of rotating wheels 8 and a welding mechanism 9.

The conveying mechanism 6 can be a conveying belt mechanism. The conveying mechanism 6 is also provided with a plurality of bearing seats (second bearing seats) 61. The bearing seats 61 are arranged at intervals, and the bearing seats 61 can be used to separately place the The mask body A with the ear strap B is connected, so that the mask body A with the ear strap B can be transported forward.

The rotating wheels 8 can be driven to rotate by an appropriate power source. The rotating wheels 8 are arranged at least above the guide plate 7, and the rotating wheels 8 and the guide plate 7 are arranged at an upstream position of the conveying mechanism 6 to guide The plate 7 can guide the mask body A connected to the ear strap B, and cooperate with the rotating wheels 8 to drive the mask body A connected to the ear strap B to the conveying mechanism 6, so that the mask body A connected to the ear strap B They fall on the bearing seats 61 in sequence.

The mask bodies A connected to the ear straps B are respectively placed on the bearing seats 61, and the two edging materials C (long continuous strips) wound on the two edging belt reels 10 can be used with other The conveying mechanism is conveyed to the periphery of both sides of the mask body A, and the edging material C is also wrapped around the joint between the ear strap B and the mask body A, and the edging material C can be conveyed forward along with the mask body A.

The welding mechanism 9 is close to the conveying mechanism 6 and can weld and fix the edging material C on both sides of the mask body A. The welding mechanism 9 includes two welding units 91. The two welding units 91 are arranged at intervals. The two welding units 91 respectively correspond to the two encapsulating materials C. Each welding unit 91 may include a welding device (ultrasonic welding machine) 911. And a welding wheel (second welding wheel) 912. The outer edge of the welding wheel 912 has a meshed wheel surface 913, and the outer edge of the welding wheel 912 has at least a cutting edge 914. The welding wheel 912 can be a motor (not shown) The edging material C located between the welding device 911 and the welding wheel 912 is welded and fixed to the mask body A by waiting for the power source to drive the rotation, and the edging material C can be cut by the cutting knife 914, so that the two edging materials C can be fixed to the mask body A. It covers the outer periphery of both sides of the mask body A, and the edging material C is also fixedly covered at the joint between the ear strap B and the mask body A, thereby manufacturing a mask with edging.

[Beneficial effects of the embodiment]

The beneficial effect of the present invention is that the earband forming and welding device for mask provided by the present invention includes a conveying mechanism, a cam mechanism, a cutting mechanism, a plurality of belt folding mechanisms, and a welding mechanism. The mask body and ear straps can be placed on the bearing seat of the conveying mechanism and transported forward. The cam mechanism uses a linear cam to push the clamping pieces to clamp the ear straps to clamp the ear straps and transfer the ear straps to the cutting mechanism for cutting. Then, the belt folding member of the belt folding mechanism is pushed by the linear cam to make the belt folding member bend the ear belt, and then the belt is conveyed to the welding mechanism to weld and fix the ear belt to the mask body. Therefore, the present invention can quickly form the earband on the mask, and improve the production speed and yield of the mask.

The content disclosed above is only the preferred and feasible embodiments of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the description and schematic content of the present invention are included in the application of the present invention. Within the scope of the patent.

1: Conveying mechanism 11: Bearing seat 12: Fixed parts 121: first side 122: second side 13: Clamping parts 131: The first roller 14: Chute 2: Cam mechanism 21: Linear cam 211: The first cam 212: The second cam 213: Cam Face 214: Cam Face 3: Cut off mechanism 31: Cut off unit 311: Knife Wheel 312: Cutting Board Wheel 313: Tool 314: protruding body 4: Folding mechanism 41: The first fold 42: The second fold belt 43: connecting rod group 44: second roller 5: Welding mechanism 51: Welding unit 511: Welding device 512: Welding wheel 513: Mesh Convex 6: Conveying mechanism 61: Carrier 7: Guide board 8: Turn the wheel 9: Welding mechanism 91: Welding unit 911: Welding device 912: Welding Wheel 913: Mesh wheel surface 914: cutting edge 10: Hemming belt reel A: Mask body B: Earband C: Hemming material D: Conveying direction 100: Front section machine 101: The first roller set 102: The second roller set 103: The third roller set 104: Umbrella wheel 105 folding board 106: Bead roller set 107: Ultrasonic joint unit 108: Knife Wheel Set 200: Rear section machine

Fig. 1 is a perspective view of the ear strap forming and welding device, the edging device and the front-end machine of the mask of the present invention.

Fig. 2 is a perspective view of the ear strap forming welding device and the edging device of the mask of the present invention.

Figure 3 is a perspective view (1) of the cam mechanism of the present invention.

Figure 4 is a perspective view (2) of the cam mechanism of the present invention.

Fig. 5 is a perspective view of the cutting mechanism of the present invention.

Figure 6 is a perspective view of the belt folding mechanism of the present invention.

Fig. 7 is a perspective view of the welding mechanism of the present invention.

Fig. 8 is a perspective view of the welding mechanism of the present invention.

Figure 9 is a perspective view of the linear cam of the present invention.

1: Conveying mechanism

11: Bearing seat

3: Cut off mechanism

31: Cut off unit

311: Knife Wheel

312: Cutting Board Wheel

4: Folding mechanism

5: Welding mechanism

51: Welding unit

511: Welding device

512: Welding wheel

6: Conveying mechanism

61: Carrier

7: Guide board

8: Turn the wheel

9: Welding mechanism

91: Welding unit

911: Welding device

912: Welding Wheel

10: Hemming belt reel

A: Mask body

B: Earband

D: Conveying direction

200: Rear section machine

Claims (9)

A forming and welding device for ear straps of masks includes: A conveying mechanism, the conveying mechanism is provided with a plurality of bearing seats, the bearing seats can respectively place a mask body, the bearing seats can drive the mask bodies to advance along a conveying direction, and the two ear straps can be placed on the mask bodies. On the bearing seat, the two ear straps are in a continuous strip shape. Each bearing seat has two fixing parts and two clamping parts. The two clamping parts are movably arranged between the two fixing parts. The holding member can move toward or in the direction of the two fixing members; A cam mechanism having a linear cam, the linear cam having a first cam portion and a second cam portion, the first cam portion and the second cam portion extending along the conveying direction, the first cam portion The clamping members can be driven to move toward or in the direction of the two fixing members, so as to clamp or release the two ear straps; A cutting mechanism, the cutting mechanism is close to the conveying mechanism, the cutting mechanism includes two cutting units, the two cutting units are respectively corresponding to the two ear straps, can be used for the two long continuous ear straps Cut to a predetermined length; A plurality of belt folding mechanisms, the belt folding mechanisms are respectively arranged on the bearing seats, each of the belt folding mechanisms includes two first belt folding parts and two second belt folding parts, the two first belt folding parts and The two second belt-folding parts are movably arranged on the supporting base, and the second cam portion can drive the first belt-folding parts and the second belt-folding parts to move toward the ear belts, and push the The two ends of the ear straps are bent; and A welding mechanism, the welding mechanism is close to the conveying mechanism, the welding mechanism includes two welding units, the two welding units are respectively corresponding to the ear band, the two welding units can weld the two ends of the ear band to the The mask body. The earband forming and welding device for a mask according to claim 1, wherein the two fixing parts of the supporting base are close to two sides of the supporting base, and each of the fixing parts has a first side and two second sides, The first side extends along the conveying direction, the two second sides are respectively connected to the two ends of the first side, the two ear straps can be placed against the first side of the fixing members, and two of each of the supporting seats When the clamping piece moves toward the direction of the two fixing pieces, the two ear straps can be clamped between the two clamping pieces and the first edges of the two fixing pieces. According to claim 2, the earband forming and welding device of a mask, wherein the two second sides of each of the fixing members are perpendicular to the first side. The earband forming and welding device for a mask according to claim 1, wherein the first cam portion and the second cam portion are respectively formed on the upper half and the lower half of the linear cam, and the first cam portion and the second cam portion The two cam parts respectively form symmetrical cam surfaces on both sides. The earband forming and welding device for a mask according to claim 1, wherein the two clamping members of each of the supporting bases are each connected to a first roller, and the first rollers connected to the two clamping members respectively contact the first cam The two sides of the part enable the first cam part to push the first rollers to move inwardly and outwardly, so as to link the clamping members to move toward or reverse the direction of the fixed members. The earband forming and welding device for a mask according to claim 1, wherein each of the cutting units includes a knife wheel and an anvil plate wheel, the knife wheel and the anvil plate wheel are arranged oppositely, and the knife wheel has a plurality of knives, The knives are arranged at intervals on the outer edge of the cutting wheel, the cutting board wheel has a plurality of protrusions, and the protrusions are arranged at intervals on the outer edge of the cutting board wheel to drive the cutting wheel and the cutting board wheel to rotate , Cut the ear strap between the cutter wheel and the cutting board wheel to a predetermined length. According to claim 1, the earband forming and welding device of a mask, wherein the first folding parts and the second folding parts are each connected to a second roller through a connecting rod group, and the second rollers are in contact with each other On both sides of the second cam portion, the second cam portion can push the second rollers to move inwardly and outwardly, so that the second rollers can respectively move the first folds through the connecting rod groups. The belt piece and the second belt-folding pieces move toward or against the direction of the fixing piece, the first belt-folding piece can push one end of the ear strap to bend, and the second belt-folding piece can push the ear The other end of the belt is bent. The earband forming and welding device of the mask according to claim 1, wherein each of the welding units includes a welding device and a welding wheel, the welding wheel has a plurality of net-shaped protrusions, and the net-shaped protrusions are spaced apart from each other. It is arranged and protrudes from the outer edge of the welding wheel, and can drive the welding wheel to rotate, so that the mesh convex body of the welding wheel abuts against the welding device, and is used to weld and fix the two ends of the ear band to the mask body . According to claim 1, the ear strap forming and welding device of a mask, wherein each of the bearing seats is provided with a plurality of sliding grooves, the extending direction of the sliding grooves is perpendicular to the conveying direction, and the first belt folding parts and The second belt folding pieces are respectively slidably fitted in the sliding grooves.

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