CN115179562A

CN115179562A - Production process of headset sheath

Info

Publication number: CN115179562A
Application number: CN202210701637.8A
Authority: CN
Inventors: 陆惠民; 谭炬; 邓燕恒; 黄林辉; 杨绍兵
Original assignee: Huizhou Jue Rui Technology Co ltd
Current assignee: Huizhou Jue Rui Technology Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-10-14
Anticipated expiration: 2042-06-21
Also published as: CN115179562B

Abstract

The application relates to a production process of a headphone sheath, which comprises the following steps: cutting and pressing the cloth, namely cutting the cloth and then stamping the cut cloth to form upper cloth, lower leather and decorative strip cloth; processing the decorative strip cloth, wherein the decorative strip cloth is bonded with the PET plate through a bonding jig; assembling the upper cloth and the decorative strip cloth, wherein one side of the PET plate is bonded with the upper cloth, the PET plate is pressed by a pressing device after bonding, the upper cloth and two long side sides of the decorative strip cloth are sewn, and two ends of the decorative strip cloth are nailed; processing a lower leather, sewing the surface of the lower leather, and turning over and sewing the edges of two sides of the lower leather; the sheath assembly, wherein the upper cloth and the lower leather are fixed through an assembly jig, two sides of the upper cloth and the lower leather are sewn to form a semi-finished sheath product, the semi-finished sheath product is turned inside and outside through a sheath turning tool after sewing, an EVA plate penetrates through the turned semi-finished sheath product, and electric wires and foam are also penetrated through the semi-finished sheath product; and (3) hot air molding, namely hot air molding the finished sheath product. This application has the multiple operation of combination, improves work efficiency's effect.

Description

Production process of headset sheath

Technical Field

The application relates to the technical field of headphones, in particular to a production process of a headphone sheath.

Background

The headset is a common headset type in the market, and mainly comprises a headset structure, a left sound production unit and a right sound production unit which are respectively connected to two ends of the headset structure, wherein the headset structure is mainly a sheath formed by sewing an upper cloth, a lower leather and a decorative strip cloth. The shape of sheath can be supported to the hardboard that has certain hardness in the sheath, in addition, still can fill the sponge in the sheath to the comfort level of wearing the sheath is strengthened.

The head-wearing sheath is an important connecting structure for connecting the left sound production unit and the right sound production unit, electric wires penetrate through the head-wearing sheath, and penetrate out of two ends of the head-wearing sheath respectively and are connected with the left sound production unit and the right sound production unit respectively, so that the head-wearing earphone is formed.

At present, the process for producing the headset sheath on the market needs to produce the components of the sheath in batches, and then assemble and sew the components. In the process of assembling the sheath, each operation needs one worker to complete, and a sheath finished product needs a plurality of workers to complete processing together, so that the working efficiency is not high.

Disclosure of Invention

In order to improve the phenomenon that the production efficiency of the existing headset sheath is low, the application provides a production process of the headset sheath.

The application provides a production technology of headphone sheath adopts following technical scheme:

a production process of a headset sheath comprises the following steps:

s1, cutting and pressing cloth, cutting the cloth into a specified size, binding according to a specified number of layers, and sequentially stamping and forming the bound cloth to form upper cloth, lower leather and decorative strip cloth;

s2, processing the decorative strip cloth, wherein a PET (polyethylene terephthalate) plate is bonded on one side of the decorative strip cloth, and the decorative strip cloth and the PET plate are aligned, bonded and fixed through a bonding jig;

s3, assembling upper cloth and trim cloth, wherein one side, away from the trim cloth, of the PET plate is bonded with the upper cloth, the PET plate is pressed and fixed through a pressing device after being bonded, the upper cloth and two long side sides of the trim cloth are sewn, and two ends of the trim cloth are nailed;

s4, processing a lower leather, sewing the lower leather according to the tooth positions on the surface, turning over the edges of two sides of the lower leather to the other side of the lower leather, and bonding and sewing and fixing the turned-over edges;

s5, assembling a sheath, wherein the upper cloth and the lower leather are preliminarily fixed through an assembling jig, the two side edges of the upper cloth and the lower leather are sewn to form a semi-finished sheath product, the semi-finished sheath product is turned inside and outside through a sheath turning tool after being sewn, an EVA (ethylene vinyl acetate) plate penetrates through the turned semi-finished sheath product for supporting, and electric wires and foam cotton penetrate through the supported semi-finished sheath product to form a finished sheath product;

s6, hot air shaping, namely hot air shaping the sheath finished product.

By adopting the technical scheme, the cloth for manufacturing the headset sheath is cut into a proper size in advance, the cloth of different components is bound according to the specified number of layers, and the cloth is punched after binding is finished, so that upper cloth, lower leather and trim cloth are formed; firstly, processing the decoration strip cloth, utilizing a fitting jig to fixedly bond the decoration strip cloth with one side of a PET (polyethylene terephthalate) plate, fixedly bonding the outer edge of the decoration strip cloth with the outer edge of the PET plate, fixedly bonding the processed decoration strip cloth with the upper cloth through a pressing device, sewing and fixing the edges of the decoration strip cloth after fixing, and nailing the two ends of the decoration strip cloth after sewing so as to facilitate the subsequent threading of electric wires; then processing the lower leather, arranging dental floss on the surface of the lower leather, sewing the lower leather according to the position of the dental floss, and adhering and fixing the edges of two sides of the lower leather to the other side of the lower leather after sewing; then will go up cloth and skin down and fix in advance through the equipment tool, it is fixed to make things convenient for the follow-up to sew up fixedly, then sew up along the both sides long limit side reason of cloth and skin down and fix to overturn the formation sheath semi-manufactured goods through sheath upset instrument, the sheath semi-manufactured goods after the upset are worn to be equipped with the EVA board and are supported, thereby wear to establish the electric wire and steep cotton formation sheath finished product. The production process of the headset sheath utilizes various jigs and devices, integrates some operations in the production process, and improves the production efficiency.

Preferably, in the step S5, after the EVA sheet is inserted into the sheath semi-finished product, glue is coated on both ends of the EVA sheet, and the upper cloth of the sheath semi-finished product is turned over and bonded to the EVA sheet coated with the glue.

By adopting the technical scheme, after the EVA plate is penetrated through the semi-finished sheath product, the two ends of the EVA plate are bonded and fixed through the two sides of the upper cloth, so that the EVA plate and the semi-finished sheath product are fixedly connected, and the EVA plate is not easy to slide outside the semi-finished sheath product in use.

Preferably, in the step S5, the step of inserting the electric wire into the semi-finished product of the sheath includes inserting the electric wire into the semi-finished product of the sheath from the outside and inserting the electric wire out of two nail openings of the upper cloth.

Through adopting above-mentioned technical scheme, two nail mouths of going up cloth make things convenient for the electric wire to wear to locate in the sheath semi-manufactured goods promptly the both ends of back electric wire can be followed two nail mouths of going up cloth and worn out outside the sheath semi-manufactured goods.

Preferably, the pressing device comprises an operation table and a support frame arranged on the operation table, a rotary table is arranged on the operation table in a rotating mode, four placing grooves are formed in the rotary table, a rotary shaft is fixedly connected to the bottom of the rotary table, a driving piece is connected to one end of the rotary shaft after penetrating out of the operation table, a fixing seat is fixedly connected to the support frame, a suction assembly used for sucking assemblies in the placing grooves on the rotary table is borne on the fixing seat, and the suction assembly faces the surface of the rotary table.

Through adopting above-mentioned technical scheme, four standing grooves on the carousel can be used for placing different subassemblies in the production engineering, can make the carousel take place to rotate through the control driving piece to adjust different subassembly positions, the sucking disc through the absorption cylinder on the control support frame can absorb the subassembly in the standing groove, then control driving piece rotation carousel, the cylinder is so that different subassemblies make up in the uncontrolled suction, has simplified the operation of multistation.

Preferably, the four placing grooves are respectively used for placing a laminating jig placing groove of the laminating jig, a last placing groove for placing the upper cloth, a lower leather placing groove for placing the lower leather and an assembling jig placing groove for placing the assembling jig.

Through adopting above-mentioned technical scheme, different subassemblies are placed to four standing grooves, and what placed in the last cloth standing groove is last cloth, and what placed in the skin standing groove is the skin of making up after the processing down, and laminating tool and equipment tool all are the equipment of conveniently going up cloth and skin down and go up the bonding operation of cloth and trim cloth.

Preferably, the driving member is a stepping motor, and an output shaft of the stepping motor is connected with one end of the rotating shaft.

Through adopting above-mentioned technical scheme, when control step motor, ninety degree rotation can take place for the carousel to conveniently switch four standing grooves on the carousel, thereby make things convenient for compression fittings's operation.

Preferably, the suction assembly comprises a suction cylinder carried on the fixing seat and a suction disc connected with a piston rod of the suction cylinder, the piston rod of the suction cylinder is vertically downward, and the suction direction of the suction disc faces the surface of the rotary disc.

Through adopting above-mentioned technical scheme, absorb cylinder and sucking disc and can absorb the subassembly of placing in the standing groove on the carousel, absorb the cylinder and can drive the sucking disc and carry out elevating movement to absorb and place the subassembly.

Preferably, the laminating tool includes the attaching plate and sets up in be used for the holding on the attaching plate the first recess of PET board, be used for the holding the second recess of trim cloth and be used for the holding go up the third recess of cloth, the edge of second recess be provided with the folded plate of trim cloth edge looks adaptation.

Through adopting above-mentioned technical scheme, first recess, second recess and third recess on the rigging board are used for placing different subassemblies respectively, through placing different subassemblies in the recess to the realization is fixed to the bonding between the different subassemblies. The folded plate is convenient for the edge folding operation of the edge of the decoration strip cloth after the decoration strip cloth is required to be turned over when the decoration strip cloth is bonded with the PET plate, and the folded plate is convenient for the edge folding operation of the decoration strip cloth.

Preferably, the assembly jig comprises a bearing plate and a groove formed in the bearing plate, accommodating grooves are formed in two opposite sides of the groove, and a clamp used for clamping the side portions of the upper cloth and the lower leather is accommodated in the accommodating grooves.

Through adopting above-mentioned technical scheme, at first place cloth in the fluting, then place the hypodermis on the surface of cloth, the depressed part of anchor clamps carries out the hem through the surface to the one side of anchor clamps skin down towards the lateral part of cloth and hypodermis this moment to make anchor clamps centre gripping in the lateral part of last cloth and hypodermis, carry out preliminary fixed to last cloth and hypodermis, thereby be convenient for go up cloth and the both sides long fringe of hypodermis sew up fixedly.

Preferably, upset sheath instrument includes handheld end and exposed core, the both ends of handheld end respectively with two the exposed core is connected, the exposed core is kept away from the one end of handheld end is provided with and outwards is colluded the portion of holding that holds of holding the form, two the exposed core overcoat is equipped with the urceolus.

Through adopting above-mentioned technical scheme, after cloth and hypodermis are sewed up, because the sewing limit is exposed outside, need carry out positive and negative upset to the semi-manufactured goods of sheath, the upset sheath instrument has made things convenient for the upset of semi-manufactured goods of sheath, establishes the semi-manufactured goods cover of sheath outside the urceolus for the edge of two opposite sides of two semi-manufactured goods of sheath of centre gripping respectively of two exposed ends, holds the end through the pulling and moves to the another side, thereby overturns the semi-manufactured goods of sheath.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when pasting the operation to trim cloth and PET board and trim cloth and last cloth, all can realize through laminating tool and compression fittings, place the laminating tool in the standing groove of carousel, the laminating of trim cloth and PET board realizes bonding fixedly in the laminating tool. The suction cylinder is controlled to suck the upper cloth in the upper cloth placing groove by rotating the turntable, then the stepping motor is controlled to rotate to the attaching jig placing groove, and the suction cylinder is controlled to place the upper cloth in the attaching jig placing groove, so that the upper cloth and the decorative strip cloth can be adhered and fixed; the preliminary fixing of the upper cloth and the lower leather is realized by assembling a jig and a pressing device. Different jigs are arranged on the turntable, so that the complicated operation procedures are reduced, and the working efficiency is improved;

2. sheath upset instrument is through establishing sheath semi-manufactured goods cover outside the urceolus, with two opposite sides of two clamping ends centre gripping sheath semi-manufactured goods one end respectively, can easily realize the upset of sheath semi-manufactured goods through the handheld end of hand power, does not need artifical troublesome upset to sheath semi-manufactured goods, has improved work efficiency.

Drawings

FIG. 1 is a flow chart of a process for manufacturing a headphone cover according to the present disclosure

FIG. 2 is a schematic view showing the overall structure of an upper cloth, a lower leather, a decorative stripe cloth and a PET plate in the embodiment of the present application;

FIG. 3 is a schematic view of the overall structure of the cutting bed in the embodiment of the present application;

FIG. 4 is a schematic view of the overall structure of the bonding jig according to the embodiment of the present application;

FIG. 5 is a schematic view of the overall structure of the pressing device in the embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a bonding jig according to an embodiment of the present application;

fig. 7 is a schematic view of the overall structure of the assembly jig in the embodiment of the present application;

FIG. 8 is a schematic view showing the overall structure of a sheath eversion tool in the embodiment of the present application;

fig. 9 is a schematic cross-sectional view of a sheath inversion tool in an embodiment of the present application.

In the figure, 1, cloth is coated; 2. peeling; 3. a decorative strip cloth; 4. a PET plate; 5. a frame; 51. a work table; 511. a slide rail; 5111. a strip-shaped groove; 5112. a screw rod; 5113. cutting knife; 5114. a drive motor; 52. a roll axis; 521. a roller; 522. a connecting rod; 53. a guide rail; 6. attaching a plate; 61. a first groove; 62. a second groove; 621. folding the plate; 63. a third groove; 7. an operation table; 71. a support frame; 711. a fixed seat; 712. a suction cylinder; 713. a suction cup; 72. a turntable; 721. fitting a jig placing groove; 722. arranging a placing groove; 723. a hide placing groove; 724. assembling a jig placing groove; 725. a rotating shaft; 726. a bearing; 727. a stepping motor; 8. carrying a plate; 81. grooving; 82. a containing groove; 821. a clamp; 9. a sheath inversion tool; 91. a handheld end; 92. a clamping end; 93. an outer cylinder; 94. a chute; 95. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to fig. 1-9.

A process for producing a headphone cover, referring to fig. 1, includes:

s1, cutting and pressing the cloth, cutting the cloth into a specified size, binding the cloth according to a specified number of layers, and sequentially stamping the bound cloth to form an upper cloth 1, a lower leather 2 and a trim cloth 3;

s2, processing the decorative strip cloth 3, adhering a PET (polyethylene terephthalate) plate 4 to one side of the decorative strip cloth 3, and aligning, adhering and fixing the decorative strip cloth 3 and the PET plate 4 through an adhering jig;

s3, assembling the upper cloth 1 and the trim cloth 3, adhering one side of the PET plate 4, which is far away from the trim cloth 3, to the upper cloth 1, pressing and fixing the PET plate through a pressing device after adhesion, sewing the two long side sides of the upper cloth 1 and the trim cloth 3, and nailing two ends of the trim cloth 3;

s4, processing the lower leather 2, sewing the lower leather 2 according to the tooth positions on the surface, turning over the edges of two sides of the lower leather 2 to the other side of the lower leather 2, and bonding and sewing and fixing the turned-over edges;

s5, assembling a sheath, namely primarily fixing the upper cloth 1 and the lower leather 2 through an assembling jig, sewing the two side edges of the upper cloth 1 and the lower leather 2 to form a semi-finished sheath product, turning the semi-finished sheath product inside and outside through a sheath turning tool after sewing, penetrating an EVA (ethylene vinyl acetate) plate into the turned semi-finished sheath product for supporting, and penetrating electric wires and foam cotton into the supported semi-finished sheath product to form a finished sheath product;

s6, hot air molding, namely hot air molding the sheath finished product.

Referring to fig. 1 and 2, in step S1, the fabric is cut by a cutting machine, the fabric is laid on the cutting machine, the fabric is cut according to the size specified by the engineering, and the cut fabric is bound according to the specified number of layers, where the number of layers is specified as: 1 ten layers of upper cloth, 2 ten layers of lower leather and 3 ten layers of decorative strip cloth. The punched cloth is punched and formed through a punching machine in sequence, and the punching layers are still punched according to 1 ten layers of upper cloth, 2 ten layers of lower skin and 3 ten layers of decorative strip cloth. The cloth is flatly placed on a punching bed, the punching grain direction is carried out according to a drawing, and an upper cloth 1, a lower skin 2 and a decorative strip cloth 3 in an appointed shape are generated. Wherein, go up cloth 1 and lower skin 2 and all be including the main cloth that is the rectangle setting and the vice cloth that outwards is protruding form setting along the relative both sides of main cloth, main cloth and vice cloth are integrated into one piece and set up. The size of the decorative strip cloth 3 is smaller than that of the upper cloth 1 and the lower leather 2, and the shape of the decorative strip cloth 3 is the same as that of the upper cloth 1.

In the step S2, the PET plate 4 and the decoration cloth 3 need to be pressed tightly, the centrifugal paper of the PET plate 4 is torn off, the glue surface is placed upwards into the attaching jig, and then the decoration cloth 3 is placed into the attaching jig with the right side upwards to attach the PET plate 4. PET board 4 needs align between two parties, and PET board 4 and the fitting back of trim cloth 3 can not misplace. After the fitting, glue is coated on the edges of the periphery of the decorative strip cloth 3, and then the edge folding operation is carried out according to the edge of the PET plate 4, so that the decorative strip cloth 3 tightly wraps the edge of the PET plate 4.

In the step S3, the semi-finished product board surface after the decoration strip cloth 3 and the PET board 4 are attached enables the PET board 4 to face upwards and is placed in the attaching jig, glue is coated on the central position of the PET board 4, the bottom surface of the upper cloth 1 faces upwards and is attached and fixed with the decoration strip cloth 3, and the upper cloth 1 and the decoration strip cloth 3 are tightly attached after the attachment is completed. The attached upper fabric 1 needs to be sewn and fixed along the edge of the trim fabric 3, and the sewn semi-finished product cannot be turned. The nailing operation of the sewn semi-finished product is to nail on both sides of the trim cloth 3 opposite to each other.

In the step S4, the lower skin 2 is sutured according to the tooth positions on the lower skin 2, the tooth positions need to be sutured in the opposite direction, and both ends of the lower skin 2 need to be sutured. Two ends of the lower leather 2 need to be coated with glue and subjected to edge folding operation to form a shape with two ends not protruding outwards.

In the step S5, the semi-finished upper skin and the sewn lower skin 2 are aligned and overlapped, the cut edges of the upper cloth 1 and the lower skin 2 are aligned, and the sewing operation of the edges of the two sides can be performed. Need wear to establish the EVA board in the semi-manufactured goods of sheath and support the semi-manufactured goods shape of sheath, the semi-manufactured goods of sheath that will wear the good EVA board carries out the plastic, make the sheath level and smooth, the sewing edge distance is even unanimous, and coat glue with EVA both sides edge and last cloth 1 corresponding both sides edge, go up cloth 1 and carry out the hem operation to the EVA board that the coating has glue, hem length is 8mm on the whole, thereby make the both sides edge bonding of cloth 1 both sides edge and EVA board fixed.

Then, the electric wire penetrates into the semi-finished product of the sheath from an opening on one side of the semi-finished product of the sheath, two ends of the electric wire respectively penetrate out from two holes of the upper cloth 1, and the electric wire penetrates out from the holes to be consistent in length.

And finally, taking a piece of foam, wherein the shape and the size of the foam are consistent with those of the upper cloth 1, the foam is soft and is not easy to penetrate into the semi-finished sheath product, the foam and a lower plate with certain hardness are required to penetrate into the semi-finished sheath product with the electric wire, after one end of the lower plate penetrates into the semi-finished sheath product and the two ends of the lower plate penetrate out of one end of the two sides of the semi-finished sheath product for a distance, one end of the foam is pressed, and the lower plate is taken out. And reshaping the sheath with the foam.

In the step S6, the finished sheath product is shaped, the hot air blower is used for heating to about 120 degrees to shape the sheath product, the shaped sheath product is subjected to comprehensive inspection, and the sheath product can be packaged after the inspection is qualified.

Referring to fig. 3, the cutting machine includes a frame 5, one side of the frame 5 is a feeding end of the cloth, and one side of the frame 5 far away from the feeding end is a cutting table 51. The both sides that workstation 51 is relative are connected with slide rail 511, slide rail 511 sets up along the width direction who spanes frame 5, bar groove 5111 has been seted up towards one side on workstation 51's surface to slide rail 511, the internal rotation of bar groove 5111 is provided with lead screw 5112, be connected with on the lead screw 5112 and cut sword 5113, cut and wear to be equipped with on the sword 5113 and be used for the screw hole with lead screw 5112 screw-thread fit, the one end of lead screw 5112 is worn out slide rail 511 and is connected with driving motor 5114, driving motor 5114's output shaft is connected with lead screw 5112. One side of the frame 5, which is far away from the working table 51, is further provided with a rolling shaft 52 for flattening the cloth material in a sliding manner, two opposite sides of the frame 5 are provided with guide rails 53, two ends of the rolling shaft 52 are respectively connected with the guide rails 53 at the two sides in a sliding manner, the rolling shaft 52 comprises a rolling shaft 521 arranged in a roller shape and connecting rods 522 respectively arranged at two ends of the rolling shaft 521, and the two connecting rods 522 are respectively connected with the guide rails 53 at the two sides in a sliding manner, so that the rolling shaft 52 can slide along the length direction of the guide rails 53 to flatten the surface of the cloth material. The cloth is conveyed to the rack 5 from the lower part of the belt, and the surface of the cloth rolls back and forth through the rolling shaft 52 to flatten the surface of the cloth, so that the surface of the cloth is smooth, and the cutting knife 5113 is convenient to cut the cloth.

Referring to fig. 4, the attaching jig includes the attaching plate 6 and opens the first groove 61, the second groove 62, the third groove 63 on the attaching plate 6, the shape and size of the first groove 61 and the shape and size of the PET plate 4 are matched, the shape and size of the second groove 62 and the shape and size of the decoration cloth 3 are matched, and the shape and size of the third groove 63 and the shape and size of the upper cloth 1 are matched. The outer edge of the second groove 62 is hinged with a flap 621 matched with the outer edge of the decorative strip cloth 3. When the PET plate 4 and the decoration strip cloth 3 are attached, after the PET plate 4 is torn off the centrifugal paper, the glue surface is placed in the first groove 61 upwards, and the decoration strip cloth 3 is placed in the second groove 62, so that the PET plate 4 in the first groove 61 is adhered and fixed. And the decorative strip cloth 3 is turned over in the front and back directions after being fixed, glue is coated on the edge of the decorative strip cloth 3 relative to the PET plate 4, and the edge of the decorative strip cloth 3 is folded and fixed to the PET plate 4 by turning the folded plate 621 outside the second groove 62.

Referring to fig. 5 and 6, the pressing device includes an operation table 7 and a support frame 71 disposed on the operation table 7, a turntable 72 is rotatably disposed on the operation table 7, four placing grooves are disposed on the turntable 72, and the four placing grooves are respectively a bonding jig placing groove 721 for placing a bonding jig, an upper cloth placing groove 722 for placing an upper cloth 1, a lower skin placing groove 723 for placing a lower skin 2, and an assembly jig placing groove 724 for placing an assembly jig. The bottom of the rotary plate 72 is fixedly connected with a rotating shaft 725, and the other end of the rotating shaft 725 is rotatably connected with the operating platform 7. A round hole is formed in the operating platform 7, a bearing 726 is arranged in the round hole, an outer ring of the bearing 726 is fixedly connected with the inner wall of the round hole, and an inner ring of the bearing 726 is connected with one end, away from the turntable 72, of the rotating shaft 725. A stepping motor 727 is arranged below the operating platform 7, and an output shaft of the stepping motor 727 is connected with one end of the rotating shaft 725 penetrating out of the operating platform 7. When the stepping motor 727 is controlled, the turntable 72 can rotate 90 degrees relative to the operation table 7, so that different jigs can be replaced.

Referring to fig. 5 and 6, the supporting frame 71 is vertically disposed, and a fixing seat 711 is fixedly connected to one side of the supporting frame 71 opposite to the rotating disc 72. The fixed seat 711 carries a suction cylinder 712, a piston rod of the suction cylinder 712 passes downward through the upper and lower surfaces of the fixed seat 711 and is connected with a suction cup 713 for sucking air, and an air suction port of the suction cup 713 faces the surface of the rotary table 72.

Referring to fig. 5 and 6, when the trim cloth 3 and the upper cloth 1 are assembled, the processed PET plate 4 of the trim cloth 3 is placed in the second groove 62 of the attaching jig with the face facing upward, and glue is applied to the PET plate 4. The upper cloth 1 is placed in the upper cloth placing groove 722, the stepping motor 727 is driven to drive the rotary table 72 to rotate to the position below the suction cylinder 712 to form the upper cloth placing groove 722, the suction cylinder 712 is driven to suck the upper cloth 1 in the upper cloth placing groove 722 downwards, the stepping motor 727 is controlled to control the rotary table 72 to rotate to the attaching jig placing groove 721 after suction, the suction cylinder 712 is controlled to place the upper cloth 1 into the third groove 63 downwards, and the suction cylinder 712 is closed to adhere and fix the upper cloth 1 and the decoration cloth 3 in the second groove 62. And sewing and fixing the upper cloth 1 along the edge of the trim cloth 3, and performing nailing operation on two opposite sides of the trim cloth 3 after fixing so that both sides of the upper cloth 1 are provided with holes.

Referring to fig. 7, the assembly fixture includes a rectangular bearing plate 8, a slot 81 is formed on the bearing plate 8, and the size of the slot 81 is matched with the size of the upper cloth 1. The opposite two sides of the slot 81 are provided with a containing groove 82, a clamp 821 is arranged in the containing groove 82, the clamp 821 is arranged in an L shape, the clamp 821 is made of bendable metal materials, one side of the clamp 821 can be folded towards the other side, and the clamp 821 with a C-shaped section is formed. One side of the clamp 821 is received in the receiving groove 82, and the other side of the clamp 821 is perpendicular to the receiving groove 82.

Referring to fig. 5 and 7, when the upper cloth 1 and the lower leather 2 are assembled, the processed lower leather 2 is placed in a lower leather placing groove 723 in the rotary table 72, after the upper cloth 1 is placed in the groove 81, the stepping motor 727 is controlled to rotate the rotary table 72 until the lower leather placing groove 723 is positioned below the suction cylinder 712, the suction cylinder 712 is driven to move the suction cup 713 downward and suck the lower leather 2 upward, the rotary table 72 is rotated to the assembling jig placing groove 724 positioned below the suction cylinder 712 by controlling the stepping motor 727, the lower leather 2 is stacked above the upper cloth 1 by controlling the suction cylinder 712 downward, the concave part of the clamp 821 faces the side parts of the upper cloth 1 and the lower leather 2, one side of the clamp 821 extending out of the containing groove 82 is bent to abut against the surface of the lower leather 2, the clamp 821 preliminarily fixes the upper cloth 1 and the lower leather 2, and the overlapped edge of the upper cloth 1 and the lower leather 2 is sewn.

Referring to fig. 8 and 9, sheath turning tool 9 includes handheld end 91 and holder 92, handheld end 91 is used for supplying the people's hand to hold and operate, holder 92 is used for pressing from both sides two opposite sides of tight sheath, the cross-section of handheld end 91 is the n type setting, the both ends of handheld end 91 are connected with two holders 92 respectively, holder 92 is vertical shaft-like setting, the one end that holder 92 kept away from handheld end 91 is provided with outwards is the portion of colluding and holding, holder 92 is made for metal material, the portion overcoat that colludes of holder 92 is equipped with the rubber sleeve that is used for preventing the portion of colluding bad sheath that colludes, two holders 92 overcoat still are equipped with urceolus 93, the relative two portions of colluding of one side that urceolus 93 is close to the portion of colluding offer and are used for supplying the gliding spout 94 of portion of colluding, be provided with stopper 95 in the spout 94, stopper 95 slidable sets up in spout 94, stopper 95 can restrict two portions of colluding and hold and move to the direction that is close to each other. When the semi-finished sheath needs to be turned over, the semi-finished sheath is sleeved outside the sheath turning tool 9, the two clamping ends 92 respectively clamp two opposite sides of one end of the semi-finished sheath, the semi-finished sheath is turned over by pulling the handheld end 91, the clamping ends 92 slide out from the other end of the semi-finished sheath, and therefore turning over of the semi-finished sheath is completed. The sliding groove 94 also enables the outer cylinder 93 to slide relative to the sliding groove 94 in the length direction so as to tighten the side portions of the two clamping ends 92, thereby facilitating storage.

The implementation principle of the application is as follows: cutting the cloth for manufacturing the headphone sheath into proper sizes in advance, binding the cloth of different components according to the specified number of layers, and punching the cloth after binding is finished so as to form an upper cloth 1, a lower skin 2 and a trim cloth 3; firstly, processing a decoration strip cloth 3, adhering and fixing the decoration strip cloth 3 and one side of a PET (polyethylene terephthalate) plate 4 by using an adhering jig, adhering and fixing the outer edge of the decoration strip cloth 3 and the outer edge of the PET plate 4, adhering and fixing the processed decoration strip cloth 3 and an upper cloth 1 by using a pressing device, sewing and fixing the edge of the decoration strip cloth 3 after fixing, and nailing at two ends of the decoration strip cloth 3 after sewing so as to facilitate the subsequent threading of electric wires; then processing the lower leather 2, arranging dental floss on the surface of the lower leather 2, sewing the lower leather 2 according to the position of the dental floss, and adhering and fixing the two side edges of the lower leather 2 to the other side of the lower leather 2 after sewing; then will go up cloth 1 and skin 2 and fix in advance through the equipment tool, convenient follow-up sewing up fixedly, then sew up fixedly along the long avris edge of the both sides of last cloth 1 and skin 2 to overturn the sheath through sheath upset instrument 9 and form the sheath semi-manufactured goods, the sheath semi-manufactured goods after the upset are worn to be equipped with the EVA board and are supported, and wear to establish the electric wire and steep cotton formation sheath finished product. The production process of the headset sheath uses various jigs and devices, integrates some operations in the production process, and improves the production efficiency.

The embodiments of the present disclosure are all preferred embodiments of the present disclosure, and the protection scope of the present disclosure is not limited thereby, wherein like parts are designated by like reference numerals. Therefore, the method comprises the following steps: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A production process of a headset sheath is characterized by comprising the following steps:

s1, cutting and pressing cloth, namely cutting the cloth into a specified size, binding the cloth according to a specified number of layers, and sequentially stamping the bound cloth to form an upper cloth (1), a lower leather (2) and a trim cloth (3);

s2, processing the decorative strip cloth (3), wherein a PET (polyethylene terephthalate) plate (4) is bonded on one side of the decorative strip cloth (3), and the decorative strip cloth (3) and the PET plate (4) are aligned, attached and fixed through an attaching jig;

s3, assembling the upper cloth (1) and the trim cloth (3), bonding one side, away from the trim cloth (3), of the PET plate (4) with the upper cloth (1), pressing and fixing the PET plate through a pressing device after bonding, sewing the two long side edges of the upper cloth (1) and the trim cloth (3), and nailing two ends of the trim cloth (3);

s4, processing a lower leather (2), sewing the lower leather (2) according to the tooth positions on the surface, turning over the edges of two sides of the lower leather (2) to the other side of the lower leather (2), and bonding and sewing the turned-over edges for fixing;

s5, assembling a sheath, wherein the upper cloth (1) and the lower leather (2) are preliminarily fixed through an assembling jig, the two side edges of the upper cloth (1) and the lower leather (2) are sewn to form a semi-finished sheath product, the semi-finished sheath product is turned inside and outside through a sheath turning tool after being sewn, an EVA (ethylene vinyl acetate) plate penetrates through the turned semi-finished sheath product to support, and electric wires and foam cotton penetrate through the supported semi-finished sheath product to form a finished sheath product;

s6, hot air shaping, namely hot air shaping the sheath finished product.

2. The production process according to claim 1, wherein in the step S5, after the EVA sheet is inserted into the semi-finished sheath product, glue is applied to both ends of the EVA sheet, and the upper cloth (1) in the semi-finished sheath product is turned over and bonded to the EVA sheet coated with glue.

3. The production process according to claim 1, wherein in the step S5, the step of threading the electric wires into the semi-finished sheath product comprises the step of threading the electric wires into the semi-finished sheath product from the outside and out of two nail holes of the upper cloth (1).

4. The production process according to claim 1, wherein the pressing device comprises an operation table (7) and a support frame (71) arranged on the operation table (7), a rotating disc (72) is rotatably arranged on the operation table (7), four placing grooves are formed in the rotating disc (72), a rotating shaft (725) is fixedly connected to the bottom of the rotating disc (72), one end of the rotating shaft (725) penetrates through the operation table (7) and is connected with a driving part, a fixed seat (711) is fixedly connected to the support frame (71), a suction assembly for sucking the assembly in the placing grooves on the rotating disc (72) is carried on the fixed seat (711), and the suction assembly faces the surface of the rotating disc (72).

5. The production process according to claim 4, wherein the four placing grooves are respectively a bonding jig placing groove (721) for placing the bonding jig, an upper cloth placing groove (722) for placing the upper cloth (1), a lower leather placing groove (723) for placing the lower leather (2), and an assembly jig placing groove (724) for placing the assembly jig.

6. The production process according to claim 4, wherein the driving member is a stepping motor (727), and an output shaft of the stepping motor (727) is connected with one end of the rotating shaft (725).

7. The production process according to claim 4, wherein the suction assembly comprises a suction cylinder (712) carried on the fixed seat (711) and a suction cup (713) connected with a piston rod of the suction cylinder (712), the piston rod of the suction cylinder (712) is vertically downward, and a suction direction of the suction cup (713) is toward the surface of the turntable (72).

8. The production process according to claim 1, characterized in that the attaching jig comprises an attaching plate (6) and a first groove (61) which is arranged on the attaching plate (6) and used for accommodating the PET plate (4), a second groove (62) used for accommodating the trim cloth (3) and a third groove (63) used for accommodating the upper cloth (1), wherein a folded plate (621) which is matched with the edge of the trim cloth (3) is arranged at the edge of the second groove (62).

9. The production process according to claim 1, wherein the assembly jig comprises a bearing plate (8) and a slot (81) formed in the bearing plate (8), receiving grooves (82) are formed in two opposite sides of the slot (81), and a clamp (821) for clamping the side portions of the upper cloth (1) and the lower leather (2) is accommodated in the receiving grooves (82).

10. The production process according to claim 1, wherein the turnover sheath tool comprises a handheld end (91) and two clamping ends (92), two ends of the handheld end (91) are respectively connected with the two clamping ends (92), one end, far away from the handheld end (91), of each clamping end (92) is provided with a hooking portion in an outward hooking manner, and outer cylinders (93) are sleeved outside the two clamping ends (92).