Method for manufacturing a shoulder pad and shoulder pad

Abstract

The present application relates to a kind of shoulder pad preparation method and shoulder pad, method includes the following steps: S1, preparation composite fabric, first cotton cutting plate, second cotton cutting plate, composite fabric includes the fabric layer and the layer of cotton that are bonded;S2, first cotton cutting plate, second cotton cutting plate are bonded between fabric layer and cotton layer, so that first cotton cutting plate and second cotton cutting plate are placed side by side, and gap is kept between first cotton cutting plate and second cotton cutting plate, then composite fabric is folded along gap place to make first cotton cutting plate, second cotton cutting plate is arranged and bonded in opposite directions, and get cutting piece;S3, cutting piece after folding is transferred to forming mould and is carried out hot pressing setting;S4, the edge of cutting piece after setting is punched, and shoulder pad is obtained.The method provided by the present application ensures that the shoulder pad does not leak cotton after mould pressing, and the shoulder pad has a smooth trace-free surface.The shoulder pad product is efficiently made, and the required shape shoulder pad can be accurately prepared.The shoulder pad is consistent with the human shoulder shape, comfortable to wear, durable, and has good shape retention after washing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of clothing, and particularly relates to a shoulder pad preparation method and shoulder pad. BACKGROUND

[0002] There are three kinds of shoulder pads on the market at present, and the manufacturing methods of the three kinds of shoulder pads are different, which are as follows:

[0003] 1. One layer of excavated cotton and one layer of fabric are used to wrap the sponge to form the shoulder pad, the periphery of the shoulder pad needs to be treated by sewing line, the appearance is not neat and clean, and the looseness between the sponge and the fabric causes uneven wearing;

[0004] 2. The fabric is directly sewn on the shoulder pad flat sponge, the appearance line is obvious and not clean, and the shoulder pad flat sponge needs to be cut into the required shape before being sewn with the fabric, which is not only troublesome and low in efficiency, but also cannot follow the shape of the shoulder;

[0005] 3. A layer of sponge is sandwiched between two layers of fabric, the sponge has an arc and a thickness, the sponge needs to be cut into the required shape before being sewn with the fabric, and the sponge is not easy to be wrapped due to the arc and thickness, and the line is obvious. SUMMARY

[0006] The present application aims to provide a shoulder pad preparation method and shoulder pad.

[0007] To achieve the above-mentioned purpose, a technical solution adopted by the present application is as follows:

[0008] A shoulder pad preparation method comprises the following steps:

[0009] S1, preparing a composite fabric, a first cotton cutting plate and a second cotton cutting plate, the composite fabric comprising a fabric layer and a cotton layer which are bonded together;

[0010] S2, bonding the first cotton cutting plate and the second cotton cutting plate between the fabric layer and the cotton layer, placing the first cotton cutting plate and the second cotton cutting plate side by side, maintaining a gap between the first cotton cutting plate and the second cotton cutting plate, and then folding the composite fabric along the gap to place the first cotton cutting plate and the second cotton cutting plate oppositely and bond them together to obtain a cutting piece;

[0011] S3, moving the folded cutting piece to a forming mold for hot pressing and shaping;

[0012] S4, punching the edge of the shaped cutting piece to obtain a shoulder pad.

[0013] Preferably, in step S1, the first shaving plate and the second shaving plate each comprise an upper surface, a lower surface, a vertical surface and an annular surface, the upper surface and the lower surface are oppositely arranged, the vertical surface and the annular surface are connected, and the vertical surface and the annular surface are connected between the upper surface and the lower surface.

[0014] Preferably, in step S1, the thickness of the first shaving plate and the second shaving plate gradually decreases from the vertical surface to the annular surface away from the end of the vertical surface.

[0015] Preferably, in step S3, the temperature of hot pressing and shaping is 180-200°C, and the time of hot pressing and shaping is 180-200s.

[0016] Preferably, in step S3, the forming mold comprises a punch, a die and a baffle, and the baffle is located on the same side of the punch and the die.

[0017] The punch is a central symmetric structure, the upper side of the punch is a convex arc shape, the convex arc shape protrudes upward, the upper side of the punch is provided with a left end and a right end along the center line, the left end is close to the baffle, and the right end is away from the baffle, and the upper side of the punch extends upward and inclines away from the baffle from the left end to the right end.

[0018] The die is provided with a groove matched with the punch, and the groove is provided with a left end and a right end along the center line, and the groove extends upward and inclines away from the baffle from the left end to the right end.

[0019] The included angle between the line connecting the left end and the right end of the upper side of the punch and the horizontal plane is greater than or equal to the included angle between the line connecting the left end and the right end of the groove of the die and the horizontal plane.

[0020] Preferably, the die is a central symmetric structure, the left side of the die is located on the same vertical surface as the left side of the punch, and in the use state, the baffle can abut against the left side of the die and the left side of the punch.

[0021] Preferably, in step S2, the first shaving plate and the second shaving plate are folded to form an upper layer, a folding surface and a lower layer, the upper layer is located above the lower layer, and the folding surface connects the upper layer and the lower layer; in step S3, the folding surface of the first shaving plate and the second shaving plate corresponds to the baffle, and the upper layer and the lower layer correspond to the groove of the die and the punch respectively.

[0022] Preferably, in step S4, the edges of the shaped pieces are punched by an ultrasonic punching mechanism to obtain the shoulder pads.

[0023] Preferably, in step S1, the composite fabric comprises a fabric layer and a cotton layer which are bonded together, the fabric layer is selected from tricot fabric, Jiajiu cloth or bird's eye cloth; the cotton layer is selected from sponge or fiber cotton; the first cotton cutting plate and the second cotton cutting plate are both cotton materials.

[0024] Another technical solution adopted by the present application is:

[0025] A shoulder pad prepared by the shoulder pad preparation method.

[0026] Due to the use of the above technical solutions, the present application has the following advantages compared with the prior art: the shoulder pad preparation method provided by the present application ensures that the shoulder pad product after molding does not leak cotton, and the shoulder pad has no trace and a smooth surface; the shoulder pad product is made with high efficiency, and the shoulder pad of the required shape can be accurately prepared; the shoulder pad is inlaid with the human shoulder shape, comfortable to wear, durable, and good in shape retention after washing. BRIEF DESCRIPTION OF DRAWINGS

[0027] FIG. 1 is a first perspective view of the overall structure of the molding die provided by the present application; Figure 1

[0028] FIG. 2 is a second perspective view of the overall structure of the molding die provided by the present application; Figure 2

[0029] FIG. 3 is a perspective view of the overall structure of the molding die provided by the present application (without a baffle); Figure 3

[0030] FIG. 4 is a structure view of the male die of the molding die provided by the present application (without a baffle); Figure 4

[0031] FIG. 5 is a first perspective view of the structure of the male die of the molding die provided by the present application; Figure 5

[0032] FIG. 6 is a second perspective view of the structure of the male die of the molding die provided by the present application; Figure 6

[0033] FIG. 7 is a first perspective view of the structure of the female die of the molding die provided by the present application; Figure 7

[0034] FIG. 8 is a second perspective view of the structure of the female die of the molding die provided by the present application (without a baffle); Figure 8

[0035] FIG. 9 is a third perspective view of the structure of the female die of the molding die provided by the present application; Figure 9

[0036] FIG. 10 is a first perspective view of the structure of the shoulder pad provided by the present application; Figure 10

[0037] FIG. 11 is a second perspective view of the structure of the shoulder pad provided by the present application.​​​​​​​​​​Figure 11 A structural diagram of the shoulder pad provided by the present invention from a second perspective;

[0038] Appendix Figure 12 A structural diagram of the shoulder pad provided by the present invention from a third perspective;

[0039] Appendix Figure 13 A structural diagram of the shoulder pad provided by the present invention from a fourth perspective;

[0040] Appendix Figure 14 A top view of the shoulder pad provided by the present invention;

[0041] Appendix Figure 15 A side view of the shoulder pad provided by the present invention;

[0042] Appendix Figure 16 A structural diagram of the shoulder pad provided by the present invention from a fifth perspective;

[0043] Appendix Figure 17 This is a structural diagram of the ultrasonic punching mechanism provided by the present invention;

[0044] Appendix Figure 18 Top view of the first cotton-shaving board and the second cotton-shaving board provided by the present invention;

[0045] Appendix Figure 19 This is a structural diagram of the composite fabric provided by the present invention.

[0046] In the attached diagrams above:

[0047] 1-Punch, 11-Upper side, 111-First arc-shaped side, 112-Second arc-shaped side, 12-Left side, 13-Right side, 14-Lower side, 15-Lower positioning slope, 16-Extension surface, 2-Die, 21-Upper side, 22-Left side, 23-Right side, 24-Lower side, 241-First arc-shaped side, 242-Second arc-shaped side, 25-Upper positioning slope, 3-Baffle, 4-Composite fabric, 5-First cotton-cutting plate, second cotton-cutting plate, 6-Ultrasonic punching head, 7-Shoulder pad, 71-Upper surface, 72-Lower surface, 73-Side surface. Detailed Implementation

[0048] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0049] A method for preparing a shoulder pad includes the following steps:

[0050] S1. Prepare the composite fabric, the first cotton-shaving board, and the second cotton-shaving board. The composite fabric includes a bonded fabric layer and a cotton layer.

[0051] S2, the first cutting cotton board and the second cutting cotton board are bonded between the fabric layer and the cotton layer, the first cutting cotton board and the second cutting cotton board are placed side by side (in the same plane), the first cutting cotton board and the second cutting cotton board are opposite to each other and a gap is kept between them, then the composite fabric is folded along the gap to make the first cutting cotton board and the second cutting cotton board opposite to each other and bonded, and a cutting piece is obtained, wherein the cutting piece has a folding surface, an upper layer (shoulder tongue upper part) and a lower layer (shoulder tongue lower part) after folding.

[0052] S3, the cutting piece after folding is transferred to a forming mold for hot pressing and shaping.

[0053] S4, the edge of the cutting piece after shaping is punched to obtain a shoulder pad.

[0054] In step S1, the first cutting cotton board and the second cutting cotton board have various structures, for example, referring to Figure 18 , the first cutting cotton board and the second cutting cotton board each include an upper surface, a lower surface, a vertical surface and an annular surface, the upper surface and the lower surface are opposite to each other, the vertical surface is connected with the annular surface and the two are connected between the upper surface and the lower surface.

[0055] Correspondingly, in step S2, when the first cutting cotton board and the second cutting cotton board are bonded between the fabric layer and the cotton layer, the vertical surfaces of the first cutting cotton board and the second cutting cotton board are opposite to each other and a gap is kept between them (see k in Figure 19 ), then the composite fabric is folded along the gap to make the upper surfaces of the two opposite to each other and bonded (the first cutting cotton board is above the second cutting cotton board or the second cutting cotton board is above the first cutting cotton board, and the upper surfaces of the two cutting cotton boards are attached), and a cutting piece is obtained.

[0056] Further, referring to Figure 18 , the thickness of the first cutting cotton board and the second cutting cotton board is uniform, or the annular surface of the first cutting cotton board and the second cutting cotton board is an arc surface, the thickness of the first cutting cotton board and the second cutting cotton board gradually decreases from the vertical surface to the end of the annular surface away from the vertical surface, so that the thickness of the shoulder pad 7 gradually decreases from the left shoulder end to the right shoulder end in the center line direction after the shoulder pad is molded by the forming mold.

[0057] In step S2, the first cutting cotton board and the second cutting cotton board are folded to form an upper layer, a folding surface and a lower layer, the upper layer is above the lower layer, and the folding surface connects the upper layer and the lower layer; in step S2, the cotton layer of the composite fabric is sprayed with glue corresponding to the first cutting cotton board and the second cutting cotton board, and the composite fabric is folded along the gap to make the first cutting cotton board and the second cutting cotton board better bonded together.

[0058] In step S1, the composite fabric comprises a fabric layer and a cotton layer which are bonded together, the fabric layer is selected from a jacquard fabric, a Jiaji fabric or a bird's eye fabric; the fabric layer is selected from a jacquard fabric, a Jiaji fabric or a bird's eye fabric, all of which are conventional fabrics and have elasticity, the jacquard fabric is divided into warp knitting and weft knitting, and the warp knitting has better elasticity and higher spandex content; the main feature of the polyamide fabric is that it is strong, wear-resistant, elastic, smooth, high-strength, wear-resistant and moisture-absorbing; the bird's eye fabric is a weft-knitted mesh fabric made of 100% polyester; the Jiaji fabric is a kind of knitted fabric (knitted woven fabric) made of 100% polyester.

[0059] The cotton layer, the first cotton cutting plate and the second cotton cutting plate are all cotton materials, such as sponge or fiber cotton; the sponge has a common porous structure; the fiber cotton is made of a plurality of soft fibers which are stacked (stacking is a process, just like laying a thick cotton wadding, layer by layer, the fibers are laid to form a certain thickness); the fibers are separated from each other, so there is space for ventilation; the fiber cotton is a special superfine polyester chemical fiber material; the so-called four-hole cotton, seven-hole cotton, nine-hole cotton and ten-hole cotton on the market are all this kind of fiber cotton.

[0060] In step S3, the temperature for hot pressing and shaping is 180-200℃, and the optimal temperature is 180-190℃; the time for hot pressing and shaping is 180-200s.

[0061] In step S3, the forming die comprises a punch, a die and a baffle, the punch and the die are matched, the die has a groove corresponding to the shoulder pad, the punch faces the groove, and the baffle is located on the same side of the punch and the die.

[0062] The shoulder pad manufacturing device further comprises a heating unit, which is used to heat the die 2 and the punch 1; when the cutting piece is placed between the die 2 and the punch 1 for die forming, the die 2 and the punch 1 need to be heated to a certain temperature, such as 180-200℃. The heating unit is a conventional heating structure known to those skilled in the art, and its structure will not be described in detail.

[0063] In step S3, when the cutting piece is processed using the forming die: the folded surface formed by folding the first cotton cutting plate and the second cotton cutting plate corresponds to the baffle; the upper layer and the lower layer formed after folding correspond to the groove of the die and the convex surface (upper surface) of the punch respectively; the groove is pressed down until it abuts against the cutting piece; after hot pressing and shaping for a period of time, the shaped cutting piece is taken out; then the edges of the shaped cutting piece are cut off using a cutter die, or the positioning frame of the shoulder pad is punched off using an ultrasonic punching mechanism to obtain a shoulder pad product with the required size.

[0064] The specific structure of the forming die is as follows:

[0065] The punch 1 is a center-symmetrical structure, the punch 1 is symmetrical along the center line (the front-rear direction is as shown by the arrow in the figure, and the left-right direction is as shown by the arrow in the figure); the punch 1 has a convex surface on the upper side and a flat surface on the lower side; the convex surface on the upper side of the punch 1 is a convex surface corresponding to the shoulder pad; the flat surface on the lower side of the punch 1 is a flat surface corresponding to the baffle. Figure 4The center line extends along the left-right direction (e.g. Figure 4 The center line extends along the left-right direction (e.g.

[0066] The punch 1 has a left side surface 12, an upper side surface 11, a right side surface 13, and a lower side surface 14. The upper side surface 11 is above the lower side surface 14. The left side surface 12 and the right side surface 13 of the punch 1 are connected to each other and are connected between the upper side surface 11 and the lower side surface 14. The right side surface 13 is connected to the upper side surface 11, the lower side surface 14, and the left side surface 12. The lower side surface 14 is a horizontal surface.

[0067] The upper side surface 11 of the punch 1 is a convex arc shape that protrudes upward. The upper side surface 11 of the punch 1 has two sides, which are a first arc side 111 and a second arc side 112. The first arc side 111 and the second arc side 112 are both similar to a half-elliptical shape. The first arc side 111 protrudes upward, and the second arc side 112 protrudes to the right side. Figure 4 The upper side surface 11 of the punch 1 has a left end portion (e.g. Figure 4 The right end portion (e.g. Figure 3 The upper side surface 11 of the punch 1 extends upward and away from the left side surface 12 from the left end portion to the right end portion. That is, the left end portion and the right end portion of the upper side surface 11 of the punch 1 form an angle (e.g. Figure 3 The angle is greater than 0° and less than 30°.

[0068] The left side surface 12 of the punch 1 extends along a vertical direction, that is, the left side surface 12 is parallel to a vertical surface. The left side surface 12 has an upper arc side and a lower side. The upper arc side of the left side surface 12 is connected to (i.e., shares a common edge with) the first arc side 111 of the upper side surface 11. The arc side protrudes upward. Alternatively, the left side surface 12 has an upper arc side, a lower side, a front side, and a rear side. The upper arc side is above the lower side. The front side and the rear side are opposite to each other and connect the upper arc side and the lower side. The upper arc side of the left side surface 12 is connected to (i.e., shares a common edge with) the first arc side 111 of the upper side surface 11.

[0069] The right side surface 13 of the punch 1 is a non-closed ring surface (i.e., the ring surface is not closed). The right side surface 13 of the punch 1 has an upper arc side, a lower arc side, a front side, and a rear side. The front side and the rear side of the right side surface 13 are connected to the front side and the rear side of the left side surface 12, respectively. The upper arc side of the right side surface 13 is connected to (i.e., shares a common edge with) the second arc side 112 of the upper side surface 11. The lower arc side of the right side surface 13 is connected to the lower side surface 14.

[0070] The concave die 2 is movable in the vertical direction, and is matched with the convex die 1, and the concave die 2 is provided with a groove matched with the upper side of the convex die 1.

[0071] The concave die 2 has an upper side 21, a lower side 24, a left side 22 and a right side 23, the upper side 21 is above the lower side 24, the left side 22 and the right side 23 of the concave die 2 are connected and connected between the upper side 21 and the lower side 24, the right side 23 of the concave die 2 is connected with the upper side 21, the lower side 24 and the left side 22, and the groove is provided on the lower side 24 of the concave die 2.

[0072] The groove (i.e. the lower side 24) of the concave die 2 is provided with a left end (as indicated by e in Figure 7 ) and a right end (as indicated by f in Figure 7 ) along the center line left and right, the left end is close to the left side 22, the right end is away from the left side 22, i.e. close to the end of the right side 23 away from the left side 22, the lower side 24 extends upwardly and away from the left side 22 from the left end to the right end, i.e. the left end and the right end of the lower side 24 of the concave die 2 (see Figure 3 ) has an included angle (see Figure 3 indicated by a) with the horizontal plane, the included angle is greater than 0° and less than 30°.

[0073] The lower side 24 of the concave die 2 has two sides, which are a first arc-shaped side 241 and a second arc-shaped side 242, the arc shapes of the first arc-shaped side 241 and the second arc-shaped side 242 are similar to semicircle or ellipse, the arc shape of the first arc-shaped side 241 protrudes upwardly, and the arc shape of the second arc-shaped side 242 protrudes to the right side. The first arc-shaped side 241 of the lower side 24 of the concave die 2 is above the first arc-shaped side of the upper side 11 of the convex die 1, the arc degree of the first arc-shaped side 241 of the lower side 24 of the concave die 2 is greater than the arc degree of the first arc-shaped side 111 of the upper side 11 of the convex die 1, and the second arc-shaped side 242 of the lower side 24 of the concave die 2 is above the second arc-shaped side 112 of the upper side 11 of the convex die 1.

[0074] The left side 22 of the concave die 2 extends in the vertical direction, i.e. the left side 22 is parallel to the vertical plane, and the left side 22 of the concave die 2 and the left side 12 of the convex die 1 are located on the same vertical plane. The left side 22 of the concave die 2 has a lower arc-shaped side, an upper side, a front side and a rear side, the lower arc-shaped side is above the upper side, the front side and the rear side are opposite to each other and connect the lower arc-shaped side and the upper side, the lower arc-shaped side of the left side 22 is connected with (common side) the first arc-shaped side 241 of the lower side 24, and the arc shapes of the lower arc-shaped side of the left side 22 and the first arc-shaped side 241 of the lower side 24 both protrude upwardly.

[0075] The right side surface 23 of the female die 2 is a non-closed ring surface (the ring surface is not closed), and has an upper arc side, a lower arc side, a front side, and a rear side. The front side and the rear side of the right side surface 23 are connected with (share a common side with) the front side and the rear side of the left side surface 22, respectively. The upper arc side of the right side surface 23 is connected with (shares a common side with) the arc side of the lower side surface 24. The lower arc side of the right side surface 23 is connected with (shares a common side with) the second arc side of the lower side surface 24.

[0076] In the direction perpendicular to the center line, the upper side surface 11 of the male die 1 has a first end (indicated as c in Figure 4 ) and a second end (indicated as d in Figure 4 ). The lower side surface of the female die 2 has a first end (indicated as h in Figure 7 ) and a second end (indicated as m in Figure 7 ). In the direction perpendicular to the center line (such as the Y-axis direction), the distance between the upper side surface 11 of the male die 1 and the groove of the female die 2 gradually increases from the first end to the middle, and then gradually decreases from the middle to the second end. In the direction of the center line (such as the X-axis direction), the distance between the upper side surface 11 of the male die 1 and the lower side surface 24 of the female die 2 gradually decreases from the left end to the right end (the left end of the upper side surface of the male die and the left end of the lower side surface 24 of the female die are located on the same side, and the right end of the upper side surface 11 of the male die and the right end of the lower side surface 24 of the female die are located on the same side).

[0077] When the female die 2 is lowered to abut against the male die without placing the cutting piece, the right end of the lower side surface of the female die 2 abuts against the right end of the upper side surface of the male die 1, and there is a gap (indicated as H in Figure 3 ) between the left end of the lower side surface of the female die 2 and the left end of the upper side surface of the male die 1. In the direction perpendicular to the center line (such as the Y-axis direction), the width of the gap gradually increases from the first end to the middle, and then gradually decreases from the middle to the second end. In the direction of the center line (such as the X-axis direction), the distance between the upper side surface 11 of the male die 1 and the lower side surface 24 of the female die 2 gradually decreases from the left end to the right end (the left end of the upper side surface of the male die and the left end of the lower side surface 24 of the female die are located on the same side, and the right end of the upper side surface 11 of the male die and the right end of the lower side surface 24 of the female die are located on the same side).

[0078] As shown in Figure 3 , the angle between the line connecting the left end and the right end of the upper side surface 11 of the male die 1 and the horizontal plane (see the angle indicated as β in Figure 3 ) is greater than or equal to the angle between the line connecting the left end and the right end of the lower side surface 24 of the female die 2 and the horizontal plane (see the angle indicated as α in Figure 3 ). The angle between the line connecting the left end and the right end of the upper side surface 11 of the male die 1 and the horizontal plane (see the angle indicated as β in Figure 3 ) is greater than the angle between the line connecting the left end and the right end of the lower side surface 24 of the female die 2 and the horizontal plane (see the angle indicated as α inFigure 3 The shoulder pad is most optimal, and the thickness of the shoulder pad formed by the molding gradually decreases from one end to the other end.

[0079] In some embodiments, the angle between the left end and the right end of the upper side 11 of the male die 1 and the horizontal plane is greater than 0° and less than 30°, such as 15°, and the angle between the left end and the right end of the lower side 24 of the female die 2 and the horizontal plane is greater than 0° and less than 30°, such as 5°.

[0080] The baffle 3 is located on the same side of the male die 1 and the female die 2, and the side surface of the baffle 3 facing the male die 1 and the female die 2 is a vertical surface. The side surface of the baffle 3 abuts against the left side surface of the male die 1, that is, the baffle 3 can be fixedly connected with the male die 1, such as welding.

[0081] Further, the upper positioning inclined surface 25 is arranged on the female die 2 and located on the outer edge of the groove. The lower positioning inclined surface 15 is arranged on the male die 1 corresponding to the upper positioning inclined surface 25 and arranged along the second arc-shaped side edge of the upper side 11 of the male die 1. The lower positioning inclined surface 15 and the upper positioning inclined surface 25 cooperate to form a positioning frame on the cutting piece. When the cutting piece is pressed, the positioning frame can be formed on the arc-shaped edge of the cutting piece. The positioning frame can be punched and removed in the final forming. The positioning frame prevents the cutting piece from being offset when the cutting piece is punched by a knife die, and facilitates accurate punching operation.

[0082] Further, the outer edge of the lower positioning inclined surface 15 of the male die 1 is provided with an extension surface 16. The extension surface 16 is adjacent to the lower positioning inclined surface 15 and is farther away from the left side surface of the male die 1 than the lower positioning inclined surface 15. When the lower positioning inclined surface 15 of the male die 1 and the upper positioning inclined surface 25 of the female die 2 cooperate, the extension surface 16 is exposed. The extension surface 16 facilitates mold modification and adjustment of the male die 1 according to different sizes of shoulder pads.

[0083] The lower side edge of the male die 1 is provided with one or more positioning grooves, and the upper side edge of the female die 2 is provided with a plurality of positioning columns. The positioning grooves and the positioning columns correspond to each other, which can ensure that the female die 2 and the male die 1 are aligned when they cooperate, preventing deviation.

[0084] In the use state, that is, the cutting piece in step S3 is placed on the upper side 11 of the male die 1, one side of the cutting piece is in abutment with the baffle 3, the female die 2 is moved downward until the recess is in abutment with the cutting piece, the baffle 3 can be in abutment with the left side of the female die 2, and the cutting piece can be better shaped on one side. The side of the cutting piece in abutment with the baffle 3 forms a plane, and the side of the cutting piece in abutment with the baffle 3 does not have a suture line. The cutting piece is a folded material, and after folding, three planes are formed, which are a folding plane, an upper layer plane and a lower layer plane. During molding, the folding plane is aligned with the baffle 3, and the fabric is tightly attached to the baffle. After molding, the surface of the shoulder pad corresponding to the baffle 3 is a plane, which is beneficial to forming. Through the plane of the baffle 3 and the cooperation of the male die 1 and the female die 2, the shoulder pad after molding can have a certain thickness, and the thickness gradually decreases from the center shoulder point to both sides, so that the product after molding is not leaking and has no trace and is smooth. After completion, the excess material on the shoulder tongue side is trimmed off.

[0085] The cutting piece is placed in the mold for molding, the cutting piece is simple and accurate to place and position, and after hot pressing molding is completed, the side in abutment with the baffle does not need to be treated, and there is no welding seam to save time. The shoulder pad has no trace and a smooth surface. Both experienced and inexperienced operators can accurately and quickly operate, and the operation is simple.

[0086] The ultrasonic cutting mechanism includes an ultrasonic cutting head 6 for cutting the arc-shaped edge of the shoulder pad. The edge of the shoulder pad cut by the ultrasonic cutting head 6 has no suture line, and the appearance is clean without a trace, which can prevent the leakage of cotton. Only a welding trace is formed at the connection between one side of the upper surface 71 of the shoulder pad 7 body and one side of the lower surface 72 of the body, and the cotton will not leak out. The closed corner line is formed at the connection between the side surface 73 of the body and the upper surface 71 and the lower surface 72, that is, there is no welding trace.

[0087] The ultrasonic cutting head 6 can cut the positioning frame on the cutting piece without cutting the shoulder pad part required.

[0088] Referring to Figure 17 , the ultrasonic cutting head 6 is in a cylindrical shape, the axis of the ultrasonic cutting head 6 is horizontally arranged, and the ultrasonic cutting head 6 can rotate around its axis. When cutting, the shaped cutting piece can be placed below the ultrasonic cutting head 6. During the cutting operation, the operator rotates the shaped cutting piece, and the ultrasonic cutting head 6 can cut the edge of the cutting piece.

[0089] The shapes of the female die 2 and the male die 1 are processed according to the shape of the human shoulder, and the shape of the shoulder pad molded by the female die 2 and the male die 1 conforms to the human body in three dimensions. The shape of the cutting piece prepared by the molding mold of the example is shown in Figures 10-16 .

[0090] The shoulder pad 7 includes a body symmetrically arranged at the center, and the center line direction is as shown in Figure 10The middle arrow points to shoulder pad 7 along the center line, front and back (front and back direction refers to...). Figure 10 The components are arranged symmetrically (in the direction perpendicular to the center arrow). The main body is made of a flexible material, meaning it is elastic.

[0091] The body has three surfaces: an upper surface 71, a lower surface 72, and a side surface 73 (the side closest to the baffle 3). The upper surface 71 is located above the lower surface 72, and the side surface 73 connects the upper surface 71 and the lower surface 72. The upper surface 71, the lower surface 72, and the side surface 73 each have two sides. One side of the upper surface 71 is connected to one side of the lower surface 72 to form an arc. The other side of the upper surface 71 shares an edge with one side of the side surface 73, and the other side of the lower surface 72 shares an edge with the other side of the side surface 73. The side surface 73 is arc-shaped.

[0092] The body is flexible and will not exert force when placed on a workbench. The edge of the lower surface 72 is in contact with the horizontal surface of the workbench, and a gap is maintained between the middle of the lower surface 72 and the horizontal surface of the workbench. At this time, both sides (upper side 731 and lower side 732) of the side surface 73 are arc-shaped, and the side surface 73 is an inclined surface. In the direction of the center line, the side surface 73 of the body extends upwards from its bottom (near the lower surface 72) to its top (near the upper surface 71) towards the upper surface 71. The side surface 73 maintains an angle with the vertical plane, which is less than or equal to 30°. That is, the angle between the side surface 73 and the horizontal plane is greater than 0 and less than or equal to 60°. In other words, in any state, the side surface 73 maintains an angle with the center line, which is greater than 90° and less than 180°.

[0093] If force is applied to the shoulder pad 7 so that the lower surface 72 is completely in contact with the horizontal surface of the workbench, the two sides of the side surface 73 are the upper and lower sides respectively. The upper and lower sides of the side surface 73 are not on the same vertical plane, and the upper and lower sides of the side surface 73 are curved (arc-shaped).

[0094] The main body has a left shoulder end along the center line (see...) Figure 10 (as indicated by a) and the right shoulder end (see Figure 10 (as indicated by b) The left shoulder end is located at the junction of the side surface 73 and the upper surface 71, and the right shoulder end is located at the junction of the upper surface 71 and the lower surface 72. The left and right shoulder ends are for directional indication. The thickness of the shoulder pad 7 gradually decreases from the left shoulder end to the right shoulder end, that is, the thickness of the edge where the upper surface 71 and the lower surface 72 share the same edge is less than the thickness of the middle part of the shoulder pad 7 (see [reference]). Figure 12The middle part of the shoulder pad 7 has the maximum thickness, and the middle part of the shoulder pad 7 refers to the part close to the side surface 73 in the direction of the center line. It can also be said that the body has a center shoulder point at the side surface 73 along the center line, has a rear shoulder point at the common edge of the upper surface 71 and the lower surface 72, and the body thickness gradually decreases in the direction of the common edge of the upper surface 71 and the lower surface 72 from the center shoulder point, that is, in the direction perpendicular to the center line, the thickness of the shoulder pad 7 gradually increases from the edge of the body to the middle part of the body.

[0095] In the direction perpendicular to the center line, the side surface 73 of the body has a relatively far first end (see Figure 10 indicated by c) and a second end (see Figure 10 indicated by d), the width of the side surface 73 of the body (that is, the thickness of the shoulder pad 7) first gradually increases from the first end to the middle part, and then gradually decreases from the middle part to the second end, and the width of the middle part of the side surface 73 is indicated by L. Figure 12

[0096] When the shoulder pad 7 is applied to the garment and worn on the user, the shoulder part will be inclined upward to the head, and the shoulder part of different wearers is slightly different. The side surface 73 of the shoulder pad 7 is parallel to the vertical plane or the included angle between the side surface 73 of the shoulder pad 7 and the vertical plane is less than or equal to 30°.

[0097] The inclined surface of the shoulder pad of the example conforms to the angle of the human shoulder part, is more fitted to the human body, and is more comfortable to wear. The shoulder pad can achieve a smooth and clean effect and achieve the effect of conforming to the natural, smooth, flat and smooth human shoulder part.

[0098] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.​

Claims

1. A method of preparing a shoulder pad, characterized by, The method comprises the following steps: S1, preparing a composite fabric, a first cutting cotton plate and a second cutting cotton plate, wherein the composite fabric comprises a fabric layer and a cotton layer which are bonded together; S2, bonding the first cutting cotton plate and the second cutting cotton plate between the fabric layer and the cotton layer, placing the first cutting cotton plate and the second cutting cotton plate side by side, maintaining a gap between the first cutting cotton plate and the second cutting cotton plate, folding the composite fabric along the gap to place the first cutting cotton plate and the second cutting cotton plate oppositely and bond them together to obtain a cutting piece; S3, transferring the folded cutting piece to a forming die to perform hot pressing and shaping; S4, punching the edge of the cutting piece after shaping to obtain a shoulder pad; In step S1, the first cutting cotton plate and the second cutting cotton plate each comprise an upper surface, a lower surface, a vertical surface and an annular surface, the upper surface and the lower surface are oppositely arranged, the vertical surface and the annular surface are connected, and the vertical surface and the annular surface are connected between the upper surface and the lower surface; In step S1, the thickness of the first cutting cotton plate and the second cutting cotton plate gradually decreases from the vertical surface to the end of the annular surface away from the vertical surface; In step S2, the vertical surfaces of the first cutting cotton plate and the second cutting cotton plate are oppositely arranged and a gap is maintained therebetween, and the composite fabric is folded along the gap to oppositely arrange the upper surfaces of the first cutting cotton plate and the second cutting cotton plate and bond them together to obtain a cutting piece; In step S3, the forming die comprises a punch, a die and a baffle, the baffle is located on the same side of the punch and the die, the punch has a center-symmetrical structure, the upper side of the punch has a convex arc shape, the convex arc shape protrudes upward, the upper side of the punch is provided with a left end portion and a right end portion along a center line, the left end portion is close to the baffle, the right end portion is away from the baffle, and the upper side of the punch extends upward and inclines away from the baffle from the left end portion to the right end portion; The die is provided with a groove matched with the punch, the groove is provided with a left end portion and a right end portion along the center line, and the groove extends upward and inclines away from the baffle from the left end portion to the right end portion; The included angle between the line connecting the left end portion and the right end portion of the upper side of the punch and the horizontal plane is greater than or equal to the included angle between the line connecting the left end portion and the right end portion of the groove of the die and the horizontal plane; In step S3, the cutting piece is folded with the bonded material, and three surfaces are formed after folding, i.e., a folded surface, an upper layer and a lower layer, and the folded surface is aligned with the baffle during molding.

2. The method of claim 1, wherein, In step S3, the temperature for hot pressing and shaping is 180-200°C, and the time for hot pressing and shaping is 180-200s.

3. The method of claim 1, wherein the shoulder pad is prepared by the steps of: The die has a center-symmetrical structure, the left side of the die is located on the same vertical plane as the left side of the punch, and the baffle can abut against the left side of the die and the left side of the punch in the use state.

4. The method of claim 1, wherein the shoulder pad is prepared by the steps of: In step S2, the first and second cutting cotton boards are folded to form an upper layer, a folding surface and a lower layer, the upper layer is above the lower layer, and the folding surface connects the upper layer and the lower layer; in step S3, the folding surface of the first and second cutting cotton boards corresponds to the baffle, and the upper layer and the lower layer correspond to the groove of the concave die and the convex die respectively.

5. The method of claim 1, wherein, In step S4, the edges of the cut piece after shaping are punched by an ultrasonic punching mechanism to obtain the shoulder pad.

6. The method of claim 1, wherein, In step S1, the composite fabric includes a fabric layer and a cotton layer bonded together, the fabric layer is selected from a jacquard woven fabric, a good cloth or a bird eye cloth; the cotton layer is selected from a sponge or a fiber cotton; the first and second cutting cotton boards are both cotton materials.

7. A shoulder pad prepared by the method of any one of claims 1-6.

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