Bra cup forming mold, bra cup and preparation method of bra cup

Abstract

The invention discloses a bra cup forming mold, a bra cup and a preparation method of the bra cup. The preparation method comprises the following steps: obtaining a planar breast paste, a surface layer cutting piece and an inner layer cutting piece with designed shapes; the plane breast paste is attached to the inner layer cutting piece; the face layer cutting piece and the face, attached to the plane breast paste, of the inner layer cutting piece are combined in a covering mode, and a standby layer is obtained; the standby layer is placed on a first pressing plate of a forming mold, and the surface layer cutting piece in the standby layer is close to the first pressing plate; the distance between a first pressing plate and a second pressing plate of the forming die is adjusted, so that the face, close to a female die of the forming die, of the standby layer is not attached to the female die during die pressing; performing compression molding to obtain the bra cups; during mold pressing, the mold pressing temperature of the male mold of the forming mold is higher than that of the female mold. According to the preparation method of the bra cup, the mold pressing frequency in the manufacturing process of the bra cup can be effectively reduced, it is guaranteed that all the parts of the standby layer are evenly heated so that forming can be consistent, the technology is simple, and the production efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of bra cup preparation, and in particular to a bra cup forming mold, a bra cup and a preparation method thereof. Background Art

[0002] Traditional underwear is mainly sewn, pursuing morphological effects such as extrusion, support and bulge. With the progress of the times, comfortable, simple and generous seamless underwear is becoming more and more the mainstream trend. Underwear no longer uses the previous complicated fancy designs and layered craftsmanship to achieve beauty.

[0003] At present, most seamless bras use insert-type mold cups to prevent bumps. The structure of the insert-type mold cup is almost the same as that of the traditional mold cup. The insert is wide and thick, has poor air permeability, and can also shift in the bra. In addition, when making the existing insert-type mold cup, it is necessary to first open a small hole in the inner layer of the bra fabric or leave a part of the bonding area between the two layers of fabric unbonded, mold the nipple, fix the nipple film, mold the pits in the breast area of ​​the bra, mark the nipple position, insert the nipple cup, pre-fix the nipple, fix it with reverse pressure, and finally fix the cup mouth of the nipple. The above steps are numerous, the operation is cumbersome, the molding time is long, and the molding times are many, which increases the processing cost of the bra product and reduces the production efficiency. Summary of the invention

[0004] In view of this, in order to overcome the defects of the prior art, an object of the present invention is to provide a bra cup forming mold, a bra cup and a preparation method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An object of the present invention is to provide a method for preparing a bra cup, comprising the following steps:

[0007] Obtaining flat nipple covers, surface layer pieces and lining layer pieces of designed shapes;

[0008] Laminating the flat breast cover with the inner layer cut piece;

[0009] Laminating the surface layer piece and the inner layer piece with the side of the flat breast cover attached thereto to obtain a spare layer;

[0010] Placing the spare layer on the first pressing plate of the forming mold and placing the surface layer pieces in the spare layer close to the first pressing plate; adjusting the distance between the first pressing plate and the second pressing plate of the forming mold so that the side of the spare layer close to the concave mold of the forming mold does not fit the concave mold during molding;

[0011] The bra cup is obtained by compression molding; during compression molding, the compression temperature of the male mold of the molding mold is higher than the compression temperature of the female mold.

[0012] The present invention laminates the prepared flat breast cover with the inner layer pieces, and then laminates the whole with the surface layer pieces. When the breast part of the bra cup is pressed with a concave pit, the breast cover is molded together and the concave mold is ensured not to contact the spare layer during the molding. This can effectively reduce the number of molding times in the bra cup manufacturing process and the alignment time during multiple molding operations, effectively reduce the product processing cost, and ensure that each part of the spare layer is evenly heated to achieve consistent molding. The preparation process is simple, which can improve production efficiency, and can also ensure that the breast cover does not move, effectively playing the role of preventing convex spots.

[0013] According to a preferred implementation aspect of the present invention, during molding, the distance between the side of the die close to the punch and the side of the spare layer close to the die is 3 to 10 mm, preferably 5 to 10 mm. This arrangement can ensure that the die can evenly bake the fabric of the spare layer at high temperature without contacting the fabric of the spare layer, thereby ensuring that each part of the spare layer is evenly heated and consistent molding is ensured.

[0014] According to a preferred embodiment of the present invention, when the flat bra cover is attached to the inner layer piece, the center of the flat bra cover coincides with the BP point of the inner layer piece, thereby ensuring that the bra cover is accurately aligned and effectively preventing convex spots.

[0015] According to a preferred embodiment of the present invention, the surface layer pieces and the inner layer pieces are both made of nylon-spandex fabrics. Both the inner layer pieces and the surface layer pieces must withstand the temperature during the molding of the concave and convex molds to avoid deformation of the fabrics.

[0016] According to a preferred embodiment of the present invention, the difference between the molding temperature of the male mold and the female mold during molding is 40-50° C. This ensures that the side of the spare layer close to the female mold will not be smaller than the side of the spare layer close to the male mold due to not contacting the female mold.

[0017] According to a preferred embodiment of the present invention, the molding temperature of the male mold is 200-250°C, and the molding temperature of the female mold is 150-200°C.

[0018] According to a preferred implementation aspect of the present invention, the area of ​​the flat breast cover is smaller than the area of ​​the inner layer piece, and the area of ​​the inner layer piece is equal to the area of ​​the surface layer piece.

[0019] Another object of the present invention is to provide a bra cup prepared by the preparation method as described above, wherein the bra cup can be directly combined with side panels, shoulder straps and hooks to be made into a bra garment.

[0020] Another object of the present invention is to provide a bra cup forming mold used in the preparation method as described above, comprising a first pressing plate, a second pressing plate, and a concave mold portion and a convex mold portion arranged opposite to each other, wherein the concave mold portion comprises two independent and symmetrically arranged concave molds, each of which comprises a receiving groove recessed downward from its top surface; the convex mold portion comprises two independent and symmetrically arranged convex molds, each of which comprises a base and a spherical body fixedly connected to the base, and the spherical body is arranged toward the receiving groove.

[0021] According to a preferred embodiment of the present invention, the accommodating groove has a first molding surface, which matches the outer surface of the bra cup; the spherical body has a second molding surface, which matches the inner surface of the bra cup; the first pressing plate is parallel to the second pressing plate, the height of the base is greater than the sum of the heights of the first pressing plate and the second pressing plate, the first pressing plate is provided with a first through hole running through its thickness direction, the second pressing plate is provided with a second through hole running through its thickness direction, the first through hole and the second through hole are both used for the base to pass through, and the center of the first through hole and the center of the second through hole are located in the same vertical direction. The shapes of the concave mold and the convex mold of the molding mold of the present invention are consistent with the shape of the designed bra cup to ensure the molding effect.

[0022] Due to the adoption of the above technical scheme, compared with the prior art, the advantages of the present invention are as follows: a bra cup forming mold, a bra cup and a preparation method thereof of the present invention, by laminating a prepared flat breast cover with an inner layer piece, and then laminating the whole with the surface layer piece, by molding together when pressing a pit on the breast part of the bra cup and ensuring that the concave mold does not contact the spare layer during molding, can effectively reduce the number of molding times in the bra cup manufacturing process, and ensure that each part of the spare layer is evenly heated to achieve consistent molding, the preparation process is simple, can improve production efficiency, and can also ensure that the breast cover does not run, effectively playing a role in preventing bulges. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 An exploded view of a molding die in a preferred embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the molding die when molding the spare layer in the preferred embodiment of the present invention;

[0026] Wherein, the accompanying drawings are marked as follows:

[0027] Concave mold -1, accommodating groove -11, punch -2, base -21, spherical body -22, first pressing plate -3, first through hole -31, second pressing plate -4, second through hole -41, inner layer piece -5, flat breast cover -6, surface layer piece -7. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] Embodiment 1 A molding die for a bra cup

[0030] like Figure 1 As shown, this embodiment provides a molding die for a bra cup, comprising a first pressing plate 3, a second pressing plate 4, and a concave mold portion and a convex mold portion arranged opposite to each other. The first pressing plate 3 is parallel to the second pressing plate 4. In this embodiment, the first pressing plate 3 and the second pressing plate 4 have the same size. The first pressing plate 3 is provided with a first through hole 31 penetrating through the thickness direction thereof, and the second pressing plate 4 is provided with a second through hole 41 penetrating through the thickness direction thereof. The center of the first through hole 31 and the center of the second through hole 41 are located in the same vertical direction.

[0031] Furthermore, the male mold portion is located above the female mold portion, and the female mold portion includes two independent and symmetrically arranged female molds 1, each of which includes a receiving groove 11 recessed downward from its top surface, and the receiving groove 11 has a first molding surface, and the first molding surface matches the outer surface of the bra cup.

[0032] The male mold part includes two independent and symmetrically arranged male molds 2, each of which includes a base 21 and a spherical body 22 fixedly connected to the base 21, and the spherical body 22 is arranged toward the receiving groove 11 of the female mold 1; the spherical body 22 has a second molding surface, and the second molding surface matches the inner surface of the bra cup. The height of the base 21 of the male mold 2 is greater than the sum of the heights of the first pressing plate 3 and the second pressing plate 4. During molding, the base 21 is located above the spherical body 22, the first pressing plate 3 is located above the second pressing plate 4, and there is a gap between the first pressing plate 3 and the second pressing plate 4. The first through hole 31 on the first pressing plate 3 and the second through hole 41 on the second pressing plate 4 are both used for the base 21 to pass through.

[0033] Embodiment 2 A method for preparing a bra cup

[0034] This embodiment provides a method for preparing a bra cup, comprising the following steps:

[0035] Step 1: Design the forming mold described in Example 1, and install the forming mold on a face cloth forming machine.

[0036] Step 2: According to the specified model and thickness, cut or punch out the flat breast cover 6, the surface layer piece 7 and the inner layer piece 5 of corresponding shapes.

[0037] The material of the flat nipple cover 6 in this embodiment is sponge, and the materials of the surface layer piece 7 and the inner layer piece 5 are both nylon-spandex fabrics, wherein the nylon content in the nylon-spandex fabrics is 60% to 95%, and the spandex content is 5% to 40%.

[0038] Step 3: Use an electric iron to stick a hot-melt adhesive film on the flat nipple patch 6 in step 2. The area of ​​the adhesive film should be less than or equal to the area of ​​the flat nipple patch 6. Stick the flat nipple patch 6 with the adhesive film on the inner layer piece 5 to ensure that the center of the flat nipple patch 6 coincides with the BP point of the inner layer piece 5, and then iron it with an electric iron for pre-fixation.

[0039] Step 4: Place the surface layer piece 7 on the side of the inner layer piece 5 with the flat breast cover 6 attached thereto, and overlap the inner layer piece 5 with the pre-fixed flat breast cover 6 and the surface layer piece 7 by sewing or gluing to obtain a spare layer.

[0040] Step 5: Adjust the height of the die 1 and the punch 2 as well as the distance between them, and adjust the height of the first pressing plate 3 and the second pressing plate 4 as well as the distance between them, so that during molding, the side of the spare layer close to the die 1 does not fit into the die 1, and set the molding temperature, molding time and other process parameters according to the process instructions (both the temperature and time parameters need to be set according to the temperature resistance and the rebound rate after stretching of the material).

[0041] In this embodiment, the molding temperature of the male mold 2 is set to 200-250°C, preferably 185°C; the molding temperature of the female mold 1 is set to 150-200°C, preferably 235°C, and the molding time is 100-180s, preferably 130s.

[0042] Step 6: Place the spare layer on the first pressing plate 3 of the molding mold and bring the surface layer piece 7 in the spare layer close to the first pressing plate 3, press the start button for molding to obtain the bra cup. During molding, the distance between the side of the die 1 close to the punch 2 and the side of the spare layer close to the die 1 is 3 to 10 mm to ensure that the die 1 can evenly bake the fabric of the spare layer at high temperature, so that each part of the spare layer is evenly heated to ensure consistent molding.

[0043] Step 7: Take out the molded bra cup and place it on the inspection plaster mold to check whether the height and size after molding are appropriate (depending on the inspection results, the parameters can be adjusted according to different fabrics until they meet the inspection standards).

[0044] This embodiment also provides a bra cup manufactured according to the above-mentioned method for manufacturing a bra cup, which can be directly combined with side panels, shoulder straps, and hooks to be manufactured into a ready-made bra garment.

[0045] The preparation method of the bra cup of the present invention can effectively reduce the number of molding times in the bra cup manufacturing process and the positioning time during multiple molding operations, effectively reduce the product processing cost, and ensure that each part of the spare layer is evenly heated to achieve consistent molding. The preparation process is simple and can improve production efficiency. At the same time, it can also ensure that the breast cover will not move, and effectively play a role in preventing bulges.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a bra cup, characterized in that: The steps include: Obtaining flat nipple covers, surface layer pieces and lining layer pieces of designed shapes; Laminating the flat breast cover with the inner layer cut piece; Laminating the surface layer piece and the inner layer piece with the side having the flat breast cover attached thereto to obtain a spare layer; Placing the spare layer on the first pressing plate of the forming mold and placing the surface layer pieces in the spare layer close to the first pressing plate; adjusting the distance between the first pressing plate and the second pressing plate of the forming mold so that the side of the spare layer close to the concave mold of the forming mold does not fit the concave mold during molding; The bra cup is obtained by compression molding; during compression molding, the compression temperature of the male mold of the molding mold is higher than the compression temperature of the female mold.

2. The preparation method according to claim 1, characterized in that: During molding, the distance between the side of the concave mold close to the convex mold and the side of the spare layer close to the concave mold is 3 to 10 mm.

3. The preparation method according to claim 1, characterized in that: When the flat breast cover is attached to the inner layer piece, the center of the flat breast cover coincides with the BP point of the inner layer piece.

4. The preparation method according to claim 1, characterized in that: The surface layer pieces and the inner layer pieces are both made of nylon-spandex fabrics.

5. The preparation method according to claim 1, characterized in that: The difference between the molding temperature of the male mold and the molding temperature of the female mold during molding is 40 to 50°C.

6. The preparation method according to claim 5, characterized in that: The molding temperature of the male mold is 200-250°C, and the molding temperature of the female mold is 150-200°C.

7. The preparation method according to claim 1, characterized in that: The area of ​​the flat breast cover is smaller than the area of ​​the inner layer piece, and the area of ​​the inner layer piece is equal to the area of ​​the surface layer piece.

8. A bra cup prepared by the preparation method according to any one of claims 1 to 7.

9. A bra cup forming mold used in the preparation method according to any one of claims 1 to 7, characterized in that: It includes a first pressing plate, a second pressing plate, and a concave mold part and a convex mold part which are arranged opposite to each other. The concave mold part includes two independent and symmetrical concave molds, each of which includes a receiving groove which is recessed downward from its top surface; the convex mold part includes two independent and symmetrically arranged convex molds, each of which includes a base and a spherical body fixedly connected to the base, and the spherical body is arranged toward the receiving groove.

10. The bra cup forming mold according to claim 9, characterized in that: The accommodating groove has a first molding surface, which matches the outer surface of the bra cup; the spherical body has a second molding surface, which matches the inner surface of the bra cup; the first pressing plate is parallel to the second pressing plate, the height of the base is greater than the sum of the heights of the first pressing plate and the second pressing plate, the first pressing plate is provided with a first through hole that runs through its thickness direction, and the second pressing plate is provided with a second through hole that runs through its thickness direction, the first through hole and the second through hole are both used for the base to pass through, and the center of the first through hole and the center of the second through hole are located in the same vertical direction.

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