Heating wire support mold for hair straightener

Abstract

The utility model discloses a heating wire bracket mold for a hair straightener. The heating wire bracket mold comprises a front mold assembly, a rear mold assembly, a first side core-pulling mechanism and a second side core-pulling mechanism, the front die assembly comprises a front die plate, and a support female die is arranged on the front die plate. The rear die assembly comprises a rear die plate, and a support male die is arranged on the rear die plate. The first side core-pulling mechanism comprises a first side mold core and a first inclined guide column, the first side mold core is arranged on the rear mold plate in a sliding manner, a first inclined guide hole is formed in the first side mold core, the first inclined guide column is arranged on the front mold plate, and the first inclined guide column extends into the first inclined guide hole; the second side core-pulling mechanism comprises a second side mold core and a second inclined guide pillar, the second side mold core is arranged on the rear mold plate in a sliding manner, a second inclined guide hole is formed in the second side mold core, the second inclined guide pillar is arranged on the front mold plate, and the second inclined guide pillar extends into the second inclined guide hole.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a heating wire bracket mold for a hair straightener. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the required products by methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, and stamping. Injection molds usually include a front mold and a back mold. When the front mold and the back mold are buckled together, the molten material is injected into the mold cavity through the gate. When the mold is opened, the front mold and the back mold are separated to remove the plastic product.

[0003] A hair straightener, also known as an electric straightener, uses electric current to heat the heating element MCH or PTC or heating wire of the hair straightener, which is then transferred to the aluminum plate or ceramic plate to generate heat. The hair is heated, softened, and then cooled to achieve the purpose of straightening the hair.

[0004] The heating wire in the hair straightener needs to be set on a bracket so that the heating wire can be laid and spread on the bracket. Therefore, the bracket has both a mounting structure for the heating wire and a structure for connecting the bracket to the shell of the hair straightener, which makes the bracket structure complicated and makes it inconvenient to demold the product after injection molding. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a heating wire bracket mold for a hair straightener, so as to solve the technical problem of inconvenient bracket demoulding in the prior art.

[0006] The utility model is implemented by the following technical solution: a heating wire bracket mold for a hair straightener, comprising a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism;

[0007] The front mold assembly includes a front mold plate, and the front mold plate is provided with a bracket concave mold;

[0008] The rear mold assembly includes a rear mold plate, and the rear mold plate is provided with a bracket convex mold. After the mold is closed, the bracket convex mold and the bracket concave mold form a bracket injection cavity;

[0009] The first side core pulling mechanism includes a first side core and a first oblique guide post, the first side core is slidably arranged on the rear template, one end of the first side core extends into the injection cavity of the bracket, a first oblique guide hole is provided on the first side core, the first oblique guide post is arranged on the front template, and the first oblique guide post extends into the first oblique guide hole;

[0010] The second side core pulling mechanism includes a second side core and a second oblique guide post, the second side core is slidably arranged on the rear template, one end of the second side core extends into the injection molding cavity of the bracket, a second oblique guide hole is provided on the second side core, the second oblique guide post is arranged on the front template, and the second oblique guide post extends into the second oblique guide hole;

[0011] During demoulding, the front template is separated from the rear template, the first inclined guide column drives the first side core to slide outward, and the second inclined guide column drives the second side core to slide outward.

[0012] In a possible embodiment, the first side core has a shaping surface, and a plurality of first shaping protrusions are provided on the shaping surface. The shaping surface is used to form a desired structure on the side of the product.

[0013] In a possible implementation manner, the end portion of the second side core has a second shaping protrusion, and the second shaping protrusion extends into the bracket injection molding cavity.

[0014] In a possible embodiment, the bracket protrusion has a shaping groove.

[0015] In a possible embodiment, a first guide groove is provided on the rear template, and the first side core is slidably disposed in the first guide groove.

[0016] In a possible implementation manner, a first position-limiting member is provided on the front template, and the first position-limiting member extends into the first guide groove. After the mold is closed, the first side core contacts the first position-limiting member.

[0017] In a possible embodiment, a positioning protrusion is provided at the end of the first limiting member, and a first positioning groove is provided at the bottom of the first guide groove. After the mold is closed, the positioning protrusion extends into the first positioning groove.

[0018] In a possible embodiment, a second guide groove is provided on the rear template, and the second side core is slidably disposed in the second guide groove.

[0019] In a possible implementation manner, a second position-limiting member is provided on the front template, and the second position-limiting member extends into the second guide groove. After the mold is closed, the second side core contacts the second position-limiting member.

[0020] In a possible implementation, an elastic positioning member is provided on the inner side wall of the second guide groove, and a second positioning groove corresponding to the elastic positioning member is provided on the side wall of the second side core.

[0021] Compared with the existing technology, the beneficial effect of the present invention is that: when the molded product needs to be demolded, the rear template is separated from the front template, and the first side core slides outward under the action of the first inclined guide column, thereby separating the first side core from the molded product, and the second side core slides outward under the action of the second inclined guide column, thereby separating the second side core from the molded product, effectively avoiding the first side core and the second side core from hindering the demolding of the molded product, and greatly improving the convenience of demolding the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a heating wire bracket mold for a hair straightener of the present invention;

[0023] Figure 2 This is a structural diagram of the front mold assembly in the heating wire bracket mold for the hair straightener of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the rear mold assembly in the mold of the heating wire bracket for the hair straightener of the present invention;

[0025] Figure 4 for Figure 3 A magnified view of the details at center A;

[0026] Figure 5 This is a schematic structural diagram of the first side core in the mold of the heating wire bracket for a hair straightener of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the second side core in the mold of the heating wire bracket for a hair straightener of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the lifting plate in the heating wire bracket mold for a hair straightener of the present invention.

[0029] In the picture:

[0030] 100, front mold fixing plate; 101, front mold plate; 102, bracket die; 103, first stopper; 104, positioning protrusion; 105, second stopper; 106, first guide post;

[0031] 200, rear mold fixing plate; 201, rear mold plate; 202, bracket punch; 203, shaping groove; 204, first guide groove; 205, first positioning groove; 206, second guide groove; 207, elastic positioning member; 208, spacer; 209, lifting plate; 210, ejector pin; 211, second guide post; 212, first guide hole; 213, second guide hole;

[0032] 300, first side core; 301, first oblique guide column; 302, first oblique guide hole; 303, shaping surface; 304, first shaping protrusion; 305, first clamping portion;

[0033] 400, second side core; 401, second oblique guide column; 402, second oblique guide hole; 403, second shaping protrusion; 404, second positioning groove; 405, second clamping portion. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] like Figure 1-7The mold for a heating wire holder for a hair straightener shown in the figure includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism; the front mold assembly includes a front mold plate 101, on which a holder die 102 is provided; the rear mold assembly includes a rear mold plate 201, on which a holder convex mold 202 is provided. After the molds are closed, the holder convex mold 202 and the holder die 102 form a holder injection cavity; the first side core pulling mechanism includes a first side core 300 and a first inclined guide post 301. The first side core 300 is slidably arranged on the rear mold plate 201. One end of the first side core 300 extends into the holder injection cavity. The first side core 300 is provided with a first inclined guide hole 302. The first inclined guide post 301 is provided with a first inclined guide hole 302. 1 is arranged on the front template 101, and the first inclined guide post 301 extends into the first inclined guide hole 302; the second side core pulling mechanism includes a second side core 400 and a second inclined guide post 401. The second side core 400 is slidably arranged on the rear template 201, and one end of the second side core 400 extends into the injection cavity of the bracket. The second side core 400 is provided with a second inclined guide hole 402. The second inclined guide post 401 is arranged on the front template 101, and the second inclined guide post 401 extends into the second inclined guide hole 402. During demolding, the front template 101 and the rear template 201 are separated, and the first inclined guide post 301 drives the first side core 300 to slide outward, and the second inclined guide post 401 drives the second side core 400 to slide outward. It should be noted that, after the bracket concave mold 102 and the bracket convex mold 202 are combined, two bracket injection cavities are formed, so that the present mold can injection mold two products at one time, which can be used as the heating wire brackets on the left and right clamping plates of the hair straightener respectively, so that the mold can injection mold the heating wire bracket required for one hair straightener at one time, which is beneficial to improving the production efficiency of the present mold. Therefore, the number of the first side core pulling mechanism and the second side core pulling mechanism are both two, the two first side cores 300 are relatively arranged on both sides of the rear template 201, and the two second side cores 400 are arranged side by side on one side of the rear template 201, and the two first oblique guide pillars 301 are arranged in a one-to-one correspondence with the two first side cores 300, and the two second oblique guide pillars 401 are arranged in a one-to-one correspondence with the two second side cores 400.

[0038] The beneficial effect of the present invention is that when the molded product needs to be demolded, the rear template 201 is separated from the front template 101, and the first side core 300 slides outward under the action of the first inclined guide column 301, thereby separating the first side core 300 from the molded product, and the second side core 400 slides outward under the action of the second inclined guide column 401, thereby separating the second side core 400 from the molded product, effectively avoiding the first side core 300 and the second side core 400 from hindering the demolding of the molded product, thereby greatly improving the convenience of demolding the molded product.

[0039] It should be added that the front mold assembly also includes a front mold fixing plate 100, the front mold plate 101 is arranged on the front mold fixing plate 100, the rear mold assembly also includes a rear mold fixing plate 200, a pad 208 and a lifting plate 209, the number of pads 208 is two and they are respectively arranged on both sides of the rear mold fixing plate 200, the rear mold plate 201 is arranged on the pad 208, the lifting plate 209 is arranged on the rear mold fixing plate 200, and the lifting plate 209 is located between the two pads 208, and a plurality of ejector pins 210 are provided on the lifting plate 209, and a plurality of pinholes are provided on the rear mold plate 201 and the bracket punch 202, and each ejector pin 210 can be slidably arranged in each pinhole. In addition, the front mold A first guide post 106 is provided on the plate 101, a second guide post 211 is provided on the lifting plate 209, and a first guide hole 212 and a second guide hole 213 are provided on the rear template 201. The first guide post 106 extends into the first guide hole 212, and the second guide post 211 extends into the second guide hole 213. When the molded product needs to be ejected, the lifting plate 209 rises under the action of an external driving member, so that the molded product is ejected by the ejector 210, completing the demolding work; cooling water pipes are provided in the bracket die 102, the bracket punch 202 and the first side core 300, so that the product can be quickly cooled and molded, which is beneficial to improving the molding rate of the product.

[0040] Please refer to Figure 5 In one possible embodiment, the first side core 300 has a shaping surface 303, which is provided with a plurality of first shaping protrusions 304. The shaping surface 303 is used to form a desired structure on the side of the product. It should be noted that one end of the first side core 300 extends from the side of the bracket punch 202, and the shaping surface 303 cooperates with the wall surface of the bracket punch 202 to form the desired structure on the product. The plurality of first shaping protrusions 304 are evenly spaced and arranged side by side. The first shaping protrusions 304 interfere with the bracket punch 202 to form a plurality of side-by-side through-holes on the side wall of the product.

[0041] Please refer to Figure 6 In one possible embodiment, the end of the second side core 400 has a second shaping protrusion 403, which extends into the bracket injection molding cavity. It should be noted that a gap is left between the second shaping protrusion 403 and the bracket punch 202. The second shaping protrusion 403 is provided to form a groove-like structure on the end surface of the product.

[0042] Please refer to Figure 3 and Figure 4 In one possible embodiment, the bracket punch 202 has a shaping groove 203. It should be noted that there are multiple shaping grooves 203, and the multiple shaping grooves 203 are interconnected to form connected ribs on the inner wall of the product.

[0043] Please refer to Figure 3In one possible embodiment, the rear template 201 is provided with a first guide groove 204, and the first side core 300 is slidably disposed in the first guide groove 204. It is easy to understand that the provision of the first guide groove 204 can provide a mounting base for the first side core 300 and simultaneously guide the first side core 300. In addition, the bottom sides of the first side core 300 extend outward to form a first clamping portion 305. The bottom sides of the first guide groove 204 have grooves for the first clamping portion 305 to extend into, thereby clamping the first side core 300 to the rear template 201. As a result, the first side core 300 can only slide along the first guide groove 204, preventing the first side core 300 from separating from the rear template 201.

[0044] Please refer to Figure 1 In one possible embodiment, a first stopper 103 is provided on the front mold plate 101. The first stopper 103 extends into the first guide groove 204. After the mold is closed, the first side core 300 abuts against the first stopper 103. It should be noted that when the hot melt material cools, the air pressure in the bracket injection cavity may be greater than the external air pressure, causing the first side core 300 to slide outward under the action of the air pressure. The provision of the first stopper 103 can prevent the first side core 300 from accidentally sliding, thereby improving the stability of the first side core 300.

[0045] Please refer to Figure 2 In one possible embodiment, a positioning protrusion 104 is provided at the end of the first position-limiting member 103, and a first positioning groove 205 is provided at the bottom of the first guide groove 204. After the mold is closed, the positioning protrusion 104 extends into the first positioning groove 205. It is easy to understand that when the mold is closed, the positioning protrusion 104 cooperates with the first positioning groove 205 to position the first position-limiting member 103. Moreover, since the first position-limiting member 103 is located on the front template 101 and the first positioning groove 205 is located on the rear template 201, the first position-limiting member 103 cooperates with the first positioning groove 205 to position the rear template 201, which helps to improve the accuracy of the mold closing between the front template 101 and the rear template 201.

[0046] Please refer to Figure 3In one possible embodiment, the rear template 201 is provided with a second guide groove 206, and the second side core 400 is slidably disposed in the second guide groove 206. It is easy to understand that the provision of the second guide groove 206 can provide a mounting base for the second side core 400 and simultaneously guide the second side core 400. In addition, the bottom sides of the second side core 400 extend outward to form a second clamping portion 405. The bottom sides of the second guide groove 206 have grooves for the second clamping portion 405 to extend into, thereby clamping the second side core 400 to the rear template 201. As a result, the second side core 400 can only slide along the second guide groove 206, preventing the second side core 400 from separating from the rear template 201.

[0047] Please refer to Figure 1 In one possible embodiment, the front mold plate 101 is provided with a second stopper 105 that extends into the second guide groove 206. After the mold is closed, the second side core 400 abuts against the second stopper 105. It is readily understood that the provision of the second stopper 105 prevents the second side core 400 from accidentally sliding under the action of air pressure, thereby improving the stability of the second side core 400.

[0048] Please refer to Figure 3 In one possible embodiment, an elastic positioning member 207 is provided on the inner side wall of the second guide groove 206, and a second positioning groove 404 corresponding to the elastic positioning member 207 is provided on the side wall of the second side core 400. It should be noted that two side-by-side second positioning grooves 404 are provided on one side wall of the second side core 400. When the second side core 400 is in the mold closing state, the elastic positioning member 207 extends into one of the second positioning grooves 404. When the second side core 400 is in the mold opening state, the elastic positioning member 207 extends into the other second positioning groove 404. The arrangement of the elastic positioning member 207 and the second positioning grooves 404 can play a positioning role in the sliding of the second side core 400. In addition, the first guide groove 204 and the first side core 300 are also provided with the same structure and play the same role for the first side core 300.

[0049] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A heating wire bracket mold for a hair straightener, characterized in that: It includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism; The front mold assembly includes a front mold plate, and the front mold plate is provided with a bracket concave mold; The rear mold assembly includes a rear mold plate, and the rear mold plate is provided with a bracket convex mold. After the mold is closed, the bracket convex mold and the bracket concave mold form a bracket injection cavity; The first side core pulling mechanism includes a first side core and a first oblique guide post, the first side core is slidably arranged on the rear template, one end of the first side core extends into the injection cavity of the bracket, a first oblique guide hole is provided on the first side core, the first oblique guide post is arranged on the front template, and the first oblique guide post extends into the first oblique guide hole; The second side core pulling mechanism includes a second side core and a second oblique guide post, the second side core is slidably arranged on the rear template, one end of the second side core extends into the injection molding cavity of the bracket, a second oblique guide hole is provided on the second side core, the second oblique guide post is arranged on the front template, and the second oblique guide post extends into the second oblique guide hole; During demoulding, the front template is separated from the rear template, the first inclined guide column drives the first side core to slide outward, and the second inclined guide column drives the second side core to slide outward.

2. The heating wire holder mold for a hair straightener according to claim 1, wherein: The first side core has a shaping surface, and a plurality of first shaping protrusions are provided on the shaping surface. The shaping surface is used to form a desired structure on the side of the product.

3. The heating wire holder mold for a hair straightener according to claim 1, wherein: The end of the second side core has a second shaping protrusion, and the second shaping protrusion extends into the bracket injection molding cavity.

4. The heating wire holder mold for a hair straightener according to claim 1, wherein: The bracket convex mold is provided with a shaping groove.

5. The heating wire holder mold for a hair straightener according to claim 1, wherein: The rear template is provided with a first guide groove, and the first side core can be slidably arranged in the first guide groove.

6. The heating wire holder mold for a hair straightener according to claim 5, wherein: The front template is provided with a first limiting piece, which extends into the first guide groove. After the mold is closed, the first side core contacts the first limiting piece.

7. The heating wire support mold for a hair straightener according to claim 6, wherein: A positioning protrusion is provided at the end of the first limiting member, and a first positioning groove is provided at the bottom of the first guide groove. After the mold is closed, the positioning protrusion extends into the first positioning groove.

8. The heating wire holder mold for a hair straightener according to claim 1, wherein: The rear template is provided with a second guide groove, and the second side core can be slidably arranged in the second guide groove.

9. The heating wire holder mold for a hair straightener according to claim 8, wherein: The front template is provided with a second limiting piece, and the second limiting piece extends into the second guide groove. After the mold is closed, the second side core contacts the second limiting piece.

10. The heating wire holder mold for a hair straightener according to claim 8, wherein: An elastic positioning piece is provided on the inner side wall of the second guide groove, and a second positioning groove corresponding to the elastic positioning piece is provided on the side wall of the second side core.

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