Secondary forming die

Abstract

The utility model provides a secondary forming die. The secondary forming die comprises a first die set, a second die set and a transmission jig. The first module is provided with at least two first forming cavities, the second module is provided with at least two second forming cavities, the first module and the second module are linearly arranged, and the transmission jig is arranged between the first module and the second module in a transmission mode. The transmission jig is provided with at least two containing cavities, the two containing cavities correspond to the two first forming cavities and the two second forming cavities in a one-to-one mode, each containing cavity is used for containing a connecting wire, and each containing cavity communicates with the corresponding first forming cavity and the corresponding second forming cavity. At least part of the connecting line is arranged in the containing cavity in a protruding mode and located in the first forming cavity or the second forming cavity. The secondary forming die is simple in structure and capable of achieving batch transmission, and therefore the preparation efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field especially relates to a secondary forming mould. BACKGROUND

[0002] Earphone is divided into rear hanging type earphone, neck hanging type earphone and ear hanging type earphone according to wearing mode, and the hanging type earphone, neck hanging type earphone and ear hanging type earphone are connected with connecting line, and the connecting line is further covered with plastic coating layer, especially for rear hanging type and ear hanging type, since it needs to adapt to the natural form of human body, part needs to be covered with soft glue, and it also needs to be covered with hard glue, therefore, the covering of connecting line needs to adopt secondary forming process to realize.

[0003] For secondary injection molding, it is a special plastic forming process, also called sleeve beer or rubber coating, and demolding is needed when transferring the primary forming product, and then a large amount of manpower and time is consumed, and the production efficiency is low, such as the invention patent application with the application number CN2202210777319.X, which increases a large number of structures for realizing automatic moving demolding, which effectively improves the production efficiency, but the structure complexity is high, and the demolding transfer is one-to-one, so that the secondary forming covering efficiency of the connecting line is low. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiency in the prior art, and provides a secondary forming mould which is simple in structure, can realize batch transmission and can improve the preparation efficiency.

[0005] The utility model aims at overcoming the deficiency in the prior art, and provides a secondary forming mould which is simple in structure, can realize batch transmission and can improve the preparation efficiency.

[0006] A secondary forming mould, comprising a first mould group and a second mould group, wherein the first mould group is provided with at least two first forming cavities, the second mould group is provided with at least two second forming cavities, the first mould group and the second mould group are linearly arranged, the secondary forming mould further comprises a transmission jig, the transmission jig is arranged between the first mould group and the second mould group in a transmission mode, the transmission jig is provided with at least two accommodation cavities, the two accommodation cavities are arranged in a one-to-one correspondence with the two first forming cavities and the two second forming cavities respectively, each accommodation cavity is used for accommodating a connecting line, and each accommodation cavity is in communication with the corresponding first forming cavity and second forming cavity respectively, so that the connecting line is at least partially arranged in the accommodation cavity and located in the first forming cavity or the second forming cavity.

[0007] In one embodiment, the first mould group comprises a first upper die and a first lower die, and the first upper die and the first lower die form at least two first forming cavities.

[0008] In one of the embodiments, the second mold set comprises a second upper mold and a second lower mold, and the second upper mold and the second lower mold enclose at least two second forming cavities.

[0009] In one of the embodiments, the transmission jig comprises an upper transmission accommodating portion and a lower transmission accommodating portion, and the upper transmission accommodating portion and the lower transmission accommodating portion are detachably connected and are arranged in a stacked manner to enclose at least two accommodating cavities.

[0010] In one of the embodiments, the connecting wire is blocked at one end of each of the accommodating cavities close to the corresponding first forming cavity or the corresponding second forming cavity.

[0011] In one of the embodiments, the transmission jig further comprises at least two clamping grooves, and two of the clamping grooves are in one-to-one correspondence with two of the accommodating cavities, and the connecting wire is clamped at each of the clamping grooves.

[0012] In one of the embodiments, the transmission jig further comprises at least two demolding grooves, and two of the demolding grooves are exposed on the transmission jig, and two of the demolding grooves are in one-to-one correspondence with two of the accommodating cavities, and the connecting wire is at least partially located at the demolding grooves.

[0013] In one of the embodiments, the number of the first forming cavities is a plurality, and the plurality of the first forming cavities are arranged linearly on the first mold set;

[0014] The number of the second forming cavities is a plurality, and the plurality of the second forming cavities are arranged on the second mold set;

[0015] The number of the accommodating cavities is a plurality, and the plurality of the accommodating cavities are arranged linearly on the transmission jig, and the plurality of the accommodating cavities are arranged in one-to-one correspondence with the plurality of the first forming cavities and the plurality of the second forming cavities, respectively.

[0016] In one of the embodiments, the first mold set further comprises at least two third forming cavities, and two of the first forming cavities and two of the third forming cavities are arranged in one-to-one axial symmetry, and each of the first forming cavities is in communication with the corresponding third forming cavity.

[0017] The second mold set further comprises two fourth forming cavities, and two of the second forming cavities and two of the fourth forming cavities are arranged in one-to-one axial symmetry, and each of the second forming cavities is in communication with the corresponding fourth forming cavity.

[0018] The number of the transmission jigs is two, and two of the transmission jigs are arranged in axial symmetry between the first mold set and the second mold set.

[0019] Two of the accommodation cavities of one of the transmission jigs are arranged one-to-one with two of the first forming cavities and two of the second forming cavities, and two of the accommodation cavities of the other transmission jig are arranged one-to-one with two of the third forming cavities and two of the fourth forming cavities, each of the accommodation cavities of one of the transmission jigs is communicated with the corresponding first forming cavity and second forming cavity, and each of the accommodation cavities of the other transmission jig is communicated with the corresponding third forming cavity and fourth forming cavity, so that the connecting line is at least partially protrudingly arranged in the accommodation cavity and located in the first forming cavity, second forming cavity, third forming cavity or fourth forming cavity.

[0020] In one of the embodiments, the first mold set is provided with a first avoiding hole, and the transmission jig is detachably clamped in the first avoiding hole.

[0021] In one of the embodiments, the second mold set is provided with a second avoiding hole, and the transmission jig is detachably clamped in the second avoiding hole.

[0022] Compared with the prior art, the utility model has at least the following advantages:

[0023] The secondary forming mold of the utility model makes the transmission jig provided with at least two accommodation cavities, and each of the accommodation cavities is used for accommodating the connecting line, so that the transmission jig can realize transmission of at least two connecting lines, and the transmission jig is arranged between the first mold set and the second mold set, and the two accommodation cavities are arranged one-to-one with two first forming cavities and two second forming cavities, so that the connecting line is at least partially protrudingly arranged in the accommodation cavity and located in the first forming cavity or second forming cavity, that is, the transmission jig transmits at least two connecting lines needing to be injection coated between the first forming cavity and the second forming cavity, better realizes batch demolding of the connecting line after the first injection and transmission to the second injection, effectively realizes batch demolding transmission of the connecting line, and further effectively improves the secondary injection coating efficiency of the connecting line, and the structure of the secondary forming mold is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can be obtained without the creative labor on the premise of the drawings.

[0025] Figure 1 It is the structural schematic diagram of the secondary forming mold of one embodiment of the utility model;

[0026] Figure 2 It is the structural schematic diagram of the secondary forming mold of one embodiment of the utility model;Figure 1 exploded view of the secondary molding mold shown in use;

[0027] Figure 3 for Figure 1 partial exploded view of the secondary molding mold shown;

[0028] Figure 4 for Figure 1 another partial exploded view of the secondary molding mold shown;

[0029] Figure 5 for Figure 1 still another partial exploded view of the secondary molding mold shown;

[0030] Figure 6 for Figure 1 still another partial exploded view of the secondary molding mold shown. DETAILED DESCRIPTION

[0031] For the purpose of promoting an understanding of the application, the application will be described in greater detail below with reference to the illustrative drawings. The preferred embodiments of the application are shown in the drawings. However, the application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0032] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right", and the like are merely used for the purpose of illustration and are not intended to be limiting.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0034] The application provides a secondary forming die. The secondary forming die comprises a first die set, a second die set and a transmission fixture. The first die set is provided with at least two first forming cavities, the second die set is provided with at least two second forming cavities, the first die set and the second die set are linearly arranged, and the transmission fixture is arranged between the first die set and the second die set in a transmission mode. The transmission fixture is provided with at least two accommodation cavities, the two accommodation cavities are arranged in one-to-one correspondence with the two first forming cavities and the two second forming cavities respectively, each accommodation cavity is used for accommodating a connecting wire, and each accommodation cavity is communicated with the corresponding first forming cavity and second forming cavity respectively, so that the connecting wire is at least partially arranged in the accommodation cavity and located in the first forming cavity or the second forming cavity.

[0035] The secondary forming die makes the transmission fixture provided with at least two accommodation cavities, each accommodation cavity is used for accommodating a connecting wire, so that the transmission fixture can realize transmission of at least two connecting wires, the transmission fixture is arranged between the first die set and the second die set in a transmission mode, the two accommodation cavities are arranged in one-to-one correspondence with the two first forming cavities and the two second forming cavities respectively, so that the connecting wire is at least partially arranged in the accommodation cavity and located in the first forming cavity or the second forming cavity, the transmission fixture transmits at least two connecting wires which need to be injection coated between the first forming cavity and the second forming cavity, the connecting wire is better realized batch demolding after the first injection and transmission for the second injection, the batch demolding transmission of the connecting wire is effectively realized, the secondary injection coating efficiency of the connecting wire is effectively improved, and the structure of the secondary forming die is relatively simple.

[0036] In order to better understand the secondary forming die of the application, the secondary forming die of the application is further explained as follows:

[0037] Please refer to Figures 1 to 6The secondary molding die 10 of one embodiment comprises a first mold set 100, a second mold set 200 and a transmission fixture 300. The first mold set 100 is provided with at least two first molding cavities 101, the second mold set 200 is provided with at least two second molding cavities 201, the first mold set 100 and the second mold set 200 are linearly arranged, and the transmission fixture 300 is transmissionally arranged between the first mold set 100 and the second mold set 200. The transmission fixture 300 is provided with at least two accommodation cavities 301, the two accommodation cavities 301 are one-to-one correspondingly arranged with the two first molding cavities 101 and the two second molding cavities 201, each accommodation cavity 301 is used for accommodating a connecting line, and each accommodation cavity 301 is respectively communicated with the corresponding first molding cavity 101 and the second molding cavity 201, so that the connecting line is at least partially protrudingly arranged in the accommodation cavity 301 and located in the first molding cavity 101 or the second molding cavity 201. It can be understood that the secondary molding die is mounted on an injection mold, the first molding cavity and the second molding cavity are both communicated with a flow channel of the injection mold, and are used for respectively introducing molten plastic into the first molding cavity and the second molding cavity through the flow channel. Further, the transmission fixture is transmissionally arranged between the first mold set and the second mold set by a mechanical hand. Further, an end portion of the transmission fixture is connected with the mechanical hand; or the transmission fixture is transmissionally arranged between the first mold set and the second mold set by manual operation.

[0038] The secondary molding die 10 described above is provided with at least two accommodation cavities 301 in the transmission fixture 300, and each accommodation cavity 301 is used for accommodating a connecting line, that is, the transmission fixture 300 can realize transmission of at least two connecting lines at the same time, and the transmission fixture 300 is transmissionally arranged between the first mold set 100 and the second mold set 200, the two accommodation cavities 301 are one-to-one correspondingly arranged with the two first molding cavities 101 and the two second molding cavities 201, so that the connecting line is at least partially protrudingly arranged in the accommodation cavity 301 and located in the first molding cavity 101 or the second molding cavity 201, that is, the transmission fixture 300 transmissionally arranges at least two connecting lines which need to be injection coated between the first molding cavity 101 and the second molding cavity 201, which better realizes batch demolding of the connecting line after the first injection and transmission to the second injection, effectively realizes batch demolding and transmission of the connecting line, and further effectively improves the secondary injection coating efficiency of the connecting line, and the structure of the secondary molding die 10 is relatively simple.

[0039] Please refer to Figures 1 to 6In one of the embodiments, the first mold set 100 comprises a first upper mold 110 and a first lower mold 120, and the first upper mold 110 and the first lower mold 120 are closed to form at least two first forming cavities 101. Further, the second mold set 200 comprises a second upper mold 210 and a second lower mold 220, and the second upper mold 210 and the second lower mold 220 are closed to form at least two second forming cavities 201, which preferably ensures the rapid batch demolding of the connecting lines. Further, the first upper mold 110 is arranged on an upper mold base of the injection mold, and the first lower mold 120 is arranged on a lower mold base of the injection mold. Further, the second upper mold 210 is arranged on the upper mold base of the injection mold, and the second lower mold 220 is arranged on the lower mold base of the injection mold.

[0040] Please refer to Figures 1 to 6 In one of the embodiments, the transmission jig 300 comprises an upper transmission accommodation portion 310 and a lower transmission accommodation portion 320, and the upper transmission accommodation portion 310 and the lower transmission accommodation portion 320 are detachably connected and arranged in layers to form at least two accommodation cavities 301, which is conducive to the rapid accommodation of the connecting lines in the accommodation grooves of the transmission jig 300 and the rapid extraction of the connecting lines from the accommodation grooves of the transmission jig 300 after the secondary injection.

[0041] Please refer to Figure 2 In one of the embodiments, the connecting lines are blocked at one end of each accommodation cavity 301 close to the corresponding first forming cavity 101 or the corresponding second forming cavity 201, which preferably ensures the secondary injection covering effect of the connecting lines.

[0042] Please refer to Figures 1 to 6 In one of the embodiments, the transmission jig 300 is further provided with at least two clamping grooves 302, and the two clamping grooves 302 are in one-to-one correspondence with the two accommodation cavities 301. The connecting lines are clamped at each clamping groove 302, which improves the accommodation stability of the connecting lines at each accommodation groove of the transmission jig 300.

[0043] Please refer to Figures 1 to 6 In one of the embodiments, the transmission jig 300 is further provided with at least two demolding grooves 303, and the two demolding grooves 303 are exposed to the transmission jig 300 and in one-to-one correspondence with the two accommodation cavities 301. The connecting lines are at least partially located at the demolding grooves 303, which is further conducive to the rapid extraction of the connecting lines from the accommodation grooves of the transmission jig 300 after the secondary injection.

[0044] Please refer to Figures 1 to 6In one of the embodiments, the first forming cavities 101 are multiple in number, and the multiple first forming cavities 101 are linearly arranged on the first mold set 100. Further, the second forming cavities 201 are multiple in number, and the multiple second forming cavities 201 are arranged on the second mold set 200. Further, the accommodation cavities 301 are multiple in number, and the multiple accommodation cavities 301 are linearly arranged on the transmission jig 300, and the multiple accommodation cavities 301 are respectively arranged one-to-one corresponding to the multiple first forming cavities 101 and the multiple second forming cavities 201, further improving the efficiency of the batch secondary injection molding of the connecting lines.

[0045] Please refer to Figures 1 to 6 In one of the embodiments, the first mold set 100 is further provided with at least two third forming cavities 102, and the two first forming cavities 101 and the two third forming cavities 102 are arranged one-to-one corresponding to the axial symmetry, and each first forming cavity 101 is in communication with the corresponding third forming cavity 102. Further, the second mold set 200 is further provided with two fourth forming cavities 202, and the two second forming cavities 201 and the two fourth forming cavities 202 are arranged one-to-one corresponding to the axial symmetry, and each second forming cavity 201 is in communication with the corresponding fourth forming cavity 202. Further, the number of the transmission jigs 300 is two, and the two transmission jigs 300 are arranged axially symmetrically between the first mold set 100 and the second mold set 200, and the two accommodation cavities 301 of one transmission jig 300 are arranged one-to-one corresponding to the two first forming cavities 101 and the two second forming cavities 201, and the two accommodation cavities 301 of the other transmission jig 300 are arranged one-to-one corresponding to the two third forming cavities 102 and the two fourth forming cavities 202, and each accommodation cavity 301 of one transmission jig 300 is in communication with the corresponding first forming cavity 101 and the second forming cavity 201, and each accommodation cavity 301 of the other transmission jig 300 is in communication with the corresponding third forming cavity 102 and the fourth forming cavity 202, so that the connecting lines are at least partially protrudingly arranged in the accommodation cavities 301 and located in the first forming cavities 101, the second forming cavities 201, the third forming cavities 102 or the fourth forming cavities 202, further improving the efficiency of the batch secondary injection molding of the connecting lines.

[0046] Please refer to Figures 1 to 6 In one of the embodiments, the first mold set 100 is provided with a first avoiding hole 103, and the transmission jig 300 is detachably connected to the first avoiding hole 103, ensuring the stable connection of the transmission jig 300 on the first mold set 100, and further ensuring the secondary injection molding effect of the connecting lines.

[0047] Please refer to Figures 1 to 6In one of the embodiments, the second mold set 200 is provided with a second avoiding hole 203, and the transmission fixture 300 is detachably connected to the second avoiding hole 203, so that the transmission fixture 300 is stably connected to the second mold set 200, and the secondary injection covering effect of the connecting line is better ensured.

[0048] Compared with the prior art, the utility model has at least the following advantages:

[0049] The secondary forming mold 10 of the utility model makes the transmission fixture 300 provided with at least two accommodating cavities 301, and each accommodating cavity 301 is used for accommodating the connecting line, so that the transmission fixture 300 can realize the transmission of at least two connecting lines, and the transmission fixture 300 is arranged between the first mold set 100 and the second mold set 200, the two accommodating cavities 301 are correspondingly arranged with the two first forming cavities 101 and the two second forming cavities 201, so that the connecting line is at least partially arranged in the accommodating cavity 301 and located in the first forming cavity 101 or the second forming cavity 201, and the transmission fixture 300 transmits at least two connecting lines needing injection covering between the first forming cavity 101 and the second forming cavity 201, so that the connecting line is better realized batch demolding after the first injection and transmitted to the second injection, the batch demolding transmission of the connecting line is effectively realized, and the secondary injection covering efficiency of the connecting line is effectively improved, and the structure of the secondary forming mold 10 is relatively simple.

[0050] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A secondary molding mold comprising a first mold block provided with at least two first molding cavities and a second mold block provided with at least two second molding cavities, the first mold block and the second mold block being linearly arranged, characterized in that, The secondary forming die further comprises a transmission fixture, the transmission fixture is arranged between the first die set and the second die set, the transmission fixture is provided with at least two accommodation cavities, the two accommodation cavities are arranged in one-to-one correspondence with the two first forming cavities and the two second forming cavities respectively, each accommodation cavity is used for accommodating a connecting line, and each accommodation cavity is in communication with the corresponding first forming cavity and the corresponding second forming cavity respectively, so that the connecting line is at least partially arranged in the accommodation cavity and located in the first forming cavity or the second forming cavity.

2. The overmolding mold according to claim 1, characterized in that The first die set comprises a first upper die and a first lower die, and the first upper die and the first lower die form at least two first forming cavities.

3. The overmolding mold according to claim 1, wherein The second die set comprises a second upper die and a second lower die, and the second upper die and the second lower die form at least two second forming cavities.

4. The secondary molding die according to claim 1, characterized by The transmission fixture comprises an upper transmission accommodation part and a lower transmission accommodation part, the upper transmission accommodation part and the lower transmission accommodation part are detachably connected, and the upper transmission accommodation part and the lower transmission accommodation part are arranged in layers to form at least two accommodation cavities.

5. The overmolding mold according to claim 1, wherein The connecting line is blocked at one end of each accommodation cavity close to the corresponding first forming cavity or the corresponding second forming cavity.

6. The overmolding mold according to claim 1, wherein The transmission fixture is further provided with at least two clamping grooves, the two clamping grooves are in one-to-one correspondence with the two accommodation cavities, and the connecting line is clamped at each clamping groove.

7. The overmolding mold according to claim 1, wherein The transmission fixture is further provided with at least two demolding grooves, the two demolding grooves are exposed on the transmission fixture, and the two demolding grooves are in one-to-one correspondence with the two accommodation cavities, and the connecting line is at least partially located at the demolding groove.

8. The overmolding mold according to claim 1, wherein The number of the first forming cavities is a plurality, and the plurality of first forming cavities are linearly arranged on the first die set; The number of the second forming cavities is a plurality, and the plurality of second forming cavities are arranged on the second die set; The number of the accommodation cavities is a plurality, and the plurality of accommodation cavities are linearly arranged on the transmission fixture, and the plurality of accommodation cavities are arranged in one-to-one correspondence with the plurality of first forming cavities and the plurality of second forming cavities respectively.

9. The overmolding mold according to claim 1, wherein The first die set is further provided with at least two third forming cavities, the two first forming cavities and the two third forming cavities are arranged in one-to-one axial symmetry, and each first forming cavity is in communication with the corresponding third forming cavity; The second die set is further provided with two fourth forming cavities, the two second forming cavities and the two fourth forming cavities are arranged in one-to-one axial symmetry, and each second forming cavity is in communication with the corresponding fourth forming cavity; The number of the transmission fixtures is two, and the two transmission fixtures are arranged in axial symmetry between the first die set and the second die set; Two of the accommodation cavities of one of the transmission jigs are respectively arranged in one-to-one correspondence with two of the first forming cavities and two of the second forming cavities, and two of the accommodation cavities of the other transmission jig are respectively arranged in one-to-one correspondence with two of the third forming cavities and two of the fourth forming cavities. Each of the accommodation cavities of one of the transmission jigs is respectively communicated with the corresponding first forming cavity and the second forming cavity, and each of the accommodation cavities of the other transmission jig is respectively communicated with the corresponding third forming cavity and the fourth forming cavity, so that the connection line is at least partially protrudingly arranged in the accommodation cavity and located in the first forming cavity, the second forming cavity, the third forming cavity or the fourth forming cavity.

10. The overmolding mold according to claim 1, characterized by The first mold set is provided with a first avoidance hole, and the transmission jig is detachably connected to the first avoidance hole; and / or The second mold set is provided with a second avoidance hole, and the transmission jig is detachably connected to the second avoidance hole.

Images