CN117644613A - Cable titanium wire silica gel injection molding die structure and injection molding method - Google Patents
Cable titanium wire silica gel injection molding die structure and injection molding method Download PDFInfo
- Publication number
- CN117644613A CN117644613A CN202311852528.7A CN202311852528A CN117644613A CN 117644613 A CN117644613 A CN 117644613A CN 202311852528 A CN202311852528 A CN 202311852528A CN 117644613 A CN117644613 A CN 117644613A
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- groove body
- injection molding
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- template
- silica gel
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 100
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000000741 silica gel Substances 0.000 title claims abstract description 36
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 36
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 8
- 238000005253 cladding Methods 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 9
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of encapsulation, and particularly discloses a cable titanium wire silica gel injection molding die structure, which comprises a first die core and a second die core matched with the first die core for use; the second mold core comprises a second mold plate, and a second groove body is formed in the second mold plate; the first mold core comprises a first mold plate, a first groove body and/or a third groove body which are matched with a second groove body are formed in the first mold plate, the first groove body is matched with the second groove body to be used for primary injection molding of an external blank, the third groove body is matched with the second groove body to be used for realizing secondary injection molding of the external blank, the first mold plate and the second groove body are used for injection molding in the first step, the third groove body and the second groove body are used for injection molding in the second step, the quality is guaranteed while the production efficiency is improved, the first injection molding step and the second injection molding step are matched to be used to ensure even flow of materials in the mold, and product defects caused by uneven distribution of the materials are avoided.
Description
Technical Field
The invention relates to the technical field of encapsulation, and particularly discloses a cable titanium wire silica gel injection molding die structure and an injection molding method.
Background
The cable titanium wire silica gel structure is widely applied to life, such as a neck hanging earphone, and the neck hanging Bluetooth earphone can be divided into a hard necklace and a soft necklace according to different necklace materials, and the soft necklace is more comfortable to wear when the necklace contacts with skin, is more convenient to store relatively and is widely applied by manufacturers;
the rigidity of the titanium wire is insufficient due to the particularity of the product of the conventional soft necklace, the titanium wire can swing up and down during liquid silicone injection molding, the plasticity of the wire is poor, the position cannot be fixed during liquid silicone injection molding, the whole leaking substrate of the product is poor, the normal molding of the product is difficult to ensure, and the good yield cannot be ensured, so that the cable titanium wire silicone injection molding die structure and the injection molding method are needed.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art, the invention aims to provide a cable titanium wire silica gel injection molding die structure and an injection molding method.
In order to achieve the above purpose, the cable titanium wire silica gel injection molding die structure comprises a first die core and a second die core which is matched with the first die core for use and is rotationally arranged; the second mold core comprises a second mold plate, and a second groove body is formed in the second mold plate;
the first mold core comprises a first mold plate, a first groove body and/or a third groove body which are matched with a second groove body are formed in the first mold plate, the first groove body is matched with the second groove body to be used for primary injection molding of a first part of an external blank, the third groove body is matched with the second groove body which is used for achieving secondary injection molding of a second part of the external blank after primary injection molding and rotation, and the first part of the blank and the second part of the blank are fixedly connected together to form a blank body.
Preferably, the first groove body is arranged on the first template and is used for matching with the second mold core to use the external memory material piece with the set position.
Preferably, a first injection molding opening communicated with the second groove body is formed in the second template, and the first injection molding opening is used for facilitating injection of the coated silica gel material into the second groove body.
Preferably, the mold structure further comprises a third mold core matched with the second mold core, the third mold core comprises a third mold plate, and the third groove body is arranged on the third mold plate and communicated with the second groove body to form a whole with the cladding layer for two-time injection molding.
Preferably, a second injection molding opening communicated with the third groove body is formed in the third template, and the second injection molding opening is used for facilitating injection of the coated silica gel material into the third groove body.
Preferably, the mold structure further comprises a mold base component used with the mold core, and the mold base component is used for injection molding of an end fixing piece for connecting the neck hanging part and the ear hanging part.
Preferably, the third template and the first template are respectively provided with a fourth groove body and a seventh groove body for accommodating a die holder component, the die holder component comprises a first die holder and a second die holder, and the first die holder and the second die holder are accommodated in the fourth groove body or the seventh groove body in a matched mode.
Preferably, the third template and the first template are provided with protrusions, and the first die holder and/or the second die holder are provided with fifth groove bodies for accommodating the protrusions.
Preferably, the cable titanium wire silica gel injection molding die structure further comprises a die frame, a first driving piece, a second driving piece and a third driving piece, wherein the second die core is positioned between the first die core and the third die core, the second die core is rotatably arranged on the die frame, and the first driving piece is used for driving the second die core to rotate; the second driving piece is used for driving the first mold core to be close to or far away from the second mold core, and the third driving piece is used for driving the third mold core to be close to or far away from the second mold core.
The cable titanium wire silica gel injection molding method comprises the following steps:
s1: limiting the memory material piece through a first groove body on the first template;
s2: the die holder component on the first die plate limits the lead and/or the memory material piece;
s3: the second template is buckled with the first template;
s4: the injection molding of the upper half coating layer is realized through a second template and a first injection molding opening arranged on the second template;
s5: turning over a second template for realizing injection molding of the upper half part to enable the second groove body to face upwards, and removing the first template to enable the die holder component to be clamped in the sixth groove body;
s6: arranging a third mold core/first mold core provided with a third groove body on the second mold core, and realizing injection molding of a lower half part of the coating layer through a second injection molding opening formed in a third mold plate;
s7: and taking out the injection molded product.
The invention has the beneficial effects that: the accurate positioning of the mould in the injection molding process can be ensured through the cooperation of the first groove body, the third groove body and the second groove body, so that the quality and the dimensional stability of a product are improved, the first-step injection molding is carried out through the cooperation of the first template and the second groove body, the second-step injection molding is carried out through the cooperation of the third groove body and the second groove body, the first-step injection molding is carried out through the first template and the second groove body, the second-step injection molding is carried out through the third groove body and the second groove body, and the corresponding positioning support is arranged for the secondary injection molding, so that the materials of different parts can be respectively injected, the injection molding time is shortened, the production efficiency is improved, the quality is ensured, the uniform flow of the materials in the mould can be ensured through the cooperation of the first-step injection molding and the second-step injection molding, and the product defects caused by uneven distribution of the materials are avoided.
Drawings
FIG. 1 is a schematic diagram of the first and second mold cores of the present invention;
FIG. 2 is a schematic diagram of the second mold core and the third mold core of the present invention;
FIG. 3 is a schematic front view of the body of the present invention;
FIG. 4 is a schematic view of the back of the body of the present invention;
FIG. 5 is a schematic view of a protrusion structure according to the present invention;
FIG. 6 is a schematic view of the blank construction of the present invention;
FIG. 7 is a schematic view of a third mold core structure according to the present invention;
FIG. 8 is a schematic view of a die holder assembly according to the present invention;
FIG. 9 is a schematic cross-sectional view of a blank of the present invention;
fig. 10 is an enlarged schematic view of fig. 3 a in accordance with the present invention.
The reference numerals include:
1-first mould core 2-second mould core 3-third mould core
4-die holder assembly 11-first die plate 12-first groove body
21-second template 22-second groove 31-third template
32-third groove 33-fourth groove 34-protrusion
41-first die holder 42-second die holder 43-connecting piece
44-fifth groove 23-sixth groove 24-first injection molding opening
35-second injection port 45-cooling port 36-protrusion
37-chamfer 13-seventh groove body
Detailed Description
The present invention will be further described with reference to examples and drawings, which are not intended to be limiting, for the understanding of those skilled in the art.
Referring to fig. 1 to 10, the cable titanium wire silica gel injection molding die structure of the present invention includes a first die core 1, and a second die core 2 rotatably arranged in cooperation with the first die core 1; the second mold core 2 comprises a second mold plate 21, and a second groove body 22 is formed in the second mold plate 21;
the first mold core 1 comprises a first mold plate 11, a first groove body 12 and/or a third groove body 32 matched with a second groove body 22 are formed in the first mold plate 11, the first groove body 12 is matched with the second groove body 22 to be used for primary injection molding of a first part on an external blank, the third groove body 32 is matched with the second groove body 22 to be used for primary injection molding and used for secondary injection molding of a second part on the external blank after rotation, and the first part of the blank and the second part of the blank are fixedly connected together to form a blank whole (namely a blank after molding).
Specifically, in this embodiment, the wire is a cable, the memory metal is a titanium wire, and the coating layer is a silica gel layer required to be injection molded outside the cable and the titanium wire.
Specifically, the accurate positioning of the mold in the injection molding process can be ensured through the matched use of the first groove body 12, the third groove body 32 and the second groove body 22, so that the quality and the dimensional stability of a product are improved, the first-step injection molding is performed through the matched use of the first template 11 and the second groove body 22, the second-step injection molding is performed through the matched use of the third groove body 32 and the second groove body 22, the first-step injection molding is performed through the first template 11 and the second groove body 22, the second-step injection molding is performed through the third groove body 32 and the second groove body 22, and the re-injection molding is performed with corresponding positioning support, so that the materials of different parts can be respectively injected, the injection molding time is reduced, the quality is ensured while the production efficiency is improved, the uniform flow of the materials in the mold can be ensured through the matched use of the first-step injection molding and the second-step injection molding, the product defects caused by the uneven distribution of the materials are avoided, the structure is simple and practical, and the production cost is effectively reduced.
Specifically, the external blank includes a wire and a memory material, in this embodiment, the first slot 12 is formed on the first mold plate 11 to match with the second mold core 2 to use the memory material with a set position, and is used for the second mold core 2 to perform injection molding on the wire portion, so that the memory material portion is used as a positioning/supporting device.
Specifically, the second mold plate 21 is provided with a first injection molding opening 24 communicated with the second groove body 22, and the first injection molding opening 24 is used for facilitating injection of the coated silica gel material into the second groove body 22.
Specifically, the mold structure further comprises a third mold core 3 matched with the second mold core 2, the third mold core 3 comprises a third mold plate 31, a third groove body 32 is formed on the third mold plate 31, is connected with the second groove body 22, and is used for integrally forming a cladding layer for re-injection molding and a cladding layer for primary injection molding.
Specifically, a second injection molding opening 35 communicated with the third tank body 32 is formed in the third mold plate 31, and the second injection molding opening 35 is used for facilitating injection of the coated silica gel material into the third tank body 32.
Specifically, the die structure further comprises a die holder component 4 matched with the die core, the die holder component 4 is provided with a cavity for injection molding of an end fixing piece for connecting the neck hanging part and the ear hanging part, the cavity is connected with the second groove body 22 or/and the third groove body 32 in a general mode, the cavity is formed integrally with the second groove body 22 or/and the third groove body 32 in the inside, injection molding efficiency is improved, incomplete injection molding of a single (second groove body 22 or the third groove body 32) can be avoided, yield is improved, and the cavity is communicated with the second groove body 22 in the embodiment.
Specifically, the third die plate 31 and the first die plate 11 are respectively provided with the fourth groove body 33 and the seventh groove body 13 for accommodating the die holder assembly 4, the die holder assembly 4 comprises a first die holder 41, a second die holder 42 and a rod body piece for connecting the first die holder 41 and the second die holder 42, the rod body piece is used for limiting the first die holder 41 and the second die holder 42, the first die holder 41 and the second die holder 42 are prevented from being offset or separated along the radial direction of the rod body piece, the stability of the first die holder 41 and the second die holder 42 in the injection molding process is effectively improved, and the first die holder 41 and the second die holder 42 are accommodated in the fourth groove body 33 or the seventh groove body 13 in a matched mode.
Specifically, a connecting piece 43 is arranged between the first die holder 41 and the second die holder 42, and the connecting piece 43 is used for limiting the first die holder 41 and the second die holder 42, so that stability of the die holder assembly 4 is further improved.
Specifically, the first mold plate 11 and the third mold plate 31 are provided with protrusions 34, the first mold base 41 and/or the second mold base 42 are provided with fifth groove bodies 44 matched with the protrusions 34, in this embodiment, the number of the protrusions 34 is two, and the first mold base 41 and the second mold base 42 are provided with fifth groove bodies 44 for accommodating the protrusions 34.
Specifically, the first template 11, the second template 21 and the third template 31 are provided with a plurality of protruding parts 36, the protruding parts 36 are used for clamping the die holder assembly 4, stability of the die holder assembly 4 is further improved, the protruding parts 36 are provided with cut angles 37 in the sea, and the cut angles 37 are used for facilitating placement of the die holder assembly 4.
Specifically, the cable titanium wire silica gel injection molding die structure simultaneously processes/molds four blanks at a time.
Specifically, the second template 21 is further provided with a separating piece, one end of the separating piece, far away from the second template 21, penetrates through the first template 11 and the third template 31 in a sliding manner, and abuts against one end, far away from the second template 21, of the separating piece along the direction of the second template 21 from the first template 11/the third template 31 through fixing the first template 11 and the third template 31, so that the second template 21 is separated from the first template 11/the third template 31, and further the templates are replaced or blanks subjected to injection molding are taken out conveniently.
Specifically, the mold core and/or the mold base assembly 4 is provided with a cooling port 45 for cooling, and the cooling mode can be, but is not limited to, air cooling, water cooling or natural cooling.
The special mould lifting plate structure is designed, the product is injected with LSR twice, the lower half of purple is removed after the first injection is finished, but half of the product is reserved on the red plate and is turned over by 180 degrees immediately, the other half of the product is injected with the green upper plate at the moment, the template is taken out after the completion, the product is positioned after the completion, the product is ensured not to be displaced due to the injection pressure, and meanwhile, the product always moves along with the template, so that the dislocation caused by the two injections is reduced. The test effect is ideal, and the product proposal is introduced into mass production
Specifically, the second die plate 21 is provided with a sixth groove 23 for accommodating the die holder assembly 4, and the sixth groove 23 is matched with the fourth groove 33/the seventh groove 13 to realize limiting of the die holder assembly 4.
Specifically, the second mold core 2 is clamped with the first mold core 1 and the third mold core 3, and is provided with a bulge, for example, the second mold core 2 is provided with a groove for matching the bulge or a groove for accommodating the bulge, or the first mold core 1 and the third mold core 3 are provided with bulges, and the second mold core 2 is provided with a groove for matching the bulge or a groove for accommodating the bulge.
Specifically, the first mold core 1, the second mold core 2 and the third mold core 3 are integrally formed, and the integrally formed design can ensure the accurate alignment and stability between the mold cores, so that the dimensional stability and consistency of products are improved, the loosening and displacement between the mold cores can be reduced due to the integrally formed design of the mold cores, the product defects and dimensional deviation caused by the loosening and displacement are avoided, meanwhile, the stability and durability of the mold can be improved due to the integrally formed design of the mold cores, and the service life of the mold is prolonged.
Specifically, the cable titanium wire silica gel injection molding die structure further comprises a die frame, a first driving piece, a second driving piece and a third driving piece, wherein the second die core 2 is positioned between the first die core 1 and the third die core 3, the second die core 2 is rotatably arranged on the die frame, and the first driving piece is used for driving the second die core 2 to rotate; the second driving piece is used for driving the first mold core 1 to be close to or far away from the second mold core 2, the third driving piece is used for driving the third mold core 3 to be close to or far away from the second mold core 2, and the first driving piece, the second driving piece and the third driving piece are all arranged on the mold frame.
The cable titanium wire silica gel injection molding method comprises the following steps:
s1: limiting the memory material piece through a first groove body 12 on the first template 11;
s2: the first mold core 1 is driven to be close to or far away from the second mold core 2 by the second driving piece for buckling the second mold plate 21 with the first mold plate 11;
s3: the second groove body 22 formed on the second template 21 is communicated with the first groove body 12;
s4: injecting a silica gel material into the second groove body 22 through a first injection molding opening 24 formed in the second template 21 to form a coating layer coated on the upper half part of the memory material piece;
s5: turning the second template 21 for realizing injection molding of the upper half by 180 degrees to enable the second groove body 22 to face upwards, and removing the first template 11 after cooling;
s6: the third driving piece is used for driving the third mold core 3 to be close to or far from the second mold core 2, and is used for arranging a third mold plate 31 provided with a third groove body 32 on the second mold core 2, wherein the third mold plate 31 is provided with the third groove body 32 communicated with the second groove body 22, and a silica gel material is injected into the third groove body 32 through a second injection molding opening 35 formed in the third mold plate 31, so that a lower half cladding layer which is clad on a memory material piece and fixedly connected with an upper half cladding layer is realized;
s6: after cooling, via a third drive for driving the third mould core 3 towards or away from the second mould core 2, for separating the third mould plate 31 from the second mould core 2.
S7: and taking out the injection molded cable titanium wire silica gel piece.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (10)
1. The cable titanium wire silica gel injection molding die structure comprises a first die core (1) and a second die core (2) which is matched with the first die core (1) for use and is rotationally arranged; the method is characterized in that: the second mold core (2) comprises a second mold plate (21), and a second groove body (22) is formed in the second mold plate (21);
the first mold core (1) comprises a first mold plate (11), a first groove body (12) and/or a third groove body (32) which are matched with a second groove body (22) are formed in the first mold plate (11), the first groove body (12) is matched with the second groove body (22) to be used for primary injection molding of a first part on an external blank, the third groove body (32) is matched with the second groove body (22) which is used for secondary injection molding of a second part on the external blank after primary injection molding and rotation, and the first part of the blank and the second part of the blank are fixedly connected together to form a blank whole.
2. The cable titanium wire silica gel injection molding die structure according to claim 1, wherein: the external blank comprises a wire and a memory material piece, the first groove body (12) is arranged on the first template (11) and matched with the second mold core (2) for use, and the first groove body is used for accommodating the set position external memory material piece to provide support for the blank.
3. The cable titanium wire silica gel injection molding die structure according to claim 1, wherein: a first injection molding opening (24) communicated with the second groove body (22) is formed in the second template (21), and the first injection molding opening (24) is used for conveniently injecting coated silica gel into the second groove body (22).
4. The cable titanium wire silica gel injection molding die structure according to claim 1, wherein: the mold structure further comprises a third mold core (3) matched with the second mold core (2), the third mold core (3) comprises a third mold plate (31), and a third groove body (32) is formed on the third mold plate (31) and is connected with the second groove body (22) to form a whole through a coating layer which is commonly used for re-injection molding.
5. The cable titanium wire silica gel injection molding die structure according to claim 4, wherein: a second injection molding opening (35) communicated with the third groove body (32) is formed in the third template (31), and the second injection molding opening (35) is used for conveniently injecting and coating silica gel into the third groove body (32).
6. The cable titanium wire silica gel injection molding die structure according to claim 4, wherein: the die structure also comprises a die holder component (4) matched with the die core, and the die holder component (4) is used for injection molding of an end fixing piece for connecting the neck hanging part and the ear hanging part.
7. The cable titanium wire silica gel injection molding die structure according to claim 6, wherein: a fourth groove body (33) and a seventh groove body (13) for accommodating a die holder component (4) are respectively formed in the third die plate (31) and the first die plate (11), the die holder component (4) comprises a first die holder (41) and a second die holder (42), and the first die holder (41) and the second die holder (42) are accommodated in the fourth groove body (33) or the seventh groove body (13) in a matched mode.
8. The cable titanium wire silica gel injection molding die structure as set forth in claim 7, wherein: the third template (31) and the first template (11) are provided with protrusions (34), and the first die holder (41) and/or the second die holder (42) are provided with fifth groove bodies (44) for accommodating the protrusions (34).
9. The cable titanium wire silica gel injection molding die structure according to claim 1, wherein: the cable titanium wire silica gel injection molding die structure further comprises a die frame, a first driving piece, a second driving piece and a third driving piece, wherein the second die core (2) is positioned between the first die core (1) and the third die core (3), the second die core (2) is rotatably arranged on the die frame, and the first driving piece is used for driving the second die core (2) to rotate; the second driving piece is used for driving the first mold core (1) to be close to or far away from the second mold core (2), and the third driving piece is used for driving the third mold core (3) to be close to or far away from the second mold core (2).
10. The cable titanium wire silica gel injection molding method comprises the following steps:
s1: limiting the memory material piece through a first groove body (12) on the first template (11);
s2: the second template (21) is buckled with the first template (11);
s3: a second groove body (22) formed in the second template (21) is communicated with the first groove body (12);
s4: injecting a silica gel material into the second groove body (22) through a first injection molding opening (24) formed in the second template (21) to form a coating layer coated on the upper half part of the memory material piece;
s5: turning over a second template (21) for realizing injection molding of the upper half part to enable a second groove body (22) to face upwards, and removing the first template (11);
s6: a third template (31) provided with a third groove body (32) is arranged on the second mold core (2), the third template (31) is provided with the third groove body (32) communicated with the second groove body (22), and a silica gel material is injected into the third groove body (32) through a second injection molding opening (35) formed in the third template (31) so as to realize the coating of a lower half cladding layer which is fixedly connected with an upper half cladding layer of a memory material piece;
s7: and taking out the injection molded cable titanium wire silica gel piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852528.7A CN117644613A (en) | 2023-12-28 | 2023-12-28 | Cable titanium wire silica gel injection molding die structure and injection molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852528.7A CN117644613A (en) | 2023-12-28 | 2023-12-28 | Cable titanium wire silica gel injection molding die structure and injection molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117644613A true CN117644613A (en) | 2024-03-05 |
Family
ID=90049616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311852528.7A Pending CN117644613A (en) | 2023-12-28 | 2023-12-28 | Cable titanium wire silica gel injection molding die structure and injection molding method |
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| Country | Link |
|---|---|
| CN (1) | CN117644613A (en) |
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2023
- 2023-12-28 CN CN202311852528.7A patent/CN117644613A/en active Pending
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