CN219855764U - Medical instrument handle silica gel injection mold - Google Patents
Medical instrument handle silica gel injection mold Download PDFInfo
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- CN219855764U CN219855764U CN202321287155.9U CN202321287155U CN219855764U CN 219855764 U CN219855764 U CN 219855764U CN 202321287155 U CN202321287155 U CN 202321287155U CN 219855764 U CN219855764 U CN 219855764U
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- mold core
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- positioning
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- 238000002347 injection Methods 0.000 title claims abstract description 44
- 239000007924 injection Substances 0.000 title claims abstract description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000000741 silica gel Substances 0.000 title claims abstract description 17
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 17
- 238000001746 injection moulding Methods 0.000 claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims 7
- 238000002360 preparation method Methods 0.000 description 4
- 238000009966 trimming Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a medical instrument handle silica gel injection mold, which has the innovation points that: the mold comprises a mold base, a mold top cover, a lower mold core seat, a lower mold core, an upper mold core seat, an upper mold core, a mold interface component and a heating rod, wherein the lower mold core seat is arranged on the mold base, the lower mold core is arranged in an inner cavity of the lower mold core seat, the upper mold core is arranged in the inner cavity of the upper mold core seat, the upper mold core seat is connected with the lower mold core seat in an up-down involution manner, the mold top cover is connected with the upper mold core seat, an upper cavity provided with the upper mold core and a lower cavity provided with the lower mold core are involuted to form an injection molding cavity with a double station, an injection molding nozzle communicated with the injection molding cavity is arranged on the mold top cover, the upper mold core and the lower mold core are respectively provided with the heating rod, and a mold interface component for adjusting injection molding flash and a die connecting line of a product is arranged between the upper mold core and the lower mold core. The utility model can simultaneously carry out injection molding on two products at a time, thereby not only improving the injection molding efficiency, but also improving the injection molding quality.
Description
Technical Field
The utility model relates to an injection mold, in particular to a silica gel injection mold for a handle of a medical instrument.
Background
The existing handles of medical apparatuses (such as needle holding screwdrivers, nail removers, handles and the like) are generally formed by placing metal pieces in an injection mold in advance, then injecting silica gel into the mold, and finally demolding to form the silica gel handles wrapped on the peripheries of the metal pieces.
Disclosure of Invention
The purpose of the utility model is that: the utility model provides a can mould plastics two products simultaneously, not only improved injection molding efficiency, but also can improve the quality of moulding plastics to and improve the medical instrument handle silica gel injection mold of current pincers worker machining efficiency.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: a medical instrument handle silica gel injection mold is characterized in that: comprises a die base, a die top cover, a lower die core seat, an upper die core, a die interface component and a heating rod,
the lower mold core seat is arranged on the mold base, the lower mold core is arranged in the inner cavity of the lower mold core seat, the upper mold core is arranged in the inner cavity of the upper mold core seat, the upper mold core seat and the lower mold core seat are connected in an up-down involution manner, the mold top cover is connected with the upper mold core seat,
the upper mold core is provided with an upper cavity, the lower mold core is provided with a lower cavity, the upper mold core and the lower mold core form an injection molding cavity with double stations after being combined, an injection molding nozzle communicated with the injection molding cavity is arranged on the top cover of the mold,
and heating rods are arranged on the upper mold core and the lower mold core, and a mold interface assembly for adjusting injection molding flash and a mold connecting line of the product is arranged between the upper mold core and the lower mold core.
In the above technical scheme, the mould interface subassembly includes lower locating piece and last locating piece, the both ends of lower mold core lower die cavity are equipped with the lower locating piece that is used for restricting the notes plastic volume respectively, the both ends of the last die cavity of last mold core are equipped with respectively with the last locating piece of corresponding lower locating piece connection, have the perforation of being convenient for hold the metalwork shaft after lower locating piece and the last locating piece cooperation.
In the technical scheme, the upper positioning block is matched with the lower positioning block in a positioning way through the positioning pin.
In the technical scheme, the bottom of the injection nozzle is provided with the injection branch pipes which are respectively communicated with the two injection cavities.
In the above technical scheme, the die base is provided with a plurality of first guide posts which are uniformly arranged and are used for being matched with the lower die core base in a positioning way.
In the above technical scheme, the lower die core seat is provided with a plurality of second guide posts which are uniformly arranged and are used for being matched with the upper die core seat in a positioning way.
In the technical scheme, the upper mold core is provided with the mold core positioning block, and the lower mold core is provided with the positioning groove matched with the mold core positioning block in a positioning way.
In the technical scheme, the lower die core is in positioning connection with the lower die core seat through the lower positioning pin, and the upper die core is in positioning connection with the upper die core seat through the upper positioning pin.
The utility model has the positive effects that: after the medical instrument handle silica gel injection mold is adopted, as the medical instrument handle silica gel injection mold comprises a mold base, a mold top cover, a lower mold core seat, a lower mold core, an upper mold core seat, an upper mold core, a mold interface component and a heating rod,
the lower mold core seat is arranged on the mold base, the lower mold core is arranged in the inner cavity of the lower mold core seat, the upper mold core is arranged in the inner cavity of the upper mold core seat, the upper mold core seat and the lower mold core seat are connected in an up-down involution manner, the mold top cover is connected with the upper mold core seat,
the upper mold core is provided with an upper cavity, the lower mold core is provided with a lower cavity, the upper mold core and the lower mold core form an injection molding cavity with double stations after being combined, an injection molding nozzle communicated with the injection molding cavity is arranged on the top cover of the mold,
heating rods are arranged on the upper mold core and the lower mold core, a mold interface component for adjusting injection molding flash and a mold connecting line of a product is arranged between the upper mold core and the lower mold core,
the utility model has the advantages that the double-station injection molding cavities which are symmetrically arranged are arranged, two products can be simultaneously processed by one injection molding, the boundary of the injection molding part is limited by adjusting the die interface component, the injection molding flash and the die connecting line of the products can be effectively reduced, the requirements of drawing size and technical requirements are met,
the specific injection molding process comprises the following steps:
pre-preparation: firstly, two metal pieces are respectively placed in a lower cavity of a lower mold core, and the injection molding flash and seam of a product are regulated through a mold interface assembly, so that the trimming work of a clamp worker is greatly reduced, the working efficiency and the product qualification rate are improved, the injection molding quality and the injection molding efficiency are also ensured, then the upper mold core is matched with the lower mold core in a positioning way, so that the upper cavity and the lower cavity form an injection molding cavity, the upper mold core seat is connected with the lower mold core seat in a positioning way, the mold top cover is assembled with the upper mold core seat in a positioning way, the positioning matching between all parts of the injection molding mold is ensured, the preparation work before injection molding is finished, and the problems of product deformation, more burrs and more flash and even product damage in the traditional processing mode can be reduced;
injection molding: starting a heating rod to heat the upper die core seat and the lower die core seat, and heating the colloid at the same time for convenience, so as to facilitate the subsequent demolding of the product, and injecting silica gel into an injection molding cavity through an injection nozzle at the moment to finish the handle injection molding of the product;
demolding: after the handle is injection molded, the injection mold is disassembled in sequence, and then the product is demolded.
The utility model can not only carry out injection molding on two products at one time and improve the processing efficiency, but also can avoid the waste of silica gel materials by utilizing the die interface component, adjust the injection molding problems such as injection molding flash of the products, greatly reduce the trimming work of the bench workers and ensure the injection molding quality and injection molding efficiency.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present utility model;
FIG. 2 is a schematic perspective view of the lower die core seat and lower die core of FIG. 1;
FIG. 3 is a schematic perspective view of the upper die core holder and upper die core of FIG. 1 mated with a die top cover;
fig. 4 is a schematic view of a three-dimensional exploded structure of the present utility model.
Detailed Description
The utility model is further illustrated, but not limited, by the following examples in connection with the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, the silica gel injection mold for the handle of the medical apparatus comprises a mold base 1, a mold top cover 2, a lower mold core seat 3, a lower mold core 4, an upper mold core seat 5, an upper mold core 6, a mold interface component 7 and a heating rod 8,
the lower mold core seat 3 is arranged on the mold base 1, the lower mold core 4 is arranged in the inner cavity of the lower mold core seat 3, the upper mold core 6 is arranged in the inner cavity of the upper mold core seat 5, the upper mold core seat 5 and the lower mold core seat 3 are connected in an up-down involution manner, the mold top cover 2 is connected with the upper mold core seat 5,
the upper mold core 6 is provided with an upper cavity 61, the lower mold core 4 is provided with a lower cavity 41, after the upper mold core 6 and the lower mold core 4 are combined, an injection molding cavity with double stations is formed by the upper cavity 61 and the lower cavity 41, the mold top cover 2 is provided with an injection molding nozzle 21 communicated with the injection molding cavity,
the upper mold core 6 and the lower mold core 4 are respectively provided with a heating rod 8, the upper mold core seat 5 and the lower mold core seat 3 are respectively provided with jacks, two groups of heating rods 8 respectively penetrate through the jacks on the corresponding mold core seats and are inserted into the corresponding mold cores to be matched with the heating rod holes of the mold cores, and a mold interface assembly 7 for adjusting product injection molding flash and a mold connecting line is arranged between the upper mold core 6 and the lower mold core 4.
As shown in fig. 2 and 4, in order to facilitate adjusting the injection molding flash of the product, improve the injection molding quality of the product, and reduce the finishing work of the subsequent bench workers, the die interface assembly 7 includes a lower positioning block 71 and an upper positioning block 72, two ends of the lower cavity 41 of the lower die core 4 are respectively provided with a lower positioning block 71 for limiting the injection molding amount, two ends of the upper cavity 61 of the upper die core 6 are respectively provided with an upper positioning block 72 connected with the corresponding lower positioning block 71, and after the lower positioning block 71 and the upper positioning block 72 are matched, a through hole for conveniently accommodating the metal part shaft is formed. When the die is used, firstly, a metal piece is placed in the lower die cavity 41, then, the lower positioning blocks 72 at the two ends of the lower die cavity 41 are adjusted to limit the boundary of an injection handle, the injection flash of a product is reduced, and then, the upper positioning blocks 72 and the lower positioning blocks 71 of the upper die core 6 are matched in a positioning manner so as to meet the drawing size and technical requirements.
Further, as shown in fig. 2 and 4, in order to improve the positioning accuracy of the assembly and to quickly position the assembly, the upper positioning block 72 is in positioning fit with the lower positioning block 71 through the positioning pin 73.
Further, as shown in fig. 3, in order to improve injection efficiency, the injection nozzle can inject silica gel into two cancellation cavities simultaneously, and the bottom of the injection nozzle 21 is provided with injection branch pipes 22 respectively communicated with the two injection cavities 9. The injection nozzle 21 sequentially penetrates through the die top cover 2, the upper die core seat 5 and the upper die core 6 until reaching the lower cavity 41 of the lower die core 4.
Further, as shown in fig. 4, in order to ensure high-precision die assembly and butt joint of the upper and lower dies, the problems of product deformation, more burrs and product damage in the conventional processing mode are reduced, and the molding precision of the product is improved, and the die base 1 is provided with a plurality of first guide posts 91 which are uniformly arranged and are used for positioning and matching with the lower die core base 3. The lower die core seat 3 is provided with a plurality of second guide posts 92 which are uniformly arranged and are used for being matched with the upper die core seat 5 in a positioning way.
Further, as shown in fig. 2 and 3, in order to ensure quick positioning and matching between the upper mold core and the lower mold core, the upper mold core 6 is provided with a mold core positioning block 62, and the lower mold core 4 is provided with a positioning slot 42 that is in positioning and matching with the mold core positioning block 62.
Further, in order to further improve the matching precision, the lower mold core 4 is in positioning connection with the lower mold core seat 3 through a lower positioning pin, and the upper mold core 6 is in positioning connection with the upper mold core seat 5 through an upper positioning pin.
The injection molding process comprises the following specific steps:
pre-preparation: firstly, two metal pieces 10 are respectively placed in a lower cavity 41 of a lower mold core 4, the boundary of an injection handle is defined by adjusting lower positioning blocks 72 at two ends of the lower cavity 41 of a mold interface assembly 7, the injection flash of a product is reduced, then, an upper positioning block 72 of an upper mold core 6 is matched with a lower positioning block 71 in a positioning way, so that the trimming work of a bench worker is greatly reduced, the working efficiency and the product qualification rate are improved, the injection quality and the injection efficiency are also ensured, then, the upper mold core 6 is matched with the lower mold core 4 in a positioning way, so that an injection cavity 9 is formed by the upper cavity 61 and the lower cavity 41, an upper mold core seat 6 is connected with a lower mold core seat 3 in a positioning way through a guide pillar, the mold top cover 2 is assembled with the upper mold core seat 6 in a positioning way, the positioning cooperation between all parts of the injection mold is ensured, the preparation work before the injection molding is completed is finished, and the problems of product deformation, more burrs and more flash and even product damage in the traditional processing mode can be reduced;
injection molding: starting the heating rods 8 on the upper mold core seat 5 and the lower mold core seat 3, heating the upper mold core seat 6 and the lower mold core seat 3, and simultaneously, facilitating the subsequent demolding of the product for the convenience of colloid heating, and at the moment, injecting silica gel into the injection molding cavity 9 through the injection nozzle 2 and the injection molding branch pipe 22 to complete the handle injection molding of the product;
demolding: after the handle is injection molded, the injection mold is disassembled in sequence, and then the product is demolded.
The utility model has the advantages that the double-station injection molding cavities which are symmetrically arranged are arranged, so that the two products can be injected at one time, the processing efficiency is improved, the boundary of an injection molding part is limited by the die interface assembly, the waste of silica gel materials can be avoided, the injection molding problems such as injection molding flash of the products are regulated, the trimming work of a bench worker is greatly reduced, the injection molding quality and the injection molding efficiency are ensured, and the injection molding flash of the products and the die connecting line can be effectively reduced by regulating the die interface assembly, so that the drawing size requirement and the technical requirement are met.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A medical instrument handle silica gel injection mold which characterized in that: comprises a die base (1), a die top cover (2), a lower die core seat (3), a lower die core (4), an upper die core seat (5), an upper die core (6), a die interface component (7) and a heating rod (8),
the lower die core seat (3) is arranged on the die base (1), the lower die core (4) is arranged in the inner cavity of the lower die core seat (3), the upper die core (6) is arranged in the inner cavity of the upper die core seat (5), the upper die core seat (5) and the lower die core seat (3) are connected in an up-down involution manner, the die top cover (2) is connected with the upper die core seat (5),
the upper mold core (6) is provided with an upper mold cavity (61), the lower mold core (4) is provided with a lower mold cavity (41), after the upper mold core (6) is combined with the lower mold core (4), the upper mold cavity (61) and the lower mold cavity (41) form an injection molding cavity with double stations, an injection molding nozzle (21) communicated with the injection molding cavity is arranged on the mold top cover (2),
the upper mold core (6) and the lower mold core (4) are respectively provided with a heating rod (8), and a mold interface assembly (7) for adjusting injection molding flash and a mold connecting line of a product is arranged between the upper mold core (6) and the lower mold core (4).
2. The medical device handle silicone injection mold of claim 1, wherein: the die interface assembly (7) comprises a lower positioning block (71) and an upper positioning block (72), wherein lower positioning blocks (71) used for limiting plastic injection quantity are respectively arranged at two ends of a lower die cavity (41) of the lower die core (4), upper positioning blocks (72) connected with the corresponding lower positioning blocks (71) are respectively arranged at two ends of an upper die cavity (61) of the upper die core (6), and through holes for accommodating metal rod bodies are formed after the lower positioning blocks (71) and the upper positioning blocks (72) are matched.
3. The medical device handle silicone injection mold of claim 2, wherein: the upper positioning block (72) is matched with the lower positioning block (71) in a positioning way through a positioning pin (73).
4. The medical device handle silicone injection mold of claim 1, wherein: the bottom of the injection nozzle (21) is provided with an injection molding branch pipe (22) which is respectively communicated with the two injection molding cavities.
5. The medical device handle silicone injection mold of claim 1, wherein: the die base (1) is provided with a plurality of first guide posts (91) which are uniformly arranged and are used for being matched with the lower die core base (3) in a positioning mode.
6. The medical device handle silicone injection mold of claim 1, wherein: the lower die core seat (3) is provided with a plurality of second guide posts (92) which are uniformly arranged and are used for being matched with the upper die core seat (5) in a positioning way.
7. The medical device handle silicone injection mold of claim 1, wherein: the upper mold core (6) is provided with a mold core positioning block (62), and the lower mold core (4) is provided with a positioning groove (42) matched with the mold core positioning block (62) in a positioning way.
8. The medical device handle silicone injection mold of claim 1, wherein: the lower mold core (4) is connected with the lower mold core seat (3) in a positioning way through a lower positioning pin, and the upper mold core (6) is connected with the upper mold core seat (5) in a positioning way through an upper positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321287155.9U CN219855764U (en) | 2023-05-24 | 2023-05-24 | Medical instrument handle silica gel injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321287155.9U CN219855764U (en) | 2023-05-24 | 2023-05-24 | Medical instrument handle silica gel injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219855764U true CN219855764U (en) | 2023-10-20 |
Family
ID=88324893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321287155.9U Active CN219855764U (en) | 2023-05-24 | 2023-05-24 | Medical instrument handle silica gel injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219855764U (en) |
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2023
- 2023-05-24 CN CN202321287155.9U patent/CN219855764U/en active Active
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