CN220179982U - Double-shot injection mold - Google Patents
Double-shot injection mold Download PDFInfo
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- CN220179982U CN220179982U CN202320903016.8U CN202320903016U CN220179982U CN 220179982 U CN220179982 U CN 220179982U CN 202320903016 U CN202320903016 U CN 202320903016U CN 220179982 U CN220179982 U CN 220179982U
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- ejector pin
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- 238000002347 injection Methods 0.000 title claims abstract description 43
- 239000007924 injection Substances 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a double-shot injection mold, which belongs to the technical field of injection molds and comprises a fixed mold table and a movable mold table assembled below the fixed mold table, wherein a fixed mold core is arranged at the bottom end axle center of the fixed mold table, fixed blocks are arranged at two sides of the fixed mold core, a movable mold core matched with the fixed mold core is arranged at the top end axle center of the movable mold table, movable inserts are arranged on the surface of the movable mold core, mold legs are arranged at two sides of the bottom end of the movable mold table, a return spring is arranged in an inner cavity of the mold legs, and a return plate connected with the inner cavity of the mold in a sliding manner is arranged at the top end of the return spring; according to the utility model, when the die is closed, the movable insert is pulled by the movable rod and the return spring to retreat towards the direction of the movable die table, so that the die can be prevented from being damaged by pressing, and the movable insert is pushed to move towards the direction of the top die and generate a jacking force along with elastic return of the return spring, so that the die closing between the movable die table and the fixed die table is more compact.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a double-shot injection mold.
Background
In the field of moulds, injection moulds belong to a large plate, the types of injection products are rich, mass production is convenient, and many injection moulds are closely related to our life, while in the field of injection moulds, the double injection mould is used as a unique injection moulding method, can finish products with special purposes produced by matching different colors or materials, meets special requirements, and can form more types of appearances, so that the moulded products no longer have single appearance.
When the existing double-shot injection mold performs injection molding, the movable mold is close to the fixed mold, so that the movable insert is pressed against the fixed mold core to extrude the movable insert, if the extrusion force is too large, the mold is crushed to affect normal mold closing operation, the existing injection molding operation cannot ensure compact mold closing, and the molding quality of products can be reduced.
Disclosure of Invention
The utility model aims to provide a double-shot injection mold, which solves the defects in the prior art.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the utility model provides a double-shot injection mold, which comprises a fixed mold table and a movable mold table assembled below the fixed mold table, wherein a fixed mold core is arranged at the bottom end axis of the fixed mold table, fixed blocks are arranged on two sides of the fixed mold core, a movable mold core matched with the fixed mold core is arranged at the top end axis of the movable mold table, a movable insert is arranged on the surface of the movable mold core, mold legs are arranged on two sides of the bottom end of the movable mold table, a reset plate connected with the mold inner cavity in a sliding manner is arranged at the top end of the reset spring, a reset rod capable of penetrating through the movable mold table is arranged at the top end of the reset plate, the top end of the reset rod is abutted against the fixed block, a movable rod is arranged on the reset plate, and the top end of the movable rod can penetrate through the movable mold core to be connected with the movable insert.
Preferably, limit grooves are formed in the bottoms of the two sides of the fixed die table, guide sleeves are arranged on the two sides of the bottom end of the fixed die table, limit blocks matched with the limit grooves are arranged on the tops of the two sides of the movable die table, and guide posts connected with the guide sleeves in a sliding mode are arranged on the two sides of the top end of the movable die table.
Preferably, positioning blocks are arranged around the movable die core, and positioning sleeves which are connected with the positioning blocks in a clamping manner are arranged around the positioning die core.
Preferably, an injection hole is formed in one side surface of the fixed die table, and the injection hole is connected with a fixed die core through an injection channel formed in the inner cavity of the fixed die table.
Preferably, an upper ejector pin plate is arranged between the die legs, a lower ejector pin plate is arranged at the bottom end of the upper ejector pin plate, an ejector pin is arranged in the middle of the top end of the upper ejector pin plate, an ejector pin hole matched with the ejector pin is formed in the movable die core, return pins are arranged at the periphery of the top end of the upper ejector pin plate, and a return spring connected with the movable die table is arranged outside the return pins.
Preferably, the bottom of mould foot and lower thimble board is connected with down the shrouding jointly, down the inside axle center department of shrouding runs through and has seted up the backlog hole.
Compared with the prior art, the above technical scheme has the following beneficial effects:
the utility model provides a double-shot injection mold, which is characterized in that on the basis of the existing traditional double-shot mold structure, the structure of two movable molds of the double-shot mold is changed, when the movable mold insert is closed, the movable mold insert is pulled by a movable rod and a return spring to move back towards the movable mold table, so that the movable mold insert can be avoided from being crushed, and the movable mold insert is pushed to move towards the top mold direction and generate a jacking force along with the elastic return of the return spring, so that the movable mold table and the fixed mold table are more compact when the movable mold table and the fixed mold table are closed, the quality of products is improved, and the reject ratio of the products is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the internal structure of a front view of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the movable die table of the utility model;
FIG. 3 is an enlarged schematic view of the utility model at A in FIG. 2;
FIG. 4 is a schematic view of the overall structure of the stationary platen of the present utility model;
FIG. 5 is a schematic perspective view of the present utility model;
figure 6 is a schematic isometric view of the present utility model.
In the figure:
1. a fixed die table; 101. fixing the die core; 102. a fixed block; 103. a limit groove; 104. guide sleeve; 105. a positioning sleeve; 106. injection molding holes; 107. an injection molding channel;
2. a movable die table; 201. a movable mold core; 202. a movable insert; 203. a limiting block; 204. a guide post; 205. a positioning block; 206. ejection pin holes;
3. a mold foot; 301. a return spring; 302. a reset plate; 303. a reset lever; 304. a movable rod;
401. an upper ejector plate; 402. a lower ejector plate; 403. jacking up the needle; 404. a return pin; 405. a return spring;
5. a lower sealing plate; 501. and (5) backlog the hole.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above-described drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "install," "set," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-6 of the accompanying drawings, the utility model provides a double-shot injection mold, which comprises a fixed mold table 1 and a movable mold table 2 assembled below the fixed mold table 1, wherein a fixed mold core 101 is arranged at the bottom end axle center of the fixed mold table 1, fixed blocks 102 are arranged at two sides of the fixed mold core 101, a movable mold core 201 matched with the fixed mold core 101 is arranged at the top end axle center of the movable mold table 2, movable inserts 202 are arranged on the surface of the movable mold core 201, mold legs 3 are arranged at two sides of the bottom end of the movable mold table 2, a return spring 301 is arranged in an inner cavity of the mold legs 3, a return plate 302 which is slidably connected with the inner cavity of the mold is arranged at the top end of the return spring 301, a return rod 303 which can penetrate through the movable mold table 2 is arranged at the top end of the return plate 302 and is abutted against the fixed blocks 102, a movable rod 304 is arranged on the return plate 302, when the movable die table 2 is close to the fixed die table 1 to perform die assembly, the fixed block 102 presses the reciprocating rod 303, the reset plate 302 drives the movable insert 202 through the reset spring 301 to enable the movable insert 202 to retract towards the movable die table 2, the first injection product is avoided when the second injection product is injected, the first injection product is prevented from being crushed or the die is prevented from being crushed, the reset spring 301 ensures that the movable insert 202 generates jacking force towards the fixed die table 1 when the die assembly is performed, the die assembly is more compact, the traditional double injection die structure is broken through, the two movable dies of the traditional double injection die are changed to be identical, the problem that the secondary encapsulation can only be performed under the influence of the product structure is solved, the quality of the product is improved, and the reject ratio of the product is reduced.
As a preferred scheme of the present utility model, in order to avoid the offset of the moving die table 2 and the fixed die table 1 in the die closing process, as shown in fig. 3 and 4, it is preferable that the bottoms of the two sides of the fixed die table 1 are provided with limit grooves 103, the two sides of the bottom end of the fixed die table 1 are provided with guide sleeves 104, the tops of the two sides of the moving die table 2 are provided with limit blocks 203 matched with the limit grooves 103, the two sides of the top end of the moving die table 2 are provided with guide posts 204 slidably connected with the guide sleeves 104, the guide posts 204 slide along the guide sleeves 104 when the die closing process is performed, and the limit blocks 203 can be inserted into the corresponding limit grooves 103 to perform the limit operation when the die closing process is completed.
As a preferred scheme of the present utility model, in order to ensure accurate injection molding of the injection mold, as shown in fig. 3 and 4, preferably, a positioning block 205 is disposed around the movable mold core 201, a positioning sleeve 105 engaged with the positioning block 205 is disposed around the positioning mold core, and accurate positioning of injection molding can be achieved by inserting the positioning block 205 on the movable mold core 201 into the positioning sleeve 105 on the corresponding fixed mold core 101.
Specifically, as shown in fig. 1, an injection hole 106 is formed in one side surface of the fixed mold table 1, the injection hole 106 is connected with the fixed mold core 101 through an injection passage 107 formed in an inner cavity of the fixed mold table 1, injection raw materials are injected through the injection hole 106 before mold closing is performed, and the injection raw materials flow into a space between the fixed mold core 101 and the movable mold core 201 along the injection passage 107 so as to perform subsequent injection molding work.
As a preferred scheme of the utility model, in order to solve the problem that a molded product is difficult to take out in a mold cavity in the prior art, as shown in fig. 2, preferably, an upper ejector pin plate 401 is arranged between mold legs 3, a lower ejector pin plate 402 is arranged at the bottom end of the upper ejector pin plate 401, an ejector pin 403 is arranged in the middle of the top end of the upper ejector pin plate 401, an ejector pin hole 206 matched with the ejector pin 403 is arranged in the movable mold core 201, return pins 404 are arranged at the periphery of the top end of the upper ejector pin plate 401, return springs 405 connected with the movable mold platform 2 are arranged outside the return pins 404, and the lower ejector pin plate 402 can be pushed by external force, so that the ejector pin 403 stretches into the movable mold core 201 from the ejector pin hole 206 to eject the product, and the ejector pin 403 and the lower ejector pin plate 402 can be automatically reset through the return pins 404 and the return springs 405.
Specifically, as shown in fig. 6, the bottom ends of the mold legs 3 and the lower ejector plate 402 are connected together with a lower sealing plate 5, a backlog hole 501 is formed in the inner axis of the lower sealing plate 5 in a penetrating manner, the lower ejector plate 402 is pushed by an external tool through the extrusion hole, so that the lower ejector plate 402 moves together with the ejector pins 403, and the ejector pins 403 extend into the movable mold core 201 along the ejector pin holes 206 to push the molded product out of the mold.
Working principle:
referring to fig. 1-6 of the drawings in the specification, a positioning ring is externally arranged on a fixed die table 1, the die is integrally arranged on an injection molding machine, the injection molding machine controls a movable die table 2 to slide along a guide pillar 204 to be close to the fixed die table 1, raw materials are injected through an injection hole 106 when the movable die table 2 and the fixed die table 1 are clamped, the raw materials flow into a space between a fixed die core 101 and a movable die core 201 along an injection passage 107 for injection molding, meanwhile, a movable insert 202 moves towards the movable die table under the pushing of a movable rod 304 and the elastic expansion and contraction action of a return spring 301 to avoid crushing the die, then moves towards the fixed die direction to jack the die, so that the die is more compact, after the die is clamped, an external driving component such as a hydraulic cylinder stretches into a pressure hole 501, a jack needle plate 402 is jacked, a jack needle 403 stretches into the movable die core 201 along an ejector needle, a molded product on the movable die core 201 is ejected from the die, and the procedure is repeated for injection molding production.
The foregoing is only illustrative of the preferred embodiments of the present utility model, and is not intended to be exhaustive or to be construed as limiting the utility model to the precise forms disclosed. It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that the utility model is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a bijection injection mold, includes cover half platform (1) and assembles movable mould platform (2) in its below, its characterized in that, the bottom axle center department of cover half platform (1) is provided with cover half mould benevolence (101), the both sides of cover half mould benevolence (101) are provided with fixed block (102), the top axle center department of movable mould platform (2) is provided with movable mould benevolence (201) with cover half mould benevolence (101) looks adaptation, the surface of movable mould benevolence (201) is provided with movable insert (202), the bottom both sides of movable mould platform (2) are provided with mould foot (3), the inner chamber of mould foot (3) is provided with reset spring (301), the top of reset spring (301) is provided with reset plate (302) that link to each other with mould inner chamber slip, reset plate (302) top sets up reset rod (303) that can run through movable mould platform (2), reset rod (303) top and fixed block (102) looks butt, be provided with movable insert (304) on reset plate (302), movable rod (202) can run through movable mould benevolence (201).
2. A two-shot injection mold according to claim 1, wherein: limiting grooves (103) are formed in the bottoms of the two sides of the fixed die table (1), guide sleeves (104) are arranged on the two sides of the bottom end of the fixed die table (1), limiting blocks (203) matched with the limiting grooves (103) are arranged on the tops of the two sides of the movable die table (2), and guide posts (204) connected with the guide sleeves (104) in a sliding mode are arranged on the two sides of the top end of the movable die table (2).
3. A two-shot injection mold according to claim 1, wherein: the movable die core (201) is provided with a positioning block (205) around, and the fixed die core (101) is provided with a positioning sleeve (105) which is clamped and connected with the positioning block (205) around.
4. A two-shot injection mold according to claim 1, wherein: an injection hole (106) is formed in one side surface of the fixed die table (1), and the injection hole (106) is connected with the fixed die core (101) through an injection channel (107) formed in the inner cavity of the fixed die table (1).
5. A two-shot injection mold according to claim 1, wherein: an upper ejector pin plate (401) is arranged between the die pins (3), a lower ejector pin plate (402) is arranged at the bottom end of the upper ejector pin plate (401), an ejector pin (403) is arranged in the middle of the top end of the upper ejector pin plate (401), an ejector pin hole (206) matched with the ejector pin (403) is formed in the movable die core (201), return pins (404) are arranged at the periphery of the top end of the upper ejector pin plate (401), and return springs (405) connected with the movable die table (2) are arranged outside the return pins (404).
6. A two-shot injection mold according to claim 1, wherein: the die leg (3) is connected with a lower sealing plate (5) together with the bottom end of the lower thimble plate (402), and a backlog hole (501) is formed in the inner axis of the lower sealing plate (5) in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320903016.8U CN220179982U (en) | 2023-04-20 | 2023-04-20 | Double-shot injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320903016.8U CN220179982U (en) | 2023-04-20 | 2023-04-20 | Double-shot injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220179982U true CN220179982U (en) | 2023-12-15 |
Family
ID=89115806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320903016.8U Active CN220179982U (en) | 2023-04-20 | 2023-04-20 | Double-shot injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220179982U (en) |
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2023
- 2023-04-20 CN CN202320903016.8U patent/CN220179982U/en active Active
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