CN216658784U - Automatic injection mold of dehydration mouth - Google Patents
Automatic injection mold of dehydration mouth Download PDFInfo
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- CN216658784U CN216658784U CN202122743404.8U CN202122743404U CN216658784U CN 216658784 U CN216658784 U CN 216658784U CN 202122743404 U CN202122743404 U CN 202122743404U CN 216658784 U CN216658784 U CN 216658784U
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Abstract
The utility model provides an injection mold for an automatic dehydration port, which comprises an upper mold component, a lower mold component and an ejection component, wherein the middle part of a mold cavity is provided with a water gap groove communicated with the mold cavity, and the bottom of the water gap groove is of a back-off structure; the ejection assembly comprises a push plate, a product thimble and a water gap thimble, the lower end of the product thimble is fixedly connected with the push plate, and the upper end of the product thimble extends to the bottom of the die cavity; the water gap thimble comprises a first round rod part, a limiting part connected to the lower end of the first round rod part, and a second round rod part connected to the lower end of the limiting part, the upper end of the first round rod part extends to the bottom of the water gap groove, an inner hole for the limiting part to slide along the vertical direction is formed in the push plate, and a time delay clearance area is formed between the bottom of the limiting part and the bottom of the inner hole. The injection mold disclosed by the utility model can realize automatic separation of an injection product and a water gap during material ejection, subsequent manual water gap cutting is not needed, and the production efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of molds, in particular to an injection mold with an automatic dehydration opening.
Background
The injection molding product is a common daily product, and is widely applied to the fields of household products, medical equipment, building materials, sports equipment and the like due to the advantages of light weight, high strength, good durability, strong assembly and the like. In the manufacturing process of injection molding products, plastic materials in a molten state are generally uniformly stirred by a screw extruder at a certain temperature, then injected into an injection mold, molded in a cavity of the injection mold, and cooled and solidified to obtain the molded injection molding products. The injection molding product can remain a water gap after injection molding, generally needs a manual dehydration port, and has low production efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides the injection mold with the automatic dehydration port, which can realize the automatic separation of an injection product and a water gap during material ejection, does not need a subsequent manual dehydration port and improves the production efficiency.
In order to achieve the purpose, the utility model is solved by the following technical scheme:
an injection mold of an automatic dehydration port comprises an upper mold assembly, a lower mold assembly and an ejection assembly, wherein the upper mold assembly comprises an upper mold core, a plurality of injection molding runners are arranged on the inner side of the upper mold core, the lower mold assembly comprises a lower mold core, and a plurality of mold cavities corresponding to the injection molding runners are formed in the lower mold core;
the middle part of the die cavity is provided with a water gap groove communicated with the die cavity, and the bottom of the water gap groove is of an inverted buckle structure;
the ejection assembly comprises a push plate, a product thimble and a water gap thimble, the lower end of the product thimble is fixedly connected with the push plate, and the upper end of the product thimble extends to the bottom of the die cavity;
the water gap thimble comprises a first round rod part, a limiting part connected to the lower end of the first round rod part, and a second round rod part connected to the lower end of the limiting part, the upper end of the first round rod part extends to the bottom of the water gap groove, an inner hole for the limiting part to slide along the vertical direction is formed in the push plate, and a time delay clearance area is formed between the bottom of the limiting part and the bottom of the inner hole.
Specifically, the height of the delay clearance area along the vertical direction is 2-4 mm.
Specifically, the upper die assembly further comprises an upper die seat plate, an upper die base plate and an upper die pressing plate, wherein a first groove is formed in the lower end of the upper die pressing plate, the upper die core is fixed to the inner side of the first groove, and an injection molding opening communicated with the injection molding flow channel is formed in the upper end of the upper die seat plate.
Specifically, last clamp plate one side is equipped with first water inlet, first delivery port, be connected with first condenser tube between first water inlet, the first delivery port, first condenser tube extends to go up the mould benevolence inboard.
Specifically, the lower die assembly further comprises a lower die seat plate, a lower die base plate and a lower die pressing plate, wherein a second groove is formed in the lower end of the lower die pressing plate, the lower die core is fixed to the inner side of the second groove, a cavity is formed in the inner side of the lower die base plate, and the push plate is located on the inner side of the cavity.
Specifically, a second water inlet and a second water outlet are formed in one side of the lower die pressing plate, a second cooling water pipe is connected between the second water inlet and the second water outlet, and the second cooling water pipe extends to the inner side of the lower die core.
The utility model has the beneficial effects that:
according to the injection mold, the water gap ejector pins are designed into a delayed ejection structure, after the mold is opened, the injection product in the mold cavity is ejected out by the product ejector pins in the push plate push-up process, the water gap waste material in the water gap groove is not driven by the injection product to move upwards due to the fact that the bottom of the water gap groove is of the inverted buckle structure, the water gap position of the injection product is cut off, the water gap ejector pins 33 are driven to move upwards along with the continuous upward movement of the push plate, the water gap ejector pins eject the water gap waste material in the water gap groove, and therefore the dehydration opening action can be automatically completed in the material ejection process, the follow-up manual dehydration opening is not needed, the structure is simple, and the processing efficiency is improved.
Drawings
Fig. 1 is a plan view of an injection molded product.
Fig. 2 is a cross-sectional view taken along the plane B-B in fig. 1.
Fig. 3 is a schematic structural view of an injection mold of an automatic dehydration gate according to the present invention.
Fig. 4 is a schematic structural view of the lower die assembly.
Fig. 5 is a plan view of an injection mold for an automatic dehydration gate of the present invention.
Fig. 6 is a cross-sectional view taken along the plane a-a in fig. 5.
Fig. 7 is an enlarged view of a portion C in fig. 6.
Fig. 8 is an enlarged view of a portion D in fig. 6.
The reference signs are: the mold comprises an upper mold component 1, an upper mold core 11, an injection molding runner 111, an upper mold seat plate 12, an upper mold base plate 13, an upper mold pressing plate 14, a lower mold component 2, a lower mold core 21, a mold cavity 211, a water gap groove 212, a lower mold seat plate 22, a lower mold base plate 23, a lower mold pressing plate 24, an ejection component 3, a push plate 31, an inner hole 311, a delay clearance avoiding area 312, a product ejector pin 32, a water gap ejector pin 33, a first round rod part 331, a limiting part 332, a second round rod part 333, an injection molding port 4, a first water inlet 51, a first water outlet 52, a first cooling water pipe 53, a second water inlet 61, a second water outlet 62, a second cooling water pipe 63, an injection molding product 7, a water gap waste 71 and a back-off part 711.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-8:
an injection mold for an automatic dehydration port comprises an upper mold component 1, a lower mold component 2 and an ejection component 3, wherein the upper mold component 1 comprises an upper mold core 11, a plurality of injection molding runners 111 are arranged on the inner side of the upper mold core 11, the lower mold component 2 comprises a lower mold core 21, and a plurality of mold cavities 211 corresponding to the injection molding runners 111 are formed in the lower mold core 21;
the middle part of the die cavity 211 is provided with a water gap groove 212 communicated with the die cavity 211, and the bottom of the water gap groove 212 is of a reverse buckle structure;
the ejection assembly 3 comprises a push plate 31, a product thimble 32 and a water gap thimble 33, the lower end of the product thimble 32 is fixedly connected with the push plate 31, and the upper end of the product thimble 32 extends to the bottom of the mold cavity 211;
the nozzle thimble 33 includes a first round rod 331, a limiting portion 332 connected to a lower end of the first round rod 331, and a second round rod 333 connected to a lower end of the limiting portion 332, an upper end of the first round rod 331 extends to a bottom of the nozzle groove 212, an inner hole 311 for the limiting portion 332 to slide along a vertical direction is provided in the push plate 31, and a delay clearance area 312 is formed between a bottom of the limiting portion 332 and a bottom of the inner hole 311.
Preferably, the height of the delay clearance area 312 in the vertical direction is 3 mm.
Preferably, go up mould subassembly 1 and still include punch holder board 12, last mould backing plate 13, last clamp plate 14, and the lower extreme of last clamp plate 14 is equipped with first recess, goes up mould benevolence 11 and fixes at first recess inboard, goes up punch holder board 12 upper end and is equipped with the mouth 4 of moulding plastics with moulding plastics runner 111 intercommunication.
Preferably, one side of the upper mold platen 14 is provided with a first water inlet 51 and a first water outlet 52, a first cooling water pipe 53 is connected between the first water inlet 51 and the first water outlet 52, the first cooling water pipe 53 extends to the inner side of the upper mold core 11, and after the injection molding is completed, cold water can be introduced into the first water inlet 51 and flows through the first cooling water pipe 53, so that the heat inside the cold water is taken out, and the cooling speed of the injection molded product 7 is increased.
Preferably, the lower die assembly 2 further comprises a lower die base plate 22, a lower die backing plate 23 and a lower die pressing plate 24, wherein a second groove is formed in the lower end of the lower die pressing plate 24, the lower die core 21 is fixed to the inner side of the second groove, a cavity is formed in the inner side of the lower die backing plate 23, and the push plate 31 is located on the inner side of the cavity.
Preferably, a second water inlet 61 and a second water outlet 62 are formed in one side of the lower mold pressing plate 24, a second cooling water pipe 63 is connected between the second water inlet 61 and the second water outlet 62, the second cooling water pipe 63 extends to the inner side of the lower mold core 21, after the injection molding is completed, cold water can be introduced into the second water inlet 61, and the cold water carries out the heat inside through the circulation of the second cooling water pipe 63, so that the cooling speed of the injection molded product 7 is increased.
The injection molding process is as follows:
after the die assembly and the injection molding are carried out, an injection molding product 7 is formed in the die cavity 211, a nozzle waste 71 is formed in the nozzle groove 212, and a reverse-buckling part 711 is formed at the lower end of the nozzle waste 71 because the bottom of the nozzle groove 212 is in a reverse-buckling structure;
after the mold is opened, the driving device is used for pushing the push plate 31 to move upwards, in the process that the push plate 31 moves upwards, because the lower end of the product thimble 32 is fixedly connected with the push plate 31, and the upper end of the product thimble 32 extends to the bottom of the mold cavity 211, the product thimble 32 firstly ejects the injection product 7 formed in the mold cavity 211, at the moment, because of the structural characteristics of the inverted buckle part 711, the nozzle waste 71 in the nozzle groove 212 in the process that the injection product 7 is pushed is not driven to move upwards by the injection product 7, and because the delayed evacuation area 312 is added, the nozzle thimble 33 has the delayed ejection function, so the nozzle waste 71 is not ejected by the nozzle thimble 33 at this stage, the injection product 7 and the nozzle waste 71 are dislocated, and the position of a nozzle is cut off;
after the push plate 31 moves upwards by 3mm in the vertical direction, the limiting portion 332 of the water gap ejector pin 33 is in contact with the bottom of the inner side of the inner hole 311, the water gap ejector pin 33 is driven by the push plate 31 to move upwards, and the water gap waste 71 in the water gap groove 212 is ejected out by the water gap ejector pin 33, so that the action of a dewatering opening can be automatically completed in the material ejecting process, the follow-up manual dewatering opening is not needed, the structure is simple, and the processing efficiency is improved.
The above examples only show one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides an automatic dehydration mouth's injection mold, includes mould subassembly (1), lower mould subassembly (2), ejecting subassembly (3), it includes mould benevolence (11) to go up mould subassembly (1), it is equipped with a plurality of runners (111) of moulding plastics to go up mould benevolence (11) inboard, lower mould subassembly (2) are including lower mould benevolence (21), be formed with on lower mould benevolence (21) a plurality ofly with mould plastics runner (111) position corresponding die cavity (211), its characterized in that:
the middle part of the die cavity (211) is provided with a water gap groove (212) communicated with the die cavity (211), and the bottom of the water gap groove (212) is of an inverted buckle structure;
the ejection assembly (3) comprises a push plate (31), a product thimble (32) and a water gap thimble (33), the lower end of the product thimble (32) is fixedly connected with the push plate (31), and the upper end of the product thimble (32) extends to the bottom of the mold cavity (211);
the water gap thimble (33) comprises a first round rod part (331), a limiting part (332) connected to the lower end of the first round rod part (331), and a second round rod part (333) connected to the lower end of the limiting part (332), the upper end of the first round rod part (331) extends to the bottom of the water gap groove (212), an inner hole (311) for the limiting part (332) to slide along the vertical direction is formed in the push plate (31), and a delayed clearance avoiding area (312) is formed between the bottom of the limiting part (332) and the bottom of the inner hole (311).
2. The injection mold of the automatic dewatering opening according to claim 1, wherein the height of the delayed clearance area (312) in the vertical direction is 2-4 mm.
3. The injection mold for the automatic dewatering opening according to claim 1, wherein the upper mold assembly (1) further comprises an upper mold base plate (12), an upper mold base plate (13) and an upper mold pressing plate (14), a first groove is formed at the lower end of the upper mold pressing plate (14), the upper mold core (11) is fixed inside the first groove, and the injection opening (4) communicated with the injection runner (111) is formed at the upper end of the upper mold base plate (12).
4. The injection mold of the automatic dewatering port according to claim 3, wherein a first water inlet (51) and a first water outlet (52) are formed in one side of the upper mold platen (14), a first cooling water pipe (53) is connected between the first water inlet (51) and the first water outlet (52), and the first cooling water pipe (53) extends to the inner side of the upper mold core (11).
5. The injection mold for the automatic dewatering opening according to claim 1, wherein the lower mold assembly (2) further comprises a lower mold base plate (22), a lower mold backing plate (23) and a lower mold pressing plate (24), a second groove is formed in the lower end of the lower mold pressing plate (24), the lower mold core (21) is fixed inside the second groove, a cavity is formed inside the lower mold backing plate (23), and the push plate (31) is located inside the cavity.
6. The injection mold of the automatic dewatering port according to claim 5, wherein a second water inlet (61) and a second water outlet (62) are formed in one side of the lower mold platen (24), a second cooling water pipe (63) is connected between the second water inlet (61) and the second water outlet (62), and the second cooling water pipe (63) extends to the inner side of the lower mold core (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122743404.8U CN216658784U (en) | 2021-11-10 | 2021-11-10 | Automatic injection mold of dehydration mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122743404.8U CN216658784U (en) | 2021-11-10 | 2021-11-10 | Automatic injection mold of dehydration mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216658784U true CN216658784U (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122743404.8U Active CN216658784U (en) | 2021-11-10 | 2021-11-10 | Automatic injection mold of dehydration mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216658784U (en) |
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2021
- 2021-11-10 CN CN202122743404.8U patent/CN216658784U/en active Active
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