CN211591109U - Precise injection mold with safety protection function - Google Patents
Precise injection mold with safety protection function Download PDFInfo
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- CN211591109U CN211591109U CN201922148406.5U CN201922148406U CN211591109U CN 211591109 U CN211591109 U CN 211591109U CN 201922148406 U CN201922148406 U CN 201922148406U CN 211591109 U CN211591109 U CN 211591109U
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- sliding block
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Abstract
The utility model provides a precise injection mold with safety protection function, which can improve the production precision and quality of injection products by forming a cavity for injection molding of complex products through the cooperation among a first insert, a lower mold core, an upper mold core, a second slide block, a third slide block and a second insert; the insertion groove is formed below the first sliding block, the anti-collision ejector pin is arranged below the insertion groove, and the insertion groove is matched with the anti-collision ejector pin in the die opening and closing process, so that the phenomenon that the sliding block collides with the ejector pin is effectively avoided, the die is protected from being damaged, and the service life of the die is prolonged.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to an accurate injection mold with safety protection function.
Background
The mold is an indispensable important tool in injection molding, and the injection molding is a processing method for injecting hot-melt plastic materials into a closed cavity with a required shape in the mold at a high speed, opening the mold to eject a solidified plastic product after the plastic materials are cooled and solidified, so as to obtain a molded product. The injection molding processing method has the characteristics of low molding cost, short molding period, simple molding process, easiness in molding of plastic products with complex shapes and the like, so that the injection molding processing method is widely applied to the field of plastic products.
In recent years, with the rapid development of injection molding machines and the improvement of requirements of people on functions, quality and appearance of injection molded products, the design and manufacture of injection molds continuously face new requirements and challenges, how to ensure that the molds have long service life and less maintenance, the mold structure is mechanized and fully-automatic in production, the labor cost is reduced, the working efficiency is improved, and the design is particularly critical. At present, for a product with a complex structure, the production steps are complex, the production precision and the production quality of the product are difficult to guarantee, meanwhile, the situation that the ejector pin is not returned in place and the slide block hits the ejector pin easily occurs, and therefore a precision injection mold which can improve the production precision and the production quality of the product and has a protection function is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the production steps of the product with a complex structure in the prior art are complicated, the production precision and the production quality are difficult to guarantee, and the shortcoming that the thimble cannot roll back the slider to hit the thimble phenomenon appears easily, and the precision injection mold with the safety protection function is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a precision injection mold with a safety protection function comprises an upper mold component, a lower mold component, a sliding component and an ejection component. The upper die assembly comprises an upper die core and a nozzle; the lower die assembly comprises a lower die core; the sliding assembly comprises a first sliding group, a second sliding group, a third sliding group and a fourth sliding group, the first sliding group and the second sliding group are respectively arranged on two opposite sides of the lower die core, the third sliding group and the fourth sliding group are respectively arranged on the other two opposite sides of the lower die core, the first sliding group comprises a first sliding block and a first inclined guide pillar, the first sliding block comprises a first insert matched with the upper die core and the lower die core and a first sliding block driving the first insert to move, the first insert is connected with the first sliding block, the first sliding block is provided with a first through hole which is obliquely and downwards far away from the lower die core, the upper end of the first inclined guide pillar is fixed on the upper die assembly, the lower end of the first inclined guide pillar is inserted into the first through hole, and an insertion groove is arranged on the lower surface of the first sliding block and close to the lower die core relative to the first through hole; the second sliding group comprises a second sliding block and a second inclined guide post, the second sliding block is matched with the upper die core and the lower die core, a second through hole which is inclined outwards is formed in the second sliding block, the upper end of the second inclined guide post is fixed on the upper die assembly, and the lower end of the second inclined guide post is inserted into the second through hole; the third sliding group comprises a third sliding block and a third inclined guide pillar, the third sliding block is matched with the upper die core and the lower die core, a third through hole which is inclined outwards is formed in the third sliding block, the upper end of the third inclined guide pillar is fixed on the upper die assembly, and the lower end of the third inclined guide pillar is inserted into the third through hole; the fourth sliding group comprises a fourth sliding block, a fourth inclined guide pillar, a second insert and an inclined guide pillar fixing block, a fourth through hole which is inclined outwards is formed in the fourth sliding block, the inclined guide pillar fixing block is fixed on the upper die assembly, the upper end of the fourth inclined guide pillar is fixed on the inclined guide pillar fixing block, the lower end of the fourth inclined guide pillar is inserted into the fourth through hole, the second insert is fixed on the inner side of the fourth sliding block, and the second insert is matched with the upper die core and the lower die core; a cavity is formed among the first insert, the lower die core, the upper die core, the second slide block, the third slide block and the second insert, and the nozzle is positioned right above the cavity; the ejection assembly is arranged on the lower die assembly and comprises a main thimble group, an anti-collision thimble and an ejector plate, the main thimble group is located under the cavity, the main thimble group is fixed on the ejector plate, the upper end of the anti-collision thimble is inserted into the insertion groove, and the lower end of the anti-collision thimble is fixed on the ejector plate.
Preferably, a moving plate is arranged below the first sliding block and next to the first sliding block, and a first groove for the lower end of the first inclined guide post to pass through and a second groove for the upper end of the anti-collision thimble to pass through are formed in the moving plate.
Preferably, the number of cavities is 2. Further, the number of the first sliding groups is 2, and the 2 first sliding groups are symmetrically arranged relative to the symmetry plane of the lower die assembly. Furthermore, the 2 first sliding groups are positioned in the center of the lower die core. And furthermore, moving plates are arranged below the first sliding blocks of the 2 first sliding groups and are adjacent to the first sliding blocks, and first grooves for the lower ends of the first inclined guide pillars to pass through and second grooves for the upper ends of the anti-collision ejector pins to pass through are formed in the moving plates. Still further, one end of the moving plate, which is far away from the anti-collision thimble, protrudes out of the first sliding block.
Preferably, a third groove is arranged on the lower surface of the first sliding block.
Compared with the prior art, the beneficial effects of the utility model are that: a cavity for injection molding of a complex product is formed by matching the first insert, the lower die core, the upper die core, the second slide block, the third slide block and the second insert, so that the production precision and the production quality of the injection molded product can be improved; the insertion groove is formed below the first sliding block, the anti-collision ejector pin is arranged below the insertion groove, and the insertion groove is matched with the anti-collision ejector pin in the die opening and closing process, so that the phenomenon that the sliding block collides with the ejector pin is effectively avoided, the die is protected from being damaged, and the service life of the die is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a product produced by a precision injection mold with a safety protection function according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a precision injection mold with a safety protection function according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view in the direction AA of FIG. 2;
fig. 4 is a cross-sectional view in the BB direction of fig. 2;
fig. 5 is a schematic structural view of the first sliding set and the ejection assembly.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a product 100 produced by a precision injection mold with a safety protection function according to an embodiment of the present invention.
Referring to fig. 2 to 5, the present invention provides a precision injection mold with safety protection function, which includes an upper mold assembly 1, a lower mold assembly 2, a sliding assembly and an ejection assembly 4.
The upper die assembly 1 includes an upper die core 11 and a nozzle 12.
The lower die assembly 2 includes a lower die core 21.
The sliding assembly includes a first sliding group 31, a second sliding group 32, a third sliding group 33 and a fourth sliding group 34, the first sliding group 31 and the second sliding group 32 are respectively disposed at two opposite sides of the lower mold core 21, and the third sliding group 33 and the fourth sliding group 34 are respectively disposed at the other two opposite sides of the lower mold core 21.
The first sliding group 31 includes a first sliding block 311 and a first angle guide pole 312, the first sliding block 311 includes a first insert 51 fitting with the upper die core 11 and the lower die core 21, and a first sliding block 52 driving the first insert 51 to move, the first insert 51 is connected with the first sliding block 52, the first sliding block 52 is provided with a first through hole obliquely downward far away from the lower die core 21, the upper end of the first angle guide pole 312 is fixed on the upper die assembly 1, the lower end of the first angle guide pole 312 is inserted into the first through hole, and the lower surface of the first sliding block 52 is provided with an insertion groove 521 at a position close to the lower die core 21 relative to the first through hole.
The second sliding group 32 includes a second sliding block 321 and a second angle guide column 322, the second sliding block 321 fits with the upper mold core 11 and the lower mold core 21, a second through hole is formed in the second sliding block 321, an upper end of the second angle guide column 322 is fixed on the upper mold assembly 1, and a lower end of the second angle guide column 322 is inserted into the second through hole.
The third sliding group 33 includes a third sliding block 331 and a third angle guide post 332, the third sliding block 331 fits with the upper mold core 11 and the lower mold core 21, the third sliding block 331 is provided with a third through hole facing outward, the upper end of the third angle guide post 332 is fixed on the upper mold assembly, and the lower end of the third angle guide post 332 is inserted into the third through hole.
The fourth sliding group 34 includes a fourth sliding block 341, a fourth angle post 342, a second insert 343, and an angle post fixing block 344, the fourth sliding block 341 is provided with a fourth through hole facing outward, the angle post fixing block 344 is fixed on the upper die assembly 1, the upper end of the fourth angle post 342 is fixed on the angle post fixing block 344, the lower end of the fourth angle post 342 is inserted into the fourth through hole, the second insert 343 is fixed on the inner side of the fourth sliding block 341, and the second insert 343 is fitted with the upper die core 11 and the lower die core 21.
The first insert 51, the lower mold core 21, the upper mold core 11, the second slide block 321, the third slide block 331 and the second insert 343 together form a cavity 6, and the nozzle 12 is located right above the cavity 6.
The ejection assembly 4 is arranged on the lower die assembly 2, the ejection assembly 4 comprises a main thimble group 41, an anti-collision thimble 42 and an ejector plate 43, the main thimble group 41 is positioned under the die cavity 6, the main thimble group 41 is fixed on the ejector plate 43, the upper end of the anti-collision thimble 42 is inserted into the insertion groove 521, and the lower end of the anti-collision thimble 42 is fixed on the ejector plate 43.
In a preferred embodiment, a moving plate 7 is disposed below the first sliding block 52 and adjacent to the first sliding block 52, and the moving plate 7 is provided with a first groove 71 for the lower end of the first inclined guide post 312 to pass through and a second groove 72 for the upper end of the thimble 42 to pass through, so as to increase the retraction distance of the thimble 42, effectively prevent the sliding block from hitting the thimble, protect the mold from being damaged, and prolong the service life of the mold.
Referring to fig. 2 and 4, in a preferred embodiment, the number of the cavities 6 is multiple, preferably 2, so as to complete injection molding of multiple products at the same time by one mold opening and closing operation, and each cavity 6 is formed by matching a first insert 51, a lower mold core 21, an upper mold core 11, a second slide block 321, a third slide block 331 and a second insert 343. Further, the number of the first sliding groups 31 is 2, and 2 first sliding groups 31 are symmetrically arranged about the symmetry plane of the lower die assembly 2. Further, 2 first sliding groups 31 are located in the center of lower die assembly 2. Furthermore, a moving plate 7 is arranged below the first sliding block 52 of each of the 2 first sliding groups 31 and adjacent to the first sliding block 52, and a first groove 71 for the lower end of the first inclined guide post 312 to pass through and a second groove 72 for the upper end of the thimble 42 to pass through are arranged on the moving plate 7, so that the return distance of the thimble 42 is increased, the thimble is effectively prevented from being hit by the sliding block, the die is protected from being damaged, and the service life of the die is prolonged. Still further, the end of the moving plate 7 away from the thimble 42 protrudes the first slide block 52 to prevent the lower ends of the first angle guide posts 312 of the 2 first slide groups 31 from interfering with each other.
Preferably, when the moving plate 7 is disposed under the first sliding block 52 and next to the first sliding block 52, a third groove 73 is disposed on the lower surface of the first sliding block 52, and the third groove 73 is perpendicular to the moving direction of the first sliding block 52 and the moving plate 7, so as to reduce the friction force between the first sliding block 52 and the moving plate 7.
The working process is as follows: when the mold is opened, the slide blocks slide outwards under the action of the inclined guide posts, the slide blocks move back to the preset positions, and the insertion grooves 521 on the first slide blocks 52 are just aligned with the thimble 42. The ejector plate 43 drives the main ejector pin group 41 and the anti-collision ejector pins 42 to move upwards, the upper ends of the anti-collision ejector pins 42 are inserted into the insertion grooves 521 on the first sliding block 52, and the main ejector pin group 41 ejects and releases the product. When the mold is closed, if the ejector plate 43 is not completely retracted, the anti-collision ejector pin 42 is continuously inserted into the insertion groove 521, so that the first inclined guide pillar 312 cannot perform mold closing movement on the first sliding block 52, thereby preventing the sliding block from interfering with the main ejector pin group 41, effectively protecting the mold from being damaged, and prolonging the service life of the mold.
The utility model discloses a precision injection mold with safety protection function, through the cooperation formation die cavity that is used for the complicated product of injection molding between first insert, lower mould benevolence, upper mould benevolence, second slider, third slider and the second insert, can improve the production precision and the production quality of injection molding product; the insertion groove is formed below the first sliding block, the anti-collision ejector pin is arranged below the insertion groove, and the insertion groove is matched with the anti-collision ejector pin in the die opening and closing process, so that the phenomenon that the sliding block collides with the ejector pin is effectively avoided, the die is protected from being damaged, and the service life of the die is prolonged.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (8)
1. A precise injection mold with a safety protection function is characterized by comprising an upper mold component, a lower mold component, a sliding component and an ejection component,
the upper die assembly comprises an upper die core and a nozzle;
the lower die assembly comprises a lower die core;
the sliding assembly comprises a first sliding group, a second sliding group, a third sliding group and a fourth sliding group, the first sliding group and the second sliding group are respectively arranged at two opposite sides of the lower die core, the third sliding group and the fourth sliding group are respectively arranged at the other two opposite sides of the lower die core,
the first sliding group comprises a first sliding block and a first inclined guide post, the first sliding block comprises a first insert matched with the upper die core and the lower die core and a first sliding block driving the first insert to move, the first insert is connected with the first sliding block, the first sliding block is provided with a first through hole which is obliquely and downwards far away from the lower die core, the upper end of the first inclined guide post is fixed on the upper die assembly, the lower end of the first inclined guide post is inserted in the first through hole, the lower surface of the first sliding block is provided with an insertion groove at a position which is close to the lower die core relative to the first through hole,
the second sliding group comprises a second sliding block and a second inclined guide post, the second sliding block is matched with the upper die core and the lower die core, a second through hole which is inclined outwards is arranged on the second sliding block, the upper end of the second inclined guide post is fixed on the upper die assembly, the lower end of the second inclined guide post is inserted in the second through hole,
the third sliding group comprises a third sliding block and a third inclined guide post, the third sliding block is matched with the upper die core and the lower die core, a third through hole which is inclined outwards is arranged on the third sliding block, the upper end of the third inclined guide post is fixed on the upper die assembly, the lower end of the third inclined guide post is inserted in the third through hole,
the fourth sliding group comprises a fourth sliding block, a fourth inclined guide post, a second insert and an inclined guide post fixing block, a fourth through hole which is inclined outwards is arranged on the fourth sliding block, the inclined guide post fixing block is fixed on the upper die assembly, the upper end of the fourth inclined guide post is fixed on the inclined guide post fixing block, the lower end of the fourth inclined guide post is inserted into the fourth through hole, the second insert is fixed on the inner side of the fourth sliding block, and the second insert is matched with the upper die core and the lower die core,
a cavity is formed among the first insert, the lower die core, the upper die core, the second slide block, the third slide block and the second insert, and the nozzle is positioned right above the cavity;
the ejection assembly is arranged on the lower die assembly and comprises a main thimble group, an anti-collision thimble and an ejector plate, the main thimble group is located under the cavity, the main thimble group is fixed on the ejector plate, the upper end of the anti-collision thimble is inserted in the insertion groove, and the lower end of the anti-collision thimble is fixed on the ejector plate.
2. The precise injection mold with the safety protection function as claimed in claim 1, wherein a moving plate is disposed under the first sliding block and adjacent to the first sliding block, and a first groove for passing the lower end of the first inclined guide post and a second groove for passing the upper end of the anti-collision thimble are disposed on the moving plate.
3. A precision injection mold with safety protection function according to claim 1, characterized in that the number of said cavities is 2.
4. A precision injection mold with safety protection function according to claim 3, characterized in that the number of the first sliding groups is 2, and the 2 first sliding groups are symmetrically arranged with respect to the symmetry plane of the lower mold assembly.
5. A precision injection mold with safety protection as claimed in claim 4, wherein said 2 first sliding groups are located at the center of said lower mold assembly.
6. The precise injection mold with the safety protection function as claimed in claim 5, wherein a moving plate is disposed below and adjacent to the first sliding block of the 2 first sliding groups, and the moving plate is provided with a first groove for passing the lower end of the first inclined guide post and a second groove for passing the upper end of the anti-collision thimble.
7. The precision injection mold with the safety protection function as claimed in claim 6, wherein an end of the moving plate away from the thimble protrudes from the first sliding block.
8. The precision injection mold with the safety protection function as claimed in claim 2 or 6, wherein a third groove is provided on the lower surface of the first sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922148406.5U CN211591109U (en) | 2019-12-04 | 2019-12-04 | Precise injection mold with safety protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922148406.5U CN211591109U (en) | 2019-12-04 | 2019-12-04 | Precise injection mold with safety protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211591109U true CN211591109U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922148406.5U Active CN211591109U (en) | 2019-12-04 | 2019-12-04 | Precise injection mold with safety protection function |
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| Country | Link |
|---|---|
| CN (1) | CN211591109U (en) |
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2019
- 2019-12-04 CN CN201922148406.5U patent/CN211591109U/en active Active
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