CN111251542A - Three-hole spherical injection mold for window decoration - Google Patents
Three-hole spherical injection mold for window decoration Download PDFInfo
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- CN111251542A CN111251542A CN202010049756.0A CN202010049756A CN111251542A CN 111251542 A CN111251542 A CN 111251542A CN 202010049756 A CN202010049756 A CN 202010049756A CN 111251542 A CN111251542 A CN 111251542A
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- 238000002347 injection Methods 0.000 title claims abstract description 39
- 239000007924 injection Substances 0.000 title claims abstract description 39
- 238000005034 decoration Methods 0.000 title claims description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- 102220259718 rs34120878 Human genes 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000465 moulding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an injection mold for a three-hole spherical window ornament, which comprises a movable mold plate and a fixed mold plate, wherein the movable mold plate moves up and down to drive step-shaped slide blocks to slide back and forth along guide chutes, rod-shaped mold cores are fixedly connected at the front ends of the three step-shaped slide blocks, the upper half part and the lower half part of each rod-shaped mold core are respectively in sliding fit with arc-shaped slide grooves formed in the upper surface of the fixed mold core and the lower surface of the movable mold core, the three rod-shaped mold cores slide forward to extend into an injection molding cavity formed by a lower mold cavity and a lower mold cavity, and the injection molding cavity is used for injection molding. The movable mould plate and the fixed mould plate form an injection mould cavity after being matched, and the three rod-shaped mould cores as mould cores extend into the injection mould cavity, so that the three-hole spherical window ornament mould is suitable for batch injection production of small porous pieces, and the production efficiency of the three-hole spherical window ornament is improved.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold for a three-hole sphere window decoration.
Background
The mold injection molding is a processing method used for batch production of parts with complex shapes, and the specific production principle is that plastic raw materials which are melted by heating are pushed by a screw of an injection molding machine to be injected into a mold cavity of a plastic mold under high pressure, and after cooling and solidification, a plastic molding product is obtained. The plastic mold is generally composed of a movable mold and a fixed mold, the movable mold is mounted on a movable mold plate of the injection molding machine, and the fixed mold is mounted on a fixed mold plate of the injection molding machine. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out the plastic product. The concrete structure of plastic mould can divide into according to the function: the device comprises a pouring system, a temperature adjusting system, a formed part system, an exhaust system, a guide system, an ejection system and the like. Among them, the casting system and the molded parts are the parts in direct contact with the plastic and vary with the plastic and the product, and are the most complicated, most variable, and the most demanding of finish and precision in the mold.
The chinese patent application with publication number CN110561702A in the prior art discloses an injection mold, wherein a cavity core has an upper surface and a lower surface which are oppositely arranged, the upper surface is arranged facing a male mold, the upper surface of the cavity core is provided with a molding groove, a plurality of hot runners are arranged in the cavity core, one end of each hot runner is connected with a gate, the gate is arranged on the upper surface of the cavity core and communicated with the molding groove, the injection mold further comprises a vibrating device, the vibrating device comprises a main body part and a vibrating part connected with the main body part, the vibrating part is arranged in the cavity core in a penetrating manner, and the vibrating part is arranged between two adjacent hot runners. Among the above-mentioned injection mold, because vibrating device's vibration position is between two runners, vibrating device applys the vibration to cavity benevolence, can promote the plastic of joint line department to fuse each other, with the joint strength of reinforcing joint line department plastic, thereby promote the holistic joint strength of product, promoted the production yield.
The above prior art solutions have the following drawbacks: the vibration device is additionally arranged in the injection mold, so that the whole mold is excessively complex in structure and high in manufacturing cost; on the other hand, for small injection products with complex space structures, the more important process is the technical problem of porous molding and how to realize smooth demolding function. Therefore, it is necessary to develop an injection mold suitable for small plastic products.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the three-hole spherical injection mold for the window decoration, the movable mold plate and the fixed mold plate are assembled to form the injection mold cavity, the three rod-shaped mold cores are used as the mold cores to extend into the injection mold cavity, the three-hole spherical injection mold is suitable for batch injection production of small multi-hole parts, and the production efficiency and the injection quality of the three-hole spherical window decoration are improved.
The above object of the present invention is achieved by the following technical solutions:
an injection mold for a three-hole spherical window ornament piece comprises a movable mold plate and a fixed mold plate, wherein a movable mold core mounting hole, an upper pouring gate and three pressing grooves distributed in an annular mode are formed in the movable mold plate, a fixed mold core mounting hole, a lower pouring gate and three guide sliding chutes distributed in an annular mode are formed in the fixed mold plate, corresponding fixed mold cores and movable mold cores are respectively mounted in the fixed mold core mounting hole and the movable mold core mounting hole, a hemispherical lower mold cavity and a main runner are formed in the upper surface of each fixed mold core, two ends of the main runner are respectively communicated with the lower mold cavity and the lower pouring gate, a hemispherical upper mold cavity corresponding to the lower mold cavity is formed in the lower surface of each movable mold core, the three guide sliding chutes of the fixed mold plate respectively correspond to the three pressing grooves of the movable mold plate, a step-shaped sliding block is matched on each guide sliding chute in a sliding mode, a step-shaped sliding block on the upper portion of the step-shaped sliding, the rear part of the step-shaped slide block is connected with a return spring, the movable die plate moves downwards to drive the step-shaped slide block to slide forwards along the guide sliding groove, the front ends of the three step-shaped slide blocks are fixedly connected with rod-shaped die cores, the three rod-shaped die cores move forwards to stretch into an injection molding cavity formed by the upper die cavity and the lower die cavity, and the injection molding cavity is used for injection molding of three-hole spherical window ornaments.
By adopting the technical scheme, when the movable mould plate and the fixed mould plate are matched, the pressing groove of the movable mould plate is matched with the inclined plane of the step part at the upper part of the step-shaped slide block, so that the movable mould plate moving downwards drives the three step-shaped slide blocks to respectively slide forwards along the guide sliding grooves and drives the rod-shaped mould core to move forwards to extend into an injection mould cavity formed by the upper mould cavity and the lower mould cavity, and the three rod-shaped mould cores are used as mould cores for forming three holes of the window ornament; molten plastic enters the main runner from a sprue formed by the upper sprue and the lower sprue, flows through the main runner and is injected into the injection molding cavity, and the molten plastic is condensed to form a three-hole spherical window decoration piece; after the movable mould plate and the fixed mould plate are opened, the three step-shaped slide blocks are subjected to the pulling force of the reset spring and respectively slide backwards along the guide sliding grooves, and then the injection-molded three-hole spherical window decoration piece can be taken out. The injection mold is suitable for batch injection production of small porous parts, and improves the production efficiency and injection quality of three-hole spherical window ornaments.
The present invention in a preferred example may be further configured to: the upper surface of the fixed die core is provided with three lower arc-shaped sliding grooves which are distributed in an annular mode, the lower surface of the movable die core is provided with three upper arc-shaped sliding grooves which correspond to the lower arc-shaped sliding grooves respectively, and the upper half part and the lower half part of the rod-shaped die core are in sliding fit with the upper arc-shaped sliding grooves on the lower surface of the movable die core and the lower arc-shaped sliding grooves on the upper surface of the fixed die core respectively.
By adopting the technical scheme, the rod-shaped mold core at the front end of the step-shaped slide block is in sliding fit with the upper arc-shaped chute on the lower surface of the movable mold core and the lower arc-shaped chute on the upper surface of the fixed mold core, so that the accuracy of the size and the position of the three holes of the window ornament is ensured.
The present invention in a preferred example may be further configured to: an inclined bar-shaped hole is formed in one of the three step-shaped sliding blocks, an inclined guide pillar is matched in the inclined bar-shaped hole of the step-shaped sliding block in a sliding mode, the upper end of the inclined guide pillar is fixedly connected with the movable mold plate, and an accommodating cavity used for accommodating the lower end of the inclined guide pillar is formed in the fixed mold plate.
By adopting the technical scheme, when the movable mould plate and the fixed mould plate are opened, the movable mould plate moves upwards to drive the inclined guide post to move upwards, meanwhile, the inclined guide post drives the step-shaped slide block to further move backwards along the guide sliding groove, and the three-hole spherical window ornament can be taken out from one side of the step-shaped slide block, so that the lateral demoulding function of the three-hole spherical window ornament is realized, and the smooth taking out of the three-hole spherical window ornament is ensured.
The present invention in a preferred example may be further configured to: the front ends of the three rod-shaped mold cores are provided with two inclined side surfaces, and the two inclined side surfaces of the front ends of the three rod-shaped mold cores are perpendicular to the movable mold plate or the fixed mold plate.
By adopting the technical scheme, the two inclined side surfaces at the front ends of the three rod-shaped mold cores are intersected and matched to form a mold core structure with three holes of the window decoration, and the three holes of the injection molded three-hole spherical window decoration are communicated.
The present invention in a preferred example may be further configured to: and a plurality of exhaust grooves are formed in the upper surface of the fixed die core and close to the lower die cavity, and a communication groove communicated with the lower die cavity is formed in one side of each exhaust groove.
By adopting the technical scheme, gas generated in the injection molding process can enter the exhaust grooves adjacent to the mold cavity, so that the injection molding quality of the three-hole spherical window ornament is ensured.
The present invention in a preferred example may be further configured to: the four corners of the fixed die core are respectively provided with a positioning lug, and the four corners of the movable die core are respectively provided with a positioning groove corresponding to the positioning lug.
By adopting the technical scheme, the positioning lug is in guide fit with the positioning groove, and the size and position accuracy of the three-hole spherical window ornament of the injection molding piece are kept when the die is closed or opened by the fixed die core and the movable die core.
The present invention in a preferred example may be further configured to: and the vertical positions of an upper sprue on the movable template correspond to the vertical positions of a lower sprue on the fixed template.
By adopting the technical scheme, the upper sprue on the movable mould plate is matched with the lower sprue on the fixed mould plate to form the sprue for enabling the molten plastic to enter the mould cavity.
The present invention in a preferred example may be further configured to: the material of the fixed die core and the movable die core is selected from one of plastic die steel, P20 steel or S55C steel.
By adopting the technical scheme, the plastic die steel, the P20 steel or the S55C steel are all steels with high mirror polishing performance, and are very suitable for being processed and manufactured into the cavity insert and the cavity insert.
The present invention in a preferred example may be further configured to: the three rod-shaped cores are made of one of NAK80 steel, S136 steel or H13 steel.
By adopting the technical scheme, the NAK80 steel, the S136 steel or the H13 steel are all steels with the advantages of high wear resistance, high hot tensile strength, high toughness and the like, and are very suitable for being processed and manufactured into the rod-shaped mold core.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the movable template and the fixed template are matched, the pressing groove of the movable template is matched with the inclined plane of the step part at the upper part of the step-shaped slide block, so that the movable template moving downwards drives the three step-shaped slide blocks to respectively slide forwards along the guide sliding grooves, and drives the rod-shaped mold core to move forwards to extend into an injection molding cavity formed by the upper mold cavity and the lower mold cavity, and the three rod-shaped mold cores are used as mold cores for forming three holes of a window ornament; molten plastic enters the main runner from a sprue formed by the upper sprue and the lower sprue, flows through the main runner and is injected into the injection molding cavity, and the molten plastic is condensed to form a three-hole spherical window decoration piece; after the movable mould plate and the fixed mould plate are opened, the three step-shaped slide blocks are subjected to the pulling force of the reset spring and respectively slide backwards along the guide sliding grooves, and then the injection-molded three-hole spherical window decoration piece can be taken out. The injection mold is suitable for batch injection production of small porous pieces, and improves the production efficiency and injection quality of the three-hole spherical window ornament;
2. when the movable template and the fixed template are opened, the movable template moves upwards to drive the inclined guide post to move upwards, meanwhile, the inclined guide post drives the step-shaped slide block to further move backwards along the guide sliding groove, and the window decoration piece of the three-hole sphere can be taken out from one side of the step-shaped slide block, so that the function of lateral demoulding of the window decoration piece of the three-hole sphere is realized, and the smooth taking out of the window decoration piece of the three-hole sphere is ensured; the positioning lug is in guide fit with the positioning groove, and the size and position accuracy of the window decoration piece of the injection molding piece three-hole sphere are kept when the fixed mold core and the movable mold core are matched with each other or opened;
3. the gas generated in the injection molding process can enter the exhaust groove adjacent to the mold cavity, so that the injection molding quality of the three-hole sphere window decoration piece is ensured; the plastic die steel, the P20 steel or the S55C steel are all steels with high mirror polishing performance, and are very suitable for being processed and manufactured into a cavity block and a die block; NAK80 steel, S136 steel or H13 steel are all steel with the advantages of high wear resistance, high hot tensile strength, high toughness and the like, and are very suitable for being processed and manufactured into rod-shaped mold cores.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the installation of the moving die plate of the present invention.
Fig. 3 is a schematic view of the installation of the stationary platen of the present invention. .
In the figure, 1, a movable template; 11. a movable mould core mounting hole; 12. an upper gate; 13. pressing and placing the groove; 2. fixing a template; 21. a fixed die core mounting hole; 22. a lower gate; 23. a guide chute; 3. fixing a mold core; 31. a lower die cavity; 32. a main flow channel; 33. positioning the bump; 34. an exhaust groove; 35. a lower arc-shaped chute; 4. a movable mould core; 41. an upper mold cavity; 42. a positioning groove; 43. an upper arc-shaped chute; 5. a step-shaped sliding block; 51. a step portion; 511. a rear side wall of the step portion; 52. an oblique strip-shaped hole; 53. an inclined guide post; 6. a rod-shaped mold core; 61. a beveled side; 7. three-hole ball window decoration.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, the invention discloses an injection mold for a three-hole spherical window ornament 7, which comprises a movable mold plate 1 and a fixed mold plate 2, wherein the movable mold plate 1 is provided with a movable mold core mounting hole 11, an upper sprue 12 and three pressing grooves 13 which are distributed annularly, the fixed mold plate 2 is provided with a fixed mold core mounting hole 21, a lower sprue 22 and three guiding chutes 23 which are distributed annularly, the upper sprue 12 on the movable mold plate 1 corresponds to the lower sprue 22 on the fixed mold plate 2 in vertical position, the fixed mold core mounting hole 21 and the movable mold core mounting hole 11 are respectively provided with a corresponding fixed mold core 3 and a corresponding movable mold core 4, the upper surface of the fixed mold core 3 is provided with a hemispherical lower mold cavity 31 and a main runner 32, two ends of the main runner 32 are respectively communicated with the lower mold cavity 31 and the lower sprue 22, the lower surface of the movable mold core 4 is provided with a hemispherical upper mold cavity 41 which corresponds to the lower mold cavity 31, the three guiding chutes 23 of the fixed mold plate 2 respectively correspond to the, and the guide chute 23 is slidably matched with a step-shaped slide block 5, a step part 51 on the upper part of the step-shaped slide block 5 is matched with the pressing groove 13, the rear side wall of the step part 51 is in inclined plane fit with the inner wall of the rear side of the pressing groove 13, the rear part of the step-shaped slide block 5 is connected with a return spring, the movable template 1 moves downwards to drive the step-shaped slide block 5 to slide forwards along the guide chute 23, the front ends of the three step-shaped slide blocks 5 are fixedly connected with rod-shaped mold cores 6, the three rod-shaped mold cores 6 move forwards to extend into an injection molding cavity formed by the upper mold cavity 41 and the lower mold cavity 31, and the injection molding cavity is used for.
Referring to fig. 2 and 3, the upper surface of the fixed mold core 3 is provided with three lower arc-shaped sliding grooves 35 which are distributed annularly, the lower surface of the movable mold core 4 is provided with three upper arc-shaped sliding grooves 43 which correspond to the lower arc-shaped sliding grooves 35, and the upper half part and the lower half part of the rod-shaped mold core 6 are in sliding fit with the upper arc-shaped sliding grooves 43 on the lower surface of the movable mold core 4 and the lower arc-shaped sliding grooves 35 on the upper surface of the fixed mold core 3 respectively. An inclined bar-shaped hole 52 is formed in one step-shaped slide block 5 of the three step-shaped slide blocks 5, an inclined guide post 53 is in sliding fit in the inclined bar-shaped hole 52 of the step-shaped slide block 5, the upper end of the inclined guide post 53 is fixedly connected with the movable template 1, and an accommodating cavity for accommodating the lower end of the inclined guide post 53 is formed in the fixed template 2. The front ends of the three rod-shaped mold cores 6 are provided with two inclined side surfaces 61, and the two inclined side surfaces 61 of the front ends of the three rod-shaped mold cores 6 are perpendicular to the movable mold plate 1 or the fixed mold plate 2. A plurality of exhaust grooves 34 are formed on the upper surface of the core insert 3 and close to the lower mold cavity 31, and a communication groove communicated with the lower mold cavity 31 is formed on one side of each exhaust groove 34. The four corners of the cavity block 3 are respectively provided with a positioning bump 33, and the four corners of the movable block 4 are respectively provided with a positioning groove 42 corresponding to the positioning bump 33.
The material of the cavity block 3 and the core block 4 is selected from one of plastic die steel, P20 steel or S55C steel. The material of the three rod-shaped cores 6 is selected from one of NAK80 steel, S136 steel or H13 steel.
The implementation principle of the embodiment is as follows: when the movable template 1 and the fixed template 2 are matched, the pressing groove 13 of the movable template 1 is matched with the step part 51 on the upper part of the step-shaped slide block 5 in an inclined plane, so that the movable template 1 moving downwards drives the three step-shaped slide blocks 5 to respectively slide forwards along the guide slide grooves 23 and drives the rod-shaped mold cores 6 to move forwards and extend into an injection molding cavity formed by the upper mold cavity 41 and the lower mold cavity 31, and the three rod-shaped mold cores 6 are used as mold cores for forming three holes of window ornaments; molten plastic enters the main runner 32 from a sprue formed by the upper sprue 12 and the lower sprue 22, flows through the main runner 32 and is injected into the injection molding cavity, and the molten plastic is condensed to form the three-hole spherical window decoration 7; after the movable mould plate 1 and the fixed mould plate 2 are opened, the three step-shaped slide blocks 5 slide backwards along the guide chutes 23 under the action of the tension of the return springs respectively, and then the injection-molded three-hole spherical window decoration 7 can be taken out. When the movable die plate 1 and the fixed die plate 2 are opened, the movable die plate 1 moves upwards to drive the inclined guide post 53 to move upwards, meanwhile, the inclined guide post 53 drives the step-shaped slide block 5 to further move backwards along the guide sliding groove 23, and the three-hole spherical window decoration piece 7 can be taken out from one side of the step-shaped slide block 5, so that the function of lateral demolding of the three-hole spherical window decoration piece 7 is realized.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a three spheroidal injection mold for window decoration spare of hole, includes movable mould board (1), fixed die plate (2), its characterized in that: the movable mould plate (1) is provided with a movable mould core mounting hole (11), an upper pouring gate (12) and three pressing grooves (13) which are distributed annularly, the fixed mould plate (2) is provided with a fixed mould core mounting hole (21), a lower pouring gate (22) and three guide sliding chutes (23) which are distributed annularly, the fixed mould core mounting hole (21) and the movable mould core mounting hole (11) are internally provided with a fixed mould core (3) and a movable mould core (4) which correspond to each other respectively, the upper surface of the fixed mould core (3) is provided with a hemispherical lower mould cavity (31) and a main runner (32), two ends of the main runner (32) are respectively communicated with the lower mould cavity (31) and the lower pouring gate (22), the lower surface of the movable mould core (4) is provided with a hemispherical upper mould cavity (41) which corresponds to the lower mould cavity (31), and the three guide sliding chutes (23) of the fixed mould plate (2) are respectively corresponding to the three pressing grooves, and the guide chute (23) is slidably matched with a step-shaped sliding block (5), a step part (51) on the upper part of the step-shaped sliding block (5) is matched with the pressing groove (13), the rear side wall of the step part (51) is in inclined plane fit with the inner wall of the rear side of the pressing groove (13), the rear part of the step-shaped sliding block (5) is connected with a return spring, the movable die plate (1) moves downwards to drive the step-shaped sliding block (5) to slide forwards along the guide chute (23), the front ends of the three step-shaped sliding blocks (5) are fixedly connected with rod-shaped die cores (6), the three rod-shaped die cores (6) move forwards to stretch into an injection molding cavity formed by an upper die cavity (41) and a lower die cavity (31), and the injection molding cavity is used for injection molding.
2. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: the upper surface of the fixed die core (3) is provided with three lower arc-shaped sliding grooves (35) which are distributed in an annular mode, the lower surface of the movable die core (4) is provided with three upper arc-shaped sliding grooves (43) which correspond to the lower arc-shaped sliding grooves (35) respectively, and the upper half part and the lower half part of the rod-shaped die core (6) are in sliding fit with the upper arc-shaped sliding grooves (43) on the lower surface of the movable die core (4) and the lower arc-shaped sliding grooves (35) on the upper surface of the fixed die core (3) respectively.
3. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: an inclined strip-shaped hole (52) is formed in one step-shaped sliding block (5) of the three step-shaped sliding blocks (5), an inclined guide pillar (53) is matched in the inclined strip-shaped hole (52) of the step-shaped sliding block (5) in a sliding mode, the upper end of the inclined guide pillar (53) is fixedly connected with the movable template (1), and an accommodating cavity used for accommodating the lower end of the inclined guide pillar (53) is formed in the fixed template (2).
4. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: the front ends of the three rod-shaped mold cores (6) are provided with two inclined side surfaces (61), and the two inclined side surfaces (61) at the front ends of the three rod-shaped mold cores (6) are perpendicular to the movable mold plate (1) or the fixed mold plate (2).
5. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: the upper surface of the fixed die core (3) and the position close to the lower die cavity (31) are provided with a plurality of exhaust grooves (34), and one side of each exhaust groove (34) is provided with a communication groove communicated with the lower die cavity (31).
6. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: four corners of the fixed die core (3) are respectively provided with a positioning lug (33), and four corners of the movable die core (4) are respectively provided with a positioning groove (42) corresponding to the positioning lug (33).
7. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: the vertical positions of an upper sprue (12) on the movable template (1) and a lower sprue (22) on the fixed template (2) correspond.
8. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: the material of the fixed die core (3) and the movable die core (4) is selected from one of plastic die steel, P20 steel or S55C steel.
9. An injection mold for a three-hole spherical window ornament according to claim 1, wherein: the material of the three rod-shaped cores (6) is selected from one of NAK80 steel, S136 steel or H13 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010049756.0A CN111251542A (en) | 2020-01-16 | 2020-01-16 | Three-hole spherical injection mold for window decoration |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889480A (en) * | 1988-11-22 | 1989-12-26 | Sankyo Engineering Co., Ltd. | Slide core mold and injection molding |
| CN101117015A (en) * | 2007-09-03 | 2008-02-06 | 黄山市汽车电器有限公司 | Bended wedge inside and outside knockout core injection mould |
| CN202399469U (en) * | 2011-12-16 | 2012-08-29 | 宁波万隆模塑成型有限公司 | Step-by-step opening injection mould |
| CN203994536U (en) * | 2014-08-06 | 2014-12-10 | 江天精密制造科技（苏州）有限公司 | The core-pulling die structure of elongated tubular bodies |
| CN107081877A (en) * | 2017-06-28 | 2017-08-22 | 黄石市洪兴塑料模具股份有限公司 | Shaft sleeve die |
| CN208324078U (en) * | 2018-06-08 | 2019-01-04 | 昆山精鑫模具有限公司 | A kind of Plastic injection mould for mobile phone shell |
| CN110103414A (en) * | 2019-06-03 | 2019-08-09 | 常州密优精密模具有限公司 | The encapsulated injection mold of strong magnet rotor iron core |
-
2020
- 2020-01-16 CN CN202010049756.0A patent/CN111251542A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889480A (en) * | 1988-11-22 | 1989-12-26 | Sankyo Engineering Co., Ltd. | Slide core mold and injection molding |
| CN101117015A (en) * | 2007-09-03 | 2008-02-06 | 黄山市汽车电器有限公司 | Bended wedge inside and outside knockout core injection mould |
| CN202399469U (en) * | 2011-12-16 | 2012-08-29 | 宁波万隆模塑成型有限公司 | Step-by-step opening injection mould |
| CN203994536U (en) * | 2014-08-06 | 2014-12-10 | 江天精密制造科技（苏州）有限公司 | The core-pulling die structure of elongated tubular bodies |
| CN107081877A (en) * | 2017-06-28 | 2017-08-22 | 黄石市洪兴塑料模具股份有限公司 | Shaft sleeve die |
| CN208324078U (en) * | 2018-06-08 | 2019-01-04 | 昆山精鑫模具有限公司 | A kind of Plastic injection mould for mobile phone shell |
| CN110103414A (en) * | 2019-06-03 | 2019-08-09 | 常州密优精密模具有限公司 | The encapsulated injection mold of strong magnet rotor iron core |
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Application publication date: 20200609 |