CN213972380U - Injection mold capable of realizing rapid molding - Google Patents

Injection mold capable of realizing rapid molding Download PDF

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Publication number
CN213972380U
CN213972380U CN202022715134.5U CN202022715134U CN213972380U CN 213972380 U CN213972380 U CN 213972380U CN 202022715134 U CN202022715134 U CN 202022715134U CN 213972380 U CN213972380 U CN 213972380U
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mold
aluminum
block
ejection
injection mold
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CN202022715134.5U
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朱克刚
谢敏
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Shenzhen Nabai Technology Co ltd
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Shenzhen Nabai Technology Co ltd
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Abstract

The utility model discloses a rapid-forming injection mold, which comprises a first aluminum mold, a second aluminum mold and a plurality of ejection mechanisms, wherein a mold cavity is formed between the first aluminum mold and the second aluminum mold; the ejection mechanism comprises an ejection block and a pull rod, one end of the pull rod is connected with the first aluminum mold, the ejection block is slidably arranged on the second aluminum mold and is positioned on the lower side edge of the mold cavity, and the other end of the pull rod can axially and movably penetrate through the ejection block so as to pull the ejection block when the first aluminum mold is opened relative to the second aluminum mold, so that the ejection block ejects an injection molding piece in the mold cavity. The utility model discloses rapid prototyping's injection mold has simple structure, with low costs, the heat dissipation is fast, processing cycle is short advantage.

Description

Injection mold capable of realizing rapid molding
Technical Field
The utility model relates to a rapid prototyping's injection mold especially relates to a simple structure, with low costs, processing cycle is short, the fast prototyping's of heat dissipation injection mold.
Background
An injection mold is a tool for cooling and shaping a thermoplastic plastic or a thermosetting plastic in a molten state into plastic products of various shapes. The traditional injection mold at least comprises an upper mold plate, an upper mold, a lower mold plate, an ejector pin push plate and other parts, after injection molding is completed, the lower mold moves downwards to leave the upper mold, and meanwhile, the ejector pin push plate pushes the ejector pin to push the injection molding part upwards so as to demould the injection molding part. However, the conventional mold has a complicated structure for ejecting the ejector pins, and has many parts, which results in a large mold volume and inconvenient processing and assembly. In addition, the traditional mold is made of cast iron, and the cast iron is heavy and slow in heat dissipation, so that the injection molding period is long, and the production cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick fashioned injection mold of simple structure, with low costs, heat dissipation fast, processing cycle is short.
In order to achieve the above object, the utility model provides a rapid prototyping's injection mold includes first aluminium mould, second aluminium mould and a plurality of ejection mechanism, form the die cavity between first aluminium mould and the second aluminium mould; the ejection mechanism comprises an ejection block and a pull rod, one end of the pull rod is connected with the first aluminum mold, the ejection block is slidably arranged on the second aluminum mold and is positioned on the lower side edge of the mold cavity, and the other end of the pull rod can axially and movably penetrate through the ejection block so as to pull the ejection block when the first aluminum mold is opened relative to the second aluminum mold, so that the ejection block ejects an injection molding piece in the mold cavity.
Compared with the prior art, because the utility model discloses a set up an ejecting piece on second aluminium mould with sliding, and make ejecting piece is located the lower side edge of die cavity is connected a pull rod and first aluminium mould again, utilizes first aluminium mould die sinking motion to drive the pull rod makes the pull rod drives ejecting piece roll-off the second aluminium mould to make second aluminium mould with the ejecting die cavity of injection molding, reach the purpose of drawing of patterns, whole ejection mechanism structure is very simple, avoids using traditional thimble and thimble board's design, has simplified the structure of mould widely, reduces the volume of mould, thereby reduce cost. In addition, the upper die and the lower die are made of aluminum materials, and the good heat conduction performance of the aluminum materials is utilized, so that the heat dissipation speed of the dies can be accelerated, the injection molding period is shortened, the die materials are saved, and the production cost is further reduced.
Preferably, one end of the pull rod is provided with an abutting head, the abutting head is far away from the ejection block when the mold is closed, and the abutting head slides to the ejection block and can abut against the ejection block when the mold is opened.
Preferably, the ejection mechanism further comprises a limiting rod, one end of the limiting rod is connected with the ejection block, the other end of the limiting rod is provided with a limiting head, and the limiting head is slidably arranged on the second aluminum die. The limiting rod is arranged, so that the ejection block can be prevented from being accidentally separated from the second aluminum die, the ejection block can be more accurately and easily reset, and the accuracy and convenience of die opening and closing are improved.
Specifically, the second aluminum die is provided with a stepped through hole, the limiting rod is arranged in the stepped through hole, and the limiting head is slidably arranged in one end with a large diameter of the stepped through hole.
Specifically, the upper surface of the second aluminum die is provided with an accommodating cavity, and the ejection block can be arranged in the accommodating cavity in an up-and-down sliding manner.
Preferably, the first aluminum die is provided with a connecting hole, a connector is fixed in the connecting hole, and the connector is connected with the pull rod.
Preferably, the rapid prototyping injection mold further comprises a lateral core-pulling mechanism, the lateral core-pulling mechanism comprises a pushing block, a diagonal rod, a sliding block and an elastic piece, the pushing block is fixed on the first aluminum mold, the diagonal rod is fixed on the pushing block, the sliding block is slidably arranged on the second aluminum mold, a mold core is arranged on one side of the sliding block, an inclined hole is formed in the sliding block, and the diagonal rod is slidably arranged in the inclined hole to push the mold core to be close to or far away from the mold cavity; the elastic piece is arranged between the sliding block and the second aluminum die so as to enable the sliding block to reset. Through set up on the second aluminium mould the slider sets up the inclined hole on the slider, again set up on the first aluminium mould and promote piece and down tube, utilize the down tube with the inclined hole cooperation, the down tube can utilize the die sinking power of first aluminium mould to promote during the die sinking of first aluminium mould the slider translation to make the mold core on the slider take off the die cavity, reach the purpose of side direction loosing core, its simple structure avoids the tradition to use extra power to drive the source and drive the slider slip alone, has greatly improved the convenience of die sinking, and control is more returned simple and conveniently.
Specifically, the second aluminum die is provided with a sliding groove, and the sliding block is slidably arranged in the sliding groove.
Specifically, the lateral core pulling mechanism further comprises pressing blocks, wherein the pressing blocks are fixed on two sides of the sliding groove and located on the upper side of the sliding block to prevent the sliding block from being separated from the sliding groove.
Preferably, the injection mold for rapid prototyping further includes a top plate connected to an upper side of the first aluminum mold and a bottom plate connected to a lower side of the second aluminum mold. The top plate and the bottom plate can enable the first aluminum die and the second aluminum die to be more conveniently mounted on the injection molding machine, and convenience in assembly and maintenance is improved.
Drawings
Fig. 1 is a perspective view of the rapid prototyping injection mold of the present invention.
Fig. 2 is a top view of the rapid prototyping injection mold of the present invention.
Fig. 3 is an exploded view of the rapid prototyping injection mold of the present invention.
Fig. 4 is a structural diagram of the first aluminum mold of the rapid prototyping injection mold of the present invention.
Fig. 5 is a structural diagram of a second aluminum mold of the rapid prototyping injection mold of the present invention.
Fig. 6 is a cross-sectional view taken along the line a-a in fig. 2.
Fig. 7 is an enlarged view of a portion C in fig. 6.
Fig. 8 is a cross-sectional view in the direction B-B in fig. 2.
Fig. 9 is an exploded view of the lateral core-pulling mechanism of the rapid prototyping injection mold of the present invention.
Detailed Description
In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
As shown in fig. 1 to 7, the rapid prototyping injection mold 100 of the present invention includes a first aluminum mold 1, a second aluminum mold 2, and a plurality of ejection mechanisms 3, wherein a mold cavity 101 is formed between the first aluminum mold 1 and the second aluminum mold 2; the first aluminum die 1 and the second aluminum die 2 are both made of aluminum materials, the first aluminum die 1 is a female die, and the second aluminum die 2 is a male die and is located on the lower side of the first aluminum die 1. The first aluminum die 1 is provided with a liquid injection port 11 and a runner communicated with the liquid injection port 11 and the die cavity 101. The ejection mechanisms 3 are distributed at the peripheral edge of the mold cavity 101. Specifically, the ejection mechanism 3 comprises an ejection block 31 and a pull rod 32, a connecting hole 12 is formed in the first aluminum mold 1, a connector 13 is fixed in the connecting hole 12, and one end of the pull rod 32 is detachably connected with the connector 13 on the first aluminum mold 1; the connector 13 is made of expanded plastic, and the pull rod 32 can be connected to the connector 13 in a threaded manner. The upper surface of the second aluminum mold 2 is provided with an accommodating cavity 21, the ejector block 31 is slidably arranged in the accommodating cavity 21 up and down, and the ejector block 31 is positioned at the lower side edge of the mold cavity 101, so that the edge of the injection molded part 200 after injection molding can be overlapped and arranged at the upper side of the ejector block 31. The other end of the pull rod 32 can axially and movably penetrate through the ejection block 31, the end of the pull rod 32 is provided with an abutting head 321, when the first aluminum mold 1 is closed relative to the second aluminum mold 2, the abutting head 321 is far away from the ejection block 31, when the first aluminum mold 1 is opened relative to the second aluminum mold 2, the abutting head 321 slides to the ejection block 31 and can abut against the ejection block 31, and then the ejection block 31 is pulled, so that the ejection block 31 ejects the injection molding piece 200 in the mold cavity 101.
Referring to fig. 7, the ejection mechanism 3 further includes a pair of limiting rods 33, the limiting rods 33 are respectively located at two sides of the pull rod 32, one end of the limiting rod 33 is connected to the ejection block 31, the other end of the limiting rod 33 is provided with a limiting head 331, and the limiting head 331 is slidably disposed on the second aluminum mold 2. Specifically, the second aluminum mold 2 is provided with a stepped through hole 22, the limiting rod 33 is disposed in the stepped through hole 22, and the limiting head 331 is slidably disposed in one end of the large diameter of the stepped through hole 22. The limiting rod 33 is arranged, so that the ejection block 31 can be prevented from being accidentally separated from the second aluminum die 2, the ejection block 31 can be more accurately and easily reset, and the accuracy and convenience of die opening and closing are improved.
Referring to fig. 5, 8 and 9 again, the rapidly molded injection mold 100 further includes a lateral core-pulling mechanism 4, the lateral core-pulling mechanism 4 includes a pushing block 41, an inclined rod 42, a sliding block 43 and an elastic member 44, the pushing block 41 is fixed to the first aluminum mold 1, the inclined rod 42 is fixed to the pushing block 41, and an inclined direction of the inclined rod 42 gradually extends outward from top to bottom. The second aluminum mold 2 is provided with a sliding groove 23, and the sliding block 43 is horizontally slidably arranged in the sliding groove 23 of the second aluminum mold 2. The slide 43 has a mold core 431 on one side, which mold core 431 can protrude into the mold cavity 101 in order to form a through-opening on one side of the injection molded part 200 during injection molding. The slide block 43 is provided with an inclined hole 432 matched with the inclined rod 42, and the inclined rod 42 is inserted into the inclined hole 432 in a sliding manner so as to push the mold core 431 to approach or depart from the mold cavity 101. The elastic member 44 is disposed between the sliding block 43 and the second aluminum mold 2 to restore the sliding block 43. Through set up on the second aluminium mould 2 slider 43 sets up inclined hole 432 on slider 43, again set up on first aluminium mould 1 and promote piece 41 and down tube 42, utilize down tube 42 with the cooperation of inclined hole 432, down tube 42 can utilize the die sinking power of first aluminium mould 1 to promote during the die sinking of first aluminium mould 1 slider 43 translation makes mold core 431 on the slider 43 breaks away from die cavity 101, reaches the purpose of side direction loosing core, and its simple structure avoids the tradition to use extra power drive source to slide slider 43 alone, has greatly improved the convenience of die sinking, and control is more simple and convenient back. When the first aluminum mold 1 is closed, the slide block 43 can be pushed to translate by using the closing power of the first aluminum mold 1, so that the mold core 431 on the slide block 43 is close to the mold cavity 101, and the purpose of positioning is achieved.
In addition, the lateral core pulling mechanism 4 further includes pressing blocks 45, and the pressing blocks 45 are fixed on both sides of the sliding groove 23 and located on the upper side of the sliding block 43 to prevent the sliding block 43 from being separated from the sliding groove 23. Therefore, the sliding smoothness and accuracy of the sliding block 43 can be ensured.
As shown in fig. 1, the rapid prototyping injection mold 100 further includes a top plate 5 connected to an upper side of the first aluminum mold 1 and a bottom plate 6 connected to a lower side of the second aluminum mold 2. The top plate 5 and the bottom plate 6 can facilitate the installation of the first aluminum mold 1 and the second aluminum mold 2 on the injection molding machine, thereby improving the convenience of assembly and maintenance.
In combination with the above and the attached drawings, during injection molding, molten plastic flows into the runner from the injection port 11, and then enters the mold cavity 101 through the runner. After the mold cavity 101 is filled with plastic, the mold is kept closed for a certain time, and during this time, the injection molding piece 200 is rapidly cooled by the first aluminum mold 1 and the second aluminum mold 2. After cooling, the injection molding machine drives the first aluminum mold 1 to ascend, the first aluminum mold 1 is separated from the second aluminum mold 2, meanwhile, the first aluminum mold 1 drives the pushing block 41 to ascend, the pushing block 41 drives the inclined rod 42 to slide in the inclined hole 432, and therefore the sliding block 43 is driven to horizontally move and be away from the mold cavity 101. At this point, core 431 is disengaged from injection molded part 200. When the first aluminum mold 1 is lifted, the pull rod 32 slides relative to the second aluminum mold 2 and the ejector block 31, and at this time, the ejector head 321 is not yet abutted against the ejector block 31, so that the ejector block 31 is located in the accommodating cavity 21 and is not moved. After the core pulling of the lateral core pulling mechanism 4 is completed, the first aluminum mold 1 is lifted to a certain height, the abutting head 321 abuts against the ejection block 31, the ejection block 31 is driven to slide upwards, and at this time, the ejection block 31 pushes the injection molding piece 200 to lift and separate from the second aluminum mold 2. After the injection molding piece 200 is demolded, the limiting head 331 of the limiting rod 33 also abuts against the step surface of the stepped hole, so that the ejection block 31 is limited from sliding out. After blanking, the first aluminum die 1 moves downwards, all parts of the ejection mechanism 3 and the lateral core-pulling mechanism 4 can reset, and at this time, the first aluminum die 1 and the second aluminum die 2 can be closed again.
Compared with the prior art, because the utility model discloses a set up an ejecting block 31 on second aluminium mould 2 with sliding, and make ejecting block 31 is located the lower side edge of die cavity 101 is connected a pull rod 32 with first aluminium mould 1 again, utilizes 1 die sinking motion of first aluminium mould to drive pull rod 32 makes pull rod 32 drives ejecting block 31 roll-off second aluminium mould 2 to make second aluminium mould 2 with the ejecting die cavity 101 of injection molding 200, reach the purpose of drawing of patterns, whole ejection mechanism 3 structure is very simple, avoids using traditional thimble and thimble board's design, has simplified the structure of mould widely, reduces the volume of mould, thereby reduce cost. In addition, the upper die and the lower die are made of aluminum materials, and the good heat conduction performance of the aluminum materials is utilized, so that the heat dissipation speed of the dies can be accelerated, the injection molding period is shortened, the die materials are saved, and the production cost is further reduced.
The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims (10)

1. The utility model provides a rapid prototyping's injection mold which characterized in that: the device comprises a first aluminum die, a second aluminum die and a plurality of ejection mechanisms, wherein a die cavity is formed between the first aluminum die and the second aluminum die; the ejection mechanism comprises an ejection block and a pull rod, one end of the pull rod is connected with the first aluminum mold, the ejection block is slidably arranged on the second aluminum mold and is positioned on the lower side edge of the mold cavity, and the other end of the pull rod can axially and movably penetrate through the ejection block so as to pull the ejection block when the first aluminum mold is opened relative to the second aluminum mold, so that the ejection block ejects an injection molding piece in the mold cavity.
2. The rapid prototyping injection mold of claim 1 wherein: and one end of the pull rod is provided with an abutting head, the abutting head is far away from the ejection block when the mold is closed, and the abutting head slides to the ejection block and can abut against the ejection block when the mold is opened.
3. The rapid prototyping injection mold of claim 1 wherein: the ejection mechanism further comprises a limiting rod, one end of the limiting rod is connected with the ejection block, the other end of the limiting rod is provided with a limiting head, and the limiting head is slidably arranged on the second aluminum die.
4. The rapid prototyping injection mold of claim 3 wherein: the second aluminum die is provided with a stepped through hole, the limiting rod is arranged in the stepped through hole, and the limiting head is slidably arranged in one end of the large diameter of the stepped through hole.
5. The rapid prototyping injection mold of claim 1 wherein: the upper surface of the second aluminum die is provided with a containing cavity, and the ejection block can be arranged in the containing cavity in an up-and-down sliding manner.
6. The rapid prototyping injection mold of claim 1 wherein: the first aluminum die is provided with a connecting hole, a connector is fixed in the connecting hole, and the connector is connected with the pull rod.
7. The rapid prototyping injection mold of claim 1 wherein: the rapid molding injection mold further comprises a lateral core-pulling mechanism, the lateral core-pulling mechanism comprises a pushing block, an inclined rod, a sliding block and an elastic piece, the pushing block is fixed on the first aluminum mold, the inclined rod is fixed on the pushing block, the sliding block is slidably arranged on the second aluminum mold, a mold core is arranged on one side of the sliding block, an inclined hole is formed in the sliding block, and the inclined rod is slidably arranged in the inclined hole to push the mold core to be close to or far away from the mold cavity; the elastic piece is arranged between the sliding block and the second aluminum die so as to enable the sliding block to reset.
8. The rapid prototyping injection mold of claim 7 wherein: the second aluminum die is provided with a sliding groove, and the sliding block is arranged in the sliding groove in a sliding mode.
9. The rapid prototyping injection mold of claim 8 wherein: the lateral core pulling mechanism further comprises pressing blocks, wherein the pressing blocks are fixed on two sides of the sliding groove and are located on the upper side of the sliding block to prevent the sliding block from being separated from the sliding groove.
10. The rapid prototyping injection mold of claim 1 wherein: the injection mold for rapid molding further comprises a top plate connected to the upper side of the first aluminum mold and a bottom plate connected to the lower side of the second aluminum mold.
CN202022715134.5U 2020-11-19 2020-11-19 Injection mold capable of realizing rapid molding Active CN213972380U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022715134.5U CN213972380U (en) 2020-11-19 2020-11-19 Injection mold capable of realizing rapid molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022715134.5U CN213972380U (en) 2020-11-19 2020-11-19 Injection mold capable of realizing rapid molding

Publications (1)

Publication Number Publication Date
CN213972380U true CN213972380U (en) 2021-08-17

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ID=77265698

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022715134.5U Active CN213972380U (en) 2020-11-19 2020-11-19 Injection mold capable of realizing rapid molding

Country Status (1)

Country Link
CN (1) CN213972380U (en)

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