CN220742001U - Multifunctional exhaust structure of injection mold - Google Patents
Multifunctional exhaust structure of injection mold Download PDFInfo
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- CN220742001U CN220742001U CN202322468321.1U CN202322468321U CN220742001U CN 220742001 U CN220742001 U CN 220742001U CN 202322468321 U CN202322468321 U CN 202322468321U CN 220742001 U CN220742001 U CN 220742001U
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- groove
- mold body
- injection
- blocking
- exhaust
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- 238000002347 injection Methods 0.000 title claims abstract description 57
- 239000007924 injection Substances 0.000 title claims abstract description 57
- 230000000903 blocking effect Effects 0.000 claims description 26
- 238000000926 separation method Methods 0.000 abstract description 8
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 10
- 238000013022 venting Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a multifunctional exhaust structure of an injection mold, which comprises a lower mold body, wherein the upper surface of the lower mold body is fixedly connected with an upper mold body, a hollow part between the lower mold body and the upper mold body is combined into a mold cavity, a plug groove is formed at the joint of the lower mold body and the upper mold body, which is close to the mold cavity, a sliding groove is formed at the joint of the lower mold body and the upper mold body, which is far away from the plug groove, the plug groove is in sliding connection with an air-permeable block, the air-permeable block is fixedly connected with an exhaust pipe, the exhaust pipe slides in the sliding groove, the exhaust pipe is rotationally connected with a locking block, a separation groove is formed at the joint of the upper mold body, which is far from the plug groove, the separation groove is communicated with the sliding groove, a separation block is arranged on the surface of the exhaust pipe, and the separation block slides in the separation groove. Through above-mentioned structure, through setting up ventilative jam, locking piece, blast pipe, can be with the interior remaining air discharge of mould in the injection molding process and make exhaust hole and product contact department have obvious deckle edge to improve product quality.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a multifunctional exhaust structure of an injection mold.
Background
When the injection mold is closed, part of gas is pressed into or remains in the cavity, and when the injection mold is injected, the air in the cavity cannot be completely discharged, so that the molten raw material entering the cavity is insufficient, and the quality of the product is disqualified.
The existing exhaust mode is that an opening is formed at the joint of the top surface of the lower die and the inner wall of the die cavity, then the molten raw material in the die cavity is extruded to extrude air for exhaust, but the formed opening can cause the molten raw material to overflow out of the die cavity, so that burrs are formed on the product, and the quality of the product is affected.
Disclosure of Invention
The utility model provides a multifunctional exhaust structure of an injection mold, which can exhaust air remained in the mold in the injection process and ensure that no obvious burrs exist at the contact part of an exhaust hole and a product, thereby improving the quality of the product.
In order to achieve the above purpose, the multifunctional exhaust structure of the injection mold comprises a lower mold body, wherein the upper surface of the lower mold body is fixedly connected with an upper mold body, a hollow part between the lower mold body and the upper mold body is combined into a mold cavity, a plug groove is formed in the joint of the lower mold body and the upper mold body, a sliding groove is formed in the joint of the lower mold body and the upper mold body, which is far away from the plug groove, the plug groove is in sliding connection with an air-permeable block, the air-permeable block is far away from an exhaust pipe fixedly connected with the mold cavity, the exhaust pipe slides in the sliding groove, and the exhaust pipe is rotationally connected with a locking block. The upper die body is arranged to be convenient to form a die cavity in cooperation with the lower die body, the bearing block is convenient to install, the die cavity is arranged to be convenient to install in a molded product, the plug groove is arranged to be convenient to install in a ventilation blocking mode, the ventilation blocking mode is arranged to be convenient to discharge residual air in an injection process and to block molten plastic in the die cavity, the molten plastic is prevented from entering the exhaust hole, the exhaust pipe is arranged to be convenient to discharge air in the die cavity and to be connected with the ventilation blocking mode, and the locking block is arranged to be convenient to lock the exhaust pipe on the same plane with the surface of the die cavity end and the die cavity when the upper die body and the lower die body are locked.
According to the multifunctional exhaust structure of the injection mold, the upper mold body is provided with a blocking groove far away from the plug groove, the blocking groove is communicated with the sliding groove, the surface of the exhaust pipe is provided with a blocking block, and the blocking block slides in the blocking groove. Through setting up the separation groove for be convenient for restrict the range of movement of blast pipe, be convenient for through setting up the spacer block and restrict the slip of blast pipe with the cooperation of separation groove.
According to the multifunctional exhaust structure of the injection mold, a square groove is formed in the joint of the lower mold body and the upper mold body, which is far away from the blocking groove, the cross section of the square groove can accommodate the locking block, and an exhaust hole is formed in the center of the exhaust pipe. The square groove is arranged to be convenient for accommodating the locking block, and the vent hole is arranged to be convenient for exhausting air of the die cavity through the vent hole.
According to the multifunctional exhaust structure of the injection mold, a fine hole is formed in one end, away from the locking block, of the exhaust pipe, the exhaust pipe is communicated with the fine hole, and the end, away from the fine hole, of the exhaust pipe is fixedly connected with the push-pull ring. The fine holes are arranged to facilitate the air in the exhaust holes to flow out of the fine holes, and the push-pull rings are arranged to facilitate the control of the forward and backward sliding of the exhaust pipe.
According to the multifunctional exhaust structure of the injection mold, the upper mold body is provided with a round hole, the upper mold body is fixedly connected with the bearing block, the bearing block is provided with an injection hole, and the injection hole is communicated with the round hole of the upper mold body. The injection holes are arranged to facilitate injection of molten plastic into the mold cavity and simultaneously facilitate cooperation with the push head.
According to the multifunctional exhaust structure of the injection mold, the injection hole is connected with the push head in a sliding manner, and the upper surface of the push head is fixedly connected with the injection rod. The push head is arranged to facilitate injection of molten plastic into the mold cavity, and the injection rod is arranged to facilitate connection of the pushing device.
According to the multifunctional exhaust structure of the injection mold, the injection rod is far away from the cylindrical surface of the push head and fixedly connected with the resistance ring, the diameter of the resistance ring is larger than that of the injection hole, and the distance between the resistance ring and the push head is consistent with the sum of the thicknesses of the receiving block and the upper mold body. The provision of the stop ring is intended to facilitate limiting the final position of the movement of the pusher.
The utility model has the beneficial effects that: through setting up ventilative jam, locking piece, blast pipe, can be with the interior remaining air of mould in the injection molding process discharge and make exhaust hole and product contact department have obvious deckle edge to improve product quality.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is an external overall structure diagram of a multifunctional exhaust structure of an injection mold according to the present utility model;
FIG. 2 is a schematic diagram of the internal structure of a multifunctional exhaust structure of an injection mold according to the present utility model;
FIG. 3 is a sectional view of the mounting position of a lock rod of the multifunctional exhaust structure of the injection mold;
FIG. 4 is a sectional view of the position of a receiving block of the multifunctional exhaust structure of the injection mold;
FIG. 5 is a cross-sectional view of the upper and lower mold sections of a multi-functional venting structure for an injection mold according to the present utility model;
fig. 6 is a block diagram of a conventional device according to the related art.
Legend description:
1. a lower die body; 2. an upper die body; 3. a receiving block; 4. an injection rod; 5. a resistance ring; 6. a square groove; 7. an exhaust pipe; 8. pushing the pull ring; 9. a locking block; 10. ventilation blocking; 11. a mold cavity; 12. a barrier block; 13. pushing heads; 14. an exhaust hole; 15. fine pores; 16. a barrier groove; 17. an injection hole; 18. a plug groove; 19. a sliding groove.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
Embodiment one:
referring to fig. 1-5, the embodiment of the utility model provides a multifunctional exhaust structure of an injection mold, which comprises a lower mold body 1, wherein the upper surface of the lower mold body 1 is fixedly connected with an upper mold body 2, a hollow part between the lower mold body 1 and the upper mold body 2 is combined into a mold cavity 11, a plug groove 18 is arranged at the joint of the lower mold body 1 and the upper mold body 2 and close to the mold cavity 11, a sliding groove 19 is arranged at the joint of the lower mold body 1 and the upper mold body 2 and far from the plug groove 18, a ventilation block 10 is connected with the plug groove 18 in a sliding manner, the ventilation block 10 is far from the mold cavity 11 and fixedly connected with an exhaust pipe 7, the exhaust pipe 7 slides in the sliding groove 19, the exhaust pipe 7 is rotationally connected with a locking block 9, the surface of the ventilation block 10 and the inner surface of the mold cavity 11 are in the same plane when molten plastic is injected, the locking block 9 can pass through a square groove 6 and the surface of the locking block 9 is far from a push pull ring 8 and the outer surface of the lower mold body 1 and the upper mold body 2 when the molten plastic is injected.
The upper die body 2 is provided with a blocking groove 16 far away from the plug groove 18, the blocking groove 16 is communicated with a sliding groove 19, the surface of the exhaust pipe 7 is provided with a blocking block 12, and the blocking block 12 slides in the blocking groove 16.
The junction of lower die body 1 and upper die body 2 is kept away from separation groove 16 and is provided with square groove 6, and square groove 6 cross section can hold the dead piece 9 of lock, and blast pipe 7 center is provided with exhaust hole 14, and blast pipe 7 is kept away from dead piece 9 one end and is provided with pore 15, and blast pipe 7 communicates with each other with pore 15, and blast pipe 7 is kept away from pore 15 place end fixed connection push-pull ring 8.
The upper die body 2 is provided with a round hole, the upper die body 2 is fixedly connected with the bearing block 3, the bearing block 3 is provided with an injection hole 17, the injection hole 17 is communicated with the round hole of the upper die body 2, the round hole of the upper die body 2 and the push head 13 are completely overlapped when molten plastic is injected, and the lower surface of the push head 13 is overlapped with the upper surface of the inner side of the upper die body 2.
The injection hole 17 is in sliding connection with the push head 13, the upper surface of the push head 13 is fixedly connected with the injection rod 4, the injection rod 4 is far away from the cylindrical surface of the push head 13 and is fixedly connected with the choke ring 5, the diameter of the choke ring 5 is larger than that of the injection hole 17, the distance between the choke ring 5 and the push head 13 is consistent with the sum of the thicknesses of the bearing block 3 and the upper die body 2, and the end surface of the choke ring 5 far away from the bearing block 3 is fixedly connected with the pressure device.
Embodiment two:
referring to fig. 6, in the prior art, a venting structure of a micro-foaming injection mold, having application number 201910816405.5, includes a venting needle 50 and a venting assembly 40, wherein the venting needle 50 is installed in the connecting hole 32, and the venting assembly 40 is disposed on the inclined surface 311. The exhaust assembly 40 comprises an exhaust shell 41, a baffle ball 42, a top seat 43, a spring 44, a fixing plate 45 and a sliding rod 46, wherein the exhaust shell 41 is installed on the inclined surface 311, the top seat 43 is slidably arranged in the exhaust shell 41, the baffle ball 42 is connected with one end of the top seat 43, one end of the baffle ball 42 abuts against an opening of one end inside the exhaust shell 41, the fixing plate 45 is arranged inside the exhaust shell 41, the sliding rod 46 is fixedly connected below the top seat 43, the sliding rod 46 is slidably sleeved with the spring 44, one end of the spring 44 abuts against the upper surface of the fixing plate 45, and the other end of the spring 44 abuts against the bottom surface of the top seat 43.
Conclusion: the first embodiment is provided with the ventilation block 10, the locking block 9 and the exhaust pipe 7, so that the effect of discharging the residual air in the mold in the injection molding process and enabling the contact part of the exhaust hole and the product to have no obvious burrs is achieved, thereby improving the product quality, and the second embodiment is provided with the exhaust assembly 40 and the exhaust needle 50, so that the technical problems of discharging the air from the gap and preventing the exhaust groove from being blocked are solved, but the technical effect achieved by the description scheme in the first embodiment is not achieved.
Working principle: before operation, the locking block 9 is rotated to be perpendicular to the square groove 6, the exhaust pipe 7 is fixed so that the exhaust pipe cannot slide in the sliding groove 19, a certain amount of molten plastic is then poured into the injection hole 17, then the injection rod 4 pushes the push head 13 to inject the molten plastic into the mold cavity 11, during the process, air in the mold cavity 11 flows into the exhaust hole 14 from the ventilation block 10 and finally is discharged from the fine hole 15, and the molten plastic cannot flow into the exhaust hole 14 from the ventilation block 10.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (7)
1. The utility model provides a multi-functional exhaust structure of injection mold, its characterized in that, including lower die body (1), die body (2) are gone up fixed surface to die body (1) down, cavity department combination is mould chamber (11) between die body (1) and the last die body (2) down, die body (1) are close to mould chamber (11) junction with last die body (2) and are provided with stopper groove (18), die body (1) are gone up die body (2) junction and are kept away from stopper groove (18) and are provided with sliding tray (19), stopper groove (18) sliding connection ventilative blocking (10), ventilative blocking (10) keep away from mould chamber (11) fixed connection blast pipe (7), and blast pipe (7) slide in sliding tray (19), blast pipe (7) rotate and connect locking piece (9).
2. The multifunctional exhaust structure of the injection mold according to claim 1, wherein the upper mold body (2) is provided with a blocking groove (16) away from the plug groove (18), the blocking groove (16) is communicated with the sliding groove (19), the surface of the exhaust pipe (7) is provided with a blocking block (12), and the blocking block (12) slides in the blocking groove (16).
3. The multifunctional exhaust structure of the injection mold according to claim 1, wherein a square groove (6) is arranged at the joint of the lower mold body (1) and the upper mold body (2) far away from the blocking groove (16), a locking block (9) can be accommodated in the cross section of the square groove (6), and an exhaust hole (14) is arranged in the center of the exhaust pipe (7).
4. The multifunctional exhaust structure of the injection mold according to claim 1, wherein a fine hole (15) is formed in one end, away from the locking block (9), of the exhaust pipe (7), the exhaust pipe (7) is communicated with the fine hole (15), and the end, away from the fine hole (15), of the exhaust pipe (7) is fixedly connected with a push-pull ring (8).
5. The multifunctional exhaust structure of the injection mold according to claim 1, wherein the upper mold body (2) is provided with a round hole, the upper mold body (2) is fixedly connected with the bearing block (3), the bearing block (3) is provided with an injection hole (17), and the injection hole (17) is communicated with the round hole of the upper mold body (2).
6. The multifunctional exhaust structure of the injection mold according to claim 5, wherein the injection hole (17) is slidably connected with a push head (13), and the upper surface of the push head (13) is fixedly connected with an injection rod (4).
7. The multifunctional exhaust structure of the injection mold according to claim 6, wherein the injection rod (4) is far away from the cylindrical surface of the push head (13) and fixedly connected with a blocking ring (5), the diameter of the blocking ring (5) is larger than that of the injection hole (17), and the distance between the blocking ring (5) and the push head (13) is consistent with the sum of the thicknesses of the bearing block (3) and the upper mold body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322468321.1U CN220742001U (en) | 2023-09-12 | 2023-09-12 | Multifunctional exhaust structure of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322468321.1U CN220742001U (en) | 2023-09-12 | 2023-09-12 | Multifunctional exhaust structure of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220742001U true CN220742001U (en) | 2024-04-09 |
Family
ID=90559644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322468321.1U Active CN220742001U (en) | 2023-09-12 | 2023-09-12 | Multifunctional exhaust structure of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220742001U (en) |
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2023
- 2023-09-12 CN CN202322468321.1U patent/CN220742001U/en active Active
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