CN215320325U - Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting - Google Patents
Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting Download PDFInfo
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- CN215320325U CN215320325U CN202122931302.9U CN202122931302U CN215320325U CN 215320325 U CN215320325 U CN 215320325U CN 202122931302 U CN202122931302 U CN 202122931302U CN 215320325 U CN215320325 U CN 215320325U
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Abstract
The utility model discloses an injection combined die for feeding glue into a hot runner on the end surface of a pipe fitting, which relates to the technical field of injection dies and comprises a fixed die component and a movable die component, wherein the fixed die component comprises a hot runner system and a plurality of fixed die forming components, the hot runner system is provided with a needle valve hot nozzle, the fixed die forming components are provided with inclined guide pillars, the movable die component is provided with a plurality of movable die forming sliding components and a matched first rear die core, the movable die forming sliding components comprise sliders and slider cores, the fixed die forming components, the movable die forming sliding components and the first rear die core form a wall thickness inner cavity of a right-angle pipe fitting, the needle valve hot nozzle is connected with the wall thickness inner cavity end surface of the right-angle pipe fitting, the movable die component moves away from the fixed die component, and the sliders slide along the inclined guide pillars to achieve the purpose that the right-angle pipe fitting is demoulded in an automatic falling mode. The utility model reduces the cold glue residue to the maximum extent, the pipe fitting product has no water gap print and is beautiful, meanwhile, the automatic demoulding of the pipe fitting product is realized, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an injection combined mold for feeding glue into a hot runner on the end surface of a pipe fitting.
Background
The injection molding technology is widely applied to the manufacturing of plastic pipe fittings, the common pipe fittings can realize demolding by adopting a common core pulling mode, but for elbow pipe fittings, the core pulling is difficult because of the simultaneous relation of a straight line and an arc surface, and the common injection mold cannot realize the core pulling; meanwhile, the existing elbow mould products occupy more space, generally only four cavities can be formed (namely, one mould can produce four products at a time), the core pulling structure is complex, the core pulling oil cylinder extends out of the mould for a long time, the outline dimension of the mould is very large, the specification requirement on the injection molding machine is very large, and the cost investment is very high.
Meanwhile, the runner of the injection mold is provided with a hot runner and a cold runner, the hot runner is insulated by adopting a method of heating the interior or the exterior of the mold, so that the plastic in the hot runner is always kept in a molten state, and the molten plastic in a pouring system is not solidified and does not generate waste materials in the injection process, so that the automatic high-speed injection molding is realized, but the mold of the hot runner is provided with a heating device inside or outside, so that the structure is complex, the runner is troublesome to process, and the manufacturing cost is increased; the injection mold with the cold runner can simultaneously cool and solidify the plastic in the cold runner and the product after the product is subjected to injection molding each time, so that the waste in the cold runner and the product need to be demolded together after the product is subjected to injection molding and mold opening each time, and particularly, the injection mold with multiple cavities generates more waste.
Application number CN202020687244.2, the name is "a chinese utility model for generating multicavity hot runner mold of 45 degrees elbow PVC pipe fittings", adopt hot runner system and local little cold runner structural design, be close to the product with hot runner system's big mouth of a river hot nozzle position distribution, advance to glue the mould cavity of 45 degrees elbow PVC pipe fittings through little cold runner of segment length, satisfy the technological requirement of saving mouth of a river material in the mould injection molding condition, the production efficiency and the product shaping quality that the product was moulded plastics have been improved. However, the utility model still has the cold runner with a small segment length to enter the glue and waste the nozzle material and rely on the demoulding thimble to demould, and the working efficiency is still lower and affects the appearance quality of the product.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the technical problem solved by the utility model is how to further reduce the waste of the nozzle material and further improve the working efficiency and the appearance quality of the product.
In order to solve the technical problems, the utility model adopts the technical scheme that the injection combined die for feeding the hot runner into the glue on the end surface of the pipe fitting comprises a fixed die component and a movable die component, wherein the fixed die component comprises a hot runner system and a plurality of fixed die forming components, the hot runner system is provided with a needle valve hot nozzle, the fixed die forming components are provided with inclined guide pillars, the movable die component is provided with a plurality of movable die forming sliding components and a matched first rear die core, the movable die forming sliding components comprise sliding blocks and sliding block cores, the sliding block cores are fixed on the inner sides of the sliding blocks, the sliding block cores are in sliding connection with the first rear die core, the movable die forming sliding components are provided with sliding blocks, the fixed die forming components, the movable die forming sliding components and the first rear die core are combined to form a right-angle pipe fitting inner cavity, the needle valve hot nozzle is connected with the wall thickness inner cavity end surface of the right-angle pipe fitting, the movable die part moves away from the fixed die part, and the sliding block slides along the inclined guide post to realize the demoulding of the right-angle pipe fitting in an automatic falling mode.
The cover half part still includes front bezel, carrier plate, panel, the front bezel bottom surface is connected fixedly cover half mould forming assembly and central authorities have seted up a plurality of hot mouth through-holes, the front bezel top is equipped with carrier plate, panel in proper order and passes through the screw fixation, carrier plate central authorities have seted up the heavy platform of carrier plate, set up on the heavy platform of carrier plate with the heavy platform through-hole of carrier plate that the hot mouth through-hole corresponds.
The fixed die forming assembly comprises an inclined guide post, a front die core and a front die core, the inner end of the front die core is fixed to the front die core and provided with an outward inclined through hole, the front die core is inserted into the right-angle pipe fitting, and the inclined guide post is downwards and outwards fixed to the lower portion of the front die frame and penetrates through the inclined through hole.
The hot runner system includes needle valve hot nozzle, hot nozzle flow distribution plate, sprue and holding ring, the hot nozzle flow distribution plate is established in the heavy platform of carrier plate, its top is equipped with sprue and holding ring, the holding ring is fixed on the panel top surface, the needle valve hot nozzle is established hot nozzle flow distribution plate bottom surface just passes the heavy platform of carrier plate hot nozzle through-hole.
The movable mould part further comprises a second rear mould core, a rear mould frame and a bottom plate, a through hole is formed in the center of the rear mould frame, the first rear mould core is embedded in the upper portion of the through hole, a bottom plate sinking platform is formed in the center of the bottom plate, the upper portion of the second rear mould core is embedded in the through hole, the lower portion of the second rear mould core is connected with the top surface of the through hole, and the lower portion of the second rear mould core is embedded in the bottom plate sinking platform.
The movable mould part further comprises a slide block limiting block, and the slide block limiting block is arranged on the outer frame of the rear mould frame and on the outer side of the slide block.
Compared with the prior art, the utility model adopts the mode that the hot nozzle of the hot runner needle valve is connected with the top surface of the pipe fitting wall, thereby reducing the cold glue residue to the maximum extent, ensuring the pipe fitting product to have no water gap print and to be beautiful, simultaneously adopting the direction of the inclined guide post to guide the slide block to slide along the inclined guide post for demoulding, avoiding the ejection and demoulding of the product thimble, realizing the automatic demoulding of the pipe fitting product by utilizing the gravity of the product, and improving the working efficiency.
Drawings
FIG. 1 is a front view of an injection mold assembly of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of FIG. 2 at section C;
FIG. 4 is a cross-sectional view B-B of FIG. 1;
FIG. 5 is a perspective view of a hot runner system of the injection mold assembly;
FIG. 6 is a front view of a movable mold for molding a sliding block of the sliding assembly;
FIG. 7 is a rear view of the movable mold die forming slide assembly slide block after the mold is opened;
FIG. 8 is a product view after the fixed mold part and the movable mold part are opened;
FIG. 9 is a diagram of the position relationship between the hot nozzle of the needle valve of the hot runner system and the product;
FIG. 10 is a perspective view of the injection mold assembly of the present invention;
FIG. 11 is an exploded view of the injection mold assembly of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings, but the present invention is not limited thereto.
FIGS. 1 to 7 and 9 to 11 show an injection combined mold for injecting glue into a hot runner on the end surface of a pipe fitting, which comprises a fixed mold part 1 and a movable mold part 2, wherein the fixed mold part 1 comprises a hot runner system 11 and a plurality of fixed mold forming components 12, the hot runner system 11 is provided with a needle valve hot nozzle 111, and is characterized in that the fixed mold forming component 12 is provided with an inclined guide pillar 121, the movable mold part 2 is provided with a plurality of movable mold forming sliding components 21 and a matched first rear mold core 22, the movable mold forming sliding components 21 comprise a slide block 211 and a slide block core 212, the slide block core 212 is fixed on the inner side of the slide block 211, the slide block core 212 is connected with the first rear mold core 22 in a sliding manner, the movable mold forming sliding components 21 are provided with slide blocks 211, the fixed mold forming components 12, the movable mold forming sliding components 21 and the first rear mold core 22 are combined to form a wall thickness inner cavity of a right-angle pipe fitting 3, the needle valve hot nozzle 111 is connected with the wall thickness inner cavity end surface of the right-angle pipe fitting 3, the movable mold part 2 moves away from the fixed mold part 1, and the slide block 211 slides along the inclined guide post 121 to realize the demolding of the right-angle pipe fitting in an automatic falling mode.
The fixed die component 1 further comprises a front die frame 13, a bearing plate 14 and a panel 15, the bottom surface of the front die frame 13 is connected with a fixed die forming assembly 12, the center of the front die frame is provided with a plurality of hot nozzle through holes 131, the bearing plate 14 and the panel 15 are sequentially arranged above the front die frame 13 and fixed through screws, the center of the bearing plate 14 is provided with a bearing plate sinking table, and the bearing plate sinking table is provided with a bearing plate sinking table through hole corresponding to the hot nozzle through hole 131.
The fixed die forming component 12 comprises an inclined guide post 121, a front die core 122 and a front die core 123, the inner end of the front die core 122 is fixed on the front die core 123 and is provided with an outward inclined through hole, the front die core 123 is inserted into the right-angle pipe fitting 3, and the inclined guide post 121 is downwards and outwards fixed on the lower portion of the front die frame 13 and runs through the inclined through hole.
The hot runner system 11 comprises a needle valve hot nozzle 111, a hot nozzle flow distribution plate 112, a feeding port 113 and a positioning ring 114, wherein the hot nozzle flow distribution plate 112 is arranged in the bearing plate sinking platform, the top of the hot nozzle flow distribution plate is provided with the feeding port 113 and the positioning ring 114, the positioning ring 114 is fixed on the top surface of the panel 15, and the needle valve hot nozzle 111 is arranged on the bottom surface of the hot nozzle flow distribution plate 112 and penetrates through a hot nozzle through hole 131 of the bearing plate sinking platform.
The movable mold part 2 further comprises a second rear mold core 23, a rear mold frame 24 and a bottom plate 25, a through hole is formed in the center of the rear mold frame 24, the first rear mold core 22 is embedded in the upper portion of the through hole, a bottom plate sinking table 251 is formed in the center of the bottom plate 25, the upper portion of the second rear mold core 23 is embedded in the lower portion of the through hole, the top surface of the second rear mold core is connected with the bottom surface of the first rear mold core 22, and the lower portion of the second rear mold core is embedded in the bottom plate sinking table 251.
The movable mold part 2 further comprises a slide block limiting block 26, and the slide block limiting block 26 is arranged on the outer frame of the rear mold frame 24 and on the outer side of the slide block 211 to limit the slide block 211 from sliding out.
When the utility model works, plastic in a molten state is injected from the injection port 113, and flows into the needle valve hot nozzle 111 through the hot nozzle flow distribution plate 112 in a flow distribution manner and then enters the wall thickness inner cavity of the right-angle pipe fitting 3 for cooling and forming, because the needle valve hot nozzle 111 is infinitely close to the wall thickness inner cavity end face of the right-angle pipe fitting 3, cold glue residue is reduced to the maximum extent, when demoulding is carried out, the movable mould part 2 moves away from the fixed mould part 1, the slide block 211 slides along the inclined guide post 121 arranged on the fixed mould forming assembly 12 to drive the slide block core 212 to withdraw from the inside of the pipe fitting 3 outwards, and under the condition that the supporting effect of the slide block core 212 is lost, the pipe fitting 3 automatically falls off to realize automatic demoulding as shown in fig. 8 because the cold glue residue at the water gap on the other end face of the pipe fitting is very little and cannot support the weight of the right-angle pipe fitting 3.
Compared with the prior art, the utility model adopts the mode that the hot nozzle of the hot runner needle valve is connected with the top surface of the pipe fitting wall, thereby reducing the cold glue residue to the maximum extent, ensuring the pipe fitting product to have no water gap print and to be beautiful, simultaneously adopting the direction of the inclined guide post to guide the slide block to slide along the inclined guide post for demoulding, avoiding the ejection and demoulding of the product thimble, realizing the automatic demoulding of the pipe fitting product by utilizing the gravity of the product, and improving the working efficiency.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model.
Claims (6)
1. The utility model provides a pipe fitting terminal surface hot runner advances gluey combination of moulding plastics mould, includes cover half part (1) and movable mould part (2), cover half part (1) includes hot runner system (11) and a plurality of cover half mould shaping subassembly (12), hot runner system (11) is provided with needle valve hot mouth (111), its characterized in that, cover half mould shaping subassembly (12) are equipped with oblique guide pillar (121), movable mould part (2) are provided with a plurality of movable mould shaping sliding assembly (21) and supporting first back mold core (22), movable mould shaping sliding assembly (21) include slider (211) and slider core (212), slider core (212) are fixed slider (211) inboard, slider core (212) with first back mold core (22) sliding connection, movable mould shaping sliding assembly (21) are provided with slider (211), the fixed die mold forming assembly (12), the movable die mold forming sliding assembly (21) and the first rear die core (22) are combined to form a wall thickness inner cavity of the right-angle pipe fitting (3), the needle valve hot nozzle (111) is connected with the wall thickness inner cavity end face of the right-angle pipe fitting (3), the movable die component (2) is far away from the fixed die component (1) to move, and a sliding block (211) of the movable die component slides along the inclined guide post (121).
2. The injection molding assembling die for the hot runner glue feeding of the pipe fitting end surface according to claim 1 is characterized in that the fixed die part (1) further comprises a front die frame (13), a bearing plate (14) and a panel (15), the bottom surface of the front die frame (13) is fixedly connected with the fixed die forming assembly (12), the center of the fixed die forming assembly is provided with a plurality of hot nozzle through holes (131), the bearing plate (14) and the panel (15) are sequentially arranged above the front die frame (13) and fixed through screws, the center of the bearing plate (14) is provided with a bearing plate sinking table, and the bearing plate sinking table is provided with a bearing plate sinking table through hole corresponding to the hot nozzle through hole (131).
3. The injection molding combination die for hot runner glue feeding on the end surface of the pipe fitting as claimed in claim 2, wherein the fixed die forming assembly (12) comprises an inclined guide post (121), a front die core (122) and a front die core (123), the inner end of the front die core (122) is fixed on the front die core (123) and is provided with an outward inclined through hole, the front die core (123) is inserted into the right-angle pipe fitting (3), and the inclined guide post (121) is fixed on the lower portion of the front die frame (13) and penetrates through the inclined through hole.
4. The pipe fitting end face hot runner glue feeding injection molding assembling die of claim 2, characterized in that the hot runner system (11) comprises a needle valve hot nozzle (111), a hot nozzle flow distribution plate (112), a filling opening (113) and a positioning ring (114), wherein the hot nozzle flow distribution plate (112) is arranged in the bearing plate sinking platform, the top of the hot nozzle flow distribution plate is provided with the filling opening (113) and the positioning ring (114), the positioning ring (114) is fixed on the top face of the panel (15), the needle valve hot nozzle (111) is arranged on the bottom face of the hot nozzle flow distribution plate (112) and penetrates through the hot nozzle through hole (131) of the bearing plate sinking platform.
5. The injection molding combination die for hot runner glue feeding on the end surfaces of pipe fittings as claimed in claim 1, wherein the movable die part (2) further comprises a second rear die core (23), a rear die frame (24) and a bottom plate (25), a through hole is formed in the center of the rear die frame (24), the first rear die core (22) is embedded in the upper portion of the through hole, a bottom plate sinking table (251) is formed in the center of the bottom plate (25), the upper portion of the second rear die core (23) is embedded in the lower portion of the through hole, the top surface of the second rear die core is connected with the bottom surface of the first rear die core (22), and the lower portion of the second rear die core is embedded in the bottom plate sinking table (251).
6. The injection molding assembling die for the hot runner glue feeding of the pipe fitting end surface according to claim 5 is characterized in that the movable die part (2) further comprises a slide block limiting block (26), and the slide block limiting block (26) is arranged on the outer frame of the rear die frame (24) and on the outer side of the slide block (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122931302.9U CN215320325U (en) | 2021-11-26 | 2021-11-26 | Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122931302.9U CN215320325U (en) | 2021-11-26 | 2021-11-26 | Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting |
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| Publication Number | Publication Date |
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| CN215320325U true CN215320325U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122931302.9U Active CN215320325U (en) | 2021-11-26 | 2021-11-26 | Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347406A (en) * | 2022-01-24 | 2022-04-15 | 台州市黄岩炜大塑料机械有限公司 | Product and material handle automatic separation inscribe mechanism of pipe fitting injection mold |
| CN115556310A (en) * | 2022-09-30 | 2023-01-03 | 临海伟星新型建材有限公司 | A multi-cavity elbow forming mold without ejector pin and its operation method |
-
2021
- 2021-11-26 CN CN202122931302.9U patent/CN215320325U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347406A (en) * | 2022-01-24 | 2022-04-15 | 台州市黄岩炜大塑料机械有限公司 | Product and material handle automatic separation inscribe mechanism of pipe fitting injection mold |
| CN115556310A (en) * | 2022-09-30 | 2023-01-03 | 临海伟星新型建材有限公司 | A multi-cavity elbow forming mold without ejector pin and its operation method |
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