CN220681486U - Injection mold without water port - Google Patents
Injection mold without water port Download PDFInfo
- Publication number
- CN220681486U CN220681486U CN202322373861.1U CN202322373861U CN220681486U CN 220681486 U CN220681486 U CN 220681486U CN 202322373861 U CN202322373861 U CN 202322373861U CN 220681486 U CN220681486 U CN 220681486U
- Authority
- CN
- China
- Prior art keywords
- sprue bush
- cavity
- material passing
- mold plate
- runner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 7
- 239000000463 material Substances 0.000 claims abstract description 31
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 2
- 239000011344 liquid material Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a water-free injection mold, which is modified on the traditional mold to realize the function of a hot runner mold and realize water-free injection, and the technical scheme is as follows: the injection mold comprises a panel, a sprue bush, an upper mold plate and a lower mold plate, wherein an insert is fixed on one side, close to the lower mold plate, of the upper mold plate, a groove is formed on one side, close to the upper mold plate, of the lower mold plate, the insert is matched with the groove to form a cavity, and a material passing concave cavity communicated with the cavity is formed on the insert; the sprue bush sequentially passes through the panel and the upper template and is connected with the material passing concave cavity; the sprue bush is electrically connected with an external power supply through a connecting wire so that the sprue bush can emit heat; the panel is provided with a wire slot for accommodating the connecting wire, and belongs to the technical field of injection molding processing.
Description
Technical Field
The utility model belongs to the technical field of injection molding, and particularly relates to a water-free injection mold.
Background
At present, a traditional injection mold comprises a panel, a sprue bush, an upper mold plate and a lower mold plate, wherein an insert is fixed on one side of the upper mold plate, which is close to the lower mold plate, a groove is formed on one side of the lower mold plate, which is close to the upper mold plate, the insert is matched with the groove to form a cavity, a feed port is formed in the panel, the sprue bush penetrates through the upper mold plate and the insert to communicate the feed port with the cavity, a liquid material is injected into the cavity through the feed port by an injection molding machine, and a product is molded through pressure maintaining and cooling; however, since the runner has no heating function, the liquid material remained in the sprue bush is solidified to form a sprue during the cooling process, so that the product molded by the traditional mold is utilized, and a sprue removing process is needed after injection molding is completed;
with the technical development, a hot runner injection mold is developed, and a unique design is utilized, a corresponding runner is arranged in an upper die plate, so that the upper die plate can be heated, the hot runner can keep temperature, liquid materials in the runner can not be solidified, and therefore, a molded product has no water gap; however, replacement of such a mold is costly and requires discarding of the previous conventional injection mold;
therefore, the technical problem to be solved by the application is as follows: how to make the traditional mould realize the injection molding without water port.
Disclosure of Invention
The utility model mainly aims to provide a water-free injection mold, which can realize the function of a hot runner mold and realize water-free injection by modifying a traditional mold.
According to a first aspect of the utility model, there is provided a water-free injection mold, comprising a panel, a sprue bush, an upper mold plate and a lower mold plate, wherein an insert is fixed on one side of the upper mold plate, which is close to the lower mold plate, a groove is arranged on one side of the lower mold plate, which is close to the upper mold plate, the insert is matched with the groove to form a cavity, and a material passing cavity communicated with the cavity is arranged on the insert;
the sprue bush sequentially passes through the panel and the upper template and is connected with the material passing concave cavity;
the sprue bush is electrically connected with an external power supply through a connecting wire so that the sprue bush can emit heat; the panel is provided with a wire slot for accommodating the connecting wire.
In the water-free injection mold, a first runner and a second runner are arranged in the sprue bush, the first runner and the second runner are sequentially abutted along the direction close to the cavity, and the inner diameter of the first runner is larger than that of the second runner.
In the water-free-port injection mold, the material passing concave cavity comprises annular cambered surfaces and material passing holes which are in butt joint in sequence, and the annular cambered surfaces are arranged on one side of the material passing holes away from the cavity;
one end of the sprue bush, which is close to the cavity, is a conical tip, and the conical tip extends into the material passing hole.
In the water-free injection mold, the sprue bush is provided with the annular flange around the conical tip, the material passing concave cavity is provided with the annular groove matched with the annular flange, and the annular groove is in butt joint with one end of the annular cambered surface, which is far away from the material passing hole.
In the water-free injection mold, the periphery of the sprue bush is provided with the positioning pin shaft, and the panel is provided with the clamping groove matched with the positioning pin shaft.
In the water-free port injection mold, the clamping groove and the wire groove are oppositely arranged.
One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects:
in the utility model, the structure of the sprue bush is optimized, the panel, the upper template and the insert are modified, the sprue bush is electrically connected with an external power supply by using the connecting wires, and the sprue bush can generate heat after being electrified, so that the runner in the sprue bush can keep temperature, and liquid materials can not solidify in the sprue bush, therefore, a formed product can not carry a water gap, and the function of the hot runner mold can be realized without changing the hot runner mold based on the structure, thereby greatly reducing the cost.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a schematic view of a first embodiment of the present utility model;
fig. 2 is a structural sectional view of a first embodiment of the present utility model;
fig. 3 is a partial enlarged view at a of fig. 2 of a first embodiment of the present utility model.
Wherein reference numerals for the respective figures:
1. a panel; 11. a wire slot; 12. a clamping groove; 2. a sprue bush; 21. a first flow passage; 22. a second flow passage; 23. an annular flange; 24. positioning pin shafts; 3. an upper template; 4. a lower template; 5. an insert; 51. a cavity for passing material; 511. an annular cambered surface; 512. a material passing hole; 513. an annular groove; 6. a cavity; 7. and (5) connecting wires.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.
Referring to fig. 1 to 3, in one embodiment of the present utility model, a water-free injection mold includes a panel 1, a sprue bush 2, an upper mold plate 3 and a lower mold plate 4, wherein an insert 5 is fixed on one side of the upper mold plate 3 close to the lower mold plate 4, a groove is formed on one side of the lower mold plate 4 close to the upper mold plate 3, the insert 5 is matched with the groove to form a cavity 6, and a material passing cavity 51 communicated with the cavity 6 is formed on the insert 5; the sprue bush 2 sequentially passes through the panel 1 and the upper template 3 and is connected with the blanking cavity 51; the sprue bush 2 is electrically connected with an external power supply through a connecting wire 7 so that the sprue bush 2 can generate heat;
the structure of the sprue bush 2 is optimized, the panel 1, the upper template 3 and the insert 5 are modified, the sprue bush 2 is electrically connected with an external power supply by utilizing the connecting wire 7, and after the sprue bush 2 is electrified, the sprue bush 2 can generate heat, so that the internal runner of the sprue bush is kept at the temperature, liquid materials cannot be solidified in the sprue bush 2, therefore, a formed product cannot carry a water gap, and the function of the hot runner mold can be realized without replacing the hot runner mold based on the structure, so that the cost is greatly reduced.
In this embodiment, the panel 1 is provided with a wire slot 11 for receiving the connection wire 7; the connection lines 7 may be hidden so that the connection lines 7 may follow the movement of the panel 1, avoiding that the connection lines 7 are clamped.
In this embodiment, a first runner 21 and a second runner 22 are provided in the sprue bush 2, the first runner 21 and the second runner 22 are sequentially butted along the direction close to the cavity 6, and the inner diameter of the first runner 21 is larger than the inner diameter of the second runner 22; when the material is injected, the liquid material firstly enters the first runner 21 and then enters the second runner 22, and is sprayed into the cavity 6 by the first runner 21, and the inner diameter of the first runner 21 is larger than that of the second runner 22, so that the flow speed of the liquid material is accelerated after the liquid material enters the second runner 22, and the liquid material can be further rapidly filled into the cavity 6.
In this embodiment, the material passing concave cavity 51 includes an annular arc surface 511 and a material passing hole 512 which are in butt joint in sequence, and the annular arc surface 511 is arranged at one side of the material passing hole 512 away from the cavity 6;
one end of the sprue bush 2 close to the cavity 6 is a conical tip, and the conical tip extends into the material passing hole 512;
the second runner 22 passes through the conical tip to open the end of the conical tip to form a glue injection port, and the liquid material is injected from the glue injection port and is injected into the cavity 6 through the material passing hole 512; with this structure, a certain gap is formed between the end of the conical tip and the cavity 6, and the sprue bush 2 is continuously heated, so that the liquid material only contacts the material passing hole 512 when the cavity 6 is formed, and does not adhere to the conical tip, thereby ensuring that the injection-molded product has no water gap.
In this embodiment, the sprue bush 2 is provided with an annular flange 23 around the conical tip, the material passing cavity 51 is provided with an annular groove 513 matched with the annular flange 23, the annular groove 513 is in butt joint with one end of the annular cambered surface 511 away from the material passing hole 512, the annular flange 23 needs to be coaxially arranged with the annular groove 513, the outer wall of the annular flange 23 contacts the inner wall of the annular groove 513, positioning is achieved, and the conical tip can be used for feeding the material passing hole 512.
In the embodiment, a positioning pin 24 is arranged on the periphery of the sprue bush 2, and a clamping groove 12 matched with the positioning pin 24 is arranged on the panel 1; when the positioning pin shaft 24 is clamped into the clamping groove 12, the sprue bush 2 cannot rotate, so that the preliminary positioning of the sprue bush 2 is realized;
meanwhile, the clamping groove 12 and the wire groove 11 are oppositely arranged, so that the processing is convenient, the sprue bush 2 is placed to rotate due to the positioning pin shaft 24, the connecting wire 7 in the wire groove 11 is not pulled and bent, and the connecting wire 7 can be prevented from being damaged.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. The water-free injection mold is characterized by comprising a panel, a sprue bush, an upper mold plate and a lower mold plate, wherein an insert is fixed on one side of the upper mold plate, which is close to the lower mold plate, a groove is formed on one side of the lower mold plate, which is close to the upper mold plate, the insert is matched with the groove to form a cavity, and a material passing concave cavity communicated with the cavity is formed on the insert;
the sprue bush sequentially passes through the panel and the upper template and is connected with the material passing concave cavity;
the sprue bush is electrically connected with an external power supply through a connecting wire so that the sprue bush can emit heat; the panel is provided with a wire slot for accommodating the connecting wire.
2. The water-free injection mold of claim 1, wherein a first runner and a second runner are arranged in the sprue bush, the first runner and the second runner are sequentially butted along a direction close to the cavity, and the inner diameter of the first runner is larger than the inner diameter of the second runner.
3. The water-free port injection mold of claim 1, wherein the material passing concave cavity comprises an annular cambered surface and a material passing hole which are in butt joint in sequence, and the annular cambered surface is arranged on one side of the material passing hole away from the cavity;
one end of the sprue bush, which is close to the cavity, is a conical tip, and the conical tip extends into the material passing hole.
4. A water-free mouth injection mold according to claim 3, wherein the sprue bush is provided with an annular flange around the conical tip, the material passing concave cavity is provided with an annular groove matched with the annular flange, and the annular groove is in butt joint with one end of the annular cambered surface away from the material passing hole.
5. The water-free port injection mold of claim 1, wherein a positioning pin is arranged on the periphery of the sprue bush, and a clamping groove matched with the positioning pin is arranged on the panel.
6. The water-free injection mold of claim 5 wherein the clamping groove is disposed opposite the wire groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322373861.1U CN220681486U (en) | 2023-08-31 | 2023-08-31 | Injection mold without water port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322373861.1U CN220681486U (en) | 2023-08-31 | 2023-08-31 | Injection mold without water port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220681486U true CN220681486U (en) | 2024-03-29 |
Family
ID=90377112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322373861.1U Active CN220681486U (en) | 2023-08-31 | 2023-08-31 | Injection mold without water port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220681486U (en) |
-
2023
- 2023-08-31 CN CN202322373861.1U patent/CN220681486U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220681486U (en) | Injection mold without water port | |
| CN203792667U (en) | Injection mold | |
| CN201677470U (en) | Hot runner nozzle mechanism | |
| CN205835941U (en) | Plastic extruder with vacuum extractor | |
| CN219486432U (en) | Mould adopting hidden ox horn water inlet structure | |
| CN206277590U (en) | Flange mould | |
| CN202357402U (en) | Water transporting sleeve for hot runner system of injection mold | |
| CN210082304U (en) | Single-nozzle structure of injection mold | |
| CN212826613U (en) | Novel hot runner structure | |
| CN214521665U (en) | New generation single point needle valve | |
| CN210082308U (en) | Hot runner nozzle | |
| CN221161310U (en) | Mould advances gluey extension device | |
| CN208305684U (en) | A kind of click-through gluing mechanism | |
| CN105946200A (en) | Plastic extruder with vacuumizing device | |
| CN212372605U (en) | Multi-section heating single-hot-nozzle hot runner system | |
| CN212948951U (en) | Combined flow distribution plate structure and hot runner system | |
| CN213533611U (en) | Sprue with short-distance flow channel and glue injection structure capable of improving product processing quality | |
| CN206999523U (en) | Glue TOP-TIP is entered in a kind of adjustable side of nozzle core | |
| CN216708170U (en) | Injection mold for decorative ring of automobile double-color air outlet | |
| CN201530099U (en) | Hot-runner nozzle convenient for sealing smelt | |
| CN220946456U (en) | Side glue feeding hot nozzle | |
| CN219583438U (en) | A scattered gum needle and mould for mould sprue | |
| CN216609864U (en) | PVC pipe fitting point gate full hot runner mold | |
| CN220429113U (en) | Blade mold with full-circumference glue inlet gate breakpoint and no residue | |
| CN210791893U (en) | Hot runner system butt joint structure special for laminated mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |