CN220499807U - Automobile brake lamp outer lens injection molding device - Google Patents
Automobile brake lamp outer lens injection molding device Download PDFInfo
- Publication number
- CN220499807U CN220499807U CN202321165501.6U CN202321165501U CN220499807U CN 220499807 U CN220499807 U CN 220499807U CN 202321165501 U CN202321165501 U CN 202321165501U CN 220499807 U CN220499807 U CN 220499807U
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- Prior art keywords
- injection molding
- cooling
- loop
- needle valve
- outer lens
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 36
- 238000001816 cooling Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- 239000003292 glue Substances 0.000 abstract description 9
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an injection molding device for an outer lens of an automobile high-mounted brake lamp, which comprises a mold, an injection molding controller and a time sequence controller, wherein the mold is provided with an inner cavity for molding a product, at least two needle valve hot nozzles and a switch loop connected with the needle valve hot nozzles, the injection molding controller is used for controlling mold closing or mold opening of the mold and controlling the needle valve hot nozzle to spray glue, the switch loop comprises an electromagnetic valve and a pneumatic loop or an oil-driven loop connected with the electromagnetic valve, the time sequence controller is electrically connected with the injection molding controller and the electromagnetic valve, the number of the pneumatic loop or the oil-driven loop corresponds to the needle valve hot nozzles, and the pneumatic loop or the oil-driven loop is connected with the needle valve hot nozzles in a one-to-one correspondence manner so as to control the opening/closing state of the corresponding needle valve hot nozzle. The sequential controller is connected with the injection controller and the switch loop, so that the needle valve hot nozzle can be controlled to be sequentially opened or closed, the glue stock is prevented from forming welding marks at the junction, and the quality of products is improved.
Description
Technical Field
The utility model relates to the technical field of manufacturing processes of outer lenses of automobile brake lamps, in particular to an injection molding device of an outer lens of an automobile high-order brake lamp.
Background
The injection molding is generally performed through a runner and a glue inlet of an injection mold, the flow characteristic of plastic cannot be effectively controlled, the plastic enters the inner cavity of the mold from the glue inlet to flow towards two ends, when the plastic passes through the inner wall of the mold and the plastic of other glue inlets in the process of advancing, the plastic cools down, the fluidity of the plastic is reduced, and finally, the defects such as weld mark bonding lines, flow marks and the like of a finished injection molded product of the mold can be possibly caused.
In the production of the existing 12-lamp-body automobile LED high-mount brake lamp outer lens, as the outer lens belongs to a strip-shaped product, more than two pouring inlets are usually designed on the die. In the injection molding process, when two pouring gates feed glue simultaneously, the flow characteristic of plastic cannot be effectively controlled, the plastic is cooled by the inner wall of a die and the plastic in the process of running, the fluidity of the plastic is reduced, the plastic stops flowing at the position where two plastic flows meet, welding marks are easily generated after molding, one or more bonding lines are formed, the quality of molded products is affected, defects are caused in the products, a plurality of products are scrapped in the production process, and the production efficiency is also affected.
Disclosure of Invention
The utility model aims to provide an injection molding device for an outer lens of an automobile high-mounted brake lamp, which improves the quality of products.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides an injection molding device for an outer lens of an automobile high-mounted brake lamp, which comprises a mold and an injection molding controller, wherein the mold is provided with an inner cavity for molding a product, at least two needle valve hot nozzles distributed along the longitudinal direction of the inner cavity, and a switch loop connected with the needle valve hot nozzles for realizing the opening or closing of the needle valve hot nozzles, the injection molding controller is used for controlling the mold to be closed or opened and controlling the needle valve hot nozzles to spray glue, the injection molding device also comprises a time sequence controller, the switch loop comprises an electromagnetic valve and a pneumatic loop or an oil-driven loop connected with the electromagnetic valve, the time sequence controller is electrically connected with the injection molding controller and the electromagnetic valve, the number of the pneumatic loop or the oil-driven loop corresponds to the needle valve hot nozzles, and the pneumatic loop or the oil-driven loop is connected with the needle valve hot nozzles in a one-to-one correspondence manner so as to control the opening/closing state of the corresponding needle valve hot nozzles.
In one embodiment, the mold is further provided with a cooling water channel, and the cooling water channel is arranged at a position corresponding to the inner cavity.
In one embodiment, the cooling water path comprises a plurality of pipes arranged on the die, and the pipes are used for conveying cooling water.
In one embodiment, the plurality of tubes are uniformly arranged along the longitudinal direction of the inner cavity.
In one embodiment, the mold comprises a front mold core and a rear mold core, wherein the pipelines are arranged on the front mold core and the rear mold core, and the number of the pipelines on the front mold core is larger than that of the pipelines on the rear mold core.
In one embodiment, the front mold core is provided with a plurality of first cooling groups, one ends of every two pipelines are connected to form a first cooling group, and the other ends of the two pipelines are respectively used as a first water inlet and a second water outlet of the first cooling group.
In one embodiment, the rear mold core is provided with two second cooling groups, each second cooling group comprises three pipelines which are communicated with each other, and the second cooling group is provided with a second water inlet and a second water outlet for cooling water.
In one embodiment, in each second cooling group, one end of the first pipeline is provided with a second water inlet, the other end of the first pipeline is connected to one end of the third pipeline, the other end of the third pipeline is connected with one end of the second pipeline, and the other end of the second pipeline is connected with the second water outlet.
In one embodiment, the second cooling group further comprises an extension tube, wherein the projection of the extension tube on the inner cavity is at least partially overlapped with the second pipeline, one end of the extension tube is connected with the water outlet of the second pipeline, and the other end of the extension tube is used as the second water outlet.
The technical scheme provided by the utility model has the beneficial effects that:
1. according to the injection molding device for the outer lens of the automobile high-order brake lamp, the time sequence controller is arranged to be connected with the injection molding controller and the switch loop, so that the needle valve hot nozzle can be controlled to be sequentially opened or closed, welding marks formed at the junction of rubber materials are avoided, and the quality of products is improved.
2. Through setting the cooling system into multiunit cooling group, through synchronous fortune water, can improve the cooling effect, avoid the product to take place shrink or deformation phenomenon, further improve product quality. In addition, the number of the cooling pipelines on the front die core and the rear die core is unequal, so that the number of the pipelines is reduced on the premise of ensuring the cooling effect, and waste and excessive cooling are avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments of the present utility model will be briefly described below.
FIG. 1 is a perspective view of an injection molding device for an outer lens of an automobile brake light according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a front mold according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a rear mold insert according to an embodiment of the utility model.
Detailed Description
Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the utility model is susceptible of embodiment in the drawings, it is to be understood that the utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the utility model. It should be understood that the drawings and embodiments of the utility model are for illustration purposes only and are not intended to limit the scope of the present utility model.
It should be understood that the various steps recited in the method embodiments of the present utility model may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the utility model is not limited in this respect.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "coupled" may be either directly or indirectly through intervening components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.
It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between devices, modules, or units and not necessarily for defining the order in which such devices, modules, or units perform their functions or are interdependent.
Referring to fig. 1 to 3, the present utility model relates to an injection molding device (hereinafter referred to as "injection molding device") for an outer lens of an automotive high-mount stop lamp, for example, a 12-lamp body high-mount stop lamp, for molding an outer lens of an elongated high-mount stop lamp. The injection molding device can reduce injection molding weld marks, avoid shrinkage and deformation of plastic parts and improve the yield of products.
The injection molding device 100 comprises an injection mold 10, an injection controller and a time sequence controller 20, wherein the injection mold 10 is provided with an inner cavity 11 and at least two needle valve hot nozzles 12 which are arranged along the longitudinal direction of the inner cavity for molding a product; the injection mold is also provided with a switch loop 40 which mainly comprises an electromagnetic valve and air circuits or oil circuits connected with the electromagnetic valve, wherein the number of the air circuits or the oil circuits is the same as that of the needle valve hot nozzles and is correspondingly connected with the needle valve hot nozzles one by one, so that the opening or closing of the needle valve hot nozzles is controlled.
The injection controller is used for controlling the injection mold 10 to be closed and opened, and controlling the needle valve hot nozzle to spray glue.
The timing controller 20 is arranged at the top end of the injection mold and is electrically connected with the injection mold controller and the electromagnetic valve, and outputs corresponding delay signals through the timing controller to control the needle valve hot nozzle of the injection mold to be opened in sequence, so that the next needle valve hot nozzle can be opened when injected sizing material flows from the position of one needle valve hot nozzle and flows through the position of the other needle valve hot nozzle, and meanwhile, the previous needle valve hot nozzle is closed, thereby avoiding welding marks of products and improving the yield of the products.
In one embodiment, two needle valve nozzles 12 are provided, and correspondingly, the mold has one main hot runner 51 and two sub hot runners 52, which are in one-to-one correspondence with the two needle valve nozzles. After receiving a mold closing signal of the injection molding controller, the time sequence controller outputs a first signal to the electromagnetic valve to enable the electromagnetic valve to control the first needle valve hot nozzle to open, and injection is started, when sizing material flows through the second needle valve hot nozzle, for example, when the filling cavity reaches 70%, a second signal is output to close the first needle valve hot nozzle, meanwhile, the second needle valve hot nozzle is opened, injection is continued through the second needle valve hot nozzle until the cavity is filled, bonding of a glue melting position at the bottom of a product is achieved, the surface of a lens is completely covered, a bonding line cannot be formed, and the phenomena of shrinkage and deformation are improved.
In addition, the mold is further provided with a cooling water channel 30, and the cooling water channel is arranged at a position corresponding to the inner cavity.
In one embodiment, the cooling water path 30 includes a plurality of pipes that are provided on the injection mold 10, and the pipes are used for conveying cooling water to cool the rubber compound in the inner cavity.
In one embodiment, the plurality of pipes are uniformly distributed along the longitudinal direction of the inner cavity, preferably, the pipes are perpendicular to the longitudinal direction of the inner cavity, so that the rubber material in the inner cavity is uniformly cooled, and cracking or shrinkage caused by uneven cooling and heating is avoided.
In one embodiment, the mold includes a front mold core 13 and a rear mold core 14, the pipes are disposed on both the front mold core and the rear mold core, and the number of pipes on the front mold core is greater than the number of pipes on the rear mold core. The quantity of the cooling pipelines on the front die core and the rear die core is set to be different, so that the waste and excessive cooling of the pipelines are avoided on the basis of ensuring the cooling efficiency and the cooling effect, and the product quality is improved.
In one embodiment, the front mold core 13 is provided with a plurality of first cooling groups 31, one ends of every two pipes are connected to form a first cooling group, and the other ends of the two pipes are respectively used as a first water inlet and a second water outlet of the first cooling group 31.
In one embodiment, two second cooling groups 32 are disposed on the rear mold core 14, each second cooling group includes three pipes that are communicated with each other, and the second cooling group is provided with a second water inlet 321 and a second water outlet for cooling water.
In one embodiment, in each second cooling group, one end of the first pipeline is provided with a second water inlet, the other end of the first pipeline is connected to one end of the third pipeline, the other end of the third pipeline is connected with one end of the second pipeline, and the other end of the second pipeline is provided with a second water outlet.
The second cooling group further comprises an extension pipe, the projection of the extension pipe on the inner cavity is at least partially overlapped with the second pipeline, one end of the extension pipe is connected with the water outlet of the second pipeline, and the other end of the extension pipe is used as the second water outlet, so that the second water inlet and the first water inlet are positioned on the same side of the die, and the arrangement of cooling water pipes in the injection molding machine is facilitated.
In the injection molding device, the cooling water channel continuously works in the injection molding process, and the temperature of the mold is kept within a preset range through the circulation of cooling water, so that the rubber material in the inner cavity of the mold is cooled, and the cooling effect is ensured.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept described above. Such as the above-mentioned features and the features having similar functions (but not limited to) of the utility model.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.
Claims (8)
1. The injection molding device is characterized by further comprising a time sequence controller, the time sequence controller comprises an electromagnetic valve and a pneumatic loop or an oil-driven loop connected with the electromagnetic valve, the time sequence controller is electrically connected with the injection molding controller and the electromagnetic valve, the number of the pneumatic loop or the oil-driven loop corresponds to that of the needle valve hot nozzles, and the pneumatic loop or the oil-driven loop is in one-to-one connection with the needle valve hot nozzles to control the opening/closing state of the corresponding hot nozzles.
2. The injection molding device for the outer lens of the automobile high-mount brake lamp according to claim 1, wherein the mold is further provided with a cooling water channel, and the cooling water channel is arranged at a position corresponding to the inner cavity.
3. The automotive high-mount brake light outer lens injection molding apparatus of claim 2, wherein the cooling waterway comprises a plurality of pipes provided on the mold, the pipes being for transporting cooling water.
4. The injection molding device for the outer lens of the high-mount brake lamp of the automobile according to claim 3, wherein the plurality of pipes are uniformly distributed along the longitudinal direction of the inner cavity.
5. The injection molding device for the outer lens of the automobile high-mount brake lamp according to claim 4, wherein the mold comprises a front mold core and a rear mold core, the pipes are arranged on the front mold core and the rear mold core, and the number of the pipes on the front mold core is larger than the number of the pipes on the rear mold core.
6. The injection molding device for the outer lens of the automobile high-mount brake lamp according to claim 5, wherein a plurality of first cooling groups are arranged on the front mold core, one ends of every two pipelines are connected to form a first cooling group, and the other ends of the two pipelines are respectively used as a first water inlet and a second water outlet of the first cooling group.
7. The injection molding device for the outer lens of the automobile high-mount brake lamp according to claim 6, wherein two second cooling groups are arranged on the rear mold core, each second cooling group comprises three pipelines which are communicated with each other, and the second cooling groups are provided with a second water inlet and a second water outlet for cooling water.
8. The injection molding device for the outer lens of the automobile high-mounted brake lamp according to claim 7, wherein in each second cooling group, one end of the first pipeline is provided with a second water inlet, the other end of the first pipeline is connected to one end of a third pipeline, the other end of the third pipeline is connected with one end of the second pipeline, and the other end of the second pipeline is connected with the second water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321165501.6U CN220499807U (en) | 2023-05-15 | 2023-05-15 | Automobile brake lamp outer lens injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321165501.6U CN220499807U (en) | 2023-05-15 | 2023-05-15 | Automobile brake lamp outer lens injection molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220499807U true CN220499807U (en) | 2024-02-20 |
Family
ID=89881367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321165501.6U Active CN220499807U (en) | 2023-05-15 | 2023-05-15 | Automobile brake lamp outer lens injection molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220499807U (en) |
-
2023
- 2023-05-15 CN CN202321165501.6U patent/CN220499807U/en active Active
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