CN216230543U - Injection molding mold for front windshield decoration strip - Google Patents
Injection molding mold for front windshield decoration strip Download PDFInfo
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- CN216230543U CN216230543U CN202122423657.7U CN202122423657U CN216230543U CN 216230543 U CN216230543 U CN 216230543U CN 202122423657 U CN202122423657 U CN 202122423657U CN 216230543 U CN216230543 U CN 216230543U
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- front windshield
- glue inlet
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Abstract
The utility model provides an injection molding die for a front windshield decoration strip, which comprises a front die core, a rear die core and a strip-shaped die cavity, wherein the shape of the strip-shaped die cavity is consistent with that of the front windshield decoration strip; advance gluey structure includes: the glue inlet channel is arranged at one end of the strip-shaped die cavity and is used for communicating the glue melting hot nozzle with the strip-shaped die cavity; the air nozzle is arranged on the glue inlet channel; the air pipe is communicated with the air nozzle; and the high-pressure air source is communicated with the air pipe and is used for providing high-pressure nitrogen for the air pipe and the air tap. According to the utility model, the glue melting hot nozzle firstly inputs glue stock to the glue inlet channel, then high-pressure nitrogen gas is injected into the glue inlet channel through the air pipe and the air nozzle, the nitrogen gas and the glue stock enter the mold cavity together, so that the strip-shaped mold cavity can be quickly filled with the glue stock, and the nitrogen gas blown out from the air nozzle can play a pressure maintaining role, so that the injection molded front windshield decoration strip has high strength, a smooth surface and no reduction printing.
Description
Technical Field
The utility model relates to the field of automobile molds, in particular to an injection molding mold for a front windshield decoration strip.
Background
The front windshield decoration strip is positioned between the front windshield and the left and right side wall outer plates and mainly plays a role in decorating and preventing sundries from entering a gap between the front windshield and the left and right side wall outer plates. For strength and appearance, the front windshield molding is generally made of a one-shot molded part. However, the front windshield of the automobile is larger, the side length of the front windshield is longer, and the integral shape of the front windshield decorative strip matched with the front windshield decorative strip is a slender strip shape. In addition, the current automobile parts are improved in the direction of light weight, the thickness of the front windshield decoration strip is thinned, so that a forming cavity between a front die and a rear die of a forming die is very narrow, and the problem of surface sink marks frequently occurs when the front windshield decoration strip is manufactured by using a conventional injection molding process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an injection molding die for a front windshield decoration strip, which aims to solve the problem that surface reduction printing often occurs when the front windshield decoration strip is manufactured by a conventional injection molding process.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
an injection molding die for a front windshield decoration strip comprises a front template, a rear template, a front die core, a rear die core and a glue inlet structure, wherein the front die core is installed on the front template, the rear die core is installed on the rear template, the front die core and the rear die core are enclosed to form a strip-shaped die cavity, and the shape of the strip-shaped die cavity is consistent with that of the front windshield decoration strip;
advance gluey structure includes: the glue inlet channel is arranged at one end of the strip-shaped die cavity and is used for communicating the glue melting hot nozzle with the strip-shaped die cavity;
the air nozzle is arranged on the glue inlet channel;
the air pipe is communicated with the air nozzle;
and the high-pressure air source is communicated with the air pipe and is used for providing high-pressure nitrogen for the air pipe and the air tap.
Compared with the prior art, the glue melting hot nozzle inputs glue stock to the glue inlet channel, then high-pressure nitrogen enters the glue inlet channel through the air pipe and the air nozzle, the nitrogen and the glue stock enter the mold cavity together, so that the glue stock can fill the strip-shaped mold cavity quickly, and the nitrogen blown out from the air nozzle can play a role in maintaining pressure, so that the injection-molded front windshield decoration strip has high strength, smooth surface and no reduction printing.
Further, advance gluey passageway including advancing gluey section and ox horn section, advance gluey section intercommunication the hot mouth of melten gel reaches the ox horn section, ox horn section intercommunication rectangular shape die cavity.
Further, the front windshield trim strip includes a body portion having an upper surface and a lower surface, and a fastening portion connected to the lower surface of the body portion;
the lower surface of the body part is provided with a glue inlet, and the glue inlet is connected with the glue inlet channel.
Further, the pressure of the nitrogen output by the high-pressure air source is greater than or equal to 0.3 MPa.
Further, the air tap is arranged on the glue inlet section.
Furthermore, be provided with the narrowing waist on advancing gluey section, the narrowing waist sets up the air cock with between the hot mouth of melten gel.
Furthermore, the lower part of the rubber feeding section is also connected with two cold material wells, and the narrowing waist part is arranged between the two cold material wells.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic structural diagram of a glue inlet structure of the present invention;
fig. 2 is an enlarged view at a in fig. 1.
Wherein: 01. front windshield ornamental strip, 011, body portion, 012, buckle portion, 013, upper surface, 014, lower surface, 015, advance gluey mouth, 1, advance gluey structure, 11, advance gluey passageway, 12, melt adhesive hot nozzle, 13, air cock, 14, trachea, 15, high-pressure air source, 16, cold burden well, 111, advance gluey section, 112, ox horn section, 1111, the waist of narrowing.
Detailed Description
The technical solution provided by the present invention is explained in more detail below with reference to fig. 1-2.
The utility model discloses an injection molding die for a front windshield decoration strip, which comprises a front template, a rear template, a front die core, a rear die core and a glue inlet structure, wherein the front die core is arranged on the front template, the rear die core is arranged on the rear template, the front die core and the rear die core are enclosed to form a strip-shaped die cavity, and the shape of the strip-shaped die cavity is consistent with that of the front windshield decoration strip.
As shown in fig. 1 and 2, the glue inlet structure 1 includes: the glue inlet channel 11 is arranged at one end of the strip-shaped die cavity and is used for communicating the glue melting hot nozzle 12 with the strip-shaped die cavity;
an air nozzle 13 arranged on the glue inlet channel 11;
an air tube 14 communicating with the air nozzle 13;
and the high-pressure gas source 15 is communicated with the gas pipe 14 and is used for providing high-pressure nitrogen for the gas pipe 14 and the gas nozzle 13.
According to the utility model, the glue melting hot nozzle 12 firstly inputs glue stock to the glue inlet channel 11, then high-pressure nitrogen gas is injected into the glue inlet channel 11 through the air pipe 14 and the air nozzle 13, the nitrogen gas and the glue stock enter the mold cavity together, so that the strip-shaped mold cavity can be quickly filled with the glue stock, and the nitrogen gas blown out from the air nozzle 13 can play a role in pressure maintaining, so that the injection-molded front windshield decoration strip 01 has high strength, a smooth surface and no reduction printing.
As shown in fig. 2, the glue inlet channel 11 includes a glue inlet section 111 and a horn section 112, the glue inlet section 111 is communicated with the hot melt glue nozzle 12 and the horn section 112, and the horn section 112 is communicated with the elongated mold cavity. Adopt above-mentioned structure to carry out ox horn and advance gluey, need not artifical the mouth of a river that subtracts after the shaping of front windshield ornamental strip 01, use manpower sparingly.
Specifically, as shown in fig. 2, the front windshield trim strip 01 includes a body portion 011 having an upper surface 013 and a lower surface 014, and a catching portion 012 connected to the lower surface 014 of the body portion 011; the lower surface 014 of the body part 011 is provided with a glue inlet 015, and the glue inlet 015 is connected with the glue inlet channel 11.
In this way, the water gap in the molded front windshield molding 01 is positioned on the lower surface 014 of the body portion 011, and does not affect the front appearance of the front windshield molding 01.
Because the diameter of the ox horn section 112 is smaller, in order to make the rubber material fill the strip-shaped mold cavity, compared with a large-caliber glue inlet mold, the pressure of the nitrogen gas blown out from the air nozzle 13 is greater, and in this embodiment, the pressure of the nitrogen gas output by the high-pressure gas source 15 is greater than or equal to 0.3 MPa.
Specifically, the air nozzle 13 is disposed on the glue inlet section 111.
The glue inlet section 111 is provided with a narrowing waist portion 1111, and the narrowing waist portion 1111 is arranged between the air nozzle 13 and the glue melting hot nozzle 12. The narrowing waist portion 1111 is arranged, nitrogen blown out from the air nozzle 13 is difficult to blow the glue material in the glue feeding section 111 back to the direction of the glue melting hot nozzle 12, and smooth glue feeding of the glue feeding structure 1 is ensured. In this embodiment, the glue inlet section 111 is provided with a recess, and the narrowed waist portion 1111 is formed at the recess.
Due to the fact that the length of the strip-shaped mold cavity is long, the rubber material flowing into the strip-shaped mold cavity can be smoothly filled in the strip-shaped mold cavity only by ensuring that the flowability of the rubber material is good enough. The way of ensuring that the fluidity of the rubber material is good enough is to ensure that the temperature of the rubber material entering the elongated die cavity is high enough, so that two cold material wells 16 are connected below the rubber inlet section 111, the temperature of the rubber material which just flows out from the hot nozzle 12 for melting rubber is low, and the cold material wells 16 are arranged to collect the rubber material with low temperature, so as to ensure that the temperature of the rubber material flowing into the elongated die cavity is high.
And, the narrowed waist portion 1111 is disposed between the two cold burden wells 16, and the narrowed waist portion 1111 can assist the entering of the glue into the cold burden well 16 in addition to preventing the nitrogen gas from blowing the glue back to the direction of the hot nozzle 12 for melting the glue. When the temperature of the rubber material at the initial stage is low and the fluidity is poor, the narrowing waist portion 1111 can play a role in slowing down the flow of the rubber material to the strip-shaped die cavity, the rubber material firstly fills the cold material well 16 close to the hot nozzle 12 of the molten rubber, then flows through the narrowing waist portion 1111, and finally fills the cold material well 16 close to the strip-shaped die cavity and flows into the strip-shaped die cavity.
In the description of the present invention, it is to be understood that the terms "vertical", "horizontal", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the utility model and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (7)
1. An injection molding mold for a front windshield decoration strip is characterized by comprising a front template, a rear template, a front mold core, a rear mold core and a glue inlet structure, wherein the front mold core is installed on the front template, the rear mold core is installed on the rear template, the front mold core and the rear mold core are enclosed to form a strip-shaped mold cavity, and the strip-shaped mold cavity is consistent with the front windshield decoration strip in shape;
advance gluey structure includes: the glue inlet channel is arranged at one end of the strip-shaped die cavity and is used for communicating the glue melting hot nozzle with the strip-shaped die cavity;
the air nozzle is arranged on the glue inlet channel;
the air pipe is communicated with the air nozzle;
and the high-pressure air source is communicated with the air pipe and is used for providing high-pressure nitrogen for the air pipe and the air tap.
2. The injection molding mold for the front windshield trim strip as recited in claim 1, wherein:
the glue inlet channel comprises a glue inlet section and a horn section, the glue inlet section is communicated with the hot melt glue nozzle and the horn section, and the horn section is communicated with the long strip-shaped die cavity.
3. The injection molding mold for the front windshield trim strip as recited in claim 1, wherein:
the front windshield decoration strip comprises a body part and a clamping part, wherein the body part is provided with an upper surface and a lower surface, and the clamping part is connected to the lower surface of the body part;
the lower surface of the body part is provided with a glue inlet, and the glue inlet is connected with the glue inlet channel.
4. The injection molding mold for the front windshield trim strip as recited in claim 2, wherein:
the pressure of nitrogen output by the high-pressure air source is greater than or equal to 0.3 MPa.
5. The injection molding mold for the front windshield trim strip as recited in claim 2, wherein:
the air tap is arranged on the glue inlet section.
6. The injection molding mold for the front windshield trim strip as recited in claim 5, wherein:
the glue inlet section is provided with a narrowing waist part, and the narrowing waist part is arranged between the air nozzle and the melt glue hot nozzle.
7. The injection molding mold for the front windshield trim strip as recited in claim 6, wherein:
the lower part of the rubber inlet section is also connected with two cold material wells, and the narrowing waist part is arranged between the two cold material wells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122423657.7U CN216230543U (en) | 2021-10-08 | 2021-10-08 | Injection molding mold for front windshield decoration strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122423657.7U CN216230543U (en) | 2021-10-08 | 2021-10-08 | Injection molding mold for front windshield decoration strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216230543U true CN216230543U (en) | 2022-04-08 |
Family
ID=80988603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122423657.7U Active CN216230543U (en) | 2021-10-08 | 2021-10-08 | Injection molding mold for front windshield decoration strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216230543U (en) |
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2021
- 2021-10-08 CN CN202122423657.7U patent/CN216230543U/en active Active
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