CN218640239U

CN218640239U - Car air-inlet grille highlight traceless injection mold

Info

Publication number: CN218640239U
Application number: CN202223099219.0U
Authority: CN
Inventors: 严晓杰
Original assignee: Tian Si Li Plastics Co ltd
Current assignee: Tian Si Li Plastics Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-17
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a car air-inlet grille highlight no trace injection mold, including first die body and second die body, first die body includes first solid plate group, first template and first mold core, is provided with the runner cover on the first solid plate group, has seted up the runner in first solid plate group and the first template, and the runner is communicated with the runner cover, and the runner includes sprue and subchannel, and the subchannel is communicated with the sprue; the second die body comprises a second fixed plate group, a second template, a second die core and an ejection mechanism, a cavity can be formed between the first die core and the second die core, the cavity comprises a first forming part and a second forming part, the second forming part is arranged on the periphery of the first forming part, the second forming part is communicated with the first forming part, the shunting channel is communicated with the second forming part, and the ejection mechanism is arranged on the second fixed plate group and is inserted into one end of the cavity; the utility model discloses the control material of moulding plastics is that multiple spot, balanced mode enter into each part of die cavity, has improved production efficiency and product quality.

Description

Car air-inlet grille highlight traceless injection mold

Technical Field

The utility model belongs to the injection mold field, in particular to car air inlet grille highlight does not have trace injection mold.

Background

The air-inlet grille needs to meet the requirements of ventilation, heat dissipation, buffering, decoration and the like, and is arranged at the foremost position of the automobile, so that consumers have higher requirements on the appearance of the air-inlet grille.

At present, the automobile air inlet grille is mostly produced by adopting an injection mold, the air inlet grille belongs to a medium-large injection molding product, the length of the air inlet grille is large, the time required when a mechanism injects materials is long, the production efficiency is reduced, the materials are easily cooled midway in a flow channel, and the product quality is reduced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the above not enough, the utility model aims at providing a car air-inlet grille highlight does not have trace injection mold, its reasonable in design, simple structure, easily production can improve production efficiency and product quality.

The technical scheme is as follows: a highlight traceless injection mold for an automobile air inlet grille comprises a first mold body and a second mold body, wherein the first mold body comprises a first fixed plate group, a first template and a first mold core, a sprue bush is arranged on the first fixed plate group, a runner is arranged in the first fixed plate group and the first template and is communicated with the sprue bush, the runner comprises a main runner and a branch runner, and the branch runner is communicated with the main runner; the second mold body comprises a second fixed plate group, a second template, a second mold core and an ejection mechanism, a mold cavity can be formed between the first mold core and the second mold core, the mold cavity comprises a first molding part and a second molding part, the second molding part is arranged on the periphery of the first molding part, the second molding part is communicated with the first molding part, the shunt passage is communicated with the second molding part, and the ejection mechanism is arranged on the second fixed plate group and is inserted into one end of the mold cavity; the utility model discloses the control material of moulding plastics is that each portion of die cavity is entered into to multiple spot, balanced mode, has improved production efficiency and product quality.

Preferably, the sub-runners are arranged at one end close to the joint of the first forming part and the second forming part, and the injection molding material is guided into the joint through the sub-runners; the number of the first forming parts corresponding to each branch runner is equal; the injection molding material flows out of the sub-runners and then preferentially enters the first forming parts corresponding to the sub-runners, so that the time difference of the injection molding material entering each first forming part can be shortened.

Preferably, the first forming part is provided with a strip-shaped groove, the strip-shaped groove is arranged in parallel and/or in an intersecting manner, and the second forming part is provided with an annular groove.

Preferably, the first mold body further comprises a heating element, the heating element is annularly arranged on the outer side of the runner, and the heating element at least covers the sub-runner; when in injection molding, the heating element heats the injection molding material within the coverage range of the heating element, the temperature of the injection molding material is maintained, the influence on the fluidity of the injection molding material is avoided, and the product quality is improved.

Preferably, an exhaust groove is formed in the parting surface of the first template and communicated with the second forming part; and exhausting the gas in the cavity through the exhaust groove.

Preferably, the first mold body further comprises a guide post, and the guide post is arranged on one side of the first fixing plate and penetrates through the first template; the second die body further comprises a guide sleeve, and the guide sleeve is arranged on one side of the second die plate and matched with the guide column; a first lubricating groove is formed in the guide column, a second lubricating groove is formed in the guide sleeve, and a lubricant is injected into the first lubricating groove and the second lubricating groove; one end of the guide post is arranged in a frustum shape; the first lubrication groove and the second lubrication groove can reduce the friction force between the guide post and the guide sleeve, so that the guide post and the guide sleeve can be used for a long time.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:

1. the utility model provides a pair of car air-inlet grille highlight no trace injection mold has seted up the runner in its first fixed plate group and the first template, the runner divide into sprue and subchannel, the subchannel is close to the handing-over department with first shaping portion and second shaping portion, and the quantity of the first shaping portion that each subchannel corresponds is impartial, and after injection material outflow subchannel, the material of moulding plastics preferentially gets into the first shaping portion that corresponds with this subchannel, can reduce the time difference that the material of moulding plastics got into each first shaping portion, has improved production efficiency and product quality.

2. Be provided with the heating member in the first template, the heating member covers the subchannel at least, the heating member can heat the material of moulding plastics in its coverage, even if the material of moulding plastics leaves the nozzle after still can maintain the temperature, avoids influencing the mobility of the material of moulding plastics, has improved product quality.

Drawings

Fig. 1 is a schematic structural view of the highlight traceless injection mold for the automobile air inlet grille of the present invention;

fig. 2 is a schematic structural view of a first mold body according to the present invention;

FIG. 3 is a schematic structural view of a second mold body according to the present invention;

fig. 4 is a schematic working diagram of the runner and the cavity provided by the present invention;

fig. 5 is a schematic structural view of the guide post provided by the present invention;

fig. 6 is a schematic structural view of the guide sleeve provided by the present invention.

In the figure: the mold comprises a first mold body 1, a first fixed plate group 11, a first mold plate 12, a first mold core 13, a sprue bush 14, a flow channel 15, a main flow channel 151, a branch flow channel 152, a heating element 16, a guide post 18, a first lubricating groove 181, a second mold body 2, a second fixed plate group 21, a second mold plate 22, a second mold core 23, an ejection mechanism 24, a first molding part 251, a second molding part 252, a guide bush 26 and a second lubricating groove 261.

Detailed Description

The invention will be further elucidated with reference to the drawings and the embodiments.

Examples

This implementation provides a car air-inlet grille highlight does not have trace injection mold, including first die body 1 and second die body 2, first die body 1 is the fixed die body, second die body 2 is the movable die body.

As shown in fig. 1, the first mold body 1 includes a first fixed plate group 11, a first mold plate 12 and a first mold core 13, a positioning ring is disposed on an outer side of the first fixed plate group 11, a sprue bush 14 is disposed on an inner side of the positioning ring, the positioning ring is concentric with the sprue bush 14, the positioning ring is in butt joint with a front mold plate of an injection molding machine, and the sprue bush 14 is matched with a nozzle of the injection molding machine.

The first mold plate 12 is disposed inside the first fixed plate group 11, and the first mold core 13 is disposed inside the first mold plate 12.

The first fixed plate group 11 and the first mold plate 12 are provided with a runner 15, the runner 15 is communicated with the sprue bush 14, the runner 15 comprises a plurality of main runners 151 and a plurality of branch runners 152, wherein the main runners 151 are communicated with the sprue bush 14, and one main runner 151 is communicated with the branch runners 152. Specifically, the flow channel 15 may be implemented by a flow channel 15 frame, the flow channel 15 frame is embedded in the first fixed plate group 11 and the first mold plate 12, and the flow channel 15 frame is provided with a flow channel 15

It will be understood that the number of the main runners 151 and the branch runners 152 is required to be set according to the specific shape of the air intake grill of the automobile.

As shown in fig. 2, the second mold body 2 includes a second fixed plate group 21, a second mold plate 22, a second mold core 23, and an ejection mechanism 24, the second mold plate 22 is disposed inside the second fixed plate group 21, the second mold core 23 is disposed inside the second mold plate 22, the first mold body 1 and the second mold body 2 complete opening and closing through an injection molding machine, when closing, the first mold plate 12 and the second mold plate 22 close, and the first mold core 13 and the second mold core 23 close, wherein a cavity in the first mold core 13 and the second mold core 23 forms a cavity after closing, for an automotive air intake grille, the cavity is divided into two parts, namely a first molding part 251 and a second molding part 252, the second molding part 252 is disposed at the periphery of the first molding part 251, the inner side of the second molding part 252 is communicated with the first molding part 251, and the outer side thereof is communicated with the runner 152.

It can be understood that the vehicle air inlet grille has various types, the first forming portion 251 is provided with strip-shaped grooves which are arranged in parallel and/or in an intersecting manner, the strip-shaped grooves can be combined into a banner type, a straight waterfall type, a grid type and other types, the second forming portion 252 is provided with an annular groove which is annularly arranged at the outer side of the strip-shaped grooves and is communicated with at least one part of the strip-shaped grooves, and the annular groove can be provided with a circular ring, a square ring or an irregular shape.

The ejection mechanism 24 includes a supporting block and an ejector pin, the supporting block is disposed on the inner side of the second fixed plate group 21, one end of the ejector pin is disposed on the supporting block, and the other end of the ejector pin is inserted into the cavity.

As shown in fig. 4, the runner 152 is disposed near an end where the first molding portion 251 and the second molding portion 252 meet, and the runner 152 guides the injection molding material into the joint. Specifically, the first molding part 251 is used for producing a structure inside the grid, such as a strip or a net, the second molding part 252 is used for producing a structure outside the grid, such as a ring, there are several junctions between the first molding part 251 and the second molding part 252, in this embodiment, a plastic material is injected from the junctions, the branch channels 152 are disposed at one end near the junctions, during injection molding, the injection molding material enters the second molding part 252 from the branch channels 152, then a part of the injection molding material enters the first molding part 251, and another part of the injection molding material flows along the second molding part 252.

The number of the first forming portions 251 corresponding to the respective branch passages 152 is equal. Specifically, one main runner 151 corresponds to a plurality of sub-runners 152, and the first molding portion 251 near the sub-runners 152 is regarded as corresponding to the sub-runners 152, and when the injection material flows out of the sub-runners 152, the injection material preferentially flows into the first molding portion 251 corresponding to the sub-runners 152. The time difference for the injection material to enter each first molding portion 251 can be shortened.

The first mold body 1 further comprises a heating element 16, the heating element 16 is arranged around the outside of the flow passage 15, and the heating element 16 at least covers the sub-flow passage 152. The heating element 16 is an electrothermal tube, the heating element 16 is inserted into the first mold body 1, the heating element 16 can be a double-layer structure, the first layer of heating element 16 is used for heating the injection molding material in the main runner 151, and the second layer of heating element 16 is used for heating the injection molding material in the sub-runner 152. When the heating member 16 is provided as a single-layer structure, the heating member 16 is used only for heating the injection molding material in the sub-runner 152. It will be appreciated that the number of heating elements 16 will need to be set according to the particular shape of the vehicle's air intake grill.

A plurality of exhaust grooves are formed in the parting surface of the first mold plate 12, and the exhaust grooves are communicated with the second molding portion 252. Specifically, the exhaust grooves are uniformly distributed on the outer side of the second forming portion 252.

The first mold body 1 further comprises a guide post 18, and the guide post 18 is arranged on one side of the first fixing plate and penetrates through the first mold plate 12; the second mold body 2 further comprises a guide sleeve 26, and the guide sleeve 26 is disposed on one side of the second mold plate 22 and is engaged with the guide posts 18.

As shown in fig. 5 and 6, a first lubrication groove 181 is formed in the guide post 18, a second lubrication groove 261 is formed in the guide sleeve 26, the first lubrication groove 181 and the second lubrication groove 261 are filled with lubricant, and the front end of the guide post 18 is tapered. Specifically, the front end of the guide post 18 is further provided with a lubrication hole, the lubrication hole is communicated with the first lubrication groove 181, the lubricant can form an oil film at the front end of the guide post 18, and the guide post 18 can be lubricated for a longer time.

The injection molding method of the highlight traceless injection mold for the automobile air inlet grille comprises the steps of loading a mold on a corresponding injection molding machine, starting the injection molding machine, injecting an injection molding material into the mold from a sprue bush 14, enabling the injection molding material to flow into a main runner 151 firstly and then flow into branch runners 152, realizing multipoint and synchronous glue feeding through the branch runners 152, heating the injection molding material passing through the coverage range of the heating part 16 by the heating part 16, maintaining the temperature of the injection molding material by the heating part 16, enabling the injection molding material to flow into a second molding part 252 firstly in the process that the injection molding material enters a cavity, then filling a first molding part 251 and a second molding part 252 simultaneously until the cavity is full of the injection molding material, and opening the mold to take out a product after the injection molding material is cooled and molded.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a car air-inlet grille highlight does not have trace injection mold, includes first die body (1) and second die body (2), its characterized in that:

the first mold body (1) comprises a first fixed plate group (11), a first mold plate (12) and a first mold core (13), a sprue bush (14) is arranged on the first fixed plate group (11), a runner (15) is arranged in the first fixed plate group (11) and the first mold plate (12), the runner (15) is communicated with the sprue bush (14), the runner (15) comprises a main runner (151) and a branch runner (152), and the branch runner (152) is communicated with the main runner (151);

the second mold body (2) comprises a second fixed plate group (21), a second mold plate (22), a second mold core (23) and an ejection mechanism (24), a mold cavity can be formed between the first mold core (13) and the second mold core (23), the mold cavity comprises a first molding part (251) and a second molding part (252), the second molding part (252) is arranged on the periphery of the first molding part (251), the second molding part (252) is communicated with the first molding part (251), the branch channel (152) is communicated with the second molding part (252), and the ejection mechanism (24) is arranged on the second fixed plate group (21) and is inserted into one end of the mold cavity.

2. The automotive air intake grille highlight traceless injection mold of claim 1, characterized in that: the branch channel (152) is arranged at one end close to the junction of the first forming part (251) and the second forming part (252), and the branch channel (152) guides injection molding materials to the junction.

3. The automotive air intake grille highlight traceless injection mold of claim 2, characterized in that: the number of the first molding parts (251) corresponding to each branch channel (152) is equal.

4. The high-gloss traceless injection mold for the automobile air inlet grille according to claim 1, characterized in that: the first forming part (251) is provided with strip-shaped grooves which are arranged in parallel and/or in an intersecting mode, and the second forming part (252) is provided with an annular groove.

5. The high-gloss traceless injection mold for the automobile air inlet grille according to claim 1, characterized in that: the first die body (1) further comprises a heating element (16), the heating element (16) is arranged on the outer side of the flow channel (15) in a surrounding mode, and the heating element (16) at least covers the sub-flow channel (152).

6. The automotive air intake grille highlight traceless injection mold of claim 1, characterized in that: and an exhaust groove is formed in the parting surface of the first template (12), and the exhaust groove is communicated with the second forming part (252).

7. The automotive air intake grille highlight traceless injection mold of claim 1, characterized in that: the first die body (1) further comprises a guide post (18), and the guide post (18) is arranged on one side of the first fixing plate and penetrates through the first die plate (12); the second die body (2) further comprises a guide sleeve (26), and the guide sleeve (26) is arranged on one side of the second die plate (22) and matched with the guide column (18).

8. The automotive air intake grille highlight traceless injection mold of claim 7, characterized in that: a first lubricating groove (181) is formed in the guide column (18), a second lubricating groove (261) is formed in the guide sleeve (26), and lubricants are injected into the first lubricating groove (181) and the second lubricating groove (261).

9. The high-gloss traceless injection mold for the automobile air inlet grille according to claim 7, is characterized in that: one end of the guide post (18) is arranged in a frustum shape.