CN214353951U

CN214353951U - Compression injection mold for producing automobile central control panel

Info

Publication number: CN214353951U
Application number: CN202023167546.6U
Authority: CN
Inventors: 王立锋
Original assignee: Tutai Precision Mould Suzhou Co ltd
Current assignee: Tutai Precision Mould Suzhou Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-08
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a compression injection mold for producing automobile central control panels, which belongs to the field of injection molds and comprises an upper mold and a lower mold, wherein a male mold core is embedded in the upper mold, a female mold core is embedded in the lower mold, a molding cavity is formed between the male mold core and the female mold core, the depth of the molding cavity is twice of the thickness of a panel, an injection molding channel is arranged on the upper mold top wall, and the injection molding channel extends into the male mold core and is communicated with the male mold core; the lower surface of the male die core is provided with a forming step, the top wall of the female die core is provided with a forming groove, the forming cavity is formed between the forming step and the forming groove, the height of the forming step is 1/2 of the depth of the forming groove, the forming step is positioned in the forming groove in a die closing state, the side wall of the forming step is attached to the side wall of the forming groove, and the bottom wall of the forming step is pressed on the panel. The utility model discloses have the effect that keeps product production stable quality, the defect that is difficult for producing stress lines, warpage and printing character deformation.

Description

Compression injection mold for producing automobile central control panel

Technical Field

The utility model relates to an injection mold technical field, in particular to control panel production in car is with compression injection mold.

Background

The automobile central control panel is applied to an automobile central control system, the prior art generally adopts an injection molding process for processing the products, and injection molding is a method for producing and molding industrial products. The automobile central control panel product material usually mainly comprises PC or PC composite material, PC molecular chains have high rigidity and poor mobility among chain segments, and after the PC molecular chains are elastically deformed under the action of external force, the PC molecular chains have poor recovery performance and are easy to generate stress lines. Meanwhile, in the injection molding process, internal stress is generated in the PC material due to factors such as orientation of macromolecular chains, cooling shrinkage and the like, so that the product quality is unstable, and the defects of stress lines, warping and the like are generated.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a control panel production is with compression injection mold in car has the effect that keeps product production stable quality, the defect that is difficult for producing stress lines, warpage and printing character deformation.

A compression injection mold for producing an automobile central control panel comprises an upper mold and a lower mold, wherein a male mold core is embedded in the upper mold, a female mold core is embedded in the lower mold, a forming cavity is formed between the male mold core and the female mold core, the depth of the forming cavity is twice of the thickness of a panel, an injection molding channel is formed in the top wall of the upper mold, and the injection molding channel extends into the male mold core and is communicated with the male mold core;

the lower surface of the male die core is provided with a forming step, the top wall of the female die core is provided with a forming groove, the forming cavity is formed between the forming step and the forming groove, the height of the forming step is 1/2 of the depth of the forming groove, the forming step is positioned in the forming groove in a die closing state, the side wall of the forming step is attached to the side wall of the forming groove, and the bottom wall of the forming step is pressed on the panel.

The utility model discloses further set up to: the inner part of the lower die is provided with an ejection gas circuit, the ejection gas circuit is provided with a connecting hole on the side wall of the lower die, the inner part of the cavity insert is provided with an ejection block below the forming groove in a penetrating manner, the ejection block is equal to the cavity insert in height, the ejection block is connected with the female die in a sliding manner, the gas circuit is arranged on the top wall of the lower die and provided with a gas outlet, and the gas outlet is arranged under the ejection block.

The utility model discloses further set up to: the ejection block is arranged on the slope surface of the forming groove, and the top wall of the ejection block is a wedge-shaped surface which is the same as the slope surface.

The utility model discloses further set up to: and a temperature sensor is arranged in the cavity insert below the forming groove.

The utility model discloses further set up to: the lower mould upper surface fixedly connected with guide post, go up the mould lower surface and offer the guide way with the guide post adaptation.

The utility model discloses further set up to: the number of the male die cores and the number of the female die cores are two.

The utility model discloses further set up to: and yielding grooves are formed at four corners of the bottom wall of the upper die.

When carrying out the panel shaping, it drives core insert downstream to half mould state to go up the mould, the shaping chamber degree of depth is the twice thickness of panel this moment, the notch parallel and level of shaping step lower surface and shaping groove, the hot runner needle of injection molding machine gets into in the passageway of moulding plastics, mould plastics to the shaping intracavity, it drives core insert and continues to push down to complete compound die to mould plastics to go up the mould after finishing moulding plastics, the shaping step pushes down to the panel upper surface, force plastics to fill to not filled the region in the shaping chamber, let the polymer keep suitable pressurized state, reach the effect of compensating material shrink, thereby keep product production stable quality, be difficult for producing stress lines, the defect effect of warpage and printing character deformation.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the forming cavity with the depth twice as much as the panel, the forming step and the forming groove, the material shrinkage compensation effect is achieved by pressing down after the injection molding is finished, and therefore the product stability is kept;

2. through the gas circuit and the ejection block formed in the lower die, the panel is convenient to demould after the forming is finished;

3. through the groove of stepping down that is formed at last mould, the mould damage because of colliding with the cause is effectively avoided to the compound die in-process.

Drawings

Fig. 1 is a schematic structural diagram for embodying the whole of the present invention;

fig. 2 is a schematic structural diagram for showing a semi-closed injection molding state in the present invention;

fig. 3 is a schematic structural diagram for showing a mold closing state of the mold in the present invention;

fig. 4 is an enlarged view of a portion a in fig. 1.

In the figure, 1, an upper die; 11. injection molding a channel; 13. a yielding groove; 2. a core insert; 21. forming steps; 3. a lower die; 31. ejecting out the gas circuit; 32. connecting holes; 33. an air outlet; 34. a guide post; 4. a cavity insert; 41. forming a groove; 42. a molding cavity; 43. ejecting a block; 431. a wedge-shaped surface; 44. a temperature sensor.

Detailed Description

The present invention will be described in detail with reference to the attached drawings, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also regarded as the scope of the present invention without substantial changes in the technical content.

Example (b):

as shown in fig. 1 to 3, for the utility model discloses a control panel production is with compression injection mold in car, including last mould 1 and lower mould 3, go up the embedded public mould benevolence 2 that is equipped with of mould 1, the embedded cavity benevolence 4 that is equipped with of lower mould 3, the setting quantity of public mould benevolence 2 and cavity benevolence 4 is two. A molding cavity 42 is formed between the core insert 2 and the cavity insert 4, the depth of the molding cavity 42 is twice the thickness of the panel, an injection molding channel 11 is formed on the top wall of the upper mold 1, and the injection molding channel 11 extends into the core insert 2 and is communicated with the core insert 2. The lower surface of the male die core 2 is provided with a forming step 21, the top wall of the female die core 4 is provided with a forming groove 41, a forming cavity 42 is formed between the forming step 21 and the forming groove 41, the height of the forming step 21 is 1/2 of the depth of the forming groove 41, the forming step 21 is positioned in the forming groove 41 in a die closing state, the side wall of the forming step 21 is attached to the side wall of the forming groove 41, and the bottom wall of the forming step 21 is pressed on a panel.

As shown in fig. 1 to 3, a temperature sensor 44 is installed inside the cavity insert 4 below the forming groove 41, the guide post 34 is fixedly connected to the upper surface of the lower mold 3, and the guide groove adapted to the guide post 34 is formed in the lower surface of the upper mold 1. Go up 1 diapire four corners department of mould and all be formed with the groove of stepping down 13, the setting in groove of stepping down 13 can avoid going up the damage of colliding with that mould 1 and lower mould 3 contact lead to in the compound die in-process.

As shown in fig. 1 and 4, an ejection air channel 31 is formed inside the lower mold 3, a connecting hole 32 is formed on the side wall of the lower mold 3 by the ejection air channel 31, an ejection block 43 penetrates through the cavity 4 below the forming groove 41, the height of the ejection block 43 is equal to that of the cavity 4, the ejection block 43 is connected with the female mold in a sliding manner, an air outlet 33 is formed on the top wall of the lower mold 3 by the air channel, and the air outlet 33 is located right below the ejection block 43. The ejection block 43 is arranged at the sloping surface of the forming groove 41, and the top wall of the ejection block 43 is provided with a wedge-shaped surface 431 which is the same as the sloping surface. After the mold is opened, gas is introduced into the connecting hole 32, and the gas pushes out the ejection block 43 through the gas outlet hole 33 so as to be convenient for demolding.

The implementation principle of the above embodiment is as follows: when carrying out the panel shaping, go up mould 1 and drive core 2 downstream to half mould state, the shaping chamber 42 degree of depth is the double thickness of panel this moment, shaping step 21 lower surface and the notch parallel and level of shaping groove 41, the hot runner needle of injection molding machine gets into in the passageway 11 of moulding plastics, mould plastics in to shaping chamber 42, it pushes down to complete compound die to go up mould 1 drive core 2 after finishing moulding plastics, shaping step 21 pushes down to the panel upper surface, force plastics to fill to not filled region in the shaping chamber 42, let the polymer keep appropriate pressurized state, reach the effect of compensation material shrink, thereby keep product production stable quality, be difficult for producing the defect effect that stress line, warpage and printed character warp.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a production of accuse panel is with compression injection mold which characterized in that in the car: the injection molding device comprises an upper die (1) and a lower die (3), wherein a male die core (2) is embedded in the upper die (1), a female die core (4) is embedded in the lower die (3), a molding cavity (42) is formed between the male die core (2) and the female die core (4), the depth of the molding cavity (42) is twice of the thickness of a panel, an injection molding channel (11) is formed in the top wall of the upper die (1), and the injection molding channel (11) extends into the male die core (2) and is communicated with the male die core (2);

the lower surface of the male die core (2) is provided with a forming step (21), the top wall of the female die core (4) is provided with a forming groove (41), the forming cavity (42) is formed between the forming step (21) and the forming groove (41), the height of the forming step (21) is 1/2 of the depth of the forming groove (41), the forming step (21) is located in the forming groove (41) in a die closing state, the side wall of the forming step (21) is attached to the side wall of the forming groove (41), and the bottom wall of the forming step (21) is pressed on the panel.

2. The compression injection mold for producing the automotive center control panel according to claim 1, characterized in that: the mold is characterized in that an ejection air channel (31) is formed inside the lower mold (3), a connecting hole (32) is formed in the side wall of the lower mold (3) through the ejection air channel (31), an ejection block (43) penetrates through the position, below the forming groove (41), inside the cavity insert (4), the height of the ejection block (43) is equal to that of the cavity insert (4), the ejection block (43) is connected with the cavity insert in a sliding mode, an air outlet (33) is formed in the position, on the top wall of the lower mold (3), of the air channel, and the air outlet (33) is located under the ejection block (43).

3. The compression injection mold for producing the automotive center control panel according to claim 2, characterized in that: the ejection block (43) is arranged on the slope surface of the forming groove (41), and the top wall of the ejection block (43) is arranged to be a wedge-shaped surface (431) which is the same as the slope surface.

4. The compression injection mold for producing the automotive center control panel according to claim 3, characterized in that: and a temperature sensor (44) is arranged in the cavity insert (4) and below the forming groove (41).

5. The compression injection mold for producing the automotive center control panel according to claim 1, characterized in that: the upper surface of the lower die (3) is fixedly connected with a guide post (34), and the lower surface of the upper die (1) is provided with a guide groove matched with the guide post (34).

6. The compression injection mold for producing the automotive center control panel according to claim 5, characterized in that: the number of the male die core (2) and the number of the female die core (4) are two.

7. The compression injection mold for producing the automotive center control panel according to claim 6, characterized in that: and yielding grooves (13) are formed at four corners of the bottom wall of the upper die (1).