CN218139616U - Injection mold is used in preparation of panel board plastic accessory - Google Patents

Abstract

The utility model discloses an injection mold for preparing instrument panel plastic accessories, which relates to the field of injection molds. Aiming at the problem of low demoulding efficiency of the existing injection molds, the following scheme is proposed, which includes a bottom plate, an upper mold and a lower mold, Both sides of the top of the bottom plate are fixedly connected with symmetrically distributed support plates, and the tops of the two support plates are jointly fixedly connected with a top plate, and a hydraulic rod is fixedly installed at the bottom of the top plate, and the upper die is fixed Installed on the bottom end of the hydraulic rod, the lower mold is fixedly installed on the top of the bottom plate, both sides of the upper mold are fixedly connected with a fixed plate, and the bottom end of the fixed plate is fixedly installed with a driving rack plate, so A movable groove is opened inside the lower mold, and a movable plate is slidably installed inside the movable groove. The utility model has a novel structure, and the device can realize rapid demoulding treatment of products inside the mold cavity of the injection mold and improve the demoulding efficiency.

Description

An injection mold for the preparation of instrument panel plastic parts

technical field

The utility model relates to the field of injection molds, in particular to an injection mold for preparing instrument panel plastic accessories.

Background technique

Injection molding is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to melting plastic by heat. The injection molding machine is injected into the mold cavity under high pressure, and after cooling and solidification, the formed product is obtained, which is widely used in machinery, electronics, automobile, information, aviation, aerospace, light industry, military industry, transportation, building materials, medical treatment, biology, energy and other industries .

Chinese Patent Publication No. CN215203171U is an injection mold for automobile dashboard, which discloses a base, the top of the base is fixedly connected with a lower mold, the top of the lower mold is fixedly connected with a balance bar, and the outside of the balance bar An upper mold is sleeved, and two sets of lifting rings are fixedly connected to the top of the upper mold. The automobile instrument panel injection mold, by setting the balance bar, can keep the upper mold stable when it moves down, preventing the dislocation of the upper mold, and by setting the spring, and then when the upper mold moves down, the spring will be squeezed by the slider At the same time, the block is placed to drive the top stick down, and then after the upper mold and the lower mold are combined for injection molding, in order to take out the model, the upper mold needs to be moved up. When the upper mold moves up, the spring will bounce the slider upward, so that the placement The block drives the ejector rod up, so that the model is ejected quickly, so that the device can complete the injection molding in a stable and convenient manner. Although the patent document can realize the ejection of the injection molding product, when the injection molding product is attached to the cavity When the closure is too tight, it is not necessarily possible to push it out only by the spring force, resulting in the problem that the product cannot be demolded. Therefore, in order to solve this problem, we propose an injection mold for the preparation of plastic parts for instrument panels. .

Utility model content

The utility model proposes an injection mold for preparing the plastic parts of the instrument panel, which solves the problem of low demoulding efficiency of the existing injection mold.

In order to achieve the above object, the utility model adopts the following technical solutions:

An injection mold for the preparation of instrument panel plastic accessories, including a bottom plate, an upper mold and a lower mold, the two sides of the top of the bottom plate are fixedly connected with symmetrically distributed support plates, and the top ends of the two support plates are fixedly connected together There is a top plate, the bottom end of the top plate is fixedly installed with a hydraulic rod, and the upper mold is fixedly installed at the bottom end of the hydraulic rod, and the lower mold is fixedly installed at the top of the bottom plate;

Both sides of the upper mold are fixedly connected with a fixed plate, and the bottom end of the fixed plate is fixedly installed with a driving rack plate, and the inside of the lower mold is provided with a movable groove, and the movable groove is slidably installed with a A movable plate, the top of the movable plate is fixedly connected with a ejector pin, and the end of the ejector pin extends to the inside of the mold cavity of the lower mold during demoulding;

Both sides of the movable plate are fixedly connected with limit rods, and the end of the limit rod extends to the outside of the lower mold and is fixedly connected with a driven rack plate, and the driven rack plate and the support plate are in a sliding connected, and the sides of the two support plates that are close to each other are provided with a transmission mechanism for driving the driven rack plate and the driving rack plate.

Preferably, a through hole connecting the mold cavity and the movable groove is opened in the lower mold, and the ejector pin is slidably installed inside the through hole.

Preferably, both sides of the lower mold are provided with limiting grooves matching the limiting rods.

Preferably, the side of the driven rack plate away from the movable plate is fixedly connected with a slider, and the sides of the two support plates close to each other are provided with chute, and the slider is slidably installed on the side of the chute. internal.

Preferably, the transmission mechanism includes a first transmission toothed plate and a second transmission toothed plate, and the sides of the two support plates close to each other are rotatably installed with the first transmission toothed plate and the second transmission toothed plate meshing with each other, And the driving rack plate is engaged with the first transmission toothed plate, and the driven rack plate is engaged with the second transmission toothed plate.

The beneficial effects of the utility model are:

In the process of separating the upper mold and the lower mold through the hydraulic rod, the fixed plate and the driving rack plate can be driven synchronously. Through the setting of the transmission mechanism, the driven rack plate can drive the limit lever to move, and the limit lever can drive the movement synchronously. The plate and the ejector pin move, so that the product formed in the mold cavity can be quickly ejected through the ejector pin to achieve rapid demoulding.

Description of drawings

Fig. 1 is the structural representation of the injection mold for the preparation of a kind of instrument panel plastic accessories of the present utility model;

Fig. 2 is the front sectional view of the injection mold for the preparation of a kind of instrument panel plastic accessories of the present invention;

Fig. 3 is the enlarged structural schematic diagram of A in Fig. 2 of the injection mold for the preparation of a kind of instrument panel plastic accessories of the present utility model;

Fig. 4 is a structural schematic diagram of a transmission mechanism of an injection mold for preparing plastic parts of an instrument panel according to the present invention.

Symbols in the figure: 1, bottom plate; 2, support plate; 3, top plate; 4, hydraulic rod; 5, upper mold; 6, lower mold; 7, driven rack plate; 8, limit groove; 9, limit Rod; 10, movable plate; 11, ejector rod; 12, through hole; 13, the second transmission chainring; 14, chute; 15, slider; 16, fixed plate; 17, driving rack plate; 18, the first A transmission gear plate.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Fig. 1 , an injection mold for preparing plastic parts of an instrument panel includes a bottom plate 1, an upper mold 5 and a lower mold 6, the two sides of the top of the bottom plate 1 are fixedly connected with support plates 2 symmetrically distributed, and two support plates 2 The top of the joints are fixedly connected with a top plate 3, the bottom end of the top plate 3 is fixedly installed with a hydraulic rod 4, the upper mold 5 is fixedly installed at the bottom of the hydraulic rod 4, and the lower mold 6 is fixedly installed at the top of the base plate 1.

With reference to Fig. 1, Fig. 2 and Fig. 4, both sides of upper die 5 are all fixedly connected with fixed plate 16, and the bottom end of fixed plate 16 is fixedly installed with driving rack plate 17, and the inside of lower die 6 is provided with movable groove, and movable A movable plate 10 is slidably installed inside the groove, and the top of the movable plate 10 is fixedly connected with a mandrel 11. When demoulding, the end of the mandrel 11 extends to the inside of the mold cavity of the lower mold 6, and the lower mold 6 is provided with a connected mold cavity. and the through hole 12 of the movable groove, and the push rod 11 is slidably installed in the through hole 12 .

Referring to Figures 1-3, both sides of the movable plate 10 are fixedly connected to the limit rod 9, and both sides of the lower mold 6 are provided with a limit groove 8 matching the limit rod 9, and the limit groove 8 can ensure the limit Stability when the bar 9 slides in the vertical direction, the end of the limit bar 9 extends to the outside of the lower die 6 and is fixedly connected with a driven rack plate 7, and the driven rack plate 7 is slidingly connected with the support plate 2, The side of the driven rack plate 7 away from the movable plate 10 is fixedly connected with a slide block 15, and the sides where the two support plates 2 are close to each other are provided with a chute 14, and the slide block 15 is slidably installed in the inside of the chute 14. Reasonably, when the driven rack plate 7 slides in the vertical direction, it can also drive the slider 15 to slide inside the chute 14, and through the restriction of the chute 14 on the slider 15, the vertical position of the driven rack plate 7 can be improved. Stability when swiping in direction.

Referring to Fig. 4, the sides of the two support plates 2 close to each other are provided with a transmission mechanism for driving the driven rack plate 7 and the drive rack plate 17, and the transmission mechanism includes a first transmission toothed plate 18 and a second transmission toothed plate 13. The sides of the two support plates 2 that are close to each other are rotatably installed with the first transmission toothed plate 18 and the second transmission toothed plate 13 that mesh with each other, the driving rack plate 17 is meshed with the first transmission toothed plate 18, and the driven gear The bar 7 meshes with the second transmission toothed disc 13 .

When performing injection molding, the upper mold 5 is first pushed down by the hydraulic rod 4, so that the upper mold 5 and the lower mold 6 fit together, and during the downward movement of the upper mold 5, the fixed plate 16 and the drive rack plate can be driven 17 moves downward, the driving rack plate 17 drives the first transmission toothed plate 18 and the second transmission toothed plate 13 to rotate, and the second transmission toothed plate 13 drives the driven rack plate 7 to move downward, thereby enabling the driven rack The plate 7 synchronously drives the limit rod 9, the movable plate 10 and the ejector rod 11 to move downward, so that the ejector rod 11 enters the inside of the through hole 12, and the top of the ejector rod 11 is flush with the inner wall of the mold cavity at the bottom of the lower mold 6, And then through the injection hole on the upper mold 5 to the inside of the mold cavity injection molding.

After the product is condensed and formed, the hydraulic rod 4 drives the upper mold 5 to move upwards. At this time, the fixed plate 16, the driving rack plate 17, the first transmission gear plate 18, the second transmission gear plate 13, and the driven rack plate 7 , the limit rod 9, the movable plate 10 and the movement direction of the ejector rod 11 are opposite to the above-mentioned direction of movement. At this time, the ejector rod 11 can be used to eject the injection-molded product inside the mold cavity stably and quickly, so as to improve the ejection of the injection molded product. efficiency.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (5)

1. An injection mold for the preparation of instrument panel plastic parts, comprising a base plate (1), a patrix (5) and a lower die (6), is characterized in that, both sides of the top of the base plate (1) are fixedly connected with a Symmetrically distributed support plates (2), and the top ends of the two support plates (2) are fixedly connected with a top plate (3), and the bottom end of the top plate (3) is fixedly equipped with a hydraulic rod (4), and the The upper mold (5) is fixedly installed on the bottom end of the hydraulic rod (4), and the lower mold (6) is fixedly installed on the top end of the base plate (1); Both sides of the upper mold (5) are fixedly connected with a fixed plate (16), and the bottom end of the fixed plate (16) is fixedly equipped with a drive rack plate (17), and the bottom of the lower mold (6) A movable groove is provided inside, and a movable plate (10) is slidably installed inside the movable groove, and a push rod (11) is fixedly connected to the top of the movable plate (10), and the push rod (11) is ) extends to the inside of the die cavity of the lower die (6); Both sides of the movable plate (10) are fixedly connected with a limit rod (9), and the end of the limit rod (9) extends to the outside of the lower die (6) and is fixedly connected with a driven rack plate ( 7), the driven rack plate (7) is slidingly connected to the support plate (2), and the sides of the two support plates (2) close to each other are provided with a drive rack plate (7) With the transmission mechanism of driving rack plate (17) transmission. 2. The injection mold for the preparation of a plastic instrument panel accessory according to claim 1, wherein a through hole (12) connecting the mold cavity and the movable groove is opened in the lower mold (6), and the The push rod (11) is slidably installed inside the through hole (12). 3. The injection mold for preparing plastic parts of an instrument panel according to claim 1, characterized in that, both sides of the lower mold (6) are provided with limit grooves matching the limit rods (9) (8). 4. The injection mold for the preparation of a kind of instrument panel plastic parts according to claim 1, characterized in that, the side of the driven rack plate (7) away from the movable plate (10) is fixedly connected with a slider ( 15), the sides of the two support plates (2) close to each other are provided with sliding grooves (14), and the sliding blocks (15) are slidably installed inside the sliding grooves (14). 5. The injection mold for the preparation of a kind of instrument panel plastic parts according to claim 1, characterized in that, the transmission mechanism comprises a first transmission toothed disc (18) and a second transmission toothed disc (13), two The sides of the support plate (2) close to each other are all rotatably installed with a first transmission toothed plate (18) and a second transmission toothed plate (13) which are engaged with each other, and the driving rack plate (17) is connected to the first transmission toothed plate (13). The transmission toothed disc (18) is engaged, and the driven rack plate (7) is engaged with the second transmission toothed disc (13).

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