CN211709863U - Floating needle positioning injection mold - Google Patents

Abstract

The utility model discloses a float needle location injection mold, locating component includes: the device comprises a sliding block (1), an oil cylinder (2), a floating needle (3), a spring (4), an insert (5), a front die (6) and a rear die (7); the device is characterized in that the sliding block (1) is placed between the front die (6) and the rear die (7), the floating needle (3) is arranged on the inner side of the sliding block (1) and can move left and right in the sliding block, the oil cylinder (2) and the spring (4) are respectively arranged on two sides of the floating needle (3) and arranged in the sliding block (1), the insert (5) is arranged in a closed space formed after the sliding block (1), the front die (6) and the rear die (7) are closed, and the floating needle (3) extends out of the sliding block (1) to the position of the insert (5) in the cavity so as to position the insert (5); after the injection molding of the utility model, the product appearance has no holes generated by a positioning mechanism, the product is more beautiful, and has the functions of protecting built-in parts such as water resistance, corrosion resistance and the like; can effectively reduce production processes and reduce labor and production cost.

Description

A floating needle positioning injection mold

technical field

The utility model relates to a floating needle positioning injection mould, which belongs to the technical field of moulds.

Background technique

At present, for the injection molding of Insert plastic parts, various inserts are placed in the mold and positioned, and then injection molded. The production of inserts wrapped in plastic is a common production method.

The traditional injection production method of insert plastic parts is a mold reserved fixing mechanism. When the insert is placed in the mold, it plays the role of fixing the insert. After the insert is fixed by the fixing mechanism in the mold, conventional injection molding production is performed. When the product is taken out after the production is completed, there will be holes in the fixed parts of the mold, and the injection material cannot completely cover the parts placed in the mold.

Production using the above method usually keeps the insert in the plastic product in the correct position during the injection process, requiring a mold mechanism to hold the insert, creating a plastic hole with the insert at the end of the plastic hole and leaking plastic. In this production method, in addition to the poor appearance, when insert plastic products have special requirements and the appearance is not allowed to have holes (such as electronic plug-in products), it is necessary to follow up on the plastic holes for secondary glue treatment. increase cost

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a floating needle positioning injection mold, which can avoid holes in the appearance of the product, improve the aesthetics of the product, and further reduce the cost of the product.

In order to achieve the above purpose, the utility model provides the following technical solutions: a floating needle positioning injection mold, which includes:

at least one set of positioning components;

The positioning assembly includes: a slider, an oil cylinder, a floating needle, a spring, an insert, a front mold and a rear mold;

The slider is placed between the front mold and the rear mold, the floating needle is arranged on the inner side of the slider and can move left and right in it, the oil cylinder and the spring are respectively arranged on both sides of the floating needle and are arranged in the slider, and the insert is arranged in the slider. In the closed space formed after the slider, the front mold and the rear mold are closed, the floating needle extends out of the slider to the position of the insert in the cavity to position the insert.

The oil cylinder is installed in the positioning hole of the slider.

The oil cylinder controls the ejection of the floating needle, and the spring controls the retraction of the floating needle.

Compared with the existing structure: the Insert plastic product produced by the utility model, after injection molding, has no holes produced by the positioning mechanism on the appearance of the product, the product is more beautiful, and has the functions of protecting built-in parts such as waterproofing and anti-corrosion; it can effectively reduce Production process, reduce labor and production costs.

Description of drawings

1 is a schematic diagram of an existing mold structure;

Fig. 2 is the product schematic diagram of the present utility model;

FIG. 3 is an enlarged view of the core structure of the present invention.

In the picture: 1. Slider, 2. Oil cylinder, 3. Floating needle, 4. Spring, 5. Insert, 6. Front die, 7. Back die.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figure 1 to Figure 3: the utility model is a floating needle positioning injection mold, at least one set of positioning components;

The positioning assembly includes: slider 1, oil cylinder 2, floating needle 3, spring 4, insert 5, front mold 6 and rear mold 7;

The slider 1 is placed between the front mold 6 and the rear mold 7, the floating needle 3 is arranged on the inside of the slider 1 and can move left and right therein, the oil cylinder 2 and the spring 4 are respectively arranged on both sides of the floating needle 3 and are arranged in In the slider 1, the insert 5 is arranged in the closed space formed after the slider 1, the front mold 6 and the rear mold 7 are closed. Piece 5.

The oil cylinder 2 is installed in the positioning hole of the slider 1 .

The oil cylinder 2 controls the ejection of the floating needle 3 , and the spring 4 controls the retraction of the floating needle 3 .

Put the insert 5 into the rear mold 7, push the slider 1 to the correct position, and then the floating needle 3 presses against the insert 5 under the action of the oil cylinder 2, and the front mold 6 and the rear mold 7 are closed to inject the plastic product. When the plastic product is not completely filled, the oil cylinder 2 stops moving, and the floating needle 3 is quickly retracted by the spring 4, and the plastic product continues to be filled, thereby obtaining an Insert plastic product with no holes in appearance.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any minor modifications, equivalent replacements and improvements made to the above embodiments according to the technical essence of the present invention shall be included in the within the protection scope of the technical solution of the present invention.

Claims (3)

1. A floating needle positioning injection mold, comprising:

at least one set of positioning components;

the positioning assembly comprises: the device comprises a sliding block (1), an oil cylinder (2), a floating needle (3), a spring (4), an insert (5), a front die (6) and a rear die (7);

the novel die is characterized in that the sliding block (1) is placed between the front die (6) and the rear die (7), the floating needle (3) is arranged on the inner side of the sliding block (1) and can move left and right in the sliding block, the oil cylinder (2) and the spring (4) are respectively arranged on two sides of the floating needle (3) and arranged in the sliding block (1), the insert (5) is arranged in a closed space formed after the sliding block (1), the front die (6) and the rear die (7) are closed, and the floating needle (3) extends out of the position of the insert (5) from the sliding block (1) to the cavity to position the insert (5).

2. The float needle positioning injection mold according to claim 1, characterized in that the oil cylinder (2) is installed in the positioning hole of the slide block (1).

3. The floating needle positioning injection mold according to claim 1 or 2, wherein the cylinder (2) controls the ejection of the floating needle (3), and the spring (4) controls the retraction of the floating needle (3).

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