CN204309168U - The insert mechanism of cylinder type metal insert injection mold - Google Patents

Abstract

The utility model provides an insert mechanism of a cylindrical metal insert injection mold, which comprises a cylindrical metal insert, a cylindrical positioning column and a core, wherein the core has a through hole vertically penetrating, and the cylinder The type metal insert is sleeved on the upper part of the positioning column, and the lower part of the positioning column is fixed in the through hole of the core, and the upper surface of the core and the intersection of the through hole are uniformly provided with horizontal magnet installation grooves along the circumference of the through hole; A groove corresponding to the magnet installation groove is evenly dug in the middle part of the positioning column along the outer circumference, and the magnet installation groove cooperates with the groove to accommodate the magnet. The utility model guarantees the fixation of the cylindrical metal insert through the magnet, so that it will not be displaced during the mold clamping and injection molding process, or the mold will be damaged due to falling, thereby reducing the mold damage and improving the stability of the mold production. The manufacturing process of the device is simple and the cost is low.

Description

Insert Mechanism of Cylindrical Metal Insert Injection Mold

technical field

The utility model relates to a device for installation, positioning and position fixing in the field of cylindrical metal insert injection molds, in particular to an insert mechanism of a cylindrical metal insert injection mold.

Background technique

In order to meet the requirements for the strength and installation accuracy of plastic parts, there are more and more design schemes for cladding metal parts in plastic parts, and the requirements are getting higher and higher. Especially for thin-walled cylindrical metal inserts with a wall thickness of 1-1.5mm, most of them are positioned and fixed in the mold by manual installation. In the insert mechanism installed in this way, the cylindrical metal insert and the It is easy to shift between the cores, or the mold is damaged due to the drop of the insert. In addition, because the metal insert is placed in the mold, there is a position error, and at the same time, it is easy to loosen and fall off when the mold moves during production, so its stability is not high. , with a low degree of automation. These unstable factors of thin-walled cylindrical metal inserts will increase the risk of automatic production.

Utility model content

The purpose of the utility model is to provide an insert mechanism of a cylindrical metal insert injection mold, so as to solve the instability of the cylindrical metal insert in the injection molding installation in the prior art.

The insert mechanism of the cylindrical metal insert injection mold provided by the utility model includes a cylindrical metal insert, a cylindrical positioning column and a core, wherein the core has a vertical through hole, and the cylindrical The metal insert is set on the upper part of the positioning column, and the lower part of the positioning column is fixed in the through hole of the core. The upper surface of the core and the intersection of the through hole are uniformly provided with horizontal magnet installation grooves along the circumference of the through hole; positioning A groove corresponding to the magnet installation groove is evenly dug along the outer circumference in the middle of the column, and the magnet installation groove cooperates with the groove to accommodate the magnet.

The cylindrical metal insert is installed on the upper part of the positioning column by the manipulator, and the inner circumference of the cylindrical metal insert roughly fits the outer circumference of the positioning column.

The through hole has a first part and a second part arranged up and down, the lower part of the positioning column is accommodated in the first part, and the lower part of the positioning column is screwed with the hexagon socket head screw passing through the second part, thereby vertically fixing the positioning column to the core.

The diameter of the first portion is greater than the diameter of the second portion.

The magnet mounting groove is crescent-shaped, and the inner arc of the magnet mounting groove overlaps with the circumference of the through hole.

The groove cooperates with the magnet installation groove to form a cylindrical groove, and the magnet is accommodated in the cylindrical groove.

There are 4 magnet mounting slots and grooves.

There is a distance of 0.3-0.5 mm between the outer circumference of the magnet mounting groove of the core and the outer circumference of the cylindrical metal insert.

The magnet is a high temperature resistant magnet for the mould.

The utility model ensures the fixation of the cylindrical metal insert through the design optimization of the mold structure and the adsorption force of the magnet, so that the cylindrical metal insert will not be displaced during the mold clamping and injection molding process, or the mold will not be caused by falling. Damage, thereby reducing the mold damage caused by metal insert loosening and falling off, improving the safety of mold production and the stability of production cycle, which is conducive to the realization of automatic production in subsequent production. In addition, the utility model has the advantages of simple device, stable and reliable operation, high sensitivity of production signal, simple manufacturing process and low cost.

Description of drawings

Fig. 1 is a schematic diagram of installation of a plastic part and a cylindrical metal insert according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the installation of the insert mechanism of the cylindrical metal insert injection mold according to an embodiment of the present invention;

Fig. 3 is a partial top view of the core of the insert mechanism shown in Fig. 2;

Fig. 4 is a three-dimensional schematic diagram of a positioning column of the insert mechanism shown in Fig. 2;

Fig. 5 is a cross-sectional view of the positioning column of Fig. 4, showing the distribution of magnet mounting slots;

Fig. 6 is a schematic diagram of an insert mechanism of a cylindrical metal insert injection mold with magnets installed.

Detailed ways

Below in conjunction with specific embodiment, the utility model is described further. It should be understood that the following examples are only used to illustrate the utility model but not to limit the scope of the utility model.

As shown in Figure 1, the cylindrical metal insert 10 of the present invention is located in the cylindrical plastic part 2, and the outer circumference of the cylindrical metal insert 10 is close to the plastic part 2, so that the cylindrical metal insert Part 10 is combined with plastic part 2 as a whole.

In order to ensure the quality of the product, it is necessary to firmly fix the cylindrical metal insert 10 in the mold during the production process. As shown in Figure 2, the insert mechanism of the cylindrical metal insert injection mold provided by the utility model includes a cylindrical metal insert 10, a positioning column 30 and a core 40, wherein 10 sets of cylindrical metal inserts It is arranged on the upper part of the cylindrical positioning column 30 , and the lower part of the positioning column 30 is fixed in the core 40 . In the embodiment shown in FIG. 2 , the cylindrical metal insert 10 is installed on the positioning column 30 by the manipulator 20 , and the inner circumference of the cylindrical metal insert 10 after installation and positioning approximately fits the outer circumference of the positioning column 30 The core 40 has a vertical cylindrical through hole, the through hole has a first part 42 and a second part 43, the positioning column 30 is accommodated in the first part 42 of the through hole of the core 40, and the hexagon socket head screw 50 passes through the through hole The second part 43 of the hole is screwed with the lower part of the positioning column 30 so as to vertically fix the positioning column 30 on the core 40 .

Fig. 3 shows the through hole structure of the core 40 according to an embodiment of the present invention, wherein, the intersection of the upper surface of the core 40 and the through hole is uniformly provided with four horizontal magnet mounting slots 41 along the circumference of the through hole, The magnet mounting groove 41 is crescent-shaped, and the inner arc of the magnet mounting groove 41 overlaps with the circumference of the through hole. The diameter of the first portion 42 of the through hole is larger than the diameter of the second portion 43 . In addition, it should also be noted that there is a distance of 0.3-0.5 mm between the outer circumference of the magnet mounting groove 41 of the core 40 and the outer circumference O of the cylindrical metal insert 10, since the metal insert 10 is made of plastic parts 2 Covering (as shown in Figure 1), if the maximum profile of the magnet mounting groove 41 is greater than the outer circumference O of the metal insert 10, plastics may enter the magnet mounting groove 41, resulting in abnormal appearance of the product.

Fig. 4 shows a positioning column 30 according to an embodiment of the present invention, the main body of the positioning column 30 is a cylinder 31, and the upper and lower ends of the cylinder 31 are symmetrically provided with column heads 32, and the bottom of the cylinder 31 is vertically There are screw holes matched with hexagon socket head cap screws. Four grooves 33 corresponding to the magnet installation grooves 41 are evenly arranged in the middle of the cylinder 31 along the outer circumference.

As shown in Figure 5, it is a schematic cross-sectional view of the groove. In the embodiment shown in Figure 5, the groove 33 is approximately circular, and the groove 33 is complementary to the magnet mounting groove 41, and the two form a complete circular groove. So as to accommodate the magnet. Those skilled in the art should understand that the shape and quantity of the groove 33 and the magnet mounting groove 41 are only examples and not limiting. The groove 33 and the magnet mounting groove 41 can be any shape capable of accommodating magnets, such as a rectangle, etc. And the amount is such that the attractive force of the magnet is enough to stabilize the embedded structure. In addition, the type of magnet used in the utility model is a high-temperature-resistant magnet for molds, and the size and type of the magnet can be designed according to the size of the metal insert.

During the use of the utility model, the magnet 60 is first installed in the positioning column 30 through the crescent-shaped mounting groove 41; the positioning column 30 is fixed in the core 40 through the hexagon socket head screw 50; the cylindrical metal insert 10 is fixed by the manipulator 20 is installed on the upper part of the positioning column 30, and the position of the cylindrical metal insert 10 is fixed by the high temperature resistant magnet 60. The magnet 60 can ensure that the cylindrical metal insert 10 is always in a stable state in the vertical direction. The adsorption force of the magnet ensures the fixation of the cylindrical metal insert, thereby reducing the mold damage caused by the loosening and falling of the metal insert, and improving the safety of mold production and the stability of production cycle. The utility model has the advantages of simple device, stable and reliable operation, high production signal sensitivity, simple manufacturing process and low cost.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, and various changes can also be made to the above-mentioned embodiments of the present utility model. That is to say, all simple and equivalent changes and modifications made according to the claims of the utility model application and the contents of the description all fall within the protection scope of the claims of the utility model patent. What the utility model does not describe in detail is conventional technical contents.

Claims (9)

1. the insert mechanism of a cylinder type metal insert injection mold, comprise cylinder type metal insert, columniform locating dowel and core, wherein, described core has the through hole vertically run through, described cylinder type metal insert is sheathed on the top of described locating dowel, the bottom of described locating dowel is fixed in the described through hole of described core, it is characterized in that, the upper surface of described core and described through hole intersection are along the magnet mounting groove arranging horizontal direction of the even circumferential of described through hole; Dig the groove corresponding with described magnet mounting groove uniformly along excircle in the middle part of described locating dowel, described magnet mounting groove and described groove fit are with accommodating magnet.

2. the insert mechanism of cylinder type metal insert injection mold according to claim 1, it is characterized in that, described cylinder type metal insert is installed on described locating dowel top by manipulator, and the inner periphery of described cylinder type metal insert is fitted the excircle of described locating dowel.

3. the insert mechanism of cylinder type metal insert injection mold according to claim 1, it is characterized in that, described through hole has Part I setting up and down and Part II, described locating dowel bottom is placed in described Part I, the bottom of described locating dowel screws togather with through described Part II soket head cap screw, thus described locating dowel is vertically fixed on described core.

4. the insert mechanism of cylinder type metal insert injection mold according to claim 3, is characterized in that, the diameter of described Part I is greater than the diameter of Part II.

5. the insert mechanism of cylinder type metal insert injection mold according to claim 1, is characterized in that, described magnet mounting groove is crescent, the inner arc of described magnet mounting groove overlapping with the circumference of described through hole.

6. the insert mechanism of cylinder type metal insert injection mold according to claim 5, is characterized in that, described groove coordinates composition one cylinder shape groove with described magnet mounting groove, and described magnet is placed in described cylinder shape groove.

7. the insert mechanism of cylinder type metal insert injection mold according to claim 6, is characterized in that, described magnet mounting groove and described groove are 4.

8. the insert mechanism of cylinder type metal insert injection mold according to claim 5, is characterized in that, has the spacing of 0.3-0.5mm between the excircle of the magnet mounting groove of described core and the excircle of described cylindrical metal inserts.

9. the insert mechanism of cylinder type metal insert injection mold according to claim 1, is characterized in that, described magnet is the high temperature resistant magnet of mould.