CN201077135Y - Die structure replacing big inlay pieces rapidly - Google Patents

Abstract

The utility model relates to a die structure for rapid replacing different big inserts, comprising an upper fixed plate (01), an A plate (02), a big insert (03), a plurality of retaining screws (04), a plurality of locating rings (05), an ingate sleeve (06) and a screw hole of lifting lug (09) as well as a guide pillar (07) and a screw hole of lifting lug (08). Two guide pillar holes are arranged on the A plate (02) and the big insert (03) respectively and the screw hole of lifting lug (08) is arranged on the side of the big insert (03). The utility model can reduce the time of replacing the big insert by more than three times compared with the prior art and the big insert adopts the front screw fixing mode, which facilitates the assembly and the maintenance greatly. The utility model can be used in the manufacture of the plastic inject class mold and alloy inject class mold, such as household-appliance, automobile, airplane and engine.

Description

Mold structure for quick change of large inserts

technical field

The utility model relates to the inner structure of a mould, in particular to a mold structure which can quickly replace different large inserts for a plastic injection mold and an alloy injection mold for trial mode.

Background technique

In the actual mold trial or production, there are cases where the same mold can produce different products by replacing inserts. In the current mold structure, the following two methods are basically used for quick replacement of large inserts:

1. As shown in Figure 1, generally after the front (rear) mold is lowered, unscrew the fixing screw (04), use a pin puller (commonly used tool for mold fitters) to install it into the screw hole (09) of the lifting ring, and insert Pull out the large insert (03) from plate A (02) for a certain distance, then remove the pin puller, replace the lifting ring into the screw hole (09) of the lifting ring, and move the large insert away from plate A (02), thus completing this a replacement process;

2. As shown in Figure 2, after the front (rear) mold is lowered, separate the upper fixing plate (01) from the A plate (02), and then unscrew the fixing screw (04), and use the pin puller ( Die fitter’s common tool) into the ring screw hole (09), pull out the large insert (03) from plate A (02) for a certain distance, then remove the pin puller, replace the ring into the ring screw hole (09) Here, the large insert is moved away from plate A (02), thus completing the replacement process.

Both of the above two methods have many problems such as time-consuming and labor-intensive replacement of inserts, and the injection molding machine cannot be effectively utilized. There is an urgent need for a method that can increase work efficiency.

Contents of the invention

The purpose of the utility model is to provide a mold structure for quick replacement of large inserts, which can effectively utilize the injection molding machine, so that the time used for replacing large inserts is greatly reduced.

Another object of the present invention is to provide a mold structure for quickly replacing large inserts, so that the mold does not need to be lowered from the injection molding machine, but the large inserts can be replaced directly through the guide pillars.

The utility model is achieved in that:

A mold structure for quick replacement of large inserts, including upper fixing plate (01), A plate (02), large insert (03), fixing screws (04), positioning ring (05), sprue sleeve (06) And ring screw holes (09), also include guide posts (07) and ring screw holes (08), the A plate (02) and the large insert (03) are provided with guide post holes, ring screw holes (08) Set on the side of the large insert (03).

The front end surface of the guide post (07) is higher than the top surface (10) of the A plate, so that the large insert (03) is still under the support of the guide post (07) after being pulled out for a certain distance.

The large insert (03) is fixed by front screws.

In the actual mold trial and production, the time required for the replacement of large inserts in the utility model is reduced by more than three times compared with the time required for replacing large inserts in the prior art, and the large inserts are fixed by front screws, so that Assembly and maintenance are very convenient. It can be applied to the manufacture of plastic injection molds and alloy injection molds for home appliances, automobiles, aircrafts, engines and other products.

Description of drawings

Fig. 1 is the schematic diagram of the installation method of the prior art large insert;

Fig. 2 is a schematic diagram of another installation method of a large insert in the prior art;

Fig. 3 is the schematic diagram of the utility model;

Fig. 4 is the front plan view of the mold of the utility model;

In the figure, 01. Upper fixing plate, 02. A plate, 03. Large insert, 04. Fixing screw, 05. Positioning ring, 06. Sprue sleeve, 07. Guide post, 08. Screw hole for lifting ring, 09. Lifting ring Screw holes, 10.A top surface of the board.

Detailed ways

The implementation of the utility model is described in detail below in conjunction with the accompanying drawings:

As shown in Fig. 3 and Fig. 4, the utility model comprises upper fixing plate (01), A plate (02), large insert (03), fixing screw (04), positioning ring (05), sprue sleeve (06 ), guide post (07), ring screw hole (08), ring screw hole (09). The eyebolt screw holes (08) are set on the two sides of the large insert (03). In this embodiment, there are 4 eyebolt screw holes (08), 4 fixing screws (04) and two guide posts (07) It should be noted that the front end surface of the guide post (07) should be higher than the top surface (10) of the A plate.

When installing, first install the large insert (03) into the A-plate (02), fix it with the set screw (04), then put the guide post (07) into the corresponding position of the A-plate (02), and then The upper fixing plate (01) and the A plate (02) are reassembled, and finally the sprue sleeve (06) is installed, and it is positioned with the positioning ring (05).

When replacing the large insert, it is not necessary to remove the mold from the injection molding machine, just unscrew the fixing screw (04), put the pin puller into the screw hole (09) of the lifting ring, and insert the large insert (03) from A Pull out a certain distance from the plate (02), and then remove the pin puller. At this time, the large insert (03) is still supported by the guide post (07), and then screw the lifting ring into the lifting ring screw of the large insert (03). In the hole (08), use the crane to hoist the large insert (3) to the corresponding vacancy, thereby completing the disassembly process of the large insert (03); then use the crane to replace the large insert (structure and large insert) 03) at the corresponding position of the injection molding machine, insert the front end of the guide post (07) into the corresponding hole of the large insert, remove the lifting ring, then push the large insert into the A plate (02), and fix it with the set screw (04).

In other embodiments, two guide pillars can be used as a mold structure for quick replacement of large inserts, or multiple guide pillars can be used for quick replacement of large inserts.

Claims (3)

1. mould structure of changing fast big mold insert, comprise upper mounted plate (01), A plate (02), big mold insert (03), fixed screw (04), locating ring (05), sprue bush (06) and hanging ring screw hole (09), it is characterized in that also comprising guide pillar (07) and hanging ring screw hole (08), described A plate (02) and big mold insert (03) are provided with the guide pillar hole, and hanging ring screw hole (08) is arranged on the side of big mold insert (03).

2. the mould structure of the big mold insert of quick replacing as claimed in claim 1 is characterized in that, described guide pillar (07) front end face will be higher than the end face (10) of A plate, so that big mold insert (03) still is under the support of guide pillar (07) after extracting a segment distance.

3. the mould structure of the big mold insert of quick replacing as claimed in claim 1 is characterized in that described big mold insert (03) fixes by the front screw.

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