CN204340124U - Mould of plastics internal core-pulling mechanism - Google Patents

Abstract

The utility model discloses a core-pulling mechanism inside a plastic mold, which comprises a sliding guide block, a first sliding block, a fixed positioning plate, a second sliding block slidingly disposed on the positioning plate, and a second sliding block disposed on both sides. Between the third slider, the two sides of the third slider are respectively provided with a first guide slope, the inner surfaces of the two second sliders are vertical surfaces, the upper surface of the first slider has a second guide slope, and the second slider has a second guide slope. The bottom of the three sliders has a third guide slope, and the slide guide block is connected with a cylinder that drives it to slide forward and backward. The cylinder drives the slide guide block to slide forward, and then drives the first slide block to slide forward, through the second guide slope and the third The cooperation of the guide slope makes the third slider slide upwards, and under the action of the first guide slope, the second sliders on both sides move in the opposite direction, so that the mandrel is separated from the plastic product, and synchronous core pulling is realized. Structure Simple and easy to pull the core.

Description

Core-pulling mechanism inside the plastic mold

technical field

The utility model relates to a core-pulling mechanism, in particular to a core-pulling mechanism inside a plastic mould.

Background technique

At present, it is usually necessary to prepare two holes on plastic products as the rotating holes, so the plastic mold for manufacturing plastic products needs to have two mandrels for preparing the rotating holes, but after the preparation is completed, the mandrels need to be pulled out from the rotating holes. One mandrel needs to use two core-pulling mechanisms to pull the core, so the structure of the core-pulling mechanism is complex, the manufacturing cost is high, and the control is inconvenient.

Utility model content

The purpose of the utility model is to overcome the defects in the prior art and provide a core-pulling mechanism inside a plastic mold, which has a simple structure and is convenient for core-pulling.

In order to achieve the above purpose, the technical solution of the utility model is to provide a core-pulling mechanism inside a plastic mold, which includes a sliding guide block, a first slider fixed on the sliding guide block, a fixed positioning plate, Slide the second slider arranged on the positioning plate in the left and right direction, and the third slider arranged between the second sliders on both sides along the up and down direction, and the two sides of the third slider are respectively arranged There is an inclined first guide slope, the inner surfaces of the two second sliders are vertical surfaces matched with the first guide slopes, and the upper surface of the first slider has a second inclined downwards. A guide slope, the bottom of the third slider has a third guide slope matched with the second guide slope, and the sliding guide block is connected with a cylinder that drives it to slide forward and backward.

A further improvement is: the first slider is provided with a dovetail chute parallel to the second guiding slope, and the bottom of the third slider is provided with a protrusion matching the dovetail chute.

The advantages and beneficial effects of the utility model are: the cylinder drives the sliding guide block to slide forward, and then drives the first slider to slide forward, and through the cooperation of the second guide slope and the third guide slope, the third slide slides upward, Under the action of the first guiding slope, the second sliding blocks on both sides move in opposite directions, so that the mandrel is separated from the plastic product, and synchronous core pulling is realized. The structure is simple and the core pulling is convenient.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

Among them: 1. Sliding guide block; 2. The first slider; 3. The second slider; 4. The third slider; 5. The first guide slope; 6. The second guide slope; 7. Cylinder; 8. Dovetail chute.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figure 1, a core-pulling mechanism inside a plastic mold includes a sliding guide block 1, a first slider 2 fixedly arranged on the sliding guide block 1, a fixed positioning plate, and a sliding device arranged along the left and right directions. The second slide block 3 on the positioning plate, the third slide block 4 arranged between the second slide block 3 on both sides along the up and down direction, the two sides of the third slide block 4 are respectively provided with Inclined first guide slope 5, the inner surfaces of the two second sliders 3 are vertical surfaces matched with the first guide slope 5, and the upper surface of the first slider 2 has a downward slope The second guide inclined surface 6, the bottom of the third slider 4 has a third guide inclined surface matched with the second guide inclined surface 6, and the sliding guide block 1 is connected with a cylinder 7 that drives it to slide forward and backward.

In order to make the mutual movement between the first slider 2 and the third slider 4 relatively stable, the first slider 2 is provided with a dovetail chute 8 parallel to the second guiding slope 6, and the third The bottom of the slider 4 is provided with a protrusion matching the dovetail chute 8, and then when the first slider 2 drives the third slider 4 up and down, the movement of the third slider 4 is relatively stable without damaging the molding. The shape of the final plastic product.

Description of the working process: the cylinder 7 drives the sliding guide block 1 to slide forward, and then drives the first slide block 2 to slide forward, and through the cooperation of the second guide slope 6 and the third guide slope, the third slide block 4 slides upwards. Under the action of the first guide slope 5, the second slide blocks 3 on both sides move in opposite directions, so that the mandrel is separated from the plastic product.

The above is only the preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (2)

1. a mould of plastics internal core-pulling mechanism, it is characterized in that: comprise slide-and-guide block, be fixedly installed on the first slide block on described slide-and-guide block, the location-plate be fixedly installed, the second slide block on described location-plate is slidably arranged in along left and right directions, the 3rd slide block described in both sides between the second slide block is arranged at along above-below direction, the both sides of described 3rd slide block are respectively arranged with the first guiding surface of inclination, the inner surface of two described second slide blocks is the vertical plane matched with described first guiding surface, the upper surface of described first slide block has the second guiding surface of downward-sloping setting, the bottom of described 3rd slide block has the 3rd guiding surface matched with described second guiding surface, described slide-and-guide block is connected with the cylinder driving its slide anteroposterior.

2. mould of plastics internal core-pulling mechanism as claimed in claim 1, it is characterized in that: described first slide block offers the dovetail chute paralleled with described second guiding surface, the bottom of described 3rd slide block is provided with the projection matched with described dovetail chute.