CN202088349U

CN202088349U - Inner circle reverse buckle demolding mechanism

Info

Publication number: CN202088349U
Application number: CN2011200408898U
Authority: CN
Inventors: 贝理纯
Original assignee: SUNWAY PLASTIC INJECTION MOULD (ZHUHAI) CO Ltd
Current assignee: SUNWAY PLASTIC INJECTION MOULD (ZHUHAI) CO Ltd
Priority date: 2011-02-17
Filing date: 2011-02-17
Publication date: 2011-12-28
Anticipated expiration: 2021-02-17

Abstract

The utility model discloses an inner circle reverse buckle demolding mechanism, which comprises a fixed plate, a press block, a movable plate, a forklift, large line positions and small line positions, wherein a notch is arranged at the lower part of the fixed plate and is used for being fixed with the outside, a press plate is internally embedded above the fixed plate, the movable plate is arranged above the press plate, the forklift and the movable plate are fixedly connected through screws, the large line positions and the small line positions are arranged in a conical cavity arranged between the lower notch of the fixed plate and the upper press plate to do internally sliding actions and are in circumferential distribution at intervals in pairs, in addition, the inclination of the small line positions is greater than that of the large line positions, the forklift is positioned in the center of a circle formed by the large line positions and the small line positions, and connecting parts are respectively made into a dovetail groove shape. During the mold opening, the small line positions firstly move to the center, and the large line positions are gradually contracted, so the products can not be damaged, in addition, products with full circle revere buckle structures can be processed, in addition, dovetail grooves are adopted at the connecting parts, when the forklift does mechanical relative movement, the movement precision is high, and in addition, the stability is high.

Description

A kind of inner circle reverse buckle demolding mechanism

Technical field

The utility model relates to the plastic rubber mold structure design field, particularly a kind of interior circle back-off mould emptier.

Background technology

At present, the method that the plastic mould industry adopts for the interior round back-off structure demoulding mainly contains two kinds, and a kind of is ejection device by force, pulls product easily during this method demoulding, only is applicable to the more shallow and less demanding product of face shaping of some back-offs; Another kind is that product full circle back-off is modified as the segmentation back-off, adopts the mode of taper pin to eject then, and this method is not suitable for some products that need inner full circle back-off.

Therefore, need to provide a kind of product that neither damages to process the mould emptier that there is the product of full circle back-off structure inside again.

The utility model content

The shortcoming that main purpose of the present utility model is to overcome prior art provides a kind of interior circle back-off mould emptier with not enough, and it can not damage product in knockout course, and can process the product that there is the full circle back-off structure inside.

The purpose of this utility model realizes by following technical scheme: a kind of inner circle reverse buckle demolding mechanism, comprise fixed head, briquetting, portable plate, shovel, big line position and little line position, the fixed head bottom has a breach to be used for fixing with the external world, pressing plate is embedded in the fixed head upper grooves, portable plate is arranged at the upside of pressing plate, and shovel is connected connection with portable plate; Big line position and little line position are arranged to be done interior slip in the conical cavity between fixed head down gap and the top hold-down and does, and the interval is circle distribution in twos, and little line position gradient is greater than big line position; Shovel is positioned at the circular core center of big line position, little line position formation, and connecting portion is made respectively the dovetail groove shape.

As preferably, described big line position and little line position respectively have three.

Principle of the present utility model: when die sinking, portable plate pulling shovel is done the action of loosing core to large and small line position, large and small line position is can only be to the conical cavity central motion between fixed head down gap and the top hold-down under the restriction of fixed head and briquetting, little line position because of gradient greater than big line position, so in advance inwardly motion, for big line position provides the space of withdrawing from back-off, the more inside Stepwize Shrink motion under the drive by shovel of big line position, thereby withdraw from whole back-offs, realize the purpose of the smooth demoulding.

The utility model compared with prior art has following advantage and beneficial effect:

1, big line position and little line position are arranged at and do interior slip in the conical cavity between fixed head down gap and the top hold-down and do in the utility model, the interval is circle distribution in twos, and little line position gradient is greater than big line position, shovel is positioned at the circular core center of big line position, little line position formation, little line position moves to the center earlier when die sinking, big line position is Stepwize Shrink again, thereby can not damage product, and can process the product that there is the full circle back-off structure inside.

2, connecting portion adopts dovetail groove in the utility model, and when shovel was done mechanical relative motion, kinematic accuracy was high and stable.

Description of drawings

Fig. 1 is a main cutaway view of the present utility model;

Fig. 2 is a schematic diagram of respectively forming structure in the utility model;

Fig. 3 is an A-A cross-sectional schematic among Fig. 1;

Fig. 4 is the structure cutaway view in the utility model knockout course;

Fig. 5 is the perspective view of big line position, little line position and shovel in the utility model.

The specific embodiment

The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.

Embodiment 1

Extremely shown in Figure 5 such as Fig. 1, a kind of inner circle reverse buckle demolding mechanism, comprise fixed head 1, briquetting 2, portable plate 3, shovel 5, big line position 6 and little line position 9, fixed head 1 bottom has a breach to be used for fixing with the external world, pressing plate 2 is embedded in fixed head 1 top, portable plate 3 is above pressing plate 2, and shovel 5 is fixedly connected with by screw 4 with portable plate 3, and the shovel structure as shown in Figure 5; Big line position 6 and little line position 9 are arranged to be done interior slip in the conical cavity between fixed head 1 down gap and the top hold-down 2 and does, and the interval is circle distribution in twos, and little line position 9 gradients are greater than big line position 6; Shovel 5 is positioned at the circular core center of big line position 6, little line position 9 formations, and connecting portion is made respectively the dovetail groove shape.

As Fig. 3 and shown in Figure 5, big row position 6 in the utility model and little row position 9 respectively have three.

Principle of the present utility model: structure as shown in Figure 5, when die sinking, 5 pairs of large and small line positions of portable plate 3 pulling shovels are done the action of loosing core, large and small line position can only be to the inner circle central motion under the restriction of fixed head 1 and briquetting 2, little line position because of the motion gradient greater than big line position, so in advance inwardly motion is for after big line position provides the space of motion, the more inside Stepwize Shrink motion under the drive by shovel 5 of big line position, thus reach the purpose of the demoulding.

The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims

1. inner circle reverse buckle demolding mechanism, comprise fixed head, briquetting, portable plate, shovel, big line position and little line position, the fixed head bottom has a breach to be used for fixing with the external world, pressing plate is embedded in the fixed head top, and portable plate is above pressing plate, and shovel is connected connection with portable plate, it is characterized in that, big line position and little line position are arranged to be done interior slip in the conical cavity between fixed head down gap and the top hold-down and does, and the interval is circle distribution in twos, and little line position gradient is greater than big line position; Shovel is positioned at the circular core center of big line position, little line position formation, and connecting portion is made respectively the dovetail groove shape.

2. inner circle reverse buckle demolding mechanism according to claim 1 is characterized in that, described big line position and little line position respectively have three.