CN201140500Y

CN201140500Y - Plastic injection mould with rotary die cavity

Info

Publication number: CN201140500Y
Application number: CNU2007201151517U
Authority: CN
Inventors: 张欢庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-17
Filing date: 2007-09-17
Publication date: 2008-10-29
Anticipated expiration: 2017-09-17

Abstract

A mould cavity rotating plastic injection mould is disclosed, which comprises an upper mould cavity, a lower mould cavity and a mould core, and is characterized in that the bottom portion of the lower mould cavity is fixed on a rotating mechanism, a top bar is fixed on the lower portion of a sprue of the lower mould cavity, an oblique top block is fixed on a support plate of the lower mould cavity, and the oblique plane of the ovlique top block is contacted with the top bar. The mould cavity rotating plastic injection mould has the advantages that the injection mould adopts the rotating mould cavity not a swing stem, the size of an injection machine corresponds to the size of manufactured products, utilization of equipments is reasonable, the product sprue is gored up by the top bar to drive the whole product to be ejected from the lower mould cavity successfully, thereby achieving automatization, low intensity of labor due to without fixing mechanical arms additionally or manual operation and heigh production efficiency, and being used for manufacturing various arcuate products.

Description

Mold cavity rotary plastic injection mould

Technical field

The utility model relates to injection mold, particularly relates to mold cavity rotary plastic injection mould, belongs to the plastics machinery field, is mainly used in the processing of hollow arc product (working of plastics).

Background technology

Hollow arc working of plastics (for example the UT accessory in the water-drainage tube part etc.) adds the demoulding in man-hour in injection and is difficult to, prior art adopts the rotary demoulding of circular arc core, be that hydraulic jack is fixed on the rotating stripping demoulding of realizing the circular arc core on the mould bases by fork push-and-pull centering block, because the rotation amplitude of fork is bigger in knockout course, therefore adopt machine to be far longer than the molding machine that this product injection volume equates, production of articles factory has only employing " big machined miscellaneous goods ", causes utilization rate of equipment and installations low.In addition, because the die cavity bottom is equipped with centering block and is interfered with ejector pin of die set, make mould that mould emptier can't be installed, and can only lean on manipulator or artificial the taking-up.If shrink few material with some, it is smooth to produce the demoulding, and production efficiency is low.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming that prior art exists, and provides a kind of and drives the mold cavity rotation by power the arc product is deviate from, and it is low that mould is suitable for type, and equipment utilization is reasonable, automatic demoulding, the mold cavity rotary plastic injection mould that production efficiency is high.

The technical scheme of the utility model mold cavity rotary plastic injection mould is: comprise the mould that upper and lower die cavity and core are formed, the bottom that it is characterized in that lower impressions is installed on the rotating mechanism, push rod is installed in the cast gate below of lower impressions, on the lower impressions support plate slanted kicking block is installed, the inclined-plane of slanted kicking block contacts with push rod.

Mold cavity rotary plastic injection mould of the present utility model, be applicable to various arc products (the UT product in the water-drainage tube part for example, this product mainly plays in the pipeline foul smell problem that stops the refluence of ducted foul smell at UT pipe bottom ponding and cause) in the processing, be characterized in lower impressions is installed on the rotating mechanism, after injecting products is finished, take down upper impression and the core mould of pulling out the product straight-tube portion, arc core mould is connected straight-bar, opening rotating mechanism makes the lower impressions rotation and drives product simultaneously, about about Rotate 180 °, the arc core breaks away from product, this moment, the push rod of cast gate below began to collide with the inclined-plane of slanted kicking block, continue in lower impressions under the situation of rotation, push rod drives product gate part jack-up entire product and breaks away from lower impressions, the one, the die cavity rotation does not have fork, injection machine is big or small corresponding with converted products, equipment utilization is reasonable, driving entire product by push rod jack-up product cast gate deviates from from lower impressions, the demoulding is smooth, realize automation, do not need to adorn manipulator or manual operations in addition, labor strength is low, the production efficiency height.

Mold cavity rotary plastic injection mould of the present utility model, its described rotating mechanism comprises the rotating disk that lower impressions is installed, connect the rotating shaft of rotating disk, drive gear, the bearing of rotating shaft, promote the tooth bar and the power that is connected tooth bar of gear, in actual product, the technical scheme of rotating mechanism is a lot, can adopt rotating disk, rotating shaft, gear, tooth bar and power to form.Its described power is motor or oil motor or hydraulic jack, and its power is available internal combustion engine etc. also.

Description of drawings

Fig. 1 is the schematic top plan view before mold cavity rotary plastic injection mould ejects product;

Fig. 2 is the A-A cross-sectional schematic of Fig. 1;

Fig. 3 is the stereoscopic-state schematic diagram before mold cavity rotary plastic injection mould ejects product;

Fig. 4 is the cross-sectional schematic of mold cavity rotary plastic injection mould when ejecting product;

Fig. 5 is the stereoscopic-state schematic diagram of mold cavity rotary plastic injection mould when ejecting product.

The specific embodiment

The utility model discloses a kind of mold cavity rotary plastic injection mould, comprise the mould that upper and lower die cavity and core are formed, the bottom that it is characterized in that lower impressions 8 is installed on the rotating mechanism, push rod 6 is installed in cast gate 7 belows of lower impressions 8, slanted kicking block 9 is installed on the lower impressions support plate, and the inclined-plane of slanted kicking block 9 contacts with push rod 6.After injecting products is finished, take down upper impression, and pull out the core mould of product straight-tube portion, arc core mould is connected straight-bar, as shown in Figure 1-Figure 3, open rotating mechanism and make lower impressions 8 rotations and drive product simultaneously, about about Rotate 180 °, the arc core breaks away from product, this moment, push rod 6 beginnings of cast gate 7 belows were collided with the inclined-plane of slanted kicking block 9, as Fig. 4, shown in Figure 5, continue under the situation of rotation in lower impressions 8, push rod 6 drives 7 jack-up of product cast gate entire product and breaks away from lower impressions 8, the advantage of this structure is that the die cavity rotation does not have fork, and injection machine is big or small corresponding with converted products, and equipment utilization is reasonable, driving entire product by push rod 6 jack-up product cast gates 7 deviates from from lower impressions 8, the demoulding is smooth, realizes automation, does not need to adorn in addition manipulator or manual operations, labor strength is low, the production efficiency height.Its rotating mechanism comprises the rotating disk 5 that lower impressions 8 is installed, connect the rotating shaft 4 of rotating disk 5, drive gear 2, the bearing 3 of rotating shaft 4, promote the tooth bar 1 and the power that is connected tooth bar 1 of gear, in actual product, the technical scheme of rotating mechanism is a lot, can adopt rotating disk, rotating shaft, gear, tooth bar and power to form.Its described power is motor or oil motor or hydraulic jack, also available internal combustion engine etc.

Claims

1, mold cavity rotary plastic injection mould, comprise the mould that upper and lower die cavity and core are formed, the bottom that it is characterized in that lower impressions (8) is installed on the rotating mechanism, push rod (6) is installed in cast gate (7) below of lower impressions (8), slanted kicking block (9) is installed on the lower impressions support plate, and the inclined-plane of slanted kicking block (9) contacts with push rod (6).

2, mold cavity rotary plastic injection mould as claimed in claim 1, it is characterized in that described rotating mechanism comprises the rotating disk (5) that lower impressions (8) is installed, connect the rotating shaft (4) of rotating disk (5), drive gear (2), the bearing (3) of rotating shaft (4), promote the tooth bar (1) and the power that is connected tooth bar (1) of gear.

3, mold cavity rotary plastic injection mould as claimed in claim 2 is characterized in that described power is motor or oil motor or hydraulic jack.