阅读说明：本技术 一种周期转换式防堵塞注塑模具 (Periodic switching type anti-blocking injection mold ) 是由 王慧萍 于 2020-11-29 设计创作，主要内容包括：本发明公开了一种周期转换式防堵塞注塑模具,包括基座,所述基座内开设有置料槽,所述置料槽内密封滑动连接有活塞板,所述基座上端面安装有驱动装置,且驱动装置的输出端延伸至置料槽内并与活塞板固定连接,所述基座内还开设有放置槽,所述放置槽内密封转动连接有转盘。本发明通过设置单向轴承、螺纹杆、转盘、流通槽、复位弹簧与多个相互配合的永磁块,在开始注塑时对复位弹簧蓄能,注塑结束后复位弹簧驱动转盘转动,从而对流通槽的位置进行转换并及时对使用后的流通槽进行清洁除渣,进而防止流通槽被堵塞,既提高了设备的使用寿命又能够提高注塑产品的生产质量,且自动化程度高。(The invention discloses a periodic switching type anti-blocking injection mold which comprises a base, wherein a material containing groove is formed in the base, a piston plate is connected in the material containing groove in a sealing and sliding mode, a driving device is installed on the upper end face of the base, the output end of the driving device extends into the material containing groove and is fixedly connected with the piston plate, a placing groove is further formed in the base, and a rotary table is connected in the placing groove in a sealing and rotating mode. The invention has the advantages that through the arrangement of the one-way bearing, the threaded rod, the turntable, the circulation groove, the return spring and the plurality of permanent magnets which are matched with each other, the return spring is stored with energy when the injection molding is started, and the return spring drives the turntable to rotate after the injection molding is finished, so that the positions of the circulation groove are converted, the circulation groove after use is cleaned and deslagged in time, the blockage of the circulation groove is further prevented, the service life of the device is prolonged, the production quality of injection molding products is improved, and the automation degree is high.)

1. The periodic switching type anti-blocking injection mold comprises a base (1) and is characterized in that a material placing groove (2) is formed in the base (1), a piston plate (3) is connected with the material placing groove (2) in a sliding mode in a sealing mode, a driving device (4) is installed on the upper end face of the base (1), the output end of the driving device (4) extends into the material placing groove (2) and is fixedly connected with the piston plate (3), a placing groove (5) is further formed in the base (1), a rotary table (6) is connected with the placing groove (5) in a sealing and rotating mode, through holes are formed in the inner top wall and the inner bottom wall of the placing groove (5) and the inner bottom wall of the material placing groove (2) and the lower end face of the base (1) in a communicating mode, a control groove (14) is coaxially formed in the middle of the rotary table (6), and a one-way bearing (, the inner top wall of the control groove (14) is elastically connected with a threaded rod (16) through a return spring (17), the threaded rod (16) is in threaded connection with a one-way bearing (15), fourth permanent magnets (18) are arranged on one sides of the threaded rod (16) opposite to the piston plate (3), magnetic poles on one sides of the two opposite fourth permanent magnets (18) are the same, and anti-blocking mechanisms are symmetrically arranged on the rotary disc (6);

the anti-blocking mechanism comprises a circulation groove (7) vertically formed in a rotary disc (6), an installation groove (8) is horizontally formed in the wall of the circulation groove (7), a first permanent magnet (9) is connected in the installation groove (8) in a sealing and sliding mode, and a scraper (10) matched with the circulation groove (7) is fixedly connected to one end, far away from the installation groove (8), of the first permanent magnet (9);

second permanent-magnet (11) and third permanent-magnet (12) that correspond with first permanent-magnet (9) are installed to the symmetry on base (1), and the position corresponds first permanent-magnet (9) are the same with the relative one side magnetic pole of second permanent-magnet (11), and the position corresponds first permanent-magnet (9) are opposite with the relative one side magnetic pole of third permanent-magnet (12), slag discharging groove (13) that correspond with third permanent-magnet (12) have been seted up on base (1), and slag discharging groove (13) and standing groove (5) intercommunication.

2. The injection mold of claim 1, wherein the lower side of the material placing groove (2) is communicated with an external feeding mechanism through a communicating pipe, and the lower opening of the slag discharging groove (13) is communicated with an external slag receiving mechanism.

3. A periodically-switched anti-clogging injection mold according to claim 1, characterized in that the lower end surface of the rotating disc (6) is connected with an injection pipe in a sealing and sliding manner, wherein the injection pipe is matched with the circulation groove (7), and the injection pipe is positioned corresponding to the second permanent magnet block (11).

Technical Field

The invention relates to the technical field of injection molds, in particular to a periodic switching type anti-blocking injection mold.

Background

The injection mould specifically indicates that the mould material that will be heated and melt is jetted into the die cavity by injection molding machine high pressure like plastics etc, obtain the production facility of shaping article after cooling solidification, when traditional injection mould used, thereby often can be because the material is complete melting will penetrate the mouth jam, perhaps in the inside remaining liquid raw materials cooling solidification jam of penetrating the mouth of moulding plastics intermittent time, thereby the ejection flow and the speed of liquid raw materials have been reduced, consequently need often clean the change to penetrating the mouth, not only production efficiency has been reduced, still can exert an influence to the quality of product.

To solve the above problem, we propose a cycle switching type anti-clogging injection mold.

Disclosure of Invention

The invention aims to solve the defects that when a traditional injection mold in the prior art is used, a nozzle of the traditional injection mold is often blocked, so that the production efficiency is reduced, and the quality of a product is influenced, and provides a periodically-switched anti-blocking injection mold.

In order to achieve the purpose, the invention adopts the following technical scheme:

a periodic conversion type anti-blocking injection mold comprises a base, wherein a material placing groove is formed in the base, a piston plate is connected in the material placing groove in a sealing sliding mode, a driving device is installed on the upper end face of the base, the output end of the driving device extends into the material placing groove and is fixedly connected with the piston plate, a placing groove is further formed in the base, a rotary table is connected in the placing groove in a sealing rotating mode, the inner top wall and the inner bottom wall of the placing groove are communicated with the inner bottom wall of the material placing groove and the lower end face of the base through holes, a control groove is coaxially formed in the middle of the rotary table, a one-way bearing is coaxially installed on the inner wall of the control groove, a threaded rod is elastically connected to the inner top wall of the control groove through a reset spring and is in threaded connection with the one-way bearing, fourth permanent magnets are arranged on the side, opposite, the rotary table is symmetrically provided with anti-blocking mechanisms;

the anti-blocking mechanism comprises a circulation groove vertically formed in a rotary disc, an installation groove is horizontally formed in the wall of the circulation groove, a first permanent magnet is connected in the installation groove in a sealing and sliding mode, and a scraper matched with the circulation groove is fixedly connected to one end, far away from the installation groove, of the first permanent magnet;

the base is symmetrically provided with a second permanent magnet and a third permanent magnet which correspond to the first permanent magnet, the magnetic poles of the first permanent magnet corresponding to the second permanent magnet are the same, the magnetic poles of the first permanent magnet corresponding to the third permanent magnet are opposite, the base is provided with a slag discharging groove corresponding to the third permanent magnet, and the slag discharging groove is communicated with the placing groove.

Preferably, the lower side of the material placing groove is communicated with an external feeding mechanism through a communicating pipe, and an opening at the lower end of the slag discharging groove is communicated with an external slag receiving mechanism.

Preferably, the lower end face of the rotating disc is connected with an injection molding injection pipe matched with the circulation groove in a sealing and sliding mode, and the position of the injection molding injection pipe corresponds to the second permanent magnet.

Compared with the prior art, the invention has the beneficial effects that: through setting up one-way bearing, threaded rod, carousel, circulation groove, reset spring and a plurality of permanent magnetism pieces of mutually supporting, to the reset spring energy storage when beginning to mould plastics, reset spring drive carousel after the end of moulding plastics rotates to the circulation groove position that to the position change and in time clean the slagging-off to the circulation groove after using, and then prevent that the circulation groove from blockking up, both improved the life of equipment and can improve injection moulding product's production quality, and degree of automation is high.

Drawings

FIG. 1 is a schematic structural diagram of a periodically switched anti-clogging injection mold according to the present invention;

FIG. 2 is a schematic view of a part of the internal structure of a placement groove in the periodically-switched anti-clogging injection mold according to the present invention;

fig. 3 is an enlarged view of a point a in fig. 1.

In the figure: the device comprises a base 1, a material placing groove 2, a piston plate 3, a driving device 4, a placing groove 5, a rotary table 6, a circulation groove 7, a mounting groove 8, a first permanent magnet 9, a scraper 10, a second permanent magnet 11, a third permanent magnet 12, a slag discharging groove 13, a control groove 14, a one-way bearing 15, a threaded rod 16, a return spring 17 and a fourth permanent magnet 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a periodic switching type anti-clogging injection mold comprises a base 1, a material placing groove 2 is arranged in the base 1, a piston plate 3 is connected in the material placing groove 2 in a sealing and sliding manner, a driving device 4 is arranged on the upper end face of the base 1, the output end of the driving device 4 extends into the material placing groove 2 and is fixedly connected with the piston plate 3, the driving device 4 is a telescopic cylinder, the driving device 4 drives the piston plate 3 to reciprocate up and down in the material placing groove 2 so as to extrude the raw materials in the material placing groove 2, a placing groove 5 is also arranged in the base 1, the placing groove 5 is positioned below the material placing groove 2, a turntable 6 is connected in the placing groove 5 in a sealing and rotating manner, the top wall and the inner bottom wall in the placing groove 5 are communicated with the bottom wall in the material placing groove 2 and the lower end face of the base 1 through holes, a control groove 14 is coaxially arranged in the middle of the turntable 6, a threaded groove is formed in the inner wall of the one-way bearing 15, a threaded rod 16 is elastically connected to the top wall of the control groove 14 through a return spring 17, the threaded rod 16 is in threaded connection with the inner wall of the one-way bearing 15, fourth permanent magnets 18 are arranged on the opposite sides of the threaded rod 16 and the piston plate 3, the magnetic poles of the opposite sides of the two fourth permanent magnets 18 are the same, and anti-blocking mechanisms are symmetrically arranged on the rotary table 6;

the anti-blocking mechanism comprises a circulation groove 7 vertically formed in the rotary disc 6, openings at the upper end and the lower end of the circulation groove 7 on the right side are communicated with corresponding through holes, openings at the upper end and the lower end of the circulation groove 7 on the left side are blocked by groove walls of the placement groove 5, an installation groove 8 is horizontally formed in the groove wall of the circulation groove 7, a first permanent magnet 9 is hermetically and slidably connected in the installation groove 8, a scraper 10 matched with the circulation groove 7 is fixedly connected to one end, away from the installation groove 8, of the first permanent magnet 9, and a magnetism isolating sleeve is arranged in the installation groove 8, so that magnetic interference between the first permanent magnet 9 and a fourth permanent magnet 18 is isolated;

a second permanent magnet 11 and a third permanent magnet 12 corresponding to the first permanent magnet 9 are symmetrically installed on the base 1, the magnetic poles of the opposite sides of the first permanent magnet 9 and the second permanent magnet 11 corresponding to the positions are the same, the magnetic poles of the opposite sides of the first permanent magnet 9 and the third permanent magnet 12 corresponding to the positions are opposite, a slag discharging groove 13 corresponding to the third permanent magnet 12 is formed in the base 1, and the slag discharging groove 13 is communicated with the placing groove 5.

In the invention, the lower side of the material placing groove 2 is communicated with an external feeding mechanism through a communicating pipe, the lower end opening of the slag discharging groove 13 is communicated with an external slag receiving mechanism, the lower end surface of the rotary table 6 is hermetically and slidably connected with an injection molding injection pipe matched with the circulation groove 7, and the position of the injection molding injection pipe corresponds to the second permanent magnet 11.

The invention can be illustrated by the following operating modes: at the beginning, the lower end notch of the right circulation groove 7 is communicated with the injection pipe, at the moment, the two first permanent magnets 9 are respectively opposite to the second permanent magnet 11 and the third permanent magnet 12, the two scraping plates 10 are both positioned at the left limit position, and the piston plate 3 is positioned at the upper limit position;

when the injection molding machine works, an external feeding mechanism leads molten raw materials to the lower side of a material placing groove 2 through a communicating pipe, then a driving device 4 is started, the driving device 4 drives a piston plate 3 to move downwards so as to extrude the raw materials in the material placing groove 2, the raw materials in the material placing groove 2 enter an injection molding injection pipe through a circulation groove 7 on the right side to perform an injection molding process, meanwhile, along with the downward movement of the piston plate 3, under the action of magnetic repulsion force between two fourth permanent magnets 18, a threaded rod 16 moves downwards in a control groove 14 and stretches a reset spring 17, the threaded rod 16 drives a one-way bearing 15 to rotate, and a rotating disc 6 is kept still under the action of the one-way bearing 15;

when the driving device 4 drives the piston plate 3 to move upwards to reset after the injection molding is finished, the threaded rod 16 moves upwards to reset under the action of the elastic force of the reset spring 17, the one-way bearing 15 drives the rotary table 6 to rotate, the positions of the left and right circulation grooves 7 are switched, the two first permanent magnets 9 drive the scraping plates 10 connected with the first permanent magnets to slide in the corresponding circulation grooves 7 under the magnetic action of the second permanent magnets 11 and the third permanent magnets 12, the scraping plates 10 in the circulation grooves 7 on the right side clean and scrape raw materials in the raw materials and extrude the raw materials into the slag discharge grooves 13, the clean circulation grooves 7 on the left side are communicated with the injection molding injection pipe relatively, and the operation is repeated in such a way, the injection molding pipe is automatically switched to be clean and cleaned and deslagged after each injection molding, so that the blockage of the injection molding pipe is avoided, the service life of the injection molding pipe is prolonged, and the production quality of injection, and the automation degree is high.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.