CN216423327U

CN216423327U - Automatic runner structure of cutting in mould of runner and product separation effectively

Info

Publication number: CN216423327U
Application number: CN202122987381.5U
Authority: CN
Inventors: 周期峰
Original assignee: Youcheng Machinery Tianjin Co ltd
Current assignee: Youcheng Machinery Tianjin Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-03
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses an automatic runner structure of cutting in mould that runner and product separated effectively, including last mould and bed die, form the chamber of moulding plastics between the bottom of going up the mould and the top of bed die, the top intercommunication of going up the mould has the runner of moulding plastics, and the runner of moulding plastics runs through the mould and extends to the intracavity of moulding plastics, and the inside of going up the mould and the one side that is located the runner of moulding plastics are provided with prevents stifled subassembly, and the inside of going up the mould and the one side that is located the runner of moulding plastics are provided with cutting assembly, prevent stifled subassembly including seting up in the inside movable chamber of last mould, the utility model relates to an injection mold technical field. This runner and product separate effectively automatic runner structure of cutting in mould, sealed piece will mould plastics the runner under elastic component's effect and keep apart with movable chamber and installation cavity, prevent to mould plastics the congeals material and get into the installation cavity of cutting knife activity, avoid the cutting knife motion to be obstructed, make the cutting knife can effectively cut the runner of moulding plastics, improve the finished product quality of the product of moulding plastics.

Description

Automatic runner structure of cutting in mould of runner and product separation effectively

Technical Field

The utility model relates to an injection mold technical field specifically is an automatic runner structure of cutting in mould of runner and product separation effectively.

Background

The modern injection molding production process has higher and higher requirements on production efficiency and product appearance, namely, the production efficiency is improved while the requirement on the product appearance quality is ensured. Therefore, the mold is required to be capable of automatic production, namely, the product and the runner are automatically separated when the mold is opened and ejected. In the prior art, three modes of a submarine gate, a spot gate and a hot runner direct point on a product are adopted to achieve the purpose of mold automatic production, but a plurality of products cannot use the three gate modes due to the requirements of structure and appearance, so that the requirement of automatic production cannot be met, and only a side gate glue feeding mode can be adopted. The product and the runner can not be separated when the side gate enters the glue and the die sinking is ejected, the runner and the product are connected through the gate, secondary processing is carried out to separate the product from the runner, a worker needs to trim the gate, the labor intensity is high, the efficiency can be greatly reduced, the product and the runner separation part can have the phenomenon of residue or glue shortage in the secondary processing process, the appearance quality of the product which is not attractive in gate trimming can be influenced, and the product rejection rate can be improved. In order to improve the production efficiency, reduce the production cost and improve the appearance quality of products, the automatic gate-breaking mold structure for in-mold hot cutting is provided to solve the problems

According to patent grant publication No. CN 206840635U automatic cut runner structure in mould, belong to mould technical field. It has solved the lower problem of current mould drawing of patterns efficiency. This automatic runner structure of cutting in mould, including last mould and bed die, it forms the shaping chamber to go up between mould and the bed die, be equipped with the runner of moulding plastics that enables the molten plastics to flow into the shaping intracavity in the shaping intracavity, set up the through-hole that a plurality of and shaping chamber are linked together on the bed die, sliding connection has the cutter in the through-hole, the cutter sets up the one side at the runner of moulding plastics, be connected with the cylinder on the bed die, the piston rod has on the cylinder, the piston rod is connected with the cutter, the cylinder can drive the piston rod and drive the cutter and move to the cutter along the through-hole pore wall and cut off shaping chamber and the runner of moulding plastics. This automatic runner structure of cutting in mould can improve the production efficiency of mould. Above-mentioned utility model discloses in be linked together with the runner of moulding plastics for the through-hole of cutter motion direction, mould plastics and congeal the material and get into the through-hole easily, lead to the cutter motion to be obstructed, can't effectively cut the runner, influence the finished product quality of pouring.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an automatic runner structure of cutting in mould that runner and product separated effectively has solved above-mentioned utility model in for the through-hole of cutter motion direction and the runner of moulding plastics are linked together, mould plastics and congeal the material and get into the through-hole easily, lead to the cutter motion to be obstructed, can't effectively cut the runner, influence the finished product quality's of pouring problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an in-mold automatic sprue cutting structure with effectively separated sprue and product comprises an upper mold and a lower mold, wherein an injection molding cavity is formed between the bottom of the upper mold and the top of the lower mold, the top of the upper mold is communicated with an injection molding sprue, the injection molding sprue penetrates through the upper mold and extends into the injection molding cavity, an anti-blocking assembly is arranged inside the upper mold and on one side of the injection molding sprue, a cutting assembly is arranged inside the upper mold and on one side of the injection molding sprue, the anti-blocking assembly comprises a movable cavity arranged inside the upper mold, the bottom of the movable cavity is communicated with the injection molding sprue, a sealing block is slidably connected to the bottom between two sides of the inner wall of the movable cavity, a sliding rail is fixedly connected to the top of the sealing block, a sliding block is slidably connected to the surface of the sliding rail, an elastic assembly is fixedly connected to the top of the sliding block, a threaded rod is rotatably connected to the top of the elastic assembly, one end of the threaded rod, which is far away from the elastic component, penetrates through the movable cavity and the upper die and extends to the outside of the upper die.

Preferably, the threaded rod is in threaded connection with the upper die, and the top end of the threaded rod is fixedly connected with an adjusting hand wheel.

Preferably, the cutting assembly comprises a mounting cavity, one side of the mounting cavity is communicated with the movable cavity and the injection molding sprue, a telescopic rod is fixedly connected to one side of the inner wall of the mounting cavity, and a cutting knife is fixedly connected to the output end of the telescopic rod.

Preferably, the elastic component comprises a sliding sleeve, the inner wall of the sliding sleeve is connected with a sliding rod in a sliding mode, and one end, far away from the sliding sleeve, of the sliding rod is fixedly connected with the sliding block.

Preferably, the top end of the sliding sleeve is fixedly connected with a limiting plate, the top of the limiting plate is rotatably connected with the bottom end of the threaded rod, the surface of the sliding rod is fixedly connected with a limiting ring, and a spring is fixedly connected between the limiting plate and the limiting ring.

Preferably, the top of the lower die is provided with a guide hole, and the bottom of the upper die is fixedly connected with a guide rod matched with the guide hole.

Advantageous effects

The utility model provides an automatic runner structure of cutting in mould of runner and product separation effectively. Compared with the prior art, the method has the following beneficial effects:

(1) the in-mold automatic sprue cutting structure with the sprue effectively separated from the product comprises an injection molding cavity formed between the bottom of an upper mold and the top of a lower mold, the top of the upper mold is communicated with an injection molding sprue which penetrates through the upper mold and extends into the injection molding cavity, an anti-blocking component is arranged inside the upper mold and on one side of the injection molding sprue, a cutting component is arranged inside the upper mold and on one side of the injection molding sprue, the anti-blocking component comprises a movable cavity arranged inside the upper mold, the bottom of the movable cavity is communicated with the injection molding sprue, a sealing block is connected between the two sides of the inner wall of the movable cavity in a sliding manner, a sliding rail is fixedly connected to the top of the sealing block, a sliding block is connected to the surface of the sliding rail in a sliding manner, an elastic component is fixedly connected to the top of the sliding block, a threaded rod is rotatably connected to the top of the elastic component, one end, far away from the threaded rod, penetrates through the movable cavity and the upper mold and extends to the outside of the upper mold, the sprue will be moulded plastics under elastic component's effect to sealed piece and keeps apart with movable chamber and installation cavity, prevents to mould plastics and congeals the installation cavity that the material got into the cutting knife activity, avoids the cutting knife motion to be obstructed, makes the cutting knife can effectively cut the sprue of moulding plastics, improves the finished product quality of the product of moulding plastics.

(2) This runner and product separation effectively mould internal automatic cutout runner structure, include the sliding sleeve through elastic component, the inner wall sliding connection of sliding sleeve has the slide bar, the slide bar is kept away from the one end and the slider fixed connection of sliding sleeve, the top fixedly connected with limiting plate of sliding sleeve, the top of limiting plate is rotated with the bottom of threaded rod and is connected, the fixed surface of slide bar is connected with the spacing ring, fixedly connected with spring between limiting plate and the spacing ring, the pretightning force of spring can be adjusted through the threaded rod, guarantee that the sealed block will mould plastics the runner and the reliability that the movable chamber and installation cavity keep apart.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of the substrate of FIG. 2;

fig. 4 is a partial enlarged view of the utility model at B in fig. 2;

fig. 5 is a perspective view of the elastic assembly of the present invention.

In the figure: 1 upper die, 2 lower die, 3 injection molding cavity, 4 injection molding sprue, 5 anti-blocking component, 51 movable cavity, 52 sealing block, 53 sliding block, 54 sliding rail, 55 elastic component, 551 sliding sleeve, 552 sliding rod, 553 limiting plate, 554 limiting ring, 555 spring, 56 threaded rod, 57 adjusting hand wheel, 6 cutting component, 61 mounting cavity, 62 telescopic rod, 63 cutting knife, 7 guiding hole and 8 guiding rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an in-mold automatic gate cutting structure with effectively separated gates and products comprises an upper mold 1 and a lower mold 2, wherein the top of the upper mold 1 is connected with an external driving mechanism through a driving rod, the top of the lower mold 2 is provided with a guide hole 7, the bottom of the upper mold 1 is fixedly connected with a guide rod 8 matched with the guide hole 7, an injection molding cavity 3 is formed between the bottom of the upper mold 1 and the top of the lower mold 2, the top of the upper mold 1 is communicated with an injection molding gate 4, the injection molding gate 4 penetrates through the upper mold 1 and extends into the injection molding cavity 3, an anti-blocking component 5 is arranged inside the upper mold 1 and on one side of the injection molding gate 4, a cutting component 6 is arranged inside the upper mold 1 and on one side of the injection molding gate 4, the cutting component 6 comprises a mounting cavity 61, one side of the mounting cavity 61 is communicated with a movable cavity 51 and the injection molding gate 4, one side of the inner wall of the mounting cavity 61 is fixedly connected with a telescopic rod 62, the telescopic rod 62 is a hydraulic telescopic rod and is communicated with an external hydraulic system through a hydraulic pipe, the output end of the telescopic rod 62 is fixedly connected with a cutting knife 63, the anti-blocking component 5 comprises a movable cavity 51 arranged inside the upper die 1, the bottom of the movable cavity 51 is communicated with the injection molding sprue 4, the bottom between two sides of the inner wall of the movable cavity 51 is slidably connected with a sealing block 52, the top of the sealing block 52 is fixedly connected with a slide rail 54, the surface of the slide rail 54 is slidably connected with a slide block 53, the top of the slide block 53 is fixedly connected with an elastic component 55, the elastic component 55 comprises a slide sleeve 551, the inner wall of the slide sleeve 551 is slidably connected with a slide rod 552, one end of the slide rod 552 far away from the slide sleeve 551 is fixedly connected with the slide block 53, the top of the slide sleeve is fixedly connected with a limit plate 553, the top of the limit plate 553 is rotatably connected with the bottom end of the threaded rod 56, the surface of the slide rod 552 is fixedly connected with a limit ring 553, a spring 555 is fixedly connected between the limit plate and the limit ring 554, the top of elastic component 55 rotates and is connected with threaded rod 56, and the one end that elastic component 55 was kept away from to threaded rod 56 runs through activity chamber 51 and last mould 1 and extends to the outside of last mould 1, threaded rod 56 and last mould 1 threaded connection, the top fixedly connected with adjusting hand wheel 57 of threaded rod 56.

When in use, the injection molding raw material is injected into the injection molding cavity 3 through the injection molding sprue 4, after the injection molding is finished and the injection molding raw material is cooled for a period of time, the demoulding operation is carried out, before the demoulding operation, the telescopic rod 62 is opened, the telescopic rod 62 works to push the cutting knife 63 to move, the cutting knife 63 moves, the sealing block 52 is pushed to slide along the inner wall of the movable cavity 51, the injection molding sprue 4, the movable cavity 51 and the mounting cavity 61 are communicated, the cutting knife 63 continues to move, cutting the injection molding raw material in the injection molding gate 4, after cutting, resetting the cutting knife 63 under the drive of the telescopic rod 62, resetting the sealing block 52 under the action of the elastic component 55, isolating the injection molding gate 4 from the movable cavity 51 and the installation cavity 62 again, rotating the adjusting hand wheel 57 to drive the threaded rod 56 to push the limiting plate 553 to move so as to change the pretightening force of the spring 555, and ensuring that the injection molding gate 4 is effectively isolated from the movable cavity 51 and the installation cavity 62 by the sealing block 52.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic runner structure of cutting in mould that runner and product separated effectively, includes mould (1) and bed die (2), its characterized in that: an injection molding cavity (3) is formed between the bottom of the upper mold (1) and the top of the lower mold (2), the top of the upper mold (1) is communicated with an injection molding sprue (4), the injection molding sprue (4) penetrates through the upper mold (1) and extends into the injection molding cavity (3), an anti-blocking component (5) is arranged inside the upper mold (1) and on one side of the injection molding sprue (4), and a cutting component (6) is arranged inside the upper mold (1) and on one side of the injection molding sprue (4);

prevent stifled subassembly (5) including offering in the inside movable chamber (51) of last mould (1), the bottom and the runner (4) of moulding plastics of movable chamber (51) are linked together, bottom sliding connection between movable chamber (51) inner wall both sides has sealed piece (52), the top fixedly connected with slide rail (54) of sealed piece (52), the sliding surface of slide rail (54) is connected with slider (53), the top fixed connection of slider (53) has elastic component (55), the top of elastic component (55) is rotated and is connected with threaded rod (56), the one end that elastic component (55) were kept away from in threaded rod (56) runs through movable chamber (51) and last mould (1) and extends to the outside of mould (1).

2. An in-mold gate automatic cutting structure for effectively separating a gate from a product according to claim 1, wherein: the threaded rod (56) is in threaded connection with the upper die (1), and the top end of the threaded rod (56) is fixedly connected with an adjusting hand wheel (57).

3. An in-mold automatic gate cutting structure for effectively separating a gate from a product according to claim 1, wherein: cutting subassembly (6) include installation cavity (61), one side and the activity chamber (51) of installation cavity (61) are linked together with runner (4) of moulding plastics, one side fixedly connected with telescopic link (62) of installation cavity (61) inner wall, the output fixedly connected with cutting knife (63) of telescopic link (62).

4. An in-mold automatic gate cutting structure for effectively separating a gate from a product according to claim 1, wherein: the elastic component (55) comprises a sliding sleeve (551), the inner wall of the sliding sleeve (551) is connected with a sliding rod (552) in a sliding mode, and one end, far away from the sliding sleeve (551), of the sliding rod (552) is fixedly connected with the sliding block (53).

5. An in-mold automatic gate cutting structure for effectively separating a gate from a product according to claim 4, wherein: the top end of the sliding sleeve (551) is fixedly connected with a limiting plate (553), the top of the limiting plate (553) is rotatably connected with the bottom end of the threaded rod (56), the surface of the sliding rod (552) is fixedly connected with a limiting ring (554), and a spring (555) is fixedly connected between the limiting plate (553) and the limiting ring (554).

6. An in-mold automatic gate cutting structure for effectively separating a gate from a product according to claim 1, wherein: the top of the lower die (2) is provided with a guide hole (7), and the bottom of the upper die (1) is fixedly connected with a guide rod (8) matched with the guide hole (7).