CN209971376U

CN209971376U - Internal thread automatic demoulding hot runner injection mold

Info

Publication number: CN209971376U
Application number: CN201920555550.8U
Authority: CN
Inventors: 杨正军
Original assignee: Prosperous Standing In Shenzhen Raises Accurate Science And Technology Ltd
Current assignee: Prosperous Standing In Shenzhen Raises Accurate Science And Technology Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-01-21
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses an internal thread automatic demoulding hot runner injection mould, which comprises a movable mould, a fixed mould, a pouring assembly and a demoulding assembly, wherein the inner wall of one side of the fixed mould and the movable mould is provided with a cavity, one side of the fixed mould is fixedly provided with a fixed plate, the inner wall of the fixed plate is provided with a T-shaped hole, the pouring assembly is fixedly connected with the inner wall of the T-shaped hole, the pouring assembly penetrates through the fixed mould and is fixedly connected with the cavity, one side of the movable mould is fixedly provided with a mounting shell, the demoulding assembly is positioned in the mounting shell, and the demoulding assembly is movably connected with the movable mould, the utility model aims at the plastic part with internal thread to carry out injection moulding, the plastic part is rotationally demoulded through a demoulding rod, after the demoulding rod completely demoulds the plastic part, the symmetrically arranged ejector rods completely eject the plastic part out, a reset spring is, raw materials are saved, the molding time of the plastic part is shortened, and the automation of the plastic part production is realized.

Description

Internal thread automatic demoulding hot runner injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is an internal thread automatic demoulding hot runner injection mold.

Background

The hot runner mold is a mold which utilizes a heating device to enable melt in a runner not to solidify all the time, has a shorter forming period than that of the traditional mold, saves raw materials and realizes automation, internal threads on a plastic part are formed by adopting a threaded core, and due to the particularity of the threads, the thread stripping methods are different, the internal thread plastic part stripping method generally adopts three modes of forced stripping, manual stripping and automatic stripping, the forced stripping has higher requirements on the material performance of the plastic part, the cost is high, and the large-scale production is not facilitated; the thread core is made into a movable insert through manual demoulding, and manual demoulding is carried out outside the mould, so that although the mould is simple in structure, the production efficiency is low, the labor intensity is high, and automatic operation cannot be realized; the conventional automatic demoulding of an internal thread product is generally thread rotary demoulding, a plastic part is taken out of a cavity in the rotary demoulding process, but due to factors such as the appearance of the plastic part product, the plastic part cannot be taken out of the cavity in the rotary demoulding process, the plastic part needs to be taken out manually or by other methods, so that the time for the plastic part to be separated from the cavity is increased, the production period of the plastic part is longer, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an internal thread automatic demoulding hot runner injection mold to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an internal thread automatic demoulding hot runner injection mold, includes movable mould, cover half, pouring subassembly and drawing of patterns subassembly, cover half and movable mould one side inner wall all open there is the die cavity, cover half one side fixed mounting has the fixed plate, and the fixed plate inner wall is opened there is T type hole, the inner wall fixed connection in pouring subassembly and T type hole, and the pouring subassembly runs through cover half and die cavity fixed connection, movable mould one side fixed mounting has the installation shell, inside drawing of patterns subassembly is located the installation shell, and drawing of patterns subassembly and movable mould swing joint.

Preferably, the demolding assembly comprises two demolding rods, an ejector rod, a push plate, a reset spring, a fixed rod, two guide pillars and a guide sleeve, the fixed rods are symmetrically fixed on the inner wall of the installation shell, the push plate is sleeved on the outer side of the fixed rod and is in sliding connection with the fixed rod, an external thread is arranged on the outer side of one end of the demolding rod, the other end of the demolding rod sequentially penetrates through the movable mold, the installation shell and the push plate, the ejector rods are symmetrically arranged along the demolding rod, one end of each ejector rod is fixedly connected with one side of the push plate, the ejector rods sequentially penetrate through the installation shell and the movable mold and are in sliding connection with the movable mold, the reset springs are arranged in two numbers, the two reset springs are respectively sleeved on the outer sides of the two fixed rods, two ends of each reset spring are respectively fixedly connected with the inner wall of the installation shell and one side of the push plate, one end of the guide sleeve is fixed on one side of the fixing plate, and the guide sleeve is connected with the guide pillar in a sliding mode.

Preferably, the pouring assembly comprises a runner plate and a pouring gate, the outer side of the runner plate is fixedly connected with the outer wall of the T-shaped hole, a channel is formed in the runner plate, and two ends of the channel are fixedly connected with the fixed die and the pouring gate respectively.

Preferably, one end of the ejector rod is fixedly provided with an ejector plate, the inner wall of the movable mold is provided with a limiting groove, and the ejector plate is connected with the limiting groove in a sliding manner.

Preferably, the side wall of the cavity is inclined at a certain angle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses moulding plastics to having the internal screw thread to mould plastics, carrying out the rotatory drawing of patterns to moulding through the knockout pin, after the knockout pin is to moulding the complete drawing of patterns, the ejector pin that the symmetry set up will mould a complete ejecting, reset spring's setting, the processing that resets to the ejector pin after the drawing of patterns, the pouring subassembly adopts the hot runner to mould plastics, more save raw materials with shorten and mould a shaping time, realized moulding the automation of production.

2. The utility model discloses the ejector pin designs into the arc, and the effectual influence that has alleviateed the ejector pin to moulding the piece appearance and cause when moulding the piece by ejecting, and certain inclination has been set to the die cavity, has aspect more and has moulded a drawing of patterns.

Drawings

FIG. 1 is a schematic view of the overall structure of the mold assembly cross-section of the present invention;

fig. 2 is the overall structure die sinking section view schematic diagram of the present invention.

In the figure: 1-moving a mould; 2-fixing the mold; 3-casting the assembly; 4-a demoulding component; 5-molding the cavity; 6, fixing a plate; 7-T shaped holes; 8-mounting the shell; 9-a stripper bar; 10-a top rod; 11-a push plate; 12-a return spring; 13-a fixation rod; 14-guide posts; 15-guide sleeve; 16-a runner plate; 17-a pouring gate; 18-channels; 19-a knock-out plate; 20-limiting groove.

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. 1-2, the present invention provides a technical solution: an internal thread automatic demoulding hot runner injection mould comprises a movable mould 1, a fixed mould 2, a pouring component 3 and a demoulding component 4, wherein a cavity 5 is formed in the inner walls of one side of the fixed mould 2 and the movable mould 1, a fixed plate 6 is fixedly arranged on one side of the fixed mould 2, a T-shaped hole 7 is formed in the inner wall of the fixed plate 6, the pouring component 3 is fixedly connected with the inner wall of the T-shaped hole 7, the pouring component 3 penetrates through the fixed mould 2 and the cavity 5, an installation shell 8 is fixedly arranged on one side of the movable mould 1, the demoulding component 4 is positioned in the installation shell 8, the demoulding component 4 is movably connected with the movable mould 1, a motor is adopted to drive a demoulding rod 9 to carry out rotary demoulding on a plastic product with an internal thread, ejector rods 10 which are symmetrically arranged can better carry out demoulding treatment on products with irregular appearances, a hydraulic cylinder drives the movable mould 1 to move, so that the movable, and the hot runner is adopted for pouring, so that the molding time of the plastic part is shortened, and the automatic production is better realized.

The demoulding component 4 comprises two demoulding rods 9, two ejector rods 10, a push plate 11, a reset spring 12, a fixed rod 13, a guide pillar 14 and a guide sleeve 15, wherein the fixed rods 13 are symmetrically fixed on the inner wall of the mounting shell 8, the push plate 11 is sleeved on the outer side of the fixed rod 13 and is in sliding connection with the fixed rod 13, the outer side of one end of the demoulding rod 9 is provided with external threads, the other end of the demoulding rod 9 sequentially penetrates through the movable mould 1, the mounting shell 8 and the push plate 11, the ejector rods 10 are symmetrically arranged along the demoulding rods 9, one end of each ejector rod 10 is fixedly connected with one side of the push plate 11, the ejector rods 10 sequentially penetrate through the mounting shell 8 and the movable mould 1 and are in sliding connection with the movable mould 1, the reset springs 12 are arranged in two numbers, the two reset springs 12 are respectively sleeved on the outer sides of the two fixed rods 13, and two ends of the reset springs 12, the guide post 14 and the guide sleeve 15 are both provided with two, the guide post 14 penetrates through the mounting shell 8 and is fixedly connected with one side of the push plate 11, one end of the guide sleeve 15 is fixed on one side of the fixing plate 6, and the guide sleeve 15 is in sliding connection with the guide post 14.

The specific implementation mode is as follows: drive movable mould 1 and 2 die sinking of cover half through the pneumatic cylinder, the motor drives release bar 9 and rotates, and the 9 one end outsides of release bar set up the external screw thread, carries out the rotational demoulding to moulding then, and the die sinking in-process, guide pillar 14 and guide pin bushing 15 part, drive push pedal 11 motion, drive ejector pin 10 afterwards and ejecting to moulding, reset spring 12's setting is to moulding the back after the mould sinking product takes out, carries out the processing that resets to push pedal 11.

The pouring component 3 comprises a runner plate 16 and a pouring gate 17, the outer side of the runner plate 16 is fixedly connected with the outer wall of the T-shaped hole 7, a channel 18 is formed in the runner plate 16, two ends of the channel 18 are respectively fixedly connected with the fixed die 2 and the pouring gate 17, after the plastic part is assembled, raw materials are injected from the pouring gate 17 through an injection molding machine, the raw materials enter the cavity 5 through the channel 18 by heating the runner plate 16, and hot runner pouring is adopted, so that the consumption of the raw materials can be effectively saved, the generation of waste materials is reduced, and the production can be automated.

One end of the ejector rod 10 is fixedly provided with an ejector plate 19, the inner wall of the movable mold 1 is provided with a limiting groove 20, the ejector plate 19 is in sliding connection with the limiting groove 20, the size of the ejector plate 19 is basically consistent with that of the limiting groove 20, the ejector plate 19 can be effectively prevented from damaging the appearance of a plastic part, and raw material leakage during injection molding can be prevented.

The side wall of the cavity 5 inclines at a certain angle, so that the plastic part is more convenient to demould.

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 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 internal thread automatic demoulding hot runner injection mold, includes movable mould (1), cover half (2), pouring subassembly (3) and drawing of patterns subassembly (4), its characterized in that: cover half (2) and movable mould (1) one side inner wall all opened die cavity (5), cover half (2) one side fixed mounting has fixed plate (6), and fixed plate (6) inner wall is opened there are T type hole (7), the inner wall fixed connection of pouring subassembly (3) and T type hole (7), and pouring subassembly (3) run through cover half (2) and die cavity (5) fixed connection, movable mould (1) one side fixed mounting has installation shell (8), inside drawing of patterns subassembly (4) are located installation shell (8), and drawing of patterns subassembly (4) and movable mould (1) swing joint.

2. The internal thread automatic demolding hot runner injection mold as claimed in claim 1, wherein: the demolding component (4) comprises two demolding rods (9), ejector rods (10), a push plate (11), a reset spring (12), a fixing rod (13), a guide pillar (14) and a guide sleeve (15), the fixing rods (13) are symmetrically fixed on the inner wall of the installation shell (8), the push plate (11) is sleeved on the outer side of the fixing rod (13) and is in sliding connection with the fixing rod (13), external threads are arranged on the outer side of one end of each demolding rod (9), the other end of each demolding rod (9) sequentially penetrates through the movable mold (1), the installation shell (8) and the push plate (11), the ejector rods (10) are symmetrically arranged along the demolding rods (9), one end of each ejector rod (10) is fixedly connected with one side of the push plate (11), and each ejector rod (10) sequentially penetrates through the installation shell (8) and the movable mold (1) and is in sliding connection with the movable mold (1), the two reset springs (12) are arranged and are respectively sleeved on the outer sides of the two fixing rods (13), the two ends of each reset spring (12) are respectively fixedly connected with the inner wall of the mounting shell (8) and one side of the push plate (11), the guide pillar (14) and the guide sleeve (15) are respectively arranged and are fixedly connected with one side of the mounting shell (8) and one side of the push plate (11) in a penetrating mode, one end of the guide sleeve (15) is fixed on one side of the fixing plate (6), and the guide sleeve (15) is in sliding connection with the guide pillar (14).

3. The internal thread automatic demolding hot runner injection mold as claimed in claim 1, wherein: the pouring assembly (3) comprises a runner plate (16) and a pouring gate (17), the outer side of the runner plate (16) is fixedly connected with the outer wall of the T-shaped hole (7), a channel (18) is formed in the runner plate (16), and two ends of the channel (18) are fixedly connected with the fixed die (2) and the pouring gate (17) respectively.

4. The internal thread automatic demolding hot runner injection mold as claimed in claim 2, wherein: one end of the ejector rod (10) is fixedly provided with an ejector plate (19), the inner wall of the movable mold (1) is provided with a limiting groove (20), and the ejector plate (19) is in sliding connection with the limiting groove (20).

5. The internal thread automatic demolding hot runner injection mold as claimed in claim 1, wherein: the side wall of the cavity (5) is inclined at a certain angle.