CN215550521U - Mold with hot runner system - Google Patents

Abstract

The utility model discloses a mould with a hot runner system, which comprises: the runner is irritated the mouth from the cope match-plate pattern, the hot runner board, the backing plate, the mouth is irritated to the runner, the hot runner board, A board, B board, lower mould foot and lower bolster, the mouth is irritated from the cope match-plate pattern, the hot runner board, it corresponds the setting with front mould benevolence to pass through A board in proper order, be provided with hot runner system between cope match-plate pattern and the A board, hot runner system includes the hot runner, the needle push pedal, two pull rods, guide block mechanism and terminal box, the hydro-cylinder, the output of hydro-cylinder is connected with two pull rods, two pull rods set up respectively in the left and right both sides of needle push pedal, guide block mechanism includes first guide block and second guide block, first guide block is fixed in on the pull rod, the side of needle push pedal is fixed in to the second guide block, the hydro-cylinder can drive two pull rod left and right horizontal motion in order to drive the needle push pedal up-and down motion. The utility model adopts an oil cylinder advance and retreat mode to enable the valve needle push plate to move up and down, ensures the normal opening and closing of the mould and has stable mechanical performance.

Description

Mold with hot runner system

Technical Field

The utility model relates to the technical field of processing and manufacturing of molds, in particular to a mold with a hot runner system.

Background

Hot runner systems generally consist of a hot nozzle, a manifold, a temperature control box, fittings, etc., and the hot nozzle generally includes two types: open hot nozzles and needle valve hot nozzles, because the form of the hot nozzle directly determines the selection of the hot runner system and the manufacture of the mold, the hot runner system is divided into the open hot runner system and the needle valve hot runner system correspondingly.

The hot runner is adopted to shorten the molding period of the finished piece, the finished piece can be ejected out in time after molding and curing because of no limitation of cooling time of a runner system, and no production waste is generated because no cold runner is arranged in a pure hot runner mold, which is particularly significant for application items with expensive plastics.

For a mold with a hot runner system, how to better utilize the mold space, arrange a plurality of points, increase the number of cavities of the product, and ensure the dimensional accuracy of the product is also a challenge for the mold structure.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a mould with a hot runner system, wherein a valve needle push plate moves up and down by adopting an oil cylinder advance and retreat mode, and sixteen product mould cavities are arranged in a multi-point manner, so that the space of the mould is better utilized, the space of the product arrangement is more saved than that of a common hot runner, and the use space of the mould is optimized.

In order to solve the technical problems, the utility model adopts a technical scheme that: a mold with a hot runner system, comprising: the injection molding machine comprises an upper template, an upper template foot, a backing plate, a flow channel filling nozzle, a hot runner plate, an A plate, a B plate, a lower template and a lower template, wherein a front mold core and a rear mold core are correspondingly arranged between the A plate and the B plate, the flow channel filling nozzle is arranged from the upper template and the hot runner plate sequentially through the A plate and the front mold core, a hot runner system is arranged between the upper template and the A plate, the hot runner system comprises a hot runner, a valve needle push plate, two pull rods, a guide block mechanism, a junction box and an oil cylinder, the junction box and the oil cylinder are arranged on the side face of an upper mold corner, the output end of the oil cylinder is connected with the two pull rods, the two pull rods are respectively arranged on the left side and the right side of the valve needle push plate, the guide block mechanism is provided with four groups and is arranged in a pairwise symmetry manner, the guide block mechanism comprises a first guide block and a second guide block, the first guide block is fixed on the pull rods, and the side edge of the valve needle push plate is fixed on the second guide block, the oil cylinder can drive the two pull rods to horizontally move left and right to enable the first guide block to be in contact with the second guide block so as to drive the valve needle push plate to move up and down.

In a preferred embodiment of the present invention, the first guide block and the second guide block have triangular convex slopes.

In a preferred embodiment of the utility model, the pull rod drives the first guide block to slide along the inclined surface of the second guide block so as to drive the valve needle push plate to move up and down.

In a preferred embodiment of the utility model, the mold further comprises sixteen mold cavities, and sixteen mold cavities are divided into two groups and symmetrically arranged left and right.

In a preferred embodiment of the present invention, a plurality of heat flow channels are disposed on the heat flow channel plate.

The utility model has the beneficial effects that: the utility model discloses a take mould of hot runner system adopts the hydro-cylinder advance and retreat mode to make the needle push pedal do the up-and-down motion, and the injection molding machine is in the shaping process, and when the needle push pedal drove the needle and withdraws back, the plastic can get into the mould die cavity, the shaping product, and after the product shaping was accomplished, when unnecessary plastic was filled, the needle push pedal drove the needle and moves down and seal the glue, made the product shaping more smooth and easy, can not appear lacking glue, not fill scheduling problem in the production process; sixteen product mold cavities are arranged in a multi-point mode, the space of the mold is better utilized, the space of the product is saved compared with that of an ordinary hot runner in the arrangement mode, and the use space of the mold is optimized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic view of the overall structure of a mold with a hot runner system according to the present invention;

FIG. 2 is a cross-sectional view of a mold with a hot runner system of the present invention;

FIG. 3 is a schematic view of the distribution of the mold cavities in the present invention;

FIG. 4 is a schematic structural view of a hot runner system of the present invention;

FIG. 5 is a schematic view of the hot runner system of the present invention with the oil cylinder retracted;

fig. 6 is an enlarged view of the guide block mechanism in fig. 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a mold with a hot runner system according to the present invention includes: the injection molding machine comprises an upper template 1, an upper template leg 2, a backing plate 3, a runner filling nozzle 4, a hot runner plate 5, an A plate 6, a B plate 7, a lower template leg 8 and a lower template 9, wherein a front mold core and a rear mold core (not shown in the figure) are correspondingly arranged between the A plate and the B plate, the runner filling nozzle is arranged from the upper template, the hot runner plate and the front mold core sequentially through the A plate, a hot runner system is arranged between the upper template and the A plate, the hot runner system comprises a hot runner 10, a valve needle push plate 12, two pull rods 13, a guide block mechanism 11, a junction box 14 and an oil cylinder 15, the junction box and the oil cylinder are arranged on the side surface of an upper mold corner, the output end of the oil cylinder is connected with the two pull rods, the two pull rods are respectively arranged on the left side and the right side of the valve needle push plate, the guide block mechanism is provided with four groups and is symmetrically arranged, the guide block mechanism comprises a first guide block 111 and a second guide block 112, the first guide block is locked on the pull rods through screws, the second guide block is fixed on the side edge of the valve needle push plate, and when the oil cylinder drives the two pull rods to move horizontally left and right, the first guide block is in contact with the second guide block to drive the valve needle push plate to move up and down.

Specifically, the first guide block and the second guide block are provided with triangular convex inclined planes which can be matched, when the oil cylinder is pushed, the pull rod is driven to move rightwards, and the pull rod drives the first guide block to slide along the inclined plane of the second guide block so as to drive the valve needle push plate to move downwards; when the oil cylinder retracts, the pull rod is driven to move left, and the pull rod drives the first guide block to slide back along the inclined surface of the second guide block so as to drive the valve needle push plate to move; run through on the needle push pedal and be provided with needle 18, the injection molding machine is in the forming process, and when the needle push pedal drove the needle and rollback, the plastic can get into the mould cavity, and the shaping product, when the product shaping is accomplished, when not needing unnecessary plastic to fill, the needle push pedal drove the needle downstream and seals the glue for the product shaping is more smooth and easy.

Referring to fig. 2, the mold further includes sixteen mold cavities 16, sixteen mold cavities are divided into two groups and symmetrically arranged left and right, sixteen heat flow channels 10 corresponding to the products are arranged on the heat flow channel plate, and the sixteen product mold cavities are arranged in a multi-point manner, so that the space of the mold is better utilized, the production efficiency is improved, and the production cost is properly reduced.

The mold with the hot runner system has the advantages that:

(1) the valve needle push plate moves up and down by adopting an oil cylinder advance and retreat mode, when the valve needle push plate drives the valve needle to retreat in the molding process of the injection molding machine, plastic can enter a mold cavity to mold a product, and when the product is molded and does not need to be filled with redundant plastic, the valve needle push plate drives the valve needle to move down to seal the plastic, so that the product is molded more smoothly, and the problems of glue shortage, non-filling and the like can not occur in the production process;

(2) sixteen product mold cavities are arranged in a multi-point mode, the space of the mold is better utilized, the space of the product is saved compared with that of an ordinary hot runner in the arrangement mode, and the use space of the mold is optimized.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. A mold with a hot runner system, comprising: the hot runner injection mold is characterized in that a hot runner system is arranged between the upper mold plate and the plate A, the hot runner system comprises a hot runner, a valve needle push plate, two pull rods, a guide block mechanism, a junction box and an oil cylinder, the junction box and the oil cylinder are arranged on the side face of an upper mold corner, the output end of the oil cylinder is connected with the two pull rods, the two pull rods are respectively arranged on the left side and the right side of the valve needle push plate, the guide block mechanism is provided with four groups and is arranged in a pairwise symmetrical mode, the guide block mechanism comprises a first guide block and a second guide block, the first guide block is fixed on the pull rods, and the second guide block is fixed on the side edge of the valve needle push plate, the oil cylinder can drive the two pull rods to horizontally move left and right to enable the first guide block to be in contact with the second guide block so as to drive the valve needle push plate to move up and down.

2. The mold with hot runner system of claim 1, wherein the first guide block and the second guide block have triangular convex slopes.

3. The mold with the hot runner system according to claim 2, wherein the pull rod drives the first guide block to slide along the inclined surface of the second guide block so as to drive the valve needle push plate to move up and down.

4. The mold of claim 1, further comprising sixteen mold cavities, wherein sixteen mold cavities are divided into two groups and symmetrically arranged left and right.

5. The mold with hot runner system according to claim 4, wherein the hot runner plate has a plurality of hot runner channels formed thereon.

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