CN210415425U - Mould needle controller - Google Patents

Abstract

The embodiment of the utility model discloses mould needle controller relates to the injection moulding process technology field, the needle controller includes the controller body and sets up the control circuit inside the controller body, control circuit includes a plurality of relays, solenoid valve and control switch, a plurality of relays include first relay, second relay, third relay, fourth relay and fifth relay, first relay links to each other with second relay and third relay, fourth relay and fifth relay link to each other, control switch includes knob switch and point-action switch, the solenoid valve is installed on the control circuit. The embodiment of the utility model provides a can solve and can not control the needle in a flexible way among the current injection molding technology and the injection moulding product qualification rate that leads to is low and overhaul inconvenient problem.

Description

Mould needle controller

Technical Field

The embodiment of the utility model provides a relate to injection molding process technical field, concretely relates to mould needle controller.

Background

The injection molding process generally comprises the process flows of mold closing, pressure maintaining, cooling, mold stripping, dimension measurement, detection and recovery. Die assembly: aligning the rear die and the front die, closing the dies, and injecting a thermoplastic base material into a cavity defined by the rear die and the front die; pressure maintaining: giving a fixed pressure to the thermoplastic substrate between the rear mold and the front mold for a certain time; and (3) cooling: cooling the thermoplastic substrate to room temperature; demolding: removing the front mold and taking out the plastic part; size measurement and detection: detecting whether the product has defects such as unfilled corners and the like through automatic detection equipment, and judging whether the product is a defective product or a qualified product; and (3) recovering: and uniformly recovering and melting unqualified products, and performing injection molding again, wherein the processes are carried out.

The valve needle becomes an important part of the injection molding machine due to the advantages of high hardness, high toughness, surface nitriding treatment, long service life, good strength and the like, and in actual production, the valve needle can be opened only when the injection molding machine closes the mold, and the production process cannot be flexibly adjusted, so that the problems of blushing of the bottom of a bottle blank, point bubble injection, uneven injection molding and the like are caused, and once equipment faults occur, the valve needle is in a closed state, the valve needle is difficult to overhaul, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a mould needle controller to solve and to control the needle in a flexible way among the current injection moulding technology and the injection moulding product that leads to is low in qualification rate and overhaul inconvenient problem.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to a first aspect of an embodiment of the present invention, there is provided a mold valve pin controller,

the needle controller includes the controller body and sets up the control circuit in the controller body is inside, control circuit includes a plurality of relays, solenoid valve and control switch, a plurality of relays include first relay, second relay, third relay, fourth relay and fifth relay, first relay links to each other with second relay and third relay, fourth relay and fifth relay link to each other, control switch includes knob switch and moving switch, the solenoid valve is installed on the control circuit.

Further, the knob switch comprises a three-knob switch, and the three-knob switch is provided with a mold closing control gear, a closing function gear and a glue injection control gear.

Furthermore, the die assembly control gear is connected with the first relay and the third relay, the closing function gear is connected with the second relay, and the glue injection control gear is connected with the fourth relay.

Furthermore, the inching switch is connected with a fifth relay, and the inching switch, the fifth relay and the electromagnetic valve form an inching control loop.

Furthermore, an indicator light is connected to the control circuit and is mounted on the surface of the controller body.

Further, the first relay, the third relay and the fourth relay are all provided with signal input ends.

The embodiment of the utility model provides a have following advantage:

the embodiment of the utility model provides a realize the nimble control to the needle in the injection moulding process stage of difference through rotary switch, and through the setting of electric circuit, can be when transferring the repair to the mould, the opening and shutting of more nimble control needle to improve injection moulding product's efficiency and quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic circuit structure diagram of a control circuit of a mold valve needle controller according to embodiment 1 of the present invention;

fig. 2 is an external structural schematic diagram of a mold valve needle controller provided in embodiment 1 of the present invention;

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

Example 1

Before introducing the embodiment of the utility model, it is at first right the utility model discloses a some theory of operation make simple introduction: hot runner solenoid valve structure and theory of operation: when there is no pressure difference between inlet and outlet, electromagnetic force directly lifts the small pilot valve and the main valve closing part upwards to open the valve. When the inlet and the outlet reach starting pressure difference, after the power is switched on, the electromagnetic force leads the small valve, the pressure of the lower cavity of the main valve rises, the pressure of the upper cavity falls, and therefore the main valve is pushed upwards by utilizing the pressure difference; when the power is cut off, the closing member is pushed by the pilot valve by spring force or medium pressure to move downwards, so that the valve is closed. Namely, the valve needle is controlled to be opened and closed by controlling the inlet and the outlet of the air passage.

However, in the control production of the existing hot runner mold, the valve needle is opened only when injecting the injection, the opening and closing of the valve needle cannot be flexibly adjusted in a plurality of process flows of injection molding, and the inconvenience is brought to the maintenance.

Therefore, the embodiment 1 of the present invention provides a mold valve needle controller, and referring to fig. 1 and fig. 2, the valve needle controller includes a controller body 01 and a control circuit disposed inside the controller body, and the control circuit is connected to a 24V power supply. The control circuit includes a plurality of relays, solenoid valve YV and control switch, and a plurality of relays include first relay KA1, second relay KA2, third relay KA3, fourth relay KA4 and fifth relay KA5, and control switch includes rotary switch 02 and point switch SB4, and solenoid valve YV installs on control circuit. The control switch and the indicator light L are both arranged on the surface of the controller body. The devices form a plurality of control loops to realize the transmission and execution of control signals.

Specifically, first relay KA1 links to each other with second relay KA2 and third relay KA3, fourth relay KA4 and fifth relay KA5 link to each other, first relay KA1, third relay KA3 and fourth relay KA4 all are provided with signal input, in the flow of moulding plastics, before the pressure maintaining operation, basically include sol, compound die, sit and advance and penetrate gluey, consequently, signal input includes signal 1, signal 2, signal 3 and signal 4 respectively, wherein, signal 1 is the sol signal, signal 2 is the compound die signal, signal 3 is the signal of sitting and advancing, signal 4 is the signal of penetrating gluey. In the automatic control process of injection molding, the valve needle automatically opens and closes according to the above process, but the valve needle controller of the embodiment can realize manual control of opening and closing of the valve needle.

Furthermore, the first relay KA1, the third relay KA3 and the fourth relay KA4 form the injection molding process, in the embodiment, the control of the circuit is realized by arranging the knob switch 02, the knob switch 02 is preferably a three-knob switch 02, and the three-knob switch 02 has a mold closing control stage SB1, a closing function stage SB2 and a glue injection control stage SB 3. The mold closing control gear SB1 is connected with a first relay KA1 and a third relay KA3, the closing function gear SB2 is connected with a second relay KA2, and the glue injection control gear SB3 is connected with a fourth relay KA 4. When the rotary switch rotates to the mold closing control gear SB1, the third relay KA3 is electrified, and at the moment, if the third relay KA3 receives a mold closing signal, the electromagnetic valve YV is conducted, and the valve needle is controlled to be opened; the knob switch 02 is rotated to a glue injection control gear SB3, when the fourth relay KA4 receives a glue injection signal, the control circuit is conducted, the electromagnetic valve YV receives a trigger signal, and the valve needle is controlled to be opened; it should be noted that the second relay KA2 is connected in parallel in the control circuit, and is equivalent to a conductive circuit of the electromagnetic valve YV, when the switching signal is converted to rotate the knob switch 02 to the closing function shift SB2, the electromagnetic valve YV is de-energized, and the valve needle is controlled to be closed.

In addition, the inching switch SB4 is connected with the fifth relay KA5, and the inching switch SB4, the fifth relay KA5 and the electromagnetic valve YV form an inching control loop, so that inching control of the valve needle can be realized, and the valve needle can be controlled to be opened and closed more flexibly when a mold is adjusted and repaired.

The control circuit of this embodiment is connected with pilot lamp L on, and the pilot lamp is installed on the surface of controller body for whether the demonstration control circuit normally works.

In correspondence with the above embodiment, the present embodiment 2 provides a control method of a mold needle controller, the method including:

the knob switch 02 is rotated to a mold closing control position SB1, when a third relay KA3 receives a mold closing signal, a control circuit is conducted, and a solenoid valve YV receives a trigger signal to control a valve needle to be opened;

the knob switch 02 is rotated to a glue injection control gear SB3, when the fourth relay KA4 receives a glue injection signal, the control circuit is conducted, the electromagnetic valve YV receives a trigger signal, and the valve needle is controlled to be opened;

the knob switch 02 is rotated to a closing function gear SB2, the electromagnetic valve YV is powered off, and the valve needle is controlled to be closed.

The control method further comprises the following steps: the click switch SB4 is pressed, and the fifth relay KA5 is electrified, so that the electromagnetic valve YV is electrified, the valve needle is controlled to be opened, and manual maintenance is facilitated.

The utility model discloses above-mentioned embodiment realizes the nimble control to the needle in the injection moulding process stage of difference through rotary switch 02, and through electric circuit's setting, can be when transferring the mould and repair, the opening and shutting of more nimble control needle to improve injection moulding product's efficiency and quality.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (6)

1. The utility model provides a mould needle controller, its characterized in that, needle controller includes the controller body and sets up the control circuit inside the controller body, control circuit includes a plurality of relays, solenoid valve and control switch, a plurality of relays include first relay, second relay, third relay, fourth relay and fifth relay, first relay links to each other with second relay and third relay, fourth relay and fifth relay link to each other, control switch includes knob switch and moving switch, the solenoid valve is installed on the control circuit.

2. The mold valve pin controller of claim 1 wherein the rotary switch comprises a three-knob switch having a clamp control position, a shut down function position and a shot control position.

3. The mold pin controller of claim 2, wherein the clamp control gate is connected to a first relay and a third relay, the close function gate is connected to a second relay, and the shot control gate is connected to a fourth relay.

4. The mold valve pin controller of claim 1, wherein the jog switch is connected to a fifth relay, and the jog switch, the fifth relay and the solenoid valve form a jog control loop.

5. The mold valve pin controller of claim 1, wherein an indicator light is connected to the control circuit and is mounted on a surface of the controller body.

6. The mold pin controller of claim 1, wherein the first relay, the third relay and the fourth relay are provided with signal inputs.

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