CN206966604U - Floating push rod two-step ejecting with pressure detecting automatically cuts off ingate compression mod - Google Patents

Abstract

The utility model proposes that the floating push rod with pressure detection can be pushed out twice to automatically cut off the inner gate die-casting mold, including the fixed mold cover plate, the movable mold insert, the die-casting cavity, the diverter cone, the elastic heat insulating block, the piezoelectric sensor, and the casting push rod , runner push rod, push plate; the elastic heat insulating block is set on the bottom surface of the diverter cone; the lower end surface of the elastic heat insulating block is connected with the measurement surface of the piezoelectric sensor; the bottom end of the casting push rod is connected with the push plate; the runner push rod The top is connected to the sprue of the die-casting cavity, and there is a gap between the bottom and the push plate; when die-casting, the high-pressure molten metal pushes away the splitter cone to make the piezoelectric sensor generate an electrical signal due to pressure; When the casting is pushed out, the push plate moves upward to push the casting push rod upwards out of the usable part of the casting until the remaining material of the runner is broken, and then the push plate continues to move upward to contact the bottom of the runner push rod and push out the broken runner upwards Remaining material: This product can measure the pressure in the die-casting cavity in real time, and can automatically cut off the remaining material of the runner when the casting is pushed out.

Description

Floating push rod secondary push with pressure detection automatically cut off the inner gate die-casting mold

technical field

The utility model relates to the field of pressure casting equipment, in particular to a pressure-detecting floating push rod that is pushed out twice and automatically cuts off the inner sprue die-casting mold.

Background technique

In die-casting production, if the die-casting has inserts, how to eject the product quickly and stably is a big problem. In the usual die-casting process, using one-time ejection is inefficient and affects product quality. What is more fatal is The cutting of the ingate takes a lot of labor.

If the push rod is set in a floating structure, the secondary ejection can be realized, and the primary ejection force can be greatly reduced, thereby greatly improving the product quality.

In the die-casting process, if the internal pressure of the die-casting cavity can be measured quickly and directly, it is very beneficial for the control of the die-casting process, but the space of the die-casting mold is small and it is difficult to install the pressure measuring device, and the high temperature of the casting process is easy to cause interference to the pressure measuring device , how to solve the above problems is a research direction.

Contents of the invention

The utility model proposes that the floating push rod with pressure detection is pushed out twice to automatically cut off the die-casting mold of the inner gate, which can measure the pressure in the die-casting cavity in real time, and can automatically cut off the remaining material of the runner when the casting is pushed out.

The utility model adopts the following technical solutions.

The floating push rod with pressure detection is pushed out twice to automatically cut off the inner gate die-casting mold. The die-casting mold includes a fixed mold cover plate, a movable mold insert, a die-casting cavity, a splitter cone, an elastic heat insulating block, a piezoelectric sensor, and a casting push rod , runner push rod, push plate; the elastic thermal insulation block is arranged on the bottom surface of the diverter cone and supports the diverter cone to block the sprue inlet; the lower end surface of the elastic thermal insulation block is connected with the measuring surface of the piezoelectric sensor; the pusher The plate is located under the movable mold insert; the top end of the casting push rod is connected to the casting forming part of the die-casting cavity, and the bottom end is connected to the push plate; the top end of the runner push rod is connected to the sprue part of the die-casting cavity, There is a gap between the bottom end and the push plate; when die-casting, the high-pressure molten metal pushes away the diverter cone and enters the die-casting cavity from the inlet of the straight channel, so that the piezoelectric sensor generates an electrical signal due to the pressure; when the casting is pushed out , the push plate moves upwards to push the casting push rod upwards out of the usable part of the casting until the remaining runner material on the casting is broken, and then the push plate continues to move upwards to contact the bottom of the runner push rod, pushing the runner push rod upward to push out Sprue residue that was pulled off.

The gate breaking interval length is more than 15mm.

The elastic heat insulating block is a heat-resistant rubber block.

In the utility model, the elastic heat insulating block is arranged on the bottom surface of the diverter cone and supports the diverter cone to block the sprue inlet; the lower end surface of the elastic heat insulating block is connected with the measurement surface of the piezoelectric sensor; the elastic heat insulating block is heat-resistant Rubber block; this design can realize the functions of heat insulation, elastic pushing and casting cavity pressure transmission in the narrow mold structure, not only makes the splitter cone can reliably block the flow channel, but also can transmit the casting cavity pressure to the piezoelectric The sensor generates electrical signals for external equipment to measure, and can effectively prevent the high temperature in the die-casting cavity from causing the piezoelectric sensor to produce pyroelectric effect and affect the measurement accuracy.

In the utility model, since the push plate pushes the different travel positions of the casting push rod and the runner push rod, the gate and runner discarded parts on the casting are automatically broken during the casting ejection process, reducing the subsequent The workload of waste removal in the process has effectively improved the production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Accompanying drawing 1 is the schematic diagram of the utility model;

In the figure: 1-fixed mold cover plate; 2-moving mold insert; 7-casting push rod; 9-push plate; 10-elastic insulation block; 11-piezoelectric sensor; Runner push rod; 15-splitter cone; 18-sprue inlet; 101-die-casting cavity.

Detailed ways

As shown in Figure 1, the floating push rod with pressure detection is pushed out twice to automatically cut off the inner gate die-casting mold. Heat insulation block 10, piezoelectric sensor 11, casting push rod 7, runner push rod 13, push plate 9; the elastic heat insulation block 10 is set on the bottom surface of the diverter cone 15 and supports the diverter cone 15 to block the sprue inlet 18 The lower end surface of the elastic heat insulating block 10 is connected to the measurement surface of the piezoelectric sensor 11; the push plate 9 is located below the movable mold insert 2; The end is connected with the push plate 9; the top of the runner push rod 13 is connected with the runner part of the die-casting cavity 101, and there is a sprue breaking interval 12 between the bottom end and the push plate 9; when performing die-casting, The high-pressure molten metal pushes away the diverter cone and enters the die-casting cavity 101 from the inlet 18 of the direct-flow channel, so that the piezoelectric sensor 11 generates an electrical signal due to the pressure; when the casting is pushed out, the push plate moves upwards and pushes the casting push rod upward to push out the usable part of the casting until the casting The rest of the sprue on the top is pulled off, and then the push plate continues to move up to contact the bottom of the runner push rod, and pushes the runner push rod upward to push out the broken runner rest.

The gate breaking interval 12 has a length of more than 15 mm.

The elastic insulation block 10 is a heat-resistant rubber block.

Claims (3)

1. the floating push rod two-step ejecting with pressure detecting automatically cuts off ingate compression mod, it is characterised in that：The compression mod Pushed away including cover half cage plate, moving die insert, die casting chamber, spreader, elastic heat-insulating block, piezoelectric transducer, casting push rod, cross gate Bar, push pedal；The elastic heat-insulating block shunts cone blocking in sprue entrance located at spreader bottom surface and jacking；Elastic heat-insulating block lower end Face connects with the measuring surface of piezoelectric transducer；The push pedal is located at below moving die insert；The casting push rod top and die casting chamber Casting shaping position connect, bottom connects with push pedal；The cross gate push rod top connects with the running channel position of die casting chamber, bottom Cast gate, which is left, between end and push pedal breaks interval；When carrying out die casting, high-pressure metal liquation pushes spreader open from straight channel entrance Into die casting chamber, piezoelectric transducer is set to produce electric signal because of pressure；When casting is released, push pedal, which moves up, promotes casting push rod Until the running channel clout on casting is pulled off, then push pedal continues to move up and cross gate push rod bottom ejection casting available sites upwards Portion contacts, and promotes cross gate push rod to release the running channel clout being pulled off upwards.

2. the floating push rod two-step ejecting according to claim 1 with pressure detecting automatically cuts off ingate compression mod, its It is characterised by：The cast gate breaks gap length in more than 15mm.

3. the floating push rod two-step ejecting according to claim 1 with pressure detecting automatically cuts off ingate compression mod, its It is characterised by：The elastic heat-insulating block is heat resistant rubber block.