CN2495395Y

CN2495395Y - Powder die casting machine

Info

Publication number: CN2495395Y
Application number: CN 01231180
Authority: CN
Inventors: 林明通
Original assignee: Yuecun Science & Technology Co Ltd
Current assignee: Yuecun Science & Technology Co Ltd
Priority date: 2001-07-30
Filing date: 2001-07-30
Publication date: 2002-06-19
Anticipated expiration: 2011-07-30

Abstract

The utility model relates to a powder pressing and casting machine which includes a crank and a group of different cams which contains a first cam and a second cam which are arranged along the two sides of the crank. The crank controls the lifting and lowering of an upper punch to press and cast the powder in a middle die. The first cam controls the lowering of a mould pressing bar which controls the compression of a spring which is mounted at the bottom of the mould pressing bar and the lowering of the upper rotary disc gear and the lower rotary disc. A rocker arm is lowered by the lower rotary disc. During demolding, a pivot rotating block is pushed to rotate by a side connecting rod which is arranged on the lateral pivot positioned at the bottom of the demolding bar. At the same time the demolding bar is further lowered to eject the product upwards with a lower punch to finish demolding. The powder pressing and casting machine of the utility model has a simple structure and can reduce cost greatly.

Description

Powder die casting machine

Technical field

The utility model relates to a kind of powder die casting machine.

Background technology

The powder pressure is formed shape, be a program in the powder metallurgy continuous process, the mould of powder compacting mainly is that upper punch, low punch and external mold three are partly formed, with regard to pressure knot body moves back mould, the powder press can divide and moves back two kinds of formulas under motionless formula of exterior sheathing and the exterior sheathing, exterior sheathing not dynamic formula is depressed into final stage for pressing the knot body in external mold, to press the knot body by withdrawing from the external mold by the low punch rising, the formula of moving back under the exterior sheathing is then fixed to make for utilizing exterior sheathing to continue decline drive external mold decline but with low punch and is pressed the knot body to withdraw from external mold.

The opinion with general traditional type powder die casting machine structure, because described powder die casting machine is a kind of large-scale machine, its zero annex is more and structure is comparatively complicated, and the higher shortcoming of cost is arranged simultaneously, remains to be improved.

Summary of the invention

Main purpose of the present utility model is to provide a kind of zero less, simple in structure thereby lower-cost powder die casting machine of annex.

For achieving the above object, powder die casting machine of the present utility model, include: one can pass through power-actuated bent axle, both sides in bent axle are provided with one first cam and second cam with spacing distance, be provided with percussion hammer in the bottom of bent axle central authorities, be provided with a cope match-plate pattern in the bottom of last percussion hammer, bottom outside in cope match-plate pattern is provided with guide pillar, protrude out the upper punch that can compress metal dust down in the cope match-plate pattern bottom center, each guide pillar bottom is connected with mould in, is formed with die cavity among the Yu Zhongmo, in die cavity, can place metal dust, metal dust is extruded finished product down by upper punch, and the Yu Zhongmo bottom is connected with a decline plate by connecting rod, is provided with a low punch in the die cavity bottom; Be characterized in: be provided with a pressing mold bar with suitable length in the below of first cam, be respectively equipped with several springs, set firmly a lower spring cup in several springs bottoms in pressing mold bar both sides; Sentence spacing distance in the bottom of pressing mold bar and be provided with top rotary table gear, hypomere pressurization pole socket and lower rotary table from top to bottom in regular turn, be provided with rocking arm with spacing distance in the bottom of lower rotary table; Be provided with a body of rod in low punch bottom, the described body of rod can pass a control plate that is positioned at the rocking arm below; The pivot block that is pivoted in body of rod bottom is provided with a pedestal in the pivot block bottom; Be positioned at second cam bottom and be provided with one and move back tringle, to a side connecting rod is set, described side connecting rod bottom can articulate mutually with a side of pivot block, is provided with a spring between the body of rod and articulated section in bottom one skew back that moves back tringle.

Because the both sides of a bent axle are provided with a different set of first, two cams, described bent axle can be controlled the liter of upper punch, fall, so that die casting powder in the middle mould, the controlled tringle of neutralizing of first cam descends, the pressing mold bar can be controlled its bottom set spring compression and top rotary table gear, lower rotary table presses down, lower rotary table can make a rocking arm press down, when when moving back mould, can be positioned at by one and move back side connecting rod that side, tringle bottom is pivoted and promote a pivot block and pivot, can make that to move back the position that tringle presses down lower this moment, finished product can be ejected up to reach by the effect of low punch and to move back the mould purpose, therefore simple in structure and cost can significantly reduce.

Understand the purpose of this utility model, characteristics and advantage for clearer, the utility model is elaborated below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 be powder die casting machine of the present utility model in conjunction with cutaway view.

Fig. 2 be upper punch of the present utility model in pressed status in conjunction with cutaway view.

Fig. 3 is that the combination of upper punch of the present utility model when pressurization analysed and observe.

Fig. 4 be the utility model when moving back the mould state in conjunction with cutaway view.

Fig. 5 is the partial perspective view of pressing mold bar of the present utility model.

Fig. 6 is a partial perspective view of moving back tringle of the present utility model.

The specific embodiment

See also shown in Figure 1, powder die casting machine of the present utility model, it includes:

One can pass through power-actuated bent axle 10, both sides in bent axle 10 are provided with one first cam 12 and second cam 13 with spacing distance, the length of first cam 12 is less than the length of second cam 13, but the angle that first cam 12 and second cam 13 are arranged on the bent axle 10 is inequality;

Be provided with percussion hammer 14 in the bottom of bent axle 10 central authorities, be provided with a cope match-plate pattern 15 in the bottom of last percussion hammer 14, bottom outside in cope match-plate pattern 15 is provided with guide pillar 16, protrude out down in cope match-plate pattern 15 bottom center and be provided with upper punch 17, but the tight metal dust of voltage supply that act as of described upper punch 17 is used;

Each guide pillar 16 bottom is connected with mould 20 in, in middle mould 20, be formed with die cavity 21, in die cavity 21, can place metal dust such as iron powder, metal dust can be extruded finished product 22 down by upper punch 17, as shown in Figure 4, can interconnect by a connecting rod 24 and a decline plate 25 in middle mould 20 bottoms, be provided with a low punch 23 in die cavity 21 bottoms, the effect of described low punch 23 is for supplying finished product 22 ejection up to be gone out usefulness;

Be provided with a pressing mold bar 30 with suitable length in the below of first cam 12, as shown in Fig. 1,5, be respectively equipped with several springs 31 in pressing mold bar 30 both sides, set firmly a lower spring cup 32 in several spring 31 bottoms, the effect of each spring 31 is that voltage supply tringle 30 returns back to original position after pressing down;

Sentence spacing distance in the bottom of pressing mold bar 30 and be provided with top rotary table gear 33, unidirectional oil hydraulic cylinder 34 and lower rotary table 35 from top to bottom in regular turn, and be provided with rocking arm 36 with spacing distance in the bottom of lower rotary table 35;

Be provided with a body of rod 37 in low punch 23 bottoms, the described body of rod 37 can pass a control plate 38 that is positioned at rocking arm 36 belows, is respectively equipped with a pneumatic cylinder 39 with the effect of pushing back in the down either side of control plate 38;

The pivot block 40 that is pivoted in the body of rod 37 bottoms, described pivot block 40 roughly is L shaped, and is provided with a pedestal 41 in pivot block 40 bottoms;

The bottom that is positioned at second cam 13 is provided with one and moves back tringle 50, as shown in Figure 6, to a side connecting rod 51 is set, described side connecting rod 51 bottoms can articulate mutually with a side of pivot block 40 in bottom one skew back that moves back tringle 50, and are provided with a spring 52 between the body of rod 37 and articulated section.

As shown in fig. 1, when filling enters metal dust in middle mould 20, between upper punch 17 and middle mould 20 the proper spacing distance is arranged still when using after the combination by said structure; When in pressurization, can make down start of upper punch 17, the bottom of upper punch 17 is pressed in the metal powder end of middle mould 20 inside, as shown in Figure 2, when when pressurization does not finish as yet, pressing mold bar 30 can be controlled several spring 31 compressions of its bottom, and lower rotary table 35 is pressed down, lower rotary table 35 can press down via rocking arm 36 interlocks, and can make decline plate 25, connecting rod 24 so that middle mould 20 slightly descends suitable distance, can have suitable cushioning effect, make finished product density more even.

When moving back the operation of mould, as shown in Fig. 3 and 4, can will move back tringle 50 by second cam 13 presses down, by moving back tringle 50 pivot block 40 is pivoted, can make that to move back the position that tringle 50 presses down lower this moment, promptly in mould 20 can be descended once again by the interlock effect of the body of rod 37, decline plate 25 and connecting rod 24, can finished product 22 ejections be gone out by the bottom-up of middle mould 20 by low punch 23, again finished product 22 is taken off, can finish the operation of moving back mould.

Main design feature of the present utility model is: by simple pressing mold bar 30 and move back that tringle 50 can reach that structure is comparatively simplified and can reach the practical purpose that significantly reduces cost simultaneously.

Therefore, by above explanation as can be known, the utility model can have following advantage at least:

First cam, the 12 controlled tringles 30 of neutralizing descend, pressing mold bar 30 can be controlled its set spring in bottom 31 compressions and top rotary table gear 33, lower rotary table 35 presses down, lower rotary table 35 can make a rocking arm 36 press down, when when moving back mould, can be positioned at by one and move back side connecting rod 51 promotions one pivot block 40 pivots that side, tringle 50 bottom is pivoted, can make that to move back the position that tringle 50 presses down lower this moment, effect by low punch 23 can eject finished product 22 up to reach moves back the mould purpose, and the utility model has advantage simple in structure and that cost can significantly reduce.

Claims

1. powder die casting machine, include: one can pass through power-actuated bent axle, both sides in bent axle are provided with one first cam and second cam with spacing distance, be provided with percussion hammer in the bottom of bent axle central authorities, be provided with a cope match-plate pattern in the bottom of last percussion hammer, bottom outside in cope match-plate pattern is provided with guide pillar, protrude out the upper punch that can compress metal dust down in the cope match-plate pattern bottom center, each guide pillar bottom is connected with mould in, be formed with die cavity among the Yu Zhongmo, can place metal dust in die cavity, metal dust is extruded finished product down by upper punch, the Yu Zhongmo bottom is connected with a decline plate by connecting rod, is provided with a low punch in the die cavity bottom; It is characterized in that:

Be provided with a pressing mold bar with suitable length in the below of first cam, be respectively equipped with several springs, set firmly a lower spring cup in several springs bottoms in pressing mold bar both sides;

Sentence spacing distance in the bottom of pressing mold bar and be provided with top rotary table gear, hypomere pressurization pole socket and lower rotary table from top to bottom in regular turn, be provided with rocking arm with spacing distance in the bottom of lower rotary table;

Be provided with a body of rod in low punch bottom, the described body of rod can pass a control plate that is positioned at the rocking arm below;

The pivot block that is pivoted in body of rod bottom is provided with a pedestal in the pivot block bottom;

Be positioned at second cam bottom and be provided with one and move back tringle, to a side connecting rod is set, described side connecting rod bottom can articulate mutually with a side of pivot block, is provided with a spring between the body of rod and articulated section in bottom one skew back that moves back tringle.

2. powder die casting machine as claimed in claim 1 is characterized in that, is respectively equipped with a pneumatic cylinder with the effect of pushing back in the down either side of control plate.

3. powder die casting machine as claimed in claim 1 is characterized in that, the length of described first cam is the length less than described second cam, and it is inequality that first cam and second cam are arranged at the angle of bent axle.