CN103128278A - Powder molding machine upper slide block protection demolding mechanism - Google Patents
Powder molding machine upper slide block protection demolding mechanism Download PDFInfo
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- CN103128278A CN103128278A CN 201110376143 CN201110376143A CN103128278A CN 103128278 A CN103128278 A CN 103128278A CN 201110376143 CN201110376143 CN 201110376143 CN 201110376143 A CN201110376143 A CN 201110376143A CN 103128278 A CN103128278 A CN 103128278A
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- slide block
- powder
- cylinder piston
- top shoe
- upper slide
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Abstract
The invention relates to a powder molding machine upper slide block pressing protection demolding mechanism which comprises an upper air cylinder crash pad arranged on the lower portion of an upper air cylinder piston and connected with the upper air cylinder piston. Two sides of an upper connecting plate are respectively provided with a guide post. Each guide post is arranged in an upper slide block mechanism. A guide sleeve matched with the guide post is arranged in each upper slide block mechanism. According to the powder molding machine upper slide block protection demolding mechanism, two guide post mechanisms used for protecting demolding are additionally arranged so that guide accuracy and location accuracy of an upper punch are increased, an anti-rotation function to the upper air cylinder piston is achieved, the whole mechanism is capable of keeping a steady operation state in the operation process all the time, molding quality of a finished product is guaranteed and the mechanism is protected from being damaged easily.
Description
Technical field
The present invention relates to a kind of upper slide block of powder forming machine protection mould emptier, belong to powder metallurgical technology.
Background technology
The top shoe briquetting machine is the important component part of powder metallurgy, the quality of its quality directly affects the quality of moulded products, there is following defective in existing top shoe briquetting machine: upper punch moves downward in process directly by the upper cylinder piston driving, due to the guiding that there is no guiding mechanism, easily run-off the straight in motion process, and because tilting the upper cylinder piston to be rotated and drive associated components, it moves together, the accumulation of this kind motion very easily causes mutually clashing between each parts of whole briquetting machine, is easy to cause mechanism to damage.
Summary of the invention
The present invention is directed to defects, purpose is to provide a kind of upper slide block of powder forming machine protection mould emptier with guiding mechanism.
The technical solution used in the present invention is for this reason: comprise be arranged on upper cylinder piston bottom and and the upper cylinder cushion pad of its connection, lead is established in upper junction plate both sides, lead is arranged in top shoe mechanism, establishes the fairlead with the lead cooperation in top shoe mechanism.
Advantage of the present invention is: the two lead mechanism that has increased the protection demoulding; guiding and the positioning accuracy of upper punch have been improved; also played the anti-rotation effect to the upper cylinder piston; make whole mechanism can remain motion state stably in running, guarantee the Forming Quality of goods and make mechanism be difficult for being damaged.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of pressing adjusting mechanism.
In figure, 1 changes plate for bulb for bulb spline circle, 17 for worm screw, 16 for worm gear, 15 for ball screw, 14 for top shoe connecting rod, 13 for driving crank, 12 for top shoe ball screw guiding mechanism, 11;
2 is that top shoe, 3 is that alignment pin, 4 is the piston alignment pin;
5 is that hydraulic die cushion pressure indication mechanism, 51 is that upper cylinder piston, 52 is that hydraulic cushion cylinder piston, 53 is that top shoe air cylinder board, 54 is that upper junction plate, 55 is the upper cylinder cushion pad;
6 is that guide pillar, 62 is fairlead for protecting mould emptier, 61;
7 is that synchronously compacting and final pressing mechanism, 71 are that synchronous pressure liquefaction cylinder, 72 is that supporting seat, 74 is negative template for suppressing adjusting screw(rod), 73;
8 for powder compaction move powder mechanism, 81 for move powder cylinder, 82 for locking nut, 83 for moving powder bar contiguous block, 84 for moving powder bar briquetting.
The specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing:
1, top shoe ball screw guiding mechanism 1:
This mechanism: (1), when being used for compacting, the amount of pressurization of upper punch is adjusted, namely adjust the top shoe mechanism that comprises top shoe 2; (2) drive top shoe connecting rod 12 by driving crank 11, complete the pressurization pressing process of top shoe 2; Can regulate the shut height of machine by adjusting this mechanism when (3) machine assembles, its process is as follows: rotate and drive worm gear 14 rotations by driven by motor worm screw 15, ball screw 13 is by bulb spline circle 16 splines, it can only be moved up and down under the drive of worm gear 14, drive top shoe mechanism and move up and down thereby change plate 17 by bulb, complete adjustment process.
2, hydraulic die cushion pressure indication mechanism 5:
operational forces when this mechanism suppresses whole top shoe briquetting machine is carried out Real Time Monitoring, its principle is injection pressure oil in oil pocket between hydraulic cushion cylinder piston 52 and top shoe air cylinder board 53, this oil pocket is connected with pressure sensor, the pressure from the upper punch on mould bases that upper junction plate 54 bears, reach the hydraulic die cushion oil pocket by upper cylinder piston 51 and hydraulic cushion cylinder piston 52, show in real time on touch-screen by PLC again, when another function of this mechanism is the vexed car of machine pressing, namely working as upper punch is stuck in former, can bleed off the pressure oil in hydraulic die cushion, top is unclamped, so that process upper punch or drive anti-car, are connected with alignment pin and realize connect by establishing piston alignment pin 4 between top shoe ball screw guiding mechanism 1 of the present invention and top shoe air cylinder board 53.
3, protection mould emptier 6:
Its operation principle is top shoe mechanism under driving crank 11 effects downwards after end-of-job, upwards make drawback movement, after also namely suppressing end-of-job, machine is done demoulding campaign, namely goods are deviate from the cavity impression on mould bases, this process is that former moves downward, and bottom punch is motionless, and goods are ejected die cavity.For prevent that goods from ftractureing in deviating from process; when upper punch moves on top shoe 2 backhauls; the 51 upper end ventilations of upper cylinder piston; upper cylinder piston 51 moves downward the drive upper punch and moves downward; although top shoe 2 drives upper punch and moves upper; but because the piston rod of upper cylinder piston 51 is moving down; the relative position that makes upper punch be pressed on goods does not change; upper punch is compressed on goods with a constant force all the time; until goods are deviate from die cavity fully, reach the purpose of the protection demoulding.Its course of work is: driving crank 11 drives top shoe 2 and moves downward end, move on top shoe 2, and demoulding action beginning, the 51 upper end ventilations of upper cylinder piston move downward it, and beginning angle is that 170 degree left and right beginnings finish to 280 degree; Upper cylinder piston 51 lower end ventilations after finishing, piston reset is up, and an impulse stroke finishes.For preventing that being reset to terminal point produces shock, increase upper cylinder cushion pad 56 herein, to reach the purpose of the buffering that resets; In addition for making descending reliable and stable, the accurate positioning shaping-orientation post guiding mechanism of upper cylinder piston 51, be that upper junction plate 54 connects upper cylinder piston 51 and led by both sides guide pillar 61, move up and down in guide pillar 61 fairleads 62, are connected the corresponding construction part of the utmost point and connection thereof with anti-rotation upper cylinder piston with guiding.
4, synchronously the compacting and final pressing mechanism 7:
The operation principle of this mechanism is to come execution by a pair of synchronous pressure liquefaction cylinder 71 that is connected on top shoe air cylinder board 53, mechanism moves downwards by top shoe, driving synchronous pressure liquefaction cylinder 71 moves down, to being pressed onto on compacting adjusting screw(rod) 72, drive negative template 74 by supporting seat 73 and force to move down, to reach the upwards purpose of pressurization of bottom punch; The size of synchronous pressing stroke is regulated (being exactly in fact the adjusting to the goods volume under pressure) by compacting adjusting screw(rod) 72; When negative template 74 is stopped when motionless by lower block, top shoe 2 continues to move downward, the 71 overflow valve overflows of synchronous pressure liquefaction cylinder, cylinder piston rod is retracted along with moving down of upper punch, until upper pressurization finishes fully, namely top shoe 2 strokes finish fully, i.e. the pressurization of upper punch to goods for the third time, its objective is and improve goods top density, improve the uniformity of extrudate density; Its sequence of movement is: drive top shoe 2 by driving crank 11 and move down, upper punch enters die cavity and powder is pressurizeed first, then synchronous pressure liquefaction cylinder 71 is pushed down compacting adjusting screw(rod) 72 and is driven negative template 74 compacting downwards and moves to certain stroke, completes pressure process for the second time; The supported block of negative template 74 this moment stops motionless, upper punch continues to move down with top shoe 2,71 overflows of synchronous pressure liquefaction cylinder, and piston resets along with moving down of upper punch and returns, upper punch continues to move downward until capable 2 journeys of top shoe finish, and completes final pressure process.
5, powder compaction is moved powder mechanism 8:
The purpose that designs this structure is to be the upper outside step design that is shaped, this mechanism is guaranteed the density of upper outside step, comprise moving powder cylinder 81 and being connected to move by locking nut 82 and move the powder extension bar on powder cylinder 81, move powder extension bar bottom and connect and move powder bar briquetting by moving powder bar contiguous block 83; Its principle is that utilization moves powder cylinder 81 and top shoe 2 together moves down, and next punching that promotes to be contained on float plate together moves down into the position that block is located, and float plate is stopped by block, and top shoe 2 continues to press down, and moves the retraction of powder cylinder piston rod, and outer step is pressed shaping.the design that moves powder mechanism need to be relevant with the dress powder form of former, the dress powder of outer step requires the centre many, few up and down, and actual dress powder structure can only realize that upper end dress powder is many, step broad in the middle is shaped needs more powder, come compressing in the middle of needing the upper end powder is moved to, the characteristics that at first the present invention contacts with former by moving powder bar briquetting 84, make former be subject to a downward power but keep motionless, it is subject to powder to its downward frictional resistance, powder is subject to the former inwall to its downward power conversely, it is moved downward, thereby make powder stream in the middle of former, thereby guarantee the Forming Quality of goods.
Claims (1)
1. upper slide block of powder forming machine is protected mould emptier; it is characterized in that, comprise be arranged on upper cylinder piston bottom and with the upper cylinder cushion pad of its connection, lead is established in upper junction plate both sides; lead is arranged in top shoe mechanism, establishes the fairlead that coordinates with lead in top shoe mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110376143 CN103128278A (en) | 2011-11-23 | 2011-11-23 | Powder molding machine upper slide block protection demolding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110376143 CN103128278A (en) | 2011-11-23 | 2011-11-23 | Powder molding machine upper slide block protection demolding mechanism |
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| Publication Number | Publication Date |
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| CN103128278A true CN103128278A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110376143 Pending CN103128278A (en) | 2011-11-23 | 2011-11-23 | Powder molding machine upper slide block protection demolding mechanism |
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| CN (1) | CN103128278A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625051A (en) * | 2015-01-30 | 2015-05-20 | 苏州莱特复合材料有限公司 | Assisted demoulding mechanism for powder metallurgy molding upper punch |
| CN106670457A (en) * | 2016-12-31 | 2017-05-17 | 扬州市海力精密机械制造有限公司 | Tapered wedge slide block type de-molding mechanism and de-molding process thereof |
| CN111014663A (en) * | 2019-12-11 | 2020-04-17 | 江西开源自动化设备有限公司 | Powder forming press and protection demoulding hydraulic control system thereof |
-
2011
- 2011-11-23 CN CN 201110376143 patent/CN103128278A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625051A (en) * | 2015-01-30 | 2015-05-20 | 苏州莱特复合材料有限公司 | Assisted demoulding mechanism for powder metallurgy molding upper punch |
| CN106670457A (en) * | 2016-12-31 | 2017-05-17 | 扬州市海力精密机械制造有限公司 | Tapered wedge slide block type de-molding mechanism and de-molding process thereof |
| CN106670457B (en) * | 2016-12-31 | 2023-04-14 | 扬州市海力精密机械制造有限公司 | Wedge slide block type demoulding mechanism and demoulding process thereof |
| CN111014663A (en) * | 2019-12-11 | 2020-04-17 | 江西开源自动化设备有限公司 | Powder forming press and protection demoulding hydraulic control system thereof |
| CN111014663B (en) * | 2019-12-11 | 2022-05-13 | 江西开源自动化设备有限公司 | Powder forming press and protection demoulding hydraulic control system thereof |
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Application publication date: 20130605 |