CN114311813A - Mechanism for adjusting filling amount of powder forming machine with double-demoulding-rod structure - Google Patents
Mechanism for adjusting filling amount of powder forming machine with double-demoulding-rod structure Download PDFInfo
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- CN114311813A CN114311813A CN202111618644.3A CN202111618644A CN114311813A CN 114311813 A CN114311813 A CN 114311813A CN 202111618644 A CN202111618644 A CN 202111618644A CN 114311813 A CN114311813 A CN 114311813A
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- 238000003825 pressing Methods 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 7
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Abstract
The invention relates to a mechanism for adjusting the filling amount of a powder forming machine with a double-demoulding-rod structure. The adjusting mechanism comprises a pressing beam, a lower sliding column, a female die, a mechanism for adjusting the number of filling cylinders and a mechanism for adjusting the stroke of the assemblies of the number of filling cylinders; the adjusting and connecting threaded sleeve is connected to the lower end covers of the filling cylinders and drives the lower end covers of the filling cylinders to move up and down; the stroke adjusting mechanism of the cylinder filling assemblies comprises an adjusting pinion, an adjusting worm, an adjusting transmission shaft, an adjusting supporting seat and an adjusting locking block, wherein the adjusting transmission shaft is arranged on the adjusting supporting seat, the adjusting worm is connected with the adjusting transmission shaft, the adjusting worm is in transmission connection with the adjusting pinion, the adjusting pinion and the adjusting gearwheel are in meshing transmission through a gear, and the adjusting locking block is arranged outside the adjusting transmission shaft and used for locking the adjusting transmission shaft. The invention has the advantages of uniform and compact powder filling, stable operation and high operation precision.
Description
Technical Field
The invention relates to a powder filling, up-down pressurizing and blank demoulding and pressing forming technology of a mould cavity, in particular to a mechanism for adjusting the filling amount of a powder forming machine with a double-demoulding-rod structure.
Background
In order to prevent unstable filling caused by powder splashing after an upper die of a powder product with small length-diameter ratio and small filling height enters a cavity, the existing mechanism is designed to enable a female die to upwards run for a fixed stroke height after filling is finished, so that the opening part of the cavity of the female die has a powder-free cavity state with a fixed height, the upper die cannot splash powder due to the fact that no powder exists on the fixed depth of the opening part of the upper die, and the stability of powder filling is ensured. The mold cavity is now a less filled state of powder filling.
For powder products with large diameter ratio and large filling height, in order to improve the uniformity and compactness of powder filling of a die cavity of a die and prevent the formed product from large demoulding deformation and sintering deformation caused by nonuniform density, the prior mechanism design firstly increases the filling height of suction type powder filling, enables a female die to downwards run for a fixed stroke height after the filling is finished, and enables the filling powder increased for improving the uniformity and compactness of powder filling to overflow out of a cavity opening of the female die and be taken away by a powder feeder in a resetting way, and at the moment, the die cavity is in a multi-filling state of powder filling.
The filling function of the existing double-demoulding-rod structure powder forming machine is realized by a cylinder or an oil cylinder with a fixed stroke, the sizes of the large filling quantity and the small filling quantity are fixed and cannot be adjusted, when powder products with different filling heights are faced, the precision index and the regulation and control time of the products are influenced by the fixed large filling quantity and the fixed small filling quantity, and the quality and the efficiency of the products are further reduced. Particularly, when higher more filling amount and less filling amount are not needed, the product formed by the existing mechanism for fixing the more filling amount can generate the problems of product quality and production efficiency such as fillet flashing, coaxiality error increase and regulation, single-cycle operation time and the like. When needing higher more filling volume and less filling volume simultaneously, the fashioned goods of current mechanism can appear because of filling inhomogeneous, the compactness is poor and cause the centre loose and then drawing of patterns deformation, sintering deformation increase, or the powder splashes when appearing going up and gets into the die cavity and spills over and cause and fill powder unstability etc. this is the factor that influences the shaping goods quality and efficiency that current mechanism exists on the market. The mechanism for adjusting the filling amount of the powder forming machine with the double-demolding rod structure is designed aiming at the problems, the problems of the existing mechanism are solved by designing the adjustable mechanism for increasing the filling stroke amount, and the market demand is further met.
Disclosure of Invention
The invention aims to provide a mechanism for adjusting the filling amount of a powder forming machine with a double-demoulding-rod structure, which has the advantages of uniform and compact powder filling, stable operation and high operation precision.
The technical scheme of the invention is as follows: the device comprises a double-demoulding-rod-structure powder forming machine, a filling amount adjusting mechanism, a discharging mechanism and a discharging mechanism, wherein the double-demoulding-rod-structure powder forming machine comprises a pressing beam, a lower sliding column, a female die, a filling cylinder mechanism and a filling cylinder assembly stroke adjusting mechanism;
the two ends of the pressing beam are respectively connected with a reset cylinder, the pressing beam is driven by the reset cylinder to reciprocate up and down, the lower sliding column is connected to the pressing beam, and the female die is arranged at the upper part of the lower sliding column;
the mechanism comprises a large adjusting gear, a large adjusting connecting threaded sleeve, a large number of filling cylinder pistons, a large number of filling cylinder body end plates, a large number of filling cylinder bodies and a large number of filling cylinder lower end covers, wherein the large number of filling cylinder body end plates are connected to the upper parts of the large number of filling cylinder bodies;
the stroke adjusting mechanism of the cylinder filling assemblies comprises an adjusting pinion, an adjusting worm, an adjusting transmission shaft, an adjusting supporting seat and an adjusting locking block, wherein the adjusting transmission shaft is arranged on the adjusting supporting seat, the adjusting worm is connected with the adjusting transmission shaft, the adjusting worm is in transmission connection with the adjusting pinion, the adjusting pinion and the adjusting gearwheel are in meshing transmission through a gear, and the adjusting locking block is arranged outside the adjusting transmission shaft and used for locking the adjusting transmission shaft.
Furthermore, the lower end covers of the filling cylinders are provided with internal threads, and the lower end covers of the filling cylinders are connected with the adjusting connecting threaded sleeves through threads.
Furthermore, the adjusting mechanism also comprises a digital position counter, and the digital position counter is connected with the adjusting transmission shaft.
Furthermore, the adjusting transmission shaft is connected with the encoder and an adjusting motor with self-locking and is intelligently controlled by a PLC controller.
The working process of the filling quantity adjusting mechanism of the double-demoulding-rod structure powder forming machine comprises the following steps;
(1) loosening the adjusting locking block 14, rotating the adjusting transmission shaft 12, selecting the adjusting amount according to the digital position display 15, and driving the adjusting pinion 10 to rotate by the adjusting worm 11 fixed on the adjusting transmission shaft 12;
(2) the adjusting small gear 10 drives the adjusting large gear 3 fixed on the adjusting connecting threaded sleeve 4 to rotate, and the adjusting connecting threaded sleeve 4 rotates along with the adjusting large gear 3;
(3) the adjusting connecting screw sleeve is connected with the lower end covers of the filling cylinders through screw threads, the lower end covers 9 of the filling cylinders rotate and move up and down, and the lower end covers of the filling cylinders move up and down to drive the positions of the lower end faces of the pistons of the filling cylinders, so that the movement stroke of the pistons of the filling cylinders is adjusted.
The invention has the beneficial effects that:
(1) according to the invention, through the innovative design of the adjusting mechanism of the multiple filling amount and the small filling amount of the double-demoulding-rod-structure powder forming machine, the adjustment of the multiple filling amount and the small filling amount in the filling process of different powder products is realized, the defect that the existing multiple and small filling strokes are fixed and cannot be adjusted is overcome, the capability of the double-demoulding-rod-structure powder forming machine for adapting to the press forming of different products is enhanced, and the precision index and the production efficiency of different formed products are improved;
(2) the mechanism is innovatively designed on the basis of the number of filling cylinders with original fixed strokes, is compact in design mechanism and small in occupied space, is matched with an original filling reset mechanism to finish an adjusting function, has no influence on other related mechanisms and control functions such as filling reset height, female die control and the like, and better ensures the final action effect of the number of filling functions;
(3) the mechanism adopts the transmission form of the worm and the adjusting pinion of the straight teeth for adjustment, and ensures that the adjusting pinion of the straight teeth can move up and down without being blocked when the adjusting coupling screw sleeve rotates to drive the adjusting large gear to adjust; meanwhile, the reverse transmission of the gear worm mechanism has self-locking property, free rotation generated after adjustment can be prevented from influencing the adjustment precision, and the accuracy and consistency of the adjustment of the filling stroke quantity are further ensured;
(4) the digital position counter is added at the adjusting end of the mechanism, the stroke size of the filling amount can be adjusted according to the specific requirements of product molding, and the intuitiveness of the adjusting process is further improved by quantizing the adjusting value. The encoder and the adjusting motor with the self-locking function can be connected subsequently, and the intelligent regulation and control function is realized through PLC programming control;
(5) the mechanism is designed to increase the function of the locking block, and the locking block is used for locking after the adjustment is completed, so that the position of the transmission shaft can be fixedly adjusted, the free rotation is limited, and the change of the stroke size caused by the vibration or other abnormal adjustment when the machine is used is prevented. The locking block is provided with a quick-tightening handle, so that a user can conveniently lock and loosen the locking block at any time, and the mechanism is simpler and more convenient to operate.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view showing the structure of the stroke adjustment mechanism of the multi-cylinder charging assembly.
In the figure, 1 is a pressing beam, 2 is a lower sliding column, 3 is an adjusting large gear, 4 is a connecting adjusting screw sleeve, 5 is a piston of a filling cylinder, 6 is a female die, 7 is a bed end plate of the filling cylinder, 8 is a cylinder body of the filling cylinder, 9 is a lower end cover of the filling cylinder, 10 is an adjusting small gear, 11 is an adjusting worm, 12 is an adjusting transmission shaft, 13 is an adjusting supporting seat, 14 is an adjusting locking block, and 15 is a digital position display.
Detailed Description
The device comprises a mechanism for adjusting the filling amount of a double-demoulding-rod-structure powder forming machine, wherein the adjusting mechanism comprises a pressing beam 1, a lower sliding column 2, a female die 6, a mechanism for adjusting the number of filling cylinders and a mechanism for adjusting the stroke of the assemblies of the number of filling cylinders;
the two ends of the pressing beam 1 are respectively connected with a reset cylinder, the pressing beam 1 is driven by the reset cylinders to reciprocate up and down, the lower sliding column 2 is connected to the pressing beam 1, and the female die 6 is arranged at the upper part of the lower sliding column 2;
the mechanism comprises an adjusting large gear 3, an adjusting connecting threaded sleeve 4, a plurality of filling cylinder pistons 5, a plurality of filling cylinder bed end plates 7, a plurality of filling cylinder bodies 8 and a plurality of filling cylinder lower end covers 9, wherein the plurality of filling cylinder bed end plates 7 are connected to the upper parts of the plurality of filling cylinder bodies 8, the plurality of filling cylinder lower end covers 9 are fixedly connected to the lower parts of the plurality of filling cylinder bodies 8, the plurality of filling cylinder pistons 5 are arranged on the inner sides of the plurality of filling cylinder bodies 8, the adjusting large gear 3 is fixed on the adjusting connecting threaded sleeve 4 and drives the adjusting connecting threaded sleeve 4 to rotate, and the adjusting connecting threaded sleeve 4 is connected to the plurality of filling cylinder lower end covers 9 and drives the plurality of filling cylinder lower end covers 9 to move up and down;
the stroke adjusting mechanism of the cylinder filling assemblies comprises an adjusting pinion 10, an adjusting worm 11, an adjusting transmission shaft 12, an adjusting supporting seat 13 and an adjusting locking block 14, wherein the adjusting transmission shaft 12 is arranged on the adjusting supporting seat 13, the adjusting worm 11 is connected with the adjusting transmission shaft 12, the adjusting worm 11 is in transmission connection with the adjusting pinion 10, the adjusting pinion 10 and the adjusting gearwheel 3 are in meshing transmission through gears, and the adjusting locking block 14 is arranged outside the adjusting transmission shaft 12 and used for locking the adjusting transmission shaft 12.
The lower end covers 9 of the filling cylinders are provided with internal threads, and the lower end covers 9 of the filling cylinders are connected with the adjusting connecting screw sleeve 4 through threads.
The adjusting mechanism further comprises a digital position counter 15, and the digital position counter 15 is connected with the adjusting transmission shaft 12.
The adjusting transmission shaft 12 is connected with an encoder and an adjusting motor with self-locking and is intelligently controlled by a PLC controller.
The working process of the filling quantity adjusting mechanism of the double-demoulding-rod structure powder forming machine comprises the following steps;
(1) loosening the adjusting locking block 14, rotating the adjusting transmission shaft 12, selecting the adjusting amount according to the digital position display 15, and driving the adjusting pinion 10 to rotate by the adjusting worm 11 fixed on the adjusting transmission shaft 12;
(2) the adjusting small gear 10 drives the adjusting large gear 3 fixed on the adjusting connecting threaded sleeve 4 to rotate, and the adjusting connecting threaded sleeve 4 rotates along with the adjusting large gear 3;
(3) the adjusting connecting screw sleeve is connected with the lower end covers of the filling cylinders through screw threads, the lower end covers 9 of the filling cylinders rotate and move up and down, and the lower end covers of the filling cylinders move up and down to drive the positions of the lower end faces of the pistons of the filling cylinders, so that the movement stroke of the pistons of the filling cylinders is adjusted.
The working principle and the process of the invention are as follows: the pressing beam 1 is reset upwards under the action of the reset cylinders at the two sides, the lower sliding column 2 is driven to push the female die 6 on the die carrier to move upwards, and when the pressing beam 1 moves upwards to the position where the lower end face of the filling cylinder piston 5 is blocked by the lower sliding column, the filling action is finished. On one hand, if the number of filling cylinders moves to enable the number of filling cylinder pistons 5 to move downwards for a stroke, the pressing beam 1 drives the lower sliding column 2 to further drive the female die 6 to move downwards, powder in the die cavity is pushed out of the die cavity by the fixed lower punch to form a multi-filling state, and the excessive powder is taken away by the material shoe which is retracted and reset; on the other hand, if the filling cylinder 8 is moved in advance before the upward filling resetting action of the pressing beam 1 to move the filling cylinder piston 5 downwards by a stroke, the pressing beam 1 moves upwards and is blocked by the lower end surface of the filling cylinder piston 5 in advance, the powder filling and material shoe resetting actions are finished, and the filling cylinder 8 is reversed again to move upwards, the female die 6 is moved upwards again by a stroke under the driving of the pressing beam 1 controlled by the resetting cylinder, so that the low-filling state of the empty powder at the stroke height is formed in the die cavity.
The required filling amount is adjusted by adjusting the movement stroke of the piston 5 of each filling cylinder to block the change of the upward filling reset height distance of the pressing beam 1, namely, an adjusting transmission shaft 12 arranged on an adjusting supporting seat 13 rotates to drive an adjusting worm 11 and an adjusting pinion 10 to rotate, the adjusting pinion 10 is fixed on the lower end cover 9 of each filling cylinder through a rotatable device, the lower end cover 9 of each filling cylinder is fixed on the cylinder body 8 of each filling cylinder, and the cylinder body 8 of each filling cylinder is fixed on the bed end plate of each filling cylinder. The adjusting small gear 10 rotates to drive the adjusting large gear 3 to rotate, the adjusting large gear 3 is fixed on the adjusting connecting threaded sleeve 4 and drives the adjusting connecting threaded sleeve to rotate, the fixed lower end cover 9 of each filling cylinder is provided with internal threads, the adjusting connecting threaded sleeve 4 is driven to rotate on the lower end cover 9 of each filling cylinder and enables the lower end cover to move up and down, and therefore the piston movement stroke of each filling cylinder consisting of the number of the filling cylinder bodies 8 and the number of the filling cylinder pistons 5 is changed in size due to the up and down movement of the adjusting connecting threaded sleeve 4, and the function of a filling amount filling adjusting mechanism with the adjustable large filling amount and the small filling amount is achieved.
During adjustment, the digital position display 15 displays the adjustment amount in real time, and after adjustment is completed, the adjustment locking block 14 locks the adjustment amount to prevent the adjustment value from changing. Furthermore, an adjusting motor and an encoder can be added at two ends of the adjusting transmission shaft 12, and programming control is carried out through a PLC (programmable logic controller) so as to realize intelligent regulation.
When the adjustment work is implemented, an adjusting locking block 14 is loosened (when the electric adjustment is adopted, a self-locking adjusting motor is used), an adjusting transmission shaft 12 is rotated, the adjustment amount is selected according to a digital position display 15, an adjusting worm 11 fixed on the adjusting transmission shaft 12 drives an adjusting pinion 10 to rotate, the adjusting pinion 10 drives an adjusting large gear 3 fixed on an adjusting connecting threaded sleeve 4 to rotate, the adjusting connecting threaded sleeve 4 rotates along with the adjusting large gear 3 and rotates on the lower end covers 9 of the filling cylinders matched with the adjusting connecting threaded sleeve 4 in a threaded mode, the adjusting connecting threaded sleeve 4 moves up and down due to the fact that the lower end covers 9 of the filling cylinders are fixed, and the movement stroke of the filling cylinders formed by the filling cylinder bodies 8 and the filling cylinder pistons 5 is increased or reduced. After the adjustment is finished, the adjusting locking block 14 is locked, and the adjustment of the large filling amount and the small filling amount is finished.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. What filling amount adjustment mechanism of two ejector pin structure powder forming machine, its characterized in that: the adjusting mechanism comprises a pressing beam, a lower sliding column, a female die, a mechanism for adjusting the number of filling cylinders and a mechanism for adjusting the stroke of the assemblies of the number of filling cylinders;
the two ends of the pressing beam are respectively connected with a reset cylinder, the pressing beam is driven by the reset cylinder to reciprocate up and down, the lower sliding column is connected to the pressing beam, and the female die is arranged at the upper part of the lower sliding column;
the mechanism comprises a large adjusting gear, a large adjusting connecting threaded sleeve, a large number of filling cylinder pistons, a large number of filling cylinder body end plates, a large number of filling cylinder bodies and a large number of filling cylinder lower end covers, wherein the large number of filling cylinder body end plates are connected to the upper parts of the large number of filling cylinder bodies;
the stroke adjusting mechanism of the cylinder filling assemblies comprises an adjusting pinion, an adjusting worm, an adjusting transmission shaft, an adjusting supporting seat and an adjusting locking block, wherein the adjusting transmission shaft is arranged on the adjusting supporting seat, the adjusting worm is connected with the adjusting transmission shaft, the adjusting worm is in transmission connection with the adjusting pinion, the adjusting pinion and the adjusting gearwheel are in meshing transmission through a gear, and the adjusting locking block is arranged outside the adjusting transmission shaft and used for locking the adjusting transmission shaft.
2. The mechanism for adjusting the filling amount of a powder molding machine having a double ejector pin structure according to claim 1, wherein: the lower end covers of the filling cylinders are provided with internal threads, and the lower end covers of the filling cylinders are connected with the adjusting connecting screw sleeves through threads.
3. The mechanism for adjusting the filling amount of a powder molding machine having a double ejector pin structure according to claim 1, wherein: the adjusting mechanism further comprises a digital position counter, and the digital position counter is connected with the adjusting transmission shaft.
4. The mechanism for adjusting the filling amount of a powder molding machine having a double ejector pin structure according to claim 4, wherein: the adjusting transmission shaft is connected with the encoder and the adjusting motor with self-locking and is intelligently controlled by the PLC.
5. The working process of the filling amount adjusting mechanism of the double-demoulding-rod structure powder forming machine is characterized in that: comprises the following steps;
(1) loosening the adjusting locking block 14, rotating the adjusting transmission shaft 12, selecting the adjusting amount according to the digital position display 15, and driving the adjusting pinion 10 to rotate by the adjusting worm 11 fixed on the adjusting transmission shaft 12;
(2) the adjusting small gear 10 drives the adjusting large gear 3 fixed on the adjusting connecting threaded sleeve 4 to rotate, and the adjusting connecting threaded sleeve 4 rotates along with the adjusting large gear 3;
(3) the adjusting connecting screw sleeve is connected with the lower end covers of the filling cylinders through screw threads, the lower end covers 9 of the filling cylinders rotate and move up and down, and the lower end covers of the filling cylinders move up and down to drive the positions of the lower end faces of the pistons of the filling cylinders, so that the movement stroke of the pistons of the filling cylinders is adjusted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618644.3A CN114311813A (en) | 2021-12-27 | 2021-12-27 | Mechanism for adjusting filling amount of powder forming machine with double-demoulding-rod structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111618644.3A CN114311813A (en) | 2021-12-27 | 2021-12-27 | Mechanism for adjusting filling amount of powder forming machine with double-demoulding-rod structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000202697A (en) * | 1999-01-19 | 2000-07-25 | Japan Nuclear Fuel Co Ltd<Jnf> | Compacting machine |
| CN1669784A (en) * | 2005-03-17 | 2005-09-21 | 严培义 | Filling regulating and limiting device for powder forming machine |
| CN2858261Y (en) * | 2005-12-23 | 2007-01-17 | 严培义 | Bed die floating regulating mechanism of powder forming machine |
| CN101913266A (en) * | 2010-07-14 | 2010-12-15 | 宁波国兴粉末冶金设备制造有限公司 | Double upper-inner impacting stroke adjusting device of powder forming machine |
| CN218857763U (en) * | 2021-12-27 | 2023-04-14 | 扬州市海力精密机械制造有限公司 | Excessive and insufficient filling adjusting mechanism for powder forming machine with double-demoulding-rod structure |
-
2021
- 2021-12-27 CN CN202111618644.3A patent/CN114311813A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000202697A (en) * | 1999-01-19 | 2000-07-25 | Japan Nuclear Fuel Co Ltd<Jnf> | Compacting machine |
| CN1669784A (en) * | 2005-03-17 | 2005-09-21 | 严培义 | Filling regulating and limiting device for powder forming machine |
| CN2858261Y (en) * | 2005-12-23 | 2007-01-17 | 严培义 | Bed die floating regulating mechanism of powder forming machine |
| CN101913266A (en) * | 2010-07-14 | 2010-12-15 | 宁波国兴粉末冶金设备制造有限公司 | Double upper-inner impacting stroke adjusting device of powder forming machine |
| CN218857763U (en) * | 2021-12-27 | 2023-04-14 | 扬州市海力精密机械制造有限公司 | Excessive and insufficient filling adjusting mechanism for powder forming machine with double-demoulding-rod structure |
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