CN109895441B - Lower oil cylinder adjusting device of multi-step multilayer dry powder product full-automatic forming hydraulic press - Google Patents
Lower oil cylinder adjusting device of multi-step multilayer dry powder product full-automatic forming hydraulic press Download PDFInfo
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- CN109895441B CN109895441B CN201910205648.5A CN201910205648A CN109895441B CN 109895441 B CN109895441 B CN 109895441B CN 201910205648 A CN201910205648 A CN 201910205648A CN 109895441 B CN109895441 B CN 109895441B
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Abstract
The invention relates to a lower oil cylinder adjusting device of a multi-step multilayer dry powder product full-automatic forming hydraulic press, wherein the lower oil cylinder is a double-output oil cylinder and comprises a powder sinking device; the powder sinking device is a powder sinking cylinder and comprises a cylinder body, a piston head and a pressing cap, the cylinder body is sleeved at the tail end of a lower piston rod of a lower oil cylinder, the piston head is arranged in the cylinder body and sleeved on the lower piston rod of the lower oil cylinder, the piston head is respectively in sliding sealing contact with the cylinder body and the lower piston rod of the lower oil cylinder, the pressing cap is arranged at the upper end of the cylinder body and is positioned above the piston head to form upper limit of the piston head; the lower piston rod of the lower oil cylinder is also sleeved with a lower limiting block and a lower adjusting seat, the lower limiting block and the lower adjusting seat are in sliding fit with the lower piston rod of the lower oil cylinder, the lower limiting block is supported on the lower adjusting seat, and the lower adjusting seat is supported on the piston head; and the lower limiting block forms ejection limiting of the lower oil cylinder. By utilizing the powder sinking, the splashing of thin-layer powder at the periphery of the female die opening is effectively prevented when the upper die punches downwards.
Description
Technical Field
The invention relates to the technical field of dry powder product forming, in particular to a lower oil cylinder adjusting device of a multi-step multi-layer full-automatic dry powder product forming hydraulic press.
Background
A full-automatic forming hydraulic machine in the prior art is generally provided with a multi-step die carrier on a three-beam four-column hydraulic machine. When the upper die punches downwards, thin-layer powder at the periphery of the female die port splashes, so that the uniform density of a product is influenced.
The method is as follows: CN201410444379.5 proposes a full-automatic multi-step powder product forming hydraulic press with five beams and four columns; the above problems have not been solved.
Disclosure of Invention
The invention provides a lower oil cylinder adjusting device of a multi-step full-automatic forming hydraulic press for multilayer dry powder products, which effectively prevents thin-layer powder from splashing around a female die opening when an upper punch moves downwards by utilizing powder sinking.
The technical scheme of the invention is as follows:
a lower oil cylinder adjusting device of a multi-step multilayer dry powder product full-automatic forming hydraulic machine is characterized in that a lower oil cylinder of the multi-step multilayer dry powder product full-automatic forming hydraulic machine is a double-output oil cylinder and comprises a powder sinking device; the powder sinking device is a powder sinking cylinder and comprises a cylinder body, a piston head and a pressing cap, the cylinder body is sleeved at the tail end of a lower piston rod of a lower oil cylinder, the piston head is arranged in the cylinder body and sleeved on the lower piston rod of the lower oil cylinder, the piston head is respectively in sliding sealing contact with the cylinder body and the lower piston rod of the lower oil cylinder, the pressing cap is arranged at the upper end of the cylinder body and is positioned above the piston head to form upper limit of the piston head; the lower piston rod of the lower oil cylinder is also sleeved with a lower limiting block and a lower adjusting seat, the lower limiting block and the lower adjusting seat are in sliding fit with the lower piston rod of the lower oil cylinder, the lower limiting block is supported on the lower adjusting seat, and the lower adjusting seat is supported on the piston head and is fixedly connected with the piston head; and the lower limiting block forms ejection limiting of the lower oil cylinder.
When powder is added, the piston head of the powder sinking cylinder drives the lower adjusting seat to move upwards to drive the adjusting screw rod to move upwards and push the upper limiting block to move upwards, then the lower oil cylinder acts, and the upper limiting block is supported on the lower oil cylinder; after powder is added, the piston head of the powder sinking cylinder drives the lower adjusting seat to move downwards to drive the adjusting screw rod to move downwards, the lower piston rod of the lower oil cylinder moves upwards, the upper piston rod of the lower oil cylinder moves upwards, and the female die on the lower piston beam moves upwards, so that powder in the female die cavity sinks, and then powder does not exist in the female die opening when the upper die punch moves downwards during pressing, and therefore thin-layer powder on the periphery of the female die opening cannot splash.
The technical proposal is further improved and refined, and the device also comprises a lower oil cylinder ejection adjusting device; the lower oil cylinder ejection adjusting device comprises an ejection adjusting hand wheel, an adjusting rod, an adjusting gear and an adjusting screw rod, the adjusting hand wheel is installed on a lower cross beam of the multi-step multilayer dry powder product full-automatic forming hydraulic machine through a rotating shaft, the rotating shaft is meshed and connected with the adjusting rod through a bevel gear, the adjusting rod vertically penetrates through the lower cross beam to extend out and is sleeved with the adjusting gear, the adjusting rod is in rotary contact with the lower cross beam, the adjusting gear is meshed and connected with the adjusting screw rod, and the adjusting screw rod is sleeved on the lower adjusting seat and is in threaded connection with the lower adjusting; the lower limit block of the multi-step multilayer dry powder product full-automatic molding hydraulic press forms ejection limit of the lower oil cylinder; the lower adjusting seat is provided with a pin hole, a positioning pin is arranged in the pin hole, the positioning pin is connected with the lower adjusting seat and a lower piston rod of the lower oil cylinder through a pin, and a gap is reserved between the pin hole and the positioning pin.
The ejection adjusting hand wheel is rotated, the ejection adjusting hand wheel drives the adjusting rod to rotate through the rotating shaft, the adjusting gear rotates to drive the adjusting screw to rotate and move up and down along the lower piston rod of the lower oil cylinder, and therefore the limiting height of the lower limiting block is adjusted, and ejection limiting adjustment of the lower oil cylinder is achieved.
The technical proposal is further improved and refined, and the device also comprises a lower oil cylinder return adjusting device; the lower oil cylinder return adjusting device comprises a worm wheel, a worm, an upper adjusting seat and a limiting block, wherein the worm is fixedly arranged on the lower cross beam and is meshed with the worm wheel; the limiting block forms the return limiting of the lower oil cylinder.
The worm is rotated to drive the turbine to rotate horizontally, so that the upper adjusting seat is driven to move up and down along the upper piston rod of the lower oil cylinder, the limiting height of the limiting block is adjusted, and the return limiting adjustment of the lower oil cylinder is realized.
The technical scheme is further improved and refined, the multi-step multilayer dry powder product full-automatic forming hydraulic machine comprises four upright posts, an upper crossbeam, an upper movable beam, a lower movable beam and a lower crossbeam which are arranged in parallel in the vertical direction, wherein the upper crossbeam, the upper movable beam, the lower movable beam and the lower crossbeam are sequentially arranged from top to bottom, the four upright posts respectively correspond to and penetrate through holes in four corners of the upper crossbeam, the upper movable beam, the lower movable beam and the lower crossbeam, the upper movable beam, the lower movable beam and the four upright posts are in precise sliding fit and slide up and down along the four upright posts, the upper crossbeam is fixedly connected with the four upright posts, and the lower crossbeam is fixedly connected with the four upright posts.
An upper oil cylinder is arranged on the upper cross beam, a piston rod of the upper oil cylinder is fixedly connected with the upper movable beam, and the upper oil cylinder drives the upper movable beam to slide up and down along the four upright posts.
And an upper template is arranged at the bottom of the upper movable beam.
And a female die hole for mounting a female die is formed in the central position of the lower movable beam, a female die pressing plate for pressing the female die is arranged on the upper part of the female die hole, and an automatic feeding device is arranged on the lower movable beam.
The lower beam is provided with a lower oil cylinder, an upper piston rod of the lower oil cylinder is provided with a lower oil cylinder return adjusting device and is fixedly connected with a lower template through a lower connecting plate, four corners of the lower template are respectively provided with a lower guide post, the lower guide posts respectively penetrate through a floating template and a fixed template which are arranged between the lower movable beam and the lower beam and are fixedly connected with the lower movable beam, the lower oil cylinder drives the lower movable beam to slide up and down along four upright posts, the floating template, the fixed template and the lower guide posts are in precise sliding fit, the lower beam is provided with a pair of supporting plates with equal height, the supporting plates are supported and connected with the fixed template, a lower die holder is arranged between the fixed template and the floating template, the lower die holder and the fixed template are connected into a whole and form return limit of the floating template, a die slot is arranged on the lower die holder, a secondary feeding floating plate is arranged, a piston rod of the secondary feeding cylinder penetrates through the lower die base and is fixedly connected with the secondary feeding floating plate to drive the secondary feeding floating plate to float, the floating cylinder is fixedly mounted on the fixed die plate, the piston rod of the floating cylinder is fixedly connected with the floating die plate to drive the floating die plate to slide up and down along the lower guide pillar, and a through hole is formed in the center of the floating die plate.
The process for pressing the multi-step dry powder product comprises the following steps:
(1) die mounting
An upper punch for pressing a product to be pressed is arranged on an upper template, an inner lower punch is arranged on a secondary floating plate, an outer lower floating punch is arranged on a floating template, a female die is arranged in a female die hole, and the tops of the female die, the inner lower punch and the outer lower floating punch are parallel and level when the female die is at an initial position.
(2) Charging of
The lower oil cylinder drives the lower movable beam to move upwards, the female die moves upwards to form the feeding height of the inner lower punch, the floating cylinder drives the floating die plate to move upwards, the outer lower floating punch moves upwards to form the feeding height of the outer lower floating punch, namely the feeding position, and the automatic feeding device feeds powder into the female die cavity.
(3) Pressing
The upper oil cylinder drives the upper die plate installed on the upper movable beam to move the upper punch downwards to enter a female die opening, the powder filled in the female die cavity is sealed, the upper punch continues to press downwards under the action of the upper oil cylinder, and meanwhile, the female die and the outer lower floating punch respectively move downwards under the action of the lower oil cylinder and the floating cylinder, so that the inner lower punch relatively moves upwards and presses upwards, and the upper punch and the inner lower punch float and press under the bidirectional counter-pressure acting force to a set forming position, pressure maintaining and pressure relief are realized, and a product is formed by pressing.
(4) Demoulding
The upper oil cylinder drives the upper movable beam to move upwards to drive the upper punch return stroke, meanwhile, the lower oil cylinder drives the lower movable beam to move downwards, the female die moves downwards, the floating cylinder drives the floating template to move downwards, the outer lower floating punch moves downwards until the tops of the female die, the inner lower punch and the outer lower floating punch are parallel and level, namely, a demoulding position, product demoulding is realized, and one process action cycle is finished; and finishing the pressing of the multi-step dry powder product.
The process for pressing two layers of dry powder products comprises the following steps:
(1) die mounting
An upper punch for pressing a product to be pressed is arranged on an upper template, a lower punch is arranged on a secondary floating plate, a female die is arranged in a female die hole, and the tops of the female die and the lower punch are parallel and level when the female die is initially positioned.
(2) Charging of
The lower oil cylinder drives the lower movable beam to move upwards, the female die moves upwards, the secondary feeding cylinder drives the secondary floating plate to move upwards, the lower punch moves upwards to form the primary feeding height of the lower punch, the automatic feeding device sends the first powder into the female die cavity, the upper oil cylinder drives the upper die plate mounted on the upper movable beam to move the upper punch downwards to enter the female die orifice, the powder material filled into the female die cavity is simultaneously subjected to 'die sealing', and after the prepressing is finished, the upper oil cylinder drives the upper movable beam to move upwards to drive the upper punch to return; the secondary feeding cylinder drives the secondary floating plate to move downwards, the lower punch returns to form the secondary feeding height of the lower punch, and the automatic feeding device sends the second powder into the female die cavity.
(3) Pressing
The upper oil cylinder drives the upper die plate installed on the upper movable beam to drive the upper die punch to move downwards to enter the female die opening, the second powder filled in the female die cavity is pre-pressed while die sealing, after the pre-pressing is completed, the upper die punch continues to be pressed downwards under the action of the upper oil cylinder, and the female die moves downwards under the action of the lower oil cylinder, so that the lower die punch relatively moves upwards and presses upwards, the two-way counter-pressure acting force of the upper die punch and the inner lower die punch floats and presses to a set forming position, pressure maintaining and pressure relief are realized, and a product is formed by pressing.
(4) Demoulding
The upper oil cylinder drives the upper movable beam to move upwards to drive the upper die to return, meanwhile, the lower oil cylinder drives the lower movable beam to move downwards, the female die moves downwards until the tops of the female die and the lower die are flush, namely a demolding position, product demolding is realized, and a process action cycle is finished; the compression of the two layers of dry powder product is completed.
Of course, the hydraulic press can also be used for pressing multiple layers of products with different dry powders, and only the secondary floating template needs to float downwards for multiple times and then the different dry powders are added in sequence; even multiple layers of products with different dry powders are matched with the outer lower die arranged on the floating template in a punching way.
The invention has the advantages of reasonable design and simple structure, and effectively prevents the thin powder layer around the female die from splashing when the upper punch moves downwards by utilizing the powder sinking.
Drawings
FIG. 1 is a schematic structural diagram of a multi-step multi-layer dry powder product full-automatic molding hydraulic press.
Fig. 2 is a partial structure schematic diagram (on) of a multi-step multi-layer dry powder product full-automatic molding hydraulic machine.
Fig. 3 is a partial structure schematic diagram (below) of a multi-step multi-layer dry powder product full-automatic molding hydraulic machine.
Fig. 4 is an enlarged structure diagram of the forming limit of the floating template.
Fig. 5 is a schematic structural diagram of the limit fine-tuning device and the limit adjusting device.
Fig. 6 is a schematic structural view of the lower cylinder retraction adjusting device.
Fig. 7 is a schematic structural diagram of the lower cylinder ejection adjusting device.
In the figure, an upper movable beam 1, an upper movable beam 2, a lower movable beam 3, a lower beam 4, an upright post 5, an oil cylinder 6 limit adjusting device 7, a limit fine-adjustment device 8, an upper connecting plate 9, an upper die plate 10, a female die pressing plate 12, a feeding plate 13, an automatic feeding device 14, a lower oil cylinder 15, a return adjusting device 16, a lower connecting plate 18, a lower die plate 18, a lower oil cylinder 15, a floating die 20, a fixed die plate 21, a supporting plate 23, a lower die seat 24, a secondary feeding floating plate 25, a secondary feeding cylinder 26, a secondary feeding ejection adjusting screw 27, a lower central cylinder 29, a floating cylinder 30, a limit adjusting nut 31, a limit adjusting nut 32, a pre-pressing adjusting nut 33, an upper bottom plate 35, a fine-adjustment inclined plate 37, an upper cylinder sliding plate 38, an upper cylinder 40 limit adjusting block 39, a lower cylinder The block 48 ejection adjusting hand wheel 49 adjusts the rod 50, adjusts the gear 51, adjusts the screw 52, adjusts the lower limit block 53, the powder sinking device 54, the cylinder 55, the piston head 56, the lower adjusting seat 57, the lower fine adjusting inclined plate 59 and the guide rod 60.
Detailed Description
As shown in fig. 1-7, a multi-step full-automatic molding hydraulic press for multilayer dry powder products comprises a main body, wherein the main body comprises four upright posts 5, an upper cross beam 1, an upper movable beam 2, a lower movable beam 3 and a lower cross beam 4 which are arranged in parallel in the vertical direction, the upper cross beam 1, the upper movable beam 2, the lower movable beam 3 and the lower cross beam 4 are arranged in sequence from top to bottom, the four upright posts 5 respectively correspond to and penetrate through holes in four corners of the upper cross beam 1, the upper movable beam 2, the lower movable beam 3 and the lower cross beam 4, the upper movable beam 2, the lower movable beam 3 and the four upright posts 5 are in precise sliding fit and slide up and down along the four upright posts 5, the upper cross beam 1 is fixedly connected with the four upright posts 5 through upper adjusting nuts and upper locking nuts, and the lower cross beam 4 is fixedly connected with the four upright posts 5 through lower adjusting nuts and lower locking nuts; an upper oil cylinder 6 is arranged on the upper cross beam 1, the upper oil cylinder 6 is a double-piston rod oil cylinder, a limit fine-adjustment device 8 and a limit adjustment device 7 are respectively arranged on an upper piston rod of the upper oil cylinder 6, and a lower piston rod of the upper oil cylinder 6 is fixedly connected with the upper movable beam 2 through an upper connecting plate 9; the upper oil cylinder 6 drives the upper movable beam 2 to slide up and down along the four upright posts 5; an upper template 10 is arranged at the bottom of the upper movable beam 2; a female die hole 11 for mounting a female die is formed in the center of the lower movable beam 3, a female die pressing plate 12 for pressing the female die is arranged on the upper portion of the female die hole 11, a feeding plate 13 is further arranged on the upper plane of the lower movable beam 3, and an automatic feeding device 14 is arranged on the feeding plate 13; the lower cross beam 4 is provided with a lower oil cylinder 15, the lower oil cylinder 15 is a double-piston rod oil cylinder, an upper piston rod of the lower oil cylinder 15 is provided with a lower oil cylinder return adjusting device 16 and is fixedly connected with a lower template 18 through a lower connecting plate 17, four corners of the lower template 18 are respectively provided with a lower guide pillar 19, the lower guide pillars 19 respectively penetrate through a floating template 20 and a fixed template 21 which are arranged between the lower movable beam 3 and the lower cross beam 4 and are fixedly connected with the lower movable beam 3, the lower oil cylinder 15 drives the lower movable beam 3 to slide up and down along four upright posts 5, the floating template 20, the fixed template 21 and the lower guide pillars 19 are in precise sliding fit, and a lower oil cylinder ejection adjusting device 22 is arranged on the lower piston rod of the lower oil cylinder 15; a supporting plate 23 with equal height is arranged on the lower cross beam 4, the supporting plate 23 is supported and connected with a fixed template 21, a lower die base 24 is arranged between the fixed template 21 and a floating template 20, the lower die base 24 and the fixed template 21 are connected into a whole and form the return limit of the floating template 20, a die cavity is arranged on the lower die base 24, a secondary feeding floating plate 25 is arranged in the die cavity, a secondary feeding cylinder 26 is arranged in the middle of the fixed template 21, the secondary feeding cylinder 26 is a double-discharging piston rod oil cylinder, the upper end of an upper discharging piston rod of the secondary feeding cylinder 26 penetrates through the lower die base 24 and is fixedly connected with the secondary feeding floating plate 25 to drive the secondary feeding floating plate 25 to float, and a secondary feeding ejection adjusting screw 27 is arranged on the lower discharging piston rod of the secondary feeding cylinder 26; a core rod connecting rod 28 is arranged in a piston rod of the secondary feeding cylinder 26, the upper end of the core rod connecting rod 28 penetrates through the secondary feeding floating plate 25, the lower end of the core rod connecting rod 28 penetrates through the lower connecting plate 17 to be connected with a piston rod of a lower central cylinder 29 arranged at the center position of an upper piston rod of the lower oil cylinder 15, and the lower central cylinder 29 drives the core rod connecting rod 28 to move up and down; the fixed template 21 is fixedly provided with a floating cylinder 30, a piston rod of the floating cylinder 30 is fixedly connected with the floating template 21, the floating template 21 is driven to slide up and down along the lower guide pillar 19, and the center of the floating template 21 is provided with a through hole; the limiting adjusting device 7 comprises a limiting locking nut 31, a limiting adjusting nut 32, a pre-pressing locking nut 33 and a pre-pressing adjusting nut 34, wherein the limiting locking nut 31 and the limiting adjusting nut 32 are sequentially sleeved on a piston rod, which is arranged on the upper oil cylinder 6, from top to bottom and are in threaded fit connection, and the pre-pressing locking nut 33 and the pre-pressing adjusting nut 34 are sequentially sleeved on the limiting adjusting nut 34 from top to bottom and are in threaded fit connection; the limiting fine-adjustment device 8 comprises an upper bottom plate 35, an upper fine-adjustment inclined plate 37, an upper side cylinder sliding plate 38, an upper limiting block 39 and an upper side cylinder 40, wherein the upper bottom plate 35 is sleeved on an upper piston rod of the upper oil cylinder 6 and is fixedly connected with a cylinder body of the upper oil cylinder 6, the upper side cylinder sliding plate 38 is sleeved on the upper piston rod of the upper oil cylinder 6 and is positioned above the upper bottom plate 35, the upper bottom plate 35 is fixedly connected with the upper side cylinder sliding plate 38 through a fixing plate 41, the upper fine-adjustment inclined plate 37 is arranged between the upper side cylinder sliding plate 38 and the upper bottom plate 35, the upper fine-adjustment inclined plate 37 is formed by an upper inclined plate and a lower inclined plate which are oppositely arranged, a gap for the upper inclined plate to move up and down is reserved between the upper inclined plate and the upper side cylinder sliding plate 38, the upper piston rod of the upper oil cylinder 6 passes through a hole arranged between the upper inclined plate and the lower inclined plate, the hole in the middle of the upper inclined plate is a, the first adjusting rod is connected with the lower inclined plate, the adjusting rod is rotated to drive the lower inclined plate to move in the horizontal direction, the lower inclined plate drives the upper inclined plate to axially rise and fall along a piston rod on the upper oil cylinder 6, a gap for the lower end of the limiting adjusting nut 34 to pass through is reserved between the upper cylinder sliding plate 38 and an upper output piston rod of the upper oil cylinder 6, and the upper limiting block 39 is fixedly arranged on the upper cylinder sliding plate 38 through the upper cylinder 40 and driven to move by the upper cylinder 40; the limit adjusting nut 34 and the upper fine-tuning inclined plate 37 jointly form ejection limit of the upper oil cylinder 6; the upper limiting block 39 moves to the position below the pre-pressing adjusting nut 32 to form pre-pressing limiting of the upper oil cylinder 6 together with the pre-pressing adjusting nut 32; the lower die holder 24 is a rectangular body, the lower part of the lower die holder is provided with a horizontal square hole, a lower fine-adjustment inclined plate 59 is arranged in the square hole, the lower fine-adjustment inclined plate 59 is formed by an upper inclined plate and a lower inclined plate which are oppositely arranged, an upper output piston rod of the secondary feeding cylinder 26 respectively penetrates through holes formed in the middles of the upper inclined plate and the lower inclined plate, the hole in the middle of the upper inclined plate is a circular hole, the hole in the middle of the lower inclined plate is a waist-shaped hole, a second adjusting rod is fixedly arranged on one side of the fixed die plate 21 through a fixing plate and is connected with the lower inclined plate, a limiting adjusting block 42 is fixedly arranged on the upper inclined plate, a lower limiting block 44 is fixedly arranged on the floating die plate 20 through a lower side cylinder 43, and the lower side cylinder 43 pushes; the lower limit block 44 moves to the position above the limit adjusting block 42 to form forming limit of the floating template 20 together with the limit adjusting block 42; the lower oil cylinder return adjusting 16 device comprises a worm gear 45, a worm gear 46, an upper adjusting seat 47 and a limiting block 48, wherein the worm gear 46 is fixedly installed on the lower cross beam 4 and is meshed with the worm gear 45, the worm gear 45 is sleeved on the upper adjusting seat 47 and is in threaded connection with the upper adjusting seat 47, the upper adjusting seat 47 is sleeved on an upper piston rod of the lower oil cylinder 15, a plurality of guide rods 60 are arranged in the upper adjusting seat 47, the guide rods 60 are fixedly connected with the lower cross beam 4, the worm gear 45 drives the upper adjusting seat 47 to move up and down along the upper piston rod of the lower oil cylinder 15 in a rotating mode, and the limiting block 48 is sleeved on the upper piston rod of the lower oil cylinder 15 and is located between the upper adjusting seat 47 and the lower connecting plate 17 to move; the limit block 48 forms a return limit of the lower oil cylinder 15; the lower oil cylinder ejection adjusting device 22 comprises an ejection adjusting hand wheel 49, an adjusting rod 50, an adjusting gear 51, an adjusting screw rod 52 and a lower limiting block 53, wherein the ejection adjusting hand wheel 49 is fixedly arranged on the lower cross beam 4, is in driving connection with a rotating shaft and is in meshing connection with the adjusting rod 50 through a bevel gear, the adjusting rod 50 vertically penetrates through the lower cross beam 4 to extend out and is sleeved with the adjusting gear 51, the adjusting rod 50 is in rotating contact with the lower cross beam 4, the adjusting gear 51 is in meshing connection with the adjusting screw rod 52, and the lower limiting block 53 is sleeved on a lower ejection piston of the lower oil cylinder 15 and is supported on the adjusting screw rod 52; the lower limit block 53 forms the ejection limit of the lower oil cylinder 15; the powder sinking device 54 is also arranged on the lower piston rod of the lower oil cylinder 15, the powder sinking device 54 is a powder sinking cylinder and comprises a cylinder body 55, a piston head 56 and a pressing cap 57, the cylinder body 55 is sleeved at the tail end of the lower piston rod of the lower oil cylinder 15 and is fixedly connected with the lower piston rod of the lower oil cylinder 15 through a splicing nut and a locking nut, the piston head 56 is arranged in the cylinder body 55 and is sleeved on the lower piston rod of the lower oil cylinder 15, the piston head 56 is respectively in sliding sealing contact with the cylinder body 55 and the lower piston rod of the lower oil cylinder 15, the upper end of the cylinder body 55 is provided with the pressing cap 57, and the pressing cap 57 is positioned above the piston head 56 to form upper limit of the piston head 56; a lower adjusting seat 58 is sleeved on a lower piston rod of the lower oil cylinder 15, the lower adjusting seat 58 is supported on the piston head 52 and is fixedly connected with the piston head 52, the lower adjusting seat 58 is in sliding fit with the lower piston rod of the lower oil cylinder 15, a pin hole is formed in the lower adjusting seat 58, a positioning pin is arranged in the pin hole, the positioning pin is connected with the lower adjusting seat 58 and the lower piston rod of the lower oil cylinder 15, and a gap is reserved between the pin hole and the positioning pin; the adjusting screw rod 52 is sleeved on the lower adjusting seat 58 and is in threaded connection with the lower adjusting seat 58; and a pair of machine legs is fixedly arranged at the bottom of the lower cross beam 4.
Because of the limited character expression, there exist practically unlimited specific structures, and it will be apparent to those skilled in the art that a number of improvements, decorations, or changes may be made without departing from the principles of the present invention, or the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (1)
1. A lower oil cylinder adjusting device of a multi-step multilayer dry powder full-automatic forming hydraulic machine is characterized by comprising a powder sinking device, a lower oil cylinder ejection adjusting device and a lower oil cylinder return adjusting device, wherein the lower oil cylinder of the multi-step multilayer dry powder full-automatic forming hydraulic machine is a double-output oil cylinder;
the powder sinking device is a powder sinking cylinder and comprises a cylinder body, a piston head and a pressing cap, the cylinder body is sleeved at the tail end of a lower piston rod of a lower oil cylinder, the piston head is arranged in the cylinder body and sleeved on the lower piston rod of the lower oil cylinder, the piston head is respectively in sliding sealing contact with the cylinder body and the lower piston rod of the lower oil cylinder, the pressing cap is arranged at the upper end of the cylinder body and is positioned above the piston head to form upper limit of the piston head; the lower piston rod of the lower oil cylinder is also sleeved with a lower limiting block and a lower adjusting seat, the lower limiting block and the lower adjusting seat are in sliding fit with the lower piston rod of the lower oil cylinder, the lower limiting block is supported on the lower adjusting seat, and the lower adjusting seat is supported on the piston head and is fixedly connected with the piston head; the lower limit block forms ejection limit of the lower oil cylinder;
the lower oil cylinder ejection adjusting device comprises an ejection adjusting hand wheel, an adjusting rod, an adjusting gear and an adjusting screw rod, the adjusting hand wheel is installed on a lower cross beam of the multi-step multilayer dry powder product full-automatic forming hydraulic machine through a rotating shaft, the rotating shaft is meshed and connected with the adjusting rod through a bevel gear, the adjusting rod vertically penetrates through the lower cross beam to extend out and is sleeved with the adjusting gear, the adjusting rod is in rotary contact with the lower cross beam, the adjusting gear is meshed and connected with the adjusting screw rod, and the adjusting screw rod is sleeved on the lower adjusting seat and is in threaded connection with the lower adjusting; the lower limit block of the multi-step multilayer dry powder product full-automatic molding hydraulic press forms ejection limit of the lower oil cylinder; a pin hole is formed in the lower adjusting seat, a positioning pin is arranged in the pin hole, the positioning pin is connected with the lower adjusting seat and a lower piston rod of the lower oil cylinder, and a gap is reserved between the pin hole and the positioning pin;
the lower oil cylinder return adjusting device comprises a worm wheel, a worm, an upper adjusting seat and a limiting block, wherein the worm is fixedly arranged on the lower cross beam and is meshed with the worm wheel; the limit block forms the return limit of the lower oil cylinder;
the multi-step multilayer dry powder product full-automatic forming hydraulic machine comprises four upright posts, an upper cross beam, an upper movable beam, a lower movable beam and a lower cross beam which are arranged in parallel in the vertical direction, wherein the upper cross beam, the upper movable beam, the lower movable beam and the lower cross beam are sequentially arranged from top to bottom;
an upper oil cylinder is arranged on the upper cross beam, a piston rod of the upper oil cylinder is fixedly connected with the upper movable beam, and the upper oil cylinder drives the upper movable beam to slide up and down along the four upright posts;
an upper template is arranged at the bottom of the upper movable beam;
a female die hole for mounting a female die is formed in the center of the lower movable beam, a female die pressing plate for pressing the female die is arranged on the upper portion of the female die hole, and an automatic feeding device is arranged on the lower movable beam;
the lower beam is provided with a lower oil cylinder, an upper piston rod of the lower oil cylinder is provided with a lower oil cylinder return adjusting device and is fixedly connected with a lower template through a lower connecting plate, four corners of the lower template are respectively provided with a lower guide post, the lower guide posts respectively penetrate through a floating template and a fixed template which are arranged between the lower movable beam and the lower beam and are fixedly connected with the lower movable beam, the lower oil cylinder drives the lower movable beam to slide up and down along four upright posts, the floating template, the fixed template and the lower guide posts are in precise sliding fit, the lower beam is provided with a pair of supporting plates with equal height, the supporting plates are supported and connected with the fixed template, a lower die holder is arranged between the fixed template and the floating template, the lower die holder and the fixed template are connected into a whole and form return limit of the floating template, a die slot is arranged on the lower die holder, a secondary feeding floating plate is arranged, a piston rod of the secondary feeding cylinder penetrates through the lower die base and is fixedly connected with the secondary feeding floating plate to drive the secondary feeding floating plate to float, the floating cylinder is fixedly mounted on the fixed die plate, the piston rod of the floating cylinder is fixedly connected with the floating die plate to drive the floating die plate to slide up and down along the lower guide pillar, and a through hole is formed in the center of the floating die plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205648.5A CN109895441B (en) | 2019-03-19 | 2019-03-19 | Lower oil cylinder adjusting device of multi-step multilayer dry powder product full-automatic forming hydraulic press |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910205648.5A CN109895441B (en) | 2019-03-19 | 2019-03-19 | Lower oil cylinder adjusting device of multi-step multilayer dry powder product full-automatic forming hydraulic press |
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| CN109895441A CN109895441A (en) | 2019-06-18 |
| CN109895441B true CN109895441B (en) | 2021-04-16 |
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| CN201910205648.5A Active CN109895441B (en) | 2019-03-19 | 2019-03-19 | Lower oil cylinder adjusting device of multi-step multilayer dry powder product full-automatic forming hydraulic press |
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| CN101837456B (en) * | 2009-03-18 | 2011-11-09 | 吴宣 | Multi-step formwork for full-automatic dry powder hydrostatic press |
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| CN105881952A (en) * | 2014-09-03 | 2016-08-24 | 南通奇锐液压设备有限公司 | Automatic dry powder hydraulic machine |
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| CN208232369U (en) * | 2018-03-16 | 2018-12-14 | 湖南腾驰环保科技有限公司 | A kind of novel briquetting feeding device |
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