CN208912820U - A kind of noble metal profile extrusion forming device - Google Patents
A kind of noble metal profile extrusion forming device Download PDFInfo
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- CN208912820U CN208912820U CN201821656131.5U CN201821656131U CN208912820U CN 208912820 U CN208912820 U CN 208912820U CN 201821656131 U CN201821656131 U CN 201821656131U CN 208912820 U CN208912820 U CN 208912820U
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Abstract
The utility model discloses a kind of noble metal profile extrusion forming devices, including workbench, extrusion cylinder, weight, pressure ram, lead shunting pad, extrusion cylinder pad, it is offered and the extruding barrel chamber vertical left die hole of extrusion cylinder and right mould hole at left and right sides of the extrusion cylinder bottom of chamber portion of extrusion cylinder, the extruding barrel chamber lower part of extrusion cylinder, which is detachably placed, leads shunting pad, pressure ram top is equipped with mobile device, and workbench upper surface is equipped with the extrusion cylinder balance system being made of balancing stand, spring, concave spring base, fixing bolt, nut；The extrusion cylinder auxiliary mat contour with extrusion cylinder pad is equipped with outside extrusion cylinder pad.Die hole is respectively arranged at extrusion cylinder lower part of the utility model or so, leads the shape for shunting pad by changing, can squeeze out the product of 1~2 different size or same size simultaneously；After extrusion cycle, using extrusion cylinder balance system and extrusion cylinder, extrusion cylinder pad, extrusion cylinder auxiliary mat etc. cooperates, and the connection of discard and product is cut, without being equipped with dedicated shearing equipment.
Description
Technical field
The utility model relates to extrusion equipment technical field, especially a kind of noble metal profile extrusion forming device.
Background technique
Noble metal property is stable, gloss is gorgeous, widely used but storage is rare, thus is worth higher.With industrial use ratio
For the biggish silver of weight, because its superior performance is widely used in mechanical, electronics industry, especially silver-colored and its conjunction
The demand of metal type material is growing, and storage gradually decreases, in addition silver and gold Financial Attribute having the same, with Huang
Metallographic ratio, the unit value of silver is low, and market capacity is small, and price is usually manipulated by market, and big price fluctuation is produced to enterprise
Cost control brings very big uncertainty.Silver and its alloy profile mainly have plate, band, tubing, bar and silk material etc., with
For silver plate band production method, traditional approach is, through smelting ingot casting, washes one's face, rolls, intermediate annealing, pickling, drying, secondary rolls
The multiple working procedures such as system could be completed.Rolling can generate processing hardening, need intermediate annealing, and annealing has oxidation and generates, it is necessary into
Row pickling, after carry out secondary rolling etc. again, these intermediate links can all cause biggish material loss, secondary pollution, and artificial
And the investment of auxiliary material, improve costs of production and operation.In recent years, domestic and international noble metal processing enterprise passes through optimized production process,
Shorten process flow and scientific management, improve noble metal processing efficiency, reduces production cost.Also have unit attempt with squeeze copper,
The general extruder of aluminium etc. produces noble metal product forms.As shown in Figure 1, existing pressurizing unit is mainly filled by extrusion cylinder 1, compression
Set 2 and pressure ram 3, hydraulic shear 18, the composition such as extrusion die 8 and extrusion cylinder pad 9.When standard extrusion machine operation, remelting will be passed through
, be suitble to squeeze barrel shape turned blank be packed into extrusion cylinder it is intracavitary, hydraulic cylinder piston driving pressure ram move down extruded stock
Material, by extrusion die orifice extruded product (arrow direction in figure), product flow direction is consistent with complete direction is squeezed, i.e., product flow direction and
The direction of extrusion is identical, and a mold can only squeeze single product." S " squeezes boom end and keeps with extrusion cylinder needs in figure
Distance just can ensure that blank smoothly fills to facilitate charging and lost motion, distance to should be greater than 1 times of charge length or more
Enter in extrusion cylinder.After the completion of one extrusion cycle, hydraulic shear 18 is cut discard and is connect with product.
But the working ability of this kind of equipment and investment are all bigger, and noble metal products quantity is matching differs greatly,
Even if taking, common material is squeezed and noble metal squeezes the interspersed mode produced, also due to its traditional horizontal extruder and extruding
The limitation of barrel structure, as needed to cast the blank for being suitble to squeeze barrel shape, ingot casting process will cause noble metal scaling loss, and intersect
Secondary pollution is often brought using equipment, and the noble metal product forms of high-quality cannot be produced and the production and operation is effectively reduced
Cost.
Summary of the invention
The purpose of this utility model is the deficiencies in the prior art to be solved, and provides a kind of noble metal profile and is squeezed into
Type device.
In order to achieve the above objectives, the utility model is implemented according to following technical scheme:
A kind of noble metal profile extrusion forming device, including workbench, extrusion cylinder, weight, pressure ram, lead shunting pad, squeeze
Pressure cylinder pad, the extrusion cylinder are located above workbench, and extrusion cylinder upper end has to be fixedly connected by weight, and pressure ram is arranged in extrusion cylinder
Extruding barrel chamber right above, extrusion cylinder pad is placed on the workbench upper surface immediately below the extruding barrel chamber of extrusion cylinder, the extruding
Left die hole and right mould hole, the extruding barrel chamber of left die hole and right mould hole and extrusion cylinder are offered at left and right sides of the extrusion cylinder bottom of chamber portion of cylinder
Vertically, the extruding barrel chamber lower part of extrusion cylinder, which is detachably placed, leads shunting pad, and the pressure ram top is equipped with to be squeezed for transverse shifting
The mobile device of compression bar, the workbench upper surface are equipped with and are made of balancing stand, spring, concave spring base, fixing bolt, nut
Extrusion cylinder balance system, the balancing stand is parallel to workbench upper surface, and extrusion cylinder is placed on balancing stand, and concave spring base is solid
The both ends of balancing stand lower end surface are scheduled on, workbench upper surface is run through in the front end of fixing bolt, and spring is nested on fixing bolt, spiral shell
Mother is mounted on the fixing bolt above balancing stand, and lower spring end is fixed on nut, and the upper end of spring is located at spill spring base
It is interior；The extrusion cylinder auxiliary mat contour with extrusion cylinder pad is equipped with outside the extrusion cylinder pad.
Further, by Driven by Hydraulic Cylinder, the piston-rod end of hydraulic cylinder is fixed in pressure ram pad the pressure ram, mobile
Device is fixed on pressure ram pad lower end surface, and pressure ram is fixed on the mobile device.
Further, the shunting pad of leading includes taper liner, flat pattern pad, convex pad；Taper liner is high-end to be higher by the calibrating strap of right mould hole
Edge, low side are lower than left die hole calibrating strap lower edge；The upper surface of flat pattern pad is lower than left die hole and right mould hole calibrating strap lower edge；Convex pad
Upper end left end is lower than left die hole calibrating strap lower edge, and convex pads upper end right end and is lower than right mould hole calibrating strap lower edge, and convex pad is convex
Die hole or one side of the right mould hole offset to the left of portion center, maximum offset XmaxLess than the 1/4 of convex pad width B, protrusion highest point is low
In 2~5mm of die hole centre-height.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model directlys adopt noble metal standard ingot, needs not move through refuse ingot casting, secondary smelting is overcome to damage
Consumption, economizing on resources reduces cost；
2, the utility model using can transverse shifting pressure ram can make crush stroke reduce 50%, extrusion time also accordingly contracts
It is short by 50%, the temperature drop of extrusion cylinder is effectively controlled, without heating extrusion cylinder again when extruding, only blank self heat in extrusion process
The heat generated with plastic deformation can keep extrusion cylinder temperature to stablize in extrusion process claimed range, both improve extruding
Efficiency effectively reduces energy consumption again；
3, the hydraulic cylinder effective travel of the utility model reduces 50%, can greatly reduce host input cost；Fourth, squeezing
Cylinder lower part or so respectively sets a die hole, leads the shape for shunting pad by changing, can squeeze out 1~2 different size or phase simultaneously
The product of same specification reduces compression ratio, reduces extruding force；
4, the utility model is equipped in extrusion cylinder lower part by balancing stand, spring, the extruding that fixed fixing bolt, nut are constituted
Cylinder balance system, the system and extrusion cylinder, extrusion cylinder pad, auxiliary mat wait components to match, and cut the connection of discard and product,
Without being equipped with discard shearing equipment；
5, noble metal utilisation can be significantly improved using the device and squeeze the efficiency of production, reduce metal loss, reduce
Energy consumption and costs of production and operation, the exhaust gas and residue contamination for avoiding ingot casting from generating.
Detailed description of the invention
Fig. 1 is existing extrusion forming device schematic diagram.
Fig. 2 is utility model device schematic diagram.
Pressure ram position view when Fig. 3 is the utility model charging.
Fig. 4 is schematic diagram of the utility model when squeezing discard and being 20~30mm.
Fig. 5 is the utility model after extruding, and product, leads the schematic diagram for shunting the pad time of releasing at discard.
Fig. 6 is that convex leads shunting pad extruding schematic diagram.
Fig. 7 is that oblique type diversion pads squeeze schematic diagram.
Fig. 8 is to lead the structural schematic diagram for shunting pad；Wherein (a) is plain cushion, (b) is taper liner, (c) is convex pad, level in figure
Dotted line is die hole height neutrality line.
Wherein: 1-extrusion cylinder；101-left die holes；102-right mould holes；2-weights；3-pressure rams；4-mobile devices；
5-pressure ram pads；6-hydraulic cylinders；7-blanks to be extruded；8-lead shunting pad；9-extrusion cylinder pads；The auxiliary pad of 10-extrusion cylinders；
11-products 1；12-products 2；13-balancing stands；14-springs；15-concave spring bases；16-fixing bolts；17-work
Platform, 18-hydraulic shears, 19-nuts.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings and specific embodiments, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
As shown in Fig. 2, the present embodiment provides a kind of noble metal profile extrusion forming device, including workbench 17, extrusion cylinder
1, weight 2, pressure ram 3, lead and shunt pad 8, extrusion cylinder pad 9, the extrusion cylinder 1 is located above workbench 17, and 1 upper end of extrusion cylinder has
Be fixedly connected by weight 2, its effect of weight 2 is fixed press cylinder 1, pressure ram 3 be arranged in the extruding barrel chamber of extrusion cylinder 1 just on
Side, extrusion cylinder pad 9 are placed on 17 upper surface of workbench immediately below the extruding barrel chamber of extrusion cylinder 1, the extrusion cylinder of the extrusion cylinder 1
Left die hole 101 and right mould hole 102, the extruding of left die hole 101 and right mould hole 102 and extrusion cylinder 1 are offered at left and right sides of the portion of bottom of chamber
Barrel chamber is vertical, and the extruding barrel chamber lower part of extrusion cylinder 1, which detachably places to lead, shunts pad 8, and 3 top of pressure ram is equipped with for laterally
The mobile device 4 of pressure ram is moved, 17 upper surface of workbench is equipped with by balancing stand 13, spring 14, concave spring base 15, consolidates
Determine bolt 16, the extrusion cylinder balance system that nut 19 is constituted, the balancing stand 13 is parallel to 17 upper surface of workbench, extrusion cylinder 1
It is placed on balancing stand 13, concave spring base 15 is fixed on the both ends of 13 lower end surface of balancing stand, and work is run through in the front end of fixing bolt 16
Make platform upper surface, spring 14 is nested on fixing bolt 16, and nut 19 is mounted on the fixing bolt 16 of 13 top of balancing stand, bullet
14 lower end of spring is fixed on nut 19, and the upper end of spring 14 is located in spill spring base 15；The total bearing capacity of the design of spring 14 is answered
Greater than the 20~50% of the sum of 1 weight of extrusion cylinder and billet weight, under nonextruding job state, adjusting nut 19 makes to squeeze
Cylinder pad 9 and the auxiliary pad 10 of extrusion cylinder are kept at a distance from h=4~6mm with 1 bottom of extrusion cylinder；Be equipped with outside the extrusion cylinder pad 9 with
The contour extrusion cylinder auxiliary mat 10 of extrusion cylinder pad 9.
In the present embodiment, the pressure ram 3 is driven by hydraulic cylinder 6, and the piston-rod end of hydraulic cylinder 6 is fixed in pressure ram
Pad 5, mobile device 4 are fixed on pressure ram and pad 5 lower end surfaces, and pressure ram 3 is fixed in mobile device 4.3 initial position of pressure ram is
Its end is about 10mm or so away from extrusion cylinder upper surface distance S.
In the present embodiment, as shown in figure 8, the shunting pad 8 of leading includes taper liner, flat pattern pad, convex pad, 8, shunting pad is led
Metal flow and guiding role are distributed, so that the plastic metal stream of linear motion is changed direction, is flowed to both sides, be squeezed into left die hole
101 and/or right mould hole 102, form 1 or 2 products；Taper liner is high-end to be higher by edge on the calibrating strap of right mould hole, and low side is lower than left mould
Hole calibrating strap lower edge, unilateral discharging use when squeezing single product；The upper surface of flat pattern pad is lower than left die hole and right mould hole sizing
Band lower edge, both sides discharging, squeeze same specification product (or two different sizes, but when squeezing two products metal flow it is identical)
When use；Convex pads upper end left end and is lower than left die hole calibrating strap lower edge, and convex pads upper end right end and is lower than right mould hole calibrating strap
Lower edge, convex pad protrusion center die hole or one side of right mould hole offset to the left, maximum offset XmaxLess than the 1/ of convex pad width B
4, protrusion highest point is lower than 2~5mm of die hole centre-height, and both sides discharging makes when squeezing two metal flow products of different specifications
With.
As shown in Fig. 2, pressure ram 3 is intracavitary by the loading extrusion cylinder 1 of noble metal standard ingot blank material 7 in dotted line position, Fig. 3 is seen
Shown, rear pressure ram mobile device 4 starts, and pressure ram is quickly laterally moved to extrusion cylinder axial location, rear 6 piston of hydraulic cylinder
Driving pressure ram 3 moves down extrusion billet, and the shunting guiding of pad 8 (plain cushion) is shunted by leading, and metal is squeezed into left mould respectively
Hole 101 and right mould hole 102 form product 11 and product 12, as shown in figure 4, product flow direction is vertical with the direction of extrusion.More than extruding
Expect that (discard) thickness in 30mm or so, if desired continues continuously extruded, commanding apparatus, pressure ram 3 moves upward out extrusion cylinder 1,
Start mobile device 4 afterwards, pressure ram 3 returns to initial charge position, sees Fig. 3, fills the second block, repeats above-mentioned movement, realizes nothing
Discard is continuously extruded.Extruded product is different according to die hole shape, can squeeze the product of two identical or different specifications simultaneously, can also
To lead the shape for shunting pad 8 by changing, right mould hole 102 such as is blocked using taper liner, a specification product is only squeezed, such as Fig. 7 institute
Show.
In the case of Fig. 4, as blank residue (discard) about 20mm, if not needing a continuously extruded or continuously extruded week
At the end of phase, move up pressure ram 3 (be greater than 5mm), it is rear to unclamp weight 2, at this point, balancing device jack up automatically extrusion cylinder 1~
5mm or so, extrusion cylinder pad 9 releases, extract extrusion cylinder pad 9 out, then proceed to move down pressure ram 3, at this time by the auxiliary pad of extrusion cylinder
10 continue to support extrusion cylinder 1, and due to the relative motion of pressure ram 3 and extrusion cylinder die orifice, defective material 7 is cut off, with product 11 and 12
Separation, takes out product afterwards, completes an extrusion cycle, as shown in Figure 5.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (3)
1. a kind of noble metal profile extrusion forming device, including workbench, extrusion cylinder, weight, pressure ram, leads shunting pad, squeezes
Cylinder pad, the extrusion cylinder are located above workbench, and extrusion cylinder upper end has to be fixedly connected by weight, and extrusion cylinder is arranged in pressure ram
It squeezes right above barrel chamber, extrusion cylinder pad is placed on the workbench upper surface immediately below the extruding barrel chamber of extrusion cylinder, the extrusion cylinder
Extrusion cylinder bottom of chamber portion at left and right sides of offer left die hole and right mould hole, the extruding barrel chamber of left die hole and right mould hole and extrusion cylinder is hung down
Directly, the extruding barrel chamber lower part of extrusion cylinder, which is detachably placed, leads shunting pad, it is characterised in that: the pressure ram top is equipped with for cross
To the mobile device of mobile pressure ram, the workbench upper surface be equipped with by balancing stand, spring, concave spring base, fixing bolt,
The extrusion cylinder balance system that nut is constituted, the balancing stand are parallel to workbench upper surface, and extrusion cylinder is placed on balancing stand, concave
Spring base is fixed on the both ends of balancing stand lower end surface, and workbench upper surface is run through in the front end of fixing bolt, and spring is nested in fixation
On bolt, nut is mounted on the fixing bolt above balancing stand, and lower spring end is fixed on mother, and the upper end of spring is located at spill
In spring base；The extrusion cylinder auxiliary mat contour with extrusion cylinder pad is equipped with outside the extrusion cylinder pad.
2. noble metal profile extrusion forming device according to claim 1, it is characterised in that: the pressure ram is by hydraulic cylinder
Driving, the piston-rod end of hydraulic cylinder are fixed in pressure ram pad, and mobile device is fixed on pressure ram pad lower end surface, and pressure ram is solid
Determine on the mobile device.
3. noble metal profile extrusion forming device according to claim 1, it is characterised in that: the shunting pad of leading includes oblique
Pad, flat pattern pad, convex pad；Taper liner is high-end to be higher by edge on the calibrating strap of right mould hole, and low side is lower than left die hole calibrating strap lower edge；Flat pattern pad
Upper surface be lower than left die hole and right mould hole calibrating strap lower edge；Convex pads upper end left end and is lower than left die hole calibrating strap lower edge, convex
Type pads upper end right end and is lower than right mould hole calibrating strap lower edge, and convex pads protrusion center die hole or one side of right mould hole offset to the left, most
Big offset XmaxLess than the 1/4 of convex pad width B, protrusion highest point is lower than 2~5mm of die hole centre-height.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821656131.5U CN208912820U (en) | 2018-10-12 | 2018-10-12 | A kind of noble metal profile extrusion forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821656131.5U CN208912820U (en) | 2018-10-12 | 2018-10-12 | A kind of noble metal profile extrusion forming device |
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| CN208912820U true CN208912820U (en) | 2019-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264537A (en) * | 2020-09-10 | 2021-01-26 | 安徽科技学院 | Special expand tube kludge in warm siphunculus is made |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264537A (en) * | 2020-09-10 | 2021-01-26 | 安徽科技学院 | Special expand tube kludge in warm siphunculus is made |
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