CN209452807U - The undershoot knock-out gear of powder trimmer - Google Patents
The undershoot knock-out gear of powder trimmer Download PDFInfo
- Publication number
- CN209452807U CN209452807U CN201821704933.9U CN201821704933U CN209452807U CN 209452807 U CN209452807 U CN 209452807U CN 201821704933 U CN201821704933 U CN 201821704933U CN 209452807 U CN209452807 U CN 209452807U
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- punching
- gear
- undershoot
- depanning
- knock
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Abstract
The utility model relates to a kind of undershoot knock-out gears of powder trimmer; including upper punching, negative template and lower plate; it is provided with the first lower punching and the second lower punching between the negative template and lower plate, the first undershoot block and the second undershoot block that punching declines under punching decline and second under keeping out first are separately provided on lower plate；The lifting depanning movement of described first lower punching and the second lower punching is controlled by knock-out gear, the knock-out gear includes the depanning mandril below punching under second, first lower punching is provided with one and may pass through the second lower punching and push up the top-pressure part held mutually with the depanning mandril, the lifting of the top-pressure part is controlled by a regulating mechanism, the regulating mechanism includes that the top-pressure part is driven to press against the driving mechanism disengaged on depanning mandril or with the depanning mandril downwards, pass through regulating mechanism, can select in depanning by punching under first first act or second under punching first act.
Description
Technical field
The utility model relates to mould applications, more specifically, it relates to a kind of undershoot depanning for powder trimmer
Mechanism.
Background technique
In the prior art, the stamping Board position height adjustment multi-pass of the equipment such as powder forming machine, powder trimmer is crossed in mould
Fixed plate and adjustment plate are set between punching and bottom plate.The general configuration of powder trimmer may refer to application No. is
2013103554809, entitled powder metallurgy part sizing die frame plug adjusts structure disclosed in the Chinese patent of device,
Adjusting plug wherein can be limited in the bottom setting of trimmer and moves down extreme position, to realize adjustment core rod end, also
It is the plug fine position in product shaping cavity portion position, the final purpose for realizing the accurate shaping to product.
It is patent accompanying drawing in the prior art referring to attached drawing 1, undershoot therein is fixed on undershoot template by undershoot block
On, it when shaping, is above stamped on product, then product is pressing against undershoot and undershoot template is depressed into lower limit, and product exists at this time
The intracavitary carry out shaping pressing that negative template, upper punching and undershoot are formed；When depanning, upper punching and upper die plate rise, and lower punching is under
It is punched in out under the action of tringle and rises, plug is then synchronous under the action of the cylinder to be risen, and product is ejected negative template, then under plug
Drop carries out internal disengaging with product, realizes the secondary demoulding of product.
The product of trimmer shaping in above-mentioned patent is relatively simple, and stripping surface just has the demoulding that undershoot is pressed
Face, however some products are complex, have multiple forming faces, and select which forming face as production of the stripping surface for the later period
It is particularly important for the Protection significance of product forming quality and mold.
Utility model content
The purpose of the utility model is to provide it is a kind of be able to carry out it is successive to the product progress sequence with complicated forming face
The undershoot knock-out gear of ejection.
To achieve the above object, it is realized by following technological means: a kind of undershoot knock-out gear of powder trimmer, including
Upper punching, negative template and lower plate are provided with the first lower punching and the second lower punching, under between the negative template and lower plate
It is separately provided on bottom plate under the first undershoot block and second for keeping out the first lower punching decline and the second lower punching decline
Rush block；The lifting depanning movement of described first lower punching and the second lower punching is controlled by knock-out gear, the knock-out gear packet
Include the depanning mandril being located at below the second lower punching, the first lower punching be provided with one may pass through the second lower punching and with it is described go out
Mould mandril pushes up mutually the top-pressure part held, and the lifting of the top-pressure part is controlled by a regulating mechanism, and the regulating mechanism includes driving
The top-pressure part presses against downwards the driving mechanism disengaged on depanning mandril or with the depanning mandril.
It advanced optimizes are as follows: the top-pressure part is can be along the top-pressure part of the first lower punching upper and lower displacement variation, the press
The first lower punching is stretched out at the both ends of part respectively, is disposed with drive section, threaded connection section and press section, screw thread from top to bottom
Linkage section is threadedly engaged with the first lower punching and connect, the drive section rotation of the driving mechanism driving top-pressure part, while passing through spiral shell
Being threadedly engaged between the lower punching of line section first, drives the upper and lower displacement of top-pressure part to change.
It advanced optimizes are as follows: the drive section is provided with along axial keyway, and drive section has been connected by key the first tooth
Wheel, the length of keyway are greater than the thickness of first gear, and the driving mechanism drives the rotation of drive section by driving first gear.
It advanced optimizes are as follows: the driving mechanism is a worm and gear component or worm and helical gear component or worm screw spur gear
Component, the worm gear are engaged with first gear, and the positive and negative rotation of the worm screw drives the positive and negative rotation of first gear, while driving press
The upper and lower displacement of part changes.
It advanced optimizes are as follows: the described first lower punching is provided centrally with a second gear engaged with the first gear, institute
It states first gear and is engaged at least two with the central symmetry uniform intervals of second gear, be provided in each first gear
Top-pressure part is provided with depanning mandril below each top-pressure part accordingly.
It advanced optimizes are as follows: be provided with the first undershoot on the described first lower punching, be provided under second on the second lower punching
It rushes, is provided with punching on upper punching, when the die is closed, the upper punching, the first undershoot and the second undershoot enter former simultaneously, are formed and are used
In the type chamber of formation of parts.
It advanced optimizes are as follows: the knock-out gear includes pull rod and the transverse arm that is fixed below pull rod, the pull rod
Movement is driven by the cam swing arm mechanism that is disposed above, the cam swing arm mechanism include a driving cam crankshaft and
One is in the swing arm of dog-ear setting, is its center of rotation at the dog-ear of the swing arm, one end of swing arm is supported by an idler wheel with cam
It touches, pull rod described in other end floating connection.
It advanced optimizes are as follows: one is provided on the transverse arm for pressing the lower main shaft of the depanning mandril, and tune
Save press regulating mechanism of the lower main shaft with respect to depanning mandril relative position.
The utility model compared with prior art the advantages of be:
1, when need to use the second undershoot first by product jack up demould when, driving mechanism first control top-pressure part rising so that
It presses in the second undershoot of section retraction, while meeting press section and being separated with depanning mandril, at this point, in demoulding, depanning mandril elder generation band
The second lower punching rise, when the second lower punching rises, the second undershoot first jacks up product from former, until depanning mandril touches
When to top-pressure part, the second lower punching and the first undershoot strip the second undershoot and the first undershoot rise simultaneously, until product is complete
It is ejected entirely from former, is punched in the effect for not generating power during depanning to the depanning of product under first in the process, is suitable for
Those properly allow the second undershoot as the product of depanning ejection piece；
2, when need to use the first undershoot first by product jack up demould when, regulating mechanism declines with top-pressure part so that top
Pressure section passes through the second undershoot and presses against on depanning mandril, can be first by first when knock-out gear drives depanning mandril to rise at this time
Undershoot strip, which rises, to be risen, and jack-up of the realization to product in former first is continued to rise by the first undershoot with depanning mandril,
Depanning mandril synchronizes and rises with the first lower punching and the second lower punching, all ejects out of former until by product, this process
In the effect for not generating power during depanning to the depanning of product is punched under second, be suitble to that the first undershoot is allowed to regard suitable for those
The product of depanning ejection piece.
Detailed description of the invention
Fig. 1 is powder trimmer overall schematic in the prior art；
Fig. 2-Fig. 6 is the powder trimmer product mould unloading variation diagram in embodiment one；
Fig. 7-Figure 11 is the powder trimmer product mould unloading variation diagram in embodiment two；
Figure 12 and Figure 13 is the whole simple view of trimmer；
Figure 14 and Figure 15 is the first lower punching and regulating mechanism schematic diagram of embodiment one and embodiment two.
In figure, 1, upper punching；2, former；3, the first lower punching；4, the second lower punching；5, lower template；6, connecting plate；7, horizontal
Arm；8, pull rod；9, depanning mandril；10, guide post；11, section is pressed；12, threaded connection section；13, drive section；131, keyway；14 snails
Worm and gear component；15, first gear；17, second gear；18, the first undershoot block；19, the second undershoot block；20, product；
21, plug；22, flywheel；23, flywheel shaft；24, gear wheel；25, crankshaft；26, cam；27, swing arm；28, lower main shaft；29, it pushes up
Press regulating mechanism.
Specific embodiment
It is described in further detail with reference to the accompanying drawing and by specific embodiment to utility model, following embodiment only describes
Property, it is not restrictive the protection scope of the utility model.
It is powder trimmer schematic diagram in the prior art, course of work summary are as follows: therein referring first to attached drawing 1
Undershoot 15 is fixed on lower punching 14 by undershoot block, and when shaping, upper punching 12 is pressed on product 19, and then product 19 is pressing against
Undershoot 15 and lower punching 14 are depressed into lower limit, at this time product 19 13 plate of former, it is upper punching 12 and undershoot 15 formed it is intracavitary into
Row shaping pressing；When depanning, upper punching 12 and upper punching 11 rise, and lower punching 14 and undershoot 15 are in tringle 17 out and depanning height tune
Rise under the action of monolith 18, plug is then synchronous under the action of the cylinder to be risen, and product 19 is ejected 13 plate of former, then under plug
Drop carries out internal disengaging with product 19, realizes the secondary demoulding of product 19.
Embodiment one
It is the depanning sequence variation diagram in the present embodiment one referring to attached drawing 2-6, is retouched in order to more convenient and instantiated
It states, selection has the product of internal protrusion step here, and this kind of product needs the since the first undershoot can live coating product
And lower punching 43 first acts, and is first first detached from product with the first undershoot.
Referring now to attached drawing, 14 and 15, there are four top-pressure parts (four are used in the present embodiment for setting on punching 43 under first
Top-pressure part, naturally it is also possible to be not limited to four), in the drive section 13 of each top-pressure part, key connection has first gear 15, each
First gear 15 is engaged in intermediate second gear 17 again, and one of first gear 15 is by worm drive, and at this time first
Gear is worm gear form, and certain first gear may be helical gear or spur gear.The middle section of top-pressure part is threaded connection section 12,
Transmission is attached with the screw thread being arranged in inside the first lower punching 3, lowermost is press section 11.The end of worm screw and servo electricity
Machine is connected or is directly operated by spanner, and servo motor is controlled and PLC, and when servo motor driving worm screw rotation, first gear turns
Dynamic to drive second gear rotation, the rotation of second gear 17 will drive the other three first gear 15 being engaged with to rotate, from
And achievees the effect that four first gear synchronizations, rotates in same direction.When first gear rotation, top-pressure part will be synchronized to drive, and
Since threaded connection section 12 and first descend being threadedly engaged for punching 3, top-pressure part will be axially moved, and the setting of keyway 131
It is longer than first gear, to realize that top-pressure part has certain axial displacement space.
Referring next to attached drawing 12 and 13, it is the whole simple view of powder trimmer, is above it pressure drive unit, by
Motor (not drawing) drives flywheel 22 to rotate, and the shaft 23 of flywheel 22 drives gear wheel 24 to rotate, then by 24 axis of gear wheel is arranged in
The crankshaft 25 of the heart drives the up and down motion of upper punching, passes through multilevel transmission structure, the torque forces of Lai Tigao crankshaft.In addition, in song
Cam 26 is additionally provided on axis 25, the swing arm 27 of cam 26 and dog-ear shape cooperates, and is its center of rotation, pendulum at the dog-ear of swing arm 27
One end of arm is contradicted by an idler wheel and cam 26, pull rod described in other end floating connection.To drive when cam rotation
The swing of swing arm, and the swing of swing arm will drive the upper and lower displacement of pull rod to change, when cam 26 and the size constancy of swing arm 17,
This displacement variable is a fixed value.
It then continuing to referring to attached drawing 2-6, this is the schematic diagram of trimmer, the associated components in this programme are related only to, remaining
Component is consistent in existing trimmer, therefore does not make all to draw.It from top to bottom successively include under upper punching 1, former 2, first
The lower punching 4 of punching 3, second and lower template 5, former 2 therein and lower template 5 are fixed on the rack and are provided with guide post between the two
10, guide post 10 is used to be oriented to the up and down motion of the first lower punching 3 and the second lower punching 4.It is provided with and is used for below lower plate
The pedestal of stationary core rod 21, since scheme is not related to the improvement of plug 21, therefore simple description herein.
7 tension member 8 of transverse arm drives, and press regulating mechanism 29 and lower main shaft 28 are provided on transverse arm 7, passes through worm gear snail
Bar regulative mode realizes the adjusting of the upper and lower position of lower main shaft 28, and the lower section of depanning mandril 9 is provided with fixed depanning mandril 9
Connecting plate 6, be provided with four depanning mandrils 9 on connecting plate 6, and the position of depanning mandril 9 is located at the lower section of top-pressure part.Work as drawing
When bar is in lower position, lower main shaft 9 is farthest at a distance from connecting plate 6, thus adjust lower main shaft 9 and connecting plate 6 it is opposite away from
From the distance that adjustable connecting plate 6 drives depanning mandril 9 to move up.For example, the range that pulls up of pull rod is 28cm,
The range difference that lower main shaft 9 and connecting plate 6 is arranged is 10cm, then it is 18cm that connecting plate 6, which drives the range that moves up of depanning mandril 9,.This
Numerical value can specifically be adjusted according to specific operating condition.
Four relief holes of the press section 11 for passing through top-pressure part are wherein provided under second on punching 3, are being pressed
During the up and down motion of part, press section 11 can be withstood on depanning mandril 9.
Since this product belongs to the product of between outer land stepwise, therefore in depanning, the second undershoot is suitble to first to act.Firstly, driving
Mechanism first controls top-pressure part rising, so that press section 11 enters in the second lower punching, while meeting and separating (figure with depanning mandril 9
2)；Then, pull rod 8 rises with transverse arm and lower main shaft 28, until lower main shaft encounters connecting plate 6 (Fig. 3)；Then, pull rod 8 after
It is continuous to rise, it will rise with connecting plate 6 and 9 one pieces of depanning mandril, until depanning mandril encounters the second lower punching 4 (Fig. 4)；It connects
, continue to rise with pull rod 8, depanning mandril 9 will rise with the second lower punching 4 first so that the second lower punching 4 and the
Two undershoot baffles 19 separate first, and when the second lower punching 4 rises, the second undershoot 41 first jacks up product from former 2, until going out
When mould mandril 9 encounters top-pressure part (Fig. 5)；Finally, continuing to draw high with pull rod 8, the second lower punching 4 and the first lower 3 band of punching
The second undershoot 41 and the first undershoot 31 rise simultaneously, until product 20 is ejected (Fig. 6) from former 2 completely, in the process
First undershoot 31 does not generate the effect of power during depanning to the depanning of product 20, properly allows the second undershoot 41 suitable for those
As the product of depanning ejection piece.And specific connecting plate 6 drives the climb of depanning mandril 9, adjustable lower main shaft 28
Upper and lower position be adjusted, until be adjusted to be suitble to by product completely from former ejection be advisable.
Embodiment two
Referring to attached drawing 7-10, compared with embodiment one, the difference is that demoulding sequence changes, it is suitble to product that there is interior
Terrace, and the product 20 that the interior step surface envelopes the second undershoot 41, thus in depanning, it is suitble to the first undershoot first to act, it is real
Existing product 20 is demoulded with the second undershoot 41 first.
Regulating mechanism acts first, and control top-pressure part moves downward, so that press section 11 presses against on depanning mandril 9 (figure
6- Fig. 7)；Then pull rod 8 rises with transverse arm 7 and lower main shaft 28, until lower main shaft encounters connecting plate 6 (Fig. 8)；Then pull rod
8 continue to rise, and also rise simultaneously with the first lower punching 3, and separate (Fig. 9) with the realization of the first undershoot block 18；Finally, drawing
Bar will continue to rise, while rise with the first undershoot 31 and the second undershoot 41, so that the second lower punching 4 is also kept off with the second undershoot
Block 19 realizes that separation rises, and realizes demoulding (Figure 10) until ejecting product 20 completely from former 2, the second undershoot during this
The effect for not generating power to the depanning of product during depanning is suitble to allow the first undershoot as depanning ejection piece suitable for those
Product.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of undershoot knock-out gear of powder trimmer, including upper punching, negative template and lower plate, which is characterized in that described
It is provided with the first lower punching and the second lower punching between negative template and lower plate, is separately provided for keeping out the on lower plate
The the first undershoot block and the second undershoot block of punching decline once and the second lower punching decline；Described first lower punching and second
The lifting depanning movement of lower punching is controlled by knock-out gear, and the knock-out gear includes the depanning top below the second lower punching
Bar, the first lower punching is provided with one and may pass through the second lower punching and push up the top-pressure part held mutually with the depanning mandril, described
The lifting of top-pressure part is controlled by a regulating mechanism, and the regulating mechanism includes that the top-pressure part is driven to press against depanning mandril downwards
Driving mechanism that is upper or being disengaged with the depanning mandril.
2. the undershoot knock-out gear of powder trimmer according to claim 1, which is characterized in that the top-pressure part is can edge
The first lower punching is stretched out at the top-pressure part of first lower punching upper and lower displacement variation, the both ends of the top-pressure part respectively, from top to bottom according to
Secondary to be provided with drive section, threaded connection section and press section, threaded connection section is threadedly engaged with the first lower punching and connect, the drive
Motivation structure drives the drive section rotation of top-pressure part, while by being threadedly engaged between the lower punching of thread segment first, driving press
The upper and lower displacement of part changes.
3. the undershoot knock-out gear of powder trimmer according to claim 2, which is characterized in that the drive section is provided with
Along axial keyway, and drive section has been connected by key first gear, and the length of keyway is greater than the thickness of first gear, the drive
Motivation structure drives the rotation of drive section by driving first gear.
4. the undershoot knock-out gear of powder trimmer according to claim 3, which is characterized in that the driving mechanism is one
Worm and gear component or worm and helical gear component or worm screw spur gear arrangement, the worm gear are engaged with first gear, the worm screw
Positive and negative rotation drive the positive and negative rotation of first gear, while the upper and lower displacement of top-pressure part being driven to change.
5. the undershoot knock-out gear of powder trimmer according to claim 3, which is characterized in that the described first lower punching
It is provided centrally with a second gear engaged with the first gear, the first gear is with the central symmetry uniform intervals of second gear
It is engaged at least two, top-pressure part is provided in each first gear, is provided with below each top-pressure part accordingly
Depanning mandril.
6. the undershoot knock-out gear of powder trimmer according to claim 1, which is characterized in that on the described first lower punching
Be provided with the first undershoot, be provided with the second undershoot on the second lower punching, punching is provided on upper punching, when the die is closed, it is described on
Punching, the first undershoot and the second undershoot enter former simultaneously, form the type chamber for being used for formation of parts.
7. the undershoot knock-out gear of powder trimmer according to claim 1, which is characterized in that the knock-out gear includes
The movement of pull rod and the transverse arm being fixed below pull rod, the pull rod is driven by the cam swing arm mechanism being disposed above,
The cam swing arm mechanism includes the crankshaft of a driving cam and the swing arm that one is arranged in dog-ear, is at the dog-ear of the swing arm
One end of its center of rotation, swing arm is contradicted by an idler wheel and cam, pull rod described in other end floating connection.
8. the undershoot knock-out gear of powder trimmer according to claim 7, which is characterized in that be arranged on the transverse arm
There is one to adjust for pressing press of the main shaft with respect to depanning mandril relative position under the lower main shaft of the depanning mandril, and adjusting
Mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821704933.9U CN209452807U (en) | 2018-10-19 | 2018-10-19 | The undershoot knock-out gear of powder trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821704933.9U CN209452807U (en) | 2018-10-19 | 2018-10-19 | The undershoot knock-out gear of powder trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209452807U true CN209452807U (en) | 2019-10-01 |
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ID=68036946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821704933.9U Expired - Fee Related CN209452807U (en) | 2018-10-19 | 2018-10-19 | The undershoot knock-out gear of powder trimmer |
Country Status (1)
| Country | Link |
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| CN (1) | CN209452807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332707A (en) * | 2018-10-19 | 2019-02-15 | 宁波汇众粉末机械制造有限公司 | The undershoot knock-out gear of powder trimmer |
-
2018
- 2018-10-19 CN CN201821704933.9U patent/CN209452807U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332707A (en) * | 2018-10-19 | 2019-02-15 | 宁波汇众粉末机械制造有限公司 | The undershoot knock-out gear of powder trimmer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20201019 |
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| CF01 | Termination of patent right due to non-payment of annual fee |