CN110434213A - A kind of steel steel-smelting device equipped with safety protective mechanisms - Google Patents
A kind of steel steel-smelting device equipped with safety protective mechanisms Download PDFInfo
- Publication number
- CN110434213A CN110434213A CN201910833630.XA CN201910833630A CN110434213A CN 110434213 A CN110434213 A CN 110434213A CN 201910833630 A CN201910833630 A CN 201910833630A CN 110434213 A CN110434213 A CN 110434213A
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- China
- Prior art keywords
- bearing sheet
- steel
- connecting rod
- spring
- support bar
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a kind of steel steel-smelting device equipped with safety protective mechanisms, including protective housing, first bearing sheet and the second bearing sheet, there is second support bar in one end of the second bearing sheet inner tip by the way that bearing is vertically-mounted, and the second bearing sheet inner tip on the outside of second support bar is provided with sliding slot, the upper end of the second support bar outer wall is horizontally installed with second gear, and the top of second support bar is horizontally installed with the first bearing sheet, the both ends homogeneous vertical on first bearing sheet top is equipped with the first spring, and first the top of spring protective housing is installed, second bearing sheet top of the second support bar side is equipped with support frame, and second bearing sheet top of the second support bar far from support frame side is vertically-mounted the first cylinder.The steel steel-smelting device for being equipped with safety protective mechanisms is bonded by the second fixed ring of electric pushrod with steel block, convenient for playing protective action under protective housing and door body effect.
Description
Technical field
The present invention relates to steel steel-smelting device technical field, specially a kind of steel equipped with safety protective mechanisms makes steel dress
It sets.
Background technique
Steel is a kind of alloy being combined by the other elements such as iron and carbon, product of the number of carbon content concerning steel
Grade, punching mechanism being generally required in steelmaking process, it being processed, traditional steel steel-smelting device can satisfy people substantially
Use demand, but still have certain problems, particular problem is as described below:
1, most of steel steel-smelting devices do not have protection mechanism in punching press currently on the market, and steel block is be easy to cause to move
The appearance of the case where position, scrap iron from splashing is hurted sb.'s feelings；
2, most of steel steel-smelting devices do not have buffer gear currently on the market, are easy to make because of punching press after prolonged use
With causing ground and equipment damage；
3, most of steel steel-smelting device charging and discharging mechanism height are fixed currently on the market, are not easy to adjust, can not be applicable in
In the charging and discharging mechanism of different height.
Summary of the invention
The purpose of the present invention is to provide a kind of steel steel-smelting device equipped with safety protective mechanisms, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of steel steel-making equipped with safety protective mechanisms
One end of device, including protective housing, the first bearing sheet and the second bearing sheet, the second bearing sheet inner tip is perpendicular by bearing
Second support bar directly is installed, and the second bearing sheet inner tip on the outside of second support bar is provided with sliding slot, described second
The upper end of strut outer wall is horizontally installed with second gear, and the top of second support bar is horizontally installed with the first bearing sheet, described
The both ends homogeneous vertical on the first bearing sheet top is equipped with the first spring, and the top of the first spring is equipped with protective housing, described
Second bearing sheet top of second support bar side is equipped with support frame, and second support bar second holding far from support frame side
Platen top is vertically-mounted the first cylinder, and the output end of first cylinder is vertically-mounted the first hydraulic stem, and the first gas
Second bearing sheet top homogeneous vertical of cylinder two sides is equipped with second spring, the top water of first hydraulic stem and second spring
Safety is equipped with third bearing sheet, and the both ends on third bearing sheet top are horizontally installed with conveyer belt, the transmission by mounting rack
Third bearing sheet top with side is horizontally installed with the second motor by pedestal.
Preferably, second bearing sheet top of the second support bar far from the first cylinder side is vertically-mounted the first electricity
Machine, and first motor output end it is vertically-mounted have shaft, shaft outer wall upper end is horizontally installed with and second gear phase
The first gear matched.
Preferably, the surrounding of first bearing sheet bottom end is vertically-mounted first support bar, and first support bar bottom
End is equipped with the sliding block to match with sliding slot.
Preferably, the middle position on first bearing sheet top is horizontally installed with the 6th bearing sheet, and the 6th cushion cap
The both ends on plate top pass through articulated shaft and are hinged with the 4th connecting rod, and the top of the 4th connecting rod is cut with scissors respectively by articulated shaft
It is connected to sleeve and the 5th connecting rod, and the top of the 5th connecting rod is hinged with the 7th bearing sheet by articulated shaft, the described 7th holds
The top of platen is connected with protective housing bottom end.
Preferably, the inner horizontal of the sleeve is equipped with the 6th spring, and the 6th spring is far from the 5th connecting rod one end
It is horizontally installed with the third connecting rod through sleeve, the third connecting rod outer wall is horizontally installed with the 5th to be connected with sleeve
Spring.
Preferably, the first bearing sheet top both ends of the 6th bearing sheet two sides are horizontally installed with the 5th bearing sheet,
And the 5th the middle position on bearing sheet top the second connecting rod is hinged with by articulated shaft, and the top of the second connecting rod passes through
Articulated shaft is hinged with first connecting rod.
Preferably, the top of the first connecting rod is hinged with the 4th bearing sheet by articulated shaft, and first connecting rod is logical
It crosses the 4th spring to be connected with the second connecting rod, the top of the 4th bearing sheet is connected with protective housing bottom end.
Preferably, protective housing front both ends pass through articulated shaft and are hinged with door body, and two sidewalls inside protective housing
Lower end is horizontally installed with electric pushrod.
Preferably, the electric pushrod has the first fixed ring far from protective housing one end is vertically-mounted, and the first fixed ring is remote
Side wall even level from electric pushrod side is equipped with third spring, and the one end of the third spring far from the first fixed ring is perpendicular
Second fixed ring is directly installed.
Preferably, the middle position homogeneous vertical on support frame as described above top is equipped with the second cylinder, and the second cylinder is defeated
Vertically-mounted the second hydraulic stem having through top of support frame of outlet, the bottom end of second hydraulic stem is equipped with staking punch.
Compared with prior art, the beneficial effects of the present invention are:
1, by being equipped with first motor, the first cylinder, the second motor, shaft, first gear, second gear, second
Strut, the first bearing sheet, first support bar, sliding block, sliding slot, door body, conveyer belt, the first hydraulic stem and third bearing sheet, when need
When carrying out loading and unloading, first start first motor, the first cylinder and the second motor, drives shaft to turn under the action of first motor
It moves that first gear is driven to rotate, first gear drives second gear rotation to drive second support bar and the first bearing sheet
Rotation, the first bearing sheet drives first support bar by sliding block in sliding slot internal slide, so that door body turns to conveyer belt
Side drives the first hydraulic stem flexible to drive third bearing sheet and conveyer belt to move up and down under the action of the first cylinder,
Conveyer belt rotation is driven under the action of the second motor consequently facilitating being suitable for the charging and discharging mechanism of different height；
2, simultaneously device by being equipped with electric pushrod, the second cylinder, the first fixed ring, the second fixed ring, second hydraulic
Bar, staking punch, protective housing and door body start electric pushrod and the second cylinder, in the work of electric pushrod when needing to carry out punching press
With the movement of the first fixed ring of lower drive so that the second fixed ring is fitted closely with steel block, band under the action of the second cylinder
Dynamic second hydraulic stem is flexible to drive staking punch to move up and down up and down, consequently facilitating in protective housing, door body and electric pushrod
It prevents from being displaced when punching press under effect and the case where scrap iron from splashing；
3, simultaneously device by being equipped with staking punch, protective housing, the 4th bearing sheet, the 7th bearing sheet, first connecting rod, the
Two connecting rods, the 5th connecting rod, the 4th connecting rod, sleeve, third connecting rod, the first spring, the 4th spring, the 5th spring and
Six springs, when carrying out punching press, since the impact force that staking punch generates is delivered separately to the 4th bearing sheet and the 7th through protective housing
Bearing sheet, the 4th bearing sheet transmit the force to first connecting rod to drive first connecting rod and second under the action of articulated shaft
Connecting rod rotation, the 7th bearing sheet transmit the force to the 5th connecting rod under the action of articulated shaft drive the 5th connecting rod and
4th connecting rod is rotated and then is slided in third connecting rod with moving sleeve, thus in the first spring, the 4th spring, the 5th spring
The impact force is eliminated under the elastic force effect of the 6th spring, consequently facilitating bumper and absorbing shock, extends this and be equipped with safety protective mechanisms
The service life of steel steel-smelting device.
Detailed description of the invention
Fig. 1 is that the present invention faces schematic cross-sectional view；
Fig. 2 is right side structural representation of the present invention；
Fig. 3 is the second bearing sheet overlooking structure diagram of the invention；
Fig. 4 is first gear of the present invention and second gear overlooking structure diagram；
Fig. 5 is the portion A enlarged structure schematic diagram in Fig. 1 of the present invention；
Fig. 6 is the portion B enlarged structure schematic diagram in Fig. 1 of the present invention；
Fig. 7 is the portion C enlarged structure schematic diagram in Fig. 1 of the present invention.
In figure: 1, staking punch；2, protective housing；3, the first spring；4, first support bar；5, sliding block；6, first gear；7,
One motor；8, shaft；9, second gear；10, second support bar；11, the first bearing sheet；12, sliding slot；13, second spring；14,
First cylinder；15, the second bearing sheet；16, third bearing sheet；17, the first hydraulic stem；18, conveyer belt；19, support frame；20,
Two cylinders；21, the second hydraulic stem；22, door body；23, the second motor；24, the first fixed ring；25, electric pushrod；26, second is solid
Determine ring；27, third spring；28, first connecting rod；29, the 4th bearing sheet；30, the 4th spring；31, the 5th bearing sheet；32,
Two connecting rods；33, the 5th spring；34, third connecting rod；35, sleeve；36, the 6th bearing sheet；37, the 4th connecting rod；38,
Five connecting rods；39, the 7th bearing sheet；40, the 6th spring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7 is please referred to, a kind of embodiment provided by the invention: a kind of steel steel-making dress equipped with safety protective mechanisms
It sets, including protective housing 2, the first bearing sheet 11 and the second bearing sheet 15, one end of 15 inner tip of the second bearing sheet pass through bearing
It is vertically-mounted to have second support bar 10；
Second bearing sheet 15 top of the second support bar 10 far from 14 side of the first cylinder is vertically-mounted first motor 7,
The model of the first motor 7 can be 57HS22 stepper motor, and the output end of first motor 7 vertically-mounted has shaft 8, shaft
8 outer wall upper ends are horizontally installed with the first gear 6 to match with second gear 9, are convenient for loading and unloading；
And 15 inner tip of the second bearing sheet in 10 outside of second support bar is provided with sliding slot 12,10 outer wall of second support bar
Upper end be horizontally installed with second gear 9, and the top of second support bar 10 is horizontally installed with the first bearing sheet 11；
The surrounding of first bearing sheet, 11 bottom end is vertically-mounted first support bar 4, and 4 bottom end of first support bar is equipped with
The sliding block 5 to match with sliding slot 12, convenient for improving stability；
The middle position on 11 top of the first bearing sheet is horizontally installed with the 6th bearing sheet 36, and 36 top of the 6th bearing sheet
Both ends pass through articulated shaft and be hinged with the 4th connecting rod 37, the top of the 4th connecting rod 37 has been respectively articulated with set by articulated shaft
Cylinder 35 and the 5th connecting rod 38, and the top of the 5th connecting rod 38 is hinged with the 7th bearing sheet 39, the 7th cushion cap by articulated shaft
The top of plate 39 is connected with 2 bottom end of protective housing, convenient for buffering；
The inner horizontal of sleeve 35 is equipped with the 6th spring 40, and the 6th spring 40 is far from 38 one end of the 5th connecting rod level
Third connecting rod 34 through sleeve 35 is installed, 34 outer wall of third connecting rod is horizontally installed with the 5th to be connected with sleeve 35
Spring 33, convenient for buffering；
The 11 top both ends of the first bearing sheet of 6th bearing sheet, 36 two sides are horizontally installed with the 5th bearing sheet 31, and the 5th
The middle position on 31 top of bearing sheet is hinged with the second connecting rod 32 by articulated shaft, and the top of the second connecting rod 32 passes through
Articulated shaft is hinged with first connecting rod 28, convenient for buffering；
The top of first connecting rod 28 is hinged with the 4th bearing sheet 29 by articulated shaft, and first connecting rod 28 passes through the 4th
Spring 30 is connected with the second connecting rod 32, and the top of the 4th bearing sheet 29 is connected with 2 bottom end of protective housing, convenient for buffering；
The both ends homogeneous vertical on 11 top of the first bearing sheet is equipped with the first spring 3, and the top of the first spring 3 is equipped with
Protective housing 2；
The positive both ends of protective housing 2 pass through articulated shaft and are hinged with door body 22, and the lower end Jun Shui of 2 inside two sidewalls of protective housing
Safety is equipped with electric pushrod 25, and the model of the electric pushrod 25 can be NKLA8 electric pushrod, is convenient for loading and unloading；
Electric pushrod 25 has the first fixed ring 24 far from 2 one end of protective housing is vertically-mounted, and the first fixed ring 24 is far from electricity
The side wall even level of dynamic 25 side of push rod is equipped with third spring 27, and the one end of third spring 27 far from the first fixed ring 24 is perpendicular
The second fixed ring 26 directly is installed, convenient for protection；15 top of the second bearing sheet of 10 side of second support bar is equipped with support frame
19；
The middle position homogeneous vertical on 19 top of support frame is equipped with the second cylinder 20, and the model of second cylinder 20 can
Think ACQ50X5 cylinder, and vertically-mounted the second hydraulic stem 21 having through 19 top of support frame of 20 output end of the second cylinder, the
The bottom end of two hydraulic stems 21 is equipped with staking punch 1, easy to process；
And second bearing sheet 15 top of the second support bar 10 far from 19 side of support frame is vertically-mounted the first cylinder 14,
The model of second cylinder 14 can be DGPL-32-300-PPV-A-B-KF-GK-SHTKC cylinder, the output of the first cylinder 14
Hold it is vertically-mounted have the first hydraulic stem 17, and the 15 top homogeneous vertical of the second bearing sheet of 14 two sides of the first cylinder is equipped with second
The top of spring 13, the first hydraulic stem 17 and second spring 13 is horizontally installed with third bearing sheet 16, and third bearing sheet 16 pushes up
The both ends at end are horizontally installed with conveyer belt 18 by mounting rack, and 16 top of third bearing sheet of 18 side of conveyer belt passes through pedestal water
Safety is equipped with the second motor 23, and the model of second motor 23 can be Y90S-6 motor.
Working principle: when this is equipped with the steel steel-smelting device of safety protective mechanisms in use, external power supply is first connected, when need
When carrying out loading and unloading, first starts first motor 7, the first cylinder 14 and the second motor 23, driven under the action of first motor 7
For the rotation of shaft 8 to drive first gear 6 to rotate, first gear 6 drives the rotation of second gear 9 to drive second support bar 10
It being rotated with the first bearing sheet 11, the first bearing sheet 11 drives first support bar 4 by sliding block 5 in 12 internal slide of sliding slot, thus
So that door body 22 turns to 18 side of conveyer belt, drive the first hydraulic stem 17 flexible to drive under the action of the first cylinder 14
Third bearing sheet 16 and conveyer belt 18 move up and down, and the rotation of conveyer belt 18 is driven under the action of the second motor 23 consequently facilitating suitable
For the charging and discharging mechanism of different height, when needing to carry out punching press, starts electric pushrod 25 and the second cylinder 20, pushed away electronic
Drive the first fixed ring 24 mobile so that the second fixed ring 26 is fitted closely with steel block, in the second gas under the action of bar 25
Drive the second about 21 hydraulic stem flexible to drive staking punch 1 to move up and down under the action of cylinder 20, consequently facilitating in protective housing
2, it prevents from being displaced when punching press under the action of door body 22 and electric pushrod 25 and the case where scrap iron from splashing, when carrying out punching press,
Since the impact force that staking punch 1 generates is delivered separately to the 4th bearing sheet 29 and the 7th bearing sheet 39, the 4th cushion cap through protective housing 2
Plate 29 transmits the force to first connecting rod 28 to drive first connecting rod 28 and the second connecting rod 32 under the action of articulated shaft
Rotation, the 7th bearing sheet 39 transmit the force to the 5th connecting rod 38 to drive 38 He of the 5th connecting rod under the action of articulated shaft
4th connecting rod 37 is rotated and then is slided in third connecting rod 34 with moving sleeve 35, thus in the first spring 3, the 4th spring
30, the impact force is eliminated under the effect of the elastic force of the 5th spring 33 and the 6th spring 40, consequently facilitating bumper and absorbing shock, extends this and be equipped with
The service life of the steel steel-smelting device of safety protective mechanisms, the above are whole working principles of the invention.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of steel steel-smelting device equipped with safety protective mechanisms, including protective housing (2), the first bearing sheet (11) and second are held
Platen (15), it is characterised in that: one end of the second bearing sheet (15) inner tip has second by the way that bearing is vertically-mounted
Strut (10), and the second bearing sheet (15) inner tip on the outside of second support bar (10) is provided with sliding slot (12), described second
The upper end of support rod (10) outer wall is horizontally installed with second gear (9), and the top of second support bar (10) is horizontally installed with
The both ends homogeneous vertical of one bearing sheet (11), the first bearing sheet (11) top is equipped with the first spring (3), and the first spring
(3) top is equipped with protective housing (2), and the second bearing sheet (15) top of second support bar (10) side is equipped with support
Frame (19), and second support bar (10) vertically-mounted has the first gas far from the second bearing sheet (15) top of support frame (19) side
Cylinder (14), the output end of first cylinder (14) is vertically-mounted to be had the first hydraulic stem (17), and the first cylinder (14) two sides
Second bearing sheet (15) top homogeneous vertical is equipped with second spring (13), first hydraulic stem (17) and second spring (13)
Top be horizontally installed with third bearing sheet (16), and the both ends on third bearing sheet (16) top are horizontally installed with by mounting rack
Third bearing sheet (16) top of conveyer belt (18), conveyer belt (18) side is horizontally installed with the second motor by pedestal
(23)。
2. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 1, it is characterised in that: described
The second bearing sheet (15) top of two support rods (10) far from the first cylinder (14) side is vertically-mounted to be had first motor (7), and
The output end of first motor (7) is vertically-mounted to be had shaft (8), and shaft (8) the outer wall upper end is horizontally installed with and second gear
(9) first gear (6) to match.
3. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 1, it is characterised in that: described
The surrounding of one bearing sheet (11) bottom end is vertically-mounted to be had first support bar (4), and first support bar (4) bottom end is equipped with and slides
The sliding block (5) that slot (12) matches.
4. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 1, it is characterised in that: described
The middle position on one bearing sheet (11) top is horizontally installed with the 6th bearing sheet (36), and the two of the 6th bearing sheet (36) top
End is hinged with the 4th connecting rod (37) by articulated shaft, and the top of the 4th connecting rod (37) is respectively articulated with by articulated shaft
There are sleeve (35) and the 5th connecting rod (38), and the top of the 5th connecting rod (38) is hinged with the 7th bearing sheet by articulated shaft
(39), the top of the 7th bearing sheet (39) is connected with protective housing (2) bottom end.
5. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 4, it is characterised in that: the set
The inner horizontal of cylinder (35) is equipped with the 6th spring (40), and the 6th spring (40) is pacified far from the 5th connecting rod (38) one end level
Equipped with the third connecting rod (34) for running through sleeve (35), third connecting rod (34) outer wall is horizontally installed with and sleeve (35) phase
5th spring (33) of connection.
6. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 4, it is characterised in that: described
First bearing sheet (11) top both ends of six bearing sheets (36) two sides are horizontally installed with the 5th bearing sheet (31), and the 5th cushion cap
The middle position on plate (31) top is hinged with the second connecting rod (32) by articulated shaft, and the top of the second connecting rod (32) is logical
It crosses articulated shaft and is hinged with first connecting rod (28).
7. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 6, it is characterised in that: described
The top of one connecting rod (28) is hinged with the 4th bearing sheet (29) by articulated shaft, and first connecting rod (28) passes through the 4th spring
(30) it is connected with the second connecting rod (32), the top of the 4th bearing sheet (29) is connected with protective housing (2) bottom end.
8. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 1, it is characterised in that: described anti-
Protecting box (2) front both ends pass through articulated shaft and are hinged with door body (22), and the horizontal peace in lower end of the internal two sidewalls of protective housing (2)
Equipped with electric pushrod (25).
9. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 8, it is characterised in that: the electricity
Dynamic push rod (25) have the first fixed ring (24) far from protective housing (2) one end is vertically-mounted, and the first fixed ring (24) is far from electronic
The side wall even level of push rod (25) side is equipped with third spring (27), and the third spring (27) is far from the first fixed ring
(24) one end is vertically-mounted the second fixed ring (26).
10. a kind of steel steel-smelting device equipped with safety protective mechanisms according to claim 1, it is characterised in that: described
The middle position homogeneous vertical on support frame (19) top is equipped with the second cylinder (20), and the second cylinder (20) output end is vertical
The second hydraulic stem (21) through support frame (19) top is installed, the bottom end of second hydraulic stem (21) is equipped with staking punch
(1)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833630.XA CN110434213A (en) | 2019-09-04 | 2019-09-04 | A kind of steel steel-smelting device equipped with safety protective mechanisms |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833630.XA CN110434213A (en) | 2019-09-04 | 2019-09-04 | A kind of steel steel-smelting device equipped with safety protective mechanisms |
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| CN110434213A true CN110434213A (en) | 2019-11-12 |
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Application publication date: 20191112 |