CN112077170A - Blanking and stamping integrated device for handle ring steel plate on pressure container tank - Google Patents
Blanking and stamping integrated device for handle ring steel plate on pressure container tank Download PDFInfo
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- CN112077170A CN112077170A CN202010778842.5A CN202010778842A CN112077170A CN 112077170 A CN112077170 A CN 112077170A CN 202010778842 A CN202010778842 A CN 202010778842A CN 112077170 A CN112077170 A CN 112077170A
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- Prior art keywords
- leveling
- punching
- roller
- stamping
- steel plate
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Classifications
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- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
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- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
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- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
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- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
- B21D43/287—Devices for handling sheet or strip material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a blanking and stamping integrated device for a handle ring steel plate on a pressure container tank, which comprises an unreeling device, a leveling device and a stamping device which are sequentially and correspondingly arranged, wherein the leveling device comprises a leveling seat frame, a horizontal leading-in roller, a vertical leading-in roller, a leveling press roller group, a vertical leading-out roller, a leveling driving motor and a leveling chain wheel group; the lower sheet stock, the punching press and the cutting of the upper handle ring steel plate can be integrally completed, the automation degree is high, and the industrial production requirement can be met.
Description
Technical Field
The invention relates to a stamping device, in particular to an integral device for blanking and stamping a handle ring steel plate on a pressure container tank.
Background
The existing pressure container structure is divided into a lower tank body and an upper handle ring, the upper handle ring is also designed into a ring-shaped structure coaxial with the lower tank body, and is provided with a handle hole and a hanging connection hole, so that manual and mechanical shipment is facilitated. The upper handle ring is conventionally made as follows: after the steel plate belt is blanked, the single-piece structure of the fixed length is designed by manual cutting, and the single-piece structure is independently punched, so that the process is complex, the manual single-piece punching is time-consuming and labor-consuming, and the industrial production is not facilitated.
Disclosure of Invention
The invention provides an integrated automatic sheet material feeding, stamping and cutting integrated device for blanking and stamping a steel plate of an upper handle ring of a pressure container.
The technical scheme adopted by the invention is as follows: the utility model provides an integrative device of pressure vessel jar upper handle circle steel sheet unloading punching press which characterized in that: the unwinding device comprises an unwinding device, a leveling device and a stamping device which are sequentially and correspondingly arranged, wherein the unwinding device comprises an unwinding support, an unwinding wheel and an unwinding motor, and the unwinding motor drives the unwinding wheel which is rotatably supported on the unwinding support; the leveling device comprises a leveling seat frame, a horizontal leading-in roller, a vertical leading-in roller, a leveling compression roller group, a vertical leading-out roller, a leveling driving motor and a leveling chain wheel group, wherein the horizontal leading-in roller is horizontally arranged at the front end of the leveling seat frame and vertically corresponds to the unreeling direction of the unreeling wheel, the two vertical leading-in rollers are vertically arranged on the leveling seat frame behind the horizontal leading-in roller, the leveling compression roller group is horizontally arranged on the leveling seat frame behind the vertical leading-in roller, the two vertical leading-out rollers are vertically arranged at the rear end of the leveling seat frame, the leveling compression roller group is formed by arranging an upper leveling compression roller and a lower leveling compression roller in a staggered mode in parallel, the leveling compression rollers are supported on the side walls of two sides of the leveling seat frame in a cross mode and penetrate through a plurality of transmission gears which are sequentially meshed for transmission, and the leveling driving motor is arranged above the leveling; the punching device comprises a hydraulic punching machine, a lower punching die and an upper punching die, wherein the lower punching die is arranged on a base of the hydraulic punching machine and is provided with a feed opening corresponding to the position of an orifice of an upper handle ring unfolding structure, the upper punching die comprises an upper die base, a punching cutting edge, a return spring, a soft glass hydraulic oil storage column, a pressing seat plate and a cutting edge, the upper die base is arranged on a punching head of the hydraulic punching machine, a downward hydraulic cylinder is arranged at the center of the upper die base, a push rod of the hydraulic cylinder is downwards connected with the punching cutting edge, the back of the punching cutting edge and the upper die base are connected through a plurality of springs in a pulling manner, the periphery of the hydraulic cylinder of the upper die base is downwards uniformly connected with a plurality of soft glass hydraulic oil storage columns, the lower parts of the plurality of soft glass hydraulic oil storage columns are connected with the pressing seat plate, a cutter edge is arranged on the pressing seat plate corresponding to, the soft glass hydraulic oil storage column is communicated to the hydraulic cylinder body through a hydraulic channel arranged in the upper die base, and the rear side of the upper die base is provided with a cutting edge corresponding to the cutting edge of the rear side edge of the lower die base.
Furthermore, a transition support frame is arranged between the leveling device and the stamping device, and a transition support shaft parallel to the leveling press roller is arranged on the transition support frame.
Furthermore, a lower guide hole corresponding to the guide post is formed in the lower stamping die.
Furthermore, the stamping device also comprises a meter counter which is arranged on a hydraulic stamping machine base in front of the stamping lower die.
Further, the stamping device further comprises a front stamping leveling roller, and the front stamping leveling roller is arranged on a base of the hydraulic stamping machine in front of the lower stamping die.
Further, the leveling roller before stamping is of an upper single roller or a lower single roller or an upper roller and a lower roller structure.
Furthermore, the stamping device also comprises two vertical leading-in rollers before stamping, and the two vertical leading-in rollers before stamping are vertically arranged on a hydraulic stamping machine base in front of the stamping lower die.
Furthermore, the soft glass hydraulic oil storage column is of a soft glass cylinder structure, and an upper die base and a pressing seat plate are respectively and hermetically bonded on the upper surface and the lower surface of the soft glass hydraulic oil storage column.
Selecting a steel plate strip coil with a fixed width according to the height size of the upper handle ring, and driving the steel plate strip coil to outwards unwind through an unwinding motor on a steel plate strip coil and an unwinding wheel; the steel plate belt is led between the two vertical leading-in rollers through the horizontal leading-in rollers, horizontal direction conveying is guaranteed not to deviate while horizontal leading-in is carried out, the steel plate belt is conveyed between the upper leveling pressing roller and the lower leveling pressing roller of the leveling pressing roller group through the two vertical leading-in rollers and is leveled through rolling, and the leveled steel plate belt is conveyed to a transition support shaft to be supported and transited to a punching device; when the handle ring is sent into the stamping device, the handle ring is limited by two vertical guide-in rollers before stamping and sent to the lower part of a meter counter for conveying and metering, and the length of the circumference of the upper handle ring is set; the steel plate strip is sent to a lower die base, after the length is counted, an unreeling motor stops unreeling, a hydraulic punching machine controls a punching lower die to press downwards, a pressing base plate descends to press the steel plate strip, meanwhile, guide posts are inserted into upper and lower guide holes of the punching lower die, a punching upper die continuously descends, the upper die base is in compression joint with a soft glass hydraulic oil storage post, the height direction of the soft glass hydraulic oil storage post is compressed and shortened, hydraulic oil in the soft glass hydraulic oil storage post is compressed and pressed into a hydraulic cylinder body through a hydraulic channel of the upper die base, so that a push rod pushes a punching cutting edge to press the punching steel plate strip downwards through a cutting edge against the action force of a spring, a handle hole and a hanging; after the hydraulic punching machine finishes punching, the hydraulic pressure resets, the punching upper die continuously rises, the upper die base firstly rises, the crimping of the soft glass hydraulic oil storage column and the pressing seat plate is released, the height of the soft glass hydraulic oil storage column is recovered, under the action of a spring, the punching blade retracts under the action of the spring, hydraulic oil in the cylinder body is returned to the soft glass hydraulic oil storage column through the push rod, the pressing seat plate is driven by the soft glass hydraulic oil storage column to rise along the guide column to separate the pressing of the punched steel plate strip, the unwinding motor works to feed the fixed-length steel plate strip again through the meter counter, and the next operation cycle is carried out; when the continuous operation, the fixed length steel plate area that the current punching press was accomplished sends out the punching press lower mould towards the back, and certain length steel plate area in back sends into the punching press lower mould and carries out punching press operation, and the cutting blade edge that cuts along with the upper die base decline corresponds and supports the side down and cut off the fixed length steel plate area that preceding punching press was accomplished down behind the die base, can accomplish lower sheet stock, punching press, the cutting of handle circle steel sheet in the integration, and degree of automation is high, can satisfy the industrialization production demand.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the stamping apparatus shown in FIG. 1;
FIG. 3 is a stamping and unfolding view of an upper handle ring steel plate according to the invention.
In the figure: the device comprises an unreeling support 1, an unreeling motor 2, an unreeling wheel 3, a leveling seat frame 4, a horizontal leading-in roller 5, a vertical leading-in roller 6, a leveling press roller set 7, a vertical leading-out roller 8, a leveling driving motor 9, a leveling chain wheel set 10, a transition support frame 11, a transition support shaft 12, a hydraulic punching machine 13, a punching lower die 14, a punching upper die 15, a punching front leveling roller 16, a punching front vertical leading-in roller 17, a meter counter 18, a lower guide hole 19, an upper die base 20, a punching knife edge 21, a blanking port 22, a soft glass hydraulic oil storage column 23, a pressing seat plate 24, a cutting knife edge 25, a guide column 26, a hydraulic cylinder 27, a hydraulic channel 28, a spring 29, a knife edge 30, a material collecting conveying belt 31, a material collecting box 32, a steel plate belt 33.
Detailed Description
The following further description is made in conjunction with the accompanying drawings and examples.
FIG. 1 shows: the blanking and punching integrated device for the handle ring steel plate on the pressure container tank comprises an unreeling support 1, an unreeling motor 2, an unreeling wheel 3, a leveling seat frame 4, a horizontal leading-in roller 5, a vertical leading-in roller 6, a leveling press roller set 7, a vertical leading-out roller 8, a leveling driving motor 9, a leveling chain wheel set 10, a transition support frame 11, a transition support shaft 12, a hydraulic punching machine 13, a lower punching die 14, an upper punching die 15, a front leveling roller 16, a front vertical leading-in roller 17, a meter counter 18, an upper die base 20, a punching knife edge 21, a soft glass hydraulic oil storage column 23, a pressing seat plate 24, a cutting knife edge 25, a guide column 26, a hydraulic cylinder 27, a hydraulic channel 28, a material receiving spring 29, a material receiving conveying belt 31, a box 32, a steel plate belt 33 and a blanking port.
The unwinding wheel 3 is wound with a steel plate strip 33, and the unwinding motor 2 drives the unwinding wheel 3 supported on the unwinding support 1 to rotate; the unreeling wheel 3 unreels the steel plate strip 3 towards the leveling seat frame 4, the horizontal leading-in roller 5 is horizontally arranged at the front end of the leveling seat frame and vertically corresponds to the unreeling direction of the unreeling wheel, the two vertical leading-in rollers 6 are vertically arranged on the leveling seat frame behind the horizontal leading-in rollers, the leveling press roller group 7 is horizontally arranged on the leveling seat frame 4 behind the vertical leading-in rollers, the two vertical leading-out rollers 8 are vertically arranged at the rear end of the leveling seat frame, the leveling press roller group is formed by arranging an upper leveling press roller and a lower leveling press roller in a parallel and staggered mode, the leveling press rollers are supported on the side walls of two sides of the leveling seat frame in a penetrating mode and penetrate through a plurality of transmission gears which are sequentially meshed and driven, and the leveling drive motor 9 is arranged above the leveling seat frame and drives any transmission gear through the; the steel plate belt which is sent out by the two vertical leading-out rollers 8 in a limiting and unreeling way is sent to a transition support frame 11 at the rear part of the steel plate belt and is provided with a transition support shaft 12 which is parallel to a leveling press roller for transition and is sent to a hydraulic punching machine 13, a horizontal punching front leveling roller 16, two vertical punching front vertical leading-in rollers 17 and a meter counter 18 are sequentially arranged on a base of the hydraulic punching machine from front to back, a lower guide hole 19 and a feed opening 22 are arranged on a punching lower die 14 of the hydraulic punching machine, the punching upper die 15 is a punching head of the hydraulic punching machine, a downward hydraulic cylinder 27 is arranged at the center of an upper die base 20 of the punching upper die 15, a push rod of the hydraulic cylinder is downwards connected with a punching knife edge 21, the shapes of the punching knife edge 21 and the feed opening 22 correspond to the shapes of a manual control and hanging hole on an upper handle ring steel plate (refer to figure 3), the back part of the punching knife edge 21 is connected with the upper die, the soft glass hydraulic oil storage column is of a soft glass cylinder structure, an upper die base and a press-fit base plate are respectively and hermetically bonded on the upper surface and the lower surface of the soft glass hydraulic oil storage column, the lower parts of the soft glass hydraulic oil storage columns are connected with a press-fit base, 24, a knife edge 30 is arranged on the press-fit base plate corresponding to a punching knife edge, a plurality of guide columns 26 corresponding to lower guide holes are arranged downwards on the periphery of a hydraulic cylinder of the upper die base, the guide columns are in guide cross connection with the press-fit base plate, the soft glass hydraulic oil storage columns are communicated to a cylinder body of the hydraulic cylinder through hydraulic channels arranged in the upper die base, and a cutting knife edge 25 corresponding to.
In the embodiment, a receiving conveyer belt 31 and a receiving box 32 are arranged behind the hydraulic punch 13 and used for conveying and collecting the cut steel plate belt with the fixed-length upper handle ring.
Claims (8)
1. The utility model provides an integrative device of pressure vessel jar upper handle circle steel sheet unloading punching press which characterized in that: the unwinding device comprises an unwinding device, a leveling device and a stamping device which are sequentially and correspondingly arranged, wherein the unwinding device comprises an unwinding support, an unwinding wheel and an unwinding motor, and the unwinding motor drives the unwinding wheel which is rotatably supported on the unwinding support; the leveling device comprises a leveling seat frame, a horizontal leading-in roller, a vertical leading-in roller, a leveling compression roller group, a vertical leading-out roller, a leveling driving motor and a leveling chain wheel group, wherein the horizontal leading-in roller is horizontally arranged at the front end of the leveling seat frame and vertically corresponds to the unreeling direction of the unreeling wheel, the two vertical leading-in rollers are vertically arranged on the leveling seat frame behind the horizontal leading-in roller, the leveling compression roller group is horizontally arranged on the leveling seat frame behind the vertical leading-in roller, the two vertical leading-out rollers are vertically arranged at the rear end of the leveling seat frame, the leveling compression roller group is formed by arranging an upper leveling compression roller and a lower leveling compression roller in a staggered mode in parallel, the leveling compression rollers are supported on the side walls of two sides of the leveling seat frame in a cross mode and penetrate through a plurality of transmission gears which are sequentially meshed for transmission, and the leveling driving motor is arranged above the leveling; the punching device comprises a hydraulic punching machine, a lower punching die and an upper punching die, wherein the lower punching die is arranged on a base of the hydraulic punching machine and is provided with a feed opening corresponding to the position of an orifice of an upper handle ring unfolding structure, the upper punching die comprises an upper die base, a punching cutting edge, a return spring, a soft glass hydraulic oil storage column, a pressing seat plate and a cutting edge, the upper die base is arranged on a punching head of the hydraulic punching machine, a downward hydraulic cylinder is arranged at the center of the upper die base, a push rod of the hydraulic cylinder is downwards connected with the punching cutting edge, the back of the punching cutting edge and the upper die base are connected through a plurality of springs in a pulling manner, the periphery of the hydraulic cylinder of the upper die base is downwards uniformly connected with a plurality of soft glass hydraulic oil storage columns, the lower parts of the plurality of soft glass hydraulic oil storage columns are connected with the pressing seat plate, a cutter edge is arranged on the pressing seat plate corresponding to, the soft glass hydraulic oil storage column is communicated to the hydraulic cylinder body through a hydraulic channel arranged in the upper die base, and the rear side of the upper die base is provided with a cutting edge corresponding to the cutting edge of the rear side edge of the lower die base.
2. The blanking and punching integrated device for the steel plate of the upper handle ring of the pressure vessel tank as claimed in claim 1 is characterized in that: and a transition support frame is arranged between the leveling device and the stamping device, and a transition support shaft parallel to the leveling press roller is arranged on the transition support frame.
3. The blanking and punching integrated device for the steel plate of the upper handle ring of the pressure vessel tank as claimed in claim 1 is characterized in that: and a lower guide hole corresponding to the guide post is formed in the lower stamping die.
4. The blanking and punching integrated device for the steel plate of the upper handle ring of the pressure vessel tank as claimed in claim 1 is characterized in that: the stamping device further comprises a meter counter which is arranged on a base of the hydraulic stamping machine in front of the stamping lower die.
5. The blanking and punching integrated device for the steel plate of the upper handle ring of the pressure vessel tank as claimed in claim 1 is characterized in that: the stamping device further comprises a front stamping leveling roller, and the front stamping leveling roller is arranged on a hydraulic stamping machine base in front of the lower stamping die.
6. The blanking and punching integrated device for the steel plate of the handle ring on the pressure vessel tank as claimed in claim 5 is characterized in that: the leveling roller before stamping is of an upper single roller or a lower single roller or an upper roller and a lower roller structure.
7. The blanking and punching integrated device for the steel plate of the upper handle ring of the pressure vessel tank as claimed in claim 1 is characterized in that: the stamping device further comprises two vertical leading-in rollers before stamping, and the two vertical leading-in rollers before stamping are vertically arranged on a hydraulic stamping machine base in front of the lower stamping die.
8. The blanking and punching integrated device for the steel plate of the upper handle ring of the pressure vessel tank as claimed in claim 1 is characterized in that: the soft glass hydraulic oil storage column is of a soft glass cylinder structure, and an upper die base and a pressing base plate are respectively and hermetically bonded on the upper surface and the lower surface of the soft glass hydraulic oil storage column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778842.5A CN112077170A (en) | 2020-08-05 | 2020-08-05 | Blanking and stamping integrated device for handle ring steel plate on pressure container tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778842.5A CN112077170A (en) | 2020-08-05 | 2020-08-05 | Blanking and stamping integrated device for handle ring steel plate on pressure container tank |
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| Publication Number | Publication Date |
|---|---|
| CN112077170A true CN112077170A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010778842.5A Pending CN112077170A (en) | 2020-08-05 | 2020-08-05 | Blanking and stamping integrated device for handle ring steel plate on pressure container tank |
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| Country | Link |
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| CN (1) | CN112077170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151623A (en) * | 2020-01-09 | 2020-05-15 | 滁州市精美家电设备有限责任公司 | Automatic stamping equipment of sheet metal punching press |
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| CN111151623A (en) * | 2020-01-09 | 2020-05-15 | 滁州市精美家电设备有限责任公司 | Automatic stamping equipment of sheet metal punching press |
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Application publication date: 20201215 |