CN111715761A - Automatic change staple bolt mold processing - Google Patents
Automatic change staple bolt mold processing Download PDFInfo
- Publication number
- CN111715761A CN111715761A CN202010651512.XA CN202010651512A CN111715761A CN 111715761 A CN111715761 A CN 111715761A CN 202010651512 A CN202010651512 A CN 202010651512A CN 111715761 A CN111715761 A CN 111715761A
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- China
- Prior art keywords
- fixedly connected
- plate
- feeding
- base
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete 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
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
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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
- B21D43/13—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by linearly moving tables
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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
- B21D43/18—Advancing work in relation to the stroke of the die or tool by means in pneumatic or magnetic engagement with the work
-
- 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
- B21D43/20—Storage arrangements; Piling or unpiling
-
- 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
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses an automatic hoop machining die and relates to the technical field of hoop machining. The stamping device comprises a base, wherein a fixing frame is fixedly connected to the base, a stamping cylinder is fixedly connected to the fixing frame, and an upper die is fixedly connected to a piston rod of the stamping cylinder; the base is provided with a slide rail, the slide rail is symmetrically and slidably connected with a pair of lower dies, the side surface of the fixing frame is fixedly connected with a cross beam, the cross beam is fixedly connected with a material taking cylinder, a piston rod of the material taking cylinder is fixedly connected with an electromagnet, the middle position of the cross beam is fixedly connected with a vertical beam, the vertical beam is fixedly connected with a material pushing cylinder, and a piston rod of the material pushing cylinder is fixedly connected with a material pushing assembly; the side surface of the base is fixedly connected with a feeding device below the cross beam. According to the invention, the workpiece to be processed is pushed to the processing table through the pushing assembly, and the processed and formed hoop is pushed away, so that the automation degree of hoop processing is improved, and the labor cost is reduced.
Description
Technical Field
The invention belongs to the technical field of hoop processing, and particularly relates to an automatic hoop processing mold.
Background
With the progress of science and technology and the development of society, the machining industry in China is rapidly developed, and the machining equipment is rapidly developed along with the rapid development of China. In the communication power industry, in the projects of laying and erecting cables or optical cables and the like, a plurality of iron accessories are used. The iron accessories are generally iron parts on concrete poles and their wiring, such as various hoops, through nails, fork beams, transverse beams, tie rods, wire bars, etc. The manufacturing equipment of the domestic iron accessories is rough in manufacturing, simple in function, complex in manufacturing process and low in automation degree, a large amount of labor is used in general factories for manufacturing the iron accessories, and products are produced by means of simple and crude equipment and a semi-manual manufacturing mode. The product made by hand has the advantages of irregular product quality, strange appearance size, no precision, personal safety accidents in the manufacturing field, low production efficiency and high labor intensity of workers.
The existing hoop machining die is low in automation degree, manual feeding and discharging are needed, machining efficiency is low, certain danger exists, the existing hoop is manufactured and machined through dies, different dies are needed according to hoop specifications during hoop manufacturing, the needed dies are more, and die cost is high.
Disclosure of Invention
The invention aims to provide a hoop machining die which is high in automation degree and suitable for different specifications.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an automatic hoop machining die which comprises a base, wherein a fixing frame is fixedly connected to the base, a stamping cylinder is fixedly connected to the fixing frame, and an upper die is fixedly connected to a piston rod of the stamping cylinder; the base is provided with a slide rail, the slide rail is symmetrically and slidably connected with a pair of lower dies, the side surfaces of the lower dies are connected with threaded rods, and the threaded rods are in threaded connection with the fixing frame; the side surface of the fixing frame is fixedly connected with a cross beam, a material taking cylinder is fixedly connected to the cross beam, an electromagnet is fixedly connected to a piston rod of the material taking cylinder, a vertical beam is fixedly connected to the middle position of the cross beam, a material pushing cylinder is fixedly connected to the vertical beam, and a material pushing assembly is fixedly connected to a piston rod of the material pushing cylinder; the base side is located crossbeam below fixedly connected with material feeding unit, material feeding unit includes a pay-off guide rail, the pay-off guide rail with base side fixed connection, sliding connection has a delivery sheet on the guide rail pay-off, a plurality of material subassemblies of deciding of fixedly connected with on the delivery sheet, it includes a pair of mounting to decide the material subassembly, two be connected between the mounting and remain the processing work piece.
Further, the bottom of the base is fixedly connected with a supporting column.
Furthermore, the material pushing assembly comprises a fixing plate, the fixing plate is fixedly connected with the piston rod of the third air cylinder, the fixing plate is fixedly connected with a material pushing plate through a connecting rod, a pair of strip-shaped holes are symmetrically formed in the material pushing plate, and a feeding rod and a material pushing rod are fixedly connected in the strip-shaped holes.
Further, the lower die is fixedly connected with the base through a first fastening bolt, a connecting sleeve is arranged on the side face of the lower die and rotatably connected with the threaded rod, a stamping table is arranged on the lower die, a through hole matched with the feeding rod is formed in the stamping table, and a slope is arranged at the feeding end of the stamping table.
Furthermore, a screw rod is connected to the feeding guide rail, the screw rod is in threaded connection with the feeding plate, and one end of the screw rod is connected with a motor.
Further, be equipped with the boss along its length direction on the delivery sheet, the mounting includes a bottom plate, bottom plate bottom symmetric connection has a pair of limiting plate, the limiting plate pass through second fastening bolt with boss fixed connection, fixedly connected with L template and a riser on the bottom plate.
Further, one end of the threaded rod is fixedly connected with a handle.
The invention has the following beneficial effects:
1. the base is provided with the slide rail, the lower dies are connected with the slide rail in a sliding manner, the lower dies are connected with the threaded rods, and the threaded rods are in threaded connection with the fixing frame, so that the hoops with different specifications are processed by adjusting the distance between the two lower dies;
2. according to the invention, the workpieces to be processed are placed in the material fixing assembly in order, the motor drives the feeding plate to move to the designated position, the material taking cylinder drives the electromagnet to take away the workpieces to be processed, then the workpieces to be processed are pushed to the processing table through the material pushing assembly, and meanwhile, the processed and formed hoop is pushed away, so that the automation degree of hoop processing is improved, and the labor cost is reduced.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is another schematic angle view of FIG. 1;
FIG. 3 is a schematic structural view of a feeding device;
FIG. 4 is a schematic structural view of the fixing member;
FIG. 5 is a schematic view of the pusher assembly;
FIG. 6 is a schematic structural view of a lower mold;
in the drawings, the components represented by the respective reference numerals are listed below:
1-base, 101-fixing frame, 102-supporting column, 103-sliding rail, 104-cross beam, 105-vertical beam, 2-feeding guide rail, 201-screw rod, 202-motor, 3-feeding plate, 301-boss, 4-fixing piece, 401-bottom plate, 402-limiting plate, 403-L-shaped plate, 404-vertical plate, 5-pushing assembly, 501-fixing plate, 502-connecting rod, 503-pushing plate, 504-strip hole, 505-feeding rod, 506-pushing rod, 6-lower die, 601-connecting sleeve, 602-punching table, 603-through hole, 7-threaded rod, 701-handle, 8-upper die, 9-punching cylinder, 10-fetching cylinder, 11-pushing cylinder and 12-electromagnet, 13-first fastening bolt, 14-second fastening bolt, 15-workpiece to be processed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "bottom," "top," "middle," "length," "inner," "around," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the present invention.
Referring to fig. 1-6, the invention relates to an automatic hoop processing mold, which comprises a base 1, wherein a fixing frame 101 is fixedly connected to the base 1, the fixing frame 101 is of an inverted U-shaped structure, a stamping cylinder 9 is fixedly connected to the upper end of the fixing frame 101, and an upper mold 8 is fixedly connected to a piston rod of the stamping cylinder 9; a slide rail 103 is arranged between fixed frames 101 on a base 1, a pair of lower dies 6 are symmetrically and slidably connected to the slide rail 103, a threaded rod 7 is connected to the side surface of each lower die 6, the threaded rod 7 is in threaded connection with the fixed frames 101, the distance between the two lower dies 6 is adjusted by rotating the threaded rod 7, a cross beam 104 is fixedly connected to the side surface of the fixed frame 101, a material taking cylinder 10 is fixedly connected to the cross beam 104, an electromagnet 12 is fixedly connected to a piston rod of the material taking cylinder 10, the material taking cylinder 10 drives the electromagnet 12 to move downwards, the electromagnet 12 is electrified during material taking, the electromagnet 12 is electrified and disconnected during material discharging, a vertical beam 105 is fixedly connected to the middle position of the cross beam 104, a material pushing cylinder 11 is fixedly connected; the side surface of the base 1 is fixedly connected with a feeding device below the cross beam 104, and the electromagnet 12 takes materials in the feeding device.
Preferably, a supporting column 102 is fixedly connected to the bottom of the base 1.
Preferably, one end of the threaded rod 7 is fixedly connected with a handle 701, so that adjustment is facilitated.
Referring to fig. 3-4, the feeding device includes a feeding rail 2, the feeding rail 2 is fixedly connected to a side surface of the base 1, the feeding rail 2 is slidably connected to a feeding plate 3, the feeding plate 3 is fixedly connected to three material fixing assemblies, each material fixing assembly includes a pair of fixing members 4, and a stacked workpiece 15 to be processed is placed between the two fixing members 4.
Preferably, the feeding plate 3 is provided with a boss 301 along the length direction thereof, the fixing member 4 comprises a bottom plate 401, the bottom of the bottom plate 401 is symmetrically connected with a pair of limiting plates 402, the limiting plates 402 are fixedly connected with the boss 301 through second fastening bolts 14, and the bottom plate 401 is fixedly connected with an L-shaped plate 403 and a vertical plate 404, so that the workpiece 15 to be processed can be conveniently placed.
Preferably, a lead screw 201 is connected to the feeding guide rail 2, the lead screw 201 is in threaded connection with the feeding plate 3, one end of the lead screw 201 is connected with a motor 202, and the feeding plate 3 is driven to move to a specified position through the motor 202.
Referring to fig. 5, preferably, the pushing assembly 5 includes a fixing plate 501, the fixing plate 501 is fixedly connected to the piston rod of the third cylinder 11, the fixing plate 501 is fixedly connected to a pushing plate 503 through a connecting rod 502, the pushing plate 503 is symmetrically provided with a pair of strip holes 504, each strip hole 504 is fixedly connected to a feeding rod 505 and a pushing rod 506 through bolts, so that the positions of the feeding rod 505 and the pushing rods 506 can be adjusted to adapt to processing of different specifications of hoops, the pushing rods 506 are used for pushing out hoops formed on the lower mold 6, and the workpiece 15 to be processed is placed on the feeding rod 505 through the electromagnet 12 and pushed onto the lower mold 6 through the pushing plate 503.
Referring to fig. 6, preferably, the lower mold 6 is fixedly connected to the base 1 through a first fastening bolt 13, so that the lower mold 6 is kept stable during hoop machining, a connecting sleeve 601 rotatably connected to the threaded rod 7 is disposed on a side surface of the lower mold 6, a stamping table 602 is disposed on the lower mold 6, a through hole 603 matched with the feeding rod 505 is disposed on the stamping table 602, and a slope is disposed at a feeding end of the stamping table 602, so as to push the workpiece 15 to be machined onto the stamping table 602.
One specific application of this embodiment is: when the hoop pushing device is used, workpieces to be machined are stacked in the positioning assembly in order, the motor 202 drives the feeding plate 3 to move to a specified position, the material taking cylinder 10 drives the electromagnet 12 to move downwards, the workpieces 15 to be machined are taken away, the material pushing cylinder 11 drives the material pushing assembly 5 to move forwards, when the material pushing assembly 5 moves below the electromagnet 12, the electromagnet 12 is powered off, the workpieces 15 to be machined are placed on the feeding rod 505, the material pushing assembly 5 continues to move, the material pushing rod 506 pushes off the machined hoops, meanwhile, the feeding rod 505 is inserted into the through hole 603, the material pushing plate 503 pushes the workpieces to be machined onto the punching table 602, then the material pushing assembly 5 moves backwards, the punching cylinder 9 drives the upper die 8 to machine the hoops, and the actions are repeated, so that the hoop machining efficiency is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides an automatic change staple bolt mold processing which characterized in that: the stamping device comprises a base (1), wherein a fixing frame (101) is fixedly connected to the base (1), a stamping cylinder (9) is fixedly connected to the fixing frame (101), and an upper die (8) is fixedly connected to a piston rod of the stamping cylinder (9);
a sliding rail (103) is arranged on the base (1), a pair of lower dies (6) is symmetrically and slidably connected to the sliding rail (103), a threaded rod (7) is connected to the side surface of each lower die (6), and the threaded rod (7) is in threaded connection with the fixing frame (101);
a cross beam (104) is fixedly connected to the side face of the fixing frame (101), a material taking cylinder (10) is fixedly connected to the cross beam (104), an electromagnet (12) is fixedly connected to a piston rod of the material taking cylinder (10), a vertical beam (105) is fixedly connected to the middle position of the cross beam (104), a material pushing cylinder (11) is fixedly connected to the vertical beam (105), and a material pushing assembly (5) is fixedly connected to a piston rod of the material pushing cylinder (11);
base (1) side is located crossbeam (104) below fixedly connected with material feeding unit, material feeding unit includes a pay-off guide rail (2), pay-off guide rail (2) with base (1) side fixed connection, sliding connection has a delivery sheet (3) on pay-off guide rail (2), a plurality of material subassemblies of deciding of fixedly connected with on delivery sheet (3), it includes a pair of mounting (4) to decide the material subassembly, two it remains to process work piece (15) to be connected between mounting (4).
2. The automatic hoop machining die is characterized in that a supporting column (102) is fixedly connected to the bottom of the base (1).
3. The automatic hoop machining die is characterized in that the pushing assembly (5) comprises a fixing plate (501), the fixing plate (501) is fixedly connected with a piston rod of the third cylinder (11), the fixing plate (501) is fixedly connected with a pushing plate (503) through a connecting rod (502), a pair of strip-shaped holes (504) are symmetrically formed in the pushing plate (503), and a feeding rod (505) and a pushing rod (506) are fixedly connected in the strip-shaped holes (504).
4. The automatic hoop machining die as claimed in claim 3, wherein the lower die (6) is fixedly connected with the base (1) through a first fastening bolt (13), a connecting sleeve (601) rotatably connected with the threaded rod (7) is arranged on the side face of the lower die (6), a punching table (602) is arranged on the lower die (6), a through hole (603) matched with the feeding rod (505) is arranged on the punching table (602), and a slope is arranged at the feeding end of the punching table (602).
5. The automatic hoop machining die as claimed in claim 1, 2 or 4, wherein a screw rod (201) is connected to the feeding guide rail (2), the screw rod (201) is in threaded connection with the feeding plate (3), and one end of the screw rod (201) is connected with a motor (202).
6. The automatic hoop machining die is characterized in that a boss (301) is arranged on the feeding plate (3) along the length direction of the feeding plate, the fixing piece (4) comprises a bottom plate (401), a pair of limiting plates (402) are symmetrically connected to the bottom of the bottom plate (401), the limiting plates (402) are fixedly connected with the boss (301) through second fastening bolts (14), and an L-shaped plate (403) and a vertical plate (404) are fixedly connected to the bottom plate (401).
7. The automatic hoop machining die as claimed in claim 1, 2, 4 or 6, wherein a handle (701) is fixedly connected to one end of the threaded rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010651512.XA CN111715761A (en) | 2020-07-08 | 2020-07-08 | Automatic change staple bolt mold processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010651512.XA CN111715761A (en) | 2020-07-08 | 2020-07-08 | Automatic change staple bolt mold processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111715761A true CN111715761A (en) | 2020-09-29 |
Family
ID=72572039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010651512.XA Withdrawn CN111715761A (en) | 2020-07-08 | 2020-07-08 | Automatic change staple bolt mold processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111715761A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318027A (en) * | 2020-10-19 | 2021-02-05 | 济南誉腾工贸有限公司 | Staple bolt strengthening rib welding is with two welder welding set |
| CN112958703A (en) * | 2021-02-02 | 2021-06-15 | 合肥正特机械有限公司 | A stamping device for staple bolt integrated into one piece processing |
| CN113118279A (en) * | 2021-03-11 | 2021-07-16 | 合肥正特机械有限公司 | Staple bolt stamping forming all-in-one based on it is automatic |
| CN113231547A (en) * | 2021-03-11 | 2021-08-10 | 合肥正特机械有限公司 | Staple bolt stamping die subassembly based on automatic material returned |
| CN114178425A (en) * | 2021-11-24 | 2022-03-15 | 徐州威德金属制品有限公司 | Work piece punching machine with automatic discharging function |
-
2020
- 2020-07-08 CN CN202010651512.XA patent/CN111715761A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318027A (en) * | 2020-10-19 | 2021-02-05 | 济南誉腾工贸有限公司 | Staple bolt strengthening rib welding is with two welder welding set |
| CN112958703A (en) * | 2021-02-02 | 2021-06-15 | 合肥正特机械有限公司 | A stamping device for staple bolt integrated into one piece processing |
| CN113118279A (en) * | 2021-03-11 | 2021-07-16 | 合肥正特机械有限公司 | Staple bolt stamping forming all-in-one based on it is automatic |
| CN113231547A (en) * | 2021-03-11 | 2021-08-10 | 合肥正特机械有限公司 | Staple bolt stamping die subassembly based on automatic material returned |
| CN114178425A (en) * | 2021-11-24 | 2022-03-15 | 徐州威德金属制品有限公司 | Work piece punching machine with automatic discharging function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200929 |