CN111936247B - Method for preventing waste rising in waste part - Google Patents
Method for preventing waste rising in waste part Download PDFInfo
- Publication number
- CN111936247B CN111936247B CN201980022962.8A CN201980022962A CN111936247B CN 111936247 B CN111936247 B CN 111936247B CN 201980022962 A CN201980022962 A CN 201980022962A CN 111936247 B CN111936247 B CN 111936247B
- Authority
- CN
- China
- Prior art keywords
- scrap
- die
- punch
- projecting
- product
- 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.)
- Active
Links
Images
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Provided is a scrap rising prevention method capable of preventing, with a simple structure, a scrap portion of a scrap portion (120) including an outer peripheral portion of a steel sheet from rising, which is generated around a product portion. A method for preventing the rising of scraps of a scrap section is a method for preventing the rising of scraps of a scrap section (120) generated when a die (20) and a punch (10) are used to punch a product section (110) from a steel plate (10). The die (20) has a recess (21) in which a projection (122) projecting toward the product side is formed in the peripheral edge (121) of the scrap (120). The punch (10) has a convex portion (11) that forms a protruding portion (122) on the scrap portion (120) together with the concave portion. The projecting part 122 is formed on the peripheral edge part 121 of the scrap part on the product part side by using the projecting part 11 and the recessed part 21, and the projecting part 122 of the scrap part 120 is fitted into the recessed part 21 of the die 20 by using the projecting part 11 of the punch.
Description
Technical Field
The present invention relates to a method for preventing scrap rising in a scrap section.
Background
A blanking process for blanking a product from a steel plate using a die and a punch is known. In the punching process, a die having a cutting edge on an upper surface and a punch corresponding to the shape of the cutting edge of the die punch a product from a steel plate. The punching process produces a scrap portion, which is the remainder of the product punched out of the steel sheet.
The scrap portion generated by the punching may move together with the punch when the steel plate is punched by the punch. That is, during the punching process, so-called scrap rising may occur.
As a structure of a die and a punch for preventing the scrap from rising, for example, a scrap rising prevention die is disclosed in patent document 1 (japanese patent application laid-open No. 2012 and 110962). The scrap lift prevents the die from having a die tip on the upper surface of the die. The scrap rising prevention die is provided with a die cutting edge side surface having an inclination angle in a direction from the die cutting edge toward the lower surface of the die and toward the punch, thereby preventing the scrap of the scrap from rising.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2012-110962
Disclosure of Invention
Problems to be solved by the invention
However, when the scrap part is generated around the product part and includes the outer peripheral portion of the steel plate, the cutting edge of the die is not formed over the entire periphery of the scrap part, and therefore the scrap part cannot be restrained on the side surface of the cutting edge of the die.
The purpose of the present invention is to provide a scrap-rise prevention method for a scrap portion, which is capable of preventing, with a simple configuration, the rise of scrap in the scrap portion that includes the outer periphery of a steel sheet and that occurs around a product portion.
Means for solving the problems
A scrap rising prevention method for a scrap part according to claim 1 of the present invention is a scrap rising prevention method for a scrap part, which prevents a scrap part including an outer peripheral portion of a steel plate from rising around a product part generated when the product part is punched out of the steel plate using a die having a concave portion formed with a projection portion projecting toward the product part side when viewed from a punching direction at a peripheral portion on the product part side of the scrap part and a punch having a convex portion formed with the projection portion at the scrap part together with the concave portion of the die, the scrap rising prevention method for a scrap part including: a punching step of forming the projecting portion in a peripheral edge portion of the scrap portion on the product portion side by the projecting portion of the punch and the recessed portion of the die; and a slug-embedding step of embedding the projection of the slug into the recess of the die by the projection of the punch.
Effects of the invention
With the above configuration, it is possible to prevent, with a simple configuration, the rising of scraps of the scrap portion including the outer peripheral portion of the steel sheet, which are generated around the product portion.
Drawings
Fig. 1 is a cross-sectional view schematically showing the schematic configuration of a press working apparatus having a die and a punch used in the scrap rising prevention method of the present invention.
Fig. 2 is a plan view schematically showing a structure of a motor core member as an example of a product section.
Fig. 3 is a view schematically showing a manufacturing process of a motor core member made of a strip-shaped steel plate by a blanking process.
Fig. 4 is a diagram schematically showing the shape of a scrap portion removed from a strip steel plate by a blanking process.
Fig. 5 is a partially enlarged perspective view schematically showing the structure of a die for manufacturing the core member for a motor.
Fig. 6 is a partially enlarged plan view schematically showing the structure of a die and a punch for manufacturing the core member for a motor.
Fig. 7 is a processing flow of the punching process performed by the press working apparatus of fig. 1.
Fig. 8A is a diagram schematically showing states of a punch and a die at the time of positioning a steel plate in punching by the press working apparatus of fig. 1.
Fig. 8B is a view schematically showing states of the punch and the die in the scrap insertion step in the punching process performed by the press working apparatus of fig. 1.
Fig. 8C is a view schematically showing states of the punch and the die at the end of the blanking process in the blanking process performed by the press working apparatus of fig. 1.
Fig. 9 is a view schematically showing a state in which the scrap portion having the projection fitted in the recess of the die is inclined.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated. The dimensions of the structural members in the drawings do not faithfully represent the actual dimensions of the structural members, the dimensional ratios of the structural members, and the like.
In the present specification, the term "product portion" refers to a product obtained by punching a steel plate with a press working apparatus or the like. The "scrap portion" refers to a portion other than the product portion removed by punching the product portion.
The product of the invention is suitable for stators of motors and the like. In the following embodiments, an example will be described in which a steel plate in a strip shape is punched out by a press working apparatus and processed into a product portion as a motor core component, but the steel plate may be similarly used for products used for other applications.
In the following description, expressions such as "fixed", "connected", and "attached" (hereinafter, fixed and the like) include not only a case where components are directly fixed to each other, but also a case where components are fixed via other components. That is, in the following description, the expression "fixed" or the like includes the meaning of direct or indirect fixation of members or the like.
In the following description, the moving direction of the punch of the press working machine is referred to as "vertical direction", and the direction perpendicular to the vertical direction and along the surface of the steel plate is referred to as "lateral direction".
(Overall Structure)
Fig. 1 is a perspective view showing a schematic configuration of a press working apparatus 1 according to an embodiment of the present invention. The press working apparatus 1 performs punching work on a strip-shaped steel plate 100 to form a motor core member 110 as a product portion. Specifically, the press working apparatus 1 includes a punch 10 and a die 20 that are vertically opened and closed relative to each other. The press working apparatus 1 performs punching work on a steel plate 100 positioned on the upper surface of a die 20 by a punch 10. In the present embodiment, the press working apparatus 1 performs punching work while positioning the steel plate in a belt shape in the longitudinal direction of the steel plate, but may perform punching work for each steel plate piece.
The press working apparatus 1 has a fixed platen 2 and a movable platen 3. The movable platen 3 is positioned above the fixed platen 2 at a predetermined interval in the vertical direction. The movable platen 3 is movable in the vertical direction and can be separated/released from the fixed platen 2.
And a die plate 4 is fixed on the upper surface of the fixed disc 2. The die plate 4 holds the die 20.
A punch plate 5 is fixed to the lower surface of the movable plate 3. The punch plate 5 fixes the punch 10. Further, a stripper plate 7 is attached to the lower side of the punch plate 5 via shoulder bolts 6. The stripper plate 7 can be separated/released with respect to the punch plate 5. During the press working, the movable platen 3 moves downward, and the stripper plate 7 comes into contact with the upper surface of the die plate 4.
The movable platen 3 has guide pins 8, which guide pins 8 extend downwards and through the stripper plate. The die plate 4 has a guide bush 9, and the guide pin 8 is inserted into the guide bush 9. The guide pin 8 and the guide bush 9 guide the up-and-down movement of the movable disk 2.
The punch 10 has a punch tip 10 a. The die 20 has a die tip 20 a. A punch cutting edge 10a for punching the steel plate 100 with the punch cutting edge 10a and the die cutting edge 20a is located at the lower end of the punch 10. The die tip 20a is located on the upper surface of the die 20. The punch cutting edge 10a and the die cutting edge 20a have shapes suitable for punching such as drilling and outline punching when viewed in the vertical direction.
Fig. 1 shows the structure of a punch 10 and a die 20 for performing outline blanking. In the outer shape punching process, a product portion 110 having an outer shape corresponding to the shapes of the punch cutting edge 10a of the punch 10 and the die cutting edge 20a of the die 20 is formed. In addition, in the outer punching process, as shown in fig. 3, when the product portion 110 is punched out of the steel plate 100, a scrap portion 120 including the outer peripheral portion 101 of the steel plate 100 is generated outside the product portion 100.
In the present embodiment, the product portion 110 is a motor core member. Hereinafter, the same reference numeral 110 as that of the product portion will be given to the motor core member.
The motor core member 110 is a member for constituting a stator core of a motor, not shown. That is, the stator core includes a plurality of motor core members 110 stacked in the thickness direction. The structure of the stator core of the motor is the same as that of the conventional stator core, and thus, detailed description thereof is omitted.
As shown in fig. 2, the motor core member 110 has a ring shape with a central hole 110a at the center. The motor core member 110 includes an annular yoke 41 and a plurality of teeth 42 extending from the radially inner side of the yoke 41 toward the radially inner side. The yoke 41 has a plurality of through holes 43. The through-holes 43 are used for positioning the motor core members 110 in a lamination process of the motor core members 110 during manufacturing of the stator core.
Fig. 3 is a diagram schematically showing how the motor core member 110 is formed from the steel plate 100 by a punching process. When forming the motor core member 110 from the steel plate 100, the steel plate 100 is subjected to, for example, a hole-punching process, an outer shape-punching process, and a cutting process. Fig. 3 shows how steel sheet 100 having been subjected to the hole-forming process is processed in the outer shape punching process. However, the hole-forming process may be performed after the outer shape blanking process.
As shown in fig. 3, in the hole forming step, the steel plate 100 is punched to form a central hole 110a, a groove of the tooth 42, and a plurality of through holes 43 in the yoke portion 41. The hole-forming process may be performed by a plurality of steps.
The outer shape punching step forms the outer shape of the motor core member 110. In the present embodiment, the motor core member 110 obtained by the outer shape punching step has a substantially regular 12-cornered shape.
In the outer punching step, the steel plate 100 in a strip shape is punched out to form the motor core member 110. That is, the steel plate 100 is separated into the motor core member 110 and the slug portion 120 located around the motor core member 110 and including the outer peripheral portion 101 of the steel plate 100 by the outer shape punching step.
As shown in fig. 3, in the present embodiment, the outer shape punching step forms a plurality of notches 112 in the outer peripheral edge 111 of the motor core member 110. In the present embodiment, in the outer punching step, the notch 112 is formed at one position on one side of the outer peripheral edge 111 of the motor core member 110. However, the number of the notches 112 formed in one side of the outer peripheral edge 111 of the core member 110 for a motor is not limited to one, and may be plural.
In the outer shape punching step, the press working apparatus 1 punches the motor core member 110 from the steel plate 100 by the punch 10 and the die 20. Therefore, the slits 112 are formed in the entire thickness direction of the motor core member 110.
As described above, the discard 120 is formed on the outer peripheral side of the steel plate 100 when the motor core member 110 is punched out of the steel plate 100. Therefore, the slug portion 120 has a peripheral edge portion 121 having a shape along the outer periphery of the motor core member 110. As shown in fig. 4, the peripheral edge 121 of the slug portion 120 has a plurality of projecting portions 122 projecting toward the motor core member 110. The plurality of projections 122 are formed on the peripheral edge portion 12 of the discard portion 12 when the plurality of notches 112 of the motor core member 110 are punched out of the steel plate 100.
As shown in fig. 4, the projecting portion 122 formed in the scrap portion 120 is arc-shaped having a diameter a equal to or larger than the thickness dimension B of the steel sheet 100 shown in fig. 8A. However, the shape and size of the projecting portion 122 are not limited thereto.
As described above, by forming the projecting portion 122 in the peripheral edge portion 12 of the discard portion 120, the discard of the discard portion 120 in the outer shape punching step can be prevented from rising. The mechanism of preventing the lifting of the discard by the projection 122 of the discard unit 120 will be described in detail later.
As shown in fig. 3, the plurality of motor core members 110 punched out of the steel plate 100 by the outer shape punching process are connected in the longitudinal direction of the steel plate 100. Therefore, the plurality of motor core members 110 connected in the longitudinal direction of the steel plate 100 are cut for each motor core member 110 through the cutting process. The cutting step is the same as the cutting step in the conventional press working, and therefore, a detailed description thereof is omitted.
Fig. 5 is a partially enlarged perspective view schematically showing the structure of the die 20. Fig. 6 is a partially enlarged plan view schematically showing the structure of the punch cutting edge 10a of the punch 10 and the die cutting edge 20a of the die 20.
The outer shape of the motor core member 110 is the shape of the cutting edges 10a, 20a of the punch 10 and the die 20 to be subjected to the punching process. That is, the punch cutting edge 10a of the punch 10 and the die cutting edge 20a of the die 20 have shapes capable of forming the notch 112 located at the outer peripheral edge portion 111 of the motor core member 110 and the projecting portion 122 located at the outer peripheral edge 121 of the discard portion 120.
Specifically, as shown in fig. 5 and 6, the die 20 has a recess 21 in a part of the die cutting edge 20 a. The punch 10 has a protruding portion 11 forming the protruding portion 122 of the scrap portion 120 together with the recessed portion 21 of the die 20 at a part of the punch cutting edge 10 a.
The recess 21 of the die 20 is in the form of a groove extending in the vertical direction on the side surface 23.
In the case where the plurality of projecting portions 122 are formed on the discard 120, the die 20 has a plurality of concave portions 21, and the punch 10 has a plurality of projecting portions 11 which form the plurality of projecting portions 122 on the discard 120 together with the plurality of concave portions 21 of the die 20.
The punch cutting edge 10a of the punch 10 and the die cutting edge 20a of the die 20 are located on both sides in the thickness direction of the steel sheet 100 during punching. The punch 10 approaches the die 20, and the steel plate 100 is punched by the punch cutting edge 10a and the die cutting edge 20 a. At this time, the convex portion 11 of the punch 10 enters the concave portion 21 of the die 20 from above.
Fig. 7 is a process flowchart of the punching process performed by the press working apparatus 1 according to the present embodiment. Fig. 8A to 8C are views schematically showing a process of blanking by the press working apparatus 1.
First, as shown in fig. 8A, a strip-shaped steel plate 100 is positioned at a predetermined position on the upper surface of a die 20 between a punch 10 and the die 20 of a press working apparatus 1 (step S1). The positioning of the steel plate 100 with respect to the die 20 is the same as the positioning of the steel plate in the conventional press working apparatus, and therefore, a detailed description thereof is omitted.
Next, the punch 10 is lowered to perform the punching process (step S2). Thereby, the motor core member 110 is punched out of the steel plate 100 by the punch cutting edge 10a and the die cutting edge 20a (step S3). This step is a blanking step.
As described above, when the steel plate 100 is punched, the punch cutting edge 10a and the die cutting edge 20a cut the slug portion 120 when the core member 110 for the motor is punched from the steel plate 100. At this time, the protruding portion 11 of the punch 10 and the recessed portion 21 of the die 20 form a protrusion 122 on the outer peripheral edge 121 of the discard portion 120.
In addition, in the punching process of steel plate 100, punch 10 presses down scrap part 120 cut off from steel plate 100. Therefore, as shown in fig. 8B, the convex portion 11 of the punch 10 fits the projecting portion 122 of the scrap portion 120 into the concave portion 21 of the die 20 (step S4). This step is a scrap embedding step.
The scrap portion 120, in which the projection 122 is fitted into the recess 21 of the die 20, includes the outer peripheral portion 101 of the steel plate 100. Therefore, the scrap part 120 is inclined downward by its own weight in a state where the projecting part 122 is fitted into the recess 21. That is, the discard unit 120 is inclined downward with respect to the die 20 with the projecting portion 122 as a fulcrum. As described above, when the scrap part 120 is inclined downward, the frictional force between the inner surface 22 of the recess 21 and the projection 122 increases due to the thickness of the scrap part 120. Therefore, the projecting portion 122 is held on the inner surface 22 by friction with the inner surface 22 of the concave portion 21 of the die 20.
Therefore, as shown in fig. 8C, when the punch 10 is separated from the die 20 after the punching process of the product portion 110 (step S5), the slug portion 120 can be prevented from being lifted together with the punch 10. That is, the scrap in the scrap part 120 can be prevented from rising.
In the punching process of the steel plate when the motor core member is formed next, the discard portion held in the die 20 in the previous step is pushed by the discard portion 120 in the next step and moved downward. That is, since the discard unit 120 is held by the die 20 every time the punching process is performed, a plurality of the discard units 120 are held by the die 20. When the number of the discard portions 120 locked to the die 20 reaches a certain number, the discard portion 120 located on the lower side falls off from the die 20. In order to remove the slug portion 120 remaining on the die 20, for example, the dimension between the inner surfaces 22 of the concave portion 21 of the die 20 may be increased downward.
The position and number of the projecting portions 122 may be determined in consideration of the inclination of the scrap portion 120 as described above. For example, when the scrap part 120 is viewed in plan, the projecting part 122 is positioned at the end of the outer peripheral edge part 121 of the scrap part 120, whereby the weight of the regions positioned on both sides of the scrap part 120 around the projecting part 122 can be unbalanced. Thereby, the inclination angle and the orientation of the scrap part 120 with respect to the die 20 can be adjusted. Therefore, the force with which the die 20 holds the discard unit 120, the number of the discard units 120 that the die 20 can hold, and the like can be adjusted.
Further, a plurality of projecting portions 122 may be formed in the peripheral edge portion 121 of the scrap portion 120. This enables the slug portion 120 to be more reliably fitted into the die 20, and therefore, the slug of the slug portion 120 can be more reliably prevented from rising.
As described above, according to the method for preventing the lifting of the discard unit 120 of the present embodiment, since the peripheral edge portion 121 of the discard unit 120 on the product unit 110 side has the projecting portion 122 projecting toward the product unit side, the projecting portion 122 of the discard unit 120 can be fitted into the recess 21 of the die 20 by the punch 10 when the product unit 122 is punched out. The scrap portion 120 generated around the product portion 110 is inclined with respect to the die 20 because it includes the outer peripheral portion 101 of the steel plate 100. Therefore, the projecting portion 122 of the scrap portion 12 is held by friction with the inner surface 22 of the recess 21 of the die 20. Therefore, when the punch 10 is separated from the die 20 after the punching process of the product portion 110, the slug portion 120 can be prevented from being lifted together with the punch 10. That is, the scrap in the scrap part 120 can be prevented from rising.
In addition, generally, when the scrap in the scrap portion 120 rises, a scrap portion removing mechanism is provided on the punch side to remove the scrap. In contrast, the above-described configuration prevents the scrap in the scrap portion from rising, and thus the scrap removing mechanism is not required, and the number of parts of the punching device can be reduced.
The present invention is not limited to the above embodiments, and can be implemented in various other embodiments.
In the above embodiment, the motor core member 110 is described as a product portion. However, the product portion is not limited to the motor core component, and can be widely applied to a component having a shape in which a scrap portion including an outer peripheral portion of a steel plate is generated in press working.
In the above embodiment, the scrap part 120 is inclined downward with the projecting part 122 as a fulcrum, but the inclination direction and inclination angle of the scrap part 120 are not limited to this. The direction of inclination of the slug portion may be any direction and the angle of inclination of the slug portion may be any angle if the projection of the slug portion is retained within the recess of the die.
As described above, the scrap rising prevention of the scrap portion 120 is achieved by the frictional force between the projection 122 and the inner surface 22 of the recess 21 of the die 20. Therefore, the frictional force can be adjusted by the shape of the projecting portion 122. For example, in the present embodiment, the projecting portion is formed in an arc shape having a diameter a larger than the thickness dimension B of the steel sheet 100, but the present invention is not limited thereto. For example, the shape of the projecting portion may be a quadrangle when viewed from above.
Further, in the above embodiment, only one projection 122 is formed in the central portion of the outer peripheral edge. However, the positions and the number of the projecting portions 122 can be changed according to the inclination direction, the inclination angle, and the like of the scrap portion 120. For example, as shown in fig. 9, the projecting portion 122 is positioned on the end side of the outer peripheral edge 121 of the discard portion 120, whereby the discard portion 120 can be inclined in the direction along the side surface 23 of the die 20.
Industrial applicability
The present invention can be applied to scrap rising prevention in a scrap part in a steel plate punching process using a die and a punch.
Description of the reference symbols
1: a press working device; 2: fixing the disc; 3: a movable disk; 4: punching a template; 5: a head plate; 6: a shoulder bolt; 7: a stripper plate; 8: a guide pin; 9: a guide bushing; 10: a punch; 10 a: the tip of the punch; 11: a convex portion; 20: punching a die; 20 a: a tool nose of the die; 21: a recess; 22: an inner surface; 23: a side surface; 41: a yoke portion; 42: teeth; 43: a reverse rotation holding part; 100: a strip-shaped steel plate; 101: a peripheral portion; 110: a motor core member (product portion); 110 a: a central aperture; 111: an outer peripheral edge; 112: cutting; 120: a waste section; 121: a peripheral edge portion; 122: a projecting part.
Claims (4)
1. A scrap rising prevention method for a scrap portion, which prevents a scrap rising of the scrap portion including an outer peripheral portion of a steel plate partially generated around a product portion when the product portion is punched out of the steel plate using a die and a punch,
the die has a recessed portion that forms a projecting portion projecting toward the product portion side when viewed in a punching direction in a peripheral edge portion on the product portion side of the discard portion,
the punch has a convex portion that forms the projecting portion in the scrap portion together with the concave portion of the die,
the method for preventing scrap rising in a scrap part comprises the following steps:
a punching step of forming the projecting portion in a peripheral edge portion of the scrap portion on the product portion side by the projecting portion of the punch and the recessed portion of the die; and
a scrap-portion fitting step of fitting the projecting portion of the scrap portion into the recess of the die by the projecting portion of the punch.
2. The scrap rising prevention method of a scrap section according to claim 1,
the die has a plurality of the concave portions in which the projecting portions are formed in the peripheral edge portion of the scrap portion on the product portion side,
the punch has a plurality of the convex portions that form the projecting portions in the scrap portion together with the concave portions of the die,
in the punching step, the plurality of projecting portions are formed in a peripheral edge portion of the scrap portion on the product portion side.
3. The scrap rising prevention method of the scrap section according to claim 1 or 2,
the projecting portion is arc-shaped having a diameter equal to or larger than the thickness dimension of the steel plate.
4. The scrap rising prevention method of the scrap section according to claim 1 or 2,
the product portion is a disk-shaped core member for a motor having a plurality of teeth arranged in a circumferential direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-064308 | 2018-03-29 | ||
| JP2018064308 | 2018-03-29 | ||
| PCT/JP2019/013081 WO2019189299A1 (en) | 2018-03-29 | 2019-03-27 | Method for preventing scrap rising of scraps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111936247A CN111936247A (en) | 2020-11-13 |
| CN111936247B true CN111936247B (en) | 2022-07-15 |
Family
ID=68060188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980022962.8A Active CN111936247B (en) | 2018-03-29 | 2019-03-27 | Method for preventing waste rising in waste part |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111936247B (en) |
| WO (1) | WO2019189299A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4543865A (en) * | 1982-06-15 | 1985-10-01 | Kramski Gmbh Prazisionswerkzeuge-Metallwaren | Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks |
| JPS62101633U (en) * | 1985-12-18 | 1987-06-29 | ||
| JP2002345215A (en) * | 2001-05-18 | 2002-11-29 | Kuroda Precision Ind Ltd | Apparatus for manufacturing laminated core |
| CN102714449A (en) * | 2010-03-26 | 2012-10-03 | 爱信艾达株式会社 | Laminated core punching device |
| FR3016133A1 (en) * | 2014-01-09 | 2015-07-10 | Air Liquide | METHOD AND DEVICE FOR MANUFACTURING A PERFORATED TRIM WAVE |
| JP2015166102A (en) * | 2014-03-04 | 2015-09-24 | 英一 神田 | Die for suppressing or preventing ride of foreign matter |
| CN206356433U (en) * | 2016-12-20 | 2017-07-28 | 天津津荣天宇精密机械股份有限公司 | It is a kind of to prevent the punch structure of returning charge |
| CN207057393U (en) * | 2017-07-24 | 2018-03-02 | 菲斯达排放控制装置（苏州）有限公司 | Prevent the mould of scraps-bounce |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014000299B3 (en) * | 2014-01-15 | 2015-07-16 | Rixen Wolfgang | Method for producing passages in a metallic body by means of high-speed shear cutting and its use |
-
2019
- 2019-03-27 CN CN201980022962.8A patent/CN111936247B/en active Active
- 2019-03-27 WO PCT/JP2019/013081 patent/WO2019189299A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4543865A (en) * | 1982-06-15 | 1985-10-01 | Kramski Gmbh Prazisionswerkzeuge-Metallwaren | Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks |
| JPS62101633U (en) * | 1985-12-18 | 1987-06-29 | ||
| JP2002345215A (en) * | 2001-05-18 | 2002-11-29 | Kuroda Precision Ind Ltd | Apparatus for manufacturing laminated core |
| CN102714449A (en) * | 2010-03-26 | 2012-10-03 | 爱信艾达株式会社 | Laminated core punching device |
| FR3016133A1 (en) * | 2014-01-09 | 2015-07-10 | Air Liquide | METHOD AND DEVICE FOR MANUFACTURING A PERFORATED TRIM WAVE |
| JP2015166102A (en) * | 2014-03-04 | 2015-09-24 | 英一 神田 | Die for suppressing or preventing ride of foreign matter |
| CN206356433U (en) * | 2016-12-20 | 2017-07-28 | 天津津荣天宇精密机械股份有限公司 | It is a kind of to prevent the punch structure of returning charge |
| CN207057393U (en) * | 2017-07-24 | 2018-03-02 | 菲斯达排放控制装置（苏州）有限公司 | Prevent the mould of scraps-bounce |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111936247A (en) | 2020-11-13 |
| WO2019189299A1 (en) | 2019-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105081057B (en) | Method and apparatus for manufacturing laminated iron core | |
| JP3676192B2 (en) | Punching method for continuously variable transmission belt elements | |
| EP3213831B1 (en) | Progressive processing method | |
| JP2008119704A (en) | Press working apparatus | |
| CN111936247B (en) | Method for preventing waste rising in waste part | |
| JP2007075888A (en) | Press punching method, press punching die, and spring | |
| JP4989877B2 (en) | Manufacturing method of rotor laminated core | |
| KR101667645B1 (en) | method for chamfering metal components | |
| JP6652460B2 (en) | Laminated core manufacturing apparatus and laminated core manufacturing method | |
| JP2016153131A (en) | Mold device and metal product manufacturing method using same | |
| CN110976610B (en) | Punching equipment and punching method for workpiece with comb tooth structure | |
| CN111758208B (en) | Rotor core component manufacturing method and rotor core component | |
| WO2023002715A1 (en) | Progressive press device and progressive press method | |
| JP4292037B2 (en) | External punching method of motor core and mold apparatus for manufacturing the same | |
| KR102050264B1 (en) | Molding device | |
| CN109792195B (en) | Method for manufacturing iron core sheet | |
| JP2006346687A (en) | Progressive die apparatus of press, and motor core or ignition core | |
| WO2019202930A1 (en) | Device for manufacturing pressed product | |
| JP2007326105A (en) | Press forming die and press forming method | |
| WO2023145331A1 (en) | Pressing device, pressing method, and machining tool for pressing | |
| CN111819775A (en) | Method for manufacturing rotor core component | |
| JP2004034143A (en) | Method and apparatus for manufacturing motor core | |
| JP3172404U (en) | Button die to prevent waste | |
| JP2005297009A (en) | Ring-shaped part manufacturing method by progressive press, and ring-shaped part | |
| JP3167681U (en) | Press mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |