US1933465A - Work stripper - Google Patents
Work stripper Download PDFInfo
- Publication number
- US1933465A US1933465A US64267032A US1933465A US 1933465 A US1933465 A US 1933465A US 64267032 A US64267032 A US 64267032A US 1933465 A US1933465 A US 1933465A
- Authority
- US
- United States
- Prior art keywords
- stripper
- work
- mount
- lever
- swing
- 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.)
- Expired - Lifetime
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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
- B21D45/006—Stripping-off devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
- Y10T83/2096—Means to move product out of contact with tool
- Y10T83/2135—Moving stripper timed with tool stroke
- Y10T83/214—Latched stripper released by tool return
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
- Y10T83/2096—Means to move product out of contact with tool
- Y10T83/2135—Moving stripper timed with tool stroke
- Y10T83/2148—Linkage actuated
Definitions
- This invention relates to work strippers for reciprocative tools, one of the objects being the provision of a simple mechanism which will operate automatically. Other objects may be inferred from the following example of one specinc form of the invention as applied to a punching machine.
- Figure 1 is a side elevation and Figure 2 is a front elevation.
- the punching machine illustrated includes a vertically reciprocative mount or ram 1 operating in a housing 2 and carrying a'punch 3 for movement into work on an anvil 4.
- the present invention is intended to prevent the punch 3 carrying the work upwardly with it on its returning reciprocation. It comprises a work stripper 5 pivotally mounted by a vertically adjustable hinged section 6 for swinging movement onto the work on the anvil 4. A spring 7 interconnects the stripper 5 and mount 1 for substantially mutual movement of the two. 'I'his connection is effected through an arm 8 fixed to the reciprocative tool mount l and a hook 9 fixed to the stripper 5 adjacent its pivoting point.
- a lever 10 is pivoted to the housing 2 'so its lower end may swing over the free end of the stripper 5 when the latter is at substantially the lower limits of its swing.
- the lever 10 includes a cam surface 11 which cooperates with aprojecting pin 12 fixed to the reciprocative tool mount 1.
- the lever also includes a longitudinally adjustable end 13 so that engagement with the stripper 5 may be eifected at the proper time.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
Oct. 31, 1933. WOODBURN 1,933,465
WORK STRIPPER I Filed Nov. 14, 1932 Patented Oct. 31, 1933 UNITED STATES WORK STRIPPER Harold G. Woodburn, Munhall, Pa.
Application `November 14, 1932 Serial N0. 642,670
2 Claims.
This invention relates to work strippers for reciprocative tools, one of the objects being the provision of a simple mechanism which will operate automatically. Other objects may be inferred from the following example of one specinc form of the invention as applied to a punching machine. l
In the accompanying drawing, Figure 1 is a side elevation and Figure 2 is a front elevation.
The punching machine illustrated includes a vertically reciprocative mount or ram 1 operating in a housing 2 and carrying a'punch 3 for movement into work on an anvil 4.
The present invention is intended to prevent the punch 3 carrying the work upwardly with it on its returning reciprocation. It comprises a work stripper 5 pivotally mounted by a vertically adjustable hinged section 6 for swinging movement onto the work on the anvil 4. A spring 7 interconnects the stripper 5 and mount 1 for substantially mutual movement of the two. 'I'his connection is effected through an arm 8 fixed to the reciprocative tool mount l and a hook 9 fixed to the stripper 5 adjacent its pivoting point.
A lever 10 is pivoted to the housing 2 'so its lower end may swing over the free end of the stripper 5 when the latter is at substantially the lower limits of its swing. The lever 10 includes a cam surface 11 which cooperates with aprojecting pin 12 fixed to the reciprocative tool mount 1. Preferably, the lever also includes a longitudinally adjustable end 13 so that engagement with the stripper 5 may be eifected at the proper time.
The operation is substantially as follows:
When the reciprocative ytool mount 1 pushes the punch 3 into-work on the anvil 4 the stripper 5 will be brought to bear on the work through the lowering action of the spring 7. The lever 10 will then gravitationally swing to a vertical position so that its end 13 engages the free end of the stripper 5. When the mount 1 begins its returning reciprocation the lever 10 will hold the stripper on the work so the latter is held against being raised by the punch. As soon as the punch 3 is clear from the work the projecting pin 12 cooperates with the cam surface 11 to swing the lever 10 from its vertical position and the stripper is then released. The spring 7 has become tensioned during this movement so that the stripper is raised from the Work in a speedy manner.
Although a specific form of this invention has been disclosed in accordance with the patent statutes, it is not intended that the. inventive 'scope belimited exactly'thereto, except as dened by the following claims.
1. The combination of a `reciprocative tool mount, a tool carried by said mount, a stripper pivoted to swing onto said tools Work; means-for interconnecting said mount and said stripper, a depending lever arranged to gravitationally swing into engagement with said stripper'v when the g latter is on the said tools work and means for swinging said lever after said mount begins its returning reciprocations.
2. The combination of a vertically reciprocative tool mount, a tool carried bysaid mount, a stripper pivoted to swing onto said tools work as said .mount reciprocates and having a free end,'a
spring interconnectingsaid mount and stripper for substantiallymutual movement, a lever pivoted so one end swings over the free end of said stripper whenit is at substantially the lower limits of its swing and constructed with a cam surface, and a projecting element fixed to said mount and arranged to contact the cam surface of said lever.
HAROLD G. WOODBURN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64267032 US1933465A (en) | 1932-11-14 | 1932-11-14 | Work stripper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64267032 US1933465A (en) | 1932-11-14 | 1932-11-14 | Work stripper |
Publications (1)
Publication Number | Publication Date |
---|---|
US1933465A true US1933465A (en) | 1933-10-31 |
Family
ID=24577536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US64267032 Expired - Lifetime US1933465A (en) | 1932-11-14 | 1932-11-14 | Work stripper |
Country Status (1)
Country | Link |
---|---|
US (1) | US1933465A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2454432A (en) * | 1946-11-22 | 1948-11-23 | Theron T Crandall | Punch press stripper |
US3119293A (en) * | 1961-10-18 | 1964-01-28 | Western Electric Co | Punch and die for presses |
US20070131072A1 (en) * | 2005-12-08 | 2007-06-14 | Wincor Nixdorf International Gmbh | Sales slip printer with a tray arrangement for continuous paper segments |
-
1932
- 1932-11-14 US US64267032 patent/US1933465A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2454432A (en) * | 1946-11-22 | 1948-11-23 | Theron T Crandall | Punch press stripper |
US3119293A (en) * | 1961-10-18 | 1964-01-28 | Western Electric Co | Punch and die for presses |
US20070131072A1 (en) * | 2005-12-08 | 2007-06-14 | Wincor Nixdorf International Gmbh | Sales slip printer with a tray arrangement for continuous paper segments |
US7565855B2 (en) * | 2005-12-08 | 2009-07-28 | Wincor Nixdorf International Gmbh | Sales slip printer with a tray arrangement for continuous paper segments |
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