US1743212A - Tool or implement for feeding punch presses and the like - Google Patents

Tool or implement for feeding punch presses and the like Download PDF

Info

Publication number
US1743212A
US1743212A US300402A US30040228A US1743212A US 1743212 A US1743212 A US 1743212A US 300402 A US300402 A US 300402A US 30040228 A US30040228 A US 30040228A US 1743212 A US1743212 A US 1743212A
Authority
US
United States
Prior art keywords
passage
suction
implement
suction cup
head member
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
Application number
US300402A
Inventor
Carl H Harris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US300402A priority Critical patent/US1743212A/en
Application granted granted Critical
Publication of US1743212A publication Critical patent/US1743212A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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

Definitions

  • the main objects of this invention are: First, to provide an implement or tool for feeding punch presses and the like which is efficient in that it has a secure grip upon the work, is compact permitting the insertion of work in punch presses and the like having short strokes or which have a relatively narrow opening when the head is retracted.
  • Fig. 1 is a perspective view illustrating my improved implement grasping a sheet of metal.
  • Fig. 2 is a detail view partially in central longitudinal section.
  • my improved implement comprises a head member 1 having a pistol-grip handpiece 2.
  • This head member and the handpiece thereof have an inlet passage 3 for air under pressure, this passage being disposed longitudinally of the handpiece which is provided with a coupling 1 by means of which an air hose may be attached.
  • the head member also has a vertical air discharge passage 5, the passages 3 and 5 being connected through the valve chamber 6.
  • This valve chamber is in the form of a bore disposed transversely of the passages and has a plug-like member 7 threaded therein and provided with a valve seat 8 for the ball valve 9.
  • This valve is arranged to seat towardthe passage 5, that is, so that the pres- .50 sure of air acts to hold the valve on its seat.
  • a coiled spring 10 also acts to seat the valve, insuring its initial seating.
  • the member 7 has a passage 11 therein communicating through the passage 12 in the annular groove 121 with the passage 5. This groove is provided so that it is not necessary to register the port or passage 12 with the passage 5.
  • the member 7 carries a valve actuating plunger 13 which projects to be engaged by the trigger-like lever 14: which is pivoted to the head member 15, the lever being thus positioned so that it may be conveniently grasped by the operator grasping the handpiece 2.
  • the exhaust nozzle 16 is preferably angled,
  • the suction cup 17 is preferably of flexible leather and is provided with a feather edge 18. This cup is mounted on the upper arm 19 which opens into the cup as shown and is connected through the coupling member 20 to the suction passage 21in the head member opening to the passage 6.
  • the arm 19 is preferably a piece of copper tubing flanged at 22 and clamped to the coupling member 20 by means of the clamping sleeve 23.
  • This provides a secure joint and permits changing the arms as may be desired, that is, arms of diiferent lengths or shapes may be substituted,
  • thearm 19 may be bent if desired, a further advantage in formingit of copper or other bendable material being that in the event it should be engaged by the dies, it is not likely to seriously injure the dies.
  • it may be easily adjusted to the particular work, that is, should the work have an inclined surface for instance that it is desired to engage, the arm can be bent or adjusted to properly present the suction cup thereto.
  • the work 24: illustrated is a flat piece of sheet metal.
  • the implement In use, the implement is connected to a source of air under pressure and when it is desired to pick up a piece of work, the suction cup is pressed down upon the same, opening the valve permitting a blast of air to pass through the discharge passage 6 and this, owing to the connection With the suction cup, produces a suction "or a partial vacuum in the suction cup. It will be understood that the suction continues as long as the valve is open. However, as soon as the valve is released, the suction is broken and the Work released.
  • the blast of air may be e'fiectively used to dislodge certain types of work from a machine such as apunch press. It Will be understood that the exact timing or o aening of the valve With the.
  • An implement of the class described comprising a head member having a pistolgrip handpiece, an inlet passage disposed longitudinally of said handpiece, a vertical dis charge passage and a suction passage opening to said discharge passage, a ball control valve tor said dischar e passage arranged so that the pressure acts to seat the same, a spring acting toseat said valve, auvalve actuating plunger, a trigger-like valve actuating lever pivoted on said head member to coact With said plunger, a suction cup,'and a. tubular supporting arm for said suction cup adjustably mounted on said head member and connecting said suction cup with said suction passage.
  • An implement of the class described comprising a head member having a pistolgrip handpiece, an inlet passage disposed longitudinally of said handpiece, a vertical dis charge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a spring acting to seat said valve, a valve actuating plunger, a trigger-like lever pivoted on said head member, a suction cup, and a tubular supporting arm for said suction cup connecting said suction cup- With said suction passage.
  • An implement of the class described comprising a head member having a pistolgrip handpiece, an inlet passage disposed longitudinally of said handpiece, a Vertical discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a spring acting to seat said valve, a valve actuating plunger, a trigger-like valve actuating lever pivoted on said head member, a suction cup, a tubular angled supporting arm for said suction cup adjustably mounted on said head member and connecting said suction cup With said suction passage, and an angled exhaust nozzle for said discharge passage rotatably mounted on said head member.
  • An implement of the class described comprising a head member having a pistolgrip hand piece, an inlet passage disposed longitudinally of said handpiece, a vertical discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a trigger-like valve actuating lever pivoted on said head member, a suction cup, a supporting arm for said suction cup having a passage therein connecting said suction cup With said suction passage, and an exhaust nozzle for said discharge passage adjustably mounted on said head member.
  • An implement of the class described comprising a head member having a pistol-V,
  • an inlet passage disposed longitudinally of said handpiece, a vertical discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a trigger-like valve actuating lever pivoted on said head member, a suction cup, and a supporting arm for said suction cup having a passage therein connecting said suction cup With said suction passage.
  • An implement of the class described comprising a headmember provided With a handpiece and having an inlet passage, a discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a suction cup, a tubular angled supporting arm for said suction cup adj ustably mounted on said head member and connecting said suction cup With said suction passage, and an angled exhaust nozzle for said suction passage rotatably mounted on said head member.
  • An implement of the class described comprising a head member providedvvith a handpiece and having aninlet passage, a discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a suction cup, a tubular supporting arm for said suction cup connecting said suction cup With said suction passage, and an angled exhaust nozzle for said suction passage.
  • An implement oi the class described comprising a head member provided with a handpiece and having an inlet passage, a
  • discharge passage open to the atmosphere and a suction passage opening to said discharge passage, a control valve for said inlet passage disposed in advance of said suction passage connection to said discharge passage, a suction cup, and a tubular angled supporting arm for said suction cup adjustably mounted on said head member and connecting said suction cup with said suction passage.
  • An implement of the class described comprising a head member provided with a handpiece and having an inlet passage for air under pressure, a discharge passage and a suction passage opening to said discharge passage whereby a suction is produced in said suction passage by the discharge'of air under pressure through said discharge passage, a control valve for said discharge passage, a flexible suction cup, and a supporting arm for said suction cup having a passage therein connecting said suction cup with said suction passage.
  • An implement of the class described comprising a head member provided with a pistol-grip handpiece and having a passage therein for air under pressure exhausting to the atmosphere, a control valve for said passage, a trigger-like actuating lever for said valve, a suction cup, and a supporting arm for said cup having a passage opening within the cup and communicating with said air passage, said air passage having an exhaust nozzle adjustable to control the direction of the exhaust air.
  • An implement of the class described comprising a head member provided with a pistol-grip handpiece and having a passage therein for air under pressure exhausting to the atmosphere, a control valve for said passage, a trigger-like actuating lever for said valve, a suction cup, and a supporting arm a for said cup having a passage opening within the cup and communicating with said air passage.
  • An implement of the class described comprising a head member provided with a handpiece and having a valve controlled passage for air under pressure exhausting to the atmosphere, a flexible suction cup provided with a feather edge, and a tubular bendable supporting arm for said cup opening thereto and connected to said head member so that the discharge of air under pressure through said air passage in said head will partially exhaust said suction cup.
  • An implement of the class described comprising a head member provided with a handpiece and having a valve controlled passage for air under pressure exhausting to the atmosphere, a flexible suction cup provided with a feather edge, and a tubular supporting arm for said cup opening thereto and connected to said head member sothat the discharge of air under pressure through said air passage in said head member will partially exhaust said suction cup.
  • An implement of the class described comprising a head member provided with a handpiece and having a' valve controlled passage for air under pressure exhausting to the atmosphere, at flexible suction cup, and a tubular bendable supporting arm for said cup opening thereto and connected to said head member so that the discharge of air under pressure through said air passage in said head member will partially exhaust said suction cup.
  • An implement of the class described comprising a head member having a passage therein for air under pressure having a discharge open to the atmosphere, a control valve for said passage, and a suction cup mounted on said head member and connected with said air passage at the rear of said control valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)

Description

Jan. 14, 1930. H. HARRIS TOOL OR IMPLEMENT FOR FEEDING PUNCH PRESSES AND THE LIKE Filed Aug. 18, 1,928
V m s INVENTOR [GP/ H Ha 7"]"15 Patented Jan. 14-, 1930 *PATE TOOL OR IMPLEMENT FOR FEEDING PUNCH PRESSES AND THE LIKE Application filed August 18, 1928.
The main objects of this invention are: First, to provide an implement or tool for feeding punch presses and the like which is efficient in that it has a secure grip upon the work, is compact permitting the insertion of work in punch presses and the like having short strokes or which have a relatively narrow opening when the head is retracted.
Second, to provide an implement of the class described which may be readily adapted for work of difierent character and machines of different types.
Third, to provide an implement of the class described in which the work may not only be fed into the machine but may be discharged from the machine not only by means of the tool gripping the work but by a blast of air. Fourth, to provide an implement of the class described utilizing air under pressure.
Objects relating to details and economies of my invention will appear from the descrip tion to follow. The invention is defined and pointed out in the claims.
A structure which is a preferred embodiment of my invention is illustrated in the accompanying drawing, in which:
Fig. 1 is a perspective view illustrating my improved implement grasping a sheet of metal.
Fig. 2 is a detail view partially in central longitudinal section.
As embodied in the structure illustrated in the accompanying drawing, my improved implement comprises a head member 1 having a pistol-grip handpiece 2. This head member and the handpiece thereof have an inlet passage 3 for air under pressure, this passage being disposed longitudinally of the handpiece which is provided with a coupling 1 by means of which an air hose may be attached.
The head member also has a vertical air discharge passage 5, the passages 3 and 5 being connected through the valve chamber 6. This valve chamber is in the form of a bore disposed transversely of the passages and has a plug-like member 7 threaded therein and provided with a valve seat 8 for the ball valve 9. This valve is arranged to seat towardthe passage 5, that is, so that the pres- .50 sure of air acts to hold the valve on its seat.
Serial No. 300,402
A coiled spring 10 also acts to seat the valve, insuring its initial seating.
The member 7 has a passage 11 therein communicating through the passage 12 in the annular groove 121 with the passage 5. This groove is provided so that it is not necessary to register the port or passage 12 with the passage 5.
The member 7 carries a valve actuating plunger 13 which projects to be engaged by the trigger-like lever 14: which is pivoted to the head member 15, the lever being thus positioned so that it may be conveniently grasped by the operator grasping the handpiece 2.
The exhaust nozzle 16 is preferably angled,
as-shown, and swiveled sothat it may be I swung in any desired direction. It should, however, direct the air away from the operator, but can also be used to blow finished work off the machine.
The suction cup 17 is preferably of flexible leather and is provided with a feather edge 18. This cup is mounted on the upper arm 19 which opens into the cup as shown and is connected through the coupling member 20 to the suction passage 21in the head member opening to the passage 6.
The arm 19 is preferably a piece of copper tubing flanged at 22 and clamped to the coupling member 20 by means of the clamping sleeve 23. This provides a secure joint and permits changing the arms as may be desired, that is, arms of diiferent lengths or shapes may be substituted, Also, thearm 19 may be bent if desired, a further advantage in formingit of copper or other bendable material being that in the event it should be engaged by the dies, it is not likely to seriously injure the dies. Further, it may be easily adjusted to the particular work, that is, should the work have an inclined surface for instance that it is desired to engage, the arm can be bent or adjusted to properly present the suction cup thereto. The work 24: illustrated is a flat piece of sheet metal.
In use, the implement is connected to a source of air under pressure and when it is desired to pick up a piece of work, the suction cup is pressed down upon the same, opening the valve permitting a blast of air to pass through the discharge passage 6 and this, owing to the connection With the suction cup, produces a suction "or a partial vacuum in the suction cup. It will be understood that the suction continues as long as the valve is open. However, as soon as the valve is released, the suction is broken and the Work released.
By proper direction of the nozzle, the blast of air may be e'fiectively used to dislodge certain types of work from a machine such as apunch press. It Will be understood that the exact timing or o aening of the valve With the.
positioning of the suction cup on the Work is not of importance except that it the valve be opened before the suction cup is pressed against the Work there is a C8I'Litl1'l amount or" air Wasted.
By the aid of my improved implement or tool, Work may be rapidly fed and removed from machines With safety to the operator and also to the machine. Experience has shown that its use increases production as the operators are relieved from anxiety or tear of being injured. Production can be increased also because the suction leather cup grasps the Work more quickly than the hand in most cases, even on jobs not dangerous to the operators hands.
Having thus described my invention, What I claim as new and desire to secure by Letters Patent, is:
1. An implement of the class described comprising a head member having a pistolgrip handpiece, an inlet passage disposed longitudinally of said handpiece, a vertical dis charge passage and a suction passage opening to said discharge passage, a ball control valve tor said dischar e passage arranged so that the pressure acts to seat the same, a spring acting toseat said valve, auvalve actuating plunger, a trigger-like valve actuating lever pivoted on said head member to coact With said plunger, a suction cup,'and a. tubular supporting arm for said suction cup adjustably mounted on said head member and connecting said suction cup with said suction passage.
2. An implement of the class described comprising a head member having a pistolgrip handpiece, an inlet passage disposed longitudinally of said handpiece, a vertical dis charge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a spring acting to seat said valve, a valve actuating plunger, a trigger-like lever pivoted on said head member, a suction cup, and a tubular supporting arm for said suction cup connecting said suction cup- With said suction passage.
3. An implement of the class described comprising a head member having a pistolgrip handpiece, an inlet passage disposed longitudinally of said handpiece, a Vertical discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a spring acting to seat said valve, a valve actuating plunger, a trigger-like valve actuating lever pivoted on said head member, a suction cup, a tubular angled supporting arm for said suction cup adjustably mounted on said head member and connecting said suction cup With said suction passage, and an angled exhaust nozzle for said discharge passage rotatably mounted on said head member.
a. An implement of the class described comprising a head member having a pistolgrip hand piece, an inlet passage disposed longitudinally of said handpiece, a vertical discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a trigger-like valve actuating lever pivoted on said head member, a suction cup, a supporting arm for said suction cup having a passage therein connecting said suction cup With said suction passage, and an exhaust nozzle for said discharge passage adjustably mounted on said head member.
5. An implement of the class described comprising a head member having a pistol-V,
grip handpiece, an inlet passage disposed longitudinally of said handpiece, a vertical discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a trigger-like valve actuating lever pivoted on said head member, a suction cup, and a supporting arm for said suction cup having a passage therein connecting said suction cup With said suction passage.
6. An implement of the class described comprising a headmember provided With a handpiece and having an inlet passage, a discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a suction cup, a tubular angled supporting arm for said suction cup adj ustably mounted on said head member and connecting said suction cup With said suction passage, and an angled exhaust nozzle for said suction passage rotatably mounted on said head member. s
7. An implement of the class described comprising a head member providedvvith a handpiece and having aninlet passage, a discharge passage and a suction passage opening to said discharge passage, a control valve for said discharge passage, a suction cup, a tubular supporting arm for said suction cup connecting said suction cup With said suction passage, and an angled exhaust nozzle for said suction passage.
8. An implement oi": the class described comprising a head member provided with a handpiece and having an inlet passage, a
discharge passage open to the atmosphere and a suction passage opening to said discharge passage, a control valve for said inlet passage disposed in advance of said suction passage connection to said discharge passage, a suction cup, and a tubular angled supporting arm for said suction cup adjustably mounted on said head member and connecting said suction cup with said suction passage.
9. An implement of the class described comprising a head member provided with a handpiece and having an inlet passage for air under pressure, a discharge passage and a suction passage opening to said discharge passage whereby a suction is produced in said suction passage by the discharge'of air under pressure through said discharge passage, a control valve for said discharge passage, a flexible suction cup, and a supporting arm for said suction cup having a passage therein connecting said suction cup with said suction passage.
10. An implement of the class described comprising a head member provided with a pistol-grip handpiece and having a passage therein for air under pressure exhausting to the atmosphere, a control valve for said passage, a trigger-like actuating lever for said valve, a suction cup, and a supporting arm for said cup having a passage opening within the cup and communicating with said air passage, said air passage having an exhaust nozzle adjustable to control the direction of the exhaust air.
11. An implement of the class described comprising a head member provided with a pistol-grip handpiece and having a passage therein for air under pressure exhausting to the atmosphere, a control valve for said passage, a trigger-like actuating lever for said valve, a suction cup, and a supporting arm a for said cup having a passage opening within the cup and communicating with said air passage.
12. An implement of the class described comprising a head member provided with a handpiece and having a valve controlled passage for air under pressure exhausting to the atmosphere, a flexible suction cup provided with a feather edge, and a tubular bendable supporting arm for said cup opening thereto and connected to said head member so that the discharge of air under pressure through said air passage in said head will partially exhaust said suction cup.
13. An implement of the class described comprising a head member provided with a handpiece and having a valve controlled passage for air under pressure exhausting to the atmosphere, a flexible suction cup provided with a feather edge, and a tubular supporting arm for said cup opening thereto and connected to said head member sothat the discharge of air under pressure through said air passage in said head member will partially exhaust said suction cup.
14. An implement of the class described comprising a head member provided with a handpiece and having a' valve controlled passage for air under pressure exhausting to the atmosphere, at flexible suction cup, and a tubular bendable supporting arm for said cup opening thereto and connected to said head member so that the discharge of air under pressure through said air passage in said head member will partially exhaust said suction cup.
15. An implement of the class described comprising a head member having a passage therein for air under pressure having a discharge open to the atmosphere, a control valve for said passage, and a suction cup mounted on said head member and connected with said air passage at the rear of said control valve. I
In witness whereof I have hereunto set my hand.
CARL H. HARRIS.
US300402A 1928-08-18 1928-08-18 Tool or implement for feeding punch presses and the like Expired - Lifetime US1743212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US300402A US1743212A (en) 1928-08-18 1928-08-18 Tool or implement for feeding punch presses and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US300402A US1743212A (en) 1928-08-18 1928-08-18 Tool or implement for feeding punch presses and the like

Publications (1)

Publication Number Publication Date
US1743212A true US1743212A (en) 1930-01-14

Family

ID=23158949

Family Applications (1)

Application Number Title Priority Date Filing Date
US300402A Expired - Lifetime US1743212A (en) 1928-08-18 1928-08-18 Tool or implement for feeding punch presses and the like

Country Status (1)

Country Link
US (1) US1743212A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071402A (en) * 1959-09-28 1963-01-01 Air Vac Engineering Company In Vacuum-operated probe tools
US4767142A (en) * 1986-08-01 1988-08-30 Kiyoshi Takahashi Forceps for semiconductor silicon wafer
US5201913A (en) * 1992-03-19 1993-04-13 Vliet Kevin V Compact disc removal device
US5853208A (en) * 1996-06-04 1998-12-29 Tda Buddy, Inc. Manual manipulator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071402A (en) * 1959-09-28 1963-01-01 Air Vac Engineering Company In Vacuum-operated probe tools
US4767142A (en) * 1986-08-01 1988-08-30 Kiyoshi Takahashi Forceps for semiconductor silicon wafer
US5201913A (en) * 1992-03-19 1993-04-13 Vliet Kevin V Compact disc removal device
US5853208A (en) * 1996-06-04 1998-12-29 Tda Buddy, Inc. Manual manipulator

Similar Documents

Publication Publication Date Title
US2280658A (en) Vacuum pickup
US2364011A (en) Punching machine
US3451248A (en) Rivet setting tool
US2874989A (en) Control for hoists
GB2134027A (en) Pneumatic fastening tools
US5635019A (en) Strip applying hand tool with corner forming apparatus
NO168188B (en) CATHOD FOR PRODUCING THE HYDROGEN FROM ALKALIC SOLUTIONS AND PROCEDURES FOR PREPARING A CATHOD
US1743212A (en) Tool or implement for feeding punch presses and the like
GB2025295A (en) Apparatus for collectingbroken-off mandrels of blind rivets
US2354914A (en) Riveting tool and method of riveting
US3463042A (en) Pneumatic punch
US3393755A (en) Apparatus for engraving, carving, cutting or chipping metals, wood, stone or the like
US6467377B1 (en) Pneumatic stripping machine
US1400573A (en) Suction lifting implement
US1729131A (en) Holder for pressure-fluid-operated tools
US2698653A (en) Tool for removing underseal from automobile bodies and the like
US2429669A (en) Press
US3779057A (en) Appliance for treating especially thin-walled metal work pieces
SU49721A1 (en) Electric drill with pneumatic pressure
JPS5662626A (en) Pressing device simultaneously performing part working and conveying and positioning
US3298048A (en) Machine for roughening the margin of the bottom of a shoe
US699732A (en) Press.
US1587816A (en) Sheet-feeding apparatus
US800550A (en) Punching-machine.
GB633568A (en) Injection-moulding apparatus