JP2005271091A - Ring pullout device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ring pullout device, smoothly and efficiently pulling out metal rings for a plurality of products formed by cutting a metal-made thin plate drum from a cutting holder without lowering the accuracy, and very easily removing end-cut rings. <P>SOLUTION: This ring pullout device is provided with a metal ring holding member 3 for pressing metal rings for a plurality of products held on a cutting holder 2 from the outer periphery and holding the same, and a pair of end-cut ring holding members 4, 5 for pressing a pair of end-cut rings on both sides from the outer periphery and holding the same. The metal ring holding member 3 and the respective end-cut ring holding members 4, 5 are formed cylindrical, and divided into two or more parts in the radial direction to be freely opened and closed, and the members are provided with a first opening and closing driving means 21 for driving the metal ring holding member 3 to open and close and a second opening and closing driving means 36 for integrally driving both end cuttings of ring holding members 4, 5 to open and close. The device further includes a forward and backward movement driving means 10 for moving forward and backward the metal ring holding member 3 and both-end-cut ring holding means 4, 5 toward the cutting holder 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  In the present invention, a metal thin plate drum is held on the outer periphery of a cutting holder and cut into a ring shape, and then a plurality of metal rings and a pair of end-cut rings cut to a predetermined width are pulled out from the cutting holder. The present invention relates to a ring drawing device.

  For example, in a power transmission belt employed in a continuously variable transmission, a laminated ring formed by laminating a plurality of metal ring members is used in order to bind together a plurality of elements arranged in a ring shape. It is done. The metal ring constituting this type of laminated ring is formed by cutting a cylindrical drum formed by welding both ends of a rectangular metal thin plate into a ring shape with a predetermined width.

  Conventionally, when forming a metal ring by cutting a cylindrical drum every predetermined width, for example, as seen in Patent Document 1, the drum is used as a rotating cutting holder having a shape corresponding to the drum. Holding and rotating the drum through the cutting holder, the blade is cut at a predetermined width in the circumferential direction of the drum.

  At this time, the side edges of the drum may be scratched or distorted due to contact with other parts, etc. In order to obtain a highly accurate metal ring, a predetermined range from the side edges of the drum is the product. It is removed as a cut-off ring that is not used for the metal ring. Such a cut ring is formed narrower than the product metal ring in consideration of the yield of the product metal ring.

By the way, the product metal ring and the pair of end-cut rings cut in a ring shape from the drum are both pulled out from the cutting holder and dropped into a receiving box, etc. Sorting work is performed, and only the metal ring for products is sent to a subsequent process such as a shaping process. In such a manual work for removing the cut-off rings, for example, it is necessary to measure the width dimension of each metal ring with a gauge to find a cut-off ring narrower than the metal ring for products. Therefore, there was a disadvantage that work efficiency was poor. In addition, during the operation of removing the cut-off ring, the product metal rings may come into contact with each other, which may reduce the accuracy of the product metal ring.
No. 02/028580 (FIG. 1)

  In order to eliminate such inconvenience, the present invention can smoothly and efficiently pull out a plurality of metal rings for product cut from a metal thin drum from a cutting holder without reducing the accuracy thereof, It is an object of the present invention to provide a ring pulling device capable of extremely easily performing a work for removing a ring with a broken end.

  In order to achieve such an object, the present invention holds a drum formed in a cylindrical shape by a thin metal plate on the outer periphery of a cylindrical cutting holder, cuts into a circular shape, and then cuts to a predetermined width. Pulling out a plurality of metal rings for products and a pair of end-cut rings narrower than the metal rings for products cut from both ends of the drum when the metal rings for products are formed from the cutting holder The device is formed in a cylindrical shape capable of accommodating the plurality of metal rings for products, and can be opened and closed by dividing into a plurality of pieces in the radial direction, and held on the outer periphery of the cutting holder by closing in the radial direction. Further, a metal ring holding member that presses and holds the plurality of metal rings for products from the outer periphery thereof, a first opening / closing drive means for driving opening and closing of the metal ring holding member, and a shaft of the metal ring holding member It is provided adjacent to both ends in the direction, and can be opened and closed by dividing into a plurality of parts in the radial direction. By closing in the radial direction, the pair of end cut rings held on the outer periphery of the cutting holder are pressed from the outer periphery. A pair of end-breaking ring holding members, second opening / closing driving means for integrally opening and closing the both-end-cutting ring holding members, a plurality of product metal rings and a pair of end cuttings along the axial direction of the cutting holder A hooking claw that is provided on the one end-cut ring holding member located at the rear end of the ring pull-out direction and holds the rear edge of the end-cut ring held by the end-cut ring holding means, and the metal ring holding member And an advancing / retreating drive means for advancing / retreating the pair of cut end ring holding means along the axial direction of the cutting holder.

  According to the ring drawing device of the present invention, first, the drum is cut into a ring shape while being held on the outer periphery of the cutting holder, and a pair of metal rings for products and a pair formed at both ends in the axial direction thereof. Are formed. Next, the metal ring holding member is opened by the first opening / closing driving means, and at the same time, the pair of end ring holding members is opened by the second opening / closing driving means. Subsequently, the advancing / retreating drive means advances the metal ring holding member and the pair of cut end ring holding members toward the cutting holder, and opens them at the outer peripheral positions of the plurality of product metal rings held by the cutting holder. The opened metal ring holding member is located, and the open end ring holding member is located at the outer peripheral position of each of the pair of end cut rings. Next, the metal ring holding member is closed by the first opening / closing driving means, and at the same time, the end-opening ring holding member is closed by the second opening / closing driving means. Thereby, the metal rings for a plurality of products are pressed from the outer periphery to the metal ring holding member and are held inside the metal ring holding member. Similarly, the pair of end piece rings are pressed from the outer periphery to the end piece ring holding member and held inside the end piece ring holding member. At this time, the rear end edge of one end-cut ring located at the rear end in the drawing direction along the axial direction of the cutting holder is hooked with a hooking claw provided on one end-cut ring holding member.

  Subsequently, the metal ring holding member and the pair of cut end ring holding members are moved back in the pulling direction along the axis of the cutting holder by the advance / retreat driving means. At this time, all the metal rings for products and the pair of end-cut rings are pressed from the outer periphery by the metal ring holding member and the end-cut ring holding member, respectively, and are fixed inside the metal ring holding member and the end-cut ring holding member. Since it is pushed and fed by the hooking claw through an end-breaking ring located at the rear end, it is pulled out from the cutting holder without being left behind. As described above, according to the present invention, all the metal rings for products and the pair of end cut rings can be smoothly pulled out by the metal ring holding member and the end cut ring holding member, and contact between the rings is also prevented. The metal ring for products can be pulled out from the cutting holder while maintaining high accuracy.

  Next, the pair of end ring holding members are opened by the second opening / closing driving means. Thereby, the holding state of the end piece ring by the end piece ring holding member is released, and the end piece ring is dropped and discharged. Thus, according to the present invention, it is possible to easily remove only the end piece ring while maintaining the state in which the product metal ring is held on the metal ring holding member, and the contact between the product metal ring and the end piece ring is facilitated. Therefore, it is possible to reliably maintain the accuracy of the product metal ring and send the product metal ring to a subsequent process such as a shaping process.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway side view of a ring pulling device of the present embodiment, FIG. 2 is an explanatory view showing a metal ring holding member and first opening / closing driving means, and FIG. 2 is an explanatory view showing the opening / closing drive means, FIG. 4 is an explanatory view showing the attachment state of the latching claw, and FIG. 5 is an explanatory view schematically showing the operation of the ring pulling device of this embodiment.

  The ring pulling device 1 of the present embodiment pulls out a metal ring W (see FIG. 5) that is held in a cylindrical cutting holder 2 provided in a drum cutting device (not shown) and cut in a ring shape from the drum. Is.

  First, the structure of the ring drawing device 1 will be described. As shown in FIG. 1, the drawing device 1 includes a metal ring holding member 3 and a pair of cut end ring holding members 4 and 5 provided adjacent to both sides of the metal ring holding member 3. The metal ring holding member 3 and the cut end ring holding members 4 and 5 are supported via a frame 9 on a sliding base 8 that slides along a rail 7 provided on the machine base 6. The rail 7 extends in the axial direction of the cutting holder 2, and the sliding base 8 is connected to a piston rod 10 of a cylinder (advance / retreat driving means) (not shown). Due to the expansion and contraction of the piston rod 10 of the cylinder, the sliding base 8 is slid along the rail 7, and the metal ring holding member 3 and the pair of end ring holding members 4, 5 are moved along the axial direction of the cutting holder 2. Advance and retreat.

  As shown in FIG. 2, the metal ring holding member 3 is formed in a cylindrical shape that can be divided up and down and is supported by a support plate 11 of the frame 9. The metal ring holding member 3 is movable in the direction in which the upper half 12 and the lower half 13 approach and separate from each other via the support plate 11 of the frame 9. The upper half 12 of the metal ring holding member 3 includes a semicircular metal ring pressure contact portion 14 whose inner surface is pressed against the metal ring W (see FIG. 5), and horizontal from both radial sides of the metal ring pressure contact portion 14. And a pair of connecting portions 15 projecting in the direction. The lower half portion 13 of the metal ring holding member 3 is vertically symmetrical with the upper half portion 12, and similarly to the upper half portion 12, a semicircular metal ring pressure contact portion 16, and the metal ring pressure contact portion 14 and a pair of connecting portions 17 projecting horizontally from both radial sides.

  As shown in FIG. 1, the connecting portion 15 of the upper half 12 and the connecting portion 17 of the lower half 13 are guided in the vertical direction by guide rods 18 provided on the support plate 11 and extending in the vertical direction. The The upper end of each guide rod 18 is provided with a rising restricting member 19 that abuts on the connecting portion 15 of the raised upper half 12, and the lower end of each guide rod 18 is connected to the lower half 13. A lowering restricting member 20 is provided in contact with 17. Further, the main body of the cylinder 21 (first opening / closing drive means) is connected and held to the connecting portion 17 of the lower half 13, and the piston rod 22 of the cylinder 21 is connected to the connecting portion 15 of the upper half 12. . As shown in FIG. 2, when the piston rod 22 of the cylinder 21 is extended, the connecting portion 15 of the upper half 12 connected to the piston rod 22 is restricted by the rise restricting member 19 of the guide rod 18. Ascending, the connecting portion 17 of the lower half 13 connected to the main body of the cylinder 21 is lowered until it is restricted by the lowering restricting member 20 of the guide rod 18, and the metal ring holding member 3 is opened. When the piston rod 22 of the cylinder 21 is shortened, the connecting portion 15 of the upper half 12 connected to the piston rod 22 is lowered until it contacts the support plate 11, and the lower half 13 connected to the main body of the cylinder 21. The connecting portion 17 is raised until it comes into contact with the support plate 11, and the metal ring holding member 3 is closed. Thus, the metal ring holding member 3 can be opened and closed simply by expanding and contracting the piston rod 22 of the cylinder 21. The inner diameters of the upper and lower metal ring press contact portions 14 and 16 when the metal ring holding member 3 is closed are set to dimensions that hold the metal ring W by pressing it from the outer periphery.

  A pair of end ring holding members 4 and 5 provided adjacent to both sides of the metal ring holding member 3 are formed in substantially the same shape. First, referring to FIG. 1 and FIG. The end piece ring holding member (first end piece ring holding member 4) will be described. As shown in FIG. 3, the first cut ring holding member 4 is formed in a cylindrical shape that can be divided into upper and lower parts and supported by the support plate 11 of the frame 9. The first cut ring holding member 4 is movable in the direction in which the upper half 23 and the lower half 24 approach and separate from each other via the support plate 11 of the frame 9. The upper half portion 23 of the first end ring holding member 4 includes a semicircular end ring contact portion 25 that presses the inner surface against the end portion ring Y (see FIG. 5), and both radial sides of the end portion ring press portion 25. And a pair of connecting portions 26 projecting in the horizontal direction. The lower half portion 24 of the first end ring holding member 4 has a vertically symmetrical shape with the upper half portion 23, and the semicircular end ring contact portion 27 and the end ring like the upper half portion 23. A pair of connecting portions 28 projecting horizontally from both radial sides of the pressure contact portion 27 are provided.

  Further, as shown in FIGS. 1 and 3, each connecting portion 26 of the upper half portion 23 of the first cut ring holding member 4 is slidably penetrated through the support plate 11 and extends in a vertical direction. It is connected to the upper end of the moving rod 29. The lower ends of both sliding rods 29 are connected to a first elevating plate 30 that can be moved up and down at a position below the first cut ring holding member 4. Thereby, the upper half part 23 of the 1st end piece ring holding member 4 raises / lowers via both the sliding rods 29 with raising / lowering of the 1st raising / lowering board 30. As shown in FIG. Further, the frame 9 is provided with a restriction block 31 that abuts against each connecting portion 26 and restricts the rise when the upper half portion 23 of the first end ring holding member 4 is raised.

  Each connecting portion 28 of the lower half portion 24 of the first cut ring holding member 4 is provided to be slidable in the vertical direction along the sliding rod 29. A second elevating plate 33 is connected to the lower side of the lower half 24 via a connecting member 32. The second elevating plate 33 is provided below the first elevating plate 30 without interfering with the first elevating plate 30 via a notch portion 34 formed in the first elevating plate 30 and can be raised and lowered. It is said that. Thereby, the lower half part 24 of the 1st end piece ring holding member 4 raises / lowers via the connection member 32 with the raising / lowering of the 2nd raising / lowering board 33. As shown in FIG. On the sliding base 8, there is provided a regulating member 35 that abuts against the second elevating plate 33 and regulates its lowering when the lower half 24 of the first cut-off ring holding member 4 is lowered. .

  The main body of a cylinder 36 (second opening / closing drive means) is connected and held to the second lift plate 33, and the piston rod 37 of the cylinder 36 is connected to the first lift plate 30. As shown in FIG. 3, when the piston rod 37 of the cylinder 36 is extended, the connecting portion 26 of the upper half 23 is connected via the first lifting plate 30 and the sliding rod 29 connected to the piston rod 37. It rises until it is regulated by the regulation block 31, descends until the second elevating plate 33 connected to the main body of the cylinder 36 contacts the regulation member 35, and the lower half 24 descends along the sliding rod 29. The first cut metal ring holding member 3 is in an open state. When the piston rod 37 of the cylinder 36 is shortened, the connecting portion 26 of the upper half 23 is lowered through the first lifting plate 30 connected to the piston rod 37 until it comes into contact with the support plate 11. The connecting portion 28 of the lower half 24 is raised through the second lifting plate 33 connected to the support plate 11 and the first cut ring holding member 4 is closed. Note that a through hole 38 is formed in the sliding base 8 in order to prevent interference with the main body of the lowered cylinder 36. In this manner, the first end ring holding member 4 can be opened and closed simply by expanding and contracting the piston rod 37 of the cylinder 36. Note that the inner diameters of the upper and lower metal ring pressure contact portions 25 and 27 when the first end-cut ring holding member 4 is closed are set so as to press and hold the end-cut ring X from the outer periphery.

  The other end-cut ring holding member (second end-cut ring holding member 5) is provided at a position facing the first end-cut ring holding member 4 through the metal ring holding member 3, as shown in FIG. ing. The second end ring holding member 5 is configured in the same manner as the first end ring holding member 4, and each connecting portion 40 of the upper half portion 39 of the second end ring holding member 5 is slidable on the support plate 11. And is connected to the upper end of a sliding rod 41 extending in the vertical direction. A lower end of the sliding rod 41 is connected to the first lifting plate 30. Each connecting portion 43 of the lower half portion 42 of the second end ring holding member 5 is provided so as to be slidable in the vertical direction along the sliding rod 41. The second elevating plate 33 is connected to the lower side of the lower half 42 via a connecting member 44. As a result, the second end ring holding member 5 is opened and closed by simply extending and contracting the piston rod 37 of the cylinder 36 together with the first end ring holding member 4.

  Further, as shown in FIG. 1, a plurality of latching claws 45 are provided at predetermined intervals on the edge of the second end ring holding member 5 facing the cutting holder 2 as shown in FIG. 4. It has been. Although each latching claw 45 is mentioned later, when the 2nd end piece ring holding member 5 is closed, the rear end edge of one end piece ring Y located in the rear end of the drawing direction held by cutting holder 2 Hang up.

  Next, the operation of the ring pulling device 1 of the present embodiment having the above-described configuration will be described with reference to FIG. As shown in FIG. 5 (a), a plurality of product metal rings W and a pair of end-cut rings X and Y are cut and formed from the drum held by the cutting holder 2 of the drum cutting device, and then opened. The metal ring holding member 3 and the both-end-cut ring holding members 4 and 5 advance toward the cutting holder 2. At this time, the metal ring holding member 3 is in a state in which the upper half 12 and the lower half 13 are separated from each other by driving the cylinder 21 as shown by phantom lines in FIG. 5), as indicated by the phantom line in FIG. 3, the upper half 23 (39) and the lower half 24 (42) are separated from each other by driving the cylinder 36. Further, the metal ring holding member 3 and the both end-cut ring holding members 4 and 5 are driven forward along the rail 7 by the piston rod 10 as shown in FIG.

  Next, as shown in FIG. 5 (a), the metal ring holding member 3 is positioned on the outer periphery of the product metal ring W held by the cutting holder 2, and each end ring is held on the outer periphery of each end ring X, Y. When the members 4 and 5 are positioned, the metal ring holding member 3 and the both ends cut ring holding members 4 and 5 are closed. As a result, the plurality of product metal rings W are pressed and held inside the metal ring holding member 3 while being pressed from the outer periphery by the metal ring holding member 3, and each end piece ring X, Y is a respective end piece ring. In a state of being pressed from the outer periphery by the holding members 4, 5, the end-cut ring holding members 4, 5 are pressed and held inside. Furthermore, at this time, each latching claw 45 of the second end-cut ring holding member 5 latches the rear end edge of one end-cut ring Y on the rear end side in the drawing direction.

  Subsequently, as shown in FIG. 5 (b), the metal ring holding member 3 and the both-end-cut ring holding members 4, 5 are retracted in the drawing direction along the axial direction of the cutting holder 2. At this time, a plurality of product metal rings W and a pair of end cut rings X and Y are held in pressure contact with each other inside the metal ring holding member 3 and the both end cut ring holding members 4 and 5, and one end cut. Since the rear end edge of the ring Y is hooked by the hooking claws 45, the plurality of product metal rings W and the pair of end-cut rings X and Y are integrally extracted from the cutting holder 2.

  Next, as shown in FIG. 5 (c), the plurality of metal rings for product W are maintained in pressure contact with each other inside the metal ring holding member 3, and the both end cut ring holding members 4, 5 are opened. As a result, the end-cut rings X and Y released from the pressure contact holding by the both-end-cut ring holding members 4 and 5 are dropped due to the reaction and weight due to the sudden opening of the outer periphery and separated from the product metal ring W. Is done. Thereby, the work of removing the cut-off rings X, Y by manual work can be reduced, and only the cut-off rings X, Y can be efficiently separated from the product metal ring W.

  Thereafter, when the metal ring for product W is dispensed, for example, as shown in FIG. 5 (d), the dispenser or the like is placed inside the metal ring for product W in a state of being pressed and held inside the metal ring holding member 3. The holder 46 and the like are inserted, and the metal ring holding member 3 is opened to release the press-contact holding state. And the metal ring W for products can be efficiently discharged | emitted by extracting the holders 46 grade | etc., Such as a discharge device from the metal ring holding member 3 of the open state.

  As is clear from the above description, according to the present invention, the plurality of metal rings W held by the cutting holder 2 and cut and formed in a ring shape from the drum can be prevented from contacting each other. The cutting holder 2 can be pulled out quickly and reliably. In addition, it is possible to reliably remove the cut rings X and Y cut from both edge portions of the drum and efficiently send only the product metal ring W to a subsequent process such as a shaping process.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory side view showing a part of a ring pulling device according to an embodiment of the present invention. Explanatory drawing which shows a metal ring holding member and a 1st opening / closing drive means. Explanatory drawing which shows an end piece ring holding member and a 2nd opening / closing drive means Explanatory drawing which shows attachment state of latching claw Explanatory drawing which shows typically the action | operation of the drawing apparatus of the ring of this embodiment

Explanation of symbols

  W ... Metal ring for product, X, Y ... End cut ring, 1 ... Extraction device, 2 ... Cutting holder, 3 ... Metal ring holding member, 4 ... First end cut ring holding member (end cut ring holding member), 5 ... No. 2 end-cut ring holding members (end-cut ring holding members), 10... Piston rod (advance / retreat drive means), 21... Cylinder (first open / close drive means), 36.

Claims (1)

A plurality of product metal rings cut into a predetermined width after a drum formed in a cylindrical shape by a thin metal plate is held on the outer periphery of a cylindrical cutting holder and cut into a ring shape, and the product metal A ring pulling device for pulling out from the cutting holder a pair of end cut rings narrower than the metal ring for product cut from both ends of the drum when forming the ring,
The plurality of products that are formed in a cylindrical shape that can accommodate the plurality of metal rings for products, can be opened and closed by dividing the plurality of metal rings in the radial direction, and are held on the outer periphery of the cutting holder by closing in the radial direction A metal ring holding member for pressing and holding the metal ring from its outer periphery;
First opening / closing driving means for driving opening / closing of the metal ring holding member;
The pair of metal ring holding members that are provided adjacent to both ends in the axial direction, can be opened and closed by dividing into a plurality of parts in the radial direction, and are held on the outer periphery of the cutting holder by closing in the radial direction. A pair of end-cut ring holding members that press and hold the end-cut ring from its outer periphery;
A second opening / closing driving means for integrally opening / closing the both-end-cut ring holding member;
Provided on the one end ring holding member located at the rear end of the plurality of product metal rings and the pair of end ring in the drawing direction along the axial direction of the cutting holder, and held by the end ring holding means A hooking claw for hooking the rear edge of the ring,
An extraction device for a ring, comprising: a metal ring holding member and a pair of cut end ring holding means; advancing / retreating drive means for advancing and retreating along the axial direction of the cutting holder.

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