JP4094635B2 - Drum can opening processing machine - Google Patents

Description

  The present invention relates to a drum can opening processing machine that separates and opens a top plate of a drum can from a body portion.

  Recently, asbestos has been highlighted as a pollution problem. When transporting waste such as asbestos that is harmful to the human body from the site of removal, a drum can is suitable as the container. It is necessary to separate it from the body with a plate and open it.

  The present applicant has already provided what was described in Patent Document 1 (Japanese Utility Model Publication No. 7-20075) as a drum can automatic opening processing machine for separating and opening the top plate of the drum can from the body.

  The drum can automatic opening machine includes a drum can push-up device that rotatably mounts and pushes up the drum can, an ear receiving roller that receives an ear portion of the drum can pushed up by the drum can push-up device from above, and a push-up ear portion. The rotating blade body that cuts the ear portion while rotating the drum can by pinching the ear portion in cooperation with the ear receiving roller that bites in from below, and the ear portion cut and raised by the rotating blade body through the pressure roller Ear pressurizing device that pressurizes upward from the bottom, hammer device that repeatedly taps the raised ear from the bottom, and top plate removed from the trunk at the ear And a top plate removing device.

  The drum can opened by separating the top plate by such a drum can automatic opening processing machine is dangerous because a peripheral edge (upper surface opening edge) of the opened upper surface becomes a sharp cut and a burr or the like is generated.

However, the conventional automatic drum can opening machine does not include means for processing the upper surface opening edge which is a cut surface.
No. 7-20075

  The subject of this invention is providing the drum can opening processing machine which can shape the upper surface opening edge which is the cut end of the drum can opened by separating the top plate from the trunk | drum to a safe state.

  The present invention relates to a drum can opening processing machine that cuts the ear portion of a drum can with a cutter, removes the top plate, and opens the drum can. The primary curl roller that bends the upper surface opening edge of the drum can downward by rotating the annular groove on the outer surface from the upper side to the upper surface opening edge of the drum can pushed up and rotating, and the outer surface of the drum can in the drum can A guide roller that rotates while being in contact with the inner surface; and a secondary curl roller that rotates while pressing an annular groove on the outer peripheral surface outside the drum can on the upper surface opening edge of the drum can. The secondary curl roller is pivotally supported by a rotating arm, and when the rotating arm rotates, the secondary curl roller rotates while changing its posture, and the upper edge of the drum can be bent by the primary curl roller. Is designed to bend further.

  The invention according to claim 2 includes, in addition to the above-described configuration, a rotating table that is rotationally driven above the drum can pushed up by the drum can lifting device, and the rotating table includes a primary curling roller, a secondary curling roller, and a guide. A roller and a rotation arm are mounted, and the primary curl roller, the secondary curl roller, and the guide roller are rotated along the upper surface opening edge of the drum can as the turntable rotates.

  In the invention according to claim 3, a plurality of primary curling rollers and guide rollers are mounted on the turntable at intervals in the circumferential direction.

  In the invention according to claim 4, the rotating arm is connected to the cylinder device via a link rod penetrating the rotating shaft of the turntable so as to slide up and down, and the rotating arm is rotated by the cylinder device. It is like that.

  According to the present invention, the top opening edge, which is a cut opening of the drum can that is opened by separating the top plate from the body, is bent downward by the primary curling roller and then further bent by the secondary curling roller that changes the posture. The drum can be curled into a “9” shape, and the opened drum can can be provided as a safe one. Moreover, since it can be automatically curled immediately after opening, workability is good.

  According to the second aspect of the present invention, the primary curling roller, the secondary curling roller, and the guide roller rotate along the upper surface opening edge of the drum can with the rotation of the turntable. It can be carried out.

  According to the invention of claim 3, since each of the primary curling roller and the guide roller is pivotally supported by the rotating table at intervals in the circumferential direction, the drum can is maintained in an upright posture so as not to tilt. The top opening edge can be curled cleanly.

  According to the fourth aspect of the present invention, the rotating arm that pivotally supports the secondary curl roller is connected to the cylinder device via the link rod that penetrates the rotating shaft of the turntable so as to be slidable in the vertical direction. Is rotated by this cylinder device, so that the mechanism for changing the attitude of the secondary curl roller can be simplified.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the drum can opening processing machine of this embodiment includes a drum can lifting device 1, an ear cutting device 2, a top plate removing device 3, and a hammer device 5. It is the same as that disclosed in Patent Document 1 that the plate is separated and opened.

  These devices have almost the same structure as that disclosed in Patent Document 1 as follows.

  The drum can push-up device 1 is mounted on a frame 6a of a machine frame 6 and supports a plurality of bottom receiving rollers 8 on a lifting table 7 at predetermined intervals in the circumferential direction, and a drum can clamping mechanism 9 is mounted. The lifting and lowering table 7 is lifted and lowered by a push-up cylinder device 10, and the drum can 11 transported on a conveyor (not shown) is picked up and mounted on the bottom receiving roller 8 so as to be rotatable. The outer periphery of the drum portion of the drum can 11 is rotatably held by the mechanism 9.

  The ear cutting and raising device 2 is mounted on a side frame 12 attached to one side of the machine frame 6 so that the whole is advanced and retracted by the advance / retreat cylinder device 4 as shown in FIG. Then, the ear cutting and raising device 2 advances from the retracted position shown in FIG. 1 to the working position as shown in FIGS. 2 and 6, and the ear 11a of the drum can 11 pushed up by the drum can lifting device 1 is viewed from above. After receiving by the ear receiving roller 13, as shown in FIGS. 6 and 7, the lower rotary blade body 14 is cut together with the shaft 15 and pushed up by the cylinder device 16, and the rotary blade body 14 is pushed up by the ear portion. By cutting into the lower side of 11a and rotating the rotary blade 14 with a motor 17, the ear 11a can be cut up while the drum can 11 is rotated.

  The top plate removing device 3 is mounted on a frame 18 in the middle of the machine frame 6, and at the tip of a swing arm 20 that is horizontally turned by a turning cylinder device 19, a suction pad 21 can be moved vertically and vertically downward. It is pivotally supported.

  The hammer device 5 pivotally attaches the base end of the hammer cylinder device 29 to the base frame 18, and a hammer rod 30 is attached to the machine frame 6 diagonally upward by a guide ring 31 and slidable up and down. As shown, the cylinder rod 29 reciprocates the hammer rod 30 up and down.

With the above configuration, the drum can 11 is opened as follows.
When the drum can 11 transported on the conveyor is positioned directly above the drum can push-up device 1 and detected by a sensor (not shown), the drum can clamping mechanism 9 of the drum can push-up device 1 is actuated. As a result, the drum portion 11 is clamped, and the lifting table 7 is raised by the push-up cylinder device 10 so that the drum portion 11 reaches a predetermined height, that is, the height at which the upper edge of the ear portion 11a is in pressure contact with the ear portion receiving roller 13. Pushed up.

  After the drum can 11 is pushed up, the cylinder device 16 of the ear cutting and raising device 2 is actuated to push up the rotary blade body 14 and the rotary blade body 14 is rotated by the motor 17 and, as shown in FIG. The ear part 11a is cut into the part 11a from below and the ear part receiving roller 13 holds the ear part 11a. Thus, the rotary blade 14 cuts the ear portion 11a while rotating the drum 11.

  After a predetermined time set by the timer after the rotary blade 14 starts to cut the ear 11a, the cylinder device 29 of the hammer device 5 is repeatedly operated, and the hammer rod 30 rotates as shown in FIG. The drum 11 is repeatedly hitting the ear 11a of the drum can 11 slightly upward from the lower side.

  As a result, the ear 11a of the drum 11 receives the lowering action by the rotary blade 14 from the lower side and the lowering action by the hammer rod 30 while rotating. (FIG. 7) is forcibly separated from the body of the drum 11 at the ear 11a. Then, after the separated top plate 11b is adsorbed by the suction pad 21 of the top plate removing device 3, the swing arm 20 is removed from the body of the drum can 11 by turning outward as shown in FIG. The suction of the suction pad 21 is released and eliminated.

   In order to curl the upper end opening edge which is the cut end of the drum 1 opened in this way, the following curling device 50 is mounted on the upper frame 6a of the machine frame 6 in this drum can opening processing machine.

  The structure will be described with reference to FIG. 9. A rotating table 51, which is a disk, is installed on the lower side of the upper frame 6a so as to be horizontally rotatable by a rotating shaft 52. The rotating table 51 is installed on the upper frame 6a. The rotation of the curled motor 53 is transmitted through the rotation transmission mechanism 54 at a reduced speed. In this example, the rotation transmission mechanism 54 includes a chain 55, gears 56 and 57, and the like.

  On the lower surface of the turntable 51, a plurality of primary curl rollers 58 are rotatably supported by respective bearing frames 59 at intervals in the circumferential direction (only one is shown). More than a few guide rollers 60 are rotatably supported by roller shafts 61 at intervals in the circumferential direction.

  Further, a rotating arm 62 is mounted on the lower surface of the turntable 51 so as to be rotatable up and down by a shaft 63, and a secondary curl roller 64 is rotatable at one end of the rotating arm 62 by a roller shaft 65. It is pivotally supported. A long hole 66 is provided at the other end of the rotating arm 62.

  On the other hand, a small roller 68 is pivotally supported at the lower end of a link rod 67 that passes through the rotary shaft 52 of the turntable 51 so as to be slidable in the vertical direction. Is fitted. A base end of a lever 70 is pivotally supported by a shaft 71 on a protective box 69 that covers the rotation transmission mechanism 54, and an intermediate portion of the lever 70 and an upper end of a link rod 67 are connected by a pin 72. The tip of the lever 70 is connected by a pin 75 and a piston rod 74 of a curling cylinder device 73 pivotally supported by a protective box 69.

  Therefore, when the lever 70 is turned up and down by the curling cylinder device 73, the link rod 67 slides up and down along the rotation shaft 52, and the turning arm 62 is turned up and down. As a result, the secondary curl roller 64 pivotally supported at the tip of the rotating arm 62 changes its posture as shown by a solid line and a chain line in FIG.

  As shown in FIG. 11, the secondary curl roller 64 has an annular groove 64c having a U-shaped cross section between the flanges 64a and 64b on both sides having the same outer diameter.

  As shown in FIG. 10, the primary curling roller 58 has different diameters of the flanges 58a and 58b on both sides, and an annular groove 58c having a U-shaped cross section is formed therebetween.

The curling device 50 is configured as described above, and the operation thereof is as follows.
When the drum can 11 is opened by separating the top plate 11b as described above, the drum can 11 is pushed up by the drum can push-up device 1, and the top opening edge that is the cut end is pressed against the plurality of primary curl rollers 58 from directly below. At the same time, a plurality of guide rollers 60 enter the drum 11.

  When the turntable 51 is rotated by the curling motor 53, the plurality of primary curling rollers 58 rotate and rotate (revolve) while being in pressure contact with the upper surface opening edge of the drum can 11, and simultaneously, the plurality of guide rollers 60. However, while rotating within the drum can 11 with the outer peripheral surface being in contact with the inner surface of the drum can, the drum can turn (revolve) so that the drum can 11 does not tilt. At this time, the flanges 58a and 58b on both sides of the primary curl roller 58 have different diameters as described above. As shown in FIG. 10, the large-diameter flange 58a is inside the drum can 11, and the small-diameter flange 58b is a drum can. 11, the annular groove 58 c having a U-shaped cross section is brought into pressure contact with the upper surface opening edge 11 c of the drum can 11 from the upper side, so that the upper surface opening edge 11 c of the drum can 11 is bent outwardly in an inverted U shape.

  After that, the rotating arm 62 is rotated by the curling cylinder device 73, and the secondary curling roller 64 pivotally supported at the tip thereof is substantially horizontal from the oblique posture (state shown by a chain line in FIG. 9). When the posture (indicated by the solid line) is changed, the secondary curl roller 64 rotates with its annular groove 64c fitted to the upper surface opening edge 11c bent in an inverted U shape as described above. However, since it turns (revolves) together with the rotating arm 62, the upper surface opening edge 11c is further bent until it has a cross-section "9" shape as shown in FIG.

  When the curling of the upper surface opening edge 11c that is the cut end is performed for a set time by, for example, a timer and the rotation of the turntable 51 is completed, the rotating arm 62 is rotated back by the curling cylinder device 73, The secondary curl roller 64 moves away from the upper surface opening edge 11 c of the drum can 11. Thereafter, the drum can 11 is lowered by the drum can push-up device 1 and discharged out of the drum can opening processing machine by the conveyor.

  When a new drum can 11 is carried in, the opening operation for separating the top plate and the curling operation by the curling device 50 are repeated as described above.

It is a front view of the whole drum can opening processing machine of the Example of this invention. It is a front view of the state which the ear part raising device advanced. It is a front view of the state which is performing the cutting-off operation | movement of the top plate of a drum can. It is a front view of the state which has excluded the separated top plate. It is detail sectional drawing of an ear | edge part raising apparatus. It is a detailed sectional view at the time of the cutting and raising operation. It is a partially expanded view same as the above. It is a front view which mainly shows the hammer apparatus which strikes an ear | edge part, and a top plate exclusion apparatus. It is a partially notched front view of the curling apparatus which bends the upper surface opening edge of a drum can. It is a front view which shows the bending operation | movement by the primary curl roller. It is a front view which shows the bending operation | movement by a secondary curl roller.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum can lifting device 3 Top plate exclusion device 5 Hammer device 11 Drum can 11a Ear part 11b Top plate 11c Upper surface opening edge 50 Curl device 51 Rotation stand 52 Rotating shaft 53 Curl motor 54 Rotation transmission mechanism 55 Chain 56/57 Gear 58 Primary curl Roller 58a / 58b collar 58c annular groove 59 bearing frame 60 guide roller 61 roller shaft 62 rotating arm 63 shaft 64 secondary curl roller 64a / 64b collar 64c annular groove 65 roller shaft 66 long hole 67 link rod 68 small roller 69 Protective box 70 Lever 71 Shaft 72 Pin 73 Curl cylinder device 74 Piston rod 75 Pin

Claims (4)

  In the drum can opening processing machine that cuts the ear of the drum can with a cutter, removes the top plate, and opens the drum can, the drum can lifted up and pushed up by the drum can push up device, and the drum can lifted up A primary curl roller that bends the upper surface opening edge of the drum can downwardly by rotating the annular groove on the outer surface of the drum can from the upper surface by pressing it from above, and the outer surface of the drum can contact the inner surface of the drum can A rotating guide roller, and a secondary curling roller that rotates by pressing an annular groove on the outer peripheral surface of the drum can at the opening edge of the upper surface of the drum can. The secondary curling roller is pivotally supported by a rotating arm. The upper curb of the drum can be bent by the primary curling roller by rotating the secondary curling roller while changing its posture as the pivoting arm rotates. Drums unsealing machine, characterized by being adapted to further bend.   The rotary table is provided with a rotary table that is rotationally driven above the drum can pushed up by the drum can lifting device, and a primary curl roller, a secondary curl roller, a guide roller, and a rotating arm are mounted on the rotary table. 2. The drum can opening processing machine according to claim 1, wherein the curling roller, the secondary curling roller, and the guide roller are configured to rotate along an upper surface opening edge of the drum can.   3. The drum can opening processing machine according to claim 1, wherein each of the primary curling roller and the guide roller is mounted on the rotating table at a plurality of intervals in the circumferential direction.   The rotating arm is connected to the cylinder device via a link rod that penetrates the rotating shaft of the turntable so as to be slidable up and down, and the rotating arm is rotated by the cylinder device. The drum can opening processing machine of Claim 1, 2, or 3.

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