JPH0681915U - Suction pad device for exterior paper in unwrapping head - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure the cutting and unsealing of the roll-wrapping paper. [Structure] A pair of pad support rods 2A and 2B having suction pads 14A and 14B at their lower ends are independently moved up and down to provide a difference in suction height of the exterior paper suction of the suction pads 14A and 14B, respectively. The remaining ears of the exterior paper were completely cut and unsealed, and the pad support rods 2A and 2B were prevented from rotating to provide an elevating guide hole 3 which was inserted without floating.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is used for cutting and unsealing an exterior paper enclosing a roll of newspaper such as newspaper by mechanical means without manual work.

[0002]

[Prior art]

 As a conventional technique for cutting and opening the exterior paper enclosing the horizontal roll paper by mechanical means without manual work, there is a means disclosed in the specification and drawings of Japanese Patent Application No. 4-151223. The means has an exterior paper opening head which is located above the exterior paper encapsulating the paper roll and which is vertically provided on a moving body which runs in the axial direction of the paper roll. The opening head has an exterior paper cutting cutter. In order to form a gap between the cut point of the outer paper and the web so that the outer paper can be cut and unsealed without damaging the web, a pair of suction pads is attached to the lower end to suck and float the outer paper part at the cut point. A pair of pad supporting rods are vertically installed so as to be vertically movable. As shown in FIG. 4, the pair of pad support rods RA and RB straddle the cutout portion P of the paper wrapper outer packaging paper E so that the pair of suction pads CA and CB form a curved surface in the circumferential direction of the exterior paper E. The pad supporting rods RA and RB are fixedly mounted on the lower ends of the pad supporting rods RA and RB in a tilted manner, and the pad supporting rods RA and RB are loosely inserted into the diverging arc-shaped elongated holes GA and GB formed through the lifting plate B, respectively. The locking plates SA and SB projecting from the support rods RA and RB are locked to the lifting plate B when the lifting plate B is lifted by the cylinder device C to move the supporting rods RA and RB together. Then, the suction pads CA and CB are pulled up.

Further, one end of a pair of links LA, LB pivotally supported at a central portion by a pivot A erected on the lifting plate B is connected to a bifurcated piston rod of a cylinder device D provided on the lifting plate B, respectively. Since the pad support rods RA and RB are inserted through the other ends of the links LA and LB, the pair of links LA and LB rotate about the pivot axis A by the expansion and contraction operation of the piston rod of the cylinder device D. Then, the pad supporting rods RA, RB are loosely guided in the arc-shaped elongated holes GA, GB that spread out toward the end, and the inclination of the suction pads CA, CB is increased to increase the inclination of the suction paper CA, CB. Is expanded as shown in FIG. 3A to facilitate the insertion of the exterior paper cutting guide member (not shown) into the cutout portion P, and the expansion of the incomplete cutout portion of the outer paper edge portion. It is tearing open.

[0004]

[Problems to be solved by the device]

 In the above-mentioned prior art, since the pad support rods RA, RB float in the arc-shaped elongated holes GA, GB of the rising moving plate B, the suction positions of the suction pads CA, CB on the exterior paper E are constant. It cannot be held in position, which hinders the cutting operation of the exterior paper by the cutting cutter, and the pad support rods RA and RB are inserted into the pair of links RA and RB to rotate around the axis of the support rod. Since it is free, the suction surfaces of the suction pads CA and CB inclined along the curved surface in the circumferential direction of the outer paper do not come into close contact with the outer circumferential surface of the outer paper because the tilt direction changes with the rotation of the pad support rods RA and RB. However, there is a problem in that the outer paper cannot be reliably sucked by the suction pad.

[0005]

[Means for Solving the Problems]

 Therefore, in the present invention, a pair of pad support rods are independently lifted up and down to open the cut portion of the exterior paper without floatingly inserting the pad support rods into the arc-shaped elongated holes, and one pad support rod and the other support rod are independently driven. A difference in rising height from the other supporting rod is provided, and an ascending guide hole through which the pad supporting rod is prevented from rotating is provided in the supporting member of the pad supporting rod, and a pair of pads are provided. A member that stops at the intermediate position of the ascending height of the support rod is provided so that it can move in and out.

[0006]

[Action]

 By the pair of lifting and lowering members independently provided on the supporting member fixed to the unsealing head, the respective pad support rods are inserted into the lifting and lowering guide holes penetrating the supporting member so as to prevent the pad supporting rods from rotating. Since it is guided up and down without rotating around the axis of the supporting rod and without floating, the suction surface of the suction pad can be sucked at a predetermined position in an inclined posture following the curved surface in the circumferential direction of the outer paper. At the same time, a pair of support rods of the suction pad that suction-float the exterior paper are brought into contact with the stoppers at the intermediate positions to stop the exterior paper, and then the exterior paper is incised, and then the suction pads are returned to their original positions and lowered. And the intermediate position stopper is retracted and retracted, and only one pad support rod is raised to the upper limit again to expand the cutout opening of the exterior paper, and the uncut residual portion of the remaining edge of the exterior paper is cut into the cutout edge. To suction height It is intended tearing away by attaching a difference.

[0007]

【Example】

 1 to 3 show an embodiment of an exterior paper suction pad device vertically installed on an opening head. FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a use explanatory view. A support member 1 vertically installed on an unsealing head (not shown) has a pair of pad support rods 2A and 2B, each of which is provided with an elevator guide hole 3 through which a well-known detent means is inserted. The hook members 5A and 5B provided on the upper ends of the pad supporting rods 2A and 2B, which are formed with the cylinders 4A and 4B and are inserted into the elevating guide holes 3, respectively, are cylinder devices 6A independently provided on the supporting member 1. , 6B are engaged with hook holders 7A, 7B formed on the upper ends of the piston rods.

And, lower limit stoppers 8A, 8B which hook holders 7A, 7B contact are erected on the upper surfaces of the cylinder devices 6A, 6B, and the cylinders are mounted on the supporting member 1 above the cylinder devices 6A, 6B. Guide grooves 1A and 1B that allow the rising and stopping position limiting plate 10 of the pad supporting rod that is horizontally retracted and retracted by the device 9 to move smoothly in water are provided in the rising and stopping position limiting plate 10. 11A and 11B and ascending end position stop stoppers 12A and 12B are vertically provided. At the lower ends of the pad support rods 2A and 2B, suction pads 14A and 14B are fixed to the lower ends of the pad support rods 2A and 2B in a tilted posture following the circumferential direction of the outer paper 16 enclosing the paper roll 15. It is set up.

Therefore, when the cylinder devices 6A and 6B are contracted and the suction pads 14A and 14B are attracted to a predetermined position on the exterior paper across the exterior paper cutting line, the hook holders 7A and 7B are respectively moved to the lower limit stoppers 8A and 8A. The heights of the stoppers 8A and 8B are adjusted so as to contact the 8B.

Next, the suction pad suction is confirmed by a known means, and the extension stop position limiting plate 10 is slid by the extension operation of the cylinder device 9 to move the intermediate position stop stoppers 11A and 11B to the cylinder devices 6A and 6B. After advancing to the upper position, the cylinder devices 6A, 6B are extended to raise the hook holders 7A, 7B until they come into contact with the rising intermediate position stop stoppers 11A, 11B as shown in FIG. Sucks and floats to form a gap 17 with the paper roll 15. Therefore, an incision guide member (not shown) that moves back and forth in the opening head in the horizontal direction is inserted into the gap 17 so that the exterior paper is removed. While being floated and held from the surface of the paper roll, the exterior paper 16 floated and held by the cutting cutter is cut along the cutting line.

Then, the suction pad 14A, 14B in the state of sucking the cutout exterior paper portion is moved downward until the hook holder 7A, 7B abuts on the lower limit stopper 8A, 8B, and the lower pad support rod 2A, 2B is moved to the upper limit position. The lift position stop limiting plate 10 is moved backward so that the stop stoppers 12A, 12B are located above the hook holders 7A, 7B, and the lift intermediate position stop stoppers 11A, 11B are removed from the positions above the hook holders 7A, 7B. When only one cylinder device 6A is operated to raise the pad support rod 2A until the hook holder 7A abuts against the upper limit position stop stopper 12A as shown in FIG. 3, the exterior of the suction pad 14A is adsorbed. Since the paper cutting portion is lifted higher than the exterior paper portion on the side where the suction pad 14B is sucked, the cutting opening is enlarged. The guide member can be easily inserted and moved forward, and the uncut portion left in the ear of the exterior paper can be torn off to completely open the exterior paper.

[0012]

[Effect of device]

 According to the present invention, the pad support rod is inserted into the rotation stop elevating guide hole penetrating the supporting member fixed to the unsealing head without floating up and down, so that the suction pad is located at the suction fixed position across the exterior paper cutting line. Since it securely adsorbs to the exterior paper, the cut portion of the exterior paper is reliably suctioned and floated so that only the exterior paper can be cut and opened by the incision cutter without trouble, and one suction pad is used with the rising and stopping position limiting plate that moves in and out. By raising the exterior paper cut portion on the side that has been adsorbed by the above with respect to the exterior paper cut portion on the side that has been adsorbed by the other suction pad, the cut opening can be expanded and insertion and pushing of the incision guide member can be facilitated. At the same time, the incomplete portion of the exterior paper cut that has been left on the remaining edge of the exterior paper is torn off to ensure complete cutting and opening of the exterior paper, and its practical effect is remarkable.

[Brief description of drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a side view of the present invention.

FIG. 3 is a front view illustrating the operation of the present invention.

4A and 4B are explanatory views of a conventional example, where FIG. 4A is a front view of a main part and FIG. 4B is a plan view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support member 2A, 2B Pad support rod 3 Lift guide hole 5A, 5B Hook member 6A, 6B, 9 Cylinder device 7A, 7B Hook holder 8A, 8B Lower limit stopper 10 Lift stop position limit plate 11A, 11B Lift intermediate position stop stopper 12A, 12B Ascending limit position stop stopper 14A, 14B Suction pad 15 Paper roll 16 Exterior paper 17 Gap

Claims (1)

[Scope of utility model registration request] 1. An exterior paper unsealing head, which is located above a roll of paper wrapped in exterior paper and laid horizontally, and which is hung vertically on a moving body that travels in the axial direction of the web of winding, and is installed oppositely across a line for cutting and opening the exterior paper. A pair of pad support rods each having a pair of suction pads each having a suction surface inclined along the curved surface of the outer peripheral direction of the outer paper and fixed at the lower ends thereof, and a support provided with an ascending / descending guide hole through which the support rods are respectively prevented from rotating. A pair of members, a pair of up-and-down moving members that are attached to the supporting member and drive the pair of pad support rods to independently move up and down, and a pair of up-and-down moving members that are attached to the supporting member so as to move forward and backward. An exterior paper suction pad device having a lift stop position limiting plate having a stopper for stopping the pad support rod at a lift intermediate position and a stopper for stopping the pad support rod at a lift limit position.