JPH085587B2 - Thin bending device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin piece folding device suitable for bending thin pieces such as a bag bundle.

2. Description of the Related Art Conventionally, as a thin sheet bending device, a pressure cylinder is arranged above a storage plate, a folding blade is fixed to a piston rod of the pressure cylinder, and two folding rollers are rotated below the storage plate. Japanese Patent Publication No. 57-37, in which the shaft of the folding roller is provided with a tension spring so as to reduce the gap between the folding rollers.
Known as the 489 publication.

The object of the present invention is to move the holding body upward with respect to the frame, and the pressing body moves downward toward the holding body to move the thin piece between the holding body and the pressing body. By sandwiching between them, with the thin piece hanging downward from the edge of the support plate, the folding body is moved toward the lower part of the support plate,
The thin piece is folded into two by the folding body, the holding body is swung toward the folding body, and the portion of the thin piece that is folded into two is held between the folding body and the holding body, and the holding body is a frame. With respect to the two thin pieces, the pressing body is moved upwards to release the holding of the thin piece by the holding body and the pressing body, and the folding body is moved laterally. It is an object of the present invention to provide a thin piece folding device capable of transferring a bent portion while being held between a folding body and a holding body.

Means for Solving the Problems In the thin-plate bending apparatus of the present invention, a holding body is movably arranged in a vertical direction on a frame, and a pressing body is movably arranged in an upper and lower direction on the holding body. A supporting plate having a notch formed on the side thereof is provided on the holding body, a folding body is provided on the side of the holding body so as to be movable toward the supporting plate, and the folding body has the above-mentioned upper portion thereof. The holding body is provided so as to be swingable by sandwiching the notch of the support plate.

By the holding body movably arranged in the vertical direction on the work frame moving upward, and the pressing body movably arranged in the upper direction on the holding body moving downward, Hold a thin piece such as a bunch of bags between the holding body and the pressing body so that the thin piece hangs downward from the edge of the supporting plate provided on the holding body, and face the supporting plate on the side of the holding body. The movable folding body is moved toward the lower part of the supporting plate, the thin piece is folded into two by the folding body, and the notch formed on the side of the supporting plate at the upper part of the folding body is sandwiched and rocked. The holding body freely provided is swung toward the folding body, and the portion of the thin piece bent into two is held between the folding body and the holding body.

Further, the holding body is moved downward with respect to the frame, and the pressing body is moved upward to release the holding of the thin piece by the holding body and the pressing body, and the folding body is moved to the side to move the thin piece. The portion folded in two is transferred between the folding body and the holding body while being held.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a frame, and a plurality of pedestals 3, 3 serving as holding bodies are provided in front of the side frames 2 of the frame 1 so as to be vertically movable. At the same time, a plurality of pressing bodies 4, 4 are arranged facing each other on the upper portions of the receiving bases 3, 3 so as to be vertically movable.
As shown in the drawing, a plurality of supporting plates 5 projecting laterally are provided respectively, and between the supporting plates 5, as shown in FIG. Are formed.

As shown in FIG. 2, a plurality of folding bodies 7, 7 are provided on the side of the pedestal 3 so as to be movable toward the support plate 5 at positions corresponding to the gaps 6, and the folding bodies 7, A plurality of holding bodies 8, 8 are provided on the upper part of 7 so as to be capable of swinging with a gap 6 between the support plates 5 interposed therebetween.

Between the side frames 2 and 2 of the frame 1, as shown in FIG. 1, a support body 9 is horizontally mounted, and brackets 10 and 10 are provided on the front surfaces of the support body 9 at both ends. The vertical plate 11 of each bracket 10 is fixed to the front surface of the support body 9 by a plurality of bolts 12, 12 as shown in FIGS. 2 and 3.

Between the side plate 13 of the bracket 10 and the side plate 13 of the bracket 10, as shown in FIG. 1, a support base 14 is horizontally installed, and above the support base 14 is spaced horizontally. A plurality of pedestals 3, 3 are arranged respectively so as to be movable in the vertical direction,
As shown in FIGS. 2 and 3, a holding plate 15 is provided on the top of the pedestal 3, and both ends of the holding plate 15 are fixed to the upper surface of the pedestal 3 by a plurality of screws 16 and 16. .

A plurality of support plates 5 are arranged at intervals in the front part of the cradle 3, and the hanging pieces of the support plate 5 are fixed to the front surface of the cradle 3 by a plurality of bolts 17, 17.

On the upper part of the support base 14, fluid pressure cylinders 18, 18 made of air cylinders are respectively arranged at positions corresponding to the centers of the receiving bases 3, 3 and are formed near the upper end of the piston rod 19 of the fluid pressure cylinder 18. The threaded portion is screwed to the lower center of the pedestal 3, the upper end of the piston rod 19 of the fluid pressure cylinder 18 is fixed to the central lower surface of the pedestal 3 with a nut 20, and the cylinder tube 21 of the fluid pressure cylinder 18 is supported by the support pedestal 14 It is fixed on the upper surface of.

A bolt 22 is screwed to a lower portion of the pedestal 3 near the outer end, and the bolt 22 is fixed to a lower surface of the pedestal 3 near the outer end by a nut 23.

In the lower part near the inner end of the pedestal 3, a guide rod is provided vertically.
24 is provided, the male screw portion formed near the upper end of the guide rod 24 is screwed to the lower portion near the inner end of the pedestal 3, and the upper end of the guide rod 24 is fixed to the lower surface of the pedestal 3 by the nut 25. ing.

Through holes 26, 26 are provided in the support base 14 at positions corresponding to the guide rods 24, 24, respectively.
Bearings 27, 27 are fixed to the upper part of the
A fitting hole 28 communicating with the through hole 26 of the support base 14 is provided therein, and the guide rod 24 is inserted into the through hole 26 of the support base 14 and the fitting hole 28 of the bearing body 27.

As shown in FIG. 2, the side plate 13 of the bracket 10 is provided with a plurality of elongated holes 29, 29, respectively, in the vertical direction, and the support base 14 is provided at both ends thereof with the elongated holes 29, 29 of the side plate 13 interposed therebetween. Bolts 30 and 30 are respectively screwed to each other, and both ends of the support base 14 are fixed to the side plate 13 of the bracket 10 by the bolts 30 and 30.

A bolt 32 is screwed to the horizontal plate 31 of the bracket 10 from below, the bolt 32 is fixed to the lower surface of the horizontal plate 31 by a nut 33, and the upper end of the bolt 32 is brought into contact with the lower surfaces of the support base 14 near both ends. There is.

A connecting plate 34 is provided at the upper center of the support base 14,
A front end of the horizontal portion 35 is bent upward to form a rising portion 36 at 34, and an upper end of the rising portion 36 is bent forward to form an overhanging portion 37. The horizontal portion 35 is fixed to the central upper surface of the support base 14 by a plurality of bolts 38, 38.

A fixed plate 39 is provided above the projecting portion 37 of the connecting plate 34, and a plurality of long holes 40, 40 are provided near one end of the fixed plate 39.
Are provided respectively, a proximity switch 41 is provided near the other end of the fixed plate 39, and the fixed plate 39 is provided with the long holes 40, 40.
Through the plurality of bolts 42, 4 on the upper surface of the overhanging portion 37 of the connecting plate 34.
Fixed by 2.

Brackets 43, 43 are respectively arranged at the front portions of the side frames 2, 2 of the frame 1, and a support box 45 is horizontally installed above the horizontal plates 44, 44 of the brackets 43, 43. A lid 46 is provided on the upper portion of 45, and a vertical plate 47 of the bracket 43 is fixed to the front surface of the side frame 2 by a plurality of bolts 48, 48.

In the lower part of the support box 45, a plurality of pressing bodies 4, 4 are arranged at intervals in the horizontal direction so as to be movable in the vertical direction, and the upper part of the bottom plate of the supporting box 45 corresponds to the center of the pressing bodies 4, 4. Fluid pressure cylinder 4
9, 49 are respectively arranged, and the male screw portion formed near the lower end of the piston rod 50 of the fluid pressure cylinder 49 is screwed to the central upper portion of the pressing body 4, and the piston rod of the fluid pressure cylinder 49 is provided.
The lower end of 50 is fixed to the central upper surface of the pressing body 4 by a nut 51, and the lower end of the cylinder tube 52 of the fluid pressure cylinder 49 is fixed to the upper surface of the bottom plate of the support box 45.

A bolt 53 is screwed onto the upper portion of the pressing body 4 near the outer end,
The bolt 53 is fixed to the upper surface of the pressing body 4 near the outer end by a nut 54.

A guide rod 55 is arranged in the vertical direction above the inner end of the pressing body 4, and a male screw portion formed near the lower end of the guide rod 55 is screwed to the upper portion near the inner end of the pressing body 4 to guide the guide. The lower end of the rod 55 is fixed to the lower surface of the pressing body 4 by a nut 56.

Through holes 57 and 57 are provided in the bottom plate of the support box 45 at positions corresponding to the guide rods 55 and 55, and bearing bodies 58 and 58 are fixed above the through holes 57 and 57 of the bottom plate of the support box 45, respectively. The bearing body 58 is provided with a fitting hole 59 communicating with the through hole 57 of the support box 45, and the guide rod 55 is inserted through the through hole 57 of the support box 45 and the fitting hole 59 of the bearing body 58. There is.

A movable support body 60 is movably arranged horizontally in a lateral direction between the support base 14 and the support box 45, and a position corresponding to the gap 6 between the support plates 5 is provided under the movable support body 60. A plurality of fixing members 61 are fixed to each of the fixing members 61, and a holder plate protruding toward the support plate 5 is provided on the lower surface of the fixing member 61.
62 is fixed, and the folding body 7 is provided on the upper part near the tip of the holder plate 62.
Is fixed to the upper surface of the above from below by a plurality of screws 63, 63.

A projecting plate 64 projecting toward the connecting plate 34 is fixed to the lower central part of the movable support 60.

A plurality of rotating shafts 65, 65 are rotatably arranged at intervals above the holder plate 62 in the horizontal direction.
A hanging piece 66 formed on the lower surface of the holding body 8 is fixed to the rotating shaft 65 at a position corresponding to the upper portion of the holder plate 62, and a swinging parallel to a part of the holding body 8 is formed at the end of the rotating shaft 65. The moving arm 67 is fixed.

A holder plate is provided on the upper part of the movable support 60 near both ends.
A mounting plate 68 that protrudes in the same direction as 62 is fixed, a fluid pressure cylinder 69 is disposed above the mounting plate 68, and the lower end of the piston rod 70 of the fluid pressure cylinder 69 is the end portion of the swing arm 67. The cylinder tube 71 of the fluid pressure cylinder 69 is fixed to the upper surface of the mounting plate 68.

The pedestal 3 is positioned below the folding body 7 so that the folding body 7 does not collide with the supporting plate 5 of the cradle 3 when the movable support body 60 passes between the cradle 3 and the pressing body 4. Is located in.

A conveyor 72 is arranged below the holder plate 62.

 Next, the operation of this embodiment will be described.

First, when the movable supporting body 60 is moved toward the inside of the frame 1 from the position corresponding to the side between the pedestal 3 and the pressing body 4 in FIG. 2, the folding body 7 and the holding body 8 move. After passing between the pedestal 3 and the pressing body 4 together with 60 and moving to the inside of the frame 1, the fluid pressure cylinder 69 operates and the piston rod 70 of the fluid pressure cylinder 69 moves downward.

The downward movement of the piston rod 70 of the fluid pressure cylinder 69 causes the swing arm 67 to swing clockwise as the piston rod 70 moves downward, and at the same time, the rotary shaft 65 swings the swing arm 67. It rotates in the clockwise direction with
Swings clockwise with the rotating shaft 65 toward the holder plate 62, and as shown in FIG. 4, holds the end of the bag bundle 73, which is a thin piece, between the folding body 7 and the holding body 8.

Next, move the movable support 60 from the inside of the frame 1 to the cradle 3
By moving to the side between the pressing body 4 and the pressing body 4, the movable holding body 60 moves the bag bundle 73 between the folding body 7 and the holding body 8.
After moving between the pedestal 3 and the pressing body 4 while holding the end portion of the fluid, the fluid pressure cylinder 49 operates and the piston rod 50 of the fluid pressure cylinder 49 moves downward. The pressing body 4 moves downward as the piston rod 50 moves downward, and at the same time, the guide rod 55 moves downward while engaging with the bearing body 58 as the pressing body 4 descends. After that, the fluid pressure cylinder 18 is actuated, the piston rod 19 of the fluid pressure cylinder 18 moves upward, and the pedestal 3 rises as the piston rod 19 moves upward. As the pedestal 3 moves up, it moves upward while engaging with the bearing body 27.

Then, as shown in FIG. 5, the bag bundle 73 is clamped between the pressing plate 15 on the upper portion of the receiving table 3 and the pressing body 4.

After that, the fluid pressure cylinder 69 operates and the fluid pressure cylinder 69
The piston rod 70 of 69 moves upward, the swing arm 67 swings counterclockwise as the piston rod 70 moves upward, and at the same time, the rotary shaft 65 swings the swing arm 67. Along with that, the holding body 8 rotates counterclockwise and the holding body 8 rotates.
With this, the bag bundle 73 is rotated in the counterclockwise direction to release the holding by the folding body 7 and the holding body 8 at the end of the bag bundle 73, and then retracts, and as shown in FIG. It hangs downward from the edge.

Next, by moving the movable holding body 60 toward the pressing body 4, the folding body 7 moves together with the movable support body 60 toward the lower part of the support plate 5, and as shown in FIG. The folding body 7 is folded in two from the center toward the lower part of the support plate 5.

Further, the proximity switch 41 detects the projecting plate 64 of the movable support body 60, the movement of the movable support body 60 is stopped by the proximity switch 41, and the folding body 7 does not collide with the cradle 3.

Then, the fluid pressure cylinder 69 is activated and the fluid pressure cylinder 69
The piston rod 70 of 69 moves downward, the swing arm 67 swings clockwise as the piston rod 70 moves downward, and at the same time, the rotary shaft 65 swings with the swing arm 67. 6 to rotate clockwise, the holding body 8 swings clockwise with the rotating shaft 65 toward the holder plate 62, as shown in FIG. 6, and as shown in FIG. A portion corresponding to the gap 6 between the support plates 5 that are folded in two is held between the folding body 7 and the holding body 8.

After that, the fluid pressure cylinder 49 operates and the fluid pressure cylinder 49
The piston rod 50 of 49 moves upward, the pressing body 4 rises as the piston rod 50 moves upward, and at the same time, the guide rod 55 engages with the bearing body 58 as the pressing body 4 rises. While moving upwards.

Then, the fluid pressure cylinder 18 is activated,
The piston rod 19 of 18 moves downward, and the pedestal 3
Is lowered as the piston rod 19 moves downward, and at the same time, the guide rod 24 is lowered as the pedestal 3 is lowered.
It moves downward while engaging with 27, and as shown in FIG. 8, the holding plate 15 and the pressing body 4 on the upper part of the receiving base 3 of the bag bundle 73 releases the holding.

Next, the movable support 60 is moved toward the side between the pedestal 3 and the pressing body 4, so that the movable support 60 is folded into two bag bundles as shown in FIG. The 73 is moved while being held between the folding body 7 and the holding body 8.

After that, the fluid pressure cylinder 69 operates and the fluid pressure cylinder 69
The piston rod 70 of 69 moves upward, the swing arm 67 swings counterclockwise as the piston rod 70 moves upward, and at the same time, the rotary shaft 65 swings the swing arm 67. Along with that, the holding body 8 rotates counterclockwise and the holding body 8 rotates.
Together with the bag bundle, as shown in FIG. 9, it rotates counterclockwise.
The holding by the folding body 7 and the holding body 8 at the portion folded in two of 73 is released, and the bag bundle 73 folded in two drops onto the upper part of the conveyor 72, and the two conveyors 72 The bag bundle 73 bent to be conveyed to the next step.

It is also possible to provide a support plate on the upper part of the pedestal and form a cutout portion that opens laterally in the support plate.

EFFECTS OF THE INVENTION As described above, according to the thin film bending apparatus of the present invention, the holding body moves upward with respect to the frame, and the pressing body moves downward toward the holding body. The thin piece can be securely held between the holding body and the pressing body, and at the same time, the thin piece hangs downward from the edge of the supporting plate.In this state, the folding body moves toward the lower part of the supporting plate. The thin piece can be folded into two by the support plate and the folding body only by moving, and the holding body swings toward the folding body, which corresponds to the cutout portion folded into two of the thin pieces. The place can be held between the folding body and the holding body.

If the holding body is moved downward with respect to the frame and the pressing body is moved upward, the holding by the thin piece holding body and the pressing body can be released. By moving towards the flakes 2
It is possible to transfer the folded portion to the next position while being held between the folding body and the holding body.

[Brief description of drawings]

FIG. 1 is a front view of a thin piece bending apparatus according to an embodiment of the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is a plan view of essential parts of FIG. 1, and FIG. FIG. 5 is a right side view showing a state in which the end portion of the bag bundle is held by a folding body and a holding body, FIG. 5 is a right side view in which a bag bundle receiving base and a pressing body are held, and FIG. 6 is a bag bundle. Fig. 7 is a right side view showing the state of being held by the folding body and the holding body at the bent portion of Fig. 7, Fig. 7 is a plan view of the essential parts of Fig. 6, and Fig. 8 is the holding state of the bag bundle by the holding body. Fig. 9 is a right side view showing a state in which the bag is released, and Fig. 9 is a right side view showing a state in which the holding body by the folding body and the holding body of the bag bundle is released. 1 ... frame, 2 ... side frame, 3 ... stand, 4 ... pressing body, 5 ... support plate, 6 ... gap, 7 ... folding body, 8 ...
Holding body, 9 …… Supporting body, 10 …… Bracket, 11 …… Vertical plate, 12 …… Bolt, 13 …… Side plate, 14 …… Supporting base, 15 ……
Holding plate, 16 ... Screw, 17 ... Bolt, 18 ... Fluid cylinder, 19 ... Piston rod, 20 ... Nut, 21 ... Cylinder tube, 22 ... Bolt, 23 ... Nut, 24 ...
Guide rod, 25 …… nut, 26 …… through hole, 27 …… bearing body, 28 …… fitting hole, 29 …… long hole, 30 …… bolt, 31…
… Horizontal plate, 32 …… Bolt, 33 …… Nut, 34 …… Coupling plate, 35 …… Horizontal part, 36 …… Rise part, 37 …… Overhang part, 38
...... Bolt, 39 ...... Fixing plate, 40 ...... Slot, 41 ......
Proximity switch, 42 ... Bolt, 43 ... Bracket, 44 ...
… Horizontal plate, 45 …… Support box, 46 …… Lid body, 47 …… Vertical plate, 48 …… Bolt, 49 …… Fluid pressure cylinder, 50 …… Piston rod, 51 …… Nut, 52 …… Cylinder tube , 53 …… Bolts, 54 …… Nuts, 55 …… Guide rods, 56 …… Nuts, 57 …… Through holes, 58 …… Bearing bodies, 59 ……
Mating hole, 60 ... Movable support, 61 ... Fixed member, 62 ... Holder plate, 63 ... Screw, 64 ... Projection plate, 65 ... Rotation axis, 66 ... Hanging piece, 67 ... Shake Moving arm, 68 …… Mounting plate, 69 …… Fluid cylinder, 70 …… Piston rod, 71
…… Cylinder tube, 72 …… Transport conveyor, 73 …… Bag bundle.

Claims (1)

[Claims] 1. A holding body is movably arranged in a vertical direction on a frame, and a pressing body is movably arranged in an upper and lower direction on the holding body, and a cutout portion is laterally provided on the holding body. A support plate formed with, and a folding body is provided on the side of the holding body so as to be movable toward the support plate, and the folding body has a holding body sandwiching a notch portion of the support plate at an upper portion thereof. A thin piece bending device characterized by being swingable.