JPH0597303A - Load separating and carrying out device for carrier - Google Patents

Abstract

PURPOSE:To carry printed matters onto a carrying-out conveyor in the state stacked in an imbricate form at a fixed pitch by running a belt with bar having bar bodies protruded at an interval equal to the pitch of a gripper at the same speed as a carrier while holding a determined positional relation. CONSTITUTION:The lower end of a printed matter 5 held by the gripper 2 of a carrier B first makes contact with the vicinity of the front of a belt with bar 6, and by successively advancing it, the rear end part 5b makes contact with the front surface side of a bar body 6a. The gripper 2 is released by the load separating mechanism 4 of the carrier at this timing, and the folding mouth part 5a of the printed matter 5 falls by its dead weight onto the printed matter previously fallen, and the imbricate stack of the printed matters 5 having the space of a folding mouth part 5b equal to the pitch of the grippers 2 is formed on the belt with bar 6. The printed matters 5 fallen by own weight are sucked onto a sucking plate 7a by the pressure reduction in an air box 7, and both the sides are further pressed by the plate body 8a of a posture correcting device 8 and regularly arranged on a carrying-out conveyor C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an unloading and unloading device for a carrier, in which a printed matter conveyed by a center grip type carrier from a rotary press or the like is taken over from the carrier and at a constant and extremely accurate pitch. The present invention relates to a carrier unloading and unloading device that can be stacked on a conveyor in a tile shape and carried out.

[0002]

2. Description of the Related Art In a conventional carrier for carrying printed matter such as newspapers, a belt conveyor which runs at substantially the same speed as the carrier is arranged below the carrier in parallel with the carrier and the carrier gripper is opened sequentially. The printed matter is dropped onto the conveyor to form a tile-like stack of the printed matter on the conveyor, and in this state, the printed matter is carried out to the next processing step such as a counter stacker or an inserter. However, when the weight of printed matter such as newspapers is lowered from the carrier onto the belt conveyor, the inertia of the printed matter moving at high speed and friction with the belt conveyor cause the belt conveyor to move closer to the carrier as much as possible. The posture of the printed matter on the conveyor is disturbed, and the distance between the printed matter stacked in a tile shape is greatly changed, which causes various inconveniences in the next processing step.

On the other hand, in order to solve the above-mentioned problems in the conventional carrier unloading / unloading apparatus, a carrier unloading / unloading apparatus having a structure as shown in FIG. (Kaisho 64-81754, etc.). That is, the clamp 22 is provided below the carrier 21 having the gripper 20.
The conveyer 23 for unloading is arranged to face each other, and the lower end portion of the printed matter 24 which is gripped by the fixed claw 20a and the movable claw 20b of the gripper 20 and conveyed in the arrow direction is moved in the arrow direction via the slide guide 25. The printed matter 24 was stacked in a tile shape on the conveyor 23 at a constant pitch by inserting the movable piece 22 into the opening of the moving clamp 22 and timing the closing of the opening of the clamp 22 and the opening of the gripper 20. In this state, it is carried out to the next processing step.

[0004]

The carrier unloading and unloading device for a carrier shown in FIG. 7 can carry out the printed matter 24 as a tile-like stack at an extremely accurate pitch, and has an excellent practical utility. .. However, the carry-out conveyor 23
In addition, since the clamp 22 is required, its structure becomes extremely complicated, and there is a drawback that the manufacturing cost cannot be reduced. Further, in order to eliminate the unloading mistake of the printed matter, it is necessary to strictly regulate the operation timing between the carrier 21 and the carry-out conveyor 23, which causes a problem that the operation management of the apparatus is remarkably troublesome. Furthermore, the conveyor 23 for transportation
Since the rear end of the printed matter 24 is held by the clamp 22 of the printed matter 24, the printed matter 24 is easily damaged and the clamp 22
If the printed matter 24 is clamped before the end of the printed matter 24 is completely inserted into the inner part of the sheet, there is a problem that the pitch is misaligned.

The present invention is intended to solve the above-mentioned problems in this type of carrier unloading and unloading device, and the printed matter taken over from the carrier can be provided at a constant pitch with a device having a simple structure. Accurately stack in a tile shape,
It is intended to provide a carrier unloading and unloading device that can be efficiently carried out to the next processing step.

[0006]

A carrier B having grippers 2 at a constant pitch Pa and provided with an unloading mechanism 4, and a conveyor for carrying out, which is arranged below a straight portion of the carrier B and in parallel therewith. In the carrier unloading and unloading device A consisting of C and the carrying conveyor C, a crosspiece belt 6 in which a crosspiece body 6a is projected by a pitch substantially equal to the pitch Pa of the gripper 2; 6 and an air box 7 in which a suction plate 7a is positioned at substantially the same height as the belt 6, and the belt 6 with crosspieces has the same speed as the carrier B and maintains a predetermined positional relationship with the carrier B. It is a basic configuration of the invention to drive the vehicle while running.

[0007]

Function: The printed matter 5 held by the gripper 2 of the carrier B
First, the lower end portion 5b of the rear end portion 5b first comes into contact with the vicinity of the front of the belt 6 with crosspieces, and further advances, whereby
Comes into contact with the front side of the crosspiece 6a. Lower end 5b on crosspiece 6a
When the sheet comes into contact with the carrier B, the gripper 2 is opened by the unloading mechanism 4 of the carrier B at that timing, and the folded portion 5 of the printed matter 5 is released.
The “a” falls on the printed matter 5 which has fallen earlier due to its own weight. As a result, on the belt 6 with crosspieces, a tile-shaped stack of the prints 5 having the same pitch of the grippers 2 (that is, the pitch of the crosspieces 6a) and the gap of the folding portions 5b is formed, and the prints are arranged in the same direction as the carrier B. They are transported at the same speed. Further, the printed matter 5 that has dropped by its own weight is sucked onto the suction plate 7a due to the reduced pressure in the air box 7, and slides along the suction plate 7a. Further, the printed matter 5 whose orientation is disturbed when dropped is regularly arranged on the carry-out conveyor C by pressing the both sides of the printed matter 5 by the plate bodies 8a of the orientation correction device 8.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view of a carrier unloading and unloading device according to the present invention, and FIG. 2 is a side schematic view thereof. 1 and 2, A is a carrier unloading and unloading device, B is a carrier, C is a unloading conveyor, 1 is a guide rail, 2 is a gripper, 3 is a link, 4 is an unloading mechanism, and 4a is an unloading mechanism. The present invention includes a loading cylinder, 4b an unloading cam, 4c a cam surface, 5 a printed matter such as a newspaper, 6 a belt with a crosspiece, 7 an air box, 8 a posture correcting device for printed matter, and 9 a roller. The carrier unloading and unloading device A according to (1) is composed of the carrier B and a unloading conveyor C disposed below the carrier B.

As shown in FIGS. 3 to 5, the carrier B has a guide rail 1 having a straight traveling portion, a link 3 traveling in the guide rail 1, and a gripper connected through the link 3 at a constant pitch. 2 and the unloading mechanism 4 and the like. The gripper 2 includes a fixed body 2a,
A movable body 2b whose upper end is swingably supported by a fixed body 2a.
And an elastic body 2c interposed between the fixed body 2a and the movable body 2b.
And a link body 3a that is formed of an operating roller 2d provided on the movable body 2b side, a support shaft 2e that connects the fixed body 2a and the movable body 2b, and that forms a link 3 on top of the fixed body 2a. Is fixed.

The fixed point S on the movable body 2b side of the elastic body 2c is located outside the axis O of the support shaft 2e in a front view, and the support shaft 2e and the spring 2c constitute a so-called toggle mechanism. Has been done. As a result, by moving the fixed point S of the elastic body 2c upward by an external force, the movable body 2b is moved in the direction of abutting on the fixed body 2a. Also,
When the axis of the elastic body 2c comes above the axis O of the support shaft 2e, the jaw of the movable body 2b is held in contact with the jaw of the fixed body 2a by the elastic force of the elastic body 2c, Gripper 2
Is in a gripped state (closed state). On the contrary, when the fixed point S is moved downward by an external force, the movable body 2b is moved in a direction away from the fixed body 2a, and the axis of the elastic body 2c comes below the axis O of the support shaft 2e. The elastic force (tensile stress) of the elastic body 2c holds the gripper 2 in the released state (open position).

As shown in FIGS. 3 and 4, in the link 3, the link body 3a to which each gripper 2 is fixed is interconnected at a constant pitch Pa by a connecting rod which also serves as a support shaft 3c of the running link roller 3b. It is formed by means of two rollers 3b for running and one guide roller 3d for horizontally supporting the roller 3b so that it can travel freely inside the guide rail 1. Further, the link 3 is driven and driven at a predetermined speed in the arrow direction by a driving device (not shown). In this embodiment, the grippers 2 are connected at a pitch Pa of about 76 mm, and a maximum _of 75,000 sheets / H.
Has a (approximately _5. 7Km / H) designed for transporting the printed products 5.

The unloading cam plate 4b driven by the unloading cylinder 4a has an inclined cam surface 4 as shown in FIG.
c, the movable roller 2b is pressed downward by the operation roller 2d of the gripper 2 contacting the cam surface 4c, and the gripper 2 is opened. The operating roller 2d of the gripper 2 can be provided on either one side or both sides of the gripper 2. Further, the unloading cylinder 4a and the unloading cam plate 4b forming the unloading mechanism 4 are also
It can be provided on one side or both sides of the guide rail 1. As a result, for example, the operation rollers 2d are alternately attached to one side of the plurality of connected grippers 2, and the unloading mechanism 4 is provided on both sides of the guide rail 1 to control the operation of the drive cylinder 4a by switching. It is also possible to unload the printed matter 5 for each part of the printed matter. Although the carrier B having the structure shown in FIGS. 3 to 5 is used in this embodiment, the carrier B having any structure may be used as long as it is a center grip type carrier B having grippers at a constant pitch. Of course, it is also good.

On the other hand, the carry-out conveyor C is provided with two endless belts 6 which are arranged at regular intervals.
And a suction box 7 having a narrow width and arranged between the belts 6 having both crosspieces, a print posture adjusting device 8 and a belt roller 9. As shown in FIG. 6, the belt 6 with crosspieces has crosspieces 6 having a trapezoidal cross section at a constant pitch Pb.
a is integrally formed on the belt. In this embodiment, the thickness is about 5 to 10 mm and the width is about 100 to 150 mm.
Approximately 4-6mm in height and approximately 4 in width on the synthetic resin belt of
The crosspiece 6a having a size of 6 mm is integrally formed with a pitch Pb of 76.2 mm _.
An engaging groove 6b that meshes with drive teeth on the outer peripheral surface of the driving roller 9a is formed on the back surface side of the.

The air box 7 is a short box having a quadrangular cross section, and the upper wall thereof is a suction plate 7a having a large number of small holes formed therein, and is located at substantially the same height as the belts 6 with crosspieces on both sides. It is installed in. The inside of the air box 7 is constantly decompressed by a vacuum pump (not shown), so that the printed matter 5 that has fallen is sucked and prevented from jumping up. In this embodiment, two belts 6 with crosspieces are used.
Although the carry-out conveyor C is formed by disposing the air box 7 between them, the carry-out conveyor C may be provided by disposing the short air boxes 7 on both sides of one wide belt 6 with a crosspiece. ..

The printed matter posture correction device 8 is shown in FIGS.
As shown in FIG. 5, it is composed of a plate body 8a, a swing drive device 8b and the like. The plate 8a is vertically arranged outside the belts 6 and 6 and is supported so as to be reciprocally swingable in a direction perpendicular to the traveling direction of the belt 6 with the crosspieces. That is,
The plate 8a is reciprocally swingable in the arrow direction with a constant width L via a support pin 8d implanted at an eccentric position of the drive pulley 8c and a support member 8e fixed thereto. The positions of the printed matter 5 dropped on the belt 6 with crosspieces are aligned in the lateral direction to correct the distorted posture of the printed matter 5.

The carrier B holds the folded portion 5a of the gripper 2 at a predetermined speed and the unloading and unloading device A is held.
The printed matter 5 that has been conveyed up to the first has its trailing end portion (lower end portion) 5b arranged below the carrier B and travels in the same direction at the same speed as that of the carrier B for carrying out the crosspiece belt 6b.
Touch on. As shown in FIG. 1, the belt 6 with the crosspiece and the carrier gripper 2 are such that the rear end portion 5b of the printed matter 5 contacts the front side of the crosspiece 6a in the lower portion of the unloading mechanism 4. Since they are operated at a constant speed in a mutual positional relationship, the rear end portion 5b of each printed matter 5 advances in the direction of the arrow while sequentially contacting the front surface side of the crosspiece 6a.

On the other hand, when the rear end portion 5b of the printed matter 5 is in contact with the belt 6 with crosspieces, the operating roller 2d of the gripper 2 is continuously in contact with the cam surface 4c of the unloading cam plate 4b. As a result, the gripper 2 is opened as described above, and the folded portion 5a of the printed matter 5 is released from the gripper 2.

The folded portion 5a of the released printed matter 5 falls onto the belt 6 with crosspieces due to its own weight, and is sequentially stacked on the printed matter 5 that has fallen earlier in a tile shape. Further, the central portion of the printed matter 5 is sucked onto the suction plate 7a by the decompression of the air box 7, thereby preventing the printed matter 5 from jumping up and the like, and the disturbance of the lateral posture is prevented by the printed matter posture correcting device 8. Will be fixed. Further, even if a slight slip occurs when the printed matter 5 falls, the relative movement of the printed matter 5 is stopped because the rear end portion 5b is engaged with the front surface side of the crosspiece 6a. As a result, the printed matter 5 is attached to the rear end portion 5 by the crosspiece 6a.
In the state where b is held, the tiles are piled up with a constant pitch Pb and conveyed in the arrow direction.

[0019]

According to the present invention, below the straight line portion of the carrier B, the belt 6 with crosspieces is provided which runs in the same direction as the carrier B at the same speed and while maintaining a predetermined mutual positional relationship. The distance between the crosspieces 6a of the belt 6 with crosspieces is regulated to be substantially the same as the pitch Pa of the grippers 2 of the carrier B. Therefore, the lower end portion 5b of the printed matter 5 gripped by the gripper 2 comes into contact with the lower belt 6 with a crosspiece and then contacts the front side of the crosspiece 6a, and the rear end 5b is held by the crosspiece 6a. Under this condition, the gripper 2 is opened, and the folded portion 5a of the gripper 2 is lowered downward by its own weight. As a result, on the belt 6 with crosspieces, the printed matter 5 having the intervals of the folding portions 5a substantially the same as the pitch Pa of the gripper 2 is obtained.
The stack of printed matter 5 is carried out while the rear end portion 5b is held by the crosspiece 6a without any posture disorder. Further, in the present invention, since the short air box 7 is arranged in parallel to the belt 6 with crosspieces, the lower surface side of the printed matter 5 that has dropped by its own weight due to the opening of the gripper 2 is sucked to the suction plate 7a side,
The printed matter 5 is prevented from jumping up at the time of descending, and the lateral position of the printed matter 5 is corrected by the posture correcting device 8 so that the printed matter 5 is regularly arranged on the carry-out conveyor C.
Thereby, the disturbance of the posture of the printed matter 5 is more effectively prevented. Further, in the present invention, since the carry-out conveyor C is formed of the belt 6 with crosspieces and the extremely short air box 7, the structure thereof is remarkably simplified, and the manufacturing cost of the carrier unloading and carrying-out apparatus A is significantly reduced. Is possible. The present invention has excellent practical utility as described above.

[Brief description of drawings]

FIG. 1 is a schematic front view of an unloading and carrying-out device for carriers according to the present invention.

FIG. 2 is a schematic side view of a carrier unloading and unloading device.

FIG. 3 is a perspective view of a carrier gripper.

FIG. 4 is a front view of a carrier in which a part of the guide rail is broken.

FIG. 5 is an explanatory diagram of the unloading operation of the gripper.

FIG. 6 is a schematic vertical cross-sectional view of a belt with a carry-out bar.

FIG. 7 is a schematic front view showing an example of a conventional carrier unloading and unloading device.

[Explanation of symbols]

A carrier unloading and unloading device 4c cam surface B carrier 5 printed matter C unloading conveyor 5a folding part 1 guide rail 5b rear end 2 gripper Pa pitch 2a fixed body Pb pitch 2b movable body O axis core 2c elastic body S fixed point 2d Roller for operation 6 Belt with crosspiece 2e Support shaft 6a Crosspiece 3 link 6b Engagement groove 3a Link body 7 Air box 3b Traveling link roller 7a Suction plate 3c Roller spindle 8 Print posture correction device 3d Guide link roller 8a Plate 4 Unloading mechanism 9 Roller 4a Cylinder 4b Unloading cam plate

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical indication location B65H 29/04 9147-3F 29/24 C 9147-3F (72) Inventor Kaoru Fujisawa Kyoto City, Kyoto Prefecture No. 201 Domus Katsura, 67 Katsura Inariyama-cho, Nishikyo-ku (72) Inventor Bunki Murakami 3-20-4 Nishi-shimbashi, Minato-ku, Tokyo Inside NEC Engineering Co., Ltd. (72) Inventor Masao Nakamura Kawasaki, Kanagawa 2-1329 Sannomachi, Kamimaruko, Nakahara-ku, Kyoritsu Denshi Co., Ltd. (72) Inventor, Ryoichi Higuchi 2-1329, Sannocho, Kamiomaruko, Nakahara-ku, Kawasaki, Kanagawa Kyoritsu Denshi, Ltd.

Claims (4)

[Claims] 1. A gripper (2) is provided with a constant pitch (Pa).
And a carrier (B) having an unloading mechanism (4),
In a carrier unloading and unloading device (A) comprising a carrier (B) and a carry-out conveyor (C) arranged in parallel with the straight part of the carrier (B), the carry-out conveyor (C) is replaced by the gripper. A belt with a crosspiece (6) having projecting crosspieces (6a) at a pitch substantially equal to the pitch (Pa) of (2); and a belt with crosspieces (6) arranged in parallel with the crosspiece belt (6).
Is formed from an air box (7) in which a suction plate (7a) is positioned at substantially the same height as that of the carrier (B) while maintaining the belt (6) at the same speed and a predetermined positional relationship. An unloading and unloading device for carriers, which is characterized by running. 2. A printed matter posture correcting device (8) comprising plate bodies (8a) supported on both sides of the carry-out conveyor (C) so as to reciprocally swing in a direction perpendicular to the traveling direction of the conveyor (C). ) Is provided, the carrier unloading and unloading device according to claim 1. 3. The carrier unloading and unloading device according to claim 1, wherein belts (6) with crosspieces are arranged in parallel on both sides of the air box (7). 4. The carrier unloading and unloading device according to claim 1, wherein air boxes (7) are arranged in parallel on both sides of the belt with crosspieces (6).