JP2882766B2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transporting apparatus used for transporting articles mainly including books, and more particularly to a transporting apparatus which can quickly and smoothly remove defective products from a manufacturing process.

[0002]

2. Description of the Related Art Generally, in a manufacturing process of articles and the like, processing machines and the like are connected by a transfer device in order to perform work efficiently. For example, in the bookbinding process, a binding machine that bundles signatures in the order of pages, a binder that cuts the spine portion of the signature and glues the cover, a stacker that stacks it into 5 to 6 books,
A three-side cutting machine that cuts the fore edge, and one completed book
A bookbinding process is constructed by connecting a binding machine or the like that piles up and binds up to 0 to 15 books by a transport device in series.

FIG. 10 is a schematic plan view showing an example of a bookbinding process. In FIG. 10, A is a collating machine, B is a binder, C is a stacker, D is a three-way cutting machine, E is a binding machine, and these are transporting devices F1 to F4 such as a belt conveyor.
Are connected by In particular, in this kind of bookbinding process, the number of signatures that are too many or too small, such as extra pages or missing pages, and irregular pages due to poor cutting are eliminated as defective products,
For example, a sensor S such as a weight detector or a position detector is provided on the transport device F2, and a part of the transport device F2 is configured as a defective product elimination unit R that operates by a detection signal from the sensor S.

As shown in FIG. 11, the conveying device F2 comprises a pair of conveyors R1 and R2 attached to a frame to constitute a defective product rejecting section R. When a defective product is detected, the conveyors R1 and R2 are connected at one end. Are rotated in opposite directions with respect to a fulcrum. And the conveyors R1, R
Defective products are slid down from between the two so that they can be eliminated from the process.

[0005]

However, according to the above-mentioned conventional conveying apparatus, if the feed pitch of the conveyed articles is shortened, the conveyed articles immediately after the conveyed articles R1 and R2 are in the process of being returned when a defective product is removed. It may be caught in between or jumped up on the conveyors R1 and R2.
For this reason, it is necessary to increase the feed pitch of the conveyed articles, for example, when the conveyed articles R1 and R2 are completely restored at the time of removing defective products, and then the next conveyed article is transferred onto the previous conveyor R1. Could not be transported.

On the other hand, in recent years, since the speed of a processing machine such as a binder has been increasing, it has become necessary to sort articles to another processing machine in accordance with the high-speed processing machine. However, there is no transport device capable of appropriately diverting articles conveyed at a high speed, and the actual situation is that it is difficult to cope with the problem.

Therefore, according to the present invention, in a bookbinding process or the like, a defective product can be quickly and smoothly removed from the process, and the product can be used as a sorting device for sorting the products in the process to each processing machine. The main purpose is to provide the device.

[0008]

In order to achieve the above object, the present invention comprises a base conveyor and a skew conveyor provided obliquely to the base conveyor, and the skew conveyors face each other in the vertical direction. The lower traveling unit has an endless belt that runs in opposite directions to each other, and the lower traveling unit has a movable pulley that can move up and down on one end and the endless belt is hung on. It is attached to the machine frame in a state close to the side edge of the base conveyor, and the upper running portion is provided on the machine frame so as to be able to move up and down so that the distance between the upper running portion and the lower running portion is variable. The present invention is to provide a transfer device that performs the following.

[0009]

According to the present invention, an article such as a book being manufactured is conveyed in a predetermined direction through a base conveyor. At this time, when a part of the conveyed article is protruded from the side edge of the base conveyor and conveyed, the protruding part of the conveyed article is clamped at one end of the lower traveling part and the upper traveling part when the movable pulley is raised, and between the two parts. The conveyed goods on the base conveyor are drawn in.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of the transport device according to the present invention. In the figure, 1 is a base conveyor, 2 is a skew conveyor, and each is integrally attached to the machine frame 3.

The base conveyor 1 is a belt conveyor using a flat belt 12 made of rubber, for example.
Are several rollers 13a rotatably mounted on the machine frame 3,
13b,. One of the rollers 13a is connected to a motor 15 attached to the machine frame 3 via a toothed belt 16 for driving with a pulley 14 attached to one end.

On the other hand, the skew conveyor 2 is composed of a lower traveling section 4 and an upper traveling section 5 which are vertically opposed to each other, and is provided obliquely with respect to the base conveyor 1. The lower traveling unit 4 and the upper traveling unit 5 each have a plurality of endless belts 41 and 51 that run in opposite directions to each other, so that articles such as books can be conveyed therebetween.

The lower traveling section 4 has guide rails 42 made of square members such as steel plates arranged at predetermined intervals and fixed to the machine frame 3, and pulleys 43 a and 43 b are respectively rotated at both longitudinal ends of the guide rails 42. A movable pulley, which will be described later, is provided at several places on the base conveyor 1 side, and the endless belt 4 is individually stretched along each guide rail 42.
1 is supported by pulleys 43a and 43b and a movable pulley.

In the lower traveling section 4, the guide rail 4
2, a required number of belt wheels 44 are provided coaxially below the guide rails 42 and the endless belts 41 are respectively hung on the belt wheels 44.
The tension roller 45 is provided between the endless belt 41 and the endless belt 41.
Is given a constant tension. The belt wheel 44 is fixed to a rotating shaft 46 provided on a part of the machine frame 3, and a belt wheel 47 for power transmission and a gear 48 are fixed to both ends of the rotating shaft 46. The tension roller 45 is rotatably mounted on a support shaft 49 laid in parallel on a part of the machine frame 3, and has a guide groove 4 on its outer peripheral surface into which the endless belt 41 is fitted.
5a are formed.

On the other hand, the upper traveling section 5 is provided with a guide rail 52 made of a square material such as a steel plate.
2 are fixed at equal intervals between the side plates 5a, and pulleys 53a and 53b are rotatably provided at both ends in the longitudinal direction of the guide rail 52, and endless belts 51 individually stretched along the respective guide rails 52 are provided with pulleys. It is configured to be supported by 53a and 53b.

In the upper traveling section 5, the guide rail 5
2, a required number of belt wheels 54 are coaxially provided corresponding to the guide rails 52, and the endless belts 51 are respectively hung on the belt wheels 54.
The tension roller 55 is provided between the endless belt 51 and the endless belt 51.
Is given a constant tension. The belt wheel 54 is a side plate 5a.
, A power transmission belt wheel 57 is fixed to one end of the rotation shaft 56. Also,
The tension roller 55 is rotatably attached to a support shaft 59 which is installed in parallel with the side plate 5a, and has a guide groove 55a on its outer peripheral surface into which the endless belt 51 is fitted.

Here, as the endless belts 41 and 51, for example, rubber round belts having a circular cross section are used. As means for transmitting power to the lower traveling unit 4 and the upper traveling unit 5, a toothed belt 62 is hung on a belt wheel 61 attached to a drive shaft of a motor 60 and a belt wheel 47 attached to one end of a rotating shaft 46. A gear 48 attached to the other end of the rotating shaft 46 meshes with a gear 64 attached to one end of the other rotating shaft 63, and further attached to a belt wheel 65 attached to the other end of the rotating shaft 63 and a rotating shaft 56. The connected belt wheel 57 is linked by a toothed belt 66. For this reason, the endless belts 41 and 51 of the lower traveling unit 4 and the upper traveling unit 5 can be synchronized and interlocked with each other, so that mutual speed adjustment is not required, and especially when a book is conveyed, there is no wrinkling. The effect increases. The motor 60 is fixed to the lower surface of the machine frame 3, and the rotating shaft 63 is rotatably mounted on a part of the machine frame 3 on the rotating shaft 46.

Next, FIG. 2 shows a schematic plan view of the transport device according to the present invention. As clearly shown in this figure, the upper traveling portion 5 (lower traveling portion 4) extends obliquely in a state of branching off from the base conveyor 1, and in particular, is inclined by about 30 degrees with respect to the direction in which articles are conveyed by the base conveyor 1. In the running state, it extends horizontally from the side edge of the base conveyor 1 so that the conveyed articles W flowing on the base conveyor 1 can be taken into the skew conveyor 2 as required. Here, as shown in the figure, the conveyed object W mainly composed of a book is conveyed in a state where a part thereof protrudes from the side edge of the base conveyor 1, and a separation signal of the conveyed object W is transmitted immediately before the skew conveyor 2. At this time, the protruding portion is clamped at one end of the lower traveling portion 4 and the upper traveling portion 5 so as to be drawn into the skew conveyor 2. For example, immediately before the skew conveyor 2, a weight detector is installed at one end side of the base conveyor 1 to measure the weight of the conveyed product W, and when the measured value is outside the reference value, a classification signal is output. Thus, defective products can be eliminated from the base conveyor 1 through the skew conveyor 2. In FIG. 2, reference numerals 42a and 52a denote bridge plates for fixing the guide rails 42 and 52 at required intervals.

As shown in FIG. 3, a long hole 52b is opened in a side surface of the guide rail 52, and the guide rails 52 are fixed at required intervals to a bridge plate 52a penetrated by the long hole 52b. Both ends of the erection plate 52a are fixed to the side plate 5a. Although the figure illustrates the guide rail 52 of the upper traveling unit, the guide rail of the lower traveling unit has the same configuration. However, both ends of the erection plate are fixed to the machine frame at a position where the upper surface of the guide rail is slightly higher than the upper surface of the base conveyor in the lower traveling portion.

FIG. 4 is an enlarged perspective view showing a part of the lower traveling portion. In FIG. 4, reference numeral 70 denotes a movable pulley, which is rotatably attached to a bracket 71 at one end of the guide rail 42,
An endless belt 41 is hung on the outer periphery.

FIG. 5 is a plan view showing this state.
The movable pulley 70 has, for example, required three places as shown in the figure,
In particular, they are provided in series with the guide rails 42 on the upstream side of the starting end of the base conveyor 1. Then, according to the lower traveling section 4, the movable pulleys 70 are attached to the machine frame in a state of being close to the side edges of the base conveyor 1.

Next, FIG. 6 shows a state in which the conveyed article W is taken into the skew conveyor 2. 72 is a crank attached to the drive shaft of the motor 73, 74 is a rod having one end pivotally connected to the crank 72 and the other end pivotally attached to the bracket 71, and 75 is a plate fixed to the lower surface of the machine frame 3. The lower side of the bracket 71 to which the movable pulley 70 is attached is a plate 75.
Is fitted to a protruding ridge 75a provided on the base member, and is vertically movable along the protruding ridge 75a. In particular, the movable pulley 70
Is in a standby state below the upper surface of the base conveyor 1 in a normal state, and when the above-described sorting signal is transmitted from a weight detector or the like (not shown), the motor 73 operates to move the movable pulley 70 to the position of the pulley 43b. To rise up. At this time, the movable pulley 70 pushes up the lower surface of the article W, and the endless belt 4
1 and the endless belt 51 of the upper traveling unit 5 clamp the conveyed object W and draw the conveyed object W between the lower traveling unit 4 and the upper traveling unit 5. Here, the lower traveling unit 4
, Especially the mutual endless belt 41,
The interval inside 51 is adjusted to the thickness of the transported object W,
In particular, the height of the upper traveling unit 5 is freely movable so that the height of the endless belt 51 can be adjusted to a position where the endless belt 51 does not come into contact with the transported object W in a normal state.

FIG. 7 is a schematic plan view of the upper traveling unit 5.
As shown in this figure, a support portion 80 is fixed to the side plate 5a to which the guide rail 52 is fixed via a bridge plate 52a, and a guide shaft 81 and a screw shaft 82 pass through the support portion 80. I have.

FIG. 8 is a schematic side view showing the upper traveling unit 5. As shown in this figure, both ends of the guide shaft 81 are fixed to the machine frame 3 and support the upper traveling unit 5 so as to be able to move up and down.
The screw shaft 82 is screwed into a part of the support portion 80, and one end protrudes from the upper part of the machine frame 3. The screw shaft 8
A bevel gear 82a is attached to one end of the gear 2, and this is meshed with a bevel gear 83a of an operation shaft 83 installed on the upper part of the machine frame 3. A handle 84 is attached to one end of the operation shaft 83,
By operating the handle 84, the screw shaft 82 can be rotated forward and backward. For this reason, the height of the upper traveling portion 5 can be adjusted according to the thickness of the transported object.

Next, FIG. 9 shows the lower traveling section 4 and the upper traveling section 5.
Fig. 2 shows a power transmission system for power. In the lower traveling unit 4 and the upper traveling unit 5, endless belts 41 and 51 are connected to pulleys 43.
a, 53a and the pulleys 43b, 53b,
In particular, in the lower traveling section 4, a part of the endless belt 41 is
3a and an intermediate pulley 43
“b” is a guide for preventing contact between the endless belt 41 and the guide rail 42 when the movable pulley 70 moves up and down. In the lower traveling section 4, the endless belt 41 is moved clockwise in FIG.
In the upper traveling section 5, the endless belt 51 travels counterclockwise in FIG.

By the way, in order to transmit the power of the motor 60 to the upper traveling section 5, a toothed belt 66 is hung between the belt wheels 65, 57.
It is stretched and stretched via 1,92. One guide wheel 91 is rotatably attached to the machine frame 3 via an arm 91a, and the other guide wheel 92 is rotatably attached to the side plate 5a via an arm 92a. Therefore, the upper traveling part 5
When raising and lowering, the belt wheel 57 on which the toothed belt 66 is hung and the guide wheel 92 also move up and down, so that the toothed belt 66 expands and contracts vertically while maintaining a constant tension, and The power of the motor 60 is properly transmitted.

The preferred embodiment of the present invention has been described above.
The transport device configured as described above is used, for example, as a substitute for the transport device F2 in the bookbinding process shown in FIG. 10 or in a state where the transport device F2 and the like and the base conveyor 1 are continuous.

[0028]

According to the present invention, since the skew conveyor is provided obliquely with respect to the base conveyor, the transfer of the conveyed material from the base conveyor to the skew conveyor is smooth, and the skew conveyor is also provided. Since the transferred goods can be transferred in a predetermined direction by a skew conveyor as it is, various manufacturing processes can be easily constructed.

Further, since a movable pulley close to the side edge of the base conveyor is provided at one end of the lower traveling portion, it is possible to smoothly pull the conveyed goods on the base conveyor into the skew conveyor when the movable pulley is raised. In particular, when the movable pulley is lifted, the conveyed material on the base conveyor is clamped by the lower traveling portion and the upper traveling portion and can be quickly drawn in, so that the desired conveyed material can be quickly taken out from the base conveyor, and furthermore, the taken out conveyed material can be obtained. Since the movable pulley can be returned during the transfer, the feed pitch of the transferred object can be reduced, and a large amount of transfer can be performed.

Further, in the lower traveling section, an endless belt is hung on a movable pulley, and the endless belt extends continuously from the side edge of the base conveyor, so that the transfer of the conveyed goods on the skewed conveyor becomes smoother, and The device itself can have a simple structure.

Further, since the distance between the lower traveling portion and the upper traveling portion can be adjusted, various kinds of articles such as books having different thicknesses can be transferred and sorted.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred example of a transport device according to the present invention.

FIG. 2 is a schematic plan view of the transfer device.

FIG. 3 is a perspective view showing a guide rail used in the transfer device.

FIG. 4 is an enlarged perspective view showing a part of a lower traveling unit.

FIG. 5 is a plan view showing a part of a lower traveling unit.

FIG. 6 is a partially enlarged view showing a state in which a conveyed object is transferred to a skew conveyor.

FIG. 7 is a schematic plan view showing an upper traveling unit.

FIG. 8 is a schematic side view showing the upper traveling unit.

FIG. 9 is a side view showing a power transmission system in the skew conveyor.

FIG. 10 is a schematic plan view showing an example of a bookbinding process.

FIG. 11 is a schematic side view showing a conventional example of a transfer device used in a bookbinding process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base conveyor 2 Skew conveyor 3 Machine frame 4 Lower traveling part 41 Endless belt 5 Upper traveling part 51 Endless belt 70 Movable pulley

Claims (1)

(57) [Claims] An undercarriage comprising a base conveyor and a skew conveyor provided obliquely to the base conveyor, wherein the skew conveyor has endless belts running in opposite directions to face each other in a vertical direction. Part and upper running part,
The lower traveling portion has a movable pulley on one end on which the endless belt can be hung up and down, and the movable pulley is attached to the machine frame in a state close to a side edge of the base conveyor. A transfer device, wherein the distance between the upper traveling portion and the lower traveling portion is variable by being provided on a machine frame so as to be able to move up and down.