JPH03288706A - Roller conveyor - Google Patents

Abstract

PURPOSE:To prevent oil from shifting to the outside of a roller, to prevent slipping and to prevent a load from sliding and being damaged by providing a pair of right and left ring flanges on the roller and positioning the flanges on the side of a transmission roller inside of a transmission roller contact point in a roller conveyor to convey a pallet or others. CONSTITUTION:A roller 31 and a freely rolling roller 88 are installed with ring flanges 49, 94 on their middle part positions. On the marginal parts of these flanges 49, 94, an outward inclined part is formed. In this case, the flange 49 on the side of a motor and a transmission roller 72 is positioned inside of a contact point of the transmission roller 72. Additionally, a conveyor frame 14 to support the roller 31 is covered with a cover 30 from the upper side of a side plate 18 on one side to the neighborhood of the flanges 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a roller conveyor that supports and conveys pallets on which loads are placed and the loads themselves.

BACKGROUND OF THE INVENTION Conventionally, as this type of roller conveyor, a structure as shown in, for example, Japanese Utility Model Application Publication No. 1-111609 has been provided. In this conventional structure, the main body frame is composed of a pair of left and right side frames and a base frame connecting the lower portions of these side frames, and supports are attached to opposing surfaces of the both side frames. A conveying roller is rotatably supported between both supports via a bearing. One of the supports is provided with a spindle that can swing downward by 1", and this spindle includes a sprocket that constantly engages the drive chain, and a transmission roller that can freely come into contact with and separate from the conveyance roller. Can be set freely.

An air cylinder device is provided that moves the support shaft up and down in order to bring the transmission roller into contact with and away from it.

According to this conventional method, by operating an air cylinder device, the support shaft is swung up and down, and the transmission roller, which is constantly driven via the driving chain or sprocket, is brought into contact with and separated from the conveyance roller, and the At times, the conveyance rollers are forcibly rotated. The load is transported through the pallet by forced rotation of the transport rollers.

Problems to be Solved by the Invention According to the above-mentioned conventional method, when oil adheres to the lower surface of the pallet 1 or drops from the load (workpiece, etc.),
This adheres to the m-feed roller, and the oil gradually moves outward until it reaches the abutting portion of the transmission roller. This causes a slip phenomenon, and the transmission of rotational force, that is, the intended conveyance due to forced rotation, cannot be carried out smoothly.

It is an object of the present invention to provide a roller conveyor which has a simple structure, can always perform good pressure transmission in a transmission part, and can guide to prevent sideways sliding without causing damage due to sliding contact on the back side. At the point.

Means for Solving the Problems In order to achieve the above object, the roller conveyor according to the present invention has rollers freely rotatable on the main body frame side, and rollers are always connected to a drive device near one side of the main body frame. ,
and a transmission device that can be freely connected to and separated from the roller; the transmission device has a transmission roller that can come into contact with and separate from the roller from below; the roller is provided with a pair of ring-shaped flanges on the left and right; The flange is located inside the contact portion of the transmission roller.

According to the configuration of the present invention, the transmission roller of the transmission device that is interlocked with the drive device is connected to (contacts) the conveyance roller from below, so that the roller is forcibly rotated and the conveyed object is moved to the downstream side. may be transported to

Further, by separating (separating) the transmission roller from the roller by reverse operation, the roller can be brought into a non-driving state and conveyance can be stopped. During the aforementioned transport, the flange that is easily attached to the roller and rotates integrally with the roller prevents the transported object from shifting laterally without causing damage due to sliding contact. In addition, oil adhering to the roller from the conveyed object side gradually moves outward on the circumferential surface of the roller, or is caught by a flange in the middle of the roller, preventing it from moving further outward. be done. Therefore, the rotational force does not reach the contact portion with the transmission roller, and the rotational force can be transmitted without causing any slip phenomenon.

Actual can example An embodiment of the present invention will be described below based on the drawings.

In FIGS. 5 and 6, 1 is a shelf frame, which includes a plurality of left and right front columns 2, a plurality of left and right rear columns 3, a front cross member 4 that connects the front columns 2, and a rear column 3. Rear cross member 5 connecting
It is composed of a front and rear member 6 that connects the front strut 2 and the rear strut 3, and the like. Supports 2 and 3 of this shelf frame 1 and each material 4 to 6
A pair of left and right conveyors 10.
A roller conveyor 2 is arranged horizontally with its conveying direction 13 as the depth direction. That is, as shown in FIGS. 1 to 4, the conveyor frame 14 of one conveyor 0 includes a pair of left and right side plates 18 and both side plates 1.
8 and a bottom plate 19 connecting the lower ends of the base plate 8, the cross section is formed into a 1J shape. In the upper part of the side plate 18, there is a shaft hole 21 for mounting a roller (described later), and in the middle part there is a bolt hole 23 for fixing a transmission device (described later). A plurality of bolt holes 25 are formed at a predetermined pitch in the lower part of one side plate 15 for fixing a kite rail (described later). Conveyor frame 1 formed in this way
4 is detachably fixed to the shelf frame 1. For this purpose, bolt holes 26 are formed in the bottom plate 19, nuts 27 matching the holes 26 in the bolt 1 are fixed on the bottom plate 19 in the conveyor frame 14, and through holes formed in the crosspiece 4.5. A bolt 29 passed through 28 from below can be fitted into a nut 27 through a bolt hole 26.

The roller 31 made of resin is attached to the conveyor frame 14 by passing the roller shaft 32 through the shaft hole 21, and is freely rotatable around the roller axis 33. A kite rail 35 is disposed over the entire length at one corner of the bottom of the conveyor frame 14, and this guide rail 35 has a dovetail groove portion 36 on the outside and a pair of upper and lower guide portions 37, 38 on the inside. has. Three plate-shaped nut bodies are slidably fitted into the dovetail groove 36, and the bolts 40 passed through the bolt holes 25 from the outside are engaged with the bolt bodies 39 and tightened, thereby tightening the conveyor frame 14. The kite rail 35 can be fixed to.

The Cheno 41, which is an example of a driving body, has an upper path leading to the upper kite section 37, and a lower path leading to the lower kite section 38.
will be supported and guided. The chino 41 is stretched between a driving sprocket 42 and a driven sprocket 43 via a kite sprocket 44, etc., and the driving sprocket 42 is operatively connected to a motor 45 (see FIG. 4).
. 46 indicates a conveyance route. 47 is a load, which is handled via a pallet 48.

A transmission device 50 is provided in the conveyor frame 14 between the roller 31 and the kite rail 35 and is interlocked with the chino 41 and can be connected to and separated from the roller 31 at will.

In other words, the support frame 51 made of resin includes one support plate 52 that can be freely applied to the inner surface of one side plate 15 and fit into the upper part of the guide rail 35, and a support plate 52 that can be freely fitted onto the inner surface of one side plate 15 and inserted from the front and rear ends of this force support plate 52 to the other side. A pair of cover plates 53 are connected to each other and a support that connects the lower ends of these cover plates 53 and extends toward the other is integrated with the other end of the support plate 54 and is integrated with the other end of the support plate 54. The inner surface of the side plate 16 is formed by the other supporting plate 55 which can be freely abutted. Here, a plate 54 can be freely placed on the bottom plate 19, and a main body 57 of a cylinder device 56, which is an actuating device using fluid, is mounted on the plate 54.
are integrally formed, and a pipe holding portion 58 is provided at the bottom. A bearing hole 59 is formed in the center of the force support plate 52, and a loose fitting hole 60 is formed in the other support plate 55 opposite thereto. A nut 61 is embedded and fixed in the support plate 52 above the bearing hole 59, and by tightening the bolt 62 passed through the bolt hole 23 from the outside, the force support plate 52 is fixed. 52 is fixed to one side plate 18.

Further, under the loose fitting hole portion 60, the other support plate 55 is also embedded with a nut 1-63 and is fixed to the bolt hole 23.
The other support plate 55 is fixed to the other side plate 18 by fitting the port 64 passed through from the outside with the nut 63 and tightening it. The cylinder device 56 includes a rubber body 6 that is expandable and contractible.
5 onto the main body 57 from above, and then the band 66
It is constructed by fixing it with etc.

The support shaft 70 along the roller axis 33 has one end fitted into the bearing hole 59 and the other end inserted into the loose fitting hole 60, so that the support shaft 70 can move within a certain range with the bearing hole 59 as a fulcrum. It can freely swing up and down. A sprocket 71, which is an example of a passive transporter and is always in mesh with the chain 41, is freely rotatably attached to the support shaft 70, and a transmission roller 72 is fitted onto the boss of the sprocket 71, so that both 71 and 72 are integrally rotatable. This transmission roller 72 is made of urethane rubber, and its outer periphery is connected to the roller 31.
It can freely come into contact with and separate from the lower part of the outer periphery. And the support shaft 70
By bringing the cylinder rubber receiver 73 into contact with the rubber body 65 from above, the transmission roller 72 is brought into contact with and separated from the roller 31 from below by the operation of the cylinder device 56. It consists of

The pairs of the above-mentioned bending rollers 31 and the transmission device 50 are arranged every other pair, and an idle roller 78 is arranged between each roller 31 via a roller shaft 79.

The conveyor frame 80 in the other conveyor 1 is
As shown in FIGS. 1 and 5, the cross section and shape are formed by a pair of left and right side plates 84 and a bottom plate 85 connecting the lower ends of both side plates 84. A shaft hole 86 is formed in the upper part of the side plate 84, and a roller shaft 89 to which an idling roller 88 is attached is passed through both shaft holes 86. The conveyor frame 80 formed in this manner is detachably fixed to the shelf frame 1. For this purpose, a bolt hole 90 is formed in the bottom plate 85, and a nut 91 matching the bolt hole 90 is fixed on the bottom plate 85 within the conveyor frame 80, and the cross member 4,
A port 93 is inserted from below into a through hole 92 formed in 5, and can be freely fitted to a nut 91 via a bolt hole 90.

A ring-shaped flange 49.81.94 is attached to the roller 31 and the idle roller 78.88 at an intermediate position. These flanges 49, 81, 94 have peripheral edges that are inclined outwardly. At this time, the flange 49 on one side is located inside the contact portion 31a of the transmission roller 72. Further, a cover 30 is connected from the upper end of the side plate 18 on one side of the conveyor frame 14 to cover the above-mentioned contact portion and reach close to the flange 49.

As described above, the roller conveyor 12 consisting of a pair of conveyors 10 and 11 is configured to carry out multiple groups in the conveying direction 13, with each group consisting of six conveyors (plurality) arranged in a predetermined manner, as shown in FIG. 4, for example. In the example, eight groups A, B, C, D, E, F, G, and H are arranged, and the transmission device 50 can be freely connected and separated for each group. That is, each group is provided with a supply/discharge port 95 in which cylinder devices 56 are connected in series, and these supply/discharge ports 95 are communicated with a common air supply port 98 from an air supply device 97 via a solenoid valve 96, respectively.・Can be shut off freely. A photoelectronic switch 101, which is an example of a stock detector, is provided at the downstream end of each group A to H. Here, the two groups adjacent in the transport direction 13 are:
When the photoelectronic switch 101 of the first stream side group detects and the photoelectronic switch 101 of the downstream group does not detect, the transmission devices 50 of both groups simultaneously operate (connecting the air supply hose 98 and the supply/discharge hose 95). ) is structured as much as possible. When the photoelectronic switches 101 in both groups are simultaneously in the detecting operation or in the non-detecting operation at the same time, the transmission devices 50 in both groups are simultaneously in the separating operation (the air supply port 98 and the supply/discharge hose 9
5). To this end, each solenoid valve 96 is incorporated within its respective control unit 102. Further, only the most downstream group A is configured so that the transmission device 50 separates and moves when the optoelectronic switch 101 is detected and operated. 10
3 indicates the width 1 to the brim.

In the embodiments described above, each conveyor frame 14.80 includes a roller 31, a kite rail 35, an f-height movement device 50, an idling roller 78.88, etc., and the shelving equipment is installed on site by being transported to the site. Each conveyor 1011 is attached during or after the shelf frame 1 is assembled. This is bolt hole 26.90 through hole 28.92
This can be done by matching the holes 1 to 29.93 that pass through the through holes 28.92 from below to the nuts 1 to 27.91 and tightening them. This allows both conveyors 10.
4 to pallet 1 across 11 rollers 31, 78, 88
8 is formed, and a flange 49.81° 9 is distributed on both sides of the conveyance path 46.
Four groups will be located. Each conveyor 10 mentioned above
．． 11, if the conveyor path 46 is long, each conveyor 10.11 is joined in the length direction. However, things like Cheno 41 are shared.

Next, the storage and conveyance work of the load 47 in the first embodiment will be explained.

1 and 3, the solenoid valve 96 is switched to connect the air supply port 98 to the supply/discharge hose 95, the support shaft 70 is swung upward by the expansion of the cylinder device 56 due to air pressure, and the transmission roller 72 is shown pressed against the corresponding roller 31 from below. At this time, the chino 41 is constantly being driven by the motor 45, and therefore the sprocket 71 which is connected to the chino 41 in the f-system is rotating around the support shaft 70. Further, the transmission roller 72 is in contact with the lower portion of the outer circumference of the roller 31, thereby forcing the group of rollers 31 to rotate. As a result, the pallets 1 to 48 on the conveyance path 46 are supported between the rollers 31 and idle rollers 78 and 88 of both conveyors io and ii, and receive the conveyance force due to the forced rotation of the rollers 31 group. , this transport path 46
It will be transported on top. At this time, the non-driven idle roller groups 78 and 88 perform follow-up rotation. Furthermore, pallet 48
are located between the flange 49.81 on one conveyor 10 and the flange 94 on the other conveyor 11, so when the conveyor 3 is about to pass sideways during conveyance, these flanges 49.81. Uke is stopped at 94 and does not fall off. Moreover, the flanges 49.81.94 are rollers 31 and 7.
8.Since it rotates integrally with 88, this flange 49
．． 81.94 to prevent lateral slippage and prevent sliding contact between the pallets 1 to 48, which are kited. Furthermore, if the oil adhering to the lower surface of the pallets 1 to 48 or the oil dripped onto the load (workpiece, etc.) from 7 does not adhere to the roller 31, this oil will gradually migrate to the outside; The receiver is stopped by the four flanges at the middle part, and is prevented from moving further outward. Therefore, the rotational force that reaches the contact portion with the transmission roller 72 can be transmitted without any slip phenomenon occurring.

Roller conveyor 12 consisting of a pair of conveyors 10.11
Basically, the pallet 48 (load 4
7), but in reality, the conveyance control is performed based on whether the optoelectronic switch 101 detects or does not detect the pallets I to 48. In other words, when the reverse route 46 is empty, if the forklifts 1 to 8 do not place the pallets 1 to 48 on the upstream end, the optoelectronic switch 101 of the croup 11 detects the group G. Since the photoelectronic switch 101 is not detected, the transmission device 50 is connected by the operation of the control units 1 to 102 and the solenoid valve 9G, and the group + (, G
The rollers 31 are forcibly rotated, thereby conveying the pallet 48 from group I to group G. pallet 48
enters group G, the optoelectronic switch 101 of this group G detects, but does not detect group F. Therefore, the transmission devices 50 of groups G and F connect and move, and the pallet 48 is transferred from group G to group F. The pallets 48, which are sequentially conveyed to the downstream side, come into contact with the collar 103, stop, and are stored in group A. Then, when the optoelectronic switch 101 detects the pallets 1 to 48, the transmission device 50 of group A is moved separately. 2nd pallet 1-48
The pallets 1 to 48 of group A are conveyed in the same manner, and are slaged in group B by contacting pallets 1 to 48 of group A. At this time, group B is detected, but since group A is also detected, the transmission bag '8. of group B is detected.
50 will also move separately. In such an operation, it is assumed that, for example, pallets 48 are stored in all groups A to H, and all transmission devices 50 are moved separately. In this state, the pallet 4 of group A is picked up by forklift truck 8.
If 8 is not removed, the opto-electronic switch 101 of group A will not be detected, so the transmission devices 50 of groups A and H are connected, thereby conveying 48 to group A to pallet 1 of group B. Then, since the optoelectronic switch 101 of group B becomes non-detecting, the transmission devices 50 of groups B and C are connected, thereby transporting the pallet 48 of group C to group B as shown in FIG. .

By repeating such actions, the pallets 48 can be sequentially fed.

In the above case, all rollers 31.78.88 are provided with flanges 49.81.94, but this is possible depending on the relationship between the pitch between the rollers and the length of the pallet I. It is also possible to install it in a stand or every second place. However, the roller 31 paired with the transmission 50
A flange 49 is always attached to the flange 49.

In the above embodiment, the roller conveyor 12 is made up of a pair of conveyors 10 and 11, but the roller conveyor 12 may also be a roller conveyor 12 that uses integral rollers in the left and right directions.

In the above example, the roller conveyor 12 is installed in the shelf frame 1, but it may also be installed on the floor.

Effects of the Invention According to the present invention having the above configuration, by connecting (abutting) the transmission roller of the transmission device which is interlocked with the drive device to the transporting roller 17 from below, the roller is forcibly rotated and the conveyed object is moved. The object can be conveyed to the downstream side, and by separating the transmission roller from the rollers by reverse operation, the roller can be put into a non-driving state and the conveyance can be stopped.

During the above-mentioned transport, the flange prevents the transported object from shifting laterally, and since this flange rotates integrally with the roller 7, there is almost no sliding contact, and smooth transport can be performed without causing damage or frictional resistance. I can do it.

Further, the flange can be easily taken on a roller (1=JG-). In addition, the oil that adheres to the IV roller from the conveyed object side and gradually moves outward on the circumferential surface of the roller is stopped by a flange in the middle of the roller, and is prevented from moving further outward. Therefore, the oil does not reach the contact portion with the transmission roller, and rotational force can always be transmitted satisfactorily without occurrence of a slip phenomenon.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway north view of the main part, FIG. 2 is a partially cutaway plan view of the main part of the drive side conveyor, and FIG. 3 is a partially cutaway plan view of the main part of the drive side conveyor. FIG. 4 is a schematic side view showing the state of use, FIG. 5 is a partially cutaway front view of the shelving mii, and FIG. 6 is a side view of the same. 1... Shelf frame, 7... Compartment storage space, 10, 11...
Conveyor, 12... Conveyance device, 13... Conveyance direction,
14...Conveyor 8 Frame, 19...Bottom plate, 26...Poll)~hole, 2
7... Oak 1~. 28...Through hole, 29...Bolt, 30...Cover, 31...)7-ra, 35...
・Kite rail, 37.38...Guide part, 41...
・Dien (driving body), 42... Drive sprocket, 4
3... Driven sprocket, 46... Conveyance path, 47
...Load, 48...Pallet, 49...Flange,
50... Transmission device, 51... Support frame, 52...-
Force support plate, 54...The receiver is a plate, 55...The other support plate,
56... Cylinder device (actuating device), 57... Main body, 59... Bearing hole, 65... Rubber body, 70...
Support shaft, 71... Sprocket, 72... Transmission 17-
78... Idle roller, 80...: 1 conveyor frame, 81... Flange, 88... Idle roller, 9
0...Pol 1~hole, 91...Nara 1~. 92...
Through hole, 93...pol l~, 94...flange, 9
5... Supply/discharge port, 96... Solenoid valve, 98... Air supply hose, 101... Photoelectronic switch (stock detection device), 102... Control unit, A to H... Group .

Claims (1)

[Claims] 1. A roller is disposed on the main body frame side so as to be freely rotatable, and a transmission device is provided near one side of the main body frame, and is constantly interlocked with a drive device and can be connected to and disconnected from the roller. The roller has a transmission roller that can freely come into contact with and separate from the roller from below, and the roller is provided with a pair of ring-shaped flanges on the left and right, and the flange closer to one side is located inside the contact part of the transmission roller. Features a roller conveyor.