JP2613485B2 - Conveyor with positioning structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller-type or belt-type conveyor that supports and conveys a pallet on which a load is placed or a load itself.

2. Description of the Related Art Conventional roller type conveyors include, for example,
There is provided a structure as found in JP 56-132209. In this conventional structure, a number of rollers are arranged between left and right frames. By the way, in such a roller conveyor,
When the frame is lengthened, transportation from the manufacturing factory to the installation site is not performed suitably. Therefore, when it is desired to form a long transport path, a plurality of roller conveyors are used in a train-like arrangement. That is, for example,
As seen in Japanese Patent Publication No. 411, the support shafts having rollers arranged therein are arranged in a train shape, and the ends of the support rails are fixed to a frame of a rack.

According to the conventional type described above, when each support rail is fixed in a train shape, positioning in the conveyor width direction between adjacent support rails cannot be easily performed, and work at an installation site is difficult. Cannot be done quickly. Further, when a part of the support rail is damaged, it is not easy to switch the corresponding part.

An object of the present invention is to provide a conveyor with a positioning structure that can automatically perform positioning in the conveyor width direction when a plurality of trains are arranged in a train shape, and that can easily switch a part thereof.

Means for Solving the Problems In order to achieve the above object, a conveyor with a positioning structure of the present invention forms a conveyance path between the side frames of a main body frame having a pair of left and right side frames, and between the end portions of both side frames. A connecting member is provided, and a frame cover is attached to the outside of the connecting member, and at least one of a vertical ridge and a vertical groove is formed on an outer surface of the frame cover, and the frame cover is formed. The ridges and the grooves are configured to fit when opposed to each other.

According to the configuration of the present invention, when a plurality of conveyors are arranged in a train shape, by positioning the ridges and the grooves, the positioning in the conveyor width direction can be automatically performed.
When a conveyor that cannot be operated is generated, the conveyor can be lifted by, for example, a crane or the like, so that the conveyor can be taken out while sliding vertically between the ridges and the grooves. Incorporation of a new conveyor
The conveyor may be lowered while sliding vertically between the ridges and the grooves.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

8 and 9, reference numeral 1 denotes a main body frame, which is a pair of left and right side frames 1A and 1B made of an extruded aluminum product.
And a joint plate 1C connected between the lower portions of both side frames 1A and 1B via bolts and nuts 2. A leg frame 4 is connected to the lower portion of both side frames 1A and 1B via bolts and nuts 3 at a position where the joint plate 1C does not exist, and a landing body 5 is provided at a lower end of the leg frame 4. As shown in FIGS. 4 to 9, an L-shaped guide portion 6 is formed on opposing inner surfaces of both side frames 1A and 1B, and an inner open dovetail portion 7 is formed on the upper portion. A lower holding portion 9 having lower grooves 8a and 8b on both sides is formed on the upper portions of both side frames 1A and 1B, and a pair of upper and lower tap grooves 10 are formed integrally with the entire length in the length direction. ing. Further, on the inner surface side, a pair of upper and lower mounting portions 11 and 12 and a fitting portion 29 located between both mounting portions 11 and 12 are formed, where the mounting portion 1 of one side frame 1A is formed.
Guide rails 13 and 14 are disposed on the frames 1 and 12, respectively, in the frame length direction. On the inner surface side of both side frames 1A, 1B, the lower ends thereof are fitted to the guide portions 6 to form resin supporting frames 15A, 15B.
B is provided so that the position can be freely changed (slided) in the frame length direction, and these support frames 15A and 15B slide the bolts 17 passed through the mounting holes 16 formed in the intermediate portion into the dovetail grooves 7. It is fixed at the changed position by being screwed into a freely provided nut body 18. One of the support frames 15A has a case-like shape, and is provided continuously with a substrate portion 19 having a lower end and a mounting hole 16 to be fitted to the guide portion 6 and inward from a lower half inner surface of the substrate portion 19. A pair of front and rear cover plate portions 20, a connecting plate portion 21 provided between the lower ends of these cover plate portions 20, and a groove formed in the lower part of both cover plate portions 20 in the left-right direction, and opened on opposite sides. 22 and a substrate portion 19
A bearing portion 23 is formed above the mounting hole 16.
The other support frame 15B has a rectangular plate shape, a bearing portion 23 is formed above the mounting hole 16, and a wiring groove 24 is formed on both sides of the bearing portion 23 so as to be open vertically and outwardly. I have. Further, a clamp portion 25 for bending and guiding the wiring is formed in a diagonally lower portion of the mounting hole 16 portion. Roller 2 between both support frames 15A, 15B via roller shaft 26
7 is provided for free rotation. That is, the roller shaft 26 can be mounted by fitting both ends of the roller shaft 26 inserted into the roller 27 so as to be freely rotatable relative to the roller 27, and the roller 27 can be freely rotated around the roller shaft 28. Become. On one support frame 15A, there is provided a transmission device 30 which is always linked to a driving device (described later) and which can be connected to and separated from the roller 27. That is, a bearing hole 31 is formed at the lower end of the substrate 19,
The inner end of the first support shaft 32 disposed along the roller shaft center 28 is fitted into the bearing hole 31 so as to be vertically swingable. An L-shaped plate 33 made of resin comprising a horizontal plate portion and a vertical plate portion is fixed by inserting both edges of the horizontal plate portion into the groove 22 and then fixing.
Attached to 15A side. Then, the outer end of the first support shaft 32 is fitted into the vertical recess 34 formed in the vertical plate portion, and
The vertical swing range of the support shaft 32 is regulated. The first support shaft 32
A sprocket 35, which is an example of a passive wheel, is rotatably mounted on the sprocket 35. A transmission roller 36 is externally fitted to a boss portion of the sprocket 35, so that the two 35, 36 can rotate integrally. The transmission roller 36 is made of urethane rubber, and the outer periphery thereof can freely contact and separate from the lower part of the outer periphery of the roller 27. The transmission device 30 is constituted by the above 31 to 36. The support frame
On the 15A side, a first cylinder device 40 for connecting and disconnecting the transmission device 30 is provided. That is, the first cylinder device
Reference numeral 40 denotes a bottomed cylindrical cylinder body 41 which also serves as the bottom part of the center part of the horizontal plate part, and a freely expandable and contractable cylinder body which is formed in a topped cylindrical shape and whose cylindrical part is externally fitted to the cylinder body 41. And a ring-shaped cylinder holder 43 for fixing the cylinder rubber 42. And the cylinder rubber 42
The cylinder rubber receiver 37 attached to the outer end of the first support shaft 32
Is contacted from below. Further, from the upper end of the vertical plate portion of the L-shaped plate 33, a receiving plate 44 is communicated inward via bolts or the like, and a first support is provided between the lower surface of the receiving plate 44 and the upper surface of the cylinder rubber receiver 37. Compression spring 45 for pushing down shaft 32
Is interposed.

A large number of the transmission devices 30 having the above-described configuration are arranged on the main body frame 1 as one set with the rollers 27 via the support frames 15A and 15B.

The transmission 30 is disposed to face most of the rollers 27 except for a part. A braking device 50 is provided for some of the components. This braking device 50 has the same configuration as the transmission device 30. As shown in FIG. 6, a second support shaft 51 along the roller shaft center 28 is fitted with its inner end into the bearing hole 31. And can swing up and down. And the second
A cylindrical boss member 52 is rotatably attached to the support shaft 51, and a urethane rubber braking member 53 is fixed to the boss member 52. The braking body 53 has a cylindrical shape, and its outer periphery is
The lower part of the outer periphery of a is freely contactable and separable, and by displacing the phase in the circumferential direction together with the boss member 52, the action portion is changed to cope with wear and the like. The second support shaft 51
Second cylinder device that acts on the brake body 53 to make contact with it
54 is a cylinder rubber receiver 37 attached to the outer end of the second support shaft 51.
And the horizontal plate portion of the L-shaped plate 33. The boss member 52 integrally has a toothless sprocket 55, which is an example of a non-passive wheel, and the toothless sprocket 55 is shown in FIG.
As shown in FIG. 6, the lower part is formed in the toothless part, and the remaining upper part is formed in the toothed part. A stopper body 56 that engages between the teeth of the toothed portion is provided on the braking device 50 side. That is, the stopper body 56 is, for example, a bolt and can be inserted and removed in a direction along the axis of the second support shaft 51 with respect to the support cylinder portion formed on the substrate portion 19. Rush into.

By arranging the rollers 27 and 27a paired with the transmission device 30 or the braking device 50 at the set pitch on the main body frame 1 as described above, the transport path 58 is formed by the group of rollers 27 and 27a.

As shown in FIGS. 1 to 6, a guide device 60 disposed above the side frames 1A and 1B is provided with a rail member 61 made of a molding material.
And a guide plate 62 attached to the inner surface side of the rail member 61. The rail member 61 is obtained by extrusion molding of aluminum, an outer open side dovetail groove portion 63 on the outer surface side, an inner open side dovetail-shaped mounting groove portion 64 on the inner surface side, and further lower portions on both sides. Upper groove 65a, 65b
The upper holding portion 66 has a tapped groove 81 inside.
Are formed integrally with each other over the entire length in the length direction. The resin guide plate 62 is attached by being inserted into the attachment groove 64 in the length direction.
The side frames 1A and 1B and the guide device 60 are connected by a connecting device 67 at a plurality of locations in the length direction. This coupling device 67 has an outer holding member 68 and an inner holding member 69,
At the lower and upper ends of the opposing surfaces of the holding members 68 and 69, lower protrusions 7 which can be fitted into corresponding concave grooves 8a, 8b, 65a and 65b are provided.
0a, 70b and upper ridges 71a, 71b are integrally formed, and spacer portions 72, 73 located between the sandwiched portions 9, 66 are provided at the intermediate portion.
Are integrally formed. In the center of the outer holding member 68, a through hole 74 in the left and right direction passing through the spacer 72 is formed, and in the inner holding member 69, a screw hole 75 is formed so that the through hole 37 can be fitted. A bolt 76, which is an example of a connector between the holding members 68 and 69, passes through the through hole 74 from the outside, and can be freely fitted into the screw hole 75.

The connection using the bolt 76 may be at one location in the center or at two locations in the length direction.

As shown by phantom lines in FIGS. 5 and 6, the nut body 77 is positioned in the dovetail groove 63, and the detector 78 is applied from the upper surface to the outer surface of the rail member 61. The detector 78 can be fixed to the rail member 61 by engaging a bolt 79 that has passed through the detector 78 from the outside with the nut body 77. The wiring 80 from the detector 78 can be passed inside the side frames 1A and 1B by using the gap formed between the sandwiched portions 9 and 66 corresponding to the spacer portions 72 and 73 of the connecting device 67. At that time, the wiring 80 of the other side frame 1B is passed through the wiring groove 24 of the support frame 15B,
Then, it is clamped by being bent and arranged on the clamp portion 25.

As shown in FIG. 4, the conveyance path 58 of the guide device 60
A taper guide 83 is attached to the end on the upstream side in the direction of. That is, the taper guide 83 includes a tap plate 85 having two (plural) screw holes 84 formed in a half region in the length direction, and a resin guide portion 86 externally fitted and fixed to the other half region of the tap plate 85. This guide section 86
Is formed with a tapered surface 86a on its inner surface. Then, insert the half area of the tap plate 85 into the dovetail groove 63, and
The taper guide 83 can be fixed to the guide device 60 by screwing a bolt 88 passing from the outside into a plate-shaped washer 87 applied to the outside of the screw hole 84 and tightening it.
Also, as shown in FIGS. 1 to 3 and FIG.
An end cover 90 is attached to an end on the downstream side of 60.
The end surface cover 90 is a resin molded product, has a contact surface 90a with the end surface of the rail member 61, and integrally forms a protruding portion 90b that can be inserted into the mounting groove portion 64. By screwing a screw 92 passing from the outside into a screw hole 91 formed in the front-rear direction into the tap groove 81, the end face cover 90 can be fixed to the rail member 61.

As shown in FIG. 2, FIG. 5, and FIG.
Common chain 96 linked to each sprocket 35 in 30
Is stretched between a driving sprocket 97 and a driven wheel 98 via a guide sprocket 99 or the like, and the driving sprocket 97 is connected to the motor 100 in an interlocked manner. A drive device 95 is constituted by these 96 to 100. The chain 9
6 forms an action path meshing with each sprocket 35 and a return path located thereunder. In the working path, the chain 96 is supported and guided by the guide rail 13 attached to the mounting part 11 from below, and the return path is similarly guided by the guide rail 14 attached to the mounting part 12.
Is supported and guided. The driven wheels 98 provided at both ends of the one side frame 1A are disposed in a resin-made bracket 101 in a case shape open front and rear, and a bearing 102 provided between the outer surface of the boss portion and the inner surface of the bracket. It is freely rotatably supported via. The bracket 101 exposes an upper portion of the driven wheel 98 through a notch 103 formed in the upper plate, and allows movement of the chain 96 through the notch 103. Further, the bracket 101 integrally has a fitting portion 104 in the front-rear direction on the outer surface thereof, and is fitted into the fitting portion 29 of the side frame 1A in a plug-in manner. At that time, at both ends of the side frame 1A,
, And the bracket 101 is fitted in the notched portion 105 in a fitted state, and is brought into contact with the missing end to regulate the maximum fitting position. The upper surface of the bracket 101 is formed on a guide surface 106 that continues to the guide rail 13,
Also, on the upper surface of the bottom plate, there is a guide portion 10 connected to the guide rail 14.
7 is formed.

As described above, the rollers 27 and 27a paired with the transmission device 30 or the braking device 50 are, for example, as shown in FIG. B and C are arranged and controlled for each groove. That is, in each of the groups A, B, and C, the first supply / discharge hose 110 connected to the first cylinder device 40 group and the second supply / discharge hose 111 connected to the second cylinder device 54 are connected to the 5-port solenoid valve 112. Supply hose 114 from supply device 113 via
Alternatively, it is configured to be freely connectable. Reference numeral 115 denotes a regulator, and 116 denotes a silencer. Each group A, B, C
Each of the detectors 78 of a photoelectric type or the like is provided. A control panel (not shown) is provided for controlling the entire roller conveyor, for example, operating the electromagnetic valve 112 based on detection or non-detection of the detector 78. Numeral 118 denotes a bucket which is an example of a transferred object.

The roller conveyor 119 configured as described above,
A plurality of units are arranged in a train shape with the transfer path 58 being linear. As a result, more groups D, E, F... N are arranged. Then, a structure for facilitating train-like arrangement is employed.

That is, as shown in FIGS. 1 to 4, both side frames 1A, 1B
A connecting member 120 is provided between the end portions. This connecting member 1
Reference numeral 20 denotes a long plate, and a tap screw 122 passed from the outside through through holes 121 formed on the upper and lower ends of both ends thereof is formed in the tap groove 10.
It is fixed by screwing in. A plurality of positioning holes 123 and a plurality of screw holes 124 are provided at both ends of the connecting member 120, and a cutout portion for passing the wiring 80 and the like is provided at a lower portion near one side frame 1A. 125 is formed. At both ends of the connecting member 120, frame covers 126 are attached outside. On the inner surface of these frame covers 126, positioning projections 127 that can be fitted into the positioning holes 123 are protruded, and the positioning projections 127 are fitted into the positioning holes 123, so that Frame cover
After positioning and applying 126, frame cover 126
The frame cover 126 can be fixed to the connecting member 120 by engaging a bolt 129 that passes through the through hole 128 formed from the outside with the screw hole 124. On the outer surface of the frame cover 126, a vertical ridge 130 or a vertical groove 131 is formed. When the conveyors are arranged in a train shape, that is, when the conveyors are arranged in a train shape,
6 are configured to fit each other when facing each other,
The frame covers 126 are distributed so that this fitting is performed. Therefore, when the convex ridge portion 130 and the concave groove portion 131 are fitted and arranged in a train shape, positioning in the conveyor width direction between the adjacent roller conveyors 119 is automatically performed simultaneously with the fitting, and Roller conveyor
When the 119 is moved up and down, sliding in the vertical direction is performed between the ridge portion 130 and the concave groove portion 131. One frame cover
A through hole 132 is formed in 126 so as to be able to communicate with the notch 125.

When attaching the guide device 60 to the side frames 1A and 1B in the roller conveyor 119 having the above-described structure, the holding members 68 and 69 are applied between the side surfaces of the holding portions 9 and 66, and the spacer portions 72 and 73 are attached at this time. The protrusions 70a, 70b, 71a, 71b are fitted into the concave grooves 8a, 8b, 65a, 65b while being positioned between the holding portions 9, 66. Then, the bolts 76 passed through the through holes 74 from the outside may be engaged with the screw holes 75 and tightened. The connecting position by the connecting device 67 can be an arbitrary position in the length direction. Detector 78
Can be attached by tightening the bolt 79 with the nut body 77. At this time, the dovetail groove 63 is
Since it is not used for 67, it can be performed at any position in the length direction.

And the taper guide 83 for the upstream end of the guide device 60
Insert the tap plate into the dovetail groove 63,
After attaching a washer 87 to the outside of the rail material 61, this washer
A bolt 88 passed through the hole 87 from the outside is engaged with the screw hole 84 of the tap plate 8 and tightened. The mounting of the end cover 90 to the downstream end of the guide device 60 is performed by inserting the protruding portion 90b into the mounting groove 64 from the downstream side and bringing the contact surface 90a into contact with the end surface of the rail member 61. This can be done by screwing a screw 92 passing from the outside into the tap groove 81 from the outside.

The connecting member 120 is applied between the end portions of the side frames 1A and 1B, and the tap screw 122 passed through the through hole 121 from the outside is screwed into the tap groove 10 of the side frames 1A and 1B to fix the connecting member 120. Is performed. And the positioning hole 123 of the connecting member 120
The frame cover 126 is applied so that the positioning projection 127 fits into
The frame cover 126 can be fixed by fitting the frame cover 126 into the screw hole 124.

The roller conveyor 119 configured as described above,
A plurality of the film covers 126 are abutted against each other and arranged in a train shape to form a long transport path 58. At that time, the ridge
By fitting the groove 130 and the groove 131, positioning in the conveyor width direction between the adjacent roller conveyors 119 is automatically performed simultaneously with the fitting. Then, as shown in FIG. 2, the connection between the roller conveyors 119 is carried out by the connecting device 67 using long holding members 68, 69.

Roller conveyor 11 arranged like a train as described above
The nine groups are divided into a plurality of groups A to N according to the length of the bucket 118 and the like.

Next, the transfer operation in the above embodiment will be described. Second
5, 5 and 10, the solenoid valve 112 is switched to connect the air supply hose 114 to the first supply / discharge hose 110 in all the groups A, B, C. (expansion)
, The first support shaft 32 is swung upward against the urging force of the compression spring 45, and all the transmission rollers 36 are moved to the corresponding rollers 27.
Is pressed from below. At this time, the chain 96 is constantly driven by the motor 100, and
All sprockets 35 engaged with 96 are rotating about the first spindle 32. Further, the transmission roller 36 is
The rollers 118 are forcibly rotated by being in contact with the lower portion of the outer periphery of the, and the bucket 118 can be transported on the transport path 58 having the entire length as a drive zone. At this time, the second supply / discharge hose 111 is open, the second cylinder device 54 is not operated, and the second support shaft is pressed by the pressing force of the compression spring 45.
The rocker 51 is swung downward to separate the brake 53 from the roller 27a as shown in FIG. Therefore, no braking action occurs, and the corresponding roller 27a is
It will idle by the movement of 18.

For example, as shown by the group B in FIG. 11, the solenoid valve 112 is switched to connect the air supply hose 114 to the second supply / discharge hose 111, and the compression spring is extended by the extension of the second cylinder device 54 as shown in FIG. By swinging the second support shaft 51 upward against the urging force of 45 and pressing the brake body 53 against the corresponding roller 27a from below, idle rotation of the roller 27a can be prevented. Thus, the bucket 118 can be braked to prevent conveyance. When the brake 53 is pressed against the first supply / discharge hose 110 as shown by the imaginary line O in FIG.
Is released and the first cylinder device 40 is deactivated, and the first support shaft 32 is swung downward by the urging force of the compression spring 45, and the roller 27 is moved downward as shown by the imaginary line Q in FIG. And the transmission rollers 36 are separated from each other, and these rollers 27 are not driven. For example, as shown in FIG. 11, when the bucket 118 is in the storage state up to the group B, the bucket 118 transported in the group A in the driven state is
During the transfer, the light is detected by the detector 78 as indicated by a virtual line R. When two of the detection signal and the detection signal from the group B are input, the solenoid valves 112 of the group A are automatically switched, so that the transmission roller 36 is separated and the brake body 53 is brought into pressure contact as described above. This makes the bucket 118
, And can be stopped without colliding with the front bucket 118 as shown by the imaginary line S.

When the bucket 118 of the group B is carried out, for example, the detection signal from the detector 78 of the group B disappears, so that the solenoid valve 112 of the group A is automatically switched to the driving side, and the bucket 118 is moved to the group. It will be transported to the B side.

The above operation is controlled by the control panel. The expansion and contraction of the cylinder rubber 42 in the two cylinder devices 40 and 54 causes the two devices 30 and 50 to be reversibly connected and separated.

During normal use, for example, when the intermediate roller conveyor 119 breaks down, the connection with the front and rear roller conveyors 119 by the connecting device 67 is first released. Then, the raised conveyor is raised by a crane or the like, so that the ridges 130
It can be taken out while sliding in the vertical direction between the groove 131 and the groove 131. A new roller conveyor 119, which has been prepared separately or has been repaired,
By lowering while performing vertical sliding between the ridge portion 130 and the concave groove portion 131, it can be incorporated into the intended line.

Although the roller conveyor 119 is shown in the above embodiment, it may be a belt conveyor.

Effects of the Invention According to the present invention having the above-described configuration, when a plurality of conveyors are arranged in a train shape, positioning in the conveyor width direction can be automatically performed by fitting the ridge portions and the groove portions. Work at the installation site can be performed quickly.
When a conveyor that cannot be operated occurs, for example, the corresponding conveyor is lifted by a crane or the like, so that the conveyor can be easily taken out while sliding vertically between the ridges and the grooves. The incorporation of a suitable conveyor can be easily performed by lowering the conveyor while sliding vertically between the ridges and the grooves.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of a conveyor end, FIG. 2 is a partially cutaway side view of a connecting portion, FIG. 3 is a plan view of the same, and FIG. FIG. 5 is a partially cutaway front view of the transmission, FIG.
FIG. 7 is a partially cutaway front view of the braking device, FIG. 7 is an outer view of the other support frame, FIG. 8 is a partially cutaway front view of the whole, FIG. 9 is a side view, FIG. FIG. 11 is a schematic side view showing a transport state. 1 ... body frame, 1A, 1B ... side frame, 15A, 15B ... support frame, 19 ... board part, 20 ... cover plate part, 26 ... roller shaft, 27, 27a ... roller, 30 ... ... transmission device, 31 ... bearing hole, 32 ... first support shaft, 35 ... sprocket, 36 ... transmission roller, 40 ... first cylinder device, 45 ... compression spring, 50
…… braking device, 51 …… second support shaft, 53 …… braking body, 54 ……
2nd cylinder device, 58: conveyance path, 60: guide device, 67: coupling device, 78: detector, 83: taper guide, 90: end face cover, 95: drive device, 96: Chain 110, first supply / discharge hose 111: second supply / discharge hose
112: Solenoid valve, 118: Bucket (transported object), 119:
... roller conveyor, 120 ... connecting member, 123 ... positioning hole, 126 ... frame cover, 127 ... positioning convex part, 130 ... convex ridge part, 131 ... concave groove part, A to N ... group .

Claims (1)

(57) [Claims] 1. A conveying path is formed between said side frames of a main body frame having a pair of left and right side frames, a connecting member is provided between ends of both side frames, and a frame cover is attached outside said connecting member. On the outer surface of the frame cover, at least one of a vertical ridge and a vertical groove is formed, and the ridge and the groove are fitted when the frame cover is opposed to each other. A conveyor with a positioning structure, characterized in that it is configured.