JPH06127671A - Carrying device - Google Patents

Abstract

PURPOSE:To enable abnormalities in cutting, in shoe position and the like to be detected in order to relax the collision of each shoe against transfer conveyors by preventing carried articles from cutting into the transfer conveyors. CONSTITUTION:An endless carrying body 40 is provided, which is provided with a carrying surface 52 in its upper surface. Transfer conveyors 91b are provided so as to be continued for both the end sections of the carrying surface 52 of the carrying body 40 respectively. Each transfer conveyor 91b rotatably supports transfer rollers 92a and 92b by a conveyor frame 96, and also provides the conveyor frame 96 in such a way as to be freely rotatable upward by a pivot 101a. An abnormality detecting means is provided, which detects the upward rotation of the conveyor frame 96. By this constitution, the conveyor frame 96 is rotated upward around the pivot 101a so as to allow the frame to escape, when carried articles cut into the conveyor, and when each shoe hits against the conveyors from the return side. Actions such as suspension of operations and the like can be taken when the rotation of the conveyor frame 96 is detected by means of the abnormality detecting means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor for conveying an object by an endless conveyor such as a shoe sorter or a slat conveyor.

[0002]

2. Description of the Related Art Conventionally, a shoe sorter is disclosed in, for example, Japanese Patent Laid-Open No.
As described in JP-A-284530, frames are arranged on both sides, sprockets are arranged on both ends of a frame on both sides of a start end side and a terminal end side, and a chain is stretched between the sprockets on both ends. Then, between the chains on both sides, a plurality of slats that form the transport surface on the surface are installed side by side,
A switching device and a guide mechanism are provided below the conveying surface to fit the shoes that move along the slats and control the movement of the shoes.

At both ends of the start side and the end side of the frame, there are mounted means for transferring a transfer object from another transfer device or the like to a slat transfer surface or from the slat transfer surface to another transfer device or the like. A transfer conveyor is installed. This transfer conveyor is fixedly provided to the frame, and the transfer roller is continuously rotatably arranged facing the end of the conveying surface of the slat. Since the shoes fitted to the slats project from the surface of the slats, openings are provided at both sides of the transfer conveyor so that the shoes can pass through.

The plurality of slats rotate integrally with the rotation of the chains on both sides, and the shoes are brought closer to the side on the return side and are brought onto the conveying surface through the openings on the side of the transfer conveyor. Get out.

Then, the conveyed object carried in through the transfer roller on the starting end side is transferred and conveyed on the conveying surface constituted by the slats. If the conveyed product is not distributed, the shoe is conveyed without moving and is carried out through the transfer roller on the terminal side. In addition, if the transported object is sorted and transported, when the transported object reaches the sorting section of the transport device or the like that is connected to the side of the frame, the changeover device switches the advancing direction of the shoe to follow the slats. And laterally move it, and the plurality of shoes push the conveyed object to distribute it to the distribution unit.

[0006]

SUMMARY OF THE INVENTION In the conventional conveying device,
Especially when the conveyed product is a bag or the like, when the conveyed product is placed on the conveyance surface of the slat and conveyed to the end portion and transferred to the transfer roller on the end side, the conveyance front end of the conveyed product moves along with the slats. It is easy to dig under the roller. In this way, when the transported object slips under the transfer roller as well, the transported object is crushed between the transfer roller and the slat, or the transport object is firmly caught between the transfer roller and the slat, It has the problem of damaging the device.

Further, the shoe is brought close to the side of the slat on the return side. However, if the shoe is not brought close to the side surely, the shoe may collide with the lower part of the transfer roller and damage the conveying device. Have

The present invention has been made in view of the above circumstances, and it is possible to prevent the conveyed object from being firmly caught in the transfer conveyor and reduce the collision of the shoe from the return side to the transfer conveyor. Moreover, it is an object of the present invention to provide a carrying device capable of detecting an abnormal biting, an abnormal position of a shoe, and the like.

[0009]

DISCLOSURE OF THE INVENTION According to the present invention, a frame 1 disposed on both sides, a rotating body 35 disposed on both ends of the frame 1, and a rotatable body between the rotating bodies 35 are provided. An endless carrier 40 that is stretched and forms a carrier surface 52 on the upper surface, and transfer rollers 92a and 92b are arranged at both ends of the frame 1 continuously to the ends of the carrier surface 52 of the carrier 40. The transfer conveyors 91a, 91b are provided, and the transfer conveyors 91a, 91b are provided.
A conveyor frame 96, which rotatably supports the transfer rollers 92a and 92b, is provided on 1b so as to be rotatable upward with respect to the frame 1 by a spindle 101a, and the conveyor frame 96 is rotatable upward. The abnormality detection means 115 for detecting is provided.

[0010]

According to the present invention, when the conveyed object is placed on the conveying surface 52 of the conveyer 40 and conveyed to the terminal end and transferred to the transfer conveyor 91b on the terminal side, the conveyed object is, for example, a bag and its conveying tip is If something goes under the transfer conveyor 91b under the transfer body 40, the transported object is transferred to the transfer conveyor 91b.
As it goes into the lower side of b, the conveyor frame 96 is pushed up and pivots upward with the support shaft 101a as a fulcrum to escape, so that the transferred object is transferred between the transfer rollers 92a and 92b and the transfer body 40. Crush, transfer rollers 92a, 92b and carrier 40
It is possible to prevent the conveyed object from being firmly bitten between it and, and moreover, if the conveyor frame 96 rotates upward, the abnormality detecting means 11
Detect the biting abnormality in step 5 and take corrective action such as stopping the operation of the transport device.

Further, there is a shoe such as a shoe sorter which projects from the conveying surface 52 of the conveying body 40, and when the shoe comes out on the conveying surface 52 from the return side due to an abnormal position of the shoe, the shoe moves to the starting end side. Transfer roller 92a of conveyor 91a
When the shoe collides with the lower part of the transfer roller 92a, the conveyor frame 96
Since 101a is pivoted upward and escapes, the impact of a collision can be mitigated. Moreover, if the conveyor frame 96 is pivoted upward, the abnormality detection means 115 detects a shoe position abnormality, and the operation of the conveyor is performed. You can take measures against abnormalities such as stopping.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

FIG. 5 shows the entire structure of the transporting apparatus. Reference numeral 1 denotes a frame. In this frame 1, an upper frame 2 and a lower frame 3 are arranged in parallel along both sides, and the lower frame 3 has an installation surface. A plurality of lower legs 4 that support the upper frame 2 and the lower frame 3 and a plurality of intermediate legs 5 that support the upper frame 2 with respect to the lower frame 3 are mounted between the upper frame 2 and the lower frame 3. A plurality of lateral joint members 6 and 7 are connected between the space and the intermediate leg 5, respectively.

As shown in FIGS. 6 to 8, the upper and lower frames 2 and 3 are composed of an outer main body frame 11 and a chain frame 12 connected to the inside of the main body frame 11. The main body frame 11 is arranged over the entire length of the frame 1, and the chain frame 12 includes turn units 31a and 31b and a catenary unit 12 which will be described later.
It is arranged except for part 1.

The chain frame 12 is formed with a dovetail-shaped cover mounting groove portion 13 on the outer surface of the upper surface, and a rail portion 14 is formed on the inner surface of the upper surface so as to project. The rail mounting groove portion 15 is formed, and the rail mounting groove portion 16 having a substantially H-shaped dovetail cross section is formed on the side surface.

In the cover mounting groove portion 13 of the chain frame 12 of the upper frame 2, a cross section L covering the upper side of the rail portion 14 is formed.
A character-shaped chain cover 17 is detachably attached via a locking claw portion 18. On the upper surface of the rail portion 14 of the chain frame 12 of the upper and lower frames 2 and 3, traveling rails 20 made of urethane resin are provided with protruding portions 19 on both sides of the upper surface.
Of the rail mounting groove 15
To the side surface of the rail portion 14,
A guide rail 22 made of urethane resin is mounted by fitting a fitting portion 23 having a substantially H-shaped cross section on the side surface into a rail mounting groove portion 16.

In FIG. 5, turn units 31a and 31b are arranged at the start side and the end side of the frame 1 in the carrying direction. Each turn unit 31a, 31b has a lower frame 3 with a support frame 32 having a plurality of lower legs 4.
Supports the lower surface of the lower frame 3 of this support frame 32.
Bearings 33 are supported on both side portions projecting laterally from, and a rotary shaft 34 is rotatably installed between the bearings 33 on both sides. Sprocket 35 as a rotating body is fixed near both sides of the rotating shaft 34, and an operating body 63 of a shoe 61, which is composed of a pair of discs inside the sprocket 35, and which will be described later.
Guide wheels 36 for guiding the are fixedly attached. A motor 37 that rotationally drives the rotary shaft 34 is coupled to one side of the rotary shaft 34 of the turn unit 31b on the terminal side.

Between the turn units 31a and 31b at both ends,
An endless carrier 40 is provided which rotates along the upper and lower frames 2 and 3 on both sides. This carrier 40
As shown in FIG. 6 to FIG. 8, endless chains on both sides
It is composed of 41 and a plurality of slats 51.

The chain 41 has turn units 31a at both ends.
, 31b are respectively stretched between the sprockets 35 on both sides, and the ends of the pair of inner links 42 and the pair of outer links are extended.
An inner end of a pin 44 that rotatably connects the end portion of 43 is provided to project long, and a traveling roller 46 having a bearing 45 built therein is rotatably attached to the pin 44.

A plurality of slats 51 are arranged side by side between the chains 41 on both sides, and the surfaces of these slats 51 form a carrying surface 52 on which a product is carried. The slat 51 is made of aluminum and has a substantially flat surface formed by extrusion molding.The slat covers 53 are fitted to both sides of the slat 51 and the bushes 54 are press-fitted. The pin 44 is inserted and connected to the chain 41.

In the assembled state of the frame 1, the traveling roller 46 of the chain 41 is placed on the traveling rail 20 so as to be able to travel, and the slat cover 53 is arranged to face the guide rail 22.

A shoe 61 is attached to each slat 51 so as to be movable along the slat 51. The shoe 61 is made of urethane resin, for example, and is integrally formed in a substantially U-shaped cross section that fits on the front surface, the front surface, and the back surface of the slat 51, and cushioning members 62 for pressing the conveyed object are attached to both sides. There is. An actuator 63 is attached to the back of the shoe 61,
The actuation body 63 includes a pin 64 and a roller 65 rotatably attached to the pin 64.

In FIG. 5, the shoe 61 is attached to the frame 1.
A guide mechanism 71 for controlling the lateral movement of the shoe 61 with respect to the slat 51 is mounted via the actuating body 63. In this guide mechanism 71, guide members 72 for guiding the operating body 63 of the shoe 61 are arranged on the upper surfaces of the plurality of lateral joint members 6 so as to be continuous with the guide wheels 36 of the turn unit 31a on the start end side. A first switching portion 73 and a second switching portion 74, which switch the moving direction of the shoe 61 to one side or the other side, are provided continuously to the guide member 72. From the second switching portion 74, one side or the other side is provided. A guide member 75 for guiding the operating body 63 of the shoe 61 moving along the side to each guide wheel 36 of the turn unit 31b on the terminal side is provided, and a return side switching unit (not shown) is provided on the return side. I have it.

The first switching portion 73 is provided with a switching device 76 for switching the moving direction of the shoe 61 to one side or the other side on one side of the upper surface of the horizontal joint member 6 and is connected to this switching device 76. A parallel rail 77 that guides the roller 65 of the shoe 61 along one side and an inclined rail 78 that guides the roller 65 of the shoe 61 toward the other side, and guides the roller 65 of the shoe 61 along the other side on the other side. A parallel rail 79 is provided.

The second switching portion 74 is provided with switching devices 80 on both sides of the upper surface of the horizontal joint member 6, and guides the rollers 65 of the shoes 61 along the respective sides in succession to the respective switching devices 80. Parallel rail 81 and a slanted rail that guides towards the other side
82 are provided, and each inclined rail 82 is provided at the intersection of the inclined rails 82.
A movable rail mechanism 83 is arranged so that the roller 65 moves through the intersection along the rails.

In addition, the return side switching device is composed of the horizontal joint member 7
Is installed on the lower surface of the
The moving direction of 61 is switched to one side or the other side.

Transfer conveyors 91a and 91b are arranged on the end side between the upper frames 2 of the turn units 31a and 31b, continuously with the end of the carrier 40. The transfer conveyors 91a and 91b are as shown in FIGS. 1 to 4 (the transfer conveyor 91b on the terminal side is shown in the drawings,
The transfer conveyor 91a on the start end side has the same structure), a central roller group 93a composed of a plurality of transfer rollers 92a in the central area, and a side roller group composed of a plurality of transfer rollers 92b of both side areas. 93b and has a central roller group
The inner end of 93a extends to a position close to the surface of the slat 51 of the carrier 40, and an opening 94 through which the shoe 61 can pass is formed at the inner end of each side roller group 93b. .

The roller groups 93a and 93b are supported by a conveyor frame 95 fixed to the frame 1 and a conveyor frame 96 rotatable upward with respect to the conveyor frame 95.

In the conveyor frame 95, a fixed frame 97 having a substantially L-shaped cross section is disposed between the upper frames 2 on both sides, and both side plate portions 98 of the fixed frame 97 are mounted on the upper frame 2 on both sides via a mounting member 99. Is fixed to the lower surface of the chain frame 12, and a support frame 100 having a substantially U-shaped cross section is attached to both sides of the upper surface of the fixed frame 97. Two supporting shafts 101 are rotatably supported by inserting the supporting frames 100 on both sides, and the transfer rollers 92a and 92b on the outer end side of the roller groups 93a and 93b are attached to the supporting shafts 101, respectively. It is fixed.

The conveyor frame 96 is a support frame on both sides of a support shaft 101 through which the support frame 100 is inserted with respect to a support shaft 101a on the inner end side.
A pair of movable plates 102 for the central roller group 93a are rotatably attached between 100, and a pair of movable plates 103 for the side roller group 93b are rotatably attached inside each support frame 100. A plurality of support shafts 101 are rotatably supported through the movable plates 102 and 103, and the transfer rollers 92a and 92b on the inner ends of the roller groups 93a and 93b are supported on the support shafts 101.
Is stuck.

Therefore, the conveyor frame 96 is supported integrally with the plurality of transfer rollers 92a and 92b so that the inner end side is rotatable upward with the support shaft 101a as a fulcrum. In addition, the downward rotation position of the conveyor frame 96 is determined by the protrusions 10 of the support frames 100.
It is regulated by abutting on the stopper 104 provided at 0a.

Further, small-diameter free rollers 105a and 105b are installed between the inner ends of the pair of movable plates 102 and 103, respectively.
The free rollers 105a and 105b are composed of a pair of movable plates 102 and 10b.
A support shaft 106 is installed between the three, and a plurality of rollers 107 are rotatably attached to the outside of the support shaft 106.

Further, each transfer roller of the central roller group 93a
The timing pulleys 108 are fixed to the support shafts 101 on both sides of the 92a, and the timing belts 109 are alternately stretched between the timing pulleys 108 on both sides of the adjacent transfer rollers 92a so that all the transfer rollers 92a and 92b are attached. It is designed to rotate integrally.

Then, a timing belt 112 is stretched between the timing pulley 108 of the support shaft 101 on the outer end side and the timing pulley 111 attached to the rotation shaft of the motor 110, and all the transfer is carried out by the rotation drive of the motor 110. Rollers 92a, 92
b is driven to rotate. The motor 110 is attached to a fixed frame 113 that is installed between the intermediate legs 5.

Further, the proximity switch 115 is provided as an abnormality detecting means for detecting the upward rotation of the conveyor frame 96. The proximity switch 115 is attached to the fixed frame 97 by the bracket 116 and the upper end detecting portion is fixed. Frame 97
And the movable plate 103 through the window holes 97a and 100b of the support frame 100.
Underneath. In addition, a substantially L-shaped detection piece 117 is attached to the movable plate 103 at a position facing the proximity switch 115 in the horizontal direction. Then, when the conveyor frame 96 is horizontal, the detection piece 117 closely faces the proximity switch 115,
Proximity switch 115 is on and the conveyor frame is
When the 96 is rotated upwards, the detection piece 117 moves to the proximity switch 115.
Then, the proximity switch 115 is turned off.

The ON / OFF signal of the proximity switch 115 is sent to a control means (not shown). And the control means
The input of the ON signal allows the operation of the motor 37, and if the OFF signal is input during the operation, the operation is stopped.

A catenary unit 121 is arranged on the lower frame 3 on both sides.
1, the chain frame 12 is not provided, the chain 41 and the slats 51 are slackened by their own weight, and the extension of the chain 41 is absorbed.

Further, as shown in FIG. 5, a carry-in conveyor (not shown) is continuously provided at the start end of the frame 1, and a carry-out conveyor (not shown) is continuously provided at the end of the frame 1. In the section, sorting conveyors 131 are connected to the other side of the first switching section 93 and both sides of the second switching section 94, respectively. Note that these sorting conveyors 131
7 is a roller conveyor having a plurality of rollers 132, and an end of a frame 133 supporting the rollers 132 is connected to the main body frame 11 of the upper frame 2 as shown in FIGS.
It is bolted on.

Next, the operation of this embodiment will be described.

With the rotation of the chains 41 on both sides, the plurality of slats 51 are integrally rotated, and the shoe 61 is brought closer to one side or the other side by the return side switching portion, and the turn unit on the start end side is formed. It advances onto the transport surface 52 through 31a.

The article carried in from the carry-in conveyor is carried on the carrying surface 52 composed of a plurality of slats 51.

For a conveyed product which is not distributed and conveyed, the shoe 61 is moved along one side or the other side of the frame 1, and the conveyed product is conveyed to the terminal end while being placed on the slat 51 and conveyed to the carry-out conveyor. .

For the conveyed goods to be sorted and conveyed, the moving direction of the plurality of shoes 61 in the section on which the conveyed goods are placed is changed by the first switching portion 73 or the second switching portion 74. It is moved to the side and sent to the sorting conveyor 131.

In the carrying device thus constructed,
When the conveyed object is placed on the conveying surface 52 of the slat 51 and conveyed to the terminal end and transferred to the transfer conveyor 91b on the terminal side, the conveyed object is, for example, a bag, and the conveying front end thereof together with the slat 51 is transferred to the transfer conveyor 91b. In the event that the transported object also slips into the lower side, when the conveyed object also slips into the lower side of the transfer conveyor 91b, the conveyor frame 96 is pushed up and pivots upward with the support shaft 101a as a fulcrum. Therefore, the transfer roller 92
It is possible to prevent the conveyed object from being crushed between the a and 92b and the slat 51, and to prevent the conveyed object from being firmly caught between the transfer rollers 92a and 92b and the slat 51. Moreover, if the conveyor frame 96 rotates upward, the proximity switch 115 can detect a bite abnormality and immediately stop the operation of the transfer device, thus ensuring safety.

The shoe 61 is brought closer to the side of the slat 51 on the return side, and the transfer conveyor 91a on the starting end side.
When the shoe 61 is not reliably brought to the side portion through the opening 94, the shoe 61 collides with the lower portion of the transfer roller 92a of the central roller group 93a. At this time, even if the shoe 61 collides with the lower portion of the transfer roller 92a, the conveyor frame 96 pivots upward with the support shaft 101a as a fulcrum and escapes, so that the impact can be mitigated and the conveyor frame 96 is By pivoting upward, the proximity switch 115 can detect a shoe position abnormality and immediately stop the operation of the transport device, thus ensuring safety.

[0046]

According to the present invention, when a conveyed object is placed on the conveying surface of a conveyer and conveyed to the terminal end and transferred to the transfer conveyor on the terminal side, the conveyed object is, for example, a bag, and the conveying front end thereof. In the event that the carrier goes under the transfer conveyor together with the carrier, when the transferred object also slips under the transfer conveyor, the conveyor frame is pushed up and rotates upward with the spindle as the fulcrum. Since it moves and escapes, it is possible to prevent crushing of the conveyed product between the transfer roller and the conveyor, and to firmly pinch the conveyed product between the transfer roller and the conveyor. If it is turned to, the abnormality detecting means can detect the bite abnormality, and the abnormality can be dealt with, such as stopping the operation of the conveying device, and the safety can be secured.

Further, there is a shoe such as a shoe sorter which projects from the conveying surface of the conveying body, and when the shoe comes out on the conveying surface from the return side due to an abnormal position of the shoe, the shoe is mounted on the transfer conveyor on the starting end side. If the shoe collides with the lower part of the transfer roller, even if the shoe collides with the lower part of the transfer roller, the conveyor frame rotates upward with the fulcrum as a fulcrum and escapes. Moreover, if the conveyor frame rotates upward, the abnormality detecting means detects an abnormality in the shoe position, and the abnormality can be dealt with, such as stopping the operation of the conveying device, thus ensuring safety.

[Brief description of drawings]

FIG. 1 is a side view of a transfer conveyor showing an embodiment of a transfer device of the present invention.

FIG. 2 is a sectional view of a transfer conveyor according to the above embodiment.

FIG. 3 is a front view of the transfer conveyor according to the embodiment.

FIG. 4 is a plan view of the transfer conveyor according to the embodiment.

FIG. 5 is a perspective view of the entire conveying device of the above embodiment.

FIG. 6 is a perspective view of a slat portion of the embodiment.

FIG. 7 is a cross-sectional view of one side portion of the frame of the above embodiment.

FIG. 8 is an enlarged cross-sectional view of one side portion of the frame of the above embodiment.

[Explanation of symbols]

 1 frame 35 sprocket as a rotating body 40 carrier 52 carrier surfaces 91a and 91b transfer conveyors 92a and 92b transfer rollers 96 conveyor frame 101a spindle 115 proximity switch as means for detecting abnormality

Claims (1)

[Claims] 1. A frame disposed on both sides, a rotating body disposed on both ends of the frame, and an endless member which is rotatably stretched between the rotating bodies and constitutes a conveying surface on an upper surface. -Shaped carrier, and a transfer conveyor having transfer rollers arranged at both ends of the frame at the end of the transfer surface of the transfer body, and the transfer conveyor includes the transfer rollers. A conveyor device characterized in that a rotatably supported conveyor frame is rotatably provided above a frame by a support shaft, and an abnormality detecting means for detecting an upward rotation of the conveyor frame is provided. .