JP4218543B2 - Transported material sorting device - Google Patents

Description

  The present invention relates to a transported material sorting device that dispenses and sorts transported materials transported by a transport device.

Conventionally, as in Patent Document 1, for example, a sorting pin driving device is provided by attaching a plurality of sorting pins that are moved in a vertical state between rollers to a transported object that is conveyed by a roller conveyor to a drive chain. There is.
Japanese Utility Model Publication No. 63-183621

  However, in the sorting transfer of the object to be transported by the sorting pin, the object to be transported is locally pressed by the sorting pin, and therefore, the sorting object may be damaged if the sorting pin is pressed against the transported object at a high speed. Therefore, it is difficult to increase the speed, and since the guide device that moves the pin in parallel is provided, the entire device is complicated, and the object to be conveyed is long or heavy in the conveying direction. Since a falling torque is applied to the sorting pins, it is necessary to increase the strength, and the size and weight must be increased. Therefore, there is a problem that it is difficult to increase the speed as a whole.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a transported material sorting apparatus that can pay out a transported object at high speed and can be reduced in weight and size.

The invention according to claim 1 is a sorting apparatus for moving a discharge member in a transverse direction along a conveying surface of a roller conveyor device and discharging a conveyed object from the conveying surface, on both the left and right sides in the transverse direction of the conveying surface. At least two pairs of left and right ring bodies are provided below the conveyance surface at a predetermined interval in the conveyance direction, and an endless rotating body that is wound between the left and right ring bodies and is positioned between the conveyance rollers is provided. Two payout members spanned between the endless rotating bodies are arranged at equal intervals in the length direction of the endless rotating body, and the discharging member is rotated via the endless rotating body by rotationally driving the ring body . the sorting drive unit Before moving along a circular path that includes a dispensing line of the top portion above the transport rollers around a conveying roller provided, wherein in circular path, said dispensing member in the vicinity of the outlet of the left and right of one of the wheels of the transport surface In addition to providing a starting point for Square provided arrival points of the releasing member in the vicinity of the outlet of the wheel body, said intermittently driven by half the endless rotary body and configured to perform dispensing operation, in the payout line, from the starting point of the other wheel unit Between the deceleration point provided in the vicinity of the entrance, there is provided an acceleration section for accelerating the dispensing member to contact the object to be conveyed and a high-speed section for discharging the object to be conveyed at a high speed by the dispensing member, and further the deceleration A deceleration section that decelerates and stops the dispensing member from the point to the arrival point is provided, a deceleration point detector that detects the dispensing member is provided at the deceleration point, and the sorting drive device is controlled to rotate in the acceleration section and the high speed section. In addition to controlling the speed, there is provided a payout controller that decelerates the payout member based on the detection signal of the deceleration point detector in the deceleration zone .

According to a second aspect of the present invention, there is provided a stopper device for causing the stopper plate to protrude above the conveying surface between the conveying rollers by the stopper driving device and stopping the load conveyed by the conveying roller on the discharge line .

  According to a third aspect of the present invention, the ring body is reduced in diameter and arranged close to the conveying surface, the bearing member supporting the ring body is downsized, and the endless rotating body is tensioned by moving the ring body close to and away from it. An adjustable tension device is provided below the bearing member.

According to the first aspect of the present invention, the endless rotating body is provided with the payout member at equal intervals in the length direction, and the acceleration section for accelerating the payout member from the starting point in the vicinity of the exit of one of the ring bodies is provided. Thus, the discharging member is driven at a low speed to come into contact with it to accelerate the object to be conveyed, so that the impact on the object to be conveyed can be alleviated and the object to be conveyed can be prevented from being damaged and reliably discharged. Further, the delivery member can be delivered in a short time by driving the delivery member at a high speed in the high speed section. Furthermore, by decelerating the dispensing member in the deceleration zone and stopping it at the arrival point, the two dispensing members are alternately used for dispensing, reducing the stroke of the endless rotating body, and reducing the overall size and size. It has the effect of being able to. Further, since the payout member is detected at the deceleration point by the deceleration point detector and the payout member is decelerated by the payout control unit, the speed control of the payout member can be performed accurately, and an accurate payout operation can be expected.

  According to the invention described in claim 3, the sorting device can be further reduced in size and weight.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, this sorting apparatus crosses a predetermined load M, which is an object to be conveyed, at a right angle in the transverse direction of the conveyance line L1 from a conveyance line L1 composed of a roller conveyor device (conveyance device) 1. (Toward the downstream side in the transport direction) For example, the load M is sent out to the transport device (conveyor device, chute, etc.) on the left-hand payout line L2 to sort the load M.

  This sorting device is constituted by a stopper device 2 for stopping the load M conveyed by the roller conveyor device 1 and a chain drive type dispensing device 3 for the load M stopped by the stopper device 2.

  The roller conveyor apparatus 1 is supported by a pair of left and right conveyor bases 11 such that a conveying roller 12 is rotatably supported at a constant pitch, and is driven to rotate by a transmission conveying apparatus (not shown) constituted by a winding transmission mechanism composed of a chain and a sprocket, for example. The

  In the dispensing device 3, a frame-shaped base frame 21 is installed along the direction of the dispensing line L2 so as to cross the lower part of the conveyor base 11, and the conveyor base 11 of the frame-shaped base frame 21 (in the conveying direction). A horizontal drive shaft 23A is rotatably supported via a bearing (bearing member) 22A on the left side (toward the downstream side), and a driven shaft 23B is rotatably supported via a bearing (bearing member) 22B on the right side. Has been. A pair of left and right drive sprockets (ring bodies) 24A, 24A are attached to the drive shaft 23A at a predetermined interval, and a pair of left and right driven sprockets (same diameter) are attached to the driven shaft 23B corresponding to the drive sprockets 24A, 24A. Ring bodies) 24B and 24B are attached. In addition, an output shaft of a sorting drive device (electric motor) 29 with a speed reducer is connected and linked to one end of the drive shaft 23A.

  As shown in FIG. 5, the bearings 22A and 22B have a narrow width without a mounting flange in the direction perpendicular to the axis, and the sprockets 24A and 24B have a small diameter within a range that does not hinder the operation. The thing is adopted. The bearing 22B on the driven shaft 23B side has a bottom member 22c, and is formed in the flat plate portion 21a in a state where the flat plate portion 21a of the frame-like base frame 21 is sandwiched between the bearing 22B and the bottom member 22c. It is mounted in a long hole perpendicular to the axis through a bolt so that its position can be adjusted. The tension device 25 is constituted by an adjusting bolt / nut 25a mounted between the rib 21b of the frame-shaped base frame 21 and the bottom member 22c. In this way, small bearings 22A and 22B and small-diameter sprockets 24A and 24B are employed, and the adjustment bolt / nut 25a of the tension device 25 is disposed below the flat plate portion 21a, thereby preventing interference with the roller conveyor device. By avoiding this, the dispensing device 3 is reduced in size.

  Drive chains (endless rotating bodies) 26 are wound around the drive sprockets 24A and 24A and the driven sprockets 24B and 24B, respectively. The drive chain 26 located in the upper forward path is positioned between the predetermined conveying rollers 12 and the chain. The guide 30 is supported from below. The drive chain 26 is provided with two payout members 27 that are stretched over the left and right drive chains 26 at symmetrical positions at equal intervals in the length direction. As shown in FIGS. 6 and 7, the payout member 27 includes a mounting bracket 27a attached to the drive chain 26 and a cylindrical payout rod 27b connected between the left and right mounting brackets 27a. In the forward path, the dispensing rod 27b is configured to move along the dispensing line direction above the conveying surface at the top of the conveying roller 12. A detection plate 28 is attached to the predetermined mounting bracket 27 in the horizontal direction.

  As shown in FIG. 8 and FIG. 9, in the circulation path of the payout member 27 in the payout device 3, the payout member is disposed at a predetermined position on the outlet side of the driven sprocket 24 </ b> B (above the side edge of the roller conveyor transport surface) on the forward path. 27, a starting point A of the drive sprocket 24A is provided at a predetermined position on the outlet side of the drive sprocket 24A, and the drive chain 26 is intermittently driven half a turn through the sprockets 24A and 24B. It is configured to perform operations. In addition, an intermediate point B that is equidistant from the starting point A and a decelerating point C at a predetermined position on the entrance side of the drive sprocket 24A (above the side edge of the roller conveyor transport surface) is provided, and from the starting point A to the intermediate point B The acceleration section E is set, and the intermediate point B to the deceleration point C is set as the high speed section F. Further, a deceleration section G is provided from the deceleration point C to the arrival point D. A starting point A is formed on the return path from the arrival point D.

  As shown in FIG. 5, the frame-shaped base frame 21 detects the load M stopped by the stopper device 2 by the optical axis 32c formed by the light projector 32a and the light receiver 32b and crossing the transport line L1. As shown in FIGS. 6 and 7, a load detector 32 and a start point detector (corresponding to the start point A) that detects a discharge member 27 at the start point A position via the detection plate 28 ( (Proximity sensor) 33 and a deceleration point detector (proximity sensor) 34 provided corresponding to the deceleration point C and detecting the passage of the payout member 27 via the detection plate 28 are installed.

  As shown in FIG. 4, the stopper device 2 includes a lifting lever 6 supported by a support pin so as to be swingable up and down, and a stopper driving device (fluid pressure cylinder) connected to a free end portion of the lifting lever 6. 4 and a stopper plate 5 erected near the free end of the elevating lever 6 and disposed between the conveying rollers 12 on the downstream side of the frame-shaped base frame 21 so as to be movable up and down. By progressing, the stopper plate 5 can be protruded upward from the conveying surface via the elevating lever 6 and the load M conveyed by the conveying roller 12 can be stopped.

  In the above configuration, when the target load M to be sorted is transported to the transport line L1 and a sorting command for sorting the target load M is output from the central controller to the dispensing control unit 31, the stopper device 2 is first activated. The stopper plate 5 protrudes on the conveying surface, and the target load M is stopped on the sorting line L2 by the stopper plate 5. Then, when the load M is detected by the stock detector 32 and the discharge member 27 at the start point A is detected by the start point detector 33, based on these detection signals, the discharge control unit 31 sorts the drive unit 29. The actuating signal is output to start the dispensing member 27 from the starting point A. The discharging member 27 is accelerated in the acceleration section E from the starting point A to the intermediate point B, and the discharging member 27 is brought into contact with the load M in the acceleration section E in the low speed state, thereby reducing the impact on the load M and damaging it. Is prevented and is accurately locked to the load M. Then, the discharging member 27 is moved at a constant high speed in the high speed section F from the intermediate point B, and the load M is discharged from the roller conveyor device 1 to the conveying device of the discharging line L2 in a short time. Further, when the delivery member 27 detects the detection plate 28 at the deceleration point C by the deceleration point detector 34 and detects the passage of the delivery member 27, the delivery control unit 31 controls the sorting drive device 29 to decelerate from the deceleration point C. In the section G, the payout member 27 is decelerated and turned to stop at the arrival point D with high accuracy. At the same time as the load M is discharged, the stopper plate 5 of the stopper device 2 is retracted downward.

By repeating this, the target load M can be quickly sent out to the delivery line L2 for sorting.
According to the embodiment, the drive chain 26 is provided with the payout member 27 at equal intervals in the length direction, and the acceleration section E for accelerating the payout member 27 from the starting point A at the outlet of the driven sprocket 24B is provided. After the discharging member 27 is brought into contact with the load M at a low speed, the load M is accelerated, so that the impact on the load M is mitigated to prevent damage to the load M, and the discharging member 27 can reliably discharge the load M. Can do. Further, the discharging member 27 can be driven at a high speed in the high speed section F to discharge the load M in a short time. Furthermore, the payout member 27 can be decelerated in the deceleration zone G and stopped accurately at the arrival point D. The two payout members 27 can be alternately used for payout, reducing the stroke of the drive chain 26 and reducing the overall size. Can be made compact and compact.

  Further, the dispensing member 27 is detected at the deceleration point C by the deceleration point detector 34, and the dispensing control unit 31 performs the deceleration control of the sorting drive device 29 in the deceleration section G to decelerate the dispensing member 27. It is possible to control and accurately stop at the arrival point D, so that a quick and accurate dispensing operation can be performed.

  Further, the bearings 22A and 22B having a narrow width without a mounting flange are adopted, both the sprockets 24A and 24B are reduced in diameter, and the adjusting bolt / nut 25a of the tension device 25 is connected to the bottom member 22c to connect the flat plate portion 21a. By disposing at a lower part, the dispensing device 3 can be reduced in size and weight as a whole.

It is a top view which shows embodiment of the sorting apparatus which concerns on this invention. It is a side view of the sorting apparatus. It is an II arrow directional view shown in FIG. It is the II-II arrow line view shown in FIG. It is an enlarged side view of the sorting apparatus. It is the III section enlarged view shown in FIG. It is the IV section enlarged view shown in FIG. It is a side view explaining the circulation path | route of the discharge member of the sorting device. It is a graph which shows the speed change of the discharge member of the same sorter.

Explanation of symbols

L1 Conveying line L2 Dispensing line M Load A Starting point B Intermediate point C Deceleration point D Arrival point E Acceleration section F High speed section G Deceleration section 1 Roller conveyor device 2 Stopper device 3 Dispensing device 11 Conveyor base 12 Conveyor roller 21 Frame base Base frame 22A, 22B Bearing 23A Drive shaft 23B Drive shaft 24A Drive sprocket 24B Drive sprocket 25 Tension device 27 Discharge member 27a Mounting bracket 27b Discharge rod 28 Detection plate 29 Sorting drive device 31 Discharge control section 32 Load detector 33 Start point detection 34 Deceleration point detector

Claims (3)

A sorting device that moves a delivery member in a transverse direction along a conveyance surface of a roller conveyor device and dispenses an object to be conveyed from the conveyance surface,
In the right and left sides in the transverse direction of the transport surface provided at least two pairs at predetermined intervals the lower pair of left and right wheel unit from the conveying surface in the conveying direction,
Providing an endless rotating body wound between the left and right ring bodies and positioned between the conveying rollers;
Two payout members stretched between the endless rotating bodies are arranged at equal intervals in the length direction of the endless rotating body ,
The releasing member through a rotary drive to the endless rotary body said wheel body is provided with a sorting drive Before moving along a circular path that includes a dispensing line of the top portion above the transport rollers around the conveying roller,
In the circuit path, a starting point of the discharging member is provided in the vicinity of the outlet of one of the left and right ring bodies on the conveying surface, and a reaching point of the discharging member is provided in the vicinity of the outlet of the other ring body, so that the endless rotating body is It is configured to perform a payout operation by intermittently driving half a cycle,
In the payout line, between the starting point and the deceleration point provided near the entrance of the other wheel, an acceleration section for accelerating the payout member to come into contact with the transported object, and the transported object by the payout member Providing a high-speed section that pays out at high speed, and further providing a deceleration section that decelerates and stops the payout member from the deceleration point to the arrival point,
A deceleration point detector for detecting a payout member at the deceleration point;
A dispensing control unit is provided for controlling the sorting drive device to control the rotational speed in the acceleration section and the high speed section, and decelerating the dispensing member based on the detection signal of the deceleration point detector in the deceleration section. Sorting device for transported goods. 2. The conveyed product according to claim 1, further comprising a stopper device that causes the stopper plate to protrude above the conveying surface between the conveying rollers by the stopper driving device and stops the load conveyed by the conveying roller on the discharge line. Sorting device. Reduce the diameter of the ring and place it close to the transfer surface.
The bearing device for supporting the ring body is downsized, and a tension device capable of adjusting the tension of the endless rotating body by moving the ring body close to and away from the bearing body is provided at a lower portion of the bearing member. 2. The apparatus for sorting conveyed items according to 2.

Images