JPH0659330U - Article unloading drive device using movement of circulating moving loading platform - Google Patents

Abstract

(57) [Abstract] [Purpose] In an article unloading drive device that drives an endless belt of a circulating moving loading platform that loads articles and circulates by a chain, drives the endless belt without stopping the circulating moving loading platform. thing. [Structure] The article unloading drive device 42 includes a circulatory transfer loading platform 4
One driven roller 61 rotatably provided on the frame 53 of the circulating movement loading platform 41 connected to the first driving roller, and driven by being moved in the direction intersecting with the chain 52 by the cylinder 62 installed along the chain 52. Roller 6
1 and a movable body 63 that is in pressure contact with 1. When the circulating movement loading platform 41 moves to the side of the movable body 63, the movable body 63 is moved by the cylinder 62 and comes into pressure contact with the driven roller 61. The circulating movement loading platform 41 continues to move, and the driven roller 61 is rolled on the movable body 63 to move the endless belt 55 in a circulating manner. As a result, the articles on the endless belt 55 are paid out.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an article unloading drive device for driving an endless belt of a circulating movement loading platform for loading articles and circulatingly moving by a chain, for driving the endless belt without stopping the circulating movement loading platform. A device for making

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, for example, in a distribution center, when sorting products by product type or delivery destination, a product sorting device 30 shown in FIGS. 10 to 12 is used. The article sorting apparatus 30 is composed of a circulating movement loading table 20 and an article unloading drive apparatus 25.

The circulating movement loading platform 20 includes a frame 22 tiltably attached to a chain 21 that circulates, a pair of rollers 23 and 23 rotatably provided on the frame 22, and a pair of rollers 23 and 23. It has an endless belt 24 which is circulated and movably hung around 23.

The article unloading drive device 25 is a device for circulatingly moving the endless belt 24. The article unloading drive device 25 is installed at a place where articles (not shown) are sorted and dispensed, and the article unloading drive apparatus 25 is installed corresponding to a plurality of friction rollers 27 rotated by a motor 26 and each friction roller 27. The friction roller 27 includes a cylinder 28 that presses the endless belt 24 against the friction roller 27.

The article unloading drive device 25 inclines the endless belt 24 of the circulating movement loading table 20 that has moved to the delivery location by the cylinder 28 to press it against the friction roller 27, and further, by the rotational force of the friction roller 27, the endless belt 24 The belt 24 is circulated and moved so that articles (not shown) on the endless belt 24 are dispensed.

[0006]

[Problems to be solved by the device]

 However, such an article unloading drive device 25 has the following problems because the endless belt 24 is pressed against the friction roller 27 rotated by the motor 26. (1) The motor 26 is required and the structure is complicated. (2) While the endless belt 24 is pressed against the friction roller 27, the circulating movement loading platform 20 must be stopped, and cannot be used for the circulating traveling loading platform that continuously moves.

[0007]

[Means for Solving the Problems]

 The present invention relates to an article unloading drive device for loading an article on an endless belt that circulates by a pair of driving rollers provided on a frame and driving the endless belt of a circulatory moving loading platform that circulates and moves by a chain, A driven roller connected to the drive roller and rotatably provided on the frame, and a movable roller installed along the chain and moved in a direction intersecting with the chain by an operating means so as to be in pressure contact with the driven roller. A device having a body has solved the aforementioned problems.

[0008]

[Action]

 The circulating movement loading platform puts an article on an endless belt and is circulated and moved by being pulled by a chain. When the circulating movement loading platform moves to the side of the movable body, the movable body is moved by the actuating means in the direction intersecting the circulation movement direction of the chain, and comes into pressure contact with the driven roller. The circulating moving loading platform continues to move, and the driven roller is rolled on the movable body as the circulating moving loading platform moves. The rotational force of the driven roller is transmitted to the driving roller, and the driving roller circulates the endless belt on the frame. As a result, the articles on the endless belt are discharged (unloaded). In this way, the article unloading drive device uses the movement of the circulating movement loading platform to dispense the articles without stopping the circulating movement loading platform.

[0009]

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. The article sorting apparatus 40 is composed of a plurality of circulating movement loading platforms 41 and an article unloading drive apparatus 42. The circulating movement loading platform 41 includes a frame 53 attached to a chain 52 that circulates by a pair of sprockets 51, 51, and a pair of driving rollers 54, 54 rotatably mounted on the frame 53 (see FIG. 2). ), And a pair of endless belts 55 that are circulated freely and hung around the pair of drive rollers 54, 54, and an article W (see FIG. 3) is loaded on the endless belt 55 to be integrated with the chain 52. It is designed to move cyclically. Strictly speaking, one of the pair of drive rollers 54, 54 is a so-called drive (side) roller, and the other is a driven (side) roller.

The article unloading drive device 42 (see FIG. 2) has a driven roller 61 and a movable body 63. The movable body 63 is installed along the chain 52 so as to move in a direction intersecting with the chain 52 by a cylinder (actuating means) 62, and is brought into pressure contact with the driven roller 61. The driven roller 61 is rotatably provided on the frame 53 by a rotating shaft 64 oriented in the vertical direction. The rotary shaft 64 and the drive roller 54 are connected by bevel gears 65 and 66 that mesh with each other.

The movable body 63 is a long member having a U-shaped cross section in the width direction so that the driven roller 61 can be received. The movable body 63 is installed along the chain 52 and is moved by the cylinder 62 in the direction of arrow A intersecting the chain 52. A pair of inner walls (pressure contact walls) 67, 68 of the movable body 63 facing each other are selectively brought into pressure contact with the driven roller 61. As a material for at least one of the driven roller 61 and the inner walls 67, 68, for example, rubber or resin having elasticity and a large friction coefficient is used.

A deflection preventing roller 69 is rotatably provided in the middle of the rotating shaft 64 including the driven roller 61. When the movable body 63 presses the driven roller 61 and the rotating shaft 64 tries to bend, the anti-bending roller 69 is brought into contact with one of the pair of fixed walls 70 and 71 to prevent the bending.

Next, the operation will be described. The circulating movement loading platform 41 places the article W on the endless belt 55, and circulates by the chain 52. When the circulating movement loading platform 41 moves to a place where the articles W are sorted and discharged, the movable body 63 is moved by the cylinder 62 in a direction intersecting with the circulation traveling direction of the chain 52, and the driven roller 61 of the circulation traveling loading platform 41 is moved. Press against. The circulating movement loading platform 41 continues to move, and the driven roller 61 is rolled on the movable body 63 in accordance with the movement of the circulating transportation loading platform 41 to rotate the driving side of the driving rollers 54, 54. In this way, the driving rollers 54, 54 cause the endless belt 55 to circulate on the frame 53 and dispense the article W on the endless belt 55.

The circulating movement direction of the endless belt 55 is determined by which inner wall 67, 68 of the movable body 63 is pressed against the driven roller 61, as shown in FIGS. As shown in FIG. 4, when the first inner wall 67 is pressed against the driven roller 61 moving from the front side to the back side of the paper, the endless belt 55 is circularly moved in the direction of arrow B, In FIG. 4, the article W can be paid out to the left side. On the contrary, as shown in FIG. 5, when the second inner wall 68 is pressed against the driven roller 61, the endless belt 55 is circulated in the direction of arrow C, and the article W can be discharged to the right in FIG. it can.

Although the movable body 63 is formed with a pair of inner walls 67 and 68, when the articles W are to be dispensed to only one side, only the inner wall on one side may be formed.

Since the endless belt 55 is circulated and moved by the rotation of the driven roller 61, the endless belt 55 circulates and moves at a speed proportional to the moving speed of the circulatory moving loading platform 41. Therefore, the articles W are delivered quickly when the circulating movement loading platform 41 is moving fast, and are delivered late when the circulation moving loading platform 41 is moving slowly. Therefore, it is not necessary to change the design of the frontage of the sorting chute 72 (see FIG. 1) according to the moving speed of the circulating movement loading platform 41, and the articles W can be received at a constant frontage.

The article unloading drive device 42 can also circulate and move the endless belt 155 of the circulatory moving loading platform 141 as shown in FIGS. 6 and 7. The lower surface of the frame 153 of the circulating movement loading platform 141 is attached to the chain 152, and one end thereof is supported by two free wheels 173 traveling on the traveling surface 156.

Further, the article unloading drive device 42 can circulate and move the endless belt 255 of the circulatory moving loading table 241 as shown in FIGS. 8 and 9. One end of a frame 253 of the circulation moving loading platform 241 is attached to a chain 252 that horizontally moves, and the other end is supported by two free wheels 273 that travel on a traveling surface 256.

It should be noted that in the structure of each of the circulating movement loading platforms 141 and 241 shown in FIGS. 6 to 9, the same parts as the structures of the circulating movement loading platform 41 shown in FIGS. 1 to 5 are shown in FIGS. The reference numeral 5 is indicated by adding 1 or 2 to the head thereof, and the description of the structure will be omitted.

[0020]

[Effect of device]

 The article unloading drive device according to the first aspect uses the movement of the circulatory moving loading platform to cause the circulatory moving loading platform to perform the dispensing operation of the articles, and therefore has the following effects. (1) The structure which has been conventionally required becomes unnecessary and the structure is simplified. (2) It is possible to cause the circulating movement loading platform to perform the dispensing operation of the articles without stopping the circulation traveling loading platform, and improve the dispensing work efficiency. (3) Since the payout speed of the articles automatically changes according to the moving speed of the circulating movement loading platform, the goods can be discharged faster as the moving speed becomes faster. Therefore, for example, even if the frontage of the delivery chute that receives the goods is kept constant without changing according to the circulating movement speed of the circulating movement loading platform, the goods can be surely delivered to the ejection chute regardless of the movement speed. be able to. Further, as in the article unloading drive device according to claim 2, when the movable body is provided with a pair of pressure contact walls which are selectively pressure-contacted on both sides in the diametrical direction of the driven roller, the articles are selected on both sides of the circulating movement loading platform. Can be paid out.

[Brief description of drawings]

FIG. 1 is an overall schematic perspective view of an article sorting apparatus in which an article unloading drive apparatus according to an embodiment of the present invention is incorporated.

FIG. 2 is a perspective view of a circulating movement loading platform.

3 is a view of the article unloading drive device as viewed from the left side in FIG. 1. FIG.

FIG. 4 is an operation explanatory view of the article unloading drive device.

FIG. 5 is an operation explanatory view of the article unloading drive device.

FIG. 6 is an overall schematic view of another article sorting apparatus in which the article unloading drive device is incorporated.

FIG. 7 is a perspective view of a circulating movement loading platform of the article sorting apparatus in FIG.

FIG. 8 is an overall schematic view of another article sorting device in which the article unloading drive device is incorporated.

9 is a perspective view of a circulating movement loading platform of the article sorting apparatus in FIG.

FIG. 10 is an overall schematic view of an article sorting apparatus in which a conventional article unloading drive device is incorporated.

11 is a schematic view of a circulating movement loading platform and an article unloading drive device as viewed from the left side of FIG.

12 is an operation explanatory diagram of the circulating movement loading platform and the article unloading drive device of FIG. 11. FIG.

[Explanation of symbols]

 W article 41,141,241 Circulation movement loading platform 42 Article unloading drive device 52,152,252 Chain 53,153,253 Frame 54,154,254 Driving roller 55,155,255 Endless belt 61,161,261 Driven Roller 62 Cylinder (operating means) 63 Movable body 67, 68 Inner wall (pressing wall)

Claims (2)

[Scope of utility model registration request] 1. An article unloading drive device for loading an article on an endless belt that circulates by a pair of driving rollers provided on a frame and driving the endless belt of a circulatory moving loading platform that circulates by a chain. A driven roller connected to a driving roller and rotatably provided on the frame; and a movable body that is installed along the chain and is moved in a direction intersecting with the chain by an operating means so as to come into pressure contact with the driven roller. An article unloading drive device having. 2. The article unloading drive device according to claim 1, wherein the movable body has a pair of pressure contact walls that selectively contact pressure on both sides of the driven roller in a diametrical direction.