JP2589141Y2 - Article unloading drive system using the movement of the circulating mobile loading platform - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an article unloading driving device for driving an endless belt of a circulating moving loading platform, which carries articles and circulates by a chain, for unloading, and stops the circulating moving loading platform. The present invention relates to a device for driving an endless belt without any problems.

[0002]

2. Description of the Related Art Conventionally, for example, in a distribution center,
Fig. 1 when sorting goods by product type or delivery destination
0 to FIG. 12 are used. The article sorting device 30 includes a circulating moving loading platform 20 and an article unloading drive device 25.

The circulating moving loading platform 20 includes a frame 22 which is tiltably mounted on a circulating chain 21 and a pair of rollers 2 rotatably provided on the frame 22.
3 and 23, and an endless belt 24 that can be circulated and wrapped around the pair of rollers 23 and 23.

[0004] The article unloading driving device 25 includes an endless belt 24.
Is a device that circulates and moves. Article unloading drive device 25
Is installed at a place where articles (not shown) are sorted out and paid out. A plurality of friction rollers 27 rotated by a motor 26 and an endless belt 24 are pressed against the friction rollers 27 installed corresponding to the respective friction rollers 27. Cylinder 2
8 is provided.

[0005] The article unloading driving device 25 is provided with an endless belt 2 of the circulating moving loading table 20 which has moved to the payout location.
The endless belt 4 is tilted by a cylinder 28 so as to be pressed against the friction roller 27, and further, the endless belt 24 is circulated by the rotational force of the friction roller 27, and the articles (not shown) on the endless belt 24 are paid out. .

[0006]

However, such an article unloading drive device 25 has the following problems since 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 in pressure contact with the friction roller 27, the circulating transfer platform 20 must be stopped, and cannot be used for a circulating mobile platform that moves continuously.

[0007]

According to the present invention, articles are stacked on an endless belt circulating by a pair of driving rollers provided on a frame of a circulating loading platform circulating by a chain, and the endless belt is driven. In the article unloading drive device for unloading articles from the loading platform, a driven roller connected to the driving roller and rotatably provided on the frame, and the chain is operated along with the chain by an actuating means. A movable body having a pair of pressure-contact walls that are moved in a crossing direction and selectively pressed against the diametrically opposite sides of the driven roller,
The above problem has been solved.

[0008]

The circulating movement loading platform places articles on an endless belt and is circulated 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 operating means in a direction intersecting with the circulating movement direction of the chain, and pressed against the driven roller. The circulating moving loading platform continues to move, and the driven roller moves with the circulating moving loading platform,
Rolled on a movable body. The rotational force of the driven roller is transmitted to the driving roller, and the driving roller circulates and moves the endless belt on the frame. As a result, the articles on the endless belt are paid out (unloaded). In this way, the article unloading driving device pays out articles by utilizing the movement of the circulating moving loading platform without stopping the circulating moving loading platform.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The article sorting device 40 includes a plurality of circulating and moving loading platforms 41 and an article unloading driving device 42. The circulating moving loading platform 41 includes a pair of sprockets 51,
A frame 53 attached to a chain 52 circulating by 51, a pair of driving rollers 54, 54 (see FIG. 2) rotatably provided on the frame 53, and a pair of driving rollers 54, 54. It has an endless belt 55 that can be circulated and traversed, and articles W (see FIG. 3) are loaded on the endless belt 55 and circulate and move integrally with the chain 52. Strictly speaking, one of the pair of driving rollers 54 is a so-called driving (side) roller, and the other is a driven (side) roller.

The article unloading driving device 42 (see FIG. 2) has a driven roller 61 and a movable body 63. Movable body 6
3 is a chain 52 operated by a cylinder (operating means) 62.
It is installed along the chain 52 so as to move in a direction intersecting with the driven roller 61 and can be pressed against 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 rotating shaft 64 and the driving roller 54 are engaged with the bevel gear 6.
5,66.

The movable body 63 is a long member having a U-shaped cross section in the width direction so as to receive the driven roller 61. The movable body 63 is a chain 5
2 along the chain 5 by the cylinder 62
It moves in the direction of arrow A intersecting with 2.
A pair of inner walls (press-contact walls) 6 of the movable body 63 facing each other
7, 68 are selectively pressed against the driven roller 61. As a material of at least one of the driven roller 61 and the inner walls 67 and 68, for example, rubber, resin, or the like having elasticity and a large friction coefficient is used.

A deflection preventing roller 69 is rotatably provided in the middle of a rotating shaft 64 having a driven roller 61. The deflection preventing roller 69 is configured such that the movable body 63 is
When the rotating shaft 64 attempts to bend by pressing against the first member 1, the rotating shaft 64 is brought into contact with one of the pair of fixed walls 70, 71 to prevent bending.

Next, the operation will be described. Circulating moving loading platform 41
Puts the article W on the endless belt 55 and
It moves cyclically. When the circulating moving loading platform 41 moves to a place where the articles W are sorted and paid out, the movable body 63 is moved by the cylinder 62 in a direction intersecting the circulating moving direction of the chain 52, and the driven roller 61 of the circulating moving loading platform 41 is moved. Press against The circulating moving loading platform 41 continues to move, and the driven roller 61 is rolled on the movable body 63 with the movement of the circulating moving loading platform 41 to rotate the driving side of the driving rollers 54, 54. Thus, the driving roller 5
4 and 54 circulate and move the endless belt 55 on the frame 53 to pay out the articles W on the endless belt 55.

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

The movable body 63 has a pair of inner walls 67,
When the article W is paid out to only one side, only the inner wall on one side may be formed.

Since the endless belt 55 is circulated by the rotation of the driven roller 61, the endless belt 55 is circulated.
Circulates at a speed proportional to the moving speed of the vehicle. For this reason,
The article W is paid out quickly when the circulating movement loading platform 41 is moving fast, and is paid out slowly when moving slowly. Therefore, the sorting chute 72 (see FIG. 1)
There is no need to change the design of the frontage according to the moving speed of the circulating moving loading platform 41, and the article W can be received at a constant frontage.

The article unloading driving device 42 is provided with an endless belt 15 of a circulating moving loading table 141 as shown in FIGS.
5 can also be circulated. The lower surface of the frame 153 of the circulating moving loading table 141 is attached to a chain 152, and one end is supported by two universal wheels 173 running on a running surface 156.

Further, the article unloading driving device 42 is shown in FIG.
The endless belt 2 of the circulating moving loading platform 241 as shown in FIG.
55 can also be circulated. One end of a frame 253 of the circulating movement loading platform 241 is attached to a horizontally circulating chain 252, and the other end is supported by two universal wheels 273 traveling on a traveling surface 256.

In the structure of each of the circulating movable loading platforms 141 and 241 shown in FIGS. 6 to 9, the same parts as those of the circulating movable loading platform 41 shown in FIGS. 1 to 5 are shown in FIGS. 1 or 2 is added to the head of the reference numeral, and the description of the structure is omitted.

[0020]

The article unloading drive device of the present invention utilizes the movement of the circulating and moving loading platform to cause the circulating and moving loading platform to perform an operation of paying out articles, and thus has the following effects. . (1) The motor, which was conventionally required, is not required, and the structure is simplified. (2) It is possible to cause the circulating moving loading platform to perform the dispensing operation of the articles while keeping the movement without stopping the circulating moving loading platform, thereby improving the dispensing work efficiency. (3) The circulation speed of the article is automatically changed according to the moving speed of the loading platform, so that the article can be more quickly paid out as the moving speed increases. Therefore, for example, even if the width of the dispensing chute for receiving articles is kept constant without being changed in accordance with the circulating movement speed of the circulating moving loading platform, it is possible to surely dispense the articles to the dispensing chute regardless of the moving speed. Can be. (4) Since the movable body is provided with a pair of pressure-contacting walls that selectively press against the diametrically opposite sides of the driven roller, the endless belt of the circulating loading platform can be moved simply by moving the movable body forward and backward by one operating means. The articles loaded thereon can be selectively unloaded on both sides of the circulating mobile loading platform.

[Brief description of the drawings]

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

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

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

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 into which an article unloading drive device is incorporated.

FIG. 7 is a perspective view of a circulating moving loading platform of the article sorting apparatus in FIG. 6;

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

FIG. 9 is a perspective view of a circulation moving loading platform of the article sorting apparatus in FIG. 8;

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

FIG. 11 is a schematic view of the circulation moving loading platform and the article unloading driving device when FIG. 10 is viewed from the left side.

FIG. 12 is an operation explanatory view of the circulation moving loading platform and the article unloading drive device of FIG. 11;

[Explanation of symbols]

 W Article 41, 141, 241 Circulation moving loading table 42 Article unloading drive 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 (press-contact wall)

Claims (1)

(57) [Scope of request for utility model registration] Circular movement circulating by a chain.
A pair of drive rollers provided on the frame of the loading platform
Endless base circulating in the direction intersecting the chain
Described above by loading articles on the belt and driving the endless belt
In an article unloading drive device for unloading articles from a carrier , a driven roller connected to the driving roller and rotatably provided on the frame, and a direction intersecting the chain by operating means installed along the chain. The driven roller is selectively pressed on both diametrical sides of the driven roller.
An article unloading drive device utilizing movement of a circulating moving loading platform , comprising: a movable body having a pair of pressure contact walls that are in contact with each other .