JPS6410405B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is located in the middle of a transfer conveyor, and when the transported articles are stored, it is necessary to align them individually without causing damage or deformation. This invention relates to a roller conveyor for transporting articles that can be stocked.

BACKGROUND TECHNOLOGY A conventional conveyor for storing articles has a large number of rollers arranged in parallel, and by rotating each of these rollers constantly or intermittently, the articles on the rollers are moved. There are roller conveyors in which articles are positioned by stoppers and stored on rollers. In the case of this type of roller conveyor, when the number of articles to be stored increases, the rollers and the bottom surfaces of the articles come into contact with each other and slip, and as the stock area increases, pressure increases between the articles. When there is no place for the pressure to escape, items overlap each other and form bridges, falling back and forth, creating clusters of many items piled up all over the place. This method has the disadvantage that it cannot be applied to items that require alignment as single items.

Problems to be Solved by the Invention The present invention eliminates the above-mentioned drawbacks and alleviates the pressure of crowding of articles and collisions between articles when the articles are moved on the rollers of a transport roller conveyor. The purpose is to provide a means.

Means for Solving the Problems The present invention provides a conveying roller conveyor in which a plurality of rollers are rotatably arranged in parallel. A chain is provided, contact bodies for the rollers are disposed on the upper chain at predetermined intervals, and contact bodies are disposed on the lower chain at a position corresponding to the middle of the spacing between the contact bodies, so that both chains are identical. According to the movement in the direction, one chain drives the roller to rotate in the normal direction, and the other chain drives the roller to rotate in the reverse direction.

Function As one chain moves, the rollers are sequentially rotated in the normal direction to convey the article placed on the rollers rotating in the normal direction, and as the other chain moves, the rollers between the normal rotation rollers are conveyed. By sequentially reversing the rollers and sending the articles placed on the rollers reversed, it is possible to relieve the pressure caused by the crowding of articles and the accumulation and collision of articles.

Example An embodiment of the present invention will be described.

Reference numeral 1 denotes a transfer conveyor that transfers articles 2, and this transfer conveyor 1 includes a driving roller 3 and a driven roller 4.
and a conveyor belt 5, and the article 2 moves in the direction of the arrow. 6 is a conveyor roller conveyor, and a roller shaft 9 is connected to a nut 1 between side plates 7 and 8.
0, and a bearing 11 is attached to this roller shaft 9.
A roller 13 is pivotally attached via a collar 12. The hard rubber 14 is attached to the roller 13 at the edge 13A.
It is fixed to. 15 is a press-fitting rubber presser. The roller 13 is determined by the size of the article 2 and the quantity to be stored.

Above and below the transport roller conveyor 6, upper and lower drive devices 16 and 17 are provided for giving rotation to the rollers 13 along the arrangement direction of the rollers 13.
has been established. The drive devices 16, 17 have upper and lower chain rails 20, 21 fixed to the side plates between a drive sprocket 18 and a driven sprocket 19 at an appropriate distance. Upper and lower chains 22 and 23 are stretched along the upper and lower chain rails 20 and 21, and elastic bodies 24 such as hard rubber are fixed to the upper chains 22 at equal intervals. An elastic body 25 made of hard rubber or the like is fixed to the lower chain 23 at an intermediate position equally spaced from the elastic body 24 of the upper chain 22.

When the drive sprocket 18 is rotated by a motor or the like and the chains 22 and 23 move along the upper and lower chain rails 20 and 21, the chain 2
The elastic bodies 24 and 25 fixed to the rollers 2 and 23 move, and the elastic bodies 24 and 25 contact the hard rubber 14 on the edge 13A of the roller 13, causing the roller 13 to rotate forward and reverse, respectively. .

The elastic bodies 24 and 25 are located at the edge portion 13A of the roller 13.
Desirably, the edge portion 13A of the roller 13 contacts the hard rubber 14 fixed to the roller 13, and the center portion 13B must be secured as a passage for the article 2 to be conveyed. 26 is an exit conveyor, and this exit conveyor 26 has a belt 29 stretched between rollers 27 and 28, and is a conveyor by which the article 2 sent out from the tip of the transport roller conveyor 6 is transferred to another process.

To explain the function of the transport roller conveyor 6, the article 2 transported by the transport conveyor 1 is
First, it is delivered to rollers 13 which are close to the transfer conveyor 1. Since the rollers 13 are normally stationary, the articles 2 delivered from the transfer conveyor 1 accumulate on the rollers 13. Upper and lower drive devices 16, 17
The rotation of the drive sprocket 18 causes the chains 22, 2 to move along the upper and lower chain rails 20, 21.
When the upper and lower elastic bodies 24 and 25 fixed to the roller 3 come close to contact the edge 13A of the roller 13, a forward rotational force or a reverse rotational force is applied to the roller 13, causing the roller 13 to rotate. Since the elastic bodies 24 and 25 move as shown by the arrows, the rollers 13 arranged in parallel rotate one after another. However, elastic body 2
4 and 25 are not continuously fixed to the chains 22 and 23, but are provided at predetermined locations at appropriate intervals according to the size and quantity of the articles 2, so that the articles 2 and 25 can be attached to the chains 22 and 23 as shown in FIG. 2 are intermittently conveyed while forming a group, and are stored on the rollers 13 of the conveyance roller conveyor 6 at the joint between the conveyance roller conveyor 6 and the exit conveyor 26. Item 2 being in stock status means:
When it is necessary to temporarily stop the exit conveyor 26 due to a malfunction, product replacement, parts supply, etc. in front of the exit conveyor 26, the roller 1
The articles 2 are stored on the roller 13, and the stock amount increases gradually over time. However, since the elastic body 25 fixed to the chain 23 at the bottom intermittently contacts the lower part of the roller 13 and reverses the rotation, the articles 2 are The pressure on the articles 2 is relieved, and the articles 2 are intermittently conveyed while being aligned individually without being damaged or deformed. Sent by movement. In this embodiment, the rollers 13 are rotated forward or reverse from the top and bottom of the conveyor roller conveyor 6, but they may be rotated forward or reverse at both ends of the roller 13, respectively. Further, the drive devices 16 and 17 can be provided with a sensor on the transport roller conveyor 6, and the drive can be started or stopped by the sensor.

Effects of the Invention As described above, according to the present invention, the articles supplied from the transfer conveyor to the conveyor roller conveyor are intermittently conveyed on the rollers, and even when the stock amount increases, the articles are not damaged or deformed. Without,
It has great industrial value because it allows single items to be arranged in good order, to be safely stocked without imposing an unreasonable load on the items, and to be sent toward the exit conveyor.

[Brief explanation of drawings]

FIG. 1 is a front view of main parts showing an embodiment of the present invention;
Fig. 2 is a plan view of the main part, Fig. 3 is a sectional view taken along line A-A in Fig. 1, Fig. 4 is a plan view of the main part showing the relationship between the chain and the elastic body, and Fig. 5 is the chain rail. FIG. 3 is a cross-sectional view of main parts showing the relationship between the chain and the elastic body. 1 is a transport conveyor, 2 is an article, 3 is a drive roller, 4 is a driven roller, 5 is a conveyor belt, 6 is a transport roller conveyor, 7 and 8 are side plates, 9 is a roller shaft, 10 is a nut, 11 is a bearing, 12 is a collar, 13 is a roller, 13A is an edge portion, 13B is a center portion, 14 is a hard rubber, 15 is a press fit rubber, 16 and 17 are a drive device, 18 is a drive sprocket, 19 is a driven sprocket, 20 and 21 are Chain rail, 22, 23 are chain, 24, 2
5 is an elastic body, 26 is an exit conveyor, 27 and 28 are rollers, and 29 is a belt.

Claims (1)

[Claims] 1. In a transport roller conveyor in which a plurality of rollers are rotatably arranged in parallel, a pair of chains are provided above and below the rollers and stretched between sprockets along the direction in which the rollers are arranged, and the upper chain has a predetermined chain. By disposing contact bodies for the rollers at intervals, and by disposing a contact body on the lower chain at a position corresponding to the middle of the interval between the contact bodies, by moving both chains in the same direction, one chain A roller conveyor for transporting articles, characterized in that a roller is driven to rotate in the normal direction, and the other chain drives the roller to rotate in the reverse direction.