JPS6052045B2 - chain conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chain conveyor that transports articles obliquely upward while keeping them in a horizontal state.

When transporting goods to a high place, if a device such as an elevator is used to transport goods vertically upwards, the work of loading and unloading the goods into the elevator is required, which has the disadvantage of preventing labor savings in transporting goods. The use of a tilted conveyor has the disadvantage that the articles may tilt and slide, or the conveyor cannot be used when conveying articles that cannot be tilted. In order to eliminate these shortcomings,
A conveyor with a gentle slope may be used, but in this case, a new drawback arises in that the conveyor becomes long and requires a large amount of installation space. This invention was made in view of the above circumstances, and does not require a large amount of installation space for the conductor.
Moreover, it is an object of the present invention to provide a chain conveyor which can transport articles horizontally, and which can transport articles smoothly and reliably while simplifying the transfer means and reversing means.

An embodiment of the present invention will be described below based on the description of the drawings.

The chain conveyor 1 of the present invention has a winding between a lower delivery sprocket 3 provided at the terminal end of the delivery conveyor 2 and an upper drive sprocket 5 provided at the starting end of the delivery conveyor 4 located diagonally above the delivery conveyor 2. It is constructed by suspending a large number of loading platforms 7 that can maintain a horizontal state at appropriate intervals on two rotated chains 6.
The two chains 6 are driven by an upper drive sprocket 5 connected to a drive source (not shown) so that the upper two chains 6 are sent diagonally upward. Upper and lower guide sprockets 8 and 9 are provided for leveling two chains 6 to bridge the articles A on the loading platform 7 to the discharge conveyor 4.

The loading platform 7 is made up of two upper plates 13, 13 whose one end is fixed via an angle member 12 to a mounting shaft 11 which is rotatably supported at both ends by a two-strand chain 6 via bearings 10, 10. Become. The lower portions of the other end of the two upper plates 13 are connected and fixed by another angle member 14, and the center lower part of these two angle members 12, 14 is an inverted roller with one roller 15 rotatably fixed to the tip. They are connected and fixed by a triangular roller support plate 16.

Since the apex angle of the roller support plate 16 in contact with the mounting shaft 11 is equal to the inclination angle of the two chains 6, the two upper plates 13, 13 remain horizontal. Also, two upper plates 13,
On opposite sides of the other ends of 13, there are reversal prevention rollers 1, respectively.
7 is rotatably fixed, and on the other hand, in the middle of the upper side of the two chains 6 in the longitudinal direction, there is a loading seventh upper plate 13,1
A horizontal support guide rail 19 that guides the roller 15 to keep the chain 3 horizontal is installed parallel to the chain 6 of 2, and a return guide rail 19 is installed in the middle of the lower longitudinal direction of the two chains 6. 21 is installed parallel to the two chains 6, adjacent to the outer periphery of the upper drive sprocket 5, and on the reversed part of the loading platform 7 between the end of the horizontal support guide rail 19 and the start end of the return guide rail 21, the said loading A reversing guide rail 20 is provided to guide the reversal of the table 7, and after the roller 15 passes the end of the horizontal support guide rail 19, the support rod 18 that receives the end of the loading table 7 in the transfer direction is connected to the two chains 6. It is constructed in between. The upper end of the horizontal support guide rail 19 is horizontal near the upper guide sprocket 8, and the lower end thereof is curved toward the center of the lower delivery sprocket 3. Further, the lower end of the return guide rail 21 is also curved toward the center of the lower delivery sprocket 3, but is located outside of the horizontal support guide 19. The carrying-in and carrying-out conveyors 2 and 4 consist of two conveyors arranged at an appropriate interval, and the lower and upper ends of the two chains 6 diagonally installed between the terminal end and the starting end of the conveyor are located at a certain distance. Therefore, the article A that has been conveyed to the end of the conveyor 2 is automatically placed on the upper plates 13, 13 of the loading table 7.
The paper is transferred to the top, is sent to the upper end by two chains 6, and is automatically transferred onto the carry-out conveyor 4. In order to synchronize the timing for loading the article A onto the loading platform 7, a progressive stopper 22 is provided before the terminal end of the carry-in conveyor 2 to appropriately prevent the article A from progressing.
This stopper 22 opens and closes every time the detection device 23 provided on both sides of the two chains 6 senses the passage of the loading platform 7, and sequentially sends the articles A to the terminal end of the conveyor 2. Reference numeral 24 is a fixed stopper installed on the frame 25 of the carry-in conveyor 2, and is provided so that the article A, which has been conveyed to the terminal end of the carry-in conveyor 2, can wait for the arrival of the loading table 7.

Next, the operation of the present invention having the above configuration will be explained.

The article A conveyed by the carry-in conveyor 2 is temporarily stopped by the progressive stopper 22 before the terminal end, but when the sensing device 23 detects the passage of the loading table 7, the stopper 22 is released and the article is stopped. A is fed to the terminal end, and after being temporarily stopped by the fixed stopper 24, the two chains 6
By rising from below the carry-in conveyor 2 on a loading platform 7 suspended between them, the article A is placed on the upper plate 13 of the loading platform 7 and is transported obliquely upward together with the two chains 6. At this time, the roller 15 provided on the roller support plate 16 below the loading platform 7 runs on the horizontal support guide rail 19, and
Since the inclination angle of the chain 6 and the apex angle of the roller support plate 16 in contact with the mounting shaft 11 are equal, the upper plate 13 gradually rises diagonally upward while maintaining a horizontal state. When the two chains 6 reach the vicinity of the upper guide sprocket 8, the horizontal support guide rail 19 becomes horizontal, and as the two chains 6 advance further, the guide 19 breaks, and the loading platform 7
It rotates downward around the mounting shaft 11 due to its own weight, but since the rotation is prevented by the support rod 18 provided below the upper plate 13, it continues to advance while maintaining its horizontal state.

Since the carry-out conveyor 4 is arranged on both sides of this two-strand chain 6 which is in a horizontal state, the article A is placed on the loading table 7 and the same conveyor 4.
As the chain 6 advances further and begins to rotate the upper drive sprocket 5, the mounting shaft 11 sinks downward, so the other end of the upper plate 13 protrudes upward and pushes up the rear of the article A. The entire weight is gradually transferred onto the carry-out conveyor 4. As the two chains 6 further move around the upper drive sprocket 5, the mounting shaft 11 reaches a certain position.
The center of gravity of the loading table 7 is reversed, and the loading table 7 is reversed around the mounting shaft 11, but the two upper plates 13, 13
Since reversal prevention rollers 17, 17 are rotatably fixed to the other end, the rollers 17, 17 hit the reversing guide rail 20 and move along the rail 20.

When the two chain chains 6 advance below the upper drive sprocket 5, the rollers 15 of the roller support plate 16 transfer to the anti-feed guide rail 21 and advance along the guide rail 21, so that The plates 13, 13 are gradually transferred downward in parallel to the two chains 6.
Then, when it reaches the lower delivery sprocket 3,
The roller 15 rotates around the lower delivery sprocket 3 while being sandwiched between the curved part of the lower end of the horizontal support guide rail 19 and the curved part of the return guide rail 21, and then rotates around the loading platform 7 centered on the mounting shaft 11 again. The center of gravity of is reversed,
At a position where the two upper plates 13, 13 maintain a horizontal state, the article A waiting at the terminal end of the carry-in conveyor 2 is loaded and transferred diagonally upward. By repeating such operations, the articles A conveyed from the carry-in conveyor 2 are sequentially conveyed to the conveyor 4 located diagonally above while maintaining the horizontal state.

As is clear from the above description, according to the present invention, it is possible to eliminate unnecessary loading and unloading work as in vertically upward transporting devices such as elevators, and it is also possible to eliminate unnecessary loading and unloading work as in the case of vertically upward transporting devices such as elevators. This method does not require a large amount of installation space, and can be used to continuously transport items to high places while maintaining a horizontal state, and to load multiple items by suspending them in a rotatable manner with appropriate spacing between two chains. As the chain moves, one roller provided on the loading platform rotates on the horizontal support guide rail, so that the platform is smoothly transferred, and the platform is transferred from the horizontal support guide rail of the loading platform to the return guide rail. During reversal, the rear end of the loading platform in the transfer direction is supported by a support rod to prevent the loading platform from rotating in the reverse reversing direction. To ensure rotation, to have a simple structure as a whole, and to enable smooth transfer of a loading platform.

Furthermore, while the transfer means and reversal means of the chain conveyor can be made extremely simple, by opening and closing the progressive stopper activated by a sensing device, articles can be transferred from the carry-in conveyor to the loading platform of the chain conveyor one after another while maintaining a horizontal state. This makes it possible to introduce the article to the starting end of the discharge conveyor and further convey the article to the starting end of the discharge conveyor, thereby making it possible to reduce the initial cost as a whole and to ensure reliable conveyance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the part where articles are transferred from the carry-in conveyor to the chain conveyor of the invention, Fig. 2 is a schematic overall side view of the chain conveyor, and Fig. 3 is a view of the loading platform. 4 is a plan view, FIG. 5 is a schematic side view of the vicinity of the upper stage drive sprocket of the chain conveyor, and FIG. 6 is a schematic side view of the vicinity of the lower stage delivery sprocket of the chain conveyor. 10-I-1 Chain conveyor, 2... Loading conveyor, 3... Lower delivery sprocket, 4
...... Unloading conveyor, 5... Upper drive sprocket, 6... Chain, 7...
Loading platform, 11...Mounting shaft, 13...Top plate, 15...Roller, 17...Reversal prevention roller, 18... Support rod, 19...
Horizontal support guide rail, 20... Reversing guide rail, 21. Return guide rail, 22... Progressive stopper, 23... Sensing device, 24... Fixed stopper.

Claims (1)

[Scope of Claims] 1. A chain conveyor in which a number of loading platforms are suspended at appropriate intervals between two diagonally installed chains, in which one end of the load is rotatably supported by the two chains, and A pair of anti-reversal rollers are rotatably supported at the other end, and a rotatable roller is provided below the loading platform, and the angle between the horizontal line and the line connecting the roller and one end of the loading platform is The horizontal support guide rail and the return guide rail for guiding the rollers are provided parallel to the longitudinal direction of the two chains. A reversing guide rail for guiding the reversal of the loading platform is provided at the reversing portion between the terminal end and the starting end of the return guide rail, and a support that receives the rear end of the loading platform in the transfer direction after the roller passes the horizontal support guide rail terminal end. By installing a rod between the two chains, the loading surface of the loading platform is maintained horizontally while the loading platform is transferred from below to above the two diagonally installed chains, and the horizontal support guide rail for the rollers is When the loading platform is reversed after passing, rotation in the reverse reversing direction is prevented, and the rotation of the reversal prevention roller on the rotation guide rail is ensured, so that the loading platform is smoothly reversed. Characteristic chain conveyor. 2 A large number of loading platforms are suspended between two diagonally installed chains at appropriate intervals, one end of each loading platform is rotatably supported by two chains, and a pair of chains are attached to the other end. A reversal prevention roller is rotatably supported, and a rotatable roller is provided below the loading platform, and the angle between the horizontal line and the line connecting the roller and one end of the loading platform is determined by the angle between the two chains and the horizontal line. At the same time, the horizontal support guide rail that guides the rollers and the return guide rail are provided parallel to the longitudinal direction of the two chains, and the terminal end of the horizontal support guide rail and the start end of the return guide rail are A reversing guide rail that guides the reversal of the loading platform is provided at the reversing portion between the rollers, and after the roller passes the end of the horizontal support guide rail, a support rod that receives the rear end of the loading platform in the transfer direction is connected to the support rod using two chains. By constructing between
While maintaining the loading surface of the loading platform horizontally, the loading platform is transferred from the bottom to the top of the two diagonally installed chains, and when the loading platform is reversed after the roller passes through the horizontal support guide rail, it is moved in the opposite reversal direction. In the chain conveyor, the loading platform is smoothly reversed by preventing the rotation of the reversing prevention roller on the reversing guide rail and reliably rotating the reversing prevention roller on the reversing guide rail. An inlet conveyor consisting of a
An unloading conveyor consisting of a strip of conveyor is installed, and each time a sensing device installed on both sides of the two strips of chain detects the passage of a loading platform, a progressive stopper provided in front of the end of the loading conveyor is opened and closed. A chain conveyor characterized in that articles conveyed by an incoming conveyor are conveyed one after another to a starting end of an upwardly discharging conveyor while maintaining a horizontal state.