JPH04338031A - Stock feeder - Google Patents

Abstract

PURPOSE:To easily divide many kinds of plates by a fork lift or a crane after they are stacked by providing a device for inserting stocks between the stacked plates upon change of the kind of plates. CONSTITUTION:Two stocks 1 placed in the outside of the operating range of a loader for stacking plates are clamped by two clampers 17. The clampers 17 are moved and positioned at optimum positions relative to the length of the stacked plates so that the stocks are carried and mounted on the stacked plates. Accordingly, the stocks can be fed onto the stacked plates without stopping the loader, so that an operating rate is improved. Since an operator does not enter the operating range of the loader, the stocks can be safely fed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION Many different types of printing plates are carried out from the manufacturing process and flow on the same conveyor. In order to transport the plates to the next process, they are piled up using a loading machine or the like, and a large number of products are transported at once using a forklift, crane, or the like. To transport the plates with a forklift or crane, it is necessary to use a special pallet to pass the nails or wires under the plates, or to place a rootstock that is thicker than the nails under the plates.

[0002] As shown in FIG. 1, the piled up products can be separated into different types even after being removed at once by a forklift or crane by inserting rootstocks (sleepers) for each type. Figure 2: When multiple varieties are piled up without supplying rootstocks,
Although it is possible to take out the products all at once using a forklift or crane, it is no longer possible to separate the products after that. For this reason, as shown in Figure 3, when a pile is divided by type, the division of the types is done before dispensing, but for this reason the dispensing with a forklift, crane, etc. must be made back and forth as many times as the number of the types. The disadvantage is that you have to do it.

[0003] In order to eliminate this drawback, it is necessary to supply rootstocks between different varieties as described above.

0004

[Prior Art] Conventionally, in order to place a rootstock at a place where plates are piled up by a loading machine, the loading machine is stopped, and then the rootstock is placed on top of the plates by hand. After the loader was moved out of the operating range of the loader, the loader was operated again and the process of stacking plates was repeated.

[0005]

[Problem to be solved by the invention] The loading machine that piles up plate materials is an industrial robot, so the machine must be stopped in order for a person to enter the machine and place the stock. The loading machine stops while the worker places the rootstock and evacuates. For this reason, there is a drawback that the operating rate of the loading machine becomes poor. An object of the present invention is to provide a device for feeding rootstock without stopping the loader.

[0006]

SUMMARY OF THE INVENTION The present invention is a rootstock feeder and a rootstock feeder and stacker. That is, 1. It has two clamp devices that grip the rootstock by opening and closing the claws using a drive device, and the two clamp devices are placed on a frame that can be set to any position using a separate drive device, and the frame is raised and lowered. and a rootstock supplying machine that supplies rootstock by placing it on a cart having a mechanism for moving it in the lateral direction.

2. It has a conveyor that conveys the plate and a measuring device that measures the length during conveyance, and has the same specifications as the measuring device.
The conveyor is equipped with a conveyor that is equipped with a plate center stop device that stops the conveyor at the point where the length of 2 is measured, and the plates are lifted from above by clamping both sides, and the plates are conveyed to the next conveyor and brought down. A rootstock supplying and stacking device which incorporates the rootstock supplying machine according to claim 1 into a plate stacking device that performs this. It is.

In order to describe the details of the present invention, operations for stacking plates and supplying scripts using the apparatus of the present invention will be explained below with reference to the drawings. As shown in FIG. 4, the plate material is transported by the transport conveyor and stopped at the center of the loading machine. As shown in FIG. 5, the loading machine descends, and as shown in FIG. 6, the claws 8 of the loading machine close and grasp the plate material.

As shown in FIG. 7, the machine rises while holding the plate material,
The machine travels to the plate stacking position as shown in FIG. 8, and lowers the plates in FIG. At this time, the rootstock feeder descends and grabs the rootstock that has been placed on the rootstock table in advance. Figure 10
As shown in the figure, the loading machine opens its claws and stacks the plates. At this time, the rootstock feeder ascends while grasping the rootstock. As shown in Figure 11, the loader rises to return to its original position. At this time, the rootstock supply machine is on standby. As shown in FIG. 12, the loading machine travels and returns to the original conveyor. The rootstock feeder runs over the pile of plates and stops. Figure 1
As shown in 3, the loading machine waits until the next plate material is brought in.
The rootstock feeder descends, places the rootstock on top of the pile of plates, and releases the rootstock. As shown in FIG. 14, the rootstock feeder rises to return to its original position. As shown in FIG. 15, the rootstock feeder travels to the rootstock placement table, stops, and prepares to grab the next rootstock. Meanwhile, the loader descends to grab the next centrally stopped plate. By repeating the above operations, plates can be piled up and a rootstock can be supplied between them without stopping the loading machine.

Next, the operating mechanism of the rootstock supplying machine of the present invention will be explained. FIG. 4 shows the positional relationship between the loading machine and the rootstock supply machine. FIG. 16 is a detailed diagram of the rootstock supply machine. The rootstock feeder has two clamp positions with chucking claws that are opened and closed by air cylinders, and is attached to the clamp attachment frame via a movable LM guide. A ball screw 1 that can be driven by a drive motor is mounted on the clamp mounting frame, and a ball screw 2 is connected to the clamp mounting frame by a coupling. One clamp device is attached to each ball screw. Ball screw 1 and ball screw 2
Since the screws have opposite threads, rotating the ball screw causes the clamp devices to move in opposite directions. A rotary encoder is attached to the end of the ball screw on the opposite side of the frame to which the drive motor is attached, and by detecting the amount of rotation of the ball screw, the position of the clamp device can be detected.

[0011] The clamp mounting frame to which these above-mentioned components are attached is connected to a lifting cylinder mounted on a movable carriage. The mobile cart has wheels attached to it, and is configured to be able to move by being driven by a travel motor. This makes it possible to grasp the rootstock and supply it onto the piled up plates. Also, this rootstock feeder is shown in Figure 1.
As shown in 6, by placing several rootstocks 1 symmetrically on the rootstock placement table (four on each side in this figure), rootstocks are supplied sequentially from the center, and all rootstocks are used. The structure is such that it is sufficient to supply rootstock until the plant is grown.

As shown in FIG. 17, while the plate material is being conveyed to the loading machine, the total length of the plate material is measured by a length detection roller incorporating a rotary encoder, which is installed directly below the loading machine. In addition, when 1/2 of the length of the plate material was detected using the central stop detection roller with the same specifications as the length detection roller,
By stopping the transport conveyor, the plates can always be picked up by the loading machine in a centrally distributed manner, so that the plates are piled up in a longitudinally centrally distributed state.

On the other hand, when placing rootstocks on a pile of plates, the rootstock feeder adjusts the rootstock spacing to the optimal rootstock spacing L for the plate length, as shown in FIG. 18, based on the measured plate length data. You can set up and place the rootstock.

[0014]

[Effects of the Invention] By using the rootstock supplying machine of the present invention, rootstock can be supplied without stopping the loading machine.
The operating rate increased and production volume was increased. Additionally, since humans are no longer allowed to enter the operating range of the loader, rootstock can now be safely supplied.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing how when rootstocks are supplied and piled up for each type, the piled up is taken out at once and further divided for each type.

FIG. 2 is an explanatory diagram when a variety of varieties are piled up without supplying rootstocks.

FIG. 3 is an explanatory diagram when piles are divided by variety without supplying rootstocks.

FIG. 4 is a layout diagram of a conveyor, a loading machine, a rootstock supply device, and a payout machine.

FIG. 5 is a layout diagram of the conveyor and the loading machine (rootstock supply device and unloading machine) showing the state in which the loading machine is lowered.

[Fig. 6] A conveyor showing a state in which the loading machine claw is closed.
Layout diagram of the loading machine (rootstock supply device and unloading machine).

FIG. 7 is a layout diagram of a conveyor and a loading machine (rootstock supply device and unloading machine) showing a state where the plate material is lifted while gripping it.

FIG. 8 is a layout diagram of the conveyor loading machine (rootstock supply device and payout machine) showing a state in which the conveyor has traveled to a plate stacking position.

FIG. 9 is a layout diagram of a conveyor and a loading machine (rootstock supply device and payout machine) showing a state in which the plate material is lowered.

FIG. 10 is a delivery diagram of the conveyor and the loading machine (rootstock supply device and unloading machine) showing a state in which the claws of the loading machine are opened and plates are piled up.

[Fig. 11] A conveyor showing a state in which the loading machine is raised.
Layout diagram of the loading machine (rootstock supply device and unloading machine).

[Figure 12] Conveyor and loading machine (rootstock supply device and unloading machine) showing the state in which the loading machine has returned to its original state on the conveyor.
Layout diagram.

FIG. 13 is a layout diagram of a conveyor and a loading machine (rootstock supply device and payout machine) showing a state in which the rootstock supply device is lowered.

FIG. 14 is a layout diagram of a conveyor and a loading machine (rootstock supply device and payout machine) showing a state in which the rootstock supply device is raised.

FIG. 15 is a layout diagram of a conveyor and a loading machine (rootstock supply device and unloading machine) showing a state in which the rootstock supply machine has traveled to the rootstock placement table and stopped.

FIG. 16 is an overall view of the rootstock supply machine.

FIG. 17 is a layout diagram of a loading machine and a conveyor.

FIG. 18 is a diagram illustrating a pile of plate materials and the optimum rootstock spacing.

[Explanation of symbols]

1 Rootstock 2 Plate material 3 Loading machine 4 Rootstock supply device 5 Conveyor 6 Rootstock table 7 Traveling frame 8 Loader claw 9 Travel motor 10 Lifting cylinder 11 Mobile trolley 12 Running wheels 13 Drive motor 14 Ball screw 15 Coupling 16 Air cylinder 17 LM Guide 18 Rootstock chucking claw 19 Rotary encoder 20 Clamp mounting frame 21 Length detection roller 22 Central stop detection roller L Optimal rootstock spacing

Claims (2)

[Claims] Claim 1: A frame comprising two clamp devices that grip the rootstock by opening and closing claws using a drive device, and the two clamp devices can be set at arbitrary positions using a separate drive device. A rootstock feeder is characterized in that the rootstock is supplied by placing the rootstock on a trolley having a mechanism for raising and lowering the frame and moving it laterally. Claim 2: A conveyor that conveys the plate and a measuring device that measures the length during conveyance, and has the same specifications as the measuring device.
The conveyor is equipped with a conveyor that is equipped with a plate center stop device that stops the conveyor at the point where the length of 2 is measured, and the plates are lifted from above by clamping both sides, and the plates are conveyed to the next conveyor and brought down. A rootstock supplying and stacking device which incorporates the rootstock supplying machine according to claim 1 into a plate stacking device that performs this.