JPS58135005A - Conveyer system equipped with intermittently driving unit - Google Patents

Abstract

PURPOSE:To save power, by arranging a driving source in each unit to distribute driving power. CONSTITUTION:A driving unit D is constituted such that pulleys 5, 6 are provided in a paired state respectively to both front and rear ends of a mounting base 4 fixable to a frame 1 and an endless belt 7 is wound on the pulleys then shafts 8, 9 of said pulleys 5, 6 are rotatably supported by each bearing 10 provided to the base 4. When a motor 11 connected to one shaft 8 is started, its revolution drives the belt 7 through the pulley 5 to apply conveying force to a pallet 2 placed on the belt 7. Further if the motor 11 is used with a variable speed motor, the belt 7 is driven at a high or low speed by selection of the motor speed, and conveyance of th pallet 2 can be selected to a quick or gentle speed.

Description

DETAILED DESCRIPTION OF THE INVENTION Conventional chain conveyors or belt conveyors employ a single drive system using the same drive source over the entire length of the conveyor. Therefore, each pallet was always subject to driving force even if it was unnecessary, and special equipment was required to drive or stop only the required pallets.

In view of the above points, this invention does not drive the entire conveyor at once, but instead uses a single drive source for each conveyor.

By distributing the driving force as a part, you can determine the driving position and range that corresponds to the length and weight of the pallet, increase or decrease the number of units accordingly, and drive what is necessary for the work, such as barre, tip, etc. The purpose of this is to reduce power consumption by stopping those in a stopped state.

In this case, if the drive unit is configured using a variable speed motor or the like, it is possible to not only stop but also partially speed up and decelerate. It is also possible to smoothly decelerate and bring the vehicle to a quiet stop before it starts moving.

To explain the embodiment shown in the drawings below, FIG.
This is a plan view schematically showing a part of this conveyor, and (1) is a conveyor frame. (2) ld palette. (3) The pallet supports arranged inside the H frame (1) represent rollers. (D) is a drive unit for pallet (2) having a configuration as described below.
It is not limited to one side as in 1), but may be arranged on both sides, taking into account the width and weight of the pallet, or may be arranged in a zigzag pattern on the left and right sides of the housing. The spacing between the arrays is determined based on the usage condition, but for example, before the rear end of (2) comes out of the endless band of one unit, the front part of the same pallet is connected to the next unit. The intervals are such that they reach the endless belt of CD), and the pallets are conveyed one after another by transferring to the endless belt of (2) Fi. Note that the conveyor is limited to the above-mentioned type 7; for example, it may be of a type in which running rollers are provided on the underside of the pallet (2) and the conveyor is configured to slide on the orbital surface of the frame (1). Of course, Figures 2 to 4 show examples of the drive unit [F], which consists of a mounting base (4) that can be fixed to the frame (1), and a mounting base (4) that is attached to both the front and rear ends of the drive unit [F]. Pulleys (5) (6) are installed opposite each other, an endless band (7) is hung over these, and the shafts (8) (9) of the pulleys (5) (6) are installed on the mounting base (4). The water is rotatably received by each bearing (10), one of the pulley shafts (8) is connected to a motor (11) serving as a drive source, and when the motor (11) is started, the rotation causes the pulley (5 ) through the endless band (7
) to apply conveyance force to the pallet (2) placed on the endless belt. In addition, rice (-ta (1)
If 1) is a variable speed motor, the endless belt (7) can be driven at high speed or low speed by changing the speed, and the conveyance of the pallet (2) can be changed quickly or slowly.

5 to 7 show another embodiment in which a motor whose speed cannot be changed is used and the speed of the endless band (7) can be mechanically switched between high and low speeds,
Boo IJ (5) that spans the endless belt (7)
(6), one pulley (5) is equipped with a small diameter driven roller (12), and the other pulley 9 (6) is equipped with a large diameter driven roller (13) with a larger diameter. A switching lever is provided to rotate integrally with each pulley, and the lower end is attached to the mounting base (4) with a support shaft (14).
(15) is rotatably supported, and this switching lever (15) is rotatably supported.
) - At the top end there is a motor (11) and this motor (1
1), and when the switching lever (15) is tilted to one side, the transmission roller (16) is rotated by the transmission roller (16).
is in pressure contact with the small-diameter roller (12) and transmits rotation, and when tilted to the other side, the transmission roller (16) is in pressure contact with the large-diameter roller (13) and transmits rotation. In this case, if necessary, the switching lever (15) may be such that the transmission roller (16) can be positioned in a neutral state where it does not come into contact with any of the driven rollers (12) and (13). Therefore, it is preferable that the switching lever (15) be operated automatically by a high-speed/low-speed switching device or by remote control such as a push button. A pair of switching drivers (17X1B) operated by fluid operation such as electromagnetic solenoids or pneumatics are mounted on the mounting base (4), and the middle part of the switching lever (15) is moved by the actuating rod (19). are connected by, for example, a fitting relationship between the pin (20) and the binding hole, and the switching lever (1
In this invention, as described above, instead of driving the entire conveyor all at once, the driving force is distributed as each drive unit 0).
(2) Units (D) can be arranged according to the length and weight, so it is possible to partially drive and stop them as necessary, which helps save energy and allows freedom in length and width. Not only can the conveyor be easily assembled and the noise of operation can be greatly reduced, but the pallets are not connected directly to the rollers, but each is an endless belt (7).
Since the conveying force is driven through the Or, it is natural to be able to feed the pallet slowly, but it is also possible to smoothly decelerate the pallet (2) that is moving at a fast speed just before the stop position, significantly reducing the impact and stopping it quietly. /It is extremely advantageous as a stem.

[Brief explanation of drawings]

The drawings show an embodiment of a conveyor/stem equipped with an intermittent drive unit according to the present invention, and FIG. 1 is a partially schematic plan view showing an example of the conveyor. FIG. 2 is a front view showing the pallet drive unit. FIG. 3 is a plan view of the same as above. Figure 4 is a cut side view of the conveyor. FIG. 5 is a front view of a drive unit showing another embodiment. FIG. 6 is a plan view of the same as above. FIG. 7 is a cut side view of the conveyor. (1)...Conveyor frame (2)...Pallet (4)...Mounting base (s) (
6)...Pulley (7)...Endless band
(11)...Motor (13)...Large diameter driven roller (12)...Small diameter driven roller (15)...Switching lever (16) )...-...Transmission roller (17) (
18)...Switching driver (19)...Operating rod

Claims (1)

[Claims] l. A pair of pulleys are provided at both front and rear ends of a mounting base for fixing to the conveyor frame, an endless belt is stretched over these, and one of the pulleys is driven by a motor. The t4 conveyor stem is equipped with an intermittent drive unit in which a large number of valet drive units are arranged within the conveyor frame along the path of the valet, and the pallet is conveyed by transferring over the endless belt of this unit. 21. 2. A conveyor system comprising an intermittent drive unit according to claim 1, wherein a variable speed motor is used as the motor in the intermittent drive unit so that a bullet conveyed at a high speed can be smoothly decelerated. 3. Of the pair of pulleys in the intermittent drive unit, one of them is equipped with a small-diameter driven roller, and the other pulley is equipped with a large-diameter driven roller, which is also large in diameter. A transmission roller driven by a motor is provided, and when the switching lever is actuated by a high-speed/low-speed switching device and the transmission roller is brought into pressure contact with the above-mentioned small diameter roller, the endless belt is operated at high speed, and conversely, the endless belt is brought into contact with the large diameter roller. A conveyor system equipped with an intermittent drive unit according to claim 1, further comprising a bullet drive unit configured to operate the endless belt at a low speed when the belt is moved.