JPS6315227Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a picking device that picks up an arbitrary number of objects to be transported arranged on a pallet.

That is, the present invention includes a pallet for supporting objects to be conveyed in an aligned state, a lift device having a pulling means for pulling in the pallets, a lift for raising and lowering only the objects to be conveyed on the pallet, and a lift device having a drive means above the lift device. A traveling frame that is freely movable, a fork that is supported by the traveling frame and can hold objects to be transported on a lift in a raised position, and a fork that has a detector that detects the number of objects to be transported on a lift in a raised position. It is characterized by consisting of a device.

According to this configuration, any number of objects to be transported on the pallet can be picked up.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. 1 is a pallet that supports bars (an example of objects to be transported) 2 in an aligned state, and a rectangular frame 3
It consists of a pair of left and right support parts 4 supported by the frame part 3, and a plurality of chevron-shaped protrusions 4a are provided on the upper surface of each support part 4 for aligning the bars 2. An engaging protrusion 4b that can be engaged with the chain is provided on the lower surface of the portion 4. Reference numeral 5 designates a first chain conveyor having a chain 6 that engages with the engagement protrusion 4b, and is used to transport the pallet 1 to a lift device to be described later. 7 is a lift device that pulls in and holds the pallet 1 sent by the first chain conveyor 5, and lifts and lowers only the bar 2 on the pallet 1;
It is comprised of a second chain conveyor (drawing means) 8 that pulls the bar 2 onto the apparatus 7, and a lift 9 that raises and lowers only the bar 2 on the pallet 1 at a predetermined height. The lift 9 has a base 10.
A pair of left and right lift bodies 13 are guided to be raised and lowered by a plurality of guide rollers 12 supported by an upper frame 11, and have chevron-shaped protrusions 13a similar to the pallet support part 4 at their upper ends; , 13, and a cylinder device 15 that is connected to connecting rods 14 of , 13 to raise and lower the lift main body 13 at a predetermined height. The lift main body 13 is provided at a different position from the pallet support part 4, for example, at a position inside both pallet support parts 4, 4. 16 is a support frame of the second chain conveyor 8, and 17 is a guide bar provided outside the support frame 16 for guiding the pallet 1 when it is drawn into the apparatus 7. Further, the support frame 16 is provided with clamps 18 on the left and right sides to hold the pallet 1 that has been drawn in.
Reference numeral 19 denotes a fork device that holds an arbitrary number of bars 2 held in alignment on the lift main body 13. This fork device 19 is attached to a gate-shaped frame 20 erected so as to straddle the lift device 7, and is mounted on the lift device 7 and pallet 1 via wheels 21.
a traveling frame 22 supported movably in the feeding direction; a driving means 23 for reciprocating the traveling frame 22 over a predetermined range; A chevron-shaped protrusion 24 that is provided to hang down and that can hold the bar 2 in an aligned state.
A pair of left and right L-shaped forks 2 each having a
4, and the drive means 23 includes bearings 25 on the portal frame 20, respectively.
A pair of left and right screw shafts 26 supported via
, a screw nut 27 screwed onto each screw shaft 26 and fixed to the running frame 22 , and an electric motor 30 for rotationally driving each screw shaft 26 through a sprocket 28 and a chain 29 . There is. Further, the fork device 19 is equipped with a number detector 31 so that any number of bars 2 on the lift 9 can be held. That is, an arm 32 is provided protruding from the side of the one fork 24, and a light projector 31A and a light receiver 31B are provided at the top and bottom positions corresponding to the end of the bar 2 on the lift 9 at the tip of the arm 32. . The detector 31 is also connected to a counter (not shown), and the electric motor 30 is stopped by the counter.

Next, the bar transfer operation will be explained.
First, the pallet 1 holding the bars 2 in an aligned state on the support part 4 is fed onto the lift device 7 by the first chain conveyor 5, and is then transferred to the lift 9 by the second chain conveyor 8 of the lift device 7.
After being pulled upwards, it is held by the clamp 18. Next, actuate the cylinder device 15,
The lift 9 is raised to raise only the bar 2 on the pallet 1 to a predetermined height, that is, to a position above the chevron-shaped protrusion 24a of the fork 24. Next, the electric motor 30 of the fork device 19 is driven, and the fork 24
Move the tip of the bar under the bar 2. At this time, the number of bars 2 is detected by the number detector 31 as the fork 24 moves, but when the number of bars 2 has passed by the number set in advance by the counter,
A stop signal is issued from the counter to the electric motor 30, and the fork 24 is stopped. Then, when the lift 9 is lowered in this state, a predetermined number of bars 2 are held on the fork 24. Then, the electric motor 30 is driven again, and the fork 24 is moved to the transport cart 33 on the opposite side of the first chain conveyor 5.
The bar 2 on the fork 24 is moved onto the carrier 33 by a receiving device (not shown) such as a fork provided on the carrier 33 . Therefore, according to the above-mentioned picking device, it is possible to pick up any number of bars on the pallet while keeping them aligned.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a perspective view of the pallet, Fig. 2 is an overall front view, and Fig. 3 is a perspective view of the pallet.
The figure is a partially cutaway plan view of the same part, and Figure 4 is the - of Figure 2.
It is an arrow sectional view. 1...Pallet, 2...Bar (object to be transported), 3
...Frame part, 4...Support part, 4a...Chevron protrusion, 4
b...Engaging protrusion, 5...First chain conveyor,
7...Lift device, 8...Second chain conveyor, (retracting means), 9...Lift, 13...Lift body, 13a...Chevron projection, 15...Cylinder device, 19...Fork device, 20... ...Portal frame, 22...Traveling frame, 23...Driving means, 24...Fork, 24a...Chevron protrusion, 3
1...Number detector, 31A...Light emitter, 31B...
...Receiver.

Claims (1)

[Scope of utility model registration request] A lift device having pallets that support objects to be conveyed in an aligned state, a pulling means for pulling in the pallets, and a lift for raising and lowering only the objects to be conveyed on the pallets, and a lift device that is movable by a drive means above the lift device. Consisting of a traveling frame, a fork supported by the traveling frame and capable of holding objects to be transported on the lift in the raised position, and a fork device having a detector for detecting the number of transported objects on the lift in the raised position. A picking device featuring: