JP2815273B2 - Pallet supply device in production line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet supply apparatus in a production line, and more particularly to a pallet supply apparatus in a mixed production line, that is, a mixed production line for assembling, testing, and producing a variety of products on one line. The present invention relates to a pallet supply device for supplying pallets one by one.

[0002]

2. Description of the Related Art In a production line for assembling, testing, and producing products, a pallet is usually used as a platform on which products are placed. In a leading process, pallets are transported one by one and loaded onto the production line. Is being done.

[0003]

The work of transporting a pallet to the leading step of the production line according to the conventional method is a heavy labor for the operator, and the same worker may perform the assembling work in the leading step. There is a problem that the work load of the worker is increased, which conflicts with labor saving and automation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pallet supply device in a production line which reduces the work load of an operator and realizes labor saving and automation.

[0005]

According to the present invention, there is provided a pallet supplying apparatus for a production line, comprising: placing a product on a pallet; assembling and testing the product; In a pallet supply device in a production line for supplying one by one, the pallet supply device includes the following units. (1) pallet horizontal alignment means 21 for aligning the pallet 1 in parallel with the production line traveling direction of the pallet 1; and (2) pallet 1 in the production line traveling direction of the pallet 1;
Vertical aligning and holding means 24 for holding the pallet 1 and (3) moving means 2 for moving the pallet 1 to the head of the production line
And (4) up and down driving means 2 for raising and lowering the pallet 1
And (5) control means for controlling the operations of the pallet horizontal alignment means 21, the vertical alignment gripping means 24, the moving means 22, and the vertical drive means 23.

[0006]

The pallet supply device in the production line of the present invention automatically conveys a plurality of pallets loaded on the cart 11 one by one to the head of the production line. Therefore, once the operation push button switch is pressed once, the fact that the pallet supply device is operating is stored in the storage unit inside the programmable controller until the reset push button is pressed,
When the pallet base 25 integrated with the pallet gripper 24 is lowered by the forward rotation of the Z-axis motor 23 and comes into contact with the pallet stacked on the uppermost part of the carriage 11, the forward rotation of the Z-axis motor 23 stops and the pallet gripper 24 air cylinders 30
Is energized and grips only the pallet stacked on top. Next, the Z-axis motor 23 rotates in the reverse direction, moves up the pallet base 25 integrated with the pallet gripper 24 that has gripped one pallet, stops at the height of the roller conveyor, and rotates the X-axis motor 21 to move in the horizontal direction. When the positioning is performed and the sensor 29 on the roller conveyor detects that there is no pallet, the Y-axis motor 22 rotates, moves the pallet gripper 24 that grips the pallet, and stops on the roller conveyor. Next, the excitation of the solenoid of the air cylinder 30 of the pallet gripper 24 is released, the pallet is dropped on the roller conveyor, and when the sensor 29 on the roller conveyor detects the presence of the pallet, Z
The shaft motor 23 rotates in the reverse direction to raise the pallet base 25 and stop at a predetermined position.

[0007]

FIG. 1 is a view showing a place where a pallet is supplied to a leading step of a production line. A plurality of pallets 1 are stacked on a cart 11 by an operator and transported to a predetermined position near the front of the pallet supply device 2. The pallets 1 loaded on the cart 11 are supplied one by one to the head 3 of the production line by the pallet supply device 2. The pallet 1 supplied to the head 3 is conveyed to the first assembling process by driving the roller conveyor 5. The operation box 12 is provided with a push button switch for operation and reset, and is used to stop the operation of the pallet supply device.

FIG. 2 shows (A) of the pallet supply device of the present invention.
FIG. 2 is a perspective view, and FIG. 2B is a view as seen from a traveling direction side of a production line. After the pallet gripping means 24 of the pallet supply device grips the pallet 1, the X-axis motor 21 pallet gripping means 2 grips the pallet 1 in a direction perpendicular to the pallet advancing direction when viewed from above the production line, that is, in the X-axis direction.
4 is used for driving the pallet base 25 integrated with the pallet base 4, and the Y-axis motor 22 is
5 is the traveling direction of the pallet 1 on the production line, ie, Y
Pallet gripping means 2 used to move in the axial direction
4 moves on the slide rail 26 and moves in the Y direction. Z
The shaft motor 23 is used to move the pallet base 25 integrated with the pallet gripping means 24 via the chain 27 in the ascending and descending directions, that is, in the Z-axis direction. The micro switch 28 is a switch for detecting that the pallet base 25 has descended and has come into contact with the uppermost pallet 1 loaded on the cart 11. Roller conveyor 5
Is used to determine whether the pallet 1 is placed on the roller conveyor 5 or not. The pallet gripping means 24 moves the pallet 1 in the Y direction by the air cylinder 30.
Can be grabbed.

FIG. 3 is an explanatory view of the main operation of the pallet supply device of the present invention. FIG.
(B) is a diagram showing each operation of gripping the pallet, (C) is a horizontal alignment of the pallet, and (D) is a diagram showing each operation of transporting the pallet.
As shown in FIG. 3 (A), the production line rear chuck 31 of the gripping means of the pallet supply device is abutted against the end face of the pallet 1 to perform vertical alignment, and as shown in FIG. 3 (B), The pallet 1 is gripped by closing the production line front chuck 32 of the gripping portion 24. After gripping the pallet 1 as shown in FIG. 3 (C), the pallet 1 is lifted from the carriage and raised to the height of a roller conveyor (not shown). Perform alignment. After the pallet 1 is gripped and aligned in the horizontal direction as shown in FIG. 3D, it is confirmed that there is no pallet previously conveyed on the roller conveyor, and when there is no pallet, the pallet 1 is produced. It is transported onto the roller conveyor at the head of the line.

FIG. 4 is a flowchart showing the operation of the pallet supply device of the present invention. The number following S in the figure indicates a step number. Hereinafter, the operation of the pallet supply device of the present invention will be described with reference to FIG. First, an operator transports a trolley loaded with a plurality of pallets to a position short of the pallet supply device. Next, the operation push button switch of the operation box shown in FIG. 1 is pressed once (step S1). Once the operation push button switch is pressed, the fact that the pallet supply device is in operation is stored in the storage unit inside the programmable controller (not shown) until the reset push button is pressed. Next, the forward rotation of the Z-axis motor 23 causes the pallet base 25 integrated with the pallet gripper 24 to move down, and when the microswitch 28 comes into contact with the pallet stacked on the top of the carriage 11, the forward rotation of the Z-axis motor 23 Stop (step S2). Then, the solenoid of the air cylinder 30 of the pallet gripper 24 is excited, and only the pallet stacked on the top is gripped (step S3).

Next, the Z-axis motor 23 rotates in the reverse direction to ascend the pallet base 25 integrated with the pallet gripper 24 holding one pallet and reach the height of the roller conveyor by a microswitch (not shown). And stop (step S4). Next, when the X-axis motor 21 rotates and both the left and right sensors 35 shown in FIG. 3D do not detect the pallets, the operation is stopped and the lateral alignment is performed (step S5). Next, when the sensor 29 on the roller conveyor detects that there is no pallet, the Y-axis motor 22 rotates, moves the pallet gripper 24 that grips the pallet, and stops on the roller conveyor (step S6). Next, when the sensor 29 on the roller conveyor detects that there is no pallet, the excitation of the solenoid of the air cylinder 30 of the pallet gripper 24 is released, and the pallet is dropped on the roller conveyor (step S7). Next, when the sensor 29 on the roller conveyor detects the presence of a pallet, the Z-axis motor 23 rotates in the reverse direction to raise the pallet base 25, stop at a predetermined position, and shift to step S2 (step S8). At this time, if the operation has not been released, step S2 and subsequent steps are repeatedly executed.

[0012]

As described above, according to the pallet supply apparatus for the production line of the present invention, the pallet can be automatically supplied at the head of the production line, so that the work load on the operator can be reduced, and labor saving and automation can be realized. Is done.

[Brief description of the drawings]

FIG. 1 is a diagram showing a place where a pallet is supplied to a leading step of a production line.

FIG. 2A is a perspective view of the pallet supply device of the present invention, and FIG. 2B is a view of the pallet supply device as viewed from a traveling direction side of a production line.

3A and 3B are explanatory diagrams of main operations of the pallet supply device of the present invention, wherein FIG. 3A is a vertical pallet alignment, FIG. 3B is a pallet grip, FIG. 3C is a horizontal pallet alignment, and FIG. ) Is a diagram showing each operation of pallet conveyance.

FIG. 4 is a flowchart showing the operation of the pallet supply device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pallet 2 ... Pallet supply apparatus 3 ... Production line head part 5 ... Roller conveyor 11 ... Truck 21, 22, 23 ... Motor 24 ... Pallet holding part 25 ... Pallet base 30 ... Air cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroyoshi Terashima 98-2 Unoki-nu, Unoki-cho, Hebei-gun, Ishikawa Pref. Hei 1-316183 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B23Q 7/00 B65G 47/90 B65G 59/02

Claims (1)

(57) [Claims] The method according to claim 1 assembled on a pallet tested by control means for controlling so one by one and supplies to the top step conveying means (5) above the Palais <br/> Tsu preparative production line for producing the product A pallet supply device in a production line provided with : A: a pallet supply device parallel to a production line traveling direction of the pallet (1).
The lateral alignment means of the pallet for aligning the pallet (1) in position (21), B: TateSei palette for aligning the pallet on the production line traveling direction with gripping the pallet (1)
Row means (24); C: vertical drive means for raising and lowering the pallet (1)
(23) and the pallet is supplied onto the transport means (5).
On a pallet consisting of a vertical position sensor
Lower alignment means; D: the horizontal alignment means, the vertical alignment means, and the vertical alignment
After aligning the pallets (1) by row means,
Moving means for moving the pallet to the head of the production line
(22) A pallet supply device in a production line, comprising: