JP2004189293A - Boxing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a boxing device capable of increasing the boxing speed and reducing the installation width of the device by using two robots. <P>SOLUTION: The boxing device 1 comprises a work conveyor 2 having a work holder 21 to feed works 6, a box conveyor 3 to feed/discharge a box 7 in which the works are packed, and two robots 4A and 4B to chuck the works and pack them in an arranged manner. The work conveyor has two-pitch feed, and the box conveyor has one-pitch feed so that the boxing position 35A of the first robot 4A and the boxing position 35B of the second robot 4B are at the stop positions adjacent to each other on the box conveyor. Temporary placement parts 5A and 5B capable of temporarily placing the works are provided. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box packing device capable of coping with various kinds of works, automatically aligning works in a box and packing the boxes.
[0002]
[Prior art]
In the conventional box packing device, one robot chucks the work sent to the work conveyor, packs the work in the box sent by the box conveyor, and packs the work in the box conveyor. Discharging. In this case, the box conveyor is arranged in a U-shape, and a box feed inlet and a box feed outlet are provided at respective corners, and a box packing part is provided between the box feed inlet and the box feed outlet, respectively. It is provided with the width of a box. Therefore, in the case of a box packing device using one robot, the installation width of the device for three boxes is required.
[0003]
However, in a box packing operation using one robot, the speed of the operation cannot be increased. Therefore, the speed is increased by using two robots. In this case, the first robot packs the first box, and the second robot packs the second box. With this box packing device, a box width of 6 boxes is required to feed two boxes at a time. However, there has been a problem that the installation width of the apparatus is widened.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a box packing device that can speed up box packing work using two robots and can reduce the installation width of the device. It is.
[0005]
[Means for Solving the Problems]
The present invention provides a box packing device described in each claim as means for solving the above problem.
The box packing device according to claim 1 is provided with a work conveyor, a box conveyor, and two robots, and the work conveyor is fed by two pitches, and the box conveyor is fed by one pitch. In addition, the boxing position of the first robot and the boxing position of the second robot are set to adjacent stop positions on the box conveyor, whereby the speed of the boxing operation can be increased, and the installation width of the apparatus can be improved. Also requires only four boxes, so the installation width of two boxes can be reduced.
[0006]
According to a second aspect of the present invention, in the box packing device, the work conveyor is provided with a work holder, so that even when the work is sent out on the work conveyor in a toothless state, two robots can be used. We are prepared to respond.
According to the third aspect of the present invention, the box packing device is provided with a temporary placing portion for temporarily placing the work between the work conveyor and the box conveyor, whereby the work is sent in a toothless state. In this case as well, the boxes can be packed in order in a minimum loss time without missing the boxes.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a box packing device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing the entire configuration of the box packing device of the present invention. The box packing apparatus 1 of the present invention includes a work conveyor 2, a box conveyor 3, and a first robot 4A and a second robot 4B.
[0008]
The workpiece conveyor 2 for supplying the workpieces 6 is arranged in a U-shape and includes a workpiece holder 21 for supplying the workpieces 6 one by one. The work holder 21 of the work conveyor 2 is provided with a first take-out part 22A and a second take-out part 22B, each of which can hold the work 6.
The box conveyor 3 for supplying the box 7 for packing the work 6 is also arranged in a U-shape, and the work conveyor 2 and the box conveyor 3 are arranged back to back as shown in FIG. A first robot 4 </ b> A and a second robot 4 </ b> B are arranged at the back-to-back positions of the two conveyors 2 and 3 with the work conveyor 2 interposed therebetween. Further, between the work conveyor 2 and the box conveyor 3, a first temporary storage section 5A and a second temporary storage section 5B for temporarily storing the work 6 are provided.
[0009]
The U-shaped box conveyor 3 is provided with an empty box insertion port 31 into which the empty box 7 into which the work 6 is to be inserted and a post-packing take-out port 32 through which the box after the work 6 is packed is taken out. A box feed slot 33 and a box feed discharge port 34 are provided at the corners of the letter in a space corresponding to one box, and a first box packing portion 35A is provided between the box feed slot 33 and the box feed discharge port 34. And the second boxed portion 35B are provided adjacent to each other.
[0010]
In this case, the first robot 4A performs the half-packing work of the work 6 on the box 7 located in the first box-packing unit 35A by half of the total number of the boxes, and the other half is the second box-packing unit. The second robot 4B performs the operation at the position 35B. Since the two first and second robots 4A and 4B operate simultaneously, the work conveyor 2 supplies the work 6 at a two-pitch feed, whereas the box conveyor 3 feeds a box at a one-pitch feed. 7 is supplied.
[0011]
The operation of the box packing device of the present invention having the above configuration will be described below. First, the empty box 7 is put into the box conveyor 3 from the empty box input port 31, sent by the box conveyor 3, and conveyed to the box feed input port 33. Next, the box 7 is sent from the box feed slot 33 to the first box packing section 35A and the second box packing section 35B by one pitch feed.
[0012]
On the other hand, the work 6 is placed on the work holder 21 from the work conveyer 2, and the work 6 is transported at a two-pitch feed. One of the workpieces 6 is chucked by the first robot 4A and the other is chucked by the second robot 4B and taken out from the first and second take-out sections 22A and 22B, respectively. The work 6 is packed in the boxes 7 located in the box packing section 35A and the second box packing section 35B. The boxing operation of the first robot 4A and the second robot 4B is performed simultaneously. In the first box packing section 35A in which the first robot 4A performs the box packing operation, the box 6 stores half of the works 6 in the total number of the works 6 to be packed in the box 7. The second robot 4B performs the remaining half of the box packing work, so that the box conveyor 3 of the first and second box packing units 35A and 35B can be fed one pitch without wasting time.
[0013]
When all (six in FIG. 1) works 6 are accommodated in the box 7, they are conveyed to the box feed / discharge port 34, where they are conveyed by the box conveyer 3 to the take-out port 32 after packing, and the work 6 is packed in a box. The box 7 is taken out.
In this way, by feeding the work 6 at two pitches and feeding the box 7 at one pitch, the two robots 4A and 4B can perform the packing operation at high speed.
[0014]
Such a box packing operation has no problem when the total number of the workpieces 6 accommodated in one box 7 is an even number (six in FIG. 2A) as shown in FIG. As shown in FIG. 2B, when the total number of the workpieces 6 accommodated in one box 7 is an odd number (15 pieces in FIG. 2B), a fraction occurs in the packing operation of the two robots 4A and 4B. However, for one box, one robot is always in a one-cycle pause state once per box, resulting in a time loss. In order to eliminate this waste, an operation method thereof will be described with reference to an example in which 15 workpieces 6 are accommodated in FIG.
[0015]
First, in the first box, the first robot 4A stores eight works 6 in the box, the second robot 4B stores the remaining seven works 6 in the box, and the second box 4 The robot 4A accommodates seven workpieces 6 in the box, the second robot 4B accommodates the remaining eight workpieces 6 in the box, and the two robots 4A and 4B accommodate the workpieces accommodated in the box 7. By alternately changing the number of containers (number of boxes) of No. 6 and matching the cycle, even if the number of containers is an odd number, there is no time loss, and the boxing operation by one pitch box feeding is performed. Can be.
[0016]
Next, referring to FIG. 3, the role of the temporary placement units 5A and 5B will be described. That is, as shown in FIG. 3, the operation of the two robots 4A and 4B when the workpiece 6 is sent in a so-called toothless state where only one workpiece 6 is placed on the workpiece holder 21 of the workpiece conveyor 2 will be described. I do.
As shown in FIG. 3A, in a state where the work 6 is not temporarily placed on the first and second temporary placement sections 5A and 5B, the first take-out section in which the work 6 is on one side of the work holder 21. If the workpiece is supplied in a toothless state that is placed only on 22A, one of the first robots 4A chucks the one work 6 and transfers the work 6 to the first temporary placement section 5A. At that time, the other second robot 4B does not perform the boxing operation.
Therefore, in this state, the work itself of packing the work 6 by the robots 4A and 4B is not performed.
[0017]
As shown in FIG. 3B, in a state where the work 6 is temporarily placed on the first temporary placement section 5A, the work 6 is placed only on the first unloading section 22A on one side of the work holder 21. When supplied in a toothless state, one of the first robots 4A takes out the work 6 from the first temporary placement part 5A and packs it in the box 7 located in the first box packing part 35A of the box conveyor 3. . At the same time, the other second robot 4B chucks and takes out the work 6 in the first take-out part 22A of the work holder 21, and packs the work 6 in the box 7 located in the second box packing part 35B. Thus, in the state of FIG. 3B, the first and second robots 4A and 4B perform the simultaneous boxing operation.
Although FIG. 3 illustrates the case where there are two temporary placement portions, the same operation and effect can be obtained even if the temporary placement portions are provided at one or more locations.
[0018]
In the above description, the work conveyor is described as having a work holder, but the same operation and effect can be obtained even if only the work is transported without the work holder. is there. Further, the same effect can be obtained without providing the temporary placing portion.
[0019]
As described above, according to the present invention, the packing operation can be performed at a high speed using two robots, and the installation width of the box conveyor can be reduced to the box 6 when the conventional two robots are used. Although the installation width for each unit was required, the installation width for four boxes is sufficient, and the installation width for the second unit can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view showing an overall configuration of a box packing device according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a case where the number of works accommodated in a box is (a) an even number and (b) an odd number.
FIG. 3 is a diagram illustrating a role of a temporary placement unit when a workpiece is supplied in a state where the workpiece is placed on only one of the workpiece holders of the workpiece conveyor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Box packing apparatus 2 ... Work conveyor 21 ... Work holders 22A and 22B ... 1st, 2nd take-out part 3 ... Box conveyor 35A, 35B ... 1st, 2nd box packing part 4A, 4B ... 1st, Second robots 5A, 5B: first and second temporary placing parts 6: work 7, box

Claims (3)

One work conveyor for supplying the work,
A box conveyor for supplying and discharging boxes for packing the workpieces,
In a box packing device including two robots for chucking a work on the work conveyor and aligning and packing the work in a box,
The feed of the work conveyor is 2 pitch feed,
The box conveyor is fed by one pitch,
A box packing device, wherein the box packing position of the first robot and the box packing position of the second robot are set to adjacent stop positions on the box conveyor. The box packing device according to claim 1, wherein the work conveyor has a work holder. The box packing device according to claim 1 or 2, further comprising a temporary placement section that can temporarily place the work between the work conveyor and the box conveyor.

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