JP2000034006A - Multipurpose conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multipurpose conveyor device capable of effectively using a space without requiring an extra space protruded to the outside in the cross direction every time for changing carried products and efficiently and quickly changing the condition of using two types of conveyors without depending on manual moving operation. SOLUTION: A multipurpose conveyor device 1 includes a first conveyor 2 having a first wide carrying member 20 rotationally driven and an elevation drive 22 for elevating the first carrying member 20 to be located at a preset height and a second conveyor 3 having a pair of second narrow carrying members 30, 30 arranged on the right and left sides of the first carrying member 20 and rotationally driven and an oscillation drive 32 for holding at least one of the pair of carrying members 30, 30 in an oscillating manner in order to move one nearer/farther away the other so that an interval therebetween can be controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-purpose conveyor device which can be used for transporting a plurality of types of products having different shapes and sizes as products to be transported and which can switch a transport function for each product.

[0002]

2. Description of the Related Art Conventionally, a multi-purpose conveyor device used between a resin molding machine and various other molding machines or manufacturing apparatuses and a post-process is used for, for example, the shape of various resin products manufactured by the resin molding machine. , Easy to transport according to the size, keeping the quality (keeping the condition where the outside is not scratched)
In order to make it possible, the width of the conveyor belt at the time of use has been switched and adjusted in advance.

For example, a conventional multi-purpose conveyor device 1A shown in FIGS. 8 and 9 is arranged so as to extend in a longitudinal direction (front side and depth side in the drawing), and has a predetermined width w10 and is driven to rotate. A first conveyor device 2a including a belt 20a, a holding member 21a thereof, and an elevating drive unit 22a, and a pair of narrow belt conveyor belts 30a, 30a arranged on both sides of the flat conveyor belt 22a and driven to rotate; A member 31a and a leg 32a with wheels 33a are provided.
A configuration including a second conveyor device 3a capable of adjusting the interval width W between the belt-shaped conveyor belts 30a, 30a by traveling along 4a is used.

Prior to use, the multi-purpose conveyor device 1A can use the first conveyor device 2a and the second conveyor device 3a at the same time (see FIG. 9) and can use only the second conveyor device 3a (see FIG. 9). (See FIG. 8). For example, as shown in FIG. 8, when a large (large) resin part 7 such as a three-dimensional bumper is conveyed by an exterior part such as a passenger car, the flat conveyor belt 20 of the first conveyor device 2a must be transported in advance.
After the height position a is lowered to a position lower than the belt-shaped conveyor belts 30a, 30a of the second conveyor device 3a, in the direction in which the belt-shaped conveyor belts 30a, 30a approach (see arrows Z1, Z2 in FIG. 8). It is moved and adjusted to a narrow interval width W11 for use.

As shown in FIG. 9, when a small (small) resin part 6 such as a trim of a passenger car having a relatively flat shape or a side molding is conveyed,
After running the wheels 33a along the rails 34a in a direction (see arrows Z3, Z4 in FIG. 9) in which the distance between the pair of narrow belt-shaped conveyor belts 30a, 30a of the second conveyor device 3a is increased, the first conveyor is moved. The flat conveyor belt 20a of the device 2a is adjusted to the same height position, and as shown in FIG. 9, the belt-shaped conveyor belts 30a, 30a are used together with the flat conveyor belt 20a as a pseudo flat conveyor belt.

However, the belt-shaped conveyor belts 30a, 30a, and 3a when used as a pseudo flat conveyor belt are used.
Since the space e is formed between the flat belt 0a and the flat conveyor belt 20a, there is a possibility that the small resin component 6 falls from the space e during the conveyance. Therefore, as shown in FIGS. 10 and 11, it is conceivable to use a multipurpose conveyor device 1B which is improved to a wide flat belt 20b and can convey the small resin parts 6 by the flat belt 20b alone.

[0007]

However, in the case of the multi-purpose conveyor device 1B, when the small resin parts 6 are transferred, the small resin parts 6 can be transferred alone without using the belt-shaped conveyor belts 30a, 30a. With the improvement to the wide flat conveyor belt 20b, the width of the leg 3 with the wheel 33b of the second conveyor device 3b is increased by the width.
2b has a shape having a region L10 protruding outward.

For this reason, the belt-shaped conveyor belt 30b,
With the switching operation from the use of the flat belt 20b to the use of the flat belt 20b, the wheels 33b are moved along the rails 34b in the direction of widening the interval between the belt-shaped conveyor belts 30b, 30b (see arrows Z3 and Z4 in FIG. 11). When the vehicle travels, the region L10 protrudes extra. Therefore, in the case of the multipurpose conveyor device 1B, a region L10 whose legs 32b are larger than the case of the multipurpose conveyor device 1A shown in FIG.
The need for the space where the area L10 is located and the second conveyor 3
It is necessary for an operator to manually adjust the width interval of the pair of belt-shaped conveyor belts 30b, 30b, and the operation cannot be performed quickly.

The present invention has been made in view of the above problems, and does not require extra space protruding outward in the width direction every time the product to be conveyed is switched. It is an object of the present invention to provide a multipurpose conveyor device that can efficiently and quickly switch the use state of the conveyor device without relying on a manual movement operation.

[0010]

SUMMARY OF THE INVENTION A multipurpose conveyor device according to the present invention comprises a wide first conveying member which is driven to rotate, and an elevating drive unit which moves the first conveying member up and down to a predetermined height. A first conveyor device, a pair of narrow second transport members disposed on the left and right sides of the first transport member and driven to rotate, and at least one of the pair of second transport members capable of swinging. A second conveyor device having a swing drive unit for holding and moving one of them toward and away from the other to control the width of the gap between the one and the other.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A multi-purpose conveyor device of the present invention is mounted on the upper surface of a base between a resin molding machine arranged in a production line for switching and producing a plurality of types of products and a post-process, for example. Used. Then, for each product to be transported of a plurality of types having different shapes and sizes manufactured by a resin molding machine, corresponding to each product to be transported, and transporting using a first conveyor device having a wide first transport member. , And a pair of narrow conveying members provided with a first conveyor device.

That is, when the first conveyor device is used, the interval width of the pair of second transport members of the second conveyor device is maximized by the swing drive unit, and the swing drive unit is disposed outside the base. It is located in a region that does not protrude (do not protrude). Then, after securing a space that allows the first transport member of the first conveyor device to move upward, the first
The conveyor belt is rotationally driven at a position where the first transport member has been raised to a predetermined height by the elevation drive unit of the conveyor device. The first transport member in this state can be transported by placing a small component.

When the second conveyor device is used, the first conveyor member of the first conveyor device is moved down by the elevating drive unit and accommodated in the lower space. The interval between the second transport members of the pair is moved to a target use position where the width is narrower than the width of the wide first transport member. Then, the second transport member of the pair is accommodated in the space formed above the first transport member by the lowering of the first transport member together with the swing drive unit, and therefore does not protrude outside the base. On the other hand, the first conveyor device is accommodated in a space below and inside the second conveyor device.

Then, the second pair of the second conveyor device
The transport member is driven to rotate. In this state, the second transport member can place and transport a large component. Thus, when the multipurpose conveyor device of the present invention is used to adjust the interval width required for the pair of second conveying members when using the first conveying member,
Since the swing drive unit is used, the maximum swing angle can be set in a range that does not protrude outside the base.
The moving space of each movable member constituting the conveyor device is small.

[0015] Therefore, the second conveyor device does not require an extra space protruding outward in the width direction, unlike the leg portion with wheels in the above-described conventional second conveyor device. Can be used effectively.
Further, the switching of the use state of the two types of conveyor devices can be efficiently and quickly performed by the swing drive unit of the second conveyor device and the elevation drive unit of the first conveyor device.

An endless belt or a plurality of rollers arranged in parallel can be used as the first transport member and the second transport member. The first transport member is set wider than the second transport member (the width of the width orthogonal to the transport direction is wide), and a plurality of substantially flat products to be transported are placed in parallel. It has a function to transport.

The pair of second transport members have a function of placing and transporting a product to be transported in a direction perpendicular to the transport direction. Further, the width of the interval between one and the other of the pair of second transport members can be variously adjusted by the swing drive unit in accordance with the length in the longitudinal direction of the product. A commercially available lift device can be used for the lifting drive of the first conveyor device.

The swing drive section of the second conveyor device can be formed on both or either of the pair of narrow second transport members. The rocking drive unit is configured to set the position where the interval width of the pair of narrow second conveying members is the maximum as the maximum rocking angle along a parallel position facing the side of the base. It is possible to use a configuration having a function of reciprocatingly swinging in a direction in which the interval width of the narrow second conveying member is minimized, and which can secure a space for accommodating the first conveyor device with the upper surface of the base.

The swing drive unit includes a drive source, and a conversion member that converts a drive force from the drive source into a swing force that moves one of the pair of second transport members toward and away from the other. Can be used. As the driving source, a rotary motor, a hydraulic cylinder, an air cylinder, an electric cylinder, human power, or the like can be used.

As the conversion member, a swing arm or link having one end connected to (supported by) a holding member rotatably holding the second transport member and the other end connected to a driving source; And a plurality of gears disposed between the power source and the driving source. As the swing arm, for example, a lower end is vertically supported by a bearing member, and a lower vertical shaft portion connected to an output shaft of a rotary motor serving as a driving source, and one end is connected to an upper end of the vertical shaft portion. A horizontal shaft portion extending laterally, and an upper vertical shaft portion whose lower end is connected (supported) to the other end of the horizontal shaft portion and whose upper end is connected (supported) to the holding member of the belt conveyor. Instead of connecting the output shaft of the rotary motor to the lower end of the lower vertical shaft portion having the above-described configuration, it is possible to use a device in which the horizontal shaft portion is connected (supported) to reciprocating shafts of various cylinders. .

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of the multipurpose conveyor device of the present invention will be described with reference to FIGS. The multipurpose conveyor device 1 of the embodiment shown in FIG. 1 comprises a first conveyor device 2 and a pair of second conveyor devices 3, 3 arranged on both left and right sides thereof.
And The first conveyor device 2 includes a flat conveyor belt 20 serving as a wide first conveying member, a holding plate 210 for holding the flat conveyor belt 20 rotatably and a holding member (not shown), and holding these so as to be able to move up and down. The lifting drive unit 22 is provided.

The flat conveyor belt 20 has a width W1 of about 1800 mm to 2000 mm, which is rotatably held endlessly by a plurality of driven rollers 200 held by a holding plate 210 of a holding member and a drive roller (not shown). The width W1 is not limited, and can be variously set according to the purpose. The lifting drive unit 22 is mounted on a rigid base (base) N, and holds the holding member together with the flat conveyor belt 20 at a predetermined height (arrows Y10, Y in FIG. 2).
(See position 20) (see arrow Y1 and Y2 directions in FIG. 2), and is a commercially available pantograph type. In addition, as the lifting / lowering drive unit 22, one other than the pantograph method can be used.

Each second conveyor device 3 includes a belt-shaped conveyor belt 30 as a narrow second conveying member, a holding member 31 for holding the belt-shaped conveyor belt 30, and a belt-shaped conveyor belt 30 of the other second conveyor device 3. A rotation swing drive unit 32 (see FIGS. 1 and 6) that adjusts to the maximum interval width W and the minimum interval width W4 is provided. The belt-shaped conveyor belt 30 is rotatably held in an endless manner by a driven roller 300 supported by a plurality of support shafts 301 of a holding member 31 (see FIGS. 4 and 5) and a drive roller (not shown), and has a width W2 ( 1 and 2) is 50 mm. The width W2 is not limited and can be variously set according to the purpose.

The holding member 31 is a belt-shaped conveyor belt 3
0 are provided at a plurality of positions (two places) along the longitudinal direction S (see FIG. 2). The plurality of positions is not limited to two positions, but may be three or more positions. The holding member 31 is, as shown in FIG. 4 showing a cross-sectional view taken along the line AA in FIG. 2, a bottom wall 310 and two vertical walls 311, 311 standing upright at an interval from the bottom wall 310.
The vertical wall 3 has a substantially U-shape with the opening facing upward.
11 and 311 are formed of two long holding plates 312 and 312 welded to the inner surfaces of the holding plates.

The swing drive section 32 is installed at a position corresponding to the holding member 31. The swing drive unit 32 includes a hydraulic cylinder device 33 (see FIG. 6) as a drive source, and a swing arm 34 that transmits the driving force from the hydraulic cylinder device 33 to the holding member 31 as a swing force. The hydraulic cylinder device 33 includes a cylinder portion 331 having one end 330 pivotally supported by a holding member (not shown), and a piston shaft 332 that moves back and forth from the cylinder portion 331. The pivot shaft 332 has a tip 333 at a position θ1 separated from a swing center axis 340 of the swing arm 34 by a predetermined swing radius r1 at a swing end side connection portion 3 of the swing horizontal shaft 341.
42.

The amount of reciprocation of the piston shaft 332 corresponds to an interval between two positions (between θ1 and θ2) on the circular locus in the horizontal direction at the swing radius r1 from the swing center axis 340 in advance. Set to something. The swing arm 34 is provided on the upper surface m1 side of the base N and supported by a bearing member m2 (see FIGS. 2 and 3) serving also as a spacer in the height direction. A swinging horizontal shaft 341 connected to the shaft 340 and extending horizontally on the other end side; and a vertical swinging shaft 3 standing upright on the other end side (swinging end side) of the swinging horizontal shaft 341.
43.

Further, as shown in FIG. 1, the swinging horizontal shafts 341 and 341 installed on the upper surface m1 on both sides of the base N are provided.
When the pair of belt-shaped conveyor belts 30, 30 is at the maximum interval width W, the interval width L2 is set to be substantially the same as the interval width L1 on both sides of the base N, and the swing that does not protrude outside is set. It is set to be swingable within the range of the movement angle θ (see FIG. 2).

Furthermore, a space h1 (see FIG. 3) in the height direction for accommodating the first conveyor device 2 in a lowered state is formed between the swing horizontal shaft 341 and the upper surface m1 of the base N. it can. The space h1 can be set in advance in various ways according to the purpose. The vertical swing shaft 343 has its top supported by the bottom wall 310 of the holding member 31 (see FIG. 4).

When the belt-shaped conveyor belts 30 and 30 are used, the swing arm 34 can adjust and control an interval W3 that narrows the maximum interval width W toward the minimum interval width W4 by the swing drive unit 32. Minimum interval width W4
Can be set in advance according to the purpose. The two swing drive units 32 are installed at predetermined positions in the longitudinal direction S of each second conveyor device 3 and are adjusted so as to operate in the same amount in synchronization with each other. The number of swing drive units 32 is not limited, and can be set variously according to the purpose.

The multi-purpose conveyor device 1 configured as described above has a longitudinal direction (front side and depth side in FIG. 1) S
It is arranged and used so as to extend. Prior to using the multi-purpose conveyor device 1, the multi-purpose conveyor device 1 is switched to a state where one of the first conveyor device 2 and the second conveyor device 3 can be used. In some cases, the first conveyor device 2 and the second conveyor device 3 may be simultaneously driven in the state shown in FIG. 1 and both may be used.

Here, a trim having a relatively flat shape of a passenger car and a small resin part 6a such as a side molding are provided.
When a plurality of 6b are conveyed simultaneously, the first conveyor device 2 provided with the flat conveyor belt 20 is used. When a large resin part 7 such as a bumper having a curved portion is conveyed, a belt-shaped conveyor belt is used. Each second with 30
The conveyor device 3 is used.

That is, when the small resin parts 6a, 6b are transported, a pair of belt-shaped conveyor belts 30, 30
Is rotated by the rotation rocking portion 32 to the maximum interval width W (see FIGS. 1 and 2) from the position X2 to the position X1 in FIGS. 2 and 6, and this state is maintained, and the first conveyor device 2 is rotated. Is raised by the lifting drive unit 22 and held at a predetermined height position (see FIG. 1).

After swinging to the maximum interval width W (see FIG. 1), the swing drive unit 32 of the pair of second conveyor devices 3
Is the width L1 between both sides of the base N
Is moved to the double-opened state at the position of almost the same width L2 and is in a state parallel to the side of the base N, so that the leg 3 of the conventional multipurpose conveyor device 1B (see FIG. 11) is used.
A region L10 that protrudes extra outside like 2b and 32b
(See FIG. 11) is not formed, and no space is required for the region L10.

In this state, the flat conveyor belt 20 of the first conveyor device 2 is driven to rotate, and the small resin parts 6a and 6b such as the trim manufactured in the previous step S1 and the side molding are mounted on the flat conveyor belt 20. And transported to the post-process S2. When the large resin part 7 is transported, the first conveyor device 2 is lowered by the lifting / lowering drive unit 22, and then the pair of belt-shaped conveyor belts 30, 3
0 is narrowed by the swing drive unit 32 in a double-closed manner, and the interval width W4 from the position X1 to the position X2 in FIGS. 2 and 6 is narrowed and maintained in this state. At this time, the first conveyor device 2 is accommodated in the accommodation space h1.

Next, a pair of belt-shaped conveyor belts 32 of the second conveyor device 3 are driven to rotate, and both ends of the large resin parts 7 such as bumpers manufactured in the previous step S1 are attached to the belt-shaped conveyor belts 32, 32. It is placed and transported to the post-process S2. According to the multipurpose conveyor device 1 of the above embodiment, no extra space protruding outward in the width direction is required every time the product to be conveyed is switched, and the space can be effectively utilized. The switching of the use state with the two conveyor devices 3 is performed by the lifting drive unit 22 of the first conveyor device 2 and the second
Efficiently using the swing drive unit 32 of the conveyor device 3,
You can do it quickly.

In the above-described embodiment, the case where the hydraulic cylinder device 33 is used as the drive source in the swing drive unit 32 is shown in FIG. 6, but the present invention is not limited to this.
As shown in FIG. 7 as a swing drive unit 32a, a rotary motor M is used in place of the hydraulic cylinder device 33, and an output shaft m1 of the rotary motor M is operably connected to a swing center shaft 340 of the swing arm 34. Can also be used. Also in this case, the swing arm 34 can be set to be swingable within the range of the swing angle θ1, and the same effect can be obtained.

[0037]

The multipurpose conveyor device of the present invention comprises a first conveyor device having a wide first conveying member and a second conveyor device having a pair of narrow second conveying members.
It can be used properly according to the type of the product to be transported, and the space can be effectively used without extra space protruding outward in the width direction every time the product to be transported is switched.

Further, the switching between the use states of the two types of conveyor devices can be efficiently and quickly performed by the swing drive unit of the second conveyor device and the elevation drive unit of the first conveyor device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a first conveyor device in a multipurpose conveyor device of an embodiment.

FIG. 2 is a perspective view showing the progress of switching from a usable position of a first conveyor device to a usable position of a second conveyor device in FIG. 1;

FIG. 3 is a perspective view showing a use state of a second conveyor device in the multipurpose conveyor device of the embodiment.

FIG. 4 is a sectional view taken along the line AA in FIG. 2;

FIG. 5 is a sectional view taken along line BB in FIG. 2;

6 is a skeletal view showing an operation function of a swing drive unit of the second conveyor device in FIG. 3 and showing an example of a drive source.

FIG. 7 is a skeletal view showing an operation function of a swing drive unit of the second conveyor device in FIG. 3 and showing another example of a drive source.

FIG. 8 is a front view in which the use state of the belt-shaped conveyor device in the multipurpose conveyor device of Conventional Example 1 is visually recognized from the front side of the conveyance.

FIG. 9 is a front view of the multipurpose conveyor device of Conventional Example 1 in which the belt conveyor device and the flat conveyor device are used in combination and the belt conveyor belt is used as both a pseudo conveyor belt and a pseudo flat conveyor belt from the front side of the conveyance. FIG.

FIG. 10 is a front view in which the use state of the belt-shaped conveyor device in the multipurpose conveyor device of Conventional Example 2 is visually recognized from the front side of the conveyance.

FIG. 11 is a front view of the multipurpose conveyor device of Conventional Example 2 in which the use state of the flat conveyor device is visually recognized from the transport front side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Multipurpose conveyor apparatus 2 ... 1st conveyor apparatus 20 ... Flat conveyor belt 21 ... Holding member 22 ... Elevating drive part 3 ... 2nd conveyor apparatus 30 ... Strip conveyor belt 31 ... Holding member 32 ... Swing drive part 33 ... Hydraulic cylinder Device 34: Swing arm N: Rigid base (base) W: Spacing width when transported by flat conveyor belt W4: Spacing width when transporting a pair of belt-shaped conveyor belts

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tatsuhisa Oiwa I-Tech Co., Ltd. F-term (reference) 3F025 AD03 AD05 AD11

Claims (1)

[Claims] 1. A first conveyor device comprising: a wide first transport member that is driven to rotate; and a vertical drive unit that raises and lowers the first transport member and positions the first transport member at a predetermined height. A pair of narrow second conveying members which are arranged on the left and right sides of the pair and are driven to rotate; and at least one of the pair of second conveying members is swingably held, and one of the second conveying members is moved toward and away from the other. A multi-purpose conveyor device comprising: a second conveyor device having a swing drive unit that moves to control the width of the gap between the one and the other.