JPH08319015A - Conveyer device - Google Patents

Abstract

PURPOSE: To simplify a structure, so that a conveying belt can be kept clean, by rotating a drive drum by a driving gear, and turning around a plurality of cord-shaped conveying belts in the same direction at a speed equal to each other. CONSTITUTION: When a drive gear 5 is rotated in a direction of arrow mark by a motor 2, a drive drum 20 is rotated in a direction of arrow mark through a driven gear 24, to move a cord-shaped conveying belt 28 from the left to the right. In this operating condition, when a conveyed object W is fed from a conveyer A, in this conveyer device M, the conveyed object is immediately received to a receiving side 12a, mounted on a plurality of the cord-shaped conveying belts 28, conveyed by 45 deg. changing a conveying direction of the conveyed object W and fed to a conveyer B from a feed out end 12b. A brush 29 removes dust or the like, sticking to an upper surface of the cord-shaped conveying belt 28 with which the conveyed object W comes into contact, dropped down to a receiving case 7. In the case of discarding foreign matter of the receiving case 7 and performing maintenance inspection, a mounting metal fitting 11 is operated to remove a conveyer frame 10 from a base frame 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor device suitable for being installed in a bent portion of a conveyance system path when the path is bent or displaced laterally.

[0002]

2. Description of the Related Art As a relay conveyor device for corners which joins two belt conveyors arranged at a right angle, the one shown in FIG. 5 has been developed. This conveyor system is endless
The belt-shaped conveyor belt 31 is folded at 45 degrees at four places by two trapezoidal sliding plates (not shown) and the roller 3
It is configured to be folded back and forth at two positions by 2 and to be conveyed to the other belt conveyor B by the upper trapezoidal conveyance section 31a which receives the conveyed object sent from one belt conveyor A. The lower return section 31b of the belt-shaped conveyor belt 31 is located directly below the upper conveyor section 31a. However, in FIG. 5, the return section 31b is displaced for convenience of understanding.

[0003]

The above-mentioned conveyor device is constructed such that the belt-like conveyor belt 31 is folded at four places at 45 degrees and folded back at two places, and circulates in four horizontal planes. Therefore, there is a problem that the structure is complicated, the cost is high, and the breakdown is likely to occur.

Further, since it is structurally difficult to remove dust attached to the transport surface of the belt-shaped transport belt 31 (the upper surface of the transport portion 31a) by a brush or the like before reaching the roller 32, the dust is removed from the outer surface of the roller 32. There is also a problem that it tends to be rubbed against, and the transport surface of the belt-shaped transport belt 31 is easily dirty.

An object of the present invention is to provide a conveyor device having a simple structure.

Another object of the present invention is to provide a conveyor device which is easy to maintain and inspect.

Another object of the present invention is to provide a conveyor device which can be kept clean.

[0008]

In order to achieve the above object, the present invention provides a plurality of endless cord-shaped conveyor belts,
A pair of guide pulleys provided at the receiving end and the sending end of the transported object are wound around a driving drum and provided in parallel with each other. With a sliding plate to move along,
The drive drum is connected to a drive device that rotates the drive drum to circulate the plurality of cord-shaped conveyor belts at the same speed in the same direction. A plurality of cord-shaped transport belts can be arranged in a trapezoid or a rhombus in a plan view.

The drive device is provided on the base frame, and
It is preferable that the guide pulley and the drive drum are provided on a conveyor frame that is detachably mounted on the base frame, and the drive gear of the drive device and the driven gear of the drive drum are separably engaged with each other.

It is possible to provide a brush for removing dusts attached to the string-shaped transport belt by contacting with a return portion on the lower side of the string-shaped transport belt. It is preferable that a brush is attached to the conveyor frame, and a receiving box for receiving debris dropped from the string-shaped conveyor belt by the brush is provided on the base frame.

[0011]

When the driving device is operated, the driving drum is rotated so that the plurality of cord-shaped conveyor belts are circulated in the same direction at the same speed. The object to be conveyed sent to the receiving end is carried on the string-shaped conveying belt and conveyed, and is sent out from the sending end.
When a plurality of cord-shaped conveyor belts are arranged in a trapezoidal shape in a plan view, they can be used as a corner relay conveyor device. Further, when the string-shaped conveyor belt is arranged in an orthorhombic shape, the object to be conveyed can be relayed by being provided between the two conveyors whose conveying directions are substantially parallel.

When the drive device is provided on the base frame and the guide pulley and the drive drum are provided on the conveyor frame respectively, and the drive gear of the drive device and the driven gear of the drive drum are disengageably engaged with each other, the conveyor frame is detached from the base frame and driven. Equipment and other parts can be easily maintained and inspected. If a brush is provided, the debris can be removed from the string-shaped conveyor belt, and if a receiving box is provided, the debris can be easily collected.

[0013]

1 to 3 show an embodiment of a conveyor device according to the present invention. In these figures, reference numeral 1 is a base frame. The base frame 1 is provided with a speed control motor (driving device) 2, a speed controller 3 and a changeover switch 4. The motor 2 is provided with a drive gear 5 made of a spur gear and is attached to a fixing bolt 6 so as to be vertically adjustable. The speed controller 3 controls the rotation speed of the motor 2, and the changeover switch 4 switches the rotation direction of the motor 2. The speed controller 3 and the changeover switch 4 are attached to the front surface of the base frame 1. On the upper surface of the base frame, a pair of left and right receiving boxes 7 for receiving foreign matters such as dust are detachably provided horizontally.

Further, reference numeral 10 is a conveyor frame having a trapezoidal box-like plane shape with an open bottom. The conveyor frame 10 has a planar shape.
On a box-shaped base frame 1 formed in the same trapezoidal shape, a plurality of required mounting brackets 11 are vertically and detachably fixed. Pins are vertically fixed to the four corners of the upper surface of the base frame 1, and four pin holes formed in the lower surface flange portion of the conveyor frame 10 are fitted to correspond to the positions of the pins. Positioning is performed for connecting the base frame 1 and the conveyor frame 10. The upper surface of the conveyor frame 10 has a trapezoidal sliding plate 12 whose planar shape is the same as that of the upper plate of the conveyor frame 10.
Are laid horizontally. A plurality of (six in the figure) guide pulleys 13 are fixed to the lower surface of the upper plate of the conveyor frame 10 at the inclined end 12a on one side of the sliding plate 12 and project outward from the opening 10A. The brackets 14 are individually rotatably supported on the shafts 15 of the brackets 14, and the same number of guide pulleys 16 as the guide pulleys 13 are provided on the other end of the inclined end 12b in the same manner as the brackets 14. The shafts 18 of the bracket 17 are individually rotatably supported by shafts. Each axis 15,1
The center line of 8 is parallel to the center line O (FIG. 3) of the sliding plate 12, and the pair of left and right guide pulleys 13, 16 are
It is designed to rotate in the same vertical plane orthogonal to the center line O of 2. The guide pulleys 13 and 16 have grooves 13a,
16a is provided.

Below the sliding plate 12, a drive drum 20 and a pair of left and right pinch rollers 21 arranged on both sides of the drive drum 20 are rotatably supported by the conveyor frame 10. The drive drum 20 is fixed together with a driven gear 24 made of a spur gear to a rotary shaft 23 supported by a pair of anticorrosion bearings 22 fixed to the front and rear inner walls of the conveyor frame 10 (left and right in FIG. 2). Each pinch roller 21
On the right and left sides of the drive drum 20, a rust-preventive bearing 26 is attached to a fixed shaft 25 arranged parallel to the shaft of the drive drum 20.
It is rotatably attached via. Fixed shaft 25
Is provided with screw holes at the centers of both ends thereof, while the front and rear inner walls of the conveyor frame 10 have a plurality of center positions along the line extending from both sides of the drive drum 20 to an upper position. Bolt holes are formed facing each other, and the fixed shaft 25 is attached to the conveyor frame 10 by screwing bolts inserted through the pair of facing holes into the screw holes of the fixed shaft 25. ing.
The position of the fixed shaft 25 can be changed by changing the insertion position of the bolt into the pair of bolt holes facing each other. Thereby, the position of each pinch roller 21 can be adjusted. In order to adjust the position of the pinch roller 21, instead of the above-mentioned configuration, both shaft ends of the fixed shaft 25 are held by a support tool, and the support tool is guided and moved along the inclined line by an adjusting screw or the like engaging with the support tool. It may be configured to allow it. In this case, finer position adjustment is possible. The drive drum 20 and the pinch roller 21 have the same number of guide grooves 20a and 21a as the guide pulleys 13 and 16, respectively.

The drive drum 20 and the motor 2 are provided with a sliding plate 12
Is directly below the center line O of the driven gear 24, and the driven gear 24 is vertically and separably engaged with the drive gear 5. Although a pair of bearings 22 and 26 are provided, only one bearing is shown in FIG.

Reference numeral 28 is an endless cord-shaped conveyor belt. The cord-shaped conveyor belt 28 is formed of urethane or a similar material in a circular cross section, and has a pair of left and right guide pulleys 13 and 16 and a drive drum 20.
And the pinch roller 21 with the grooves 13 provided therein.
A, 16a, 20a, and 21a are used and wound as shown in the figure. The plurality of cord-shaped transport belts 28 are parallel to each other.

The carrying portion 28a of the string-like carrying belt 28 for carrying and carrying the object W to be carried is on the sliding plate 12, and the lower surface thereof is in contact with the upper surface of the sliding plate 12.
Thus, the weight of the transported object W is supported. The return portion 28b of the string-shaped conveyor belt 28 is located below the sliding plate 12, is given tension by the pinch rollers 21 and 21 and has a large wrapping angle so that the drive drum 2 is driven.
It is wound around 0. The tension of the string-shaped transport belt 28 can be changed by adjusting the positions of the pinch rollers 21 and 21 as described above. String-shaped conveyor belt 28
The shape of the transport unit 28a in plan view is the slanted ends 12a, 12
It is fitted to the plane shape of the sliding plate 12 in which b is inclined at 45 degrees with respect to the center line O. When one of the slanted ends 12a and 12b is the receiving end of the transported object W, the other is the sending end.

The conveyor frame 10 is provided with a pair of brushes 29 over the entire length of the plurality of cord-shaped conveyor belts 28 in the width direction (the left-right direction in FIG. 2). The brush 29 removes foreign matters such as dusts and debris of the transported object adhered to the string-shaped conveyor belt 28 on the sliding plate 12 from the string-shaped conveyor belt 28 and drops it into the receiving box 7. A brush piece 29A made of a similar material is fixed to a holding member 29B. The guide pulley 13,
16 and the holding member 29 between the pinch roller 21.
Both end portions of B are detachably attached to the front and rear inner walls of the conveyor frame 10. That is, the bolts 29c, 29c are fixed to the conveyor frame 10, while the lower side of each of the holding members 29B has a large diameter hole portion having a diameter slightly larger than the head of the bolts 29c, 29c. Dharma-shaped holes are formed on the upper side of the bolts 29c, 29c by forming small diameter holes slightly larger in diameter than the shafts of the bolts 29c, and connecting both holes with elongated holes having the diameter of the latter small diameter hole. The bolt 29c, 29c, the holding member 29B
Is inserted through the large-diameter hole, and then lowered to engage the shafts of the bolts 29c, 29c with the small-diameter hole, whereby the brush 29 is attached to the conveyor frame 10. Has been done.

Next, the operation of the conveyor device according to the present invention having the above structure will be described. Conveyor device M of the present invention
As shown in FIG. 3, between the two conveyors A and B arranged at a right angle, the receiving end 12a is oriented parallel to the delivery end of the upstream conveyor A, and the downstream conveyor B is The sending end 12b is installed parallel to the receiving end.

When the drive gear 5 is rotated counterclockwise in FIG. 1 by the motor 2 in the above-mentioned installed state, the drive drum 20 is rotated clockwise through the driven gear 24, and the transport portion of the string-shaped transport belt 28 is rotated. 28a is moved from left to right in FIGS. When the transported object W is sent out from the conveyor A in this operating state, the conveyor device M immediately receives the receiving end 1
It is received by 2a, placed on a plurality of string-shaped conveyor belts 28, conveyed by changing the conveying direction of the conveyed object W by the conveyor A by 45 degrees, and sent out from the sending end 12b to the conveyor B.

In the brush 29 on the right side in FIG. 1, foreign matters such as dust and debris of the conveyed object adhered to the upper surface of the string-shaped conveying belt 28 with which the conveyed object W is in contact with the driving drum 20 around the guide pulley 16. By the time it reaches, it is removed from the string-shaped conveyor belt 28 and dropped into the receiving box 7.

The transport speed is adjusted by the speed controller 3, and the transport direction is switched by the changeover switch 4. Further, when the foreign matter in the receiving box 7 is thrown away or the maintenance and inspection are performed, the mounting bracket 11 is operated to convey the conveyor frame 1
0 is removed from the base frame 1. At that time, the brush 29
Is removed from the conveyor frame 10 and cleaned or replaced with a new one as needed.

In the above embodiment, the plane shape of the sliding plate 12 and the arrangement shape of the plurality of cord-shaped conveying belts 28 in plan view are trapezoids of 45 degrees, but trapezoids of other angles may be used. It can also be an orthorhombic shape like 4. FIG.
When it is formed in an oblique shape as described above, it can be used for relaying two conveyors A, Ba, A, Bb whose transport directions are substantially parallel to each other. In addition, in FIG. 4, two conveyor devices M are used to
The objects W to be conveyed on the two conveyors A and B to the two conveyors Ba, B
It is configured so that it can be conveyed by branching to b. The string-shaped transport belt 28 may be five or less or seven or more, and may be a flat belt having a cross section other than a circular shape, for example.
The gears 5 and 24 may be gears other than spur gears.

[0025]

As described above, in the conveyor device according to the present invention, a plurality of endless cord-shaped conveyor belts are provided with a pair of guide pulleys provided at the receiving end and the sending end of the conveyed object and the driving drum. A slide plate for winding the string-shaped transport belt along the upper surface is provided under the upper transport part of the plurality of string-shaped transport belts and wound on the drive drum. Since the drive device for rotating the drum to circulate the plurality of cord-shaped conveyor belts at the same speed and in the same direction is connected, the structure is simple, the cost is low, and the advantage of being hard to break down is provided. There is.

Further, the drive device is provided on the base frame, and the guide pulley and the drive drum are provided on the conveyor frame detachably mounted on the base frame, so that the drive gear of the drive device and the driven gear of the drive drum can be separated. If it is configured to engage with, maintenance and inspection will be easy.
Further, if a brush is attached to the conveyor frame, and a receiving box for receiving the dust and the like dropped from the string-shaped conveyor belt by the brush is provided on the base frame, the string-shaped conveyor belt can be used to remove dust, scraps, etc. Foreign substances can be easily removed and the product can be smoothly conveyed while keeping it clean, which is particularly suitable for conveying foods. Particularly, when the base frame and the conveyor frame are separable from each other, cleaning of the receiving box, the brush and the like becomes easy.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of a conveyor device according to the present invention.

FIG. 2 is a sectional view of the present conveyor device.

FIG. 3 is a plan view of the present conveyor device.

FIG. 4 is a schematic plan view showing another embodiment of the present invention.

FIG. 5 is a schematic plan view of a belt-shaped conveyor belt of a conventional corner relay conveyor device.

[Explanation of symbols]

 1 unit Frame 2 Motor (driving device) 5 Drive gear 7 Receiving box 10 Conveyor frame 11 Mounting bracket 12 Sliding plate 13 Guide pulley 16 Guide pulley 20 Drive drum 24 Driven gear 28 String-like conveyor belt 28a Conveying section 28b Return section 29 Brush

Claims (6)

[Claims] 1. A plurality of endless cord-shaped conveyor belts are provided in parallel with each other by being wound around a pair of guide pulleys provided at a receiving end and a sending end of an object to be conveyed and a driving drum. A slide plate for moving the string-shaped conveyor belt along the upper surface is provided below the conveyor on the upper side of the string-shaped conveyor belt, and the drive drum is rotated by the drive drum to move the plurality of string-shaped conveyor belts. A conveyor device, characterized in that drive devices are connected to rotate in the same direction at the same speed. 2. The conveyor device according to claim 1, wherein the plurality of cord-shaped conveyor belts are arranged in a trapezoidal shape in a plan view. 3. The conveyor device according to claim 1, wherein the plurality of cord-shaped conveyor belts are arranged in an oblique shape in a plan view. 4. The drive device is provided on the base frame, and the guide pulley and the drive drum are provided on a conveyor frame detachably mounted on the base frame,
The drive gear of the drive device and the driven gear of the drive drum are separably engaged with each other.
The conveyor device described. 5. The brush according to claim 1, further comprising a brush for removing dusts attached to the string-shaped conveyor belt by contacting with a return portion on a lower side of the string-shaped conveyor belt. Conveyor equipment. 6. The conveyor apparatus according to claim 5, wherein a brush is attached to the conveyor frame, and a receiving box for receiving the dust and the like dropped from the string-shaped conveyor belt by the brush is provided on the base frame.