JPH04350015A - Body rotation transport device - Google Patents

Abstract

PURPOSE:To transport a body in rotation at a desired angle and surely without the body falling down on a conveyor. CONSTITUTION:The device consists of the 1st belt device 20 and the 2nd belt device 30 provided along both sides of a conveyor advance direction, and the above 1st and 2nd belt devices respectively possess the 1st belt 21 and the 2nd belt 31 that move in the conveyor advance direction and are mutually different in speed, and the above 1st and 2nd belts are arranged so as to press- contact from both sides the side portions of a body transported by means of the above conveyor. The above are features.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for rotating and conveying objects conveyed by a conveyor. BACKGROUND OF THE INVENTION For example, when inspecting a glass bottle, the bottle body is rotated to check for scratches and the like around the bottle. Generally, in such a rotary inspection machine, bottles are transferred from a straight conveyor to a rotary stage in a circular inspection station, where the bottles are rotated and inspected, and then returned to the conveyor. be. [0003] On the other hand, in order to eliminate the complication of transferring the bottles to and from the rotation stage, it has been proposed to provide a sliding member for the bottles on a straight-moving conveyor and rotate the bottles using the frictional resistance. However, the bottle often fell over, and it was extremely difficult to control the rotation angle. [Problems to be Solved by the Invention] This invention was developed in view of this situation, and by rotating the object as it is on the conveyor, there is no need for a special rotation stage separate from the conveyor. The object of the present invention is to provide a rotary conveyance device that does the following. Another object of the present invention is to provide a device that allows an object to be rotated to rotate reliably without easily falling over during rotation. A further object of the present invention is to provide a rotary conveying device that can easily and reliably control a desired rotation angle. [Means for Solving the Problems] That is, the present invention has the following features:
A conveyor device for conveying an object includes a first belt device and a second belt device provided along both sides of the conveyor traveling direction, and the first belt device and the second belt device each move in the conveyor traveling direction. It has a first belt and a second belt that have different speeds from each other, and the first belt and the second belt are arranged so as to press the sides of the object conveyed by the conveyor from both sides. It relates to a rotational conveyance device for objects. Embodiments [0008] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic plan view showing an example of this invention device, FIG. 2 is a schematic plan view showing an example of a combination of this invention device and a work stage, and FIG. 3 is a combination of this invention device with a bottle inspection device. 4 is a sectional view showing the relationship between the bottle body and the belt position, FIG. 5 is a sectional view showing another belt position, FIG. 6 is a sectional view showing another example, and FIG. 8 is a sectional view showing an example of the differential mechanism of the belt device, and FIG. 9 is a partial sectional view showing the transmission mechanism of the actuation mechanism of FIG. 8. . As shown in the schematic plan view of FIG. 1, the device 10 of the present invention is a conveyor 12 of a conveyor device for conveying an object such as a glass bottle B, etc., which is provided along the traveling direction A. It consists of two belt devices having a first belt 21 and a second belt 31, that is, a first belt device 20 and a second belt device 30. [0010] The conveyor device is a known device having a belt conveyor 12 as shown in the figure, and an appropriate device suitable for the article to be conveyed is used. [0011] The first belt device 20 and the second belt device 30 are also well-known and include a first belt 21 and a second belt 31 suitable for pressing the object to be conveyed, as will be described later. Incidentally, as these belt devices, devices in which a suitable pressing member is attached to a chain can also be used. [0012] The first belt 21 and the second belt 31 are
As shown in the figure, they are provided along both sides of the conveyor 12 of the conveyor device in the traveling direction A, and are installed so as to move in the conveyor traveling direction A, respectively. The first belt 21 and the second belt 31 are driven such that their belt speeds V1 and V2 are different from each other. The first belt 21 and the second belt 31 are arranged so as to press against the sides of the object B conveyed by the conveyor 12 from both sides. As described above, the rotary conveying device 10 of the present invention
The first belt 21 and the second belt 31 press the sides of the object B from both sides while conveying the object B.
The object B is rotated by the speed difference between the belt speeds V1 and V2 of the first and second belts 31. Now, the belt speed (m/min.) of the first belt 21 is V1, the belt speed (m/min.) of the second belt 31 is V2, and the feed speed (m/min.) of the conveyor 12 is V1.
/min. ) is V3, the effective contact distance (m) between the first belt 21 and article B is L1, the effective contact distance (m) between the second belt 31 and article B is L2, and the outer circumferential distance of article B for the specified rotation angle (m ) is L3, the following relational expression holds true. (However, L1=L2.) V1=V3+V3×(L3/2)×(1/L1
) (m/min.) V2=V3-V3×(L
3/2)×(1/L2)(m/min.) 0018
] From such a relational expression, the belt speed required to rotate the object by a predetermined angle is calculated according to the length of the belt (specifically, the effective contact distance between the belt and the object). Furthermore, as conditions for stably rotating an object, the belt speed V1 of the first belt 21 and the second belt 3 are
Preferably, half of the sum of the belt speeds V2 of 1 is approximately equal to the conveyor speed V3 of the conveyor device. That is, if x is the speed difference (m) between the conveyor 12 and each belt 21, 31, the following relationship is good. [0020]V3=(V1+V2)/2V1=V3+x V2=V3-x [0021]As is clear from the above equation, rotating object B while moving it at the same speed as the transport speed of the conveyor means There is no overturning or jumping out, so accurate rotation is possible. [0022] Also, by using the above relational expression,
Conditions for minimizing the belt speed difference and shortening the belt length can be found. Of course, the longer the belt length (specifically, the effective contact distance between the belt and the article), the slower the object can be rotated, the less rotational inertia, and the better the results. FIG. 2 is a schematic plan view showing an example of a combination of the device of the present invention and a work stage. 10A and 10B are arranged at intervals. In this example, the objects B aligned at regular intervals by the alignment device 19 are sent to the first work stage S1. Next, the object B is rotated 120 degrees by the first rotary conveyance device 10A and sent to the second work stage S2. After that, the second rotary conveyance device 10B further
It is rotated 20 degrees and transported to the third work stage S3. In this way, for object B, three work stages S
In steps 1, S2, and S3, work is performed around the entire circumference of the object, each with a rotational phase of 120 degrees. FIG. 3 is a plan view showing an example in which the device of the present invention is combined with a bottle inspection device. In this example, the bottle body B is rotated once by the first belt device 40 and the second belt device 50, and during this time four inspection cameras C1, C2, C3
, C4 to check for scratches on the outer periphery. Reference numeral 16 is a light projector, and 17 is an alignment device for aligning the bottle bodies. As can be understood from the figure, the bottle body B
4 with an inspection field of view of approximately 90 degrees at each 90 degree phase position of
By arranging two inspection cameras, the entire circumference of the bottle body B can be inspected. FIGS. 4 to 6 are cross-sectional views showing the positional relationship between the bottle B and the belts 41 and 51 in the bottle inspection apparatus described above. In Fig. 4, a belt 41 is attached to the shoulder of the bottle body B.
In this example, the top surface a, threaded portion b, neck portion c, base portion d, and bottom portion e of the bottle mouth can be inspected. Note that when inspecting the bottom, the conveyor 12 is eliminated and the bottle body B is suspended. FIG. 5 also shows a belt 4 attached to the bottom of the bottle body B.
1 and 51 are pressed against each other and rotated. In this example, in addition to the top surface a of the bottle mouth, the screw part b, and the neck part c, the shoulder part f is the same as above.
can be inspected. FIG. 6 shows a case in which the belts 41 and 51 are pressed against the threaded part of the mouth of the bottle body B for rotation, which is useful when the main body of the bottle body B is not circular, for example, a square bottle or a deformed bottle. It is. FIG. 7 is a sectional view showing the position adjustment mechanism of the belt device in the device. 60 in FIG.
is a height adjustment device that adjusts the height position of the belts of the first and second belt devices 40, 50, and the left and right handles 6 in the figure are
By rotating belts 1 and 62, belt devices 40 and 50 held by holding members 63 and 64 move up and down. Reference numeral 70 is a width adjustment device for the first belt device 40, which moves the first belt device 40 by operating a handle 71 to adjust the width with respect to the second belt device 50. . Reference numeral 12 is a conveyor, and 13 is a conveyor frame. FIG. 8 is a sectional view showing an example of a differential mechanism of a belt device. As described above, in order to stably rotate the conveyed object B such as a bottle, half of the sum of the belt speed V1 of the first belt device 40 and the belt speed V2 of the second belt device 50 is the conveyor speed of the conveyor device. Although it is preferable that the belt speed be approximately equal to V3, in order to obtain such belt speeds V1 and V2, of course, the first belt device 4
0 and the second belt device 50 can be driven by controlling independent drive devices, for example servo motors. On the other hand, by using a known differential mechanism 80 as shown in FIG. 8, the desired rotational differential can be obtained. In FIG. 8, reference numeral 81 is a line input pulley from a drive device 90 of the conveyor device, and this rotation is transmitted through an input gear 82 to a gear 8 of a differential mechanism 80.
3. On the other hand, the first belt 41 and the second belt 5
For example, the rotation from the differential servo motor 91 to generate a speed difference of 1 is transmitted through the differential amount input pulley 85 to the first belt drive pulley 86 provided integrally with the pulley 85.
is transmitted to. The rotation from this differential amount input pulley 85 is simultaneously transmitted to the differential mechanism 80 via the shaft 87.
and is output from the shaft 88 on the opposite side to the second belt drive pulley 89 with a predetermined differential amount. When using this differential mechanism 80, there is a difference between the conveyor speed V3, the belt speeds V1 and V2 of each belt 41 and 51 of the first belt device 40 and the second belt device 50, and the speed difference x between the belts. The following relationship holds true. V1=V3+x V2=V3-x V3=(V1+V2)/2 FIG. 9 shows the transmission mechanism of the differential mechanism shown in FIG. is transmitted to the pulley 100, and then transmitted from the bevel gear mechanism 101 to the pulley 49 of the first belt device. Similarly, the signal is transmitted from the second belt drive pulley 86 via the pulley 110 to the bevel gear mechanism 111 to the pulley 59 of the second belt device. Effects of the Invention As shown and explained above, in the object rotation conveyance device of the present invention, the first belt device and the second belt device are arranged along both sides of the conveyor device for conveying the object in the conveyor traveling direction. A two-belt device is provided, the first belt and the second belt each move in the conveyor traveling direction and have different belt speeds, and the first belt and the second belt move in the conveyor traveling direction, and the first belt and the second belt move in the conveyor traveling direction. Since the first belt and the second belt are placed in pressure contact with each other from both sides, the article to be conveyed on the conveyor can be conveyed while being rotated by a predetermined angle due to the speed difference between the first belt and the second belt. According to the device of this invention, the object can be rotated as it is on the conveyor, so the work can be carried out without any need for a special rotation stage separate from the conveyor as in the past. . [0040] Furthermore, in the device of the present invention, since the first belt and the second belt rotate and convey the object while pressing the sides of the object from both sides, the object does not easily fall over and can be rotated reliably. can do. Furthermore, with the apparatus of the present invention, as explained in the embodiments, it is possible to easily and reliably control the desired rotation angle of the conveyed object.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view showing an example of the device of the present invention.

FIG. 2 is a schematic plan view showing an example of a combination of the device of the present invention and a work stage.

FIG. 3 is a plan view showing an example in which the device of the present invention is combined with a bottle inspection device.

FIG. 4 is a sectional view showing the relationship between the bottle body and the belt position.

FIG. 5 is a cross-sectional view showing another belt position.

FIG. 6 is a sectional view showing still another example.

FIG. 7 is a sectional view showing the position adjustment mechanism of the belt device of the present invention.

FIG. 8 is a sectional view showing an example of a differential mechanism of a belt device.

9 is a partial cross-sectional view showing a transmission mechanism of the actuation mechanism of FIG. 8; FIG.

[Explanation of symbols]

10　Rotary conveyance device 12 Conveyor 20 First belt device 21 First belt 30 Second belt device 31 Second belt 40 First belt device 41 First belt 50 Second belt device 51 Second belt 60 Height adjustment device 70 Width adjustment device 80 Differential mechanism

Claims (2)

[Claims] 1. A conveyor device for conveying an object is comprised of a first belt device and a second belt device provided along both sides of the conveyor traveling direction, and the first belt device and the second belt device each have a direction in which the conveyor travels. It has a first belt and a second belt that move in different directions and have different speeds, and the first belt and the second belt are arranged so as to press the sides of the object conveyed by the conveyor from both sides. A rotary conveyance device for objects, characterized by: 2. The rotary conveyance device for objects according to claim 1, wherein half of the sum of the first belt speed of the first belt device and the second belt speed of the second belt device is approximately equal to the conveyor speed of the conveyor device. .