JPH061334U - Article orientation changer - Google Patents

Abstract

(57) [Summary] [Structure] The article 1 can be carried over the lifting frame 45 by the roller conveyor 14 in a state where the lifting frame 45 is set to the lower limit by the lifting / lowering device 43 and retracted into the retreat space 20. . By lifting the lifting frame 45 by the lifting / lowering device 43, the article 1 on the grooved roller group 17 can be lifted. Rotating gear 35
Thus, by rotating the lifting frame 45 around the vertical axis 30, the orientation of the article 1 can be displaced by a predetermined angle. By moving the lifting frame 45 down with the lifting device 43,
The article 1 can be landed on the group of grooved rollers 17 by retreating to 20. [Effect] An article can be lifted from below by a lifting frame, changed to a desired angle, and then returned to the roller conveyor. The change in direction always causes the stop position to be disturbed or to drop regardless of the shape or weight. Stable and reliable without

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention changes the orientation of articles such as rectangular slabs (marble, artificial marble, granite, etc.) that form a floor when laid on the floor of a hotel, for example, in a transfer line that performs processing such as chamfering. The present invention relates to a device for changing the direction of an article used for.

[0002]

[Prior art]

 Conventionally, as this type of device, for example, a suction type has been provided in which a machine frame is provided above a transfer line, and a suction plate is provided on the machine frame side via an elevating device and a rotating device. .

According to this conventional type, the article is stopped at a predetermined position in the conveying line, and the suction / lowering device lowers the suction plate to abut against the upper surface of the article for suction, and then the lifting / lowering device suctions. By raising the disc, the article can be raised with the suction disc. Next, by rotating the article with the suction cup by a predetermined angle by the rotation device to change the orientation of the article, and by lowering the article with the suction disc with the lifting device, the changed orientation can be returned to the transport line. After that, the suction cup releases the suction and raises.

[0004]

[Problems to be solved by the device]

 However, according to the above-described conventional configuration, when the stop position of the article is disturbed, the suction by the suction cup becomes an eccentric position, which may cause the article to fall off when rising or rotating. Moreover, when the top surface of the article is not flat or when the article is heavy, it is not possible to favorably adsorb or raise the article.

An object of the present invention is to provide an article orientation changing device capable of constantly and reliably changing the orientation regardless of the irregular stop position of the article, the shape and weight of the article. .

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the article orientation changing apparatus of the present invention comprises a roller conveyor for loading and unloading articles, which comprises a group of grooved rollers arranged at a predetermined roller pitch. By forming a plurality of short roller bodies at a predetermined pitch with respect to the roller shaft, the gap in the roller shaft center direction between the short roller bodies and the roller pitch direction between the adjacent grooved rollers are formed. The gap forms a grid-shaped retreat space in a plan view, and a lift frame that allows retreat is provided in this retreat space, and the lift frame is rotatable about the vertical axis and vertically. It is configured to be able to move up and down along the axis, and is provided with a rotary motion device and a vertical motion device that interlock with the lifting frame.

[0007]

[Action]

 According to the structure of the present invention, the lifting frame is moved to the lower limit and is retreated into the retreating space by the operation of the lifting device before the articles are carried in. In this state, the articles are loaded by the drive of the roller conveyor, and when the articles reach the upper part of the lifting frame, the drive transfer is stopped.

After carrying in the article in this way, first, the lifting frame is raised by the reverse operation of the lifting / lowering device to lift the article on the grooved roller group. Then, by operating the rotary motion device, the lifting frame is rotated about the longitudinal axis by a predetermined angle, thereby displacing the orientation of the article. Then, the lifting frame is lowered by the operation of the lifting device, and the lifting frame is retracted into the retracting space to land the article on the grooved roller group. This allows the displaced articles to be returned onto the grooved roller group. After that, the article can be carried out by driving the roller conveyor.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. A direction changing device 10 for changing the direction of the rectangular plate-shaped object 1 which is an example of an article is arranged between the carry-in conveyor 2 and the carry-out conveyor 3. The plate-like object 1 is, for example, a rectangular stone plate that forms a floor by laying it on the floor of a hotel, and after chamfering a pair of corners, it is carried in from the carry-in conveyor 2 to the direction changing device 10. Then, the direction is changed by 90 degrees to chamfer the other pair of corners, and then the corners are carried out to the carry-out conveyor 3. Both conveyors 2 and 3 are composed of a machine frame 4, driving or driven rollers 5, a belt 6 and the like.

The orientation changing device 10 has an underframe-shaped lower machine casing 11 installed on the floor side and an upper machine casing 12 supported on the machine casing 4 side of the conveyors 2 and 3. On the lower machine casing 11, a roller conveyor 14 that forms a linear transport path 13 together with both conveyors 2 and 3 is arranged. The roller conveyor 14 is of a driving type, and is configured by disposing a plurality of rollers in the direction of the transport path 13 between a pair of left and right frames 15 standing upright from the lower machine casing 11.

In the roller group, one or two rollers close to both conveyors 2 and 3 are formed as a long transfer roller 16, and a large number of intermediate rollers are provided in a plurality with respect to the roller shaft 17A. The short roller bodies 17B are formed into grooved rollers 17 arranged at a predetermined pitch. Therefore, the gap (groove) 18 in the roller shaft center direction between the short roller bodies 17A in the grooved roller 17 and the gap 19 in the roller pitch direction between the adjacent grooved rollers 17 allow the grid to be seen in a plan view. Forming a retreat space 20.

A driven wheel (roller type) 21 is arranged at both ends in the direction of the transport path 13 below the group of rollers 16 and 17, and is attached to the lower machine casing 11 and the output shaft 23 on the motor 22 side. A driving wheel body 24 that interlocks is provided, a plurality of guide wheel bodies 25 are provided, and a belt 26 is stretched between the wheel bodies 21, 24, 25. Here, the belt 26 is in contact with the group of rollers 16 and 17 from below, so that the group of rollers 16 and 17 can be forcibly rotated in the same direction.

The upper machine casing 12 is arranged above the roller conveyor 14 with the conveyance path 13 interposed therebetween, and in the central portion of the upper machine casing 12, a vertical axis 29 is provided via an upper bearing 27 and a lower bearing 28. It is provided rotatably around the vertical axis 30 and slidable in the direction of the vertical axis 30. The upper bearing 27 is supported by the bracket 31 from the upper machine casing 12, and the lower bearing 28 is supported by the upper machine casing 12. A flat frame-shaped lifting frame 33 is connected to the lower end of the vertical axis 29 via a disc body 32. A plurality of guide rollers 34 are provided on the upper machine casing 12 side to regulate the upper limit of the disc body 32 and promote rotation.

The upper machine casing 12 is provided with a rotary motion device 35 that rotates the elevating frame 34 forward and backward around a vertical axis 30. That is, between the upper bearing 27 and the lower bearing 28, there is provided a cylindrical body 36 which is fitted onto the vertical axis 29, and this cylindrical body 36 is provided with a longitudinal elongated hole 37 and a pin 38 to extend the vertical axis. It rotates together with 29, but is configured to allow vertical movement of the vertical axis 29. A cylinder device 40 is provided between the bracket 39 extending from the tubular body 36 and the upper machine frame 12, and the vertical axis 29 is configured to rotate in the forward and reverse directions by the expansion and contraction of the cylinder device 40. A pair of stoppers 41 and 42 are provided on the upper machine casing 12 side so that the reverse rotation can be performed over 90 degrees. The rotary motion device 35 is constituted by the above 36 to 42.

Further, on the upper bearing 27 side, a cylinder device 43, which is an example of an elevating device for sliding the vertical axis 29 in the direction of the vertical axis 30, is provided. The cylinder device 43 has its operating rod facing downward and its main body is fixed to the upper bearing 27 side, and the operating rod is connected to the upper end of the vertical axis 29.

As described above, the connecting rods 44 are hung from the four corners of the elevating frame 33 having a flat frame shape, and the lifting frame 45 is attached between the lower ends of the connecting rods 44. The lifting frame 45 is constructed by assembling a plurality of front and rear materials and left and right materials in a grid pattern so that the front and rear materials in the plate shape and the left and right materials face each other at the same time. It is constructed so that it can be completely moved into the space 20. A stopper 46 for restricting the lowering limit of the lifting frame 45 is provided on the lower machine frame 11 side.

A straight fixed guide body 47 is provided on one side above the group of rollers 16 and 17 on one side of the frame 15 via a bolt-nut type adjustable fixture 48. A movable guide body 50, which is movable toward and away from the fixed guide body 47 by the operation of the cylinder device 49, is provided on the other side of the frame 15 side opposite to.

The operation of the above configuration will be described below. When the carry-in conveyor 2 and the roller conveyor 14 are in the driven state, the plate-like object 1 is carried by the carry-in conveyor 2 with the left and right positions being positioned, and then carried out from the carry-in conveyor 2 to the roller conveyor 14. It

At this time, in the direction changing device 10, the elevating frame 33 side is in the normal direction due to the extension of the cylinder device 40 in the rotary motion device 35, and in this positive attitude, the bracket 39 contacts one stopper 41. Is regulated by. Further, due to the extension of the cylinder device 43, which is a lifting / lowering device, the lifting frame 45 comes into contact with the stopper 46 to the lower limit, and is retracted into the retreat space 20.

Therefore, the plate-like object 1 is supported by the grooved rollers 17 and carried in above the lifting frame 45, and when it reaches the center of the lifting frame 45, the roller conveyor 14 is stopped and driven. Is stopped.

In this state, first, the cylinder frame 43 is contracted to raise the lifting frame 45 via the vertical axis 29, the disc body 32, the elevating frame 33, etc., and the lifting frame 45 is moved upward from the retreat space 20. The plate-like material 1 on the group of rollers 17 with grooves is lifted and lifted. The ascent at this time can be performed without affecting the cylindrical body 36 via the long hole 37 and the pin 38, and the ascending limit is restricted by the disk body 32 contacting the guide roller 34.

Next, the cylinder device 40 of the rotary motion device 35 is contracted. Then, the vertical axis 29 rotates around the vertical axis 30 via the bracket 39, the tubular body 36, and the pin 38, and further the lifting frame 45 is rotated together with the disc body 32 and the lifting frame 33. This rotation is smoothly performed by the disc body 32 being guided by the guide roller 34, and is further performed until the bracket 39 comes into contact with the other stopper 42. As a result, the orientation of the plate-like object 1 is displaced by 90 degrees.

Then, the lifting frame 45 is lowered by the extension of the cylinder device 43, the lifting frame 45 is retracted into the retracted space 20, and the plate-like object 1 is landed on the grooved rollers 17 group. By this, the plate-like object 1 whose direction is displaced by 90 degrees can be returned to the grooved rollers 17 group.

After that, the movable guide body 50 is moved closer to the fixed guide body 47 side by the operation of the cylinder device 49, and the plate-like object 1 is laterally pushed to abut against the fixed guide body 47 side. Positioning of the object 1 in the width direction is performed. Next, the plate-like object 1 is carried out from the direction changing device 10 to the carry-out conveyor 3 by driving the group of roller conveyors 14, and is carried to the next step by the carry-out conveyor 3. Further, the movable guide body 50 is moved away from the fixed guide body 47.

The orientation of the plate-like object 1 is changed as described above. When the orientation of the plate-like object 1 that has been carried in next is changed, the lifting frame 45 is moved by the extension of the cylinder device 40. It is rotated in the opposite direction from the last time. Further, the orientation changing angle of the plate-like object 1 can be set at an arbitrary angle by disposing the stoppers 41 and 42. Further, although the rectangular plate-like article 1 is shown as an article in the above-mentioned embodiment, it can handle articles of various shapes such as a block-like article and an article whose top surface is not flat.

[0026]

[Effect of device]

 According to the present invention having the above-described structure, the article on the roller conveyor can be lifted from below by the lifting frame, and can be returned to the roller conveyor after being turned to a desired angle. Regardless of shape or weight, it can always be performed reliably and reliably without dropping.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of an article orientation changing device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the device for changing the orientation of the article.

FIG. 3 is a plan view of the device for changing the orientation of the article.

FIG. 4 is a plan view showing a relationship between the roller conveyor and a lifting frame.

[Explanation of symbols]

 1 plate-like object (article) 2 carry-in conveyor 3 carry-out conveyor 10 orientation changing device 13 transport path 14 roller conveyor 16 transfer roller 17 grooved roller 17A roller shaft 17B short roller body 18 gap 19 gap 20 entry space 26 belt 27 Upper bearing 28 Lower bearing 29 Vertical axis 30 Vertical axis 33 Vertical axis 33 Lifting frame 35 Rotating motion device 36 Cylindrical body 37 Long hole 38 Pin 40 Cylinder device 43 Cylinder device (elevating motion device) 45 Lifting frame 47 Fixed guide body 50 Movable guide body

Claims (1)

[Scope of utility model registration request] 1. A roller conveyor for loading and unloading articles comprises a group of grooved rollers arranged at a predetermined roller pitch, and these grooved rollers are composed of a plurality of short roller bodies with respect to a roller shaft. By arranging and arranging at intervals of a predetermined pitch, a gap in the roller axis direction between the short roller bodies and a gap in the direction between the roller pitches of the adjacent grooved rollers allow a grid pattern in a plan view. A retractable space is formed, and a retractable lifting frame is provided in the retractable space, and the lifting frame is configured to be rotatable around a vertical axis and vertically movable along the vertical axis. A device for changing the orientation of an article, comprising: a rotating device that interlocks with a lifting frame and a lifting device.