JP2001151337A - Method of rotationally transferring commodity - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously perform horizontal rotation and transfer of a commodity by giving a difference in speed between a pair of parallel transfer planes forming a transfer passage for the commodity and determining directions with guides or the like. SOLUTION: The pair of right and left transfer planes 10a, 10b long in one direction and parallel to each other forms the transfer passage 1 for commodity 2. The transfer planes 10a, 10b are composed of two conveyors 11, 12 having fast and slow transfer speeds. Guide members 15, 16 for the commodity 2 are arranged at both sides of the transfer passage. The commodity 2 on the transfer passage 1, placed over both transfer planes between the guide members, is rotationally transferred at different transfer speeds via both conveyors and the guide members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transporting cylindrical or columnar articles such as packaging containers by a conveyor while rotating horizontally in an upright state on a plane.

[0002]

In the case of articles such as packaging containers, it is necessary to inspect the molding condition and appearance during the transfer process, or to carry out surface processing, drying, heat shrink wrapping after filling the contents, and the like. It is often transferred while rotating.

Conventionally, an article is placed horizontally on a turntable by forcibly rotating it by a gear device or a roller device, or by gripping or contacting parts other than the bottom surface of the article with parts or the like. The transfer was performed while rotating.
In such conventional means, the apparatus becomes complicated as compared with the article to be handled, and not only the manufacturing cost is increased, but also ancillary equipment such as positioning at the time of transferring the article to the conveyor is required, so it is unexpectedly expensive. It was easy. There are also problems in the finished state of the surface treatment, drying, heat shrink wrapping with a film, and the like of the article, and a method that enables simultaneous horizontal rotation and transfer of the article by a simple method is desired.

The present invention has been made in view of the above circumstances. It is an object of the present invention to form an article transfer path with a pair of parallel left and right transfer surfaces, and to provide a difference in transfer speed between the two transfer surfaces. It is an object of the present invention to provide a new method of rotating and transferring an article, such as a cylinder or a column, or a sphere, which can simultaneously perform both the rotation and the transfer of the article by simply causing the article on the transfer path to rotate naturally. .

[0005]

SUMMARY OF THE INVENTION According to the present invention, a transfer path for articles is formed by a pair of left and right transfer surfaces which are long and parallel in one direction, and the transfer surfaces are provided with two speeds. In addition to the configuration of the conveyor, article guide members are provided on both sides of the transfer path surface, and the articles on the transfer path placed over both transfer surfaces between the guide members are rotated by the difference in transfer speed between the two conveyors and the guide member. The one transfer surface is formed of a stationary plate.

According to another aspect of the present invention, an article transfer path is formed with a pair of left and right transfer surfaces that are long and parallel in one direction, and the two transfer conveyors having transfer speeds that are gently inclined inward to each other. And transporting the articles on the transfer path placed over the transfer surface while rotating by the difference between the transfer speeds of the two conveyors and the inclined transfer surface, and the one transfer surface is stationary. It also consists of a plate.

Further, according to the present invention, a transfer path for articles is formed by a pair of left and right transfer surfaces which are long and parallel in one direction, and one of the transfer surfaces is a horizontal and stationary plate, and the other is gently inclined inwardly. A guide member is disposed on a horizontal transfer surface, and articles on a transfer path placed over both transfer surfaces inside the guide member are transferred by a transfer speed difference between the transfer surfaces and the guide member. In this case, the transfer is performed while rotating horizontally, and the one horizontal transfer surface is formed by a slow-speed conveyor.

The basic requirement of the present invention having the above structure is that an article transfer path is formed by a pair of left and right transfer surfaces which are long and parallel in one direction, and the articles are transferred by setting a speed difference on the transfer surfaces. That is. Since the horizontal rotation of the articles generated during the transfer process has an unstable direction and tends to meander, the articles are oriented and stabilized by employing means such as a guide member or an inclined surface.

Therefore, according to the present invention, there is no need for a device for horizontally rotating articles other than the above-mentioned means, and the driving means of the transfer device can be made compact with no significant change as compared with a normal conveyor. It is easy to transfer to a conveyor before and after the transfer path, and since there is no need for ancillary equipment such as positioning, it can be widely used as a transfer means for surface processing, drying, heat shrink wrapping with film, etc. This method can be said to be a suitable method as a work transfer means of a heat shrink wrapping apparatus in which uniform heating of a wrapping film for covering wrapping is desired.

[0010] In addition to the belt conveyor, slat conveyors, top chain conveyors,
A conveyor whose transfer surface is formed almost flat by a chain conveyor or the like can be applied, and the material forming the transfer surface is also made of metal such as wood, plastic, iron or stainless steel, including the stationary plate. Can be adopted. Therefore, in the embodiments described below, a belt conveyor and a metal plate are employed, but the present invention is not particularly limited thereto.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows several devices which make it possible to carry out the rotary transfer method according to the invention.
Is a transfer path for the article 2 and is formed by a pair of left and right transfer surfaces 10a and 10b which are long and parallel in one direction.

In the first transfer device shown in FIGS. 1 and 2,
The transfer surfaces 10a and 10b are constituted by two belt conveyors 11 and 12 which are horizontally arranged at a required interval. The two belt conveyors 11, 12 are provided with separate drive motors 13, 14, respectively.
The transfer speed can be arbitrarily set by the rotation control 14.

A pair of plate-like guide members 15 and 16 are provided on both sides of the transfer path formed by the upper surfaces of the belts of the two belt conveyors 11 and 12 with a diameter slightly larger than the diameter of the cylindrical or columnar article 2. With a large space,
The article 2 is placed parallel to the longitudinal direction so that the article 2 can be placed on both transfer surfaces 10a and 10b between the guide members.

In the transfer device having such a configuration, the belt conveyors 11 and 12 are connected to the respective drive motors 1 and 2.
When moved at the same transfer speed by 3 and 14, the article 2 on the transfer road surface is transferred in a stationary state without horizontal rotation, but one of the transfer speeds is set slower than the other, Transfer speed is slow (for example, 5m / min on the left side,
(10 m / min on the right), the half placed on the fast side of the article 2 will be sent before the half on the slow side.

Due to this advance phenomenon, the article 2 rotates to the slow speed side, and since the guide members 15 and 16 prevent the meandering due to the rotation, the article 2 rotates horizontally on the transporting road surface. Both belt conveyors 1
It is transported by 1,12. The number of rotations of the article 2 varies depending on the speed difference, and the more the difference, the easier it is to rotate, but it is preferable that the speed difference is set appropriately according to the transport distance.

A second transfer device, which is schematically shown in FIG. 3, comprises a pair of left and right two belt conveyors 11, 1 long and parallel in one direction.
2 are slanted inwardly at an angle of 5 ° or less with respect to each other to form the transfer surfaces 10a and 10b of the transfer path 1 for the articles 2, and the first transfer speed is adjusted to the transfer speed of the belt conveyors 11 and 12. By making the same speed difference as the device,
It has a structure in which the article 2 placed on both the transfer surfaces 10a and 10b is transferred while rotating horizontally.

In such a second transfer device, the transfer surface 1
Since 0a and 10b are formed with a V-shaped inclined surface, the peripheral edge of the bottom surface of the article 2 is always supported by the inclined surface, and the supporting point does not shift in any direction during rotation. A guide member for meandering prevention required in the transfer device is not required.

The third transfer device schematically shown in FIG. 4 has an intermediate structure between the first and second transfer devices, and has a pair of left and right transfer surfaces 10a and 10b, and one transfer surface 10a has The horizontal and stationary metal plate 17 allows the other transfer surface 1
Ob is formed by a belt conveyor 12 which is gently inclined inward (5 ° or less), and a guide member 15 is disposed on a horizontal transfer surface 10a so that the articles 2 on the transfer path can be transferred while being horizontally rotated. It was made. In this case, the receiving edge 15a is formed inside the guide member 15 so that the frictional resistance with the metal plate 17 is reduced and the bottom edge of the article 2 is positioned on the receiving edge 15a.

In such a configuration, the metal plate 17 is stationary and the speed is zero, and only the belt conveyor 12 has a speed. Has a speed difference, so that the article 2 placed over both the transfer surfaces 10a and 10b is transferred while being horizontally rotated by the transfer speed difference generated there and the guide member 15.

In the third transfer device, although not shown in the drawing, one transfer surface 10a of the metal plate 17 is constituted by a belt conveyor, and the belt conveyor is normally used in a stationary state. The number of rotations of the article 2 can be controlled by slowly moving the conveyor.

In the first and second transfer devices, as shown in FIGS. 4 and 5, one transfer surface 10a is also provided.
Is replaced with a metal plate 17 in a stationary state, and the article 2 on the transport path 1 is transported while rotating horizontally with a relative speed difference between the stationary transport surface and the movement of the other transport surface by the belt conveyor. be able to.

In any of the above embodiments, the means for transferring the article 2 is almost the same as that of a normal belt conveyor. The transfer path by the conveyor is simply changed to the transfer path according to the present invention, so that the article 2 can be easily transferred in one direction while rotating horizontally.

FIG. 6 shows an example of a heat shrink wrapping apparatus employing the first transfer device. In the figure, reference numeral 110 denotes a work table on which a tunnel-shaped heat shrink chamber 111 is provided. The wall portion of the heat shrink chamber 111 is formed as a hot air duct 112 having a circulating double structure.
2, a heater 113 is disposed in the upper portion of the heat shrink chamber 111, and the air blown by the blower motor 114 installed in the upper portion of the heat shrink chamber 111 is heated by the heater 113 to be applied to the inner wall surface 115 of the hot air duct 112. Hot air is blown into the inside of the heat shrink chamber 111 from countless air holes evenly formed.

On the work table 110 at the center of the heat shrink chamber 111, the first transfer device shown in FIGS.
It is provided in the longitudinal direction like a normal belt conveyor.
Heat shrink chamber 1 by the two belt conveyors 11 and 12
Articles such as columnar containers placed on the transfer path on the entrance side of 11,
That is, the work 116 is composed of the two belt conveyors 11 and 12 having different transfer speeds and a pair of guide members 15 and 15 arranged in parallel on both sides of the upper surface of the transfer path, although omitted in FIG.
16 and fed into the heat shrinkage chamber 111 while rotating horizontally with the packaging film previously coated.

In the heat shrink chamber 111, since the hot air is constantly blown from both sides of the hot air duct 112 and the lower inner wall surface 115, the work 116 is heated by the hot air while rotating horizontally and passes therethrough. During that time, the packaging film shrinks by heating and comes into close contact with the surface of the work 116. Since this heat shrinkage is performed by rotating the work 116 horizontally, any side surface of the work 116 continuously faces the inner wall surface 115 from which the hot air blows out during the transfer, and as a result, the packaging film at that portion is similarly heated, The time during which hot air is blown is longer than before. For this reason, it is possible to shorten the length of the heat shrinkage chamber 111 by setting the work transfer process to be short, and to achieve energy saving by reducing the size of the heat shrink wrapping device and improving the heating efficiency.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a first transfer device which enables a method for rotating and transferring an article according to the present invention.

FIG. 2 is a longitudinal end view of the same.

FIG. 3 is a schematic sectional view of a second transfer device.

FIG. 4 is a schematic sectional view of the third transfer device.

5 is a schematic cross-sectional view when one transfer surface of the transfer device in FIG. 2 is a metal plate.

FIG. 6 is a schematic vertical sectional view of a heat shrink wrapping apparatus employing the rotary transfer method of the present invention.

[Explanation of symbols]

 Reference Signs List 1 transfer path 2 articles 10a, 10b transfer surface 11, 12 belt conveyor 13, 14 drive motor 15, 16 guide member 17 metal plate 110 work table 111 heat shrink chamber 112 hot air duct 113 heater 114 blower motor 115 inner wall surface 116 work

Claims (5)

[Claims] A transfer path for articles is formed by a pair of left and right transfer surfaces which are long and parallel in one direction, and the transfer surfaces are constituted by two conveyors having transfer speeds gradual and on both sides of the transfer path surface. An article wherein a guide member for articles is provided, and articles on a transfer path placed over both transfer surfaces between the guide members are transferred while being horizontally rotated by a difference in transfer speed between the two conveyors and the guide member. Rotary transfer method. 2. An article transfer path is formed by a pair of left and right transfer surfaces that are long and parallel in one direction, and the two transfer conveyors having transfer speeds that are gently inclined inwardly from each other. A method of transferring articles on a transfer path placed over the transfer surface while horizontally rotating the articles by a difference in transfer speed between both belt conveyors and an inclined transfer surface. 3. The method according to claim 1, wherein one of the transfer surfaces is a stationary plate. 4. An article transfer path is formed by a pair of left and right transfer surfaces that are long and parallel in one direction, and one of the transfer surfaces is a horizontal and stationary plate body, and the other is a conveyer that is gently inclined inward. The guide member is arranged on a horizontal transfer surface, and the articles on the transfer path placed over both transfer surfaces inside the guide member are horizontally rotated by the difference in transfer speed between the two transfer surfaces and the guide member. A method for rotating and transferring articles while transporting the articles. 5. The method according to claim 4, wherein said one horizontal transfer surface comprises a slow-speed conveyor.