JP2013006657A - Plate for conveying device, method of manufacturing the same, and conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate for a conveying device capable of stably conveying can bodies by preventing can bottom parts from being raised by air and the can bodies from being tilted.SOLUTION: This plate 20 for the conveying device includes a loading surface 21 on which can bodies are placed while the can bottom parts thereof are brought into contact therewith. Air is supplied to a plurality of holes 22 formed in the loading surface 21 to convey the can bodies in such a manner that the can bottom parts thereof are moved along the loading surface 21. The plurality of holes 22 include first holes 22a through which air is jetted to the can bottom parts of the can bodies in the conveying direction F of the can bodies, and second holes 22b through which air is jetted to the can bottom parts of the can bodies in the direction opposite to the conveying direction F. A groove part 23 extending in the conveying direction F of the can bodies is formed in the loading surface 21.

Description

  The present invention relates to a transport device plate used in a transport device that transports a can having a bottomed cylindrical shape, a method for manufacturing the transport device plate, and a transport device including the transport device plate.

  The can body described above includes a cylindrical can body portion and a can bottom portion formed integrally with the lower end of the can body portion, and the can bottom portion includes a recessed portion recessed inward in the can axial direction. And an annular convex portion that is connected to the outer peripheral edge portion of the concave portion and protrudes outward in the can axis direction. As a transport apparatus for transporting such a can body, for example, as shown in Patent Documents 1 and 2, an airflow conveyor has been proposed that transports air by spraying air toward the bottom of the can body.

  In general, this type of air flow conveyor has a plate portion having a mounting surface on which a plurality of holes are formed and a can body is mounted in a state where the bottom of the can (annular convex portion) is grounded, Air supply means that communicates with the holes and supplies air to the holes. The plurality of holes formed in the mounting surface of the plate portion include a first hole for injecting air toward a direction in which the can body is conveyed to the can bottom portion of the can body, By supplying air from the air supply means to the first hole and causing the air to collide with the bottom of the can, the can body is transported so that the bottom of the can is along the surface of the plate portion. Yes.

Here, when many can bodies are filled in the mounting surface of the plate portion, the can bodies are transported relatively stably by the air from the first hole. However, when the number of cans on the mounting surface is small, the cans may be transported at an unnecessarily high speed by the air from the first hole, and may collide with other cans or the like to be deformed. was there.
In view of the above, in the transport apparatuses described in Patent Documents 1 and 2, the placement surface is provided with a second hole for injecting air in a direction opposite to the transport direction of the can body. This prevents the can from being conveyed at a speed higher than necessary.
Moreover, in the conveyance apparatus described in Patent Document 2, in order to prevent the can body from overturning,
A top cover is disposed above the can body.

JP-T 09-501900 JP-A-2005-298101

  By the way, as described above, in the transport apparatus provided with the first hole that ejects air in the transport direction and the second hole that ejects air in the direction opposite to the transport direction, When the air ejected from the hole collides with the bottom of the can, there is a problem that a part of the bottom of the can rises and the can body tilts, and the can body cannot be stably conveyed. As described in Patent Document 2, when the top cover is disposed above the can body, the upper end of the inclined can body may collide with the top cover. In particular, in the case of a bottle can, since the upper part of the can body has a relatively small diameter, there is a possibility that the bottle can be caught by the top cover and cannot be conveyed.

  The present invention has been made in view of the above-described circumstances, and suppresses the can bottom from being lifted by air and tilting the can body, and the transport device plate capable of stably transporting the can body, It aims at providing the manufacturing method of the plate for conveying apparatuses, and the conveying apparatus provided with this conveying plate.

In order to solve the above-described problems and achieve such an object, the present invention proposes the following means.
The plate for a conveying device according to the present invention has a mounting surface on which the can body is mounted in a state where the bottom of the can is grounded, and supplies air to a plurality of holes formed on the mounting surface. The transport device plate is configured to transport the can body so that the bottom portion of the can body follows the mounting surface, wherein the plurality of holes are transported to the bottom portion of the can body. A first hole for injecting air in the direction, and a second hole for injecting air in the direction opposite to the transport direction at the bottom of the can body. A groove portion extending in the conveying direction of the can body is formed.

In the transport apparatus plate having this configuration, since the groove portion extending in the transport direction is formed on the mounting surface on which the can body is mounted, the first hole and the second hole are directed toward the bottom of the can. A part of the jetted air can be released to the groove portion, and it is possible to prevent an excessive force from acting on the can body, and it is possible to prevent the can body from being lifted by the air and tilting the can body. Therefore, the can can be prevented from falling without providing a top cover.
Further, since the groove portion extends in the conveying direction, it is possible to prevent the air ejected from the first hole and the second hole from colliding with the side surface of the groove portion and heading in an irregular direction. The body can be reliably transported in the transport direction. Furthermore, since the contact area between the can body and the mounting surface is reduced by the groove portion, the can body can be reliably conveyed even if the amount of air ejected from the first hole is reduced.

Here, it is preferable that a plurality of the groove portions are formed on the mounting surface, and the interval between the adjacent groove portions is set to be narrower than the outer dimension of the ground contact portion of the can bottom.
In this case, the groove portion can be reliably disposed below the can body placed on the placement surface, and the can body can be stably conveyed.

Further, it is preferable that the second hole is disposed in the groove portion.
In this case, a part of the air ejected from the second hole can be surely escaped to the groove portion, and the can bottom is surely suppressed from being lifted by the air ejected from the second hole and tilting the can body. it can.

The manufacturing method of the transport apparatus plate according to the present invention is a transport apparatus plate manufacturing method for manufacturing the transport apparatus plate described above, and includes a groove section forming step of forming the groove section on the surface of the plate material, and the groove section. And a hole forming step of forming the first hole and the second hole in the formed plate material.
According to the manufacturing method of the transport apparatus plate having this configuration, since the first hole and the second hole are formed after the groove portion is formed, burrs or the like are generated around the first hole and the second hole. This can be suppressed, and the first hole and the second hole can be formed with high accuracy.

The transport apparatus according to the present invention includes the above-described transport apparatus plate and air supply means for supplying air to the plurality of holes formed in the transport apparatus plate.
In this case, since a part of the air jetted from the first hole and the second hole escapes to the groove portion, an excessive force does not act on the can body, and the can bottom portion is lifted by the air and the can body is inclined. This can be suppressed and the can can be transported stably.

Here, the air supply means includes a pressurized air tank disposed on a surface opposite to the mounting surface of the transport device plate, and the plurality of holes communicate with the pressurized air tank. Preferably it is.
In this case, since the plurality of holes communicate with the pressurized air tank, it is possible to supply air to these holes with high efficiency.

  According to the transport apparatus plate, the transport apparatus plate manufacturing method, and the transport apparatus according to the present invention, the can bottom can be prevented from being lifted by air and the can body can be prevented from being inclined, and the can body can be transported stably. .

It is a schematic block diagram of the conveying apparatus provided with the plate for conveying apparatuses which is embodiment of this invention. It is a perspective view of the plate for conveyance apparatuses which is embodiment of this invention. FIG. 3 is a cross-sectional view taken along the line XX in FIG. 2. It is expansion explanatory drawing of the 1st hole and can which were formed in the plate for conveying apparatuses which is embodiment of this invention. It is expansion explanatory drawing of the 2nd hole and can which were formed in the plate for conveying apparatuses which is embodiment of this invention. It is an enlarged explanatory view showing the positional relationship between the plate for a transport device and the can body according to the embodiment of the present invention. It is expansion explanatory drawing which shows the positional relationship of the plate for conveying apparatuses which is other embodiment of this invention, and a can.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIG. 1, the transport device according to the present embodiment transports a can body filled with drinking water or the like in a vertically placed state.

First, the conveyed can 30 will be described with reference to FIGS. 4 and 5.
The can body 30 includes a cylindrical can body portion 31 and a can bottom portion 32 formed at the lower end of the can body portion 31. The can bottom portion 32 includes a dome portion 33 that is recessed inward in the can axis direction, and an annular convex portion 34 that is connected to the outer peripheral edge portion of the dome portion 33 and protrudes outward in the can axis direction. Is provided. The annular protrusion 34 includes a tip nose portion 34a, an inner peripheral wall 34b radially inward of the nose portion 34a, and an outer peripheral wall 34c radially outward of the nose portion 34a. The inner peripheral wall 34b is connected to the dome portion 33 via the annular concave curved surface portion 35, and the nose portion 34a is connected to the can body portion 31 via the outer peripheral wall 34c.

  Next, the transport device 10 will be described. A transport apparatus 10 shown in FIG. 1 includes a transport apparatus plate 20 having a mounting surface 21 on which a can 30 is mounted, an air supply unit 11 installed below the transport apparatus plate 20, and a mounting apparatus. And a side guide 18 that guides the can 30 placed on the surface 21.

The air supply means 11 includes a first pressurized air tank 12 disposed on the lower surface of the transport device plate 20, and a second pressurized air tank 13 disposed on the lower surface of the first pressurized air tank 12. The air supply pipe 14 is provided on the lower surface of the second pressurized air tank 13 and communicated with an air pump (not shown). In this embodiment, as shown in FIG. 1, the 1st pressurized air tank 12 is divided | segmented into plurality.
A damper 15 is disposed at a communicating portion between the first pressurized air tank 12 and the second pressurized air tank 13 and is supplied from the second pressurized air tank 13 to the first pressurized air tank 12. The amount of air E can be adjusted. In this embodiment, the damper 15 is each arrange | positioned at the divided | segmented 1st pressurized air tank 12, and the structure which can adjust the pressure of air for every divided | segmented 1st pressurized air tank 12 is possible. It is said that.

  As shown in FIG. 2, the transport apparatus plate 20 has a placement surface 21 on which the can 30 is placed, and a plurality of holes 22 are formed in the placement surface 21. The plurality of holes 22 includes a first hole 22a for injecting air toward the conveyance direction F of the can 30 and a second hole 22b for injecting air toward the opposite side to the conveyance direction F. ing.

A plurality of grooves 23 extending in the transport direction F are formed on the mounting surface 21 of the transport apparatus plate 20 as shown in FIG.
As shown in FIGS. 3 and 6, the groove width W of the groove portion 23 is smaller than the radius D / 2 of the annular convex portion 34 of the can 30, and is in the range of 3 mm ≦ W ≦ 7 mm. . In this embodiment, W = 5 mm. Further, the groove depth H of the groove portion 23 is set in a range of 0.5 mm ≦ H ≦ 1.5 mm.
Further, the interval P between the adjacent groove portions 23 is set to be narrower than the outer dimension of the can bottom portion 32, that is, the diameter D of the annular convex portion 34, and is in the range of 8 mm ≦ P ≦ 25 mm. In the present embodiment, P = 10 mm.

Here, in the present embodiment, as shown in FIGS. 2 and 6, the first hole 22 a is formed in a portion other than the groove portion 23, and the second hole 22 b is formed in the groove bottom of the groove portion 23. ing.
The pitch in the transport direction F of the first holes 22a and the pitch in the transport direction F of the second holes 22b are the same. However, as shown in FIG. 6, in the transport direction F, the first holes 22 a and the second holes 22 b are arranged at different positions.

As shown in FIG. 4, the first hole 22 a is a nozzle hole formed in the mounting surface 21 of the transport apparatus plate 20 in a direction inclined from upstream to downstream with respect to the transport direction F. ing. The first hole 22a communicates with the first pressurized air tank 12 described above.
Here, the inclination angle θ1 of the first hole 22a with respect to the vertical axis perpendicular to the mounting surface 21 of the transport device plate 20 is in the range of 30 ° ≦ θ1 ≦ 60 °, and in this embodiment, θ1 = 45. It is °. Further, the hole diameter d1 of the first hole 22a is in the range of 2.0 mm ≦ d1 ≦ 4.0 mm, and d1 = 3.2 mm in the present embodiment.

As shown in FIG. 5, the second hole 22b is a nozzle hole formed in the mounting surface 21 of the transport apparatus plate 20 in a direction inclined from the downstream to the upstream with respect to the transport direction F. ing. The second hole 22b communicates with the first pressurized air tank 12 described above.
Here, the inclination angle θ2 of the second hole 22b with respect to the vertical axis orthogonal to the mounting surface 21 of the transport device plate 20 is in the range of 30 ° ≦ θ2 ≦ 60 °, and in this embodiment, θ2 = 45 °. It is said that. The hole diameter d2 of the second hole 22b is in the range of 1.0 mm ≦ d2 ≦ 3.0 mm, and d2 ≦ d1 with respect to the hole diameter d1 of the first hole 22a. In this embodiment, d2 = 2.4 mm.

Next, a method for manufacturing the above-described transport device plate 20 will be described.
First, a plate-shaped plate material is prepared, and a groove portion 23 is formed on one surface of the plate material by an end mill or the like (groove portion forming step). Then, the first hole 22a is formed in a portion other than the groove 23 by a drill or the like, and the second hole 22b is formed in the groove bottom of the groove 23 (hole forming step).
In this way, the transport device plate 20 in which the groove 23 and the plurality of holes 22 (the first hole 22a and the second hole 22b) are formed is manufactured.

Next, a method for transporting the can 30 with the transport device 10 having the above-described configuration will be described.
First, the can 30 is placed on the placement surface 21 of the transport device plate 20. At this time, the annular convex portion 34 (nose portion 34 a) of the can body 30 is grounded to the placement surface 21.
Here, as shown in FIG. 6, since the plurality of groove portions 23 are formed on the placement surface 21, only a part of the annular convex portion 34 comes into contact with the placement surface 21. In the example shown in FIG. 6, for example, the diameter D of the annular convex portion 34 is 55 mm, the groove width W is 5 mm, the interval P between the groove portions 23 is 10 mm, and the ground contact length of the annular convex portion 34 is annular convex. It is about 35.3% of the entire portion 34.

  Next, air E is supplied from the air pump (not shown) to the second pressurized air tank 13 through the air supply pipe 14. Air E is supplied from the second pressurized air tank 13 to the first pressurized air tank 12 via the damper 15. At this time, the internal pressure of the first pressurized air tank 12 is adjusted by the opening degree of the damper 15.

The air E supplied to the 1st pressurized air tank 12 is ejected from the mounting surface 21 of the plate 20 for conveyance apparatuses through the some hole 22 (1st hole 22a and 2nd hole 22b). It will be.
At this time, as shown in FIG. 4, the air E from the first hole 22 a is transported in the transport direction F with respect to the portion located on the downstream side in the transport direction F of the inner peripheral wall 34 b of the annular protrusion 34 and the dome 33. Collide towards Further, as shown in FIG. 5, the air E from the second hole 22 b flows in the conveyance direction F with respect to the portion located on the upstream side in the conveyance direction F and the dome portion 33 on the inner peripheral wall 34 b of the annular protrusion 34. Collide in the opposite direction.

  Here, the hole diameter d1 of the first hole 22a is set larger than the hole diameter d2 of the second hole 22b, and the first pressurized air tank 12 has the same first hole 22a and second hole 22b. Therefore, the thrust acting on the can 30 in the transport direction F through the first hole 22a is larger than the thrust acting in the direction opposite to the transport direction F through the second hole 22b. . Thereby, the can 30 is conveyed toward the conveyance direction F.

As described above, according to the transport device plate 20 and the transport device 10 according to the present embodiment, the groove portion 23 extending in the transport direction F is formed on the placement surface 21 on which the can body 30 is placed. Therefore, a part of the air E ejected from the first hole 22a and the second hole 22b escapes to the groove portion 23, so that an excessive force does not act on the can body 30, and the can bottom portion 32 is caused by the air E. Can be prevented from rising and the can body 30 from being inclined.
In particular, in the present embodiment, since the second hole 22b for ejecting air E toward the opposite side to the transport direction F is formed in the groove bottom of the groove 23, the air from the second hole 22b E becomes easy to escape to the groove part 23, and it can suppress reliably that the can body 30 floats up and the can body 30 inclines with the air injected from the 2nd hole 22b.
Therefore, the can 30 can be prevented from falling without providing a top cover.

Moreover, since the groove part 23 is extended in the conveyance direction F, the air injected from the 1st hole 22a and the 2nd hole 22b collides with the side surface of the groove part 23, and it goes to an irregular direction. The can 30 can be reliably conveyed in the conveyance direction F.
Furthermore, since the groove part 23 is formed in the mounting surface 21, the contact area of the can 30 and the mounting surface 21 is small. In this embodiment, as shown in FIG. Since the contact length of the portion 34 is about 35.3% of the entire annular convex portion 34, the can 30 can be transported even if the amount of the air E ejected is reduced.

The interval P between the adjacent groove portions 23 is set to be narrower than the outer dimension of the ground contact portion of the can bottom portion 32, that is, the diameter D of the annular convex portion 34, and is in the range of 8 mm ≦ P ≦ 25 mm. Therefore, the groove part 23 can be reliably arrange | positioned under the can 30 arrange | positioned on the mounting surface 21, and the can 30 can be conveyed stably.
Furthermore, in this embodiment, since the groove width W of the groove part 23 is made smaller than the radius D / 2 of the annular convex part 34 of the can body 30, the can body 30 can be conveyed stably.

Further, in the transport apparatus 10 according to the present embodiment, the air supply means 11 includes a first pressurized air tank 12, and the first pressurized air tank 12 has a first hole 22a and a second hole. Since 22b is connected, air can be efficiently supplied with respect to the 1st hole 22a and the 2nd hole 22b.
Furthermore, in this embodiment, since the 1st pressurized air tank 12 is divided | segmented and the damper 15 is arrange | positioned for every divided | segmented 1st pressurized air tank 12, the 1st pressurized air tank 12 of It becomes possible to adjust the internal pressure with high accuracy.

  Moreover, in the manufacturing method of the conveying apparatus plate 20 according to the present embodiment, the first hole 22a and the second hole 22b are formed after the groove portion 23 is formed in the plate material. Generation | occurrence | production of a burr | flash etc. can be suppressed around 22a and the 2nd hole 22b, and the 1st hole 22a and the 2nd hole 22b can be formed with sufficient precision.

As mentioned above, although embodiment of this invention was described, this invention is not limited to this, It can change suitably in the range which does not deviate from the technical idea of the invention.
For example, the second hole has been formed in the groove bottom of the groove portion, but the present invention is not limited to this. As shown in FIG. Holes 122a and second holes 122b) may be provided.

  Further, the groove width W of the groove portions and the interval P between the adjacent groove portions are not limited to this embodiment, and may be appropriately changed. For example, as shown in FIG. 7, when the groove width W of the groove portion 123 is W = 5 mm, the interval P between adjacent groove portions 123 is P = 12.5 mm, and the diameter D of the annular convex portion 34 is D = 55 mm Therefore, the ground contact length of the annular protrusion 34 is 72.1% of the entire annular protrusion 34. Even in this case, the can 30 can be stably conveyed.

DESCRIPTION OF SYMBOLS 10 Conveyance apparatus 11 Air supply means 12 1st pressurized air tank (pressurized air tank)
20 Transport device plate 21 Placement surface 22, 122 Plural holes 22a, 122a First hole 22b, 122b Second hole 23, 123 Groove 30 Can body 32 Can bottom

Claims (6)

The can body has a mounting surface on which the bottom of the can is grounded, and air is supplied to a plurality of holes formed in the mounting surface, so that the can bottom can be It is a plate for a transport device configured to transport along the placement surface,
The plurality of holes includes a first hole that injects air toward a can bottom portion of the can body in a direction in which the can body is transported, and air that is directed toward the can bottom portion of the can body in a direction opposite to the transport direction. A second hole for spraying,
A conveying device plate, wherein a groove portion extending in a conveying direction of the can body is formed on the mounting surface.   The said mounting surface is formed with two or more said groove parts, The space | interval of the said adjacent groove parts is set narrower than the external dimension of the grounding part of the said can bottom part. Plate for the transport device.   The transport device plate according to claim 1, wherein the second hole is disposed in the groove. It is a manufacturing method of the plate for conveyance devices which manufactures the plate for conveyance devices according to any one of claims 1 to 3,
A groove portion forming step for forming the groove portion on the surface of the plate material; and a hole forming step for forming the first hole and the second hole in the plate material on which the groove portion is formed. The manufacturing method of the plate for conveying apparatuses.   4. The transport device plate according to claim 1, and an air supply unit that supplies air to the plurality of holes formed in the transport device plate. A transport device.   The air supply means includes a pressurized air tank disposed on a surface opposite to the mounting surface of the transport device plate, and the plurality of holes communicate with the pressurized air tank. The transport apparatus according to claim 5, wherein

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