JP5293363B2 - Pallet centrifugal dehydrator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a centrifugal dewatering device for a pallet, reducing centrifugal force and minimizing replacement of change of forms. <P>SOLUTION: This centrifugal dewatering device 1 for the pallet has: a lower holder 14 for holding a side face 2b positioned at a lower part of the pallet 2; and an upper holder 15 for holding a side face positioned at an upper part of the pallet, and the side faces of the pallet respectively have ribs 2d formed at the center, and at least two insertion holes 2c formed across the ribs. The lower holder has a lower supporting member 31 kept into contact with a lower side face of the pallet, the upper holder has an upper supporting member 41 kept into contact with an upper side face of the pallet, and the lower supporting member 31 and the upper supporting member 41 respectively have two lower engagement projections 34 and two upper engagement projections 43 projecting to the pallet side and inserted into the insertion holes across the ribs. As a result, the centrifugal force caused by rotation of the pallet is reduced, the a plurality of kinds of pallets are held without changing forms. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a pallet centrifugal dewatering device, and more specifically, a pair of holders that hold opposed side surfaces of a pallet on which an article placement surface is formed and support the pallet on a rotation axis parallel to the article placement surface. Further, the present invention relates to a pallet centrifugal dewatering device including rotation means for rotating the holder to rotate the pallet on the rotation shaft.

Conventionally, a pair of holders that hold opposed sides of a pallet on which an article placement surface is formed and support the pallet on a rotation axis parallel to the article placement surface, and rotate the pallet by rotating the holder. There is known a pallet centrifugal dewatering device including a rotating means for rotating on a shaft.
As such a pallet centrifugal dehydrator, a lower holder for holding a side surface located below the pallet and an upper holder for holding a side surface located above the pallet are rotated while the pallet is held in an upright state. By doing so, the cleaning liquid adhering to the pallet is removed (Patent Document 1).

JP 2008-45848 A

However, in the case of the pallet centrifugal dewatering apparatus of Patent Document 1, the lower holder and the upper holder are formed so as to cover the entire upper and lower side surfaces of the pallet. Must be the same or longer than the side of the pallet.
For this reason, when the pallet is rotated by the rotating means, a large centrifugal force is generated by the lower holder and the upper holder, a high output motor is required, or the entire apparatus is designed to have a strength that can withstand the centrifugal force. There was a problem of high costs such as necessity.
In addition, there are many types of pallets. When an attempt is made to process a plurality of types of pallets using the pallet centrifugal dewatering apparatus disclosed in Patent Document 1, the upper holder and the lower holder are provided in accordance with the outer dimensions of the pallet. Therefore, there is a limit to the pallet that can hold the upper holder and the lower holder without changing the mold, and there is a problem that the mold needs to be changed in many cases.
In view of such a problem, the present invention provides a pallet centrifugal dewatering apparatus that can reduce centrifugal force and eliminates mold change as much as possible.

That is, the pallet centrifugal dewatering device according to the present invention includes a pair of holders that hold opposite sides of the pallet on which the article placement surface is formed and support the pallet on a rotation axis parallel to the article placement surface; In the pallet centrifugal dewatering device provided with rotating means for rotating the holder and rotating the pallet on the rotating shaft,
On the side surface of the pallet, a rib formed in the center and at least two insertion holes formed across the rib are formed,
Each of the holders includes a support member that abuts the side surface of the pallet, and the holder protrudes from the support member to the pallet side and is inserted into the insertion hole with the rib interposed therebetween. A plurality of engaging projections are provided.

According to the present invention, since the engaging protrusion holds the central portion of the pallet so as to sandwich the rib located at the rotation center of the pallet, the length of the supporting member may be adjusted to the width of the engaging protrusion. With no need to cover the entire side of the pallet.
As a result, the centrifugal force generated when the holder is rotated can be reduced, the motor can have a low output, and the strength of the entire apparatus can be reduced. It becomes possible.
In addition, since there are few types of fork insertion hole arrangement dimensions compared to the types of external dimensions on pallets, depending on the width of the ribs formed between these insertion holes, pallets with different external dimensions can be used. Even if it exists, it is possible to hold | maintain without requiring a mold change, and it is possible to avoid performing a mold change as much as possible.

The front view which shows the conveyance state of a pallet centrifugal dehydration apparatus. The front view which shows the dehydration state of a pallet centrifugal dehydration apparatus. Sectional drawing of the III-III part in FIG. The perspective view which shows a pallet. The enlarged side view about a lower holder and an upper holder. The top view about a lower holder.

1 to 3 show a pallet centrifugal dewatering device 1, FIG. 1 shows a state in which the pallet 2 is transported by the pallet centrifugal dewatering device 1, and FIG. 2 shows a pallet 2 by the pallet centrifugal dewatering device 1. FIG. 3 is a sectional view taken along the line III-III in FIG.
FIG. 4 shows a pallet 2 to be dewatered by the pallet centrifugal dewatering apparatus 1, and this pallet 2 has two article placement surfaces 2a formed on the front and back surfaces for placing the cargo, and these article placements. It comprises four side surfaces 2b formed between the placement surfaces 2a.
Further, each side surface 2b of the pallet 2 is provided with two insertion holes 2c into which forks of the forklift are inserted, and ribs 2d formed between the two insertion holes 2c.
Such a pallet 2 is widely used in general, but its external dimensions are not unified, and various pallets 2 having different external dimensions of width, length, and height are known. On the other hand, the arrangement size of the insertion hole 2c is a common size in many pallets, and the width of the rib 2d is also common in many cases.
The pallet centrifugal dewatering device 1 is provided on the downstream side of a pallet washing device (not shown), and the pallet 2 is placed on the pallet 2 from the pallet washing device in an upright state with the article placement surface 2a vertical. It is conveyed in a direction parallel to the surface 2 a and supplied to the pallet centrifugal dehydrator 1.

The pallet centrifugal dewatering device 1 includes a housing 11, a lower conveying means 12 that conveys the lower side surface 2b of the pallet 2 in the conveying state, and an upper conveying guide that supports the upper side surface 2b of the pallet 2 in the conveying state. 13, a lower holder 14 that holds the lower side surface 2b of the pallet 2 in the dehydrated state, an upper holder 15 that holds the upper side surface 2b of the pallet 2 in the dehydrated state, and a rotating means 16 that rotates the lower holder 14. And an elevating means 17 for elevating and lowering the upper conveyance guide 13 and the upper holder 15.
The housing 11 is composed of a plurality of frames, and in the left-right direction in FIG. 1, a carry-in port and a carry-out port that are opened and closed by an opening / closing door (not shown) are formed. The guide member 11a is provided so as to maintain the above.
In addition, transparent acrylic or the like is attached to the other portions of the housing 11 so that the cleaning liquid does not scatter.
As shown in FIG. 3, an elevating frame 21 constituting the elevating means 17 is provided on the upper portion of the housing 11, and the elevating frame 21 extends along a pair of rails 11 b provided on the housing 11 in the vertical direction. Can be moved up and down.
Further, the lifting means 17 includes two sets of sprockets 22 provided at the upper and lower positions across the lifting frame 21, a motor 23 for driving the sprocket 22 provided on the upper portion of the housing 11, and the two sets of sprockets 22. And a chain 24 stretched between them.
Both ends of the chain 24 are connected to the elevating frame 21, and the motor 23 rotates the sprocket 22 to raise and lower the elevating frame 21 to the raised position shown in FIG. 1 and the lowered position shown in FIG. 2. It is like that.
Here, the ascending position and the descending position of the elevating frame 21 are appropriately set according to the external dimensions of the pallet 2.

The lower conveying means 12 is composed of two conveyors 12a provided on the upstream side and the downstream side in the conveying direction with the lower holder 14 interposed therebetween, and each conveyor 12a conveys the pallet 2 by the driving force of the motor 12b. It has become.
Each conveyor 12a is swingably provided with an end opposite to the lower holder 14 side as a fulcrum, and a lower retracting means 12c made of an air cylinder is provided on the lower surface of each conveyor 12a.
In the transport state of the pallet centrifugal dehydrator 1 shown in FIG. 1, the lower retracting means 12c positions the end of the conveyor 12a on the lower holder 14 side at the rising end position so that the transport surface of the pallet 2 is horizontal. .
On the other hand, in the dewatering state of the pallet centrifugal dewatering apparatus 1 shown in FIG. 2, the lower retracting means 12c lowers the end of the conveyor 12a on the lower holder 14 side to the lower end position so as not to interfere with the rotating pallet 2.
Further, the pallet 2 is held by the lower holder 14 by swinging the conveyor 12a from the raised end position to the lowered end position by the lower retracting means 12c from the state where the pallet 2 is placed at the required position of the lower conveying means 12. I have to.

The upper transport guide 13 is provided on the elevating frame 21 and is provided upstream and downstream in the transport direction with the upper holder 15 interposed therebetween.
Each upper transport guide 13 includes four free rollers 13a aligned in the transport direction of the pallet 2 and a case 13b that holds the free rollers 13a. The case 13b is an air cylinder provided on the elevating frame 21. It can be moved up and down by an upper retracting means 13c.
In the conveying state of the pallet centrifugal dewatering apparatus 1 shown in FIG. 1, the elevating frame 21 is located at the ascending position, while the upper retracting means 13c lowers the upper conveying guide 13 to the descending end, whereby the free roller The lower surface of 13a forms a guide surface.
In the dewatering state of the pallet centrifugal dewatering apparatus 1 shown in FIG. 2, the elevating frame 21 is located at the lowered position, the upper retracting means 13c raises the upper conveyance guide 13 to the ascending end, and the free roller 13a is It is retracted upward from the guide surface.

Next, FIG. 5 shows an enlarged side view of the vicinity of the lower holder 14 and the upper holder 15 and shows a state where the lower holder 14 and the upper holder 15 hold the pallet 2 in the dehydrated state shown in FIG.
The lower holder 14 includes a lower support member 31 that contacts the lower side surface 2 b of the pallet 2, two lower side wall members 32 provided adjacent to the lower support member 31, and an inner side of the lower side wall member 32. The insertion guide 33 is provided, and two lower engagement protrusions 34 provided on the lower support member 31 and projecting toward the pallet 2 side.
A rotating shaft 31a is fixed to the lower surface of the lower support member 31, the rotating shaft 31a is rotatably supported by the housing 11, and a pulley 16a constituting the rotating means 16 is provided at the lower end of the rotating shaft 31a. Is provided.
The pulley 16a is connected to a motor 16b constituting a rotating means 16 fixed to the housing 11 via a belt 16c, and the lower support member 31 rotates in the horizontal direction by driving the motor 16b. It is like that.
As shown in FIG. 5, the lower side wall member 32 is provided at an interval approximately equal to the thickness of the pallet 2 so that the pallet 2 can be inserted.
The insertion guide 33 is provided on the lower side wall member 32 and is formed so as to spread in a direction away from each other above the lower side wall member 32. In the conveying state of the pallet centrifugal dehydrator 1 shown in FIG. 1, the upper end portion of the insertion guide 33 protrudes above the conveying surface of the lower conveying means 11.
Then, when the dehydration of the pallet 2 is finished, the rotating means 16 stops the direction of the lower holder 14 to coincide with the conveying direction of the pallet 2 by the lower conveying means 12, and the insertion guide 33 is moved when the pallet 2 is conveyed. The direction which does not interfere with the pallet 2 to be conveyed is held.

The upper end portion of the lower engagement protrusion 34 is formed in a tapered shape, and the lower engagement protrusion 34 is provided at both longitudinal ends of the lower support member 31 as shown in FIG. Is provided at the center in the short direction.
Further, in the short direction of the side surface 2b of the pallet 2, the width of the lower engaging projection 34 is formed to be thinner than the width of the insertion hole 2c. Even if the dimension of the insertion hole 2c is changed, the lower engagement protrusion 34 can be inserted into the insertion hole 2c.
Further, depending on the pallet 2, the insertion hole 2c may be eccentric with respect to the side surface 2b of the pallet 2 in the thickness direction. The mating protrusion 34 can be inserted into the insertion hole 2c.
In the conveying state of the pallet centrifugal dewatering apparatus 1 shown in FIG. 1, the upper end of the lower engaging protrusion 34 is positioned below the conveying surface of the lower conveying means 12.

As shown in FIG. 6, each lower engagement projection 34 is attached to the lower support member 31 by tightening bolts 34a at two locations in the longitudinal direction, and the lower support members are loosened by loosening these bolts 34a. The position can be changed along the long hole 31 c formed in the hole 31. The bolts 34a and the long holes 31c constitute a gap adjusting means for the lower engaging projections 34.
By this distance adjusting means, the mounting position of the two lower engaging protrusions 34 in the longitudinal direction of the lower support member 31 can be changed, and the distance between the two lower engaging protrusions 34 is set to the width of the rib 2d of the pallet 2. It is possible to match.
When the pallet centrifugal dewatering device 1 is used, the interval of the lower engaging projections 34 is adjusted in advance by the interval adjusting means in accordance with the width of the rib 2d of the pallet 2.

The upper holder 15 is provided on the upper support member 41 that contacts the upper side surface 2 b of the pallet 2, two upper side wall members 42 formed adjacent to the upper support member 41, and the upper support member 41. And two upper engaging protrusions 43.
A rotating shaft 41 a is fixed on the upper surface of the upper support member 41 on the same axis as the rotating shaft 31 a of the lower holder 14, and the rotating shaft 41 a is rotatably supported by the elevating frame 21.
For this reason, when the lower holder 14 is rotated by the rotating means 16 in the dewatering state of the pallet centrifugal dewatering apparatus 1, the upper holder 15 is also rotated along with the rotation of the pallet 2.
As shown in FIG. 5, the upper side wall member 42 is provided at an interval approximately equal to the thickness of the pallet 2 so that the pallet 2 can be inserted, and is longer in the vertical direction than the lower side wall member 32 of the lower holder 14. Is formed.
Therefore, in the transport state of the pallet centrifugal dehydrator 1 shown in FIG. 1, the lower end portion of the upper side wall member 42 projects downward from the guide surface formed by the upper transport guide 13.
Further, the end of the upper side wall member 42 on the upstream side in the conveyance direction of the pallet 2 is formed so as to spread in a direction away from each other although not shown, and when the pallet 2 is conveyed, the pallet 2 has two upper side wall members. It guides so that it may be inserted between 42.

A lower end portion of the upper engagement protrusion 43 is formed in a tapered shape, and the lower end of the upper engagement protrusion 43 is lower than a guide surface of the upper conveyance guide 13 in the conveying state of the pallet centrifugal dewatering device 1 shown in FIG. It is located above.
Although not shown, the upper engaging protrusions 43 are also provided at both longitudinal ends of the upper support member 41, are provided at the center in the short direction of the lower support member 41, and are short in the short direction of the side surface 2b of the pallet 2. The lower engaging protrusion 34 is formed thinner than the insertion hole 2c.
Further, the distance between the upper engagement protrusions 43 can be adjusted by a distance adjusting means (not shown), and the attachment positions of the two upper engagement protrusions 43 in the longitudinal direction of the upper support member 41 can be changed. Yes.
As described above, the pallet 2 has the longitudinal direction of the upper and lower side surfaces 2 a and the short side by the lower engagement protrusion 34 and the lower side wall member 32 in the lower holder 14 and the upper engagement protrusion 43 and the upper side wall member 42 in the upper holder 15. Thus, the center of the upper and lower side surfaces 2b of the pallet 2 substantially coincides with the rotation axis formed by the upper and lower rotation shafts 31a and 41a.

Hereinafter, operation | movement of the pallet centrifugal dehydration apparatus 1 which has the said structure is demonstrated.
First, in a pallet cleaning apparatus (not shown), the pallet 2 is cleaned in an upright state with the article placement surface 2a vertical, and the side surface 2b of the pallet 2 is in a state of being directed in the vertical direction and the horizontal direction.
The pallet centrifugal dewatering device 1 is in the transport state shown in FIG. 1, and when the pallet 2 to which the cleaning liquid adheres is transported from the pallet cleaning device with the side surface 2b facing the horizontal direction facing the traveling direction, FIG. The conveyor 12a of the lower conveying means 12 located on the left side of the figure carries in from the carry-in port of the housing 11 while supporting the lower side surface 2b of the pallet 2.
When the pallet 2 passes through the carry-in port of the housing 11, the upper conveyance guide 13 comes into contact with the upper side surface 2 b of the pallet 2, and the pallet 2 is supported from above and below by the lower conveyance means 12 and the upper conveyance guide 13.
Thereafter, when the upstream conveyor 12a conveys the pallet 2 to the right in the figure, the tip of the pallet 2 passes through the position where the lower holder 14 and the upper holder 15 are provided, and is located downstream in the figure. To the conveyor 12a.
At this time, since the pallet 2 is supported from above and below by the upstream conveyor 12a and the upper conveyance guide 13, the pallet 2 moves between the downstream conveyor 12a and the upper conveyance guide 13 without being turned forward. It is like that.
Further, the lower engagement protrusion 34 in the lower holder 14 is positioned below the conveyance surface of the lower conveyance means 12, and the upper engagement protrusion 43 of the upper holder 15 is above the guide surface of the upper conveyance guide. Therefore, the pallet 2 does not interfere with the engaging protrusions 34 and 43.
Further, the insertion guide 33 in the lower holder 14 projects upward from the transport surface of the lower transport means 12, and the upper side wall member 42 in the upper holder 15 projects downward from the guide surface of the upper transport guide 13. Therefore, the pallet 2 passes between them.
When the ribs 2d formed on the upper and lower side surfaces 2b of the pallet 2 reach the center positions of the lower holder 14 and the upper holder 15, the lower conveying means 12 is moved by a signal from a sensor (not shown) provided in the housing 11 in advance. The pallet 2 stops at the position shown in FIG.

Subsequently, the pallet centrifugal dewatering apparatus 1 shifts from the conveying state shown in FIG. 1 to the dewatering state shown in FIG.
First, the two conveyors 12a in the lower conveying means 12 are swung so that the end on the lower holder 14 side is lowered by the lower retracting means 12c, and the pallet 2 supported by the conveyor 12a It is guided by the insertion guide 33 and inserted between the lower side wall members 32.
Thereafter, when the pallet 2 is further lowered, the lower engaging projections 34 provided on the lower holder 14 are inserted into the two insertion holes 2c formed on the lower side surface 2b of the pallet 2, and the lower side surface of the pallet 2 is inserted. 2b abuts on the lower support member 31, and the conveyor 12a continues to swing to the lower end, so that the lower conveying means 12 is completely detached from the lower surface of the pallet 2.
At this time, the interval between the lower engaging projections 34 is adjusted in advance by the interval adjusting means to the width of the rib 2d, so that the lower engaging projection 34 holds the rib 2d with almost no gap therebetween. 2c is inserted.
Here, even if the pallet 2 is lowered until it comes into contact with the lower support member 31, the pallet 2 is not detached from between the upper side wall members 42 in the upper holder 15, and the standing state is maintained. ing.

On the other hand, when the lower conveying means 12 is completely separated from the lower surface of the pallet 2 by the lower retracting means 12c, the elevating means 17 lowers the elevating frame 21, and the upper retracting means 13c raises the upper conveying guide 13.
The upper engaging protrusion 43 is inserted into the insertion hole 2c formed on the side surface 2b above the pallet 2 with the rib 2d interposed therebetween, and the lifting frame 21 is positioned at the lowered position, thereby supporting the upper support. The member 41 comes into contact with the upper side surface 2b of the pallet 2.

When the pallet centrifugal dewatering device 1 is in the dewatering state shown in FIG. 2, the pallet 2 is held from above and below by the lower holder 14 and the upper holder 15.
Specifically, the engaging projections 34 and 43 provided on the lower holder 14 and the upper holder 15 are inserted into the insertion holes 2c formed on the lower and upper side surfaces 2b of the pallet 2, and further, The mating protrusions 34 and 43 are inserted with a rib 2d formed at the center of the upper and lower side surfaces 2b of the pallet 2 interposed therebetween.
Further, the lower support member 31 of the lower holder 14 contacts the lower side surface 2b of the pallet 2, and the upper support member 41 of the upper holder 15 contacts the upper side surface 2b. The side wall members 32 and 42 of the lower holder 14 and the upper holder 15 are close to 2a.
As a result, the pallet 2 held by the lower holder 14 and the upper holder 15 is positioned on a rotation axis parallel to the article placement surface 2a of the pallet 2 formed by the upper and lower rotation shafts 31a and 41a. It becomes.

In this state, the rotating means 16 rotates the lower holder 14 in the horizontal direction, and accordingly, the pallet 2 supported by the lower holder 14 and the upper holder 15 supporting the pallet 2 are in the horizontal direction. The cleaning liquid or the like adhering to the pallet 2 is removed by centrifugal force.
At this time, as described above, the movement of the pallet 2 in the longitudinal direction of the side surface 2b is restricted by the lower engaging protrusion 34 and the upper engaging protrusion 43, and the side wall 2b is controlled by the lower side wall member 32 and the upper side wall member 42. Since movement in the short direction is restricted, the pallet 2 does not wobble during rotation.
After a predetermined time has elapsed, the rotating means 16 stops the rotation of the lower holder 14, and at this time, the lower holder 14 so that the longitudinal direction of the upper and lower side surfaces 2 b of the pallet 2 coincides with the conveying direction of the lower conveying means 12. Stop.
Subsequently, the pallet centrifugal dewatering apparatus 1 is changed from the dewatering state shown in FIG. 2 to the conveying state shown in FIG. 1 by the reverse procedure to that described above, and the pallet 2 is again supported from below by the lower conveying means 12 and the upper conveying. It is supported from above by the guide 13.
Then, the lower conveying means 12 moves the pallet 2 from the left side to the right side in FIG. 1 so that the pallet 2 is provided on the downstream side of the pallet centrifugal dehydrator 1 from the outlet of the housing 11. It is transported to the drying device.

According to the pallet centrifugal dewatering apparatus 1 having the above configuration, the lower engagement protrusion 34 of the lower holder 14 and the upper engagement protrusion 43 of the upper holder 15 are inserted into the insertion hole 2c formed on the side surface 2b of the pallet 2. By inserting it, the pallet 2 can be held.
Further, since the lower engaging protrusion 34 and the upper engaging protrusion 43 are inserted so as to sandwich the rib 2d formed at the center of the side surface 2b of the pallet 2, the pallet 2 is moved in the longitudinal direction by the rib 2d. It is designed to prevent this.
Thus, according to the present embodiment, only the central portion of the pallet 2 sandwiching the rib 2d located at the rotation center of the pallet 2 is held, so that the radial direction from the rotation center of the lower holder 14 and the upper holder 15 is set. Can be shortened, and centrifugal force due to rotation can be reduced.
For this reason, the motor 24 in the rotating means 16 can be made to have a low output, and the strength of the housing 11 can also be made lower than that of the conventional one. Can be manufactured.
Also, as described above, there are various types of external dimensions of the pallet 2, but since there are not so many types of arrangement dimensions of the insertion holes 2c, if the interval between the ribs 2d is the same, Even if the interval between the lower engagement protrusions 34 and the upper engagement protrusions 43 is not adjusted by the interval adjustment means, it is possible to process a plurality of types of pallets 2 without requiring mold change.
Specifically, for example, when the processing of the pallet 2 having the same arrangement size of the insertion hole 2d is performed although the length of the side surface 2b of the pallet 2 is different, the upper and lower lifting means 21 sets the lifting amount of the upper holder 15. You just need to change.
Furthermore, the pallet 2 having a different interval between the ribs 2d can be processed only by adjusting the interval between the lower engagement projection 34 and the upper engagement projection 43 by the interval adjustment means, and the lower holder 14 and the upper holder 15 themselves. Since there is no need to replace the mold, the mold can be easily changed.
Then, the width of the lower engagement protrusion 34 and the upper engagement protrusion 43 is made narrower than the insertion hole 2c in the short direction of the side surface 2b of the pallet 2, so that the size of the insertion hole 2c is reduced. Regardless, the lower engagement protrusion 34 and the upper engagement protrusion 43 can be inserted into the insertion hole 2c.
On the other hand, the movement of the pallet 2 in the lateral direction of the side surface 2 b is restricted by the lower side wall member 32 and the upper side wall member 42 provided on the lower holder 14 and the upper holder 15.

In contrast to the above embodiment, the lower holder 14 is provided with an elevating means so that the lower holder 14 is positioned at the lower end in the transport state of the pallet centrifugal dewatering apparatus 1, and the lower holder 14 is moved to the lower transport means in the dewatering state. The pallet 2 can be dehydrated without raising the lower conveying means 12 by the lower retracting means 12c.
Further, a space adjusting means may be provided on the lower side wall member 32 of the lower holder 14 and the side wall member 42 of the upper holder 15 so that the distance between the lower side wall member 32 and the upper side wall member 42 can be adjusted according to the thickness of the pallet 2. Good.
Furthermore, in the short direction of the side surface 2b of the pallet 2, the width of the lower engagement protrusion 34 and the upper engagement protrusion 43 is made equal to the width of the insertion hole 2c, so that the width of the pallet 2 is reduced. Can be restricted.
In the above-described embodiment, the lower engagement protrusion 34 and the upper engagement protrusion 43 are provided on the lower holder 14 and the upper holder 15, but one of these may be omitted.
For example, when the upper engaging protrusion 43 of the upper holder 15 is omitted, the pallet 2 can be dehydrated without raising and lowering the upper holder 15 by the elevating frame 21, and the elevating means 17 is not necessary.
Furthermore, in the said Example, although the lower holder 14 and the upper holder 15 which hold | maintain the upper and lower side surface 2b of the pallet 2 are provided so that it spins up in the standing state which made the article mounting surface 2a vertical, the article mounting surface is provided. It is good also as a structure which provided the holder so that 2b may be in a horizontal state and the side surface 2b on either side may be hold | maintained from the side.
In this case, the rotating shafts of the holder and the pallet are in the horizontal direction, and the pallet is rotated in the vertical direction and dehydrated.

DESCRIPTION OF SYMBOLS 1 Pallet centrifugal dehydration apparatus 2 Pallet 2b Side surface 2c Insertion hole 2d Rib 12 Lower conveyance means 12c Lower retraction means 13 Upper conveyance guide 14 Lower holder 15 Upper holder 16 Rotation means 31 Lower support member 34 Lower engagement protrusion 41 Upper support member 43 Upper engaging protrusion

Claims (5)

A pair of holders that hold opposite sides of the pallet on which the article placement surface is formed and support the pallet on a rotation axis parallel to the article placement surface, and rotate the holder so that the pallet is on the rotation axis. In the pallet centrifugal dewatering device provided with rotating means for rotating at
On the side surface of the pallet, a rib formed in the center and at least two insertion holes formed across the rib are formed,
Each of the holders includes a support member that abuts the side surface of the pallet, and the holder protrudes from the support member to the pallet side and is inserted into the insertion hole with the rib interposed therebetween. A pallet centrifugal dewatering device comprising a plurality of engaging protrusions.   2. The pallet centrifugal dewatering apparatus according to claim 1, further comprising an interval adjusting means for adjusting an interval between the engaging protrusions in accordance with a width of the rib in the pallet. Each support member in the pair of holders is provided with two side wall members adjacent to the support member,
The pallet centrifugal dewatering apparatus according to claim 1, wherein the article placement surface of the pallet is supported from both sides by the side wall member.   The pallet centrifugal dewatering device according to any one of claims 1 to 3, wherein a width of the engaging protrusion is substantially the same as a width of the insertion hole in a lateral direction of the side surface of the pallet. . The pair of holders includes a lower holder that holds a side surface positioned below the pallet with the article placement surface vertical, and an upper holder that holds a side surface positioned above the pallet.
A lower engagement protrusion is provided on the lower support member in the lower holder,
A lower conveying means that conveys the pallet while supporting the lower side surface of the pallet provided on the upstream and downstream sides in the conveying direction across the lower holder; and a lower retracting means that moves the lower conveying means up and down ,
In the pallet conveying state, the lower retracting means positions the conveying surface of the lower conveying means above the upper end of the lower engaging projection,
In the dewatering state of the pallet, the lower retracting means retracts the lower conveying means below the lower support member, the lower side surface of the pallet contacts the lower support member, and the lower engagement protrusion is inserted into the insertion hole. The pallet centrifugal dewatering device according to any one of claims 1 to 4, wherein the pallet centrifugal dewatering device is inserted into the pallet.

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