JPH06110260A - Pallet for transporting drum - Google Patents

Abstract

PURPOSE:To prevent the application of undue stresses on the inner side of a drum so that the damage on the inner side of the drum is prevented at the time of attaching and detaching the drum by disposing the drum supporters movably in a horizontal direction of a pallet body for transportation. CONSTITUTION:The drum supporters 1 and the pallet body 2 are separated from each other. Plural pieces of the drum supporters 1 are provided and the upper parts thereof are columnar objects 4 for supporting the drum. Further, supporting parts 3 for supporting the drum are formed. The drum supporters 1 are connected to the pallet body 2 movably in the horizontal direction and vertical direction by means of spring pins 6. Namely, the one-side ends of the spring pins 6 are fixed to the holes in the lower part of the drum supporters and the other-side ends penetrate movably the holes of the guide parts 7 of the pallet body. Then, the drum supporters are slidable in the horizontal direction of the pallet body and are also movable in the vertical direction. The drum supporters are thus capable of dealing with the fluctuation in the vertical direction as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet for transporting a drum in a drum coating process. More specifically, the present invention relates to a drum transport pallet for removing a drum during coating and mounting the drum again after the coating is finished to transport.

[0002]

2. Description of the Related Art A photoconductor drum used in an electrophotographic copying machine has a plurality of layers formed on the outer peripheral surface of a conductive pipe (hereinafter referred to as drum) such as an aluminum tube. Is formed by dipping each layer in a coating solution. When oil components, foreign substances, etc. adhere to the surface of the conductive pipe during coating, the immersion of the oil causes the coating liquid to be contaminated, and the coating liquid deteriorates to form a predetermined photosensitive layer. In addition, foreign matter and the like adhere to the conductive pipe together with the coating liquid to cause surface defects such as protrusion defects, and the photosensitive layer has a non-uniform thickness. Therefore, the conductive pipe needs to be cleaned before being applied.

By the way, in the cleaning process and the coating process, the drum is usually conveyed by a pallet. For example,
The cleaned drum is conveyed by a pallet when shifting to the coating step, and at the time of coating, it is lifted from the pallet, removed, and immersed in the coating liquid. That is, when a predetermined number of drums are accumulated at a predetermined position, center alignment between the drum and the drum attaching / detaching device is performed, the pallet and the drum are raised, and only the drum is lifted by the drum attaching / detaching device. The pallet descends and stops at a predetermined position, and the removed drum is dipped in the coating liquid to form a coating film on the drum. The applied drum raises the pallet and mounts it on the pallet. Then, the drum separated from the drum attaching / detaching device descends together with the pallet and is conveyed to the next coating step. As described above, various types of pallets for transporting the drums in the cleaning process and the coating process have been proposed in the past (for example, Japanese Utility Model Publication No.
No. 47628, Actual Kaihei 1-81227-81231,
(Japanese Utility Model Publication No. 26383/1993 and Japanese Utility Model Publication No. 2-14774, etc.). FIG. 2 is a cross-sectional view of an example of a conventional pallet, showing a state where a drum is placed. As shown in FIG. 2, the conventional pallet is formed by fixing the columnar body 4 and the pallet body 2 by welding or the like. In addition,
In the figure, reference numeral 3 is a plunge portion for supporting the drum 5, and 8 is a drum attaching / detaching device.

[0004]

By the way, in the conventional pallet, since the columnar body 1 and the pallet body 2 are fixed as described above, the pallet and the drum attaching / detaching device are attached when the drum is attached / detached. If a positional deviation occurs during the period, a frictional motion occurs between the columnar body 1 of the pallet and the inside of the drum, and scratches occur on the inner surface and the lower end of the drum, thereby generating chips. This swarf is contained in the coating liquid by immersing the drum in the coating liquid, and as a result, the swarf adheres to the surface of the coating film formed by dip coating, causing the surface defects. The problem arises that The present invention has been made for the purpose of solving the above-mentioned problems in the conventional technique. That is, an object of the present invention is to provide a drum transport pallet that does not damage the inside of the drum when the drum is attached or detached.

[0005]

SUMMARY OF THE INVENTION A drum transport pallet according to the present invention comprises a drum support having columnar members for supporting the drum and a drum support portion for supporting the drum, and a transport pallet body, and the drum support. The support is arranged so as to be movable in the horizontal direction with respect to the pallet body for transportation. In the transfer pallet of the present invention, the drum support is arranged so as to be movable in the horizontal direction with respect to the transfer pallet main body and at the same time movable in the vertical direction with a controlled amplitude. preferable.

[0006]

In the drum transport pallet of the present invention, the drum support is separated from the pallet body as described above, so that the drum support can be moved in the horizontal direction with respect to the transport pallet. Therefore, even if some displacement occurs between the pallet body and the drum attaching / detaching device when the drum is attached / detached, the positional displacement can be easily corrected by moving the drum support in the horizontal direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an embodiment of the drum transport pallet of the present invention. In the figure, 1 is a drum support and 2 is a pallet body, which are separated from each other. A plurality of drum supporting members 1 are provided, and a columnar member 4 for supporting the drum is provided at an upper portion thereof, and a supporting portion 3 for supporting the drum is further formed. In FIG. 1, the columnar member 4 has a tapered upper portion so that the drum can be easily inserted. A hole for inserting the spring pin 6 is provided in the lower portion of the drum support. Further, below the drum supporting portion, a ring-shaped cover portion 5 whose peripheral portion is inclined downward is attached. On the other hand, the guide portion 2 of the pallet body is provided with a hole having a diameter larger than the diameter of the spring pin 6. Then, the drum support 1 is attached to the pallet body 2 by the spring pin 6.
And are movably connected in the horizontal and vertical directions. That is, one end of the spring pin 6 is fixed to the lower hole of the drum support, and the other end movably penetrates the hole of the guide portion 7 of the pallet body. Therefore, the drum support is slidable in the horizontal direction with respect to the pallet body. Further, the drum support is also movable in the vertical direction, and it is possible to cope with fluctuations in the vertical direction. In that case, the movement width is restricted by the hole of the guide portion 7 and the ring-shaped cover portion 5, and the vertical movement is limited to the minimum. Reference numeral 8 denotes a drum attaching / detaching device for attaching / detaching the drum 9.

When a drum is attached and detached using this drum transport pallet, the drum is on the flange portion of the drum support even if there is some displacement between the pallet body and the drum attaching and detaching device. , It will slide by the amount of misalignment according to the drum attachment / detachment device, and no excessive force will be applied to the inside of the drum.

The drum transfer pallet of the present invention is useful not only in the coating process but also in the cleaning process. In the cleaning step, since the drum is placed on the pallet and conveyed, it is preferable to attach a ring-shaped cover portion 5 whose peripheral portion is inclined downward as shown in FIG. In that case, the ring-shaped cover portion satisfactorily drains water. In addition, the cover portion also acts to prevent the coating liquid from entering the joint between the drum support and the pallet body, and therefore the movement of the drum support in the horizontal direction is hindered by the coating liquid entering. It will not happen. In addition, even if a large amount of coating liquid flows into the pallet due to a trouble or the like, the drum carrier pallet of the present invention can separate the drum support and the pallet body by pulling out the spring pin, so that every corner can be easily There is also an advantage that the cleaning operation can be performed.

[0010]

Since the drum transport pallet according to the present invention has the above-mentioned structure, even if some displacement occurs between the pallet body and the drum attaching / detaching device, the displacement can be easily eliminated. . Therefore, no force is applied to the inside of the drum when the drum is attached or detached, and the inside of the drum is not damaged. Therefore, in the coating film formed on the drum surface, it is possible to prevent the occurrence of surface defects due to cutting chips.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a drum transport pallet according to the present invention.

FIG. 2 is a cross-sectional view of a conventional drum transport pallet.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Drum support tool, 2 ... Pallet body, 3 ... Drum support part, 4 ... Columnar object, 5 ... Cover part, 6 ... Spring pin,
7 ... Guide part, 8 ... Drum attaching / detaching device, 9 ... Drum.

Claims (2)

[Claims] 1. A drum support having a columnar member for supporting the drum and a drum support for supporting the drum, and a carrier pallet body, the drum support being in a horizontal direction with respect to the carrier pallet body. A pallet for transporting a drum, which is movably disposed in the pallet. 2. The pallet for drum transport according to claim 1, wherein a ring-shaped cover is attached to the drum support.