JPH0985157A - Separating, discharging and clamping device for cylindrical base material and separating, discharging and clamping method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely clamp and separate a photoreceptor drum without imparting damage and deformation thereto and to stably discharge and separate cylindrical base materials by using a separating, discharging and clamping device having attraction mechanisms consisting of clampers to attract and clamp the inside surfaces of the cylindrical base materials. SOLUTION: Three pieces of arm parts 621 project horizontally in part of an air cylinder 62. Hollow pipe members 65 slide movably back and forth in the hole parts within these arm parts 621. Attraction pads 66 which are formed to a semi-cylindrical shape and have small openings at the centers are fixed to the front ends of these pipe members 65. The pipe members 65 are rectilinearly movable in the radial direction of the arm parts 621 by driving means, not shown in Fig. The upper clampers 63 have the attraction mechanisms composed of the air cylinder 62, the arm parts 621, the pipe members 65 and the attraction pads 66. The lower clampers 64 have the similar attraction mechanism. The attraction pads 66 consist of soft elastic materials, such as engineering polymers and elastomers, and softly compress and part to and from the inside surface of the cylindrical base materials 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention continuously applies a photosensitive film coating liquid to a plurality of cylindrical substrates conveyed in a vertical direction, and after drying, the cylindrical substrates are sequentially separated. The present invention relates to a discharging device and method, and more particularly to a separating discharging gripping device and method after coating and drying on a cylindrical substrate of an electrophotographic photoreceptor.

[0002]

2. Description of the Related Art Various methods such as spray coating, dip coating, blade coating, roll coating, etc. are used in connection with thin and uniform coating on the outer surface of a cylindrical substrate having a continuous surface formed endlessly. Methods are being considered. In particular, a thin and uniform coating such as an electrophotographic photosensitive drum is being studied to develop a coating apparatus having excellent productivity. However, the conventional coating apparatus and coating method for a cylindrical substrate having a continuous surface formed endlessly have disadvantages such as a failure to obtain a uniform coating film and poor productivity.

In the spray coating method, the solvent evaporates before the coating droplet ejected from the spray gun reaches the outer peripheral surface of the endlessly formed cylindrical substrate having a continuous surface. When the solid concentration increased, and the viscosity of the applied droplets increased accordingly, and the droplets reached the surface, the droplets did not spread sufficiently on the surface, or dried and solidified. Since the particles adhere to the surface, a product having good smoothness on the coated surface cannot be obtained. Also,
The arrival rate of droplets on the cylindrical substrate having the continuous surface is 100
%, There is a loss of the coating liquid, and there is partial non-uniformity, so it is very difficult to control the film thickness. Furthermore, since a polymer solution or the like may cause stringing, there are restrictions on the solvent and resin used.

In the blade coating method and the roll coating method, for example, a blade or a roll is arranged in the longitudinal direction of a cylindrical substrate, the cylindrical substrate is rotated to perform coating, and the cylindrical substrate is rotated once. , Blades or rolls are retracted. However, when the blade or the roll is retracted, there is a disadvantage that a portion of the coating film thickness is thicker than other portions due to the viscosity of the coating solution, and a uniform coating film cannot be obtained.

[0005] The dip coating method improves the above-mentioned problems of poor surface smoothness of the coating solution and uniformity of the coating film.

However, the control of the coating film thickness is governed by the properties of the coating liquid, such as viscosity, surface tension, density, temperature, etc., and the coating speed, and the adjustment of the physical properties of the coating liquid is very important. In addition, the coating speed is low, and a certain amount or more of liquid is required to fill the coating liquid tank. Further, when layers are formed, there is a drawback that the lower layer components are dissolved and the coating solution tank is easily contaminated.

[0007] Therefore, as disclosed in Japanese Patent Application Laid-Open No. 58-189061, a circular amount-regulated type coating apparatus (including a slide hopper type coating apparatus) has been developed. This slide hopper type coating device continuously moves a cylindrical base material having a continuous peripheral surface formed endlessly in the longitudinal direction and surrounds the circumference thereof in an annular shape, with respect to the outer peripheral surface of the cylindrical base material. This coating device applies a coating liquid, and the coating device further comprises an annular coating liquid reservoir chamber, a supply port for supplying the coating liquid from outside to a part of the coating liquid reservoir chamber, and the coating liquid reservoir chamber. A coating liquid distribution slit opening inwardly of the coating liquid, and the coating liquid flowing out from this slit is made to flow down onto a coating liquid slide surface that is inclined obliquely downward, and a hopper coating surface at the lower end of the coating liquid slide surface and a cylindrical shape A bead is formed in a slight gap with the base material and is applied to the outer peripheral surface of the base material as the cylindrical base material moves. By using this slide hopper type coating apparatus, coating can be performed with a small amount of liquid, the coating liquid is not contaminated, and the coating with high productivity and easy control of the film thickness can be performed.

When a cylindrical base material (hereinafter also referred to as a base drum) of a photoconductor is continuously applied and dried, the base drums are stacked individually with their end faces abutted on each other. When coating and drying are performed, the stacked substrate drums are in a state of being connected by the dry coating film, and cannot be easily separated.

That is, although there is a means for separating the substrate drum immediately after coating, the use of such means stops the flow of the coating film when the coating liquid is quick-drying or quickly (hereinafter referred to as a set). Therefore, it is unsuitable when desiring to pass through drying. Further, when the undried base drum is separated, the liquid film is diverged or a stringing state occurs, which warps and contaminates the surroundings.

Further, a technique of coating and separating by a method of stacking substrate drums with a spacer interposed therebetween is disclosed in Japanese Patent Laid-Open No. Sho 61-61.
-120662, 61-120663, 61-
As disclosed in JP-A-120664, when vibration is generated by the separating means, the vibration is transmitted through the lower substrate drum that is performing continuous coating, and the deviation of the coating film during coating increases.

[0011]

As described above, since the coating liquid flows down on the substrate drum immediately after the coating of the photosensitizer coating liquid, the uniformly coated coating film is immediately put into the drying step to set the coating film. Is overwhelmingly good.

However, when the base drum is connected by the coating film, if a means for separating the base drum at a faster speed than the other base drum adjacent in the moving direction of the base drum is used, the base drum can be pulled up to the base drum below the adjacent base drum. There was a shortcoming.

Further, in the method in which the substrate drum to be separated is vibrated or the substrate drum is gripped by a chuck to change the axial direction, a deviation is given to the coating film thickness during coating below, or the substrate drum is vibrated by vibration. It is difficult to achieve stable production due to slipping or falling.

The method of setting the coating film early using a dryer immediately after coating is very advantageous for the coating film as described above. However, even if the substrate drum immediately after coating is positively dried by using a dryer or the like, there are cases in which sufficient drying cannot be obtained up to the position of the separation equipment due to the characteristics of the coating liquid and the required film thickness. If the finger touch level was not reached, it could not be held directly from the outside of the drum, making separation and recovery difficult.

The present invention solves such a problem, and even when the continuous coating method is used or the continuously coated substrate drums are stacked below, the substrate drum and its coated portion are vibrated and positioned. It is an object of the present invention to provide a stable separation / collection operation of the coated photoconductor drum without causing a deviation or the like, and also to provide a method for further improving the production effect. .

That is, the first object of the present invention is that the base drum can be securely gripped and separated without being scratched or deformed, and the impact when gripping the base drum is not transmitted to the lower base drum. Provided is a device and method for separating and discharging a cylindrical base material, in which a force for tearing and separating a coated and dried coating film between base drums is surely transmitted between the cylindrical base materials.

A second object of the present invention is that polymer powder, pigment powder, etc. are scattered and adhere to a cylindrical substrate when a coating film that has been applied and dried between adjacent substrate drums is torn and separated. Prevents the coating film from scattering and reattaching to the coating surface when the cylindrical substrate is separated, which is fatal when the coating film is attached to an undried coating film. (EN) A device and method for separating and discharging a cylindrical base material, which prevent the occurrence of image defects on an image carrier and prevent image defects such as black spots and white spots from occurring.

A third object of the present invention is to reliably grasp and separate the base drum without damaging or deforming the base drum, and to ensure the force for tearing and separating the coated or dried coating film between the adjacent base drums. A separating / discharging device for a cylindrical base material, which is transmitted between the cylindrical base materials and can hold and discharge the substrate drum vertically so that it can be stably placed on a pallet outside the apparatus without falling down, and It provides a method.

[0019]

SUMMARY OF THE INVENTION A first object of the present invention is to:
The coating liquid is continuously applied on the outer peripheral surface of the cylindrical base material stacked by aligning the cylinder axes of the cylindrical base material with a vertical coating device and dried, and then the coated cylindrical base material with a gripping device. In a separation and discharge device for a cylindrical base material that separates and discharges while gripping the inner surface of the cylinder, the separation and discharge gripping device has a suction mechanism including a gripper that suction-holds the inner surface of the cylindrical base material. And a method for separating and ejecting a sheet-shaped substrate (the invention of claims 1 and 2).

A second object is to arrange the cylindrical base materials on the outer peripheral surface of the cylindrical base materials, which are stacked with their cylinder axes aligned.
In a separation and gripping device for a cylindrical base material, the coating liquid is continuously applied and dried by a vertical coating device, and then separated and discharged while gripping the inner surface of the coated cylindrical base material by a gripping device. The present invention is achieved by a separation discharge gripping device and method characterized in that the device is provided with an intake mechanism (inventions of claims 3 and 4).

Further, a third object is to arrange the cylindrical base materials on the outer peripheral surface of the cylindrical base materials, which are stacked with their cylinder axes aligned.
A first gripper that grips the inner surface of the coated cylindrical base material after continuously applying and drying the coating liquid by a vertical coating device, and a cylindrical base material that is adjacent to the lower side of the cylindrical base material. In a separation and gripping device for a cylindrical base material that separates and discharges by a second gripper that grips the inner surface of the first gripper, the first gripper and the second gripper have different structures. This is achieved by an apparatus and method for separating and discharging a cylindrical substrate (the invention of claims 5 and 6).

[0022]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the overall structure of a continuous coating apparatus according to the present invention. In the figure, 10 is a supply means for supplying the cylindrical base material 1 to a predetermined position vertically below the coating means and pushing it up, and 20 is for gripping the outer peripheral surface of the supplied cylindrical base material 1 to align the cylinder axes. Transporting means for vertically pushing up and transporting from below the stack, 30 is positioning means for aligning the cylindrical base material 1 with the center of the annular coating part of the coating apparatus, and 40 is an outer peripheral surface of the cylindrical base material 1. A coating means for continuously coating the coating liquid on the upper portion, 50 is a drying means for drying the coating liquid coated on the cylindrical substrate 1, and 60 is a plurality of stacked cylindrical shapes which have been dried and conveyed vertically. It is a separating and discharging means that separates the base materials and takes them out one by one and discharges them.

The continuous coating apparatus of the present invention has a construction in which the above-mentioned means are continuously arranged on the vertical center line ZZ, and fully automated production requiring no manpower is achieved with high accuracy. That is, the supply means 10 is provided with a plurality of mounting means 11 for mounting the cylindrical substrate 1 on the movable table 1.
2. By rotating the movable table 12, the transfer means 20
Drive means 13 for feeding to a vertical line connected to the, and elevating means 1 for pushing up the cylindrical base materials 1 already grasped and conveyed by the conveying means 20 upward so as to be stacked.
4, a hand means 15 for supplying a cylindrical substrate provided on the upper end of the elevating means 14, and a control means (not shown) for controlling the timing of rotation by the driving means 13 and the pushing up by the elevating means 14. . The supply of the cylindrical substrate 1 onto the movable table 12 is performed by a robot handle.

The conveying means 20 provided above the supply means 10 has two sets of gripping means 21 and 22 which can be pressed into contact with and separated from the outer peripheral surface of the cylindrical base material 1 and can be vertically moved vertically.
And has a function of positioning, gripping and transporting the cylindrical substrate 1 upward. Hereinafter, each of the above means 20, 30, 4
Details of 0, 50 and 60 will be described later.

FIG. 2 is a perspective view showing a successive and continuous coating device according to another embodiment of the present invention. In this embodiment, a unit A including a positioning means 30A, a coating means 40A, and a drying means 50A, a positioning means 30B, and a coating means 4 above the transport means 20 on the vertical center line ZZ.
0B, a unit B including a drying unit 50B, a positioning unit 30C, a coating unit 40C, and a unit C including a drying unit 50C are arranged in a vertical column.
The separating and discharging means 60 is arranged at the uppermost stage. The coating liquid discharged from each of the coating means 40A, 40B, 40C forms a multilayer coating layer on the cylindrical substrate 1 in sequence, is dried by each of the coating means 50A, 50B, 50C, and is then separated and discharged. The uppermost cylindrical substrate 1A is gripped by the means 60 and separated from the lower cylindrical substrate 1B, and is placed on a pallet outside the machine.

FIG. 3 shows the positioning means 30 and the coating means 40.
FIG. 4 is a perspective view of the application means 40.

As shown in FIG. 3, a plurality of cylindrical substrates 1A and 1B are vertically stacked along the center line ZZ.
(Hereinafter, referred to as a cylindrical substrate 1) is continuously moved upward in the direction of the arrow to surround the periphery thereof and directly relates to the outer peripheral surface of the cylindrical substrate 1 by the slide hopper type coating device 40. The coating liquid (photosensitive liquid) L is applied by the (hopper application surface) 41. The cylindrical substrate 1 may be a hollow drum, for example, an aluminum drum, a plastic drum, or a seamless belt type substrate. On the hopper coating surface 41, a narrow coating liquid distribution slit (abbreviated as slit) 43 having a coating liquid outlet 42 opening to the side of the cylindrical substrate 1 is horizontally formed. This slit 43 is provided with an annular coating liquid distribution chamber (coating liquid reservoir) 44.
The coating liquid L in the storage tank 2 is supplied to the annular coating liquid distribution chamber 44 by the pressure pump 3 via the supply pipe 4. On the other hand, below the coating liquid outlet 42 of the slit 43, a coating liquid slide continuously inclined downward and terminating at a size slightly larger than the outer diameter of the cylindrical base material 1. A surface (hereinafter referred to as a slide surface) 45 is formed. Furthermore, this slide surface 4
A lip portion 46 extending downward from the 5th end is formed.
In the coating by the coating means (slide hopper type coating device) 40, when the coating liquid L is pushed out from the slit 43 and made to flow down along the slide surface 45 in the process of pulling up the cylindrical substrate 1, the end of the slide surface 45 is obtained. The coating liquid that has reached the state forms a bead between the end of the slide surface 45 and the outer peripheral surface of the cylindrical base material 1, and then the cylindrical base material 1
Applied to the surface of Since the end of the slide surface 45 and the cylindrical base material 1 are arranged with a certain gap, they are already applied without damaging the cylindrical base material 1 and when forming multiple layers having different properties. It can be applied without damaging the layers.

On the other hand, at a position farthest from the coating liquid supply portion of the pressure feed pump 3, a part of the coating liquid distribution chamber 44 is
Air bleeding means 47 for removing bubbles in the coating liquid distribution chamber 44 is provided. When the coating liquid L in the storage tank 2 is supplied to the coating liquid distribution chamber 44 and is supplied from the coating liquid distribution slit 43 to the coating liquid outlet 42, the opening / closing valve 47 is opened and the coating liquid distribution chamber 44 is opened by the air venting means 47. Exhaust the air inside.

Positioning means 30 for positioning the cylindrical substrate in the circumferential direction is fixed to the lower portion of the coating means 40. Main body 3 of the positioning device 30 for the cylindrical substrate 1
1, a plurality of air supply ports 32 and a plurality of exhaust ports 33 are formed. The plurality of air supply ports 32 are connected to an air supply pump (not shown), and a fluid such as air is pressure-fed. A discharge port 34 passes through one end of the air supply port 32 at a side facing the outer peripheral surface of the cylindrical substrate 1. The discharge port 34 faces the outer peripheral surface of the cylindrical substrate 1 with a predetermined gap. The gap is between 30 μm and 2 mm. The outlet 3
Reference numeral 4 denotes a small-diameter nozzle having a diameter of 0.05 to 0.5 mm.

The inner peripheral surface of the lower part of the inner wall of the main body 31 is a tapered surface 35 that widens on the inlet side. The tapered surface 35 is, for example, a conical surface having an axial length of 50 mm and a one-sided inclination angle of 0.5 mm.

The fluid pumped from the air supply pump is introduced into the main body 31 through the plurality of air supply ports 32 and discharged through the plurality of discharge ports 34, and the cylindrical substrate 1A (1
A uniform fluid film layer is formed on the outer peripheral surface of B). The discharged fluid is discharged out of the apparatus from the plurality of exhaust ports 33.

The opening diameter of the discharge port 34 is, for example, 0.
It is formed in a circular shape of 2 to 0.5 mm. The opening diameter of the exhaust port 33 is formed in a circular shape of, for example, 3 to 5 mm.

The fluid supplied to the air supply port 32 is preferably air or an inert gas such as nitrogen gas. The fluid is preferably clean gas of JIS class 100 or less.

As the vertical coating device connected to the positioning device of the present invention, various devices such as a slide hopper type, an extrusion type and a ring coater are used.

Above the coating means 40, a drying means 50 comprising a drying hood 51 and a dryer 53 is provided.

FIG. 5 shows the coating means 40 and the coating means 40.
It is sectional drawing of the drying hood 51 provided in the upper part of FIG. The drying hood 51 has an annular wall surface, and a large number of openings 51A are formed in the wall surface. The cylindrical substrate 1 is raised in the direction of the arrow, and the hopper coating surface (coating head) 41 of the coating means 40 coats the coating liquid L to form the photosensitive layer 5. The photosensitive layer 5 formed on the cylindrical substrate 1 is gradually dried while passing through the drying hood 51. This drying is performed by discharging the solvent contained in the coating liquid L from the multiple openings 51A to the outside of the wall surface. As described above, the photosensitive layer 5 formed by applying the coating liquid L on the cylindrical substrate 1 by the applying means 40 is surrounded by the drying hood 51 immediately after the application, and the opening 51 is formed.
Since the solvent is released only from A, the drying rate of the photosensitive layer 5 immediately after coating is almost proportional to the opening area of the opening 51A.

FIG. 6 shows a sectional view of the dryer 53 of the present invention. The drying device 53 includes a suction slit member 5 having a suction slit 531, a suction chamber 532, and a suction nozzle 533.
A cylindrical member 535 is concentrically connected to the lower part of the tube 34, and a cylindrical member 536 is concentrically connected to the upper part of the tube 34.

A plurality of suction nozzles 533 are provided.
Suction from the suction chamber 53 in the circumferential direction.
2. The suction air uniformized in the circumferential direction by the suction slit 531 which is uniform in the circumferential direction flows, and the suction slit member 534, the inner diameter surfaces of the upper and lower cylindrical members 536, 535 and the coated cylindrical base are further separated. The turbulence of the airflow between the outer peripheral surface of the material 1 and the outer surface of the material 1 is very slightly suppressed by the buffer space 537,
An air flow of uniform suction air for drying shown at 538 is created.

The coated film is dried by transporting the coated cylindrical substrate 1 in the drying zone in the direction shown by the arrow.

Next, the steps of the continuous coating device will be described.

The cylindrical base material 1 is placed at a position of the base drum 1A on the movable table 12 from the cylindrical base material storage chamber by a supply robot (not shown). The drum 1A reaches the position 1B by the rotation of the movable table 12 in the direction of the arrow. At this time, the lifting / lowering means (supply arm) 14 pushes the cylindrical substrate 1B upward from below, and the cylindrical substrate 1B is supplied to the position of the hand means 15. Preferably, when the pushing up by the supply arm 14 is completed, the cushioning mechanism acts and the cylindrical substrate 1
It is good to eliminate the shock when joining with B. In this way, the cylindrical base material 1B is carried to the gripping and conveying device 1C.

Reference numeral 20 indicates a conveying means. The connecting portion between the cylindrical substrates 1C and 1D is grasped by the grasping means (conveyance hands) 21 and 22 and conveyed upward, and reaches the positioning means 30.

Reference numeral 30 is a positioning means, which is disclosed in Japanese Patent Laid-Open No. 3-2.
In addition to the positioning means described in Japanese Patent No. 80063,
Japanese Patent Application No. 7-125230 and Japanese Patent Application No. 7-1252
A ring-shaped positioner as described in No. 31 is preferably used.

The cylindrical substrate accurately positioned in this way is transferred to the vertical coating means 40 and coated. Four
Reference numeral 0 denotes a coating means, which may be of any type as long as it is coated by sliding drums such as a slide hopper type, an extrusion type, a ring coater type, and a spray coater type and moving them relatively upward or downward. A slide hopper type coater is preferable because a continuous stable coating having high property can be obtained. For example, JP-A-58-189.
This is described in detail in Japanese Patent Publication No. 061.

In this way, the coating composition was used as the cylindrical substrate 1.
Applied on top. The coated cylindrical substrate 1 is a drying means 5
Migrated to 0. As the drying means 50, as shown in FIG. 1, a drying hood 51 and a suction-type dryer 53 may be stacked and used, only the hood may be used depending on the solvent of the coating liquid or the liquid film thickness, or only the suction-type dryer may be used. . These are Japanese Patent Application No. 5-21649.
No. 5 or Japanese Patent Application No. 5-99559. In the case of a certain coating liquid, the drying means may be left to natural drying without special provision.

After that, the process is transferred to the separation and discharge means 60.
Those described in detail in JP-A-7-43917 are preferable. Another example is disclosed in JP-A-61-120662.
And JP-A-61-120664.

Cylindrical base materials (base drums) 1A, 1B, 1C, ...
The step of separating is described with reference to the state diagram of each process of the separation process of FIG. 7 and the perspective view and cross-sectional view of FIG. 8.

The separating / discharging means 60 comprises a vertically moving robot stage 61, an air cylinder 62, an upper chuck (upper gripper) 63 and a lower chuck (lower gripper) 64.

The coated cylindrical base materials 1 are piled up from the lower side to the upper side, move upward, and reach the separating position as shown in FIG. 7 (a). At this time, the vertical robot is activated to move the entire separating device that is coaxial with the to-be-separated cylindrical substrate 1 and is installed at the same speed. First, the cylindrical substrate 1 in which the lower gripper 64 is adjacent to the separated cylindrical substrate 1A at the position shown in FIG. 7B.
Hold B. Next, the upper gripper 63 holds the separated cylindrical substrate 1A at the position shown in FIG. 7 (c). By the air cylinder 62, the upper gripper 63 moves upward while holding the separated cylindrical base material 1A, and reaches the position shown in FIG. 7D. At this time, the coating film straddling the cylindrical substrate 1B adjacent to the separated cylindrical substrate 1A is torn and the cylindrical substrates 1A and 1B are separated as shown in FIG. 7D. In order to discharge the separated cylindrical substrate 1A, the lower gripper 64 is released as shown in FIG.
As shown in (f), the upper gripper 63 has the cylindrical substrate 1 to be separated.
The vertical moving robot stage 61 rapidly rises while holding A, and the separated cylindrical base material 1A is placed on the separating device arranged far above the position of the adjacent cylindrical base material 1B, and the upper gripper 63 Is released and the process ends. Then, for the next separation of the cylindrical substrate 1B, the vertically moving robot stage 61 descends and the air cylinder 62 descends to return to the initial position shown in FIG. 7 (a).

In addition, the cylindrical substrate 1 to be separated is separated when the cylindrical substrate 1A adjacent to the cylindrical substrate 1A to be separated is separated.
A method of pulling up the cylindrical substrate 1A while applying rotation to A is also effective. This applies a shearing force, not a tensile force, to the separated film, and can reduce the phenomenon of thinning of the coating film profile in the vicinity of the separated portion in a wet film. Further, the scattering of small pieces of the film, which occurs when the coated film is cut, is reduced by being drawn into the inner surface of the cylindrical substrate 1.

Regarding the vibration generated at the time of separation,
Although there are differences depending on the thickness of the coating film, film quality, degree of drying, etc.,
Vibration can be reduced by mechanically increasing rigidity,
It is preferable to perform the separating operation during the time during which the cylindrical base material 1 during coating passes through the non-image portion at the end of the cylindrical base material.

In the case of the vertical coating apparatus according to the present invention, when a shock is generated when separating the uppermost cylindrical base material, this shock is transmitted to the cylindrical base material immediately below the separating portion, and further lower cylindrical shape. Affects all substrates and all cylindrical substrates being coated are rejected. In particular, in the case of a thin-walled cylindrical substrate, the contact area between adjacent cylindrical substrates is small,
The cylindrical base material coating failure is apt to occur due to the impact and vibration. Therefore, the upper gripper 63 is provided on the inner surface of the cylindrical base material 1.
It is necessary to press the lower gripper 64 softly.

FIG. 8 (A) is a perspective view showing one embodiment of the separation and discharge gripping device according to claims 1 and 2 of the present invention, and FIG. 8 (B).
FIG. 4 is a sectional view of the separation and discharge gripping device. Three arms 621 horizontally protrude from a part of the air cylinder 62. A hollow pipe member 65 slides reciprocally in a hole inside the arm 621. A suction pad 66 having a semi-cylindrical shape and a small opening at the center is fixed to the tip of the pipe member 65. The pipe member 6
5 can be moved straight in the radial direction of the arm portion 621 by a driving means (not shown). The upper gripper 63 of the separation discharge gripping device of the present invention includes the air cylinder 62 and the arm 6 described above.
The suction mechanism includes a suction pipe 21, a pipe member 65, and a suction pad 66. The lower gripper 64 also has a similar suction mechanism.

The suction pad 66 is made of a flexible elastic material and is softly pressed against and separated from the inner surface of the cylindrical substrate 1. The material of the suction pad 66 is a polymer,
Especially engineering polymers and elastomers,
An elastomer is particularly suitable. For example, nylon, polyacetal, polysulfone, polyphenylene oxide, polyurethane, chloroprene rubber, natural rubber or the like can be used.

When the cylindrical substrates 1 arranged in tandem are separated and gripped, as shown in FIG. 7, the upper gripper 6 is used.
3 and the lower gripper 64 are inserted into the cylindrical base material 1 and stopped at a predetermined position, the three suction units composed of the pipe member 65 and the suction pad 66 are centrally moved by a driving means (not shown). It is moved in a direction away from the line ZZ, and is lightly pressed against the inner peripheral surface of the cylindrical substrate 1. Next, the air suction means penetrating the air cylinder 62 is driven to suck the air in the suction pad 66 to suck and grip the inner peripheral surface of the cylindrical substrate 1. Hereinafter, the cylindrical substrate 1 is separated and discharged by the process shown in FIG.

FIG. 9A is a perspective view showing another embodiment of the separation and discharge gripping device, and FIG. 9B is a sectional view of the separation and discharge gripping device.

A plurality of bag-shaped air bag members 67A made of a flexible elastic thin film and an intake slit member 68A are provided at a portion of the air cylinder 62 corresponding to the upper gripper 63. Similarly, a bag-shaped air bag member 67B made of a flexible elastic thin film and an air intake slit member 6 are also provided at a portion corresponding to the lower gripper 64.
8B is provided. The air bag member 67A and the air bag member 67B are expanded by compressed air sent from a pneumatic pump (not shown), and are lightly pressed against the inner peripheral surface of the cylindrical substrate 1. Airbag member 67A on the upper side of the drawing
Indicates this expansion pressure contact state. When the compressed air is exhausted, the air bag member 67B contracts and separates from the inner peripheral surface of the cylindrical substrate 1. Air bag member 67 in the lower part of the drawing
B shows this contracted / separated state.

A plurality of intake slit members 68A are provided between the plurality of air bag members 67A and penetrate the air cylinder 62 to connect to a suction pump (not shown). Similarly, a plurality of air intake slit members 68B are provided between the plurality of air bag members 67B.
Is provided and penetrates the inside of the air cylinder 62 and is connected to the suction pump. The suction pump operates when the air bag member 67A expands and comes into pressure contact with the inner peripheral surface of the cylindrical base material 1, and sucks and holds the inner peripheral surface of the cylindrical base material 1.

10 (a), 10 (b) and 10 (c) are perspective views showing an embodiment of the separating and discharging holding device according to claims 3 and 4 of the present invention.

FIG. 10 (a) shows the embodiment shown in FIG. 8 described above, but the upper and lower cylindrical substrates 1A and 1B of the gripping device.
A plurality of intake ports 70 are formed in the air cylinder 62 in the vicinity of the separated portions where the end faces of the air grippers are in contact with each other, that is, in the middle between the upper gripper 63 and the lower gripper 64. The intake port 70 is connected to a suction pump (not shown) and sucks foreign matter scattered near the separation portion together with air. When the cylindrical base material 1 is separated, the coating film fragments generated in the separated portion scatter and re-attach to the coating surface of the cylindrical base material 1. When this cylindrical base material 1 is used, an image defect occurs. . In order to avoid this, the air cylinder 62 is provided with the intake port 70 for sucking the coating film pieces scattered at the time of separation.

FIG. 10 (b) is a perspective view of the embodiment shown in FIG. 9, but the air bag 67A which is the upper gripper.
1 between the lower gripper and the air bag 67B, which is a lower gripper.
A plurality of intake ports 70 similar to 0 (a) are provided,
The pieces of the coating film scattered during the separation are sucked.

FIG. 10 (c) is a perspective view showing still another embodiment of the separating and discharging means 60. The upper gripper 69A and the lower gripper 69B have substantially the same structure, and are controlled by the air pressure of the air cylinder 62. When it swings and stands up and deploys in an umbrella shape, it comes into pressure contact with the inner peripheral surface of the cylindrical substrate 1. Upper grip 6
When 9A and the lower gripper 69B contract, they are separated from the inner peripheral surface of the cylindrical substrate 1. The air cylinder 62 is also provided with the above-mentioned plurality of intake ports 70, and sucks the coating film pieces scattered at the time of separation.

FIG. 11A is a perspective view showing an embodiment of the separation and discharge gripping device according to claims 5 and 6 of the present invention.
11B is a sectional view thereof, and FIG. 11C is a perspective view showing another embodiment of the lower gripper 64.

In this embodiment, as shown in the figure, the air bag member 67 shown in FIGS. 9 and 10B is used as the upper gripper.
8A and 8B is used as a lower gripper by using a horizontal cylindrical base material inner peripheral surface contact type upper gripper composed of A and an intake slit member 68A.
Also, the vertical direction cylindrical substrate inner peripheral surface contact type lower gripper 64 shown in FIG. 10A was used.

The upper horizontal cylindrical substrate inner peripheral surface contact type grasper is a grasper that contacts all the horizontal circumferential surfaces inscribed in one cut surface of the inner peripheral surface of the cylindrical substrate 1. . The lower vertical cylindrical substrate inner peripheral surface contact type gripper is a gripper that does not contact in the entire circumferential direction but only in part. The upper gripper (first gripper) 67A prevents the cylindrical base material 1A from wobbling in the horizontal direction when the grip is released. The lower gripper (second gripper) 64 does not apply vibration when gripping the cylindrical base material 1B.

The horizontal cylindrical inner peripheral surface contact type upper gripper securely holds the lower cylindrical base material 1B at three points, so that the cylindrical base material 1B is pulled upward at the time of separation. As a result, it is possible to prevent vibration and displacement. Further, the horizontal direction cylindrical base material inner peripheral surface contact type upper gripper,
Since the holding force in the circumferential horizontal direction of the upper cylindrical base material 1A is large, it is effective in applying a shearing force and pulling the cylindrical base material 1B while applying rotation during separation. As the lower gripper 64, a plate-shaped gripper made of natural rubber having brass pins 641 that can be pushed in as shown in FIG. 11C was used.

The present invention will be described below with reference to Examples.
It is not limited to this.

Claims 1 and 2 of the present invention are described in the following Example 1.
Explanation will be made along 2.

Example 1 The substrate drum was coated, dried and separated by the continuous coating device shown in FIG.

The conductive support (cylindrical base material) has a mirror-finished diameter of 80 mm, a height of 355 mm, and an inner thickness of 1.
A 0 mm aluminum drum support was used. As the coating liquid, the UCL-1 coating liquid composition described below is used,
The coating was applied so that the dry film thickness was 2.0 μm.

UCL-1 coating liquid composition (4.0 W / V% polymer concentration) Copolymerized nylon resin (CM-8000 Toray Co., Ltd.) 30 g Methanol / n-butanol = 10/1 (Vol. Ratio) 10 l In Example 1, the upper gripper 63 and the lower gripper 6 having the separation and discharge gripping device and the natural rubber suction pad 66 shown in FIG.
4, the continuous coating, drying, and separation were performed as described above, and the separated and grasped state was observed.

When the suction pad 66 of the present invention is used, separation and grip discharge is good even for the thin-walled base drum 1, the influence of vibration, shock, etc. is not transmitted to the lower drum base 1B, and the base drum 1A is not transmitted. It can be grasped and discharged vertically without tilting. Therefore, there are no coating defects such as coating unevenness, film thickness unevenness, scratches, dust, and drum damage, and the substrate drum 1
A did not fall and was not damaged, and a coating drum having good coating properties was obtained. In addition, since it is possible to apply a large number of stable continuous coatings and complete automation for a long time, a product of high quality and high reliability without dust and dirt is possible.

Example 2 In place of Example 1, a suction pad 67 as shown in FIG.
Application, drying, and separation were performed by the sequential and continuous application device of FIG. 2 using the separation and discharge holding device having A and 67B. That is, on a mirror-finished aluminum drum support having a diameter of 80 mm, a height of 355 mm, and a wall thickness of 0.95 mm, the coating liquid compositions UCL-1CGL-1 and CTL-1 were prepared as follows, and a slide hopper was used. Mold coating device 40
A (for UCL-1), 40B (for CGL-1), 4
0C (for CTL-1), 0.5 dry film each
Three layers were successively coated so as to have a thickness of 1.5 μm, 1.5 μm, and 25 μm, dried, and separated to prepare a photosensitive drum, and the separated state was observed.

UCL-1 coating liquid composition Copolymerized nylon resin (CM-8000 Toray Co.) 30 g Methanol / n-butanol = 10/1 (Vol ratio) 10 l CGL-1 coating liquid composition Fluorenone type disazo pigment (CGM) -1) 250 g Butyral resin (S-REC BX-L Sekisui Chemical Co., Ltd.) 100 g Methyl ethyl ketone 14.3 l The above coating liquid composition (solid content weight ratio CG for solid content)
M-1: BX-L = 1: 1) was dispersed for 20 hours using a sand mill.

CTL-1 coating liquid composition CTM-1 5.0 kg Polycarbonate (Z-200 manufactured by Mitsubishi Gas Chemical Co., Inc.) 5.6 kg 1,2-dichloroethane 28 l Solid content weight ratio CTM-1: Z- for solid content. 200
= Fixed at 0.89: 1,

[0076]

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[0077]

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By using the separating and discharging gripping device of the present invention, the separating and gripping is good even for a thin substrate drum,
The influence of vibrations and shocks is not transmitted to the lower base drum 1B, and the base drum can be gripped and discharged in a vertical state without being dented. Therefore, there were no coating defects such as coating unevenness, film thickness unevenness, scratches, dust, and drum damage, and the substrate drum was not fallen and scratched, and a coating drum having good coatability was obtained. In addition, since it is possible to apply a large number of stable continuous coatings and complete automation for a long time, a product of high quality and high reliability without dust and dirt is possible.

The obtained photoconductor drum is UB manufactured by Konica Corporation.
When the image was actually taken with a IX3035 copying machine, it was good without image defects (black spots, white spots, streaks) due to gripping impact, and unevenness in density and fog caused by uneven film thickness.

Next, claims 3 and 4 of the present invention will be described with reference to Examples 3 and 4 below.

Example 3 Coating, drying and separation were carried out by the continuous coating device shown in FIG.

The conductive support (cylindrical base material) has a mirror-finished diameter of 80 mm, a height of 355 mm, and 283 g.
Aluminum drum support was used. The CGL-2 coating liquid composition described below was used as the coating liquid, and coating was performed so that the dry film thickness was 2.0 μm.

CGL-2 coating liquid composition Perylene pigment (CGM-2) 500 g Butyral resin (S-REC BX-L Sekisui Chemical Co., Ltd.) 500 g Methyl ethyl ketone 24 l Coating liquid composition (solid content weight ratio CG for solid content)
M-2: BX-L = 1: 1 fixed) was dispersed for 20 hours using a sand mill.

[0084]

Embedded image

In the third embodiment, the separating and grasping device having the suction mechanism shown in FIG. 10A was used to perform continuous coating, drying and separation as described above, and the grasping state at the time of separation was observed.

Table 1 shows the results of the gripping state.

[0087]

[Table 1]

When the separation gripping device having the air intake mechanism of the present invention is used, the coating film pieces are not redeposited on the drum substrate, the separation and discharge are good, and the coating film defects such as uneven film thickness, scratches, dust and drum damage are caused. Thus, a coating drum having good coating properties was obtained.
In addition, since it is possible to apply a large number of stable continuous coatings and complete automation for a long time, a product of high quality and high reliability without dust and dirt is possible.

Example 4 The separation and grasping device of FIG. 10B was used instead of the separation and grasping device of Example 3, and coating and separation were carried out by the sequential continuous coating device of FIG. That is, mirror-finished diameter 80mm, height 3
On a 55mm, 283g aluminum drum support,
Coating liquid composition UCL-1CGL-2
And CTL-1 are adjusted, and a slide hopper type coating device 40A (for UCL-1), 40B (CGL-2)
3) so that the dry film thickness becomes 1.0 μm, 2.2 μm and 23 μm, respectively.
The layers were sequentially applied in multiple layers, dried, and separated to prepare a photoreceptor, and the separated state was observed. Table 2 shows the results.

UCL-1 coating liquid composition Copolymer nylon resin (CM-8000 manufactured by Toray) 30 g Methanol / n-butanol = 10/1 (Vol ratio) 10 l CGL-2 coating liquid composition Perylene pigment (CGM-2) ) 500 g Butyral resin (S-REC BX-L manufactured by Sekisui Chemical Co., Ltd.) 500 g Methyl ethyl ketone 24 l The above coating liquid composition (solid content weight ratio CG for solid content)
(M-2: BX-L = 1: 1) was dispersed for 20 hours using Sansamil.

CTL-1 coating liquid composition CTM-1 5 kg Polycarbonate (Z-200 manufactured by Mitsubishi Gas Chemical Co., Inc.) 5.6 kg 1,2-dichloroethane 28 l Solid content weight ratio CTM-1: Z-200 for solid content.
= Fixed at 0.89: 1,

[0092]

[Table 2]

When the separating and gripping device having the air intake mechanism of the present invention was used, separation and discharge were excellent, there was no danger of redeposition of dust on the substrate drum, and a coating drum with good coatability was obtained. In addition, since it is possible to apply a large number of stable continuous coatings and complete automation for a long time, a product of high quality and high reliability without dust and dirt is possible.

The obtained photoreceptor No. When 2-1 was actually copied by a U-BIX3035 copying machine manufactured by Konica Corporation, it was good without image defects (reattachment of coating film pieces, black spots, white spots, dust, streaks, etc.).

Next, claims 5 and 6 of the present invention will be described with reference to Examples 5 and 6 below.

Example 5 Coating, drying and separation were performed by the continuous coating device shown in FIG.

The conductive support (cylindrical base material) has a mirror-finished diameter of 80 mm, a height of 355 mm, and 283 g.
Aluminum drum support was used. The CGL-2 coating liquid composition described below was used as the coating liquid, and coating was performed so that the dry film thickness was 2.0 μm.

CGL-2 coating liquid composition Perylene pigment (CGM-2) 500 g Butyral resin (S-REC BX-L Sekisui Chemical Co., Ltd.) 500 g Methyl ethyl ketone 24 l The above coating liquid composition (solid content weight ratio CG for solid content)
M-2: BX-L = 2: 1) dispersed using a sand mill for 20 hours.

In the fifth embodiment, as shown in FIG. 11, a separate discharge gripping device comprising a horizontal base material inner surface contact type upper gripper 67A and a vertical base material inner surface contact type lower gripper 64 is used, and continuous coating is performed as described above. The sample was dried, dried, and separated, and the gripped state at the time of separation was observed. In this case, in the figure, the upper gripper 67A is like an O-ring made of natural rubber, and the lower gripper 64 is a plate-shaped gripper. The upper and lower grippers 67A and 64 grip the drum base body from the inner direction at the same time in three directions, for example, by a three-way chuck. The results are shown in Table 3.

[0100]

[Table 3]

When the upper and lower separating gripping devices are used as in the present invention, the separating and discharging is good, the influence of vibrations and shocks is not transmitted to the lower base drum 1B, and the base drum 1A is kept in the vertical state without tilting. Can be discharged while holding. That is, it is preferable that the upper gripper 67A does not tilt the drum base,
The lower gripper 64 is used for gripping and releasing the lower base drum 1B.
It is preferable to use a gripper of the present invention that does not transmit vibrations to the coating material.Therefore, there are no coating defects such as coating unevenness, film thickness unevenness, scratches, dust, drum damage, etc. A coating drum having good properties was obtained. In addition, since it is possible to apply a large number of stable continuous coatings and complete automation for a long time, a product of high quality and high reliability without dust and dirt is possible.

Example 6 Coating, drying and separation were carried out by the sequential and continuous coating device shown in FIG.
That is, mirror-finished diameter 80 mm, height 355 m
m, 283 g of aluminum drum support, and the coating liquid compositions UCL-1, CGL-2, and
Adjust CTL-1 and slide hopper type coating device 40
A (for UCL-1), 40B (for CGL-2), 4
Dry film thickness of 1.0 at 0C (for CTL-1)
Three layers were successively applied in layers and separated so as to have a thickness of .mu.m, 2.2 .mu.m and 23 .mu.m, a photoreceptor was prepared and the separated state was observed. In this embodiment, the upper gripper 67A is used in the fifth embodiment.
Same as, but with 0 ring made of chloroprene rubber,
As the lower gripper 64, a plate-shaped gripper made of natural rubber having brass pins 641 that can be pushed in as shown in FIG. 11C was used. The upper gripper 67A and the lower gripper 64 simultaneously grip the drum base body from the inward direction by, for example, a three-way chuck. Table 4 shows the results.

[0103]

[Table 4]

UCL-1 coating liquid composition Copolymer nylon resin (CM-8000 manufactured by Toray) 30 g Methanol / n-butanol = 10/1 (Vol. Ratio) 10 l CGL-2 coating liquid composition Perylene pigment (CGM- 2) 500 g Butyral resin (S-REC BX-L Sekisui Chemical Co., Ltd.) 500 g Methyl ethyl ketone 24 l The above coating liquid composition (solid content weight ratio CG for solid content)
(M-2: BX-L = fixed at 2: 1) dispersed using Sansamil for 20 hours.

CTL-1 coating liquid composition CTM-1 5 kg Polycarbonate (Z-200 manufactured by Mitsubishi Gas Chemical Co., Inc.) 5.6 kg 1,2-dichloroethane 28 l Solid content weight ratio CTM-1: Z-200 for solid content.
= 0.89: 1, the separation gripping device of the present invention, which is different from the top and the bottom, is used for good separation and ejection, and the effects of vibration, shock, etc. are not transmitted to the lower base drum 1B, and the base drum 1A tilts. It can be discharged without changing the vertical state. That is, it is preferable that the upper gripper does not tilt the base drum 1A, and the lower gripper grips or releases the lower base drum 1A.
It is better to not transmit vibration to B. Therefore, there are no coating defects such as coating unevenness, film thickness unevenness, scratches, dust, drum damage, etc.
Further, the substrate drum 1A was not fallen and damaged, and a coating drum having good coating properties was obtained. In addition, since it is possible to apply a large number of stable continuous coatings and complete automation for a long time, a product of high quality and high reliability without dust and dirt is possible.

The obtained photosensitive member No. 4-1 was actually copied with a U-BIX 3035 copying machine manufactured by Konica Corporation, and uneven density, fog unevenness and image defects (black dots,
It was good with no white spots, dust, streaks, etc.

[0107]

According to the separating and discharging apparatus and method according to the first aspect of the present invention (Claims 1 and 2), gripping and separating can be performed without damaging or deforming the base drum, and the base drum is gripped. A force that tears and separates the coating film that has been applied and dried between the adjacent substrate drums, which is not transmitted to the lower substrate drum, is reliably transmitted between the cylindrical substrates.

According to the separating and discharging apparatus and method of the second aspect of the present invention (Claims 3 and 4), polymer powder and Prevents pigment powder, etc. from scattering and adhering to the cylindrical substrate.Even when the cylindrical substrate is separated, small pieces of the coating film do not scatter and reattach to the surface of the coating film. It prevents the occurrence of fatal coating film defects when small pieces of coating film adhere to the image carrier, does not cause image defects of the image carrier, and does not cause image defects such as black spots and white spots.

According to the separating and discharging apparatus and method according to the third aspect of the present invention (claims 5 and 6), the gripping separation can be surely carried out without giving damage or deformation to the base drum, and coating between adjacent base drums can be performed. , The force to tear and separate the dried coating film is surely transmitted between the cylindrical substrates. The substrate drum can be held vertically and discharged, so that it can be stably placed on the pallet outside the device without falling. can do.

[Brief description of drawings]

FIG. 1 is a perspective view showing the overall configuration of a continuous coating apparatus according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the continuous coating device according to the present invention.

FIG. 3 is a sectional view showing a positioning unit and a coating unit.

FIG. 4 is a perspective view of the coating means.

FIG. 5 is a sectional view showing the coating means and a drying hood.

FIG. 6 is a sectional view of the dryer.

FIG. 7 is a state diagram showing a separation process by a separation and discharge unit.

FIG. 8 is a perspective view and a cross-sectional view showing an embodiment of a separation and discharge gripping device according to claims 1 and 2 of the present invention.

FIG. 9 is a perspective view and a cross-sectional view showing another embodiment of the separation discharge gripping device.

FIG. 10 is a perspective view showing an embodiment of a separation and discharge gripping device according to claims 3 and 4 of the present invention.

FIG. 11 is a perspective view showing an embodiment of a separation and discharge gripping device according to claims 5 and 6 of the present invention, a sectional view, and a perspective view showing another embodiment of the lower gripper.

[Explanation of symbols]

1, 1A, 1B, 1C, 1D Cylindrical substrate (base drum, conductive support) 10 Supplying means 20 Conveying means 21, 22 Grasping means 30 Positioning means 40 Coating means (vertical type coating apparatus, slide hopper type coating apparatus) ) 40A coating means (vertical coating apparatus, slide hopper coating apparatus) 40B coating means (vertical coating apparatus, slide hopper coating apparatus) 40C coating means (vertical coating apparatus, slide hopper coating apparatus) 41 coating head ( Coater, hopper application surface 50 Drying means 60 Separating and discharging means (separator, separating and discharging device) 61 Vertical moving robot stage 62 Air cylinder 63 Upper gripper (upper chuck, first gripper) 64 Lower gripper (lower chuck) , Second gripper) 65 pipe member 66 suction pad 67A, 67B suction pad (air Bag member, gripper)) 68A, 68B Intake slit member 69A Upper gripper 69B Lower gripper 70 Intake port

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hirohiko Seki 2970 Ishikawa-cho, Hachioji, Tokyo Konica stock company (72) Inventor Mao Asano 2970 Ishikawa-cho, Hachioji, Tokyo Konica stock company

Claims (10)

[Claims] 1. A vertical coating device continuously coats and dries a coating liquid on the outer peripheral surface of the cylindrical substrates stacked with their cylindrical axes aligned, and then the coating device grips the coating liquid. In a device for separating and discharging a cylindrical base material that separates and discharges while gripping the inner surface of a finished cylindrical base material, the separation and discharge gripping device has a suction mechanism including a gripper that suction-holds the inner surface of the cylindrical base material. And a device for separating and discharging a cylindrical substrate. 2. A vertical coating device continuously coats and dries the coating liquid on the outer peripheral surface of the cylindrical substrates stacked with their cylindrical axes aligned, and then the coating device grips the coating liquid. In a method for separating and discharging a cylindrical base material, which separates and discharges while gripping the inner surface of a finished cylindrical base material, separate and discharge by a separation and discharge gripping device having a suction mechanism for sucking and gripping the inner surface of the cylindrical base material. A method for separating and discharging a cylindrical substrate, the method comprising: 3. A vertical coating device continuously coats and dries the coating liquid on the outer peripheral surface of the cylindrical substrates stacked with the cylinder axes of the cylindrical substrates aligned with each other, and then the coating device uses a gripping device. In a separation discharge gripping device for a cylindrical base material that separates and discharges while gripping an inner surface of a finished cylindrical base material, the separation discharge gripping device for a cylindrical base material, wherein the separation discharge gripping device is provided with an intake mechanism. . 4. The coating liquid is continuously applied and dried by a vertical coating device on the outer peripheral surface of the cylindrical substrates stacked with the cylinder axes of the cylindrical substrates aligned, and then the coating is completed by the gripping device. In a method for separating and discharging a cylindrical base material that separates and discharges while gripping an inner surface of the cylindrical base material, the cylindrical base material is separated and discharged by a separation and discharge gripping device having an intake mechanism. Separation and discharge grip method. 5. The coating liquid is continuously applied and dried by a vertical coating device on the outer peripheral surface of the cylindrical base material stacked with the cylindrical axes of the cylindrical base material aligned, and then the coated cylinder is applied. Of a cylindrical base material to be separated and discharged by a first gripper that grips the inner surface of the cylindrical base material and a second gripper that grips the inner surface of the cylindrical base material that is adjacent below the cylindrical base material In the discharge gripping device, the first gripper and the second gripper have different structures from each other. 6. The coating liquid is continuously applied and dried by a vertical coating device on the outer peripheral surface of the cylindrical base material that is stacked with the cylinder axes of the cylindrical base material aligned, and then the coated cylinder is applied. Of a cylindrical base material to be separated and discharged by a first gripper that grips the inner surface of the cylindrical base material and a second gripper that grips the inner surface of the cylindrical base material that is adjacent below the cylindrical base material In the discharge gripping method, a first gripper and a second gripper having different structures are provided.
A method for separating and discharging a cylindrical base material, characterized in that the cylindrical base material is separated and discharged by the gripper. 7. The separation and gripping device for the cylindrical substrate according to claim 1, wherein the gripper is made of a polymer material. 8. The separation and gripping device for a cylindrical base material according to claim 1, wherein the cylindrical base material is an aluminum drum. 9. The separation discharge gripping device for a cylindrical base material according to claim 5, wherein the first gripper is a horizontal contact type inner surface of the cylindrical base material. 10. The separation discharge gripping device for a cylindrical base material according to claim 5, wherein the second gripper is a vertical contact type inner surface of the cylindrical base material.