JPH03181360A - Roll coater - Google Patents

Abstract

PURPOSE:To improve the finished appearance, to continuously supply a body to be coated to a conveyor mechanism and to miniaturize the entire coater by annularly forming the conveyor mechanism for the body with plural pallets to be stopped at plural positions. CONSTITUTION:The conveyor mechanism is annularly formed with plural pallets 13A-13D to be stopped at plural positions A-D. A coating agent deposited on a coating roller is applied at a roll coater part 11 on the surface of the body P detachably fixed to the conveyor mechanism and conveyed. The agent is irradiated with UV, for example, at the post-treating part 12 and cured. Consequently, the finished appearance is improved, a body to be coated is continuously supplied to the conveyor mechanism, the entire coater is miniaturized, and the length of the coating roller is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a roll coater device that applies a coating agent to the surface of a flat plate-shaped object using an application roller.

[Conventional technology]

FIG. 6 is a schematic diagram showing the configuration of an example of a conventional roll coater device.

In FIG. 6, reference numeral 1 denotes a coating agent reservoir, which stores a coating agent C such as, for example, liquid paint or adhesive.

Reference numeral 2 denotes a pumping roller which, for example, rotates counterclockwise to deposit the coating agent C in the coating agent reservoir 1 on the outer periphery and draw it up.

Reference numeral 3 denotes a transfer roller, which rotates clockwise to transfer the coating agent C adhering to the outer periphery of the pumping roller 2, and transfers it to the outer periphery of the coating roller 5, which will be described later.

4 is a doctor that can adjust the film thickness of the coating agent C attached to the outer periphery of the transfer roller 3 to an arbitrary thickness; 5 is a coating roller;
The coating roller 5 rotates counterclockwise, for example, to apply the coating agent C transferred from the transfer roller 3 onto an object P to be coated, such as an optical disk.

6A, 6B, 6C, 6D, and 6E indicate respective conveyance rollers that constitute a conveyance mechanism that conveys the object to be coated P. For example, by rotating clockwise, the object to be coated P is conveyed from the left side to the right side. be.

Next, the operation will be explained.

First, when each roller 2.3 and 5 is rotated in the direction shown by a motor (not shown), the coating agent C in the coating agent reservoir 1 adheres to the outer periphery of the drawing roller 2, is drawn up, and is transferred to the transfer roller 3. After being adjusted to a predetermined film thickness by the doctor 4, it is attached to the coating roller 5.

In addition, by rotating the motor of the conveyance mechanism (not shown) and rotating each of the conveyance rollers 6A to 6E clockwise, the object to be coated P placed on the left conveyance rollers 6A and 6B is rotated.
can be transported to the right side.

Therefore, with each roller 2, 3, and 5 rotated in the illustrated direction, the left conveying roller 6A, 6
By placing the object P to be coated on B, the coating agent C can be applied to the surface of the object P to a predetermined thickness.

However, in the roll coater device described above, each conveyance roller 6A
Since the object to be coated P is conveyed in one direction by the rotation of ~6E, that is, the object to be coated P is not fixed to the conveyance mechanism, the object to be coated P may mesh with the application roller 5, or the object to be coated P When the object P is separated from the application roller 5, an irregular movement (irregular movement) occurs in which the object P is tilted relative to the surface formed by the transport rollers 6A to 6E.

Therefore, due to the misalignment of the object P to be coated, the coating roller 5
If the workpiece P is scratched or the workpiece P is not coated with the coating agent C when the workpiece P is engaged with the application roller 5 or when the workpiece P is separated from the application roller 5. There was an inconvenience that the coating agent C was applied even to the good surface, resulting in poor finished appearance.

When the coating agent C is, for example, a hot melt type, when the object P to be coated leaves the coating roller 5, a stringing phenomenon occurs in which the coating agent C becomes stringy due to the irregular movement of the object P, resulting in the appearance of the finished product. There was also the inconvenience that it worsened.

FIG. 7 is a schematic diagram showing the configuration of a conventional roll coater device that eliminates the above-mentioned disadvantages, and the same parts as in FIG. 6 are given the same reference numerals.

In FIG. 7, reference numeral 7 denotes a fixing table constituting the conveyance mechanism, which conveys the removably fixed object P to be coated from the left side to the right side.

Reference numeral 8 indicates a motor constituting the transport mechanism, and the fixed table 7
This is a drive source that reciprocates in the direction of the arrow.

Next, operations different from those shown in FIG. 6 will be explained.

First, by rotating the motor 8, the fixed table 7 can be moved back and forth.

Therefore, with each roller 2, 3, and 5 rotated in the direction shown in the figure, and with the fixing table 7 positioned on the left side, the object to be coated P is mounted, fixed, and transported to the right side (the position indicated by the dotted line). After applying the coating agent C to a predetermined thickness on the surface of the object P to be coated, the object P to be coated is taken out from the fixing table 7 with the fixing table 7 positioned on the right side.

[Problems to be Solved by the Invention] Since the conventional roll coater device is configured as described above, the inconvenience in the case of FIG. 6 can be solved in the case of FIG. As a result, loss time increases, and there are disadvantages in that the object P to be coated cannot be continuously supplied to the conveying mechanism.

Further, in the roll coater apparatus shown in FIGS. 6 and 7, the coating roller 5 and the like are arranged above the conveyance mechanism, so that the coating agent C is squeezed between the transfer roller 3 and the coating roller 5, and As a result, the coating agent C overflowing from the end of the coating roller 5 falls onto the object P to be coated. Therefore, it is necessary to arrange a tray to receive the overflowing coating agent C.

Therefore, since the receiver cannot supply the object P to be coated to the portion where the plate is arranged, there is a disadvantage that the portion of the receiver where the application roller 5 is arranged becomes longer.

This invention was made in order to eliminate the above-mentioned disadvantages, and it improves the finished appearance, allows the objects to be coated to be continuously fed to the conveyance mechanism, downsizes the entire device, and reduces the length of the coating roller. To provide a roll coater device that can shorten the length.

[Means to solve the problem]

The roll coater device according to the present invention has a transport mechanism configured in a ring shape with a plurality of pallets that are stopped at a plurality of positions.

Further, in a roll coater device according to another invention, the conveying mechanism is constituted by a rotary table which is divided into a plurality of parts and stopped at an angle, the coating roller is formed into a conical shape corresponding to the rotary table, and the rotary table and the coating roller are connected to each other. The circumferential speeds of corresponding parts are matched.

Furthermore, in a roll coater device according to another invention, the conveyance mechanism is arranged above the application roller.

Further, in a roll coater device according to still another aspect of the invention, the conveying mechanism is disposed above the coating roller, and the length of the coating roller is set to be equal to the width of the object to be coated.

[For production]

In the roll coater device according to the present invention, the conveying mechanism is configured in an annular manner with a plurality of pallets that stop at a plurality of positions, so by determining the supply and discharge positions of the object to be coated, the object to be coated is continuously transferred to the conveying mechanism. The coating agent can be applied to the surface of the object to be coated.

In addition, in a roll coater device in another invention, the conveying mechanism is configured with a rotary table that is divided into a plurality of parts and stopped at an angle, and the application roller has a conical shape that corresponds to the rotary table, and the rotary table and the application roller correspond to each other. Since the circumferential speeds of the parts to be coated are the same, by determining the supply and discharge positions of the coated body, it is possible to continuously feed the coated body to the conveyance mechanism and apply the coating agent to the surface of the coated body. I can do it.

Further, in the roll coater device according to another invention, since the conveyance mechanism is arranged above the application roller, the coating material falling from the application roller does not adhere to the surface of the object to be coated.

Furthermore, in a roll coater device according to another invention, the conveyance mechanism is disposed above the coating roller, and the length of the coating roller is set to be equal to the width of the object to be coated. Can be shortened.

〔Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a schematic diagram showing the configuration of a roll coater device according to an embodiment of the present invention.

In FIG. 1, reference numeral 11 denotes a roll coater section for applying a coating agent C onto the surface of an object to be coated P, and is composed of a coating agent reservoir 1 to an application roller 5 shown in FIGS. 6 and 7.

12 is a post-processing unit that performs a process of curing the coating agent C applied to the object P, for example by irradiating it with ultraviolet rays; 13A;
13B, 13C, 13D indicate each pallet constituting the transport mechanism, and each pallet 13A, 13B, 13C, 1
3D circulates from position A to position A and then returns to position A, as shown by the arrow, and the roll coater section 11 is arranged between position A and position 1iB, and between position C and position 1iB. A post-processing section 12 is arranged between the two.

14A, 14B, 14C, 14D are each pallet 13A-
13D shows a fixing table provided at 13D, which fixes the object to be coated P in a removable manner.

Reference numeral 15 indicates a supply arm section that supplies the objects P to the pallets 13A to 13D located at position 1tA, and 16 indicates a discharge arm section that takes out the objects P from the pallets 13A to 13D located at position 1tA. Parts 15 and 16 are pivotable about one end.

Figure 2 (a) and Cb) show the fixed table 14A-14.
It is a top view and sectional view which show an example of D.

In FIG. 2, reference numeral 14a indicates a lining rubber plate, and a center hole 14a in which the center of the object P is aligned.
1 is provided, and a large number of suction holes 14a2 are provided around this center hole 14a1.

14b shows the upper plate (lining rubber plate)
14a is adhered to maintain airtightness, and a suction hole 14b communicating with the suction hole 14a2 is provided.

14c indicates a lower plate attached to the upper plate 1-14b with mounting screws 14e, and includes suction holes 14az.
*A suction hole 14c1 communicating with 14b+ is provided.

14d indicates an O-ring disposed between the upper and lower plates 14b and 14c to maintain airtightness.

Next, the operation will be explained.

First, while the pallets 13A to 13D constituting the transport mechanism are sequentially moving, the supply arm 15 is driven to move the object P to be coated. When placed on the pallet located at A, for example, pallet 13A, the fixed table 1
Since the surface of the object to be coated P is in contact with the lining rubber plate 14a of 4A, the object to be coated P is brought into contact with the lining rubber plate 14a by exhausting air from the suction hole 14C1 of the lower plate 14c using an exhaust mechanism (not shown). It is suctioned and fixed in a flat state.

Place the pallet 13A on which the object P to be coated has been fixed in position 1.
When the object to be coated P is conveyed from iA to position 1iD, the object to be coated P is
Coating agent C is applied to the substrate, and in the process of being transported from position C to position C, if the coating agent C is, for example, an ultraviolet curing type, the post-processing section 12 irradiates ultraviolet rays to cure the coating agent C. .

Then, by driving the discharge arm part 16 at the position, the object to be coated P on which the coating agent C has been cured is palletized) 13A
Take it out.

Incidentally, the same operation is performed for the other pallets 13B to 13D.

Therefore, according to this embodiment, the object to be coated P can be fixed and transported by the transport mechanism, and the transport mechanism can be connected to a plurality of pallets 13.
Since the structure is annular with A-13B, the finished appearance of the coating agent C applied to the object P is improved without causing irregular movement of the object P, and the object P is continuously transferred to the conveying mechanism. can be supplied to

FIG. 3 is a schematic diagram showing the configuration of a roll coater device according to another embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same parts.

In FIG. 3, reference numeral 21 indicates a rotary table constituting the transport mechanism, and fixed tables 14A to 14C are provided at positions A to C divided into 120 degrees, respectively.

A roll coater section 11 is disposed between position A and position B, and a post-processing section 12 is disposed between position B and position 1fCO.

FIG. 4 is a side view showing the shape of the application roller adapted to the embodiment of FIG. 3.

In FIG. 4, reference numeral 5A indicates a conical application roller, the part with the smaller radius corresponds to the center part of the rotary table 21, and the part with the larger radius corresponds to the outer peripheral part of the rotary table 21.

Corresponding parts of the application roller 5A and the rotary table 21 rotate at the same circumferential speed.

According to this embodiment, the same effects as the embodiment shown in FIG. 1 can be obtained, and since the conveyance mechanism can be made smaller, the entire apparatus can be made smaller.

In addition, in the embodiments shown in FIGS. 1 and 3, the coating agent C is applied to the object P to be coated.
Although an example is shown in which the coating agent C is applied only once, it is also possible to provide a plurality of roll coater sections, post-processing sections, etc., and apply a plurality of coating agents C to the object P in multiple layers with one roll coater device.

FIG. 5 is a schematic diagram showing the configuration of a roll coater apparatus according to still another embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same parts.

In FIG. 5, ■ indicates a coating agent reservoir for storing coating agent C, and is provided with a supply port 1a through which the coating agent C is supplied and a discharge port 1b through which overflowing coating agent C is discharged.

Reference numeral 31 denotes a doctor adjustment section, which moves the coating agent reservoir 1 in the vertical direction to move the pumping roller 2 in the left-right direction, thereby adjusting the film thickness of the coating agent C adhering to the outer periphery of the pumping roller 2. .

Reference numeral 32 indicates a tray that receives the coating agent C falling from the coating roller 5, and is provided with a discharge port 32a for discharging the coating agent C.

Reference numeral 33 denotes a coating agent tank, into which the coating agent C is newly supplied, and the coating agent reservoir and receiver are discharge ports 1b and 32 of the tray 32.
The coating agent C is supplied from a.

Reference numeral 34 supplies the coating agent C from the coating agent tank 33 to the supply port 1 of the coating agent reservoir 1.
The pump that supplies water is shown.

Note that a conveyance mechanism (not shown) is located above the application roller 5.

Next, the operation will be explained.

First, the pumping roller 2 is pumped up by a motor (not shown).
, when the application roller 5 is rotated in the direction of the arrow, the application agent reservoir 1
The coating agent C adheres to the outer periphery of the pumping roller 2 and is pumped up, and after being adjusted to a predetermined film thickness by the doctor 4, it is squeezed by the pumping roller 2 and the coating roller 5, and as a result, it overflows from the end of the coating roller 5. .

The coating agent C overflowing from the end of the coating roller 5 is received in the tray 32 and supplied to the coating agent tank 33.

Therefore, according to this embodiment, since the coating agent C does not fall onto the surface of the object to be coated that is transported by the transport mechanism, the finished appearance of the coating agent applied to the object to be coated can be improved.

In addition, by making the length of the applicator roller 5 approximately the same as the width of the object to be coated (the length in the axial direction of the applicator roller 5), the length of the applicator roller 5 can be shortened, making the entire apparatus compact. can be converted into

In addition, although the above-mentioned Example demonstrated the case where the coating agent C was liquid, the coating agent C of a hot melt type may be sufficient.

Furthermore, although the embodiments shown in FIGS. 1 and 3 do not mention the positional relationship between the conveyance mechanism and the coating roller 5, the conveyance mechanism may be placed above or below the coating roller 5.

〔Effect of the invention〕

As described above, according to the present invention, the object to be coated can be fixed and transported by the conveyance mechanism, and since the conveyance mechanism is configured in a ring shape with a plurality of pallets or a rotary table, the coating material applied to the object to be coated can be transferred. The finished appearance of the coating material can be improved, and the object to be coated can be continuously supplied to the conveyance mechanism.

Furthermore, since the transport mechanism can be made smaller, the entire apparatus can be made smaller.

Further, since the conveyance mechanism is disposed above the application roller, the finished appearance of the coating material applied to the object to be coated can be improved, and the length of the application roller can be shortened.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of a roll coater device according to an embodiment of the present invention, FIGS. 2(a) and (b) are a plan view and a sectional view showing an example of a fixing table, and FIG. 3 is a schematic diagram showing the configuration of a roll coater device according to an embodiment of the present invention. FIG. 4 is a side view showing the shape of a coating roller adapted to the embodiment of FIG. 3; FIG. 5 is a schematic diagram showing the configuration of a roll coater device according to another embodiment of the present invention; FIG. Schematic diagram showing the configuration of a roll coater device according to an example. FIGS. 6 and 7 are schematic diagrams showing the configuration of a conventional roll coater device. 1... Coating agent reservoir, 2... Pumping roller, 3...
Transfer roller, 4... Doctor, 5, 5A... Transfer roller, 11... Roll coater section, 12... Post-processing section,
13A-13D...Pallet, 14A-14D...
Fixed table, 15... Supply arm section, 16... Discharge arm section, 21... Rotating table, P... Subject to be coated, C... Coating agent.

Claims (4)

[Claims] (1) In a roll coater device that applies a coating agent attached to a coating roller to the surface of an object to be coated that is removably fixed to a conveyance mechanism and conveyed, the conveyance mechanism is stopped at a plurality of positions. A roll coater device characterized by an annular configuration of pallets. (2) In a roll coater device that applies a coating agent attached to a coating roller to the surface of an object to be coated that is removably fixed to a conveyance mechanism and conveyed, the conveyance mechanism is stopped at an angle divided into a plurality of parts. A roll coater device comprising a rotary table, wherein the application roller has a conical shape corresponding to the rotary table, and the circumferential speeds of corresponding parts of the rotary table and the application roller are made to match. (3) In a roll coater device that applies a coating agent attached to a coating roller to the surface of a workpiece that is removably fixed to a conveyance mechanism and is conveyed, the conveyance mechanism is arranged above the coating roller. A roll coater device characterized by: (4) In a roll coater device that applies a coating agent attached to a coating roller to the surface of an object to be coated that is detachably fixed to a conveyance mechanism and conveyed, the conveyance mechanism is arranged above the coating roller. Also, a roll coater device characterized in that the length of the application roller is made substantially the same as the width of the object to be coated.