JPS6223467A - Apparatus for forming membrane - Google Patents

Abstract

PURPOSE:To perform the painting of a uniform thickness without irregularity, in forming a painting surface on a belt conveyor by supplying a stock material to a mouth-piece or a spray gun, by reciprocally moving the mouth-piece or the like to the lateral direction of the belt conveyor in a specific locus. CONSTITUTION:By moving a cap to the lateral direction of a belt conveyor in a process of a b c d, a stock material can be supplied to the belt conveyor continuously running to the direction shown by an arrow at a predetermined speed in a uniform thickness over the entire width thereof. In this case, the return distance (b) of the mouth-piece is made equal to the width of the mouth- piece. When a spray gun is moved with respect to a painting surface at a prede termined speed, the spray gun is reciprocally moved in the order of c b a d. In both cases, the mouth-iece and the spray gun reciprocally move along an angular rocking rail comprising the endless chain mounted over a pair of sprocket wheels.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention provides a belt conveyor running at a predetermined speed, and a mouthpiece that is reciprocated in the width direction of the conveyor belt, which is a direction intersecting the running direction of the belt conveyor. A spray gun is used to spray raw materials to form a layer of raw materials on a conveyor belt, or to move a spray gun at a predetermined speed against a painted surface, and at the same time move the spray gun back and forth in a direction that intersects with the direction of movement. The present invention relates to a thin film forming device suitable for use in spraying paint from a spray gun to paint a painted surface.

[Prior art] In order to dry raw materials using a vacuum drying device, the raw materials to be dried are continuously fed from a nozzle to a belt conveyor installed in a vacuum drying chamber to form a layer of raw materials on the conveyor belt, and then The layered raw material is transported by a belt conveyor while vacuum drying of the raw material is carried out. In this case, if the thickness of the layer of raw material formed on the conveyor belt is uneven, the drying of the raw material will be uneven.

By the way, if the width of the mouthpiece for feeding raw materials to the belt conveyor is approximately equal to the width of the conveyor belt, it is possible to supply the raw material over the entire width of the conveyor belt, but if the width of the mouthpiece is wide, A large amount of raw material flows out from the center compared to both sides, and the thickness of the raw material at the center of the conveyor belt becomes thicker than at both sides, and the film may be damaged due to local clogging of the mouth opening. , uneven drying of raw materials occurs. On the other hand, if a narrow-width mouthpiece is used, the raw material can be supplied with an almost uniform thickness and the above-mentioned problem will not occur, but the raw material will only be supplied to a portion of the width of the conveyor belt. Supply efficiency is poor.

In order to supply raw materials across the entire width of a conveyor belt using a narrow mouthpiece, it is sufficient to move the mouthpiece back and forth in the width direction of the conveyor belt, which is perpendicular to the running direction of the belt conveyor. Since the conveyor belt is continuously traveling, simply moving the nozzle back and forth in the width direction of the conveyor belt will cause the raw material to be supplied onto the conveyor belt in a zigzag pattern.

The above also applies to the case where the spray gun is moved at a predetermined speed relative to the painted surface and the paint is sprayed from the nozzle to paint the painted surface.

[Problems to be Solved by the Invention] The present invention solves the problem of uneven thickness of raw materials or coatings when a wide mouthpiece or spray gun is used, or when a narrow mouthpiece or spray gun is used. This was done to solve problems such as poor raw material supply efficiency, poor painting work efficiency, and uneven supply due to zigzag when using a method.

[Means for Solving the Problems] The present invention uses a narrow mouthpiece or spray gun so that raw materials or paint can be sprayed in a uniform thickness, and the mouthpiece or spray gun is connected to a belt conveyor. It is moved back and forth in the direction of travel or in a direction that intersects with the direction of movement of the spray gun, and supplies raw materials from the nozzle to the belt conveyor to form a layer of raw materials on the belt conveyor, or sprays paint from the spray gun onto the painted surface. The present invention is of a type in which a painted surface is painted, and the principle of the present invention will first be explained with reference to FIGS. 1 and 2.

In FIGS. 1 and 2, a belt 1 to a conveyor that runs continuously at a predetermined speed in the direction of the arrow is moved in the width direction of the belt conveyor in the following manner to obtain a uniform thickness over its entire width. The raw material is supplied or ejected in this manner. .

In Fig. 1, the mouthpiece moves from one end of the belt conveyor toward the other end of the belt conveyor on a straight line a inclined upward in the running direction of the belt conveyor, and the mouthpiece moves toward the other end of the belt conveyor. Once the cap reaches the opposite end of the belt conveyor, the cap is tufted a distance away from the belt conveyor's running direction, and then the cap runs from the other end of the belt conveyor to the belt conveyor's running direction on a straight line C that slopes upward toward the belt conveyor's one end. When the nozzle reaches one end of the belt conveyor, the nozzle is returned to the side opposite to the running direction of the belt conveyor by a distance fid equal to the distance 1b.

By moving the nozzle in the width direction of the belt conveyor in the stroke a-)1)-+C-+d, the raw material is supplied from the nozzle to the running belt conveyor as shown in Figure 2. Become. There, the distance 111 to which the cap is returned
1b (b=d) is equal to the width of the cap (
By setting the width of the nozzle to be equal to the distance the nozzle is returned to, it is possible to supply the raw material with a uniform thickness over the entire width of the belt conveyor.

The same principle can also be used when painting a painted surface by moving the spray gun at a predetermined speed and spraying paint from the spray gun while moving the spray gun back and forth in a direction that intersects with the direction of movement. It can be carried out with However, in this case, the spray gun moves at a predetermined speed relative to the painted surface (immovable member), so the reciprocating stroke of the spray gun that intersects the direction of movement of the spray gun is the first.
The trajectory is a'→b-→C-→d- as shown in FIG.

According to the present invention, the nozzle or the spray gun is moved back and forth in the above-described manner to form a layer of raw material with a uniform thickness on a belt conveyor or to form a coating film with a uniform thickness on a painted surface. , an angular swing rail having a predetermined width and rotatably supported at the center, and a mouthpiece or spray gun that moves back and forth along the angular swing rail;
means for reciprocating the nozzle or spray gun along the angular swing rail; and means for reciprocating the angular swing rail at a predetermined angle from the center line when the nozzle or spray gun reaches each end of the angular swing rail. There is provided a thin film forming apparatus comprising:

As a means for reciprocating the nozzle or the spray gun along the angular swing rail when carrying out the present invention, it is preferable to use a cheno, which runs endlessly with a pair of sprocket boilers, and a cheno that runs endlessly. The means for reciprocating the angle swing rail by a predetermined angle from the center line when the spray gun reaches each end of the angle swing rail is a hydraulic cylinder whose screw rod expands and contracts by switching a solenoid valve, or a hydraulic cylinder whose screw rod expands and contracts by switching a solenoid valve. A device consisting of a spring that always presses the angular swing rail at a predetermined angle and a pair of cams that reciprocate and rotate the angular swing rail against the spring can be suitably used.

[Operation of the Invention] The operation of the present invention will be described by taking as an example a case where raw material is supplied from a mouthpiece to a belt conveyor so as to have a uniform thickness over the entire width of the belt conveyor.

The belt conveyor is continuously running at a predetermined speed in the direction indicated by the arrows in FIGS. 1 and 2. The angle taking rail is tilted upward in the running direction of the belt conveyor by a predetermined angle from the center line by means of reciprocating the angle swinging rail (straight line a in Fig. 1), and the mouthpiece is tilted upward by means of reciprocating the mouthpiece. It is moved along the angle swing rail from the lower end (one end of the belt conveyor) to the upper end (the other end of the belt conveyor).

When the mouthpiece reaches the upper end of the angle swinging rail (the other end of the belt conveyor), the angle swinging rail is rotated by a predetermined angle from the center line by means for reciprocating the angle swinging rail, and the mouthpiece is rotated by a predetermined angle from the center line. It is returned by a distance equal to the width in a direction opposite to the running direction of the belt conveyor (straight line b in FIG. 1).

The angle swing rail is rotated by a predetermined angle from the center line, so that the side that used to be the bottom side becomes the top side, and the side that was the top side becomes the bottom side, so that the belt conveyor body (as shown in Figure 1) is turned. Straight line C), the mouthpiece is moved from the lower end (the other end of the belt conveyor) to the upper end (one end of the belt conveyor) of the angle swinging rail by means of reciprocating the mouthpiece. be moved along.

When the cap reaches the upper end of the angle swing rail (one end of the belt conveyor), the angle swing rail is rotated by a predetermined angle from the center line by means of reciprocating the angle pickup rail, and the cap is It is returned by a distance equal to the width in a direction opposite to the running direction of the belt conveyor (straight line d in FIG. 1).

A belt conveyor that runs continuously by reciprocating the angular swing rail in the manner described above and supplying raw materials from the mouthpiece onto the belt conveyor while reciprocating the mouthpiece along the angle swinging rail in the manner described above. In the manner shown above in FIG. 2, the raw material is fed uniformly over the entire width of the belt conveyor.

[Example] Figures 3 to 6 show the bell 1 installed in the vacuum drying chamber.
- A first embodiment of the present invention is shown in which the present invention is applied to vacuum drying the raw material while continuously supplying the raw material from the nozzle onto the conveyor and transferring the raw material by the belt conveyor.

Figure 3 shows the belt conveyor, the whole of which is indicated by 1, and the mouthpiece shown by 1.
The relationship with a thin film forming apparatus, generally designated 2, for forming a thin film of raw material of uniform thickness on a belt conveyor 1 by moving according to steps a-+b-+c-+d shown in the figure is shown.

The belt conveyor 1 has a drive shaft 3a and a driven shaft 3b that are spaced apart from each other by a predetermined distance, and both wheels 3a.

The drive shaft 3a is a normal one consisting of a belt conveyor 4 passed between 3b, and the drive shaft 3a is driven by a dual output shaft type reducer motor 5 via a continuously variable transmission with a reducer 6 and a chain drive 7. The belt competition 174 runs continuously in the direction of the arrow. The thin film forming apparatus 2 is also driven by a dual output shaft type speed reducer motor 5 which drives the belt conveyor 1 via a chino 8.

4 to 6 show details of a thin film forming apparatus (hereinafter simply referred to as the apparatus), in which the belt conveyor 1 and the apparatus 2 are provided in a vacuum drying chamber 9. The device 2 has a pair of sprocket wheels 10a, 10b spaced apart by approximately the width of the bell 1 and the conveyor 1, and a pair of chinos 11a, Ilb between the sprocket wheels 10a, 10b. The stake has been passed.

One of the sprocket wheels 10a is a driving wheel, and the other sprocket wheel 10b is a driven wheel, and the driving sprocket wheel 10a is connected to the dual output shaft type reducer motor 5 shown in FIG.
As a result, the chinos 11a and 11b are driven by the rotary drive shaft 12 via the engine 8, and thereby the chinos 11a and 11b continuously travel in the direction of the arrow in FIG. The rotational drive @12 of the drive sprocket wheel 10a and the rotation shaft of the driven sprocket wheel 10b are supported by a vacuum-sealed rotary bearing 13 at the portion where they pass through the vacuum drying chamber 9.

Connecting rods 1 with rotating rollers are attached to the chains 11a and 11b, with a spacing approximately between both sprocket wheels 10a and 10b.
4 and a connecting rod 15 for position detection are attached, and these connecting rods 14, 15 prevent a slide sick position detector 29, which will be described later, from being activated.

Belt conveyor 1 across the width direction of belt conveyor 1
A fixed rail 17 is provided perpendicular to the traveling direction of the vehicle, and has a linearly traveling slide chic 18 that is guided by this fixed rail 17 and travels in a straight line. A roller moving groove 18a is formed in this linearly traveling slide shifter 18, and a roller 16 provided on the rotary roller connecting rod 14 is engaged with this roller moving groove 188.

Therefore, the connecting rod 14 with rotating rollers fixed to the connecting rods 11a and 11b, which are moved in the direction of the arrow in FIG.
4, the linear traveling slide shifter 18 also moves in the direction of the arrow. When the connecting rod 14 with rotating rollers comes to the driven sprocket wheel 10b shown in FIGS. 4 and 5, the rollers 16 of the connecting rod 14 with rotating rollers are transferred within the roller movement grooves 18a of the linearly traveling slide shifter 18. Then, as the chains 11a and 11b move, the connecting rod 14 with rotating rollers connects with the drive sprocket wheel 10.
It moves to the a side, and the linear traveling slide chic 18 is also moved to the drive sprocket wheel 10allll by being driven by the connecting rod 14 with rotating rollers. When the connecting rod 14 with rotating rollers comes to the drive sprocket wheel 10a, the rollers 16 of the connecting rod 14 with rotating rollers move within the roller movement groove 18a of the linear traveling slide shifter 18 and descend, and in the above-described manner, the connecting rod 14 with rotating rollers moves in a straight line. The slide shifter 18 moves toward the driven sprocket wheel 10b. That is, the linearly traveling slide shifter 18 is linearly reciprocated along the fixed rail 17 by the connecting rod 14 with rotating rollers fixed to the chinos 11a and 11b.

Habo sprocket wheel 10a and driven sprocket 1-
The wheels 10b have good spacing, and are provided with an angular swing rail 20 that is horizontally rotatably supported by a fulcrum 20a at the center thereof, and is guided by this angular swing rail 20 to travel diagonally. Diagonal travel slide shifter 21
is provided.

A roller moving groove is formed in the obliquely traveling slide shifter 21, and the roller 19 of the linearly traveling slide shifter 18 is engaged with this roller moving groove. Therefore, when the straight-travel sliding slide 18 reciprocates in a straight line in the manner described above, the oblique travel slide shifter 21 is guided by the angular swing rail 20 and reciprocates in a diagonal manner.

A hydraulic cylinder 23 is provided for horizontally reciprocating the angle swing rail 20 by a predetermined angle at a fulcrum 20a, and a first link 2 is attached to the tip of the screw 1-rod 24.
5, and a second link 26 is pivotally connected to the tip of the first link 25, and the tip of the second link 26 is pivotally connected to one end of the angle oscillation rule 20.

Therefore, by switching the direction of pressure oil supplied to and discharged from the hydraulic cylinder 23 using the electronic switching valve 27 in a manner described later, the angular swing rail 20 can be rotated only at a predetermined angle around the fulcrum 20a via the links 25 and 26. It is rotated horizontally. The first link 25 connected to the piston rod 24 of the hydraulic cylinder 23 is supported by a vacuum-sealed sliding bearing 28 at the portion where it passes through the vacuum drying chamber 9 .

A slide sick position detector 29 for controlling switching of the electromagnetic valve 27 of the hydraulic cylinder 23 is provided with vacuum sealing means. Slide chic position detector 29
A pair of contacts 31a, 31b and a pair of contact operating rods 32a
, 32b, and rollers 33a, 33b are provided at the tips of each contact operating rod 32a, 32b, and each contact operating rod 32a, 32b is biased away from the contacts 31a, 31b by a spring 34a, 134b. has been done.

Each contact operating rod 32a, 32b is connected to the spring 34a by the connecting rod 14.15 attached to the chino 11a111b.
, 34b toward the contacts 31a and 31b, and the contact 31a is moved toward the contacts 31a and 31b by the contact operating rods 32a and 32b.
, 31b are closed, the electromagnetic valve 27 is switched, and the direction in which pressure oil is supplied to the hydraulic cylinder 23 is switched.

Each connecting rod 14.15 is formed with a recess 14a, 15b, so that when the connecting rod 15 shown in FIGS. 4 and 5 is located at the drive sprocket wheel 10a, one of the contact operating rods 32b is moved against the spring 34b to close one contact 31b, while the other contact actuating rod 32a is not actuated due to the recess 15b and therefore the other contact 31a does not close. Further, when the connecting rod 14 comes to the drive sprocket wheel 10a, the other contact operating rod 32a of the contact operating rods is moved against the spring 34a to close the other contact 31a; does not operate because of the recess 14a, and therefore one contact 31b does not close.

In this way, when the connecting rod 14.15 comes to the drive sprocket wheel 10a, the contacts 31a and 31b close alternately and the solenoid valve 27 of the hydraulic cylinder 23 is switched, thereby causing the angular swing rail 20 to reciprocate by a predetermined angle. Rotate.

A base 35 is attached to the oblique traveling slide shifter 21 via an arm 22. Therefore, the angular swing rail 20 reciprocates by a predetermined angle in the above-described manner, and the oblique traveling slide shifter 21 reciprocates obliquely along the angular swing rail 20 in the above-described manner, so that the base 35 is moved to the first a−+ shown in the figure 1) −+
It will move in a distance of 04 d.

A flexible tube 36 for supplying raw materials is connected to the mouthpiece 35, and by feeding the raw material to the mouthpiece 35 through the flexible tube 36, the bell 1 to the conveyor 1
Raw materials are supplied as shown in FIG. 2 above. Therefore, at each side end of the belt conveyor 1, the mouthpiece 35 is returned by a distance b (b=
By reciprocating the angle swing rail 20 by an angle such that d) is equal to the width of the base 35, the belt conveyor 1
The raw material is supplied to the top with a uniform thickness.

An example of the nozzle 35 is shown in FIG. 7, and the nozzle 35 usually has a width a of 30 to 1, although it varies depending on the raw material to be supplied.
00Il111 A spacing of about 2 to 5M1 is used. For example, when using a base 35 with a width a of 60m,
A distance b (b
The angle swing rail 20 is caused to reciprocate by an angle such that =d) is 60 m.

8 to 10 show a second embodiment of the present invention. In the first embodiment, the angle swing rail 20 is equipped with a slide sick position detector 2 that controls a hydraulic cylinder 23 and a solenoid valve 27 of the hydraulic cylinder 23. In this embodiment, the angular swing rail 2° is reciprocated by a predetermined angle using a cam means.

As shown in FIG. 9, it has a pair of cams 50a, 50b whose cam surfaces are inclined in opposite directions, and these cams 50a, 50b are connected to springs 52a, 52b via spindles 51a, 51b. is urged upward in FIG. Spindle 51 of each cam 50a, 50b
A and 51b each have a roller 53a protruding forward.
153b is attached, and these rollers 53a1
53b, the connecting rods 14.15 attached to the chains 11a, 11b are engaged alternately when they come to the drive sprocket wheel 10a, and the cams 50a, 50b are connected to the spring 52a.
, 52b alternately.

One end of a spring case 55 rotatably supported at a fulcrum 54 is pivotally connected to one end of the angle swing rail 20 at a fulcrum 56, and the spring case 55 and the angle swing rail 2
A spring 57 is interposed between the 0 end and the 0 end. Further, a roller 58 is provided at one end of the angle swing rail 20, and the cams 50a and 50b are alternately pushed down in the above-mentioned manner and come into contact with the roller 58, and the roller 58 is alternately pushed in the direction of the arrow to release the spring 57. Due to the action and the relationship between the fulcrums 54 and 56, the angular swing rail 20 horizontally reciprocates until it comes into contact with a pair of stoppers 59a159b installed at a predetermined distance from the center line.

This embodiment is suitable for implementation when the swing angle of the angle swing rail 20 is small and the frequency of movement is relatively fast, for example when the width of the base 35 is small.

FIGS. 11 to 14 show a third embodiment in which the present invention is applied to a painting robot. In this embodiment, the painting robot moves vertically with respect to a painting surface (a stationary member) to paint.

The robot main body 63 has a rack 6 erected on a movable frame 61.
Binion 6 that meshes with guide rail 62 with 2a and transfers
4, this pinion 64 is rotationally driven by one output shaft of the double output shaft type reducer motor 5, and one output shaft of the double output shaft type reducer motor 5 is equipped with a reducer. A rotating shaft 65 is driven via the continuously variable transmission 6, and a pinion 64 is attached to the rotating shaft 65 so as to rotate integrally therewith.

Therefore, the robot main body 63 is moved up and down along the guide rail 62 by the dual output shaft type reducer motor 5.

The robot body 63 includes a paint tank 66, a paint supply hose 67 is connected to the paint tank 66 via a solenoid valve 68, and a spray gun 69 is attached to the tip of the paint supply hose 67. Further, an air hose 70 is connected to the spray gun 69, and this air hose 70 is connected to a compressor (not shown).

Further, a power line 71 for the dual output shaft type reducer motor 5 is provided.

The spray gun 69 is attached to a spray gun mounting arm 72, and the spray gun 69 is reciprocated along the angular swing rail 20 by a line groove similar to that in the first embodiment, but in this embodiment. If robot body 6
3 moves up and down along the guide rail 62 of the movable frame 61, the spray gun 69 also moves up and down with respect to the painting surface 6013.

Therefore, the spray gun 69 is in the 15th position for the painted surface 60.
It is moved in the process of a-→b'→C-→d' shown in the figure.

[Effect of the invention 1 As explained above, according to the present invention, when supplying raw material from the mouthpiece to a belt conveyor running at a predetermined speed to form a layer of raw material on the belt conveyor, a narrow mouthpiece is used as the mouthpiece. It is possible to form a layer of raw material with a uniform thickness over the entire width of the belt conveyor, and the paint is sprayed from the spray gun while moving the spray gun at a predetermined speed to paint the painted surface. In doing so,
It is possible to form a coating film with a uniform thickness on the painted surface, and it eliminates the problem of uneven thickness of the raw material layer or coating film when using a wide nozzle or spray gun, and the problem of uneven thickness of the raw material layer or coating film when using a wide nozzle or spray gun. It is possible to reliably solve the problems of poor raw material supply efficiency, poor coating efficiency, and zigzag-like uneven patterns when a narrow gun is used.

The above-described embodiments are applicable when raw materials are supplied in layers from the nozzle to a belt conveyor installed in a vacuum drying chamber for drying, and when the paint is injected from the spray gun while moving the spray gun along the painted surface. However, it goes without saying that the application of the thin film forming apparatus according to the present invention is not limited thereto.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams explaining the present invention in detail. Figure 1 is a diagram showing the locus of the nozzle, and Figure 2 is a diagram showing the supply state of the raw material fed to the belt conveyor by the nozzle. be. FIGS. 3 to 6 show a first embodiment of the present invention, which is implemented to supply raw materials to a belt conveyor from a mouthpiece,
3 is a plan view showing the relationship between the belt conveyor and the thin film forming apparatus, FIG. 4 is a plan view of the 'a film forming apparatus, FIG. 5 is a front view thereof, and FIG. 6 is a side view thereof. Figure 7 shows (a), (
b) shows an example of the cap, (a) is a cross-sectional view, and cap) is a 1l
It is a IIJWJ diagram. Figures 8 to 10 show a second embodiment of the present invention, in which Figure 8 is a front view of the *g forming device, Figure 9 is a side view of the same, and Figure 10 is a plan view of the angle swing rail. . 11 to 14 show a third embodiment of the present invention in which the present invention is applied to a painting robot. FIG. 11 is a front view of the painting robot, FIG. 12 is a side view of the same, and FIG. 13 is a painting robot. FIG. 14 is a plan view showing a guide rail of a mechanism for moving the painting robot main body up and down. FIG. 15 is an explanatory diagram showing the locus of the spray gun in the case of the third embodiment. 1... Belt conveyor 2... N film forming bag
5...Double output shaft type reducer motor 10a, 10b.
... Subrocket boiler 11a111b... Die 14... Connecting rod with rotating roller 15...
Position detection connecting rod 17...Fixed rail 18...
Straight running slide shifter 20... Angle taking rail 21... Diagonal running slide shifter 23... Hydraulic cylinder 27... Solenoid valve 29... Slide shifter position detector 35... Base 50a, 50
b...Cam 54...Spring case 57...
Spring 59a, 59b...stopper 60...
Painting surface 61... Moving stand 62... Guide rail 63... Painting robot body 64... Binion 69... Spray gun Figure 6 Figure 7 (A) (B) 311
0 12th prisoner 130th 15th G room 14i

Claims (1)

[Claims] The raw material can be ejected from the nozzle onto a belt conveyor running at a predetermined speed to form a layer of raw material with a uniform thickness on the conveyor belt, or the spray gun can be ejected from a spray gun while moving at a predetermined speed along the painted surface. In a thin film forming device for spraying paint to form a coating film of uniform thickness on a painted surface, the thin film forming device has a predetermined length and is rotatable at the center. a supported angular swing rail;
a nozzle or spray gun that reciprocates along the angular swing rail; a means for reciprocating the nozzle or spray gun along the angular swing rail; and a base or spray gun that is positioned at each end of the angular swing rail. 1. A thin film forming apparatus comprising means for reciprocating an angle swing rail by a predetermined angle from a center line.