JPH02220409A - Formation of coated film on capless electronic part and device thereof - Google Patents

Abstract

PURPOSE:To obviate the necessity of screening operation and to reduce a cost by carrying out coating to wrap up an electronic part using a pair of coating rollers, by drying a coat consisting of paint or ink while transferring the electronic part which is taped, and by separating a bonding tape after drying. CONSTITUTION:A resistance element R inside a parts feeder 1 is supplied to a taping device 3 through a chute 2, and taped to cover an electrode section of both sides with a bonding tape T. Then, contact bonding and coating are carried out to wrap up an intermediate area of the taped resistance element by an outer peripheral coating section 36 of coating rollers 32, 33 whereon a paint 44 is applied by a transcription roller 43 with a coating device 4. Drying is carried out by a drying device 5, the bonding tape T is separated by a tape stripping device 6, and a resistance element R after coat formation is contained in a receiving box 7. Thereby, it is possible to eliminate the necessity of screening operation and to reduce the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a coating film forming method and coating film forming apparatus for capless type electronic components constituting so-called leadless fixed resistors, capacitors, etc.

BACKGROUND OF THE INVENTION Recently, a system in which a so-called leadless type fixed resistor is used and is automatically attached to a board has become popular and widely used. A capless type fixed resistor is available in which electrodes on both sides of the element are formed by silver coating or silver plating. In any type of fixed resistor, it is necessary to form a coating film between the electrodes on both sides to protect the carbon film in the middle of the element. Hereinafter, a conventional coating film forming method and apparatus for forming a coating film on a resistance element of a capless type fixed resistor will be described with reference to the drawings.

7A to 7C show a conventional coating device, FIG. 7A is a partial plan view, FIG. 7B is a sectional view taken along arrows ■b-■b of FIG. 7A, and FIG. 7C is a FIG. 7 is a sectional view taken along the line ■C-■C in FIG. 7A. As shown in FIGS. 7A to 7C, the resistance element R has electrodes r on both sides.
1 is thinly formed by silver painting or silver plating, and a carbon film (not shown) having a spiral groove is exposed on the outer periphery of the intermediate portion between the electrodes 11. The conveyor belt 101 is made of flexible metal and is formed in an endless shape, and the conveyor holes 102 for the resistive elements R are arranged in rows on the conveyor belt 101.
This conveyor belt) 101 is driven by a reversing drive device (not shown). A guide rail 103 is provided below the conveyor belt 101 on the conveyor side. This guide rail 10
3 is provided with guide portions 104 for guiding the movement of the outer ends of the electrodes r] on both sides of the resistance element R positioned in the conveyance hole 102 of the conveyor belt 101;
A groove 105 is formed between each of the grooves 105 and 4 for escape of the paint application area. When the conveyance side of the conveyor belt 101 runs, its longitudinal edges on both sides are guided by guide rollers 106 rotatably supported by the rails 103. A coating roller 107 is provided above the conveyor belt 101 while it is running and can come into contact with the intermediate portion of the resistance element R.
is rotated by a drive device (not shown).

A plate 108 for preventing the resistance element R from jumping is provided below the coating roller 107. A paint tank 109 is provided adjacent to the paint roller 107. paint tank 10
An adjustment member 110 and a transfer roller 111 are provided in close proximity to each other in the interior of the transfer roller 9 . The transfer roller 111 is rotated by a drive device (not shown), and the paint 112 on the adjustment member 110 is transferred to the coating roller 107. The distance of the tip of the adjusting member 110 from the transfer roller 111 is finely adjusted by operating the fine adjustment knob 113, and the amount of paint 112 adhering to the transfer roller 111 is adjusted.

Then, the conveyor belt 101 is run by the reversing drive device, and as the conveyor belt 101 runs, the conveyor hole 1
The electrode 11 part of the resistance element R inserted in the rail 1
It is conveyed while being rolled on the guide section 104 of 03. The resistance element R transported in this manner is rotated by the coating roller 107. Since the paint 112 is applied to the coating roller 107 by the rotation of the transfer roller 111, the paint 112 can be applied onto the carbon film in the intermediate portion between the electrodes 11 when the resistance element R is rotated. The coated resistance element R is run through a drying device (not shown) to dry the paint 112 and form a coating film.

Problems to be Solved by the Invention However, in the prior art as described above, the electrode 71 portion of the resistive element R being conveyed is pressed onto the guide portion 104 of the rail 103 by the coating roller 107 and painted while rotating. Silver-painted or silver-plated electrode r1
There is a risk of damage such as scratches or peeling due to strong friction. In addition, not only during this coating, but also during transportation, the electrode 11 of the resistive element R moves on the guide portion 104 of the rail 103, and this transportation distance is considerably long because it includes a drying device and a color coating device. There is a risk that the electrode r1 may be damaged by scratches, peeling, etc. due to strong friction as described above.

Furthermore, if the electrode rl is damaged, it must be sorted out and removed from the manufacturing process, which not only increases the number of manufacturing steps but also increases the cost of the manufacturing equipment, leading to an increase in the cost of fixed resistors and the like. Furthermore, if the paint adheres to the conveyor belt 101 or the rail 103 during painting, cleaning work is required.Moreover, if the resistance element R falls between the conveyor belt 101 and the rail 103, it will cause conveyance trouble, so it is necessary to remove it. It requires work and is troublesome to maintain and manage.

The present invention solves the problems of the prior art as described above, and it is possible to prevent the silver casing or the electrode formed by silver plating from being damaged not only during painting but also during transportation. Therefore, it is possible to obtain the reliability of electronic components, eliminate the need for sorting work, improve the yield, reduce the cost of electronic components, and further improve the structure for transportation. A capless type coating film for electronic components that is easy to apply, can be painted without the need for rails to guide the transportation of electronic components, and can simplify maintenance and management. The object of the present invention is to provide a forming method and an apparatus therefor.

Means for Solving the Problems In order to achieve the above object, the coating film forming method of the present invention uses a capless type electronic component having electrodes formed on both sides by painting or plating, whose axes are substantially parallel, and The electronic components are transported at a nearly constant pitch, and the electrodes on both sides are sequentially taped with adhesive tape so as to cover them. After this taping, the middle part between the electrodes of the non-rotating electronic component being transported is coated with a pair of coating rollers. Paint or ink is applied in a wrapping manner, and the paint film made of paint or ink is dried while the painted electronic components are transported in a taped state. After drying, the adhesive tape is separated from the electronic components. This is what I did.

In addition, in order to achieve the above object, the coating film forming apparatus of the present invention uses a capless type electronic component in which electrodes are formed on both sides by painting or plating so that the axes of the electronic component are approximately parallel and the pitch is approximately constant. A pair of taping devices that sequentially tape an electronic component with adhesive tape so as to cover the electrodes on both sides of an electronic component transported by this transportation device, and a painted part whose outer periphery is made of a soft elastic material. A coating device that has coating rollers and applies paint or ink to cover from both sides the intermediate portion between the electrodes of a non-rotating electronic component that is being transported after being taped by the coating portion of these coating rollers. , which is equipped with a drying device that transports painted electronic components in a taped state through a drying oven to dry a film made of paint or ink, and a separating tape device that separates the adhesive tape from the electronic components after drying. It is.

Effect: The present invention uses the above-mentioned technical means to protect the electrodes by covering and taping the electrode parts formed by painting or plating on both sides of a capless type electronic component with adhesive tape. transported in condition,
Paint or ink is applied to the electronic component in a non-rotating state, dried, and then the adhesive tape is separated from the electrode of the electronic component, which prevents the electrode from being damaged not only during painting but also during transportation. It can be prevented.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

In this embodiment, a case will be described in which a coating film is formed on a resistance element of a capless type fixed resistor. As described above, the resistive element R has electrodes r1 on both sides that are thinly formed by silver coating or silver plating, and a carbon film (not shown) having a spiral groove is exposed on the outer periphery of the intermediate part between the electrodes j1. .

FIG. 1 is an overall schematic explanatory diagram showing a coating film forming apparatus in one implementation of the present invention.

The resistive element R in the parts feeder 1 is supplied to the taping device 3 through the chute 2, taped with adhesive tape T so as to cover one part of the electrode j on both sides, then painted in the coating device 4, and then transferred to the drying device 5. Then, the adhesive tape T is separated by a tape separating device 6, and the resistive element R with the coated film formed is placed in a receiving box 7.

FIG. 2A is a partially cutaway side view of the taping device 3, FIG. 2B is a front view thereof, and FIG. 2C is a perspective view of the tip of the tape mounting member.

As shown in FIG. 2 ASB, the taping wheel 11 is rotatably supported by a rotating shaft 12 on a machine frame (not shown), and is intermittently rotated by a driving device such as a stepping motor (not shown).

The taping wheel 11 is the electrode 11 in the resistance element R.
A large number of storage grooves 13 are formed at approximately equal intervals on the outer periphery, and the intermediate portion of the resistance element R is stored in each storage groove 13, and the axis of each resistance element R is are arranged and transported so that they are parallel to each other. Each storage groove 13
One end of the suction hole 14 formed radially is communicated with the
The central portion of the taping wheel 11 in each suction hole 14 is oriented in the axial direction and in the same direction, and is opened laterally. One end of a chute 2 is disposed on the upper side of the taping wheel 11 so as to communicate with a storage groove 13 that rotates sequentially, and the other end of the chute 2 is connected to a parts feeder l (
(see Figure 1). Therefore, as the taping wheel 11 rotates intermittently, the resistance elements R in the parts feeder 1 are sequentially supplied from the chute 2 to the storage groove 13. A stopper member 15 is provided on the upper side of the taping wheel 11 on the side opposite to the open side of the chute 2, and this stopper member 15 stops the receiving of the resistance element R supplied from the chute 2 to the storage groove 13. , it is prevented from falling out of the storage groove 13. A sensor 16 is provided above the taping wheel 11 to check whether the resistive element R is supplied from the chute 2 to the storage groove 13. A suction cup 17 is provided on the side surface of the taping wheel 11 on the lateral open side of the suction hole 14 so as to cover each suction hole 11 . An arc-shaped suction groove 18 is formed on the inside of the suction cup 17, and this suction groove 18 is located at the supply position X of the resistance element R to the storage groove 13 by the chute 2.
The suction holes 14 are set in a range such that the suction holes 14 are sequentially communicated between the taping position Y and the taping position Y where the taping wheel 11 is rotated approximately 90 degrees. A nozzle 19 that communicates with the suction groove 18 is attached to the suction cup 17, and the nozzle 19 is connected to a suction device (not shown) such as a vacuum pump through a pipe 20. Tape guides 21 are provided on both sides of the taping wheel 11, and the adhesive tape T fed out from the tape wheel (not shown) is guided to the taping position Y.

A pair of tape attachment members 2 are installed on both sides of the taping position Y.
2, and a mounting hole 23 is recessed at the tip of each tape mounting member 22, especially as shown in FIG. 2 (C1).
A groove-like mounting groove 24 communicating with the mounting hole 23 is formed. Each tape attachment member 22 is supported by a bearing 25 attached to the machine frame so as to be movable in the horizontal direction. Each tape attachment member 22 is moved forward or backward by a drive device such as a cam or cylinder attachment when the taping wheel 11 is stopped. Then, when moving forward, the mounting tape T is inserted through the mounting hole 23 to the electrodes r1 on both sides of the resistance element R in the storage groove 13.
At this time, the mounting groove 24 allows two adhesive tapes T to be overlapped at the center in the longitudinal direction and released. A pair of crimping wheels 26, 27 are provided below the taping wheel 11, and each crimping wheel 26, 27 is rotatably supported on the machine frame by a rotating shaft 28, 29. A large number of crimping grooves 30, 31 are formed at approximately equal intervals on the outer periphery of each crimping wheel 26,27. Each crimping wheel 26, 27 is rotated intermittently by a driving device (not shown) such as a stepping motor so that the timing coincides with the conveyance of the resistance element R of the taping wheel 11. Therefore, the adhesive tape T is secondarily crimped to the electrode f1 of the resistance element R by the crimping groove 30.
Can be stacked and flattened for secondary crimping.

FIG. 3A is a plan view of the coating device 4, and FIG. 3B is its m
It is a sectional view taken along the line b-mb.

A pair of painting rollers 32.33 as shown in Figure 3 ASB
are arranged adjacent to each other, each rotatably supported on the machine frame by rotating shafts 34 and 35, and rotated in opposite directions by a drive device (not shown) such as a motor. The coating portion 36 on the outer periphery of each coating roller 32, 33 is formed of a soft material such as sponge. A paint supply 37.38 is provided behind each coating roller 32.33. In each paint supply section 37, 38, a paint tank 39 is fixed by a screw 41 to a shaft 40 fixed to the machine frame. In each paint tank 39, an adjustment member 42 and a transfer roller 43 are provided adjacent to each other. The transfer roller 43 is driven by a drive device such as a motor (
paint 44 on the adjustment member 42.
is transferred to the coating portion 36 of the coating rollers 32, 33. The distance between the tip of the adjustment member 42 and the transfer roller 43 is finely adjusted by operating the fine adjustment knob 45.
The amount of coating material 44 applied to the surface is adjusted. Then, the coating roller 32 is coated with the paint 44 by the transfer roller 43.
．． The outer peripheral coating portion 33 can be crimped so as to wrap around the intermediate portion of the resistive element R taped as described above.

Fig. 4A is a partially cutaway front view of the drying device 5, Fig. 4B
is a sectional view taken along the line fVb-IVb.

As shown in FIGS. 4A and 4B, a drying chamber 46 is attached to a support member 47. The drying chamber 46 has a main body 48 with a heat insulating structure.
and a door 49. An inlet 50 is provided on one side of the drying chamber 46 for introducing the resistive element R coated as described above into the interior.
is formed, and an outlet 51 of the resistive element R after drying is formed on the other side. Inside the drying chamber 46, there is an entrance 50 and an exit 5.
Pulleys 52a and 52+ are rotatably supported near pulleys 1, and a plurality of pulleys 52b to 52h are rotatably supported above and below between these pulleys 52a and 521 in a staggered arrangement. The resistive element R after coating is guided into the drying chamber 46 from the inlet 50 in a taped state, guided in a zigzag manner by pulleys 52a to 52i in sequence, and discharged to the outside of the drying chamber 46 from the outlet 51. Pulley 52 c located at the bottom
152e) A small-diameter auxiliary pulley 53 is rotatably supported adjacent to the 52FJ, and the taped resistance element R is held so as not to separate from the pulleys 52c, 52e, and 52g. A plurality of small rollers 54 are horizontally arranged above and below in the vicinity of the exit 51 outside the drying chamber, and a belt 55 is hung between the small rollers 54 in the horizontal direction, and as the belt 55 runs, the resistance element R in a taped state is
etc., and then sends it out. Further, any plurality of pulleys 52a to 52i are rotated by a drive device such as a motor (not shown) in a direction to convey the taped resistance element R from the entrance 50 to the exit 51. Heaters 56 are provided horizontally at the top and bottom of the drying chamber 46, and a plurality of fans 57 for air circulation are provided at the top and bottom of the drying chamber 46. These heater 56 and fan 57 are configured to be controlled by the temperature inside the drying chamber 46 being detected by a temperature sensor 58.

FIG. 5A is a plan view of the tape separating device 6, and FIG. 5B is a partially cutaway front view thereof.

As shown in FIGS. 5A and 5B, a rail 59 that guides the resistive element R in a taped state after drying to a horizontally conveyed state is attached to the substrate 6.
0 is supported by a support 61. A pressing roller 62 of the resistance element R is provided above the terminal end of the rail 59.

The pressing roller 62 is rotatably supported by a bifurcated support member 64 protruding from a support 63 on the substrate 60, and is rotated by a drive device (not shown) such as a motor. rail 5
Tape release wheels 65 are provided on both sides of the terminal end of the tape release wheel 9 , and each release tape wheel 65 is rotatably supported by an arm member 66 projecting from the support column 63 .

Adhesive tape winding wheels 67 are provided on both sides of the rail 59 at positions upstream of the separating tape wheels 65 in the conveyance direction of the taped resistance element R, and each adhesive tape winding wheel 67 rotates around the substrate 60. It is rotatably supported by a shaft 68 and rotated in the direction of the arrow by a drive device (not shown) such as a motor. A receiving box 7 is supported on a substrate 60 below the terminal end of the rail 59.

Next, the coating film forming method according to the above embodiment will be explained.

The resistance elements R in the parts feeder 1 shown in FIG. 1 are fed into the chute 2 one after another, and are sequentially supplied at the X position to the storage groove 13 of the taping wheel 11 which is rotating intermittently as shown in FIGS. 2A and B. be done. The resistance element R housed in the housing groove 13 is driven by a suction device such as a vacuum pump into the pipe 20. Nozzle 19, suction groove 18 and suction hole 14
It is held in the storage groove 13 in an adsorbed state through the holder. When the resistive element R in the adsorbed and held state reaches the taping position Y due to the intermittent rotation of the taping wheel 11, the tape mounting members 22 on both sides are moved forward, and the adhesive tape T guided by the tape guide 21 is pressed and attached to the mounting hole 23. This causes the adhesive tape T to cover the electrode rl of the resistive element R, and at the same time, the two adhesive tapes T are stacked along the center portion in the longitudinal direction at a position 100 degrees opposite to the electrode r1 by the mounting groove 24. After that, the tape mounting member 22 is moved back. When the taping wheel 11 further rotates intermittently, the resistance element R that has passed through the taping position Y is free from the storage groove 13 because the suction hole 14 communicating with the storage groove 13 is separated from the suction groove 18 of the suction cup 17. can leave.

Therefore, by repeating the above operation, the resistance element R in the temporarily taped state can be transported downward. The resistance element R in the temporarily taped state can be reliably taped while passing through the crimping wheels 26 and 27. That is, by crimping the electrode portion r1 of the resistance element R so as to wrap it around the outer surface of the adhesive tape T using the crimping grooves 30 and 31 of the crimping wheels 26 and 27, and by crimping the overlapped portion of the adhesive tape T using the outer peripheral surface. As shown in FIG. 6, it is possible to obtain a reliable adhesive state between the adhesive tape T and the electrode rt, and also to ensure that the adhesive surfaces of two layers of adhesive tape T between the resistance elements R are adhered to each other. This makes it possible to prevent the resistance element R from coming off the adhesive tape T during subsequent transportation. After passing through the crimping wheels 26, 27, the taped resistance element R is reversed from the downward direction to the upward direction and conveyed (see FIG. 1). During this conveyance, as shown in FIG. 3 ASB, the outer periphery coating portion 36 of the pair of rotating coating rollers 32 and 33 is elastically deformed so as to wrap around the outer periphery of the intermediate portion of the non-rotating resistance element R. Since the paint 44 is transferred to the outer periphery coating portion 36 by the transfer roller 43, the outer periphery of the intermediate portion of the resistance element R can be coated. After coating, the taped resistance element R is guided by a pulley 69 (see FIG. 1) to change its transport direction to the horizontal direction, and is led into the drying chamber 46 through the entrance 50 as shown in FIGS. 4A and 4B.

As mentioned above, since the electrode f1 is formed by silver aue or plating, it is thin, and the coating film can also be thin, so even if the resistive element R after coating is transported without rotating, the coating will remain intact. There is no risk of it dripping. The taped resistance element R is conveyed vertically in a zigzag manner inside the drying chamber 46 by pulleys 152a to 521, and is then conveyed to the outlet 51.
Excretes more outward. During the zigzag conveyance within this drying chamber 46, the coating film applied to the resistance element R is dried. The resistance element R in the taped state after drying is shown in Figure 5AS.
As shown in B, the resistive element R is conveyed on the rail 59 and is pressed down by a pressing roller 62 at the terminal end of the rail 59.

On the other hand, the end of the adhesive tape T is hung on a release tape wheel 65 to lock the adhesive tape on a winding wheel 67. Then, by rotating the adhesive tape winding rewheel 67, the adhesive tape T can be separated from the electrode 11 portion of the resistance element R via the separating tape wheel 65 and wound up. The resistance element R from which the adhesive tape T has been removed is placed in the receiving box 7.
to fall.

The adhesive tape T is coated as described above, and after drying, the resistance element R is
Since the electrode is removed from the electrode 11 portion, it is necessary to use a material that does not leave any adhesive on the electrode 71 portion after removal.

Note that the tape mounting members 22 may be provided at a plurality of locations so that the adhesive tape T is crimped onto the electrode 11 portion of the resistance element R at a plurality of locations. Furthermore, the coating rollers 32, 33, etc. may be provided at multiple locations.

Furthermore, the method of transferring the image to the coating rollers 32 and 33 is not limited to the above embodiment, and it is also possible to apply ink. Alternatively, the resistor element R in the taped state may be coated while being transported downward. Also,
The drying device 5 may be configured to transport the taped resistance element R in a zigzag pattern in the horizontal direction instead of in the vertical direction in a zigzag pattern as in the above embodiment. In this way, if the taped resistance element R is transported in a zigzag pattern, a long transport distance can be obtained even if the floor space is small (but if the floor space is large enough, it is possible to transport it in a straight line). If the drying device is conveyed in a straight line in this way, the structure of the drying device can be simplified.In addition, the present invention can be modified in various ways without departing from its basic technical idea. Can be done.

Effects of the Invention As described above, according to the present invention, the electrode parts formed by painting or plating on both sides of a capless type electronic component are taped so as to be covered with adhesive tape to protect the electrodes. transported in a protected manner,
Paint or ink is applied to the resistive element in a non-rotating state, dried, and then the adhesive tape is separated from the electrodes of the electronic components, which prevents damage to the electrodes not only during painting but also during transportation. It can be prevented. therefore,
It is possible to obtain reliability of electronic components, eliminate the need for sorting work, improve yield, and reduce costs of electronic components. Furthermore, the configuration for transportation is simple, and painting can be performed without requiring a rail or the like to guide the transportation of electronic components during painting, and maintenance and management can be simplified.

[Brief explanation of the drawing]

1 to 5 show a coating film forming apparatus according to an embodiment of the present invention, FIG. 1 is an overall schematic explanatory view, FIG. 2A is a partially cutaway side view of the taping apparatus, and FIG. 2B is Figure 2C is a perspective view of the tip of the tape attachment member; Figure 3C is a front view thereof;
Figure A is a plan view of the coating equipment, Figure 3B is a sectional view taken along the mb-mb arrow, Figure 4A is a partially cutaway front view of the drying equipment, and Figure 4A is a partially cutaway front view of the drying equipment.
Figure B is a sectional view taken along the 1Vb-IVb arrow, Figure 5A is a plan view of the tape separating device, Figure 5B is a partially cutaway front view thereof, Figure 6 is a perspective view of the resistive element taped; 7A to 7C show a conventional coating device, FIG. 7A is a partial plan view, FIG. 7B is a sectional view taken along arrows ■b-■b of FIG. 7A, and FIG. 7C is a FIG. 7 is a sectional view taken along the line ■C-■C in FIG. 7A. R...resistance element, r...electrode, T...adhesive tape, 1...parts feeder, 2...chute, 3...
- Taping device, 4... Painting device, 5... Drying device, 6... Tape release device, 7... Receiving box, 11...
Taping wheel, 13... Storage groove, 14... Adsorption hole, 21... Tape guide, 22... Tape mounting member, 26.27... Crimping wheel, 30.31...
・Crimping groove, 32.33...Painting roller, 36...Outer periphery coating section, 37.38...Paint supply section, 46...Drying chamber, 52a-52i...Pulley, 56... Heater, 59...Rail, 62...Press roller, 65.
...Release tape wheel, 67...Adhesive tape winding wheel. Mutoko

Claims (2)

[Claims] (1) Capless type electronic components with electrodes formed on both sides by painting or plating are transported so that their axes are almost parallel and at a constant pitch, and then glued to cover the electrodes on both sides one after another. After taping, paint or ink is applied so that the middle part between the electrodes of the non-rotating electronic component being transported is wrapped around it by a pair of paint rollers, and the electronic component after this coating is taped. Paint while being transported in condition,
Alternatively, a method for forming a coating film for a capless type electronic component, which comprises drying a coating film made of ink and separating the adhesive tape from the electronic component after drying. (2) A transport device that transports capless electronic components with electrodes formed by painting or plating on both sides so that their axes are almost parallel and at a nearly constant pitch, and the devices are transported by this transport device. It has a taping device that sequentially tapes with adhesive tape so as to cover the electrodes on both sides of an electronic component, and a pair of painting rollers whose outer periphery is provided with a painted part made of a soft elastic material. After taping, a coating device applies paint or ink so as to cover the intermediate portion between the electrodes of the non-rotating electronic component being transported from both sides;
A capless system equipped with a drying device that transports painted electronic components in a taped state through a drying oven to dry the coating film made of paint or ink, and a separating tape device that separates the adhesive tape from the electronic components after drying. Type of coating film forming equipment for electronic parts.