JP2009113033A - Apparatus for forming circuit on resin molded article having three-dimensional shape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for forming a circuit, which can apply a conductive material uniformly to a resin molded article having a three-dimensional shape, and can form a circuit of high quality from a liquid of the conductive material without distorting, damaging or breaking crossing lines. <P>SOLUTION: The apparatus comprises a discharge portion provided with at least one nozzle for discharging the liquid of the conductive material toward the resin molded article having the three-dimensional shape, a movable body for gripping the discharge portion and moving the discharge portion three-dimensionally along the surface of the resin molded article, and a supply means for supplying the conductive material to the nozzle. Furthermore, the apparatus comprises an adjusting means for adjusting the position of the movable body three-dimensionally to hold the nozzle at a reference distance from the surface of the resin molded article without contact with the surface. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a circuit forming apparatus for forming a circuit on a three-dimensionally shaped resin molded product. Furthermore, the present invention relates to a circuit forming apparatus for forming a circuit having a desired circuit width and thickness by applying a liquid conductive material to the surface of a three-dimensionally shaped resin molded product having a dimensional error.

When manufacturing a three-dimensional circuit body having a relatively simple shape, first, a liquid conductive material is screen-printed on a flat substrate, and then bent at room temperature or by heating to form a liquid conductive material. Heat drying.
As another method, a circuit is formed on a thermoplastic resin film by screen printing, this is formed into a desired shape by vacuum molding, and then a three-dimensional circuit body is manufactured by insert molding or outsert by injection molding. Has been taken.

  By the way, in recent years, glass materials for in-vehicle use have been diversified, and some of them are equipped with not only inorganic glass but also resin glass made of polycarbonate. In-vehicle glass is provided with a circuit such as a heat wire for defrosting or an antenna wire depending on the part. When a circuit is provided for inorganic glass, a liquid conductive material is applied to the surface of inorganic glass in a flat state by screen printing, bending is performed by applying heat, and the liquid conductive material is heated and dried at about 600 ° C. The circuit is formed.

  On the other hand, in the case of resin glass obtained by injection molding, since it is formed in a curved shape from the beginning, it cannot be handled by screen printing. For this reason, the film on which the above-described circuit is formed is formed by insert or outsert (for example, refer to Patent Document 1 and Patent Document 2), or a liquid conductive material while the tip of the nozzle freely expands and contracts and contacts the molded product. There have been proposals such as forming a circuit directly on a three-dimensionally shaped resin molded product with a dispenser that discharges a material (for example, Patent Document 3).

Japanese Patent Application Laid-Open No. 07-241872 JP 2000-289458 A JP 2005-81337 A

However, the methods described so far have the following problems. In other words, the method of bending after screen printing, or the method of inserting or outsert molding a film formed with a circuit, causes a change in shape due to the elongation of the circuit, and is likely to cause a disconnection or a change in resistance value. There are restrictions.
Further, as in the apparatus disclosed in Patent Document 3 above, a liquid conductive material having a three-dimensional curved surface can be obtained by an on-demand method using a dispenser having a contact and having a nozzle tip having a telescopic structure. However, when the circuit lines intersect, the distance between the dispenser and the three-dimensional aspect is adjusted by the contactor, so the circuit line (line) drawn first is the contactor. Therefore, it is difficult to form a circuit as designed and there is a risk of disconnection.

  The present invention has been made in view of such problems, and the object of the present invention is to form a circuit with a high-quality liquid conductive material on a three-dimensional resin molded product without deformation, scratching, or disconnection of cross lines. Provided is a circuit forming apparatus that can be used. Furthermore, even for three-dimensional resin molded products with dimensional variations (perpendicular to the surface), circuits can be formed with high-quality liquid conductive material without deformation, damage, or disconnection of cross lines. Provided is a circuit forming apparatus that can be used.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have recognized the three-dimensional resin molded product in a non-contact manner when discharging the conductive material onto the surface of the three-dimensional resin molded product, and the discharge part is somewhat It has been found that this can be achieved by discharging a non-contact liquid conductive material at a distance to form a circuit.

That is, the present invention is as follows.
(1) A discharge unit including at least one nozzle that discharges a liquid conductive material to a three-dimensionally shaped resin molded product;
A movable body that grips the discharge part and moves the discharge part three-dimensionally along the surface of the three-dimensionally shaped resin molded product;
A circuit forming apparatus having supply means for supplying the conductive material to the nozzle,
The circuit forming apparatus, further comprising: an adjusting unit that adjusts the position of the movable body in a three-dimensional manner so that the nozzle is held at a reference distance without contacting the surface of the three-dimensionally shaped resin molded product.

(2) The adjusting means recognizes the shape of the three-dimensional shape resin molded product by any one of an infrared sensor, an ultrasonic sensor, or a program in which the three-dimensional shape resin molded product is previously measured and converted into data, The circuit forming apparatus according to (1), wherein the position of the moving body is adjusted.
(3) The circuit forming apparatus according to (1) or (2), wherein the moving body is a multi-axis robot.
(4) The circuit forming apparatus according to any one of (1) to (3), wherein the ejection unit is a continuous type inkjet gun.
(5) The circuit forming apparatus according to any one of (1) to (3), wherein the discharge unit is a non-contact dispenser gun.
(6) The reference distance is an interval of 0.1 to 30 mm, a dimensional error, and an actual distance between the discharge nozzle tip and the surface of the three-dimensional resin molded product varies within 0.1 to 30 mm. The circuit forming apparatus according to any one of (1) to (5), wherein line drawing is possible.

  According to the circuit forming apparatus of the present invention, a conductive material can be uniformly applied to a three-dimensional resin molded product in a non-contact manner, and the circuit is formed of a high-quality liquid conductive material without deformation, damage, or disconnection of cross lines. Can be formed. In addition, when a circuit is provided on a three-dimensionally shaped resin molded product having a dimensional error, a conductive material can be uniformly applied in a non-contact manner, resulting in dimensional variation (particularly, dimensional variation perpendicular to the surface of the molded product). It is possible to stably form a circuit with a liquid conductive material with high quality without causing deformation, scratching or disconnection of the crossing line even on a curved resin molded product.

When a continuous ink jet gun is used, a droplet discharged from a nozzle can be collected and reused, so that a circuit can be formed without wasting an expensive conductive material. In addition, if a nozzle having a small hole diameter is used, it can be applied to fine wiring.
When a non-contact dispenser gun is used, it is a very simple mechanism, so maintenance is easy, the viscosity range of usable materials can be widened, a relatively inexpensive conductive material can be selected, and a low-cost three-dimensional circuit The body can be formed.

Hereinafter, the present invention will be described in detail.
A circuit forming apparatus according to the present invention includes a discharge unit including at least one nozzle that discharges a liquid conductive material to a three-dimensional resin molded product,
A movable body that grips the discharge part and moves the discharge part three-dimensionally along the surface of the three-dimensionally shaped resin molded product;
A circuit forming apparatus having supply means for supplying the conductive material to the nozzle,
The apparatus further includes an adjusting unit that adjusts the position of the movable body in a three-dimensional manner so that the nozzle is held at a reference distance without contacting the surface of the three-dimensionally shaped resin molded product.

As an adjustment means to adjust the position of the moving body in three dimensions according to the shape of the three-dimensional resin molded product, the shape of the three-dimensional resin molded product is recognized in a non-contact manner when discharging a liquid conductive material. Alternatively, a dedicated machine that moves in accordance with the shape of the three-dimensional shape resin molded product, for example, a sensor that recognizes the shape of the three-dimensional shape resin molded product such as an infrared sensor or an ultrasonic sensor may be used. In consideration of versatility, it is also preferable in the present invention to be means (for example, NC “numeric control”) in which the shape of a three-dimensionally shaped resin molded product is measured in advance and the motion can be programmed by teaching. In any case, when the circuit is formed, the position of the discharge part is adjusted so that the nozzle of the discharge part discharges the liquid conductive material in a non-contact manner with a certain distance from the three-dimensional resin molded product. It is preferable. Thereby, even if the circuit which cross | intersects is formed, a deformation | transformation, a damage | wound, disconnection, etc. of a circuit can be avoided.
As the moving body having the adjusting means, a multi-axis robot is preferably used.

  The discharge unit used in the present invention may be any device that can discharge a liquid conductive material without forming the nozzle tip in contact with the surface of the three-dimensionally shaped resin molded product to form a circuit. Ink jet guns and non-contact dispensers are preferred.

  When a continuous ink jet gun is used, a droplet discharged from a nozzle can be collected and reused, so that a circuit can be formed without wasting an expensive conductive material. Further, if a nozzle having a smaller hole diameter is used, it can be applied to fine wiring. Furthermore, if there is a liquid conductive material heating device, it is possible to use one having a relatively high viscosity at room temperature.

  Continuous ink jet guns form a circuit by spraying the liquid conductive material continuously extruded by the supply means into fine droplets and spraying directly onto the surface of the three-dimensional resin product from one or more nozzles. To do. If a continuous ink jet printing technique is employed, an ink jet gun used for forming a conductive circuit can be used.

  The amount of the liquid conductive material discharged from the nozzle of the ink jet gun is controlled by a pump which is a conductive material supply means. The coating amount is controlled by controlling charging of the droplets. Specifically, charging and deflecting droplets used for printing and collecting droplets not used for printing, or conversely charging and deflecting droplets not used for printing and dropping droplets used for printing The amount of coating is controlled by collecting.

When a non-contact dispenser gun is used, it is a very simple mechanism, so maintenance is easy, the viscosity range of usable materials can be widened, a relatively inexpensive conductive material can be selected, and a low-cost three-dimensional circuit The body can be formed.
A non-contact dispenser gun has a desired amount of liquid conductive material supplied to a discharge part by a supply means such as a pump when required by a supply means, and a rod hits a valve seat inside the nozzle of the discharge part, The conductive material is atomized, and the finely divided liquid conductive material is sprayed directly from one or more nozzles onto the surface of the three-dimensional resin-formed product by opening and closing the electromagnetic valve to form a circuit. A normal dispenser gun used for forming a conductive circuit can be used except that a certain distance is provided and a non-contact type is used.

  The amount of liquid conductive material discharged from the nozzle of the non-contact dispenser gun is controlled by the opening / closing speed of the solenoid valve, the supply pressure of a pump or the like that supplies the conductive material (hereinafter also referred to as “syringe pressure”), the nozzle diameter , Depending on the stroke distance of the rod.

  As the liquid conductive material used in the present invention, a normal liquid conductive material used for forming a circuit on a resin can be used. For example, a conductive paste prepared by dispersing a conductive material such as copper, silver, ITO (indium tin oxide), or ZnO in a solvent or an insulating resin as a binder resin can be used.

Solvents used in the conductive paste include ketone solvents such as acetone, methyl ethyl ketone, γ-butyrolactone, and cyclohexanone; polar solvents such as dimethylacetamide, N-methylpyrrolidone, and propylene glycol monoethyl ether; hydrocarbons such as toluene and tetradecane 1 type selected from a system solvent etc., or the combination of 2 or more types is mentioned.
Insulating resin as binder resin of conductive paste includes epoxy resin, polyester resin, phenol resin, phenoxy resin, xylene resin, amino resin, alkyd resin, polyurethane resin, acrylic resin, polyimide resin, styrene resin , Vinyl chloride resin, silicone resin and the like, or a combination of two or more.

  In a continuous ink jet gun, a conductive paste having a viscosity of 20 Pa · s or less at normal temperature is preferable. If a viscosity is set to 20 Pa · s or less using a heating device, a conductive paste having a higher viscosity may be used. Is possible. In a non-contact dispenser gun, the viscosity can be a wide range of viscosity of 80 Pa · s or less.

  These devices are adjusted by the adjustment means so that the nozzle is held at a reference distance in a non-contact manner on the surface of the three-dimensionally shaped resin molded product in a state where it is separated from the surface of the three-dimensionally shaped resin molded product. It has been adjusted. In the present invention, the reference distance is preferably in the range of 0.1 to 30 mm. Even if there is a dimensional error (error in the direction perpendicular to the surface of the molded product) in the three-dimensional resin molded product, it will vary to some extent if the distance between the nozzle tip and the three-dimensional resin molded product is within this range. However, the circuit can be formed stably.

If circuit formation is possible even for 3D-shaped resin molded products with dimensional errors, there is a slight dimensional error in the direction perpendicular to the surface of each product that is mass-produced with the same shape and dimensions. However, it is not necessary to measure the shape each time. It is particularly preferable that the adjusting means is a means (for example, NC “numeric control”) that measures the shape of a three-dimensional resin molded product in advance and can program the movement by teaching. Further, even if a new circuit is formed at a portion where the circuit is formed, such as crossing the circuits, it can be used for circuit formation without measuring again with respect to a dimensional change corresponding to the thickness of the already formed circuit.
A more preferable reference distance is about 10 mm for a continuous inkjet gun, and 0.1 to 4 mm for a non-contact dispenser gun.

If the reference distance is less than 0.1 mm, the nozzle and the three-dimensionally shaped resin molded product may come into contact with each other, which is not preferable. On the other hand, if the reference distance exceeds 30 mm, the droplet landing accuracy tends to deteriorate, which is not preferable.
The supply means in the circuit forming apparatus of the present invention is not particularly limited as long as the liquid conductive material can be supplied to the nozzle, but a pump or the like can be used, thereby the liquid conductive material stored in a tank or the like. Is supplied to the nozzle.

Next, the circuit forming apparatus of the present invention will be described with specific examples.
1 and 2 are schematic configuration diagrams of a circuit forming apparatus according to the present invention.

  FIG. 1 shows a configuration in which an ink jet gun is used for the ejection part. In FIG. 1, a three-dimensional shaped resin molded product 6 is placed on a cradle 8 and a six-axis robot 3a serving as a moving body is caused to grip a continuous inkjet gun 2a serving as a discharge unit. The liquid conductive material discharged from the nozzle 20 of the inkjet gun 2a is stored in the tank 9, and is supplied to the nozzle of the inkjet gun 2a by the pump 4 which is a supply means. The inkjet gun 2a maintains the reference distance by adjusting the position of the six-axis robot 3a by adjusting means (not shown) that scans the surface of the three-dimensionally shaped resin molded product 6 in accordance with a teaching procedure. Can do.

  The reference distance between the tip of the nozzle 20 of the inkjet gun 2a and the three-dimensionally shaped resin molded product 6 is set to 0.1 to 30 mm. That is, while the distance between the nozzle tip and the surface of the three-dimensional resin molded product 6 is within the above range, the six-axis robot 3a is moved so as to be always perpendicular to the surface of the three-dimensional resin molded product 6 to move the nozzle 20. Then, a liquid conductive material droplet 5 is discharged and applied to the surface of the three-dimensional resin molded product 6 to form a circuit 7.

  A circuit can be stably formed when the reference distance (discharge distance) is in the range of 0.1 to 30 mm. Even if there is a dimensional error in the direction perpendicular to the surface of the molded product, it is acceptable if the distance between the nozzle tip and the three-dimensional resin molded product is within that range.

  After the circuit is formed, the three-dimensional resin molded product 6 having the circuit 7 formed on the surface is removed from the cradle 8 and dried in a drying furnace at 60 to 130 ° C. for 10 to 60 minutes to cure the liquid conductive material. Let

  FIG. 2 shows a configuration in which a non-contact dispenser gun is used for the discharge part. In FIG. 2, the three-dimensionally shaped resin molded product 6 is placed on a cradle 8, and a non-contact dispenser gun 2b as a discharge unit is gripped by a six-axis robot 3b as a moving body. The liquid conductive material discharged from the nozzle 20 of the non-contact dispenser gun 2b is stored in the tank 9, and is supplied to the nozzle of the non-contact dispenser gun 2b by the pump 4 which is a supply means. The non-contact dispenser gun 2b adjusts the position of the six-axis robot 3b by adjusting means (not shown) that scans the surface of the three-dimensionally shaped resin molded product 6 in accordance with a pre-teached procedure. Can keep.

  The reference distance between the tip of the nozzle 20 of the non-contact dispenser gun 2b and the three-dimensional resin molded product 6 is set to 0.1 to 30 mm. That is, while the distance between the nozzle tip and the surface of the three-dimensional resin molded product 6 is within the above range, the six-axis robot 3b is moved so as to be always perpendicular to the surface of the three-dimensional resin molded product 6 to move the nozzle 20. Then, a liquid conductive material droplet 5 is discharged and applied to the surface of the three-dimensional resin molded product 6 to form a circuit 7.

A circuit can be stably formed when the reference distance (discharge distance) is in the range of 0.1 to 30 mm. Even if there is a dimensional error in the direction perpendicular to the surface of the molded product, it is acceptable if the distance between the nozzle tip and the three-dimensional resin molded product is within that range.
As the specification of the non-contact dispenser gun 2b, a nozzle having a hole diameter of 60 to 1450 μm that discharges a liquid conductive material can be used. The pressure (syringe pressure) of the pump 4 that supplies the liquid conductive material from the tank 9 to the nozzle 20 varies depending on the viscosity of the liquid conductive material and the hole diameter of the nozzle, but is 0.005 to 0.7 kPa. The solenoid valve pressure for controlling the pressure is 0.5 MPa or more, the solenoid valve open / close cycle is 4 to 19.8 ms / cycle, and the stroke of the rod that strikes the valve seat (operation) to pressurize the liquid conductive material and discharge it from the nozzle Distance) The width is set to 0.5 to 4 mm, and the coating operation speed is set to 10 to 200 mm / s. From the nozzle 20, 50 to 270 droplets of the liquid conductive material 5 may be formed per second.

After the circuit is formed, the three-dimensional resin molded product 6 having the circuit 7 formed on the surface is removed from the receiving base 8 and dried at 80 to 130 ° C. for 30 to 60 minutes in a drying furnace to cure the liquid conductive material. Let
The non-contact type dispenser has a circuit to be formed according to the application speed of the six-axis robot, the syringe pressure, the nozzle hole diameter, the rod stroke, the discharge time, the temperature of the liquid conductive material to be discharged, and the viscosity of the liquid conductive material. Since the line width changes, the circuit is formed with appropriate adjustment.

  Hereinafter, the circuit forming apparatus of the present invention will be specifically described with reference to examples.

Example 1
As shown in FIG. 1, a circuit forming apparatus having an ink jet gun in the discharge portion was used. The three-dimensionally shaped resin molded product 6 was placed on a cradle 8 and a six-axis robot 3a serving as a moving body was held with a continuous inkjet gun 2a serving as a discharge unit. As a liquid conductive material discharged from the ink jet gun 2a, a low temperature curing type silver paste in which silver particles are dispersed in a solvent of γ-butyrolactone and the viscosity is adjusted to about 3 mPa · s at room temperature (15 to 28 ° C.) is used. It was.

The silver paste put in the predetermined tank 9 is sent from the tank 9 to the nozzle 20 of the ink jet gun 2a by the pump 4 as supply means. The inkjet gun 2a can maintain the reference distance by adjusting the position of the six-axis robot 3a by adjusting means (not shown) that scans the surface of the three-dimensionally shaped resin molded product 6 in accordance with a teaching procedure. did it.
The reference distance between the ink jet gun 2a and the nozzle 20 was set to 3 mm. That is, the distance between the tip of the discharge unit nozzle 20 and the surface of the three-dimensional resin molded product 6 is 3 mm, and the six-axis robot 3a is moved so as to be always perpendicular to the surface of the three-dimensional resin molded product 6. Then, a liquid conductive material droplet 5 was discharged from the nozzle 20 and applied to the surface of the three-dimensional resin molded product 6 to form a circuit 7. When this reference distance (discharge distance) was in the range of 3 mm ± 1 mm, the circuit could be stably formed. That is, the dimensional error of the molded product could be allowed within the range.

After the circuit was formed, the three-dimensionally shaped resin molded product 6 having the circuit 7 formed on the surface was removed from the cradle 8 and dried in a drying oven at 100 ° C. for 30 minutes to cure the silver paste.
The specifications of the ink jet gun used in this example will be described in detail. The hole diameter of the nozzle for discharging the silver paste was 65 μm, the pressure for supplying the silver paste to the nozzle was about 0.25 MPa, and the excitation frequency to be applied to the piezoelectric actuator of the nozzle was 70 KHz. From the nozzle, 70000 droplets of silver paste were formed per second, and it was allowed to fly at a speed of 20 m / s and a droplet diameter of 130 μm. Since the silver paste droplets can fly a distance of about 50 mm from the nozzle and can form a circuit in a non-contact manner, a circuit can be formed with high quality without deformation, damage, or disconnection of the crossing line. A dot having a diameter of about 350 μm can be formed on a three-dimensionally shaped resin molded product that protrudes from the ink jet head gun (discharge nozzle) and is 3 mm away from the ink jet head gun.

  A continuous-type inkjet gun can collect and reuse liquid droplets discharged from a nozzle. For this reason, a circuit can be formed without wasting expensive conductive material. In this embodiment, a nozzle having a hole diameter of 65 μm is used. However, since a nozzle having a smaller hole diameter can be used, it can be applied to further fine wiring.

(Example 2)
As shown in FIG. 2, a circuit forming apparatus having a configuration in which a non-contact dispenser gun is provided in the discharge unit was used. The three-dimensionally shaped resin molded product 6 was placed on a receiving base 8, and a non-contact dispenser gun 2b serving as a discharge unit was held by a six-axis robot 3b serving as a moving body. As a liquid conductive material to be discharged from the nozzle 20 of the non-contact dispenser gun 2b, a low-temperature drying type silver paste containing silver particles (manufactured by Fujikura Kasei Co., Ltd., product name: doutite, average particle size: 8 to 10 μm, Viscosity at 15 to 28 ° C .: 60 to 80 dPa) was used.

The silver paste put in the predetermined tank 9 is sent from the tank 9 to the nozzle 20 of the non-contact dispenser gun 2b by the pump 4 which is a supply means. The non-contact dispenser gun 2b adjusts the position of the six-axis robot 3b by adjusting means (not shown) that scans the surface of the three-dimensionally shaped resin molded product 6 in accordance with a pre-teaching procedure, thereby setting the reference distance. I was able to keep it.
The reference distance between the tip of the nozzle 20 and the molded product is set to 3 mm, and the six-axis robot 3b is moved so as to be always perpendicular to the surface of the three-dimensionally shaped resin molded product 6 to move the liquid conductivity from the nozzle 20. A droplet 5 of material was discharged and applied to the surface of a three-dimensional resin molded product 6 to form a circuit 7. A circuit could be stably formed when the discharge distance was in the range of 3 mm ± 1 mm. That is, the dimensional error of the molded product could be allowed within the range.

  After the circuit was formed, the three-dimensional shape resin molded product 6 having the circuit 7 formed on the surface was removed from the cradle 8 and dried in a drying oven at 125 ° C. for 1 hour to cure the silver paste.

The non-contact dispenser changes the line width of the circuit to be formed according to the application speed of the six-axis robot, syringe pressure, nozzle diameter, stroke, discharge time, temperature of the liquid conductive material to be discharged, and the viscosity of the liquid conductive material. To do.
In this embodiment, the hole diameter of the nozzle of the non-contact dispenser is 0.1 mm, the pressure for supplying the silver paste (syringe pressure) is about 0.15 MPa, and the electromagnetic valve pressure for controlling the discharge of the silver paste is 0. .5 MPa, solenoid valve opening / closing cycle 6 ms / time, rod stroke (operating distance) width of silver paste pressurized and discharged from the nozzle 1 mm, application speed of 6-axis robot 50 mm / s, silver ink viscosity Was 5 Pa · s. Here, when it was discharged onto a resin substrate 1 to 10 mm away from the nozzle tip, a line of 0.5 to 2.5 mm could be formed.

  The non-contact dispenser is a very simple mechanism and is easy to maintain, and since the usable material has a wide viscosity range, a relatively inexpensive conductive material can be selected. Can be formed.

1 is a schematic view showing an embodiment of a circuit forming apparatus according to the present invention, and shows a circuit forming apparatus using a continuous-type inkjet gun as a discharge portion. It is the schematic which shows one embodiment of the circuit formation apparatus of this invention, and shows the circuit formation apparatus which used the non-contact-type dispenser gun for the discharge part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circuit formation apparatus 2a Inkjet gun 2b Non-contact dispenser gun 3a, 3b Six axis robot 5 Conductive material droplet 6 Three-dimensional shape resin molded product 7 Circuit

Claims (6)

A discharge portion including at least one nozzle for discharging a liquid conductive material to a three-dimensional shape resin molded product;
A movable body that grips the discharge part and moves the discharge part three-dimensionally along the surface of the three-dimensionally shaped resin molded product;
A circuit forming apparatus having supply means for supplying the conductive material to the nozzle,
The circuit forming apparatus, further comprising: an adjusting unit that adjusts the position of the movable body in a three-dimensional manner so that the nozzle is held at a reference distance without contacting the surface of the three-dimensionally shaped resin molded product.   The adjusting means recognizes the shape of the three-dimensional shape resin molded product by any one of an infrared sensor, an ultrasonic sensor, or a program in which the three-dimensional shape resin molded product is previously measured and converted into data, and the moving body The circuit forming apparatus according to claim 1, wherein the position of the circuit is adjusted.   The circuit forming apparatus according to claim 1, wherein the moving body is a multi-axis robot.   The circuit forming apparatus according to claim 1, wherein the discharge unit is a continuous type ink jet gun.   The circuit forming apparatus according to claim 1, wherein the discharge unit is a non-contact dispenser gun.   The reference distance is an interval of 0.1 to 30 mm, and due to a dimensional error, an actual distance between the tip of the discharge unit nozzle and the surface of the three-dimensional shape resin molded product varies within 0.1 to 30 mm. The circuit forming apparatus according to claim 1, wherein line drawing is possible.

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