JP7455259B1 - Coating device and method for manufacturing objects coated with coating material - Google Patents

Abstract

[Problem] To provide a coating device capable of changing the coating width with high accuracy, and a method for manufacturing an object coated with a coating substance. [Solution] The coating device 1 includes a die head 10, and a reciprocating device 30 having a motor 31 and a slider 33. The die head 10 includes a fixed die head 11 and a movable die head 15 movable relative to the fixed die head 11, and a discharge port 19 from which a coating substance C is discharged is formed between the fixed die head 11 and the movable die head 15, and the opening area of the discharge port 19 is variable by the movement of the movable die head 15. The movable die head 15 is attached to a slider 33 that moves linearly back and forth by the motor 31, and the movable die head 15 moves linearly back and forth by the operation of the reciprocating device 30. In the method for manufacturing an object coated with a coating substance, the coating object is placed on a receiving table, the coating object is coated with the coating substance C discharged from the coating device 1, and the coating object coated with the coating substance C is removed from the receiving table. [Selected Figure] FIG.

Description

The present disclosure relates to a coating device and a method of manufacturing an object coated with a coating material, and more particularly to a coating device that can change the coating width and a method of manufacturing an object coated with a coating material.

For example, there is a coating device having a die head for coating a substrate with a coating substance such as an adhesive. Generally, such a coating device applies a coating substance to form a rectangular coating film, but it is also possible to apply a coating substance to form a coating film having a curved part such as a circle. There are some products that allow you to change the coating width. As a coating device with variable coating width, there is one in which a slit-shaped nozzle is formed on the joint surface of a fixed die plate and a movable die plate, and the slit length is changed by sliding the movable die plate with a sliding mechanism (for example, (See Patent Document 1.)

JP2020-97000A

However, the coating device described in Patent Document 1 transmits the rotation of the motor to the screw shaft connected to the movable die plate via a gear train that combines a plurality of gears, so it is prone to backlash of the gears. Therefore, it is difficult to adjust the slit length to the intended size.

In view of the above-mentioned problems, the present disclosure relates to providing a coating device that can change the coating width with high precision and a method for manufacturing an object coated with a coating substance.

A coating device according to a first aspect of the present disclosure is a die head including a fixed die head and a movable die head movable with respect to the fixed die head, wherein a discharge port through which a coating substance is discharged is connected to the fixed die head. A die head formed between the movable die head and capable of changing the opening area of the discharge port by movement of the movable die head, a motor, and a slider that linearly reciprocates by the operation of the motor. a reciprocating device, the movable die head is attached to the slider, and the movable die head linearly reciprocates by the operation of the reciprocating device.

With this configuration, the amount of movement of the slider is directly reflected in the amount of movement of the movable die head, so the movable die head can be moved quickly with high precision.

Further, as a coating device according to a second aspect of the present disclosure, the coating device according to the first aspect of the present disclosure may include a pressing member that presses the movable die head toward the fixed die head.

With this configuration, it is possible to prevent the fixed die head and the movable die head from unintentionally separating.

Further, as a coating device according to a third aspect of the present disclosure, in the coating device according to the first aspect of the present disclosure, the pressing member has a linear guide, and the rail of the linear guide is attached to the movable die head. It may be fixed.

With this configuration, the movable die head can be moved along a predetermined trajectory with respect to the holding member.

Further, in the coating device according to a fourth aspect of the present disclosure, in the coating device according to any one of the first to third aspects of the present disclosure, the fixed die head and the movable die head are mutually arranged. It may have a fitting structure on the surface facing the.

With this configuration, the movable die head can be moved along a predetermined trajectory with respect to the fixed die head.

Further, in the coating device according to a fifth aspect of the present disclosure, the fixed die head and the movable die head are arranged in the coating device according to any one of the second to fourth aspects of the present disclosure. It may have a temporary fixing mechanism that temporarily fixes the fixed die head and the movable die head, and the fixed die head and the pressing member may have a permanent fixing mechanism that fixes the fixed die head and the pressing member.

With this configuration, the fixed die head and the holding member can be permanently fixed while the fixed die head and the movable die head are temporarily fixed, and even if the temporary fixation is subsequently released, the fixed die head and the movable die head cannot be fixed together. Able to maintain appropriate distance.

Further, in the coating device according to a sixth aspect of the present disclosure, in the coating device according to any one of the first to fifth aspects of the present disclosure, the die head is arranged such that the fixed die head and the movable die head are connected to each other. A resin shim may be provided between the die head and the die head.

With this configuration, since the resin shim is provided, it is possible to reduce friction between the sliding surfaces of the fixed die head and the movable die head, and it is also possible to reduce leakage of the coating substance.

Further, as a coating device according to a seventh aspect of the present disclosure, in the coating device according to the sixth aspect of the present disclosure, the shim is selected from the group consisting of PEEK, polyacetal, ultra-high molecular weight polyethylene, PBT, and PPS. It may be made of at least one selected material.

With this configuration, it is possible to improve wear resistance and further reduce leakage of the coating material.

A method for manufacturing an object coated with a coating material according to an eighth aspect of the present disclosure includes a method for manufacturing an object coated with a coating material, in which the coating material discharged by the coating device according to any one of the first to seventh aspects of the present disclosure is A method of manufacturing an object coated with a coating material applied to the coating object, the method comprising: placing the coating object to which the coating substance is applied on a pedestal; and the coating placed on the pedestal. The method includes the steps of applying the coating substance discharged from the coating device onto an object, and taking out the coating object coated with the coating substance from the pedestal.

With this configuration, it is possible to quickly manufacture a coating material-coated object onto which the coating material has been applied with high precision.

According to the present disclosure, since the amount of movement of the slider is directly reflected in the amount of movement of the movable die head, the movable die head can be quickly moved with high precision.

(A) is an exploded perspective view of a coating device according to one embodiment, and (B) is a vertical sectional view of the coating device. 1A is a front view of a fixed die head provided in a coating apparatus according to one embodiment, and FIG. 1B is a front view of a movable die head provided in the coating apparatus according to one embodiment. FIG. 3 is a plan view illustrating a manner in which a coating substance is applied to a coated object. 3 is a flowchart illustrating a method for manufacturing an object coated with a coating material according to an embodiment.

Embodiments will be described below with reference to the drawings. In each figure, members that are the same or correspond to each other are designated by the same or similar reference numerals, and redundant explanations will be omitted.

First, a coating apparatus 1 according to an embodiment will be described with reference to FIGS. 1(A) and 1(B). FIG. 1(A) is an exploded perspective view of the coating device 1, and FIG. 1(B) is a vertical sectional view of the coating device 1. The coating device 1 is a device that applies a coating substance C, and is a device that can change the coating width while coating the coating substance C. The coating substance C applied by the coating device 1 may be, for example, a resin such as an adhesive, and typically has a predetermined viscosity with fluidity during coating, and has a predetermined viscosity with fluidity during coating. The viscosity may increase over time and eventually lose fluidity and harden. Hereinafter, first, the configuration of the coating device 1 will be explained. The coating device 1 includes a die head 10, a moving device 30, and a pressing member 50.

The die head 10 includes a fixed die head 11, a movable die head 15, and a shim 21. In the die head 10, a slit-shaped discharge port 19 is formed between the fixed die head 11 and the movable die head 15 by aligning the fixed die head 11 and the movable die head 15 with a shim 21 in between. The discharge port 19 is an opening through which the coating material C is discharged, and is typically formed at the bottom of the die head 10. The die head 10 also has an inlet (not shown) that receives the coating material C from the outside. The die head 10 is configured such that the opening area (slit length) of the discharge port 19 can be changed by moving the movable die head 15 with respect to the fixed die head 11 along the opposing surfaces. There is. Hereinafter, for convenience of explanation, as shown in FIG. 1A, the direction in which the movable die head 15 moves (width direction of the discharge port 19) is the X direction, and the direction in which the fixed die head 11 and the movable die head 15 overlap is the Y direction. The height direction of the die head 10 is sometimes referred to as the Z direction. The X direction, Y direction, and Z direction are orthogonal to each other.

The fixed die head 11 is typically made of metal and is generally formed into a thick plate shape. The length of the fixed die head 11 in the X direction may be determined depending on the size of the workpiece (object to be coated) to which the coating substance C is coated. The fixed die head 11 has a surface facing the movable die head 15 (hereinafter referred to as "first opposing surface 12") that is entirely flat, and has a plurality of bolt holes 13 (see FIG. 1(B)). It is formed. The bolt hole 13 is a hole into which a cam follower bolt 25 (see FIG. 1(B)) is attached. Note that in order to avoid complication of the drawing, illustration of the bolt hole 13 and the cam follower bolt 25 is omitted in FIG. 1(A). The cam follower bolt 25 attaches the fixed shim 22 of the shims 21 to the fixed die head 11, and rotates as the movable die head 15 moves while its outer ring contacts the movable die head 15.

As is clear from the front view of the fixed die head 11 shown in FIG. 2(A), a plurality of cam follower bolts 25 are arranged at intervals in the X direction. In other words, the fixed die head 11 has a plurality of bolt holes 13 (see FIG. 1(B)) arranged at intervals in the X direction. Further, a plurality of first temporary fixing holes 28 are formed in the first opposing surface 12 . Each first temporary fixing hole 28 is formed between the bolt holes 13. Therefore, the bolt holes 13 and the first temporary fixing holes 28 are alternately formed in the first opposing surface 12 at appropriate intervals on a virtual straight line extending in the X direction. The purpose of the first temporary fixing hole 28 will be described later. The bolt holes 13 and the first temporary fixing holes 28 are typically formed above half the height (distance in the Z direction) of the fixed die head 11, and in this embodiment, from the top of the fixed die head 11. It is formed at a position approximately ⅓ below the height of the fixed die head 11. The fixed die head 11 is formed so that the thick plate-like thickness (distance in the Y direction) is larger than the depth of the bolt hole 13 and the first temporary fixing hole 28 .

The movable die head 15 is typically made of metal and is generally formed into a thick plate shape. The side shape (shape in the YZ plane) of the movable die head 15 is typically formed symmetrically with respect to the side surface shape of the fixed die head 11 (line symmetry with the first opposing surface 12 as the axis of symmetry). The length of the movable die head 15 in the X direction is typically larger than the length of the fixed die head 11 in the X direction. The movable die head 15 has a surface facing the fixed die head 11 (hereinafter referred to as "second facing surface 16") that is entirely flat and has bolt grooves 17 formed therein. The bolt groove 17 is a groove that accommodates a plurality of cam follower bolts 25 attached to the fixed die head 11.

As is clear from the front view of the movable die head 15 shown in FIG. 2(B), the bolt groove 17 is formed over the entire second opposing surface 16 in the X direction. The height (distance in the Z direction) of the bolt groove 17 is formed to a height corresponding to the diameter of the outer ring of the cam follower bolt 25. Further, the bolt groove 17 is formed at a position corresponding to the cam follower bolt 25 when the first opposing surface 12 and the second opposing surface 16 are combined to form the die head 10. A plurality of second temporary fixing holes 29 are formed inside the bolt groove 17 (at the bottom of the groove). The plurality of second temporary fixing holes 29 are typically formed at the same spacing as the first temporary fixing holes 28 (see FIG. 1(A)); It may also be formed. The second temporary fixing hole 29 penetrates to the surface of the movable die head 15 on the back side of the second opposing surface 16 . The purpose of the second temporary fixing hole 29 will be described later.

The plurality of cam follower bolts 25 attached to the first opposing surface 12 and the bolt grooves 17 formed in the second opposing surface 16 are configured such that the cam follower bolts 25 fit into the bolt grooves 17, and the bolt grooves 17 are formed in the second opposing surface 16. Corresponds to the structure. This fitting structure contributes to guiding the direction in which the movable die head 15 moves relative to the fixed die head 11. In this embodiment, the fitting structure is such that the movable die head 15 and the fixed die head 11 are relatively movable in the direction in which the bolt groove 17 extends, that is, in the direction in which the cam follower bolts 25 are arranged.

The movable die head 15 has a rail groove 18 formed on the back side of the second opposing surface 16. The rail groove 18 is a groove into which the rail 56 of the linear guide 55, which is a component of the holding member 50, is fitted. Since the rail groove 18 is for determining the position of the rail 56 with respect to the movable die head 15, it is sufficient if it has a depth that allows the rail 56 to be fitted into the movable die head 15 without moving. The rail groove 18 is typically formed to extend parallel to the bolt groove 17.

The shim 21 is typically a shim plate made of resin. In this embodiment, the shim 21 includes a fixed shim 22 and a movable shim 23. The fixed shim 22 is attached to the first opposing surface 12 of the fixed die head 11. In this embodiment, the fixed shim 22 has a rectangular shape that is approximately the same shape as the first opposing surface 12, with the middle part of the side corresponding to the discharge port 19 side being cut out. The fixed shim 22 is attached to the first opposing surface 12 by a cam follower bolt 25. The movable shim 23 is attached to the second opposing surface 16 of the movable die head 15. The movable shim 23 is formed in a size that fills a part of the notched portion of the fixed shim 22, and in this embodiment is formed in an elongated rectangular shape. The fixed shim 22 and the movable shim 23 function as the shim 21 by being sandwiched between the first opposing surface 12 and the second opposing surface 16 so as not to overlap each other.

The shim 21 has a role of defining the size of the discharge port 19 of the die head 10. Typically, the thickness of the shim 21 is the thickness (distance in the Y direction) of the slit-shaped discharge port 19. Furthermore, the distance between the fixed shim 22 and the movable shim 23 when looking inside the die head 10 from the discharge port 19 is the length of the slit-shaped discharge port 19 (distance in the X direction). The shim 21 is configured such that when the movable shim 23 moves in the X direction with the movement of the movable die head 15, the distance between the fixed shim 22 and the movable shim 23 changes, and the opening area of the discharge port 19 changes. ing.

The shim 21 is preferably made of an appropriate material from the viewpoints of wear resistance, dimensional accuracy (processing accuracy), sealing performance (sealing performance), chemical resistance, uniformity, and/or hardness. The shim 21 is made of at least one material selected from the group consisting of PEEK (polyetheretherketone), polyacetal, ultra-high molecular weight polyethylene, PBT (polybutylene terephthalate), and PPS (polyphenylene sulfide). good. In particular, when the above-mentioned characteristics are comprehensively taken into account, it is optimal to use PEEK, and henceforth, it is preferable to use the material for the shim 21 in the order of priority listed. However, if sealing properties are more important than dimensional accuracy, ultra-high molecular weight polyethylene may be given priority over polyacetal, and if dimensional accuracy and sealing properties are more important than wear resistance, PBT or PPS may be substituted with polyacetal or ultra-high molecular weight polyethylene. Preference may be given to polyethylene. Note that the shim 21 may be made of UNILATE (registered trademark) depending on usage conditions. Since the shim 21 is made of the above-mentioned type of resin, it is possible to avoid direct rubbing between the fixed die head 11 and the movable die head 15, both of which are made of metal.

The moving device 30 is a device that moves the movable die head 15 with respect to the fixed die head 11. Although a single-axis robot is typically used as the moving device 30, a linear motor or other device capable of linear movement may also be used. As shown in FIG. 1(A) (not shown in FIG. 1(B)), the moving device 30 includes a motor 31, a ball screw 32, and a slider 33. In the moving device 30, a ball screw 32 rotates around its axis due to the operation of a motor 31, and due to the rotation of the ball screw 32, a slider 33 inserted through the ball screw 32 moves along the axis of the ball screw 32. There is. The moving device 30 can linearly reciprocate the slider via a ball screw 32 by rotating the shaft of an electrically operated motor 31 in the forward or reverse direction, and corresponds to a reciprocating device.

The moving device 30 is fixed to a position adjustment plate 88 to which the fixed die head 11 is fixed, and the motor 31 and the ball screw 32 are not moved with respect to the position adjustment plate 88. In the moving device 30, a slider 33 is connected to the movable die head 15 via a fixture 35. With this configuration, the movable die head 15 linearly reciprocates in conjunction with the linear reciprocating movement of the slider 33. In this embodiment, since a single-axis robot is used as the moving device 30, when changing the moving direction of the slider 33, it is possible to suppress backlash that occurs when moving gears in combination as in the past. , it is possible to achieve highly accurate positioning.

The pressing member 50 is a member that presses the movable die head 15 toward the fixed die head 11. The pressing member 50 is provided so as to wrap around the movable die head 15 from the opposite side of the fixed die head 11, and is fixed to the fixed die head 11. The pressing member 50 presses the movable die head 15 so that it can move relative to the fixed die head 11 when the movable die head 15 is pressed toward the fixed die head 11. The distance of the holding member 50 in the X direction is smaller than the distance of the fixed die head 11 in the The parts that are in common are starting to appear. The holding member 50 has a cover 51 and a linear guide 55. Although the cover 51 and the linear guide 55 are shown separately in FIG. 1A for understanding the configuration, the linear guide 55 is actually fixed to the cover 51.

In this embodiment, the cover 51 includes a vertical cover 52 and a horizontal cover 53. The vertical cover 52 is arranged to face the surface of the movable die head 15 in which the rail groove 18 is formed. A linear guide 55 is attached to the vertical cover 52. The vertical cover 52 presses the movable die head 15 toward the fixed die head 11 (in the Y direction) via the linear guide 55. The horizontal cover 53 is arranged to cover the upper part of the die head 10. The horizontal cover 53 extends from the top of the vertical cover 52 over the top of the movable die head 15 to the top of the fixed die head 11. In the horizontal cover 53, a plurality of elongated holes 54 for passing bolts (not shown) are formed at positions above the fixed die head 11 when the holding member 50 is attached. The horizontal cover 53 is fixed to the fixed die head 11 with bolts passed through the elongated holes 54. Therefore, a screw hole is formed on the upper surface of the fixed die head 11 to fasten a bolt for fixing the holding member 50. In this embodiment, the vertical cover 52 and the horizontal cover 53 are constructed separately and connected with bolts, but they may be integrally formed.

The linear guide 55 is a member provided to smoothly move the movable die head 15 relative to the fixed die head 11 while pressing the movable die head 15 toward the fixed die head 11 with the cover 51. The linear guide 55 has a rail 56 and a carriage 57. The rail 56 is a member for guiding the movement of the carriage 57, and is formed in a straight line. The carriage 57 has a ball spline inside and can move on the rail 56 with a low load. In this embodiment, the rail 56 is fixed to the rail groove 18 of the movable die head 15, and the carriage 57 is fixed to the vertical cover 52. The movable die head 15 is supported by a plurality of cam follower bolts 25 on the second opposing surface 16 and supported on the rail 56 on the opposite surface, so that it can move stably and smoothly with respect to the fixed die head 11. is now possible.

In this embodiment, the coating device 1 configured as described above includes a single-axis robot 81 separate from the moving device 30 so that the entire die head 10 can also be linearly reciprocated. The slider of the single-axis robot 81 is connected via a connecting member 85 to a position adjustment plate 88 to which the fixed die head 11 is fixed. The position adjustment plate 88 is connected to a pedestal 83 to which the single-axis robot 81 is fixed by a linear guide having the same configuration as the linear guide 55.

The coating device 1 is preferably constructed appropriately when assembled in order to apply the coating substance C with high precision. Below, a procedure for appropriately constructing a coating device will be explained. Before explaining the construction procedure below, do the following. A fixed shim 22 is attached to the first opposing surface 12 of the fixed die head 11 using a cam follower bolt 25. A movable shim 23 is attached to the second opposing surface 16 of the movable die head 15. The fixture 35 attached to the moving device 30 and the movable die head 15 are separated. Although the moving device 30 separated from the movable die head 15 is separated from the position adjustment plate 88 in FIG. 1A for convenience of explanation, it is actually fixed to the position adjustment plate 88. From this state, we will begin to explain the construction procedure.

From the above-mentioned state, the movable die head 15 is aligned with the fixed die head 11, and the pressing member 50 is arranged so as to cover the fixed die head 11 and the movable die head 15. After the holding member 50 is placed, a bolt is passed through the elongated hole 54 of the horizontal cover 53, and the bolt is screwed into a screw hole formed on the upper surface of the fixed die head 11 and temporarily tightened. The temporary tightening here is to tighten the bolts while leaving room for movement of the movable die head 15 relative to the fixed die head 11. At this time, the movable die head 15 is supported by the cam follower bolt 25 attached to the fixed die head 11 and the rail 56 of the holding member 50, so it will not fall off.

After temporarily fixing the holding member 50 to the fixed die head 11, pass a bolt through the second temporary fixing hole 29 (see FIG. 2(B)) from the side of the movable die head 15 where the rail groove 18 is formed. It is screwed into the first temporary fixing hole 28 (see FIG. 2(A)) formed in the fixed die head 11. The bolts screwed into the first temporary fixing holes 28 through the second temporary fixing holes 29 can be said to be temporary fixing because they are screwed in on the left and right outer sides of the holding member 50 and are planned to be removed later. In this temporary fixing, the first opposing surface 12 and the second opposing surface 16 are firmly fixed through the shim 21 so that they are in close contact with each other. This temporary fixing can suppress the formation of a gap between the first opposing surface 12 and/or the second opposing surface 16 and the shim 21, and prevent the coating substance C from unintentionally leaking from the die head 10. can be suppressed. In this embodiment, the first temporary fixing hole 28, the second temporary fixing hole 29, and the bolt screwed into the first temporary fixing hole 28 through the second temporary fixing hole 29 correspond to the temporary fixing mechanism.

After temporarily fixing the fixed die head 11 and the movable die head 15, while pressing the holding member 50 toward the movable die head 15 so that they are in close contact with each other, insert the bolt passed through the elongated hole 54 into the screw hole on the upper surface of the fixed die head 11. Screw it. In this way, the pressing member 50 is firmly fixed to the fixed die head 11. The fixation performed here is maintained even when the coating device 1 is in operation, and can be called permanent fixation. In this embodiment, the elongated hole 54, the screw hole formed on the upper surface of the fixed die head 11, and the bolt that is screwed into the screw hole formed on the upper surface of the fixed die head 11 through the elongated hole 54 correspond to the present fixing mechanism. . After the holding member 50 is permanently fixed to the fixed die head 11, the bolt screwed into the first temporary fixing hole 28 through the second temporary fixing hole 29 is removed. Thereby, the movable die head 15 can be moved in the X direction relative to the fixed die head 11 while the movable die head 15 is maintained at an appropriate position relative to the fixed die head 11.

As shown in FIG. 3, a coating device 1 (only the die head 10 is shown for convenience in FIG. 3) typically has a work W as a coating object to which a coating substance C is coated placed thereon. It is arranged above the pedestal 99 with the discharge port 19 (see FIG. 1(B)) facing downward. Then, while discharging the coating material C from the discharge port 19 at an appropriate position, the pedestal 99 on which the workpiece W is placed is moved in the Y direction (in this embodiment, it is moved from the bottom to the top of the paper in FIG. 3). By doing so, the coating material C is applied to the workpiece W. By moving the movable die head 15 with respect to the fixed die head 11 using the moving device 30 while discharging the coating material C toward the workpiece W, the width of the coating material C applied to the workpiece W (X direction length) can be changed. Further, by moving the entire die head 10 in the X direction using the single-axis robot 81, the position where the coating substance C is applied to the workpiece W can be changed.

Next, with reference to FIG. 4, a method for manufacturing a workpiece W coated with a coating material C (hereinafter referred to as a "coated workpiece CW") will be described. FIG. 4 is a flowchart illustrating the procedure for manufacturing the coated workpiece CW. The coated workpiece CW described here is manufactured using the coating apparatus 1 described above. The following description of the method for manufacturing the coated workpiece CW also serves as a description of the operation of the coating device 1. In the following description, when referring to the configuration of the coating device 1, reference will be made to FIGS. 1(A) to 3 as appropriate. The operation of the coating device 1 in the following description is typically performed by a control device (not shown).

After starting the production of the coated workpiece CW, the workpiece W to be coated with the coating substance C is placed on the pedestal 99 (S1). The placement of the workpiece W on the pedestal 99 may be performed by a robot hand (not shown) or may be performed by an operator. If the pedestal 99 is provided with a fixing means (not shown), after placing the work W on the pedestal 99, the fixing means (not shown) prevents the work W from moving relative to the pedestal 99. It is best to fix it.

After placing the workpiece W on the pedestal 99, the pedestal 99 starts moving in the Y direction, and at the same time, the coating material C is timely discharged from the discharge port 19 of the die head 10, and the coating material discharged from the discharge port 19 is C is applied to the workpiece W (S2). As described above, while discharging the coating material C toward the workpiece W, the movable die head 15 and/or the entire die head 10 is reciprocated in the X direction, thereby reducing the coating material C applied to the workpiece W. The width and the application position with respect to the workpiece W can be changed as appropriate. As a result, it is possible to form a film of the coating material C on the workpiece W in various shapes, such as a circle, an ellipse, a triangle, a square including a rectangle or a trapezoid, and a polygon such as a pentagon. . At this time, the movable die head 15 is moved by the moving device 30 using a single-axis robot, and the entire die head 10 is moved by the single-axis robot 81, so that the movement can be performed quickly with high precision. Therefore, if the distance is short, the coating width (distance in the X direction) can be changed instantly, and as in the film of coating substance C shown in FIG. Can be applied. Furthermore, since the shim 21 is made of resin such as PEEK, it is possible to reduce damage to the first opposing surface 12 and the second opposing surface 16 that slide against the shim 21 due to friction, and It is possible to reduce leakage of the coating substance C from the moving surface. When the application of the coating substance C to the workpiece W is completed, a coated workpiece CW is generated.

Once the coated workpiece CW is generated, the coated workpiece CW is taken out from the pedestal 99 (S3). Retrieval of the coated workpiece CW from the pedestal 99 may be performed by a robot hand (not shown) or may be performed by an operator. At this time, if the workpiece W is fixed to the pedestal 99 by a fixing means (not shown), the workpiece W is taken out after the fixing means (not shown) is removed. With the above, manufacturing of one coated workpiece CW is completed. When the production of one coated workpiece CW is completed, it is determined whether there is a workpiece W to which the coating substance C is to be applied next (S4). If there is the next workpiece W, the process returns to the step (S1) of placing the workpiece W on the pedestal 99, and thereafter the above-described procedure is repeated. If there is no next workpiece W, the production of the coated workpiece CW is ended.

As explained above, according to the coating device 1 according to the present embodiment, the moving device 30 using a single-axis robot directly moves the movable die head 15, so the movable die head 15 can be moved quickly and accurately. can be moved to This allows coating substances C of various shapes to be applied to the workpiece W as intended, and allows fine adjustment of the width even for a workpiece W with a narrow frame, for example. In addition, since the fixed die head 11 and the movable die head 15 are held by the holding member 50 having the linear guide 55, the movable die head 15 is prevented from unintentionally separating from the fixed die head 11, and It can be moved in orbit. Moreover, since the fixed die head 11 and the movable die head 15 have a fitting structure in which the cam follower bolt 25 fits into the bolt groove 17, the movable die head 15 can be moved stably and smoothly. Further, the fixed shim 22 can be removed from the fixed die head 11 by simply removing the holding member 50 from the die head 10, separating the movable die head 15 from the fixed die head 11, and removing the cam follower bolt 25 from the fixed die head 11. This allows the fixed shim 22 to be easily cleaned and replaced. In addition, by assembling the coating device 1 using the first temporary fixing hole 28 formed in the fixed die head 11 and the second temporary fixing hole 29 formed in the movable die head 15, the movable die head 15 can be aligned parallel to the fixed die head 11. can be carried out appropriately. Thereby, the die head 10 that can apply the coating substance C with high precision can be constructed.

In the above description, the die head 10 has the shim 21, but if omitting the shim 21 does not cause any adverse effects, the shim 21 may be omitted. In this case, the discharge port 19 may be formed directly on the fixed die head 11 and/or the fixed die head 11 . However, it is preferable to include the shim 21 because the shim 21 can improve wear resistance and reduce leakage of the coating material.

In the above description, the workpiece W is coated with the coating substance C by moving the pedestal 99 on which the workpiece W is placed in the Y direction with respect to the coating device 1 . However, instead of the pedestal 99, the coating device 1 may be moved in the Y direction, or both the coating device 1 and the pedestal 99 may be moved.

In the above description, the coating apparatus and the method of manufacturing the object coated with the coating material according to the embodiment of the present invention were explained using FIGS. 1(A) to 4 as an example, but the configuration, structure, Regarding the number, arrangement, shape, material, etc., it is not limited to the above-mentioned specific examples, and those selectively adopted as appropriate by those skilled in the art are also included in the scope of the present invention as long as the gist of the present invention is included.

1 Coating device 10 Die head 11 Fixed die head 15 Movable die head 17 Bolt groove (fitting structure)
19 Discharge port 21 Shim 25 Cam follower bolt (fitting structure)
28 First temporary fixing hole (temporary fixing mechanism)
29 Second temporary fixing hole (temporary fixing mechanism)
30 Moving device (reciprocating moving device)
31 Motor 33 Slider 50 Holding member 54 Elongated hole (main fixing mechanism)
55 Linear guide 56 Rail C Coated substance CW Coated workpiece (object coated with coating substance)
W Work (object to be coated)

Claims (8)

A die head comprising a fixed die head, a movable die head movable with respect to the fixed die head , and a shim provided between the fixed die head and the movable die head , the die head having a discharge port through which a coating material is discharged. a die head formed between the fixed die head and the movable die head, and capable of changing the opening area of the discharge port by moving the movable die head;
A reciprocating device having a motor and a slider that linearly reciprocates due to the operation of the motor,
The movable die head is attached to the slider, and the movable die head linearly reciprocates by the operation of the reciprocating device,
The shim includes a fixed shim attached to the fixed die head and a movable shim attached to the movable die head,
The fixed die head has a cam follower bolt that attaches the fixed shim to the fixed die head,
The movable die head has a bolt groove for accommodating an outer ring of the cam follower bolt formed on a surface facing the fixed die head, extending in a direction in which the movable die head linearly reciprocates;
The bolt groove is formed to have a width corresponding to the diameter of the outer ring of the cam follower bolt, and is configured to rotate the outer ring when the movable die head linearly reciprocates,
The cam follower bolt and the bolt groove constitute a fitting structure for fitting the fixed die head and the movable die head,
Coating device. The reciprocating device has a ball screw that rotates around an axis by the operation of the motor,
The slider is inserted into the ball screw and reciprocates linearly along the axis of the ball screw as the ball screw rotates.
The coating device according to claim 1. comprising a pressing member that presses the movable die head toward the fixed die head,
The holding member has a cover fixed to the fixed die head, and a linear guide attached to the cover,
a rail of the linear guide is fixed to the movable die head;
The coating device according to claim 1 . The fixed die head and the movable die head have the fitting structure on mutually opposing surfaces.
The coating device according to claim 1. The fixed die head and the movable die head have a temporary fixing mechanism that temporarily fixes the fixed die head and the movable die head,
The fixed die head and the holding member have a main fixing mechanism that fixes the fixed die head and the holding member,
The temporary fixing mechanism includes a plurality of first temporary fixing holes formed on a surface of the fixed die head facing the movable die head, into which bolts are screwed, and a first temporary fixing hole in which a bolt is screwed, and a first temporary fixing hole in the fixed die head of the movable die head. a second temporary fixing hole penetrating from the opposing surface to the back surface thereof, and a plurality of second temporary fixing holes formed at positions corresponding to the first temporary fixing hole and having a size for passing the bolt,
The main fixing mechanism includes an elongated hole formed in the cover, and a screw hole formed in the fixed die head into which a bolt passing through the elongated hole is screwed.
The coating device according to claim 3 . The shim is a resin shim,
The coating device according to claim 1. The shim is made of at least one material selected from the group consisting of PEEK, polyacetal, ultra-high molecular weight polyethylene, PBT, and PPS.
The coating device according to claim 6. A method for producing a coating material-coated object in which a coating material discharged by the coating device according to any one of claims 1 to 7 is applied to the coating material, the method comprising:
placing the object to be coated with the coating substance on a pedestal;
applying the coating substance discharged from the coating device to the coating object placed on the pedestal;
taking out the object to be coated coated with the coating substance from the pedestal;
A method for manufacturing an object coated with a coating substance.