JP7357714B1 - Resin discharge device and method for manufacturing resin-coated objects - Google Patents

Abstract

The present invention provides a resin discharging device and a method for manufacturing a resin-coated object that suppresses breakage of a plunger. A resin discharging device includes a support that supports a syringe 91 of a cartridge 90 having a syringe 91 and a plunger 95, and a presser 20 that presses the plunger 95 inside the syringe 91 supported by the support. Be prepared. The presser 20 includes a rod 21 that is movable in the axial direction of the syringe 91 in contact with the plunger 95, and a drive mechanism 31 that moves the rod 21 in the axial direction. The rod 21 includes a rod body 22 connected to a drive mechanism 31 and a rubber member 25 provided at the tip of the rod body 22 and in contact with the plunger 95. The method for manufacturing a resin-coated object is to place the object to be coated with resin on a pedestal using the resin discharging device described above, apply resin to the placed object, and then apply the resin to the object. Remove the object to be coated from the holder. [Selection diagram] Figure 3

Description

The present disclosure relates to a resin discharging device and a method of manufacturing a resin-coated object, and more particularly to a resin discharging device and a method of manufacturing a resin-coated object suitable for discharging relatively high-viscosity resin.

Some resins to be applied to objects are provided in containers such as those listed below. In this container, a cylindrical container having a nozzle for discharging the resin is filled with resin, and a plunger movable within the cylindrical container is provided on the opposite side of the nozzle with the resin in between. is sealed. Some devices for discharging resin contained in such containers include a fixed part protective case that supports a cylindrical container, and a piston that can push a plunger toward the tip of the cylindrical container (for example, as disclosed in patents (See Reference 1).

Patent No. 6898640

When the viscosity of the resin contained in the container is relatively high, when the plunger is pressed in an attempt to discharge the resin from the nozzle, the plunger may be damaged.

In view of the above-mentioned problems, the present disclosure relates to providing a resin discharging device that suppresses breakage of a plunger and a method of manufacturing a resin-coated object using this device.

A resin discharging device according to a first aspect of the present disclosure is a resin discharging device that discharges resin contained in a cartridge, wherein the cartridge is a syringe filled with the resin, and the cartridge is a syringe filled with the resin. The resin discharging device includes a syringe having a dispensing needle disposed at its tip for discharging resin, and a plunger movable in the axial direction of the syringe while sealing the resin inside the syringe. A support that supports the syringe; and a press that presses the plunger inside the syringe supported by the support, the press that contacts the plunger and presses the plunger in the axial direction of the syringe. It has a movable rod and a drive mechanism that moves the rod in the axial direction, and the rod includes a rod body connected to the drive mechanism, and a rod body provided at the tip of the rod body and connected to the plunger. and a contacting rubber member.

With this configuration, when the resin is discharged from the syringe, the rubber member contacts the plunger and presses the plunger, so damage to the plunger can be suppressed.

Further, in a resin discharging device according to a second aspect of the present disclosure, in the resin discharging device according to the first aspect of the present disclosure, the syringe has a main portion filled with the resin formed in a hollow cylindrical shape. The plunger has a main portion having a cylindrical external appearance,
The rubber member is formed into a cylindrical shape with an outermost diameter less than or equal to the inner diameter of the syringe and greater than or equal to the outer diameter of the main portion of the plunger.

With this configuration, when the plunger is pushed into the syringe, it is possible to suppress the resin filled in the syringe from leaking from between the plunger and the rubber member and the syringe.

Further, in the resin discharging device according to the third aspect of the present disclosure, in the resin discharging device according to the second aspect of the present disclosure, the plunger has a recess formed at an end on a side that contacts the rod. The rubber member is formed in such a size that a tip located closer to the plunger than the outermost diameter portion fits inside the recess formed in the plunger.

With this configuration, when the plunger is pushed into the syringe, the rubber member fitted into the recess of the plunger acts to press the outer surface of the plunger against the inner wall of the syringe, causing resin to be discharged from the discharge needle. At the same time, it is possible to prevent the resin filled in the syringe from leaking from between the plunger and the syringe.

Further, in a resin discharging device according to a fourth aspect of the present disclosure, in the resin discharging device according to any one of the first to third aspects of the present disclosure, the rubber member has a hardness of It ranges from A40 to Shore A70.

With this configuration, the rubber member can appropriately press the plunger, and when the plunger is pushed into the syringe, the resin filled in the syringe will not leak from between the plunger, the rubber member, and the syringe. can be suppressed.

Further, in a resin discharging device according to a fifth aspect of the present disclosure, in the resin discharging device according to any one of the first to fourth aspects of the present disclosure, the rod is configured to displace the rubber member. It has a fixing member fixed to the rod body.

With this configuration, when the rod is moved in a direction away from the plunger, it is possible to prevent the rubber member from separating from the rod body.

Further, in a resin discharging device according to a sixth aspect of the present disclosure, in the resin discharging device according to any one of the first to fifth aspects of the present disclosure, the resin discharged from the cartridge is A pedestal is provided for receiving the object to be coated.

With this configuration, the position at which the resin discharged from the syringe is applied to the object to be applied can be stabilized.

Further, a method for manufacturing a resin-coated object according to a seventh aspect of the present disclosure includes a method for producing a resin-coated object using resin discharged by the resin discharging device according to any one of the first to sixth aspects of the present disclosure. is a method for producing a resin-coated object having a resin coated on the coating object, the method comprising: placing the coating object to be coated with the resin on a pedestal; and the coating object placed on the pedestal. The method includes a step of applying the resin discharged from the resin discharge device, and a step of taking out the object coated with the resin from the pedestal.

With this configuration, it is possible to manufacture a resin-coated object to which the resin is appropriately coated.

According to the present disclosure, since the rubber member contacts and presses the plunger when discharging the resin from the syringe, damage to the plunger can be suppressed.

FIG. 1 is a perspective view of a resin discharging device according to an embodiment. FIG. 2 is a cross-sectional view showing a schematic configuration of a cartridge installed in a resin discharging device. It is a sectional view showing a schematic structure of a press machine with which a resin discharge device concerning one embodiment is provided. 1 is a flowchart illustrating the steps of a method for manufacturing a resin-coated workpiece 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, with reference to FIG. 1, a resin discharging device 1 (hereinafter simply referred to as "discharging device 1") according to an embodiment will be described. FIG. 1 is a perspective view of the discharge device 1. FIG. As shown in FIG. 1, the discharge device 1 includes an arm 10, a presser 20, and a pedestal 51. In the discharging device 1, the provided cartridge 90 is mounted on the arm 10, and while moving the arm 10 appropriately, the presser 20 is operated at the appropriate time to discharge the resin from the cartridge 90, so that the cartridge 90 is placed on the pedestal 51. This is a device that applies resin to a work W that has been coated. The operation of the discharge device 1 is typically controlled by a control device 60. The discharge device 1 functions as a dispenser. Prior to explaining the ejection device 1, the cartridge 90 will be explained.

FIG. 2 is a sectional view showing a schematic configuration of the cartridge 90. The cartridge 90 includes a syringe 91, a plunger 95, and a resin 99 housed in the syringe 91 and sealed with the plunger 95. Syringe 91 is a member that accommodates resin 99. In this embodiment, the main portion of the syringe 91 is formed into a hollow cylindrical shape. The size of the hollow cylindrical main portion of the syringe 91 can be determined as appropriate depending on the application, but for ease of understanding, in this embodiment, the diameter is approximately 50 mm and the length is approximately 50 mm. The explanation will be made assuming that the length is approximately 200 mm. The syringe 91 has one end of a hollow cylindrical shape having a reduced diameter and a discharge needle 92 provided at the tip. The inner diameter of the discharge needle 92 can be set to an appropriate size depending on the application, for example, 0.3 mm to 10 mm, preferably 0.5 mm to 5.0 mm, and in this embodiment, 1. The explanation will be made assuming that it is 0 mm. In the example shown in FIG. 2, the syringe 91 has a shape in which the cross-sectional area gradually decreases as it approaches the discharge needle 92 at the part where the diameter becomes smaller. It may also be formed into a short tubular shape that does not change. Alternatively, the discharge needle 92 may be provided on the end face of the main portion without providing the portion where the diameter is reduced. The syringe 91 is typically made of polyethylene resin, but may be made of a resin other than polyethylene, or may be made of a material other than resin.

The plunger 95 is a member that can press the resin 99 while sealing it inside the syringe 91 . The plunger 95 is provided inside the syringe 91 so that it can move inside the syringe 91 in the direction in which the axis of the syringe 91 extends. The plunger 95 has a generally cylindrical external appearance. The outer diameter of the plunger 95 is slightly smaller than the inner diameter of the syringe 91 so that movement within the syringe 91 is not hindered. For example, the outer diameter of the plunger 95 may be smaller than the inner diameter of the syringe 91 by about 0.1 mm to 0.5 mm, and in this embodiment, it is set to be 0.2 mm smaller. The portion of the plunger 95 having such an outer diameter will be referred to as the main portion of the plunger 95. A generally cylindrical plunger 95 is provided with a thin ring-shaped piece 96 protruding outward over the entire circumferential circumference on the outer circumferential side surface thereof. One or more ring-shaped pieces 96 are provided. When the plunger 95 is inserted into the syringe 91, the ring-shaped piece 96 comes into contact with the inner wall of the syringe 91, thereby suppressing leakage of the resin 99. The plunger 95 may be formed so that one end surface of the generally cylindrical shape is slightly convex outward. The end surface of the plunger 95, which may be slightly convex outward, is the side that contacts the resin 99 within the syringe 91. The plunger 95 has a recess 97 formed on the end surface opposite to the end surface that may be slightly convex outward. The thickness of the outer periphery of the portion of the plunger 95 where the recess 97 is formed (thickness of the plunger 95 outside the recess 97) may be, for example, 1 mm to 2 mm, or 1.25 mm to 1.5 mm. may be formed. The plunger 95 is typically made of polyethylene resin, but may be made of a resin other than polyethylene, or may be made of a material other than resin.

As the resin 99, a resin with relatively high viscosity is used. For example, a room temperature curable resin (room temperature curable resin) having a viscosity of about 700,000 mPa·s to 1,100,000 mPa·s, preferably about 800,000 mPa·s to 1,000,000 mPa·s at a temperature of 25° C. can be used as the resin 99. The resin 99 may contain silicone, modified silicone, or urethane resin as a main component. A specific example of the resin 99 is ELASTOSIL (registered trademark) N9111 Black from Wacker Chemie AG. Such a high viscosity resin 99 may cause problems if the pushing force of the rod becomes large when pushing the plunger 95 with a rod to discharge it from the syringe 91 using a conventional dispensing device (dispenser). there were. Examples of such problems include the resin 99 leaking from the gap between the syringe 91 and the plunger 95 because the flow rate of the resin 99 discharged from the discharge needle 92 cannot keep up, and the plunger 95 being damaged by the pressure of the rod. etc. The discharging device 1 (see FIG. 1) according to the present embodiment suppresses the above-mentioned problems when handling relatively high-viscosity resin 99.

Returning to FIG. 1, the configuration of the discharge device 1 will be explained. In the following description, when referring to the configuration of the cartridge 90, reference will be made to FIG. 2 as appropriate. The arm 10 holds the cartridge 90 containing the resin 99, and corresponds to a support. The arm 10 is configured to be able to move the cartridge 90 it holds so that the resin 99 contained in the cartridge 90 can be discharged to an appropriate position. Arm 10 has a first arm 11, a second arm 12, and a third arm 13 in this embodiment. The first arm 11 is a rod-shaped member that supports the cartridge 90. The first arm 11 is typically provided with a storage case (not shown) having an opening/closing door, and the cartridge 90 can be attached to this storage case (not shown). The first arm 11 is supported by the second arm 12 so as to be movable in the vertical direction (z-axis direction in FIG. 1). The second arm 12 is a rod-shaped member that supports the first arm 11. The second arm 12 is supported by the third arm 13 so as to be movable in the left-right direction (x-axis direction in FIG. 1). The third arm 13 is a rod-shaped member that supports the second arm 12. The third arm 13 is supported by a rail (not shown) so as to be movable in the front-rear direction (y-axis direction in FIG. 1). Movement of the first arm 11, second arm 12, and third arm 13 is typically controlled by a control device 60.

The presser 20 presses the plunger 95 of the cartridge 90 to extrude the resin 99. Pressing machine 20 is attached to first arm 11 in this embodiment. The presser 20 is attached to the first arm 11 at a position above the cartridge 90 (on the opposite side of the pedestal 51) when the cartridge 90 is held by the first arm 11. In the present embodiment, the presser 20 is configured such that the rod 21 is moved by the drive mechanism 31, and the rod 21 presses the plunger 95, so that the resin 99 is discharged from the syringe 91. A more detailed configuration of the presser 20 will be described below.

FIG. 3 is a sectional view showing a schematic configuration of the presser 20. As shown in FIG. The press 20 includes the rod 21 and the drive mechanism 31 as described above. The rod 21 is a member that can reciprocate in the direction in which the axis of the syringe 91 held by the first arm 11 (see FIG. 1) extends by the operation of the drive mechanism 31. The rod 21 includes a rod body 22, a rubber member 25, and a fixing member 28. The rod body 22 is a main member for transmitting the operation of the drive mechanism 31 to the plunger 95. The rod body 22 is typically an elongated round bar-shaped member extending linearly, but the cross section perpendicular to the longitudinal direction may have a shape other than circular, such as an ellipse or a polygon such as a quadrangle or hexagon. It may be. The rod body 22 is typically made of metal, but may be made of a material other than metal, such as resin. The rod body 22 is arranged such that the axis of the round rod is located on a virtual extension of the axis of the syringe 91. Moreover, one end of the rod body 22 is connected to the drive mechanism 31, and the other end is close to the plunger 95 of the cartridge 90 held by the first arm 11 (see FIG. 1).

The rubber member 25 is a member that comes into contact with the plunger 95. The rubber member 25 is attached to the tip of the rod body 22. The end of the rod body 22 to which the rubber member 25 is attached is the end opposite to the end connected to the drive mechanism 31. The rubber member 25 has a basic cylindrical appearance, and a tapered portion 26 is formed on one end surface. Further, the rubber member 25 has a hole formed at the position of the cylindrical axis, into which a bolt 29 can be inserted. The rubber member 25 is arranged so that the tapered portion 26 side is in contact with the plunger 95. In the present embodiment, the rubber member 25 has no change in the outer diameter of the cylindrical side surface of the portion other than the tapered portion 26, and the outer diameter of this side surface is the outermost diameter. It is preferable that the outermost diameter of the cylindrical side surface of the rubber member 25 is smaller than the inner diameter of the main part of the syringe 91 and larger than the outer diameter of the main part of the plunger 95. In the present embodiment, the rubber member 25 is formed so that the outermost diameter of the cylindrical side surface is smaller than the inner diameter of the main part of the syringe 91 and larger than the outer diameter of the main part of the plunger 95. It is formed 0.1 mm smaller than the inner diameter of the main part of the syringe 91. The outermost diameter of the cylindrical side surface of the rubber member 25 is larger than the inner diameter of the recess 97 of the plunger 95, but the diameter of the tip up to the middle of the tapered portion 26 is smaller than the inner diameter of the recess 97. Therefore, when the rubber member 25 is pressed toward the plunger 95, a part of the tip side of the tapered part 26 fits inside the recess 97 of the plunger 95, and the remaining tapered part 26 and the outermost diameter The portion will be located at the upper end of the plunger 95.

The rubber member 25 is made of a polymeric material having a predetermined hardness. In this embodiment, the rubber member 25 is made of a polyurethane material such as urethane rubber. The predetermined hardness of the rubber member 25 is preferably determined from the viewpoint of suppressing leakage of the resin 99 from the gap between the syringe 91 and the plunger 95 and from the viewpoint of suppressing damage to the plunger 95 when the plunger 95 is pressed. Considering this point of view, the predetermined hardness of the rubber member 25 is preferably in the range of Shore A40 to Shore A70. In this embodiment, a Shore A50 rubber member 25 is used. The reason for this is that when using the cartridge 90 having the above-mentioned configuration (the above-mentioned syringe 91 is filled with the resin 99 of the above-mentioned product), the resin 99 is discharged from the discharge needle 92 within a range where the resin 99 does not leak. This is because the output was the best. When the rubber member 25 has the above-mentioned hardness and the above-mentioned shape and dimensions, when the rod body 22 presses the rubber member 25 toward the plunger 95, the rubber member 25 is elastically deformed not only in the axial direction of the cylinder but also in the radial direction. also applies an external force to the plunger 95. As a result, the plunger 95 is pushed in the axial direction of the syringe 91 to discharge the resin 99 from the discharge needle 92, and the outer periphery of the portion where the depression 97 is formed is pressed against the inner wall of the syringe 91, causing the resin 99 to leak. can be suppressed. From another point of view, the above-mentioned thickness between the outer surface of the plunger 95 and the inside of the recess 97 (the outer peripheral wall of the plunger 95) may be set to such a degree that the outer peripheral wall is bent toward the inner wall of the syringe 91. .

The fixing member 28 is a member that fixes the rubber member 25 to the rod body 22. In the present embodiment, the fixing member 28 has an appearance that looks like two disc-shaped members having different diameters joined together (actually, they are integrally formed). For example, the diameter of the larger disc-shaped member of the fixing member 28 may be about 1.5 times the diameter of the smaller disc-shaped member. The fixing member 28 is formed so that the diameter of the larger disc-shaped member is smaller than the inner diameter of the recess 97 of the plunger 95, and from the viewpoint of suppressing unintended deformation of the rubber member 25, the contacting rubber member is It is preferable that the diameter of the surface is greater than or equal to the diameter of the surface of 25. A hole through which a bolt 29 can be inserted is formed in the fixing member 28 at a position passing through the centroid of the disc-shaped member. Note that the fixing member 28 does not have a shape in which two disc-shaped members with different diameters are combined, but a single disc-shaped member (or It may be a cylindrical member). The fixing member 28 is typically made of aluminum, but may be made of a metal other than aluminum, such as stainless steel, or may be made of a material other than metal. The fixing member 28 is brought into contact with the tip of the tapered portion 26 of the rubber member 25 so that the hole through which the bolt 29 is inserted communicates with the hole formed in the rubber member 25 through which the bolt 29 is inserted. It is fixed to the rod body 22 together with the rubber member 25 by bolts 29 . A bolt 29 passing through a hole in the fixing member 28 and the rubber member 25 is fastened to a screw formed at the tip of the rod body 22. Since the rubber member 25 is fixed to the rod body 22 by the fixing member 28, it is possible to prevent the rubber member 25 from being left behind on the plunger 95 when the rod body 22 is moved in a direction away from the plunger 95. .

The drive mechanism 31 is a device that moves the rod 21 in the direction in which the axis of the syringe 91 held by the first arm 11 extends. In other words, the drive mechanism 31 is a drive device that moves the rod 21. In this embodiment, an air cylinder is used as the drive mechanism 31. In the drive mechanism 31, a disk-shaped piston 33 is housed in a hollow cylindrical cylinder 32. A piston rod 34 is attached to one surface of the disk-shaped piston 33. The piston rod 34 extends in the axial direction of the cylinder 32, passes through one end surface of the cylinder 32, and projects to the outside of the cylinder 32. Packing (not shown) is attached to the outer periphery of the piston 33 in contact with the inner wall of the cylinder 32 and the portion of the end surface of the cylinder 32 through which the piston rod 34 passes, and a space on both sides of the piston 33 inside the cylinder 32 is provided. is airtight. The piston rod 34 is connected at its end outside the cylinder 32 to the end of the rod body 22 on the opposite side to the side to which the rubber member 25 is attached. The piston rod 34 and the rod body 22 are connected so that their respective axes are connected. Further, the drive mechanism 31 includes a solenoid valve 35.

The solenoid valve 35 switches between supplying air supplied from an air source (not shown) to the head-side tube 36 and to the rod-side tube 38, and also controls the discharge of air within the cylinder 32. It is configured so that it can be done. The head side tube 36 is connected to the head side port 37 of the cylinder 32. The rod side tube 38 is connected to a rod side port 39 of the cylinder 32. The head side port 37 is formed in the cylinder 32 on the opposite side of the piston rod 34 from the position of the piston 33 when the piston 33 is farthest from the cartridge 90. The rod-side port 39 is formed in the cylinder 32 closer to the piston rod 34 than the position of the piston 33 when the piston 33 is closest to the cartridge 90. The drive mechanism 31 operates the solenoid valve 35 to supply air into the cylinder 32 from the head side port 37 and exhaust air from the cylinder 32 from the rod side port 39, thereby moving the rod 21 through the piston 33. It can be pressed against the cartridge 90 side. Further, the drive mechanism 31 operates the solenoid valve 35 to supply air into the cylinder 32 from the rod side port 39 and to discharge air from the cylinder 32 from the head side port 37, thereby allowing the rod to flow through the piston 33. 21 can be pulled out from the cartridge 90. The solenoid valve 35 is typically operated by the control device 60.

Returning to FIG. 1 again, the description of the discharge device 1 will be continued. In addition, in the following description, when referring to the configuration of the presser 20, reference will be made to FIG. 3 as appropriate. The presser 20 configured as described above is configured so that the axis of the rod body 22 coincides with the virtual extension of the axis of the syringe 91 when the cartridge 90 is held by the first arm 11. is attached to the first arm 11. In other words, the storage case (not shown) that holds the cartridge 90 is configured to hold the cartridge 90 at a position where the axis of the syringe 91 is on a virtual extension of the axis of the rod body 22. Then, the control device 60 can appropriately discharge the resin 99 from the cartridge 90 by operating the drive mechanism 31 at an appropriate timing while appropriately moving the arm 10 to press the rod 21 against the cartridge 90.

The pedestal 51 receives the workpiece W to which the resin 99 is applied. The work W is an object to which the resin 99 is applied, and is one form of an object to be applied. The pedestal 51 is typically a mounting table on which the workpiece W is placed, and preferably includes a fixing means (not shown) for fixing the mounted workpiece W. As an example of the fixing means, a claw piece for holding down the workpiece W may be provided, or a suction hole may be appropriately provided in the pedestal 51 so that the workpiece W can be vacuum-suctioned. In this embodiment, the pedestal 51 itself is fixed and does not move.

Continuing with reference to FIG. 4, a method for manufacturing a resin-coated workpiece in which the resin 99 is applied to the workpiece W will be described. The resin-coated workpiece described here is manufactured using the above-described discharge device 1. The following explanation of the method for manufacturing a resin-coated workpiece also serves as an explanation of the operation of the discharge device 1. In the following description, when referring to the configurations of the ejection device 1 and the cartridge 90, reference will be made to FIGS. 1 to 3 as appropriate.

In manufacturing the resin-coated workpiece, first, the cartridge 90 filled with the resin 99 is attached to the first arm 11 of the discharge device 1 (S1). At this time, the cartridge 90 is attached to the first arm 11 so that the discharge needle 92 faces the pedestal 51 and the axis of the syringe 91 and the axis of the rod body 22 are on the same imaginary straight line. Next, the workpiece W to be coated with the resin 99 is placed on the pedestal 51 (S2). If the pedestal 51 is provided with a fixing means (not shown), after placing the work W on the pedestal 51, the fixing means (not shown) prevents the work W from moving relative to the pedestal 51. Fix it. In addition, in FIG. 4, for convenience of explanation, after the cartridge 90 is mounted on the first arm 11 (S1), the workpiece W is placed on the pedestal 51 (S2), but the order is reversed and the workpiece W is placed on the pedestal 51 (S2). After the cartridge 90 is placed on the pedestal 51, the cartridge 90 may be attached to the first arm 11. However, in order to prevent something from coming into contact with the workpiece W when mounting the cartridge 90, as shown in FIG. 51 (S2).

After the cartridge 90 is attached to the arm 10 and the work W is placed on the pedestal 51, the resin 99 in the cartridge 90 is applied to the work W (S3). At this time, the control device 60 first moves the second arm 12 and the third arm 13 appropriately, and moves the cartridge 90 so that the discharge needle 92 is located above the position of the workpiece W to which the resin 99 is to be applied. Thereafter, the control device 60 moves the first arm 11 to bring the discharge needle 92 closer to the workpiece W. At this time, the distance between the tip of the discharge needle 92 and the surface of the workpiece W is preferably slightly larger than the thickness of the resin 99 to be applied. Note that the first arm 11 may be moved while the second arm 12 and the third arm 13 are moved. Once the cartridge 90 has been moved to the above-described position, the control device 60 operates the drive mechanism 31 to move the rod 21 toward the cartridge 90. When the rod 21 is moved in this manner, the plunger 95 is pushed by the rod 21 and moves toward the discharge needle 92, compressing the resin 99 filled in the syringe 91, and causing the resin 99 to be released from the discharge needle 92. Trying to get out. In this embodiment, since the resin 99 filled in the syringe 91 has a relatively high viscosity, the plunger 95 is pushed with a relatively large force in order to discharge the resin 99 from the discharge needle 92. In the present embodiment, since the rubber member 25 is provided at the tip of the rod body 22, when the plunger 95 is pressed by the rod 21, a part of the tapered portion 26 at the tip of the rubber member 25 is indented in the plunger 95. 97 and press the plunger 95. Since the rubber member 25 in contact with the plunger 95 is made of a material with an appropriate hardness and has an appropriate shape, it can absorb the pressing force of the rod body 22 and apply an appropriate pressing force to the plunger 95. Therefore, it is possible to prevent the plunger 95 from being damaged by the pressing force of the rod body 22, which could occur if the rubber member 25 is not provided. Furthermore, when the rubber member 25 presses the plunger 95, the rubber member 25 expands in the radial direction due to elastic deformation when it is compressed in the axial direction by the rod body 22. Due to the lateral strain caused by the compression of the rubber member 25 in the axial direction, the outer peripheral portion of the plunger 95 outside the recess 97 expands in the radial direction and is pressed against the inner wall of the syringe 91. Therefore, the degree of close contact between the syringe 91 and the plunger 95 increases, and leakage of the resin 99 from between the syringe 91 and the plunger 95 can be suppressed.

As described above, the discharge device 1 presses the plunger 95 with the presser 20 to discharge the resin 99 from the cartridge 90, and moves the arm 10 as necessary to apply the resin 99 to the required location of the workpiece W. When the application of the resin 99 to the workpiece W is completed, the control device 60 moves the arm 10 so that the cartridge 90 comes to a retracted position from above the pedestal 51 (a reference position typically located during standby). , the workpiece W coated with the resin 99 (resin-coated workpiece) is taken out from the pedestal 51 (S4). At this time, if the workpiece W is fixed to the pedestal 51 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 resin-coated workpiece is completed. When manufacturing of one resin-coated workpiece is completed, it is determined whether there is a workpiece W to which resin 99 is to be applied next (S5). If there is the next workpiece W, the process returns to the step (S2) of placing the workpiece W on the pedestal 51, and thereafter the above-described flow is repeated. If there is no next workpiece W, the production of the resin-coated workpiece is ended. If the resin 99 in the cartridge 90 runs out during the continuous production of a plurality of resin-coated workpieces, the cartridge 90 can be replaced with a new cartridge 90 in which the syringe 91 is filled with the resin 99. . At this time, the rod 21 inserted into the used cartridge 90 may be moved in a direction away from the cartridge 90 by the drive mechanism 31, and then replaced with a new cartridge 90. In this embodiment, since the rubber member 25 is fixed to the rod body 22 by the fixing member 28, when the rod 21 inserted into the used cartridge 90 is moved in the direction away from the cartridge 90, the rubber member 25 25 also leaves the plunger 95. Therefore, it is possible to prevent the rubber member 25 from remaining inside the syringe 91.

As explained above, according to the discharge device 1 according to the present embodiment, the rubber member 25 is provided at the tip of the rod body 22, and the rubber member 25 is made of a material with an appropriate hardness and has an appropriate shape. It is formed. Therefore, damage to the plunger 95 when discharging the resin 99 from the syringe 91 can be suppressed, and leakage of the resin 99 from between the syringe 91 and the plunger 95 can be suppressed. Furthermore, since the rubber member 25 is fixed to the rod body 22 by the fixing member 28, the rubber member 25 can be prevented from coming off from the rod body 22 when the rod 21 is pulled out from the cartridge 90.

In the above explanation, it is assumed that the drive mechanism 31 is a double-acting air cylinder, but it may be a single-acting air cylinder, or instead of the air cylinder, it may be a fluid pressure cylinder including hydraulic pressure, etc. It is also possible to move the rod 21 with the

In the above explanation, the resin 99 is discharged to an arbitrary position by fixing the pedestal 51 and moving the arm 10. However, it is assumed that the pedestal 51 is moved three-dimensionally with the arm 10 fixed. It is also possible to do this. Alternatively, both the arm 10 and the pedestal 51 may be configured to be movable. At this time, as long as the arm 10 and the pedestal 51 can move together in three dimensions, the movement of the arm 10 and/or the pedestal 51 may be limited to one or two dimensions.

In the above description, the ejection device 1 is used with the cartridge 90 provided from the outside attached, but it is also possible that the ejection device 1 includes the cartridge 90 as a component and is used while replenishing the resin 99. You can also use it as

In the above description, the resin discharging device and the method of manufacturing a resin-coated member according to the embodiment of the present disclosure have been explained using FIGS. 1 to 4 as examples, but the configuration, structure, number, arrangement, etc. of each part, Regarding the 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 within the scope of the present invention, as long as the gist of the present invention is included.

1 Discharge device 10 Arm (support)
20 Pressing machine 21 Rod 22 Rod body 25 Rubber member 28 Fixing member 31 Drive mechanism 51 Holder 90 Cartridge 91 Syringe 92 Discharge needle 95 Plunger 97 Hollow 99 Resin W Work (object to be coated)

Claims (6)

A resin discharging device that discharges resin contained in a cartridge,
The cartridge includes a syringe filled with the resin and having a discharge needle at its tip for discharging the filled resin, and a syringe that is filled with the resin while sealing the resin inside the syringe. an axially movable plunger;
The resin discharging device includes:
a support for supporting the syringe;
a presser that presses the plunger inside the syringe supported by the support,
The presser includes a rod that is movable in the axial direction of the syringe in contact with the plunger, and a drive mechanism that moves the rod in the axial direction,
The rod includes a rod body connected to the drive mechanism, and a rubber member provided at the tip of the rod body and in contact with the plunger,
The syringe has a main portion filled with the resin formed in a hollow cylindrical shape,
The plunger has a main portion having a cylindrical external appearance,
The rubber member is formed in a cylindrical shape, the outermost diameter of which is equal to or less than the inner diameter of the syringe and greater than or equal to the outer diameter of the main portion of the plunger.
Resin discharge device. The plunger has a recess formed at the end on the side in contact with the rod,
The rubber member is formed in such a size that a tip located closer to the plunger than the outermost diameter portion fits inside the recess formed in the plunger.
The resin discharging device according to claim 1 . The rubber member has a hardness in the range of Shore A40 to Shore A70.
The resin discharging device according to claim 1 or 2 . The rod has a fixing member that fixes the rubber member to the rod body.
The resin discharging device according to any one of claims 1 to 3 . comprising a pedestal for receiving an object to be coated with the resin discharged from the cartridge;
The resin discharging device according to any one of claims 1 to 4 . A method for manufacturing a resin-coated object in which the resin discharged by the resin discharging device according to any one of claims 1 to 5 is applied to the coating target,
placing an object to be coated with the resin on a pedestal;
applying the resin discharged from the resin discharge device to the coating target placed on the pedestal;
a step of taking out the object to be coated with the resin from the pedestal;
A method for manufacturing a resin-coated object.