JP2011041926A - Turn table type ejection machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a turn table type ejection machine which is improved so as to allow the machine to respond to diversification of the size, shape, etc. of an object and so as to reduce an evil influence caused by attachment of ejected material to a body besides the object. <P>SOLUTION: The turn table type ejection machine includes: an operation table 3 which performs intermittent rotation drive; a plurality of object set parts 4 which are circumferentially disposed at equal intervals in the circumferential direction of the operation table 3 and cause the object (work W) to rotate on its own axis while retaining the object; an elevating/lowering base 6b which vertically moves through a central opening part 3f of the operation table 3; and an ejection gun moving mechanism 9 for making an ejection gun 5 which is arranged on the elevating/lowering base 6b and has an ejection direction F of the ejected material with respect to one of objects in the object set part 4 freely movable to the ejection direction F, wherein, with respect to the object arriving at an ejection position T in such a state that the operation table 3 is temporarily stopped, the ejection is performed while elevating/lowering the ejection gun 5 in such a state that the ejection gun 5 is moved up to a prescribed distance. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a turntable type injector used for injecting an injection product onto an object as an article.

  As a device used for painting the surface of a workpiece as an article, a rotating table that is rotationally controlled is intermittently driven, and the workpiece is circumferentially rotated while rotating the workpieces arranged at equal angular intervals in the circumferential direction of the rotating table. There is known a rotary type coating apparatus which is temporarily stopped at a predetermined position and a paint is applied to the work surface by a spray gun at this position (see Patent Document 1).

JP-A-2005-125161

  The spray gun in this prior art is designed to move up and down, which is the direction along the center axis of the work of the rotary table, to coat the upper and lower surfaces and sides of the work surface. Is set so that an optimum coating can be obtained for a specific (single type) workpiece in order to increase work efficiency. However, when painting a workpiece with a small amount of workpiece and a different shape, or when the shape of the workpiece to be painted is complex, simply moving the spray gun up and down will cause the difference in distance between the spray gun and the workpiece surface. As a result, there is a decrease in quality due to variations in the amount of paint applied to the workpiece surface, and a proposal for solving these problems is desired.

  The problem of the present invention is improved to cope with the diversification of the size and shape of the object as an article and to reduce the harmful effects caused by the injection of the spray injected from the spray gun other than the target. It is to provide a turntable type injector.

  In order to solve the above-described problems, a turntable type injector of the present invention includes a disk-shaped work table that intermittently rotates in a predetermined direction at a predetermined angle, and the predetermined angle in the circumferential direction near the periphery of the work table. And a plurality of target set parts that are rotated at regular intervals and rotate while holding the target object, and the center opening of the work table in the inner area of the peripheral target set part. An elevating base that is disposed on the elevating base, and an injection gun having an injection direction of the ejected material with respect to one of the objects held by the object setting unit on the work table. In a state where the table is temporarily stopped during intermittent rotation driving, one position of the plurality of object setting portions is set as an injection position, and the injection gun injects the injection object onto the object rotating at the injection position. In addition, an injection gun moving mechanism is provided between the elevating base and the injection gun arranged on the elevating base for moving the injection gun toward the object to be injected with an injection. The spray gun is moved by the spray gun moving mechanism to a position optimal for spraying with respect to the shape of the object, and sprays the spray.

  By adopting the above configuration, the object placed on the object set unit moves in the circumferential direction, and corresponds to the size and form of the object when injecting the object to the object in the state of reaching the injection position. And since the injection object can be injected by optimally adjusting the injection distance between the object and the injection gun, it is possible to cope with the diversification of the object. And if it comprises so that an injection distance may be adjusted, for example with a feed screw mechanism, the turntable type injector which can adjust an injection distance even while the injection gun raises / lowers can be provided.

  Further, in order to solve the above-mentioned problems, the injection gun of the turntable type injector of the present invention is a single one, and the injection direction can be changed from diagonally upward to diagonally downward. By doing so, the injection direction can be changed during the raising and lowering of the injection gun, so that the injection can be appropriately injected onto the upper surface, the side surface, and the lower surface as the outer surface of the object. In addition, since the injection direction can be changed from diagonally upward to diagonally downward, it can also be adjusted to the injection direction corresponding to the complex outer surface shape of the object. Furthermore, for example, in a state where the injection gun is stopped at a fixed position, the injection object can be injected to the object while swinging the injection direction between the obliquely upward and obliquely downward directions.

  In order to solve the above problems, the spray gun moving mechanism of the turntable type injector of the present invention has a fixed base disposed on the lift base, and the fixed base is a central opening of the work table. A moving base that is movable along the injection direction is provided on the fixed base via a linear guide composed of a guide rail and a slider that makes the guide rail movable. The spray gun is provided with a jet port at the tip of the gun positioned outside the fixed base and the outer edge of the moving base, closer to the object set portion. In addition to the ejected product that is ejected toward the product, the ejected product that drops excessively from the ejection port can be only on the surface side of the work table. As a result, it is possible to prevent extra spray from adhering to the components (guide rails, sliders, etc.) of the injection gun moving mechanism, and the movement function of the injection gun is maintained well.

  In order to solve the above-mentioned problem, the object set portion of the turntable type injector of the present invention has a rotation support shaft, and the rotation support shaft is rotatably supported by a bearing member provided on the work table. The rotating support shaft is extended to the lower side of the work table, and a disk-shaped driven rotating disk body made of rubber is attached to the extending portion, and the object setting portion is disposed at the injection position. In this state, a rotation drive source having a drive rotation member that presses against the outer periphery of the driven rotation disk body is provided, so that the object set portion reaches the injection position and the driven rotation disk is The impact when the body comes into contact with the drive rotating member is small, and the mounting position of the object is not displaced, and slippage between the object and the drive rotating member hardly occurs, which is suitable for the rotation of the object. .

  Moreover, in order to solve the said subject, the said target object setting part of the turntable type injector of this invention has the mounting base board which mounts the said target object, The plane projection area of this mounting base board is The target object set portion is jetted onto the object held on the mounting base plate by making the area larger than the planar projection area of the bearing member that holds the rotating support shaft. Even if a part of the sprayed product falls from the target object onto the mounting base plate, this sprayed product does not reach the bearing member, so it does not affect the rotation function of the bearing member. Since the object rotation function is not impaired, the rotation of the object is stabilized, which is useful for stabilizing the injection quality.

  Further, in order to solve the above-mentioned problem, in the turntable type injector of the present invention, a filter portion for collecting a mist-like spray is disposed in front of the injection direction of the injection gun. By doing so, it is possible to prevent the sprayed mist from scattering to the surroundings and maintain a good working environment. Moreover, the said filter part can change the filter unit with which the filter member which collects a mist-like injection thing was mounted | worn freely, The maintenance property of a filter part can be made favorable.

It is a partial cross section side view of the turntable type injector which concerns on this invention. It is a top view of a turntable type injector same as the above. It is an expanded sectional view of a subject set part. It is a schematic diagram of the contact state of a driven rotation disc body and a drive pulley. It is a side view of the swing mechanism of a single injection gun. It is a side view of a pair of injection gun. It is sectional drawing of the attachment location of a lock lever. It is a side view of a feed screw mechanism. It is a block diagram of the connection relation between a control device and each component. It is a schematic side view of a turntable type injector provided with a filter part. It is a schematic plan view of a turntable type injector same as the above. It is a front view of the filter unit of a filter part. It is a top view of a filter unit same as the above. It is a schematic plan view of the filter unit mounted state. It is a schematic side view of the exchange state of a filter unit same as the above.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially sectional side view of a turntable type coating machine (turntable type sprayer) according to the present invention, and FIG. 2 is a plan view of the turntable type coating machine. In FIG. 1 and FIG. 2, the turntable type coating machine 1 is, for example, an ejected material for protecting, decorating, sterilizing or disinfecting the outer surface W1 of a workpiece W (object) as an article. Is to inject.

  The turntable type coating machine 1 includes a disk-shaped work table 3 that is intermittently rotationally driven in a predetermined direction at a predetermined angle provided at an upper portion of the machine frame 2, and the circumferential direction near the periphery of the work table 3 at a predetermined angle. A spray gun raising / lowering mechanism 6 (moving and lowering) a work set unit 4 (target set unit) provided around each interval and a spray gun 5 (spray gun) for applying paint as an example of a spray to the work W. Injection gun lifting mechanism).

  The work table 3 includes a table body 3a formed in a disk shape, and an annular table bearing member serving as a bearing member is provided between the lower surface of the center side of the table body 3a and the upper surface of the receiving plate 2a in the upper part of the machine frame 2. 3b is interposed. The work table 3 is rotatable by the table bearing member 3b.

  The work table 3 is rotationally driven by a table rotational drive mechanism 7. The table rotation drive mechanism 7 includes a fixed gear 7a provided on the lower surface of the table body 3a and a drive gear 7d fixed to a drive shaft 7c of a first drive motor 7b as a rotation drive source fixed to the machine frame 2 side. The drive gear 7d and the fixed gear 7a are meshed with each other. Then, the work table 3 is rotationally driven in a certain direction by the rotation of the first drive motor 7b. The table bearing member 3b is held and fixed so that the upper side of the outer diameter side is pressed by the annular pressing member 2a2 in a state where the outer diameter side is held by the stepped portion 2a1 formed at the center of the receiving plate 2a. Has been. The inner diameter side of the table bearing member 3b is held and fixed by an annular inner diameter holding ring 7a1 mounted on the inner diameter side of the fixed gear 7a, and the inner diameter holding ring 7a1 is connected to the fixed gear 7a.

  The work table 3 is provided with a plurality of positioning detection plates 3d for intermittently rotating the work table 3 in a fixed direction at a predetermined angle. The detection plate 3d is provided in the circumferential direction at the periphery of the lower surface of the table body 3a of the work table 3. The number is made to correspond to (the same number as) the number of work set units 4.

  Then, in order to intermittently drive the work table 3 and apply the paint by the spray gun 5 to the work W, the photo work is performed so that the work table 3 is temporarily stopped at an application position T (spraying position) arbitrarily set. A sensor 3e is provided. The photosensor 3e utilizes the characteristics of light, and outputs a detection signal when the detection plate 3d moves between a light emitting element and a light receiving element (not shown).

  Next, the work set unit 4 provided in a plurality in the circumferential direction of the table main body 3a of the work table 3 has eight locations in the present example at regular intervals at predetermined angles in the circumferential direction near the peripheral edge of the table main body 3a. Provided.

  The work set part 4 is fitted into a plurality of recesses 3c formed in the circumferential direction of the table body 3a, and has a bearing 4a as a bearing member. Specifically, as shown in FIG. 3, the fixing member is formed in a ring shape as a whole, an inner flange portion 4b2 is formed at the upper end of the cylindrical portion 4b1, and an outer flange portion 4b3 is formed at the lower end of the cylindrical portion 4b1. The bearing 4a is fixed via 4b. That is, a part (lower side) of the bearing 4a is fitted into the recess 3c. In this state, the outer flange portion 4b3 is fixed to the table body 3a so that the inner flange portion 4b2 of the fixing member 4b presses the outer peripheral edge on the upper side of the bearing 4a.

  A rotating support shaft 4d is inserted and fixed in the central shaft hole 4c of the bearing 4a. A work holding portion 4e is detachably provided on the upper end side of the rotating spindle 4d.

  This work holding part 4e has a work receiving part 4f as a mounting base plate formed in a disk shape. The planar projection area of the workpiece receiving portion 4f is formed larger than the planar projection area of the bearing 4a. If this bearing 4a is seen from a plane, it will be covered with the workpiece receiving part 4f. This shields the paint sprayed from the spray gun 5 and prevents the paint from adhering to the bearing 4a, so that the rotation function is not deteriorated.

  A protrusion 4g into which the recess W2 of the workpiece W is fitted is formed on the upper surface of the workpiece receiving portion 4f. The protrusion 4g has a function of rotating the workpiece W together with the workpiece receiving portion 4f and holding the workpiece W so as not to be misaligned. As shown in the figure, the work W has a cylindrical shape, but the work W includes fruits (apples, mandarin oranges, etc.) and other foods such as confectionery (eg, Japanese confectionery buns). be able to. In the case of these workpieces W, an attachment 4m corresponding to the shape of the workpiece W is produced on each of the protrusions 4g, and the attachment 4m is detachably mounted and used as a mounting place for the workpiece W. It will be.

  The work set unit 4 includes a work set rotation drive mechanism 4k for rotating the work W. The work set rotation drive mechanism 4k extends to the lower side of the work table 3. A driven rotating disk 4h is attached as a lower end side as an extending portion of the rotating spindle 4d. The driven rotating disk body 4h is formed in a disk shape, and the material thereof is made of rubber as an elastic member.

  Then, the plurality of work set portions 4 rotate in the circumferential direction, and the driven rotating disk body 4h is rotated in a state where one of the workpiece setting portions 4 has reached the coating position T set at an arbitrary position. As a specific example, a single drive pulley 2b is provided on the machine frame 2 side as a drive rotary member that comes into contact with and is in pressure contact with the driven rotary disc body 4h. The drive pulley 2b is connected to a second drive motor 2d as a rotation drive source having a rotation shaft 2c. The second drive motor 2d is fixed to the motor base 2d1, and the motor base 2d1 is slidable on the receiving plate 2a of the machine frame 2 in the direction of the arrow X toward the driven rotating disk 4h located at the painting position T. It is installed like so.

  Further, as shown in FIG. 4A, the power transmission state by the pressure contact between the driven rotating disk body 4h and the drive pulley 2b is a straight line connecting the rotation center C1 of the work table 3 and the rotation center C2 of the drive pulley 2b. The motor base 2d1 (see FIG. 3) is adjusted to the slide position in the arrow X direction so that maximum power transmission is performed in a state where the rotation center C3 of the driven rotating disk 4h has reached the painting position T above. The pressure contact state is set.

  In this setting, since the driven rotating disk body 4h is made of rubber as an elastic member, when the driven rotating disk body 4h approaches the driven pulley 2b, the driven rotating disk body 4h before elastic deformation is formed. Is the maximum diameter state, and therefore the initial contact state in contact with the conical surface 2e of the drive pulley 2b on the upstream side in the rotational direction, that is, the driven rotating disk body 4h illustrated by the broken line in FIG. As a contact state between the outer periphery and the conical surface 2e of the drive pulley 2b, as shown in (b) of FIG. 4B, the amount of elastic deformation of the driven rotating disk body 4h is small (power transmission rate is small), which is further As shown in FIG. 4 (b), the contact state between the outer periphery of the driven rotating disk 4h and the conical surface 2e of the drive pulley 2b shown by the solid line in FIG. As shown, the amount of elastic deformation is large (the power transmission rate is large). It becomes maximum at will paint position T. 4B shows a state before the outer periphery of the driven rotating disk body 4h comes into contact with the conical surface 2e of the drive pulley 2b.

  Thus, the rotation of the driven rotating disk 4h related to the rotation of the workpiece W is not the moment when it reaches the painting position T, but the rotation rises smoothly from the stage approaching the painting position T. Therefore, the workpiece setting unit 4 Reaches the painting position T and the impact when the driven rotating disk 4h comes into contact with the drive pulley 2b is small, and the placement position of the workpiece W is not displaced, and the sliding with the drive pulley 2b is not caused. Is suitable for the rotation of the workpiece W. Further, since the drive pulley 2b has a conical surface 2e forming a substantially V-shaped groove, even in the case where the material of the driven rotating disk body 4h is made of rubber, the driving pulley 2b is arranged in the thickness direction of the outer periphery of the driven rotating disk body 4h. There is an advantage that it is difficult to come off from the substantially V-shaped groove of the drive pulley 2b even by elastic deformation. Further, the drive pulley 2b and the driven rotary disk body 4h can be replaced with each other, and the drive pulley 2b connected to the second drive motor 2d is replaced with the driven rotary disk body 4h. A rotary drive member (not shown) can also be used. In this case, the material of both members may be made of rubber, or one of them may be metal or a synthetic resin having mechanical strength.

  Returning to FIG. 1, the spray gun elevating mechanism 6 has an elevating mechanism 6 a that passes through the work table 3 in the inner region of the plurality of work set portions 4 that are provided around. The elevating mechanism 6a includes an elevating base 6b that moves up and down, and a cylinder 6c that uses pneumatic pressure as a linear motion actuator connected to the elevating base 6b.

  The elevating base 6b is a metal plate material that can pass through a central opening 3f that is formed in the center side of the table main body 3a of the work table 3 in the inner region of the work set unit 4 that is provided in the circumferential direction. Is formed into a square plate shape. A rod 6d of a cylinder 6c is connected to the elevating base 6b. The cylinder 6 c is fixed to a mounting plate 2 f that is fixed to the machine casing 2.

  Further, when the elevating base 6b is moved up and down by the cylinder 6c, a rectilinear guide 6e is provided to ensure straightness in the moving direction. The linear guide 6e has a guide bar 6g inserted through a guide bush 6f fixed to the mounting plate 2f, and the upper end of the guide bar 6g is connected and fixed to the elevating base 6b.

  The elevating mechanism 6a can be set by the positioning mechanism 8 so that the highest point P1 and the lowest point P2 of the elevating base 6b correspond to the length of the workpiece W in the vertical direction. As shown in FIG. 1, the positioning mechanism 8 is provided with a detection piece 8a that moves up and down in accordance with the raising and lowering of the guide bar 6g. On the other hand, the photosensor 8c is attached to the support bar 8b provided along the raising / lowering direction corresponding to the position of the highest point P1 and the lowest point P2. The photosensor 8c is fixed to the support bar 8b by fastening means such as a set screw (not shown) provided on the vertical moving body 8d side, and ratchet teeth (not shown) are formed on the support bar 8b side. In addition, a ratchet claw (not shown) that meshes with the teeth is provided on the vertical moving body 8d side to constitute a ratchet mechanism, and the photosensor 8c can be slid in the vertical direction and fixed at any position using this ratchet mechanism. It can also be provided. The upper end of the support bar 8b is connected and fixed to the mounting plate 2f, and the lower end is connected and fixed to the machine casing 2. Further, the photosensor 8c can be disposed at at least one intermediate point P3 as an arbitrary position between the highest point P1 and the lowest point P2. This photosensor 8c also uses the characteristics of light, and outputs a detection signal when the detection piece 8a moves between a light emitting element and a light receiving element (not shown).

  The spray gun 5 in the spray gun lifting mechanism 6 is disposed on the lifting base 6b. And the injection direction F of the coating material with respect to one of the workpiece | work W of the workpiece | work set part 4 is given. Further, a spray gun moving mechanism 9 is provided that is movable back and forth with respect to the injection direction F.

  The spray gun moving mechanism 9 has a fixed base 9m formed in a rectangular plate shape by a metal plate fixed on the lift base 6b, and the fixed base 9m is the center of the work table 3 formed to pass the lift base 6b. It is formed in a size that cannot pass through the opening 3f. A pair of guide rails 9a are fixed in parallel on the fixed base 9m. A plurality of (two in this example) sliders 9b are mounted on the guide rail 9a, and a movable base 9c is formed by a metal plate connected to the slider 9b. Yes.

  A fixed block 9d for mounting the spray gun 5 is provided on the moving base 9c. A single component is used as the spray gun 5 mounted on the fixed block 9d. In addition, the spray gun 5 has an outlet 5a at the tip of the gun positioned outside the outer edge 9c1 of the moving base 9c and the outer edge 9m1 of the fixed base 9m closer to the work set unit 4.

  Moreover, as a mounting mode of the spray gun 5 as a single component to the fixed block 9d, as shown in FIG. 5, the spray gun 5 can be mounted via a swing mechanism 10 provided on the fixed block 9d. The swing mechanism 10 can use a stepping motor 10b having a rotary positioning shaft 10a. The stepping motor 10b is a motor whose angle moves by a pulse angle determined by the motor in accordance with the pulse signal, and the position can be controlled by the pulse signal. Moreover, it can be stopped at a certain rotation angle according to the number of pulses. With this swing mechanism 10, the spray gun 5 can change its spraying direction F from diagonally upward to diagonally downward.

  Further, as another example of the spray gun 5, as shown in FIG. 6, a spray gun 5 having an injection direction F obliquely upward and a pair of upper and lower spray guns 5 having an injection direction F obliquely downward are fixed blocks 9d. It can also be attached to.

  As in the present example, the automatic painting spray gun 5 uses an automatic spray gun that turns on / off the spraying of paint by stopping the supply of working air. In this automatic spray gun, although not shown in the figure due to the stop of the supply of working air, the air piston moves the needle valve, and the flow of the paint is controlled by moving the needle valve back and forth.

  Further, a lock lever 9e is rotatably attached to the moving base 9c. As shown in FIG. 7, the lock lever 9e has a male screw portion 9h for fastening at a lower portion of a support shaft 9g extending from the lever main body 9f. The support shaft 9g penetrates the moving base 9c, and the male screw portion 9h is screwed into an engaging member 9k that is movable in a connecting groove 9j formed in the fixed base 9m. .

  The connecting groove 9j is a groove having a convex cross-sectional shape, and is a groove having a groove width that opens downward with respect to the groove width through which the support shaft 9g penetrates on the moving base 9c side. Then, the movable base 9c is fastened and fixed to the fixed base 9m by pulling and tightening the engaging member 9k to the wide groove surface of the connecting groove 9j by the turning operation of the lock lever 9e.

  Further, as shown in FIG. 8, a feed screw mechanism 11 can be connected to the moving base 9c. In the feed screw mechanism 11, the nut member 11a is fixed to the moving base 9c. A feed screw shaft 11b is inserted and screwed into the nut member 11a. A third drive motor 11c is connected as a rotational drive source connected to the feed screw shaft 11b and fixed to the fixed base 9m.

  The operation of the turntable type coater will be described. First, as the intermittent rotation drive of the work table 3, as shown in FIGS. 1, 2, and 9, the first drive motor 7b of the table rotation drive mechanism 7 is driven and controlled by the control device 12, and the work table 3 is kept constant. Rotate in the direction. The work set unit 4 provided on the work table 3 moves in the circumferential direction by the rotation of the work table 3.

  In this state, when the same number of detection pieces 3d corresponding to the work set units 4 reach the position of the photosensor 3e, the photosensor 3e outputs a detection signal.

  Based on this detection signal, the control device 12 performs control to stop the driving of the first drive motor 7b, whereby the rotation of the work table 3 is stopped. When a predetermined time that takes into account the replacement of the workpiece W, the coating time, and the like has passed, the control device 12 drives the first drive motor 7b again to rotate the work table 3 again. By repeating such operation control, the work table 3 is intermittently driven.

  The control device 12 uses a microcomputer. Since the configuration of this microcomputer is well known, detailed description thereof is omitted, but it includes an I / O port, a CPU, a ROM, and a RAM, which are connected by a bus. Of the ROM and RAM functioning as the storage unit, the ROM stores various known programs for control necessary for calculations and the like.

  Next, as a painting process of the workpiece W, in the work table 3 controlled to be intermittently driven by the control device 12, the workpiece receiving unit 4f serving as a mounting base plate of the workpiece setting unit 4 is subjected to the painting process. In the initial setting, the unpainted work W is sequentially placed, and in a state where the painting process is continued, the work W to which the paint has already been applied is lowered and a new unpainted work W is placed. As shown in FIG. 2, the work W can be placed at an arbitrary position downstream of the painting position T in the rotation direction and before reaching the painting position T, as shown in FIG. 2.

  And if the control apparatus 12 judges based on the detection signal from the photosensor 3e that the workpiece | work W mounted on the workpiece | work set part 4 moved to the circumferential direction and reached | attained the coating position T, the coating position T side will be beforehand shown. The spray of paint is performed from the spray gun 5 in which the spray direction F of paint is set. The spray gun 5 at this time optimally adjusts the coating distance between the workpiece W and the spray gun 5 in accordance with the size and form of the workpiece W in a state where the restraint of the moving base 9c by the lock lever 9e is released. Then, the spray gun 5 can be applied in a state where the spray gun 5 is positioned by operating the lock lever 9 at that position.

  Further, for such manual positioning, as shown in FIG. 8, by having the feed screw mechanism 11, the third drive motor 11 c of the feed screw mechanism 11 is controlled by the control device 12 when the spray gun 5 injects the paint. By controlling the drive, the application distance between the workpiece W and the spray gun 5 can be adjusted in advance, or the distance can be applied while automatically adjusting this distance.

  The spraying of the paint by the spray gun 5 is performed in a state where the workpiece W placed on the workpiece setting unit 4 rotates. When the workpiece set 4 reaches the coating position T, the rotation of the workpiece W comes into contact with the driven rotating disk body 4h in the pressure contact state driven by the driving pulley 2b driven by the second driving motor 2d. The rotation of the pulley 2b is transmitted to the workpiece receiving portion 4f (mounting base plate) of the workpiece setting portion 4, and the workpiece W placed on the workpiece receiving portion 4f rotates.

  In this painting state, the spray gun 5 is raised and lowered by the cylinder 6 c of the spray gun lifting mechanism 6 controlled by the control device 12. This up-and-down control can be made to reciprocate up and down in this up-and-down range by setting the lowest point P2 and the highest point P1 in the raising and lowering of the spray gun 5 in advance corresponding to the vertical length of the workpiece W. The application process is performed while moving in one direction such as upward movement or downward movement. Moreover, the movement form of the spray gun 5 can be further changed by setting the intermediate point P3. For example, it is possible to move (including reciprocation and one-way movement) between the intermediate point P3 and the lowest point P2 or the highest point P1.

  Further, the vertical movement of the spray gun 5 is based on the detection signal from the photosensor 8c that the detection piece 8a of the positioning mechanism 8 has reached the lowest point P2, the highest point P1, and the intermediate point P3. The control device 12 judges and controls the movement.

  In addition, the spray gun 5 controls the driving of the stepping motor 10b of the swing mechanism 10 by the control device 12, thereby changing the injection direction F to be obliquely upward or obliquely downward during movement during ascending / descending. A paint can be applied to W. By using the swing mechanism 10, for example, the spray gun 5 is stopped at a fixed position at the intermediate point P 3, and the spray direction F of the paint is moved between the diagonally upward and diagonally downward directions by the swing mechanism 10. However, the paint can be applied to the workpiece W.

  The spray gun 5 has a spray port 5a at the tip of the gun located on the outer side of the fixed base 9m of the spray gun moving mechanism 9 and the outer edge of the moving base 9c closer to the work set unit 4, so that the spray gun 5 In addition to the paint sprayed toward W, the paint dripping from the jet nozzle 5 a can be only on the surface side of the table body 3 a of the work table 3. As a result, it is possible to prevent excessive paint from adhering to the components (guide rail 9a, slider 9b, etc.) of the spray gun moving mechanism 9, which is preferable without impairing the moving function of the spray gun moving mechanism 9.

  Moreover, the filter part 13 for collecting the mist-like paint (mist-like injection thing) as an unattached paint among the paints injected toward the workpiece | work W from the spray gun 5, and exhausting the purified air is provided. You can also This filter part 13 is arrange | positioned in the front side of the injection direction F of the coating material injected toward the workpiece | work W of the coating position T from the spray gun 5, as shown in FIG. 10, FIG. The front side of the filter unit 13 is open toward the spray gun 5 and is formed of a hollow box-like main body 13a. A filter unit 13b for collecting mist paint is disposed on the front side of the main body 13a. In addition, a suction fan 13d that is rotated by a fan motor 13c for sucking the mist paint into the main body 13a is disposed.

  The filter unit 13 sucks mist paint as an unsprayed paint for the overspray of the paint sprayed from the spray gun 5 toward the workpiece W by the suction action of the suction fan 13d, and the filter member of the filter unit 13b. 13e is collected by bringing the mist paint into contact therewith. Further, examples of the filter member 13e include a non-woven fabric having air permeability, a urethane foam sheet, and a HEPA filter.

  As a specific structure of the filter unit 13b of the filter unit 13, as shown in FIG. 12, a pair of filter frame bodies 13f are opened and closed in a door shape by a hinge member 13g on one side, and the two filter filters The filter 13e is sandwiched between the frame bodies 13f. Then, as shown in FIGS. 13 and 14, the filter unit 13b is detachably mounted so as to slide up and down in a slide mounting groove 13h provided on the front open side of the hollow box-shaped main body portion 13a. Is done.

  The supply tank 14 for supplying the paint to the spray gun 5 is connected to the spray gun 5 by a flexible supply tube 14a, and the supply tank 14 is a column erected from the receiving plate 2a of the machine frame 2. 14b (see FIGS. 10 and 11).

  Although the turntable type coating machine has been exemplified in the above description, the present invention can be applied not only to the coating machine but also to an injection device that injects a predetermined injection. For example, an injection device that injects a rust preventive agent such as synthetic oil instead of a paint onto the workpiece W, an injection device that injects a preservative if it is food, or an injection device that injects a disinfectant or disinfectant onto the workpiece W In addition, the present invention can be applied to an injection device that injects an injection such as a liquid, powder, or particles onto a predetermined workpiece W.

  As mentioned above, although embodiment of this invention is described, this invention is not limited to said embodiment, A various change is possible based on the technical idea of this invention.

1 Turntable coating machine (injector)
2b Drive pulley 2d Second drive motor (rotation drive source)
3 Work table 4 Work set part (object set part)
4a Bearing (bearing member)
4h Driven rotating disk body 4f Work receiving part (mounting base plate)
5 Spray gun
6 Spray gun lifting mechanism (spray gun lifting mechanism)
6b Lifting base 9 Spray gun moving mechanism (spray gun moving mechanism)
9a Guide rail 9b Slider 9c Moving base 9m Fixed base 13 Filter unit 13
13b Filter unit 13e Filter member 13f Filter frame F Injection direction W Workpiece (object)
T Painting position (spraying position)

Claims (7)

A disk-shaped work table that intermittently rotates in a fixed direction at a predetermined angle;
A plurality of object set portions that are circumferentially arranged at equal intervals in the circumferential direction near the periphery of the work table, and rotate while holding the object;
An elevating base that elevates and lowers through a central opening of the work table in an inner region of the object set portion that is provided around,
An injection gun disposed on the elevating base and having an injection direction of an injection with respect to one of the objects held by the object set unit on the work table;
In a state where the work table is temporarily stopped during intermittent rotation driving, one position among the plurality of object setting portions is set as an injection position, and the injection gun injects an injection object onto the object rotating at the injection position. ,
Between the lifting base and the spray gun arranged on the lifting base, an injection gun moving mechanism for moving the spray gun toward the object to be sprayed,
The turntable type injector, wherein the injection gun is moved to an optimum position for injection with respect to the shape of the object by the injection gun moving mechanism to inject the injection.   2. The turntable type injector according to claim 1, wherein the injection gun is a single one, and the injection direction can be changed from diagonally upward to diagonally downward.   The spray gun moving mechanism has a fixed base disposed on the elevating base, and the fixed base is formed in a size that cannot pass through a central opening of the work table, and a guide rail is provided on the fixed base. And a moving base that is movable along the injection direction via a linear guide composed of a slider that enables the guide rail to move, and the injection gun has an outlet at the tip of the gun, the fixed base and 3. The turntable injector according to claim 1, wherein the turntable injector is located on an outer side closer to the object setting portion than an outer edge of the moving base. The object setting portion has a rotation support shaft, and the rotation support shaft is rotatably supported by a bearing member provided on the work table. The rotation support shaft extends to the lower side of the work table. At the exit, a disc-shaped driven rotating disc body made of rubber is attached,
The rotation drive source which has a drive rotation member which press-contacts to the outer periphery of the said driven rotation disc body in the state in which the said target object set part reached | attained the said injection position is provided. The turntable type injector according to item 1.   The object setting unit includes a mounting base plate on which the object is mounted, and a planar projection area of the mounting base plate is a plane of the bearing member that holds the rotating support shaft of the object setting unit. The turntable injector according to any one of claims 1 to 4, wherein the turntable injector is larger than a projected area.   The turntable type injector according to any one of claims 1 to 5, wherein a filter portion that collects a mist-like injection is disposed in front of the injection direction of the injection gun. .   The turntable type injector according to claim 6, wherein the filter unit is configured to freely replace a filter unit on which a filter member that collects mist-like ejected matter is mounted.

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