JP5830387B2 - Transfer roll changer - Google Patents

Description

  The present invention relates to a transfer roll exchanging apparatus used when a transfer roll provided in a transfer apparatus of a printing apparatus or a coating apparatus is attached to or detached from the transfer apparatus.

  2. Description of the Related Art Conventionally, a transfer device used in a printing device or a coating device includes a transfer roll that is rotatably supported on the device fixing side, and the transfer device is arranged on the outer peripheral surface of the transfer roll on a material to be transferred. Printing or coating is performed by transferring the adhering transfer liquid by a rotating operation.

  By the way, when changing a picture or the like to be transferred by the transfer device, it is necessary to replace the transfer roll. For example, in the printing apparatus disclosed in Patent Document 1, a plurality of transfer apparatuses each provided with a plate cylinder as a transfer roll are arranged side by side. On the other hand, the plate cylinder is carried in and out by a carriage. The carriage has a raising / lowering part that raises and lowers the mounted plate cylinder. First, the raising / lowering part in a state in which an empty carriage is entered from the upstream side in the feeding direction of the transfer material to the lower side of the plate cylinder attachment position. After the used plate cylinder is received and lowered from the plate cylinder mounting position at the rising end position, the carriage moves the carriage to the downstream side in the feeding direction of the transfer material to remove the used plate cylinder. It comes to carry out. Next, after the carriage is entered from the upstream side in the feeding direction of the transfer material and a new plate cylinder is carried in, the elevator is raised and the new plate cylinder is delivered to the plate cylinder mounting position at the rising end position to transfer the plate. The replacement of the trunk is finished.

JP-A-60-105543 (page 3, FIGS. 5 and 6)

  However, in the case of Patent Document 1, since the plate cylinder is carried in / out below the plate cylinder mounting position of the transfer device from the upstream side and the downstream side in the transfer material feeding direction of the transfer device, the transfer material feeding of the transfer device is performed. A space for the carriage is required on the upstream side and the downstream side in the direction, and other facilities cannot be installed in the space.

  In addition, since the transfer device in the coating device has the same structure as that of Patent Document 1, the same problem as described above occurs.

  The present invention has been made in view of such a point, and an object of the present invention is to provide a transfer roll that can effectively use the space on the upstream side and the downstream side of the transfer material supply direction of the transfer device in the printing device or coating device. It is to provide an exchange device.

  In order to achieve the above object, the present invention provides a carriage positioning means for positioning a carriage for carrying in / out a transfer roll so as not to move below the transfer roll attachment position of the transfer device, and the carriage enters below the transfer roll attachment position. And a roll positioning means for positioning the transfer roll on the carriage so that the transfer roll can be attached to the transfer device.

  Specifically, in the transfer roll exchanging apparatus used when the transfer roll provided in the transfer apparatus of the printing apparatus or the coating apparatus is attached to or detached from the transfer apparatus, the following solution is taken.

  That is, according to the first aspect of the present invention, the transfer roll is introduced from the side below the transfer roll mounting position of the transfer device to carry in the side, while the transfer roll is retracted from the lower side of the transfer roll attachment position to carry out the transfer roll. Roll lifting means for supporting the transfer roll to move up and down to transfer the transfer roll between the transfer roll mounting position and the transfer roll mounting position below the transfer roll mounting position when the transfer roll is replaced. A carriage positioning means for positioning the carriage that has entered below the transfer roll attachment position so as not to move below the transfer roll attachment position by a linkage operation with the apparatus fixing side; and Provided so that the transfer roll on the carriage can be attached to the transfer device when the carriage enters below the transfer roll attachment position. Wherein the is abutted against an end portion of the shooting roll and a roll positioning means for positioning the various different transfer roll lengths.

  According to a second invention, in the first invention, the carriage includes a main body frame forming a skeleton of the carriage, and a slide frame provided on the upper portion of the main body frame so as to be slidable in a forward and backward direction of the carriage and mounting the transfer roll. And the positioning of the transfer roll by the roll positioning means is performed in correspondence with a state in which the slide frame is slid in the carriage entry direction with respect to the main body frame.

  According to a third invention, in the first or second invention, the roll positioning means extends along the carriage advancing / retreating direction, and the marks are respectively marked at positions corresponding to the end portions of various transfer rolls to be mounted. And a slider that is slidable along the mark member, and a positioning plate that is provided on the slider and contacts an end of the transfer roll when the transfer roll is mounted. To do.

  According to a fourth aspect, in the third aspect, the positioning plate is pivotally urged upward by a plate urging member, and one end is pivotally supported by the slider.

  According to a fifth invention, in any one of the first to fourth inventions, the linking operation between the carriage positioning means and the device fixing side is an engaging operation.

  According to a sixth invention, in the fifth invention, the engaging operation is provided on one of the cart positioning means and the device fixing side, and is pivotally biased by a hook biasing member, and the cart positioning means. And the other side of the apparatus fixing side, the hook is pressed by an approaching operation of the carriage below the transfer roll mounting position, and the hook is rotated against the urging force of the hook urging member. It is characterized by being performed by the mating member to be engaged.

  In the first invention, since the carriage is advanced and retracted from the side with respect to the lower side of the transfer roll mounting position of the transfer device, the upstream and downstream spaces in the transfer material feeding direction of the transfer device can be effectively used. In addition, the roller positioning means and the carriage positioning means enable the transfer roll to be attached to the transfer apparatus simply by entering the carriage below the transfer roll attachment position of the transfer apparatus, so that the operator can transfer the carriage to the transfer apparatus. After entering the lower side of the roll mounting position, the transfer device moves to the upstream side and the downstream side in the feeding direction of the transfer material, and it is not necessary to check the position of the transfer roll with respect to the transfer roll mounting position, so the transfer roll can be easily replaced. It is.

  In the second invention, when the slide frame is slid in the carriage entry direction with respect to the main body frame, the transfer roll becomes a position where the transfer roll can be attached to the transfer device in a state where the carriage is entered below the transfer roll attachment position. When the frame is slid with respect to the main body frame in the backward direction of the carriage, the entire length of the carriage is shortened and becomes compact, so that a small turn is effective when the transfer roll is transported by the carriage, so that the operator can easily operate the carriage .

  In the third invention, the positioning plate can be easily moved to the marks corresponding to the end portions of the various transfer rolls by the sliding operation of the slider, and the setup time when the transfer roll is replaced can be shortened.

  In the fourth aspect of the invention, when the transfer roll is unexpectedly brought into contact with the positioning plate from above when the transfer roll is mounted on the carriage, the positioning plate is moved downward against the biasing force of the plate biasing member. Since it rotates, it is possible to prevent a failure of the positioning plate when the transfer roll contacts the positioning plate from above.

  In the fifth aspect of the invention, when the carriage is entered from below the transfer roll attachment position from the side, the carriage positioning means and the apparatus fixing side are engaged with each other by the engaging operation, so that the carriage can be firmly fixed to the apparatus fixing side.

  In the sixth aspect of the invention, when the carriage enters the transfer device, the hook is automatically engaged with the engaged member and the carriage is fixed to the device fixing side, so that the operator enters the carriage into the transfer device. Apart from the work, there is no need to perform a troublesome operation of fixing the carriage to the transfer device, and the carriage can be easily fixed to the apparatus fixing side.

It is a schematic front view of the trolley | bogie in the state which approached the transfer apparatus and the transfer apparatus downward. It is sectional drawing in the AA of FIG. It is a top view which shows the trolley | bogie in the state which slid the slide frame to the trolley approach direction. It is a top view which shows the trolley | bogie in the state which slid the slide frame to the trolley | bogie back direction. (A) is a B arrow view of FIG. 3, (b) is a C arrow view of FIG. 4, (c) is sectional drawing in the DD line | wire of (a). 4A and 4B are cross-sectional views taken along line E-E in FIG. 3, in which FIG. 3A shows a positioning plate in a normal state, and FIG. It is the F section enlarged view of FIG. It is a figure which shows the state in the middle of making the trolley approach the transcription | transfer apparatus. It is a figure which shows the state in which the position of the trolley | bogie was decided with respect to the transfer apparatus. It is a figure which shows the state just before delivering a plate_cylinder | dye from a cart to a transfer device. It is a figure which shows the state in the middle of transferring the plate cylinder from the trolley | bogie to the apparatus fixing side of the transfer apparatus. It is a figure which shows the state immediately after delivering a plate cylinder from the trolley | bogie to the apparatus fixing side of the transfer apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature.

  FIG. 1 shows a plate cylinder exchange device (transfer roll exchange device) 1 according to an embodiment of the present invention, and a transfer device 3 that transfers ink to a transfer material W such as a plastic film.

  The transfer device 3 constitutes a part of the printing device 2 that performs gravure printing or the like, and a plurality of the transfer devices 3 are used in parallel in the printing device 2.

  As shown in FIG. 2, the transfer device 3 includes a pair of side frames 30 (shown in FIG. 1) extending vertically, a plate cylinder (transfer roll) 31 in which printing cells are engraved, and the plate. A pressure drum 32 that presses the transfer material W onto the drum 31 from above, a finisher roll 34 that rotatably contacts the outer peripheral surface of the pressure drum 32 and forms the ink reservoir Li together with the side plate 33, and the plate cylinder And a doctor blade 36 that scrapes off excess ink adhering to the outer peripheral surface of the plate cylinder 31 by rotating the plate cylinder 31.

  At the plate cylinder mounting position Po (transfer roll mounting position) above the side frames 30, support shafts 35 that extend in the substantially horizontal direction and can be advanced and retracted at both ends in the axial direction of the plate cylinder 31 are opposed to each other. The both support shafts 35 are engaged with both ends of the plate cylinder 31 in the advanced state to support the plate cylinder 31, while being separated from both ends of the plate cylinder 31 in the retracted state. It is designed to be removed from the side frame 30.

  Then, with the plate cylinder 31 supported by the support shafts 35, the impression cylinder 32 is slid downward, the transfer material W is sandwiched between the plate cylinder 31 and the impression cylinder 32, and the plate The ink adhered to the outer peripheral surface of the plate cylinder 31 is transferred to the transfer material W while the transfer material W is moved by the rotational operation of the cylinder 31 and the impression cylinder 32.

  The plate cylinder changer 1 enters the plate cylinder 31 from the side under the plate cylinder attachment position Po of the transfer device 3 and carries the plate cylinder 31 back, while retreating from the plate cylinder attachment position Po to the side. A cart 5 for carrying out the trunk 31 is provided.

  As shown in FIGS. 3 and 4, the cart 5 includes a main body frame 51 that is a skeleton of the cart 5 and is elongated in the cart advancing / retreating direction and is assembled by a plurality of iron frames having an L-shaped cross section.

  The main body frame 51 has a substantially U-shaped lower frame 51a in a plan view in which the front end of the carriage advancement / retraction direction opens, and a substantially U-shape in a plan view in which the front end of the carriage advance / retreat direction opens, and the carriage above the lower frame 51a. And an upper frame 51b corresponding to the position from the front end in the forward / backward direction to the middle.

  The upper frame 51b is assembled to the lower frame 51a with a connecting frame 51c that extends straight downward from the four corners of the upper frame 51b. As shown, a pair of slide rails Sr is provided.

  As shown in FIGS. 2 and 4, a pair of substantially L-shaped guide members 52a projecting from the pair of connecting frames 51c are provided at the front end of the main body frame 51 in the cart advancing / retreating direction. Yes.

  Further, a pair of front casters Ca cannot rotate around an axis extending in the vertical direction at the front of the lower frame 51a at the lower end side of the cart, and a pair of rear casters Cb are arranged at the rear of the cart in the vertical direction. It is attached so as to be rotatable around an axis extending in the direction.

  A substantially gate-shaped gripping member 51d is attached to the rear end of the lower frame 51a in the carriage advancing / retreating direction so that the operator H can grip the upper end of the gripping member 51d and move the carriage 5. It has become.

  A slide frame 54 on which the plate cylinder 31 is mounted is provided on the upper frame 51b.

  The slide frame 54 is a bridge between the pair of first frames 54a extending along the carriage advancing / retreating direction so as to correspond to the slide rails Sr, and the first frames 54a at a predetermined interval in the carriage advancing / retreating direction. A pair of second frames 54b entangled with each other, and the first frame 54a and the second frames 54b form an opening 54c having a substantially rectangular shape in plan view.

  On both lower surfaces of the first frames 54a, slide members 54d having a substantially U-shaped cross-section that are slidably fitted on the slide rails Sr are respectively provided so as to protrude from the upper frame 51b. It is slidable in the direction of carriage movement.

  Further, as shown in FIG. 5C, each of the first frames 54a has a substantially L-shaped cross section, and the side surface covers the upper side surface of the upper frame 51b. As shown in FIGS. 5 (a) and 5 (b), a pair of positioning holes 54e are formed on the side surface of 54a (the upper side in FIG. 3 and FIG. 4) at a predetermined interval in the carriage advancing / retreating direction. .

  Further, an index plunger 51e in which a tip pin P1 protrudes outward is attached substantially at the center of the carriage advancing / retreating direction to a portion extending along the carriage advancing / retreating direction of the upper frame 51b corresponding to the one first frame 54a. 3 and 5A, when the slide frame 54 is slid in the carriage entry direction with respect to the upper frame 51b, the tip pin of the index plunger 51e is inserted into one positioning hole 54e. By inserting P1, the position of the slide frame 54 with respect to the upper frame 51b is determined. On the other hand, as shown in FIGS. 4 and 5B, the slide frame 54 is moved backward with respect to the upper frame 51b. When sliding, the other positioning hole 54e By fitting the tip pin P1 of Tsu box plunger 51e, so that the position of the slide frame 54 relative to the upper frame 51b is determined.

  Each of the second frames 54b is provided with a pair of carriage-side rollers 55 at predetermined intervals in the carriage width direction so that the rotation axis is directed to the carriage advance / retreat direction. 31 is rotatably supported.

  Also, a brake lever 55a capable of restricting the rotation of the cart side roller 55 is provided on one of the two cart side rollers 55 formed on the second frame 54b on the rear side of the cart advancing / retreating direction. By operation, the plate cylinder 31 mounted on the four carriage-side rollers 55 can be switched between a rotatable state and a stopped state around the axis.

  On the upper surface of the first frame 54a located on one side in the cart width direction, as shown in FIGS. 2 to 4, a substantially square bar-like bar 56 having a lower end supported so as to be swingable in the vertical direction slides in the cart forward and backward direction. In order to match the print pattern of the plate cylinder 31 of each transfer device 3, the plate cylinder 31 mounted on the four carriage side rollers 55 is rotated around the axis to move the upper end of the bar 56. The reference mark 31c is placed at a predetermined position on the carriage 5 by making contact with the reference mark 31c of the plate cylinder 31 (see FIG. 1, which aligns the registration of the plate cylinder 31 in each transfer device 3). It has become.

  The bar 56 is detachably attached to the first frame 54a so that it can be used in other carts 5 as well.

  Further, the reference mark 31c positioned by switching the plate cylinder 31 to the stop state on the carriage 5 by the brake lever 55a is prevented from being displaced during the movement of the carriage 5.

  Furthermore, in the present invention, the plate cylinder 31 is switched to the stop state on the carriage 5 by restricting the rotation of one of the four carriage side rollers 55. It is sufficient that the plate cylinder 31 can be switched to the stopped state on the carriage 5 by restricting at least one rotation.

  As shown in FIGS. 3 and 4, a plate cylinder positioning mechanism (roll positioning means) 6 that is movable in the carriage advance / retreat direction is provided on the front side of the first frame 54 a located at one side in the carriage width direction. ing.

  As shown in FIGS. 6 (a) and 6 (b), the plate cylinder positioning mechanism 6 extends along the carriage advancing / retreating direction, and is located at a position corresponding to the end of various plate cylinders 31 having different lengths. A mark member 61 with a mark, a guide rail 62 disposed on the counter-marking member 61 side of the first frame 54a along the carriage advance / retreat direction, and a slider 63 slidable along the mark member 61; A positioning plate 64 is provided for contacting the end of the plate cylinder 31 when the plate cylinder 31 is mounted.

  The slider 63 includes a guide member 65 having a substantially U-shaped cross section that is slidably fitted to the guide rail 62 and a slider body 66 that supports the positioning plate 64.

  The slider body 66 is embedded in a vertically extending vertical plate portion 66a, an upper horizontal plate portion 66b extending horizontally from the upper end of the vertical plate portion 66a so as to be separated from the first frame 54a, and a lower portion of the first frame 54a. And a lower horizontal plate portion 66c extending horizontally from the lower end of the vertical plate portion 66a, and the upper surface of the lower horizontal plate portion 66c is fixed to the guide member 65.

  Between the upper horizontal plate portion 66b and the vertical plate portion 66a, a plate support plate 66d whose plate surface is directed in the cart advancing / retreating direction is integrally formed across the upper horizontal plate portion 66b and the vertical plate portion 66a. Has been.

  The positioning plate 64 is substantially U-shaped, and one end thereof is pivotally supported on the plate support plate 66d by a horizontal support shaft 64a.

  A torsion spring (plate urging member) 64b is wound around the horizontal support shaft 64a, and one end side of the torsion spring 64b is fixed to the positioning plate 64 and the other end side is fixed to the vertical plate portion 66a. .

  The positioning plate 64 is held in an inclined posture extending substantially obliquely upward while being biased upward by the torsion spring 64b, and as shown in FIG. Even when the positioning plate 64 comes into contact with the positioning plate 64 from above, the positioning plate 64 rotates downward against the urging force of the torsion spring 64b. Therefore, when the plate cylinder 31 is placed on the carriage 5, even if the plate cylinder 31 suddenly contacts the positioning plate 64 from above, the positioning plate 64 moves downward against the urging force of the torsion spring 64 b. Since it rotates, it is possible to prevent a failure of the positioning plate 64 when the plate cylinder 31 contacts the positioning plate 64 from above.

  Then, in a state where the positioning plate 64 is slid on the mark of the mark member 61 corresponding to the plate cylinder 31 to be mounted, the plate cylinder 31 is moved while the end portion of the plate cylinder 31 is in contact with the positioning plate 64. By mounting on the four cart-side rollers 55, the plate cylinder 31 on the cart 5 can be attached to the transfer device 3 when the cart 5 enters below the plate cylinder mounting position Po. It is designed to be positioned. Therefore, the slide operation of the slider 63 can easily move the positioning plate 64 to the marks corresponding to the end portions of the various plate cylinders 31 and can shorten the setup time when the plate cylinders 31 are replaced.

  Above the first frame 54a located on the other side in the carriage width direction, an ink receiving member 58 having a substantially V-shaped section extending along the carriage moving direction and having an opening 58a at the upper end is disposed. 58 is adapted to receive ink guided along a pair of guide plates 39 that fall from the plate cylinder 31 and the finisher roll 34 and are mounted below the plate cylinder mounting position Po of the transfer device 3. .

  As shown in FIGS. 3 and 4, the lower frame 51a has a substantially rectangular bottom wall portion 59a extending in the width direction of the carriage and an upper peripheral edge projecting upward from the outer peripheral edge of the bottom wall portion 59a. A pedestal 59 comprising a provided side wall 59b is provided, and the pedestal 59 protrudes from the lower frame 51a to both sides.

  An ink collection box 57 is juxtaposed on the pedestal 59, and the ink received by the ink receiving member 58 passes through the ink guide 53 provided at the rear end of the upper frame 51b in the carriage advancing / retreating direction. The box 57 is collected.

  In order to facilitate the operation of the carriage 5 by the operator H, the placing table 59 is configured to be slidable in the carriage moving direction with respect to the main body frame 51, and when the plate cylinder 31 is transported, the placing table 31 is used. While the carriage 59 is slid in the carriage entry direction to shorten the overall length of the carriage 5 and make it compact, when replacing the plate cylinder 31, the carriage 59 may be slid in the carriage backward direction to be in use. Good.

  In addition, when the plate cylinder 31 is replaced, the plate cylinder exchange device 1 is configured to transfer the plate cylinder 31 between the plate cylinder attachment position Po and the carriage 5 that has entered below the plate cylinder attachment position Po. A plate cylinder elevating mechanism 4 (roll elevating means) that supports the plate cylinder 31 and moves up and down is provided.

  The plate cylinder elevating mechanism 4 includes a base frame 41 that extends straight from the lower part of the one side frame 30 (right side of FIG. 1) toward the other side frame 30 (left side of FIG. 1). A support frame Fr that supports the extended end side of the base frame 41 with the ground is provided at a position near the extended end.

  The width dimension of the base frame 41 corresponds to the distance between the projecting ends of the guide members 52a in the carriage 5. When the carriage 5 is carried below the transfer device 3, the carriage 5 2, the projecting end surfaces of both guide members 52 a are carried under the transfer device 3 while being in sliding contact with both side surfaces of the base frame 41, and the position of the carriage 5 in the width direction with respect to the transfer device 3. Can be decided.

  A servo motor-controlled first drive unit 42 is provided above the base frame 41 of the one side frame 30 so that the rotation axis is directed toward the plate cylinder axis. A rotation shaft 42a extending in the plate cylinder axis direction is attached to the output shaft of the first drive unit 42, and the rotation shaft 42a rotates in conjunction with the rotation drive of the first drive unit 42. ing.

  A pair of vertically long, substantially rectangular gear cases 43 are provided on the upper surface of the base frame 41 at a predetermined interval in the plate cylinder axis direction. The rotating shaft 42a penetrates one gear case 43 and extends. The leading end reaches the inside of the other gear case 43, and a spur gear 42b (see FIG. 2) that rotates integrally with the rotating shaft 42a is provided in each gear case 43.

  Each gear case 43 is provided with a rack 44 penetrating the gear case 43 in the vertical direction, and the rack 44 and the spur gear 42 b are engaged with each other in the gear case 43.

  A substantially U-shaped support plate 45 in a plan view extending in the plate cylinder axis direction is attached to the upper end of each rack 44 (see FIG. 3). The support plate 45 has a shape capable of passing through the opening 54c of the carriage 5 up and down. Elevating rollers 46 are provided at substantially four corners of the support plate 45 so that the rotation axis is directed toward the plate cylinder axis. The plate cylinder 31 is supported by the four lifting rollers 46 so as to be rotatable around the axis.

  As shown in FIG. 2, on one side of the back surface of the support plate 45 in the plate cylinder axis direction and on one side intersecting the plate cylinder axis direction, the servo with the rotation axis oriented in the plate cylinder axis direction is shown. A second drive unit 47 for motor control is provided.

  Of the four lifting rollers 46, the lifting roller 46 located on one side in the plate cylinder axis direction and on one side intersecting the plate cylinder axis direction is connected to the first roller via a belt (not shown). The plate cylinder 31 supported by the four elevating rollers 46 is rotated about the axis by rotating by the rotational drive of the two drive unit 47.

  The second drive unit 47 is provided with a rotary encoder 47a. The rotary encoder 47a determines the rotation angle around the axis of the plate cylinder 31 supported by the four lifting rollers 46. 46 can be detected.

  The racks 44, the support plates 45, the four raising / lowering rollers 46 and the second driving unit 47 constitute the raising / lowering unit 40, and the raising / lowering unit 40 supports the plate cylinder 31 from the lower side in the state where the plate cylinder 31 is supported from below. When the rotary shaft 42a is rotated by the rotational drive of one drive unit 42, the racks 44 are moved up and down via the spur gear 42b, and are moved up and down. While the plate cylinder 31 is transferred between them, the plate cylinder 31 is transferred between the side frames 30 at the rising end position.

  As shown in FIG. 7, the base frame 41 has a plate-like vertical wall portion 41a extending downward from the base frame 41 and the other side from the extended end of the vertical wall portion 41a. A mounting plate 41c having a substantially L-shaped cross section made of a plate-like horizontal wall portion 41b extending toward the frame 30 is provided.

  On the upper surface of the horizontal wall portion 41b, a first projecting plate 48a and a second projecting plate 48b are juxtaposed at a predetermined interval in a direction intersecting the plate cylinder axis direction. The middle portion in the longitudinal direction of the hook 48c extending in the substantially horizontal direction is pivotally supported by the horizontal support shaft 48e.

  An engagement groove 48d that opens downward is formed at one end in the longitudinal direction of the hook 48c, while one end of a coil spring (hook biasing member) Sp is fixed to the other end in the longitudinal direction of the hook 48c. ing.

  The other end of the coil spring Sp is fixed to the upper end of the second projecting plate 48b, and the coil spring Sp urges the hook 48c upward to hold the hook 48c in a substantially horizontal posture. It is like that.

  On the other hand, a substantially rectangular plate 52c protrudes upward from a frame 52b (see FIGS. 3 and 4) extending in the carriage width direction provided at a substantially central lower portion of the carriage 5 in the carriage advance / retreat direction. A striker (engaged member) 52d having a substantially U-shape in a plan view projects from the front surface of the plate 52c in the carriage advancing / retreating direction.

  When the carriage 5 is carried below the plate cylinder attachment position Po of the transfer device 3, the striker 52d moves the hook 5 by an approaching operation of the carriage 5 below the plate cylinder attachment position Po, as shown in FIG. The lower end of the longitudinal direction of 48c is pressed, and the hook 48c rotates against the urging force of the coil spring Sp while slidingly contacting the striker 52d. Further, when the carriage 5 is moved downward to the plate cylinder attachment position Po and the striker 52d corresponds to the engagement groove 48d, the hook 48c is rotated by the restoring force of the coil spring Sp and the engagement groove 48d. The striker 52d is engaged with the transfer device 3, and the position of the carriage 5 in the longitudinal direction is determined with respect to the transfer device 3.

  That is, a carriage positioning means 50 is constituted by the plate 52c and the striker 52d. The striker 52d engages and disengages the carriage 5 that has entered below the plate cylinder mounting position Po with the hook 48c of the transfer device 3. By operation (linkage operation), the carriage 5 is positioned so as not to move below the plate cylinder attachment position Po.

  Further, the carriage 5 is made to enter the lower part of the transfer device 3 so that the hook 48c is engaged with the striker 52d, and the slide frame 54 is slid in the carriage entry direction with respect to the upper frame 51b. 10 (see FIG. 10), the elevating part 40 is positioned below the plate cylinder 31 mounted on the four carriage-side rollers 55, and the plate cylinder 31 is moved upward. While being received and raised from the four cart side rollers 55 (see FIGS. 11 and 12), the plate cylinders 31 received from both side frames 30 of the transfer devices 3 at the time of lowering are received by the four cart side rollers 55. Is configured to pass.

  Next, a method for attaching the plate cylinder 31 to the transfer device 3 will be described.

  First, the operator H slides the positioning plate 64 to the position of the mark corresponding to the plate cylinder 31 to be replaced next in the mark member 61 while the printing apparatus 2 is in operation, The plate cylinder 31 is mounted on the four carriage-side rollers 55 while contacting the end of the plate cylinder 31.

  Next, the plate cylinder 31 is rotated by the four carriage side rollers 55 so that the upper end of the bar 56 is tilted and the upper end of the bar 56 contacts the reference mark 31c, and the upper end of the bar 56 is in contact with the reference mark 31c. Then, the rotation of the plate cylinder 31 is stopped by operating the brake lever 55a.

  Then, the carriage 5 on which the plate cylinder 31 is mounted is put on standby for each transfer device 3.

  When the printing operation of the printing apparatus 2 is completed, the used plate cylinder 31 is removed from each transfer apparatus 3 of the printing apparatus 2, and thereafter, each of the transfer apparatuses 3 kept on standby for each transfer apparatus 3 as shown in FIG. The carriage 5 is entered below the plate cylinder attachment position Po of each transfer device 3. When the carriage 5 enters below the plate cylinder attachment position Po, the carriage 5 enters the lower part of the transfer device 3 while the protruding end surfaces of both guide members 52a are in sliding contact with both side surfaces of the base frame 41. The position of the carriage 5 in the width direction is determined with respect to the transfer device 3.

  Next, when the carriage 5 further enters the transfer device 3 from the state of FIG. 8, as shown in FIG. 9, the striker 52d presses the hook 48c, and the hook 48c resists the urging force of the coil spring Sp. Then rotate. When the carriage 5 further enters the transfer device 3, the striker 52d corresponds to the engagement groove 48d, and the hook 48c is rotated by the restoring force of the coil spring Sp to enter the engagement groove 48d. The striker 52d is engaged, and the position of the carriage 5 in the longitudinal direction with respect to the transfer device 3 is determined.

  Accordingly, when the carriage 5 is entered from the side below the plate cylinder attachment position Po, the carriage positioning means 50 and the hook 48c are engaged with each other by the engaging operation, so that the carriage 5 is firmly fixed to the apparatus fixing side of the transfer device 3. Can be fixed.

  Further, when the carriage 5 enters the transfer device 3, the hook 48 c automatically engages with the striker 52 d and the carriage 5 is fixed to the device fixing side of the transfer device 3. Apart from the operation of entering the transfer device 3, there is no need to perform a troublesome operation of fixing the cart 5 to the transfer device 3, and the cart 5 can be easily fixed to the device fixing side of the transfer device 3.

  Thereafter, as shown in FIG. 10, the slide frame 54 is slid in the carriage entry direction with respect to the upper frame 51b, and the tip pin P1 of the index plunger 51e is inserted into one positioning hole 54e (FIG. 5 ( a), the position of the slide frame 54 with respect to the upper frame 51b is determined.

  Thereafter, as shown in FIG. 11, the first driving unit 42 is driven to raise the elevating unit 40 and pass through the opening 54 c, and the plate cylinder 31 is moved from below by four elevating rollers 46. To support.

  Thereafter, the first drive unit 42 is driven to raise the elevating unit 40 to the plate cylinder attachment position Po. Then, both the support shafts 35 are advanced and engaged with both ends of the plate cylinder 31 to attach the plate cylinder 31 to the transfer device 3.

  Thereafter, each plate cylinder 31 is rotated by a control device (not shown) so that each plate cylinder 31 of each transfer device 3 is registered.

  Then, the empty carriage 5 is made to stand by as it is below the plate cylinder mounting position Po of the transfer device 3 and printing of the printing device 2 is started.

  Next, a method for removing the plate cylinder 31 from the transfer device 3 will be described.

  First, in a state where the plate cylinder 31 is supported by the support shafts 35 and the empty carriage 5 stands by below the plate cylinder mounting position Po of the transfer device 3, the first driving unit 42 is moved. The lift unit 40 is driven to raise the lift unit 40 to the rising end position, and the plate cylinder 31 is supported by the lift unit 40.

  Next, both the support shafts 35 are retracted from both ends in the axial center direction of the plate cylinder 31 to remove the plate cylinder 31 from the both side frames 30, and the plate cylinder 31 is moved from the both side frames 30 to the lifting unit 40. To hand.

  Thereafter, the first drive unit 42 is driven to lower the elevating unit 40, and the plate cylinder 31 is transferred to the cart 5 during the lowering.

  Then, the slide frame 54 of the carriage 5 is slid and positioned with respect to the upper frame 51b in the rearward direction of the carriage, and then the engagement between the hook 48c and the striker 52d is performed by a release lever (not shown). To release.

  Thereafter, the carriage 5 is moved backward from the lower side of the plate cylinder attachment position Po of the transfer device 3, and the plate cylinder 31 is carried out of the transfer device 3.

  As described above, according to the embodiment of the present invention, since the carriage 5 is advanced and retracted from the side with respect to the lower side of the plate cylinder attachment position Po of the transfer device 3, the upstream side and the downstream side in the transfer material feeding direction of the transfer device 3. Space can be used effectively. In addition, since the plate cylinder 31 can be attached to the transfer device 3 simply by entering the carriage 5 below the plate cylinder attachment position Po of the transfer device 3 by the plate cylinder positioning mechanism 6 and the carriage positioning means 50, the operator H moves the carriage 5 below the plate cylinder attachment position Po of the transfer device 3 and then moves upstream and downstream of the transfer device 3 in the feeding direction of the transfer material, and the plate cylinder 31 with respect to the plate cylinder attachment position Po. Therefore, the plate cylinder 31 can be easily replaced.

  When the slide frame 54 of the carriage 5 is slid in the carriage entry direction with respect to the main body frame 51, the position where the plate cylinder 31 can be attached to the transfer device 3 with the carriage 5 entered below the plate cylinder attachment position Po. On the other hand, if the slide frame 54 is slid with respect to the main body frame 51 in the backward direction of the carriage, the entire length of the carriage 5 is shortened and becomes compact, so that a small turn is effective when the plate cylinder 31 is conveyed by the carriage 5. The operator H can easily operate the cart 5.

  In the embodiment of the present invention, the plate cylinder exchanging apparatus 1 used for exchanging the plate cylinder 31 in each transfer apparatus 3 of the printing apparatus 2 has been described. However, the transfer roll exchanging apparatus of the present invention is a transfer of a coating apparatus. It can also be used to replace the coating roll in the device.

  In the embodiment of the present invention, the carriage 5 is provided with the slide frame 54. When the carriage 5 is moved below the plate cylinder mounting position Po of the transfer device 3, the slide frame 54 is moved with respect to the main body frame 51. The plate cylinder 31 is in a position where the plate cylinder 31 can be attached to the transfer device 3 while being slid in the entry direction. However, the carriage 5 has a structure without the slide frame 54 and the carriage 5 enters the plate cylinder attachment position Po below the transfer device 3. In this case, the plate cylinder 31 may be in a position where it can be attached to the transfer device 3.

  In the embodiment of the present invention, the carriage 5 and the apparatus fixing side of the transfer device 3 are detachably engaged with each other by an engagement operation including the hook 48c and the striker 52d. May be positioned so as not to move below the plate cylinder mounting position Po by a linkage operation with the apparatus fixing side of the transfer apparatus 3.

  In the embodiment of the present invention, the plate cylinder elevating mechanism 4 is attached to the transfer device 3, but may be provided on the carriage 5.

  In the embodiment of the present invention, the carriage 5 is provided with the striker 52d, while the hook 48c that engages with the striker 52d is provided on the apparatus fixing side of the transfer device 3. However, the carriage 5 is provided with the hook 48c. The striker 52d may be provided on the apparatus fixing side of the transfer apparatus 3.

  The present invention is suitable for a transfer roll exchanging apparatus used when a transfer roll provided in a transfer apparatus of a printing apparatus or a coating apparatus is detached from the transfer apparatus.

1 Plate cylinder changer (transfer roll changer)
2 Printing device 3 Transfer device 4 Plate cylinder lifting mechanism (roll lifting mechanism)
5 Cart 6 Plate cylinder positioning mechanism (roll positioning means)
31 Plate cylinder (transfer roll)
48c hook 50 bogie positioning means 51 body frame 52d striker (engaged member)
54 Slide frame 61 Marking member 63 Slider 64 Positioning plate 64b Torsion spring (plate biasing member)
Sp Coil spring (hook biasing member)

Claims (6)

A transfer roll exchanging apparatus used when a transfer roll provided in a transfer apparatus of a printing apparatus or a coating apparatus is detached from the transfer apparatus,
A carriage that enters the transfer roll below the transfer roll mounting position of the transfer device from the side and carries in the transfer roll, while retreating from the transfer roll mounting position below to the side and unloads the transfer roll;
Roll transfer means for supporting the transfer roll to move up and down to transfer the transfer roll between the transfer roll mounting position and the carriage that has entered below the transfer roll mounting position when the transfer roll is replaced,
The carriage is a carriage positioning means for positioning the carriage that has entered below the transfer roll attachment position so as not to move below the transfer roll attachment position by a linkage operation with the apparatus fixing side;
The transfer roll is provided so as to be movable in the advancing / retreating direction of the carriage so that the transfer roll on the carriage can be attached to the transfer device when the carriage enters below the transfer roll attachment position. And a roll positioning means for positioning various transfer rolls having different lengths. In the transfer roll exchanging apparatus according to claim 1,
The bogie has a main body frame that forms the skeleton of the bogie,
A slide frame provided on the main body frame so as to be slidable in the carriage advancing and retracting direction, and carrying the transfer roll;
The transfer roll exchanging apparatus according to claim 1, wherein positioning of the transfer roll by the roll positioning means is performed corresponding to a state in which the slide frame is slid in the carriage entry direction with respect to the main body frame. In the transfer roll exchanging apparatus according to claim 1 or 2,
The roll positioning means extends along the carriage advancing / retreating direction, and a marking member in which a mark is marked at a position corresponding to an end portion of various transfer rolls to be mounted,
A slider slidable along the marker member;
A transfer roll exchanging apparatus, comprising: a positioning plate provided on the slider and contacting an end of the transfer roll when the transfer roll is mounted. In the transfer roll exchanging apparatus according to claim 3,
One end of the positioning plate is pivotally urged upward by a plate urging member, and one end of the positioning plate is pivotally supported by the slider. In the transfer roll exchanging apparatus according to any one of claims 1 to 4,
The transfer roll exchanging apparatus according to claim 1, wherein the linking operation between the carriage positioning means and the apparatus fixing side is an engaging operation. In the transfer roll exchanging apparatus according to claim 5,
The engagement operation is provided on one of the carriage positioning means and the apparatus fixing side, and is a hook that is urged to rotate by a hook urging member;
Provided on the other side of the carriage positioning means and the fixed side of the apparatus, the hook is pressed by an approach operation of the carriage below the transfer roll mounting position, and the hook rotates against the urging force of the hook urging member. A transfer roll exchanging apparatus, wherein the transfer roll exchanging apparatus is engaged with an engaged member that moves and engages.

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