JP5286033B2 - Printer - Google Patents

Description

  The present invention relates to a printing press in which an opening / closing mechanism is provided at a door portion of a cover body of a printing unit.

  Conventionally, a printing machine including a printing unit that performs printing on a fed printing paper, and the printing unit includes a cover body in which a printing driving unit that drives to print the printing paper is housed. There is known a printing machine in which the cover body includes a door portion provided with an opening / closing mechanism. Such an opening / closing mechanism includes a fixed pulley that is installed so as not to move when the door portion is opened and closed, and a cable body that is hung on the fixed pulley, one end is attached to the door portion, and a weight is attached to the other end portion. (See Patent Document 1 below).

In such a printing machine, the weight of the door portion is reduced by the weight of the weight, so that the door portion can be easily opened and the work such as maintenance of the print driving unit housed in the cover body is performed. It can be performed.
JP-A-11-262993

  However, in the above-described conventional printing machine, one end of the cable body is attached to the door, and a weight is attached to the other end on the opposite side via the fixed pulley. The amount of movement is equal to the amount of movement of the weight when opening and closing. Therefore, if an attempt is made to secure a large opening amount by increasing the amount of movement when opening and closing the door portion, the amount of movement of the weight must be increased in the same way, and there is a problem that this leads to an increase in the size of the apparatus. It was.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a printing machine capable of suppressing an increase in size while ensuring a large opening amount of the door portion.

The present invention has been made to solve the above problems, and a printing machine according to the present invention is a printing machine including a printing unit that performs printing on a fed printing paper, and the printing unit includes the printing unit described above. A print drive unit that drives to print on a sheet includes a cover body that is housed therein, and the cover body includes an openable / closable door unit provided with an open / close mechanism, and the open / close mechanism opens and closes the door unit. A fixed pulley that does not move during movement, and is hung on the fixed pulley, and one end is attached to the door so as to follow the opening and closing movement direction of the door, and the other end is opened and closed when the door is opened and closed. A movable body attached to a fixed attachment portion that does not move, a moving pulley that moves when the door portion opens and closes, and a portion on the other end side of the fixed pulley on the rope body is hung, and the movable pulley moves further comprising, said urging portion for urging the movable pulley in the direction of The pulley is configured to be movable between a closed position that is located when the door portion is in a closed state and a fully open position that is located when the door portion is in a fully open state, and the biasing portion is engaged with and disengaged from the moving pulley. An actuator configured to be able to engage the moving pulley and bias the moving pulley from the closed position toward the fully open position, and the actuator is located between the closed position and the fully open position from the closed position. The moving pulley is urged and moved to a position in the middle .

  In the printing machine having such a configuration, the moving pulley is hung by a portion on the other end side than the fixed pulley in the rope body, that is, the rope body is on one end side attached to the door portion. In the fixed pulley, it is hung on the moving pulley on the other end attached to the fixed mounting portion, so that the moving amount of the moving pulley at the time of opening and closing is larger than the moving amount at the time of opening and closing the door portion. Is smaller. Therefore, even if the movement amount of the door portion is increased to increase the opening amount, an increase in the movement amount of the movable pulley can be suppressed.

  The door portion can be configured to be opened and closed by the urging force of the urging portion, or can be configured to be opened and closed by, for example, an operator holding the door portion.

Further , according to the configuration of the present invention, since the actuator urges and moves the moving pulley from the closed position to the middle position, the door portion corresponds to the halfway position from the closed state as the moving pulley moves. Can be opened to an open state (ie, an intermediate open state between a closed state and a fully open state).

  Here, the moving pulley is configured to be movable from the closed position to the fully opened position, and the actuator is configured to be detachable with respect to the moving pulley. The engagement with the actuator can be released to further move to the fully open position. Therefore, the door portion in the intermediate open state can be further opened to the fully open state.

  As described above, by providing an intermediate open state in addition to the closed state and the fully open state as the open state of the door portion, the open amount of the door portion can be appropriately selected according to, for example, the contents of work.

  Furthermore, the printing drive unit includes a plate cylinder, an ink unit that supplies ink to the plate cylinder, and a cleaning device that collects waste liquid discharged when the ink unit is cleaned, and the door unit is in a closed state. The printing drive unit is not exposed to the outside, and the plate cylinder is exposed when the movable pulley is in an intermediate open state when the movable pulley is located at a midway position. It is preferable that the plate cylinder and the cleaner are exposed.

  According to such a configuration, for example, when performing work such as plate replacement or plate cylinder cleaning that is frequently performed, the door can be opened to an intermediate open state to expose the plate cylinder. When performing operations such as waste liquid processing in a cleaning device that is infrequent, the operation can be performed by opening the door portion to the fully open state to expose the cleaning device, thereby improving work efficiency.

  As described above, in the printing press according to the present invention, the moving pulley has a portion on the other end side than the fixed pulley in the rope body. As a result, an increase in the amount of movement of the movable pulley can be suppressed. As a result, an increase in size can be suppressed while ensuring a large opening amount of the door.

Hereinafter, an embodiment of a printing press according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a printing press 1 according to this embodiment. The printing machine 1 is a sheet-fed printing machine, and a sheet feeding unit A that feeds a sheet P as a printing sheet disposed on the upstream side, and a sheet P that has been disposed on the downstream side and printed. Are disposed between the paper discharge unit B, the paper supply unit A, and the paper discharge unit B, and serve as a printing unit C that prints on the sheet P fed from the paper supply unit A. And a printing unit 2. In the present embodiment, as many printing units 2 as the number of ink colors used for printing are provided.

  As shown in FIG. 2, the printing unit 2 includes a cover body 3 and a print driving unit 4 that is accommodated in the cover body 3 and driven to print on the sheet P. The print driving unit 4 is disposed between the left and right frames F, and is disposed on the upper side of the plate cylinder 41 around which the printing plate is wound, and a plurality of inks that supply ink to the plate cylinder 41. An ink section 42 including a roller; a cleaning device 43 which is disposed on the downstream side of the ink section 42 and above the plate cylinder 41 and stores waste liquid discharged when the ink section 42 is cleaned; A rubber cylinder 44 (a blanket cylinder) that is disposed on the side and is capable of rolling contact with the plate cylinder 41 is provided. The plate cylinder 41 and the rubber cylinder 44 are respectively supported by the left and right frames F so as to be freely rotatable via a support shaft.

  As shown in FIGS. 2 and 3A and 3B, the cover body 3 is formed between the left and right frames F, and is arranged downstream of both frames F, that is, downstream of the print drive unit 4. And a safety cover that covers the print driving unit 4 and is disposed on the lower side of the lower door unit 31 as a door unit disposed on the downstream side between the left and right frames F. And an upper door portion 32.

  The upper door portion 32 is configured to be capable of rotating in the vertical direction between the left and right frames F via a rotation shaft so that the downstream side and the upper portion between the frames F can be opened and closed. The upper door part 32 is configured to open and close the downstream side of the ink part 42 of the print driving part 4 by rotating up and down. Specifically, the upper door portion 32 covers the ink portion 42 so that the ink portion 42 is not exposed in the closed state m1, and the ink portion 42 is exposed to the outside when the upper door portion 32 is rotated upward from the closed state m1 to the open state m2. It is configured as follows.

  The lower door portion 31 is attached between the left and right frames F so as to be movable up and down, so that the downstream side between the frames F, that is, the downstream side of the print drive unit 4 can be opened and closed. Specifically, the lower door portion 31 is formed in a flat plate shape whose length in the left-right direction extends between the left and right frames F. In addition, a pair of rollers 33 is provided on each of the left and right end portions 311 of the lower door portion 31, and a guide pin 34 projects from the center of the rollers 33.

  The lower door portion 31 is attached to a pair of door rail portions 5 provided at the downstream end portions of the left and right frames F and formed along the vertical direction. Specifically, the lower door portion 31 has a roller 33 provided at both left and right end portions 311 fitted into a groove portion 51 along the vertical direction of the door rail portion 5, whereby It is attached so that it can slide up and down along the direction, and it can open and close the downstream side of the plate cylinder 41 of the printing drive part 4, the washing machine 43, and the rubber cylinder 44 by such sliding movement. Has been. In addition, the length L1 in the width direction (vertical direction) of the lower door portion 31 is shorter than the length L2 in the vertical direction of the door rail portion 5, specifically, in the vertical direction of the door rail portion 5. The length is slightly larger than half of the length L2.

  Here, the door rail portion 5 is a column that is erected along the vertical direction of the print drive unit 4, specifically, the vertical direction so as to correspond to the rubber cylinder 44 to the ink unit 42. A groove 51 is formed over the entire upper and lower portions. The groove 51 includes a linear roller guide portion 511 formed over the entire vertical direction of the door rail portion 5, and a roller escape portion 512 formed downstream from the upper end portion of the roller guide portion 511. It is configured. In addition, a guide groove 52 that guides the guide pin 34 protruding from the roller 33 is formed at the bottom of the groove 51. The guide groove 52 is formed in a linear pin guide portion 521 formed over the entire upper and lower direction along the bottom portion of the roller guide portion 511, and downstream and downward from the upper end portion of the pin guide portion 521. And a pin locking portion 522.

  The lower door portion 31 is attached so as to extend between the door rail portions 5. Specifically, the lower door portion 31 is attached in a state where the roller 33 is fitted into the groove portion 51 and the guide pin 34 is fitted into the guide groove 52, and the roller 33 is attached to the roller guide portion 511. 34 are respectively guided by the pin guide portions 521 and slidably move up and down.

  The lower door portion 31 is provided with opening / closing mechanisms 6 at both left and right end portions 311. In FIG. 2, the opening / closing mechanism 6 is not shown for convenience of explanation. As shown in FIGS. 3 to 5, the opening / closing mechanism 6 slides the lower door portion 31 in the vertical direction, or assists the sliding movement of the lower door portion 31 in the vertical direction. A fixed pulley 61 that does not move when the lower door portion 31 is opened and closed (sliding movement in the present embodiment), a moving pulley 62 that moves when the lower door portion 31 is opened and closed, the fixed pulley 61, and a moving pulley 62, a cable 63 in which one end 631 is attached to the lower door 31 and the other end 632 is attached to a fixed attachment that does not move when the lower door 31 is opened and closed. And an urging portion 64 for urging the movable pulley 62 in the moving direction.

  The fixed pulley 61 is disposed on the outer side in the left-right direction with respect to the lower door portion 31 in a direction in which the rotation axis is the conveyance direction of the sheet P. Specifically, the fixed pulley 61 can rotate to the door rail portion 5. It is fixed. In the present embodiment, the fixed pulley 61 is provided above the cleaning device 43.

  As shown in FIG. 6, the movable pulley 62 includes a pulley main body 621 on which the cable body 63 is hung, a coaxial with the pulley main body 621, one end attached to the pulley main body 621, and a flange on the other end. And a shaft portion 622 formed with 6221. In the present embodiment, the shaft portion 622 is a rod-shaped body formed in a straight line, and both left and right end surfaces are flat surfaces 6222 as shown in FIGS.

  The movable pulley 62 is installed on the outer side in the left-right direction with respect to the fixed pulley 61, and is provided so that the rotation shaft can be moved along the vertical direction in the direction in which the sheet P is conveyed. ing. Specifically, the movable pulley 62 is attached to the pulley rail portion 7 provided in the door rail portion 5 so as to be movable in the vertical direction.

  Here, the rail section 7 for pulleys has a guide hole 711 formed in a long hole shape, and includes a pair of rail pieces 71 provided to face each other, and a connecting piece 72 that connects the rail pieces 71 to each other. . The rail for rail 7 has a connecting piece in a direction in which both rail pieces 71 face each other in the conveying direction and the longitudinal direction of the guide hole 711 is along the vertical direction, and at a position below the fixed pulley 61. 72 is attached and installed on the outer surface of the door rail 5 in the left-right direction.

  A movable pulley 62 is attached to the pulley rail portion 7 so as to be movable in the vertical direction. Specifically, the movable pulley 62 is attached to the pulley rail portion 7 in a state where the shaft portion 622 is inserted into the guide hole 711 of each rail piece 71. Therefore, the movable pulley 62 is guided by the guide hole 711 and moves in the vertical direction below the fixed pulley 61. Since the left and right end surfaces of the shaft portion 622 are flat surfaces 6222, the rotation of the shaft portion 622 is prevented when the flat surface 6222 contacts the rail piece 71.

  In the present embodiment, a spring 65 that biases the moving pulley 62 downward is provided on the lower side of the moving pulley 62. The upper end portion of the spring 65 is attached to a spring attachment portion 67 attached via an attachment 66 provided on the shaft portion 622 of the movable pulley 62, and the lower end portion is attached to the lower end portion 5 b of the door rail portion 5. It is attached and always urges the movable pulley 62 downward. In FIG. 3A, for convenience of explanation, the spring 65, the attachment 66, and the spring mounting portion 67 are not shown.

  The cable body 63 is a long chain, and one end portion 631 is attached to the lower door portion 31 and the other end portion 632 is attached to the door rail portion 5. Specifically, one end portion 631 of the rope body 63 is attached to the lateral side surface of the lower end portion 312 of the lower door portion 31. On the other hand, the other end portion 632 of the cable body 63 is fixed at a position above the one end portion 631, and the door rail portion 5 as a fixed mounting portion that does not move when the lower door portion 31 opens and closes. Is attached to the side surface in the left-right direction of the upper end portion 5a. In the present embodiment, the other end 632 is attached to a mounting base 53 that protrudes outward in the left-right direction at the upper end 5 a of the door rail 5. That is, the one end 631 of the rope 63 is located on the inner side in the left-right direction with respect to the door rail 5 and on the lower end 5 b side of the door rail 5, and the other end 632 is from the door rail 5. Is also located on the outer side in the left-right direction and on the upper end 5a side of the door rail portion 5. The cord body 63 may be a wire, a belt, a rope, or the like.

  Further, the rope body 63 is hung on the fixed pulley 61 and the movable pulley 62. Specifically, the cable body 63 is hung on the fixed pulley 61 on the one end 631 side, and is hung on the moving pulley 62 on the other end 632 side than the fixed pulley 61. More specifically, the rope body 63 is hung from the upper side with respect to the fixed pulley 61 and hung from the lower side with respect to the moving pulley 62. That is, the rope 63 is formed upward from one end 631 attached to the lower door portion 31 to the fixed pulley 61, and is hung on the upper side of the fixed pulley 61 to move from the fixed pulley 61 to the moving pulley. It is formed downward to 62, is hung around the lower side of the movable pulley 62, and is formed upward from the movable pulley 62 to the other end 632.

  In this way, the moving pulley 62 is hung by the rope 63 attached to the lower door portion 31 that can be opened and closed. Therefore, the opening and closing movement of the lower door portion 31 and the movement of the moving pulley 62 are linked. Become. Specifically, when the lower door portion 31 is in the closed state M1 in which the downstream side of the print drive unit 4 is closed, the movable pulley 62 is closed at one end (in the present embodiment, the upper end) of its moving range. When the lower door 31 is in the fully open state M2 in which the plate cylinder 41, the rubber cylinder 44, and the cleaning device 43 are exposed at the position P1, the movable pulley 62 is connected to the other end of the moving range (this embodiment). In the form, it is located at the fully open position P2 which is the lower end). When the lower door portion 31 slides upward from the closed state M1 toward the fully open state M2, the movable pulley 62 moves downward along the guide hole 711 from the closed position P1 toward the fully open position P2. When the lower door portion 31 slides downward from the fully open state M2 to the closed state M1, the movable pulley 62 moves upward along the guide hole 711 from the fully open position P2 to the closed position P1.

  The urging unit 64 that urges the movable pulley 62 along its moving direction is an actuator 64 such as a pneumatic or hydraulic cylinder. As shown in FIG. 7, the actuator 64 includes an engaging portion 641 that engages with the movable pulley 62 to urge the movable pulley 62. The engaging portion 641 is provided at the distal end portion of the arm of the actuator 64 and includes a concave portion 6411 that fits with the shaft portion 622 of the movable pulley 62.

  The actuator 64 is configured to be detachable with respect to the movable pulley 62, and engages with the movable pulley 62 so as to urge the movable pulley 62 from the closed position P1 toward the fully opened position P2. It is configured. Specifically, the actuator 64 is attached to the door rail portion 5 on the upper side of the movable pulley 62 so that the arm extends downward, and the concave portion 6411 of the engaging portion 641 is attached to the shaft portion 622 of the movable pulley 62. Can be engaged with the moving pulley 62 to urge the moving pulley 62 downward, and the urging can be released by releasing the engagement with the moving pulley 62. it can.

  Further, the actuator 64 is configured to be able to move the movable pulley 62 by urging it in the moving direction. Specifically, the actuator 64 biases the movable pulley 62 downward, thereby moving the movable pulley 62 from the closed position P1 to an intermediate position P3 between the closed position P1 and the fully opened position P2. It is configured to move.

  In addition, it is preferable to separately provide a cover (not shown) that covers the opening / closing mechanism 6 having such a configuration because safety and appearance are improved.

Next, the opening / closing operation of the lower door portion 31 of the printing press 1 configured as described above will be described with reference to FIGS.
FIG. 8 shows a closed state M <b> 1 in which the lower door portion 31 closes the downstream side of the print driving unit 4. In the closed state M1, the lower door portion 31 covers the plate cylinder 41, the rubber cylinder 44, and the cleaning device 43 housed inside the cover body 3 from the downstream side so as not to be exposed to the outside. ing. Moreover, the movable pulley 62 is located in the closed position P1 which is one end (the upper end in this embodiment) of the movement range. Note that, in the closed state M <b> 1, the entire lower door portion 31 is located below the fixed pulley 61.

  From this closed state M1, when the actuator 64 is driven to urge the movable pulley 62 downward, the movable pulley 62 moves downward from the closed position P1. Then, one end portion 631 of the cord body 63 is pulled up to the fixed pulley 61 side, the lower door portion 31 is pulled up from the closed state M1, and the downstream side of the print driving unit 4 is gradually opened.

  Then, when the movable pulley 62 moves to the midway position P3, the movement of the movable pulley 62 by the actuator 64 is stopped, and the upward movement (that is, the opening operation) of the lower door portion 31 includes the closed state M1 and the fully opened state M2. Is temporarily stopped in an intermediate open state M3, which is an open state between (FIG. 9). In the intermediate open state M3, the plate cylinder 41 and the rubber cylinder 44 are exposed to the outside, while at least a part of the cleaning device 43 is covered with the lower door portion 31.

  When the lower door portion 31 in the intermediate open state M3 is gripped and lifted, for example, by an operator or the like, the lower door portion 31 moves upward and enters the fully open state M2 (FIG. 10). As the lower door portion 31 moves, the movable pulley 62 is disengaged from the engaging portion 641 of the actuator 64 and separated from the actuator 64, and moves downward from the midway position P3 to the fully open position P2. . In the fully open state M2, the plate cylinder 41, the rubber cylinder 44, and the cleaning device 43 are exposed to the outside.

  Further, when the lower door portion 31 of the fully opened state M2 is tilted downstream with the lower end portion 312 as a center, the guide pin 34 of the roller 33 provided on the lower door portion 31 is moved to the door rail portion 5. The guide groove 52 is fitted into the pin locking portion 522 and locked. In this locked state, the lower door portion 31 is in a locked state M4 where the fully opened state M2 is held. In the locked state M4, the roller 33 provided with the guide pin 34 is fitted in the roller escape portion 512 of the groove portion 51 of the door rail portion 5.

  In the printing press 1 configured as described above, the one end 631 side of the rope 63 is hung on the fixed pulley 61, and the other end 632 side is hung on the movable pulley 62. The opening / closing movement and the movement of the moving pulley 62 are interlocked, and the moving amount of the moving pulley 62 at the time of opening / closing is smaller than the moving amount at the time of opening / closing the lower door portion 31. In the present embodiment, the moving amount of the movable pulley 62 is half of the moving amount when the lower door portion 31 is opened and closed. Therefore, even if the amount of movement of the lower door portion 31 is increased and the amount of opening on the downstream side of the print drive unit 4 is increased, an increase in the amount of movement of the movable pulley 62 can be suppressed. Therefore, the enlargement of the printing press 1 itself can be suppressed while ensuring a large opening amount of the lower door portion 31.

  Further, since the actuator 64 urges and moves the movable pulley 62 from the closed position P1 to the midway position P3, the lower door portion 31 is moved from the closed state M1 to the middle along with the movement of the movable pulley 62 by the actuator 64. The plate cylinder 41 and the rubber cylinder 44 can be exposed to the outside by automatically opening to the open state M3.

  Further, the lower door portion 31 is opened to the fully opened state M2 by, for example, an operator holding and lifting the lower door portion 31 of the intermediate open state M3, and then washed in addition to the plate cylinder 41 and the rubber cylinder 44. The container 43 can be exposed to the outside.

  In this way, by providing the intermediate open state M3 in addition to the closed state M1 and the fully open state M2 as the open state of the lower door portion 31, for example, plate exchange or plate cylinder 41 or rubber cylinder 44 with high work frequency is provided. When the work such as cleaning is performed, the lower door portion 31 is opened to the intermediate open state M3, the plate cylinder 41 and the rubber cylinder 44 are exposed, and the high-frequency work can be performed. When working such as waste liquid treatment in the container 43, the lower door 31 can be opened to the fully open state M2 to expose the washing machine 43, and the work can be performed at a low frequency, thereby improving work efficiency. be able to. Further, since the lower door portion 31 is configured to be automatically opened by the actuator 64 from the closed state M1 to the intermediate open state M3, the work load can be reduced. On the other hand, since the lower door portion 31 is configured to be manually opened from the intermediate open state M3 to the fully open state M2, the apparatus can be simplified.

  Furthermore, since the lock state M4 that holds the fully open state M2 is provided as the open state of the lower door portion 31, the lower door portion 31 of the fully open state M2 is not inadvertently closed and is safe.

  In addition, since the spring 65 that constantly urges the movable pulley 62 downward is provided, even if the locked state M4 is accidentally released, the downward moving speed of the lower door portion 31 is reduced. Can be safe. Further, the biasing force of the actuator 64 in the opening operation of the lower door portion 31 can be reduced by the spring 65, and the actuator 64 can be reduced in size.

  In the present embodiment, the case where the lower door portion 31 is formed to extend between the left and right frames F has been described. However, the present invention is not limited to this, and only a part between the left and right frames F is supported. May be formed.

  Moreover, although this embodiment demonstrated the case where the length L1 of the lower door part 31 was larger than the half of the length L2 of the up-down direction of the door rail part 5, it does not restrict to this but the rail part 5 for doors. It may be equal to or smaller than half of the vertical length L2.

  Furthermore, in this embodiment, although the case where a pair of opening / closing mechanisms 6 is provided on the left and right is described, the present invention is not limited to this, and only one may be provided.

  Furthermore, in the present embodiment, the case where one fixed pulley 61 and one movable pulley 62 are provided has been described. However, the present invention is not limited to this, and either one or both may be provided.

  In the present embodiment, the case where the movable pulley 62 moves below the fixed pulley 61 has been described. However, the present invention is not limited to this, and the moving pulley 62 may move above the fixed pulley 61. In this case, the upper end of the moving range of the movable pulley 62 is the closed position P1, and the lower end is the fully open position P2.

  Furthermore, in this embodiment, although the case where the moving direction of the movable pulley 62 is an up-down direction was demonstrated, not only this but along the direction which cross | intersects the moving direction of the lower door part 31, such as a left-right direction and a conveyance direction. The direction may be different. In this case, the actuator 64 is arranged so as to bias the moving pulley 62 in a direction along the moving direction of the moving pulley 62.

  Furthermore, in the present embodiment, the case where the mounting base 53 as the fixed mounting portion is provided in the door rail portion 5 has been described, but the present invention is not limited thereto, and may be provided in the frame F, for example. That is, the other end 632 of the rope 63 may not be moved regardless of the opening / closing movement of the lower door 31, for example, may be attached to the frame F or the like.

  Further, in the present embodiment, the case where the actuator 64 urges and moves the movable pulley 62 from the closed position P1 to the midway position P3 has been described. However, the present invention is not limited thereto, and the movable pulley 62 is moved from the closed position P1 to the fully opened position. It may be a case where it is energized and moved to P2, or it may be a case where it is energized to the extent that the moving pulley 62 does not move to assist the movement of the moving pulley 62.

  Further, in the present embodiment, the case where the actuator 64 can be engaged with and disengaged from the movable pulley 62 has been described. Good.

1 is a schematic diagram showing an embodiment of a printing press according to the present invention. FIG. 2 is a schematic side view showing a printing unit of the printing press. It is a figure which shows the same printing unit, (A) is a front view, (B) is a top view. The front view which shows the opening-and-closing mechanism provided in the door part of the printing unit. The perspective view which shows the opening / closing mechanism. The side view which shows the moving pulley of the opening-and-closing mechanism. Schematic which shows the state which the movable pulley and actuator of the opening-and-closing mechanism engaged. The side view which shows the closed state of the door part. The side view which shows the intermediate | middle open state of the door part. The side view which shows the fully open state of the door part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Printing machine, 2 ... Printing unit, 3 ... Cover body, 4 ... Print drive part, 5 ... Door rail part, 6 ... Opening / closing mechanism, 7 ... Rail part for pulley, 31 ... Lower door part, 32 ... Upper side Door part, 33 ... roller, 34 ... guide pin, 41 ... plate cylinder, 42 ... ink part, 43 ... cleaning unit, 44 ... rubber cylinder, 51 ... groove part, 52 ... guide groove, 53 ... mounting base (fixed mounting part) , 61 ... fixed pulley, 62 ... dynamic pulley, 63 ... cable body, 64 ... biasing part (actuator), 65 ... spring, 66 ... attachment, 67 ... spring mounting part, 71 ... rail piece, 72 ... connecting piece, 511 ... roller guide part, 512 ... roller escape part, 521 ... pin guide part, 522 ... pin locking part, 621 ... pulley body part, 622 ... shaft part, 641 ... engagement part, 711 ... guide hole, 6411 ... concave part, A: Paper feeding unit, B: Paper discharging unit, C: Printing unit, F: Frame P ... sheet (printing leaf paper)

Claims (2)

A printing machine comprising a printing unit for printing on fed printing paper,
The printing unit includes a cover body in which a printing drive unit that drives to print on the printing paper is housed, and the cover body includes an openable / closable door unit provided with an opening / closing mechanism,
The opening / closing mechanism is a fixed pulley that does not move when the door portion is opened and closed, and is hung on the fixed pulley, and one end portion is attached to the door portion along the opening / closing movement direction of the door portion, and the other end portion is , A cable body attached to a fixed mounting part that does not move when the door part is opened and closed, a part on the other end side than the fixed pulley in the cable body is hung, and moves when the door part opens and closes A moving pulley, and a biasing portion that biases the moving pulley in a direction in which the moving pulley moves ,
The movable pulley is configured to be movable between a closed position that is located when the door portion is in a closed state and a fully open position that is located when the door portion is in a fully open state,
The urging portion is configured to be detachable from the moving pulley, and is an actuator that engages the moving pulley and can urge the moving pulley from the closed position toward the fully open position,
The printer is configured to urge the movable pulley to move from the closed position to an intermediate position between the closed position and the fully opened position . The printing drive unit includes a plate cylinder, an ink unit that supplies ink to the plate cylinder, and a cleaning device that collects waste liquid discharged when the ink unit is cleaned.
When the door portion is in the closed state, the printing drive unit is not exposed to the outside, and when in the intermediate open state, which is the open state when the movable pulley is located at an intermediate position, the plate cylinder is exposed and fully opened. The printing press according to claim 1 , wherein the printing cylinder and the cleaning device are exposed when in a state.

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