JP2006001678A - Transport device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To structure a transport device capable of surely correcting attitude of a printing paper after receiving an end of the printing paper without hindering receiving of the printing paper into a receiver part. <P>SOLUTION: This transport device is provided with a pinching mechanism C for pinching the printing paper and transporting it to a receiver unit D, and the receiver unit D is provided with a receiving roller 80 and a correcting roller 65 energized by a torsion spring 68 to be brought in pressure-contact with a guide surface 72a of a guide member 72. This correcting roller 65 is provided with a shaft 66 to be operated for switching to a waiting position separated from the guide surface 72a, and an operating shaft 51 for switching the correcting roller 65 to the waiting position with abutting on the shaft 66 to be operated is provided in the pinching mechanism so that the operating shaft 51 is projected by energizing force of a coil spring 52. Energizing force to be applied from the coil spring 52 to the operating shaft 51 is set stronger than the energizing force to be applied from the torsion spring 68 to the correcting roller 65. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention includes a transport system that sandwiches a photosensitive material exposed by an exposure unit with a sandwiching mechanism and transports the photosensitive material to a receiving unit of a development processing unit, and contacts the photosensitive material delivered from the sandwiching mechanism at the receiving unit. The present invention also relates to a transport device provided with a correction mechanism for setting the posture of the photosensitive material.

  When the photographic paper (photosensitive material of the present invention) that is exposed by the exposure processing unit (exposure unit of the present invention) and fed out in the horizontal direction is a small size as the transport device configured as described above, the left and right chucks are arranged. The paper is alternately received by the king roller, and after this reception, the photographic paper is switched to a hanging form by changing the posture of each chucking roller, and is raised while being moved in the direction of the corresponding sorting and conveying path. If the sorting operation is performed so that the king photographic paper is delivered to the upper introduction roller (the receiving portion of the present invention), and large photographic paper that cannot be sorted is conveyed, the photographic paper is printed with the left and right chucking rollers. After receiving this, it is marked by changing the posture of each chucking roller. Switched to form the paper hangs down, devices exist to perform the operation of transferring the introduced roller by increasing (see Patent Document 1).

  In this Patent Document 1, when receiving the exposed photographic paper with the chucking roller, the photographic paper is fed until the rear end side is chucked by rotating the chucking roller in the normal direction. By rotating the orientation of the paper 90 degrees, the front and back of the photographic paper are exchanged, and the rear end of the photographic paper is directed upward, and the chucking roller is moved upward while moving toward the corresponding sorting path. Thus, the posture of the photographic paper is fed by feeding it to the introduction roller in a form along the two-row distribution path and bringing the correction roller (the correction mechanism of the present invention) into contact with the photographic paper when raising the chucking roller. Is configured to determine.

JP 2002-55400 A (paragraph numbers [0019] to [0037], FIGS. 3 to 9)

  Assuming that the photosensitive material is wound in a roll shape, curling with a winding rod, depending on the direction of curling, the member constituting the device may come into contact with the photosensitive surface and damage the photosensitive surface, In order to avoid such contact, as described in Patent Document 1, correction in a form in which the photosensitive material chucked by the chucking roller is curved in a preset direction has been considered.

  Considering the configuration of Patent Document 1, in order to continuously correct the photosensitive material even after the photographic paper (photosensitive material) chucked by the chucking roller is delivered to the receiving portion, almost all of the photosensitive material is used. It is necessary to hold the chucking roller at a position in the vicinity of the receiving portion until the portion is transferred to the receiving portion, and this is not an effective control form in consideration of efficient operation. In other words, in order to operate this kind of chucking roller efficiently, after the end of the photosensitive material is transferred to the receiving portion, the chucking roller is separated from the receiving portion and the next photographic paper (photosensitive material). It is desirable that the control can be shifted to the control for receiving), but in such a structure in which the chucking roller is separated from the receiving portion, the correction of the photosensitive material is interrupted, so that the efficient operation cannot be performed.

  Therefore, it is conceivable to provide a straightening roller as a straightening mechanism for the receiving portion, so that the straightening force from the straightening mechanism is continuously applied to the photosensitive material received by the receiving portion. In the case of a device equipped with a correction mechanism, it is expected that the correction mechanism prevents the introduction of the photosensitive material when receiving the photosensitive material, and when the photosensitive material is received, the correction mechanism is retracted from the photosensitive material conveyance path, and after the photosensitive material is received. The necessity of providing a mechanism for setting the correction mechanism to a correctable posture was also considered. In particular, assuming a structure in which the receiving portion is provided with correction rollers as a correction mechanism, it is important that the correction mechanism is reliably separated from the conveyance path of the photosensitive material when the photosensitive material is received.

  It is an object of the present invention to rationally provide a transport device that reliably corrects the posture of a photosensitive material after receiving the end of the photosensitive material without disturbing the reception when the photosensitive material is received in the receiving unit. It is in the point to be configured.

A feature of the present invention is that it includes a transport system that sandwiches the photosensitive material exposed in the exposure unit with a sandwiching mechanism and transports it to the receiving unit of the development processing unit, and contacts the photosensitive material delivered from the sandwiching mechanism in the receiving unit. Then, in a transport device equipped with a correction mechanism for setting the posture of the photosensitive material,
The receiving portion is composed of a receiving roller for pressure-conveying the photosensitive material and a guide member having a guide surface for introducing the photosensitive material to the receiving roller, and the correction mechanism includes an axis of the receiving roller. A correction roller supported by a swing arm swingable around a parallel support shaft, and a first spring for applying a biasing force to the swing arm so as to press the correction roller against the guide surface of the guide member; Configured with
The holding mechanism is configured to transfer the photosensitive material held by moving to the delivery position to the receiving roller, and the clamping mechanism is configured to move the swinging arm or the swinging mechanism until reaching the delivery position. An operating body is provided that sets a retracted position by applying a force to move the correction roller away from the guide surface by coming into contact with a contact piece formed on the arm, and the operating body follows a moving direction of the clamping mechanism. The biasing force of the second spring is applied so as to be displaceable in the direction and protrude toward the swing arm, and the force that maintains the operating body in the protruding state by the biasing force of the second spring is The biasing force of the first spring is set to be stronger than the force with which the correction roller presses against the guide surface.

  With this configuration, after the photosensitive material is delivered from the clamping mechanism to the receiving roller, the correction roller biased by the first spring contacts the photosensitive material and is brought into pressure contact with the guide surface of the guide member. The posture of the photosensitive material can be corrected. Further, when the photosensitive material is transferred from the clamping mechanism to the receiving roller, the operating body provided in the clamping mechanism comes into contact with the swing arm of the correction roller or a contact piece formed on the swing arm, Since the correction roller is separated from the guide surface of the guide member, the correction roller does not hinder delivery of the photosensitive material. Further, the operating body is supported so as to be displaceable along the moving direction of the clamping mechanism, and is biased in the projecting direction by the second spring, and the force that maintains the projecting state by the biasing force of the second spring is Since the correction roller is set to be stronger than the force that presses against the guide surface by the urging force of the first spring, for example, the inconvenience that the operating body is displaced first and thereafter the correction roller swings is avoided. Thus, the correction roller can be reliably separated from the guide surface at the initial stage of operation. As a result, when receiving the photosensitive material in the receiving portion, this acceptance is not hindered, and after receiving the end portion of the photosensitive material, a conveying device that reliably corrects the posture of the photosensitive material is rationally configured. It was done.

  In the present invention, the swing member is configured to include an operated shaft that is parallel to the support shaft as the contact piece, and the operating body has a longitudinal direction along a moving direction of the clamping mechanism. It is composed of an operating rod in a posture, and a contact portion that contacts the operated shaft is formed at the tip position of the operating rod. It may be formed as an inclined surface that generates a component force that causes the swing arm to swing in the direction of moving the correction roller away from the guide surface when swinging about the support shaft.

  With this configuration, when the photosensitive material is transferred from the clamping mechanism to the receiving roller, the inclined surface formed on the contact portion of the operation rod as the operating body contacts the operated shaft, and the operated surface is operated from the inclined surface. Since the component force in the direction of swinging the swing arm is applied to the shaft, it is possible to positively swing the correction roller toward the direction away from the guide surface of the guide member.

  In the present invention, the photosensitive material is formed by cutting a long material wound up in a roll shape into a set size, and the direction of the guide member on the side approaching by the winding of the photosensitive material Alternatively, the pressing direction of the correction roller may be set.

  With this configuration, when the correction roller is pressed against the photosensitive material, the photosensitive material is displaced in the direction in accordance with the winding of the photosensitive material and brought into contact with the guide surface of the guide member. .

  The present invention includes a reverse mechanism that receives the photosensitive material fed from the exposure unit in the horizontal direction and discharges the photosensitive material upward in a state where the front and back sides are reversed, and the clamping mechanism is the photosensitive material that is discharged from the reverse mechanism. A pair of sandwiching rollers configured to reciprocate between a standby position for receiving the material and the delivery position above the standby position may be provided.

  With this configuration, the photosensitive material exposed in the exposure unit and sent out in the horizontal direction is reversed by the reverse mechanism and then discharged upward. The photosensitive material thus discharged is put on standby at a standby position. Further, the photosensitive material can be delivered to the receiving roller by raising the clamping mechanism and setting it to the delivery position. In other words, the photosensitive material can be reversed and transported without employing a complicated structure such as a conventional technique in which the photosensitive material is nipped and then transported while being reversed.

  The present invention provides a feed operation in which the clamping mechanism linearly moves the photosensitive material delivered from the reverse mechanism toward the receiving portion, and a shift operation in which the clamping mechanism moves in a direction perpendicular to the feed operation direction. In addition, after receiving the photosensitive material from the reverse mechanism, the photosensitive material is distributed and sent to a plurality of distribution paths by performing the feed operation and the shift operation. Also good.

  With this configuration, the photosensitive material delivered from the reverse mechanism can be distributed to a plurality of distribution paths by performing a feed operation and a shift operation using the clamping mechanism. Accordingly, for example, the photosensitive material can be distributed at high speed by combining a single reverse mechanism and a single clamping mechanism.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Configuration of photo printing device]
As shown in FIG. 1, a photographic printing apparatus includes an operating unit A and a print processing unit B. The operating section A includes a film scanner 3 that captures image information of the photographic film 1 into three primary colors R, G, and B and converts it into a digital signal, a display 4 that displays processing information, and a keyboard 5. A processing device 7 comprising a general-purpose computer is provided on the upper surface and below the table 6. The processing device 7 includes a media drive 8 that acquires image data recorded on a CD-R, DVD-R, or the like, or image data recorded on a semiconductor medium.

  The print processing unit B cuts the photographic paper 2 as the photosensitive material into a print size in the exposure unit EX, and then exposes the image data. After this exposure, the print unit B is reversed in the vertical conveyance device CV to replace the front and back sides. In the state, it is transported upward and sent to the development processing unit DE, subjected to development processing in a plurality of development processing tanks of the development processing unit DE, dried by the drying processing unit DR, and then sent onto the conveyor belt 9, and further conveyed to the conveyor belt 9 9 is sent out to a sorter (not shown). The reason why the front and back sides of the photographic paper 2 are reversed in the vertical conveying device CV is that the image surface (photosensitive surface) is positioned on the upper surface side of the photographic paper 2 fed from the conveyor belt 9 to the sorter.

  The exposure unit EX feeds the photographic paper 2 (an example of a photosensitive material) from the photographic paper magazine M with a pressure supply roller 11, cuts it into a print size with a cutter 12, and horizontally with a nipping-type lateral conveyance device 13. Image data in a form in which the laser beam from the exposure unit Em is operated in the main scanning direction while the photographic paper 2 is conveyed in the sub-scanning direction in the exposure unit Em. The exposure is performed. As shown in FIG. 2, the exposure unit Em includes an exposure engine 15 that sends laser beams of three primary colors of R (red), G (green), and B (blue) downward, and the lateral transfer device 13. A press-fitted carry-in roller 16 that receives the photographic paper 2 from the image sensor, and a pair of exposure conveyance rollers 17 disposed on the upper conveyance side and the lower conveyance side of the photographic paper 2 with reference to the beam emitting portion 15a of the exposure engine 15. And a driven roller 18.

  Further, as shown in FIGS. 5 and 6, the exposure transport roller 17 is disposed in such a manner as to be fitted into an opening 19A formed in the guide plate 19 for guiding the driven roller 18 and the photographic paper 2, and the opening 19A Of these, in the opening 19A in which the upstream exposure / conveying roller 17 is disposed, an inclined portion for suppressing vibration caused by a drop when the rear end of the photographic paper 2 passes in an upstream portion in the conveyance direction of the photographic paper 2. 19B is formed, and an inclined portion 19C for smoothly guiding the photographic paper 2 is formed in a downstream portion of the opening in the conveyance direction of the photographic paper.

[Structure of vertical transfer device]
As shown in FIGS. 2 to 4, the vertical conveying device CV receives the photographic paper 2 sent out from the exposure unit Em in a single row in the horizontal direction, and reverses the photographic paper 2 in a state where the front and back sides of the photographic paper 2 are reversed. A mechanism R is provided, and a single clamping mechanism C to which the photographic paper 2 discharged from the reverse mechanism R is delivered is provided. When the size of the photographic paper 2 delivered from the reverse mechanism R at the standby position W is less than a preset size, the clamping mechanism C removes the two photographic papers 2 as shown in FIG. The transfer mechanism LS distributes and conveys the sheet to the distribution path LS, and performs an operation (operation in the distribution mode) of feeding to the receiving roller 80 provided in the receiving unit D (an example of the receiving unit) at the transfer position T. When the size of the photographic paper 2 delivered from the reverse mechanism R at the position W is equal to or larger than a preset size, as shown in FIG. 7, the vertical conveyance path at the center position without sorting the photographic paper 2 Constructed to perform an operation of transporting upward in the LC and feeding it to the receiving roller 80 provided in the receiving unit D at the transfer position T (operation in the single row transport mode). It has been. The photographic paper 2 received by the receiving roller 80 is sent to the development processing unit DE.

  The clamping mechanism C drives the clamping mechanism C in a vertical direction (a direction parallel to the sorting path LS), and drives the clamping mechanism C in a lateral direction (a direction orthogonal to the sorting path LS). And a shift unit S, which constitute a sorting unit.

  The vertical conveying device CV includes a plate-shaped main frame 21, supports the reverse mechanism R with respect to a pair of bracket portions 21 a integrally formed by bending the main frame 21, and the main frame 21. 2 includes two first guide rods 31 in a vertical orientation at the outer measuring portion of the two distribution paths LS, and the both ends are supported by the respective first guide rods 31 so as to be movable in the vertical direction. A frame 32 is provided, and the clamping mechanism C is provided so as to reciprocate in the lateral direction with respect to the transport frame 32.

[Reverse mechanism structure]
As shown in FIG. 2 to FIG. 6 and FIG. 9, the reverse mechanism R includes a rotating frame 22 that is rotatably supported around the first axis X1 in a lateral posture with respect to the bracket portion 21a. The rotating frame 22 includes a driving roller 23, a pressure roller 24 opposed to the driving roller 23, and a swing frame 25 that supports the pressure roller 24. The frame 22 is supported so as to be swingable around the second axis X2 in a posture parallel to the first axis X1.

  Further, the reverse mechanism R has a “reception posture” for receiving the photographic paper 2 sent out from the exposure unit EX as shown in FIG. 5 by turning 90 degrees around the first axis X1, and FIG. As shown in the drawing, it is configured to be switchable to a “discharge posture” in which the photographic paper 1 is sent upward by rotation around the first axis X1, and when the photographic paper 2 is received in the “receiving posture”, the drive roller The photographic paper 2 is introduced by driving 23 in the forward direction, and after this introduction, when switching to the “discharging posture”, the driving roller 23 is driven in the reverse direction to drive the photographic paper 2 to the rear end. The paper is discharged from the side, thereby functioning to reverse the front and back of the photographic paper 2.

  The support shaft 23a of the drive roller 23 is supported by the bracket portion 21a, and the shaft center position of the support shaft 23a of the drive roller 23 is made to coincide with the first shaft core X1, and is fixed to the rotating frame 22. The timing belt B1 is wound between the timing pulley type rotation pulley P1 and the output shaft of the stepping motor type rotation motor M1, so that the rotation frame 22 is driven by the driving force from the rotation motor M1. The “accepting posture” and the “discharging posture” are switched.

  By winding a timing belt B2 between a timing pulley type driving pulley P2 provided at one end of the support shaft 23a of the driving roller 23 and a stepping motor type driving motor M2, a driving motor M2 is wound. The driving roller 23 is configured to be freely driven in the forward and reverse directions by the driving force.

  As shown in FIG. 9, a swing operation shaft 26 for swinging the swing frame 25 is disposed on the same axis as the second axis X 2, and an operation arm 27 is attached to the shaft end of the swing operation shaft 26. A biasing force of a spring 28 is applied to the operation arm 27, and an idler roller 29 functioning as a cam follower is supported at the swinging end of the operation arm 27, and a rotating cam 30 corresponding thereto is provided. ing. The timing cam B3 is wound between a timing pulley type rotary pulley P3 connected to the rotary cam 30 and a stepping motor type cam motor M3, so that the rotary cam 30 can be rotated. . A guide plate 25a is provided for the swing frame 25, and a pair of compression coil springs 22s for biasing the pressure roller 24 supported by the swing frame 25 toward the drive roller 23 is provided.

  With this configuration, the idle roller 29 is pressed against the cam surface of the rotating cam 30 by the biasing force of the spring 28, and the operation arm 27 is swung according to the shape of the cam surface when the idle roller 29 and the rotating cam 30 are rotated relative to each other. Thus, a state in which the pressure roller 24 is pressed against the driving roller 23 and a state in which the pressure roller 24 is separated from each other (retraction position) are shown.

  The cam surface of the rotary cam 30 is composed of a small-diameter surface 30a having the smallest radius, a medium-diameter surface 30b having a larger diameter, and a large-diameter surface 30c having the largest diameter. When the idle roller 29 is in contact, the pressure roller 24 is pressed against the drive roller 23, and when the idle roller 29 is in contact with the medium diameter surface 30 b, the pressure roller 24 is slightly from the drive roller 23. In the state where the idle roller 29 is in contact with the large diameter surface 30c, the pressure roller 24 is greatly separated from the drive roller 23.

  Further, a shaft 45 on the opposite side of the drive pulley P2 of the support roller 23a of the drive roller 23 is provided with a knob 45 that is artificially rotated, and is further swingable with respect to the support shaft 23a. The bracket 46 is idled and supported, and a spring 47 that biases the bracket 46 is provided. The output gear G1 that rotates together with the support shaft 23a and the intermediate gear G2 that idles and supports the bracket 46 are engaged with each other. Although not shown in the drawings, the print processing section B includes a door that can be opened and closed on the side where the knob 45 is disposed.

[Structure of sorting device]
As shown in FIGS. 3 and 4, linear bushings 33 slidably fitted to the first guide rod 31 are provided at both end positions of the transport frame 32 to support the transport frame 32 so as to be movable in the vertical direction. is doing. The main frame 21 is provided with a connecting shaft 34 in a lateral orientation at an upper position, and a timing belt B4 wound around a timing pulley type linkage pulley 34P formed at both ends of the connecting shaft 34 is parallel to the first guide rod 31. The timing belt B4 is connected to both ends of the transport frame 32. A stepping motor type feed motor M4 for driving the one timing belt B4 is provided, and the conveying frame 32 can be moved up and down in a horizontal posture by the driving force of the feed motor M4.

  The clamping mechanism C includes a first clamping roller 35 that is maintained in a pressure-bonded state, a second clamping roller 36, and a pair of guide plates 37 that are vertically oriented to guide the photographic paper 2. The first and second clamping rollers 35 and 36 and the guide plate 37 are supported by a shift frame 38. The pair of guide plates 37 are arranged at positions close to both the front and back surfaces of the photographic paper 2 sandwiched by the first and second sandwiching rollers 35 and 36, and are arranged at the upper end of the central portion in the width direction. Forms a pair of protrusions 37a. The protruding portion 37a is disposed at a position where it enters an intermediate position between the roller portions 80b of the receiving roller 80 of the receiving unit D described later.

  Two slide members 40 are slidably fitted to guide rails 39 provided in the transport frame 32 in a lateral orientation, and the shift frame 38 is attached to the two slide members 40 via an intermediate frame 48. By supporting, the clamping mechanism C is supported so as to be reciprocally movable in the lateral direction. Specifically, as shown in FIG. 13 and FIG. 14, the overall cross-sectional shape of the transport frame 32 is set to a channel shape, and a part of the vertical wall portion of the transport frame 32 is bulged. The intermediate frame 48 is fixed to the slide member 40 by a screw 49 that forms a mounting surface 32a of the guide rail 39 and is screwed into a screw hole 40b of the slide member 40 supported by the guide rail 39. Further, a cross-shaped opening 48a is formed in the intermediate frame 48, and a hole 48b through which the screw 49 is inserted is formed in the vicinity of the opening 48a, so that the two slide members 40 are not in a parallel posture. In addition, no distortion is generated by elastic deformation of the intermediate frame 48 in the vicinity of the opening 48a.

  A timing belt B5 is wound around an output shaft of a shift motor M5 provided at one end of the conveyance frame 32 and a pulley P5 supported by the conveyance frame 32, and the timing belt B5 is connected to the shift frame 38. By fixing, the clamping mechanism C is configured to be shiftable in the horizontal direction by the driving force of the shift motor M5. The shift means S is composed of a shift operation system composed of the shift motor M5 and the timing belt B5, and the feed means F is composed of a feed operation system composed of the feed motor M4 and the timing belt B4.

  As shown in FIG. 11A, a support frame 32F is formed on the transport frame 32 on the side opposite to the side provided with the shift motor M5, and is coaxial with the axis of the first clamping roller 35. The transport frame 32 includes a shaft body 41 that is relatively movable in the axial direction and is slidable in the axial direction relative to the first clamping roller 35 and that rotates integrally with the first clamping roller 35. ing. The support frame 32F supports a passive gear G3 that meshes with the intermediate gear G2 and an input gear G4 that meshes with the passive gear G3, and connects the input gear G4 and the shaft body 41. Further, the shaft portion of the passive gear G3 is provided with a contact sleeve 42, and the shaft portion of the input gear G4 is provided with a ratchet mechanism comprising a rotation preventing claw wheel 43 and a claw body 44.

  From this configuration, by moving the transport frame 32 to the lower moving end, the guide surface 46a formed at the end of the bracket 46 contacts the contact sleeve 42 as shown in FIG. By swinging the bracket 47 against the urging force of the spring 47, the passive gear G3 is engaged with the intermediate gear G2 so as not to generate an impact. When G2 and the passive gear G3 mesh with each other, the driving force from the reverse mechanism R is transmitted to the first clamping roller 35 of the clamping mechanism C, and the photographic paper 2 can be conveyed by the clamping mechanism C. .

  As shown in FIGS. 7, 8, 12, 15, and 16, a pair of operating rods 51 (an example of an operating body) projecting upward with respect to the shift frame 38 are compressed coil springs 52 (second springs). It is provided so as to protrude upward by the urging force of (example). A contact portion 51 a is formed at the upper end of the operation rod 51.

  The receiving unit D supports the pressure receiving roller 80 with respect to the receiving frame 71 disposed at the upper end position of the main frame 21 and sandwiches an opening in the lower surface of the receiving frame 71. On one side, a resin guide member 72 is provided. A pair of correction rollers 65 for pressing the photographic paper 2 against the guide surface 72 a of the guide member 72 is provided at a position facing the guide member 72. That is, the two swing arms 64 are supported by the receiving frame 71 so as to be swingable around the support shaft 63 in a posture parallel to the first and second axis X1 and X2, and the swing arms 64 are respectively supported. Is a free-rotating support for the correction roller 65 so as to be rotatable around an axis parallel to the first and second axis X1 and X2, and a pair of postures parallel to the first and second axis X1 and X2. A biasing force from a torsion spring 68 (an example of a first spring) that biases the correction roller 65 toward the guide surface 72a of the guide member 72 is formed. It is acting. The correction roller 65, the swing arm 64, the support shaft 63, the operated shaft 66, and the torsion spring 68 constitute a correction mechanism.

  In addition, the receiving frame 71 is formed with recesses that support both ends of the support shaft 63 of the correcting roller 65, and the pressing roller 69 is fixed to the receiving frame 71 with screws 70 so that the correcting roller 65 is The receiving frame 71 is swingably supported so as to be swingable. The torsion spring 68 is disposed at a position where the torsion spring 68 is wound around the support shaft 63. One end of the torsion spring 68 is engaged with the swing arm 64, and the other end is fixed to the receiving frame 71. I have been in contact with. An opening 69a that allows the other end of the torsion spring 68 to be inserted into the pressing plate 69, a bent portion 69b that prevents the end introduced from the opening 69a from dropping off, and a fixing screw 70 are inserted therethrough. A pair of holes 69c is formed.

  As shown in FIG. 17B, the correction roller 65 has a correction posture that presses against the guide surface 72a of the guide member 72 and the operation rod 51 with respect to the operated shaft 66 as shown in FIG. It is configured to be switchable to a retracted position separated from the guide surface 72a by contact. When the clamping mechanism C moves (rises) along the vertical conveyance path LC, the pair of operation rods 51 are moved with respect to the operated shaft 66 projecting inward from the left and right correction rollers 65. When the contact portion 51a contacts and switches the left and right correction rollers 65 to the retracted position at the same time, and when the clamping mechanism C moves (rises) along the distribution path LS, the correction rollers 65 at the corresponding positions. The relative positional relationship is set so that the contact portions 51a of the pair of operating rods 51 come into contact with the pair of operated shafts 66 and the corresponding correction roller 65 is switched to the retracted position.

  The biasing force of the compression coil spring 52 (second spring) keeps the operating rod 51 in a protruding state, and the biasing force of the torsion spring 68 (first spring) causes the correction roller 65 to contact the guide surface 72a. When the clamping mechanism C is raised by setting the relative biasing force of the two springs as described above, the torsion spring is set as shown in FIG. The correction roller 65 is first set in the retracted position against the urging force 68, and then the operation rod 51 is switched to the compressed state against the urging force of the compression coil spring 52 as shown in FIG. It has become a thing.

  In addition, the upper surface of the contact portion 51a is generated in a direction that intersects the operating direction of the operation rod 51 when the swing arm 64 swings about the support shaft 63 by contact with the operated shaft 66. The inclined surface 51s is used to apply force in the direction of force application. That is, in the direction view shown in FIG. 12, when the swing arm 64 is swung to the retracted position side, the operated shaft 66 is lifted upward, but the operated shaft 66 moves in an arc. Therefore, in the initial stage when the operating rod 51 comes into contact, the operated shaft 66 includes a moving component that moves in a direction away from the guide surface 72a. For this reason, by setting the inclination direction of the inclined surface 51s so that the operated shaft 66 is separated from the guide surface 72a, the swing arm 64 is actively swung by the operation force from the operation rod 72. Thus, the correction roller 65 can be switched to the retracted position.

  As shown in FIG. 3, the receiving roller 80 includes a shaft portion 80 a and a plurality of roller portions 80 b that rotate integrally with the shaft portion 80 a, and the guide member 72 receives the photographic paper 2 in the direction of the receiving roller 80. A guide surface 72a having a slanted cross-sectional shape is formed so as to be guided in the direction.

  As shown in FIGS. 3 and 4, a control unit 90 for controlling the rotation motor M1, the drive motor M2, the cam motor M3, the feed motor M4, and the shift motor M5 is provided below the main frame 21, A control cable 91 is provided at the end position of the transport frame 32, and only a hanging portion of the control cable 91 from the transport frame 32 is lifted and lowered integrally with the transport frame 32 via a fixing member 92. By fixing, the configuration of the control cable 91 is prevented from being disturbed.

  Although not shown in the drawing, the part to which the photographic paper 2 of the vertical conveying device CV is fed is provided with a sensor for determining whether or not the photographic paper 2 is present, and a detection signal from this sensor is input to the control unit 90. The control unit 90 executes control for conveying the photographic paper 2 in a preset sequence based on the signal from the sensor. The control unit 90 functions as a conveyance control unit that conveys the photographic paper 2 by the reverse mechanism R, and also functions as a distribution control unit that controls the distribution unit to distribute the photographic paper 2. The operation mode is as described later.

[Transfer sequence]
When the photographic paper 2 is conveyed by the vertical conveying device CV, the rotating frame 22 of the reverse mechanism R is previously shown in FIG. 5 by the driving force from the rotating motor M1 before the photographic paper 2 is sent out from the exposure unit Em. As shown in FIG. 10 (a), the pressure roller 24 is driven by bringing the idler roller 29 into contact with the inner diameter surface 30b of the rotating cam 30 by the driving force from the cam motor M3. The posture is set slightly apart from the roller 23.

  When the photographic paper 2 is sent out from the exposure unit Em in this setting state, the photographic paper 2 is in a state of being pressure-bonded by the exposure conveyance roller 17 and the driven roller 18 of the exposure unit Em, so as not to generate banding. After the rear end of the photographic paper 2 has passed through the exposure position in the exposure unit Em, the drive motor M2 is driven to rotate forward to start the rotational drive of the drive roller 23, and substantially simultaneously with the drive from the cam motor M3. By setting the rotating cam 30 to the posture shown in FIG. 10B by the driving force from the cam motor M3 by force, the pressure roller 24 is driven in a state where the idle roller 29 is in contact with the small-diameter surface 30a of the rotating cam 30. The photographic paper 2 is crimped by the pressure roller 24 and the driving roller 23, and the photographic paper 2 is sent out from the exposure unit Em. Introducing the printing paper 2 relative to the rotating frame 22 at a speed synchronized with the speed.

  By continuing the introduction, the drive motor M2 is stopped at the timing when the photographic paper 2 is fed until the rear end of the photographic paper 2 slightly protrudes from the guide plate 25a. In this stop state, the rotating frame 22 is rotated 90 degrees by the driving force from the rotating motor M1, so that the rotating frame 22 is set to the “ejection posture” as shown in FIG. Is directed upward and the leading end portion of the photographic paper 2 hangs downward. Further, when the rotating frame 22 is rotated 90 degrees in this way, the idle roller 29 is kept in contact with the small diameter surface 30a of the rotating cam 30, as shown in FIG. The state in which the photographic paper 2 is pressure-bonded by the roller 23 and the pressure roller 24 is maintained.

  After the rotation frame 22 is set to the “discharge posture” as described above, the shift frame 38 is moved to the center position in the lateral direction of the transport frame 32 (on the extension of the vertical transport path LC) by the driving force from the shift motor M5. The conveying frame 32 is lowered to the lower end by the driving force from the feed motor M4 and the holding mechanism C of the shift frame 38 is set at the standby position W. When the clamping mechanism C is set at the standby position W as described above, the intermediate gear G2 and the passive gear G3 reach the meshing state as shown in FIG.

  In this state, when the drive motor M2 is driven in the reverse direction, the drive roller 23 and the pressure roller 24 rotate in the direction of discharging the photographic paper 2, and the power transmitted from the intermediate gear G2 and the passive gear G3 is linked with this rotation. The first clamping roller 35 and the second clamping roller 36 of the clamping mechanism C rotate in a direction in which the photographic paper 2 is conveyed upward. As a result, the photographic paper 2 that has been pressure-bonded to the drive roller 23 and the pressure roller 24 is discharged from the rotating frame 22 and delivery to the clamping mechanism C is started. Further, when the photographic paper 2 is discharged from the rotating frame 22 in this way, after the photographic paper 2 is securely clamped by the first clamping roller 35 and the second clamping roller 36 of the clamping mechanism C, the cam motor M3 By setting the rotary cam 30 to the posture shown in FIG. 10D with the driving force of FIG. 10, the idle roller 29 is pushed up by the large-diameter surface 30 c of the rotary cam 30. The resistance acting on the photographic paper 2 from the drive roller 23 or the pressure roller 24 is reduced.

  Further, when the photographic paper 2 is nipped by the first nipping roller 35 and the second nipping roller 36, the nipping position is set at the center position in the width direction of the photographic paper 2 in the sorting conveyance mode and the single row conveyance mode, which will be described later. In this sandwiched state, the photographic paper 2 is disposed at a position sandwiched between the pair of guide plates 37.

  As described above, after the photographic paper 2 from the rotating frame 22 is transferred to the first nip roller 35 and the second nip roller 36 of the nip mechanism C, the photographic paper 2 starts from the upper end of the guide plate 37 provided in the shift frame 38. Is stopped after continuing the reverse drive of the drive motor M2 until a preset amount is exposed, whereby the photographic paper 2 is pinched only by the first and second pinching rollers 35 and 36 of the pinching mechanism C. In this clamping state, the ratchet mechanism including the claw wheel 43 and the claw body 44 functions so that the first clamping roller 35 and the second clamping roller 36 do not rotate due to the weight of the photographic paper 2.

  When the conveying frame 32 is moved up and down by the driving force from the feed motor M4 as described above, the pair of timing belts B4 operate in synchronization with the connecting shaft 34, so that a biased conveying force is applied to the conveying frame 32. Since both ends of the transport frame 32 are guided by the first guide rod 31, the transport frame 32 can be smoothly moved up and down while being maintained in a horizontal posture.

  The transport sequence for transferring the photographic paper 2 from the rotating frame 22 to the clamping mechanism C is common regardless of the size of the photographic paper 2, but the width of the photographic paper 2 is less than a preset dimension. In this case, transport in the sorting transport mode is performed, and transport in the single-row transport mode is performed when the width of the photographic paper 2 is equal to or larger than a preset dimension.

[Distributed transfer mode]
When the width of the photographic paper 2 is less than a preset size, the conveying frame 32 is raised by the driving force from the feed motor M4 and at the same time the shift frame 38 is moved to the 2 by the driving force from the shift motor M5. One of the two distribution paths LS is operated. When the transport frame 32 is lifted and the shift frame 38 is operated, the operation of placing the shift frame 38 on the distribution path LS is completed first, and then the transport frame 32 is lifted. As a result of the ascending, the contact portion 51a at the tip of the operation rod 51 comes into contact with the corresponding operated shaft 66 and pushes it up. As a result, the correction roller 65 is swung around the support shaft 63 to the retracted position, and the photographic paper 2 passes. Open the route.

  Thereafter, when the clamping mechanism C reaches the delivery position T shown in FIGS. 8A and 8B on the one distribution path LS, the receiving roller 80 of the receiving unit D holds the upper end portion of the photographic paper 2. Delivery is performed in such a manner that the photographic paper 2 is extracted from the clamping mechanism C by pressure bonding. After the transfer of the photographic paper 2 is completed as described above, the guide roller 32 is lowered, so that the correction roller 65 located at the retracted position by the contact force from the operation rod 51 is applied to the guide by the urging force of the torsion spring 69. It swings toward the member 72 side and pushes in the direction of the guide member 72 in a form in which the hanging portion of the photographic paper 2 is curved.

  Further, when the transport frame 32 is lowered, the shift frame 38 is set at the standby position W as described above in a state where the shift frame 38 is set at the center position in the lateral direction of the transport frame 32 (coincident with the vertical transport path LC). As a result, the photographic paper 2 discharged from the rotating frame 22 is received. When the next photographic paper 2 is received in this way, the photographic paper 2 is transferred on the other distribution path LS of the two distribution paths LS by operating the shift frame 38 in the reverse direction. Become. In this way, by alternately distributing the photographic paper 2 to the two distribution paths LS, the photographic paper 2 is sent to the development processing unit DE in two rows, thereby realizing efficient development processing.

(Single row transfer mode)
When the width of the photographic paper 2 is equal to or larger than a preset dimension, the conveying frame 32 is raised by the driving force from the feed motor M4, and the contact portion 51a at the tip of the operation rod 51 is moved left and right by this raising. By pushing up against the driven shaft 66, the right and left correction rollers 65 are swung to the retracted position around the support shaft 63, and the path through which the photographic paper 2 passes is opened. That is, as shown in FIG. 7A, when the clamping mechanism C is set to the standby position W, the clamping mechanism C is positioned on the vertical conveyance path LC, so that the photographic paper 2 is loaded in the single-line conveyance mode. When transporting, control is performed to simply raise the transport frame 32 with the photographic paper 2 being sandwiched by the sandwiching mechanism C.

  Thus, even when the transport frame 32 is simply raised, the relative positions of the guide plate 37 and the guide member 72 so that the photographic paper 2 held by the holding mechanism C passes through the vicinity of the guide member 72. The relationship is set so that the photographic paper 2 can be smoothly fed to the receiving roller 80.

  Further, the photographic paper 2 sandwiched between the first and second sandwiching rollers 35 and 36 of the sandwiching mechanism C has its photosensitive surface directed toward the main frame 21, and this photographic paper 2 is photosensitive in the photographic paper magazine M. Since the surface of the photographic paper 2 is stored in a roll shape on the outer side, the direction in which the upper end of the photographic paper 2 sandwiched between the first and second sandwiching rollers 35 and 36 is curved away from the main frame 21 The side to do.

  Thereafter, when the clamping mechanism C reaches the delivery position T shown in FIG. 7B, the receiving roller 80 of the receiving unit D presses the upper end portion of the photographic paper 2 so that the photographic paper 2 is removed from the clamping mechanism C. Delivery in the form of extraction is executed.

  Further, in any of the transport modes of the sorting transport mode and the single-row transport mode, before the photographic paper 2 is transferred to the receiving roller 80, the operation rod 51 is attached to the corresponding operated shaft 66 as shown in FIG. When the contact is made, the corresponding correction roller 65 is switched to the retracted position, and the introduction of the photographic paper 2 is allowed. However, the biasing force of the compression coil spring 52 and the torsion spring 68 is set as described above. Thus, at the initial stage when the contact portion 51b of the operation rod 51 contacts the operated shaft 66, the correction roller 65 is surely switched to the retracted position, and the inclined surface 51s formed on the contact portion 51a with respect to the operated shaft 66 , The correction roller 65 is positively switched to the retracted position, and the correction roller 65 can be set to the retracted position more reliably.

  After this operation, the clamping mechanism C reaches the delivery position T as shown in FIG. 17A, so that the photographic paper 2 can be delivered reliably, and after the delivery of the photographic paper 2 is completed, the transport frame 32 As shown in FIG. 17B, the correction roller 65 that has been in the retracted position is swung toward the guide member 72 by the urging force of the torsion spring 69 as shown in FIG. Then, the hanging portion of the photographic paper 2 is pushed in the direction of the guide member 72 in a curved form.

  Thus, in the present invention, after the photographic paper 2 (photosensitive material) is transferred from the clamping mechanism C to the receiving roller 80, the correction roller 65 biased by the torsion spring 68 contacts the photographic paper and guides it. By pressing the guide 72 against the guide surface 72a of the member 72, the posture of the photographic paper 2 can be corrected. Further, when the photographic paper 2 is transferred from the clamping mechanism C to the receiving roller 80, the correction rod 65 is brought into contact with the operated shaft 66 by the operation rod 51 (operation body) provided in the clamping mechanism C. Is retracted from the guide surface 72a of the guide member 72, so that the correction roller 65 does not hinder delivery of the photosensitive material. Further, the operating rod 51 is supported so as to be displaceable along the moving direction of the clamping mechanism C, and is urged in the protruding direction by the compression coil spring 52, and the force that maintains the operating rod 51 in the protruding state by the urging force of the compression coil spring 52. Is set stronger than the force by which the correction roller 65 is pressed against the guide surface 72a by the urging force of the torsion spring 68, for example, the operating rod 51 is displaced first, and thereafter the correction roller 65 is swung. By avoiding the inconvenience of moving, the correction roller 65 is reliably separated from the guide surface, so that the photographic paper 2 can be reliably introduced.

  Further, when the photographic paper 2 (photosensitive material) is transferred from the clamping mechanism C to the receiving roller 80, the inclined surface 51s formed on the contact portion 51a of the operation rod 51 contacts the operated shaft 66. Since the component force in the direction of swinging the swing arm 64 is applied to the operated shaft 66 from the inclined surface 51s, the correction roller 65 is positively directed toward the direction of separating the correction roller 65 from the guide surface 72a of the guide member 72. Thus, the photographic paper 2 can be introduced more reliably.

[Another embodiment]
The present invention may be configured as follows in addition to the embodiment described above.

(A) It is possible to configure the operating body with an arm or the like that is swingably supported with respect to the clamping mechanism, and it is possible to use a tension coil spring or rubber as the torsion spring as the second spring. is there. Alternatively, the correction roller may be switched to the retracted position by bringing the operating body into direct contact with the swing arm.

(B) It is possible to use a coil spring or rubber as the first spring for biasing the correction roller to the guide surface.

Configuration diagram of photo printing device Vertical front view showing exposure unit and vertical transport device Side view of vertical conveyor Perspective view of vertical conveyor Longitudinal front view of the vertical transfer device with the reverse mechanism set to the accepting posture Longitudinal front view of the vertical transfer device with the reverse mechanism set to the discharge posture Diagram showing how photographic paper is transported along the vertical transport path The figure which shows the conveyance form of the photographic paper to the distribution route Schematic diagram showing the structure of the reverse mechanism The figure which shows the operation form of the reverse mechanism continuously Front view showing the gear structure that transmits power from the reverse mechanism to the clamping mechanism The figure which shows the initial state where the operating rod touches the operated shaft An exploded perspective view showing a structure for connecting an intermediate frame to a slide member The figure which shows the state which connected the intermediate frame to the slide member The exploded perspective view which shows the support structure of the guide roller with respect to a receiving frame The top view which shows the support structure of the guide roller with respect to a receiving frame The figure which shows the state set to the delivery position in the clamping mechanism, and the state lowered from the delivery position

Explanation of symbols

2 Photosensitive materials 35, 36 Nipping roller 51 Operation body 51a Contact portion 51s Inclined surface 52 Second spring 63 Support shaft 64 Oscillating arm 65 Correction roller 66 Contacting piece / operated shaft 68 First spring 72 Guide member 72a Guide surface 80 Receiving roller C Nipping mechanism D Receiving part R Reverse mechanism W Standby position T Delivery position DE Development processing part EX Exposure part LS Sorting path

Claims (5)

A photosensitive system that includes a conveyance system for nipping the photosensitive material exposed at the exposure unit by a nipping mechanism and conveying the photosensitive material to a receiving unit of the development processing unit, and contacting the photosensitive material delivered from the nipping mechanism at the receiving unit. A transport device having a correction mechanism for setting the posture of
The receiving portion is composed of a receiving roller for pressure-conveying the photosensitive material and a guide member having a guide surface for introducing the photosensitive material to the receiving roller, and the correction mechanism includes an axis of the receiving roller. A correction roller supported by a swing arm swingable around a parallel support shaft, and a first spring for applying a biasing force to the swing arm so as to press the correction roller against the guide surface of the guide member; Configured with
The holding mechanism is configured to transfer the photosensitive material held by moving to the delivery position to the receiving roller, and the clamping mechanism is configured to move the swinging arm or the swinging mechanism until reaching the delivery position. An operating body is provided that sets an open posture by applying a force to move the correction roller away from the guide surface by coming into contact with a contact piece formed on the arm, and the operating body follows a moving direction of the clamping mechanism. The biasing force of the second spring is applied so as to be displaceable in the direction and protrude toward the swing arm, and the force that maintains the operating body in the protruding state by the biasing force of the second spring is A conveying device in which the correction roller is set to be stronger than the force that presses against the guide surface by the biasing force of the first spring.   The swing member is configured to include an operated shaft that is in a posture parallel to the support shaft as the contact piece, and the operation body has an operation rod in a posture in which the longitudinal direction is along the moving direction of the clamping mechanism. And a contact portion that contacts the operated shaft is formed at the tip position of the operating rod, and the contact portion is configured so that the swing arm is moved by the contact with the operated shaft. The conveying device according to claim 1, wherein the conveying device is formed as an inclined surface that generates a component force that causes the swing arm to swing in a direction in which the correction roller is separated from the guide surface when swinging about the center.   The photosensitive material is formed by cutting a long material wound up in a roll shape into a set size, and the correction roller in the direction of the guide member on the side approached by the winding of the photosensitive material The conveying device according to claim 1 or 2, wherein the pressure contact direction is set.   A reverse mechanism for receiving the photosensitive material sent out from the exposure unit in a horizontal direction and discharging the photosensitive material upward in a state where the front and back sides are reversed; and the holding mechanism is on standby for receiving the photosensitive material discharged from the reverse mechanism The conveying apparatus according to claim 1, further comprising a pair of clamping rollers configured to reciprocate between a position and the delivery position above the standby position. .   The clamping mechanism is configured to perform a feed operation in which the photosensitive material delivered from the reverse mechanism moves linearly toward the receiving portion, and a shift operation in which the photosensitive material is moved in a direction perpendicular to the feed operation direction. 5. After the photosensitive material is received from the reverse mechanism, the photosensitive material is distributed and sent to a plurality of distribution paths by performing the feed operation and the shift operation. The conveying apparatus as described.

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