JP3875942B2 - Roll body receiving device and roll paper conveying device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roll body receiving apparatus that determines whether or not roll bodies having different diameters can be received, and a roll paper transport apparatus including the roll body receiving apparatus.
[0002]
[Prior art]
In order to perform continuous printing, a rotary press or the like is provided with a continuous paper feeding device that holds a plurality of roll papers and unwinds and supplies the roll paper while performing automatic paper splicing.
[0003]
When the roll paper being fed in the continuous paper feeder approaches the end and becomes smaller in diameter, the splicing is performed so that paper is fed from another large-diameter roll paper. The roll paper having a reduced diameter is removed from the continuous paper feeder, and a new large-diameter roll paper is supplied to the continuous paper feeder from which the small-diameter roll paper has been removed. Is provided.
[0004]
In order to smoothly supply roll paper to the rotary press, a centering device for a roll paper transport device that performs positioning of the roll paper has been conventionally proposed (see, for example, Patent Document 1).
[0005]
[Patent Document 1]
JP-A-11-20996 [0006]
On the other hand, in a rotary press, for example, when the diameter of the roll paper decreases to 160 mm or less (when the paper tube diameter of the roll core is 150 mm), it is removed from the continuous paper feeder as the remaining paper and a new large-diameter roll paper is continuously added. It is attached to the paper feeder.
[0007]
Some continuous paper feeders of a rotary press do not have a means for detecting the diameter of a reduced-diameter roll paper (hereinafter referred to as a roll body). It is necessary to detect the roll body diameter to determine whether it can be used as roll paper or remaining paper. Only when the diameter is smaller than the predetermined diameter and the remaining paper is determined, the roll body is continuously fed by the roll paper transport device. A new large-diameter roll paper is received from the apparatus and supplied to the continuous paper feeder.
[0008]
As a method of measuring the diameter of the roll body having a small diameter as described above, it is conceivable to provide a detector using a photoelectric tube switch in the roll paper transport device to detect the diameter of the roll body.
[0009]
[Problems to be solved by the invention]
However, the method of measuring the diameter of the roll body using the photoelectric switch has a limitation on the mounting position where the photoelectric switch is attached to the roll paper transport device, and further, a determination error is likely to occur due to an error in the optical axis position. A detector with a small measurement error is expensive and has a problem that the cost of the apparatus increases. Therefore, it is often difficult to measure the diameter of the roll body on the roll paper conveying apparatus side.
[0010]
The present invention relates to a roll body receiving apparatus and roll paper transport that can be received only when the diameters of roll bodies having different diameters can be easily determined by mechanically determining whether the diameter is larger or smaller than a predetermined value. An object is to provide an apparatus.
[0011]
[Means for Solving the Problems]
The invention according to claim 1 is a roll body receiving apparatus configured to receive a roll body by entering a lower part of a roll body having a different diameter and raising and lowering the lifting platform, and after the approaching direction on the lifting platform. A rear arm having a front extension extending forward from the lower end of the rear vertical portion located on the side, and a corner portion in the vicinity of the upper and lower pedestals by a fulcrum pin rotatably attached to the elevator base; The rear arm is mounted on the front extension of the rear arm and has a rear extension extending rearward from the lower end of the front vertical section located on the front side in the approach direction. A front arm rotatably attached to the front of the front end, and a detector that detects that the rear extension of the front arm has been moved away from the elevator base and rotated upward. Roll body receipt characterized by It is those of location, to.
[0012]
According to a second aspect of the present invention, there is provided the roll body receiving apparatus according to the first aspect, further comprising a tension spring for allowing the rear extension of the front arm to approach the lifting platform. It is.
[0013]
According to a third aspect of the present invention, the roll paper is supported on the front side of the roll paper supply device that enters the lower side of the continuous paper feeding device and supplies the roll paper to the continuous paper feeding device. The present invention relates to a roll paper transport device comprising the roll body receiving device according to 1 or 2.
[0014]
According to the above means, it operates as follows.
[0015]
According to the first aspect of the present invention, a rear arm having a rear vertical part and a front extension on the lifting platform of the roll receiving device and capable of rotating rearwardly by a fulcrum pin, and a front side of the rear arm Since it has a front arm that is installed on the extension part and has a front vertical part and a rear extension part and can be rotated forward by the rotation pin, when the roll body receiving device enters the lower part of the roll body, When the front vertical portion of the front arm comes into contact with the roll body, the entire front arm and the rear arm rotate upward and rearward about the fulcrum pin. Further, when the roll body receiving device is lifted with respect to the roll body, when the rear vertical portion of the rear arm comes into contact with the roll body, the entire front arm and the rear arm rotate to the upper rear about the fulcrum pin. In addition, when the front vertical portion of the front arm comes into contact with the roll body, the front arm rotates to the upper front around the rotation pin. Since the rotation of the front arm and the rear arm is detected by the detector, it can be detected that the diameter of the roll body cannot be received by the roll body receiving device by the rotation of the front arm or the rear arm. . Therefore, it is possible to reliably determine whether or not a roll body having a different diameter can be received with a simple configuration.
[0016]
Furthermore, since the rotation of the rear extension of the front arm provided on the front extension of the rear arm is detected by the detector, when the rear arm rotates to the upper rear together with the front arm, Both operations when only the front arm is rotated forward in the upper part can be detected by a single detector, and thus the apparatus can be simplified.
[0017]
In the invention according to claim 2, since the rear arm and the front arm are normally held in a predetermined posture on the lifting platform by the tension spring, the rear arm and the front arm rotate unnecessarily and malfunction. This can prevent problems that may occur.
[0018]
According to a third aspect of the present invention, the front side of the roll paper supply device provided in the roll paper feeding device is provided so as to support the roll paper and enter the lower side of the continuous paper feeder and supply the roll paper to the continuous paper feeder. In addition, the roll body receiving device is provided, so that the roll paper can be transported and supplied safely and reliably.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Preferred embodiments of the invention will be described below with reference to the drawings.
[0020]
FIG. 1 is a side view showing an example of a roll paper conveying apparatus according to the present invention, and FIG. 2 is a view taken in the direction of arrows II-II in FIG. The roll paper transport device 1 includes a driving wheel 2 and a load support wheel 3 and travels while detecting a derivative (not shown) provided on the floor surface 4 and feeds paper to a rotary press (not shown). A conveying carriage 6 that can enter from the entry direction I is provided in the lower part of the continuous sheet feeding device 5. The continuous paper feeder 5 shown in FIG. 1 supports the roll paper 8 with roll claws 7a, 7b, 7c provided at equal intervals in three places, and rotates around the rotation center portion 9 to sequentially feed the rotary press. It comes to paper.
[0021]
A roll paper supply device 12 having a lifting platform 11 that can be moved up and down by a link device 10 provided at the front and rear is provided at the rear of the approach direction I on the transport carriage 6. As shown in FIG. 2, each of the link devices 10 intersects the first link 13 and the second link 14 and connects the intersecting portion with a connecting pin 15 so as to be rotatable. Is pivotally attached to the transport carriage 6 with a pivot pin 16, and the upper right end of the second link 14 is pivotally attached to the lifting platform 11 with a pivot pin 17. On the other hand, the upper left end of the first link 13 is supported by a guide rail 18 provided on the lifting platform 11 through a guide wheel 19 so as to be movable in the left-right direction in FIG. 2, and the lower left end of the second link 14 is a transport carriage. Six guide rails 20 are supported through guide wheels 21 so as to be movable in the left-right direction in FIG. An elevating cylinder 22 is provided between the first link 13 and the second link 14, and the elevating platform 11 is moved up and down by rotating the first link 13 and the second link 14 with each other. It is supposed to be. On the upper surface of the lifting platform 11, roll receiving blocks 23 are provided for receiving the outer surface of the roll paper 8 at two locations in the axial direction. Reference numeral 23 a denotes an enrollment sensor that detects whether or not the roll paper 8 is placed on the roll paper supply device 12.
[0022]
On the front side of the roll paper supply device 12 on the transport carriage 6 is a roll body that receives a roll body 8a (small diameter paper supply roll) that has been reduced in diameter by being fed by the continuous paper feeding device 5. A receiving device 24 is provided.
[0023]
For example, as shown in FIGS. 3 and 4, the roll body receiving device 24 includes an elevating stand 27 that is moved up and down by a pantograph 26 that is expanded and contracted by an elevating drive device 25.
[0024]
As shown in FIGS. 5 and 6, on the left and right side portions of the entry direction I on the lifting platform 27, a rear arm 28 arranged on the rear side of the entry direction I and a front arm arranged on the front side of the entry direction I are shown. 29.
[0025]
The rear arm 28 has a rear vertical portion 28a and a front extension 28b extending forward from the lower end of the rear vertical portion 28a, and includes a rear vertical portion 28a and a front extension 28b. The vicinity of the corner portion C is attached so as to be able to rotate to the upper rear A with respect to the lifting platform 27 by a fulcrum pin 30.
[0026]
The front arm 29 has a front vertical portion 29a and a rear extension 29b extending rearward from the lower end of the front vertical portion 29a. The rear extension 29b is a front extension of the rear arm 28. It is mounted on the notch 31 formed in 28b. The vicinity of the corner portion C between the front vertical portion 29a and the rear extension portion 29b is attached to the tip of the front extension portion 28b of the rear arm 28 so as to be able to turn to the upper front B by the turning pin 32. .
[0027]
A fixing member 33 is attached to a side surface of the rear extension 29 b in the front arm 29 of FIG. 5, and the rear extension 29 b is placed on the lifting platform 27 between the fixing member 33 and the lifting platform 27. A tension spring 34 that holds the attracted state is provided. The rear arm 28 and the front arm 29 attracted and held by the tension spring 34 always form an upward U-shaped roll body receiving space 35 as shown in FIG.
[0028]
According to the configuration described above, the rear arm 28 can rotate only in the upper rear A about the fulcrum pin 30 against the tension spring 34, and on the front extension 28 b of the rear arm 28. The installed front arm 29 can independently rotate only to the upper front B around the rotation pin 32 with respect to the rear arm 28 against the tension spring 34.
[0029]
Further, when the rear extension 29b of the front arm 29 is rotated upward so as to be separated from the elevator 27, the lift 27 detects the rotation of the rear extension 29b. A detector 36 is installed. In this detector 36, as shown in FIG. 5, the lever 38 of the limit switch 37 installed on the lifting platform 27 is always pushed down by the lower surface of the fixing member 33 attached to the side surface of the rear extension 29b. When the side extension 29b is turned upward, the lever 38 is turned upward to immediately detect the turn of the rear extension 29b. In the above description, the case where the detector 36 is the limit switch 37 is illustrated, but a detector using light such as a phototube or magnetism may be used.
[0030]
The operation of the above embodiment will be described below.
[0031]
FIG. 1 shows a state in which a roll body 8a having a small diameter by paper feeding is supported on one roll claw 7a of the continuous paper feeding device 5, and the roll claw 7a is at the lowest position. In the state, the operation of receiving the small-diameter roll body 8a by the roll body receiving device 24 of the roll paper transport device 1, and the large-diameter supported on the roll paper supply device 12 by the roll claw 7a from which the roll body 8a has been removed. The operation of attaching the roll paper 8 is performed as follows.
[0032]
First, before the roll paper transport device 1 enters the lower part of the continuous paper feeding device 5, the lifting drive device 25 of the roll body receiving device 24 is operated to raise the lifting platform 27 by the pantograph 26, and the rear arm 28. As shown in FIG. 5, the upper end of the front arm 29 is adjusted so that it can move below the roll body 8a having the maximum allowable diameter L1. This height is preset and can be adjusted automatically.
[0033]
Next, the roll paper transport device 1 is advanced in the entering direction I, and stopped at a position where the center of the roll body receiving device 24 coincides directly below the center of the roll body 8a. Subsequently, the lifting drive unit 25 is actuated again to raise the lifting platform 27, and the roll body receiving space 35 formed by the rear arm 28 and the front arm 29 is fitted into the roll body 8a, and the roll body as shown in FIG. 8a to receive. At this time, as shown in FIG. 5, if the diameter of the roll body 8 a is equal to or less than the maximum receivable diameter L 2, the roll body receiving apparatus 24 can support the roll body 8 a by the roll body receiving space 35. An enrollment sensor 39 (FIG. 4) is provided at the bottom of the roll body receiving space 35 formed by the rear arm 28 and the front arm 29, and it is detected by the enrollment sensor 39 that the roll body 8a has been received. When the grip of the roll body 8a by the roll claw 7a is released by the detection signal, the load of the roll body 8a is received by the roll body receiving device 24. The roll body receiving device 24 that has received the roll body 8a operates the lifting drive device 25 to lower the lifting platform 27.
[0034]
Next, the roll paper transport device 1 is again advanced in the entry direction I, and stopped at a position where the center of the roll paper supply device 12 coincides directly below the center of the roll claw 7a. Subsequently, the elevating cylinder 22 is actuated to raise the elevating base 11 by the link device 10, and the axis of the roll paper 8 on the roll receiving block 23 is made to coincide with the center of the roll claw 7a. After the roll claw 7a is fitted to the paper tube 8 to support the roll paper 8, the lifting platform 11 is lowered. As a result, the supply of the new roll paper 8 is completed, so the roll paper transport device 1 moves back to a predetermined location in the direction opposite to the entry direction I, and then removes the roll body 8a on the roll body receiving device 24. A new roll paper 8 is placed on the roll paper supply device 12.
[0035]
As described above, when the diameter of the roll body 8a supported by the roll claw 7a is equal to or smaller than the maximum allowable diameter L1 and equal to or smaller than the maximum receivable diameter L2, the roll body receiving device 24 stably rolls. The operation of receiving the body 8a can be performed.
[0036]
On the other hand, there is a possibility that the roll body 8a has a diameter larger than the maximum allowable diameter L1 or larger than the maximum receivable diameter L2 depending on circumstances such as the stoppage of the rotary press.
[0037]
When the diameter of the roll body 8a is larger than the maximum allowable diameter L1, as described above, the upper ends of the rear arm 28 and the front arm 29 of the roll body receiving device 24 are below the roll body 8a having the maximum allowable diameter L1. When the roll arm 8a is adjusted to a height that can be moved, the upper end of the front arm 29 hits the lower outer periphery of the roll body 8a. Therefore, the front arm 29 and the rear arm 28 are The fulcrum pin 30 is pivoted to the upper rear A together. At this time, since the front arm 29 attached on the front extension 28b of the rear arm 28 also rotates to the upper rear A together, the upward rotation of the rear extension 29b of the front arm 29 is detected. Detected by the device 36.
[0038]
Therefore, since the detector 36 detects that the diameter of the roll body 8a is larger than the maximum allowable diameter L1, the roll body receiving apparatus 24 cannot receive the roll body 8a. Accordingly, the entrance of the roll paper transport device 1 is stopped, and the roll paper transport device 1 is retracted from the lower portion of the roll body 8a.
[0039]
Even when the upper end of the front arm 29 of the roll body receiving device 24 can enter the lower side of the roll body 8 a, the diameter of the roll body 8 a is the roll body receiving space formed by the rear arm 28 and the front arm 29. In some cases, it may be larger than the maximum receivable diameter L2 that can be received at 35.
[0040]
In this case, when the lifting frame 27 is raised with the center of the roll body receiving device 24 aligned with the center of the roll body 8a, the upper ends of the rear arm 28 and the front arm 29 are the lower outer periphery of the roll body 8a. For this reason, the rear arm 28 pivots to the upper rear A about the fulcrum pin 30, and the front arm 29 pivots to the upper front about the pivot pin 32. At this time, the detector 36 detects the upward rotation of the rear extension 29b of the front arm 29.
[0041]
Since the detector 36 detects that the diameter of the roll body 8a is larger than the maximum receivable diameter L2, it can be determined that the roll body receiving apparatus 24 cannot receive the roll body 8a. Therefore, the raising of the lifting platform 27 of the roll body receiving device 24 is stopped, the lifting platform 27 is lowered, and the roll paper transport device 1 is retracted from the lower portion of the roll body 8a.
[0042]
As described above, when the diameter of the roll body 8a is larger than the maximum allowable diameter L1, or smaller than the maximum allowable diameter L1 but larger than the maximum allowable diameter L2, the roll body receiving device 24 causes the roll body 8a to be moved. I can't receive it. Therefore, in such a case, after the roll paper transport device 1 is moved backward and the roll paper 8 placed on the roll paper supply device 12 is temporarily lowered to the storage unit or the like, the roll paper of the roll paper transport device 1 is then removed. After the feeding device 12 is moved so as to be positioned directly below the roll body 8a, the lifting platform 11 of the roll paper feeding device 12 is lifted and received by the roll receiving block 23, and then the lifting platform 11 is moved. Then, the roll paper transport device 1 is moved backward and carried out.
[0043]
Subsequently, the large-diameter roll paper 8 is again placed on the roll paper supply device 12, and the roll paper conveyance device 1 is run so that the roll paper supply device 12 is directly below the roll claw 7a from which the roll body 8a is removed. Then, the roll paper 8 on the roll paper supply device 12 is supported by the roll claw 7a in the same manner as described above.
[0044]
As described above, the rear arm 28 and the front arm 29 for receiving the roll body 8a provided on the lifting platform 27 of the roll body receiving device 24 are rotatable about the fulcrum pin 30, and the front arm 29 is rotatable about the rotation pin 32 with respect to the front extension 28b of the rear arm 28, and the rotation is detected when the rear extension 29b of the front arm 29 rotates upward. Since it is possible to detect that the diameter of the roll body 8a cannot be received by the roll body receiving device 24, it is possible to receive the roll body 8a having different diameters with a simple configuration. Can be determined.
[0045]
Further, since the detector 36 detects the rotation of the rear extension 29b of the front arm 29 extending along the front extension 28b of the rear arm 28, the rear arm 28 is rotated. Since both the operation when the front arm 29 moves and the front arm 29 rotates together and the operation when only the front arm 29 rotates can be detected by the single detector 36, the apparatus can be simplified. .
[0046]
Further, since the rear arm 28 and the front arm 29 are normally held in a predetermined posture on the lifting platform 27 by the tension spring 34, the rear arm 28 and the front arm 29 are unnecessarily rotated. There is no problem of malfunction.
[0047]
Supporting the roll paper 8 and entering below the continuous paper feeding device 5 and feeding the roll paper 8 to the continuous paper feeding device 5 in front of the entrance direction I of the roll paper feeding device 12 provided in the roll paper feeding device 1. Since the roll body receiving device 24 is provided, the roll paper 8 can be transported and supplied safely and reliably.
[0048]
The present invention is not limited only to the above-described embodiments. The roll body receiving apparatus can be applied to receiving various roll bodies having different diameters other than roll paper, and other within the scope not departing from the gist of the present invention. It goes without saying that various changes can be made in.
[0049]
【The invention's effect】
According to the first aspect of the present invention, the rear arm that has the rear vertical portion and the front extension portion and can be rotated rearward by the fulcrum pin, and the front vertical portion installed on the front extension portion of the rear arm. And a front arm that has a rear extension portion and is pivotable forward by a pivot pin, and when the roll body receiving device enters the lower portion of the roll body, the front vertical portion of the front arm becomes the roll body. When it comes into contact, the entire front arm and rear arm pivot to the upper rear centering on the fulcrum pin, and when the roll body receiving device is raised with respect to the roll body, the rear vertical part of the rear arm is the roll body. The front arm and the entire rear arm pivot to the upper rear centering on the fulcrum pin.When the front vertical part of the front arm contacts the roll body, the front arm pivots to the upper front centering on the pivot pin. The front arm and the rear arm Therefore, it is possible to detect that the diameter of the roll body is a diameter that cannot be received by the roll body receiving device by the rotation of the front arm or the rear arm. Thus, it is possible to reliably determine whether or not the roll bodies having different diameters can be received.
[0050]
Furthermore, since the rotation of the rear extension of the front arm provided on the front extension of the rear arm is detected by the detector, when the rear arm rotates to the upper rear together with the front arm, Both operations when only the front arm is rotated forward in the upper part can be detected by a single detector, and the apparatus can be simplified.
[0051]
In the invention according to claim 2, since the rear arm and the front arm are normally held in a predetermined posture on the lifting platform by the tension spring, the rear arm and the front arm rotate unnecessarily and malfunction. This has the effect of preventing problems that occur.
[0052]
According to a third aspect of the present invention, the front side of the roll paper supply device provided in the roll paper feeding device is provided so as to support the roll paper and enter the lower side of the continuous paper feeder and supply the roll paper to the continuous paper feeder. In addition, since the roll body receiving device is provided, the roll paper can be transported and supplied safely and reliably.
[Brief description of the drawings]
FIG. 1 is an overall side view showing an example of an embodiment of the present invention.
FIG. 2 is a view taken in the direction of arrows II-II in FIG.
FIG. 3 is a side view of the roll body receiving apparatus according to the present invention.
4 is a view taken in the direction of arrows IV-IV in FIG. 3;
5 is a side view showing details of the roll body receiving device of FIG. 3; FIG.
6 is a plan view of the configuration of FIG. 5 viewed from the VI-VI direction. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roll paper conveyance apparatus 5 Continuous paper feeding apparatus 7a, 7b, 7c Roll claw 8 Roll paper 8a Roll body 12 Roll paper supply apparatus 24 Roll body receiving apparatus 25 Elevating drive apparatus 27 Elevating stand 28 Rear arm 28a Rear vertical part 28b Front extension 29 Front arm 29a Front vertical part 29b Rear extension 30 Support pin 32 Rotation pin 34 Pull spring 36 Detector I Entering direction C Corner part A Upper rear B Upper front

Claims (3)

A roll body receiving device configured to receive a roll body by entering a lower part of a roll body having a different diameter and raising and lowering the lifting platform, and a rear vertical portion located on the rear side in the approaching direction on the lifting platform A rear arm having a front extension extending forward from the lower end of the arm and having a corner in the vicinity of the upper and lower pedestals mounted on a lift frame by a fulcrum pin, and a front extension of the rear arm It has a rear extension that extends rearward from the lower end of the front vertical part that is placed on the front side in the approach direction, and the corner portion rotates around the front end of the front extension by the pivot pin. A roll body receiving apparatus comprising: a front arm movably attached; and a detector that detects that a rear extension of the front arm is turned upwardly away from the lifting platform. . The roll body receiving apparatus according to claim 1, further comprising a tension spring for keeping the rear extension of the front arm close to the lifting platform. The roll body receiving device according to claim 1 or 2, wherein the roll body receiving device according to claim 1 or 2 is provided on a front side in an entering direction of a roll paper supply device that supports the roll paper and enters the continuous paper feeding device below and feeds the roll paper to the continuous paper feeding device. A roll paper conveying apparatus comprising the apparatus.

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