JP5380188B2 - Continuous paper cutting device - Google Patents

Description

  The present invention relates to a continuous paper cutting device that cuts continuous paper conveyed by a pin feed method into a single-sheet having a predetermined length by a cutting device.

  The feed hole of the pin tractor device is engaged with the feed holes drilled on both sides in the width direction and transported. The feed hole portion is cut off with a slitter on the downstream side in the transport direction, and further cut into the cutting device on the downstream side. The continuous paper cutting device, which cuts the paper in the direction perpendicular to the conveying direction thereof to obtain a single sheet as the final product form from the continuous paper, is the last of the cutter device and the collating machine as a dedicated machine. It is used for the processing part etc. (for example, refer patent document 1).

JP 2001-113495 A

  In this type of continuous paper cutting device, the continuous paper is conveyed to the cutting device by the pin tractor device as described above, and the cutting device operates in synchronization with the conveyance speed of the pin tractor device. Thus, the continuous sheet is cut into a predetermined length. The relationship between the feed pin of the pin tractor device and the feed hole of the continuous paper at this time is as shown in FIG. 1A, and the feed pin a of the pin tractor device is connected to the feed hole c of the continuous paper b. The continuous sheet is conveyed by the feed pin a in contact with the downstream edge.

  The dimensions of the feed pin a of the pin tractor device and the feed hole c of the continuous paper are 3.5 mm in diameter of the feed pin a and 4.0 mm in diameter of the feed hole c, and are based on the feed pin a of the pin tractor device. In view of the standard pin diameter and hole diameter, there is a possibility that the feed hole c may move ± 0.25 mm in the transport direction with respect to the feed pin a, and is shown in FIG. Thus, the feed hole c is transported in a state shifted to the upstream side by 0.25 mm with respect to the feed pin a.

  By the way, in this type of device, there is another pin tractor device on the upstream side of the pin tractor device of this device, and continuous paper is fed by this other pin tractor device. The continuous paper conveyance speed by other pin tractor devices may fluctuate.

  In addition, the continuous paper on the downstream side of the pin tractor device of the cutting device is subjected to a conveyance force related to the slitter and the cutting device, and the conveyance speed on the downstream side fluctuates due to the fluctuation of the conveyance force. There is.

  In this case, as described above, there is a difference in the hole diameters of the feed pin a of the pin tractor device and the feed hole c of the continuous paper b, and fluctuations in the transport state of the continuous paper on the upstream side and the downstream side of the pin tractor device. As a result, the continuous paper may deviate by ± 0.25 mm in the conveyance direction in the pin tractor device with respect to the operation timing of the pin tractor device. Therefore, the cutting position by the cutting device that operates in synchronization with the operation timing of the pin tractor device may be shifted by ± 0.25 mm in the conveyance direction due to the fluctuation of the continuous paper, and the length of the single-leaf sheet is shortened. When cut by 0.25 mm, it may be cut by 0.25 mm in the longer direction. When these two are compared, a maximum difference of 1 mm (± 0.5 mm) appears. there is a possibility. And as a result of taking a sample with an actual collator, it has been confirmed that the cutting accuracy is almost the same.

  This is particularly noticeable when a pin tractor is provided only on the continuous paper feed side to the cutting device.

  Further, the continuous paper b is continuously fed in a wave form to the feed pin a of the pin tractor device as shown in FIG. 2A, and the continuous paper b is sent in a straight line as shown in FIG. 2B. Even if the feed amount of the paper b slightly changes, the cutting accuracy is affected.

  The present invention has been made in view of the above, and can improve the product quality by improving the cutting accuracy in a continuous paper cutting device provided with a pin tractor device on the upstream side in the conveying direction of the cutting device, and can be produced. It is an object of the present invention to provide a continuous paper cutting device that can increase the types of products and improve the productivity.

In order to achieve the above object, a continuous paper cutting device according to the present invention is a continuous paper cutting device that cuts a continuous paper conveyed by a pin feed method into single-sheets of a predetermined length by a cutting device.
The conveyance direction upstream side of the cutting device, a pin of closely base not to, and synchronously made so as to drive two series arrangement of two pins tractor by the motor two pins tractor driven in the conveying direction in the conveying direction A tractor device is arranged, and this pin tractor device conveys continuous paper toward the cutting device,
The drive system and motor of one pin tractor can be connected / disconnected using a clutch, and one pin tractor can be manually rotated while the motor is stopped ,
After stopping the motor, and to Danto a drive system and motor of one tractor-feed described above, rotates in the direction acting tension to the continuous paper pin tractor the one to the other tractor-feed manually the upstream The feed pin of the side pin tractor contacts the upstream side of the continuous paper feed hole, and the feed pin of the downstream side pin tractor contacts the downstream side of the continuous paper feed hole so that tension is applied to the continuous paper. The drive system of one pin tractor and the motor are connected in the state of tension, and the motor is driven so that continuous paper is conveyed toward the cutting device by two pin tractors .

  According to the present invention, a pin tractor device having a dual structure is arranged on the upstream side in the conveying direction of the cutting device, and continuous paper is applied in a state where tension is applied to the continuous paper between the two pin tractors constituting the pin tractor device. It can be conveyed to the cutting device, and the cutting accuracy in the continuous paper cutting device provided with the pin tractor device on the upstream side in the conveying direction of the cutting device can be improved, thereby improving the product quality. As a result, the types of commodities that can be produced increased and productivity could be improved.

  In addition, according to the present invention, it is a simple configuration in which pin tractors are simply installed in two stations, and an unprecedented quality improvement can be obtained at a low cost without using a large-scale device or complicated technology. .

  Further, each of the two pin tractors having a standard configuration can be used, and there is little increase in new parts, and adjustment and maintenance can be easily performed as in the conventional case.

  Further, when cutting a plurality of continuous sheets after collating, it becomes difficult to move the mutual positional relationship due to friction between sheets after the plurality of continuous sheets overlap. By providing the pin tractor device for each continuous sheet on the upstream side, the plurality of continuous sheets can be cut with high accuracy after collation.

(A), (b) is explanatory drawing which shows the relationship between the feed pin of a pin tractor, and the feed hole of a continuous paper. (A), (b) is explanatory drawing which shows the continuous paper feed state by the feed pin of a pin tractor. It is a front view which shows schematic structure of this invention apparatus. It is a top view which shows schematic structure of the pin tractor part of this invention apparatus. It is a front view which shows roughly the Example which collates and cut | disconnects several continuous paper.

  An embodiment of the present invention will be described with reference to FIG.

  3 and 4, reference numeral 1 denotes a continuous paper cutting device that cuts the continuous paper 2 into single-sheets 3 having a predetermined length. Feed holes 4 are provided on both sides of the continuous paper 2 in the width direction. Reference numeral 5 denotes a pin tractor device that conveys the continuous paper 2 intermittently or continuously. Reference numeral 6 denotes a slitter that is positioned downstream of the pin tractor device 5 and cuts out the feed holes on both sides of the continuous paper 2. Is a cutting device provided on the downstream side of the slitter 6, and is cut into the single-leaf sheet 3 by a cutter 7 a that operates in synchronization with the conveying speed of the pin tractor device 5. A pair of upper and lower feed rollers 8 that operate synchronously with the pin tractor device 5 is provided on the downstream side of the cutting device 7.

  The pin tractor device 5 is a double type in which two pin tractors 5a and 5b are arranged in the conveying direction. Each pin tractor 5a and 5b has a plurality of feed pins on the belt on both sides in the width direction. 9 has a normal structure.

  The drive shafts 10a and 10b of the pin tractors 5a and 5b are interlocked and connected by a timing belt 12 wound around driven pulleys 11a and 11b fixed to respective end portions. The timing belt 12 is wound around a driving pulley 11c driven by a driving source 13, and the pin tractors 5a and 5b are rotated synchronously by the driving source 13.

  A clutch 14 is provided on one of the pin tractors 5a, 5b, for example, on the inside of the driven pulley 11b of the drive shaft 10b of the downstream pin tractor 5b. The power of the drive source 13 with respect to 11b is “disconnected” and “continued”. A handle 15 for manually rotating the drive shaft 10b is provided at the other end of the drive shaft 10b provided with the clutch 14.

  The drive source 13 for driving the pin tractor device 5 may be a single motor driven in synchronism with the machine drive source for driving the slitter 6, the cutting device 7, etc., and the machine drive source. It is also possible to obtain a driving force by connecting to. Further, the drive shafts 10a and 10b of the pin tractors 5a and 5b may be driven by a single motor that is synchronized with the drive source of the main unit. You can choose freely.

  The cutting operation of the continuous paper 2 in the continuous paper cutting device 1 having the above configuration will be described below.

  In a state where the continuous paper 2 is passed through the continuous paper cutting device 1, the clutch 14 provided on the drive shaft 10b of the pin tractor 5b on the downstream side of the pin tractor device 5 is turned off, and the drive shaft 10b is connected to the handle 15. Thus, the feed pin 9 rotates in the direction of moving in the paper feed direction. In this state, as shown in FIG. 4, the feed pin 9 of the downstream pin tractor 5 b comes into contact with the downstream side of the feed hole 4 of the continuous paper 1, and the continuous paper 1 is fed to the feed pin 9. Is urged downstream. At this time, since the upstream pin tractor 5 a is stopped, the feed pin 29 of the upstream pin tractor 5 a is brought into contact with the upstream side in the feed hole 4.

  Accordingly, the continuous paper 2 in the pin tractor device 5 is moved between the pin tractors 5a and 5b by rotating the drive shaft 10b and moving the feed pin 9 in the transport direction while the clutch 14 is in the "disengaged" state. Tension is applied.

  Next, when the clutch 14 is “continuous” and the drive shaft 10 b of the downstream pin tractor 5 b is connected to the drive source 14 and the continuous paper cutting device 2 is driven in this state, the continuous paper 2 in the pin tractor device 5 is driven. Is always conveyed in a state where tension is applied between both pin tractors 5a and 5b, that is, in a state where there is no play between the feed pin 9 and the feed hole 4 of both pin tractors 5a and 5b.

  In this way, the continuous paper 2 conveyed by the pin tractor device 5 is cut at the feed hole portions on both sides by a slitter 6 that operates in synchronism with the pin tractor device 5, and then cut into a single sheet 3 by a cutting device 7. Disconnected. At this time, the continuous paper 2 before being cut by the cutting device 7 is pulled by the feed roller 8 located on the downstream side of the cutting device 7. At this time, the feed roller 8 is rotated at a peripheral speed slightly faster than the conveying speed of the pin tractor device 5.

  In the above operation, even if the continuous paper 2 on the upstream side of the pin tractor device 5 is fluctuated or wavy, the pin tractor device 5 is stretched in a straight line. The continuous paper 2 is transported from the pin tractor device 5 to the cutting device 7 at a constant speed according to the transport speed of the pin tractor device 5. The cutting device 7 that operates in synchronism cuts to a certain length without causing an error due to play between the feed pin 9 and the feed hole 4. The cutting accuracy of the single-leaf sheet 3 at this time was improved to ± 0.2 mm or more, and the product quality could be improved.

  The feed roller 8 provided on the downstream side of the cutting device 7 has a conveying speed slightly higher than the conveying speed of the pin tractor device 5, and the continuous paper 2 before cutting downstream of the pin tractor device 5 is It is towed by this feed roller.

  In this embodiment, an example in which the feed roller 8 is disposed only on the downstream side of the cutting device 5 is shown. However, as shown by the two-dot oblique line in FIG. Another feed roller 8a that rotates synchronously with the feed roller 8 provided on the downstream side of the cutting roller 7 may be arranged, and the cutting operation in this case is the same as the case where the feed roller is provided only on the downstream side of the cutting device 7. is there. The same applies when the slitter 6 is not used.

  In the above-described embodiment, the example in which the clutch 14 is provided on the drive shaft 10b of the pin tractor 5b on the downstream side of the pin tractor device 5 has been described. However, as indicated by the chain line in FIG. 4, the pin tractor 5a on the upstream side. The drive shaft 10a may be provided with a clutch 14 '. In this case, in the clutch disengaged state, the drive shaft 10a is attached to a handle 15' attached to the upstream drive shaft 10a so that the feed pin 9 moves upstream. Rotate.

  The clutch 14 may be of a mechanical configuration in which screws are fastened and fixed, a mechanical connection type, or may be operated by electricity or magnetic force.

  FIG. 5 shows a case where a plurality of (two sheets) of continuous sheets 2 and 2 are cut into a sheet by the cutting device 7 while laminating, and a double pin tractor device 5 for each continuous sheet. , 5 are used.

  DESCRIPTION OF SYMBOLS 1 ... Continuous paper cutting device, 2 ... Continuous paper, 3 ... Single sheet, 4 ... Feed hole, 5 ... Pin tractor device, 5a, 5b ... Pin tractor, 6 ... Slitter, 7 ... Cutting device, 7a ... Cutter, 8, 8a ... feed roller, 9 ... feed pin, 10a, 10b ... drive shaft, 11a, 11b ... pulley, 12 ... timing belt, 13 ... drive source, 14, 14 '... clutch, 15, 15' ... handle.

Claims (1)

In a continuous paper cutting device that cuts continuous paper conveyed by a pin feed method into a single-leaf sheet of a predetermined length by a cutting device,
The conveyance direction upstream side of the cutting device, a pin of closely base not to, and synchronously made so as to drive two series arrangement of two pins tractor by the motor two pins tractor driven in the conveying direction in the conveying direction A tractor device is arranged, and this pin tractor device conveys continuous paper toward the cutting device,
The drive system and motor of one pin tractor can be connected / disconnected using a clutch, and one pin tractor can be manually rotated while the motor is stopped ,
After stopping the motor, and to Danto a drive system and motor of one tractor-feed described above, rotates in the direction acting tension to the continuous paper pin tractor the one to the other tractor-feed manually the upstream The feed pin of the side pin tractor contacts the upstream side of the continuous paper feed hole, and the feed pin of the downstream side pin tractor contacts the downstream side of the continuous paper feed hole so that tension is applied to the continuous paper. The continuous paper is characterized in that the drive system of one pin tractor and the motor are connected in the state of tension, and the motor is driven so that the continuous paper is conveyed to the cutting device by two pin tractors. Cutting device.

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