JPH078352U - Paper feed mechanism of continuous paper cutting device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a paper feed mechanism of a continuous paper cutting device for automatically cutting horizontal perforations for cutting continuous paper which is a continuous form having a feed hole and horizontal perforations. [Structure] An upper and lower roller that rotates by pressure contact, a paper retainer and a base for temporarily holding the continuous paper conveyed by the upper and lower rollers that rotate by pressure contact, and a tearing means for tearing the continuous paper described above. In a continuous paper cutting device provided with an upper roller and a lower roller that rotate by pressure so as to discharge a continuous sheet that has been torn apart by the tearing means, a sheet feeding roller that is an upper part of the upper and lower rollers that rotate by pressure. The contact surface that comes into contact with the continuous paper has a notch portion for removing the load due to overfeed. [Effect] It is possible to compensate for a decrease in the carrying capacity of the carrying roller, an unstable carrying amount due to continuous paper, the type of copy slip, and environmental conditions (humidity), and it is possible to accurately carry the continuous paper.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paper feed mechanism of a continuous paper cutting device for automatically cutting a horizontal perforation for cutting continuous paper which is a continuous form having a feed hole and a horizontal perforation.

[0002]

[Prior art]

 Conventionally, two methods are known as a method of automatically cutting continuous paper along a cutting perforation provided to separate one continuous paper from another. The first method is a method called the burst method, in which the paper feed roller and the paper ejection roller, which consist of a lower roller and a pressure roller, are arranged at two separate points, and the paper ejection roller is arranged. By making the peripheral speed of the paper feeding roller faster than the peripheral speed of the paper feeding roller, a tension is generated between the paper feeding roller and the paper discharging roller. This is a method of separating the perforated lines by pressing means. The second method is a cutter method that uses a blade, and a method that lowers the blade from above or cuts the continuous paper along the horizontal perforations provided on the continuous paper using a rotary blade or the like. To do. In this case, in order to tear the horizontal perforations provided on the continuous slip, it was necessary to accurately align the positions of the horizontal perforations and the cutting tool.

Further, in a method for cutting continuous paper using a blade, as a means for automatically conveying the horizontal perforated portion of the continuous paper to the cutting position, there is a feed hole for conveyance provided in the continuous paper. After engaging the pin tractor for conveying the continuous paper, the rotary motion controlled by the pulse motor provided in the cutting device is transmitted to the pin tractor described above, and the horizontal perforated portion of the continuous paper is transmitted. It is generally known to convey to a predetermined position for cutting.

[0004]

[Problems to be solved by the device]

 Although rubber-based materials such as urethane rubber and nitrile rubber are used as the material for the paper feed roller and the paper discharge roller for transporting continuous paper, paper dust and rubber materials generated when continuous paper is cut. Due to the deterioration of the feeding capacity of the paper feed roller and the paper ejection roller due to aging, the ratio of the pin tractor to the paper feed roller and the paper ejection roller was set to 1: 1. In this case, slippage of the paper on the paper feed roller, paper ejection roller and paper surface causes slack in the continuous paper, making it impossible to convey the continuous paper to the specified position, resulting in defective separation and paper jams. Was becoming. Further, in order to prevent the continuous paper from sagging and jamming, it is necessary to manufacture the diameter of the transport roller with high accuracy.

Further, the copy slip is chemically treated for copying, and since the front and back sides of the copy slip paper have different friction coefficients, a plurality of sheets are fed by the paper feed roller and the paper discharge roller. When a multi-part copy voucher with one voucher as a bundle is transported, it acts between the transport roller, continuous voucher paper, and continuous voucher paper (the top voucher and the next voucher of the copy voucher). Due to the different frictional forces, slack occurred during the transportation of the continuous slip paper, and it was very difficult to transfer the copy slip to the correct position.

[0006]

[Means for Solving the Problems]

 The present invention has been made in view of the conventional problems, and is a paper feed upper and lower roller for pressing and rotating continuous paper, and a paper for temporarily stopping the continuous paper conveyed by the paper feed upper and lower rollers. Tearing means for tearing the continuous paper stretched by the pressing roller and the paper feeding roller, the paper pressing roller and the base, and the continuous paper torn apart by the tearing means and discharged. In the continuous paper cutting device provided with the upper and lower rollers for paper discharge that rotate by pressure contact as described above, the contact surface of the upper paper feed roller that contacts the continuous paper among the paper feed rollers, The paper feeding mechanism of a continuous paper cutting device having a cutout portion is proposed.

[0007]

[Action]

 That is, in the present invention, the speed at which the continuous paper is conveyed by the paper feed roller is set slightly higher than that of the tractor, so that the slack caused by the slip generated at the paper feed roller can be absorbed. , Notches for adjusting excessive tension and the paper feed roller are provided to equalize the tension of continuous paper at the paper feed roller. In addition, even when the roller is designed, the dimensional tolerance range of the roller diameter can be widened.

[0008]

【Example】

 Hereinafter, details of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an embodiment of the present invention. Reference numeral 1 is a continuous sheet having a feed hole 2 and a horizontal perforation. Reference numeral 3 is a tractor pin, which is a protrusion provided for feeding the continuous paper 1 by engaging with a circular feed hole 2 provided in parallel with the feeding direction of the continuous paper 1. Reference numeral 4 denotes a paper pressing cover which engages the circular feed hole 2 provided in the continuous paper 1 with the tractor pin 3 so as to disengage from the circular feed hole 2 from the tractor pin 3 while the continuous paper 1 is being conveyed. In order to prevent it, it is put down on the continuous form 1 before use.

Reference numeral 5 is a pin tractor to which a driving force is applied from a pulse motor (not shown), and the driving force of the pin tractor 5 drives the tractor pin 3. An edge cutting unit 6 is provided for cutting the edge of the continuous paper 1 supplied from the pin tractor 5 along the vertical perforations 8. The circular blade 6A in the edge cutting unit 6 is slidably supported in the longitudinal direction of the shaft 9, and a fixing means (not shown) for fixing the circular blade 6A and the shaft 9 is a joint portion between the circular blade 6A and the shaft 9. By adjusting this fixing means, it can be locked at any position of the shaft 9. Further, the vertical perforation 8 of the edge portion 7 can be cut in accordance with the horizontal width of the circular feed hole 2 portion of the continuous paper 1. Further, the circular blade 6A of the edge cutting unit 6 can be locked at any position on the shaft 9, so that the edge cutting unit 6 is locked to the outside of the edge 7 of the continuous paper 1. It is also possible that the edge 7 is not cut.

Reference numeral 10 is an upper roller for paper feeding, and 11 is a lower roller for paper feeding. The continuous paper 1 whose ears have been cut by the edge cutting unit 6 is sandwiched and drawn between the upper roller 10 for feeding and the lower roller 11 for feeding. The upper roller 10 for feeding and the lower roller 11 for feeding feed the continuous sheet 1 to the lower position of the cutting blade 13 by the horizontal perforation 12 provided on the continuous sheet 1. When the continuous paper 1 is conveyed to the lowered position of the cutting blade 13, the paper presser 14 is lowered. Reference numeral 15 is a base for receiving the lowered paper retainer 14. The base 15 is provided so as to face the paper retainer 14, and the paper retainer 14 holds the continuous paper 1 in order to stop the continuous paper 1.

After the paper presser 14 is lowered, the cutting blade 13 is lowered and the horizontal perforation 12 of the continuous paper 1 is pressed downward to cut the continuous paper 1, and then the cutting blade 13 and the paper presser 14 are pressed. And the cut continuous paper 1 is stored in the stacker 18 by the upper roller 16 for discharging and the lower roller 17 for discharging. At the same time as the continuous paper 1 is stored in the stacker 18, the pin tractor 5, the round blade 6A of the edge cutting unit 6, and the upper and lower rollers 10 and 11 for paper feeding rotate, so that a series of continuous papers 1 is transferred. Carrying and cutting operations are repeated. The upper roller and the lower roller for feeding are fixed to the shaft 19 and the shaft 20.

Next, the upper roller 10 for sheet feeding will be described. As described above, the type of continuous paper, especially the copy slip, is chemically processed in order to copy the contents described in the first slip into several slips. Due to the difference in the friction coefficient between the slips below and the slips below it, when the transport ratio of the pin tractor 5 and the upper and lower rollers 10 and 11 for feeding is 1: 1, The slack was generated in the continuous paper 1 between the pin tractor 5, the upper roller 10 and the lower roller 11 for feeding. In order to absorb this, the feeding speed of the upper roller 10 and the lower roller 11 for feeding is rotated at a peripheral speed which is a little faster than the feeding speed of the pin tractor 5, and the continuous slip 1 is over-fed. The state, that is, the stretched state.

Due to this overfeed, the continuous paper 1 is pulled by the upper roller 10 and the lower roller 11 for feeding, so that the continuous paper 1 is engaged at the portion where the circular feed hole 2 and the tractor pin 3 are engaged. If the load is excessively applied to the upper roller 10, the circular feed hole 2 provided on the continuous paper 1 may come off or break from the tractor pin 3. Therefore, in order to prevent this, the notch 21 is formed in the upper roller 10. The load applied to the continuous voucher 1 can be temporarily removed by providing a portion that does not come into pressure contact with the lower roller 11 by providing. The notch portion is set with a slight inclination toward the center of the upper roller 10 for transportation as shown in FIG. If notches are provided in the axial direction, but there may be one or more notches, set the notches of the plurality of rollers at even intervals at the upper roller. It is desirable to provide them with a slight shift.

[0014]

[Effect of device]

 Since the present invention is configured as described above, it is possible to make up for a variety of types of slips by compensating for the deterioration of paper feed roller capacity, slip type, and lack of conveyance capacity due to the difference in friction coefficient between copy slips. be able to. In addition, it is possible to accurately compensate continuous paper by compensating for the deterioration of the carrying capacity of the carrying rollers, the unstable carrying amount due to the type of continuous paper, copy slips, and environmental conditions (humidity). Is.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part for explaining an embodiment of the present invention.

FIG. 2 is a sectional view illustrating an embodiment of the present invention.

[Explanation of symbols]

 1 Continuous Paper 2 Circular Feed Hole 3 Tractor Pin 4 Paper Holding Cover 5 Tractor Pin 6 Edge Cutting Unit 6A Circular Blade 7 Edge 8 Vertical Sewing Machine 9 Axis 10 Upper Roller 11 Lower Feeding Paper Feeding Roller 12 Horizontal sewing machine 13 Cutting blade 14 Paper retainer 15 Base 16 Upper roller for discharging 17 Lower roller for discharging 18 Stacker 19 Shaft 20 Shaft 21 Notch

Claims (1)

[Scope of utility model registration request] 1. A paper feeding upper and lower roll for rotating continuous paper under pressure.
La, a paper retainer and a base for temporarily stopping the continuous paper conveyed by the paper feed upper and lower rollers, and the paper feed roll.
A tearing means for tearing the continuous paper, which is stretched by a roller, a paper retainer, and a base, and an upper and lower roller for discharging, which rotates by pressure so as to discharge the continuous paper which is torn by the tearing means and is separated. In the continuous paper cutting device provided, the continuous paper cutting device has a notch portion on a contact surface of an upper paper feeding roller that comes into contact with the continuous paper. Paper feed mechanism.