JP5785817B2 - Paper feed method using paper feed roller - Google Patents

Description

  The present invention relates to a sheet feeding roller used in a sheet feeding apparatus, particularly a sheet feeding apparatus used in a newspaper advertisement collating apparatus, and a sheet feeding method using the sheet feeding roller.

  In order to prevent paper sheets from being supplied multiple times, various multifeed prevention devices are used in the apparatus for supplying paper sheets. In particular, in a newspaper advertisement collation apparatus, in order to handle different types of paper, a multifeed prevention device suitable for each paper is required (for example, see Patent Documents 1 to 3).

JP 2008-74615 A JP 2006-264975 A JP 7-267401 A

  However, in the above-described conventional paper feeding device, when the leaflets to be fed are made of a material that is very slippery, if the pressure contact force between the rubber roller and the separating plate (pad) is too low, sufficient double feed prevention performance can be obtained. There was a problem that it could not be obtained. On the other hand, if the pressure contact force is too high, there is a problem that the flyer is wrinkled or torn due to excessive friction between the paper feed roller and the scooping plate (pad). In order to solve these problems, it is necessary to adjust the pressure contact force between the rubber roller and the scooping plate (pad), the rotation speed of the roller, etc., but this is a very difficult task, and the type of flyers There was a problem that if the value changed, another setting had to be made.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a paper feed roller that does not cause troubles such as double feeding, wrinkles, and tearing by a simple operation even when a flyer made of a material that is very slippery is handled in the paper feed device.

According to the present invention, a paper feed roller used for feeding paper sheets stacked one by one in a newspaper advertisement collating apparatus includes a single wheel connected to a roller drive shaft, and an outer peripheral surface of the wheel. A plurality of rubber rollers connected in the axial direction of the roller drive shaft, and a boundary rib is formed in the middle portion of the outer peripheral surface of the wheel along the circumferential direction of the wheel; A rubber roller is disposed on each wheel outer peripheral surface portion on both sides of the boundary rib, the boundary rib is interposed between the plurality of rubber rollers and abuts against a side edge of the rubber roller. In the method, when feeding a first paper sheet among a plurality of paper sheets of different materials from each other, all the rubber rollers of a plurality of rubber rollers attached to a single wheel are attached. Paper raw Feed paper with, upon the first sheet feeding different second sheet is at least one of the plurality of rubber rollers mounted to the wheel of the singular is removed A paper feeding method is characterized in that paper feeding is performed using a paper feeding roller.

Thus, according to the present invention, a plurality of rubber rollers are attached, and as a result, the width of the rubber rollers can be increased as compared with the conventional one. As a result, even if the pressing force of the paper feeding roller is reduced, the pressure during paper feeding given to the paper sheet as a whole is sufficient for paper feeding. Further, since the pressing force of the paper feed roller can be reduced, sufficient paper feed performance and double feed prevention performance can be obtained even for paper sheets that are weak in slip force or easily broken . Further, with this configuration, it is possible to prevent the plurality of rubber rollers from moving in the axial direction by the boundary ribs, and prevent a problem that the rubber rollers are displaced or detached from the wheel. Further, with such a configuration, it is possible to feed a plurality of paper sheets of different materials from each other quickly and easily without causing double feeding, wrinkling, tearing, and the like with a simple operation. Also, for example, by making the width of any one of the rubber rollers the same as that of a conventional general-purpose rubber roller, the other rubber rollers can be removed and fed under the same conditions as before. Therefore, there is an advantage that new know-how is not imposed on workers who are used to using conventional rollers. Therefore, in this paper feeding method, an operator can feed paper with the same feeling as before.

  Here, in order to obtain sufficient sheet feeding performance and double feed prevention performance, a sheet feeding roller including a single rubber roller that is widened to a desired width can be proposed. However, such a configuration including a single wide rubber roller makes the work of replacing the rubber roller very troublesome. On the other hand, the paper feed roller of the present invention includes a plurality of rubber rollers, and therefore can be easily attached and detached.

  A mechanism for mounting the paper feeding roller on the roller driving shaft, the roller driving shaft including a groove, and a stopper member disposed on a side end surface of the wheel; Comprises a first sandwiching body and a second sandwiching body that are pivotally supported with each other, and a biasing means that biases the first sandwiching body and the second sandwiching body in the closing direction. (2) The sandwiching body is provided with a fitting portion, and the fitting portion is fitted in the groove provided in the roller driving shaft according to the urging force by the urging means, thereby being attached to the roller driving shaft. A feed roller mounting mechanism that restricts movement of the feed roller in the axial direction may be used.

  With such a configuration, the sheet feeding roller is restricted from moving in the axial direction of the roller driving body simply by using the urging force of the first sandwiching body and the second sandwiching body in the closing direction. As a result, the paper feed roller can be securely attached to the roller driving body with a very simple configuration. For this reason, the paper feed roller mounting mechanism drives the paper feed roller by a simple mechanism that only uses the biasing force of the stopper member in the closing direction between the first sandwiching body and the second sandwiching body. There is an advantage that it can be easily mounted at an appropriate position of the shaft.

The paper feeding method of the present invention can feed a plurality of paper sheets of different materials quickly and easily without causing double feeding, wrinkling, tearing and the like with a simple operation.

It is an exploded view of a paper feed roller, (a) is a side view, (b) is a plan view. It is a top view of a stopper member. It is a top view which shows the state which attached the paper feed roller to the roller drive shaft. It is a cross-sectional perspective view which shows the state which attached the paper feed roller to the roller drive shaft.

  Hereinafter, embodiments in which the paper feed roller of the present invention is embodied will be described in detail. In addition, this invention is not limited to the Example shown below, A design change is possible suitably.

  FIG. 1 shows an exploded view of the paper feed roller 1. The paper feed roller 1 includes a single wheel 2 and a plurality of rubber rollers 3A and 3B. In this embodiment, the width L1 along the axial direction of the rubber roller 3A is made the same as the width of a conventional general-purpose rubber roller, while the width L2 along the axial direction of the rubber roller 3B. Is 0.5 times the width L1 of the rubber roller 3A (L1 = 2 × L2).

  The wheel 2 is provided with a shaft hole 2a through which the roller drive shaft 10 is inserted. Furthermore, outer ribs 2b and 2b are provided along the circumferential direction of the wheel 2 on the outer peripheral surface 20 of the wheel 2 at both left and right ends thereof. Further, the outer peripheral surface 20 of the wheel 2 is provided with boundary ribs 2c along the same direction as the outer ribs 2b at an intermediate portion thereof. The wheel width of the wheel 2 is set to a width obtained by adding the widths L1 and L2 of the rubber rollers 3A and 3B to the total width of the outer ribs 2b and 2b and the boundary rib 2c. Further, a screw hole 2 e for attaching the stopper member 4 is provided on the side end surface 2 d of the wheel 2.

  When the rubber rollers 3A, 3B are attached to the wheel 2, the rubber rollers 3A, 3B having the same widths L1, L2 as the distances L1, L2 between the ribs 2b, 2b, 2c of the wheel 2 are respectively fitted. . In this way, the paper feed roller 1 in which a plurality of (two) rubber rollers 3A and 3B are continuously connected to one wheel 2 is formed.

  As described above, since the rubber roller portion of the paper feed roller 1 is divided into the rubber rollers 3A and 3B, it fits more easily than fitting a single rubber roller whose total width is equal to the sum of L1 and L2 to the wheel. It is possible to perform wearing work.

  FIG. 2 shows a plan view of the stopper member 4. The stopper member 4 includes a first sandwiching body 4a as a main body, a second sandwiching body 4b composed of a lever body, and an urging means 4c composed of a compression spring. The first sandwiching body 4a and the second sandwiching body 4b are axially supported by a shaft support 4d, and are further urged by the urging means 4c in the closing direction (arrow direction in FIG. 2). The second sandwiching body 4b is provided with a concave fitting portion 4e. Further, the stopper member 4 is screwed to the screw hole 2e of the wheel 2 through the screw hole 4f.

  The paper feed roller 1 configured in this manner is connected to the roller drive shaft 10 by a paper feed roller mounting mechanism 40 shown in FIGS. That is, first, the roller drive shaft 10 is inserted from the side of the shaft hole 2a of the wheel 2 where the stopper member 4 is not provided. When the second sandwiching body 4b of the stopper member 4 reaches the groove 10a provided in the circumferential direction on the roller drive shaft 10, the first sandwiching body 4a exerted by the urging means 4c Due to the urging force of the second sandwiching body 4b in the closing direction, the fitting portion 4e provided on the second sandwiching body 4b is fitted into the groove 10a. Thus, the wheel 2 is connected to the roller drive shaft 10 at an appropriate position. At this time, as shown in FIG. 4, the wheel 2 is driven by a roller through a one-way clutch (not shown) and a bearing member (not shown) disposed in a region X formed around the roller drive shaft 10. It is connected to the drive shaft 10 so as to be rotatable only in one direction. In addition, a well-known technique can be employ | adopted suitably for a one-way clutch and a bearing member.

  Further, with the rubber rollers 3A and 3B attached to the wheel 2, the outer ribs 2b and 2b abut against the side edges of the rubber rollers 3A and 3B, and the boundary rib 2c is adjacent to the rubber rollers 3A and 3B. The rubber rollers 3A and 3B are in contact with the side edges of the rubber rollers 3A and 3B. Therefore, the rubber rollers 3A and 3B are prevented from shifting in the axial direction by the outer rib 2b and the boundary rib 2c of the wheel 2.

  The paper feed roller 1 installed in this way has an axial width 1.5 times that of the prior art, so that the paper feed roller 1 can be operated at a lower pressure than before when paper is fed. Even if a flyer made of a material that is easily torn is fed, problems such as double feeding, wrinkling, and tearing do not occur.

Further, when a plurality of paper sheets of different materials are fed, the feeding is performed according to the following procedure. That is, when feeding the first paper sheet among the plurality of paper sheets, the paper feed is attached with all the rubber rollers 3A and 3B that are known in advance to be suitable for the paper sheet. Paper is fed using the roller 1. In addition, when feeding a second paper sheet different from the first paper sheet and the conditions suitable for the paper sheet are the same as those of the conventional product, the wheel 2 The rubber roller 3B may be removed from the motor and operated only with the rubber roller 3A. Thus, if paper can be fed in the same way as before, there is an advantage that a new know-how is not imposed on the worker who is accustomed to using conventional rollers. It can be carried out.
At this time, since the boundary rib 2 c is provided on the wheel 2, it is possible to prevent the rubber roller 3 </ b> A from being displaced from the appropriate position of the wheel 2 or coming off from the wheel 2. This is a particularly useful configuration in a paper feeder of a newspaper advertisement collating apparatus that handles a large number of different types of paper sheets.

  Further, after the fitting portion 4e is separated from the groove 10a of the roller drive shaft 10 against the urging force of the urging means 4c, the paper feed roller 1 is simply pulled out from the roller drive shaft 10. The paper feed roller 1 can be quickly removed. Conversely, when the paper feeding roller 1 is inserted into the groove 10a of the roller driving shaft 10 until the second sandwiching body 4b of the stopper member 4 reaches the second driving body 10, the second biasing force is applied by the biasing means 4c. A fitting portion 4e provided on the sandwiching body 4b is fitted into the groove 10a, whereby the attachment position of the paper feed roller 1 is determined. Therefore, the operator can easily and quickly remove the paper feed roller 1 from the roller drive shaft 10 and workability is improved. Further, such a configuration can easily confirm an appropriate mounting position of the paper feed roller 1.

  Note that the same effect as described above can be obtained even when a plurality of wheels to which rubber rollers are attached are connected in order to widen the sheet feeding roller. However, when a rubber roller having a width 1.5 times that of the conventional one is used as a single unit, it becomes impossible to feed paper under the conventional conditions as described above, and the rubber roller is worn or soiled. When the replacement is attempted, the width of the widened rubber roller hinders the replacement operation.

As materials used for the wheel 2 and the rubber rollers 3A and 3B, known materials are preferably used and are not particularly limited.
There may be three or more rubber rollers attached to one wheel 2, and it is not necessary that the width of one of them is the same as that of the conventional one, and each width can be set as appropriate. Moreover, when using a some wheel, the number can be set suitably.
Further, in the stopper member 4, it is not necessary to provide a fitting portion only in the second sandwiching body 4b, but a fitting portion is provided in both the first sandwiching body 4a and the second sandwiching body 4b. Thus, the groove 10a of the roller drive shaft 10 may be sandwiched.

1 Feed roller 2 Wheel 2c Boundary ribs 3A and 3B Rubber roller 10 Roller drive shaft

Claims (1)

A paper feed roller used to feed the stacked paper sheets one by one in the newspaper advertisement collating apparatus,
A single wheel connected to the roller drive shaft;
A rubber roller disposed on the outer peripheral surface of the wheel,
A plurality of the rubber rollers are connected along the axial direction of the roller drive shaft,
Boundary ribs are formed in the middle portion of the wheel outer peripheral surface along the circumferential direction of the wheel, and rubber rollers are respectively disposed on the wheel outer peripheral surface portions on both sides of the boundary rib, and the boundary ribs are disposed between the plurality of rubber rollers. In contact with the side edge of the rubber roller,
Further, a paper feeding method using the paper feeding roller,
When feeding a first paper sheet among a plurality of paper sheets of different materials, a paper feed roller to which all rubber rollers are attached among a plurality of rubber rollers attached to a single wheel is used. A paper feed roller in which at least one of a plurality of rubber rollers attached to a single wheel is removed when feeding paper and feeding a second paper different from the first paper Paper feeding method characterized by feeding paper using

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