JP6324744B2 - Transporter transport device - Google Patents

Description

  The present invention relates to a transfer body transport apparatus that sequentially transports a transfer body such as a single piece of paper, a folded form, and a sealed letter.

  In recent years, when printing on a single piece of paper or a sealed letter, or when counting forms or sealed letters after printing, or when confirming an address, it is generally carried out using a feeder. ing. It is important that such a feeder is basically not double-feeded. For this reason, it is necessary to adjust the gap according to the thickness, friction, shape, etc. of the transfer body at the part where the transfer body of the feeder is sent out. . Such gap adjustment is desired to be simple without being influenced by individual differences.

  Conventionally, there are various methods of transporting a feeder that transports a transfer body such as a single piece of paper, a folded form, a sealed letter, etc., but the method called top feed is not suitable for thick sealed letters, and the method called shuttle feed is A system called unsuitable for single-sheet paper and a method called round feed is unsuitable for sealed letters, and there is a system called bottom feed that applies a conveying force to the lower surface of the transfer body as one that can be applied to all of these transfer bodies. .

  For example, those described in Patent Documents 1 and 2 are known as bottom feed type conveying apparatuses. In Patent Literature 1, a plurality of belt transfer mechanisms are provided in which an endless belt is suspended and driven between support rolls, and a nip width (gap) formed by a support roll (endless belt) and a gate forming roll at a delivery part. The gate forming roll is attached to a sleeve extending upward through a spring, and a knob for adjusting the position of the gate forming roll is provided at the end of the sleeve. At the same time, it is disclosed that double feed can be avoided by adjusting the nip width (gap) between the support roll for feeding the sheet and the gate forming roll.

  Further, in Patent Document 2, a movable shaft is supported by a fixed sleeve so as to be movable up and down, and between the movable shaft and the fixed sleeve, a main elastic force for pressing the multifeed restricting member against the conveying belt is provided. The main compression coil spring is applied to the movable shaft, and the sub compression coil spring is applied to the movable shaft. The elastic force of the main compression coil spring is increased by screwing the upper adjustment bolt. However, it is disclosed that the increase is offset by an increase in the elasticity of the sub-compression coil spring.

Japanese National Patent Publication No. 11-504308 JP 2010-208756 A

  However, the conveying device disclosed in Patent Document 1 performs a nip adjustment (adjustment of the thickness of the transfer body) by turning one knob, and the adjustment range is narrow, and it is necessary to adjust to that extent. There is a problem that it takes. In addition, the conveyance device disclosed in Patent Document 2 adjusts the nip by operating one adjustment bolt, and the adjustment range is wide by the two springs of the main compression coil spring and the sub compression coil spring. Although it can be performed roughly, there is a problem that there is no height restriction only by the nip adjustment, and there is a high possibility that double feed is performed.

  Accordingly, the present invention has been made in view of the above problems, and provides a transfer body transport apparatus that can easily adjust the nip width of the transfer body without being influenced by individual differences and avoid double feed. With the goal.

In order to solve the above-mentioned problem, in the invention of claim 1, a nip formed by a feeder transport member that applies a transport force to the bottom surface of the transport body and a grip member that moves up and down by an elastic body. A transfer body conveying device that sequentially sends out from the area, and has a nip adjusting unit that adjusts the nip width of the nip area by moving the grip member in the thickness direction of the transfer body according to the thickness of the transfer body, nip the nip adjustment unit, and the nip lower limit setting unit Ru set Teisu without the nip pressure to the conveying member at a nip width exceeding one minute of the thickness of the conveying member, which is set at the nip lower limit setting unit A nip upper limit setting unit that is larger than the width and is set to a nip width less than the thickness of the two transfer bodies, and an elastic pressure setting unit that sets the elastic pressure of the elastic body.

According to the present invention, the nip width of the nip region formed by the feeder conveying member that applies a transfer force to the bottom surface of the transfer body and the grip member that moves up and down by the elastic body is set at the nip lower limit setting section of the nip adjustment section. The nip width that exceeds the thickness of one of these is set without applying nip pressure to the transfer body, and is larger than the nip width set in the nip lower limit setting section in the nip upper limit setting section of the nip adjustment section. By setting the nip width to less than two thicknesses and setting the elastic pressure of the elastic body in the elastic pressure setting section, the nip width is set at the lower limit and upper limit, and is not affected by individual differences. Since the setting of the nip width and the setting of the elastic pressure of the elastic body are separate mechanisms, it can be easily adjusted and the double feed of the transfer body can be avoided.

It is a schematic block diagram of the transfer body conveying apparatus which concerns on this invention. It is explanatory drawing of the nip minimum setting of FIG. It is explanatory drawing of the nip upper limit setting of FIG. FIG. 2 is an explanatory diagram of the separation conveyance in the transfer body conveyance of FIG. 1.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the schematic block diagram of the transfer body conveying apparatus which concerns on this invention is shown. FIG. 1 (A) shows a schematic configuration of the transfer / conveyance device, and FIG. 1 (B) shows a configuration from the side of the conveyance unit by rolling the feeder unit.

  In FIG. 1 (A), the transfer body conveyance apparatus 11 is comprised by the feeder part 12, the separation conveyance part 13, and the stacker 14. FIG. In the feeder unit 12, a feeder conveying belt 15 (15 </ b> A, 15 </ b> B) as a feeder conveying member is suspended between a feed driving roller 16 and a belt suspension roller 17. Actually, they are arranged in two rows as an example (see FIG. 1B). In the feed drive roller 16, a drive shaft (59 in FIG. 1B) is rotated by a drive motor or the like (not shown).

  A grip roller 18 (18A, 18B), which is a grip member, is positioned above the feed drive roller 16. Actually, they are arranged in two rows corresponding to the feeder transport belt 15 (15A, 15B) (see FIG. 1B). A nip adjusting portion 20 for the grip roller 18 (18A, 18B) is provided. A gap between the feeder conveyance belt 15 (15A, 15B) on the feed driving roller 16 and the grip roller 18 (18A, 18B) is a nip region for rolling the transfer body and feeding it to the conveyance unit 13 side. The nip adjusting unit 20 adjusts the nip width of the nip region by moving the grip roller 18 (18A, 18B) in the thickness direction of the transfer body according to the thickness of the transfer body 21, and FIG. I will explain it.

  Further, on the feeder transport belt 15 (15A, 15B), the supply set unit 19 is provided on the grip roller 18 (18A, 18B) side, and the transfer body 21 is stacked thereon. The transfer body 21 is, for example, a single piece of paper, a folded form, a sealed letter, and more specifically, a postcard, a folded postcard, an A4 size single piece of paper, a fixed form letter, a non-standard form letter, or the like.

  The separation conveying unit 13 is positioned in the vicinity of the discharge side of the feeder unit 12, and the lower separation conveyance belt 22 and the upper separation conveyance belt 25 are arranged in a substantially contact state. Actually, they are arranged in two rows corresponding to the feeder transport belt 15 (15A, 15B). The belt 21 is conveyed in a state where the transfer body 21 is held by the belt contact portion. The winding conveying belt 22 is suspended between a belt suspension roller 23 and a separation driving roller 24, and the separation conveying belt 25 is suspended between a belt suspension roller 26 and a separation driving roller 27. The rolling drive rollers 24 and 27 are rotated by a drive motor (not shown). Further, presser rollers 28 and 29 for ensuring contact with the lower-side separating conveyor belt 22 are provided in the upper-stage separating conveyor belt 25.

  A stacker 14 is disposed in the vicinity of the discharge side of the whirling transport unit 13. The stacker 14 is provided with a stacker transport belt 30 and sequentially receives the transfer bodies 21 sent out from the transporting section 13.

  On the other hand, as shown in FIG. 1B, the nip adjusting unit 20 includes a nip lower limit setting dial 31 that constitutes a nip lower limit setting unit, a nip upper limit setting dial 32 that constitutes a nip upper limit setting unit, and an elastic pressure setting unit. A spring pressure setting dial 33 is provided. Each of these dials is, for example, a dial gauge, and the measurement movable shaft is here the respective adjustment shaft 31A, 32A, 33A. Since the scales for the positions of the adjustment shafts 31A, 32A, and 33A can be visually observed, an adjustment value by one worker can be shared as an adjustment value by another worker.

  The nip lower limit setting dial 31 is fixed to the first movable plate 41, and the adjustment shaft 31 </ b> A extends downward via the flange 42. A support plate 43 is fixedly disposed below the first movable plate 41, and an adjustment shaft lower limit receiving portion 44 is formed at a position corresponding to the adjustment shaft 31A. Strictly speaking, the nip lower limit setting dial 31 and the adjustment shaft lower limit receiving portion 44 constitute a nip lower limit setting portion.

  The nip upper limit setting dial 32 is fixed to a dial support plate 45 that is fixedly arranged, and the adjustment shaft 32 </ b> A extends downward via a flange 46. An adjustment shaft upper limit receiving portion 47 is provided on the first movable plate 41 at a position corresponding to the adjustment shaft 32A. Strictly speaking, the nip upper limit setting dial 32 and the adjustment shaft upper limit receiving portion 47 constitute a nip upper limit setting portion.

  The spring pressure setting dial 33 is fixed to a dial support plate 45 that is fixedly arranged, and an adjustment shaft 33A extends downward via a flange 48, and a spring receiving portion 49 is attached. A spring support portion 50 is provided at a position corresponding to the adjustment shaft 33 </ b> A on the first movable plate 41, and a coil spring 51 that is an elastic body is provided between the spring support portion 50 and the spring receiving portion 49. Strictly speaking, the spring pressure setting dial 33, the spring receiving portion 49, and the spring support portion 50 constitute an elastic pressure setting portion.

  Movable support rods 52, 53 are provided on the lower surface of the first movable plate 41, extending downward through corresponding flanges 54, 55 of the support plate 42, and their respective tips are mounted on the second movable plate 56. It is done. A grip roller support rod 57 is attached to the lower surface of the second movable plate 56, and its tip is attached to the roller fixing shaft 58 of the grip rollers 18A and 18B. In addition, the cross-hatched part in FIG. 1B is shown as a member that can move up and down integrally.

  The feeder transport belts 15A and 15B on the feed drive roller 16 facing the grip rollers 18A and 18B are attached to a drive shaft 59 and rotated by a drive motor or the like (not shown).

  Here, FIG. 2 shows an explanatory diagram of the nip lower limit setting of FIG. 1, and FIG. 3 shows an explanatory diagram of the nip upper limit setting of FIG. 2 and 3 show only the part related to the description of the setting operation.

  2A, when the tip of the adjustment shaft 31A of the nip lower limit setting dial 31 is not in contact with or in contact with the adjustment shaft lower limit receiving portion 44 of the support plate 42, the feeder transport belts 15A and 15B and the grip roller 18A are in contact. , 18B are in contact (zero nip width).

  Then, as shown in FIG. 2B, when the nip lower limit setting dial 31 is rotated in one direction, the adjustment shaft 31A extends downward, and the tip thereof comes into contact with the adjustment shaft lower limit receiving portion 44. The first movable plate 41 is pushed up with respect to the fixed support plate 43 by extending the adjustment shaft 31A. As a result, the movable support rods 52 and 53, the second movable plate 56, the grip roller support rod 57 and the grip roller fixing shaft 58 are pushed up integrally with the first movable plate 41, and the grip rollers 18A and 18B and the feeder transport belt 15A, A nip region is formed between 15B and 15B.

  The nip width Ns of the nip region is set to a value exceeding the thickness of one transfer body 21. The nip width can be confirmed on the scale of the nip lower limit setting dial 31 and can be shared by holding this value. In addition, for example, in the past, since the folded form is twisted by the nip pressure, it has been necessary to set the folded portion at the top, so that the nip width Ns exceeds the thickness of one transfer body 21. By setting the value, the nip pressure is not applied and the sheet can be set from any direction.

  In order to determine the maximum value Nmax of the nip width, as shown in FIG. 3A, the adjustment shaft 32A is moved up and down with respect to the dial support plate 45 by rotating the nip upper limit setting dial 32, The gap distance between the tip and the tip of the adjustment shaft upper limit receiving portion 47 provided on the first movable plate 41 is set. In this case, the nip width (maximum nip width) is larger than the lower limit nip width Ns set by the nip lower limit setting dial 31 and is set to be less than two thicknesses of the transfer body 21.

  Therefore, as shown in FIG. 3B, even when one transfer body 21 passes through the nip region, even if the tip of the next transfer body 21 enters and the grip rollers 18A and 18B are flipped up, the adjusting shaft The tip of the upper limit receiving portion 47 hits the tip of the adjustment shaft 32A of the nip upper limit setting dial 32, so that it can be prevented from being raised further and double feed can be prevented. This nip width (maximum nip width) can be confirmed on the scale of the nip upper limit setting dial 32, and can be shared by holding this value.

  In this case, the spring-up force is adjusted by the elastic pressure (spring pressure) of the coil spring 51 set by the spring pressure setting dial 33. If the spring pressure is set too strong, it will adversely affect the next-invading transfer body 21, and if it is set too weak, the nip width is always the maximum width, which is not preferable. This spring pressure setting value can also be confirmed on the scale of the spring pressure setting dial 33, and can be shared by holding this value.

  In this way, since the nip width is set at the lower limit and the upper limit, it is not affected by individual differences, and since the setting of the nip width and the setting of the spring pressure of the coil spring 51 are separate mechanisms, it can be easily adjusted. The double feed of the transfer body 21 can be avoided.

  Next, FIG. 4 shows an explanatory diagram of the separation and conveyance in the transfer body conveyance of FIG. The conveyance form shown in FIG. 4 deals with a double feed when the nip lower limit setting or the nip upper limit setting is rough. 4B and 4C, the mechanism of the upper conveying belt 25 is omitted. That is, as shown in FIG. 4A, the driving speed S2 of the separating conveyor belts 22 and 25 of the separating and conveying section 13 is set faster (S1 <S2) than the driving speed S1 of the feeder conveying belt 15 of the feeder section 12. doing.

  For example, as shown in FIG. 4 (B), when the transfer body 21 is sent out in the feeder transport unit 12 and the next transfer body 21B passes while the transfer body 21A is being sent out, as shown in FIG. 4 (C). The previous transfer body 21A enters the transporting belts 22 and 25 and is transported at the driving speed S2, and the next transport body 21B transported at the drive speed S1 from the feeder unit 12 is delayed and transported by the transporting belts 22 and 22 25 enters and is transported.

  As a result, the previous transfer body 21A and the next transfer body 21B are separated according to the speed difference (S2-S1), and are not discharged to the stacker 14 in an overlapped state (double feed). is there.

  Thus, even if double feeding occurs in the feeder unit 12 by setting the conveying speed with the conveying unit 13 faster than the conveying speed of the feeder unit 12, the stacker 14 at the final stage can be discharged alone. It can be done. This means that the nip lower limit setting, the nip upper limit setting, and the spring pressure setting can be made simpler (rough).

  The transfer body conveyance device of the present invention can be used in industries such as manufacture and use of an apparatus that sequentially conveys a transfer body such as a single piece of paper, a folded form, and a sealed letter.

DESCRIPTION OF SYMBOLS 11 Transfer body conveyance apparatus 12 Feeder part 13 Separation conveyance part 14 Stacker 15 Feeder conveyance belt 18 Grip roller 20 Nip adjustment part 21 Transfer body 22, 25 Separation conveyance belt 31 Nip lower limit setting dial 32 Nip upper limit setting dial 33 Spring pressure setting dial 41 First movable plate 43 Support plate 44 Adjustment shaft lower limit receiving portion 47 Adjustment shaft upper limit receiving portion 51 Coil spring

Claims (1)

A transporter transport device that sequentially feeds the stacked transporters from a nip region formed by a feeder transport member that applies a transport force to the bottom surface of the transport body and a grip member that moves up and down by an elastic body,
In accordance with the thickness of the transfer body, the grip member is moved in the thickness direction of the transfer body to adjust the nip width of the nip region,
The nip adjusting unit is
Nip lower limit setting unit Ru set Teisu without the nip pressure to the conveying member at a nip width exceeding one minute of the thickness of the conveying member,
A nip upper limit setting unit that is larger than the nip width set in the nip lower limit setting unit and is set to a nip width less than two thicknesses of the transfer body;
An elastic pressure setting unit for setting an elastic pressure of the elastic body;
A transporter conveying apparatus comprising:

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