JPH0485232A - Conveying apparatus for conveyed material - Google Patents

Abstract

PURPOSE:To facilitate taking in a conveyed material regardless of thickness of the conveyed material by providing a space setting means for setting the clamping space for clamping the conveyed material by a conveyance means according to the thickness information of a detection means. CONSTITUTION:The thickness (b) of a conveyed material B is detected by a clamping means 27 in a detection means. According to the detection result, the space (b) for clamping the conveyed material B by conveyance means 56, 58 is set by a space setting means 52 through transmission means 31, 40.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a conveyance device for conveying objects such as banknotes, envelopes, postcards, manuscripts, cardboard, and copy paper.

[Prior art] Conventionally, as a conveyance device for conveyed items such as envelopes and postcards, the eighth
As shown in the figure, there is a conveyance device T1 configured to sandwich and convey a conveyed object B between a pair of conveyor belts 1 and 2 supported by a plurality of tension rollers. This device T
1, the conveyed object B is bitten by the elongation of the conveyor belt 1.2 as shown in the figure.

Further, in the conveying device T2 shown in FIG. 9, a pair of rollers 3.4
One of the rollers 3 is retracted in the thickness direction due to the entry of the conveyed object B, thereby causing biting.

Furthermore, there is a device, such as the device T3 in FIG. 10, in which the diameter of one roller 5 of a pair of rollers 5.6 is increased in order to facilitate the biting of the conveyed object B.

[IL to be solved by the invention However, if the conveyed object B is conveyed while being held between the belts 1 and 2 supported by tension rollers as in the conventional apparatus TI, the conveyed object B is always forced to curve. ,
There is a problem in that although there is little resistance for weak conveyed objects, the resistance increases for stiff conveyed objects.

In a configuration like the device T2, resistance is large when the conveyed object B bites into the conveyed object, and depending on the case, it may become impossible to convey it.

In the device T3, which eliminates the drawbacks of the device T2, it is relatively easy for the conveyed object B to bite into the conveyed object B, but another problem arises in that the rollers 5 become large and the entire conveying device cannot be downsized.

[One Object of the Invention] The present invention has been made in view of the problems in the conventional technology, and provides a conveyance device for a conveyed object that can easily take in the conveyed object regardless of the thickness of the conveyed object. It is intended to.

[! Means for Solving Problem 11] In order to achieve the above object, the present invention provides a detection means for detecting the thickness of a conveyed object in a conveyance device for conveying a conveyed object in which the conveyed object is held and conveyed by a plurality of conveying means. and an interval setting means for setting a clamping interval for clamping the conveyed object of the conveying means based on the thickness information of the detecting means.

[Operation] The detecting means detects the thickness of the conveyed object, and based on the detection result, the interval setting means sets the interval at which the conveying means clamps the conveyed object.

[Example code] Next, an embodiment of the present invention will be described based on the drawings.

Configuration> As shown in FIGS. 1 and 2, the transported object storage device 1O includes a transport section 20 and a storage section 50.

As shown in FIG. 3, the conveying section 20 includes a bracket 21 having a guide slot 21a guided by guide bins 22a and 22b fixed to a frame body (not shown) above the conveying path P, and a biasing spring. 23, it is constantly urged downward.

An engagement pin 24 is implanted in the bracket 21 to engage with a drive member 35, which will be described later, to limit the amount of descent.

Further, a shaft 25 is fixed to the bracket 2, and a pinching roller 27 constituting a pinching means 26 is pivotally supported on this shaft 25. Then, this pinching roller 2
Below 7, a roller 28 is pivotally supported by a frame (not shown) as a pinching receiver which also constitutes the pinching means. In addition,
In this pinch receiver, the roller 28 also serves as a conveyance roller for the conveyed object B, and is configured to be driven by a drive motor (not shown).

A pinching arm 29 is supported on the shaft 25 together with a pinching roller 27 . This pinching arm 29 has elongated guide holes 29 a and 29 b.
It is guided so as to be movable in the vertical direction by guide pins 30a and 30b fixed to the frame.

Further, a shaft 32 is fixedly provided near the lower end of the pinching arm 29, and a swinging lever 31 constituting a transmission means is pivotally supported on the shaft 32. An engagement pin 33 that engages with the drive member 31 is implanted near the center of the swinging lever 31.

The drive member 35 has a guide elongated hole 35a for guiding, and is guided in the vertical direction by guide pins 36a and 36b.

A rack 35b is carved on one side of the drive member 35, and this rack 35b meshes with the intermediate gear 37.

This intermediate gear 37 is connected to a thickness detection drive motor 38.
It meshes with a drive gear 39 provided on the output shaft of.

Further, near the lower end of the drive member 35, an engagement square hole 35c is formed which engages with the engagement pin 33 of the swinging lever 31 and is a component of the transmission means.

The distance between the pinching means 26 and the driving member 35; the force of a detection sensor 34 (disposed) that detects the conveyed object B across the conveyance path.The detection sensor 34 detects the conveyed object B on the conveyance path P. When not doing so, the drive member 35 is pushed up to its upper limit position by the thickness detection drive motor 38 as shown in FIG.
Reference numeral 7 indicates that the pinch receiver is located at a position spaced apart from the roller 28 by a predetermined distance S.

Further, the thickness detection drive motor 38 is configured to be able to descend by the predetermined interval SO in the downward direction as well, regardless of the presence or absence of an object to be conveyed.

Therefore, if the thickness of the conveyed object B is b, the pinching roller 27 must be required at a minimum (s
-b Must descend by > height.

However, the driving member 35 further has S − (S − b )=
You will have to move an additional b distance.

On the other hand, as shown in the figure, one end of the swinging cylinder lever is provided with an engagement notch 31a that engages with an engagement pin 42 of a second swinging lever 40, which will be described below.

The second swinging lever 40 constituting the transmission means is pivoted approximately at the center of its length by a swinging shaft 41, and has an engagement notch 40a provided at the other end.

As shown in FIG.
2 are arranged.

The movable member 52 is guided in the vertical direction by guide bins 53a and 53b through a vertically bored guide slot 52a, and has an engagement notch 40a for the swinging second lever 40 near the lower end.
An engagement pin 54 is installed that engages with and transmits its vertical movement.

A gate roller 56 (conveying means) is provided on the upper part of the moving member 52.
is pivotally supported on a shaft 55, and a gate roller 58 (transport means) is pivotally supported on a shaft 57 provided in the case 51, with the gate roller 56 sandwiching the transport path P therebetween. This gate receiver is the roller 58, and the pinch receiver is the roller 2.
Similarly to 8, it is configured to be driven by a drive motor (not shown). Note that the conveyance means is not limited to rollers.
A belt or a combination of a roller and a belt may be used.

As shown in the figure, a rack 52b that engages with a coupling gear 61, which will be described later, is carved on one side of the moving member 52.

As shown in FIG. 2, inside the case 51, there is provided a support member 60 that is guided by a vertically erected guide shaft 59 and receives a conveyed object. A coupling gear (coupling means) 61 rotatable in one direction (clockwise in the drawing) is supported at the other end, and a locking gear 64 of a locking means 62 is also rotatably supported in one direction (clockwise).

The locking means 62 includes a fixed rack 63a formed on a fixed rack member 63 fixed to the case 51, and a locking gear 6.
It consists of 4.

Further, as shown in the figure, the support member 60 is always urged upward by a tension spring (biasing means) 65, that is, in a direction that reduces the storage volume within the case 51.

〉 Next, the operation will be explained.

Before the conveyed object B is detected by the detection sensor 34, the driving member 35 is at its uppermost position as shown in FIG. It is pushed up to the uppermost position against the force spring 23.

Since the bracket 21 and the pinching arm 29 are connected at the shaft 25, the pinching arm 29 is also pulled up to the uppermost position, and the pinching roller 27 is moved as shown in the same figure.The pinching receiver is separated from the roller 28 by a predetermined distance S. are facing each other.

When the conveyance object B is sent to the conveyance path P and detected by the detection sensor 34, the thickness detection drive motor 3 is activated by this detection signal.
8 is started, the intermediate gear 37 rotates counterclockwise in the figure, and the drive member 35 meshing with the intermediate gear 37 is moved downward.

As the driving member 35 moves downward, the bracket 21 pressed by the biasing spring 23 also moves downward, causing the pinching roller 27 to move downward together with the pinching arm 29. By moving at least by (S-b), the nipping roller 27 and the nipping receiver nip the conveyed object B between the rollers 28, as shown in FIG.

Even in the above state, the drive motor 38 continues to drive.

Even if the drive member 35 continues to descend, the pinching arm 29
Since the nipping rollers 27 are nipping the conveyed object B, the downward movement is stopped.

Then, the square engagement hole 35C of the drive member 35 eventually engages with the engagement pin 33 of the swinging lever 31 of the transmission means, pushes it down, and rotates it clockwise around the axis 32I as shown in FIG. Rotate. Due to this rotation, the engagement notch 31a of the swinging lever 31 engages with the engagement pin 42 of the swinging second lever 40, which also serves as a transmission means, and the swinging second lever 40 is connected to the swinging shaft 41. Rotate counterclockwise around the center.

The engagement notch 40a is opened by the swinging of the swinging second lever 40.
pushes up the moving member 52 of the storage section 50. Then, the gate roller 56 rises and the gate roller 58 moves up.
A gate interval approximately equal to the thickness b of the conveyed object B is provided between the two.

Note that when the moving member 52 rises, the coupling roller 61 rotates clockwise as shown in FIG. 6(b). However, the locking roller 64 does not rotate and prevents the support member 60 from rising.

Since the amount of movement of the drive member 35 after sandwiching the conveyed object B is equal to the thickness b of the conveyed object B as described above, the square engagement hole 35c and the engagement pin 33 should normally be closely spaced. However, the length of the lever from the position of the engaging pin 33 to the engaging pin 42 of the second rocking lever 40 is taken into account, and the amount of movement of the engaging pin 42 is exactly equal to the thickness b. It is constructed so that it is equal to or slightly smaller than .

Even during the above operation, the conveyed object B advances along the conveyance path P, and from the storage section 500 cases 51a to the gate roller 5
6 and the gate receiver pass between the roller 58 and the support member 60.
accommodated above. At this time, the roller 58 of the gate receiver is driven by a drive motor (not shown).

On the other hand, when the rear end of the conveyed object B passes the detection sensor 34,
In response to this signal, the thickness detection drive motor 38 immediately starts rotating in reverse. Therefore, the drive member 35 rises, pushes up the bracket 21, raises the pinch arm 29, and thereby pulls the pinch roller 27 to a predetermined position.

Due to the above-mentioned lifting operation, the swinging lever 31 also rotates counterclockwise, and the engagement with the swinging second lever 40 is released.

Then, when the conveyed object B passes the gate roller 56, the moving member 52 descends. At this time, the amount of descent of the moving member 52 corresponds to the thickness b of the conveyed object B since the initial upward amount corresponds to the thickness b of the conveyed object B. .

At that time, as shown in FIG. 6(C), since the coupling gear 61, which is the coupling means, cannot rotate counterclockwise, it descends while coupled to the rack 52b of the movable member 52, and the coupling gear 61 pivots. The supporting member 60 is pushed down by the thickness b of the transported object B.

The support member 6o, which has been pushed down by the thickness b of the conveyed object B, is constantly pulled upward by the tension spring 65;
A locking gear 64 pivotally supported at the other end of this support member 60
Since it cannot rotate clockwise, it does not rotate while being engaged with the fixed side rack 63a of the fixed rack member 63, and the supporting member 60 is stopped at that position.

Note that FIG. 6(a) shows the state before operation, and FIG. 6(b) is an explanatory diagram of the operation while the moving member 52 is rising. In this case, the support member 60 constitutes the locking means 62. While stopping at the initial position by the locking gear 64, the coupling gear 61
shows a state in which the moving member 52 is rotated clockwise and allowed to rise.

<Effects of the Embodiment> According to this embodiment, there is a detection means for detecting the thickness b of the conveyed object B, and an interval setting for setting the clamping interval for clamping the conveyed object B based on the thickness information of this detection means. Since the means is provided, the biting resistance and the conveyance resistance hardly change even when conveyed objects of different thicknesses or stiff conveyed objects, and it is possible to provide a conveying device with very low conveyance resistance.

Further, a drive member 35 capable of reciprocating a predetermined distance and a pinching means 26 for sandwiching the conveyed object B are provided, and the drive member 3
During the forward movement of 5, one of the pinching rollers 27 is moved by a predetermined distance S, and during the backward movement, the engagement operation is performed up to the moving distance (S-b), and after the movement, the movement of the pinching roller 27 is stopped, and the driving member 35 is made to move independently corresponding to the thickness b of the remaining conveyed object B, and the independent movement amount is transmitted to the gate roller 56 via the swing lever 31, 40, so that an expensive pulse motor etc. It can be manufactured at low cost without relying on electrical means, and, like the above, the biting resistance and conveyance resistance are almost unchanged even when conveyed objects of different thickness or stiff conveyed objects, and the conveyance resistance is extremely small.

<Modifications> The present invention is not limited to the above-mentioned embodiments, and for example, the following modifications are possible.

(1) The engagement between the movable member 52 and the coupling gear 61 and the engagement between the fixed rack member 63 and the locking gear 64 were performed using racks and gears, but the engagement between the moving member 52 and the coupling gear 61 and the engagement between the fixed rack member 63 and the locking gear 64 were performed using racks and gears. Ml engagement can also be used.

(2) The storage unit is not limited to one in which the support member 60 moves in the vertical direction, but the storage capacity may be increased in the horizontal direction by moving the support member in the horizontal direction and standing up the conveyed items. . In this case, it is necessary to provide a pressing means for pressing the conveyed object toward the support member and a biasing means for always biasing the gate roller in the closing direction.

(3) Although the coupling roller 61 with a one-way rotation clutch is used as a coupling means, it is also possible to couple the moving member 52 and the support member 60 by turning on and off a solenoid.

(4) The pinching means is not limited to the pinching rollers as in the above embodiments, but may also be plates or the like.

(5) The thickness detecting means does not use a clamping means as in the above embodiment, but instead uses a thickness detecting lever 70 that swings as shown in FIG. 70 and detects the swing angle using an encoder 71 or the like. Alternatively, the clamping interval of the conveyed object B may be set by an electric interval setting means.

(6) In the above embodiment, the gear 6164 is attached to the support member 60, and the moving member 52 and the fixed rack member 63 are provided as members that mesh with the gear 6164, but conversely, the gear 6164 is attached to the support member 60.
A rack member is provided at the rack member, and two gears that mesh with this rack member are moved together with the roller 56 (a moving member 52
), and may also be provided so as not to move (such as a fixed rack member 63).

[Effects of the Invention] The present invention provides a conveying device for conveying a conveyed article in which the conveyed article is held and conveyed by a plurality of conveying means, which includes a detection means for detecting the thickness of the conveyed article, and a detection means that detects the thickness of the conveyed article based on the thickness information of the detection means. and an interval setting means for setting a clamping interval for clamping the conveyed object of the conveying means, so that the detecting means detects the thickness of the conveyed object, and based on the detection result, the interval setting means sets the clamping interval of the conveying means. is set, and it is possible to obtain a conveyance device for a conveyed object that can easily take in the conveyed object regardless of the thickness of the conveyed object.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment of the present invention, Figures 1 and 212 are configuration diagrams of the conveyance device, and Figures 3 to 5 show the configuration and operation of the conveyance section and storage section. The figures for explanation, FIGS. 6(a) to 6(e), are explanatory views of the operation of the storage section. FIG. 7 is a diagram showing a modification of the invention. 8 to 10 are explanatory diagrams of the prior art. 10... 1 Conveyance device 20... Conveying section 21... Bracket 26... Clipping means 27... Clipping roller 28... Clipping receiver is a mouth-roller 29... Clipping arm 31. ... Swinging second lever (transmission means) 35 ... Drive member 35b ... Rack 35c ... Square hole for engagement (transmission means) 38 ... Thickness detection drive motor 40 ... Swinging Second lever (transmission means) 41... Swing shaft 42... Engagement pin 50... Storage section 51... Case 51a... Case entrance 52... Moving member 52b... Rack 54 ...Engaging pin 56...Gate roller 58...Gate receiver is roller 59...Guide shaft 60...Support member 61...Coupling gear (connecting means) 62...Locking means 63 ... Fixed rack member 63a ... Fixed side rack 64 ... Locking gear 65 ... Tension spring (biasing means) B ... Transported object b ... Thickness of transported object P ... Conveyance path S...Predetermined intervals Fig. 2 - Fig. 3 Fig. 10 γ

Claims (4)

[Claims] (1) In a conveyance device for conveying a conveyed article in which the conveyed article is held and conveyed by a plurality of conveyance means, a detection means for detecting the thickness of the conveyed article, and based on the thickness information of the detection means, the conveyance of the conveyance means is performed. What is claimed is: 1. A conveyance device for conveyed objects, comprising: interval setting means for setting a clamping interval for clamping objects. (2) The detection means includes a pinching means for pinching the conveyed object in the thickness direction thereof, and a transmission means for transmitting the pinching interval to the spacing setting means according to the pinching amount of the pinching means. The conveying device for conveyed objects according to claim 1. (3) The apparatus for conveying a conveyed object according to claim 1, wherein the interval setting means sets the interval between the conveying means to be equal to or less than the thickness of the conveyed object. (4) The conveying device for conveyed objects according to claim 1, wherein the conveying means is provided at an entrance of a storage section that accommodates the conveyed objects.