JPH0233039A - Conveyer - Google Patents

Abstract

PURPOSE:To rotate both the paired rollers by a single driving means by providing the driving means rotating both the first and second circulating belt-shaped members to be driven through interlocking means. CONSTITUTION:The first rollers 30 are rotated by driving power of a motor 56 through driving sprockets 50, 52, first chain 54 and the first sprockets 46. The second rollers 32 are rotted by the driving power of the motor 56 through gears 72, 74, driving sprockets 62, 64, second chain 66 and the second sprockets 48. When a paper is conveyed, an engaging side of the first chain 54 with the first sprockets 46 is loosened by setting tension sprockets 58, 60, and the paper passes through between the first and second rollers 30, 32 by attaching the first roller 30 to and detaching it from the second roller 32 with the first chain 54 left as engaged with the first sprockets 46.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention rotates both of a pair of rollers that are provided so as to be able to come into contact with and separate from them to nip and convey an object between the pair of rollers, and at the same time, rotates one of the rollers. The present invention relates to a conveyance device that opens a conveyance path for a conveyed object by moving it from a conveyance position of the conveyed object.

[Conventional technology]

2. Description of the Related Art As a conveyance device, a structure is known in which a pair of rollers are provided so as to be able to come into contact with and separate from each other, and both of the pair of rollers are rotated to sandwich and convey an object between the pair of rollers.

In this type of conveyance device, gears that mesh with each other are attached to both of the pair of rollers, and both of the pair of rollers can be rotated by a single driving means via the gears. Further, the bearing member of one of the rollers is detachably attached, so that one roller can be moved from the conveyance position of the conveyed object to open the conveyance path of the conveyed object in the event of a jam or during maintenance.

However, in a conveyance device with such a configuration, when the conveyance path of the conveyed object is opened, one gear comes off from the other gear as one roller moves, and then one roller is moved to the conveying position of the conveyed object. In order to return to the previous state, gears with high meshing accuracy had to be meshed together, and in some cases, the gears had to be finely adjusted, which was not easy.

Also, when the conveyed object passes between the pair of rollers during conveyance, the pair of rollers are separated according to the thickness of the conveyed object, and as the rollers move at this time, one gear moves in the direction away from the other gear, and when conveying a relatively thick item such as a booklet, one gear becomes detached from the other gear and the drive shifts from both drives to the left, reducing the conveying force of the object. The object to be transported cannot be transported smoothly.

[Problem to be solved by the invention]

In consideration of the above facts, the present invention has a configuration in which both of the pair of rollers can be rotated by a single driving means, and one roller can be moved from the conveyance position of the conveyed object to open the conveyance path of the conveyed object. , one of the rollers can be easily returned to the conveyance position of the conveyed object after opening the conveyance path of the conveyed object, and even relatively thick conveyed objects such as booklets can be conveyed smoothly. The purpose is to obtain a transport device.

[Means to solve the problem]

In the present invention, the first roller is provided so as to be able to come into contact with and separate from the second roller, and both the first and second rollers are rotated.
A conveying device that pinches and conveys the conveyed object between the 20th rollers and moves the second roller from the conveyance position of the conveyed object to open the conveyance path of the conveyed object, the conveyance device coaxially connected to the 10th roller. A first toothed wheel fixed thereto, a second toothed wheel coaxially fixed to the 20th roller, supported in an annular shape and partially extending along the lower side of the first toothed wheel. a first circulating belt-shaped body that is bent and engages the first toothed wheel in a convex-concave manner and bends to cause the tenth roller to approach and separate from the second roller while maintaining the engaged state with the first toothed wheel; It is annularly supported, a part of which extends along the lower side of the second toothed wheel, and engages with the second toothed wheel in a concave-convex manner at the object conveyance position of the 20th roller, and from this engaged state a second circulation band-shaped body that allows the teeth of the second toothed wheel to disengage and move the second roller to a position where the conveyance path of the conveyed object is opened;
interlocking means for interlocking the second circulation band and the first circulation band; and interlocking means for interlocking the second circulation band and the first circulation band;
and a driving means for rotationally driving both of the circulating belt-like bodies.

[Effect]

In the present invention having the above configuration, both the first circulating band body and the second circulating band body are rotated by the driving means via the interlocking means, and are rotated by the first toothed wheel and the second toothed wheel. Both the first roller and the second roller are rotated so that the first roller
, the object to be conveyed is pinched and conveyed between the second rollers.

During this conveyance, the first circulation belt is deflected by the first
Even when the first roller is brought into contact with and separated from the second roller while the toothed wheel is engaged with the first circulating belt-like member, and a relatively thick object is being transported, the first If the toothed wheel comes off the first circulating band and the first roller does not rotate,
In addition, the second toothed wheel does not come off the second circulating belt and the second roller does not stop rotating.

When the second roller is moved from the conveyance position of the conveyed object to open the conveyance path of the conveyed object, the second toothed wheel is moved from the second circulation band-shaped body as the second roller moves. In order to return the second roller to the transporting position of the transported object, it is necessary to engage the second toothed wheel with the second circulation belt, but this engagement is difficult due to unevenness. This is easier than meshing gears, and it is easier to set up the second gear than in the past.
rollers can be returned to the conveyance position for the conveyed object.

[Embodiments of the invention]

1 to 3 show an embodiment of a conveying device according to the present invention, and FIG. 4 shows an image recording apparatus 10 to which this embodiment is applied.

As shown in FIG. 4, in the image recording apparatus 10, the machine stand 12
A roll-shaped photosensitive material 16 is placed in a magazine 14 housed in a magazine 14.
is accommodated. The photosensitive material 16 is pulled out from its outer periphery, cut into a predetermined length by a cutter 18, and then fed into a thermal development transfer section 24 via an exposure section 20 and a water application section 22.

Exposure 120 is adapted to expose an image from original 26 onto photosensitive material 16 by optical means. Water application part 2
2 applies water as an image forming solvent to the photosensitive material 16.

The thermal development transfer section 24 receives a booklet 28 as an image receiving material from one side.
It is designed to be sent in an open state. The thermal development transfer section 24 is provided with first and second rollers 30.32 that constitute the conveying device according to the present invention, and the first and second loaves 30.32 are heated by a heater (not shown). The booklet 28 in an open state and the photosensitive material 16 are held and conveyed in close contact between the first and second rollers 30 and 32 while being heated, and the image recorded on the photosensitive material 16 is thermally developed. It is designed to be thermally transferred onto a booklet 28. The photosensitive material 16 after heat development is sent from the heat development transfer section 24 to the peeling section 34 while being in close contact with the booklet 28.
After being separated from the booklet 28 at the peeling section 34, it is sent to the waste photosensitive material storage box 3G.

On the other hand, the booklet 28 is fed into the drying section 38 and
After being dried, the paper is sent to a take-out tray 40 and can be taken out from the take-out tray 40.

To explain in detail the first and second rollers 30.32, as shown in FIGS. 1 and 2, the first and second rollers 30.32 sandwich the conveyance path of the booklet 28 and the photosensitive material 16. They are arranged in pairs on both sides facing each other, and three pairs are provided at predetermined intervals along the conveyance path of the booklet 28 and the photosensitive material 16.

Each first roller 30 is rotatably supported on a respective fixed bearing plate 42, and each second roller 32 is rotatably supported on a fixed bearing plate 42 and a separate movable bearing plate 44. The bearing hole 42A of the fixed bearing plate 42 is a long hole that allows the first roller 30 to approach and separate from the second roller 32.
The booklet 28 and the photosensitive material 16 can be passed between the rollers 30 and 32. Movable bearing plate 44
is rotated around a pin 44A to move the second roller 32 from the conveyance position so that the conveyance path for the booklet 28 and photosensitive material 16 can be opened in the event of a jam or maintenance, as shown in FIG.

Each of the first roller 30 and the second roller 32 has a first sprocket 46 as a first toothed wheel and a second sprocket 48 as a second toothed wheel at the roller end.
are fixed coaxially.

Around the first sprocket 46, on the side opposite to the second sprocket 48 (lower side of the first sprocket 46 in FIG. A first chain 54 is arranged in an annular manner.

The first chain 54 extends between the driving sprockets 50 and 52 along the lower side of the first sprocket 46 in FIG. 1, and the teeth of each of the first sprockets 46 are engaged with the outside thereof. That is, each first roller 30 is disposed between drive sprockets 50 and 52 that support the first chain 54, and the teeth of each first sprocket 46 are engaged with the first chain 54 between the drive sprockets 50 and 52. are combined.

The drive sprocket 50 is rotatably supported by the fixed bearing plate 42 via a rotating shaft 51. On the other hand, the drive sprocket 52 is coaxially fixed to a drive shaft 56A of a motor 56, which is a drive means, and the tenth roller 30 is connected to the drive sprocket 52 via the first sprocket 46, the first chain 54, and the drive sprocket 50.52. It is rotated by the driving force of a motor 56. Motor 56 is attached to fixed bearing plate 42 .

A tension sprocket 58,60 is arranged inside this first chain 54. Tension sprockets 58 , 60 are disposed oppositely between the first rollers 30 and engaged with the first chain 54 . The tension sprockets 58 and 60 are supported by the fixed bearing plate 42 by biasing means (not shown), and are engaged with the first chain 54 by the biasing force of the biasing means. It can be moved inside the chain 54 (lower side in FIG. 1). As a result, the first chain 54 is moved to the first chain by movement of the tension sprocket 58,60.
The side that engages with the sprocket 46 is deflected, and this deflection allows the first roller 30 to be moved toward and away from the second roller 32 while maintaining the engaged state with the first sprocket 46. .

On the other hand, around the second sprocket 48, a booklet 28,
Second sprocket 48 when opening the conveyance path of the photosensitive material 16
A second chain 66 as a second circulating band is arranged in an annular manner by being wrapped around the drive sprocket 62, 64 on the opposite side to the moving side (lower side of the second sprocket 48 in FIG. 1). has been done.

The second chain 66 extends between the driving sprockets 62 and 64 along the lower side of the second sprocket 48 in FIG. 1, and the teeth of each second sprocket 48 are engaged with the outside thereof. That is, each of the second rollers 32 is disposed between the drive sprockets 62 and 64 that support the second chain 66, and the teeth of each of the second sprockets 48 are engaged with the second chain 66 between the drive sprockets 62 and 64. are combined.

Both drive sprockets 62 and 64 have rotating shafts 68 and 70.
It is rotatably supported by a fixed bearing plate 42 via.

One rotating shaft 70 is disposed substantially parallel to the drive shaft 56A of the motor 56, and a gear 72 constituting a part of interlocking means is fixed coaxially to the intermediate portion thereof. The gear 72 meshes with a gear 74 constituting another part of the interlocking means coaxially fixed to the drive shaft 56A of the motor 56, and the drive force of the motor 56 drives the second chain 66 through the drive sprockets 62, 64. The second roller 32 can be rotated via the second sprocket 48 by rotating the second sprocket 48 .

Note that a 20th roller 32 is provided inside the second chain 66.
Tension sprocket 80.82 to oppose between
is installed. Tension Subrocket 80.8
2 is engaged with the second chain 66 and acts to prevent the second chain 66 from slacking between the drive sprockets 62, 64.

Next, the operation of this embodiment will be explained.

The photosensitive material 16 pulled out from the magazine 14 is cut into a predetermined length by a cutter 18, exposed to an image in an exposure section 20, then coated with water in a water application section 22, and then sent to a thermal development transfer section 24. The booklet 28 is then brought into close contact with the booklet 28 in the open state at the heat development transfer section 24 .

In the thermal development transfer section 24, the booklet 28 in the open state and the photosensitive material 16 are held and conveyed in close contact with each other through the first and second rollers 30, 32 which are heated and rotated by a heater (not shown) and heated. , the image recorded on the photosensitive material 16 is thermally developed and thermally transferred to a booklet 28.

Here, the first roller 30 is driven by a driving sprocket 50.5.
2. The second roller 32 is rotated by the driving force of the motor 56 via the first chain 54 and the first sprocket 46.
is gear 72.74, drive sprocket 62.64, second
The photosensitive material 16 is rotated by the driving force of the motor 56 via the chain 66 and the second sprocket 48, thereby sandwiching and conveying the booklet 28 and the photosensitive material 16 in close contact between the first and twentieth rollers 30, 32.

During this conveyance, the tension sprockets 58 and 60 are set so that the first sprocket 4 of the first chain 54 is
6 to the first sprocket 46.
The tenth roller 30 is moved toward and away from the second roller 32 while the chain 54 of the first and second rollers 30 .
The booklet 28 and the photosensitive material 16 are passed between 32 and 32. Therefore, the booklet 28 and the photosensitive material 16 are transferred to the first and second rollers 3.
When passing between 0 and 32, the first sprocket 46 may come off the first chain 54 and the first roller 30 may stop rotating, or the second sprocket 48 may
The 20th roller 32 does not become unrotated due to coming off the chain 66 of the booklet 28, which is relatively thick.
, even the photosensitive material 16 can be transported smoothly.

Further, the second roller 32 moves the movable bearing plate 44 to the bin 44A.
The booklet 28 and the photosensitive material 1 are moved from the transport position by rotating the
6 transport paths can be opened (see Figure 3).

At this time of opening, the second roller 32 moves and the second roller 32 moves.
When the second sprocket 48 is disengaged from the second chain 66 and the second roller 32 is subsequently returned to the position where the booklet 28 and the photosensitive material 16 are transported, the second sprocket 48 needs to be engaged with the second chain 66. However, the engagement of the sprocket with the chain is easier than the engagement of gears with each other, and the second roller 32 can be easily returned to the position where the booklet 28 and photosensitive material 16 are conveyed. Workability during maintenance is improved.

The photosensitive material 16 heat-developed in the heat development transfer section 24 is a booklet 2.
The waste photosensitive material storage box 36 is sent to the peeling section 34 while being in close contact with the booklet 8, and is separated from the booklet 28 at the peeling section 34.
sent to. On the other hand, the booklet 28 separated from the photosensitive material 16 at the peeling section 34 is dried at a drying section 38 and then sent to a take-out tray 40.

In this embodiment, a tension sprocket 58.60 is provided inside the first chain 54, and the setting of the tension sprocket 58.60 bends the side of the first chain 54 that engages with the first sprocket 46. However, one driving sprocket 50 is provided so as to be able to move toward and away from the other driving sprocket 52, and the driving sprocket 50 is moved toward and away from the driving sprocket 52 to connect with the first sprocket 46 of the first chain 54. The engaging side may be bent.

Further, the first chain 54 may have any structure as long as it can bend and move the first roller 30 toward and away from the second roller 32 while maintaining the engaged state with the first sprocket 46. A configuration in which the sprocket 46 engages may also be used.

Further, the second chain 66 may have any structure as long as it can move the second roller 32 to open the conveyance path for the photosensitive material 16 and the booklet 28, and the second chain 66 may have a structure in which the second sprocket 48 engages inside. Good too.

Further, in this embodiment, a sprocket and a chain are used in combination, but any configuration may be used in combination with a toothed wheel and a circulation belt that engages with the toothed wheel. For example, a toothed pulley and a toothed belt may be used in combination. may be used in combination.

〔Effect of the invention〕

As explained above, in the present invention, the first roller is provided so as to be able to approach and separate from the second roller, and by rotating both the first and second rollers, the object to be conveyed is passed between the first and 20th rollers. A conveying device that opens a conveyance path for the conveyed object by nipping and conveying the conveyed object and moving the second roller from the conveying position of the conveyed object, the first toothed roller coaxially fixed to the tenth roller. a second toothed wheel coaxially fixed to the second roller; a first circulation band-shaped body that engages with the wheel in a concave-convex manner and bends to cause the tenth roller to approach and separate from the second roller while maintaining the engaged state with the first toothed wheel; The second toothed wheel extends along the lower side of the second toothed wheel, engages with the second toothed wheel in a concave and convex manner at the conveyed object conveying position of the second roller, and from this engaged state, the second toothed wheel 20th tooth detachment
A second circulation band-like body that allows the roller to be moved to the conveyance path open position of the transported object, an interlocking means that interlocks the second circulation band-like body and the first circulation band-like body, and Since the single driving means can rotate both the pair of first and second rollers and rotate one of the pair of rollers, The second roller can be moved from the conveyance position of the object to open the conveyance path of the object, and after opening the conveyance path of the object, one of the second rollers can be moved to the conveyance position of the object. It has an excellent effect of being able to be returned and smoothly conveying even relatively thick objects.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the conveying device according to the present invention, FIG. 1 is a schematic side view showing the overall structure, and FIG.
FIG. 3 is a schematic side view showing the operation when the transport path is opened, corresponding to FIG. 1, and FIG. 4 is an image recording to which the embodiment of the present invention is applied. FIG. 2 is a schematic cross-sectional view showing the overall structure of the device. 16... Photosensitive material, 28... Booklet, 30... First roller, 32... Second roller, 46... First sprocket, 48... Second sprocket, 54 ...First chain, 56...Motor, 66...Second chain, 72.74...Gear.

Claims (2)

[Claims] (1) A first roller is provided so as to be able to approach and separate from a second roller, and both the first and second rollers are rotated to
A conveying device that pinches and conveys a conveyed object between two rollers, and moves a second roller from a conveying position of the conveyed object to open a conveyance path for the conveyed object, the conveying device coaxially connected to the first roller. a first toothed wheel fixedly attached to the second toothed wheel; a second toothed wheel fixed coaxially to the second roller; and a second toothed wheel supported in an annular shape and a portion extending along the lower side of the first toothed wheel. A first roller that is provided and engages the first toothed wheel in a concave and convex manner and is bent to cause the first roller to approach and separate from the second roller while maintaining the engaged state with the first toothed wheel.
a circulating band-like body supported in an annular shape, a part of which extends along the lower side of the second toothed wheel, and engages with the second toothed wheel in a convex-concave manner at the conveyed object conveying position of the second roller. a second circulation belt-shaped body that allows the teeth of the second toothed wheel to disengage from the engaged state and move the second roller to a conveyance path open position for the conveyed object;
A conveyor comprising: an interlocking means for interlocking the circulating strip and the first circulating strip; and a driving means for rotationally driving both the first circulating strip and the second circulating strip through the interlocking means. Device. (2) A plurality of pairs of the first and second rollers are provided, each of the first rollers is disposed between the positions where the first circulation strip is supported, and each of the second rollers is arranged between the positions where the first circulation strip is supported. The conveying device according to claim 1, wherein the conveying device is arranged between the positions where the circulation strip is supported.