JPS5838143B2 - Sho seaweed dehydration equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for continuously and effectively dewatering a large amount of water contained in seaweed formed by a paper machine as a pre-drying process in a seaweed manufacturing process.

As conventional seaweed dehydrating devices, centrifugal dehydrators, endless sponge belt dehydrators, press dehydrators, and the like are known.

However, in the case of the centrifugal type, there are problems in that moving in and out of the seaweed cage is labor intensive and inefficient, and in the case of the endless sponge belt type, even if a squeezing roller is used, the squeezed water is It has disadvantages such as poor dewatering efficiency because it is transmitted horizontally and there is no edge cutting, and because it is subjected to tensile force in addition to compression, it wears out quickly and has a short lifespan.Furthermore, in the case of a press type, the conveyance is stopped during compression. Although the dehydration rate is good, it is not quick enough.
Therefore, in order to correspond to the operating speed of the paper machine, a plurality of machines (4 to 6 machines) must be installed in series, which has the drawback of increasing equipment costs.

The present invention aims to eliminate the above-mentioned conventional drawbacks and to provide a seaweed dewatering device that can continuously and efficiently dehydrate seaweed fed from a paper machine. be.

Embodiments of the present invention will be specifically described below based on the drawings.

In the figure, 1 is a paper machine that is attached to an endless chain and moves in an annular manner on a plane.
A paper frame located at the unloading station of the nori container A is shown, and the dehydrator is set to correspond to this paper frame 1.

That is, in this embodiment, a roller conveyor 4 as a screen carrying-out device consisting of an appropriate number of wooden rollers 3 is provided on one side of the machine frame 2 so as to correspond to the papermaking frame 1, and the roller conveyor 4 serves as a carrying-out device. On the side, there is a cage A with seaweed sent from the roller conveyor 4 to a pair of upper and lower endless chains 5 and 6.
Porous water-absorbing elastic bodies 7 and 8 (hereinafter simply referred to as elastic bodies) for dewatering are attached at regular intervals proportional to the arrangement interval of the paper frames of the paper machine. A dewatering conveyor 9 is provided, and an appropriate number (three in this example) of water trays 83 are attached to the machine frame 2 below the dehydrating conveyor 9.

The above-mentioned endless chain 5 is hung on chain wheels disposed at the front, rear, upper and lower sides of the conveyor frame 17, and the upper elastic body 7 attached to the chain wheel is made of a foam such as polyvinyl formal and is approximately the same as the cage A. The support plate 10 is formed into a plate shape with the same size, and is attached to one side of a support plate 10 having a large number of drainage holes, and the surface is covered with a net 11.

The support plate 10 has leaf springs 12 with locking recesses at four locations on its back surface, and the locking recesses 1 of the leaf springs 12
2a is supported by the endless chain 5
It is removably held by being elastically engaged with the edge of 3.

The holding plate 13 is swingably attached to the endless chain 5 by pins 14 at both front ends thereof in the direction of movement thereof, and by a suitable flexible string 15 such as a chain at the rear end side.
A guide roller 16 is provided at the rear end of the holding plate 13, and the guide roller 16 is provided on the conveyor frame 17. By coming into contact with the guide rail 18, the holding plate 13, that is, the elastic body 7 is guided so that it can smoothly reverse and swing when changing direction.

Furthermore, the upper side of the upper endless chain 5, which is the return side, can hang down freely, and the guide roller 16 is configured to roll on the upper surface of the guide rail 18' arranged in the horizontal direction. This is intended to prevent the endless chain 5 from coming off the chain wheel.

On the other hand, the lower endless chain 6 is hung on chain wheels disposed at the front and rear of the conveyor frame 17, and the lower elastic body 8 disposed on the endless chain 6 is made of polyvinyl formal or the like. A set of urethane rubber foam is divided into six parts as shown in the figure, and is made to have approximately the same size as the upper elastic body 7, and has a large number of drainage holes for the endless chain 6. Plate 8a
However, if necessary, it is also possible to construct it so that it can be attached and detached in the same manner as the upper elastic body 7.

In addition, among the set of receiving plates 8a divided into six, there is a bent piece 8a' bent upward at the front end of the receiving plate 8a arranged at the front end.
By forming this and functioning as a stopper, displacement of the position of the nori-covered cage A fed from the roller conveyor 4 is prevented.

Further, the distance between the upper dewatering elastic body 7 and the lower dewatering elastic body 8 can be adjusted, that is, the clamping force of the nori-covered cage A can be adjusted.

That is, four adjustment screw shafts 19 for height adjustment are attached to the conveyor frame 17 so that their upper and lower parts can rotate about vertical axes, and these four adjustment screw shafts 19 are attached to the lower side of the endless chain 5. That is, a pair of left and right guides 20 are installed via nuts 21 so as to be movable up and down, and are arranged to extend in the front-rear direction so as to contact the carry-in side from above.

The front and rear ends of the left and right guides 20 are connected to each other by tiepers 22, and a roller support plate 23 is horizontally suspended between the front and rear tiepers 22, and a plurality of roller support plates 23 are attached to the roller support plate 23. A pair of presser rollers 24 presses the back surface of the presser plate 13 on the elastic body 7 downward.

Each adjustment screw shaft 19 is linked by a chain 25, so that by rotating a handle 26 provided on one adjustment screw shaft 19, the dewatering pressure of the nori-covered cage A by the presser roller 24 can be increased. can be adjusted.

In addition, on the basket loading side of the dewatering conveyor 9, the tieper 22 is provided with a cam 27 for pressing the upper elastic body 7 into a state substantially parallel to the upper surface of the nori-covered basket A when starting clamping of the basket. There is.

That is, as shown in FIGS. 3 and 4, the tie bar 2
A pair of left and right cams 27 are provided on a cam shaft 28 that is horizontally suspended and rotatably supported in the left-right direction (width direction) of the dewatering conveyor 9. chain wheel shaft 5a
It is set so that the elastic body 7 is rotated once every time the elastic body 7 moves by one pitch, that is, the arrangement interval.

On the other hand, a pair of upper and lower finishing rollers 30 and 31 are installed on the screen delivery side of the dewatering conveyor 9 to press down the leaves on the seaweed surface of the seaweed-covered screen A sent out from the dewatering conveyor 9 and to finish it into a smooth surface. The upper finishing roller 30 is mounted so that its height can be adjusted to adjust the clamping pressure.

The dewatering machine is operated using a speed reducer 32 in the paper machine as a driving source, and the upper and lower elastic bodies 1 and 8 disposed at regular intervals in the dewatering conveyor 9 move from the paper machine to the nori-covered bin A. The timing is set so that it can be conveyed under pressure every time it is sent out.

As shown in the figure, from the output shaft 33 of the reducer 32 to the chain 34
The input shaft 35 of the dehydrator is rotated through the
A transmission shaft 37 extending in the front-rear direction is rotated via a pair of bevel gears 36, and a reduction gear 39 of the dehydrator is driven by this via a chain 38.

From the output shaft 40 of the reducer 39, the chain wheel shaft 6a for the lower endless chain 6 in the dewatering conveyor 9 is rotated via the chain 41, and from this chain wheel shaft 6a via the chain 42, the upper endless chain 6 is rotated. As the intermediate shaft 43 for the chain 5 is rotated, the chain wheel shaft 5b on the upper part of the cage delivery side is also rotated from the intermediate shaft 43 via a gear.

On the other hand, the upper finishing roller 30 is connected to the chain 4 from the intermediate shaft 44 rotated by the chain 41 of the reducer 39.
5, and the lower finishing roller 31 is driven by a chain (not shown) from an intermediate shaft 44 on the rear side in FIG.
The upper finishing roller 30 is rotated in the opposite direction via the upper finishing roller 30.

Although not shown, the roller conveyor 4 is actively rotated using a chain or the like, and in this embodiment, the rotation speed is set to be slightly higher than the rotation speed of the dewatering conveyor 9.

Next, a device for collecting the dehydrated seaweed-covered tank A will be explained.

A roller conveyor 46 consisting of a group of rollers is connected to the exit side of the pair of upper and lower finishing rollers 30, and although not shown, the roller conveyor 46 is actively rotated from the intermediate shaft 44 via a chain transmission device. It looks like this.

A space is created in front of the roller conveyor 46 to accumulate the seaweed-filled cages A, and in the front and rear of this cage accumulation space 47, the seaweed-filled cages A are created.
A pair of loading chains 49 each having two substantially L-shaped receiving rods 48 extending horizontally for receiving the front and rear ends of the loading chains 49 are arranged to move around in the vertical direction. .

An intermediate frame 50 erected on the machine frame 2 above the cage accumulation space 47 receives the seaweed-covered cages A sent out from the roller conveyor 46 and transfers them to the loading chain 49.
A cage relay arm 53 consisting of three swinging arms 52 with a receiving claw 51 at the lower end, which is to be transferred to the receiving rod 48, swings its upper end in the front-rear direction via a swinging shaft 54. This cage relay arm 53 connects the chain 5 from the chain wheel shaft 6a of the dewatering conveyor 9.
a first cam 57 provided on a camshaft 56 rotated via a first cam 57;
Its swing is controlled by

That is, a chain 59 is hung on a chain wheel 58 provided on the swinging support shaft 54 of the screen relay arm 53, and one end of the chain 59 is connected to the machine base 2 via a tension spring 60, and the other end is connected to the machine base 2 via a tension spring 60. has a roller 61 that abuts the first cam 51 and is connected to a cam lever 62 that is swingably supported by the machine frame 2, so that the cage relay arm 53 rotates every rotation of the first cam. It is oscillated back and forth once.

In addition, a pair of front and rear guide plates 63 are provided at the upper part of the cage accumulation space 47.
is swingably installed vertically, and the guide plate 63 is for holding the screen A, which falls away from the screen relay arm 53, in a stable posture.

Note that 64 is a pair of left and right fixed guide plates, and 63a is a stopper that determines the fall position of the screen A on the relay arm 53.

The loading chain 49 is moved around intermittently at a pitch corresponding to the total thickness each time a plurality of (six in this embodiment) seaweed-covered cages A are stacked on the receiving rod 48. The recessive drive mechanism will be explained below.

The drive source of this mechanism is the second cam 6 provided on the camshaft 56.
5, which has a roller 66 that contacts the second cam 65 and is swingably supported by the machine frame 2, is attached to one chain wheel shaft 68 for the loading chain.
It is connected to a relay rod 70 that transmits power to an intermittent feed mechanism section 69 mounted on the cam reper 67, and this connection section is formed on a pin 67a provided on the cam reper 67 and a relay rod 70 that is removable from the pin 67a. It is composed of a hook portion 70a.

In the intermittent feed mechanism section 69, a small diameter ratchet wheel 71 and a large diameter ratchet wheel 72 each having six claw teeth 71a and 72a are arranged in parallel on the chain wheel shaft 68. 71 is a large diameter ratchet wheel 72 fixed to the shaft 68
is attached to the shaft 68 so as to be freely rotatable.

Also, one pawl tooth 72 of the large diameter ratchet wheel 72
a' is made to have a deep cutting depth that reaches the valley of the pawl teeth 71a of the small-diameter ratchet wheel 71, and therefore the feed pawl 73 that reciprocates and oscillates via the relay rod 70.
The small-diameter ratchet wheel 71, that is, the chain wheel shaft 68, is rotated by one pitch (60 degrees) every time the large-diameter ratchet wheel 72 is rotated once.

Further, the pair of loading chains 49 are interlocked via a chain 74.

Note that 49a is a chain guide that guides the movement of the loading chain 49, and 48a is a chain guide that restricts the movement of the accumulation bins A stacked on the receiving rod 48 in the front and back direction when descending, and also controls the lowering of the receiving rod 48. This is a guide board to guide you.

The upper end 48a' of this guide plate 48a, which guides the direction change of the receiving rod 48, extends upward from the outside to the inside with a gently curved surface, and has a vertical guide surface with a small radius curved surface from the inside upper end, as shown in FIG. The left and right ends of the upper end portion 48a' are protruded in the left and right direction (width direction) to constitute a guide for the loading chain 49, and serve as a chain wheel.

Since the upper end 48a' of the guide plate 48a is shaped as described above, when the receiving rod 48 changes direction from the ascending (return) side to the descending (loading) side, the receiving rod 48 is small. It is possible to change the attitude with the movement pitch, that is, to switch from the standby attitude to the loading attitude.

On the other hand, a screen detection plate 15 is disposed at an appropriate portion of the roller conveyor 46 so that its upper end protrudes slightly upward from the upper surface of the roller, and this screen detection plate 75 has its lower end pivoted to the machine frame 2. It is freely supported and tilted forward by the front end of the nori-covered cage A sent out from the finishing roller 30.

The screen detection plate 75 is connected via a link mechanism 77 to a control lever 76 for controlling engagement and disengagement between the relay rod 70 and the cam lever 67, and when the screen A is tilted forward, the control lever 76 76 is tilted downward to release the push-up of the relay rod 70 and engage the hook portion 70a with the pin 67a of the cam leper 67.

Note that an adjustable weight 78 for return is attached to an appropriate location of the link mechanism 77, and this weight γ8
The screen detection plate 75 is always held in an upright position, and the control lever 76 moves the relay rod 70 to the cam lever 67.
It is set to be pushed up and held in a position separated from the

Therefore, the feeding operation by the second cam 65 is not transmitted to the intermittent feeding mechanism section 69 unless the seaweed-covered cage A is sent out onto the roller conveyor 46.

In addition, there is a risk that the seaweed-covered cage A moving on the roller conveyor 46 may slip due to the upward force exerted by the return weight 78 via the cage detection plate 75. A presser roller 79 that can freely rotate is provided at the location.

In addition, a carry-out conveyor 80 for laterally taking out the accumulated bins is disposed at the bottom of the cage accumulation space 4γ, and this carry-out conveyor 80 is connected to a dog (not shown) provided on the loading chain 49 and a machine. A chain 82 is connected to a motor 81 operated by a limit switch LSI mounted on the frame 2.
operated via.

The motor 81 is stopped by a limit switch LS2 provided at the discharge end of the discharge conveyor 80.

This embodiment is constructed as described above, and its operation will be explained below.

Now, when the nori-covered basin A is sent out from the paper frame 1 of the paper machine onto the roller conveyor 4, the nori-covered basin A is supplied between the upper and lower dewatering elastic bodies 7 and 8 on the dewatering conveyor 9, and The water is conveyed under pressure by the elastic bodies 7 and 8 and dehydrated,
When the nori container A moves from the roller conveyor 4 to the dewatering conveyor 9 side, the nori container A is moved from the bending plate 8a as a stopper formed at the front end of the receiving plate 8a of the lower elastic body 8 as described above.
', it is prevented from going too far, and the relative position with respect to the elastic bodies 7 and 8 is maintained in a normal state.

Moreover, when the clamping force of the seaweed-filled cage A is started, the upper elastic body 7, which is swingably attached to the endless chain 5 via the pin 14, moves from the return side to the conveyance side.
As shown in the figure, it is smoothly and stably reversed while being guided by the guide rail 18, and reaches a nearly horizontal state, that is, a state parallel to the top surface of the nori container A, and when it reaches this state, its back surface, that is, the presser The back surface of the plate 13 is pressed by a holding cam 27 and is pressed parallel to the nori-covered cage A, and the lower elastic body 8 clamps the cage A.

Therefore, the entire seaweed on the upper surface of the screen A is subjected to a uniform pressing force at once, so that its thickness becomes uniform and it does not stretch in the direction of travel or break.

The upper and lower elastic bodies 7 and 8 move while maintaining this clamping pressure state, and are then pressed by the presser roller 24, but the presser cam 27 does not press the presser roller 24.
Continue until pressure is taken over by

Therefore, the subsequent nori-covered cage A is conveyed while being dehydrated under the pressure of the press roller 24 set in advance by the adjustment shaft 19, and then sent to the finishing rollers 30 and 31. At this time, the elastic body 7 is removed from the seaweed. The so-called leaf-falling phenomenon tends to occur at the moment of separation, and in this embodiment, the elastic body 7
Since the net 11 is stretched over the surface of the sheet, it is possible to suppress the above-mentioned seaweed leaf formation to some extent, and the generated leaf formation is corrected when passing through the finishing rollers 30 and 31.

When the nori-covered cage A that has been dewatered as described above is sent onto the roller conveyor 46 and its front end reaches the delivery end of the conveyor 46, the cage relay arm 53 is moved by its receiving claw 51 to the front end of the nori-covered cage A. As the first cam 57 rotates, it swings forward.

Therefore, the seaweed-covered cage A is carried above the cage accumulation space 47 while being received by the cage relay arm 53, and at the same time as the rear end is removed from the roller conveyor 46, the stopper 63a
Because it also comes off from the receiving claw 51 of the cage relay arm 53,
The loading chain 4 has fallen while being guided by a pair of front and rear swinging guide plates 63 in a horizontal state and is waiting below.
The front and rear ends are received by receiving rods 48 of 9.

Thereafter, the above operation is repeated and the loading chain 4
The seaweed-covered cages A are stacked one after another on the receiving rod 48 of No. 9.
The loading chain 49 is intermittently moved around by an amount corresponding to six sheets of seaweed-covered cage A every time six sheets of seaweed-covered cage A are stacked, and descends the stacking cage.

That is, since the intermittent feeding mechanism section 69 of the loading chain 49 is configured to intermittently feed the chain wheel shaft 68 only once in six intermittent feedings by the feeding pawl 73 as described above, the loading chain 49 is the second driving source
The accumulation cage is lowered every six rotations of the cam 65.

By the way, if for some reason on the paper machine side, one or more of the nori-covered bins A, which should normally be carried out continuously at a constant pitch to the dewatering machine, is stopped, the loading chain The intermittent feeding mechanism section 69 of 49 suspends its feeding operation.

That is, as mentioned above, the roller conveyor 46 that conveys the seaweed cage A after dewatering is provided with a cage detection plate 75, and the control lever 76, which is always interlocked with this cage detection plate 75, is connected to the relay rod of the intermittent feeding mechanism section 69. Push up 70 and move the rondo and the second
Since the connection with the cam reper 67 operated by the cam 65 is cut off, the cam reper 67 is operated by the second cam 65 unless the seaweed-covered cage A is sent onto the roller conveyor 46.
Even if the movement is activated, the movement is not transmitted to the intermittent feed mechanism section 69.

Therefore, the lowering operation of the loading chain 49 is performed every time substantially six seaweed cages A are stacked as one unit, and a predetermined amount of accumulated cages are stacked in the cage accumulation space 47, and the seaweed cages A are stacked below. The bundle is transferred from the receiving rod 48 to the belt of the conveyor 80, and when it reaches the opposite upper standby position in the next intermittent feed, the IJ mitt LS1 is activated and the motor 81 is activated so that the unloading conveyor 80 collects the accumulation bin. It is carried out from the accumulation space 47.

At this time, a slight space is provided between the top surface of the bamboo bundle being carried out and the bottom surface of the following bamboo basket that has fallen onto the receiving rod stopped at the standby position, and a guide is provided so as not to impede the passage of the receiving rod 48. The plate 63 is held swingably.

As described in detail above, the present invention constructs a dewatering conveyor by disposing porous water-absorbing elastic bodies for dewatering at regular intervals on a pair of upper and lower endless chains that move around, and continuously Since the elastic body itself can be dewatered under pressure while being conveyed to each cage with the seaweed, the water can be drained well and the dewatering performance is improved.
Since it is a continuous operation, a single dewatering machine can handle the high-speed operation of the paper machine, resulting in excellent work efficiency and effective equipment.

In addition, the present invention is configured such that the upper elastic body facing the nori side is pressed in a substantially parallel state against the upper surface of the nori holding cage using a cam when the lower elastic body starts clamping. Since the pressurizing force is applied simultaneously to the entire nori, it prevents problems such as shifting, elongation, or breakage of the nori that occurs in conventional conveyor-type dewatering machines, where the pressurizing force is applied to the nori from the front to the rear. You can get high quality seaweed by doing this.

Furthermore, in the dewatering device of the present invention, the clamping pressure of the nori-covered cage by the upper and lower elastic bodies can be adjusted.
Appropriate dewatering pressure can be easily obtained depending on the type of seaweed, etc.
In addition, since the elastic body 7 can be easily removed from the endless chain 5, this is particularly effective when the elastic body is made of polyvinyl formal, which has excellent dehydration properties but requires frequent cleaning. A pair of upper and lower finishing rollers are provided at the exit of the dryer to hold down the leaves, which is effective in improving the quality of the seaweed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing the whole, FIG. 2 is a perspective view showing upper and lower elastic bodies in the dewatering conveyor, and FIG. 3 is a partially cutaway side view of the dewatering section. Figure 4 is a partially cutaway plan view, Figure 5 is a partially cutaway side view showing a loading device for stacking the cages with seaweed after dehydration, and Figure 6 is a drive unit and a cage detection unit of the loading device. FIG. 1... Paper frame, 2... Machine frame, 4... Roller conveyor, 5, 6... Endless chain, ? , 8... Elastic body for dewatering, 9... Dewatering conveyor, 13... Holding plate, 14... Pin, 18... Guide rail, 19...
- Adjustment screw shaft, 24... Presser roller, 27... Cam for presser, 30, 31... Finishing roller.

Claims (1)

[Scope of Claims] 1. A pair of upper and lower endless chains are disposed facing each other so as to move in continuous circles on the exit side of a cage unloading device connected to a nori paper machine, and each of these endless chains is equipped with a dewatering device. A dewatering conveyor is formed by arranging porous water-absorbing elastic bodies at regular intervals, and transports the cages with seaweed sent in from the above-mentioned cage carrying device while being clamped between the upper and lower opposing porous water-absorbing elastic bodies. In addition, the upper porous water-absorbing elastic body is swingably attached to the endless chain at the front part on the advancing side via a rigid flat plate, and the water-absorbing elastic body in the upper part is attached to the endless chain so as to be able to swing. 1. A dewatering apparatus for dried seaweed, characterized in that when pampering is started, the dewatering conveyor is pressed in a state substantially parallel to the upper surface of the screen by a cam provided in the vicinity of the screen entrance. 2. The seaweed dewatering apparatus according to claim 1, wherein the distance between the upper porous water-absorbing elastic body and the lower porous water-absorbing elastic body in the dewatering conveyor can be adjusted. 3. The dried seaweed dewatering apparatus according to claim 1, further comprising a pair of upper and lower finishing rollers for finishing the upper surface of the seaweed at the tray outlet of the dewatering conveyor. 4. The seaweed dewatering device according to claim 1, wherein the porous water-absorbing elastic body in the dewatering conveyor is configured to be attachable to and detachable from an endless chain.