JPH0617013B2 - Kneading material kneading device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a kneading material kneading device, and more specifically to reducing the temperature of a kneading material discharged from a kneading roll and increasing the viscosity. The present invention relates to a kneading device for kneading materials, which is capable of efficiently kneading in a short time and sending it to the next step.

[Prior art]

Conventionally, to keep the physical properties of a kneading material such as a rubber material constant, peel off the kneading material wound around the kneading roll surface and return it to the kneading roll in a rolled state. And a tandem-type kneading machine in which a plurality of kneading rolls are arranged in series and the kneading work is repeated while sequentially feeding the kneading material.

By the way, in the former case, the worker cuts off the kneading material attached to the kneading roll surface with a knife or the like, and then rolls off the kneading material which has been peeled off and sends it to the kneading roll again. Since it is carried out, there is a problem that the workability is extremely poor and there is a danger that the kneading material cutting operation requires a lot of time and labor and requires skill.

The latter tandem system has the following problems.

(a) When the kneading material is insufficiently kneaded, the sulfur is poorly dispersed, so it is necessary to add more kneading rolls, but in this case the increase in the number of rolls increases cost and maintenance is difficult. Also, it takes a lot of time and effort.

(b) Addition of the kneading rolls to the existing line requires the number of days for the kneading machine to stop, and the kneading rolls cannot be added due to the installation space problem, and the compounding is limited.

(c) When conveying from the kneading roll to the sheet take-up roll, a distance is required due to the angle condition of the conveyer conveyor.

(d) It is necessary to raise the installation height of the kneading rolls.

(e) The entire train becomes long, and productivity is reduced due to extension of processing time such as temporary stop measures.

Further, in the case of the conventional kneading method as described above, the kneading step before the introduction of the chemicals, mainly the kneading machine (non-pro mixer) for the kneading material, and the kneading in which the chemicals are added to perform the kneading There is a problem that it requires a large space such as an intermediate stock space and equipment costs because it requires two processes, a chemical kneading process centered on a machine, and it requires a large number of personnel to save manpower. However, there is a problem that the productivity cannot be improved due to insufficient kneading of the kneaded material.

[Object of the Invention]

The present invention was devised by focusing on such conventional problems, and the object thereof is to omit the conventional chemical kneading step and efficiently carry out the kneading in a short time. The quality and productivity can be improved, the distance between the kneading roll and the sheet take-up roll is not unnecessarily lengthened, the entire train can be shortened, and the equipment cost is reduced and unattended by automation. It is intended to provide a kneading material kneading device which can be made into a material.

[Structure of Invention]

In order to achieve the above-mentioned object, the present invention installs a discharge conveyor at the lower part of a kneading roll for receiving the discharged kneading material and discharging it to the side, and kneading the kneading material on the discharge end side of the discharge conveyor. An automatic kneading device for returning to the roll and kneading repeatedly is installed, and the automatic kneading device receives the kneading material from the discharge conveyor and selectively feeds it to the next step and the returning conveyor. And a material width aligning device provided at the discharge end of the return conveyor, the material width aligning device comprising:
The opposing frames are provided with pressing plates capable of advancing and retracting to move the kneaded material to the central portion in the width direction so as to oppose each other, and the drive shaft of the return conveyor is provided with cooling means for circulating cooling water, The gist of the present invention is to provide a cooling means for cooling the kneaded material by blowing cold air to the lower surface side of the return conveyor and the upper surface side of the turn conveyor in the space between the conveyor and the turn conveyor.

Example of Invention

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic configuration diagram of the entire kneading apparatus embodying the present invention, and FIG. 2 is a partial plan view of FIG. 1, showing the overall configuration of the kneading apparatus on a first floor 1 with a kneading roll 2a. ，
A kneading machine 3 including 2b is installed, and a kneading machine 5 (mixer) is installed on the kneading machine 3 and the second floor 4 above the charging section.

Further, below the kneading rolls 2a and 2b, a discharge conveyor 7 that transfers the kneading material W to the loading conveyor 6 (transfer means) side is installed.

On the side of the kneading device 3, an automatic kneading device 10 for repeatedly kneading the kneading material W, and this automatic kneading device 1
The kneading material W is weighed on the unloading side of 0, and is moved up and down and is movable to the chemical dispersion kneading roll 50, and the weight of the kneading material W is set on the chemical dispersion kneading roll 50. On the other hand, the chemical kneading supply device 70 for supplying the material W1 in which the chemicals are kneaded at a constant ratio, and the payout conveyor 8 installed at the lower portion of the chemical dispersion kneading roll 50.
0, a sheet take-out roll 90 arranged on the side thereof,
Sheet material Wa discharged from the sheet delivery roll 90
Is carried out to the next process through the cooling and drying means.

Next, each configuration will be specifically described.

The automatic kneading device 10 for kneading the kneaded material W by the kneading device 3 is composed of a wire mesh belt conveyor for receiving the kneaded material W carried out from the discharge conveyor 7 as shown in FIGS. 3 to 5. Turn conveyor 1
2, a return conveyor 13 that is connectable to the turn conveyor 12 and is composed of a wire mesh belt conveyor that re-injects the kneaded material W into the kneading device 3, and a material provided at the carry-out end of the return conveyor 13. The kneading material W is provided with cooling means 16 and 17 between the driving roller 15 of the return conveyor 13 and the return conveyor 13 and the turn conveyor 12.

The wire-mesh-shaped turn conveyor 12 includes a tail drum 18a provided on the discharge conveyor 7 side, a fulcrum shaft drum 18b and a guide drum 18c attached to respective tip portions of swing arms 19 formed in a substantially triangular shape. The tape cutting drum 18d, the driving drum 18e, and the step pulley 18f are wound around, and the driving drum 18e is
It is provided on a drive shaft 23 that is rotationally driven by a drive motor 20 via sprockets 21 a and 21 b and a chain 22.

The swing arm 19 is provided inside the turn conveyor 13 and is swingably supported by a fulcrum shaft 24 of a fulcrum shaft drum 18b.

One end of an arm 25 is fixed to the fulcrum shaft 24, and the other end of the arm 25 is rotatably connected to a rod 28 of a cylinder 27 fixed to a support frame 26.

Wheels 29 are provided at both left and right ends of the support frame 26, and are mounted so as to be movable on rails 30 laid on the first floor 1. This allows the drums and belts to be moved during maintenance.

When the rod 28 of the cylinder 27 is extended,
When the chain line state of (a) is reached, the fulcrum shaft 24 is passed through the arm 25.
Since the swing arm 19 pivots clockwise about the center of the table and the guide drum 18c and the tape cutting drum 18d move downward, respectively, the turn conveyor 12 moves to the third position.
It will be in the state indicated by the alternate long and short dash line in FIG.

When the rod 28 of the cylinder 27 contracts, the swing arm 19 pivots upward as shown in FIG. 3, and the turn conveyor 12 between the fulcrum shaft drum 18b and the guide drum 18c drives the return conveyor 13. The kneaded material W being conveyed can be supplied to the return conveyor 13 side in a state of enclosing the roller 15.

Next, the wire mesh return conveyor 13 is connected to the frame 3
0 is driven around the drive roller 15, a plurality of carrier rollers 31, and a tail pulley 32. The drive shaft 33 of the drive roller 15 is mounted on the support frame 26 by a drive motor 34 and a sprocket 35a, 35b,
It is adapted to be rotationally driven via a chain 36.

Further, the material width shifting device 14 provided at the carry-out end portion of the return conveyor 13 is provided with cylinders 37a and 37b facing each other on the frames 30 facing each other, and the cylinders 37a and 37b include the return conveyors. A kneading material W is not biased on 13 and a pressing plate 38 for moving the kneading material W in the width direction is provided in order to make the physical properties uniform.

Further, a pinch roller 39 for pinching the kneaded material W and supplying the kneaded material W onto the kneading rolls 2a and 2b is disposed below the material width aligning device 14.

Further, in the cooling means 16 for the root kneading material W, the drive shaft 33 to which the drive roller 15 is attached is hollow, and the drive roller 15 is constantly cooled by circulating cooling water in the hollow portion. It is a thing.

Also, another cooling means 17 is used for the return conveyor 13
Is installed in the space between the drive roller 15 of the turn conveyor 12 and the drive drum 18e of the turn conveyor 12, and the cooling means 17 blows cooling air onto the upper surface of the turn conveyor 12 and the lower surface of the return conveyor 13 to constantly mix the kneaded material W. It is what makes it cool.

A device 40 for cutting the kneaded material W is provided between the discharge conveyor 7 and the tail drum 18a of the turn conveyor 12.
Is installed.

As shown in FIG. 3, in the cutting device 40, a guide frame 41 is erected on the frame 30, and the guide frame 41 is provided with a pressing plate having a pressing plate 42 for pressing and fixing the kneaded material W. 43 and a cutter 44 fixed to the pressing plate 42.

Next, the operation of kneading the kneaded material W by the kneading device 3 will be described.

First, when the kneaded material W is placed on the discharge conveyor 7 through the kneading rolls 2a and 2b of the kneading device 3, the placed kneaded material W is detected by the detecting means LS1 and LS2.
(Photoelectric tube) detects and drives the drive motors 20 and 34 of the discharge conveyor 7, the turn conveyor 12, and the return conveyor 13, respectively, to drive the conveyors in a certain direction, and mixes them with the kneading rolls 2a and 2b of the kneading device 3. The kneading material W is introduced.

Then, the kneading work is repeatedly performed for a time (several minutes) set in advance by a timer (not shown), and at the same time, the pinch roller 39 is also operated for a few minutes set in the timer to perform the kneading work. The set time of the timer is set according to the physical properties of the material.

During this kneading operation, as shown by the solid line in FIG. 3 (a), the turn conveyor 12 is in a state of pushing in the return conveyor 13, and the kneaded material W is between the return conveyor 13 and the turn conveyor 12. And is supplied to the return conveyor 13 side.

In this way, the discharging conveyor 7 is stopped when the kneading work is completed for a certain period of time, and at the same time, the pressing cylinder 43 is stopped.
Is operated to hold down the kneaded material W, and the cutter 44 is operated to cut the kneaded material W.

During this period, the turn conveyor 12 and the return conveyor 13 remain in the activated state.

Then, after several minutes, the drive motor 34 of the return conveyor 13 is stopped and the discharge conveyor 7 is operated. In addition, the cylinder 27 of the turn conveyor 12 is operated to swing the swing arm 19 clockwise, and the swing arm 19 is rotated as shown in FIG.
The direction of the turn conveyor 12 is changed as shown by the alternate long and short dash line. Then, the cut kneaded material W is transferred and discharged to the transfer means 60 side.

Next, the transfer means 60, the chemical dispersion kneading roll 50, and the chemical kneading supply device 70 will be described with reference to FIGS. 6 and 7.

The transfer means 60 provided on one side of the chemical dispersion kneading roll 50 includes a conveyor frame 62 having a weight detector (not shown) at a constant inclination angle on a rail 61 laid on the first floor 1. Is movably mounted, and a boat-shaped bucket conveyor 63 is provided on both sides of the conveyor frame 62.
A guide rail 64 for guiding the is provided.

Rollers 65 that roll on the guide rails 64 are attached to both side walls of the bucket conveyor 63 via guide shafts (not shown), and belts 67 are rotatably driven by a drive motor 66 on the guide shafts. Is locked,
It is configured to guide the bucket conveyor 63 to the input port of the chute 68.

In addition, the chemical dispersion and kneading roll 50 includes the rail 61.
A plurality of them are installed at a predetermined interval along the longitudinal direction of.

Next, the chemical kneading supply device 70 provided on the other side of the chemical dispersion kneading roll 50 mixes the chemical (vulcanizing agent such as sulfur) with the rubber material in advance on the rail 72 laid on the frame 71. Kneaded kneaded material W1 (masterbatch W
Weighing and supply conveyor 7 for measuring and supplying 1)
3 is movably installed, and a feed conveyor 74 for measuring and supplying the kneaded material W1 is arranged above the measuring and supplying conveyor 73. The feed conveyor 74 includes two belt conveyors 75a, 7a.
The kneaded material W1 is sandwiched between 5b and is carried out to the side of the metering and supply conveyor 73.

In addition, 76 is a drive motor for the feed conveyor 74,
Reference numeral 7 indicates a pallet of the masterbatch W1.

Below the chemical dispersion kneading roll 50, a constant weight of the kneading material W from the transfer means 60 and the kneading material W are provided.
A kneading means 51 is provided to repeat kneading with the kneading material W1 charged at a constant ratio with respect to 1.

The kneading means 51 moves up and down between the payout conveyor 80 and the upper part of the chemical dispersion / kneading roll 50 at one side of the payout conveyor 80 arranged at the bottom of each chemical dispersion / kneading roll 50. It is composed of a conveyor that can be operated and moved to the left and right.

Therefore, the kneading material received from the payout conveyor 80 is transferred to the chemical dispersion kneading roll 50 by the conveyor of the kneading-back means 51, and the material is charged to perform the kneading again. Such a kneading operation is performed for several minutes, and then the payout conveyor 80 is moved to the vicinity of the charging conveyor 91 provided on the sheet take-out roll 90 to transfer the kneaded material.

The charging conveyor 91 is disposed along the plurality of chemical dispersion / kneading rolls 50, and the discharge end of the charge conveyor 91 is provided with a sheet delivery roll 90 via a hopper 92.
Is installed.

The transfer means 60 moves along the rails 61 to the kneading rolls 50 for dispersing chemicals to introduce a constant weight of the kneading material W in which the chemicals are not kneaded, and the chemical kneading material supplying device 70. The metering and supply conveyor 73 is also for moving the master batch W1 of a predetermined weight while moving along the rail 72.

Sheet material Wa discharged from the sheet delivery roll 90
Is carried to the next step via the carrier device 100 including the transfer conveyor 110, the cooling means 120, the drying means 130 and the like.

The cooling means 120 sprays cooling water onto the sheet-shaped material Wa moving on the conveyor 121 to cool it.
22 is a spray nozzle and 123 is a water tank.

Further, the drying means 130 drains the cooling water in a state where the sheet material Wa is wound around the endless conveyor belt 131 to dry it, and further cuts it to a predetermined length by a cutting device at the carry-out end portion, Transporting means 1 for the next process
40.

FIG. 8 shows a flow chart of the kneading method of the kneading materials W and W1 of the present invention, and the whole kneading method is as follows.

The kneaded material W extruded from the kneading machine 5 is received by a discharge conveyor 7 disposed below the kneading rolls 2a and 2b, and the kneaded material W conveyed by the carry-out conveyor 7 is received.
The temperature and viscosity of the material W are reduced by repeatedly kneading the material with the automatic kneading device 10.

Next, after kneading the material W for a certain period of time, the material W is transferred to the transfer means 60 disposed on the side of the automatic kneading device 10 to disperse the chemicals while measuring the kneaded material W. It is put into a kneading roll 50.

Then, the material W is obtained by kneading the chemical into the chemical-dispersing kneading roll 50 at a constant ratio with respect to the weight of the kneaded material W.
1 is supplied, and the kneading material W and the material W1 in which a chemical is kneaded are repeatedly kneaded.

The kneaded materials W and W1 discharged from the chemical-dispersion kneading roll 50 are fed back to the sheet feeding roll 90 through the payout conveyor 80 after being kneaded to a certain degree.

Sheet material Wa discharged from the sheet delivery roll 90
Is carried out to the next step through the cooling means 120 and the drying means 130.

〔The invention's effect〕

This invention is provided with a discharge conveyor for receiving the kneaded material discharged to the lower part of the kneading roll as described above and discharging it to the side, and the kneaded material is supplied to the kneading roll on the discharge end side of the discharge conveyor. An automatic kneading device for returning and repeatedly kneading is installed, the automatic kneading device receives a kneading material from the discharge conveyor, and a swingable turn conveyor for selectively supplying the kneaded material to the next step and the returning conveyor, A material width aligning device provided at the discharge end of the return conveyor, wherein the material width aligning device moves the kneaded material to the central portion in the width direction in opposition to the opposing frames. And a cooling means for circulating cooling water in the drive shaft of the return conveyor, and a return plate in the space between the return conveyor and the turn conveyor. Since it provided with cooling means for cooling the kneading material by blowing cold air on the upper side of the lower surface side and the turn conveyor of the conveyor, in which excellent effects as follows.

(a). The kneading material extruded from the kneading machine is received by the discharge conveyor arranged at the lower part of the kneading roll, and the kneading material conveyed by this discharge conveyor is repeatedly kneaded by the automatic kneading device to lower the temperature of the material. In order to reduce the viscosity and kneading the materials for a certain period of time, the kneading material is kneaded by transferring it to a transfer means arranged on the side of the automatic kneading device. Can be efficiently performed in a short time, and there is an effect that quality and productivity can be improved.

(b). By omitting the conventional chemical kneading step, the distance between the kneading roll and the sheet take-up roll can be prevented from becoming unnecessarily long and the entire train can be shortened, so that space and effective use can be achieved.

(c). Since the equipment is not upsized, the equipment cost can be reduced, and because the kneading work can be automated and unmanned, human rights costs can be saved.

(d). By disposing the cooling means at two locations, it is possible to efficiently reduce the temperature and viscosity of the kneaded material, improve the quality, and efficiently perform the kneading operation of the kneaded material. You can

(e). By the material width aligning device provided at the discharge end of the return conveyor, the kneaded material does not become uneven on the return conveyor, and the physical properties of shiigami can be made uniform and the quality can be improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an entire apparatus embodying the present invention,
2 is a plan view taken along the line II-II of FIG. 1, FIG. 3 is a front view of the automatic kneading device, FIG. 3 (a) is an operation explanatory view of the turn conveyor, and FIG. 4 is of FIG. FIG. 5 is a plan view, FIG. 5 is a left side view of FIG. 3, and FIGS. 6 and 7 are plan views and front views of a transfer means, a chemical dispersion kneading roll, and a chemical kneading and feeding device, and FIG. FIG. 4 is an explanatory diagram showing a flowchart of a kneading method. 2a, 2b ... kneading rolls, 3 ... kneading device, 5 ...
Kneader, 7 ... discharge conveyor, 10 ... automatic repeater, 12 ... turn conveyor, 13 ... return conveyor, 16, 17 ... cooling means, 30 ... frame, 3
3 ... drive shaft, 38 ... pressing plate, W ... kneading material.

Claims (1)

[Claims] 1. A discharge conveyor is provided below the kneading roll for discharging the kneaded material discharged to the side, and the kneading material is returned to the kneading roll on the discharge end side of the discharge conveyor to repeat. An automatic kneading device for kneading is installed, and the automatic kneading device receives a kneading material from the discharge conveyor and selectively supplies the kneaded material to the next step and a returning conveyor, and the returning conveyor. And a material narrowing device provided at the discharge end portion of the
Each of them is provided with a pressing plate capable of advancing and retreating to move the kneaded material to the central portion in the width direction facing each other, and a cooling means for circulating cooling water is provided in the drive shaft portion of the return conveyor, and a return conveyor and a turn conveyor are provided. A kneading material kneading device comprising cooling means for cooling the kneading material by blowing cold air to the lower surface side of the return conveyor and the upper surface side of the turn conveyor in the space between them.