JPH0757325B2 - Automatic feeding / discharging device for batch type horizontal rolling mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to automation of a device for supplying a raw material to a batch type horizontal type rolling mill, and for discharging after crushing.

[Prior Art] In general, ceramic materials such as ceramic materials and tiles are often mixed and crushed with several kinds of materials, and in some cases, dozens of kinds of materials are mixed and pulverized, and a uniform fine powder without contamination is required. Therefore, a batch type horizontal rolling mill (often a ball mill) is used.

The pulverization method is further divided into a dry method and a wet method, and generally, a wet method (a slurry state in which water is added to a raw material) is often used.

FIGS. 6 (a) and 6 (b) exemplify a main part of a typical batch type horizontal rolling mill, in which both ends of a cylindrical main body 1a are rotatably supported by bearings and a speed reducer 101 is interposed therebetween. The motor 102 is rotated by receiving the driving force of the motor 102 to be connected. An inching motor 103 is attached to the speed reducer, and fine adjustment is performed so that the lid (manhole) 12a covering the opening of the mill main body stops at the uppermost position of the main body.

The main body of the mill is equipped with at least one opening (two in the figure) and its lid, from which raw materials are supplied and discharged. Conventionally, at least the following procedure was used for this type of mill. Had to pass. That is, (1) Manually remove the lid that is attached to the body with tightening bolts. Since the weight of the lid is large in a large mill, the chains block and hoist are used to lift the lid.

(2) Manually attach the raw material charging chute to the opening. A raw material carrying conveyor is suspended above the chute.

(3) A predetermined amount of raw material having a desired composition is supplied into the main body through the chute. At the same time, add worn out grinding media (balls, etc.) at the same time.

(4) Remove the chute, manually insert the lid into the opening, and tighten with bolts to secure it.

(5) After the crushing is completed and the mill is stopped, the lid is removed through the same work as in (1) and replaced with the discharge lid. In the case of large size, all procedures such as manual work, sling work, temporary placement are required.

(6) The mill main body to which the discharge lid 13a is attached rotates 180 ° by operating the inching motor, and its position is directed right below.

(7) As shown in FIG. 7, when the discharge lid 13a is used, the air pipe 4a connected to the compressor 104 and the discharge pipe 31a are attached via valves 14a and 15a, and the lid is pierced to penetrate the mill main body. It communicates freely with the inside and outside. As shown in the figure, air is pressed in from one side, and this pressure causes a slurry-like pulverized product.
Pa is discharged into the external slurry tank 3a through the discharge pipe 31a. Since the mill also contains grinding media such as pebble, it is necessary to attach the strainer 105 to the tip of the discharge pipe so that these media do not flow out at the same time.

(8) When the discharge is completed, disengage the discharge cover from the air pipe and the discharge pipe, and turn 180 ° again to direct the cover directly upward.

(9) The discharge lid is removed and temporarily placed, and the raw material charging chute that has been temporarily placed is attached to supply the raw material.

(10) Remove the chute, suspend it from the lid that was temporarily placed, and attach it to the mill body.

Although such a procedure is repeated, it is often the case that two lids are provided symmetrically in the vertical direction to balance the rotation, but this procedure cannot be omitted. Originally, the horizontal type rolling mill is a general mode in which the raw material is continuously supplied from one side and the product is continuously discharged from the other side. In terms of productivity and production cost, it is an ordinary mode to employ a continuous system as a practical level device for mass production. Batch-type horizontal rolling mills are batch-type only for special industries such as ceramic raw materials, but special treatment of crushing and kneading a certain amount of raw materials is essential even if productivity is sacrificed. Because. As a raw material for ceramics, it is not uncommon to treat it in a mill for a long time such as one day and night, and in many cases, special conditions are applied in which water is added wet to knead fine powder into a slurry. . In actual industrial production, even under these conditions, management cannot be achieved unless it is converted to a large amount of intermediate raw material.Therefore, the capacity of the batch type horizontal rolling mill is made huge, and its diameter and axial length are all It is necessary to set up a large mill body approaching 4 m, and to install the batch type horizontal rolling mills in several rows side by side to cover the low productivity and undercapacity of processing because it is a batch type.

Usually, a batch mill that crushes raw materials for ceramics is equipped with more than 10 and several tens of batch-type mills like this. The raw material is charged and the product is discharged while sprinkling the grinding time a little. Due to the crushing time, a great deal of labor was required to supply and discharge the raw material to and from the mill day and night, which was a major issue in terms of work environment and occupational accidents.

Of course, many proposals have already been announced to improve this problem. For example, Japanese Utility Model Laid-Open No. 63-144846 discloses a technique for attaching and detaching a cylinder for charging and discharging raw materials to and from an opening of a main body, a lid. Japanese Unexamined Patent Publication No. Sho 63-197643 relating to the adhesion of the body, and Unexamined Japanese Utility Model Publication No. Sho 60-165125 relating to a swing clamp device which is convenient for engaging and disengaging a lid or the like are found.

However, all of these are limited to the improvement of a single member focusing on the engagement and disengagement of the main body and the lid, and although they are effective in partially saving labor, the above-mentioned excessive labor load of the entire factory is fundamentally I can't help saying that I can't expect to be saved. In addition, as a conventional technique aiming at automation of a batch type horizontal rolling mill, there is also a proposal of Japanese Patent Publication No. 58-3745. In this conventional technology, a feeding hopper located at the upper part of the processing machine for supplying the raw material to the powder processing machine, which horizontally rotates the container to reversely drop the raw material, and a standby below the processing machine. It is formed of a transfer device that holds the container that has received the discharged powder that has been discharged, moves horizontally, changes the grip, and moves vertically to return to the original height of the input hopper. The operation principle of the batch system established by such a circulation system path and the powder processing machine is illustrated in FIG.
It is summarized in (d), and FIG. (A) shows the stage of charging the raw material into the processing machine 1b. The raw material charging port 101 is opened upward and the discharge port 102 is closed. At this point, although not shown in the figure, the container containing the raw material rotates in the input hopper located above the input port 101 to supply the raw material therein toward the input port. The figure (b) shows a state in which the processor is in operation. The axis of the processor main body is kept horizontal, and both the inlet and the outlet are closed. In the figure (c), at the stage of discharging the product after the processing is finished, the mill main body rises diagonally, and the powder that is rising passes through the discharge port 102 and is discharged into the lower container (not shown). In the diagram (d), the axis line is inclined in the opposite direction in order to restore the crushing medium (crushing ball) that is biased at the time of discharge. It is said that by combining this series of operations of the mill body and the movement of containers circulating above and below it, all work can be made continuous and automated to reduce labor and improve efficiency.

However, this type of batch type horizontal rolling mill is unsuitable as a device for adjusting raw materials of ceramics and tiles, which is the object of the present invention. For the supply of raw materials, it is a requirement to invert the container in the input hopper, but for giant ceramics,
Not applicable to batch type horizontal rolling mills for tiles. If a large-capacity container is horizontally moved and inverted, an excessively large drive mechanism is required. If it is attempted to avoid it, the desired amount of raw material cannot be supplied unless the container is repeatedly moved.
Moreover, since the time required during that period is a serious factor that hinders productivity, it is difficult to find room for application to industrial production systems, except at the laboratory level.

Regarding the discharge of powder after treatment, as you can understand if you consider the reason why the horizontal rolling mill, which is originally a continuous type, was intentionally made into a batch type, the powder treated as an intermediate product for ceramics and tiles Generally, the purpose is to knead into a slurry-like high viscosity, and since the fluidity thereof is completely different from that of dry powder, there is no possibility that it will simply flow out from the inside of the mill body only by its own weight when the discharge port is opened. That is, when the mill body is tilted in the posture shown in FIG.
It is inevitable that an excessive amount of time is wasted in order to discharge the highly caking slurry material from the inside, which is an unbearable burden in terms of productivity.

In order to fundamentally solve the problems described above, the present invention provides a comprehensive system that automates the supply and discharge of raw materials for a batch-type horizontal rolling mill that mainly targets intermediate raw materials for ceramics and tiles. To aim.

[Means for Solving the Problems] The automatic feeding / discharging device for a batch type horizontal rolling mill according to the present invention is a middle stage 2F of a structure including three stages of an upper stage 3F, a middle stage 2F and a lower stage 1F.
A plurality of batch type horizontal type rolling mills 1 having at least one opening 11 are arranged in parallel with their axes parallel to each other, and a product storage tank 3 having a discharge pipe 31 having a joint 32 at the tip is installed in the lower stage 1F. ,
The middle stage 2F is provided with an air pipe 4 with a joint 41 openable and closable at the tip, and the upper stage 3F is free to run on a track 7 which is laid on the axis of the batch type horizontal rolling mill 1 so that the work vehicle 5 and the raw material can travel freely. The supply vehicle 6 is arranged in series, and the work vehicle 5 has a lid 12 for inserting a raw material and a lid 13 for discharging a product which are fitted into the opening 11 of the batch type horizontal rolling mill 1.
Each of them is equipped with one or more sets of hydraulic mechanisms for attaching / detaching, gripping, and raising / lowering, and the raw material supply vehicle 6 has an upper hopper 61 for receiving the raw material quantitatively cut out from the conveyor 8 at the top thereof and an opening 11 of a batch type horizontal rolling mill capable of moving up and down. And a conical cylindrical body 63 that closely penetrates into the inside, and the discharge lid 13 has a joint 32 of a discharge pipe 31 and a high-viscosity product finely pulverized in the batch type horizontal rolling mill 1 in the discharge lid 13. For air entry to forcibly discharge air
1 for each array with fittings 16 and 17 that engage and disengage with 42
A trolley 10 which forms a set of crushing mechanisms and which is provided with a vertical track 9 which connects the ends of the crushing mechanisms in each row at right angles to each other and which traverses on the vertical track 9 at the same level as the track 7. The above-mentioned problem was solved by connecting the control means for controlling the time, position and movement of each member between each array and between each array and each array and each array.

[Operation] FIG. 1 is a perspective view of an embodiment of the present invention, FIG.
(B) and (C) are front views illustrating the flow of the entire operation.

Discharge pipe 31 to the lower part 1 _F which comprises a joint 32 to the distal end in the figures
Laid the reservoir 3 fitted with, at least a middle part 2 _F Place the mill body 1 having a one month of the opening 11, gas source (not shown)
The air pipe 4 connected to the pipe is connected. The air tube passes through a valve 41 and ends at a joint 42.

Upper 3 to _F arranging and the raw material supply wheel 6 working vehicle 5 to laying track 7 in the axial direction of the mill in series. Work vehicle 5 is the opening of the mill
The loading lid 12 and the discharging lid 13 fitted inside 11 are provided with a function of separately engaging and disengaging, grasping, and moving up and down.

On the other hand, the raw material supply vehicle 6 is provided with a function of integrally raising and lowering the upper hopper 61, the telescopic cylinder 62, and the conical cylinder 63.

The discharge lid 13 has a joint that can be engaged and disengaged separately from the joint 32 of the discharge pipe and the joint 42 of the air pipe, and is openably and closably connected to each other.

The peculiar effects of the basic configuration described above will be described with reference to FIGS. 2 (a), (b), and (c). The lid for charging the top of the mill body 1 stopped in FIG. 12 is located,
The moment when the work vehicle 5 travels on this and grips the lid is shown. After this, the charging lid and the mill body are disengaged, the lid is lifted upward, and then temporarily placed. Instead, the work vehicle grips the discharge lid 13 and descends to fit it into the mill body opening 11. Engage. Here, disengage the hydraulic part of the work vehicle from the discharge lid and rotate the mill body 180 ° to change the position of the discharge lid to the bottom.
As shown in the figure (b), the discharge lid 13 is connected to the discharge pipe, the air pipe and the respective joints, and the crushed material P in the open mill is stored in the storage tank 3
Discharge into. After discharging, the mill body 1 is rotated 180 ° again and the discharging lid 13 is removed and temporarily placed.
Run directly over the opening of the mill and insert the conical cylinder 63 at the tip into the mill so that the solid raw material C is superposed on the conveyor 8 to the upper hopper 61, and the necessary liquid raw material L is directly conical. Each is supplied to the cylinder 63. This state is the raw material supply step in the mode shown in FIG.

Next, the combination of such a set of three-stage mill and its peripheral equipment is such that the work vehicle 5 travels on the vertical track 9 that crosses the row line at a right angle as shown in FIG. By moving, labor saving and simplification of layout will be further promoted. In this way, the flowchart for operating a comprehensive system that makes full use of multiple column lines vertically and horizontally
This is illustrated in the figure.

In the example shown in FIG. 1, a trolley 10 mounted on a track at the same level as the track 7 of each line of the mill is made to traverse on a vertical vertical track 9 so that the work vehicle can be diverted to any line.

In this figure, the raw material tank 81 equipped with the conveyor 8 is fixed for each line, and the raw material supply vehicle 6 is also provided for each line, but this is merely an example, and various materials may be used. They can be combined and are not limited by the technical scope.

[Embodiment] Explaining an embodiment of the present invention while avoiding duplication of the description up to the preceding paragraph, FIG. 4 is a specific cross-sectional view of the work vehicle 5, in which the rolling of wheels 51 causes the work vehicle to run on the track 7. The hydraulic cylinder 52 and the hydraulic unit 53 are equipped inside, and the joint 54 at the tip of the hydraulic unit has a charging lid 12.
The swing clamp 18 for fixing is configured to be detachable from the joint 19.

The hook 20 projects from the center of the charging lid 12, the hydraulic cylinder 52 of the work vehicle expands and contracts, and the chuck 55 at the tip thereof hooks the hook 20.
The joint 19 and the joint 54 are engaged with each other to operate the hydraulic unit 53 at the same time, and the swing clamp 18 is lifted against the urging force, and at the same time, the swing clamp 18 is horizontally rotated to release the charging lid 12. .

Therefore, since a series of these operations proceed in a timely manner, the charging lid is hung up on the track and then moved horizontally to be hung down for temporary placement at a desired place.

The example in this figure is equipped with a traverser 56 on the upper side to allow movement in the mill axis direction separately from traveling of the work vehicle. Eventually, for this work vehicle, the X axis (running), Y axis (traverser) A self-propelled 5-axis control robot with Z-axis (hydraulic cylinder lift), A-axis (hydraulic cylinder traverse), and B-axis (hydraulic chuck) is a preferred embodiment. The operation is controlled by the two-position control, and the operation including the operation of the swing clamp and the swing clamp can be automatically advanced through the sequencer control panel.

FIG. 5 is a partially enlarged view of FIG. 2 (b), illustrating the engagement relationship of the discharge lid 13 during the discharging operation. The fitting 16 provided on the discharge lid fitted in the opening of the mill body 1 engages with the joint 42 of the air pipe 4, and the joint 17 likewise engages with the joint 32 of the discharge pipe 31, and a valve interposed in the middle. 14 and 15 are opened to guide the pressurized air into the mill body, and the pulverized material P inside is discharged into the storage tank 4.

[Advantages of the Invention] Since the present invention is configured and operates as described above, it realizes automation of excessive and unsafe on-site work, which has been a long-standing concern, and rationalizes the entire process and saves labor, which is economical. You can expect significant benefits. The present invention catches the present situation in which the trend in the industry is based on a large amount of processing in which a plurality of batch type horizontal rolling mills are arranged, and has a rational configuration in which a common supply and discharge mechanism covers a plurality of series of processing mechanisms. Ie 1
One work vehicle is diverted to the batch type horizontal rolling mill device of the adjacent series one after another, and the common control function centrally covers the adjustment between each series and each stage in the series of one unit,
If all positions and movements of each member are time-aligned and integrated, it will have the effect of encouraging epoch-making rationalization to fully automate the production activities of all plants.

Generally, the crushing factory has a bad working environment, and the heavy labor that depends on the physical strength damages the health of the workers and causes a disaster. However, the implementation of the present invention will lead to the systemization with a completely new face.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG.
(B) and (C) are front views in the order of steps, FIG. 3 is a flowchart of the embodiment, FIG. 4 is a partial vertical sectional view of the embodiment, and FIG. 5 is another part of the embodiment. Vertical sectional views, FIGS. 6 (a) and 6 (b) are a plan view and a front view of the prior art, and FIG. 7 is a vertical sectional view showing one step of the prior art, and FIG. 8 (a).
(B) (C) (D) is a schematic vertical cross-sectional view showing the operation of another prior art main part. 1 ... Mill main body, 3 ... Storage tank 4 ... Air pipe, 5 ... Work vehicle 6 ... Raw material supply vehicle, 7 ... Orbit 9 ... Vertical orbit, 12 ... Charging lid 13 ... Discharge Lid 16,17 …… Discharge lid joint 31 …… Discharge pipe, 32 …… Discharge pipe joint 42 …… Air pipe joint, 61 …… Upper hopper 62 …… Cylinder, 63 …… Cone cylinder C …… Solid raw material, L …… Liquid raw material P …… Crushed product (slurry) 1 _F …… Lower stage, 2 _F …… Middle stage, 3 _F …… Upper stage

Claims (1)

[Claims] 1. A supply / discharging device for a batch type horizontal rolling mill, wherein a plurality of batch type devices having at least one opening 11 to a middle stage 2F of a three-stage structure including an upper stage 3F, a middle stage 2F and a lower stage 1F. The horizontal rolling mills 1 were arranged in parallel with their axes parallel to each other, and the storage tank 3 of the product having the discharge pipe 31 having the joint 32 at the tip was installed in the lower stage 1F, and the joint 41 was freely opened and closed in the middle stage 2F. An air pipe 4 is provided, and a work vehicle 5 and a raw material supply vehicle 6 are arranged in series so as to freely travel on a track 7 laid on the axis of the batch type horizontal rolling mill 1 in the upper stage 3F. Batch type horizontal rolling mill 1
The lid 12 for raw material insertion and the lid 13 for product discharge which are fitted into the opening 11 of each are equipped with one or more sets of hydraulic mechanisms for respectively detaching, grasping and moving up and down. An upper hopper 61 for receiving the raw material to be cut out and a conical cylindrical body 63 that closely moves into the opening 11 of the batch type horizontal rolling mill so as to be vertically movable are integrally supported, and the discharge lid 13 is provided.
Is equipped with a joint 32 for the discharge pipe 31, a joint 42 for forcibly discharging the high-viscosity product finely pulverized in the batch type horizontal rolling mill 1 and joints 16, 17 for engaging and disengaging, respectively. One set of crushing mechanism for each array is formed, and a vertical track 9 for connecting the ends of the crushing mechanisms of each row to each other at right angles is provided.
A trolley 10 that traverses at the same level as the track 7 is placed on the above, and control means for managing the time, position and movement of each member between each array and each array and each array in a predetermined relationship are connected. Automatic feed and discharge device for batch type horizontal rolling mills.