KR20010068023A - Automatic Transporting and scaling system of raw material for composition resin - Google Patents

Abstract

PURPOSE: An automatic transferring and measuring system of raw material for plastics is provided to quantitatively transfer raw materials in a small amount, to prevent the raw materials from clogging a valve, to transfer fire retardant products or fire sensitive products without cleaning, to freely transfer the raw materials in a small place, and to extend the length of transferring. CONSTITUTION: An automatic raw material transferring and measuring system(100) consists of many silo hoppers(20) installed in a frame(10) to store each plastic producing raw material; many intermediate hoppers(40) connected to the silo hoppers by a flexible conveyor member(30) and installed in the frame to receive the raw materials from the flexible conveyor member; many spin conveyor members(50) installed in the frame to transfer the raw materials from the intermediate hoppers; many scalers(60) separated form the lower portion of the spin conveyor members; and many supply members(70) quantitatively inputting the raw material to the corresponding scaler from the spin conveyor members. Finally, Plastic articles are produced from the transferred raw material.

Description

Automatic transporting and scaling system of raw material for composition resin

The present invention relates to an automatic transport and metering system for raw materials for the production of synthetic resins, and more particularly, to a structure that can automatically transport flame-retardant raw materials used in the manufacture of fibers or various chemical products, and at the same time, can automatically weigh the raw materials. The present invention relates to an automatic conveyance and weighing system for raw materials for producing synthetic resins.

In general, chemical plants produce chemicals with various chemical properties by mixing various auxiliary materials with the main raw materials according to the characteristics of the final product. In order to determine the properties of these chemical products, it is important to add a proper amount of auxiliary materials to the main material. Therefore, in chemical plants, various methods for automatic transfer and automatic weighing of auxiliary raw materials have been devised in order to add an appropriate amount of raw materials in the right place for loading various products.

In particular, chemical plants that produce ABS (acrylonitrile-butadiene-styrene) synthetic resins have a large number of raw materials of flame retardants and flame retardant aids used in the production of products, which may cause inadvertent inadvertent defects. What is the automation of the factory due to problems such as difficulty in manual operation during bulk input of raw materials, environmental pollution due to scattering of raw materials, increase in the number of workers in the work process of various raw materials, and difficulty in handling some products of flame retardant aids? More important.

By the way, the automatic transfer and metering systems of the flame retardant or flame retardant aid used in the conventional ABS synthetic resin production plant adopt a variety of automatic transfer line, such transfer line type, so-called "air transfer" or "disc chain transfer" Etc.

The "air transfer method" is to transfer the raw materials by air, the transfer pipe is blocked in the transfer process of the raw material, or the like due to the difference in physical properties, in particular the specific gravity between the raw materials and the main raw materials of the flame retardant and flame retardant aids, Since the raw material is gradually attached to the inside of the transfer line during a long time operation to reduce the diameter, there is a problem that the line is often dismantled and cleaned. In particular, in the case of cross-production of flame retardant and non-flame retardant products using the same plant line, since the flame retardant and non-flame retardant products should not be mixed, the air generated during the transportation of air after the production of flame retardant products is removed. There is a hassle to dismantle all lines in order to clean the flame retardant entrained in a bag filter installed for the purpose.

In addition, the "disc chain transfer method" is to transfer a raw material by installing a plurality of disks in each pipeline by a chain, there is a problem that the disk in the line is often worn or twisted chain.

The present invention has been conceived to solve the above problems, it is possible to quantitatively transport at the same time with a small amount and quantitative measurement of the raw material, has a structure that can prevent the clogging phenomenon of the raw material, transfer the flame retardant products or non-flammable products without cleaning It does not need additional equipment such as bag filter, freely transfers raw materials in a narrow space, extends the transfer length, and automatically produces raw materials for the production of synthetic resins. Its purpose is to provide a conveying and weighing system.

1 is a front view schematically showing an automatic transfer and metering system of the raw material for the production of synthetic resin according to a preferred embodiment of the present invention.

2 is a plan view of FIG.

3 is a side view schematically showing the unit connection structure of the silo hopper, the intermediate hopper, and the flexible conveyor member shown in FIG.

4 is a cross-sectional view showing the structure of the silo hopper shown in FIGS.

5 is a cross-sectional view showing the structure of the intermediate hopper shown in FIGS.

6 is an enlarged cross-sectional view of one end of the spin conveyor member shown in FIGS. 1 and 2;

7 is an enlarged plan view schematically showing a unit supply member part illustrated in FIGS. 1 and 2;

8 is an exploded perspective view schematically showing a valve device used in the supply member shown in FIG.

9 is a cross sectional view of FIG. 8.

<Description of the symbols for the main parts of the drawings>

10 ... frame 20 ... silo hopper 22 ... outlet

24 ... Stirring member 30 ... Flexible conveyor member 36 ... Spring driven motor

40 Medium hopper 42 Stirring rod 50 Spin conveyor member

60 Scaler 70 Supply element 100 System

120 ... flange pipe member 122 ... main pipe

124 Sub-pipe 126 Opening 130 Valve member

132 Valve 140 Scratch member 150 Cylinder member

The present invention for achieving the above object, a frame; A plurality of silo hoppers installed in the frame for storing raw materials for the production of synthetic resins, respectively; A plurality of intermediate hoppers each connected to the silo hopper by a flexible conveyor member and installed in the frame to receive the raw materials through the flexible conveyor member; A plurality of spin conveyor members respectively connected to the intermediate hoppers and installed in the frame to transfer raw materials stored in the intermediate hoppers; A plurality of scalers installed on the frame so as to be spaced apart from each other at a lower portion of the spin conveyor member; And a plurality of materials installed in the frame to quantitatively input and feed the raw materials conveyed through the plurality of spin conveyor members to a corresponding scaler, and to collectively connect the plurality of spin conveyor members to the scalers, respectively. And a supply member.

In the present invention, the flexible conveyor member comprises: a flexible pipe connecting between the bottom of the silo hopper and the top of the intermediate hopper; A helical spring rotatably installed inside said flexible pipe for transferring raw material of said silo hopper to said intermediate hopper; And a spring driving motor installed on the frame to be positioned above the intermediate hopper so as to rotate the spiral spring.

In the present invention, the silo hopper includes a substantially "W" shaped stirring member rotatably installed inside the silo hopper to prevent the raw material from being fixed around the discharge portion facing the flexible conveyor member. It is further provided.

In the present invention, the silo hopper further comprises a straight rod side stirrer rotatably installed on the inner wall of the silo hopper to agitate the raw material fixed to the side inner wall.

In the present invention, the intermediate hopper is provided on a rotary shaft rotated by a motor in order to prevent the raw material is fixed to the lower end is provided with a pair of stirring rods are installed at both ends of the rotary shaft to be spaced by a predetermined interval.

In the present invention, the spin conveyor member comprises: a horizontal tube having one end connected to the intermediate hopper and the other end provided with a discharge hole for discharging the remaining raw material supplied to the scaler; A helical spin spring installed to rotate inside the horizontal tube to transfer the raw material of the intermediate hopper to the scaler; And a spin driving motor installed in the frame so as to be positioned at the other end of the horizontal tube so as to rotate the spin spring.

In the present invention, the spin conveyor member is further provided with a sound absorbing member provided to be wound on the outer surface of the horizontal tube in order to prevent noise generated by friction with the inside of the horizontal tube by the rotation of the spin spring. .

In the present invention, the supply member is operated by a control unit, and each is passed through the plurality of spin conveyor members in order to quantify the raw materials selected while being transported through the spin conveyor member to the corresponding single scaler in order. It is preferred that there are a plurality of valve arrangements arranged in a minimum interval, preferably in a circular shape.

In the present invention, each of the valve device is: the raw material is continuously transferred, the main pipe is installed between the spin conveyor, and branched from the lower end of the main pipe to discharge a predetermined amount toward the scaler A flange pipe member having a sub pipe communicating with the scaler and an opening formed to face the sub pipe; A valve member rotatably installed on the subpipe to selectively open and close the subpipe; And a pair of scratch members reciprocally installed in the opening to scrape the powder present in the flange pipe member when the valve member opens the subpipe.

In the present invention, the valve member comprises: a valve having a shape that is joined to the inner surface of the sub-pipe; And a valve rotating shaft installed through the valve and the subpipe to rotate the valve, and rotated by a forward and a reverse motor.

In the present invention, the scratch member is preferably reciprocated by the cylinder member provided in the opening.

Hereinafter, with reference to the accompanying drawings, the automatic transfer and metering system of the raw material for producing a synthetic resin according to a preferred embodiment of the present invention will be described in detail.

1 is a front view schematically showing an automatic transfer and metering system of the raw material for producing synthetic resin according to a preferred embodiment of the present invention, Figure 2 is a plan view of FIG.

The system is installed in a chemical plant for the production of synthetic resins such as ABS (acrylonitrile-butadiene-styrene) resins, flame retardant resins such as polystyrene, polycarbonates, polyesters, polyvinyl chlorides or the like and nonflammable products. . In addition, the system is intended to accurately add the appropriate amount of a flame retardant or flame retardant aid to the main raw material of the synthetic resin. The flame retardant is, for example, bromine, hexabromocyclodecane, decabrom (decabromodiphenyloxide), bus (tribromophenoxy) ethane, octabromodiphenyl dioxide, tetrabromobisphenol A, brominated polystyrene, Halogenated compounds such as acamic acid bromide, brominated epoxy, brominated phosphate, brominated polycarbonate, phosphorus compounds such as alkylated phosphates, esters, resorcinol diphosphate and triphenol phosphate, metal oxides such as antimony oxide and magnesium hydroxide or hydroxides This is true. The following mainly describes the quantitative addition method of the flame retardant and reveals that the method of adding the nonflammable agent is not significantly different from that of the present embodiment.

As shown in Figs. 1 and 2, the system 100 is partitioned into a certain area and independently stored so as not to mix with each other the frame 10 for seating the respective devices and various synthetic resin production materials. To this end, five silo hoppers 20 installed at predetermined positions of the frame 10 and five sets of flexible conveyor members 30 are connected to the silo hoppers 20, respectively. 30 are respectively connected to the five intermediate hoppers 40 installed in the frame 10 and the intermediate hoppers 40 so as to receive raw materials at positions higher than the silo hopper 20 through the intermediate hoppers 40. Five spin conveyor members 50 installed in the frame 10 and five sets of spin conveyor members 50 spaced apart from each other at predetermined intervals to linearly transfer raw materials, and seven scalers installed in the frame 10. Spin with 60 Some or all of the raw materials conveyed through the conveyor member 50 are selected and combined in a quantitative manner to the corresponding scaler 60, and a plurality of spin conveyor members 50 are collectively added to the scaler 60. It is provided with seven supply members 70 installed in the frame 10 to connect each.

The frame 10 is made of a steel structure, the space is provided for the mounting of the system 100, it is preferable to be used as a generic name of the entire plant in which the control unit and various computing equipment not shown.

FIG. 3 is a side view schematically illustrating a unit connection structure of the silo hopper, the intermediate hopper, and the flexible conveyor member illustrated in FIG. 1.

1 and 3, the silo hopper 20 has a conventional hopper structure in which chemical raw materials (not shown) such as a flame retardant or a flame retardant aid are stored, and an individual capacity is approximately 2 m 3. The number of silo hoppers 20 is determined according to the kind of raw material used, ie, a flame retardant. However, it is preferred that five are typically used in the operation of the system 100. Each silo hopper 20 is transported and stored by a hoist crane (not shown) installed in the frame 10 or the like.

In addition, the silo hopper 20 prevents the raw material from sticking around the bottom discharge portion 22 of the hopper, and the inside of the silo hopper 20 so that the raw material can be smoothly discharged through the flexible conveyor member 30. An approximately " W " shaped stirring member 24 rotatably installed therein is provided. The stirring member 24 is rotated by the first motor 26 installed on the outer wall of the discharge part 22 of the silo hopper 20 and controlled by the controller.

As shown in FIG. 4, the silo hopper 20 has a straight rod side rotatably installed on the inner wall 28 to prevent the raw material from sticking to the inclined inner wall while being positioned above the outlet 22. The stirrer 21 is provided. The side stirrer 21 is rotated by the second motor 23 installed on the outer wall of the silo hopper 20 and controlled by the controller.

As shown in FIGS. 1 and 3, the intermediate hopper 40 is a container in which raw materials corresponding to a batch are stored before the raw materials stored in the silo hopper 20 are supplied to the scaler 60. , As described above, is installed in the frame 10 at a position about 1.5 m higher than the corresponding silo hopper 20.

As shown in Figure 5, the intermediate hopper 40 is provided with a stirring rod 42 to prevent the raw material is fixed to the bottom of the hopper. The stirring rod 42 is rotated by a third motor 44 installed on the outer wall of the intermediate hopper 40 and controlled by the controller. The rotating shaft 46 of the third motor 44 is installed through the intermediate hopper 40, and a pair of stirring rods 42 are provided at both ends of the rotating shaft 46 so as to be spaced apart from each other by a predetermined interval.

1 to 3, the flexible conveyor member 30 overcomes the height difference between the silo hopper 20 and the intermediate hopper 40 as well as in the left, right, up and down directions in a narrow space. It has a structure for smoothly transferring the raw materials without regard to the. To this end, the flexible conveyor member 30 has a lower end of the silo hopper 20 and an upper part of the middle hopper 40, strictly speaking, the front end of the connecting pipe 25 installed in the silo hopper 20 and the middle hopper 40. In order to transfer the raw material stored in the silo hopper 20 and the intermediate | middle hopper 40, the flexible pipe 32 which connects between the ends of the guide pipe 48 installed in the upper part of the inside of the flexible pipe 32 It is provided with a helical spring (34) rotatably installed, and a spring driving motor (36) installed on the frame (10) of the upper portion of the intermediate hopper (40) to rotate the helical spring (34).

The flexible pipe 32 is manufactured in the form of a conventional tube, it is sufficient to have a flexible structure that can be bent up, down, left, right. The spiral spring 34 is a spring used to transfer fine and fluid raw materials. The spiral spring 34 is made of a material having a special heat treatment to be durable, and maintains an optimum distance from an inner wall of the flexible pipe 32 to transfer resistance. It is desirable to minimize this. One end of the helical spring 34 is installed on the rotation shaft 38 of the spring drive motor 36, the other end of which is located close to the outlet 22 of the silo hopper 20. The spring driving motor 36 is installed to be inclined with respect to the vertical direction corresponding to the bending angle of the flexible pipe 32.

1 and 2 and 6, each of the spin conveyor member 50 is installed in the frame 10 so as to be connected to the intermediate hopper 40, the raw material stored in the intermediate hopper 40 in a straight line It is for conveying. The spin conveyor member 50 includes a horizontal tube 52, a spin spring 54 rotatably installed in the horizontal tube 52, a spin drive motor 56 for rotating the spin spring 54, and The sound absorption member 58 provided in the outer surface of the horizontal tube 52 is provided.

The horizontal pipe 52 has one end connected to the middle hopper 40, the other end is supplied to the scaler 60, the discharge hole 51 for discharging the remaining raw material is provided, the unit length is made of a metal material It is preferable to use a plurality of pipes having a connection. The spin spring 54 has a structure similar to the spiral spring 34 described above, and is installed to rotate inside the horizontal tube 52 to transfer the raw material of the intermediate hopper 40 to the scaler 60. The spin driving motor 56 is installed on the frame 10 so as to be located at the other end of the horizontal tube 52 so as to rotate the spin spring 54. The sound absorbing member 58 is for preventing the noise generated by the friction with the inside of the horizontal tube 52 by the rotation of the spin spring 54, is installed by winding the outer surface of the horizontal tube 52 Any material that can produce noise reduction is sufficient.

1 and 6, the scaler 60 is for metering raw materials supplied from the intermediate hopper 40 through the spin conveyor member 50, and has a conventional hopper structure. In addition, seven scalers 60 are installed below the spin conveyor member 50 so as to be spaced apart from each other by a predetermined interval. The number of scalers 60 can be adjusted as needed. The scaler 60 is provided with a sensor 62, and a canvas made of silicon is used to accurately secure a "zero point" even with slight vibration.

As shown in FIGS. 1 and 2 and 7, the supply member 70 is provided with seven equal to the number of the scalers 60, respectively operated by the control unit, and each through the spin conveyor member 50. The raw materials to be transported are selected and quantified in a single scaler 60 corresponding to the selected raw materials. The supply member 70 is preferably a valve device which is arranged in a minimum distance from each other, preferably circular, through the aggregated spin conveyor member 50.

For example, the first scaler 62 of FIG. 1 requires A, B, C, raw materials among the five kinds of raw materials A, B, C, D, and E, and the second scaler 64 is B. Assuming that C, D, and raw materials are required, the first supply member 72 includes five spin conveyor members L1, L2, L3, L4, and L5 corresponding to A, B, C, D, and E raw materials: 2, only the L1, L2, and L3 lines are opened and selectively opened and closed, and unnecessary L4 and L5 lines are not operated, and the second supply member 74 includes five spin conveyor members L1, L2, L3, and L4. , L5) is to open and close selectively by operating only the L2, L3, L4 lines, and do not operate unnecessary L1, L5 lines.

On the other hand, the raw materials present in each of the spin conveyor member 50 by the operation of the supply member 70 is for supplying the entire scaler 60 without the raw material attached to the inside of the spin conveyor member 50 sequentially. .

FIG. 8 is an exploded perspective view schematically showing one valve device used in the supply member 70 shown in FIGS. 1 and 2 and 7, and FIG. 9 is a cross sectional view of FIG. 8.

As shown in FIG. 8 and FIG. 9, the valve device 200 supplies the main pipe 122 and the raw material to the scaler 60 with a predetermined amount installed between the spin conveyor members 50 through which the raw material is continuously transferred. The flange pipe member 120 having a sub pipe 124 branching from the lower end of the main pipe 122, the valve member 130 rotatably installed on the sub pipe 124, and the flange pipe member 120. It is provided with a scratch member 140 installed to reciprocate.

The flange pipe member 120 has a main pipe 122 that functions as a spin conveyor member 50 by flange connection between the spin conveyor members 50, and a sub pipe branched vertically downward from the main pipe 122. 24 and an opening 126 projecting a predetermined length vertically upward. Ends of the flange pipe member 120 have a flange structure for coupling with other components. In addition, the main pipe 122 and the sub-pipe 124 is preferably configured to be joined to the shape of the spin conveyor member 50, for example, cylindrical, rectangular.

The valve member 130 has a structure similar to a conventional butterfly valve. The valve member 130 selectively opens or closes the sub pipe 124 to selectively feed the raw material transferred through the main pipe 122 of the flange pipe member 120 to the scaler 60 through the sub pipe 124. It is for discharge. The valve member 130 is formed in contact with the inner surface of the sub-pipe 124, in this embodiment, the disk-shaped valve 132 and the valve 132 is rotated perpendicular to the center of the sub-pipe 124 In order to achieve this, the valve rotation shaft 136 rotated by the forward and reverse rotational fourth motor 134 installed through the valve 132 and the sub pipe 124 and automatically operated by the controller, and the sub pipe ( And a valve body 138 bolted to the insertion flange 128 provided at 124 and surrounding the valve 132.

Each of the scratch members 140 scrapes raw materials present in the main pipe 122 and the sub pipe 124 of the flange pipe member 120 when the valve member 130 opens the sub pipe 124. And a scratch rod 142 which is reciprocally installed through the opening 126 and a substantially semicircular scratch spatula 144 formed at the end of the scratch rod 142. The scratch member 140 is reciprocated by a cylinder member 150 operated by a pneumatic or hydraulic principle that is automatically operated by the control unit. To this end, the closed flange flange 154 of the cylinder support 152 is installed in the opening flange 121 formed in the opening 126 of the flange pipe member 120. The blend flange 154 has a through hole (not shown) through which the scratch rod 142 may pass. The cylinder 156 mounted on the cylinder support 152 reciprocates the scratch rod 142 by pneumatic or hydraulic pressure introduced from the outside.

Referring to the operation of the automatic transfer and metering system of the raw material for producing synthetic resin according to the preferred embodiment of the present invention configured as described above are as follows.

First, as shown in Figures 1 and 2, after the raw material is put into the silo hopper 20 by a hoist crane or the like, and then operating the system 100 through the control unit, while the spring drive motor 36 is rotated The flexible conveyor member 30 is operated to allow the spiral spring 34 to rotate at a high speed inside the flexible pipe 32. Then, the raw material stored in the silo hopper 20 is transferred to the corresponding intermediate hopper 40 through the flexible conveyor member 30. In this process, the raw material to be moved is the raw material stored in the silo hopper 20 is installed in the discharge unit 22 and the "W" shaped stirring member 24 and the second motor 23 rotated by the first motor 26. It is agitated by the side stirrer 21 rotated by) so that the raw material does not adhere to the silo hopper 20. Accordingly, the raw material stored in the silo hopper 20 is transferred to the intermediate hopper 40 through the flexible conveyor member 30 without loss of the raw material.

The raw material transferred into the middle hopper 40 by one batch through the upper space is stirred by the stirring bar 42 rotated by the third motor 44. At the same time, the spin driving motor 56 of the spin conveyor member 50 causes the spin spring 54 to rotate at a high speed inside the horizontal pipe 52, whereby the raw materials stored in the intermediate hopper 40 are horizontal. It is transferred in the longitudinal direction of the pipe (52). In this process, the noise caused by the friction between the horizontal tube 52 and the spin spring 54 is reduced by the sound absorbing member 58 provided outside the horizontal tube 52.

In this process, the raw materials conveyed through the spin conveyor member 50 by the supply member 70 operated by the controller are cooked at the position of the corresponding scaler 60, and quantitatively input to the scaler 60 in the selected order. do. An example in which the five spin conveyor members 50 are supplied to the scaler 60 via the supply member 70 is as described above, and the valve device 200 of the supply member 70 is provided in the individual spin conveyor members 50. The operation of is described with reference to Figures 9 and 10 as follows.

First, as shown in FIG. 9, when the raw material P is supplied through the right main pipe 122 flanged to the right spin conveyor member 112, the valve 132 is closing the sub pipe 124. In the state, as the raw material accumulates inside the sub-pipe 24 belonging to the upper part of the valve 132 and as time passes, the raw material P passes through the right main pipe 122 and the right spin conveyor member 114. Transferred.

In this state, the valve member 130 must be operated to introduce a predetermined amount of the raw material P into the scaler 60 through the sub pipe 24. To this end, when the fourth motor 134 is rotated to rotate the rotary shaft 136 by 90 degrees in the forward direction (the arrow “A” direction in FIG. 9), the disc shaped valve 132 semicircles the inner diameter of the sub pipe 124. By dividing the main pipe 122 and the sub pipe 124 while being divided into forms, the raw material existing on the upper portion of the valve 132 and the raw material P transferred through the main pipe 122 are sub It is injected through the lower end of the pipe (124). In this process, when the scratch member 140 is lowered by operating the cylinder member 150, the pair of scratch spatulas 144 enter each of the spaces dividing the sub pipe 124 in a semicircular shape at the pivoted position. In addition, since the raw material may scratch the raw material that may be stuck in the interior of the flange pipe member 120, in particular, the main pipe 122 and the sub-pipe 124 is coupled to the flange pipe member 120 The raw material P can be introduced into the scaler 60 through the sub pipe 124 without leaving.

Thus, the fully lowered scratch member 140 is raised by the reverse operation of the cylinder member 150 to return to the original position, and at the same time the fourth motor 134 is rotated 90 degrees in the reverse direction valve 132 Closes the subpipe 124 while returning to the home position. The rotational movement of the valve 132 and the reciprocating movement of the scratch member 140 for opening and closing the valve member 130 is preferably set to operate simultaneously within a range that does not interfere with each other.

On the other hand, the raw materials conveyed to the end of the horizontal tube 52 without being introduced into the scaler 60 even after passing through each supply member 70 is discharged through the discharge hole (51).

As described above, the automatic transfer and metering system of the raw material for producing synthetic resin according to the present invention has the following effects.

First, it is easy to utilize a narrow space because the system can be installed in a curved form rather than a straight line by using a flexible conveyor member.

Second, by transferring the raw material while the spiral spring is rotated inside the flexible pipe, it is possible to prevent the blockage of the line due to the attachment of the raw material, thereby reducing the loss of raw material or the number of maintenance work of the facility.

Third, because it is not the transfer of raw materials using the air or disk method, the auxiliary equipment is unnecessary, the installation is simple, and the space can be efficiently operated.

Fourth, by selecting the transfer method of the raw material by the rotation of the spring can not only reduce the loss generated during the transfer, but also can reduce the measurement error due to the loss can be made precise weighing.

Fifth, since all of the supplied raw materials are transferred, it is easy to transfer flame retardant products and non-flammable products alternately, and there is no need to clean the process, thereby increasing convenience of use.

Sixth, it is possible to automatically and quantitatively discharge the supply member (valve device) with a special structure, that is, the entire amount of fine powder which may be stuck during transportation by the vertical rotation of the valve and the scratching action of the scratch member, without dropping inside the pipe. When employed as a component of a measurement system, the stability and durability of the entire system can be ensured.

Seventh, by operating the valve device by a simple motor and cylinder, etc., the cost is low.

Eighth, mechanical failure or failure rate of operation can be reduced.

Claims (11)

frame; A plurality of silo hoppers installed in the frame for storing raw materials for the production of synthetic resins, respectively; A plurality of intermediate hoppers each connected to the silo hopper by a flexible conveyor member and installed in the frame to receive the raw materials through the flexible conveyor member; A plurality of spin conveyor members respectively connected to the intermediate hoppers and installed in the frame to transfer raw materials stored in the intermediate hoppers; A plurality of scalers installed on the frame so as to be spaced apart from each other at a lower portion of the spin conveyor member; And A plurality of supplies installed in the frame to quantitatively input and feed the raw materials conveyed through the plurality of spin conveyor members to a corresponding scaler and to collectively connect the plurality of spin conveyor members to the scalers, respectively. Automatic conveyance and metering system of the raw material for the production of synthetic resin, characterized in that it comprises a member. The method of claim 1, The flexible conveyor member is: A flexible pipe connecting between the bottom of the silo hopper and the top of the middle hopper; A helical spring rotatably installed inside said flexible pipe for transferring raw material of said silo hopper to said intermediate hopper; And And a spring driving motor installed in the frame so as to be positioned above the intermediate hopper so as to rotate the spiral spring. The method of claim 1, The silo hopper further includes an approximately "W" shaped stirring member rotatably installed in the silo hopper to prevent the raw material from being fixed around the discharge portion facing the flexible conveyor member. Transfer and metering system for raw materials for the production of synthetic resins. The method according to claim 1 or 3, The silo hopper further comprises a linear rod side stirrer rotatably installed on the inner wall of the silo hopper to agitate the raw material fixed to the inner side wall of the silo hopper. The method of claim 1, The intermediate hopper is a synthetic resin production, characterized in that it is provided on the rotary shaft rotated by a motor to prevent the raw material is fixed to the lower end and a pair of stirring rods are installed at both ends of the rotary shaft spaced apart by a predetermined interval, respectively Automatic transfer and weighing system of raw materials for The method of claim 1, The spin conveyor member is: A horizontal tube having one end connected to the intermediate hopper and the other end provided with a discharge hole for discharging the remaining raw material supplied to the scaler; A helical spin spring installed to rotate inside the horizontal tube to transfer the raw material of the intermediate hopper to the scaler; And And a spin driving motor installed in the frame so as to be positioned at the other end of the horizontal tube so as to rotate the spin spring. The method of claim 6, The spin conveyor member may further include a sound absorbing member installed to be wound around an outer surface of the horizontal tube in order to prevent noise generated by friction with the inside of the horizontal tube by the rotation of the spin spring. Automatic transfer and weighing system of raw materials for production. The method of claim 1, The supply member is operated by a control unit, and the smallest distance between the plurality of spin conveyor members, preferably through a plurality of spin conveyor members in order to quantitatively select the raw materials selected while being transported through the spin conveyor member, respectively, in order. Automatic transfer and metering system of raw materials for the production of synthetic resin, characterized in that a plurality of valve devices arranged in a circle. The method of claim 8, Each valve device is: The raw material is continuously conveyed and opposed to the main pipe installed between the spin conveyor, the sub pipe branched from the lower end of the main pipe to communicate with the scaler to discharge the raw material toward the scaler. A flange pipe member having an opening so formed; A valve member rotatably installed on the subpipe to selectively open and close the subpipe; And And a pair of scratch members reciprocally installed in the opening to scrape the powder present in the flanged pipe member when the valve member opens the subpipe. Conveying and weighing system. The method of claim 8, The valve member is: A valve having a shape that is joined to an inner surface of the subpipe; And And a valve rotating shaft installed through the valve and the sub pipe to rotate the valve, the valve rotating shaft being rotated by a forward and a reverse motor. The method of claim 8, And the scratch member is reciprocated by the cylinder member installed in the opening.