KR20180011708A - Double extruder type injection machine having different rotating speeds - Google Patents

Abstract

A type of an injection machine disclosed by the present invention is a double extruder type injection machine having different rotation speeds, the double extruder type injection machine for processing an injection molded product to be processed by mold pressing the same. The double extruder type injection machine of the present invention discloses an injection machine for processing the injection molded product on which a mold pressing process is performed, particularly for performing the mold pressing process of the injection molded product to be processed containing a fiber material, and the double extruder type injection machine of the present invention includes an injection machine main body for proceeding a forming mold pressing process, and additionally includes a double extruder type mixing structure for melting and cutting a processing waiting material. The double extruder type mixing structure includes: a first extruder in which a first injection port for injecting raw materials is installed; and a second extruder which is positioned under the first extruder, and in which a second injection port is installed to enable the fiber material to be cut and heated at a position of the second injection port by injecting the fiber material into the second extruder through the second injection port, wherein the double extruder type mixing structure enables the fiber material and a granule type material to be processed through different extruders. Therefore, the double extruder type injection machine according to the present invention maximally secures the length of the fiber material passing through the cutting process and is able to minimize the extent to which the fiber material is damaged by high temperatures. The double extruder type mixing structure can further expand an adjusting range of a product processing method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a double extruder type injection machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an injection molding machine, and more particularly, to a double extrusion molding machine having different rotational speeds for mold pressing an injection molded article to be processed.

Composite reinforcing fibers are a class of high performance fibers that have a high degree of performance such as high non-rigidity, non-elasticity, heat resistance, corrosion resistance, fatigue resistance, anti-radiation properties, conductivity, thermoelectric performance and relative low density. Composite reinforcing fibers are generally applied to the injection product to enhance the structure and strength of the injection product.

Currently, there are four methods of using composite reinforced fibers that have already matured: hand layup lamination, filament winding method, mold pressing method, and long fiber raw material injection method.

In the case of the hand lay-up lamination method, the composite reinforcing fiber sheet precipitated in the adhesive is sheared and laminated, or the resin is applied simultaneously with the lay-up, and a thermal molding press is performed again. The composite reinforcing fiber product produced by this method has high strength but low production efficiency.

In the case of the filament winding method, the composite reinforcing fiber monofilament is wound around a fiber shaft, and this method is applied to the manufacture of a cylindrical body and a hollow ware, and the production efficiency is low.

In the case of the above-mentioned mold pressing method, a composite reinforcing fiber material precipitated in advance in a resin is put into a metal mold and pressed, followed by curing molding at a high temperature such that the excess adhesive fluid overflows. The composite reinforcing fiber product produced by this method has a high strength, but its production efficiency is low and the structure can not be manufactured.

In the case of the above-mentioned long fiber raw material injection method, the composite reinforcing fiber is processed into a raw material and then subjected to an injection molding process of the injector.

In this way, the production efficiency problem has been solved, but since the fibers of relatively long length in the raw material are cut or heated by the injection machine screw and the hot flow path, only 30% of the finished products have a length of 5 mm or more, do.

In order to improve the strength of the injection product, it is a very necessary means to apply the composite reinforcing fiber. However, when the composite reinforcing fiber is processed, the strength of the composite reinforcing fiber material is easily damaged by high temperature. The degree of staggering affects the strength of the finished product. Therefore, it is very important to shorten the time during which the composite reinforcing fiber material is damaged by the high temperature during the injection process and to increase the length of the fibers in the finished product.

Therefore, it is very urgently required to design a device capable of reducing the time during which the composite reinforcing fiber material is damaged by high temperature and increasing the cutting length of the fiber material cut in the injection process when the composite reinforcing fiber material is processed in the injection product.

In order to solve the above-described problems, the technical idea adopted by the present invention is a double extruder type injection molding machine in which rotational speeds for molding and press molding the injection products to be processed are different. And a second extruder provided at a lower portion of the first extruder and provided with a second inlet for introducing the fiber material so that the fiber material is cut and heated from the second inlet position, And the second extruder and the first extruder have different rotational speeds.

The raw material charged into the first charging port is melted through cutting and heating.

Since the second extruder and the first extruder are driven using different driving mechanisms, different rotational speeds can be realized.

The second extruder is provided with a feed shooter, a pipe is installed in the first extruder, and the feed shoe and the pipe position correspond to each other so that the raw material is introduced into the second extruder by the first extruder after cutting and melting. do.

And the second extruder and the first extruder are connected by conducting the passage. And the raw material is introduced into the second extruder by the first extruder after being cut and melted through the passage.

The second extruder may have a lower rotational speed than the first extruder.

The second extruder may have a higher rotation speed than the first extruder.

The double extruder type extruder having different rotation speeds includes a pre-processing structure for performing initial molding on the injection target product to be processed. The pre-machining structure includes a die head for blank production and a block press for the production of a mold preform product.

The pre-machining structure is connected to the injector body through a pre-mold pressing gate valve, and the pre-mold pressing gate valve is switched to change the flow direction of the injection molten material, Thereby changing the flow direction of the injection molten material.

Compared to the current technology, the present invention has the following advantages and effects.

1. Through the adoption of the double extruder structure, the extruder for the fiber reworking was professionally designed and the fiber material and the granular material were processed through different extruders. As a result, the length of the cut fiber material can be maximized and the degree of damage caused by the high temperature can be minimized. The double extruder type mixing structure further widens the control range of the product processing method and realizes different rotational speeds to melt the granular material and to mix the fiber material and the melted granular material. In the case of fiber rework, the strength of the fiber material itself is easily damaged at high temperatures, and the length of the fiber and the degree of complication of the fibers in the finished product will affect the strength of the finished product. As a result, it is possible to reduce the time required for the fiber material to be damaged by the high temperature during the mixing process, to lower the temperature required for the fiber material mixing process, to shorten the cutting time of the fiber material during the mixing process, The length of the fibers can be increased.

2. The fibrous material and the granular material are divided by the first inlet and the second inlet so that the fibrous material and the granular material can be easily processed.

3. Since the rotational speeds of the second compressor and the first compressor are different, the cutting speed of the fiber material and the granular material can be controlled.

4. It is possible to solve the inconvenience of processing and transporting different kinds of injection products of a complicated structure in different apparatuses in a different device by integrally processing and molding injection products of a complicated structure by installing the above-mentioned linear processing structure, It is possible to prevent erroneous results in which the product structure and the strength are inconsistent due to the different ratios, and it is possible to remarkably improve the processing efficiency for the injection molding of the complicated structure.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly explain the technical solution in each embodiment of the present invention, the following figures are briefly described.
1 is a schematic view of a device according to an embodiment of the present invention,
2 is a schematic view of a device according to another embodiment of the present invention,
3 is a schematic view of a device according to another embodiment of the present invention,
4 is a schematic view of a storage injection structure according to the present invention,
5 is a cross-sectional schematic diagram of a front view of a buffer accumulator according to the present invention,
6 is a schematic cross-sectional view of a right side view of a buffer accumulator according to the present invention,
7 is a cross-sectional schematic diagram of a storage injection gate valve and an injection gate valve according to an embodiment of the present invention,
8 is a cross-sectional schematic diagram of a storage injection gate valve and an injection gate valve according to another embodiment of the present invention,
9 is a cross-sectional schematic diagram of a storage injection gate valve and an injection gate valve according to another embodiment of the present invention.

Hereinafter, the technical characteristics and advantages of the present invention will be described in more detail by referring to the drawings.

Injection products Especially injection machines for performing mold pressing processing on injection molded articles which are complicated in structural form, including mixing structures, storage injection conversion structures, injection structures, injection machine clamping devices and pre-processing structures.

Example 1

The present embodiment differs from the double extruder type extruder in that the rotation speed is different from that in the above embodiment in that cutting and melting are performed on materials to be processed of different types in the mixing structure.

The material to be processed includes fibers and raw materials, the length of the fibers includes continuous fibers and short fibers, and the fibers include carbon fibers.

The mixing structure includes an electric motor 23 and an extruder 1. The electric motor 23 provides power during the mixing process and the output shaft of the electric motor 23 and the input terminal of the speed reducer are connected to each other, Are connected to the extruder (1). A screw assembly is installed in the extruder 1 so that the screw assembly rotates in the axial direction by the movement of the speed reducer. The screw assembly includes at least one screw, wherein the screw is provided with at least one spiral line. When the workpiece moves along the spiral line in the forward direction, various types of spiral lines are formed, and it is more advantageous to cut the workpiece by combining various types of spiral lines. At least two through holes are provided in the extruder 1 and the through holes are connected to a second feed through hole 10 for connecting the first feed through hole 8 and the fiber loading device 7 into which the raw material is fed, ). Wherein at least one of said second feed through holes (10) is located below said first feed through hole (8).

The electric motor 23 is a power output device that drives the speed reducer, the speed reducer moves through a reduction torque of the internal structure, and the screw assembly rotates in the same direction along the axis. The screw assembly naturally cuts the raw material and is heated and melted by a heating device, the fiber material is cut by the screw assembly to form fiber segments, and the fiber segments and the molten mixed material are extruded into an injection melt Mixed. The injection molten material is sent to the downstream unit together under the action of a thrust generated during screw rotation. By injecting the continuous fibers at positions relatively farther than the speed reducer, the cutting and melting time of the continuous fibers is reduced to ensure a sufficient length of the fiber segments.

The fiber material and the raw material are separated and put into the mixing structure. The feeding position of the fiber material is located below the feeding position of the raw material to reduce cutting and heating time for the fiber material, Ensure that the fiber strength is not destroyed. As a result, the length of the fiber segment formed by cutting the fiber material becomes longer, so that the ratio of the fiber segment of 5 mm or more is further increased, and further, the tensile strength and the impact strength of the finished product after injection molding are increased So that the cutting time is further improved compared to a relatively long production method.

Example 2

The difference between this embodiment and the double extruder type injection molding machine having different rotational speeds as described above is that the accumulator 3, the storage injection hydraulic cylinder, and the storage injection gate valve 12 are included in the storage injection / .

Since the mixing structure continuously supplies raw materials during operation, the injection molten material is continuously extruded. However, since the injection structure is an intermittent dynamic state, there is a constant injection and dwell time for every molding cycle. Therefore, when the injection molten material is constantly supplied from the mixing structure by continuously providing the temporary storage space for the injection molten material continuously supplied, continuous flow of the raw material of the mixing structure is performed by increasing the production efficiency I will. The buffer accumulator 3 installs a temporary storage space in the injection molten metal. A heating device is provided outside the buffer accumulator 3 for continuously heating the injection molten material so that the injection molten material always remains in a molten state.

The storage injection hydraulic cylinder provides power to the buffer accumulator (3). The storage injection hydraulic cylinder has two hydraulic cylinder bodies symmetrically arranged on both sides of the buffer accumulator 3. And the symmetrically provided storage piston rod is uniformly applied with force to stabilize the structure, so that the storage injection hydraulic cylinder and the storage hydraulic cylinder The buffer accumulator reduces unused wear caused by unbalanced force and extends service life.

The storage injection gate valve 12 converts the injection molten material from a storage state to an injection state. When the injection molten material flows into the injection structure, the storage injection gate valve 12 conducts the passage between the mixing structure and the injection structure, and at the same time, conducts the passage between the storage injection conversion structure and the injection structure So that the injection molten material flows from the buffer accumulator 3 to the injection cylinder 2 simultaneously with the extruder 1. When the injection molten material is introduced into the storage injection conversion structure, the storage injection gate valve (12) conducts the passage between the mixing structure and the storage injection conversion structure so that the injection molten material flows under the action of the storage injection hydraulic cylinder And flows into the buffer accumulator (3). At this time, the passage for entering the injection cylinder 2 is cut off.

The injection molten material flows to the upper part after filling the injection cylinder 2 and flows into the buffer accumulator 3 to perform temporary storage. If injection of the injection structure is completed, the injection molten material transferred from the mixing structure flows into the injection cylinder 2. At the same time, the injection molten material stored in the buffer accumulator 3 also flows into the injection cylinder 2 under the action of the storage injection hydraulic cylinder.

The storage injection conversion structure is provided with one temporary storage space for the injection molten material continuously supplied from the mixing structure, thereby significantly improving the production efficiency in the industrial production and preventing the breakage of the equipment caused by repeatedly stopping the operation And prevents waste of energy due to repeated heating of the injection molten material.

Example 3

The injection molding machine according to the present invention differs from the double extruder-type injection molding machine in that the injection molding process is completed in the injection molding structure. The injection molding structure includes an injection cylinder 2 for storing a predetermined amount of injection molten material, Wherein the injection injection gate valve (12) is adapted to inject the injection molten material into the injection cylinder (2) when the amount of the injection molten material injected into the injection cylinder (2) reaches a predetermined level, The injection molten material is pushed by the injection pusher until it is pushed out of the injection gate valve 14.

The injection pusher is installed inside the injection cylinder 2, and the outer diameter of the injection pusher is equal to the inner diameter of the injection cylinder 2 and is mixed with an interval.

The injection gate valve 14 is opened upon injection and closed upon storage. Therefore, the high pressure of the molten material at the time of storage prevents the molten material from being ejected from the nozzle hole and affecting the molten molding.

Example 4

1, the injector clamping device 5 fixes and mounts a mold, and a part of the injector clamping device 5 is connected to the injector clamping device 5, Wherein the injector clamping device (5) provides a clamping load to the mold so that the injection molten material can be easily fixed and formed when the injection mold is injected, .

Example 5

The difference between the double extruder-type extruder and the extruder-type extruder according to the present embodiment is that they include a pre-machining structure for performing an initial machining operation on the injection molten material in a double extruder-type extruder having different rotational speeds, The structure includes a die head 18, a cutting device 9, a transfer mechanism and a block press 4.

The injector is provided with a direction switching valve 13, which is located on a lower passage through which the injection molten material extruded by the mixing structure flows, so that the injection molten material continuously flows out of the mixing structure And the direction of the injection molten material is switched through the directional control valve 13. When the directional control valve 13 brings the injection molten material into the pre-processing structure, the injection molten material is injected into the die head 18, The pressing gate valve 11 is adjusted to adjust the flow rate and volume of the injection molten material injected into the die head 18. [ When a certain amount of injection molten material is injected into the die head 18, the injection of the injection molten material is stopped by cutting the pre-mold pressing gate valve 11. The injection molten material undergoes rudimentary molding in the die head 18 to form the blank 17 and cuts the blank 17 into individual blank through the cutting device 9.

And the blank 17 is transferred to the block press 4 through the transfer mechanism. The blank 17 is molded into the mold preform product 15 in the block press 4 and further the mold preform product 15 is transferred into the injector clamping device 5. One end of the injector clamping device 5 is connected to the injection mechanism so that when the mold preform product 15 is located in the injector clamping device 5, the injection molten material is injected into the injector clamping device 5 via the injection mechanism The mold preform product 15 is subjected to secondary molding.

The transition mechanism may include a mechanism such as a conveyor 6, a first robotic hand 19, a second robotic hand 20, and the like. The transfer mechanism is capable of integrally processing molding of a complex structure type injection product by providing the linear processing structure. Therefore, it is common to solve the troubles of processing and transporting different kinds of injection molding products of different complex shapes in different apparatuses, and to prevent wrong result that the product structure strengths are inconsistent due to different mixing ratios of the respective devices, Thereby significantly improving the processing efficiency of the injection product of the injection molding machine.

The pre-machining structure may be provided on a path between the mixing structure and the injection conversion structure, but may be provided between the storage injection conversion structure and the injection structure.

The direction of flow of the injection molten material flowing between the pre-processing structure and the storage / injection converting structure can be switched by adjusting the pre-processing structure through the directional control valve (13). When the injection molten material continuously flows out from the mixing structure and only the two steps such as the injection and the non-injection stages are carried out, the production efficiency is greatly reduced. However, the injection molding machine of the present invention does not affect the injection process The injection molding process can be carried out by drawing the linear machining structure unit to perform a normal injection stage and at the same time, the molded product can be linearly processed to realize mold pressing and injection at the same time, It is possible to solve the problem of low utilization due to mixing and mixing of the different mixing structures and then performing the respective mold pressing and injection. Further, since mixing is performed with the same mixing structure, reduction in the amount of the extruder used, lowering of the cost of the equipment, and ensuring consistency of the mixing can be realized, compared with the case of processing each of the mold pressing and the injection. In addition, the injector can be used to produce injection molded articles having a complicated structure.

Example 6

The difference between the present embodiment and the double extruder-type extruder having different rotational speeds as described above is as follows. The directional control valve 13 is a three-way valve. When the directional control valve 13 is closed, both the passages for flowing the pre-mold pressing gate valve 11 and the storage injection gate valve 12 are closed, When the directional control valve 13 is opened, both the passages for the pre-mold pressing gate valve 11 and the storage injection gate valve 12 are opened together. Normally, the directional control valve 13 is in an open state. The pre-mold pressing gate valve 11 and the storage injection gate valve 12 are mutually interlocked when one is opened and the other is closed so that the pre-mold pressing gate valve 11 and the storage injection gate valve 12, Thereby achieving selective opening of the pre-machining structure and the injection structure.

Example 7

The difference between the present embodiment and the double extruder type injection machine having different rotational speeds described in the fifth embodiment is that after the injection product is linearly processed in the linear processing structure, To other devices without further transfer to the next process.

Example 8

The difference between the present embodiment and the double extruder-type extruder having different rotational speeds described in the fifth embodiment is that when a double extruder-type extruder having different rotational speeds is machined for an injection product due to the necessity of a structural form, The primary molding is performed directly using the injection machine clamping device 5 without the necessity of pre-processing the injection product through the processing structure.

Example 9

The difference between the present embodiment and the double extruder-type extruder having different rotational speeds as described above is as follows. As shown in FIG. 2, the double extruder-type extruder having different rotational speeds has a double extruder-type mixing structure. The first extruder 24 is moved by the first electric motor 29 and the first extruder 24 ) Is provided with a first input port 26 for inputting the raw material. The second extruder 25 is moved by the second electric motor 28 and the second extruder 25 is provided with a second input port 27 for inputting the fiber material. The second extruder (25) is installed under the first extruder (24). The first extruder 24 is used for melting the raw material. After the raw material is melted, the first extruder 24 is introduced into the second extruder 25 via the first extruder 24. The second extruder 25 is for cutting and melting the fiber material and the screw length of the second extruder 25 is shorter than that of the first extruder 24. The heating temperature of the second extruder 25 is, (24). Since the second extruder 25 and the first extruder 24 are driven using different driving mechanisms, different rotational speeds can be realized. The drive mechanism includes a hydraulic motor, an electric motor, and a pneumatic motor. Since the rotational speed of the second extruder 25 is slower than the rotational speed of the first extruder 24, the number of times of cutting to the fiber material is reduced so that the fiber material in the molded product maintains a longer length.

The second extruder is provided with a feed shoe, a first extruder is provided with a pipe, and the feed shoe and the pipe position correspond to each other so that the raw material is introduced into the second extruder by the first extruder after cutting and melting. Alternatively, the second extruder and the first extruder may be connected in such a manner that the passages are connected to each other.

In particular, the strength of the carbon fiber material itself is easily damaged at high temperatures in the case of carbon fiber rework, and the length of the fibers and the degree of complication of the fibers in the final product affects the strength of the finished carbon fiber article. In order to solve the above problem, it is necessary to reduce the time for the carbon fiber material to be damaged by the high temperature during the mixing process, to adjust the temperature to be lowered during the mixing process of the fiber material, to shorten the cutting time of the fiber material during the mixing process, It is very important to increase the length of the fibers in the finished product through a cutting method or the like.

In this embodiment, a professional extruder for a fiber material is designed and processed, and the fiber material and the raw material are processed through different extruders to ensure the maximum length of the cut fiber material and to be damaged by the high temperature . The double extruder type mixing structure expands the control range of the product processing method and realizes different rotation speeds to melt the raw materials and to mix the fiber materials and the molten raw materials.

Example 10

The difference between the double extruder-type extruder and the extruder-type extruder differing in rotational speed from the present embodiment is that a mixing structure of a multi-extruder is mutually mixed in a double extruder-type extruder having different rotational speeds, May be a multi level progressive mixing type. That is, a corresponding inlet is provided for each stage extruder, and a different material is injected as needed. The rotational speed, length, and heating temperature of each extruder are all different, and the injection molten material in each step directly flows into the next stage extruder.

The mixing type of the plurality of extruders includes two or more extruders at a first level, and the rotational speed, length, and heating temperature of the respective extruders are all different. Further, all the injection molten materials processed in the first level extruder are fed to the next level extruder Can be introduced.

The mixing type of the plurality of extruders may include one extruder at a first level and each of the injection molten materials operated in the extruder may be introduced into a plurality of the next level extruders. The rotation speed, length, and heating temperature of each extruder of the next level extruder are all different.

Different ratios of different types of combinations of the extruder can be used to satisfy different materials, rational arrangement of different processing demands.

Example 11

As shown in FIG. 3, the double extruder-type extruder having different rotational speeds differs from the extruder-type extruder of this embodiment in rotational speed as described above, And a double extruder type mixing structure at the same time.

The double extruder type mixing structure increases the length of the fibers in the finished product by increasing the cut type of the fiber material during the mixing process by applying the specified screw type and reduces the time of damaging the fiber material due to the high temperature in the mixing process, Lowering the temperature required during the mixing process and shortening the cutting time of the fiber during the mixing process. A professional extruder for the fiber material is designed and processed, and the fiber material and the raw material are processed through different extruders to maximize the length of the cut fiber material and to minimize the damage by high temperature . The double extruder type mixing structure expands the control range of the product processing method and realizes different rotation speeds to melt the raw materials and to mix the fiber materials and the molten raw materials.

Since the transition mechanism is capable of integrally processing molding of complex structural injection products by installing the above-mentioned linear machining structure, it is possible to solve the troubles of processing and transporting different kinds of injection molding products in a complicated structure, Mixing ratios are different to prevent wrong result that product structure and strength are inconsistent, and greatly improve processing efficiency for injection molding products of complex structure. It is possible to perform a normal injection step by drawing the pre-processing structural unit under the premise that the injection process is not affected, and at the same time, by molding the injection product to simultaneously perform mold pressing and injection, In the production process, the different mixing structures are mixed, and then each of the mold pressing and injection is repeated to solve the problem of low utilization. Further, since mixing is performed with the same mixing structure, reduction in the amount of the extruder used, lowering of the cost of the equipment, and ensuring consistency of the mixing can be realized, compared with the case of processing each of the mold pressing and the injection. The injector is used in the production of injection molding of a complex structure.

Example 12

The difference between the present embodiment and the double extruder-type extruder having different rotational speeds as described above is as follows. The pressure sensor 21 detects the pressure value of the injection molten material flowing out of the extruder and converts the pressure value into an electric signal to control the pressure in the control unit 22 . The control unit 22 compares the pressure signal with a predetermined value to stop the operation of the electric motor 23 when the pressure exceeds a predetermined value to stop the operation of the extruder 1 so that the pressure due to the continuous outflow of the injection molten material Thereby preventing the excessive increase of the temperature.

The raw materials may be selected from the group consisting of polyamides, polyolefins, thermoplastic polyesters, polycarbonates, high performance engineering plastics or other general purpose resins, polyetheretherketone, polyphenylene sulfide, modified polyphenylene ether or polyetherimide, polyvinyl chloride, Nitrile-butadiene-styrene copolymer, polystyrene or high-impact polystyrene.

Example 13

4, the storage injection / conversion structure includes a buffer accumulator 41, a storage injection hydraulic cylinder 42, a storage injection / A gate valve 43, a storage injection gate valve oil cylinder 44, a guide pipe 45, an injection gate valve 46 and an injection gate valve oil cylinder 47.

As shown in FIG. 5, the buffer accumulator 41 includes an accumulator body 411 and an accumulator plunger 412. The accumulator body 411 has an air-core structure. The accumulator 412 is located inside the accumulator body 411 and the outer diameter of the accumulator 412 is And is mixed with the inner diameter size of the accumulator body 411 at intervals. 6, an annular overflow tank 4111 is installed on the uppermost inner wall of the accumulator body 411, and an overflow pipe 4112 is provided outside the overflow tank 4111, And the overflow tank 4111 collects the injection molten material flowing from the gap between the accumulator plunger 412 and the inner wall of the accumulator body 411. Therefore, the overflow pipe 4112 flows into the waste collection tank to prevent the overflowing material from clogging the device. A heating device for continuously heating the injection molten material is provided outside the buffer accumulator 41 so that the molten injection material always remains in a molten state.

5, a hydraulic cylinder body 421, a storage piston rod 422, and a connecting plate 423 are installed in the storage injection hydraulic cylinder 42. As shown in FIG. The end of the accumulator plunger 412 is connected to the connecting plate 423 located at the top of the storage injection hydraulic cylinder 42 and the connecting portion is located at the center of the connecting plate 423. The storage injection hydraulic cylinder 42 has two hydraulic cylinder bodies 421 symmetrically disposed on both sides of the buffer accumulator 41. A storage piston rod 422 is connected to the interior of the two hydraulic cylinder bodies, and ends of the two storage piston rods 422 are fixedly connected to the connection plate 423, respectively, And is located on both sides corresponding to the connection positions of the lighter plunger 412 and the connection plate 423. The structure is made compact by lowering the height of the device by using a configuration symmetrically provided on the double hydraulic cylinder and symmetrically provided storage piston rod is uniformly applied to the structure, The accumulator is subjected to unbalanced force, which reduces the wear and tear that is caused by the use and extends the service life.

Here, a position measuring device for displaying the jacking height of the accumulator plunger 412 is connected to one hydraulic cylinder body 421. The position measuring device is connected to a sensor to enable real-time remote monitoring of the jerking height of the accumulator plunger 412, and the storage injection hydraulic cylinder is provided with a remote controller for real-time remote monitoring of the storage amount of the buffer accumulator. A position measuring device is connected.

As shown in FIG. 6, the storage injection gate valve 43 includes a storage injection gate valve seat 431 and a storage injection gate valve core 432. A first passage 4311 and a second passage 4312 are provided in the storage injection gate valve seat 431 and the upper portions of the first passage 4311 and the second passage 4312 are all connected to the accumulator body (411). The storage injection gate valve core 432 is provided with a dual through hole 4321 and a tree through hole 4322.

As shown in FIGS. 7 and 8, the dual through-hole 4321 can be switched between a conduction state and a non-conduction state according to the movement of the stored injection gate valve core 432, 4321 draw the injection molten material into the guide pipe 45. The tree passage 4322 can be switched between the three-way state and the anisotropic state according to the movement of the storage injection gate valve core 432. The tree passage 4322 communicates the storage injection gate valve core 432 with the storage injection gate valve seat 431 and the upper portion of the tree passage 4322 is connected to the storage injection gate valve seat 431 Conduction with the second passage 4312, and the lower part becomes conductive with the guide pipe 45 to increase the injection molten material in the three-way state. One end of the tree passage 4322 is connected to the port of the drive valve 35 in the mixing structure and the upper portion is connected to the first passage 4311 provided in the storage injection valve seat 431, And is conducted to the guide pipe 45. By applying this type of storage injection gate valve, the buffer accumulator 41 and the guide pipe 45 are always made conductive. Since the injection molten material has a certain viscosity, the coupling of the two passageways and the buffer accumulator 41 divides the buffer accumulator 41 into two parts in an intangible state, so that the injection molten material is separated into the first passage 4311, And a large number of new materials are placed on the upper portion of the first passage 4311 and the injection molten material is discharged from the second passage 4312 in the non-storage state. At this time, most of the sphere material flows down in the second passage 4312, thereby reducing the accumulation of sphere material in the buffer accumulator.

6, the storage injection gate valve oil cylinder 44 includes a storage injection gate valve oil cylinder body 441 and a storage injection gate valve oil cylinder pusher 442, the storage injection gate valve oil cylinder pusher 442, (442) is connected to the storage injection gate valve core (432), and conducts the storage injection gate valve core (432) to move the conduction state.

The injection gate valve 46 includes an injection gate valve seat 461 and an injection gate valve core 462. When the injection gate valve core 462 is in the same position as in Fig. 7, the injection gate valve 46 is closed and the passage connected thereto is not conducted. When the injection gate valve core 462 is in the same position as in Fig. 9, the injection gate valve 46 is opened, the upper portion is conducted to the guide pipe 45, and the lower portion is conducted to the injection structure.

The injection gate valve oil cylinder 47 includes an injection gate valve oil cylinder body 471 and an injection gate valve oil cylinder pusher 472 which is connected to an injection gate valve core 462 And guides the injection gate valve core 462 to move, thereby realizing the opening and closing of the injection gate valve 46.

The storage injection gate valve 43, the guide pipe 45 and the injection gate valve 46 are each provided with at least one heating device for continuously heating the injection molten material so that the injection molten material always remains in a molten state.

The storage injection gate valve 43 and the injection gate valve 46 are also each provided with a temperature sensor for monitoring the temperature situation in the pipe in real time.

A cooling water pipe is installed in each of the storage injection gate valve oil cylinder body 441 and the injection gate valve oil cylinder body 471. This is a phenomenon in which the body of the cooling water pipe is cooled and leakage oil is generated by deformation of the gasket due to overheating .

In addition to the storage injection conversion structure, a shroud is additionally provided to prevent an operator from accidentally bumping into an image.

Since the mixing structure continuously supplies raw materials during operation, the injection molten material is continuously extruded. However, since the injection structure is an intermittent dynamic state, there are constant injection and dwell times within each molding cycle. Therefore, provision of a temporary storage space for the continuously supplied injection molten metal is required. When the injection molten material is introduced into the storage injection conversion structure, if the filling of the injection structure is completed, the injection gate valve 46 is closed by the injection gate valve oil cylinder 47. At the same time, the storage injection gate valve 43 is moved to the position shown in FIG. 8 by the storage injection gate valve oil cylinder 44. The injection molten material flows into the upper portion after filling the guide pipe 45 and flows into the buffer accumulator 41 through the first passage 4311 to perform temporary storage. If the injection and dwell of the injection structure is completed, the injection gate valve 46 is opened by the injection gate valve oil cylinder 47. At the same time, the storage injection gate valve 43 is moved to the position shown in FIG. 7 by the storage injection gate valve oil cylinder 44. The injection molten material transported from the mixing structure is introduced into the guide pipe 45 via the dual through-hole 4321. At the same time, the injection molten material stored in the buffer accumulator 41 is introduced into the guide pipe 45 via the second passage 4312 and the tree passage 4322 under the pressing action of the storage injection hydraulic cylinder 42 . The injection molten material is discharged from the buffer accumulator 41. However, since the viscosity of the injection molten material is relatively large, a small amount of the injection molten material is discharged from the buffer accumulator 41, As shown in Fig. When a new injection molten material flows into the buffer accumulator 41 from the first passage 4311, a part of the remaining injection molten material is extruded onto the second passage 4312. When the storage cache is completed, some of the remaining injection molten material is discharged via the second passage 4312. [ The circulating and long-standing injection molten material is replaced by a new injection molten material and the injection molten material is exchanged through the two valve passages, thus shortening the time for the old material to remain in the storage injection molding structure.

The storage injection conversion structure can greatly improve the production efficiency in industrial production by providing one temporary storage space for the injection molten material continuously supplied from the mixing structure, and it is possible to prevent the breakage of the equipment caused by repeated shutdown, Thereby preventing waste of energy due to repetitive heating.

The foregoing description is only a description of the present invention as a comparatively preferred embodiment, and the present invention is not limited to these embodiments. It will be understood by those skilled in the art that various changes, modifications, and equivalents may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (8)

A double extruder type extruder having different rotational speeds for mold pressing an injection product to be processed, comprising:
A first extruder provided with a first inlet for injecting a raw material; And
A second extruder located at a lower portion of the first extruder and provided with a second inlet for inputting a fiber material and the inserted fiber material being cut and heated from a position of the second inlet,
Characterized in that the first extruder and the second extruder are driven by drive mechanisms having different rotational speeds,
A double extruder type injection machine having different rotational speeds. The method according to claim 1,
Wherein the feeder is disposed in the second extruder, the feeder is connected to the feeder, and the feeder and the pipe are disposed to correspond to each other so that raw material is fed to the second extruder by the first extruder after cutting and melting, Into the extruder,
A double extruder type injection machine having different rotational speeds. The method according to claim 1,
And a conduction passage for introducing the cut and molten raw material from the first extruder to the second extruder is connected between the second extruder and the first extruder.
A double extruder type injection machine having different rotational speeds. The method of claim 3,
Wherein the rotation speed of the second extruder is slower than the rotation speed of the first extruder.
A double extruder type injection machine having different rotational speeds. The method of claim 3,
Wherein the rotating speed of the second extruder is faster than the rotating speed of the first extruder.
A double extruder type injection machine having different rotational speeds. The method according to claim 1,
Wherein the double extruder type extruder having different rotation speeds further comprises a linear processing structure for performing an initial molding on the injection target product, wherein the linear processing structure includes a die head for manufacturing a blank and a mold preform product Lt; RTI ID = 0.0 > a < / RTI > block press for &
A double extruder type injection machine having different rotational speeds. The method according to claim 6,
Wherein the pre-machining structure is connected to the injector body via a pre-mold pressing gate valve and the pre-mold pressing gate valve is switched to change the flow direction of the injection molten material, And the flow direction of the molten metal is switched.
A double extruder type injection machine having different rotational speeds. The method according to claim 1,
The double extruder type extruder having different rotation speeds further includes an injection conversion structure including a storage injection gate valve for changing the flow direction of the injection molten material,
The storage injection gate valve includes a storage injection gate valve seat provided with a first passage and a second passage for flowing the injection molten material and passed by the first passage, And a storage injection gate valve core for changing the flow state of the injection molten material,
Wherein the storage injection gate valve core has a dual through-hole for switching the conduction state and the non-conduction state according to the movement of the storage injection gate valve core and drawing the injection molten material out of the storage injection gate valve at the time of conduction, Wherein the storage injection gate valve seat and the storage injection gate valve seat are electrically connected to each other in a three-way state and an anisotropic state in accordance with the movement of the storage injection gate valve core, And a tree through hole for receiving the tree.
A double extruder type injection machine having different rotational speeds.

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