KR100261048B1 - Injection type extrude mixing and molding machine - Google Patents

Abstract

PURPOSE: An injection molding type extruding and mix-milling mechanism is provided to perform extrusion mix-milling and injection molding in a single mechanism at the same time without a manufacturing process of a pallet by extruding/mix-milling resin and molding the resin through injection method. CONSTITUTION: An injection molding type extruding and mix-milling mechanism consists of: a spiral grooved barrel type preheat feed unit(4-1) having a gear on a tapered shaft with a compression ratio of 1.2-1.5 and preheating/melting resin; a dulmage type melt unit(4-2) having round grooves with the same distance to melt the preheat molten resin regularly within a short time; a dispersion mixing unit(4-3) splitting relatively large particles into small particles and mix-milling the particles by applying high shear rate and high shear stress to the molten resin; a heat mix-milling unit(4-4) for treating the mixed molten resin, having plural grooves arranged with the same distance to supply the molten resin to a warm current. The molten resin is moved forward by rotation of a screw and filled in the grooves of the heat mix-milling unit. The screw is moved back. When the screw is moved forward, gas is exhausted.

Description

Injection molding and kneading apparatus

The present invention relates to an injection-type extrusion and kneading apparatus, and in particular, by extruding and kneading a predetermined amount of resin and molding a kneaded product by an injection method, extrusion kneading and injection molding can be simultaneously performed in one apparatus without a pellet manufacturing process. An injection extrusion and kneading apparatus is provided.

In the production of plastic moldings, when the performance required as a single polymer cannot be obtained, blends are prepared in order to make up for the drawbacks of each other by using different polymer materials. The method for producing a polymer blend is largely classified into a method of dissolving and blending a thermoplastic resin in a solvent or by melting and mixing the resin while applying heat directly to the thermoplastic resin.

Of the two methods described above, the former method may improve the miscibility of the two polymers by using the property of increasing the solubility of the polymer in the solvent when the solubility of the two polymers and the solvent are similar, but the solvent mixed in the blend Because it has to be removed, it is used only experimentally a lot, but there are many problems in mass production. However, in the latter melt blending method, since the melting temperature of the thermoplastic resin is used, the degree of crystallization of the two polymers is different when the difference between the melting temperature of the two polymers and the viscosity of the flow characteristics is large, and the chemical structure of the two polymers is different. Due to the different polarity and interfacial tension caused, phase separation occurs. In order to prevent such phase separation, a melt blending technique has been developed in the melt blending method such as a processing method using a new additive.

Such a melt processing method of the polymer is largely structurally mixed with a rotating method of the Henschel mixer method, the kneader method by a screw method, a single screw method, a twin screw Can be classified by law.

Among them, in Henschel mixer method, various types of blades are used. Since the laminar flow occurs in the Newtonian flow according to the viscosity difference between different polymers during melting and the functional groups of the polymers, the blend water is lamellar. Having a structure, complete kneading is impossible, and only by slightly modifying the shape of the rotary blade to be used, the kneading effect is slightly increased. As such, the kneader according to the Henschel mixer method is mainly used for the purpose of making the dispersion of additives and the like easier on the resin surface than the kneading of the molten phase.

There is a screw method in which a screw is mounted in a cylinder, which is a general method used when machining with a Henschel mixer in manufacturing a melt blend. Among these screw methods, the kneader method is a method of kneading in a container of a predetermined size, and according to this method, since the continuous process is difficult, when the purpose of the continuous production is to increase the gear ratio of the screw and the resin discharge pressure in the die By means of this, other screw methods that can be forcibly mixed are developed and used. These are the single screw method and the twin screw method.

In the single screw method, when the difference in melt viscosity between different polymers is large, the flow of the resin at the discharge port is laminar, so that a back mixing zone can be set in the screw to improve miscibility. have. In addition, in the twin screw method, heterogeneous polymers are not mixed with each other when melted by forcibly kneading using the gears of two screws, so that the laminar state can be changed into a turbulent state and mixed uniformly.

However, while the twin screw method is effective for producing small quantities of multifunctional high performance blends, a large amount of resin is required and a lot of time and manpower when using a large extrusion apparatus for producing a product. In particular, it is difficult to apply the twin screw method because numerous tests have to be repeated when developing a specific polymer blend. In addition, there is a disadvantage that a large amount of waste occurs after the completion of the experiment to cause environmental problems, it is urgent to develop a new type of kneading and molding apparatus suitable for the development stage of a new polymer blend.

On the other hand, the kneading method of the polymer blend is classified into continuous type (twin screw etc.) and batch type (Henzel mixer) depending on the continuity. In the continuous type, since the miscibility is increased only when the movement time and residence time of the resin in the screw are increased, the length of the cylinder must be increased. In order to improve the miscibility of the blend according to the solubility difference, density difference, viscosity difference, and functional difference, There are disadvantages such as the need to increase the pressure. In the case of the batch type, the melted resin is brought into contact with air to cause oxidation of the resin, and has a disadvantage in that physical properties may be degraded by using the resin for a long time in a stationary state.

In addition, both continuous and batchwise must undergo a multi-step process, including cooling the melt, pelletizing and drying. That is, when preparing a polymer blend using a conventional twin screw, the polymer is kneaded and extruded, the extruded resin is cooled, then pelletized and dried, and the dried pellet is manufactured by using an injection machine. Method of evaluating characteristics is used. The resin used at this time is used in a large amount of about several kilograms, and therefore, the kneading time takes a long time, and deterioration of the resin occurs because heat is applied several times. In particular, even when producing a test piece for the characteristic test, there is a inconvenience to go through a multi-step process including a extrusion process, an injection process, a cooling process, a pelletizing process, a drying process, etc., as well as an extrusion process and a mass production process. Therefore, many studies have been conducted for the design of a polymer blend manufacturing apparatus capable of continuously performing the kneading process and the test piece forming process in one apparatus, excluding the cooling process, pelletizing process, and drying process of the extruded resin.

As an example, proposed US Patent No. No. 5,655,835 (Single screw extruder method and appartus) allows the mixing process to be sufficient by varying the compression ratio of the single screw, and also adjusts the compression ratio of the screw even when there is a difference in specific gravity of the polymer when blending heterogeneous polymers or two or more kinds of polymers. A technique capable of kneading and processing is disclosed.

As another example, U.S. Patent No. No. 5,540,495 (Injection assembly for an injection molding machine) discloses a technique for kneading and injecting a cylinder of a single screw extruder after filling the molten resin in the cylinder without dividing the cylinder into several zones. U.S. Patent No. In 5,645,868 (Drive apparatus an injection unit), a resin supply part and a ball screw are applied to a single screw at the same time so that the resin is supplied and melted when the rotation of the screw is clockwise, and the resin is rotated when the rotation of the screw is counterclockwise. To allow the mixture to mix, and again to eject when the rotation of the screw is clockwise. The technique disclosed in these US patents has the advantage of increasing processing capacity by using a single through.

However, as described above, the single screw method has a problem in that it is not suitable for the preparation of blended products by kneading heterogeneous resins because of poor compatibility.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the extrusion, kneading and injection molding can be simultaneously performed in one apparatus without a pellet manufacturing process by rapidly extruding and kneading a certain amount of resin and molding the kneaded product by an injection method. An object of the present invention is to provide an injection extrusion and kneading apparatus.

Injection-type extrusion and kneading apparatus of the present invention for achieving the above object is a kneading means including a molding means for molding the resin injected into the mold, a screw disposed at the rear end of the molding means to knead the resin supplied from the resin source And a discharge die for discharging the kneaded resin toward the mold, a temperature adjusting means for setting and maintaining the internal temperature of the kneading means at a desired temperature, and hydraulic means for providing the power necessary for the molding means and the rotation of the screw. In the injection molding and kneading apparatus, the screw of the kneading means is preheated in the form of a spiral grooved barrel in which teeth of equal intervals are formed on the tapered shaft so that the compression ratio is 1.2 to 1.5, and preheating and melting the resin supplied from the resin source. Supply unit; A pre-molten molten portion made of a curved groove at equal intervals to melt the preheated molten resin quickly and homogenously; A dispersion mixing part which gives high melt rate and high shear stress to the resin melted in the melt part to break relatively large particles into relatively small particles so as to knead well; A pressurized kneading unit for kneading by kneading the dispersion mixed melt resin; And a plurality of grooves at equal intervals are formed on the front surface of the pressure kneading portion so that the molten resin can be supplied into the turbulent phase. When the molten resin is transferred in the forward direction by the rotation of the screw, the screw is filled in the groove of the pressure kneading portion. When the screw is moved backwards by hydraulic pressure, the gas is discharged.

1 is an overall configuration diagram of an injection-type extrusion and kneading apparatus according to a preferred embodiment of the present invention.

2 is an enlarged front view of the kneading screw in FIG.

Figure 3 (a) is an exploded cross-sectional view showing a structure from a portion of the mold to the pressure kneading portion of the screw in FIG.

FIG. 3 (b) is a left side view of the screw in FIG. 3 (a).

3 (c) is a cross-sectional view taken along the line A-A 'in FIG. 3 (b).

4 (a) is a view showing a laminar flow phase during kneading.

4 (b) shows a turbulent phase during kneading.

* Explanation of symbols for main parts of the drawings

1: mold 2: hopper

3: cylinder 4: screw

4-1: preheat supply part 4-2: melting part

4-3: dispersion mixing part 4-4: heating kneading part

5: discharge die 6: stopper

12: screw speed adjustment knob 13: heater on / off switch

5,15A-15E: Thermostat 16: Motor

17,17A, 17B: Hydraulic Pump 18,18A, 18B: Solenoid Valve

22A, 22B, 22C: Hydraulic cylinder 23: Heating plate

24: horizontal bar 25: vertical bar

26: spring 27: screw speed indicator

28: auto / manual switch 29: auto on / off switch

30: hydraulic pump on / off switch 31: motor on / off switch

33: buzzer 35: up and down switch

36: switch before and after 37: timer

38: Mix Recovery Setter

First, the technical idea of the injection-type extrusion and kneading apparatus of this invention is demonstrated generally.

In the present invention, in order to compensate for the conventional problems, it is possible to reduce the size of the device by applying a semi-batch method of mixing the continuous and the batch type, and by setting a stopper in the discharge die under a certain pressure so as to maximize the resin kneading effect. It can be kneaded. In particular, in order to increase the effect of kneading when kneading under a certain pressure, as described below, grooves are formed in the die surface and the screw surface of the mixing portion to make secondary flow zones so that molten resin can be supplied to the turbulent phase. In the absence of such a secondary flow zone, the rotation time becomes longer when the molten resin is rotated in the same direction between the cone plate and the plane, so that the two phases are different due to functional groups, viscosity differences, and density differences of different resins in the blend. As a result, fine separation occurs and satisfactory kneading is not achieved.

As described above, in the present invention, when the flow of two or more kinds of molten resins is changed from a laminar state to a turbulent state during screw rotation, two or more different kinds of resins are efficiently kneaded in a short time, and the stopper is sufficiently kneaded with different kinds of resins. It is opened to make injection. That is, when a certain amount of raw material is supplied, the molten resin is supplied to the discharge die surface and filled to a certain capacity, that is, the capacity of the product to be injected, and then kneaded under constant pressure for 1 to 5 minutes to open the stopper to inject the molten resin mixture into the mold. . In the case of the continuous process, a certain amount of raw material is supplied again from the hopper at the same time as the injection, and the volume is reduced through the preheating process in the preheating supply unit, and then the resin is gradually transferred to the melting unit and the pressure kneading unit every time the injection is performed.

Hereinafter, with reference to the accompanying drawings will be described in detail an injection-type extrusion and kneading apparatus according to a preferred embodiment of the present invention.

1 is an overall configuration diagram of an injection-type extrusion and kneading apparatus according to a preferred embodiment of the present invention. As shown in FIG. 1, the injection type extrusion / kneading apparatus according to the present invention can be largely divided into a hydraulic part, a temperature control part, a kneading part, and a molding part. The hydraulic unit includes a motor 16 as a power source and two hydraulic pumps 17A and 17B attached to the left and right sides of the motor 16. Among these, the hydraulic pump 17B is used to rotate the screw 4, and after kneading is completed, the screw 4 is advanced back and forth for injection. In this process, the rotation speed of the screw 4 can be adjusted, for example, from 0 to 200 [rpm] according to the characteristics of the molding resin. When the flow control knob 12 is turned clockwise, the rotation speed is increased and the counterclockwise direction is increased. Can be configured to reduce the speed of rotation. Reference numeral 27 is an indicator indicating the rotation speed of such a screw 4.

The other hydraulic pump 17A is used to coalesce and transfer the mold 1 and to bond and detach the mold 1 and the discharge die 5. In this process, the pressure adjustment of the mold 1 may be performed by the upper and lower solenoid valves 18A, and the pressure adjustment necessary for the adhesion and detachment of the mold 1 and the discharge die 5 may be performed by the solenoid valve 18B. Can be performed. Reference numeral 35 denotes a switch for operating the solenoid valve 18A, and 36 denotes a switch for operating the solenoid valve 18B.

Next, the structure of a kneading part is demonstrated, The screw 4 and the kneading mechanism are provided in the cylinder 3 of a predetermined shape. FIG. 2 is an enlarged front view of the kneading screw in FIG. As shown in FIG. 2, the entire portion of the screw 4 from the discharge die 5 to the hopper 2 may be divided into four zones. First, the preheat supply part 4-1, which is the front part of the screw 4, should be able to supply the resin provided through the resin supply hopper 2 into the cylinder 3 and reduce the volume of the resin to lower the porosity. Therefore, it is preferable to form a spiral grooved barrel so as to compress the resin. And the gear space | interval 1 of a gear is made the same, and the taper 4-1a is formed in the axis | shaft, and it is comprised so that compression ratio may be set to 1.2-1.5. Next, the molten portion 4-2 located at the center of the screw 4 is in the form of a dulmage so that when the preheated resin is supplied from the preheat supply portion 4-1, the molten portion 4-2 can be quickly homogenized and melted. Consists of. The front part of the molten portion 4-2 is a dispersion mixing portion 4-3, that is, a region in which the molten resin is subjected to high shear rate and high shear stress, so that relatively large particles can be broken into small particles so that mixing and kneading can be performed well. It is configured to.

FIG. 3 (a) is an exploded cross-sectional view showing the structure from a part of the mold to the heating kneading portion of the screw in FIG. 1, and FIG. 3 (b) is a left side view of the screw in FIG. 3 (c) is a sectional view taken along the line AA ′ in FIG. 3 (b). 4 (a) shows the laminar phase during kneading, and FIG. 4 (b) shows the turbulent phase during kneading. As shown in FIG. 3, the end face of the pressure kneading part 4-4, which is the rearmost part of the screw 4, is parallel to the longitudinal section 3-a of the cylinder 3, and as a result. It is configured to be parallel plate kneading. In order to improve the miscibility even when parallel plane kneading, grooves 4-4a are made in the end surface of the heating kneading section 4-4 to remove the flow of resin. It is comprised so that it may be changed into the turbulence of FIG. 4 (b) from laminar flow of FIG. 4 (a).

In addition, as described above, since the preheat supply part 4-1 is in the form of a spiral grooved barrel, the pressure of the pressure kneading part 4-4 is increased while the resin is advanced as the number of revolutions increases, and thus the resin during injection. The jungle of the will be reduced. As described above, the pressure kneading unit 4-4 is provided with a groove 4-4a such as a flute, so that resin introduced into the groove 4-4a can form a secondary flow when the screw is rotated. The angle θ between the contour surface of the groove 4-4a and the longitudinal cross section of the heating kneading portion 4-4 is 3 ° to 12 °, preferably 5 ° to 8 ° so that the resin is ejected at the time of injection. It is desirable to be able to collect in the die 5. Reference numeral 6 denotes a stopper for blocking the discharge port of the discharge die 5, and reference numeral 5a denotes an access hole through which the stopper 6 enters and exits. When the stopper 6 is opened, the discharge die 5 and the screw 4 can be combined.

Next, the temperature control in the mold (1) and the cylinder (3) was configured to be separately controlled in a total of five parts including the discharge die (5), reference number 15E to adjust the temperature of the mold (1) Is a knob for adjusting the temperature of the discharge die 5, and 15A-1C is a knob for adjusting the temperature of each part in the cylinder. Temperature can be suitably adjusted in the range of 0-350 [degreeC].

Reference numeral 28 denotes an automatic / manual switching switch, and the apparatus of the present invention is configured to operate automatically or manually, and manual operation is performed when the optimum conditions are to be established by examining the processing conditions of the heterogeneous resin blend. Mainly available. That is, in the case of an unknown resin blend which does not know the injection condition, the molding condition is examined with the switch 28 in the 'manual' position, and when the injection condition is known, the switch 28 is in the 'automatic' position from this point on. Can be used to continuously produce molded products or test specimens. Reference numeral 13 denotes a heater on / off switch, and 31 denotes an on / off switch of the motor 16. Reference numeral 26 denotes a spring for allowing the screw 4 to maintain the pressure in the forward state. Reference numeral 29 denotes an automatic on / off switch, 30 denotes a hydraulic pump on / off switch, 37 denotes a kneading time setting timer, 23 denotes a heating plate, and 33 denotes a buzzer indicating the arrival of the set time. Reference numeral 38 denotes a mixing number setter for setting the mixing number in automatic operation. Reference numeral 22A denotes a hydraulic cylinder for metal mold transfer, 22B denotes a hydraulic cylinder for upper and lower molds, 22C denotes a hydraulic cylinder for injection, 24 denote horizontal bars, and 25 denote vertical bars.

Hereinafter, the operation of the injection molding and kneading apparatus of the present invention will be described in detail.

First, in the case of a blend of an unknown resin that does not know the injection conditions, the state of the switch 28 should be 'manual'. After that, the respective temperature adjusting knobs 15A-l5E are operated to meet the characteristics of the processed resin. The temperature of each zone of the mold 1 and the cylinder 3 is set, and the heater on / off switch 13 is turned on to raise the temperature of each zone to the set temperature. In this way, when the temperature of each zone is raised to the set temperature, the hydraulic pump operating switch, that is, the motor on / off switch 31 is turned on to operate the hydraulic pump 17B. When the hydraulic pump 17B is operated, the screw 4 ) Rotates. At this time, by operating the flow rate adjusting knob 12 to fix the rotational speed of the screw (4) appropriately to the processing resin composition, one injection amount is supplied through the hopper (2). Next, the injected resin is transferred to the melting part 4-2 while the volume is reduced through the preheating process in the preheating supply part 4-1 in the cylinder 3.

In this way, when the primary injected resin is fed and supplied to the molten portion 4-2, the next injection amount of the next round is supplied to the preheat supply portion 4-1 again, and at the same time, the primary injected resin is melted portion 4 It is conveyed and supplied to the pressure kneading part 4-4 via -2). In the pressure kneading section 4-4, a spring pressure, for example 150 [Kg / cm ² ], is applied to maintain a constant pressure, that is, a pressure (holding pressure) in a state where the screw 4 is advanced. As the screw 4 is rotated, the molten resin is brought into contact with the kneading surface.

After the resin filled in the pressure kneading portion 4-4 is sufficiently kneaded, the mold operation switch 35 is operated to engage the mold 1, and then the advance switch 36 is operated to eject the mold 1. After contacting by advancing to the end of the die 5, the stopper 7 is opened, the screw 4 is advanced, and the resin filled in the pressure kneading portion 4-4 is injected into the mold 1. In this way, after the injection to the primary injection is completed, the holding pressure is applied by the force of the resin advance and the pressure of the spring 26 by the continuous rotation of the screw (7), followed by the holding pressure to the molten portion (4-2) Resin supplied from is transferred to the pressure kneading part 4-4, and is filled.

Next, after a predetermined time, for example, 30 seconds to 3 minutes, the injected resin is solidified from the inlet of the mold 1, after which the stopper 6 is blocked and the mold 1 is detached (transfer time 30 seconds to 1 minute) to obtain a sample. When the stopper 6 is blocked, the resin is continuously filled in the pressure kneading portion 4-4 by the resin supplied from the preceding melting portion 4-2. At this time, the screw 4 is reversed by a predetermined distance. Next, the resin is filled by the holding pressure of the spring 26. When the resin thus filled is completely kneaded, it can be injected continuously in the same manner.

As described above, the injection-type extrusion and kneading apparatus of the present invention is used to examine all the conditions for the kneading state of the resin composition, that is, injection pressure, rotation conditions or temperature conditions, or by extrusion, when using pellet production as a main purpose, 'manual' It can be set and operated. At this time, if the screw 4 is advanced toward the discharge die 5 and then the resin composition is continuously supplied, the resin discharged from the discharge die 5 is pelletized. It is kneaded well as it was processed.

When the apparatus of the present invention is switched to 'automatic', each of the temperature adjusting knobs 15A-15E is operated to set the temperature in the mold 1 and the cylinder 3 to a temperature suitable for injection molding of the resin composition. In this state, when the heating plate 23 reaches the set temperature, the hydraulic pump on / off switch 30 is automatically activated. Next, the injection condition is input. First, the desired mixing number is input by operating the mixing number setter 38 and the kneading time 37 is input by operating the timer 37 to operate the hydraulic pump 30. The screw 4 starts to rotate. The rotation speed of the screw 4 can be changed by operating the flow control knob 12 as mentioned above. After adjusting the rotation speed of the screw (4) in this way by switching the state of the automatic on / off switch 29 to "on" is automatically operated in the same order as in the "manual". In this process, when the mold 1 is matched, the buzzer 33 sounds in consideration of safety. In the case of automatic operation, the mixing of the screw 4 is carried out for a predetermined number of times during the kneading while the gas is removed several times, and then mixed continuously for a set time. When the set time is completed, the buzzer 33 is completed. It will ring. Next, after the buzzer 33 rings, the stopper 6 is opened. At this time, the switch 28 in the 'auto' position is switched to 'manual' and the switch 36 is placed in the 'forward' position. 4) advances and the kneaded resin composition is injected into the mold 1. Thereafter, injection is continuously performed in the same manner as in the 'manual' operation.

In the injection-type extrusion and kneading apparatus of the present invention as described above, it is possible to quickly prepare blends by mixing a certain amount of heterogeneous resins and to evaluate the characteristics thereof. The amount of resin used is 20 [g] or more and 1,000 [g]. It can be used to, and even the use of a small amount of the resin of about 30 [g] to 40 [g] can be kneaded conditions and injection molding evaluation of the material can reduce the amount of raw materials used and evaluation time. In particular, in the case of blending and testing additives in polymer blends in order to develop new additives, the effect can be quickly evaluated and examined even with a small amount of additives.

The injection-type extrusion and kneading apparatus of the present invention is not limited to the above-described embodiments, and can be variously modified and implemented within the range permitted by the technical idea of the present invention.

According to the injection-type extrusion and kneading apparatus of the present invention as described above, in kneading different polymer materials or mixing additives, vortices are generated during the kneading process to improve miscibility, and then injection into a mold to prepare test pieces. As a result, it is possible to quickly evaluate the properties of the blends with a small amount of resin material, and to prepare incompatible polymer blends through a kneading process and an injection molding process. There is no need to go through a drying process and a separate injection process, thereby reducing costs and working time.

In addition, since the injection process is possible in the extrusion device itself, the efficiency of the work can be doubled and the installation space can be reduced, and since only a small amount of resin raw material is used, raw material cost is reduced, thereby reducing the degree of environmental pollution.

Claims (6)

Molding means for molding the resin injected into the mold, kneading means including a screw disposed at a rear end of the molding means for kneading the resin supplied from the resin source, a discharge die for discharging the kneaded resin toward the mold, and the kneading An injection-type extrusion and kneading apparatus comprising: temperature control means for setting and maintaining an internal temperature of the means at a desired temperature; and hydraulic means for providing power required for the molding means and power for rotation of the screw. The screw of the means comprises: a preheat supply in the form of a spiral grooved barrel in which teeth of equal intervals are formed on the tapered shaft so as to have a compression ratio of 1.2 to 1.5 so as to preheat and melt the resin supplied from the resin source; A dulgeme-shaped molten portion made of curved grooves at equal intervals so that the preheated and molten resin can be rapidly homogenized and melted; A dispersion mixing unit which gives high melt rate and high shear stress to the resin melted in the melter so as to break relatively large particles into relatively small particles and mix well; A pressure kneading unit configured to pressurize and knead the dispersion-mixed molten resin; And a plurality of grooves at equal intervals are formed on the front surface of the pressure kneading unit so that the molten resin can be supplied in a turbulent phase, and the molten resin is transferred in the forward direction by the rotation of the screw to fill the grooves of the pressure kneading unit. The screw is retracted, the injection-type extrusion and kneading apparatus characterized in that the gas is discharged when the screw is advanced by the hydraulic pressure. The hydraulic pump of claim 1, wherein the hydraulic means comprises a motor and two hydraulic pumps rotated by the motor, the one hydraulic pump being used to rotate the screw of the kneading means at a variable speed, and the other hydraulic pump. Is an injection type extrusion and kneading apparatus, which is used for contacting and separating the mold and the transfer die, and the mold and the discharge die. 3. The method of claim 2, wherein the end face of the cylinder and the end face of the pressurized kneading portion are parallel to each other so that parallel kneading may be possible. Or, injection molding extrusion and kneading apparatus characterized in that after the injection of the molten resin to maintain a holding pressure by raising a predetermined pressure by the rotation of the screw. The injection type extrusion method according to claim 3, wherein the molten resin is collected in the discharge die during injection by using an angle between 3 ° and 12 ° between the longitudinal cross section of the pressure kneading unit and the contour of the groove. Kneading device. The injection molding extrusion and kneading according to claim 4, wherein the temperature adjusting means is configured to separate and adjust the temperature of the mold and the cylinder into four parts within a range of 0 [deg.] C to 350 [deg.] C. Device. The injection type extrusion and kneading apparatus according to any one of claims 1 to 5, wherein the apparatus is capable of automatically and manually operating, and also enables a continuous process.