WO2021068479A1 - Plasticizing power and injection power synergistic high-performance injection molding machine - Google Patents

Abstract

Disclosed is a plasticizing power and injection power synergistic high-performance injection molding machine, comprising a casing, a barrel, a screw, a pressure sensor, and a power system. The power system comprises a sleeve, a plasticizing drive member, a transmission member, a connection member, a nut, and an injection drive member; the transmission member is a double-headed screw that has threads that rotate in opposite directions, one threaded section of the double-headed screw matches an inner thread pair of the sleeve, the other threaded section thereof matches an inner thread pair of the nut, and the end part of the other threaded section emerges from the outer end part of the nut. By means of the joint synergy of the different rotation speeds and rotation directions of the sleeve and the nut, the present invention can drive the double-headed screw to move linearly or rotationally to drive the screw to move synchronously. Therefore, the rated power of a motor in an injection unit is greatly reduced as compared to an existing injection molding machine. At the same time, the present invention has a compact structure, and moving parts thereof have little inertia. The present invention responds quickly, can effectively expand the injection molding process window, and improve product stability and yield.

Description

Plasticizing power and injection power synergistic high-efficiency injection molding machine Technical field

The invention belongs to the field of injection molding machine preparation, and specifically relates to a high-efficiency injection molding machine with a synergy of plasticizing power and injection power.

Background technique

Injection molding machine, also known as injection molding machine or injection machine. It is the main molding equipment for making thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molding dies. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it shoot out and fill the mold cavity.

Therefore, the process of plastic injection molding mainly includes a plasticizing process, a loosening process and an injection process. In the plasticizing process, the screw is mainly retreated and rotates around its axis to push the melt to the discharge end of the barrel; The loosening process mainly retreats to release the pressure to ensure that the melt does not leak from the nozzle; the injection process mainly pushes the screw forward to extrude the melt from the nozzle. In other words, the screw retreats while rotating during the process; the screw retreats linearly (not rotating) during the loosening process; the screw moves straight forward (not rotating) during the injection process.

However, the current injection molding machine equipment in the industry has a low utilization rate of the motor during the injection process and the plasticization process, and the power for plasticization and the power for injection work relatively independently. When plasticizing, The plasticizing motor is basically in a high-load or even full-load working state. At this time, the injection motor only provides a small back pressure and is basically in a no-load working state; when injecting, the injection motor is in a full-load working state, while the plasticizing motor It is basically in a no-load working state. Therefore, in order to realize the above-mentioned plastic injection molding, the selected plasticizing motor and injection motor require higher rated power, so the cost of the injection molding machine is also relatively high. For this reason, some manufacturers have already thought of combining plasticizing power and injection power to complete the entire injection molding process together, thereby reducing the rated power of the power output and reducing the cost. However, in actual operation, the structure is often complicated and difficult. Control, unable to meet market demand.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved plasticizing power and injection power synergistic high-efficiency injection molding machine.

In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

A plasticizing power and injection power synergistic high-performance injection molding machine, which includes:

chassis;

A barrel, which includes a barrel with a cavity inside and communicating with the casing from one end, and a nozzle at the other end of the barrel, wherein the barrel is provided with a plastic material inlet;

Screw, which extends along the length of the barrel;

Pressure Sensor;

The power system is used to drive the screw to rotate around its own axis and move linearly along its length,

In particular, the power system includes a sleeve whose center line coincides with the shaft axis of the screw and is arranged in the casing through a rotating connection member, a plasticizing drive member that drives the sleeve to rotate around its own axis, and a plasticizing drive member that passes through the sleeve. The transmission part, the connection part used to connect the transmission part and the end of the screw away from the extrusion, the nut that is arranged in the casing by rotating the connection piece and one end emerges from the end where the casing is away from the barrel, and is arranged in The outer end of the nut and the injection driver that drives the nut to rotate around its own axis. The transmission component is a double-headed screw with opposite threads. One threaded section of the double-ended screw is matched with the inner thread pair of the sleeve, and the other threaded section Cooperate with the inner thread pair of the nut, and the end of the other thread section emerges from the outer end of the nut. Under the cooperation of the sleeve and the nut to rotate to each other, the double-ended screw is driven to move linearly or/and retreat to the outer end of the nut式转。 Type rotation.

Preferably, the double-ended screw includes a first threaded section matched with the sleeve and a second threaded section matched with the nut, wherein the first threaded section and the second threaded section are fixedly connected from one end, the first threaded section and the second threaded section The axis of the segment is collinear and coincides with the axis of the screw. That is, the first threaded section and the second threaded section are located on the same component.

Further, the pitch of the first threaded section is greater than the pitch of the second threaded section, and the pitch of the first threaded section is N times the pitch of the second threaded section, where N≧2 and is an integer. This setting is suitable for different types of injection molding machines, under different pitches, in order to achieve different rotation speeds of the nut and sleeve to adjust the movement state of the double-headed screw.

According to a specific implementation and preferred aspect of the present invention, a connecting flange connected to the plasticized driving member is further provided on the outer periphery of the sleeve, and the power system further includes two ends connected between the connecting flange and the connecting part and the sleeve The elastic member arranged on the outer periphery of the double-headed screw, wherein when the connecting member rotates and retreats to the inside of the casing or recedes linearly to the inside of the casing, the elastic member is in a state of compression and deformation; when the connecting member moves to the outside of the casing, the elastic member is in Restore the deformed state.

Preferably, the elastic member is a spring, and both ends are fixed on the flange connecting the cap and the sleeve, wherein the spring is compressible or/and twistable.

Specifically, the connecting component is a fixed flange, and the inner end of the double-ended screw is fixedly connected with the end of the screw away from the injection end.

According to another specific implementation and preferred aspect of the present invention, the casing lining is detachably provided inside the casing, and the sleeve and the nut are respectively rotatably arranged on the casing lining through a rotating connection piece, wherein the rotation connection piece is Bearing.

Preferably, the pressure sensor is arranged between the end of the casing lining away from the barrel and the end of the casing close to the injection driver.

Specifically, the end of the casing away from the barrel forms a stepped cavity, the casing lining is stuffed into the stepped cavity, and the casing lining forms a matching first and second inner cavity, wherein the first The diameter of the inner cavity is larger than the diameter of the second inner cavity, the bearings are respectively arranged in the first inner cavity and the second inner cavity, and the sleeve and the nut are rotatably arranged relative to the inner lining of the casing.

Preferably, the plasticizing drive member includes a plasticizing gear arranged concentrically with the sleeve, a plasticizing transmission member for driving the plasticizing gear to rotate, and a plasticizing motor.

Preferably, the injection driving member includes an injection gear sleeved on the outer end of the nut and arranged concentrically with the nut, an injection transmission member for driving the rotation of the injection gear, and an injection motor.

In addition, a cooling jacket is provided at the end of the casing and the outer circumference of the barrel, and the cooling jacket is provided with a feeding hole communicating with the plastic material inlet.

Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

The invention uses the joint coordination of the sleeve and the nut with different rotation speeds and rotations to drive the double-headed screw to drive the screw to move synchronously. Therefore, the rated power of the motor of the injection unit is significantly lower than that of the existing injection molding machine, and at the same time , Compact structure, small inertia of moving parts, fast response, can effectively expand the injection molding process window, improve product stability and yield.

Description of the drawings

Figure 1 is a schematic cross-sectional view of the structure of the injection molding machine of the present invention (in the process of plasticizing or loosening);

Figure 2 is a schematic cross-sectional view of the structure of the injection molding machine of the present invention (in the injection process);

Among them: 1. Case;

2. Material barrel; 20, barrel; 20a, plastic material inlet; 200, cavity; 21, nozzle;

3. Screw;

4. Power system; 40, sleeve; 41, plasticized drive part; 410, plasticized gear; 42, transmission part; 421, first thread section; 422, second thread section; 43, connecting part; 44, nut 45. Injection drive part; 450. Injection gear; 46. Connecting flange; 47. Elastic part (spring); z. Rotating connection part (bearing);

5. Pressure sensor;

6. Shell lining; q1, the first cavity; q2, the second cavity;

7. Cooling jacket; 7a. Feed hole.

Detailed ways

In order to make the above objectives, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to fully understand this application. However, this application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "Radial", "Circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the pointed device or The element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, it can be the internal connection of two components or the interaction relationship between two components, unless otherwise specified The limit. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may be indirectly through an intermediary. contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than the second feature. The “below”, “below” and “below” of the second feature of the first feature may be that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or a central element may also be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only, and do not mean the only implementation.

As shown in FIG. 1, the plasticizing power and injection power synergistic high-performance injection molding machine of this embodiment includes a casing 1, a barrel 2, a screw 3, a power system 4, and a pressure sensor 5.

Specifically, the barrel 2 includes a barrel 20 with a cavity 200 inside and communicating with the casing 1 from one end, and a nozzle 21 at the other end of the barrel 20, wherein the barrel 20 is provided with a plastic material inlet 20a.

The screw 3 extends along the length of the barrel 2 and is matched with the cavity 200 of the barrel 20.

The power system 4 is used to drive the screw 3 to rotate around its own axis and move linearly along its length.

In this example, the power system 4 includes a sleeve 40 whose center line coincides with the axis of the screw 3 and is arranged in the casing 1 through a rotating connector z, and a plasticizing drive member 41 that drives the sleeve 40 to rotate around its own axis. , The transmission part 42 passing through the sleeve 40, the connecting part 43 for connecting the transmission part 42 and the screw 3 away from the extruding end, is arranged in the casing 1 by rotating the connecting piece z, and one end is free from A nut 44 that emerges from the end of the casing 1 away from the barrel 2 and an injection driver 45 that is arranged at the outer end of the nut 44 and drives the nut to rotate around its own axis.

The transmission component 42 is a double-headed screw with opposite threads. The double-headed screw includes a first threaded section 421 matched with the inner thread pair of the sleeve 40, and a second threaded section 422 matched with the inner thread pair of the nut 44, wherein the first The threaded section 421 and the second threaded section 422 are fixedly connected from one end, and the axis lines of the first threaded section 421 and the second threaded section 422 are collinear and coincide with the axis of the screw 3. In other words, the first threaded section 421 and the second threaded section 422 are provided on the same component.

In this example, the pitch of the first threaded section 421 is 4 times the pitch of the second threaded section 422. In this way, under different pitches, different rotation speeds of the nut 44 and the sleeve 40 are used to adjust the movement state of the double-headed screw.

A connecting flange 46 connected to the plasticizing drive member 41 is also provided on the outer periphery of the sleeve 40. The power system also includes two ends connected between the connecting flange 46 and the connecting part 43 and sleeved on the outer periphery of the double-ended screw. The elastic member 47, wherein when the connecting member 43 rotates and retreats to the inside of the casing 1, or recedes linearly to the inside of the casing 1, the elastic member 47 is in a compressed and deformed state; when the connecting member 43 moves to the outside of the casing 1, the elastic member 47 47 is in a state of restoring deformation.

In this example, the elastic member 47 is a spring, and both ends are fixed on the connecting member 43 and the connecting flange 46, wherein the spring can be compressed or/and twisted.

Specifically, the connecting member 43 is a fixed flange, and fixedly connects the inner end of the double-ended screw with the end of the screw 3 away from the injection.

The casing lining 6 is detachably arranged inside the casing 1, and the sleeve 40 and the nut 44 are respectively rotatably arranged on the casing lining 6 via a rotating connection piece z, wherein the rotation connection piece z is a bearing.

The end of the casing 1 away from the barrel 2 forms a stepped cavity, the casing lining 6 is stuffed into the stepped cavity, and the casing lining 6 forms a matching first inner cavity q 1 and a second inner cavity q2. , The diameter of the first inner cavity q1 is greater than the diameter of the second inner cavity q2, the bearings are respectively arranged in the first inner cavity q1 and the second inner cavity q2, the sleeve 40 and the nut 44 rotate relative to the casing lining 6 Set up.

The plasticizing drive member 41 includes a plasticizing gear 410 arranged concentrically with the sleeve 40, a plasticizing transmission member for driving the plasticizing gear 410 (not shown in the figure, but it is not difficult to think of) and a plasticizing motor (not shown in the figure) , But it's not hard to think of).

In this example, the plasticized gear 410 and the sleeve 40 are rigidly connected by a connecting flange 46 (fixed connection)

The injection driving member 45 includes an injection gear 450 sleeved on the outer end of the nut 44 and arranged concentrically with the nut 44, an injection transmission member for driving the injection gear 450 (not shown in the figure, but it is not difficult to think of) and an injection motor (Figure Not shown in, but it is not difficult to think of).

The pressure sensor 5 is arranged between the end of the casing lining 6 away from the barrel 2 and the end of the casing 1 close to the injection driver 45. Among them, the pressure sensor 5 can control the movement state of the plasticizing motor and the injection motor according to the set value.

In addition, the end of the casing 1 and the outer periphery of the barrel 2 are also provided with a cooling jacket 7 that can cool the melt just injected into the barrel 2, wherein the cooling jacket 7 is provided with a plastic material inlet 20a connected to it. Through the feed hole 7a.

The implementation process of this implementation is as follows:

1. Plasticizing process:

As shown in FIG. 1, the melt is injected into the barrel 2 from the feeding hole 7a and the plastic raw material inlet 20a, and the plasticizing motor drives the plasticizing gear 410 to rotate, thereby driving the sleeve 40 to rotate, and the injection motor driving the injection gear 450 to rotate at the same time , So as to drive the nut 44 to rotate. When the sleeve 40 and the nut 44 rotate in opposite directions and the rotation speed is different, the force formed by the double-ended screw in the axial direction is zero, and the force in the radial direction drives the double-ended screw. The outer end retreats to the outside of the nut 44, that is, at this time, the double-ended screw produces a rotational movement under the cooperative action of the sleeve 40 and the nut 44, and at the same time retreats (moves to the right) along the axial direction of the screw 3, such a Then, the molten material moves to the front end of the barrel 2 under the reverse push of the screw 3, and the spring 46 is compressed and deformed to store pressure, and at the same time, the torsion deformation is restored to provide a part of the plasticizing torque.

2. The loosening process (the state is similar to Fig. 1, and the drawings are omitted here):

After completing the above-mentioned plasticizing step, the plasticizing motor drives the plasticizing gear 410 to rotate, thereby driving the sleeve 40 to rotate; at the same time, the injection motor drives the injection gear 450 to rotate, thereby driving the nut 44 to rotate, and the sleeve 40 and the nut 44 rotate in opposite directions. Under different conditions of rotation speed, the force of the double-headed screw in the radial direction is zero. The force formed in the axial direction drives the double-headed screw to move backward along the linear direction, that is, the double-headed screw is in the sleeve at this time. The barrel 40 and the nut 44 do not rotate under the cooperative action, but retreat in the axial direction (moving to the right in the figure), which in turn drives the screw 3 to recede linearly to achieve relaxation, and at the same time, the spring 46 is further compressed.

3. Injection process:

As shown in FIG. 2, after the above-mentioned loosening is completed, the reverse rotation of the injection gear 450 by the injection motor drives the nut 44 to reverse rotation, and the plasticization motor drives the plasticization gear 410 to reverse rotation, thereby driving the sleeve The barrel 40 reacts. When the rotation of the sleeve 40 and the nut 44 are opposite and the rotation speed is different, the radial force of the double-headed screw is zero, and the force formed in the axial direction is all to the left. The sleeve 40 and the nut 44 do not rotate under the cooperative action, but move to the left along the axial direction, thereby ejecting the melt from the nozzle. At this time, the spring 46 recovers from deformation to provide a part of the injection pressure.

In summary, the present invention drives the linear or rotational movement of the double-head screw to drive the screw to move synchronously through the joint coordination of the sleeve and the nut with different rotation speeds and rotations. Therefore, the rated power of the motor of the injection unit is significantly lower than that of the existing injection molding machine. At the same time, the compact structure, small inertia of moving parts and fast response can effectively expand the injection molding process window and improve product stability and yield.

The present invention has been described in detail above, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it, but it cannot limit the scope of protection of the present invention. Whatever is done in accordance with the spirit of the present invention, etc. The effect changes or modifications shall be covered by the protection scope of the present invention.

Claims (13)

A plasticizing power and injection power synergistic high-performance injection molding machine, which includes: chassis; A barrel, which includes a barrel with a cavity inside and communicated with the casing from one end, and a nozzle at the other end of the barrel, wherein the barrel is provided with a plastic material inlet; A screw, which extends along the length of the barrel; Pressure Sensor; A power system, which is used to drive the screw to rotate around its own axis and move linearly along its length, Its characteristics are: The power system includes a sleeve whose center line coincides with the axis of the screw shaft and is arranged in the casing through a rotating connection member, a plasticizing drive member that drives the sleeve to rotate around its own axis, and the sleeve The transmission component passing through the inside, the connecting component used to connect the transmission component and the end of the screw away from the extrusion, are arranged in the casing by rotating the connection piece, and one end is away from the casing The nut emerging from the end of the barrel, the injection driving part that is arranged at the outer end of the nut and drives the nut to rotate around its own axis, wherein the transmission component is a double-ended screw with opposite threads Screw, one thread section of the double-ended screw is matched with the inner thread pair of the sleeve, and the other thread section is matched with the inner thread pair of the nut, and the end of the other thread section emerges from the outside of the nut The end part is coordinated by the rotation of the sleeve and the nut to drive the double-headed screw to move linearly or/and retreat to the outer end of the nut. The double-headed screw includes The first threaded section matched with the sleeve and the second threaded section matched with the nut, wherein the axis lines of the first threaded section and the second threaded section are collinear and are aligned with the axis of the screw Coincident; the pitch of the first threaded section is greater than the pitch of the second threaded section, and the first threaded section pitch is N times the pitch of the second threaded section, where N≥2 and an integer ； A connecting flange connected to the plasticized driving member is also provided on the outer periphery of the sleeve, and the power system further includes two ends connected between the connecting flange and the connecting member and sleeves. The elastic member arranged on the outer periphery of the double-headed screw, wherein when the connecting member rotates and retreats to the inside of the casing or recedes linearly to the inside of the casing, the elastic member is in a state of compression and deformation; When the connecting member moves to the outside of the casing, the elastic member is in a state of restoring deformation; The connecting component is a fixed flange, and the inner end of the double-ended screw is fixedly connected with the end of the screw away from the injection; An organic casing lining is detachably arranged inside the casing, and the sleeve and the nut are respectively rotatably arranged on the casing lining through the rotating connecting piece, wherein the rotating connecting piece For the bearing; The pressure sensor is arranged between the end of the casing lining away from the barrel and the end of the casing close to the injection driver; The end of the casing away from the barrel forms a stepped cavity, the casing lining is stuffed into the stepped cavity, and the casing lining forms a matching first inner cavity And a second inner cavity, wherein the diameter of the first inner cavity is greater than the diameter of the second inner cavity, the bearings are respectively arranged in the first inner cavity and the second inner cavity, and the The sleeve and the nut are rotatably arranged relative to the inner lining of the casing; The plasticizing drive member includes a plasticizing gear arranged concentrically with the sleeve, a plasticizing transmission member for driving the plasticizing gear, and a plasticizing motor; The injection driving member includes an injection gear sleeved on the outer end of the nut and arranged concentrically with the nut, an injection transmission member for driving the injection gear, and an injection motor. A plasticizing power and injection power synergistic high-performance injection molding machine, which includes: chassis; A barrel, which includes a barrel with a cavity inside and communicated with the casing from one end, and a nozzle at the other end of the barrel, wherein the barrel is provided with a plastic material inlet; A screw, which extends along the length of the barrel; Pressure Sensor; A power system, which is used to drive the screw to rotate around its own axis and move linearly along its length, It is characterized in that: the power system includes a sleeve whose center line coincides with the axis of the screw shaft and is arranged in the casing through a rotating connection member, a plasticizing drive member that drives the sleeve to rotate around its own axis, and a self The transmission component passing through the inside of the sleeve, the connecting component used to connect the transmission component and the end of the screw away from the extrusion, are arranged in the casing by rotating the connecting piece, and one end is free from the A nut emerging from the end of the casing away from the barrel, an injection driving part that is arranged at the outer end of the nut and drives the nut to rotate around its own axis, wherein the transmission component is a threaded direction In the opposite double-headed screw, one threaded section of the double-headed screw is matched with the inner thread pair of the sleeve, and the other threaded section is matched with the inner thread pair of the nut, and the end of the other threaded section emerges. The outer end of the nut is coordinated by the rotation of the sleeve and the nut to drive the double-ended screw to move linearly or/and retreat to the outer end of the nut to rotate. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 2, characterized in that: the double-ended screw includes a first threaded section matched with the sleeve, and a first threaded section matched with the nut Two threaded sections, wherein the axis of the first threaded section and the axis of the second threaded section are collinear and coincide with the axis of the screw. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 3, wherein the pitch of the first threaded section is greater than the pitch of the second threaded section, and the first thread The pitch of the segment is N times the pitch of the second thread segment, where N≥2 and is an integer. The plasticizing power and injection power synergistic high-efficiency injection molding machine according to claim 2, characterized in that: a connecting flange connected with the plasticizing drive part is further provided on the outer periphery of the sleeve, and the The power system also includes an elastic member with two ends connected between the connecting flange and the connecting member and sleeved on the outer circumference of the double-ended screw, wherein when the connecting member rotates and moves toward the inside of the casing When retreating or receding linearly toward the inside of the casing, the elastic member is in a compressed and deformed state; when the connecting member moves outside the casing, the elastic member is in a deformed state of restoring. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 5, characterized in that: the connecting part is a fixed flange, and the inner end of the double-headed screw is away from the screw The injection end is fixedly connected. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 2, characterized in that: an organic shell lining is detachably provided inside the shell, and the sleeve and the nut pass through The rotating connecting piece is rotatably arranged on the inner lining of the casing, and the rotating connecting piece is a bearing. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 7, wherein the pressure sensor is arranged on the inner lining of the casing away from the end of the barrel and close to the casing Between the ends of the injection drive. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 8, wherein the end of the casing away from the barrel forms a stepped cavity, and the casing is lined with a plug Into the stepped cavity. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 9, characterized in that: a first cavity and a second cavity are formed inside the casing lining, wherein the The diameter of the first cavity is greater than the diameter of the second cavity, the bearings are respectively arranged in the first cavity and the second cavity, and the sleeve and the nut are opposed to the machine The shell lining rotates and sets. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 2, wherein the plasticizing driving member includes a plasticizing gear arranged concentrically with the sleeve for driving the plastic The plasticizing transmission part and the plasticizing motor that rotate the gears. The plasticizing power and injection power synergistic high-performance injection molding machine according to claim 2, wherein the injection driving member includes an injection gear sleeved on the outer end of the nut and arranged concentrically with the nut, An injection transmission member and an injection motor used to drive the injection gear to rotate. The plasticizing power and injection power synergistic high-efficiency injection molding machine according to claim 2, characterized in that: the end of the casing and the outer periphery of the barrel are also provided with a cooling jacket, wherein the cooling jacket is provided There is a feed hole communicating with the plastic material inlet.

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