Self-adaptive adjustment injection molding pressure control device

Abstract

The utility model belongs to the technical field of pressure control, and particularly relates to a self-adaptive adjustment injection molding pressure control device which comprises a base, a lower mold body is arranged at the upper end of the base, an upper mold body is arranged at the upper end of the lower mold body, and an injection head is arranged at an injection port of the upper mold body. A mounting plate is fixedly connected to the right side of the injection head, a motor is fixedly mounted on the vertical portion of the mounting plate, and a rotating shaft is fixedly connected to an output shaft of the motor. Through the arrangement of the injection head, molten liquid can be injected into the injection mold, under the action of structures such as the motor and the rotating shaft, the position of the adjusting ball can be adjusted, then the circulation caliber of the injection head is adjusted, then the pressure of injection liquid is adjusted in a self-adaptive mode for use, and under the action of structures such as the positioning hole and the positioning rod, the injection liquid pressure is adjusted in a self-adaptive mode. And the rotating shaft can be limited, so that the position of the adjusting ball is accurately controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure control, in particular to an injection molding pressure control device with self-adaptive regulation. Background Art

[0002] The adaptively adjustable injection molding pressure control device is a device that can automatically adjust the injection molding pressure according to the changes in the actual production process. The device is usually composed of a pressure sensor, a controller and an actuator.

[0003] The pressure sensor is used to monitor the pressure changes in the injection molding process in real time and transmit the pressure signal to the controller. The controller compares and analyzes the preset pressure parameters and the real-time monitored pressure signal, and then adjusts the pressure of the injection molding machine by controlling the actuator.

[0004] In the utility model patent with patent authorization announcement number CN205800126U, an automatic injection pressure regulating device for injection molding is disclosed, including an injection molding box, an injection tube, an automatic pressure regulator, and a steering shaft. A pressure regulating valve is arranged above the injection molding box, a manual pressure regulating wheel is installed on one side of the injection molding box, the injection tube is arranged on one side of the injection molding box, a solenoid valve is arranged inside the injection tube, a pressure monitor is installed on the injection tube, the automatic pressure regulator is arranged inside the injection molding box, a lubricating oil tank is arranged on one side of the injection molding box, a lubricating oil adding pipe is installed above the lubricating oil tank, a feeding pipe is arranged on the injection molding box, and a bearing seat is arranged on the injection molding box.

[0005] However, the existing adaptive injection molding pressure control device also has certain shortcomings. Although the existing adaptive injection molding pressure control device mostly uses electric drive to adjust the position of the adjusting ball to complete the adjustment of the injection head diameter, due to the influence of external factors such as inertia, it is easy to cause the problem of unnecessary rotation of the adjusting ball. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an injection molding pressure control device with self-adaptive adjustment, which solves the problem that although the existing injection molding pressure control device with self-adaptive adjustment mostly uses an electric drive to adjust the position of the adjusting ball to complete the adjustment of the injection head diameter, it is easy to cause unnecessary rotation of the adjusting ball due to the influence of external factors such as inertia.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A self-adaptive injection molding pressure control device comprises a base, a lower mold body is arranged at the upper end of the base, an upper mold body is arranged at the upper end of the lower mold body, an injection head is arranged at the injection port of the upper mold body, a mounting plate is fixedly connected to the right side of the injection head, a motor is fixedly installed on the vertical part of the mounting plate, an output shaft of the motor is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the injection head, an adjusting ball is fixedly sleeved on the outer side of the rotating shaft, and the adjusting ball is rotatably connected to the injection head.

[0009] In addition, a preferred structure is that a positioning hole is provided on the surface of the rotating shaft, the horizontal part of the mounting plate is slidably connected with a positioning rod, the positioning rod is slidably connected to the positioning hole, the upper end of the positioning rod is fixedly connected to an end plate, a spring is provided on the outer side of the positioning rod, the lower end of the end plate is fixedly connected with a guide rod, the guide rod is slidably connected to the mounting plate, and through the coordinated use of positioning holes, positioning rods and other structures, the rotating shaft can be limited, and then the position of the adjusting ball can be precisely controlled.

[0010] In addition, a preferred structure is that a plurality of the positioning holes are provided, and the plurality of the positioning holes are arranged in a circular array on the rotating shaft. The provision of the positioning holes facilitates the use of the positioning rod for clamping.

[0011] In addition, a preferred structure is that one end of the spring one is welded to the end plate, and the other end of the spring one is welded to the mounting plate. Through the setting of the spring one, the end plate can be connected for use.

[0012] In addition, a preferred structure is that two guide rods are provided, and the two guide rods are symmetrically distributed on the end plate. Through the provision of the guide rods, the positioning rod can be guided.

[0013] In addition, a preferred structure is that a rotating column is fixedly sleeved on the outer side of the output shaft of the motor, a limiting ring groove is provided on the surface of the rotating column, an inner wall of the limiting ring groove is slidably connected to a limiting plate, a vertical portion of the mounting plate is fixedly connected to a fixing plate, a spring 2 is welded to the surface of the limiting plate away from the rotating column, the other end of the spring 2 is welded to the fixing plate, and the rotating column can be rotationally guided by the action of structures such as the spring 2, the limiting ring groove, and the limiting plate.

[0014] In addition, a preferred structure is that two limiting plates are provided, and the two limiting plates are symmetrically distributed on the rotating column. By providing the limiting plates, the rotating column can be limited.

[0015] The beneficial effects of the utility model are:

[0016] The utility model can inject molten liquid into the injection mold through the setting of the injection head, and under the action of the motor, the rotating shaft and other structures, the position of the adjusting ball can be adjusted, and then the flow diameter of the injection head can be adjusted, and then the injection liquid pressure can be adaptively adjusted. Under the action of the positioning hole, the positioning rod and other structures, the rotating shaft can be limited, and then the position of the adjusting ball can be accurately controlled. Through the coordinated use of the rotating column, the limiting ring groove and the limiting plate, the output shaft of the motor can be rotated and guided to avoid the problem of centrifugal deflection and shaking of the rotating shaft driven by the output shaft, and under the action of the second spring, the limiting effect of the limiting plate can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the overall structure of an adaptively adjustable injection molding pressure control device proposed by the utility model;

[0018] Figure 2 The utility model proposes an adaptively adjustable injection molding pressure control device Figure 1 A cutaway perspective view of

[0019] Figure 3 The utility model proposes an adaptively adjustable injection molding pressure control device Figure 2 A magnified view of the adjustment ball;

[0020] Figure 4 The utility model proposes an adaptively adjustable injection molding pressure control device Figure 3 Enlarged view of point A.

[0021] In the figure: 1. base; 2. lower mold body; 3. upper mold body; 4. injection head; 5. mounting plate; 6. motor; 7. rotating shaft; 8. adjusting ball; 9. positioning hole; 10. positioning rod; 11. end plate; 12. spring 1; 13. guide rod; 14. rotating column; 15. limiting ring groove; 151. limiting plate; 16. fixing plate; 17. spring 2. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4A self-adaptive injection molding pressure control device comprises a base 1, a lower mold body 2 is arranged at the upper end of the base 1, an upper mold body 3 is arranged at the upper end of the lower mold body 2, an injection port of the upper mold body 3 is arranged with an injection head 4, a mounting plate 5 is fixedly connected to the right side of the injection head 4, a motor 6 is fixedly installed on the vertical part of the mounting plate 5, an output shaft of the motor 6 is fixedly connected to a rotating shaft 7, the rotating shaft 7 is rotatably connected to the injection head 4, an adjusting ball 8 is fixedly sleeved on the outer side of the rotating shaft 7, and the adjusting ball 8 is rotatably connected to the injection head 4.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A positioning hole 9 is provided on the surface of the rotating shaft 7, and a positioning rod 10 is slidably connected to the horizontal part of the mounting plate 5, and the positioning rod 10 is slidably connected to the positioning hole 9. The upper end of the positioning rod 10 is fixedly connected to an end plate 11, and a spring 12 is provided on the outer side of the positioning rod 10. The lower end of the end plate 11 is fixedly connected to a guide rod 13, and the guide rod 13 is slidably connected to the mounting plate 5. Through the coordinated use of the positioning hole 9, the positioning rod 10 and other structures, the rotating shaft 7 can be limited, and then the position of the adjusting ball 8 can be accurately controlled.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 There are multiple positioning holes 9, which are arranged in a circular array on the rotating shaft 7. The positioning holes 9 are arranged to facilitate the use of the positioning rod 10 for clamping. One end of the spring 12 is welded to the end plate 11, and the other end of the spring 12 is welded to the mounting plate 5. The end plate 11 can be connected by the setting of the spring 12. Two guide rods 13 are provided, and the two guide rods 13 are symmetrically distributed on the end plate 11. The positioning rod 10 can be guided by the setting of the guide rods 13.

[0026] See also Figure 1 , Figure 2 , Figure 3 A rotating column 14 is fixedly sleeved on the outer side of the output shaft of the motor 6, and a limiting ring groove 15 is provided on the surface of the rotating column 14. The inner wall of the limiting ring groove 15 is slidably connected to a limiting plate 151. Two limiting plates 151 are provided, and the two limiting plates 151 are symmetrically distributed on the rotating column 14. Through the setting of the limiting plates 151, the rotating column 14 can be limited. A fixing plate 16 is fixedly connected to the vertical portion of the mounting plate 5. A spring 2 17 is welded on the surface of the limiting plate 151 away from the rotating column 14. The other end of the spring 2 17 is welded to the fixing plate 16. Through the action of the spring 2 17, the limiting ring groove 15, the limiting plate 151 and other structures, the rotating column 14 can be rotationally guided.

[0027] The specific implementation process of the utility model is as follows: when the injection molding pressure control device with adaptive adjustment needs to be used, the molten liquid can be injected into the injection mold through the setting of the injection head 4, and the injection pressure can be monitored under the action of the pressure sensor set on the inner wall of the injection head 4, so as to facilitate the subsequent adaptive adjustment;

[0028] The output shaft is driven by the motor 6 to rotate, so as to drive the rotating shaft 7 to rotate, and then drive the adjusting ball 8 to rotate, so as to adjust the position of the adjusting ball 8, and then adjust the caliber of the injection head 4, and then adjust the injection pressure. In this process, when the rotating shaft 7 rotates, the inner wall of the positioning hole 9 squeezes the positioning rod 10 to push the end plate 11 to move, and drives the guide rod 13 to move, so as to ensure the stable movement of the positioning rod 10, and the spring 12 is deformed, so that the positioning rod 10 finally disengages from the positioning hole 9. Under the action of force, the positioning rod 10 slides along the surface of the rotating shaft 7. When the positioning rod 10 slides into the next positioning hole 9, the spring 12 restores the deformation to push the positioning rod 10 to insert into the positioning hole 9, limit the rotating shaft 7, and then accurately control the position of the adjusting ball 8.

[0029] During this process, when the motor 6 drives the output shaft to rotate, it can drive the rotating column 14 to rotate, so that the limiting piece 151 slides along the inner wall of the limiting ring groove 15, and the rotating column 14 is guided and limited in rotation. Under the deformation action of the spring 17, the limiting piece 151 can be pushed to always be in close contact with the limiting ring groove 15 to ensure the limiting effect of the limiting piece 151, so that the rotating column 14 drives the rotating shaft 7 and the output shaft of the motor 6 to be in a stable rotation state, thereby avoiding the problem of deflection and shaking of the output shaft and the rotating shaft 7 due to centrifugal force.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adaptively adjustable injection molding pressure control device, comprising a base (1), characterized in that: A lower mold body (2) is arranged at the upper end of the base (1), an upper mold body (3) is arranged at the upper end of the lower mold body (2), an injection head (4) is arranged at the injection port of the upper mold body (3), a mounting plate (5) is fixedly connected to the right side of the injection head (4), a motor (6) is fixedly installed on the vertical part of the mounting plate (5), an output shaft of the motor (6) is fixedly connected to a rotating shaft (7), the rotating shaft (7) is rotatably connected to the injection head (4), an adjusting ball (8) is fixedly sleeved on the outer side of the rotating shaft (7), and the adjusting ball (8) is rotatably connected to the injection head (4).

2. The self-adaptive injection molding pressure control device according to claim 1, characterized in that: A positioning hole (9) is provided on the surface of the rotating shaft (7); a positioning rod (10) is slidably connected to the horizontal portion of the mounting plate (5); the positioning rod (10) is slidably connected to the positioning hole (9); the upper end of the positioning rod (10) is fixedly connected to an end plate (11); a spring (12) is provided on the outer side of the positioning rod (10); the lower end of the end plate (11) is fixedly connected to a guide rod (13); and the guide rod (13) is slidably connected to the mounting plate (5).

3. The self-adaptive injection molding pressure control device according to claim 2, characterized in that: A plurality of the positioning holes (9) are provided, and the plurality of the positioning holes (9) are arranged in a ring array on the rotating shaft (7).

4. The self-adaptive injection molding pressure control device according to claim 2, characterized in that: One end of the spring one (12) is welded to the end plate (11), and the other end of the spring one (12) is welded to the mounting plate (5).

5. The self-adaptive injection molding pressure control device according to claim 2, characterized in that: Two guide rods (13) are provided, and the two guide rods (13) are symmetrically distributed on the end plate (11).

6. The self-adaptive injection molding pressure control device according to claim 1, characterized in that: A rotating column (14) is fixedly sleeved on the outer side of the output shaft of the motor (6); a limiting ring groove (15) is provided on the surface of the rotating column (14); a limiting plate (151) is slidably connected to the inner wall of the limiting ring groove (15); a fixing plate (16) is fixedly connected to the vertical portion of the mounting plate (5); a second spring (17) is welded to the surface of the limiting plate (151) away from the rotating column (14); and the other end of the second spring (17) is welded to the fixing plate (16).

7. The self-adaptive injection molding pressure control device according to claim 6, characterized in that: Two of the limiting plates (151) are provided, and the two limiting plates (151) are symmetrically distributed on the rotating column (14).

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