Automatic pressure regulation extruder head device for acetic acid membrane

Abstract

The utility model relates to the technical field of injection molding, and discloses an acetic acid membrane automatic pressure adjusting extruder head device which comprises an extruder body, an extrusion mechanism is fixedly installed on the upper surface of the extruder body, a hopper is arranged on the upper surface of the extrusion mechanism, and the extrusion mechanism comprises a shell, a heating system and a spiral conveying rod. A motor is arranged on the outer surface of the extrusion mechanism, the output end of the motor is connected with the spiral conveying rod in a sleeved mode, an extrusion head assembly is arranged at the end, away from the motor, of the extrusion mechanism, and the extrusion head assembly comprises an extrusion head body. Therefore, the extruded plastic product is more uniform in thickness and relatively regular in shape, uniform plasticization of the plastic in the extrusion process is guaranteed, the extruded product meets the production requirement, meanwhile, the change of the pressure intensity of the extrusion head can be found in time, subsequent maintenance is facilitated, and batch unqualified extruded products are prevented.

Description

Technical Field

[0001] The present application relates to the field of injection molding technology, and in particular to an automatic pressure regulating extruder head device for acetate diaphragms. Background Art

[0002] Acetate film is used in the design of some mobile phone back covers. Its production process involves extrusion molding. However, traditional extruder heads suffer from inaccurate pressure regulation and low production efficiency during the acetate film production process. Unbalanced pressure can lead to uneven extrusion speeds, resulting in uneven thickness and shape of the extruded plastic product, and even defects such as bamboo-like shapes. It can also cause uneven plasticization of the plastic during extrusion, resulting in microcracks or small particles of unplasticized plastic. Pressure fluctuations are difficult to detect in a timely manner, resulting in a large number of substandard products. Utility Model Content

[0003] This application provides an automatic pressure-regulating extruder head device for acetate film sheets, addressing issues such as inaccurate pressure regulation and low production efficiency associated with conventional extruder heads during acetate film production. Pressure imbalance can lead to uneven extrusion speeds, resulting in uneven thickness and shape of the extruded plastic product, and even defects such as bamboo-like shapes. It can also cause uneven plasticization of the plastic during extrusion, leading to tiny cracks or small, unplasticized particles.

[0004] The present application provides an automatic pressure-regulating extruder head device for an acetic acid diaphragm, comprising an extruder main body, an extrusion mechanism fixedly mounted on the upper surface of the extruder main body, a hopper provided on the upper surface of the extrusion mechanism, an extrusion mechanism comprising an outer shell, a heating system and a screw conveying rod, a motor provided on the outer surface of the extrusion mechanism, the output end of the motor being sleeved with the screw conveying rod, an extrusion head assembly provided on the end of the extrusion mechanism away from the motor, the extrusion head assembly comprising an extrusion head main body, an extrusion port fixedly connected to the bottom end of the extrusion head main body, a pressure regulating mechanism provided in the inner cavity of the extrusion head main body, an alarm mechanism provided on the outer surface of the pressure regulating mechanism, and the extrusion head main body being embedded in the inner cavity of the extrusion mechanism.

[0005] Furthermore, the pressure regulating mechanism includes a pressure regulating cylinder, the inner cavity of the pressure regulating cylinder is slidably connected to a piston, the outer surface of the piston is fixedly mounted with a pressure balancing rod, and the outer surface of the pressure balancing rod is sleeved with a spring.

[0006] Furthermore, the pressure balance rod and the pressure regulating cylinder are slidably connected, the piston is in close contact with the inner wall of the pressure regulating cylinder, one end of the spring is fixedly connected to the piston, and the other end is fixedly connected to the inner wall of the pressure regulating cylinder.

[0007] Furthermore, the alarm mechanism includes a connecting frame, an alarm is fixedly installed on the outer surface of the connecting frame, a threaded rod is rotatably connected to the inner cavity of the connecting frame, a slider is slidably connected to the inner cavity of the connecting frame, a button is provided on the outer surface of the slider, one end of the pressure balance rod is fixedly connected to a connecting strip, and an alarm block is fixedly installed on the end of the connecting strip away from the pressure balance rod.

[0008] Furthermore, there are two sliders, and they are symmetrically distributed about the middle part of the connecting frame. The sliders and the threaded rod are connected by threads, and the thread directions at both ends of the threaded rod are opposite. The button and the alarm are electrically connected. Pressing the button controls the alarm to sound an alarm. The alarm block is located in the middle part of the two sliders, and the button and the alarm block are on the same line.

[0009] The technical solution provided by this application has at least the following technical effects or advantages:

[0010] The use of the extrusion head assembly effectively solves the problem that pressure imbalance may cause uneven extrusion speed, resulting in uneven thickness and irregular shape of the extruded plastic product, and even defects such as bamboo-shaped. It may also cause uneven plasticization of the plastic during the extrusion process, resulting in tiny cracks or small particles that are not plasticized well. It is difficult to detect changes in pressure in time, thereby producing a large number of unqualified products. The utility model can effectively adjust the pressure inside the extrusion head through the extrusion head assembly, so that the thickness of the extruded plastic product is more uniform and the shape is relatively regular, ensuring that the plastic is plasticized evenly during the extrusion process, so that the extruded product meets production needs. At the same time, changes in the extrusion head pressure can be detected in time, which is convenient for subsequent maintenance and prevents the occurrence of batches of unqualified extruded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application;

[0012] Figure 2 Schematic diagram of the cross-section of the main structure of the extrusion head in the embodiment of the present application;

[0013] Figure 3 Schematic diagram of the structure of the extrusion head assembly in the embodiment of the present application;

[0014] Figure 4 This is a schematic cross-sectional view of the pressure regulating cylinder structure in an embodiment of the present application;

[0015] In the figure: 1. Extruder body; 2. Extrusion mechanism; 3. Hopper; 4. Motor; 5. Extrusion head assembly; 51. Extrusion head body; 52. Extrusion port; 53. Pressure regulating mechanism; 531. Pressure regulating cylinder; 532. Piston; 533. Pressure balance rod; 534. Spring; 54. Alarm mechanism; 541. Connecting frame; 542. Alarm; 543. Threaded rod; 544. Slider; 545. Button; 546. Connecting bar; 547. Alarm block. DETAILED DESCRIPTION

[0016] For uneven pressure, the utility model can effectively adjust the pressure inside the extrusion head through the extrusion head assembly, so that the thickness of the extruded plastic product is more uniform and the shape is relatively regular, ensuring that the plastic is plasticized evenly during the extrusion process, so that the extruded product meets production requirements.

[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods. Example

[0018] See also Figure 1 As shown, an acetic acid diaphragm automatic pressure regulating extruder head device includes an extruder body 1, an extrusion mechanism 2 is fixedly mounted on the upper surface of the extruder body 1, a hopper 3 is provided on the upper surface of the extrusion mechanism 2, the extrusion mechanism 2 includes a shell, a heating system and a screw conveying rod, a motor 4 is provided on the outer surface of the extrusion mechanism 2, the output end of the motor 4 is sleeved with the screw conveying rod, and an extrusion head assembly 5 is provided on the end of the extrusion mechanism 2 away from the motor 4. When extrusion is performed, the raw material enters the inner cavity of the extrusion mechanism 2 through the hopper 3, the motor 4 drives the screw conveying rod to rotate, and heats the inside of the extrusion mechanism 2. The screw conveying rod conveys the raw material from the inner cavity of the extrusion mechanism 2 to the extrusion head assembly 5 for extrusion. The extrusion head assembly 5 can adjust the pressure to make the injection molding raw material more evenly extruded.

[0019] See also Figure 2 、 Figure 3 and Figure 4As shown, the extrusion head assembly 5 includes an extrusion head body 51, the bottom end of the extrusion head body 51 is fixedly connected to the extrusion port 52, the inner cavity of the extrusion head body 51 is provided with a pressure regulating mechanism 53, the outer surface of the pressure regulating mechanism 53 is provided with an alarm mechanism 54, the extrusion head body 51 is embedded in the inner cavity of the extrusion mechanism 2, the pressure regulating mechanism 53 includes a pressure regulating cylinder 531, the inner cavity of the pressure regulating cylinder 531 is slidably connected to a piston 532, the outer surface of the piston 532 is fixedly installed with a pressure balancing rod 533, the outer surface of the pressure balancing rod 533 is sleeved with a spring 534, the pressure balancing rod 533 and the pressure regulating cylinder 531 are slidably connected, the piston 532 is in close contact with the inner wall of the pressure regulating cylinder 531, and one end of the spring 534 is in close contact with the piston 532 is fixedly connected, and the other end is fixedly connected to the inner wall of the pressure regulating cylinder 531. When the internal pressure of the extruder main body 51 increases, the injection molding material squeezes the piston 532 from the inner cavity of the pressure regulating cylinder 531. At this time, the pressure balance rod 533 slides in the inner cavity of the pressure regulating cylinder 531. At this time, the spring 534 is compressed under the movement of the piston 532, so that the pressure in the inner cavity of the extruder main body 51 is buffered, so that the injection molding material is more evenly extruded from the extrusion port 52. When the pressure of the extruder main body 51 is balanced, the elastic force of the spring 534 restores the piston 532 to its original position, so as to keep the pressure on the inner wall of the extruder main body 51 balanced, reduce the damage of the equipment due to pressure changes, and thus improve productivity and production quality.

[0020] See also Figure 3 and Figure 4As shown, the alarm mechanism 54 includes a connecting frame 541, an outer surface of the connecting frame 541 is fixedly installed with an alarm 542, the inner cavity of the connecting frame 541 is rotatably connected to a threaded rod 543, the inner cavity of the connecting frame 541 is slidably connected to a slider 544, the outer surface of the slider 544 is provided with a button 545, one end of the pressure balance rod 533 is fixedly connected to a connecting strip 546, and the end of the connecting strip 546 away from the pressure balance rod 533 is fixedly installed with an alarm block 547, there are two sliders 544, and they are symmetrically distributed about the middle part of the connecting frame 541, the slider 544 and the threaded rod 543 are connected by threads, and the threads at both ends of the threaded rod 543 are in opposite directions, the button 545 and the alarm 542 are electrically connected, and pressing the button 545 controls the alarm 542 to sound an alarm, and the alarm block 547 is located in the middle part of the two sliders 544, and the button 545 and the alarm block 547 are at the same On a straight line, during the movement of the pressure balance rod 533, the pressure balance rod 533 drives the connecting bar 546 to move, and the movement of the connecting bar 546 drives the alarm block 547 to move. The movement of the alarm block 547 causes the alarm block 547 to contact the button 545, so that the button 545 is pressed. The pressing of the button 545 causes the alarm 542 to sound an alarm, reminding the staff that the internal pressure of the extrusion head body 51 has changed and timely maintenance is required. At the same time, the slider 544 can be driven to slide on the connecting frame 541 by rotating the threaded rod 543, so that the distance from the slider 544 to the middle part of the connecting frame 541 changes, thereby changing the distance between the button 545 and the alarm block 547. The alarm distance can be set according to needs so that the staff can carry out timely maintenance, which is convenient for injection molding to keep the pressure in the inner cavity of the extrusion head body 51 always balanced, so that the extruded plastic product has a uniform thickness and a smooth surface.

[0021] To sum up, during extrusion, the raw material enters the inner cavity of the extrusion mechanism 2 through the hopper 3, the motor 4 drives the screw conveying rod to rotate, and heats the inside of the extrusion mechanism 2. The screw conveying rod conveys the raw material from the inner cavity of the extrusion mechanism 2 to the extrusion head assembly 5 for extrusion. When the internal pressure of the extrusion head body 51 increases, the injection molding raw material squeezes the piston 532 from the inner cavity of the pressure regulating cylinder 531. At this time, the pressure balance rod 533 slides in the inner cavity of the pressure regulating cylinder 531. At this time, the spring 534 is compressed under the movement of the piston 532, so that the pressure in the inner cavity of the extrusion head body 51 is buffered, so that the injection molding raw material is more evenly extruded from the extrusion port 52, and the injection molding raw material is more evenly extruded. The alarm mechanism 54 is used to issue an alarm when the pressure of the extrusion head body 51 is unbalanced.

[0022] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

[0023] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. An acetic acid film automatic pressure regulating extruder head device, comprising an extruder body (1), characterized in that: An extrusion mechanism (2) is fixedly mounted on the upper surface of the extruder body (1), a hopper (3) is provided on the upper surface of the extrusion mechanism (2), the extrusion mechanism (2) comprises a housing, a heating system and a screw conveying rod, a motor (4) is provided on the outer surface of the extrusion mechanism (2), the output end of the motor (4) is sleeved with the screw conveying rod, and an extrusion head assembly (5) is provided at the end of the extrusion mechanism (2) away from the motor (4); The extrusion head assembly (5) comprises an extrusion head body (51), the bottom end of the extrusion head body (51) is fixedly connected to an extrusion port (52), the inner cavity of the extrusion head body (51) is provided with a pressure regulating mechanism (53), the outer surface of the pressure regulating mechanism (53) is provided with an alarm mechanism (54), and the extrusion head body (51) is embedded in the inner cavity of the extrusion mechanism (2).

2. The acetic acid diaphragm automatic pressure regulating extruder head device according to claim 1, characterized in that: The pressure regulating mechanism (53) includes a pressure regulating cylinder (531), the inner cavity of the pressure regulating cylinder (531) is slidably connected to a piston (532), the outer surface of the piston (532) is fixedly mounted with a pressure balancing rod (533), and the outer surface of the pressure balancing rod (533) is sleeved with a spring (534).

3. The automatic pressure regulating extruder head device for acetate membrane according to claim 2, characterized in that: The pressure balancing rod (533) is slidably connected to the pressure regulating cylinder (531), the piston (532) is in close contact with the inner wall of the pressure regulating cylinder (531), and one end of the spring (534) is fixedly connected to the piston (532), and the other end is fixedly connected to the inner wall of the pressure regulating cylinder (531).

4. The automatic pressure regulating extruder head device for acetate membrane according to claim 3, characterized in that: The alarm mechanism (54) includes a connecting frame (541), an alarm (542) is fixedly installed on the outer surface of the connecting frame (541), a threaded rod (543) is rotatably connected to the inner cavity of the connecting frame (541), a slider (544) is slidably connected to the inner cavity of the connecting frame (541), and a button (545) is provided on the outer surface of the slider (544), one end of the pressure balance rod (533) is fixedly connected to a connecting strip (546), and an alarm block (547) is fixedly installed on the end of the connecting strip (546) away from the pressure balance rod (533).

5. The automatic pressure regulating extruder head device for acetate film according to claim 4, characterized in that: There are two sliders (544), which are symmetrically distributed about the middle part of the connecting frame (541). The sliders (544) and the threaded rod (543) are connected by threads, and the threads at both ends of the threaded rod (543) are in opposite directions. The button (545) and the alarm (542) are electrically connected. Pressing the button (545) controls the alarm (542) to sound an alarm. The alarm block (547) is located in the middle part of the two sliders (544), and the button (545) and the alarm block (547) are on the same straight line.

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