BOPET (Biaxially Oriented Polyethylene Terephthalate) extrusion device

Abstract

The utility model discloses a BOPET (Biaxially Oriented Polyethylene Terephthalate) extrusion device and relates to the field of film extrusion devices. The device comprises a device body, the device body comprises a base, a motor box, a gear box and a heating bin, an early warning mechanism is arranged, the early warning mechanism comprises a flange ring, a mounting base, a first vibration sensor and a transmission line, the flange ring facilitates mounting and dismounting of the early warning mechanism, and the transmission line is arranged on the mounting base. The mounting seat provides a stable mounting platform for the first vibration sensor to ensure accurate measurement of the first vibration sensor, the first vibration sensor monitors the vibration condition of the feeding mechanism in real time, when material blockage occurs, a driving rod of the driving motor is eccentric and generates polarization, the first vibration sensor can detect the abnormal vibration, and the feeding mechanism is prevented from being damaged. In addition, the heater heats the heating bin, it is ensured that materials are extruded at the proper temperature, and the film quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of film extrusion devices, in particular to a BOPET biaxially oriented film extrusion device. Background Art

[0002] BOPET biaxially oriented film, full name biaxially oriented polyethylene terephthalate film, is a polyester film material obtained through special process treatment. It uses polyethylene terephthalate as the base material and is made through a series of production process steps such as raw material drying, melt extrusion, biaxial stretching, heat treatment, and surface treatment. During the biaxial stretching process, its molecular chains are rearranged to form a highly ordered microstructure, thus endowing the film with excellent physical, chemical, and optical properties, such as high strength, high transparency, etc. And a BOPET biaxially oriented film extrusion device is required for melt extrusion and truncation.

[0003] During the long-term use of the existing BOPET biaxially oriented film extrusion device, due to the wear of each component of the device, the situation of material blockage may occur. Once material blockage occurs, it often leads to the blocking of the spiral roller, and at this time, cleaning becomes very difficult. More intractably, the state of the existing BOPET biaxially oriented film extrusion device at the initial stage of wear is extremely difficult to observe with the naked eye, and there is no obvious warning signal. Therefore, operators usually cannot detect problems in time at the initial stage of wear. Only after a serious blocking situation occurs can it be judged that the spiral roller or other key components have been damaged. This situation not only affects production efficiency but also may cause greater damage to the device, increasing the maintenance cost and the risk of production interruption. Summary of the Utility Model

[0004] Based on this, the purpose of the present utility model is to provide a BOPET biaxially oriented film extrusion device to solve the technical problems of being difficult to observe at the initial stage of equipment wear, having no obvious warning signal, being prone to material blockage and spiral roller blocking, difficult to clean, affecting production efficiency, increasing maintenance cost, and production interruption risk.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A BOPET biaxially oriented film extrusion device, including a device main body, the device main body includes a base, a motor box, a gear box, and a heating chamber. A feeding mechanism is arranged on the top of the gear box. The feeding mechanism includes a feeding port, a forced feeder base, and a driving motor. The output end of the forced feeder base is connected to the heating chamber, and a warning mechanism is installed on the forced feeder base;

[0006] The warning mechanism includes a flange ring which is detachably connected to the forced feeding machine base. An installation seat is provided at the top of the flange ring, and a first vibration sensor is threadedly connected to the top of the installation seat. A transmission line is provided on one side of the first vibration sensor and is connected to an external control terminal.

[0007] By adopting the above technical solution, it is ensured that the entire process from raw material feeding to film extrusion is carried out in an integrated and efficient system. The setting of the warning mechanism increases the safety and reliability of the equipment.

[0008] Furthermore, the first vibration sensor is used to detect the material jamming situation of the feeding mechanism and to control the driving motor. When material jamming occurs, the first vibration sensor can effectively cause the feeding mechanism to stop urgently.

[0009] By adopting the above technical solution, the vibration situation of the feeding mechanism is monitored in real time, the material jamming problem can be discovered in time, and measures such as urgently stopping the driving motor can be taken quickly, thereby preventing the equipment from being damaged due to material jamming and improving the reliability and service life of the equipment.

[0010] Furthermore, a heater is provided at the top of the heating chamber, and a second vibration sensor is provided on one side of the heater.

[0011] By adopting the above technical solution, the setting of the heater ensures that the raw materials in the heating chamber can reach an appropriate processing temperature, improving the quality of the film. The setting of the second vibration sensor is used to monitor the vibration situation of the heating chamber in real time, providing additional guarantee for the maintenance and safe operation of the equipment.

[0012] Furthermore, the second vibration sensor is used to detect the vibration of the heating chamber and to detect the situation of two screws inside the heating chamber.

[0013] By adopting the above technical solution, by monitoring the vibration situation of the heating chamber in real time, the second vibration sensor can discover the wear or abnormal vibration of the screws in time, thereby helping the operator to take measures in time to prevent equipment damage and production interruption.

[0014] Furthermore, a motor box is provided on one side of the base, a gear box is provided on one side of the motor box, and the output end of the motor inside the motor box is connected to the inside of the gear box.

[0015] By adopting the above technical solution, it is ensured that the motor can stably drive the gears inside the gear box to rotate, providing a reliable power source for the entire extrusion process.

[0016] Furthermore, a heating chamber is installed on the side of the gear box away from the motor box, and two screws are rotatably connected inside the heating chamber, and one ends of the two screws are connected to the gears inside the gear box.

[0017] By adopting the above technical solution, it is ensured that the gears in the gearbox can stably drive the two screws to rotate, thereby realizing the continuous and uniform extrusion of raw materials.

[0018] Furthermore, the motor in the motor box is used to drive the gears in the gearbox to rotate, and after the gears rotate, they can effectively cause the two screws to rotate.

[0019] By adopting the above technical solution, it is ensured that the energy loss is minimized during the power transmission process from the motor to the screw, and the overall efficiency of the equipment is improved.

[0020] Furthermore, a plurality of extrusion holes arranged at equal intervals in an annular array are formed at the other ends of the two screws, and a lead-out head is provided at one end of the heating chamber far from the gearbox, and the lead-out head is used to lead out the molten film raw material.

[0021] By adopting the above technical solution, it is ensured that the molten film raw material can be evenly extruded through the extrusion holes and form a continuous film through the lead-out head, improving the quality of the film and the stability of production.

[0022] Furthermore, a forced feeding machine base is provided at the bottom of the feeding port, and the forced feeding machine base is fixedly connected to the gearbox.

[0023] By adopting the above technical solution, it is ensured that the raw materials can stably and continuously enter the heating chamber, providing a reliable raw material supply for the extrusion process. At the same time, the fixed connection between the forced feeding machine base and the gearbox also improves the overall stability of the equipment.

[0024] Furthermore, a driving motor is provided on one side of the forced feeding machine base, and the driving motor is used to cause the forced feeding machine base to perform forced feeding.

[0025] By adopting the above technical solution, the driving motor provides power for the forced feeding machine base, ensuring that the raw materials can continuously and evenly enter the heating chamber, improving the stability and efficiency of production. At the same time, the forced feeding method also helps to prevent the problem of blockage of the raw materials during the feeding process.

[0026] In summary, the main beneficial effects of the present utility model are as follows:

[0027] 1. The utility model is provided with an early warning mechanism, which includes a flange ring, a mounting seat, a first vibration sensor and a transmission line. The flange ring facilitates the installation and disassembly of the early warning mechanism. The mounting seat provides a stable installation platform for the first vibration sensor to ensure accurate measurement. The first vibration sensor monitors the vibration condition of the feeding mechanism in real time. When blockage occurs, the driving rod of the driving motor will be eccentric and generate polarization. The first vibration sensor can detect this abnormal vibration and immediately send a signal to control the driving motor to stop urgently, preventing the equipment from being damaged due to blockage. The transmission line transmits the signal of the first vibration sensor to an external control terminal to realize remote monitoring and control. In addition, a heater heats the heating bin to ensure that the material is extruded at an appropriate temperature, improving the film quality;

[0028] 2. The utility model is provided with a second vibration sensor, which monitors the vibration condition of the heating bin in real time and reflects the working state of the internal screw. Once abnormal vibration is found, such as screw wear, blockage, etc., an alarm can be sent in time, facilitating the operator to take measures to prevent equipment damage and production interruption. In summary, through the setting of the early warning mechanism, the device can effectively detect the blockage condition of the feeding mechanism and take measures in time to prevent equipment damage, thereby improving production efficiency, reducing maintenance costs and the risk of production interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structure schematic diagram of the utility model;

[0030] Figure 2 is a front three-dimensional structure schematic diagram of the utility model;

[0031] Figure 3 is a front sectional structure schematic diagram of the utility model;

[0032] Figure 4 is the utility model Figure 1 is an enlarged structure schematic diagram of part A in the utility model.

[0033] In the figure: 1, device main body; 101, base; 102, motor box; 103, gear box; 104, heating bin; 105, heater; 106, export head; 107, screw; 108, extrusion hole; 2, feeding mechanism; 201, feeding port; 202, forced feeding machine base; 203, driving motor; 3, early warning mechanism; 301, flange ring; 302, mounting seat; 303, first vibration sensor; 304, transmission line; 4, second vibration sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The following will describe the embodiments of the present utility model according to its overall structure. Embodiment 1:

[0038] A BOPET biaxially stretched film extrusion device, as Figures 1 - 4 shown, includes a device main body 1. The device main body 1 includes a base 101, a motor box 102, a gear box 103, and a heating chamber 104. A feeding mechanism 2 is provided on the top of the gear box 103. The feeding mechanism 2 includes a feeding port 201, a forced feeder base 202, and a driving motor 203. The output end of the forced feeder base 202 is connected to the heating chamber 104, and a warning mechanism 3 is installed on the forced feeder base 202; the warning mechanism 3 includes a flange ring 301. The flange ring 301 is detachably connected to the forced feeder base 202. An installation seat 302 is provided on the top of the flange ring 301, and a first vibration sensor 303 is threadedly connected to the top of the installation seat 302. A transmission line 304 is provided on one side of the first vibration sensor 303, and the transmission line 304 is connected to an external control terminal. By directly connecting the feeding mechanism 2 to the heating chamber 104 and providing the warning mechanism 3, the stable feeding of raw materials and the timely warning of the equipment are ensured, and the production efficiency and equipment safety are improved.

[0039] Refer to Figure 1 、Figure 2 , Figure 3 , Figure 4 , the first vibration sensor 303 is used to detect the material jamming situation of the feeding mechanism 2. The first vibration sensor 303 is used to control the driving motor 203. When material jamming occurs, the first vibration sensor 303 can effectively cause the feeding mechanism 2 to stop urgently. By monitoring the vibration situation of the feeding mechanism 2 in real time, the first vibration sensor 303 can timely detect the material jamming problem and quickly take measures such as stopping the driving motor 203 urgently, preventing the equipment from being damaged due to material jamming, and improving the reliability and service life of the equipment.

[0040] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a heater 105 is arranged at the top of the heating bin 104. A second vibration sensor 4 is arranged on one side of the heater 105. The arrangement of the heater 105 ensures that the raw materials in the heating bin 104 can reach an appropriate processing temperature, improving the quality of the film. The arrangement of the second vibration sensor 4 is used to monitor the vibration situation of the heating bin 104 in real time, providing additional guarantee for the maintenance and safe operation of the equipment.

[0041] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the second vibration sensor 4 is used to detect the vibration of the heating bin 104 and is used to detect the situation of two screws 107 inside the heating bin 104. By monitoring the vibration situation of the heating bin 104 in real time, the second vibration sensor 4 can timely detect the wear or abnormal vibration of the screws 107, thereby helping the operator to take measures in time to prevent equipment damage and production interruption.

[0042] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a motor box 102 is arranged on one side of the base 101. A gear box 103 is arranged on one side of the motor box 102, and the output end of the motor inside the motor box 102 is connected to the inside of the gear box 103, ensuring that the motor can stably drive the gears inside the gear box 103 to rotate, providing a reliable power source for the entire extrusion process.

[0043] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, on the side of the gearbox 103 away from the motor box 102, a heating chamber 104 is installed. Two screws 107 are rotatably connected inside the heating chamber 104, and one end of each of the two screws 107 is connected to the gear inside the gearbox 103, ensuring that the gear inside the gearbox 103 can stably drive the two screws 107 to rotate, thereby realizing the continuous and uniform extrusion of raw materials.

[0044] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the motor inside the motor box 102 is used to drive the gear inside the gearbox 103 to rotate, and after the gear rotates, it can effectively cause the two screws 107 to rotate, providing an efficient and stable power transmission mechanism, ensuring that the energy loss is minimized during the power transmission process from the motor to the screws 107, and improving the overall efficiency of the equipment. Embodiment 2:

[0045] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a plurality of extrusion holes 108 arranged at equal intervals in an annular array are formed at the other ends of the two screws 107. A lead-out head 106 is provided at one end of the heating chamber 104 away from the gearbox 103. The lead-out head 106 is used to lead out the molten film raw material, ensuring that the molten film raw material can be evenly extruded through the extrusion holes 108 and form a continuous film through the lead-out head 106, improving the quality of the film and the stability of production.

[0046] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a forced feeding machine base 202 is provided at the bottom of the feeding port 201, and the forced feeding machine base 202 is fixedly connected to the gearbox 103, ensuring that the raw materials can stably and continuously enter the heating chamber 104, providing a reliable raw material supply for the extrusion process. At the same time, the fixed connection between the forced feeding machine base 202 and the gearbox 103 also improves the overall stability of the equipment.

[0047] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a driving motor 203 is provided on one side of the forced feeding machine base 202, and the driving motor 203 is used to cause the forced feeding machine base 202 to perform forced feeding. By providing power to the forced feeding machine base 202 through the driving motor 203, it is ensured that the raw materials can continuously and evenly enter the heating chamber 104, improving the stability and efficiency of production. At the same time, the forced feeding method also helps to prevent the problem of blockage of the raw materials during the feeding process.

[0048] The implementation principle of the present utility model is as follows: First, it is necessary to check whether all parts of the device main body 1 are firmly installed, including the base 101, the motor box 102, the gear box 103, and the heating chamber 104. Confirm that the feeding port 201 of the feeding mechanism 2 is unobstructed and there is no material blockage. Ensure that the first vibration sensor 303 and the second vibration sensor 4 of the warning mechanism 3 are properly connected and in working condition;

[0049] Start the heater 105 to preheat the heating chamber 104 to ensure that the internal temperature reaches the appropriate processing temperature. Pour the thin film raw material to be processed into the feeding port 201, start the driving motor 203, and drive the forced feeding machine base 202 to start working to force-feed the raw material into the heating chamber 104;

[0050] The motor in the motor box 102 starts to drive the gears in the gear box 103 to rotate. After the gears rotate, the two screws 107 in the heating chamber 104 are driven to rotate. The raw material is heated to a molten state in the heating chamber 104 and is extruded by the rotation of the screws 107 to form a thin film through the extrusion holes 108. The molten thin film raw material is continuously extruded through the outlet head 106 to form a biaxially stretched thin film;

[0051] During the entire processing process, the first vibration sensor 303 monitors the vibration condition of the feeding mechanism 2 in real time, and the second vibration sensor 4 monitors the vibration condition of the heating chamber 104 and the working state of the internal screw 107 in real time. Once abnormal situations such as material blockage or screw wear occur, the first vibration sensor 303 or the second vibration sensor 4 will immediately send a signal to the external control terminal. After receiving the signal, the external control terminal will immediately issue an alarm and control the driving motor 203 to stop urgently to prevent equipment damage.

[0052] Parts not involved in the present utility model are the same as or can be implemented by the prior art, and will not be elaborated here.

[0053] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and do not limit the utility model. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A BOPET biaxially oriented film extrusion device, characterized in that: It includes a device main body (1), and the device main body (1) includes a base (101), a motor box (102), a gear box (103) and a heating bin (104). A feeding mechanism (2) is arranged on the top of the gear box (103). The feeding mechanism (2) includes a feeding port (201), a forced feeding machine base (202) and a driving motor (203). The output end of the forced feeding machine base (202) is connected to the heating bin (104), and a warning mechanism (3) is installed on the forced feeding machine base (202). The warning mechanism (3) includes a flange ring (301). The flange ring (301) is detachably connected to the forced feeding machine base (202). An installation seat (302) is arranged on the top of the flange ring (301), and a first vibration sensor (303) is threadedly connected to the top of the installation seat (302). A transmission line (304) is arranged on one side of the first vibration sensor (303), and the transmission line (304) is connected to an external control terminal.

2. The BOPET biaxially oriented film extrusion device according to claim 1, wherein: The first vibration sensor (303) is used to detect the blockage condition of the feeding mechanism (2). The first vibration sensor (303) is used to control the driving motor (203). When blockage occurs, the first vibration sensor (303) can effectively cause the feeding mechanism (2) to stop urgently.

3. The BOPET biaxially oriented film extrusion device according to claim 1, wherein: A heater (105) is arranged on the top of the heating bin (104), and a second vibration sensor (4) is arranged on one side of the heater (105).

4. The BOPET biaxially oriented film extrusion device according to claim 3, characterized in that: The second vibration sensor (4) is used to detect the vibration of the heating bin (104) and to detect the condition of two screws (107) inside the heating bin (104).

5. The BOPET biaxially oriented film extrusion device according to claim 1, wherein: A motor box (102) is arranged on one side of the base (101), a gear box (103) is arranged on one side of the motor box (102), and the output end of the motor inside the motor box (102) is connected to the inside of the gear box (103).

6. The BOPET biaxially oriented film extrusion device according to claim 1, wherein: A heating bin (104) is installed on the side of the gear box (103) away from the motor box (102). Two screws (107) are rotatably connected inside the heating bin (104), and one ends of the two screws (107) are connected to the gears inside the gear box (103).

7. The BOPET biaxially oriented film extrusion device according to claim 1, characterized in that: The motor inside the motor box (102) is used to drive the gears inside the gear box (103) to rotate, and after the gears rotate, the two screws (107) can be effectively caused to rotate.

8. The BOPET biaxially oriented film extrusion device according to claim 6, characterized in that: A plurality of extrusion holes (108) arranged in an annular array at equal intervals are formed at the other ends of the two screws (107). A lead-out head (106) is arranged at one end of the heating bin (104) away from the gear box (103), and the lead-out head (106) is used to lead out the molten film raw material.

9. The BOPET biaxially oriented film extrusion device according to claim 1, characterized in that: The bottom of the feeding port (201) is provided with a forced feeding machine base (202), and the forced feeding machine base (202) is fixedly connected to the gear box (103).

10. The BOPET biaxially oriented film extrusion device according to claim 1, wherein: A driving motor (203) is arranged on one side of the forced feeding machine base (202), and the driving motor (203) is used to cause the forced feeding machine base (202) to feed forcibly.

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