An extrusion device for the production of organic solvent membranes

Abstract

The utility model provides an extrusion device of organic solvent diaphragm production relates to diaphragm extrusion field. Including organism, the one side of organism is provided with extrusion box, rotates and connects with two -way screw rod on extrusion box inner wall, two -way screw rod outside thread sleeve is equipped with the mirror image symmetry of two thread sleeve plates, two mounting brackets are arranged in the extrusion box and slide, two thread sleeve plates are fixedly connected in one side of two mounting brackets respectively. The extrusion device of organic solvent diaphragm production. The device passes through the setting two -way screw rod, so can adjust the height of two groups of extrusion roller and the height of wrinkle component simultaneously, so when producing the diaphragm of different thickness, the height of extrusion roller and wrinkle component can be adjusted and keep the diaphragm central transmission simultaneously, thereby reduce the quality influence brought by diaphragm transmission, the device can keep extrusion roller and wrinkle component on the same horizontal line, reduce the amplitude of diaphragm fluctuation, to guarantee the uniform stress of diaphragm in transmission process.

Description

Technical Field

[0001] This utility model relates to an extrusion device for producing organic solvent films, specifically an extrusion device for producing organic solvent films, belonging to the field of film extrusion technology. Background Technology

[0002] Organic solvent membranes have important applications in many fields. In the pharmaceutical industry, they can be used to prepare oral instant-dissolving membranes and transdermal drug delivery membranes; in the chemical industry, they can be used to prepare organic solvent reverse osmosis membranes. The production of organic solvent membranes typically requires dissolving polymers in organic solvents to form a solution, which is then processed into shape using an extrusion device. Extruders are commonly used equipment in film production. Their working principle is that plastic material enters the extruder from the hopper and is conveyed forward by the rotation of the screw. During this forward movement, the material is heated by the barrel, and the shearing and compression effects from the screw melt the material. Finally, it is processed into shape through the die in the extruder head.

[0003] In the prior art, an extruder for producing polyester film sheets with authorization announcement number CN117207419A belongs to the field of polyester film sheet processing technology. It includes an extrusion chamber, an adjustment component for adjusting the distance between the upper and lower extrusion rollers is provided at the top of the upper extrusion roller, and a wrinkle removal component is provided in the extrusion chamber that is connected to the adjustment component and progressively smooths the wrinkles on the surface of the sheet.

[0004] Currently, extrusion devices for organic solvent film production typically adjust the height of the upper extrusion roller and the top wrinkle removal component by setting an adjustment component, while keeping the height of the lower extrusion roller and the bottom wrinkle removal component unchanged. This is to facilitate the extrusion of films of different thicknesses. However, this method can cause significant height fluctuations in the extruded film during transport, which in turn affects the forming quality and integrity of the film. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide an extrusion device for producing organic solvent films in order to solve the above-mentioned problems, thereby addressing the issue of poor practicality of existing extrusion devices for producing organic solvent films.

[0006] (II) Technical Solution This utility model is achieved through the following technical solution: an extrusion device for producing organic solvent films. It includes a machine body, an extrusion chamber on one side of the machine body, a bidirectional screw rotatably connected to the inner wall of the extrusion chamber, two mirror-symmetrically arranged threaded sleeves threaded onto the outer side of the bidirectional screw, two mounting brackets slidably disposed inside the extrusion chamber, the two threaded sleeves being fixedly connected to one side of the two mounting brackets respectively, an extrusion roller and a wrinkling assembly rotatably connected to one side of each mounting bracket, and a rotating assembly for driving the extrusion roller to rotate inside the extrusion chamber.

[0007] Preferably, the wrinkling assembly includes a wrinkling roller rotatably connected to one side of the mounting frame, a wrinkling plate arranged in a circumferential array fixedly connected to the outer side of the wrinkling roller, a hexagonal rod rotatably connected to the inner wall of the extrusion box, two sliding sleeves slidably sleeved on the outer side of the hexagonal rod, a bevel gear rotatably connected to the end of the sliding sleeve and the end of the wrinkling roller, two bevel gears of the same group meshing with each other, and two sliding sleeves rotatably connected to one side of the two mounting frames respectively.

[0008] Preferably, the rotating assembly includes a hexagonal rod 2 rotatably connected to the inner wall of the extrusion box, two sliding sleeve plates 2 are slidably sleeved on the outer side of the hexagonal rod 2, and bevel gears 2 are fixedly connected to the ends of the sliding sleeve plates 2 and the ends of the extrusion rollers, the two bevel gears 2 in the same group are meshed with each other, and the two sliding sleeve plates 2 are respectively rotatably connected to one side of two mounting brackets.

[0009] Preferably, a spur gear one is fixedly sleeved at the end of the wrinkling roller, and a spur gear two is fixedly sleeved at the end of the extrusion roller, with the spur gear two and the spur gear one meshing with each other.

[0010] Preferably, a mounting groove is provided on one side of the mounting bracket, and the first spur gear, the second spur gear, the first sliding sleeve plate, and the second sliding sleeve plate are all located inside the mounting groove, with a sealing plate installed at the opening of the mounting groove.

[0011] Preferably, four guide rods are installed on the inner wall of the extrusion box, and through guide holes are provided at the four corners of the mounting frame, with the guide rods slidably disposed inside the guide holes.

[0012] Preferably, two servo motors are installed on the inner wall of the extrusion box, and the output shafts of the two servo motors are fixedly connected to the ends of the bidirectional screw and the two ends of the hexagonal rod, respectively.

[0013] Preferably, multiple rotating rollers are rotatably connected to the inner wall of the mounting frame, and the top of the rotating rollers is flush with the upper part of the extrusion rollers in the same group.

[0014] This invention provides an extrusion device for producing organic solvent films, which has the following beneficial effects: 1. This device, by setting a bidirectional screw, can simultaneously adjust the height of the upper and lower sets of extrusion rollers and wrinkling components. Therefore, when producing films of different thicknesses, the height of the extrusion rollers and wrinkling components can be adjusted accordingly while keeping the film centered during transport. This reduces the quality impact caused by film transport. The device can keep the extrusion rollers and wrinkling components on the same horizontal line, reducing the amplitude of film height fluctuations, so as to ensure that the film is subjected to uniform force during transport.

[0015] 2. By setting up a wrinkle-removing roller, the relative speed between the diaphragm and the wrinkle-removing plate is increased by using the forward conveying of the diaphragm and the reverse rotation of the wrinkle-removing roller, which can more effectively remove wrinkles on the surface of the diaphragm and improve wrinkle removal efficiency.

[0016] 3. By setting up multiple rotating rollers, the device can more effectively support the diaphragm by cooperating with the extrusion rollers and the wrinkling assembly, and further reduce the amplitude of the diaphragm's height fluctuations. At the same time, it can also reduce the problem of the diaphragm being subjected to greater scraping force at the bottom and less force at the top due to excessive height fluctuations. This ensures that the diaphragm is subjected to more uniform force during the transmission process and improves the quality of diaphragm production. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the extrusion box of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the mounting bracket of this utility model; Figure 5 This is a three-dimensional schematic diagram of the cooperation between the wrinkle-scraping component and the rotating component of this utility model.

[0018] Explanation of key component symbols: 1. Machine body; 2. Extrusion box; 3. Bidirectional screw; 4. Mounting frame; 5. Extrusion roller; 6. Wrinkling assembly; 601. Wrinkling roller; 602. Wrinkling plate; 603. Hexagonal rod one; 604. Sliding sleeve one; 605. Bevel gear one; 7. Rotating assembly; 701. Hexagonal rod two; 702. Sliding sleeve two; 703. Bevel gear two; 8. Spur gear one; 9. Spur gear two; 10. Mounting groove; 11. Guide rod; 12. Servo motor; 13. Rotating roller. Detailed Implementation

[0019] This invention provides an extrusion apparatus for producing organic solvent films.

[0020] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The machine includes a body 1, and an extrusion box 2 is provided on one side of the body 1. The machine is characterized in that: a bidirectional screw 3 is rotatably connected to the inner wall of the extrusion box 2, and two threaded sleeve plates are threaded on the outer side of the bidirectional screw 3 and arranged in a mirror symmetrical manner. Two mounting brackets 4 are slidably arranged inside the extrusion box 2. The two threaded sleeve plates are respectively fixedly connected to one side of the two mounting brackets 4. An extrusion roller 5 and a wrinkling component 6 are rotatably connected to one side of the mounting bracket 4. A rotating component 7 that drives the extrusion roller 5 to rotate is provided inside the extrusion box 2. Specifically, the discharge port at one end of the machine body 1 is connected to the through-hole opened on one side of the extrusion box 2. The center between the two mounting brackets 4 and the center of the bidirectional screw 3 are horizontally coincident or flush with the center of the through-hole. Two external threads are provided on the outer side of the bidirectional screw 3 in a mirror symmetrical arrangement, and the two mounting brackets 4 are respectively threaded onto the two external threads in the bidirectional screw 3.

[0021] Please see Figure 4 and Figure 5 The rotating assembly 7 includes a hexagonal rod 701 rotatably connected to the inner wall of the extrusion box 2. Two sliding sleeve plates 702 are slidably sleeved on the outer side of the hexagonal rod 701. Bevel gears 703 are fixedly connected to the ends of the sliding sleeve plates 702 and the ends of the extrusion roller 5. The two bevel gears 703 in the same group are meshed with each other. The two sliding sleeve plates 702 are rotatably connected to one side of the two mounting brackets 4 respectively. Specifically, the vertical section of the hexagonal rod 2 701 is a hexagonal structure, the top of the sliding sleeve 2 702 has a through hexagonal cavity, and the two bevel gears 2 703 in the same group are arranged perpendicularly to each other.

[0022] Please see Figure 4 and Figure 5 The end of the wrinkling roller 601 is fixedly sleeved with a spur gear 8, and the end of the extrusion roller 5 is fixedly sleeved with a spur gear 9. The spur gear 9 and the spur gear 8 mesh with each other. Specifically, the outer diameter of spur gear 8 is smaller than that of spur gear 9. Through the cooperation of spur gear 9 and spur gear 8, the rotational speed of the crease roller 601 can be increased while the rotational speed of the extrusion roller 5 remains unchanged. In this way, when the film slowly passes through the crease roller 601, the crease roller 601 can rotate quickly; the film is conveyed in the forward direction, while the crease roller 601 rotates in the reverse direction.

[0023] Please see Figure 4 and Figure 5 The mounting bracket 4 has a mounting groove 10 on one side. The first spur gear 8, the second spur gear 9, the first sliding sleeve 604 and the second sliding sleeve 702 are all located inside the mounting groove 10. A sealing plate is installed at the opening of the mounting groove 10. Specifically, the mounting slot 10 serves as a seal to prevent dust and impurities from falling into the drive position of structures such as the spur gear 8.

[0024] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 Four guide rods 11 are installed on the inner wall of the extrusion box 2. Through guide holes are opened at the four corners of the mounting frame 4, and the guide rods 11 are slidably set inside the guide holes.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 Two servo motors 12 are installed on the inner wall of the extrusion box 2. The output shafts of the two servo motors 12 are fixedly connected to the end of the bidirectional screw 3 and the end of the hexagonal rod 701, respectively. Specifically, the servo motor 12 is electrically connected to the controller, the controller is electrically connected to the power supply, and the controller is installed in the extrusion box 2. Since the controller is an existing technology device, its specific form, usage and installation method will not be described in detail in this application. The models of the controller and servo motor 12 are not specifically limited, and the appropriate equipment shall prevail.

[0026] Example 2, please refer to Figure 4 and Figure 5 The wrinkling assembly 6 includes a wrinkling roller 601 rotatably connected to one side of the mounting frame 4. A wrinkling plate 602 arranged in a circular array is fixedly connected to the outer side of the wrinkling roller 601. A hexagonal rod 603 is rotatably connected to the inner wall of the extrusion box 2. Two sliding sleeves 604 are slidably sleeved on the outer side of the hexagonal rod 603. A bevel gear 605 is fixedly connected to the end of the sliding sleeve 604 and the end of the wrinkling roller 601. The two bevel gears 605 in the same group are meshed with each other. The two sliding sleeves 604 are rotatably connected to one side of the two mounting frames 4 respectively. Specifically, the thickness of the multiple wrinkling plates 602 arranged on the outer side of the wrinkling roller 601 decreases sequentially in an arithmetic progression.

[0027] Example 3, please refer to Figure 3 and Figure 4 Multiple rotating rollers 13 are rotatably connected to the inner wall of the mounting frame 4, and the top of the rotating rollers 13 is flush with the upper part of the extrusion rollers 5 in the same group. Specifically, by setting multiple rotating rollers 13, the rotating rollers 13 can distribute the overall weight of the diaphragm and transport the diaphragm smoothly, thereby reducing the amplitude of the diaphragm's height fluctuations. At the same time, they can also reduce the pressure of the diaphragm on the wrinkling roller 601 below the diaphragm, thus facilitating the improvement of the uniformity of the pleating of the diaphragm. The height of each rotating roller 13, the upper part of the pressure roller 5, and the upper part of the wrinkling plate 602 at the top of the wrinkling roller 601 are all horizontal and flush with each other. The contact time is extended: the setting of the rotating rollers 13 can better support the diaphragm, making it more evenly stressed during transportation and avoiding damage to the diaphragm due to excessive local stress.

[0028] Working principle: The machine body 1 is used to extrude and produce film. The extruded film needs to pass through the extrusion box 2 and the traction mechanism. The film passes through the extrusion roller 5 and the wrinkling assembly 6 in the extrusion box 2. At this time, the film is located between the two extrusion rollers 5 and is squeezed by the extrusion rollers 5. The film is located between the two wrinkling rollers 601 and is wrinkled on the upper and lower sides of the film by the wrinkling rollers 601. In this process, by starting the corresponding servo motor 12, the servo motor 12 drives the bidirectional screw 3, which in turn drives the two mounting brackets 4 to move closer or further apart, thereby adjusting the distance between the two extrusion rollers 5 and the distance between the two wrinkling rollers 601. Start the corresponding servo motor 12, which drives the hexagonal rod 701 to rotate. The hexagonal rod 701 then drives the sliding sleeve 702 to rotate. The sliding sleeve 702, through the bevel gear 703, drives the two extrusion rollers 5 to rotate relative to each other. The extrusion rollers 5, through the spur gear 9, drive the spur gear 8 to rotate, and through the spur gear 8, drive the corresponding wrinkling roller 601 to rotate. The wrinkling roller 601, through the cooperation of the bevel gear 605 and the sliding sleeve 604, drives the hexagonal rod 603 to rotate, and causes the two wrinkling rollers 601 to rotate relative to each other. Due to the cooperation of the spur gear 9 and the spur gear 8, the extrusion rollers 5 and wrinkling rollers 601 in the same row rotate relative to each other.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An extrusion apparatus for producing organic solvent films, comprising a body (1), wherein an extrusion box (2) is provided on one side of the body (1), characterized in that: A bidirectional screw (3) is rotatably connected to the inner wall of the extrusion box (2). Two threaded sleeves are symmetrically arranged on the outer side of the bidirectional screw (3). Two mounting brackets (4) are slidably arranged inside the extrusion box (2). The two threaded sleeves are fixedly connected to one side of the two mounting brackets (4). An extrusion roller (5) and a wrinkle-removing assembly (6) are rotatably connected to one side of the mounting bracket (4). A rotating assembly (7) that drives the extrusion roller (5) to rotate is provided inside the extrusion box (2).

2. The extrusion apparatus for producing organic solvent films according to claim 1, characterized in that: The wrinkling assembly (6) includes a wrinkling roller (601) rotatably connected to one side of the mounting frame (4). A wrinkling plate (602) arranged in a circular array is fixedly connected to the outside of the wrinkling roller (601). A hexagonal rod (603) is rotatably connected to the inner wall of the extrusion box (2). Two sliding sleeves (604) are slidably sleeved on the outside of the hexagonal rod (603). A bevel gear (605) is fixedly connected to the end of the sliding sleeve (604) and the end of the wrinkling roller (601). The two bevel gears (605) in the same group are meshed with each other. The two sliding sleeves (604) are rotatably connected to one side of the two mounting frames (4).

3. The extrusion apparatus for producing organic solvent films according to claim 1, characterized in that: The rotating assembly (7) includes a hexagonal rod (701) rotatably connected to the inner wall of the extrusion box (2). Two sliding sleeves (702) are slidably sleeved on the outer side of the hexagonal rod (701). Bevel gears (703) are fixedly connected to the ends of the sliding sleeves (702) and the extrusion roller (5). The two bevel gears (703) in the same group are meshed with each other. The two sliding sleeves (702) are rotatably connected to one side of the two mounting brackets (4).

4. An extrusion apparatus for producing organic solvent films according to claim 2, characterized in that: The end of the wrinkling roller (601) is fixedly fitted with a spur gear one (8), and the end of the extrusion roller (5) is fixedly fitted with a spur gear two (9). The spur gear two (9) and the spur gear one (8) are meshed with each other.

5. An extrusion apparatus for producing organic solvent films according to claim 4, characterized in that: The mounting bracket (4) has a mounting groove (10) on one side. The first spur gear (8), the second spur gear (9), the first sliding sleeve plate (604) and the second sliding sleeve plate (702) are all located inside the mounting groove (10). A sealing plate is installed at the opening of the mounting groove (10).

6. An extrusion apparatus for producing organic solvent films according to claim 1, characterized in that: Four guide rods (11) are installed on the inner wall of the extrusion box (2). The four corners of the mounting frame (4) are provided with through guide holes. The guide rods (11) are slidably disposed inside the guide holes.

7. An extrusion apparatus for producing organic solvent films according to claim 1, characterized in that: Two servo motors (12) are installed on the inner wall of the extrusion box (2). The output shafts of the two servo motors (12) are fixedly connected to the end of the bidirectional screw (3) and the end of the hexagonal rod (701), respectively.

8. An extrusion apparatus for producing organic solvent films according to claim 1, characterized in that: Multiple rotating rollers (13) are rotatably connected to the inner wall of the mounting frame (4), and the top of the rotating rollers (13) is flush with the upper part of the extrusion rollers (5) of the same group.

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