Preparation device of antibacterial polymeric membrane

Abstract

The utility model relates to the field of polymeric membrane preparation, and discloses an antibacterial polymeric membrane preparation device which comprises a raw material mixing tank, an adjusting mechanism is arranged in the raw material mixing tank, a lifting mechanism is arranged at the top of the raw material mixing tank, and the adjusting mechanism comprises a limiting rotary drum. The bottom end of the limiting rotary drum is rotatably connected to the top of the raw material mixing tank, the inner wall of the limiting rotary drum is slidably connected with a limiting conveying pipe, the outer wall of the limiting conveying pipe is fixedly connected with a supporting pipe, the outer wall of the supporting pipe is slidably connected with a pressed pipe, and the pressed pipe is elastically connected with the supporting pipe through a spring; a conveying opening is formed in the bottom of the pressed pipe. According to the raw material mixing tank, the adjusting mechanism is arranged, so that the feeding position of the high-molecular raw material can be changed, the dynamic change of the feeding position is realized, the high-molecular raw material can be uniformly distributed on the inner wall of the raw material mixing tank, local accumulation of the raw material is avoided, and the mixing uniformity of the raw material is improved.

Description

Technical Field

[0001] This utility model relates to the field of polymer membrane preparation, and in particular to an apparatus for preparing an antibacterial polymer membrane. Background Technology

[0002] The preparation of antibacterial polymer membranes refers to the process of using polymer materials as a matrix and introducing substances with antibacterial properties into the polymer membrane through specific processes and methods, or performing surface modification on the polymer membrane to enable it to inhibit or kill bacteria and other microorganisms.

[0003] Existing methods for preparing antibacterial polymer films typically begin by selecting a suitable polymer material as the matrix, such as polyolefins, polyesters, and polyamides, and then imparting antibacterial properties through various means. Common methods include adding antibacterial agents, such as inorganic antibacterial agents (compounds loaded with metal ions like silver, zinc, and copper), organic antibacterial agents (such as quaternary ammonium salts and biguanides), or natural antibacterial agents (such as chitosan and plant extracts), which are then uniformly mixed into the polymer material. Finally, film is formed using molding processes such as solution casting, melt extrusion, and blow molding.

[0004] In the existing process of preparing antibacterial polymer membranes, the feeding position of some raw material mixing equipment is fixed, which makes it easy for polymer raw materials to accumulate locally in the mixing tank. This local accumulation not only makes the raw materials mixed unevenly, affecting the full combination of antibacterial agents and polymer materials, reducing the antibacterial effect and performance stability of the antibacterial polymer membrane, but also prolongs the mixing time and reduces production efficiency. Therefore, a device for preparing antibacterial polymer membranes is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an apparatus for preparing antibacterial polymer membranes, which aims to solve the problem of local accumulation of raw materials in the mixing tank due to the fixed feeding position during the preparation of antibacterial polymer membranes in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a device for preparing an antibacterial polymer membrane, comprising a raw material mixing tank, an adjustment mechanism provided inside the raw material mixing tank, a lifting mechanism provided at the top of the raw material mixing tank, the adjustment mechanism comprising a limiting rotating cylinder, the bottom end of the limiting rotating cylinder being rotatably connected to the top of the raw material mixing tank, a limiting conveying pipe being slidably connected to the inner wall of the limiting rotating cylinder, a support pipe being fixedly connected to the outer wall of the limiting conveying pipe, a pressure-bearing pipe being slidably connected to the outer wall of the support pipe, the pressure-bearing pipe being elastically connected to the support pipe via a spring, a conveying port being provided at the bottom of the pressure-bearing pipe, and an extrusion block being fixedly connected to the inner wall of the raw material mixing tank.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism also includes a motor, the outer wall of which is fixedly connected to the top of the raw material mixing tank.

[0009] As a further description of the above technical solution:

[0010] The adjustment mechanism also includes a helical gear, the inner wall of which is fixedly connected to the outer wall of the motor output shaft.

[0011] As a further description of the above technical solution:

[0012] The adjustment mechanism also includes a second helical gear, the inner wall of which is fixedly connected to the outer wall of the limiting rotating cylinder.

[0013] As a further description of the above technical solution:

[0014] The adjustment mechanism also includes a rotating rod, the top end of which is fixedly connected to the bottom end of the limiting conveying pipe, and a stirring rod is fixedly connected to the outer wall of the rotating rod.

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the inner wall of the pressure-bearing tube, and the other end of the spring is fixedly connected to the outer wall of the support tube.

[0017] As a further description of the above technical solution:

[0018] The lifting mechanism includes a hydraulic rod, the bottom of which is fixedly connected to the top of the raw material mixing tank, and a support plate is fixedly connected to the top of the inner rod of the hydraulic rod.

[0019] As a further description of the above technical solution:

[0020] The lifting mechanism also includes a rotary joint, the bottom of which is rotatably connected to the top of the limiting conveying pipe, and the outer wall of the rotary joint is fixedly connected to the inner wall of the support plate.

[0021] As a further description of the above technical solution:

[0022] The lifting mechanism also includes a feed pipe, the bottom end of which is fixedly connected to the top of the rotary joint.

[0023] As a further description of the above technical solution:

[0024] The lifting mechanism also includes a discharge port, which is located at the bottom of the raw material mixing tank.

[0025] This utility model has the following beneficial effects:

[0026] 1. In this utility model, by setting an adjustment mechanism, the feeding position of the polymer raw material can be changed, realizing the dynamic change of the feeding position, so that the polymer raw material can be evenly distributed on the inner wall of the raw material mixing tank, avoiding local accumulation of raw materials and improving the uniformity of raw material mixing.

[0027] 2. In this utility model, by setting up a lifting mechanism, the height of the stirring rod can be flexibly adjusted according to the different characteristics of the polymer raw materials, the mixing stage and the actual stirring needs, so that the stirring rod can play the best stirring role in the appropriate position. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main structure of the apparatus for preparing an antibacterial polymer membrane according to the present invention;

[0029] Figure 2 This is a partial cross-sectional view of the raw material mixing tank of the apparatus for preparing an antibacterial polymer membrane according to the present invention.

[0030] Figure 3 This is a top view cross-sectional diagram of the raw material mixing tank of the apparatus for preparing an antibacterial polymer membrane according to this utility model.

[0031] Figure 4 This is a schematic cross-sectional view of the pressure tube and support tube of the apparatus for preparing an antibacterial polymer membrane according to this utility model.

[0032] Legend:

[0033] 1. Raw material mixing tank; 2. Adjustment mechanism; 211. Limiting rotary drum; 212. Limiting conveying pipe; 213. Support pipe; 214. Pressure pipe; 215. Spring; 216. Conveying port; 217. Extrusion block; 218. Motor; 219. Helical gear one; 220. Helical gear two; 221. Rotating rod; 222. Stirring rod; 3. Lifting mechanism; 311. Hydraulic rod; 312. Support plate; 313. Rotary joint; 314. Feed pipe; 315. Discharge port. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 2-4The present invention provides an embodiment of an antibacterial polymer membrane preparation device, comprising a raw material mixing tank 1, which serves as the core container for the raw material mixing process. An adjustment mechanism 2 is provided inside the raw material mixing tank 1 to adjust the raw material feeding position, thereby ensuring uniform distribution of the raw materials. A lifting mechanism 3 is provided at the top of the raw material mixing tank 1 to adjust the height of the stirring rod 222 to adapt to different stirring requirements. The adjustment mechanism 2 includes a limiting rotating cylinder 211, the bottom end of which is rotatably connected to the top of the raw material mixing tank 1. The limiting rotating cylinder 211 can rotate under the drive of a motor 218. A limiting conveying pipe 212 is slidably connected to the inner wall of the limiting rotating cylinder 211. The limiting conveying pipe 212 can rotate under the drive of the limiting rotating cylinder 211. Simultaneously, a rectangular block on its outer wall cooperates with a rectangular groove on the inner wall of the limiting rotating cylinder 211 to achieve rotational transmission, and can also achieve rotational transmission in a certain vertical direction. The limiting conveying pipe 212 has a fixed support pipe 213 on its outer wall. The support pipe 213 provides support for the pressure pipe 214 and rotates under the drive of the limiting conveying pipe 212. The pressure pipe 214 is slidably connected to the outer wall of the support pipe 213 and can slide on the support pipe 213. Through contact with the extrusion block 217 and the elastic action of the spring 215, the feeding position is further changed. The pressure pipe 214 is elastically connected to the support pipe 213 through the spring 215. The spring 215 provides elastic restoring force for the sliding of the pressure pipe 214. The bottom of the pressure pipe 214 has a conveying port 216, which is the discharge channel for the polymer raw material to enter the inner wall of the raw material mixing tank 1. The extrusion block 217 is fixedly connected to the inner wall of the raw material mixing tank 1. The extrusion block 217 contacts and extrudes the pressure pipe 214, causing the pressure pipe 214 to slide on the support pipe 213 and change the feeding position.

[0036] Reference Figures 1-3The adjusting mechanism 2 also includes a motor 218, whose outer wall is fixedly connected to the top of the raw material mixing tank 1. The motor 218 can drive the first helical gear 219 to rotate through its output shaft. The adjusting mechanism 2 also includes the first helical gear 219, whose inner wall is fixedly connected to the outer wall of the output shaft of the motor 218. The first helical gear 219 can rotate under the drive of the motor 218. The adjusting mechanism 2 also includes a second helical gear 220, whose inner wall is fixedly connected to the outer wall of the limiting rotating cylinder 211. The second helical gear 220 meshes with the first helical gear 219 to transmit power to the limiting rotating cylinder 211. The adjusting mechanism 2 also includes a rotating rod. 221. The top end of the rotating rod 221 is fixedly connected to the bottom end of the limiting conveying pipe 212. The rotating rod 221 rotates under the drive of the limiting conveying pipe 212, which in turn drives the stirring rod 222 to rotate. The stirring rod 222 is fixedly connected to the outer wall of the rotating rod 221. The stirring rod 222 rotates under the drive of the rotating rod 221 to stir and mix the polymer raw materials. One end of the spring 215 is fixedly connected to the inner wall of the pressure pipe 214, and the other end of the spring 215 is fixedly connected to the outer wall of the support pipe 213. The spring 215 is stretched when the pressure pipe 214 is squeezed and slides, and resets when the pressure is removed, so as to ensure the dynamic adjustment of the position of the pressure pipe 214.

[0037] Reference Figure 1 , Figure 2 The lifting mechanism 3 includes a hydraulic rod 311, the bottom of which is fixedly connected to the top of the raw material mixing tank 1. The hydraulic rod 311 pushes the support plate 312 up and down through the extension and retraction of its inner rod, thereby adjusting the height of the stirring rod 222. The support plate 312 is fixedly connected to the top of the inner rod of the hydraulic rod 311. The support plate 312 is used to support the limiting conveying pipe 212, the rotary joint 313, and the feed pipe 314. The lifting mechanism 3 also includes a rotary joint 313, the bottom of which is rotatably connected to the top of the limiting conveying pipe 212. The outer wall of the rotary joint 313 is connected to the support plate 312. The inner wall is fixedly connected, and the rotary joint 313, while ensuring the rotation of the limiting conveying pipe 212, cooperates with the support plate 312 to realize its lifting and lowering. The lifting mechanism 3 also includes a feed pipe 314, the bottom end of which is fixedly connected to the top of the rotary joint 313. The feed pipe 314 is the feeding channel of the polymer raw material. By connecting with the rotary joint 313, it can be lifted and lowered with the whole and maintain the conveying of raw materials. The lifting mechanism 3 also includes a discharge port 315, which is opened at the bottom of the raw material mixing tank 1. The discharge port 315 is used to discharge the raw material after stirring and mixing for subsequent processing.

[0038] Working principle: In the preparation of antibacterial polymer membrane, polymer raw materials are first added through feed pipe 314. The raw materials enter the support pipe 213 through limiting conveying pipe 212, and finally exit through conveying port 216 at the bottom of pressure pipe 214, allowing the raw materials to enter the inner wall of raw material mixing tank 1. By starting motor 218, the output shaft of motor 218 drives helical gear 219 fixedly connected to the outer wall to rotate, thereby driving helical gear 220 meshing with the outer wall of helical gear 219 to rotate, which in turn drives limiting rotating cylinder 211 fixedly connected to the inner wall of helical gear 220 to rotate. Since the inner wall of limiting rotating cylinder 211 has a rectangular groove, and the outer wall of limiting conveying pipe 212 is fixedly connected with a corresponding rectangular block, limiting rotating cylinder 211 can drive limiting conveying pipe 212 to rotate, and limiting conveying pipe 212 can drive support pipe 213 and pressure pipe 214 to rotate, thereby changing the feeding position of polymer raw materials.

[0039] When the support tube 213 and the pressure tube 214 rotate, when the pressure tube 214 comes into contact with the extrusion block 217, the extrusion block 217 will squeeze the pressure tube 214, and the pressure tube 214 will slide on the outer wall of the support tube 213, causing the spring 215 to be stretched. When the pressure tube 214 does not come into contact with the extrusion block 217, the pressure tube 214 will reset under the action of the spring 215, so that the feeding position of the polymer raw material can be further changed, thereby making the polymer raw material evenly distributed on the inner wall of the raw material mixing tank 1. When the limiting conveying tube 212 rotates, it drives the rotating rod 221 fixedly connected to the bottom end of the limiting conveying tube 212 to rotate, which drives the stirring rod 222 fixedly connected to the outer wall of the rotating rod 221 to rotate. The stirring rod 222 can stir the polymer raw material.

[0040] When it is necessary to adjust the height of the stirring rod 222, the hydraulic rod 311 is activated, causing the inner rod of the hydraulic rod 311 to push the support plate 312 fixedly connected at the top to rise. The support plate 312 drives the limiting conveying pipe 212, the rotary joint 313 and the feed pipe 314 to rise, thereby driving the rotating rod 221 fixedly connected at the bottom of the limiting conveying pipe 212 to rise. Thus, the height of the stirring rod 222 can be adjusted according to the actual stirring requirements. The stirred raw materials can be discharged through the discharge port 315.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for preparing an antibacterial polymer membrane, comprising a raw material mixing tank (1), characterized in that: The raw material mixing tank (1) is equipped with an adjustment mechanism (2) inside, and a lifting mechanism (3) is provided on the top of the raw material mixing tank (1); The adjusting mechanism (2) includes a limiting rotating cylinder (211), the bottom end of which is rotatably connected to the top of the raw material mixing tank (1). A limiting conveying pipe (212) is slidably connected to the inner wall of the limiting rotating cylinder (211). A support pipe (213) is fixedly connected to the outer wall of the limiting conveying pipe (212). A pressure-bearing pipe (214) is slidably connected to the outer wall of the support pipe (213). The pressure-bearing pipe (214) is elastically connected to the support pipe (213) through a spring (215). A conveying port (216) is opened at the bottom of the pressure-bearing pipe (214). An extrusion block (217) is fixedly connected to the inner wall of the raw material mixing tank (1).

2. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The adjustment mechanism (2) also includes a motor (218), the outer wall of which is fixedly connected to the top of the raw material mixing tank (1).

3. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The adjustment mechanism (2) also includes a helical gear (219), the inner wall of which is fixedly connected to the outer wall of the output shaft of the motor (218).

4. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The adjustment mechanism (2) also includes a second helical gear (220), the inner wall of which is fixedly connected to the outer wall of the limiting rotating cylinder (211).

5. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The adjustment mechanism (2) also includes a rotating rod (221), the top end of which is fixedly connected to the bottom end of the limiting conveying pipe (212), and a stirring rod (222) is fixedly connected to the outer wall of the rotating rod (221).

6. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: One end of the spring (215) is fixedly connected to the inner wall of the pressure tube (214), and the other end of the spring (215) is fixedly connected to the outer wall of the support tube (213).

7. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The lifting mechanism (3) includes a hydraulic rod (311), the bottom of which is fixedly connected to the top of the raw material mixing tank (1), and a support plate (312) is fixedly connected to the top of the inner rod of the hydraulic rod (311).

8. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The lifting mechanism (3) also includes a rotary joint (313), the bottom of which is rotatably connected to the top of the limiting conveying pipe (212), and the outer wall of the rotary joint (313) is fixedly connected to the inner wall of the support plate (312).

9. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The lifting mechanism (3) also includes a feed pipe (314), the bottom end of which is fixedly connected to the top of the rotary joint (313).

10. The apparatus for preparing an antibacterial polymer membrane according to claim 1, characterized in that: The lifting mechanism (3) also includes a discharge port (315), which is located at the bottom of the raw material mixing tank (1).

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