Mixing equipment for producing medical polyvinyl chloride particles

Abstract

The utility model relates to the technical field of mixing equipment, and discloses mixing equipment for producing medical polyvinyl chloride particles, which comprises a mixing box, and glass is mounted on the outer surface of the mixing box. The mixing equipment for medical polyvinyl chloride particle production is provided with a motor, a rotating rod, stirring rods, springs, a connecting block, an annular plate, a scraping plate and a fixing bolt, the motor is started to drive the multiple stirring rods to fully stir and mix polyvinyl chloride particles in the mixing box, and the annular plate at one end of each stirring rod can be close to the inner wall of the mixing box; in the rotating process of a stirring rod, an annular plate can be driven to synchronously rotate, the annular plate can clean the residual polyvinyl chloride particles on the inner wall, and in the rotating process of a rotating rod, a scraping plate can be driven to rotate on the inner wall of the mixing box, so that the polyvinyl chloride particles at the bottom of the mixing box can be mixed and stirred; the mixing efficiency of the polyvinyl chloride particles is greatly improved, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing equipment, in particular to mixing equipment for producing medical polyvinyl chloride particles. Background Art

[0002] Medical PVC granules are an important raw material for the manufacture of a variety of medical devices, such as various catheters, infusion devices, respiratory masks, blood bags, etc. In these applications, the performance characteristics of PVC, such as flexibility and chemical stability, are fully utilized, while meeting the safety and functional requirements of the medical process.

[0003] Medical PVC products often require specific flexibility to adapt to different medical uses. By mixing different types and proportions of plasticizers with PVC particles, the flexibility of the product can be precisely adjusted. The mixing process helps to improve the mechanical properties of medical PVC, such as tensile strength and impact resistance.

[0004] The prior art patent document CN214323849U provides a polyvinyl chloride raw material mixing device, which can fully mix the polyvinyl chloride raw materials and improve the processing quality of post-filter polyvinyl chloride products. Among them, the first stirring component used can fully stir and mix the raw materials, and the stirring blade component used will not damage the raw material particles during stirring, and the blades will not deform; the curved blades used in the second stirring component can reduce the pressure on the blade surface, extend its service life, and further improve the mixing efficiency.

[0005] In the above-mentioned prior art, although the mixing device can achieve sufficient mixing of the polyvinyl chloride raw materials and improve the processing quality of the post-filtered polyvinyl chloride products, the raw materials will remain on the inner wall of the mixing box during the mixing of the polyvinyl chloride raw materials in the mixing device of the patented technology, which will cause insufficient material feeding or affect the quality of mixing. It is also impossible to mix the particles at the bottom of the mixing box, which to a certain extent reduces the mixing effect of the polyvinyl chloride particles. Therefore, we need a mixing equipment for the production of medical polyvinyl chloride particles. Utility Model Content

[0006] The purpose of the utility model is to provide a mixing device for producing medical polyvinyl chloride particles, so as to solve the problem that in the process of mixing polyvinyl chloride raw materials in the mixing device of the patented technology proposed in the above background technology, the raw materials will remain on the inner wall of the mixing box, resulting in insufficient material feeding or affecting the quality of mixing, and the particles at the bottom of the mixing box cannot be mixed, which reduces the mixing effect of the polyvinyl chloride particles to a certain extent.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A mixing device for producing medical polyvinyl chloride particles, comprising a mixing box, the outer surface of which is provided with glass, a mixing assembly provided inside the mixing box, and a purification assembly installed on the top of the mixing box;

[0009] The mixing assembly includes a motor, the output end of the motor is detachably connected to a rotating rod via a coupling, and the outer surface of the rotating rod is fixedly connected to a stirring rod, the inner wall of the stirring rod is installed with a spring, and one end of the spring is fixedly connected to a connecting block, one side of the connecting block is provided with an annular plate, one end of the rotating rod is engaged with a scraper, and the top of the scraper is provided with a fixing bolt;

[0010] The purification component includes a fixed box, a fan is installed on the top of the fixed box, and a mounting plate is fixedly connected to one side of the fan, a mounting groove is provided on the top of the mounting plate, and the inner wall of the mounting groove is threadedly connected to a mounting bolt, a sealing groove is provided on one side of the fixed box, and the inner wall of the sealing groove is snap-connected to the filter box.

[0011] Preferably, a feed port is fixedly connected to the top of the mixing box, a discharge port is installed at the bottom of the mixing box, and a support leg is fixedly connected to the bottom of the mixing box.

[0012] Preferably, the motor forms a rotating structure through a rotating rod and a stirring rod, and the number of the stirring rods is multiple.

[0013] Preferably, the stirring rod forms an elastic structure through a spring and a connecting block, and the connecting block is arranged between the spring and the annular plate, and the shape and size of the outer wall of the annular plate match the shape and size of the inner wall of the mixing box.

[0014] Preferably, the rotating rod forms a fixed structure with the scraper through fixing bolts, and the number of the fixing bolts is two.

[0015] Preferably, the fixing box forms a fixing structure with a mounting plate through mounting bolts, and there are two mounting plates. The shape and size of the mounting bolts match the shape and size of the mounting slots.

[0016] Preferably, the fixing box forms a snap-fit ​​structure with the filter box via a sealing groove, and the shape and size of the sealing groove match those of the filter box.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the mixing equipment for producing medical polyvinyl chloride particles,

[0018] First, the utility model is provided with a motor, a rotating rod, a stirring rod, a spring, a connecting block, an annular plate, a scraper and a fixing bolt. By starting the motor, the multiple stirring rods can be driven to fully stir and mix the polyvinyl chloride particles in the mixing box, and the annular plate at one end of the stirring rod can be close to the inner wall of the mixing box. During the rotation of the stirring rod, the annular plate is driven to rotate synchronously. The annular plate can clean the polyvinyl chloride particles remaining on the inner wall. Moreover, during the rotation of the rotating rod, the scraper is driven to rotate on the inner wall of the mixing box, which can mix and stir the polyvinyl chloride particles at the bottom of the mixing box, thereby greatly improving the efficiency of mixing the polyvinyl chloride particles and improving practicality.

[0019] Second, the utility model is provided with a fixing box, a fan, a mounting plate, a mounting groove, mounting bolts, a sealing groove and a filter box. The fan is mounted on the top of the fixing box with the mounting bolts. In the process of mixing the polyvinyl chloride particles, an odor is generated. The odor is directly discharged during the feeding and affects the health of the staff. The odor is extracted by the fan and the passing air is filtered and purified by the filter box, thereby reducing harmful substances in the gas, reducing pollution to the environment, and ensuring the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the annular plate and scraper of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fan and filter box of the utility model.

[0024] In the figure: 1. Mixing box; 2. Glass; 3. Mixing assembly; 301. Motor; 302. Rotating rod; 303. Stirring rod; 304. Spring; 305. Connecting block; 306. Ring plate; 307. Scraper; 308. Fixing bolt; 4. Feed port; 5. Discharge port; 6. Support leg; 7. Purification assembly; 701. Fixing box; 702. Fan; 703. Mounting plate; 704. Mounting slot; 705. Mounting bolt; 706. Sealing slot; 707. Filter box. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A mixing device for producing medical polyvinyl chloride particles includes a mixing box 1, a glass 2 is installed on the outer surface of the mixing box 1, a mixing component 3 is arranged inside the mixing box 1, and a purification component 7 is installed on the top of the mixing box 1;

[0027] The mixing assembly 3 includes a motor 301. The output end of the motor 301 is detachably connected to a rotating rod 302 via a coupling. The outer surface of the rotating rod 302 is fixedly connected to a stirring rod 303. A spring 304 is installed on the inner wall of the stirring rod 303. One end of the spring 304 is fixedly connected to a connecting block 305. A ring plate 306 is provided on one side of the connecting block 305. One end of the rotating rod 302 is engaged with a scraper 307, and a fixing bolt 308 is provided on the top of the scraper 307.

[0028] The purification component 7 includes a fixed box 701, a fan 702 is installed on the top of the fixed box 701, and a mounting plate 703 is fixedly connected to one side of the fan 702. A mounting groove 704 is provided on the top of the mounting plate 703, and the inner wall of the mounting groove 704 is threadedly connected to a mounting bolt 705. A sealing groove 706 is provided on one side of the fixed box 701, and the inner wall of the sealing groove 706 is snap-connected to a filter box 707.

[0029] Through the above technical solution, by starting the motor 301, multiple stirring rods 303 can be driven to fully stir and mix the polyvinyl chloride particles in the mixing box 1, and the annular plate 306 at one end of the stirring rod 303 can be close to the inner wall of the mixing box 1. During the rotation of the stirring rod 303, the annular plate 306 will be driven to rotate synchronously. The annular plate 306 can clean the polyvinyl chloride particles remaining on the inner wall, and the rotation of the rotating rod 302 will drive the scraper 307 to rotate on the inner wall of the mixing box 1, which can mix and stir the polyvinyl chloride particles at the bottom 1 of the mixing box, thereby greatly improving the efficiency of mixing the polyvinyl chloride particles and improving practicality.

[0030] Specifically, the top of the mixing box 1 is fixedly connected with a feed port 4 , the bottom of the mixing box 1 is provided with a discharge port 5 , and the bottom of the mixing box 1 is fixedly connected with a support leg 6 .

[0031] Through the above technical solution, the polyvinyl chloride particles first enter the mixing box 1 from the feed port 4, and then the additives to be added are added from the feed port 4. The polyvinyl chloride particles are mixed and stirred by the mixing component 3. After the mixing is completed, the solenoid valve on the discharge port 5 is started to discharge the polyvinyl chloride particles from the mixing box 1, thereby completing the mixing of the polyvinyl chloride particles.

[0032] Specifically, the motor 301 forms a rotating structure through the rotating rod 302 and the stirring rod 303, and the number of the stirring rod 303 is multiple.

[0033] The above technical solution facilitates the starting motor 301 to drive the rotating rod 302 to rotate while driving the stirring rod 303 to rotate, so that the multiple stirring rods 303 on the rotating rod 302 rotate to fully mix and stir the polyvinyl chloride particles.

[0034] Specifically, the stirring rod 303 forms an elastic structure through the spring 304 and the connecting block 305, and the connecting block 305 is arranged between the spring 304 and the annular plate 306. The shape and size of the outer wall of the annular plate 306 match the shape and size of the inner wall of the mixing box 1.

[0035] Through the above technical solution, the connecting block 305 is able to perform elastic movement under the action of the spring 304, so that the annular plate 306 on one side of the connecting block 305 will always be against the inner wall of the mixing box 1. During the rotation of the stirring rod 303, the annular plate 306 will be driven to rotate synchronously, so that the annular plate 306 rotates to clean the particles remaining on the inner wall of the mixing box 1.

[0036] Specifically, the rotating rod 302 forms a fixed structure with the scraper 307 through fixing bolts 308, and the number of the fixing bolts 308 is two.

[0037] Through the above technical solution, it is convenient to use the fixing bolt 308 to penetrate the top of the scraper 307 until it extends into the rotating rod 302, so that the scraper 307 and the rotating rod 302 are fixedly installed. During the rotation of the rotating rod 302, the scraper 307 will be driven to rotate synchronously, and then the scraper 307 can rotate and mix the particles at the bottom of the mixing box 1.

[0038] Specifically, the fixing box 701 forms a fixing structure with the mounting plate 703 through the mounting bolts 705 , and there are two mounting plates 703 . The shape and size of the mounting bolts 705 match the shape and size of the mounting slots 704 .

[0039] Through the above technical solution, it is convenient to install the mounting plate 703 and the fixed box 701 by extending the mounting bolts 705 into the mounting groove 704, and then the fan 702 can be installed with the fixed box 701. Starting the fan 702 can extract the gas in the mixing box 1 outward, and a solenoid valve is provided in the feed port 4. During the mixing process, the solenoid valve is in a closed state, so that the gas in the mixing box 1 can only be discharged through the fan 702.

[0040] Specifically, the fixing box 701 forms a snap-fit ​​structure with the filter box 707 via the sealing groove 706 , and the shape and size of the sealing groove 706 match those of the filter box 707 .

[0041] Through the above technical solution, it is convenient for the filter box 707 to be extended into the sealing groove 706 and installed with the fixed box 701. The filter box 707 is equipped with a filter screen and an activated carbon plate to filter and purify harmful substances in the passing gas, so that the discharged gas reduces the harm to the environment and human body.

[0042] Working principle: When using the mixing equipment for producing medical polyvinyl chloride particles, first, add polyvinyl chloride particles and additives into the mixing box 1 from the feed port 4, then start the motor 301, the motor 301 drives the rotating rod 302 to rotate, the rotating rod 302 drives the stirring rod 303 to mix and stir the particles, and the rotating rod 302 drives the scraper 307 to rotate to mix the polyvinyl chloride particles at the bottom. At the same time, under the action of the spring 304, the annular plate 306 on one side of the connecting block 305 will be against the inner wall of the mixing box 1, and the stirring rod 303 rotates to mix the particles. The movable annular plate 306 rotates, and the annular plate 306 cleans the particles remaining on the inner wall of the mixing box 1, and the fan 702 is started. The fan 702 can discharge the gas in the mixing box 1 to the outside, and the gas will pass through the filter box 707 for filtration and purification. The filter box 707 is equipped with a filter screen and an activated carbon plate to filter and purify harmful substances in the passing gas, so that the discharged gas reduces the harm to the environment and human body. This completes all the work. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the appended claims and their equivalents.

Claims

1. A mixing device for producing medical polyvinyl chloride granules, comprising a mixing box (1), characterized in that: The outer surface of the mixing box (1) is installed with glass (2), the interior of the mixing box (1) is provided with a mixing component (3), and the top of the mixing box (1) is installed with a purification component (7); The mixing assembly (3) comprises a motor (301), the output end of the motor (301) is detachably connected to a rotating rod (302) via a coupling, and the outer surface of the rotating rod (302) is fixedly connected to a stirring rod (303), a spring (304) is installed on the inner wall of the stirring rod (303), and one end of the spring (304) is fixedly connected to a connecting block (305), a ring plate (306) is provided on one side of the connecting block (305), and one end of the rotating rod (302) is engaged with a scraper (307), and a fixing bolt (308) is provided on the top of the scraper (307); The purification assembly (7) comprises a fixed box (701), a fan (702) is mounted on the top of the fixed box (701), and a mounting plate (703) is fixedly connected to one side of the fan (702), a mounting groove (704) is provided on the top of the mounting plate (703), and a mounting bolt (705) is threadedly connected to the inner wall of the mounting groove (704), a sealing groove (706) is provided on one side of the fixed box (701), and a filter box (707) is snap-connected to the inner wall of the sealing groove (706).

2. The mixing device for producing medical polyvinyl chloride particles according to claim 1, characterized in that: The top of the mixing box (1) is fixedly connected to a feed port (4), the bottom of the mixing box (1) is provided with a discharge port (5), and the bottom of the mixing box (1) is fixedly connected to support legs (6).

3. The mixing equipment for producing medical polyvinyl chloride particles according to claim 1, characterized in that: The motor (301) forms a rotating structure through a rotating rod (302) and a stirring rod (303), and the number of the stirring rods (303) is multiple.

4. The mixing equipment for producing medical polyvinyl chloride particles according to claim 1, characterized in that: The stirring rod (303) forms an elastic structure through a spring (304) and a connecting block (305), and the connecting block (305) is arranged between the spring (304) and the annular plate (306), and the shape and size of the outer wall of the annular plate (306) match the shape and size of the inner wall of the mixing box (1).

5. The mixing equipment for producing medical polyvinyl chloride particles according to claim 1, characterized in that: The rotating rod (302) and the scraper (307) form a fixed structure through fixing bolts (308), and the number of the fixing bolts (308) is two.

6. The mixing equipment for producing medical polyvinyl chloride particles according to claim 1, characterized in that: The fixing box (701) forms a fixing structure with the mounting plate (703) through the mounting bolts (705), and the number of the mounting plates (703) is two. The shape and size of the mounting bolts (705) match the shape and size of the mounting slot (704).

7. The mixing equipment for producing medical polyvinyl chloride particles according to claim 1, characterized in that: The fixing box (701) forms a snap-fit ​​structure with the filter box (707) via the sealing groove (706), and the shape and size of the sealing groove (706) match those of the filter box (707).

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