Static mixer suitable for mixing resin materials

Abstract

The invention belongs to the technical field of mixers, and discloses a static mixer suitable for mixing resin materials, which comprises a hollow cylinder, the two ends of the barrel are open, a mandrel which is coaxially placed is arranged in the barrel, connecting pieces are fixed to the two ends of the mandrel and detachably connected with the peripheral wall of the inner side of the barrel, and a plurality of mixing assemblies which are evenly distributed are arranged on the mandrel in the axis direction; each mixing assembly comprises a fixing ball fixedly arranged on the core shaft in a sleeving mode, each fixing ball is connected with a pair of semicircular mixing plates, the inner side peripheral walls of the mixing plates are attached to the spherical surface of the fixing ball, the mixing plates are slidably connected with the spherical surface of the fixing ball, and the two mixing plates are located at the two ends, away from each other, of the fixing ball correspondingly; after mixing is finished, the connecting piece and the cylinder body are detached and separated, the mandrel and the mixing plate can be pulled out of the cylinder body, and the semi-circular mixing plate is flat in plate surface, so that subsequent cleaning work on the static mixer is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of mixers, and in particular relates to a static mixer suitable for mixing resin materials. Background Art

[0002] Polyimide is a special type of resin that exhibits excellent thermal stability, mechanical strength and chemical stability under high temperature and high pressure. As a special engineering material, polyimide has been widely used in aviation, aerospace, microelectronics, nano, liquid crystal, separation membrane, laser and other fields. Due to its outstanding characteristics in performance and synthesis, its huge application prospects have been fully recognized whether as a structural material or as a functional material; since polyimide is easily damaged due to its polymer chain structure, it is not suitable for mixing by rapid stirring and the like. In the prior art, static mixing is usually used to achieve mixing more gently and evenly;

[0003] For example, the Chinese patent with application number CN202021869215.4 relates to a static mixer for improving mixing uniformity, including a tube body, a columnar structure with an opening at one end of the tube body, a sealing cover at the open end of the tube body, a stirring shaft passing through the sealing cover is arranged in the tube body, and one end of the stirring shaft located outside the tube body is connected to a variable frequency motor; a plurality of stirring rods are arranged circumferentially and staggered on the stirring shaft, and the stirring rods are arranged in a prism shape; a plurality of feed ports are arranged on the tube body and along its length direction, and a diffusion nozzle extending into the tube body is arranged in the feed port; a discharge port with a flow control switch is also arranged on the tube body; the tube body is arranged in a horizontal manner, and a bracket is arranged at the lower part of the tube body, and a motor seat for supporting the variable frequency motor is arranged on the bracket. The utility model has strong functionality and good mixing effect, and can be widely used in the field of mixer technology.

[0004] However, after the resin materials are mixed in the static mixer of the above patent, some of the resin materials will remain on the stirring rods, and there are a large number of stirring rods with uneven surfaces, making it difficult to subsequently clean the mixer. Therefore, the prior art has the problem of being inconvenient to clean the static mixer after use. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a static mixer suitable for mixing resin materials, which solves the problem in the prior art that it is inconvenient to clean the static mixer after use.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A static mixer suitable for mixing resin materials, comprising a hollow cylinder;

[0008] Both ends of the cylinder are open, a coaxially placed core shaft is arranged inside the cylinder, connecting pieces are fixed at both ends of the core shaft, and the connecting pieces are detachably connected to the inner peripheral wall of the cylinder, and a plurality of mixing components are evenly distributed along the axial direction on the core shaft;

[0009] The mixing components all include a fixed ball fixedly sleeved on the core shaft, a pair of semicircular mixing plates are connected to the fixed ball, the inner peripheral wall of the mixing plate is fitted with the spherical surface of the fixed ball, the mixing plates are slidably connected with the spherical surface of the fixed ball, the two mixing plates are respectively located at two ends of the fixed ball away from each other, the two planes where the two mixing plates are located are in a staggered state, the fixed ball is provided with an adjustment unit connecting the two mixing plates, the adjustment unit is used to adjust the angle between the mixing plates, and the distance between the two planes of the two mixing plates close to the core shaft end is greater than or equal to the core shaft diameter;

[0010] The arrangement direction of the two mixing plates in any mixing assembly is perpendicular to the central axis of the mandrel;

[0011] The arrangement direction of the two mixing plates in any mixing assembly is perpendicular to the arrangement direction of the two mixing plates in the adjacent mixing assembly;

[0012] The adjusting units all include a pair of coaxially placed rotating shafts, the central axes of the rotating shafts all pass through the centers of the corresponding fixed balls, the rotating shafts correspond to the mixing plates one by one, and the central axes of the rotating shafts are all placed in parallel with the corresponding mixing plates, the mixing plates are all rotatably sleeved on the corresponding rotating shafts, one end of the rotating shafts is fixed to the fixed balls, the other end of the rotating shafts passes through the end of the corresponding mixing plate away from the core shaft, and the peripheral wall of the rotating shaft extending out of the mixing plate end is provided with spirally distributed thread teeth, the thread teeth are sleeved with threaded nuts, and the mixing plates are all located between the nuts and the fixed balls;.

[0013] The connecting parts include a fixing ring and a connecting rod, the connecting rod is fixed inside the fixing ring, the ends of the mandrel are fixed to the connecting rods at the corresponding ends, the fixing ring is placed coaxially with the cylinder, the outer peripheral wall of the fixing ring is fitted with the inner peripheral wall of the cylinder, and the fixing ring and the cylinder are detachably connected by bolts;

[0014] A sealed chamber is provided on the inner side of the peripheral wall of the cylinder;

[0015] An inlet pipe connected to the chamber is fixed to the outer wall at one end of the cylinder, and an outlet pipe connected to the chamber is fixed to the outer wall at the other end of the cylinder;

[0016] The water inlet pipe and the water outlet pipe are both arranged symmetrically about the central axis of the core shaft.

[0017] Beneficial effects of the present invention:

[0018] 1. The resin material is input into the cylinder from the upper end of the cylinder, and the resin material passes through the mixing components in sequence. When passing through any mixing component, the two semicircular plates in the mixing component can divert the resin material, so that the resin material is continuously diverted and mixed in the cylinder, effectively realizing static mixing of the resin material entering the cylinder;

[0019] Compared with the corresponding technology, the method of fixing the stirring rod on the core shaft, the matching method of the fixed ball and the mixing plate can better divide and mix the resin material, and after the mixing is completed, the connecting piece is disassembled and separated from the cylinder, and the core shaft and the mixing plate can be pulled out of the cylinder, and the semicircular mixing plate surface is relatively flat, which is convenient for subsequent cleaning;

[0020] 2. Through the matching setting of the rotating shaft, thread teeth and nut, after loosening the nut, the angle between the two mixing plates or the angle between the mixing plate and the core shaft can be adjusted. After the adjustment is completed, the position of the mixing plate can be fixed by tightening the nut, so that the inclination angle of the mixing plate can be adjusted accordingly according to the viscosity of the resin, thereby controlling the flow rate of the resin passing through the mixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0024] Figure 3 It is a partial structural schematic diagram of the mixing plate of the present invention;

[0025] Figure 4 It is a partial structural schematic diagram of the fixed ball of the present invention;

[0026] Figure 5 It is a partial structural schematic diagram of the rotating shaft of the present invention. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] like Figure 1 5, a static mixer suitable for mixing resin materials, comprising a hollow cylinder 100;

[0029] Both ends of the cylinder 100 are open, a coaxially placed core shaft 200 is provided inside the cylinder 100, connecting pieces 300 are fixed at both ends of the core shaft 200, and the connecting pieces 300 are detachably connected to the inner peripheral wall of the cylinder 100, and a plurality of mixing components are evenly distributed along the axial direction on the core shaft 200;

[0030] The mixing components all include a fixed ball 401 fixedly sleeved on the core shaft 200, a pair of semicircular mixing plates 402 are connected to the fixed ball 401, the inner peripheral wall of the mixing plate 402 is fitted with the spherical surface of the fixed ball 401, and the mixing plates 402 are slidably connected to the spherical surface of the fixed ball 401, the two mixing plates 402 are respectively located at two ends of the fixed ball 401 away from each other, and the two planes where the two mixing plates 402 are located are in a staggered state, and the fixed ball 401 is provided with an adjustment unit connecting the two mixing plates 402, the adjustment unit is used to adjust the angle between the mixing plates 402, and the distance between the two planes of the two mixing plates 402 close to the end of the core shaft 200 is greater than or equal to the diameter of the core shaft 200;

[0031] The static mixer of the present application is used in conjunction with the existing equipment. When in use, the barrel 100 is placed vertically, the upper end of the barrel 100 is the feed port of the resin material, and the lower end of the barrel 100 is the discharge port of the resin material; the resin material is input into the barrel 100 from the upper end of the barrel 100, and the resin material passes through the mixing components in sequence. When passing through any mixing component, the two semicircular plates in the mixing component can divert the resin material, so that the resin material is continuously diverted and mixed in the barrel 100, and the resin material entering the barrel 100 is effectively statically mixed;

[0032] Compared with the corresponding technology, the method of fixing the stirring rod on the core shaft 200, the matching method of the fixed ball 401 and the mixing plate 402 can better divert and mix the resin material, and after the mixing is completed, the connecting piece 300 is disassembled and separated from the cylinder 100, and the core shaft 200 and the mixing plate 402 can be pulled out from the cylinder 100, and the surface of the semicircular mixing plate 402 is relatively flat, which is convenient for subsequent cleaning work.

[0033] Preferably, the surface of the mixing plate 402 may be chrome-plated.

[0034] The arrangement direction of the two mixing plates 402 in any mixing assembly is perpendicular to the central axis of the core shaft 200;

[0035] The arrangement direction of the two mixing plates 402 in any mixing assembly is perpendicular to the arrangement direction of the two mixing plates 402 in the adjacent mixing assembly; the effect of diverting and mixing the resin material is further improved by the different arrangement directions of the mixing plates 402 in the two adjacent mixing assemblies.

[0036] Since factors such as concentration and stability can affect the viscosity of the resin, it is usually necessary to adjust the inclination angle of the mixing plate 402 accordingly according to the viscosity of the resin, so as to control the flow rate of the resin passing through the mixing plate 402. The adjustment unit includes a pair of coaxially placed shafts 403, the central axes of the shafts 403 pass through the centers of the corresponding fixed balls 401, the shafts 403 correspond to the mixing plates 402 one by one, and the central axes of the shafts 403 are placed parallel to the corresponding mixing plates 402, the mixing plates 402 are rotatably sleeved on the corresponding shafts 403, and one end of the shafts 403 is connected to the fixed balls 401. 401 is fixed, and the other end of the rotating shaft 403 passes through the end of the corresponding mixing plate 402 away from the core shaft 200, and the peripheral wall of the rotating shaft 403 extending out of the mixing plate 402 is provided with spirally distributed thread teeth 4031, and the thread teeth 4031 are sleeved with threaded nuts 404, and the mixing plates 402 are located between the nuts 404 and the fixed balls 401; after loosening the nuts 404, the mixing plates 402 can be pushed to rotate around the central axis of the rotating shaft 403, so as to adjust the angle between the two mixing plates 402 or the angle between the mixing plates 402 and the central axis of the core shaft 200.

[0037] Preferably, after the nut 404 is tightened, the end of the nut 404 away from the core shaft 200 is flush with the end of the rotating shaft 403 away from the core shaft 200;

[0038] Preferably, the nut 404 is provided with a first high-temperature resistant elastic gasket near the end of the mixing plate 402, and the side of the mixing plate 402 that fits the spherical surface of the fixing ball 401 is fixed with a second high-temperature resistant elastic gasket, which can improve the stability of the nut 404 after tightening, and at the same time avoid relative sliding between the mixing plate 402 and the fixing ball 401 after the nut 404 is tightened.

[0039] The connecting pieces 300 include a fixing ring 301 and a connecting rod 302. The connecting rod 302 is fixed on the inner side of the fixing ring 301. The ends of the core shaft 200 are fixed to the connecting rod 302 at the corresponding ends. The fixing ring 301 is placed coaxially with the cylinder 100. The outer peripheral wall of the fixing ring 301 fits with the inner peripheral wall of the cylinder 100. The fixing ring 301 and the cylinder 100 are detachably connected by bolts, thereby achieving a stable connection to the core shaft 200. At the same time, after the mixing is completed, it is convenient to disassemble and separate the connecting piece 300, the core shaft 200 and the cylinder 100.

[0040] A sealed chamber 101 is provided on the inner side of the peripheral wall of the cylinder 100 ; water or other liquids at a desired temperature can be injected into the chamber 101 to keep the resin in the cylinder 100 relatively stable.

[0041] A water inlet pipe 102 connected to the chamber 101 is fixed to the outer wall at one end of the cylinder 100, and a water outlet pipe 103 connected to the chamber 101 is fixed to the outer wall at the other end of the cylinder 100; preferably, when in use, the cylinder 100 is placed vertically downward, and the water inlet pipe 102 is located at the lower end of the cylinder 100, and water of different required temperatures is injected into the chamber 101 through the water inlet pipe 102, and excess water is discharged through the water outlet pipe 103, so as to realize the circulation of water in the chamber 101 and keep the water in the chamber 101 at the required temperature.

[0042] The water inlet pipe 102 and the water outlet pipe 103 are both arranged symmetrically about the central axis of the core shaft 200 , so as to reduce the possibility of temperature difference on both sides of the central axis of the core shaft 200 in the chamber 101 .

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A static mixer suitable for mixing resin materials, comprising a hollow cylinder (100), characterized in that: Both ends of the cylinder (100) are open, a coaxially arranged core shaft (200) is provided inside the cylinder (100), connecting pieces (300) are fixed at both ends of the core shaft (200), the connecting pieces (300) are detachably connected to the inner peripheral wall of the cylinder (100), and a plurality of mixing components are evenly distributed along the axial direction on the core shaft (200); The mixing components each comprise a fixed ball (401) fixedly sleeved on a core shaft (200), a pair of semicircular mixing plates (402) being connected to the fixed ball (401), the inner peripheral wall of the mixing plate (402) being in contact with the spherical surface of the fixed ball (401), the mixing plates (402) being slidably connected to the spherical surface of the fixed ball (401), the two mixing plates (402) being respectively located at two ends of the fixed ball (401) that are away from each other, the two planes where the two mixing plates (402) are located being in a staggered arrangement, the fixed ball (401) being provided with an adjustment unit connecting the two mixing plates (402), the adjustment unit being used to adjust the angle between the mixing plates (402), and the distance between the two planes of the two mixing plates (402) close to the end of the core shaft (200) being greater than or equal to the diameter of the core shaft (200).

2. The static mixer suitable for mixing resin materials according to claim 1, characterized in that: The arrangement direction of the two mixing plates (402) in any mixing assembly is perpendicular to the central axis of the core shaft (200); The arrangement direction of the two mixing plates (402) in any mixing assembly is perpendicular to the arrangement direction of the two mixing plates (402) in the adjacent mixing assembly.

3. The static mixer suitable for mixing resin materials according to claim 2, characterized in that: The adjusting units each include a pair of coaxially arranged rotating shafts (403), the central axes of the rotating shafts (403) each pass through the centers of the corresponding fixed balls (401), the rotating shafts (403) correspond to the mixing plates (402) one by one, and the central axes of the rotating shafts (403) are placed in parallel with the corresponding mixing plates (402), the mixing plates (402) are rotatably sleeved on the corresponding rotating shafts (403), one end of the rotating shafts (403) is fixed to the fixed balls (401), the other end of the rotating shafts (403) passes through one end of the corresponding mixing plates (402) away from the core shaft (200), and the peripheral wall of the rotating shafts (403) extending out of the mixing plates (402) is provided with spirally distributed thread teeth (4031), the thread teeth (4031) are sleeved with threaded nuts (404), and the mixing plates (402) are located between the nuts (404) and the fixed balls (401).

4. The static mixer suitable for mixing resin materials according to claim 3, characterized in that: The connecting parts (300) include a fixing ring (301) and a connecting rod (302), the connecting rod (302) is fixed to the inner side of the fixing ring (301), the ends of the core shaft (200) are fixed to the connecting rod (302) at the corresponding ends, the fixing ring (301) is placed coaxially with the cylinder (100), the outer peripheral wall of the fixing ring (301) is in contact with the inner peripheral wall of the cylinder (100), and the fixing ring (301) and the cylinder (100) are detachably connected by bolts.

5. The static mixer suitable for mixing resin materials according to claim 4, characterized in that: A sealed chamber (101) is provided on the inner side of the peripheral wall of the cylinder (100).

6. The static mixer suitable for mixing resin materials according to claim 5, characterized in that: A water inlet pipe (102) connected to the chamber (101) is fixed to the outer wall at one end of the cylinder (100), and a water outlet pipe (103) connected to the chamber (101) is fixed to the outer wall at the other end of the cylinder (100).

7. The static mixer suitable for mixing resin materials according to claim 6, characterized in that: The water inlet pipe (102) and the water outlet pipe (103) are both arranged to be symmetrical about the central axis of the core shaft (200).

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