Unsaturated polyester resin mixing device for pouring low-voltage mutual inductor

Abstract

The unsaturated polyester resin mixing device is characterized in that an electronic scale is arranged above the bottom of a rack, a final mixing box is arranged above the electronic scale, the upper portion of the final mixing box is communicated with a premixing box fixed to the rack through a discharging opening, a first feeding opening is formed in the upper end of the premixing box, and a second feeding opening is formed in the lower end of the premixing box; a first stirring fan blade and a first stirring rod are arranged in the premixing box, the first stirring rod is connected with one end of a linkage rod of the motor, the other end of the linkage rod is connected with a second stirring rod, a second stirring fan blade is arranged on the second stirring rod, and the second stirring fan blade is arranged in the final mixing box; a second feeding hole is formed in the upper end of the final mixing box, and a filtering plate is arranged below the second feeding hole. The material mixing device is low in cost, uniform in mixing, high in stirring efficiency and few in impurities, reduces labor input, and improves the product percent of pass.

Description

Technical Field

[0001] The present invention relates to a low voltage transformer casting material mixing device, in particular to an unsaturated polyester resin mixing device used for low voltage transformer casting. The mixing device can mix materials evenly, filter excess impurities, and has high stirring efficiency. Background Art

[0002] Unsaturated polyester resin is the most commonly used type of thermosetting resin. It is generally a linear polymer compound with ester bonds and unsaturated double bonds formed by the polycondensation of unsaturated dibasic acid and diol or saturated dibasic acid and unsaturated diol. It can be cured at room temperature and formed under normal pressure. After curing, the resin has good comprehensive properties and flexible process performance. Unsaturated polyester resin has good mechanical properties, heat resistance, chemical resistance and corrosion resistance, so it is also valued in industries such as construction, ships, furniture, electronic components and outdoor equipment. In the production and use process, stirring and mixing of unsaturated polyester resin is extremely important.

[0003] Since unsaturated polyester resin cures quickly at room temperature, the storage time of the mixture is short. Each time it is used, the mixture needs to be manually prepared in small quantities many times. The material area is far from the operation area, which is laborious and time-consuming to transport. There are many impurities (silicon dioxide) in the mixture, which will affect the electrical and mechanical properties of the product. The existing stirring blades are of a single shape, small in number, and large in area. Unsaturated polyester resin has strong adhesion, so it is easy to adhere to the stirring blades during the stirring process, resulting in low stirring efficiency and uneven mixing. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the mixing blades of the mixing device in the above-mentioned prior art, such as single shape, small number and large area, and the unsaturated polyester resin has strong adhesion, so it is easy to adhere to the mixing blades during the mixing process, resulting in low mixing efficiency and uneven mixing, and to provide an unsaturated polyester resin mixing device for casting a low-voltage mutual inductor. The mixing device has low cost, uniform mixing, high mixing efficiency, less impurities, reduced labor input, and improved product qualification rate.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an unsaturated polyester resin mixing device used for casting a low-voltage mutual inductor, an electronic scale is provided above the bottom of a frame, a final mixing box is provided above the electronic scale, the final mixing box is connected to a premixing box fixed on the frame through a drop port, a first feed port is provided at the upper end of the premixing box, a first stirring blade and a first stirring rod are provided in the premixing box, the first stirring rod is connected to one end of a connecting rod of a motor, the other end of the connecting rod is connected to a second stirring rod, a second stirring blade is provided on the second stirring rod, the second stirring blade is placed in the final mixing box, a second feed port is provided at the upper end of the final mixing box, and a filter plate is provided below the second feed port.

[0006] Preferably, the filter plate is obliquely arranged between the top wall and the side wall of the final mixing box, and the upper surface of the filter plate corresponds to the drop opening and the second feed opening.

[0007] Preferably, a discharge pipe is provided on the bottom side wall of the final mixing box.

[0008] Preferably, a door panel is provided at the upper end of the side wall of the final mixing box, and the lowest point of the door panel coincides with the lowest point of the filter plate.

[0009] Preferably, an observation window is provided in the middle of the side wall of the premixing box.

[0010] Preferably, the bottom of the motor is fixed on a support plate connected to the frame.

[0011] Preferably, universal wheels are provided at the bottom of the frame.

[0012] Preferably, the premixing box and the final mixing box are made of molybdenum-containing stainless steel.

[0013] Preferably, a material pouring slope is provided at the bottom of the premixing box.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The present invention provides an unsaturated polyester resin mixing device for casting a low-voltage mutual inductor. By setting a filter plate, solid impurities are centrally processed, which greatly improves the cleanliness of the mixture and stabilizes the electrical and mechanical properties of the product. By setting a stirring mechanism, the circular ring-shaped fan blade design makes the contact area smaller and is not easy to adhere to the stirring fan blade. Multiple fan blades stir, with higher stirring efficiency, more uniform mixing and low cost. By setting a universal wheel, it is easy to move and use, saves repeated mixing time, improves the use efficiency of unsaturated polyester resin, reduces labor input, and has high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The present invention discloses a structural schematic diagram of an unsaturated polyester resin mixing device used for casting a low-voltage mutual inductor.

[0017] Figure 2 It is a front view of the stirring fan blade in the present invention.

[0018] Figure 3 It is a top view of the stirring fan blade in the present invention.

[0019] Figure 4 is a top view of a filter plate in the present disclosure.

[0020] Figure 5 is a top view of a premixing box in the present disclosure.

[0021] Figure 6 is a top view of the final mixing box in the present disclosure.

[0022] Markings in the figure: 1. Frame; 2. First feed inlet; 3. Premixing box; 4. First stirring blade; 5. First stirring rod; 6. Dropping port; 7. Support plate; 8. Motor; 9. Linking rod; 10. Second stirring rod; 11. Second stirring blade; 12. Second feed inlet; 13. Door panel; 14. Filter plate; 15. Electronic scale; 16. Final mixing box; 17. Discharge pipe; 18. Universal wheel; 19. Observation window. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. The components of the embodiments of the present disclosure described and shown in the drawings here can be arranged and designed in various different ways.

[0024] In order to solve the technical problems that the stirring blades of the mixing device in the prior art are single in shape, small in number and large in area, and the unsaturated polyester resin has strong adhesion, so it is easy to adhere to the stirring blades during the stirring process, the stirring efficiency is low, and the mixing is uneven, the present invention provides an unsaturated polyester resin mixing device for low-voltage transformer casting, including a frame 1, a plurality of universal wheels 18 are provided at the bottom of the frame 1 for easy movement, an electronic scale 15 is provided above the bottom of the frame 1, a final mixing box 16 is provided above the electronic scale 15 for storing the stirred unsaturated polyester resin mixture, the final mixing box 16 is connected to a premixing box 3 fixed on the frame 1 through a drop opening 6, and the The upper end of the premixing box 3 is provided with a first feed port 2, which is used for the large-scale delivery of materials such as unsaturated polyester resin and silicon powder to reduce the number of mixing times. The premixing box 3 is provided with a first stirring blade 4 and a first stirring rod 5. The first stirring rod 5 is connected to one end of the linkage rod 9 of the motor 8, and the other end of the linkage rod 9 is connected to the second stirring rod 10. The second stirring blade 11 is provided on the second stirring rod 10, and the second stirring blade 11 is placed in the final mixing box 16. The upper end of the final mixing box 16 is provided with a second feed port 12, which is convenient for the addition of additives such as curing agent. A filter plate 14 is provided below the second feed port 12 to facilitate the temporary storage and cleaning of solid impurities. The filter plate 14 is tilted between the top wall and the side wall of the final mixing box 16, and the filter plate 14 corresponds to the drop port 6 and the second feed port 12. The filter plate 14 is a filter screen with a large area, and only at the lowest point is it set as a baffle without a filter screen to prevent the slag rolling down the filter plate after filtering from falling down. The bottom side wall of the final mixing box 16 is provided with a discharge pipe 17 for easy access to the mixed material. The upper end of the side wall of the final mixing box 16 is provided with a door panel 13, the lowest point of which coincides with the lowest point of the filter plate 14, for cleaning the filtered solid impurities. The middle position of the side wall of the premixing box 3 is provided with an observation window 19 for observing the storage material and for maintenance when necessary. The bottom of the motor 8 is fixed on the support plate 7 connected to the frame 1. The material of the premixing box 3 and the final mixing box 16 is molybdenum-containing stainless steel, which is resistant to high temperature and corrosion, and increases the service life.

[0025] During actual use of the device, the material discharge port 6 is closed, and the unsaturated polyester resin, silicon powder and other materials are poured into the premixing box 3 through the first material feed port 2, and the motor 8 is turned on to drive the first stirring rod 5 to rotate and stir the unsaturated polyester resin mixture. The annular fan blade design makes the contact area smaller and is not easy to adhere to the first stirring fan blade 4. Multiple fan blades stir, the stirring efficiency is higher, and the mixing is more uniform. After the stirring is completed, the material discharge port 6 is opened, and the stirred unsaturated polyester resin flows into the final mixing box 16. The filter plate 14 filters the solid impurities, and the solid impurities fall to the lower right of the filter plate 14. The solid impurities can be cleaned regularly through the openable door panel 13. According to the material demand, the weight of the mixture placed in the final mixing box 16 is controlled by the electronic scale 15. The curing agent and other additives required are added from the second feed port 12 and stirred by the second stirring blades 11. The annular blade design makes the contact area smaller and is not easy to adhere to the stirring blades. Multiple blades stir, the stirring efficiency is higher, and the mixing is more uniform, so that the unsaturated polyester resin mixture and the curing agent are fully mixed and taken out through the discharge pipe 17.

[0026] The above shows and describes the basic principles and main features of the present disclosure and the advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure may have various changes and improvements, which fall within the scope of the present disclosure to be protected. The scope of protection claimed by the present disclosure is defined by the attached claims and their equivalents.

Claims

1. An unsaturated polyester resin mixing device for casting a low voltage mutual inductor, characterized in that: An electronic scale (15) is arranged above the bottom of the frame (1), and a final mixing box (16) is arranged above the electronic scale (15). The final mixing box (16) is connected to a premixing box (3) fixed on the frame (1) through a drop opening (6). A first feed opening (2) is arranged at the upper end of the premixing box (3). A first stirring blade (4) and a first stirring rod (5) are arranged in the premixing box (3). The first stirring rod (5) is connected to one end of a linkage rod (9) of a motor (8), and the other end of the linkage rod (9) is connected to a second stirring rod (10). A second stirring blade (11) is arranged on the second stirring rod (10), and the second stirring blade (11) is placed in the final mixing box (16). A second feed opening (12) is arranged at the upper end of the final mixing box (16), and a filter plate (14) is arranged below the second feed opening (12).

2. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: The filter plate (14) is arranged obliquely between the top wall and the side wall of the final mixing box (16), and the upper surface of the filter plate (14) corresponds to the drop opening (6) and the second feed opening (12).

3. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: A discharge pipe (17) is provided on the bottom side wall of the final mixing box (16).

4. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: A door panel (13) is provided at the upper end of the side wall of the final mixing box (16), and the lowest point of the door panel (13) coincides with the lowest point of the filter plate (14).

5. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: An observation window (19) is provided in the middle of the side wall of the premixing box (3).

6. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: The bottom of the motor (8) is fixed on a support plate (7) connected to the frame (1).

7. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: The bottom of the frame (1) is provided with a universal wheel (18).

8. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: The material of the premixing box (3) and the final mixing box (16) is molybdenum-containing stainless steel.

9. The unsaturated polyester resin mixing device for casting a low voltage mutual inductor according to claim 1, characterized in that: The bottom of the premixing box (3) is provided with a material pouring slope.

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