Ultrasonic field coil cooling discharging device for grinding machine

Abstract

The present invention discloses a grinding machine ultrasonic field coil cooling discharging device, including an ultrasonic device, an ultrasonic support end cover, a discharging cylinder, a discharging end cover ring, a discharging screen, a screen pressure cover assembly and a cooling coil, wherein the upper end of the discharging cylinder is fixedly connected to the ultrasonic support end cover, the lower end of the discharging cylinder is fixedly connected to the discharging end cover ring, a discharging port connected to the inside of the discharging cylinder is fixedly connected to the outer wall of the discharging cylinder, a screen support frame is fixedly connected to the lower end face of the discharging end cover ring, the upper end side edge of the discharging screen is fixedly connected to the screen support frame, and the lower end side edge of the discharging screen is embedded and fixed to the screen pressure cover assembly; an ultrasonic device is inserted and fixed on the ultrasonic support end cover. The present invention has a reasonable structural design, better processing effect on grinding materials, and has a material cooling function; the discharging screen is easy to disassemble and assemble, and is convenient for subsequent cleaning and replacement.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to an ultrasonic field coil-type cooling and discharging device for a grinding machine. Background Art

[0002] The discharge of a conventional sand mill is a single discharge structure without a cooling function. In addition, as the demand for productivity increases and the solid content of the sand mill grinding slurry increases, the screen gap is too small, which often causes the sand mill screen to become more easily blocked. Running the sand mill for a long time makes the pressure in the sand mill cavity too high, and the discharge screen of the grinder must be frequently disassembled and cleaned to ensure the normal operation of the machine. The existing sand mill discharge screen assembly still has some structural defects, and the screen is not convenient to disassemble and clean. How to design a cooling discharge device for a grinder that has a cooling function and is easy to disassemble and clean has become a technical problem that needs to be solved in this application. Summary of the invention

[0003] The object of the present invention is to provide a grinding machine ultrasonic field coil cooling discharging device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A grinding machine ultrasonic field coil cooling discharging device, comprising an ultrasonic device, an ultrasonic support end cover, a discharging cylinder, a discharging end cover ring, a discharging screen, a screen pressure cover assembly and a cooling coil, wherein the upper end of the discharging cylinder is fixedly connected to the ultrasonic support end cover, the lower end of the discharging cylinder is fixedly connected to the discharging end cover ring, a discharging port connected to the inside of the discharging cylinder is fixedly connected to the outer wall of the discharging cylinder, a screen support frame is fixedly connected to the lower end surface of the discharging end cover ring, the upper end side edge of the discharging screen is fixedly connected to the screen support frame, and the lower end side edge of the discharging screen is embedded and fixed to the screen pressure cover assembly;

[0006] An ultrasonic device is inserted and fixed on the ultrasonic supporting end cover;

[0007] A cooling water inlet and a cooling water outlet are also fixedly mounted on the ultrasonic support end cover. A cooling coil is arranged inside the screen support frame. One end of the cooling coil is connected to the cooling water inlet and the other end of the cooling coil is connected to the cooling water outlet.

[0008] As a further solution of the present invention, the ultrasonic device includes an ultrasonic transducer located below the ultrasonic support end cap and an ultrasonic generator located above the ultrasonic support end cap. The ultrasonic field generated by the ultrasonic transducer will have a crushing effect on the particles of the ground material, breaking up the agglomeration of the particles, and the ultrasonic field will also have a shaping effect on irregularly shaped materials, so that the ground particles have better roundness.

[0009] As a further solution of the present invention, the upper end surface of the discharge cylinder is fixedly connected with an upper cylinder flange, which is fixedly connected to the ultrasonic support end cover by bolts, and the lower end surface of the discharge cylinder is fixedly connected with a lower cylinder flange, which is fixedly connected to the discharge end cover ring by bolts. The structural design of the discharge cylinder is reasonable and convenient for assembly with other components.

[0010] As a further solution of the present invention, the screen support frame includes an upper ring body, a middle cylinder body and a lower end cover, the upper end of the middle cylinder body is fixedly connected to the upper ring body, the upper ring body is welded and fixed to the lower end face of the discharge end cover ring, the lower end of the middle cylinder body is fixedly connected to the lower end cover, and rectangular strip holes or waist-shaped holes are distributed on the middle cylinder body. The screen support frame has a high support strength for the discharge screen, which can effectively protect the discharge screen from deformation.

[0011] As a further solution of the present invention, an upper annular step groove is provided on the outer wall of the lower end of the upper ring body, and an upper pressure ring is fitted on the circumferential outer wall of the upper ring body through threaded matching, and the upper pressure ring presses the upper edge of the discharge screen into the upper annular step groove. The upper edge of the discharge screen can be fixedly installed by the upper pressure ring, and at the same time, the upper edge of the discharge screen can be removed from the upper ring body by removing the upper pressure ring.

[0012] As a further solution of the present invention, the screen gland assembly includes an inner cover plate and an outer gland, the upper outer wall of the inner cover plate is provided with a lower annular step groove, the circumferential outer wall of the inner cover plate is fitted with an outer gland by means of a threaded fit, and the outer gland presses the lower edge of the discharge screen into the lower annular step groove. The lower edge of the discharge screen is fixed by the screen gland assembly to ensure that the discharge screen can stably maintain a cylindrical shape.

[0013] As a further solution of the present invention, a lower annular step groove is provided on the upper outer wall of the lower end cover, and the circumferential outer wall of the lower end cover is fitted with an external pressure cover through a thread, and the external pressure cover presses the lower edge of the discharge screen into the lower annular step groove of the lower end cover.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the ultrasonic field can crush the particles of the ground material and break up the agglomeration of the particles; the ultrasonic field can also shape the irregularly shaped materials and make the ground particles have better roundness; the cooling coil cools the materials; the structural design of the present invention is reasonable, the processing effect of the ground materials is better, and the material cooling function is provided; the disassembly and assembly of the discharge screen is convenient, and the subsequent cleaning and replacement are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a grinding machine ultrasonic field coil cooling discharging device;

[0016] Figure 2 It is a structural schematic diagram of the side surface of a screen support frame in a grinding machine ultrasonic field coil cooling and discharging device;

[0017] Figure 3 The present invention is a schematic structural diagram of another embodiment of an ultrasonic field coil cooling and discharging device for a grinding machine.

[0018] In the figure: 1-ultrasonic generator, 2-cooling coil, 21-cooling water inlet, 22-cooling water outlet, 3-ultrasonic support end cover, 4-discharging cylinder, 41-discharging port, 5-discharging end cover ring, 6-discharging screen, 61-upper pressure ring, 7-screen support frame, 71-upper ring body, 72-middle cylinder, 73-lower end cover, 74-rectangular strip holes, 8-screen pressure cover assembly, 81-external pressure cover, 82-internal cover plate, 9-ultrasonic transducer. DETAILED DESCRIPTION

[0019] 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.

[0020] Example 1: Please refer to Figures 1-2 , a grinding machine ultrasonic field coil cooling discharging device, including an ultrasonic device, and also includes an ultrasonic support end cover 3, a discharging cylinder 4, a discharging end cover ring 5, a discharging screen 6, a screen pressure cover assembly 8 and a cooling coil 2, the upper end of the discharging cylinder 4 is fixedly connected to the ultrasonic support end cover 3, the lower end of the discharging cylinder 4 is fixedly connected to the discharging end cover ring 5, the outer wall of the discharging cylinder 4 is fixedly connected with a discharging port 41 connected to the inside of the discharging cylinder 4, the lower end surface of the discharging end cover ring 5 is fixedly connected with a screen support frame 7, the upper end side edge of the discharging screen 6 is fixedly connected to the screen support frame 7, and the lower end side edge of the discharging screen 6 is embedded and fixed with the screen pressure cover assembly 8;

[0021] An ultrasonic device is inserted and fixed on the ultrasonic support end cover 3 ; wherein the ultrasonic device includes an ultrasonic transducer 9 located below the ultrasonic support end cover 3 and an ultrasonic generator 1 located above the ultrasonic support end cover 3 .

[0022] The ultrasonic support end cap 3 is also fixed with a cooling water inlet 21 and a cooling water outlet 22. The screen support frame 7 is provided with a cooling coil 2 inside. The cooling coil 2 surrounds the ultrasonic transducer 9. One end of the cooling coil 2 is connected to the cooling water inlet 21, and the other end of the cooling coil 2 is connected to the cooling water outlet 22. The cooling liquid is introduced through the cooling water inlet 21 and enters the cooling coil 2 to cool the material. The cooling liquid after heat exchange is finally discharged from the cooling water outlet 22 to ensure that the temperature of the discharged material is normal. The cooling water coil 2 is wound around the ultrasonic transducer 9, which can effectively cool the material whose temperature rises during the grinding process of the grinder.

[0023] The working principle of the present invention is: when in use, the coil-type cooling and discharging device of this embodiment is installed at the discharge port of the sand mill. The material is ground by the grinder and reaches the corresponding fineness. Then, it passes through the discharge screen 6 and the screen support frame 7, and enters the discharge cavity inside the screen support frame 7, that is, enters the ultrasonic field generated by the ultrasonic transducer 9. The ultrasonic field will crush the particles of the ground material and break up the agglomeration of the particles. The ultrasonic field also has a shaping effect on irregularly shaped materials, so that the ground particles have better roundness. The cooling coil 2 cools the material, and the final material enters the inside of the discharge cylinder 4, and finally reaches the discharge port 41, thereby discharging the material.

[0024] The upper end surface of the discharge cylinder 4 can be welded and fixedly connected with the cylinder upper flange, which is fixedly connected to the ultrasonic support end cover 3 by bolts, and the lower end surface of the discharge cylinder 4 can be welded and fixedly connected with the cylinder lower flange, which is fixedly connected to the discharge end cover ring 5 by bolts. The structural design of the discharge cylinder 4 is reasonable, and it is convenient to be assembled with other components.

[0025] Specifically, the screen support frame 7 includes an upper ring body 71, a middle cylinder 72 and a lower end cover 73. The upper end of the middle cylinder 72 is fixedly connected to the upper ring body 71, the upper ring body 71 is welded and fixed to the lower end surface of the discharge end cover ring 5, the lower end of the middle cylinder 72 is fixedly connected to the lower end cover 73, and rectangular strip holes 74 or waist-shaped holes are distributed on the middle cylinder 72. The structure design of the screen support frame 7 is reasonable, and it has a high support strength for the discharge screen 6, which can effectively protect the discharge screen 6 from deformation.

[0026] An upper annular step groove is provided on the outer wall of the lower end of the upper ring body 71, and an upper pressing ring 61 is fitted on the circumferential outer wall of the upper ring body 71 through threaded cooperation, and the upper pressing ring 61 presses the upper edge of the discharge screen 6 against the upper annular step groove. Such a structural design facilitates the fixing and installation of the upper edge of the discharge screen 6, and also facilitates the removal of the upper edge of the discharge screen 6 from the upper ring body 71.

[0027] The screen gland assembly 8 includes an inner cover plate 82 and an outer gland 81. A lower annular step groove is provided on the upper outer wall of the inner cover plate 82. The circumferential outer wall of the inner cover plate 82 is fitted with the outer gland 81 through a threaded fit. The outer gland 81 presses the lower edge of the discharge screen 6 against the lower annular step groove. The screen gland assembly 8 is used to fix the lower edge of the discharge screen 6, ensuring that the discharge screen 6 can stably maintain a cylindrical shape, which is conducive to the rapid passage of materials.

[0028] Example: 2: Please refer to Figure 3 , a grinding machine ultrasonic field coil cooling discharging device, which is different from the aforementioned embodiment in that a lower annular step groove is provided on the upper outer wall of the lower end cover 73, and the circumferential outer wall of the lower end cover 73 is fitted with an external pressure cover 81 through a thread, and the external pressure cover 81 presses the lower edge of the discharging screen 6 against the lower annular step groove of the lower end cover 73.

[0029] In this embodiment, the lower annular step groove is directly opened on the upper outer wall of the lower end cover 73. Only the external pressure cover 81 and the lower end cover 73 need to cooperate to fix the lower edge of the discharge screen 6, which has a better supporting and shaping effect on the discharge screen 6, and has relatively fewer parts and components, and lower assembly and production costs.

[0030] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

Claims

1. A grinding machine ultrasonic field coil cooling discharging device, comprising an ultrasonic device, characterized in that: It also includes an ultrasonic support end cover (3), a discharge cylinder (4), a discharge end cover ring (5), a discharge screen (6), a screen pressure cover assembly (8) and a cooling coil (2), wherein the upper end of the discharge cylinder (4) is fixedly connected to the ultrasonic support end cover (3), the lower end of the discharge cylinder (4) is fixedly connected to the discharge end cover ring (5), a discharge port (41) connected to the inside of the discharge cylinder (4) is fixedly connected to the outer wall of the discharge cylinder (4), the lower end surface of the discharge end cover ring (5) is fixedly connected to a screen support frame (7), the upper end side edge of the discharge screen (6) is fixedly connected to the screen support frame (7), and the lower end side edge of the discharge screen (6) is embedded and fixed to the screen pressure cover assembly (8); An ultrasonic device is inserted and fixed on the ultrasonic supporting end cover (3); The screen support frame (7) comprises an upper ring body (71), a middle cylinder body (72) and a lower end cover (73); the upper end of the middle cylinder body (72) is fixedly connected to the upper ring body (71); the upper ring body (71) is welded and fixed to the lower end surface of the discharge end cover ring (5); the lower end of the middle cylinder body (72) is fixedly connected to the lower end cover (73); and rectangular strip holes (74) or waist-shaped holes are distributed on the middle cylinder body (72); An upper annular step groove is formed on the outer wall of the lower end of the upper ring body (71); an upper pressing ring (61) is fitted on the circumferential outer wall of the upper ring body (71) through threaded engagement, and the upper pressing ring (61) presses the upper edge of the discharge screen (6) against the upper annular step groove; The screen gland assembly (8) comprises an inner cover plate (82) and an outer gland (81), the upper outer wall of the inner cover plate (82) is provided with a lower annular step groove, the circumferential outer wall of the inner cover plate (82) is fitted with the outer gland (81) by means of a threaded fit, and the outer gland (81) presses the lower edge of the discharge screen (6) against the lower annular step groove; A lower annular step groove is provided on the upper outer wall of the lower end cover (73); the circumferential outer wall of the lower end cover (73) is fitted with the external pressure cover (81) through a thread; the external pressure cover (81) presses the lower edge of the discharge screen (6) into the lower annular step groove of the lower end cover (73); The ultrasonic device comprises an ultrasonic transducer (9) located below the ultrasonic support end cover (3) and an ultrasonic generator (1) located above the ultrasonic support end cover (3); The upper end surface of the discharge cylinder (4) is fixedly connected to an upper cylinder flange, which is fixedly connected to the ultrasonic support end cover (3) by bolts, and the lower end surface of the discharge cylinder (4) is fixedly connected to a lower cylinder flange, which is fixedly connected to the discharge end cover ring (5) by bolts; A cooling water inlet (21) and a cooling water outlet (22) are also inserted and fixed on the ultrasonic support end cover (3); a cooling coil (2) is arranged inside the screen support frame (7); one end of the cooling coil (2) is connected to the cooling water inlet (21) and the other end of the cooling coil (2) is connected to the cooling water outlet (22).

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