Angle steel plasma continuous polishing device and method

Abstract

The present invention discloses a device and method for continuous plasma polishing of angle steel, and belongs to the technical field of metal angle steel polishing. The input chain conveyor of the present invention is used to input the angle steel into the polishing area: the coarse polishing jet nozzle is arranged in the polishing area, and the upper and lower surfaces of the angle steel correspond to at least one coarse polishing jet nozzle respectively; at least four fine polishing jet nozzles are arranged, and the upper and lower surfaces of the angle steel correspond to at least two fine polishing jet nozzles respectively, and the fine polishing jet nozzle and the coarse polishing jet nozzle are both connected to the liquid supply pipeline; the output chain conveyor is used to move the angle steel out of the polishing area, and the present invention also discloses a polishing method of the above-mentioned polishing device, the present invention conveys the angle steel to the polishing area by the input chain conveyor, adopts a jet plasma polishing method, and combines the two procedures of coarse polishing and fine polishing to ensure the polishing effect; after each section of the angle steel is polished, it is conveyed away from the polishing area by the output chain conveyor, and the next section of the angle steel continues to enter, so as to realize the continuity of polishing.

Description

Technical Field

[0001] The invention relates to the technical field of metal angle steel polishing, and in particular to a device and method for plasma continuous polishing of angle steel. Background Art

[0002] At present, the surfaces of parts in the power, machinery and other industries need to be galvanized for anti-corrosion treatment. Before galvanizing, they need to be pickled in a pickling tank to remove surface rust and oil stains. As a commonly used structural material in the construction, machinery, automobile and other industries, the surface quality of angle steel has an important impact on the overall performance and appearance of the product. However, during the production process, angle steel undergoes rolling, cutting, welding and other processes, which may cause problems such as uneven surface and insufficient finish. Before it is put into use, it needs to be polished. Traditional chemical polishing methods, such as pickling and electrochemical polishing, do not produce ideal polishing effects, and will also produce difficult-to-treat chemical waste liquids and waste gases during the processing process.

[0003] Electrolyte plasma polishing technology is a green and environmentally friendly processing technology that combines plasma technology with electrochemical polishing technology. It uses the characteristic that plasma will discharge preferentially at the raised part of the tip to remove the material at the raised part of the metal surface, improve the surface finish, and achieve the polishing effect. Electrolyte plasma polishing technology does not use strong acid, but only uses neutral salt solution to generate plasma impact surface under direct current to achieve surface treatment, which has the characteristics of green environmental protection. For parts with complex shapes that cannot be processed by mechanical polishing, electrolyte plasma polishing can obtain a well-consistent processed surface. However, most existing polishing devices remove materials by immersing the workpiece in the electrolyte of the polishing tank to produce a series of complex reactions. Therefore, it is limited by the size of the polishing tank and can only polish some small and medium-sized metal parts. There are great limitations in the polishing of large and complex parts such as angle steel, and continuous polishing cannot be achieved. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and to provide an angle steel plasma continuous polishing device and method, which can achieve continuous polishing with high polishing accuracy.

[0005] The invention discloses an angle steel plasma continuous polishing device, comprising:

[0006] Input chain conveyor for feeding angle steel into polishing area:

[0007] A coarse jet nozzle is arranged in the polishing area, at least two of which are arranged, and the upper and lower surfaces of the angle steel correspond to at least one coarse jet nozzle respectively;

[0008] A fine polishing jet nozzle is arranged in the polishing area. At least four fine polishing jet nozzles are arranged and are all located on the side of the rough polishing jet nozzle away from the input chain conveyor. The upper and lower surfaces of the angle steel correspond to at least two fine polishing jet nozzles respectively. The fine polishing jet nozzle and the rough polishing jet nozzle are connected to the output pipeline of the polishing liquid supply assembly through a spherical universal joint.

[0009] Output chain conveyor to remove the angles from the polishing area.

[0010] The input chain conveyor and the output chain conveyor are used for conveying the angle steel, and the coarse polishing jet nozzle and the coarse polishing jet nozzle are used for polishing the upper and lower surfaces of the angle steel simultaneously by using two processes of coarse polishing and fine polishing.

[0011] As a preferred embodiment, the number of spray holes on the coarse blasting jet nozzle is smaller than the number of spray holes on the fine blasting jet nozzle; the spacing between adjacent spray holes on the coarse blasting jet nozzle is larger than the spacing between adjacent spray holes on the fine blasting jet nozzle.

[0012] As a preferred embodiment, the diameters of the spray holes on the coarse jet nozzle and the fine jet nozzle are both 2 mm.

[0013] As a preferred embodiment, the coarse jet nozzle and the fine jet nozzle both include a buffer chamber and a spray hole seat, wherein the buffer chamber is connected to a spherical universal joint, the spray hole seat is fixedly connected to the end face of the buffer chamber, and a plurality of spray holes are arranged on the spray hole seat.

[0014] As a preferred embodiment, the polishing area is located in a cabinet structure, an inlet for the angle steel to enter is provided at a position on the cabinet structure corresponding to the input chain conveyor, an outlet for the angle steel to move out is provided at a position on the cabinet structure corresponding to the output chain conveyor, a guide device is provided at the lower edge of the inner bottom edge of the inlet, the guide device includes two guide wheels and a V-block, the guide wheels are respectively abutted against two inclined surfaces of the angle steel, and the V-block is provided between the guide wheels and the inlet.

[0015] As a preferred embodiment, the guide device also includes a connecting plate and a support frame, the connecting plate is provided with a slide groove, the connecting plate is installed in the inlet through the support frame, the guide wheel is symmetrically installed in the slide groove through a slide rod, and the V-block is installed on the connecting plate.

[0016] As a preferred embodiment, a control box is further included, on which a control panel is arranged, the guide wheels and V-blocks in the guide device are provided with conductive coatings, and the guide wheels and V-blocks are also connected to the positive pole of the power supply in the control box, and the coarse polishing jet nozzle and the fine polishing jet nozzle are connected to the negative pole of the power supply in the control box to realize electrolyte plasma polishing.

[0017] As a preferred embodiment, the output pipeline of the polishing liquid supply assembly is provided with a solenoid valve, a throttle valve and a pressure detection member in sequence along the liquid flow direction, so as to adjust the injection speed and pressure of the polishing liquid by adjusting the throttle valve and the pressure detection member.

[0018] As a preferred embodiment, the coarse casting jet nozzle and the fine casting jet nozzle are both arranged on the ball screw module through a support arm, so as to adjust the distance between the upper and lower coarse casting jet nozzles and the upper and lower groups of fine casting jet nozzles.

[0019] The second object of the present invention is to provide a polishing method for the above-mentioned angle steel plasma continuous polishing device, comprising the following steps:

[0020] When the angle steel is transported to the polishing area through the input chain conveyor, the orientation of the angle steel is adjusted to ensure that the angle steel is located within the spraying range of the coarse polishing jet nozzle and the fine polishing jet nozzle when entering the polishing area;

[0021] The rough polishing jet nozzle and the fine polishing jet nozzle are connected to the output pipeline of the polishing liquid supply assembly through a spherical universal joint to achieve full rotation of each rough polishing jet nozzle and the fine polishing jet nozzle;

[0022] The rough polishing and fine polishing processes are adopted. The rough polishing is performed by at least two rough polishing jet nozzles at the top and bottom to perform the first rough polishing on the angle steel. The fine polishing is performed by at least four fine polishing jet nozzles at the top and bottom to perform the second fine polishing on the angle steel.

[0023] By adjusting the injection speed and pressure of the polishing liquid, the position and direction of the coarse polishing jet nozzle and the fine polishing jet nozzle are controlled to change the jet position, direction and angle.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The angle steel plasma continuous polishing device of the present invention adopts jet plasma polishing, which is not limited by the size of the polishing tank and can realize the polishing of large angle steels. It solves the problem that traditional immersion plasma polishing is limited by the size of the polishing tank and has great limitations for the polishing of some large and complex parts.

[0026] The present invention conveys the angle steel to the polishing area by means of an input chain conveyor, and combines the rough polishing and fine polishing procedures to ensure the polishing effect, wherein the rough polishing is performed by two upper and lower rough polishing jet nozzles on the angle steel for the first time, and the fine polishing is performed by four upper and lower fine polishing jet nozzles on the angle steel for the second time; after each section of the angle steel is polished, it is conveyed away from the polishing area by the output chain conveyor, and the next section of the angle steel continues to enter the polishing area for polishing, thereby realizing the continuity of polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a schematic structural diagram of the angle steel plasma continuous polishing device in an embodiment of the present invention.

[0028] Figure 2 It is a side view of the angle steel plasma continuous polishing device in an embodiment of the present invention.

[0029] Figure 3 Schematic diagram of the cabinet structure in an embodiment of the present invention.

[0030] Figure 4 Schematic diagram of a jet nozzle in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Input chain conveyor, 2. Angle steel, 3. Coarse jet nozzle, 4. Fine jet nozzle, 5. Output chain conveyor, 6. Spray hole, 7. Buffer chamber, 8. Spray hole seat, 9. Guide wheel, 10. V-block, 11. Connecting plate, 12. Support frame, 15. Control box, 16. Output pipeline, 17. Solenoid valve, 18. Throttle valve, 19. Pressure detection component, 20. Ball screw module, 21. Water pump, 22. Liquid storage tank, 23. Cabinet structure, 25. Glass side panel, 26. Frame, 27. Upper support arm, 28. Lower support arm, 29. Waste liquid tank, 30. Universal joint ball screw, 31. Universal joint nut, 34. V-groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with ordinary skills in the field to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The current plasma polishing equipment is only suitable for immersing some small and medium-sized metal parts in the polishing liquid of the equipment to achieve surface polishing. It is unable to perform plasma polishing on large-sized angle steels 2, resulting in problems in continuous polishing and other aspects of the polishing of the angle steels 2.

[0036] Based on this, this embodiment provides an angle steel plasma continuous polishing device, which adopts jet plasma polishing and can realize polishing of angle steel 2 without being limited by the size of the polishing groove. The angle steel 2 is conveyed by a chain conveyor, and the surface of the angle steel 2 is polished by a continuous local polishing method to realize continuous polishing. A polishing method combining rough polishing and fine polishing and spraying simultaneously from top to bottom is adopted to realize high-precision polishing of the angle steel 2 in all directions and with full coverage.

[0037] The angle steel plasma continuous polishing device of this embodiment is described in detail below with reference to the accompanying drawings.

[0038] A plasma continuous polishing device for angle steel in this embodiment, such as Figure 1-Figure 4 As shown, including:

[0039] Input chain conveyor 1, used to input angle steel 2 to the polishing area:

[0040] A rough casting jet nozzle 3 is arranged in the polishing area, and at least two are arranged, and the upper and lower surfaces of the angle steel 2 correspond to at least one rough casting jet nozzle 3 respectively;

[0041] A fine polishing jet nozzle 4 is arranged in the polishing area. At least four fine polishing jet nozzles 4 are arranged and are all located on the side of the rough polishing jet nozzle 3 away from the input chain conveyor 1. The upper and lower surfaces of the angle steel 2 correspond to at least two fine polishing jet nozzles 4 respectively. The fine polishing jet nozzle 4 and the rough polishing jet nozzle 3 are both connected to the output pipeline 16 of the polishing liquid supply assembly through a spherical universal joint. The rough polishing jet nozzle 3 and the fine polishing jet nozzle 4 of this embodiment respectively include jet nozzles arranged on the upper and lower surfaces of the angle steel 2, so that the upper and lower surfaces of the angle steel 2 can be polished simultaneously, thereby ensuring the polishing accuracy and improving the polishing efficiency.

[0042] The output chain conveyor 5 is used to move the angle steel 2 out of the polishing area.

[0043] See also Figure 1 The angle steel plasma continuous polishing device of this embodiment mainly includes a polishing part and a conveying part, wherein the conveying part includes the input chain conveyor 1 and the output chain conveyor 5 of this embodiment, the input chain conveyor 1 can convey the unpolished angle steel 2 to the polishing area of ​​the polishing part, and the output chain conveyor 5 can convey the polished angle steel 2 away from the polishing area. In this embodiment, the angle steel 2 is conveyed by the chain conveyor, and the surface of the angle steel 2 is polished by a continuous local polishing method to achieve continuous polishing.

[0044] The polishing part of this embodiment mainly includes a coarse polishing jet nozzle 3 and a fine polishing jet nozzle 4, and both the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 are connected to the output pipeline 16 of the polishing liquid supply component so that the polishing liquid can be transported to the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4. In order to meet the requirements of polishing accuracy, the present embodiment adopts two procedures of rough polishing and fine polishing to polish the angle steel 2, and not only uses the upper jet nozzle for polishing, but also arranges jet nozzles above and below the angle steel 2 to polish the angle steel 2 at the same time, so that the angle steel 2 can be polished on both sides without turning over during polishing; in the present embodiment, the rough polishing is performed by the upper and lower two rough polishing jet nozzles 3 for the first rough polishing of the angle steel 2, that is, a rough polishing jet nozzle 3 is arranged respectively at the upper and lower parts; the fine polishing is performed by the upper and lower four fine polishing jet nozzles 4 for the second fine polishing of the angle steel 2, that is, two fine polishing jet nozzles 4 are arranged respectively at the upper and lower parts, and the position of the fine polishing jet nozzle 4 is located on the side of the rough polishing jet nozzle 3 away from the input chain conveyor 1, so that the angle steel 2 is rough polished first, and fine polishing is performed after the rough polishing is completed. The present embodiment adopts a polishing method that combines rough polishing with fine polishing and sprays simultaneously at the upper and lower parts, which can realize thorough polishing of the angle steel 2 with full coverage in all directions, and effectively improve the polishing efficiency.

[0045] As a preferred embodiment, the output pipeline 16 is also provided with a solenoid valve 17, a throttle valve 18 and a pressure detection component 19 in sequence along the flow direction of the liquid. As a preferred embodiment, the output pipeline 16 is connected to the liquid storage tank 22 through a water pump 21, and a two-position two-way solenoid valve 17, a throttle valve 18 and a pressure detection component 19 are provided on the output pipeline 16. In this embodiment, the pressure detection component 19 is specifically a pressure gauge. A more specific connection method is that the inlet of the water pump 21 is located in the liquid storage tank 22, the outlet of the water pump 21 is connected to the inlet of the two-position two-way solenoid valve 17 through the output pipeline 16, the outlet of the two-position two-way solenoid valve 17 is connected to the inlet of the throttle valve 18 through the output pipeline 16, the outlet of the throttle valve 18 is connected to a voltmeter through the output pipeline 16, and the voltmeter is connected to the coarse jet nozzle 3 and the fine jet nozzle 4 through the output pipeline 16. In this way, the polishing liquid passes through the water pump 21, the two-position two-way solenoid valve 17, the throttle valve 18, and the pressure detection component 19 in sequence and enters the rough polishing jet nozzle 3 and the fine polishing jet nozzle 4. The water pump 21 provides power for the delivery of the polishing liquid, the two-position two-way solenoid valve 17 controls the on-off of the polishing liquid, the throttle valve 18 controls the flow rate of the polishing liquid, and the pressure gauge measures and displays the pressure of the polishing liquid in the output pipeline 16.

[0046] As a preferred embodiment, the number of spray holes 6 on the rough-polishing jet nozzle 3 is less than the number of spray holes 6 on the fine-polishing jet nozzle 4; the spacing between adjacent spray holes 6 on the rough-polishing jet nozzle 3 is greater than the spacing between adjacent spray holes 6 on the fine-polishing jet nozzle 4. The rough-polishing jet nozzle 3 of this embodiment has a small number of spray holes 6 and is relatively scattered, mainly for preliminary and rough polishing of the polished angle steel 2; the fine-polishing jet nozzle 4 has a larger number of spray holes 6 than the rough-polishing jet nozzle 3 and is more concentrated. When fine-polishing is performed, there are two jet nozzles on the upper and lower sides for polishing, which covers a wider area and sprays more evenly.

[0047] As a more preferred embodiment, the diameters of the nozzle holes 6 on the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 are both 2 mm, so that the diffusion area of ​​the polishing liquid is larger and more uniform, and the polishing is finer.

[0048] As a preferred embodiment, the coarse jet nozzle 3 and the fine jet nozzle 4 both include a buffer chamber 7 and a spray hole seat 8, wherein the buffer chamber 7 is connected to the spherical universal joint, the spray hole seat 8 is fixedly connected to the end surface of the buffer chamber 7, and a plurality of spray holes 6 are arranged in the spray hole seat 8, and the buffer chamber 7 is used to buffer the polishing liquid so that the polishing liquid can be uniformly sprayed from the plurality of spray holes 6. The spherical universal joint includes a universal joint ball screw 30 and a universal joint nut 31, such as Figure 4 As shown, the universal joint ball screw 30 is connected to the liquid outlet of the output pipeline 16 , the buffer chamber 7 is connected to the universal joint ball screw 30 via a universal joint nut 31 , and the spray hole seat 8 is located at the end of the buffer chamber 7 .

[0049] As a preferred embodiment, the polishing area is located in the cabinet structure 23, and an inlet for the angle steel 2 to enter is provided at a position on the cabinet structure 23 corresponding to the input chain conveyor 1, and an outlet for the angle steel 2 to move out is provided at a position on the cabinet structure 23 corresponding to the output chain conveyor 5. The input chain conveyor 1 conveys the angle steel 2 near the cabinet structure 23 in a horizontal direction, so that the angle steel 2 enters the polishing area and is in a polishing working state; the output chain conveyor 5 conveys the angle steel 2 away from the cabinet structure 23 in a horizontal direction, so that the angle steel 2 leaves the polishing area and is in a non-polishing state. It should be pointed out that whether the angle steel 2 is polished can be controlled according to the state of the surface of the angle steel 2. For the segments that have not been polished, the input chain conveyor 1 continues to push the angle steel 2 into the polishing area in the cabinet structure 23 for polishing operations, remove burrs, and improve the glossiness of the surface of the angle steel 2; for the segments whose surface glossiness can meet the requirements, the output chain conveyor 5 conveys the angle steel 2 out of the cabinet structure 23, and no polishing operation is required, saving polishing time.

[0050] In this embodiment, a guide device is provided at the lower edge of the inner bottom edge of the inlet of the cabinet structure 23, and the guide device includes two guide wheels 9 and a V-shaped block 10. The guide wheels 9 are respectively in contact with the two inclined surfaces of the angle steel 2, and the V-shaped block 10 is arranged between the guide wheels 9 and the inlet. In this embodiment, the two chain conveyors are completely identical and are arranged on the left and right sides of the cabinet structure 23 respectively. The input chain conveyor 1 conveys the angle steel 2 to be polished into the cabinet structure 23 for polishing, and the output chain conveyor 5 conveys the polished angle steel 2 to leave the cabinet structure 23; the two guide wheels 9 and a V-shaped block 10 of the guide device are used to correct the deviation or skew problem of the angle steel 2 during the conveying process, so that the angle steel 2 enters the cabinet structure 23 in the correct direction for polishing; as a more preferred embodiment, each chain plate of the input chain conveyor 1 and the output chain conveyor 5 is provided with a V-shaped groove 34, and the position of the V-shaped groove 34 corresponds to the position of the angle steel 2 in the input chain conveyor 1 and the output chain conveyor 5.

[0051] The fine polishing jet nozzle 4 and the rough polishing jet nozzle 3 of this embodiment are arranged in a cabinet structure 23. A back plate is arranged behind the cabinet structure 23, and glass side plates 25 are arranged on the left and right sides. The entire cabinet structure 23 is formed by a frame 26 as an outer frame, a back plate and glass side plates 25. As a preferred embodiment, a waste liquid tank 29 is arranged at the bottom of the cabinet structure 23 to collect the used polishing liquid. Figure 3As shown, the glass side panels 25 on the left and right sides of the cabinet structure 23 are provided with rectangular windows, namely, an inlet and an outlet. The rectangular windows can allow the angle steel 2 to pass through. The angle steel 2 passes through the inlet on the glass side panel 25 on the input side, the coarse polishing jet nozzle 3, the fine polishing jet nozzle 4 and the outlet on the glass side panel 25 on the output side in sequence and extends to leave the polishing area. In this embodiment, the polishing process can be seen through the glass side panel 25 to perform corresponding control adjustments. As an alternative, a camera can also be installed in the cabinet structure 23 to achieve all-round monitoring of the polishing process and polishing effect.

[0052] As a preferred embodiment, the guide device further comprises a connecting plate 11 and a support frame 12. The connecting plate 11 is provided with a slide groove. The connecting plate 11 is installed in the inlet through the support frame 12. The guide wheel 9 is symmetrically installed in the slide groove through a slide rod. The V-block 10 is installed on the connecting plate 11. When the angle steel 2 is transported to the guide device, first, the guide wheel 9 contacts the two inclined surfaces of the angle steel 2. Since the guide wheel 9 is connected to the slide groove through a slide rod, the guide wheel 9 can move freely in the slide groove. Therefore, the angle steel 2 can be initially corrected by the guide wheel 9 for the deviation or skew problem in the transportation process, so that the angle steel 2 returns to the correct direction. Subsequently, the angle steel 2 is transported to the V-block 10. Since the angle steel 2 has been initially adjusted by the guide wheel 9 before, it is now moving in the correct direction. Therefore, the V-block 10 is used to adjust the orientation of the angle steel 2 again to ensure that the angle steel 2 faces the jet nozzle when entering the polishing area, so as to ensure smooth polishing.

[0053] As a preferred mode, it also includes a control box 15, on which a control panel is provided, the guide wheel 9 and the V-block 10 in the guide device are connected to the positive pole of the power supply in the control box 15, and the surfaces of the guide wheel 9 and the V-block 10 have a conductive coating, such as a copper coating, so that the angle steel 2 is connected to the positive pole of the power supply, and the rough polishing jet nozzle 3 and the fine polishing jet nozzle 4 are connected to the negative pole of the power supply in the control box 15 to achieve electrolyte plasma polishing. The throttle valve 18 and the pressure gauge are adjusted by operating the control panel to achieve the purpose of changing the direction of the jet nozzle.

[0054] This embodiment can apply voltage to the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 so that the polishing liquid sprayed onto the angle steel 2 by the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 is rapidly vaporized to form an air layer surrounding the angle steel, and discharge channels are formed at different positions of the air layer to selectively remove the surface material of the angle steel 2, thereby achieving polishing of the surface of the angle steel 2.

[0055] As a preferred embodiment, the coarse blasting jet nozzle 3 and the fine blasting jet nozzle 4 are both arranged on the ball screw module 20 through a support arm, so as to adjust the distance between the upper and lower coarse blasting jet nozzles 3 and the upper and lower groups of fine blasting jet nozzles 4.

[0056] There are four ball screw modules 20 in the present embodiment, which are symmetrically installed on the cabinet structure 23 in upper and lower directions and left and right directions. The support arms include an upper support arm 27 and a lower support arm 28. In the present embodiment, the coarse-cast jet nozzle 3 and the fine-cast jet nozzle 4 are connected to the ball screw module 20 through the upper support arm 27 and the lower support arm 28, and the Z-axis movement of the jet nozzle is realized through the ball screw module 20.

[0057] As a more specific way, the screw nut on each ball screw module 20 is connected to a slider, and each slider is respectively provided with an upper arm 27 and a lower arm 28, and each upper arm 27 and lower arm 28 are respectively connected to the corresponding coarse polishing jet nozzle 3 and fine polishing jet nozzle 4, and the slider drives the upper arm 27 and the lower arm 28 to move in the vertical direction, and the upper arm 27 and the lower arm 28 drive the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 to move in the vertical direction, so as to control the distance between the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 and the angle steel 2, so as to achieve a better polishing effect.

[0058] The ball screw module 20 , the waste liquid tank 29 , the fine blasting jet nozzle 4 and the coarse blasting jet nozzle 3 in this embodiment are all located in the cabinet structure 23 , and the waste liquid tank 29 is arranged at the bottom of the cabinet structure 23 .

[0059] As another typical embodiment, using Figure 1-Figure 4 The polishing method of the angle steel plasma continuous polishing device shown in the figure comprises the following steps:

[0060] When the angle steel 2 is conveyed to the polishing area through the input chain conveyor 1, the orientation of the angle steel 2 is adjusted to ensure that the angle steel 2 is located within the spraying range of the coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 when entering the polishing area.

[0061] The coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4 are both connected to the output pipeline 16 of the polishing liquid supply assembly through a spherical universal joint to achieve omnidirectional rotation of each coarse polishing jet nozzle 3 and the fine polishing jet nozzle 4.

[0062] Two processes of rough polishing and fine polishing are adopted. The rough polishing is performed by at least two rough polishing jet nozzles 3 above and below to perform the first rough polishing on the angle steel 2. The fine polishing is performed by at least four fine polishing jet nozzles 4 above and below to perform the second fine polishing on the angle steel 2.

[0063] By adjusting the injection speed and pressure of the polishing liquid, the position and direction of the rough polishing jet nozzle 3 and the fine polishing jet nozzle 4 are controlled to change the jet position, direction and angle.

[0064] As a more specific embodiment, when the angle steel 2 is conveyed to the guide device, first, the guide wheel 9 contacts the two inclined surfaces of the angle steel 2, and the guide wheel 9 preliminarily corrects the deviation or skew problem occurring during the conveying process, so that the angle steel 2 returns to the correct direction; then, the angle steel 2 is conveyed to the V-block 10, and the V-block 10 is used to adjust the orientation of the angle steel 2 again to ensure that the angle steel 2 faces the jet nozzle when entering the polishing area, thereby ensuring smooth polishing.

[0065] The jet nozzles are connected to the output pipeline 16 via a spherical universal joint to achieve full rotation of each jet nozzle.

[0066] Polishing is divided into two procedures: rough polishing and fine polishing. The rough polishing is performed by the upper and lower two rough polishing jet nozzles 3 to perform the first rough polishing on the angle steel 2, and the fine polishing is performed by the upper and lower four fine polishing jet nozzles 4 to perform the second fine polishing on the angle steel 2. The rough polishing jet nozzle 3 has a small number of spray holes 6 and is relatively scattered, and is mainly used to perform preliminary rough polishing on the polished angle steel 2. The fine polishing jet nozzle 4 has a larger number of spray holes 6 than the rough polishing jet nozzle 3 and is more concentrated. When fine polishing is performed, there are two jet nozzles at the upper and lower levels for polishing, which covers a wider area and sprays more evenly.

[0067] The throttle valve 18 is controlled to adjust the injection speed and pressure of the polishing liquid, and the movement of the support arm and the nozzle is controlled to change the position, direction and angle of the jet.

[0068] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle steel plasma continuous polishing device, characterized in that: include: Input chain conveyor (1) for feeding the angle steels (2) into the polishing area: A coarse polishing jet nozzle (3) is arranged in the polishing area, and at least two of them are arranged, and the upper and lower surfaces of the angle steel (2) correspond to at least one coarse polishing jet nozzle (3) respectively; A fine polishing jet nozzle (4) is arranged in the polishing area, at least four of the fine polishing jet nozzles (4) are arranged, and all of them are located on the side of the rough polishing jet nozzle (3) away from the input chain conveyor (1), the upper and lower surfaces of the angle steel (2) correspond to at least two fine polishing jet nozzles (4), and the fine polishing jet nozzle (4) and the rough polishing jet nozzle (3) are both connected to the output pipeline (16) of the polishing liquid supply assembly through a spherical universal joint; The number of the spray holes (6) on the coarse blasting jet nozzle (3) is smaller than the number of the spray holes (6) on the fine blasting jet nozzle (4); the spacing between adjacent spray holes (6) on the coarse blasting jet nozzle (3) is larger than the spacing between adjacent spray holes (6) on the fine blasting jet nozzle (4); The polishing area is located in the cabinet structure (23); an inlet for the angle steel (2) to enter is provided at a position on the cabinet structure (23) corresponding to the input chain conveyor (1); an outlet for the angle steel (2) to exit is provided at a position on the cabinet structure (23) corresponding to the output chain conveyor (5); a guide device is provided at the lower edge of the inner bottom edge of the inlet; the guide device comprises two guide wheels (9) and a V-shaped block (10); the guide wheels (9) are respectively in contact with two inclined surfaces of the angle steel (2); and the V-shaped block (10) is provided between the guide wheels (9) and the inlet; It also includes a control box (15), on which a control panel is provided, the guide wheel (9) and the V-shaped block (10) in the guide device are both provided with a conductive coating, and the guide wheel (9) and the V-shaped block (10) are both connected to the positive electrode of the power supply in the control box (15), and the coarse polishing jet nozzle (3) and the fine polishing jet nozzle (4) are both connected to the negative electrode of the power supply in the control box (15), so as to realize electrolyte plasma polishing; An output chain conveyor (5) is used to move the angle steel (2) out of the polishing area.

2. The angle steel plasma continuous polishing device according to claim 1, characterized in that: The diameters of the spray holes (6) on the coarse jet nozzle (3) and the fine jet nozzle (4) are both 2 mm.

3. The angle steel plasma continuous polishing device according to claim 1, characterized in that: The coarse jet nozzle (3) and the fine jet nozzle (4) both comprise a buffer chamber (7) and a spray hole seat (8), wherein the buffer chamber (7) is connected to a spherical universal joint, the spray hole seat (8) is fixedly connected to an end surface of the buffer chamber (7), and a plurality of spray holes (6) are provided on the spray hole seat (8).

4. The angle steel plasma continuous polishing device according to claim 1, characterized in that: The guide device further comprises a connecting plate (11) and a support frame (12), wherein a slide groove is provided on the connecting plate (11), the connecting plate (11) is installed in the inlet through the support frame (12), the guide wheel (9) is symmetrically installed in the slide groove through a slide rod, and the V-shaped block (10) is installed on the connecting plate (11).

5. The angle steel plasma continuous polishing device according to claim 1, characterized in that: An electromagnetic valve (17), a throttle valve (18) and a pressure detection element (19) are sequentially arranged on the output pipeline (16) of the polishing liquid supply assembly along the flow direction of the liquid.

6. The angle steel plasma continuous polishing device according to claim 1, characterized in that: The coarse casting jet nozzle (3) and the fine casting jet nozzle (4) are both arranged on the ball screw module (20) via a support arm, and are used to adjust the distance between the upper and lower two coarse casting jet nozzles (3) and the upper and lower two groups of fine casting jet nozzles (4).

7. The polishing method of the angle steel plasma continuous polishing device according to claim 1, characterized in that: The following steps are involved: When the angle steel (2) is transported to the polishing area through the input chain conveyor (1), the orientation of the angle steel (2) is adjusted to ensure that the angle steel (2) is located within the spraying range of the coarse polishing jet nozzle (3) and the fine polishing jet nozzle (4) when entering the polishing area; The coarse polishing jet nozzle (3) and the fine polishing jet nozzle (4) are both connected to the output pipeline (16) of the polishing liquid supply assembly via a spherical universal joint, so as to realize the full rotation of each coarse polishing jet nozzle (3) and the fine polishing jet nozzle (4); Two processes of rough polishing and fine polishing are adopted, wherein the rough polishing is performed by at least two rough polishing jet nozzles (3) at the top and bottom to perform a first rough polishing on the angle steel (2), and the fine polishing is performed by at least four fine polishing jet nozzles (4) at the top and bottom to perform a second fine polishing on the angle steel (2); By adjusting the injection speed and pressure of the polishing liquid, the position and direction of the coarse polishing jet nozzle (3) and the fine polishing jet nozzle (4) are controlled to change the jet position, direction and angle.

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