A sanding device for tungsten wire diamond wire using extrusion coating

Abstract

The application discloses a tungsten wire diamond wire sanding device using extrusion coating, which comprises a feeding part and a coating part arranged on the feeding part; the feeding part comprises a heating box, a high-temperature pump is arranged on the inner wall bottom of the heating box, the output end of the high-temperature pump is fixedly connected with a feeding pipe, and the end of the feeding pipe away from the high-temperature pump extends out of the heating box; a rack is arranged on the top of the heating box; the coating part comprises a sleeve, the inside of the sleeve is fixedly connected with the feeding pipe, the outer end of the sleeve is sealingly and rotatably connected with an outer cylinder, the outer cylinder is arranged in a symmetrical distribution with the sleeve as the center, the outer cylinder is rotatably connected to the rack, and an inner cylinder is rotatably arranged between the adjacent surfaces of the two outer cylinders; and the application can improve the uniformity of the busbar sanding.

Description

Technical Field

[0001] This invention relates to the field of diamond wire abrasion technology, and more specifically to a device for abrasion of tungsten wire diamond wire using extrusion coating. Background Technology

[0002] Diamond wire is made by uniformly bonding diamond micro-powder particles to a base wire (usually high-carbon steel wire) at a certain distribution density. The cutting purpose is achieved by high-speed grinding motion between the diamond wire and the object being cut.

[0003] Physical extrusion coating of diamond wire is an advanced diamond wire manufacturing process. It involves physically extruding diamond particles onto the diamond wire. The general steps are as follows: A resin-based polymer material, such as phenolic resin, is heated with diamond to form a mixture. This mixture is then placed in an extruder, and through physical extrusion, the mixture is forced to adhere tightly to the diamond wire. After cooling and solidification, a diamond wire with solidified diamond particles is formed. Because molten phenolic resin has a certain degree of fluidity, and the diamond particles in the mixture have a relatively high density, some diamond particles settle, resulting in poor uniformity of the coating on the diamond wire. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention provides a device for abrasive coating of tungsten wire diamond wire using extrusion coating, comprising a feeding section and a coating section disposed in the feeding section;

[0006] The feeding section includes a heating box, a high-temperature pump is installed at the bottom of the inner wall of the heating box, the output end of the high-temperature pump is fixedly connected to a feeding pipe, and the end of the feeding pipe away from the high-temperature pump extends out of the heating box; a frame is installed on the top of the heating box.

[0007] The coating section includes a sleeve, the inside of which is fixedly connected to the feed pipe. An outer cylinder is rotatably connected to the outer end of the sleeve. Two outer cylinders are provided and symmetrically distributed around the sleeve. The outer cylinders are rotatably connected to the frame. An inner cylinder is rotatably provided between the adjacent surfaces of the two outer cylinders.

[0008] Furthermore, the outer end of the inner cylinder is fixedly connected to a wrapping ring that fits against the outer circumferential surface of the external diamond wire busbar, and the end of the inner cylinder away from the wrapping ring adopts an open design.

[0009] Furthermore, the outer cylinder is rotatably connected to a hollow shaft at the end away from the wrapping ring, which is connected to the open end of the inner cylinder, and a pulley is fixedly connected to the end of the outer cylinder away from the hollow shaft.

[0010] Furthermore, a drive unit is fixedly connected to the top of the heating box, and the output end of the drive unit is connected to the pulley via a belt assembly. An overflow hole and a return hole are respectively opened on the top of the heating box.

[0011] Furthermore, the outer circumferential surface of the hollow shaft is rotatably sealed with an extrusion tube. The end of the extrusion tube away from the hollow shaft is located directly above the reflux hole. The extrusion tube has an extrusion channel inside that is coaxial with the external diamond wire busbar, and the diameter of the extrusion channel decreases from left to right.

[0012] Furthermore, a return pipe is fixedly connected to the outer circumference of the extrusion tube, the bottom end of the return pipe passes through the heating box and extends into the interior, and a return plate is rotatably connected to the bottom end of the return pipe.

[0013] Furthermore, the outer circumferential surface of the inner cylinder is provided with several sets of annular grooves, and the inner wall of the multiple annular grooves is provided with several sets of feed holes.

[0014] Furthermore, a smooth rod is fixedly connected to the inner wall of the outer cylinder, a curved plate is fixedly connected to the outer circumference of the smooth rod, and a scraper that fits against the inner wall of the annular groove is fixedly connected to the side of the curved plate away from the smooth rod.

[0015] The technical solution provided by this invention has the following advantages compared with the prior art:

[0016] This invention includes a coating section. The mixture is introduced into the space enclosed by the sleeve and the outer cylinder through the feeding pipe. Due to the rapid rotation of the outer cylinder, the flowing mixture is continuously and rapidly stirred, which can quickly and evenly stir the sinking diamond abrasive. Then, the pressure in the space enclosed by the sleeve and the outer cylinder continuously increases. The stirred mixture flows into the space enclosed by the inner cylinder. The pressure inside the inner cylinder continuously increases, and the mixture is forced to adhere tightly to the diamond wire through physical compression, thereby improving the uniformity of the abrasive on the wire. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional multi-angle structural schematic diagram of an embodiment of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the feeding section according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional partial separation of the coating part according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the three-dimensional cross-section of the extrusion tube according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional separation of the sleeve and outer cylinder in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of a partial three-dimensional cross-section of the outer cylinder according to an embodiment of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the outer and inner cylinders according to an embodiment of the present invention;

[0026] Figure 9 This is a three-dimensional multi-angle structural diagram of the outer and inner cylinders in an embodiment of the present invention.

[0027] The labels in the diagram represent: 1. Feeding section; 11. Heating box; 111. Overflow hole; 112. Return hole; 12. High-temperature pump; 13. Feeding pipe; 2. Coating section; 21. Sleeve; 22. Outer cylinder; 221. Hollow shaft; 222. Pulley; 223. Smooth rod; 224. Bending plate; 225. Scraper; 23. Inner cylinder; 231. Wrapping ring; 232. Annular groove; 233. Feed hole; 24. Frame; 25. Extrusion tube; 251. Extrusion channel; 252. Return pipe; 253. Return plate; 3. Drive unit. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] The present invention will be further described below with reference to embodiments.

[0030] Example:

[0031] Please see Figures 1-9 This invention provides a technical solution: a device for abrasive application using extrusion-coated tungsten wire diamond wire, comprising:

[0032] The feeding unit 1 includes a heating box 11. A high-temperature pump 12 is fixedly connected to the bottom of the inner wall of the heating box 11 by a bracket. The output end of the high-temperature pump 12 is fixedly connected to a feeding pipe 13, and the end of the feeding pipe 13 away from the high-temperature pump 12 passes through the heating box 11 and extends to the outside.

[0033] The coating section 2 is provided in the feeding section 1. The coating section 2 includes a sleeve 21. The outer end of the sleeve 21 is rotatably connected to an outer cylinder 22. There are two outer cylinders 22, which are symmetrically distributed with the sleeve 21 as the center. An inner cylinder 23 that can be used for external diamond wire busbar extrusion coating is rotatably connected between the adjacent surfaces of one pair of outer cylinders 22.

[0034] The heating box 11 is fixedly connected to the top of a frame 24 that is rotatably connected to the outer circumferential surface of the outer cylinder 22, and the top end of the feed pipe 13 is fixedly connected to the inside of the sleeve 21.

[0035] The outer end of the inner cylinder 23 is fixedly connected to a wrapping ring 231 that fits against the outer circumference of the outer diamond wire busbar. The end of the inner cylinder 23 away from the wrapping ring 231 adopts an open design.

[0036] The outer cylinder 22 is rotatably connected to a hollow shaft 221 that is connected to the open end of the inner cylinder 23 at the end away from the wrapping ring 231, and a pulley 222 is fixedly connected to the end of the outer cylinder 22 away from the hollow shaft 221.

[0037] A drive unit 3 is fixedly connected to the top of the heating box 11. The output end of the drive unit 3 is connected to the pulley 222 via a belt assembly. An overflow hole 111 and a return hole 112 are respectively opened on the top of the heating box 11.

[0038] The outer circumference of the hollow shaft 221 is sealed and rotatably connected to the extrusion tube 25. The end of the extrusion tube 25 away from the hollow shaft 221 is located directly above the return hole 112. The extrusion tube 25 has an extrusion channel 251 inside that is on the same axis as the external diamond wire busbar, and the diameter of the extrusion channel 251 decreases from left to right.

[0039] A return pipe 252 is fixedly connected to the outer circumference of the extrusion tube 25. The bottom end of the return pipe 252 passes through the heating box 11 and extends into the interior. A return plate 253 is rotatably connected to the bottom end of the return pipe 252, which can adjust the return speed of the return pipe 252 and thus change the secondary coating pressure in the extrusion channel 251.

[0040] The outer surface of the inner cylinder 23 is provided with several sets of annular grooves 232, and the inner wall of the multiple annular grooves 232 is provided with several sets of feed holes 233.

[0041] A smooth rod 223 is fixedly connected to the inner wall of the outer cylinder 22. A bent plate 224 is fixedly connected to the outer circumference of the smooth rod 223. A scraper 225 that fits against the inner wall of the annular groove 232 is fixedly connected to the side of the bent plate 224 away from the smooth rod 223.

[0042] In actual use, the tungsten wire diamond wire abrasive device of this embodiment first passes the diamond wire through the wrapping ring 231, inner cylinder 23, hollow shaft 221, and extrusion channel 251 in sequence (the two ends of the diamond wire are taut under traction). Then, phenolic resin and other resin-based polymer materials are heated with diamond abrasive to form a mixture. The mixture is then introduced into the heating box 11 of the feeding unit 1, and the heating box 11 continuously heats the mixture to prevent solidification. Subsequently, the drive unit 3 is started, and the belt belt drives the pulley 222 on the coating unit 2 to rotate, which in turn drives the two sets of outer cylinders 22 to rotate around the frame 24 (the two sets of outer cylinders 22 are fixedly connected by a smooth rod 223). At the same time, the two sets of outer cylinders 22 are distributed on both sides of the sleeve 21 and rotate around the outer end of the sleeve 21. The sleeve 21 is fixedly connected to the heating box 11 through the feeding pipe 13, so the position of the sleeve 21 remains constant. At the same time, an inner cylinder 23 is rotatably connected between adjacent surfaces of the outer cylinder 22, which can be used for external diamond wire extrusion coating. Therefore, during the rotation of the outer cylinder 22, the inner cylinder 23 remains basically stationary, and consequently the positions of the wrapping ring 231 and the hollow shaft 221 remain basically stationary.

[0043] Next, the high-temperature pump 12 is started, and the mixture is introduced into the space enclosed by the sleeve 21 and the outer cylinder 22 through the feed pipe 13. Due to the rapid rotation of the outer cylinder 22, the smooth rod 223, the bent plate 224 and the scraper 225 are driven to rotate rapidly and synchronously, and the inflowing mixture is continuously and rapidly stirred, which can quickly and evenly stir the sinking diamond abrasive. Then, the pressure in the space enclosed by the sleeve 21 and the outer cylinder 22 continues to increase. The stirred mixture is pressurized and flows into the space enclosed by the inner cylinder 23 through the feed hole 233. The pressure inside the inner cylinder 23 continues to increase, and the mixture is pressed tightly against the diamond wire through physical extrusion, thus improving the uniformity of the abrasive on the wire. One end of the inner cylinder 23 is fixedly connected to a wrapping ring 231, which can fit against the outer circumference of the initial diamond wire (not yet coated) to prevent the mixture from overflowing. The other end of the inner cylinder 23 adopts an open design, and the excess mixture flows into the extrusion channel 251 through the open end of the inner cylinder 23.

[0044] This application employs a structure consisting of a sleeve 21, an outer cylinder 22, and an inner cylinder 23, which differs from conventional one-piece extrusion molds and has the following advantages:

[0045] Firstly, the rapid rotation of the outer cylinder 22 can perform secondary stirring of the mixture introduced by the feed pipe 13. By utilizing the rapid rotation of the smooth rod 223, the curved plate 224, and the scraper 225, the diamond abrasive that has settled in the mixture can be dispersed evenly again, thus avoiding the risk of damage to the busbar and busbar breakage when the diamond abrasive is pressed in through the feed hole 233.

[0046] Secondly, to avoid material accumulation at the outlet end of the feed pipe 13, this application utilizes the rapid rotation of the smooth rod 223 to quickly fill the space enclosed by the sleeve 21 and the outer cylinder 22, and allow the accumulated material to flow into the inner cylinder 23 through the feed hole 233.

[0047] Thirdly, during the rapid rotation of the outer cylinder 22, the mixture will flow synchronously. The flow resistance will cause the inner cylinder 23 to rotate slowly, resulting in a speed difference between the outer cylinder 22 and the inner cylinder 23. During the stirring process, the scraper 225 will slide along the inner wall of the annular groove 232, which can scrape off the diamond powder adhering near the feed hole 233 and prevent the feed hole 233 from being blocked.

[0048] The mixture is pressed tightly onto the diamond wire matrix by physical extrusion. After cooling and solidification, a diamond wire matrix with diamond abrasive is formed. Because the diamond wire matrix is ​​constantly moving, the coating time of the diamond wire matrix through the existing extrusion mold is relatively short. After solidification, the diamond abrasive is easy to fall off. In order to further improve the uniformity of the mixture and the coating time, this application also provides an extrusion tube 25, an extrusion channel 251, a return pipe 252 and a return plate 253.

[0049] Specifically, in the inner cylinder 23, the mixture is initially coated onto the surface of the diamond wire matrix under physical pressure. As the diamond wire matrix moves, the mixture, under pressure, flows synchronously into the extrusion channel 251. The central axis of the extrusion channel 251 is on the same axis as the diamond wire matrix, and the diameter of the extrusion channel 251 decreases from left to right. Thus, the mixture and the diamond wire matrix pass through the extrusion channel 251 synchronously. Under the traction force of the diamond wire matrix, the narrowing extrusion channel 251 will further press the mixture tightly against the diamond wire matrix (the diamond wire matrix moves in the center, the force on the diamond wire matrix is ​​uniform, and the coating uniformity is higher), and the coating time is greatly increased, preventing the diamond abrasive from falling off after solidification. Excess mixture flows into the heating box 11 through the return pipe 252 for recycling. A small portion flows out through the extrusion channel 251 and into the heating box 11 through the return hole 112.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for abrasive application using extrusion-coated tungsten wire diamond wire, characterized in that: Includes a material feeding section and a coating section located in the material feeding section; The feeding section includes a heating box, a high-temperature pump is installed at the bottom of the inner wall of the heating box, the output end of the high-temperature pump is fixedly connected to a feeding pipe, and the end of the feeding pipe away from the high-temperature pump extends out of the heating box; a frame is installed on the top of the heating box. The coating section includes a sleeve, the inside of which is fixedly connected to the feed pipe. An outer cylinder is rotatably connected to the outer end of the sleeve. Two outer cylinders are provided and symmetrically distributed with the sleeve as the center. The outer cylinders are rotatably connected to the frame. An inner cylinder is rotatably provided between the adjacent surfaces of the two outer cylinders. The outer end of the inner cylinder is fixedly connected to a wrapping ring that fits against the outer circumference of the external diamond wire busbar. The end of the inner cylinder away from the wrapping ring is designed as an open type. Several sets of annular grooves are opened on the outer circumference of the inner cylinder, and several sets of feed holes are opened on the inner wall of the multiple annular grooves.

2. The abrasive device for tungsten wire diamond wire with extrusion coating according to claim 1, characterized in that: The outer cylinder is rotatably connected to a hollow shaft at the end away from the wrapping ring, which is connected to the open end of the inner cylinder. A pulley is fixedly connected to the end of the outer cylinder away from the hollow shaft.

3. The abrasive device for tungsten wire diamond wire with extrusion coating according to claim 2, characterized in that: A drive unit is fixedly connected to the top of the heating box. The output end of the drive unit is connected to the pulley via a belt assembly. An overflow hole and a return hole are respectively opened on the top of the heating box.

4. The abrasive device for tungsten wire diamond wire with extrusion coating according to claim 3, characterized in that: The hollow shaft is rotatably sealed to the outer circumference of the extrusion tube. The end of the extrusion tube away from the hollow shaft is located directly above the return hole. The extrusion tube has an extrusion channel that is on the same axis as the external diamond wire busbar, and the diameter of the extrusion channel decreases from left to right.

5. The abrasive device for tungsten wire diamond wire with extrusion coating according to claim 4, characterized in that: A return pipe is fixedly connected to the outer circumference of the extrusion tube. The bottom end of the return pipe passes through the heating box and extends into the interior. A return plate is rotatably connected to the bottom end of the return pipe.

6. The abrasive device for tungsten wire diamond wire with extrusion coating according to claim 1, characterized in that: A smooth rod is fixedly connected to the inner wall of the outer cylinder, and a curved plate is fixedly connected to the outer circumference of the smooth rod. A scraper that fits against the inner wall of the annular groove is fixedly connected to the side of the curved plate away from the smooth rod.

Images