Edging rewinding machine

Abstract

The utility model provides an edging rewinder, including pay-off chamber, edging chamber and take-up chamber, the edging chamber is equipped with first spraying mechanism and second spraying mechanism, the first spraying mechanism is close to edging millstone of edging chamber and is used for spraying cutting fluid to diamond wire, the second spraying mechanism is arranged on the side of edging chamber and is used for spraying cutting fluid to diamond wire, and the second spraying mechanism is used for spraying cutting fluid to diamond wire. And the cleaning device is used for cleaning the edged diamond wire. The diamond wire edging device has the advantages that the wet edging process of a diamond wire is achieved, dust pollution is effectively reduced, the cleanliness of the diamond wire is improved, corrosion of the diamond wire is avoided, edging parameters can be adjusted in time by shooting the diamond wire before and after edging, the edging quality of the diamond wire is improved, and the working efficiency of the diamond wire is improved. Therefore, the cutting quality of the silicon wafer is guaranteed, and the production efficiency of the silicon wafer is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diamond wire edge-opening equipment, in particular to an edge-opening rewinding machine. Background Art

[0002] In the process of photovoltaic silicon wafer production, diamond wire is a main production auxiliary material for cutting silicon wafers. Diamond wire is a main production auxiliary material for cutting silicon wafers. Diamond wire uses electroplated metal as a binder, and through the electrocrystallization of electroplated metal, firmly consolidates high-hardness and high-abrasion-resistant diamond abrasive on the wire (or tungsten wire) substrate to form a cutting tool similar to a micro sawtooth. Since the newly produced diamond wire has a coating on its surface, and the sizes and densities of the bonded diamond abrasive particles are uneven, etc., it will affect the cutting quality of silicon wafers. Therefore, the diamond wire also needs to go through an edge-opening process before use, that is, through a cutting grindstone, remove the surface coating of the diamond abrasive, and make its particle size moderate and the density more uniform.

[0003] In the prior art, all edge-opening rewinding machines adopt the "dry edge-opening" process, that is, the diamond wire directly cuts and grinds with the grindstone. A large amount of dust is often generated during the edge-opening process, which not only pollutes the environment, but also fills the gaps between the diamond abrasives, seriously affecting the edge-opening quality of the diamond wire. The existing edge-opening rewinding machines do not have a detection system, and use the same parameters for edge-opening. The quality of the edge-opened diamond wire is uneven, affecting the cutting quality of silicon wafers, and even the phenomenon of replacing the spool occurs during the cutting of silicon wafers, which not only causes waste, but also affects production efficiency. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an edge-opening rewinding machine, which effectively solves the problems of generating a large amount of dust during the edge-opening process and being unable to monitor the edge-opening quality, and overcomes the deficiencies of the prior art.

[0005] The technical solution adopted by the utility model is: an edge-opening rewinding machine, including a wire pay-off chamber, an edge-opening chamber and a wire take-up chamber. A first spraying mechanism and a second spraying mechanism are arranged in the edge-opening chamber. The first spraying mechanism is arranged close to the edge-opening grindstone in the edge-opening chamber for spraying cutting fluid on the diamond wire, and the second spraying mechanism is arranged on the side of the edge-opening chamber for cleaning the diamond wire after edge-opening.

[0006] Further, both the first spraying mechanism and the second spraying mechanism include a guide shaft and a nozzle. The nozzle is arranged on the guide shaft, and the guide shaft is arranged on the back plate of the edge-opening chamber for adjusting the direction of the nozzle.

[0007] Further, an air drying device is arranged on one side of the edge-opening chamber close to the wire take-up chamber for drying the diamond wire.

[0008] Further, a drying box is provided at one end of the wire take-up chamber close to the edge-opening chamber, for drying the diamond wire before wire take-up.

[0009] Further, the drying box includes a drying through-channel and heating pipes. The drying through-channel is used for threading the diamond wire, and the heating pipes are arranged on the side of the drying through-channel.

[0010] Further, visual inspection mechanisms are provided in both the wire pay-off chamber and the wire take-up chamber, for photographing the diamond wire.

[0011] Further, the visual inspection mechanism includes a plurality of cameras, arranged circumferentially along the diamond wire.

[0012] Further, the visual inspection mechanism further includes a plurality of guide wheels, arranged along the transmission direction of the diamond wire.

[0013] Further, a light source is provided between the guide wheels.

[0014] Further, a first collection tank is provided at the bottom of the edge-opening chamber, for collecting the cutting fluid, and a second collection tank is provided below the second spraying mechanism, for collecting the cleaning fluid.

[0015] The advantages and positive effects of the present utility model are as follows: By adopting the above technical solution, a wet edge-opening process for diamond wire is realized, effectively reducing dust pollution, improving the cleanliness of the diamond wire, avoiding corrosion of the diamond wire, and adjusting the edge-opening parameters in a timely manner by photographing the diamond wire before and after edge-opening, improving the edge-opening quality of the diamond wire, thus ensuring the cutting quality of the silicon wafer and improving the production efficiency of the silicon wafer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an edge-opening and rewinding machine according to an embodiment of the present utility model.

[0017] Figure 2 is another schematic diagram of the overall structure of an edge-opening and rewinding machine according to an embodiment of the present utility model.

[0018] Figure 3 is a schematic diagram of the structure of the wire take-up chamber of an edge-opening and rewinding machine according to an embodiment of the present utility model.

[0019] Figure 4 is a schematic diagram of the structure of the edge-opening chamber of an edge-opening and rewinding machine according to an embodiment of the present utility model.

[0020] Figure 5 is another schematic diagram of the structure of the edge-opening chamber of an edge-opening and rewinding machine according to an embodiment of the present utility model.

[0021] Figure 6 is a schematic diagram of the structure of the first spraying mechanism of an edge-opening and rewinding machine according to an embodiment of the present utility model.

[0022] Figure 7 It is a schematic structural diagram of a drying box of a blade-opening rewinder according to an embodiment of the present utility model.

[0023] Figure 8 It is a schematic structural diagram of a vision detection mechanism of a blade-opening rewinder according to an embodiment of the present utility model.

[0024] In the figure:

[0025] 10. Welding machine frame 20. Pay-off chamber 30. Blade-opening chamber

[0026] 31. Blade-opening mechanism 311. Blade-opening grindstone 312. Driving module

[0027] 313. Guide roller 314. Steering guide wheel group 32. First spraying mechanism

[0028] 321. Guide shaft 322. Nozzle 323. Hose

[0029] 324. Switch ball valve 325. Snap ring 33. Second spraying mechanism

[0030] 34. First collecting tank 35. Second collecting tank 36. Groove

[0031] 361. Collection hole 37. Air-drying device 371. First air-drying device

[0032] 372. Second air-drying device 40. Take-up chamber 41. Pay-off / take-up mechanism

[0033] 42. Wire arranging mechanism 43. Tension control mechanism 44. Winding guide wheel group

[0034] 45. Drying box 451. Drying through groove 452. Heating pipe

[0035] 453. Heat-insulating box body 454. Heating element 455. Heat-insulating cover plate

[0036] 46. Vision detection mechanism 461. Camera 462. Fine-tuning platform

[0037] 463. Guide wheel 464. Light source 465. Through hole

[0038] 47. Display 50. Human-machine interface 60. Diamond wire Detailed implementation manners

[0039] The embodiment of the present utility model provides a blade-opening rewinder. The following makes an explanation of the embodiment of the present utility model with reference to the accompanying drawings.

[0040] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "top" and "bottom" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "arrangement" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0041] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, an edge-opening rewinder according to an embodiment of the present utility model includes a welding machine frame 10, and a wire feeding chamber 20, an edge-opening chamber 30, and a wire winding chamber 40 are provided on the welding machine frame 10. A suspended human-machine interface 50 is arranged on the welding machine frame 10 to facilitate the operator to adjust parameters. The wire feeding chamber 20 and the wire winding chamber 40 are symmetrically arranged on both sides of the edge-opening chamber 30, and their internal structures are the same. The wire feeding chamber 20 and the wire winding chamber 40 are both provided with a wire feeding / winding mechanism 41, a wire arranging mechanism 42, a tension control mechanism 43, and a wire winding guide wheel group 44. The edge-opening chamber 30 is provided with an edge-opening mechanism 31, and the edge-opening mechanism 31 includes an edge-opening grindstone 311, a driving module 312, a guiding roller 313, and a turning guide wheel group 314. The internal structures and connection methods of the wire feeding chamber 20 and the wire winding chamber 40 are prior art and will not be elaborated here.

[0042] As Figure 4 and Figure 5 ​As shown in the figure, a first spraying mechanism 32 and a second spraying mechanism 33 are provided in the edge-opening chamber 30. The first spraying mechanism 32 is arranged close to the edge-opening grindstone 311 and is used to spray cutting fluid onto the diamond wire 60. The second spraying mechanism 33 is used to clean the diamond wire 60 after edge-opening and is arranged on the side of the edge-opening chamber 30. While the edge-opening grindstone 311 is edge-opening the diamond wire 60, the first spraying mechanism 32 sprays cutting fluid onto the diamond wire 60, so that the dust generated by cutting is incorporated into the cutting fluid and is smoothly carried away from the cutting channel, reducing dust pollution. At the same time, the liquid molecules of the cutting fluid can effectively fill the gaps between the diamond abrasive particles, which can play a role in cooling, protecting the diamond wire matrix, and lubricating the edge-opening process. The second spraying mechanism 33 sprays pure water to clean the diamond wire 60 after edge-opening to maintain the cleanliness of the diamond wire 60. The specific number of the first spraying mechanisms 32 is not limited. They can be symmetrically arranged on both sides of the edge-opening grindstone 311 or on one side of the edge-opening grindstone 311, as long as it is ensured that the cutting fluid can be sprayed on the contact position between the diamond wire 60 and the edge-opening grindstone 311. Since the diamond wire 60 enters the wire-receiving chamber 40 from the lower guiding roller 313 after edge-opening, the second spraying mechanism 33 is arranged close to the lower guiding roller 313 and can be arranged on both sides of the lower guiding roller 313 or on one side close to the wire-receiving chamber 40, so that pure water can be sprayed on the diamond wire 60 to ensure that the diamond wire 60 is cleaned before entering the wire-receiving chamber 40.

[0043] Specifically, as Figure 6 shown in the figure, the first spraying mechanism 32 and the second spraying mechanism 33 have the same structure and both include a guiding shaft 321 and a nozzle 322. The nozzle 322 is arranged on the guiding shaft 321. The guiding shaft 321 is arranged on the back plate of the edge-opening chamber 30 and is used to adjust the direction of the nozzle 322. The guiding shaft 321 of the first spraying mechanism 32 drives the nozzle 322 of the first spraying mechanism 32 to incline towards the contact position between the diamond wire 60 and the edge-opening grindstone 311. In order to minimize the mixing of the cutting fluid and the cleaning fluid and make the cutting fluid easier to recycle, the guiding shaft 321 of the second spraying mechanism 33 makes the nozzle 322 of the second spraying mechanism 33 vertically placed or inclined away from the edge-opening grindstone 311. In this embodiment, the nozzle 322 is connected to the cutting fluid or clean water through a hose 323, and a switch ball valve 324 is provided on the hose 323. The guiding shaft 321 is perpendicular to the back plate of the edge-opening chamber 30. One end is detachably connected to the back plate by a snap ring 325, and the other end is detachably connected to the nozzle 322 by a snap ring 325. Loosening the snap ring 325 can adjust the direction and position of the nozzle 322.

[0044] Preferably, as Figure 4 and Figure 5As shown, a first collection tank 34 is provided at the bottom of the edge-grinding chamber 30 for collecting cutting fluid, and a second collection tank 35 is provided below the second spraying mechanism 33 for collecting cleaning fluid. In this embodiment, a groove 36 is provided at the bottom of the edge-grinding chamber 30, and a collection hole 361 is formed at the bottom of the groove 36. The first collection tank 34 is fixed below the groove 36. The cutting fluid flows through the collection hole 361 into the first collection tank 34 for recycling. To prevent the cleaning fluid from mixing into the cutting fluid, the second collection tank 35 is fixed below the second spraying mechanism 33, specifically a square tank with an open top, and the second collection tank 35 is fixed to the back plate of the edge-grinding chamber 30. The cleaning fluid can be collected in the second collection tank 35 and discharged through a pipeline.

[0045] Preferably, as Figure 5 shown, a drying device 37 is provided on one side of the edge-grinding chamber 30 close to the wire-receiving chamber 40 for drying the diamond wire 60. After the diamond wire 60 is edge-ground and cleaned, it needs to be dried. The drying device 37 includes a first drying device 371 and a second drying device 372. After the diamond wire 60 is edge-ground, it leaves the guide roller 313 and first passes through the first drying device 371 for drying. After bypassing the turning guide wheel group 314 close to the wire-receiving chamber 40, it then passes through the second drying device 372 for secondary drying. In this embodiment, the first drying device 371 is specifically a water blower. Since the diamond wire 60 is in an inclined state before entering the turning guide wheel group 314, it is easier to blow off the water droplets with a water blower. The second drying device 372 is specifically an annular air knife. The water blower and the annular air knife are prior arts and will not be elaborated here.

[0046] Preferably, as Figure 3 shown, to further ensure the drying of the diamond wire 60, a drying box 45 is provided at one end of the wire-receiving chamber 40 close to the edge-grinding chamber 30 for drying the diamond wire 60 before wire receiving. The drying device 37 can remove most of the water stains on the surface of the diamond wire 60. By providing the drying box 45, the diamond wire 60 can be further dried to prevent the diamond wire 60 from rusting.

[0047] Specifically, as Figure 7As shown in the figure, the drying box 45 includes a drying through groove 451 and a heating tube 452. The drying through groove 451 is used for threading the diamond wire 60, and the heating tube 452 is arranged on the side of the drying through groove 451. In this embodiment, the drying box 45 includes a heat-insulating box body 453. A drying through groove 451 is formed in the middle of the heat-insulating box body 453. Heating elements 454 are symmetrically fixed on both sides of the drying through groove 451. The heating elements 454 are arranged along the drying through groove 451, and heating tubes 452 are installed in the heating elements 454. The heating tubes 452 heat the heating elements 454, and the heating elements 454 dissipate heat to dry the diamond wire 60. A heat-insulating cover plate 455 that can be opened and closed is installed on the top of the heat-insulating box body 453 by hinges. The drying box 45 is installed on the back plate of the wire winding chamber 40 by an installation bracket.

[0048] Preferably, as Figure 3 shown in the figure, vision detection mechanisms 46 are provided in both the wire pay-off chamber 20 and the wire winding chamber 40 for photographing the diamond wire 60. Parameters such as the wire diameter of the diamond wire 60 before and after edge opening, the size of diamond abrasive particles, and the particle density are collected by the vision detection mechanism 46. The edge opening feed parameters can be adjusted in real time according to the changes in specific values. Monitors 47 can also be provided on the tops of the wire pay-off chamber 20 and the wire winding chamber 40 for displaying the images and related parameters photographed by the vision detection mechanism 46. The vision detection mechanism 46 is arranged between the tension control mechanism 43 and the wire winding guide wheel set 44.

[0049] Specifically, as Figure 8 shown in the figure, the vision detection mechanism 46 includes a plurality of cameras 461 arranged along the circumferential direction of the diamond wire 60, which is convenient for photographing images of the diamond wire 60 from various angles. In this embodiment, the vision detection mechanism 46 includes three cameras 461 evenly distributed at intervals of 120° along the circumferential direction of the diamond wire 60. The cameras 461 are fixed on the installation bracket through fine adjustment platforms 462. The fine adjustment platforms 462 can adjust the positions of the cameras 461. Through holes 465 are formed in the installation bracket to facilitate the installation and photographing of the cameras 461 located at the lower part of the installation bracket. The fine adjustment platform 462 is a prior art, and its specific structure will not be elaborated here.

[0050] Specifically, the vision detection mechanism 46 further includes a plurality of guide wheels 463 arranged along the transmission direction of the diamond wire 60. In this embodiment, in order to make the diamond wire 60 transmit smoothly and facilitate image acquisition by the cameras 461, two guide wheels 463 are installed along the transmission direction of the diamond wire 60. The two guide wheels 463 are respectively fixed on the wire inlet side and the wire outlet side of the vision detection mechanism 46, so that the diamond wire 60 can transmit smoothly in the vision detection mechanism 46.

[0051] Preferably, in order to make the shooting clearer, a light source 464 is provided between the guide wheels 463. In this embodiment, the light source 464 is an annular light source, fixed between the two guide wheels 463, and the diamond wire 60 passes through the annular light source 464.

[0052] Working process:

[0053] According to the specification model of the diamond wire 60 to be edge - opened, set the corresponding edge - opening parameters;

[0054] Install the wire pay - off spool and the wire take - up spool on the pay - off / take - up mechanism 41 in the pay - off chamber 20 and the take - up chamber 40 respectively;

[0055] Wind the diamond wire 60 around the pay - off chamber 20, the edge - opening chamber 30 and the take - up chamber 40 in sequence;

[0056] Adjust the drive module 312 of the edge - opening chamber 30 to move the edge - opening grindstone 311 to a suitable position, make the edge - opening grindstone 311 contact with the diamond wire 60, adjust the position and direction of the nozzles 322 of the first spraying mechanism 32 and the second spraying mechanism 33, so that the nozzles 322 are aligned with the diamond wire 60, then the edge - opening can be carried out;

[0057] During the edge - opening process, the first spraying mechanism 32 automatically sprays cutting fluid at the contact position between the edge - opening grindstone 311 and the diamond wire 60, and the second spraying mechanism 33 sprays pure water to wash the edge - opened diamond wire 60;

[0058] During the edge - opening process, the visual inspection mechanism 46 in the pay - off chamber 20 and the take - up chamber 40 collects parameters such as the wire diameter, the size of diamond abrasive particles, and the particle density of the diamond wire 60 before and after edge - opening. The operator can adjust the edge - opening feed parameters in real time according to the specific numerical changes;

[0059] After being washed, the diamond wire 60 passes through the first air - drying device 371 and the second air - drying device 372 to remove most of the water stains on the surface, and then enters the drying oven 45 to completely dry the diamond wire 60 to prevent the diamond wire 60 from rusting.

[0060] The advantages and positive effects of the present utility model are:

[0061] 1. By setting the first spraying device to spray cutting fluid, the wet edge - opening process of the diamond wire is realized, so that the dust generated by cutting is incorporated into the cutting fluid and is smoothly carried away from the cutting channel, reducing dust pollution. At the same time, the liquid molecules of the cutting fluid can effectively fill the gaps between the diamond abrasive particles, which can play the role of cooling, protecting the diamond wire matrix, and lubricating the edge - opening process, improving the edge - opening quality.

[0062] 2. By setting the second spraying device to wash the edge - opened diamond wire, the cleanliness of the diamond wire is ensured.

[0063] 3. By setting up an air-drying device and a drying oven, the diamond wire is completely dried to prevent it from rusting.

[0064] 4. By setting up a visual inspection mechanism, parameters such as the wire diameter before and after the diamond wire is edge-opened, the size of diamond abrasive grains, and the grain density are collected. According to the changes in specific values, the edge-opening feed parameters can be adjusted in real time, further improving the edge-opening quality, thus ensuring the cutting quality of the silicon wafer.

[0065] 5. By setting up a first collection tank and a second collection tank, the cutting fluid and the cleaning fluid are separated and collected, which is more conducive to the recycling and reuse of the cutting fluid.

[0066] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A cutting and rewinding machine, comprising a wire-releasing chamber, a cutting chamber and a wire-receiving chamber, characterized in that: A first spray mechanism and a second spray mechanism are provided in the sharpening chamber. The first spray mechanism is arranged close to the sharpening grindstone of the sharpening chamber and is used to spray cutting fluid to the diamond wire. The second spray mechanism is arranged on the side of the sharpening chamber and is used to clean the diamond wire after sharpening.

2. The blade opening and rewinding machine according to claim 1, characterized in that: The first spray mechanism and the second spray mechanism both include a guide shaft and a nozzle. The nozzle is arranged on the guide shaft. The guide shaft is arranged on the back plate of the blade sharpening chamber and is used to adjust the direction of the nozzle.

3. A blade opening and rewinding machine according to claim 1 or 2, characterized in that: A wind drying device is provided on one side of the blade sharpening chamber close to the wire taking-up chamber for drying the diamond wire.

4. The blade opening and rewinding machine according to claim 3, characterized in that: A drying box is provided at one end of the wire-receiving chamber close to the blade-sharpening chamber, which is used to dry the diamond wire before the wire is reeled in.

5. The blade opening and rewinding machine according to claim 4, characterized in that: The drying box comprises a drying slot and a heating pipe, wherein the drying slot is used for passing the diamond wire, and the heating pipe is arranged on the side of the drying slot.

6. A blade opening and rewinding machine according to any one of claims 1-2 and 4-5, characterized in that: The wire-releasing chamber and the wire-receiving chamber are both provided with visual detection mechanisms for photographing the diamond wire.

7. The blade opening and rewinding machine according to claim 6, characterized in that: The visual inspection mechanism includes a plurality of cameras arranged along the circumference of the diamond wire.

8. The blade opening and rewinding machine according to claim 7, characterized in that: The visual inspection mechanism also includes a plurality of guide wheels arranged along the transmission direction of the diamond wire.

9. The blade opening and rewinding machine according to claim 8, characterized in that: A light source is arranged between the guide wheels.

10. A blade sharpening and rewinding machine according to any one of claims 1-2, 4-5 and 7-9, characterized in that: A first collecting trough is provided at the bottom of the cutting chamber for collecting the cutting fluid, and a second collecting trough is provided below the second spraying mechanism for collecting cleaning fluid.

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