Pre-alloyed powder sintering device for photovoltaic glass edge grinding wheel

Abstract

The invention relates to a pre-alloyed powder sintering device for a photovoltaic glass edge grinding wheel, which is characterized in that an external barrel is fixedly mounted at the upper end of a bottom plate, a sintering barrel is coaxially arranged in the external barrel, and a plurality of groups of elastic supporting assemblies which are uniformly distributed around the axis of the external barrel and are fixedly connected with the bottom of the sintering barrel are arranged on the inner bottom surface of the external barrel; a sealing groove is integrally and coaxially formed in the upper end of the sintering barrel, a sealing gasket is coaxially and fixedly connected to the inner bottom face of the sealing groove, the sealing groove is filled with sealing oil, a lifting device is arranged at the upper end of the bottom plate and drives an end cover coaxially connected with an external barrel in an abutting mode, and a check ring is integrally and coaxially arranged on the end cover. A sealing pressing disc abutting against the sealing gasket is integrally and coaxially arranged on the check ring, the end cover is coaxially and fixedly connected with a sintering heat source corresponding to the sintering barrel, the upper end of the end cover is fixedly communicated with a vacuumizing device, and a pressure gauge is installed at the upper end of the end cover.

Description

Technical Field

[0001] The invention relates to the technical field of sintering devices, in particular to a pre-alloyed powder sintering device for a photovoltaic glass edge grinding wheel. Background Art

[0002] In order to ensure the factory quality of photovoltaic glass, it needs to be polished with an edge grinding wheel during its production process to remove burrs and flash. In order to ensure the service life of the edge grinding wheel, pre-alloyed powder is now generally used to sinter the edge grinding wheel. Pre-alloyed powder usually refers to a fully alloyed powder made by atomizing the melt. The powder is made by alloying two or more elements. It is used as the basic powder for diamond tools to improve the uneven mixing, poor alloying degree, poor stability and other properties of the original single powder during mixing, thereby ensuring the quality and service life of the produced edge grinding wheel.

[0003] At present, in the sintering process of pre-alloyed powder for edge grinding wheels, the opening of the sintering furnace and the cover plate are in planar contact, and the cover plate is placed flat on the opening of the sintering furnace, and its sealing degree is limited, which leads to heat overflow in the furnace during the sintering process, thereby causing heat loss and affecting the sintering efficiency. In this regard, the present application specifically proposes a pre-alloyed powder sintering device for photovoltaic glass edge grinding wheels, which is used to improve the above-mentioned problems and ensure production efficiency. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a pre-alloyed powder sintering device for photovoltaic glass edging wheels, and the technical solution to the problem is to include a bottom plate, characterized in that an external barrel is fixedly installed on the upper end of the bottom plate, a sintering barrel is coaxially arranged in the external barrel, a plurality of groups of elastic support components are arranged on the inner bottom surface of the external barrel, which are evenly distributed around the axis and fixedly connected to the bottom of the sintering barrel, a sealing groove is coaxially arranged on the upper end of the sintering barrel, a sealing gasket is coaxially fixedly connected to the inner bottom surface of the sealing groove, and the sealing groove is filled with sealing oil. A lifting device is arranged at the upper end of the bottom plate, and the lifting device drives an end cover coaxially abutting the external barrel, the end cover is coaxially arranged with a retaining ring, and the retaining ring is coaxially arranged with a sealing pressure plate abutting the sealing gasket, the end cover is coaxially fixedly connected with a sintering heat source corresponding to the sintering barrel, the upper end of the end cover is fixedly connected with a vacuum pumping device, and a pressure gauge is installed on the upper end of the end cover. The inner bottom surface of the sintering barrel is coaxially rotatably connected with a rotating shaft, and a sintering tray is coaxially arranged on the upper end of the rotating shaft, and a low-speed motor for driving the rotating shaft is fixedly connected to the bottom of the sintering barrel.

[0005] Preferably, each group of the elastic support components includes a vertical cylinder fixedly connected to the inner bottom surface of the external barrel, the vertical cylinder is coaxially slidably connected to a support rod, the lower end of the support rod is coaxially fixedly connected to the upper end of a support spring, the lower end of the support spring is coaxially fixedly connected to the inner bottom surface of the vertical cylinder, the upper end of the support rod is fixedly connected to a connecting plate, the connecting plate is fixedly connected to the sintering barrel, the vertical cylinder is provided with two vertical grooves symmetrically arranged about its axis, and the support rod is fixedly connected to two guide blocks corresponding to the vertical grooves one by one and vertically slidably connected.

[0006] Preferably, the lifting device includes two vertical rods fixedly connected to the bottom plate and arranged symmetrically about the external barrel, the upper ends of the two vertical rods are fixedly connected to a top plate, the top plate and the opposite ends of the bottom plate are rotatably connected with a lead screw, the upper end of the top plate is fixedly connected to a stepping motor for driving the lead screw, the lead screw is threadedly connected to a driving sleeve fixedly connected to the end cover, and each of the vertical rods is coaxially slidably connected to a sliding sleeve fixedly connected to the end cover.

[0007] Preferably, the vacuum device includes a connecting pipe fixedly connected to the end cover, a valve is installed on the connecting pipe, the upper end of the top plate is fixedly connected to a vacuum pump, the vacuum pump is fixedly connected to one end of a metal hose, and the other end of the metal hose is fixedly connected to the connecting pipe.

[0008] The beneficial effects of the present invention are: 1. When the present application is in use, an external barrel is coaxially arranged outside the sintering barrel. The external barrel cooperates with the end cover to seal the sintering barrel inside, thereby playing a role of heat preservation and safety protection during the sintering process. The lifting device provided can drive the end cover to rise and fall. When the end cover drops to the lowest position under the action of the lifting device, the outer edge of the end cover abuts against the upper edge of the external barrel to form an external seal, and when the end cover drops to the lowest position, it will also press the sealing gasket in the sealing groove through the sealing pressure plate, and will also press the sintering barrel to sink a corresponding distance along the elastic support component through the sealing gasket, and then ensure that the sealing pressure plate can be tightly pressed on the sealing gasket through the reaction force of the elastic component, thereby ensuring the sealing effect between the sintering barrel and the end cover, and the sealing oil in the sealing groove further ensures the sealing effect, thereby avoiding heat loss during the sintering process and ensuring the sintering efficiency.

[0009] 2. When sintering the pre-alloyed powder for the squaring wheel, the material to be sintered can be placed on the sintering tray, which can rotate at a low speed to ensure that the material is heated evenly. The vacuum device can form a suitable vacuum degree in the sintering barrel, thereby further ensuring the sintering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional cross-sectional view from the first viewing angle of the present invention.

[0011] Figure 2It is an enlarged view of area A in the stereoscopic cross-sectional view from the first viewing angle of the present invention.

[0012] Figure 3 It is an enlarged view of area B in the first viewing angle stereoscopic cross-sectional view of the present invention.

[0013] Figure 4 It is the front view of the present invention.

[0014] Figure 5 This is a stereoscopic view from a second viewing angle of the present invention.

[0015] Reference numerals 1. Bottom plate, 2. External barrel, 3. Sintering barrel, 4. Elastic support assembly, 5. Sealing groove, 6. Sealing gasket, 7. Sealing oil, 8. End cover, 9. Retaining ring, 10. Sealing pressure plate, 11. Sintering heat source, 12. Pressure gauge, 13. Rotating shaft, 14. Sintering tray, 15. Low-speed motor, 16. Vertical cylinder, 17. Support rod, 18. Support spring, 19. Connecting plate, 20. Vertical groove, 21. Guide block, 22. Vertical rod, 23. Top plate, 24. Screw, 25. Stepping motor, 26. Drive sleeve, 27. Sliding sleeve, 28. Connecting pipe, 29. Valve, 30. Vacuum pump, 31. Metal hose. DETAILED DESCRIPTION

[0016] Embodiment 1, the technical solution is that when the present application is in use, the external barrel 2 fixedly connected to the bottom plate 1 is coaxially arranged outside the sintering barrel 3, and the external barrel 2 cooperates with the end cover 8 to seal the sintering barrel 3 inside, thereby playing the role of heat preservation and safety protection during the sintering process. The provided lifting device can drive the end cover 8 to rise and fall, and when the end cover 8 is lowered to the lowest position by the lifting device, the outer edge of the end cover 8 abuts against the upper edge of the external barrel 2 to form an external seal, and when the end cover 8 is lowered to the lowest position, it will also press the sealing gasket 6 in the sealing groove 5 through the sealing pressure plate 10, and will also press the sintering barrel 3 to sink along the elastic support component 4 by the sealing gasket 6. Then, through the reaction force of the elastic component, it is ensured that the sealing pressure plate 10 can be tightly pressed on the sealing gasket 6, thereby ensuring the sealing effect between the sintering barrel 3 and the end cover 8, and the sealing oil 7 in the sealing groove 5 further ensures the sealing effect, thereby avoiding heat loss during the sintering process and ensuring the sintering efficiency. When sintering the edging wheel pre-alloyed powder, the material to be sintered can be placed on the sintering tray 14, and the sintering tray 14 can rotate at a low speed to ensure that the material is heated evenly. The vacuum device can form a suitable vacuum degree in the sintering barrel 3 to further ensure the sintering efficiency.

[0017] Embodiment 2, on the basis of embodiment 1, specifically, when the present application is in use, the stepper motor 25 on the top plate 23 is first started to reverse the set stroke. When the stepper motor 25 is started, the lead screw 24 of the lifting device is synchronously reversed by the corresponding stroke. The reversal of the lead screw 24 will drive the end cover 8 through the drive sleeve 26. The end cover 8 is restricted by the vertical sliding connection between the sliding sleeve 27 and the vertical rod 22. Then, the reversal of the lead screw 24 will drive the end cover 8 to move upward along the vertical rod 22 to the highest position. At this time, a certain amount of material to be sintered can be placed on the sintering tray 14. After placing the materials, start the stepper motor 25 to rotate forward to the set stroke, and the stepper motor 25 will drive the lead screw 24 to rotate forward synchronously to the corresponding stroke. The forward rotation of the lead screw 24 will drive the end cover 8 through the drive sleeve 26, and the end cover 8 is restricted by the vertical sliding connection between the sliding sleeve 27 and the vertical rod 22. Then the forward rotation of the lead screw 24 will drive the end cover 8 to move downward along the vertical rod 22 to the lowest position. At this time, the outer edge of the end cover 8 abuts against the upper edge of the external barrel 2 to form a seal, thereby enclosing the sintering barrel 3 inside to form a heat-insulating environment, and the external barrel 2 cover is arranged inside the sintering barrel 3 to form a protection to avoid accidental contact during the sintering process to cause burns and other problems.

[0018] During the process of the end cover 8 being driven to descend by the forward rotation of the lead screw 24 of the lifting device, the sealing pressure plate 10 at the bottom of the retaining ring 9 will first contact the sealing gasket 6 in the sealing groove 5, and then as the end cover 8 continues to descend, the sealing pressure plate 10 will gradually increase the pressure on the sealing gasket 6, and drive the sealing groove 5 together with the sintering barrel 3 to descend along the elastic support component 4 through the pressure. During the descent of the sintering barrel 3, the support rod 17 will be driven to descend along the vertical cylinder 16 through the connecting plate 19, and the support spring 18 will be compressed until the end cover 8 descends to the lowest position. At this time, the outer edge of the end cover 8 abuts against the upper edge of the external barrel 2 to form an external seal, and the sealing pressure plate 10 is also tightly pressed on the sealing gasket 6 in the sealing groove 5, and the reaction force of the support spring 18 in a compressed state will ensure the close contact between the sealing pressure plate 10 and the sealing gasket 6, and the liquid sealing effect of the sealing oil 7 can ensure the sealing of the sintering barrel 3. After sintering is completed, the lifting device is started to drive the end cover 8 to rise, and the material can be taken out. During the rise of the end cover 8, the sealing pressure plate 10 is released from the pressure on the sealing gasket 6, and then the support spring 18 loses a certain pressure and automatically extends the corresponding length, and drives the sintering barrel 3 to reset upward by a corresponding distance. When the sintered material is completely taken out, the support spring 18 will further extend and drive the sintering barrel 3 to completely reset. The vertical groove 20 on the vertical cylinder 16 is vertically slidably connected with the guide block 21 on the support rod 17, limiting the support rod 17 to only move vertically along the vertical cylinder 16.

[0019] Embodiment 3, on the basis of embodiment 2, during the sintering operation, the sintering heat source 11 can use an electric heater with appropriate power to ensure the sintering temperature, and the low-speed motor 15 should also be started during sintering, and the low-speed motor 15 will drive the sintering tray 14 to rotate synchronously through the rotating shaft 13, and then the material on the sintering tray 14 will also rotate accordingly, thereby ensuring the uniformity of heating and the sintering quality. In addition, during the sintering operation, the sintering barrel 3 can also be vacuumed through the vacuum pump 30, the metal hose 31 and the connecting pipe 28 on the top plate 23, so that a suitable vacuum degree is formed in the sintering barrel 3, thereby ensuring the sintering efficiency, and the valve 29 on the connecting pipe 28 can control the on and off of the vacuum device. A pressure gauge 12 is also arranged on the end cover 8, and the pressure in the sintering barrel 3 can be monitored during the sintering process.

Claims

1. A pre-alloyed powder sintering device for photovoltaic glass edge grinding wheels, comprising a bottom plate (1), characterized in that: An external barrel (2) is fixedly mounted on the upper end of the bottom plate (1), a sintering barrel (3) is coaxially arranged inside the external barrel, a plurality of elastic support components (4) are arranged on the inner bottom surface of the external barrel (2) and are evenly distributed around its axis and fixedly connected to the bottom of the sintering barrel (3), a sealing groove (5) is coaxially arranged on the upper end of the sintering barrel (3), a sealing gasket (6) is coaxially fixedly connected to the inner bottom surface of the sealing groove (5), and the sealing groove (5) is filled with sealing oil (7), a lifting device is arranged on the upper end of the bottom plate (1), and the lifting device drives an end cover (8) coaxially abutting against the external barrel (2), and the end cover (8) ) is coaxially arranged with a retaining ring (9), the retaining ring (9) is coaxially arranged with a sealing pressure plate (10) that abuts against the sealing gasket (6), the end cover (8) is coaxially fixedly connected with a sintering heat source (11) corresponding to the sintering barrel (3), the upper end of the end cover (8) is fixedly connected with a vacuum pumping device, the upper end of the end cover (8) is installed with a pressure gauge (12), the inner bottom surface of the sintering barrel (3) is coaxially rotatably connected with a rotating shaft (13), the upper end of the rotating shaft (13) is coaxially arranged with a sintering tray (14), and the bottom of the sintering barrel (3) is fixedly connected with a low-speed motor (15) for driving the rotating shaft (13).

2. The pre-alloyed powder sintering device for photovoltaic glass edge grinding wheel according to claim 1, characterized in that: Each group of the elastic support components (4) comprises a vertical cylinder (16) fixedly connected to the inner bottom surface of the external barrel (2); the vertical cylinder (16) is coaxially slidably connected to a support rod (17); the lower end of the support rod (17) is coaxially fixedly connected to the upper end of a support spring (18); the lower end of the support spring (18) is coaxially fixedly connected to the inner bottom surface of the vertical cylinder (16); the upper end of the support rod (17) is fixedly connected to a connecting plate (19); the connecting plate (19) is fixedly connected to the sintering barrel (3); the vertical cylinder (16) is provided with two vertical grooves (20) symmetrically arranged about its axis; the support rod (17) is fixedly connected to two guide blocks (21) corresponding one to one to the vertical grooves (20) and vertically slidably connected.

3. The pre-alloyed powder sintering device for photovoltaic glass edge grinding wheel according to claim 1, characterized in that: The lifting device comprises two vertical rods (22) fixedly connected to the bottom plate (1) and symmetrically arranged with respect to the external barrel (2); the upper ends of the two vertical rods (22) are fixedly connected to a top plate (23); the top plate (23) is rotatably connected to a lead screw (24) at an end opposite to the bottom plate (1); the upper end of the top plate (23) is fixedly connected to a stepping motor (25) for driving the lead screw (24); the lead screw (24) is threadedly connected to a driving sleeve (26) fixedly connected to an end cover (8); and each of the vertical rods (22) is coaxially slidably connected to a sliding sleeve (27) fixedly connected to the end cover (8).

4. The pre-alloyed powder sintering device for photovoltaic glass edge grinding wheel according to claim 3, characterized in that: The vacuum extraction device comprises a connecting pipe (28) fixedly connected to the end cover (8), a valve (29) being installed on the connecting pipe (28), a vacuum pump (30) being fixedly connected to the upper end of the top plate (23), the vacuum pump (30) being fixedly connected to one end of a metal hose (31), and the other end of the metal hose (31) being fixedly connected to the connecting pipe (28).

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