A tubular rotating alloy target vacuum melting and casting mold

Abstract

The present invention discloses a vacuum melting and casting mold for a tubular rotating alloy target, which relates to the technical field of vacuum melting furnaces. The mold includes a base, a rotating table, and a graphite cylinder. The upper surface of the base is provided with a rotating table, and the upper surface of the rotating table is fixedly connected with a graphite cylinder. It also includes a rotating structure, a telescopic structure, a feeding structure, and a discharging structure. The upper surface of the rotating table is fixedly connected with a mandrel assembly. The rotating structure is arranged in the base and is used to drive the graphite cylinder to rotate for casting. The telescopic structure is arranged in the mandrel assembly and is used to control the controllable shrinkage of the casting material during cooling. The feeding structure is arranged on the upper surface of the mandrel assembly and is used to facilitate the pouring of the casting material. The discharging structure is arranged in the rotating table and is used for rapid demolding. Through the discharging structure of the present invention, it is more convenient to take out the formed material, and the discharging is more rapid and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum melting furnaces, and specifically to a tubular rotating alloy target vacuum melting and casting mold. Background Art

[0002] Since the utilization rate of the alloy flat target used in solar energy, semiconductors, and glass coating is less than 30% of the drawstring, while the utilization rate of the tubular rotating alloy target exceeds 70%, it is a trend to change the flat target into a tubular rotating alloy target. In the original method, there are two casting methods for the tubular rotating alloy target with a large elongation rate. One is to cast it into a solid cylinder and then machine to remove the central part. The wall thickness of the tubular rotating alloy target generally does not exceed 15 mm, so the material utilization rate is very low, resulting in serious waste and high costs. The other is to use a solid graphite cylinder and a graphite cylinder to form a cavity for casting in the middle. When the existing rotating alloy target vacuum melting and casting mold is demolded, it is necessary to use external tools to take out the cast material. During the taking-out process, since the material adheres tightly to the inner wall of the mold, the demolding is relatively difficult.

[0003] Based on this, a tubular rotating alloy target vacuum melting and casting mold is now provided, which can eliminate the drawbacks of the existing device. Summary of the Invention

[0004] The purpose of the present invention is to provide a tubular rotating alloy target vacuum melting and casting mold to solve the problem of difficult demolding of the existing tubular rotating alloy target vacuum melting and casting mold in the background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A tubular rotating alloy target vacuum melting and casting mold includes a base, a rotating table, and a graphite cylinder. The upper surface of the base is provided with a rotating table, and the upper surface of the rotating table is fixedly connected with a graphite cylinder. It also includes a rotating structure, a telescopic structure, a feeding structure, and a discharging structure. The upper surface of the rotating table is fixedly connected with a mandrel assembly. The rotating structure is arranged in the base and is used to drive the graphite cylinder to rotate for casting. The telescopic structure is arranged in the mandrel assembly and is used to control the controllable shrinkage of the casting material during cooling. The feeding structure is arranged on the upper surface of the mandrel assembly and is used to facilitate the pouring of the casting material. The discharging structure is arranged in the rotating table and is used for rapid demolding.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: The rotating structure includes iron sheets. The upper surface of the base is provided with a motor slot, and the inner side wall of the motor slot is fixedly connected with a motor. The output end of the motor is fixedly connected with the rotating table.

[0009] In an alternative solution: the telescopic structure includes a graphite inner core, a sleeve, and a buffer block. Four graphite inner cores are slidably connected to the inner side wall of the graphite cylinder. A plurality of sleeve grooves are provided on the side wall of the mandrel assembly, and sleeves are fixedly connected to the inner side walls of the plurality of sleeve grooves. A buffer block is slidably connected to the inner side wall of the sleeve, and a damping spring is fixedly connected between the buffer block and the inner side wall of the mandrel assembly. A groove is provided on the side wall of the graphite inner core close to the buffer block, and the buffer block is snap-fitted with the groove.

[0010] In an alternative solution: iron sheets are provided on the inner side wall of the groove of the graphite inner core.

[0011] In an alternative solution: a U-shaped copper sheet is provided between two adjacent graphite inner cores.

[0012] In an alternative solution: the feeding structure includes a funnel and a funnel ring. The funnel ring is rotatably connected to the upper surface of the mandrel assembly through a bearing. The funnel ring is fixedly connected with a funnel in a penetrating manner, and the funnel extends through and into the graphite cylinder. Asbestos papers are fixedly connected to the opposite side walls of the graphite inner core and the graphite cylinder.

[0013] In an alternative solution: the discharging structure includes a pressing block, a squeezing block, a first top block, and a second top block. A squeezing block groove is provided in the rotating table, and a squeezing block is slidably connected to the inner side wall of the squeezing block groove. A pressing block groove is provided on the upper surface of the rotating table, and a pressing block is slidably connected to the inner side wall of the pressing block groove. The pressing block is provided with an inclined surface, and the squeezing block is provided with three inclined surfaces. The inclined surface of the pressing block abuts against one of the inclined surfaces of the squeezing block. The first top block and the second top block are slidably connected to the upper surface of the squeezing block, and the first top block and the second top block respectively abut against the other two inclined surfaces of the squeezing block. The first top block and the second top block both extend through and into the graphite cylinder.

[0014] In an alternative solution: a slider groove is provided on the bottom wall of the squeezing block groove, a slider is fixedly connected to the lower surface of the squeezing block, the slider is slidably connected to the inner side wall of the slider groove, and a damping spring is fixedly connected between the slider and the inner side wall of the slider groove.

[0015] In an alternative solution: a protrusion is provided on the side wall of the pressing block, and the protrusion is slidably connected to the inner side wall of the pressing block groove.

[0016] In an alternative solution: a temperature sensor is provided on the outer side wall of the graphite cylinder.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In the present invention, by pressing the pressing block, the pressing block drives the extrusion block to move leftward, and the first top block and the second top block move upward along the inclined surface of the extrusion block, pushing the mold out between the graphite cylinder and the graphite inner core, facilitating the removal of the molding material and making the unloading faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a first perspective view of the present invention.

[0021] Figure 3 It is a second perspective view of the present invention.

[0022] Figure 4 It is a schematic internal structure diagram of the present invention.

[0023] Figure 5 It is a schematic internal structure diagram of the base of the present invention.

[0024] Figure 6 It is a top view of the internal structure of the graphite cylinder of the present invention.

[0025] Figure 7 For the present invention Figure 4 Enlarged view at A.

[0026] Annotation of reference numerals in the drawings: 1 Base, 2 Rotating table, 3 Graphite cylinder, 4 Funnel, 5 Funnel ring, 6 Mandrel assembly, 7 Graphite inner core, 8 Asbestos paper, 9 U-shaped copper sheet, 10 Temperature sensor, 11 Iron sheet, 12 Sleeve, 13 Buffer block, 14 Motor, 15 Pressing block, 16 Extrusion block, 17 First top block, 18 Second top block, 19 Slide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In one embodiment, as Figures 1-7 shown, a tubular rotating alloy target vacuum melting and casting mold includes a base 1, a rotating table 2, and a graphite cylinder 3. A rotating table 2 is provided on the upper surface of the base 1, and a graphite cylinder 3 is fixedly connected to the upper surface of the rotating table 2. It further includes a rotating structure, a telescopic structure, a feeding structure, and a discharging structure. A mandrel assembly 6 is fixedly connected to the upper surface of the rotating table 2. The rotating structure is provided inside the base 1 and is used to drive the graphite cylinder 3 to perform rotational casting. The telescopic structure is provided inside the mandrel assembly 6 and is used to control the controllable shrinkage of the casting material during cooling. The feeding structure is provided on the upper surface of the mandrel assembly 6 and is used to facilitate the pouring of the casting material. The discharging structure is provided inside the rotating table 2 and is used for rapid demolding.

[0029] In one embodiment, asFigure 4 As shown, the rotating structure includes an iron sheet 11. A motor slot is provided on the upper surface of the base 1, and a motor 14 is fixedly connected to the inner side wall of the motor slot. The output end of the motor 14 is fixedly connected to the rotating table 2. Starting the motor 14 enables the rotating table 2 to rotate freely at a low speed driven by the motor 14, while the funnel 4 of the casting port remains stationary. The casting material is poured from the funnel 4 into the cavity formed by the telescopic graphite cylinder 3 and the graphite inner core 7. The casting material is evenly distributed in the cavity under the free rotation of the mold, and the temperature is also evenly distributed, and the cooling speed is consistent during natural cooling.

[0030] In one embodiment, as Figure 4 and Figure 5 shown, the telescopic structure includes a graphite inner core 7, a sleeve 12, and a buffer block 13. Four graphite inner cores 7 are slidably connected to the inner side wall of the graphite cylinder 3. A number of sleeve slots are provided on the side wall of the mandrel assembly 6, and sleeves 12 are fixedly connected to the inner side walls of the number of sleeve slots. A buffer block 13 is slidably connected to the inner side wall of the sleeve 12, and a damping spring is fixedly connected between the buffer block 13 and the inner side wall of the mandrel assembly 6. A groove is provided on the side wall of the graphite inner core 7 close to the buffer block 13, and the buffer block 13 is snap-fitted with the groove. The graphite inner core 7 can freely expand and contract under the action of the damping spring and the buffer block 13, enabling the shrinkage of the casting material to be controllable during the cooling process, increasing the yield rate of the tubular rotating alloy target blank to more than 95%, and reducing the material loss rate from the original 80% to 10%. The cost is reduced, and the initial design requirement for small-batch production is also met.

[0031] In one embodiment, as Figure 6 shown, an iron sheet 11 is provided on the inner side wall of the groove of the graphite inner core 7.

[0032] In one embodiment, as Figure 6 shown, a U-shaped copper sheet 9 is provided between two adjacent graphite inner cores 7.

[0033] In one embodiment, as Figure 4 and Figure 5 shown, the feeding structure includes a funnel 4 and a funnel ring 5. The upper surface of the mandrel assembly 6 is rotatably connected to the funnel ring 5 through a bearing. The funnel ring 5 is fixedly connected with a funnel 4 passing through it, and the funnel 4 extends through to the inside of the graphite cylinder 3. Asbestos papers 8 are fixedly connected to the opposite side walls of the graphite inner core 7 and the graphite cylinder 3. The funnel 4 of the casting port remains stationary, and the casting material is poured from the funnel 4 into the cavity formed by the telescopic graphite cylinder 3 and the graphite inner core 7.

[0034] In one embodiment, as Figure 5As shown in the figure, the discharging structure includes a pressing block 15, a squeezing block 16, a first top block 17, and a second top block 18. A squeezing block groove is formed inside the rotating table 2. The inner side wall of the squeezing block groove is slidably connected to the squeezing block 16. A pressing block groove is formed on the upper surface of the rotating table 2. The inner side wall of the pressing block groove is slidably connected to the pressing block 15. The pressing block 15 is provided with an inclined surface, and the squeezing block 16 is provided with three inclined surfaces. One inclined surface of the pressing block 15 abuts against one inclined surface of the squeezing block 16. The upper surface of the squeezing block 16 is slidably connected to the first top block 17 and the second top block 18. The first top block 17 and the second top block 18 respectively abut against the other two inclined surfaces of the squeezing block 16. The first top block 17 and the second top block 18 both penetrate and extend into the graphite cylinder 3. Press the pressing block 15, the pressing block 15 drives the squeezing block 16 to move leftward, and the first top block 17 and the second top block 18 move upward along the inclined surfaces of the squeezing block 16, ejecting the mold between the graphite cylinder 3 and the graphite inner core 7, facilitating the removal of the formed material, and making the discharging more rapid and convenient.

[0035] In one embodiment, as Figure 4 and Figure 5 shown, a slider groove is formed on the bottom wall of the squeezing block groove. The lower surface of the squeezing block 16 is fixedly connected to a slider 19. The slider 19 is slidably connected to the inner side wall of the slider groove. A damping spring is fixedly connected between the slider 19 and the inner side wall of the slider groove. The damping spring drives the squeezing block 16 to reset.

[0036] In one embodiment, as Figure 4 and Figure 5 shown, a protrusion is provided on the side wall of the pressing block 15. The protrusion is slidably connected to the inner side wall of the pressing block groove. The pressing block 15 is limited.

[0037] In one embodiment, as Figure 6 shown, a temperature sensor 10 is provided on the outer side wall of the graphite cylinder 3. The temperature sensor 10 monitors the casting temperature inside the graphite cylinder 3 at all times.

[0038] The above embodiment discloses a tubular rotating alloy target vacuum melting and casting mold. First, pour the casting material into the graphite cylinder 3 from the funnel 4. Start the motor 14, so that the rotating table 2 can rotate freely at a low speed driven by the motor 14, while the funnel 4 of the casting port remains stationary. The casting material is poured into the cavity composed of the telescopic graphite cylinder 3 and the graphite inner core 7 from the funnel 4. The casting material is evenly distributed in the cavity under the free rotation of the mold, and the temperature is also evenly distributed. The cooling speed is the same during natural cooling, and the graphite inner core 7 can freely expand and contract under the action of the damping spring and the buffer block 13, enabling the shrinkage of the casting material to be controllable during the cooling process. The yield rate of the tubular rotating alloy target blank is increased to more than 95%, and the material loss rate is reduced from the original 80% to 10%. The cost is reduced, and the initial small-batch production requirement is also met.

[0039] When demoulding is required after casting is completed, press the pressing block 15. The pressing block 15 drives the extrusion block 16 to move leftward, and the first ejecting block 17 and the second ejecting block 18 move upward along the inclined surface of the extrusion block 16, pushing the mold out between the graphite cylinder 3 and the graphite inner core 7, facilitating the removal of the formed material and making the unloading more rapid and convenient.

[0040] The above is only a specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A tubular rotating alloy target vacuum melting and casting mold, comprising a base (1), a rotating table (2), and a graphite cylinder (3). The upper surface of the base (1) is provided with a rotating table (2), and the upper surface of the rotating table (2) is fixedly connected with a graphite cylinder (3). It is characterized in that it further comprises a rotating structure, a telescopic structure, a feeding structure, and a discharging structure. The upper surface of the rotating table (2) is fixedly connected with a mandrel assembly (6). The rotating structure is arranged inside the base (1) and is used to drive the graphite cylinder (3) to rotate for casting. The telescopic structure is arranged inside the mandrel assembly (6) and is used to control the controllable shrinkage when the casting material cools. The feeding structure is arranged on the upper surface of the mandrel assembly (6) and is used to facilitate the pouring of the casting material. The discharging structure is arranged inside the rotating table (2) and is used for rapid demolding; The rotating structure comprises an iron sheet (11). A motor slot is opened on the upper surface of the base (1), and the inner side wall of the motor slot is fixedly connected with a motor (14). The output end of the motor (14) is fixedly connected with the rotating table (2); The telescopic structure comprises a graphite inner core (7), a sleeve (12), and a buffer block (13). Four graphite inner cores (7) are slidably connected to the inner side wall of the graphite cylinder (3). A plurality of sleeve slots are opened on the side wall of the mandrel assembly (6), and the inner side walls of the plurality of sleeve slots are all fixedly connected with sleeves (12). A buffer block (13) is slidably connected to the inner side wall of the sleeve (12). A damping spring is fixedly connected between the buffer block (13) and the inner side wall of the mandrel assembly (6). A groove is opened on the side wall of the graphite inner core (7) close to the buffer block (13), and the buffer block (13) is clamped with the groove.

2. A tubular rotating alloy target vacuum melting and casting mold according to claim 1, It is characterized in that an iron sheet (11) is arranged on the inner side wall of the groove of the graphite inner core (7).

3. A tubular rotating alloy target vacuum melting and casting mold according to claim 1, It is characterized in that a U-shaped copper sheet (9) is arranged between two adjacent graphite inner cores (7).

4. A tubular rotating alloy target vacuum melting and casting mold according to claim 3, It is characterized in that the feeding structure comprises a funnel (4) and a funnel ring (5). The upper surface of the mandrel assembly (6) is rotatably connected with a funnel ring (5) through a bearing. The funnel ring (5) is fixedly connected with a funnel (4) in a penetrating manner. The funnel (4) penetrates and extends into the graphite cylinder (3). Asbestos papers (8) are fixedly connected to the opposite side walls of the graphite inner core (7) and the graphite cylinder (3).

5. A tubular rotating alloy target vacuum melting and casting mold according to claim 4, It is characterized in that The discharging structure includes a pressing block (15), an extrusion block (16), a first top block (17), and a second top block (18). An extrusion block groove is formed in the rotary table (2), and the inner side wall of the extrusion block groove is slidably connected to the extrusion block (16). A pressing block groove is formed on the upper surface of the rotary table (2), and the inner side wall of the pressing block groove is slidably connected to the pressing block (15). The pressing block (15) is provided with an inclined surface, and the extrusion block (16) is provided with three inclined surfaces. One inclined surface of the pressing block (15) abuts against one inclined surface of the extrusion block (16). The first top block (17) and the second top block (18) are slidably connected to the upper surface of the extrusion block (16), and the first top block (17) and the second top block (18) respectively abut against the other two inclined surfaces of the extrusion block (16). The first top block (17) and the second top block (18) both penetrate and extend into the graphite cylinder (3).

6. A tubular rotary alloy target vacuum melting and casting mold according to claim 5, characterized in that, a slider groove is formed in the bottom wall of the extrusion block groove, a slider (19) is fixedly connected to the lower surface of the extrusion block (16), the slider (19) is slidably connected to the inner side wall of the slider groove, and a damping spring is fixedly connected between the slider (19) and the inner side wall of the slider groove.

7. A tubular rotary alloy target vacuum melting and casting mold according to claim 5, characterized in that, a protrusion is provided on the side wall of the pressing block (15), and the protrusion is slidably connected to the inner side wall of the pressing block groove.

8. A tubular rotary alloy target vacuum melting and casting mold according to claim 6, characterized in that, a temperature sensor (10) is provided on the outer side wall of the graphite cylinder (3).

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