Vacuum carbon tube furnace crucible feeding device

Abstract

The invention relates to the technical field of crucible feeding, and discloses a vacuum carbon tube furnace crucible feeding device which comprises a rack, a crucible is placed on the top of the rack, and supporting rods are fixed to the two sides of the top of the rack; the lower portion of the feeding barrel is fixed to the surface of the supporting rod through a mounting panel, and an air cylinder is fixed to the outer side of the mounting panel; the discharging barrel is arranged outside the feeding barrel in a sleeving manner; clamping mechanisms are arranged on the two sides of the top of the machine frame, and a crucible is fixedly clamped in the charging process through clamping. A gear ring rotates to be meshed with a gear II, so that each fan-shaped panel is closed into a plane shape, then a handle located in a supporting rod is pulled out, then a controller drives an air cylinder to press downwards to flatten filled materials, thick-layer accumulation of powder is avoided, and the heating uniformity of the powder is guaranteed; all particles are ensured to be in a similar thermal environment, the heating efficiency is improved, and the product performance is prevented from being influenced by burst or bubble generation during thermal treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crucible feeding, in particular to a vacuum carbon tube furnace crucible feeding device. BACKGROUND

[0002] The vacuum carbon tube furnace is usually made of high-density graphite powder by high-temperature pressing and baking processes, and has the characteristics of high temperature resistance, long-term use temperature up to 1600-2200 DEG C, short time higher, good electrical conductivity, strong chemical stability, and not easy to react with most materials at high temperature.

[0003] During the production of the vacuum carbon tube furnace, graphite powder is first poured into the crucible, and then baked and heat treated. Since the existing crucible feeding equipment directly transports the crucible when it is full of powder, and then manually flattens the powder, the density of the powder layer is not uniform and the thickness is not the same due to the difference in operating force and coverage range of different personnel. If the pressing is too light, the powder layer is loose and the gap is large, which is easy to form bubbles or pores during heating. If the pressing is too heavy, the powder is compacted too much, which may cause poor air permeability and cause explosion phenomenon, ultimately affecting the performance of the product.

[0004] In view of this, the present application provides a vacuum carbon tube furnace crucible feeding device to solve the above technical problems. SUMMARY

[0005] In view of the deficiencies of the above background technology, the present application provides a technical solution of a vacuum carbon tube furnace crucible feeding device, which solves the problems raised in the above background technology.

[0006] The present application provides the following technical solution: a vacuum carbon tube furnace crucible feeding device, comprising a rack, a crucible is placed on the top of the rack, and support rods are fixed on both sides of the top of the rack;

[0007] A feeding cylinder is fixed to the surface of the support rod through a mounting panel below the feeding cylinder, and a gas cylinder is fixed to the outside of the mounting panel;

[0008] A discharging cylinder is provided outside the feeding cylinder;

[0009] Clamping mechanisms are provided on both sides of the top of the rack to fix and clamp the crucible during feeding, the clamping mechanism comprises two clamping blocks and a lead screw, the two clamping blocks are distributed in a staggered manner, one of the clamping blocks is fixed to the bottom of the support rod through a fixed rod, and the other clamping block is fixed to one side of the top of the rack through a fixed rod, a sliding rod I is sleeved on the top of the fixed rod in a sliding connection manner, a connecting rod I is provided at the end of the sliding rod I, and the connecting rod I is fixed to the top of the clamping block; a clamping adjusting assembly is provided in the clamping block;

[0010] The bottom of the blanking cylinder is provided with a flattening mechanism, which comprises a cover plate with dustproof effect, and the cover plate is installed on the bottom of the blanking cylinder.

[0011] As a preferred technical scheme of the present application, the end of the connecting rod I is fixed with a moving collar, the inside of the moving collar on both sides is sleeved with a lead screw, the end of the lead screw is rotationally connected with a fixed rod on the other side clamping block, and a gear I is arranged at the middle position of the lead screw.

[0012] As a preferred technical scheme of the present application, the other end of the lead screw is rotationally connected with a circular ring, the inside of the lead screw is slidably sleeved with a push rod, the driving end of the air cylinder is fixed with a fixed frame, the surface of the fixed frame is fixed with a toothed rod, the air cylinder drives the fixed frame to move vertically while the toothed rod meshes with the gear I to drive the lead screw to rotate, so that the two clamping blocks fix and clamp the crucible, and the inner wall of the gear I is provided with a clamping groove.

[0013] As a preferred technical scheme of the present application, the top of the cover plate is provided with a groove, a toothed ring is rotationally connected in the groove, a plurality of circumferentially distributed sector-shaped panels are rotationally connected in the inside of the cover plate, the outer wall of the sector-shaped panel is fixed with a gear II, and the gear II meshes with the bottom of the toothed ring.

[0014] As a preferred technical scheme of the present application, the top of the toothed ring is meshed with a worm, the lower surface of the blanking cylinder is fixed with a fixed block, the worm is rotationally installed on the surface of the fixed block, the end of the worm is fixed with a fixed rod, the outside of the fixed rod is sleeved with a handle, and the handle is located on the side of the supporting rod.

[0015] As a preferred technical scheme of the present application, the inside of the supporting rod is penetrated by a slidingly arranged moving rod, the end of the moving rod is fixed with a push plate, the push plate is located on the inside of the supporting rod, one end of the lead screw is rotationally connected with a circular ring, and the surface of the push rod is sleeved with a spring.

[0016] As a preferred technical scheme of the present application, the end of the push rod is fixed with a connecting frame, a rotating wheel is rotationally connected to the inside wall of the connecting frame, the spring is located between the connecting frame and the circular ring, and the end of the moving rod penetrates the connecting frame and contacts the rotating wheel.

[0017] As a preferred technical scheme of the present application, the inside of the fixed ring is fixed with a rotating wheel through the spring, the outer wall of the rotating wheel is fixed with a protruding block, the push rod penetrates the fixed ring and contacts the protruding block to spread the rotating wheel to the clamping groove in the inner wall of the gear I.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1, the gear ring rotates and engages with gear II, so that each sector panel is closed into a flat shape, then the handle inside the support rod is pulled out, then the controller drives the cylinder to press down and press the filled material, avoid the powder to form thick layer accumulation, ensure the uniformity of the heated powder, ensure that all particles are in similar thermal environment to improve the heating efficiency, avoid the explosion or bubble during heat treatment to affect the product performance.

[0020] 2, gear I rotates alone, does not drive the screw rod to rotate, when the blanking cylinder is lowered to the appropriate height, then the handle is moved to the inside of the support rod to extrude the push plate, so that the moving rod pushes the push rod to open the rotating wheel to lock the clamping state, the setting of this structure can make the blanking cylinder freely descend, can be freely adjusted according to the loading demand and does not affect the stability of the crucible clamping. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural diagram of the present application;

[0022] Figure 2 is a right view of the present application;

[0023] Figure 3 is a partial structural diagram of the present application;

[0024] Figure 4 is a partial structural diagram of the present application; Figure 3

[0025] Figure 5 is a structural diagram of the screw rod in the present application; Figure 4

[0026] Figure 6 is an internal structural diagram of the screw rod in the present application. Figure 5

[0027] In the figure: 1, rack; 2, support rod; 3, blanking cylinder; 301, fixed block; 4, feeding cylinder; 5, screw rod; 502, connecting rod I; 503, protruding block; 504, push plate; 505, gear I; 506, moving collar; 507, moving rod; 508, spring; 509, connecting frame; 510, push rod; 511, rotating wheel; 512, fixed ring; 513, circular ring; 6, worm; 601, fixed rod; 602, handle; 7, clamping block; 701, sliding rod I; 8, cover plate; 801, gear ring; 802, sector panel; 803, gear II; 9, sliding rod II; 10, mounting panel; 12, fixed frame; 121, toothed rod. DETAILED DESCRIPTION

[0028] ​​​Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0029] Embodiment one,

[0030] Please refer to Figures 1-4 As shown in the figure, a vacuum carbon tube furnace crucible feeding device, including a rack 1, the rack 1 top placed crucible, the rack 1 top two sides are fixed with support rod 2;

[0031] Feeding cylinder 4, the lower part of feeding cylinder 4 is fixed on the surface of support rod 2 through mounting panel 10, the outer side of mounting panel 10 is fixed with air cylinder;

[0032] Discharging cylinder 3, the discharging cylinder 3 is sleeved on the outside of feeding cylinder 4; the top of rack 1 is provided with clamping mechanism, the clamping mechanism is fixed and clamped on the top of rack 1, the clamping mechanism includes two clamping blocks 7 and lead screw 5, the two clamping blocks 7 are distributed in staggered position, one of the clamping blocks 7 is fixed on the bottom of support rod 2 through fixed rod, the other clamping block 7 is fixed on the top of rack 1 through fixed rod, the top of fixed rod is sleeved with sliding connection sliding rod 1701, the end of sliding rod 1701 is provided with connecting rod 1502, the connecting rod 1502 is fixed on the top of clamping block 7; the inside of clamping block 7 is provided with clamping adjusting assembly;

[0033] The bottom of discharging cylinder 3 is provided with flattening mechanism, the flattening mechanism includes cover plate 8 with dustproof effect, the cover plate 8 is installed on the bottom of discharging cylinder 3.

[0034] The end of connecting rod 1502 is fixed with moving sleeve ring 506, the inside of two moving sleeve rings 506 is sleeved with lead screw 5, the end of lead screw 5 is rotatably connected with fixed rod on the other clamping block 7, the middle position of lead screw 5 is provided with gear 1505; the other end of lead screw 5 is rotatably connected with circular ring 513, the inside of lead screw 5 is slidably sleeved with push rod 510, the driving end of air cylinder is fixed with fixed frame 12, the surface of fixed frame 12 is fixed with toothed rod 121, the air cylinder drives fixed frame 12 to move vertically with discharging cylinder 3, at the same time, toothed rod 121 meshes with gear 1505 to drive lead screw 5 to rotate, so that the two clamping blocks 7 fix and clamp the crucible, the inner wall of gear 1505 is provided with clamping groove.

[0035] As a specific embodiment of the present application, the material is poured into the feeding cylinder 4, then the crucible is placed on the top of the frame 1 and the discharge port of the discharging cylinder 3 is aligned, then the fixed frame 12 and 13 are driven to descend by the air cylinder, so that the cover plate 8 covers the top of the crucible, avoiding a large amount of dust when the powder is poured into, and the discharging cylinder 3 is meshed with the gear I 505 by the gear rod 121 when it is lowered, driving the lead screw 5 to rotate, moving the sleeve ring 506 on the surface of the lead screw 5, and pushing the clamping blocks 7 on both sides to gradually approach the direction of the crucible to clamp it;

[0036] In example two, on the basis of example one,

[0037] Please refer to Figures 4-6 As shown in the figure, the top of the cover plate 8 is provided with a groove, and a gear ring 801 is rotatably connected in the groove. A plurality of circumferentially distributed sector panels 802 are rotatably connected inside the cover plate 8, and a gear II 803 is fixed to the outer wall of the sector panel 802. The gear II 803 is engaged with the bottom of the gear ring 801. The top of the gear ring 801 is engaged with the worm 6. The lower surface of the discharging cylinder 3 is fixed with a fixed block 301. The worm 6 is rotatably installed on the surface of the fixed block 301. The end of the worm 6 is fixed with a fixed rod 601. A handle 602 is sleeved outside the fixed rod 601. The handle 602 is located on the side of the supporting rod 2.

[0038] The end of the push rod 510 is fixed with a connecting frame 509. A rotating wheel 511 is rotatably connected to the inner side wall of the connecting frame 509. The spring 508 is located between the connecting frame 509 and the circular ring 513. The end of the moving rod 507 penetrates the connecting frame 509 and contacts the rotating wheel 511. The fixed ring 512 is fixed to the inner middle position of the lead screw 5. The rotating wheel 511 is connected to the outer wall of the fixed ring 512 through the spring. The convex block 503 is fixed to the outer wall of the rotating wheel 511. The push rod 510 penetrates the fixed ring 512 and contacts the convex block 503, which pushes the rotating wheel 511 outward and clamps it into the clamping groove in the inner wall of the gear I 505.

[0039] As a specific embodiment of the present application, the fixed rod 601 is vertically moved inside the supporting rod 2. When the discharging cylinder 3 is lowered to the top of the crucible, the handle 602 can be pushed towards the worm 6, so that the outer wall of the handle 602 extrudes the push plate 504 inside the supporting rod 2. When the push plate 504 is extruded, it pushes the moving rod 507 inside the connecting frame 509 to move, Figure 4The inclined surface of the movable rod 507 is in contact with the rotating wheel 511 to push the connecting frame 509 and the push rod 510 to move in the direction of the gear I 505. The end of the push rod 510 is a conical structure that penetrates the fixed ring 512 and is in contact with the protrusion 503 to expand and support the rotating wheel 511 outward to make it clamped into the clamping groove in the inner wall of the gear I 505. The clamping force of the crucible can be fixed to maintain the balance of the crucible during loading and avoid loosening of the clamping device due to equipment vibration during loading. When the powder in the crucible is filled, the rotating handle 602 drives the worm 6 to rotate and engage with the gear ring 801, so that the gear ring 801 rotates and engages with the gear II 803 to make each sector panel 802 closed into a flat shape. Then the handle 602 inside the supporting rod 2 is pulled out, and then the controller drives the cylinder to press down to flatten the filled material, avoiding thick layer accumulation of the powder to ensure the uniformity of the powder heating, ensuring that all particles are in a similar thermal environment to improve the heating efficiency and avoid explosion or bubbles during heat treatment affecting product performance. After the material is flattened, the driving cylinder rises, the gear rod 121 continues to engage with the gear I 505, the rotating screw 5 rotates to open the clamping mechanism on the surface of the crucible, so that the crucible is transported out, and the locking clamping mechanism can be locked while the powder is flattened to ensure consistent clamping force on the crucible.

[0040] By setting the rotating wheel 511, the push rod 510 and the handle 602, when the distance of the descending of the feeding cylinder 3 is relatively long, and the clamping block 7 has been in contact with the surface of the crucible, at this time the feeding cylinder 3 is still descending, the gear rod 121 engages with the gear I 505 to continue to rotate, at this time the handle 602 is not located inside the supporting rod 2, and the space is left between the push plate 504 and the inner wall of the supporting rod 2, so that the gear I 505 continues to rotate the clamping groove in the inner wall of the gear I 505 and the rotating wheel 511, which will appear a card and a card phenomenon to push the rotating wheel 511 to shrink into the inside of the screw 5. At this time, the gear I 505 rotates alone without rotating the screw 5. When the feeding cylinder 3 descends to the appropriate height, the handle 602 is pushed to move to the inside of the supporting rod 2 to extrude the push plate 504, so that the movable rod 507 pushes the push rod 510 to expand the rotating wheel 511 to lock the clamping state. The setting of this structure can make the feeding cylinder 3 freely descend to the height, which can be freely adjusted according to the loading demand without affecting the stability of the crucible clamping.

[0041] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also, the term "about" means approximately or nearly as understood by one of ordinary skill in the art. Also, the use of "adapted to" or "configured to," alone or in combination, can indicate that the component so described is so configured by being programmed or designed to be, but not necessarily actually or actively, in an active or passive sense.

[0042] While embodiments of the application have been shown and described, it is to be understood that various modifications, substitutions, combinations, and variations can be undertaken by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A crucible feeding device for a vacuum carbon tube furnace, comprising: A frame (1) is provided, with a crucible placed on top of the frame (1) and support rods (2) fixed on both sides of the top of the frame (1). The feeding cylinder (4) is fixed to the surface of the support rod (2) by the mounting panel (10) below, and a cylinder is fixed to the outside of the mounting panel (10). The feeding cylinder (3) is sleeved outside the upper feeding cylinder (4); The features are as follows: the top two sides of the frame (1) are provided with clamping mechanisms to fix the crucible during loading. The clamping mechanism includes two clamping blocks (7) and a lead screw (5). The two clamping blocks (7) are staggered. One clamping block (7) is fixed to the bottom of the support rod (2) by a fixing rod, and the other clamping block (7) is fixed to the top side of the frame (1) by a fixing rod. The top of the fixing rod is fitted with a sliding rod I (701) that is slidably connected. The end of the sliding rod I (701) is provided with a connecting rod I (502). The connecting rod I (502) is fixed to the top of the clamping block (7). The clamping block (7) is provided with a clamping adjustment component inside. The bottom of the feed cylinder (3) is provided with a flattening mechanism, which includes a cover plate (8) with a dustproof function, and the cover plate (8) is installed at the bottom of the feed cylinder (3).

2. The vacuum carbon tube furnace crucible feeding device according to claim 1, characterized in that: The connecting rod I (502) has a movable collar (506) fixed at its end. The movable collars (506) on both sides are fitted with lead screws (5). The end of the lead screw (5) is rotatably connected to the fixed rod on the clamping block (7) on the other side. A gear I (505) is provided in the middle position of the lead screw (5).

3. The vacuum carbon tube furnace crucible feeding device according to claim 1, characterized in that: The other end of the lead screw (5) is rotatably connected to a ring (513). A push rod (510) is slidably sleeved inside the lead screw (5). A fixed frame (12) is fixed to the driving end of the cylinder. A toothed rod (121) is fixed to the surface of the fixed frame (12). The cylinder drives the fixed frame (12) and the feeding cylinder (3) to move vertically. At the same time, the toothed rod (121) meshes with the gear I (505) to drive the lead screw (5) to rotate so that the two clamping blocks (7) fix and clamp the crucible. A slot is opened on the inner wall of the gear I (505).

4. The vacuum carbon tube furnace crucible feeding device according to claim 1, characterized in that: The top of the cover plate (8) is provided with a groove, and a toothed ring (801) is rotatably connected in the groove. Multiple circumferentially distributed fan-shaped panels (802) are rotatably connected inside the cover plate (8). A gear II (803) is fixed on the outer wall of the fan-shaped panel (802), and the gear II (803) meshes with the bottom of the toothed ring (801).

5. The vacuum carbon tube furnace crucible feeding device according to claim 6, characterized in that: The top of the toothed ring (801) is engaged with a worm (6), and a fixing block (301) is fixed on the lower surface of the feed cylinder (3). The worm (6) is rotatably mounted on the surface of the fixing block (301). A fixing rod (601) is fixed at the end of the worm (6). A handle (602) is sleeved on the outside of the fixing rod (601). The handle (602) is located on the side of the support rod (2).

6. The crucible feeding device for a vacuum carbon tube furnace according to claim 7, characterized in that: The support rod (2) has a sliding movable rod (507) that slides through it. A push plate (504) is fixed at the end of the movable rod (507). The push plate (504) is located inside the support rod (2). A ring (513) is rotatably connected to one end of the lead screw (5). A spring (508) is sleeved on the surface of the push rod (510).

7. The crucible feeding device for a vacuum carbon tube furnace according to claim 5, characterized in that: The push rod (510) has a connecting frame (509) fixed at its end. A rotating wheel (511) is rotatably connected to the inner side wall of the connecting frame (509). The spring (508) is located between the connecting frame (509) and the ring (513). The end of the moving rod (507) passes through the connecting frame (509) and contacts the rotating wheel (511).

8. The vacuum carbon tube furnace crucible feeding device according to claim 5, characterized in that: A fixing ring (512) is fixed in the middle of the screw (5). A rotating wheel (511) is connected to the outer wall of the fixing ring (512) by a spring. A protrusion (503) is fixed to the outer wall of the rotating wheel (511). The push rod (510) passes through the fixing ring (512) and contacts the protrusion (503) to push the rotating wheel (511) open to the four sides and insert it into the groove on the inner wall of the gear I (505).

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