A feeding device

Abstract

The embodiment of the utility model provides a feeding device, including: a hopper, a lower barrel, a crossbeam and a lifting assembly, wherein the opposite ends of the hopper are respectively provided with a feed port and a discharge port; wherein a first mounting portion is provided at the top of the lower barrel, and a second mounting portion is provided at a position preset distance from the first mounting portion in the lower barrel; the first mounting portion is provided and installed in correspondence with the discharge port of the hopper; the crossbeam is respectively connected to the second mounting portion and the lifting assembly, and the axial direction of the lifting assembly and the lower barrel is the same. The feeding rhythm can be improved, the feeding speed can be accelerated, and the quality of the monocrystalline silicon rods can be improved; moreover, the processes such as visual recognition and action adjustment can be cancelled, which can further reduce the action rhythm duration of the feeding device, improve the efficiency of the feeding device, and reduce the risk points of equipment failure.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal pulling, in particular to a feeding device. Background Art

[0002] At present, quartz cylinders play a key role in the entire production process of single crystal silicon rods as a medium for transporting silicon materials. In order to meet the high-beat and high-efficiency goals on site, automatic loading equipment is currently used for loading.

[0003] Existing lower barrel such as Figure 1A and Figure 1B As shown, the crossbeam 5 is arranged above the quartz tube 1, and divides the mouth structure of the quartz tube 1 into two to form two feeding ports, and a suspension rod 7 is arranged above the mouth of the quartz tube 1. The automation equipment needs to add a visual recognition module to identify a feeding port blocked by the suspension rod 7, and adjust the feeding port of the hopper to connect with the other feeding port of the quartz tube 1 that is not blocked by the suspension rod 7. However, this causes the hopper to only feed materials into the quartz tube from one side of the crossbeam 5, and the feeding rhythm is relatively slow, resulting in a slow speed of raw material input and reduced quality. In addition, the current automation equipment has processes such as visual recognition and action adjustment, which to a certain extent increase the action rhythm duration of the automation equipment, affect efficiency, and increase the risk points of equipment failure. Utility Model Content

[0004] In view of the above problems, embodiments of the present utility model are proposed to provide a feeding device that overcomes the above problems or at least partially solves the above problems.

[0005] In order to solve the above problems, the embodiment of the utility model discloses a feeding device, including: a hopper, a lower barrel, a crossbeam and a lifting assembly, wherein the opposite ends of the hopper are respectively provided with a feed port and a discharge port; wherein,

[0006] A first mounting portion is provided on the top of the lower barrel, and a second mounting portion is provided in the lower barrel at a preset distance from the first mounting portion;

[0007] The first mounting portion is arranged correspondingly and installed in coordination with the discharge port of the hopper;

[0008] The crossbeam is connected to the second mounting portion and the lifting assembly respectively, and the lifting assembly and the lower barrel have the same axial direction.

[0009] Optionally, a protective ring is provided on the top of the lower barrel;

[0010] The axis of the protective ring coincides with the axis of the lower barrel;

[0011] The hopper comprises a feeding part and a connecting part connected to each other;

[0012] The diameter of the protective ring is larger than the outer ring size of the connecting portion and smaller than the outer ring size of the feeding portion. The end of the protective ring axially away from the lower barrel forms the first mounting portion.

[0013] Optionally, in the direction from the feed port to the discharge port of the hopper, the extension length of the connecting portion is 20-40 mm.

[0014] Optionally, the feeding portion comprises a feeding section and a guiding section, and the guiding section is connected between the feeding section and the connecting portion;

[0015] The material guiding section comprises an opposite material discharge side and an avoidance side, and the connecting portion comprises a connecting side connected to the material discharge side;

[0016] When the hopper is mounted on the discharge barrel, there is a second preset angle between the discharge side and the horizontal plane, and there is a third preset angle between the connection side and the horizontal plane, and both the second preset angle and the third preset angle are greater than 40°;

[0017] A gap is provided between the avoidance side and the lifting assembly.

[0018] Optionally, the loading device further comprises a transport vehicle, and a turning frame is rotatably connected to the transport vehicle;

[0019] The lower material barrel is connected to the flip frame, and the flip frame is used to rotate the lower material barrel to a first preset angle so that the lower material barrel is in an inclined state;

[0020] The hopper is assembled with the lower barrel and is synchronously tilted to the second preset angle, which is greater than the stacking angle of the material stacked on the beam.

[0021] Optionally, a feed inlet and a discharge outlet are respectively provided at opposite ends of the hopper;

[0022] The opening size of the feed port is larger than the opening size of the discharge port;

[0023] The shape of the feed port includes at least one of polygonal, circular, and elliptical;

[0024] The shape of the discharge port matches the shape of the first mounting portion.

[0025] Optionally, the feeding device further comprises a rotary support sleeve, and the rotary support sleeve is mounted on the second mounting portion;

[0026] The rotary support sleeve comprises an annular body and a limiting protrusion protruding from the inner wall of the annular body, the axial direction of the annular body is the same as the axial direction of the lower barrel, the limiting protrusion extends toward the axis of the rotary support sleeve, the limiting protrusion and the annular body are combined to form a limiting space for limiting the crossbeam, and the limiting protrusion is detachably connected to the crossbeam;

[0027] The limiting protrusion includes at least one group of two limiting columns arranged opposite to each other, or the limiting protrusion is an annular convex edge.

[0028] Optionally, the crossbeam includes at least one crossbeam, and a through hole is provided on the crossbeam;

[0029] The lifting assembly is penetrated through the penetration hole and movably connected to the cross beam along the axial direction of the lower barrel.

[0030] Optionally, a distance between an end of the first mounting portion away from one end of the second mounting portion and the crossbeam in the axial direction of the lower barrel is a first value;

[0031] The maximum height of the material accumulation on the crossbeam is a second value, and the first value is greater than the second value;

[0032] And / or, at least two of the cross beams are stacked, and the through holes on at least two of the cross beams are opposite and connected along the axial direction of the discharge barrel.

[0033] Optionally, the lifting assembly includes a suspension shaft and a suspension rod;

[0034] The hanging shaft is passed through the cross beam, one end of the hanging shaft is connected to the hanging rod, and the other end of the hanging shaft is connected to a blocking plate, which is arranged below the lower barrel and is used to block the bottom of the lower barrel;

[0035] The suspension rod is arranged above the lower barrel and can extend into the hopper. The suspension rod drives the blocking plate to move along the axial direction of the lower barrel through the suspension shaft.

[0036] Wherein, the outside of the suspension rod is wrapped with an elastic protective sleeve to prevent the suspension rod from contacting materials.

[0037] The utility model embodiment includes the following advantages:

[0038] In the embodiment of the utility model, the crossbeam is connected to the second mounting portion and the lifting assembly respectively, and the lifting assembly and the lower barrel have the same axial direction, so that the lifting assembly can open the lower barrel by moving along its axial direction to add the material in the lower barrel into the single crystal furnace. Since the hopper can be installed on the top of the lower barrel through the first mounting portion, the material in the hopper can be transferred to the single crystal furnace through the lower barrel, which is convenient for completing the feeding operation during the single crystal silicon rod pulling process. In an embodiment of the utility model, the hopper is installed on the top of the discharge barrel, and the crossbeam is installed in the discharge barrel, so as to avoid the crossbeam affecting the docking between the hopper and the first mounting part, and to achieve discharge from both sides of the crossbeam into the discharge barrel, thereby increasing the cross-section of the discharge port of the hopper, improving the discharge rhythm, accelerating the feeding speed, and improving the quality of the single crystal silicon rods; in addition, the visual recognition, action adjustment and other processes can be cancelled to avoid detecting the position of the lifting assembly, and the hopper and the discharge barrel can be directly aligned, thereby further reducing the action rhythm duration of the loading device, improving the efficiency of the loading device, and reducing the risk points of equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1A It is a structural schematic diagram of a feeding device in the prior art;

[0040] Figure 1B It is a cross-sectional view of a feeding device in the prior art;

[0041] Figure 2 It is a structural schematic diagram of a feeding device of the utility model;

[0042] Figure 3 It is a cross-sectional view of a feeding device of the utility model;

[0043] Figure 4 It is a cross-sectional view of a feed barrel of the utility model;

[0044] Figure 5 This is a structural schematic diagram of a rotary support sleeve of the utility model;

[0045] Figure 6 It is a top view of a rotary support sleeve of the utility model;

[0046] Figure 7 It is a cross-sectional view of a rotary support sleeve of the utility model;

[0047] Figure 8 It is a schematic diagram of a beam stacking material of the utility model;

[0048] Fig. 9 It is a structural schematic diagram of a hopper of the utility model;

[0049] Fig.10 It is a structural schematic diagram of another hopper of the utility model.

[0050] Description of reference numerals:

[0051] 1- hopper, 11- feed port, 12- discharge port, 13- discharge side, 14- avoidance side, 2- discharge barrel, 21- second limiter, 22- third limiter, 3- crossbeam, 31- mounting hole, 32- through hole, 4- lifting assembly, 41- hanging shaft, 42- hanging rod, 43- elastic protective sleeve, 44- isolation tube, 45- blocking plate, 5- protective ring, 6- slewing support sleeve, 61- limit protrusion, 62- annular body, 71- transport vehicle, 72- turning frame, 8- fastener, 9- material. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] One of the core concepts of the embodiment of the utility model is to disclose a feeding device, such as Figure 2 and Figure 3 As shown, the feeding device can specifically include a hopper 1, a lower barrel 2, a crossbeam 3 and a lifting assembly 4, and the hopper 1 is provided with a feed port 11 and a discharge port 12 at two opposite ends thereof; wherein, a first mounting portion is provided at the top of the lower barrel 2, and a second mounting portion is provided at a position in the lower barrel 2 at a preset distance from the first mounting portion; the first mounting portion is provided and installed in correspondence with the discharge port 12 of the hopper 1; the crossbeam 3 is respectively connected to the second mounting portion and the lifting assembly 4, and the axial direction of the lifting assembly 4 and the lower barrel 2 is the same.

[0057] In the embodiment of the utility model, the crossbeam 3 is connected to the second mounting portion and the lifting assembly 4 respectively, and the lifting assembly 4 and the lower barrel 2 have the same axial direction, so that the lifting assembly 4 can open the lower barrel 2 along its axial movement to add the material 9 in the lower barrel 2 into the single crystal furnace. Since the hopper 1 can be installed on the top of the lower barrel 2 through the first mounting portion, the material 9 in the hopper 1 can be transferred to the single crystal furnace through the lower barrel 2, which is convenient for completing the feeding operation during the single crystal silicon rod pulling process. In an embodiment of the utility model, the hopper 1 is installed on the top of the discharge barrel 2, and the crossbeam 3 is installed in the discharge barrel 2, so that the crossbeam 3 can be prevented from affecting the docking between the hopper 1 and the first mounting portion, and material can be discharged into the discharge barrel 2 from both sides of the crossbeam 3, thereby increasing the cross-section of the discharge port 12 of the hopper 1, improving the discharge rhythm, accelerating the feeding speed, and improving the quality of the single crystal silicon rods; in addition, the visual recognition, action adjustment and other processes can be cancelled to avoid detecting the position of the lifting component 4, and the hopper 1 and the discharge barrel 2 can be directly aligned, thereby further reducing the action rhythm duration of the loading device, improving the efficiency of the loading device, and reducing the risk points of equipment failure.

[0058] The feeding device described in the embodiment of the utility model can be used to feed materials into a single crystal furnace to pull single crystal silicon rods. The feeding device includes a hopper 1 and a lower barrel 2, a crossbeam 3 is installed in the lower barrel 2, and a lifting assembly 4 is connected to the crossbeam 3, so that the crossbeam 3 can support the lifting assembly 4 to a certain extent.

[0059] Specifically, the lifting assembly 4 and the lower barrel 2 have the same axial direction, and the lifting assembly 4 can move along its axial direction, and can drive the blocking plate 45 to block or open the bottom of the lower barrel 2 to improve the reliability of the lower barrel 2. Further, the lifting assembly 4 can move relative to the crossbeam 3, or the lifting assembly 4 can drive the crossbeam 3 to move relative to the lower barrel 2, which can be specifically set according to actual needs.

[0060] Specifically, the material of the hopper 1 may be polyurethane, and the wall thickness of the hopper 1 may be 5-10 mm, which has a certain strength to ensure that the material 9 will not leak due to the deformation of the hopper 1 .

[0061] Furthermore, the hopper 1 can be detachably connected to the lower barrel 2, and the hopper 1 can transport the material 9 into the lower barrel 2, and then transport the material 9 to the crucible in the single crystal furnace through the lower barrel 2.

[0062] Specifically, the hopper 1 can extend into the lower barrel 2 to a certain extent to effectively ensure that the material 9 in the hopper 1 falls into the lower barrel 2 to prevent the material 9 from leaking out.

[0063] Specifically, the hopper 1 may include a feed port 11 disposed at its top and a discharge port 12 disposed at its bottom, and the lower barrel 2 may include an upper port disposed at its top and a lower port disposed at its bottom. The discharge port 12 of the hopper 1 cooperates with the upper port of the lower barrel 2, so that the material 9 slides from the hopper 1 into the lower barrel 2 by its own gravity; the lower port of the lower barrel 2 may cooperate with the crucible in the single crystal furnace, so that

[0064] The material 9 enters the crucible in the single crystal furnace from the lower barrel 2 by its own gravity.

[0065] Optionally, the opening size of the feed port 11 is larger than the opening size of the discharge port 12 , which can guide the material 9 and facilitate the material 9 to flow from the hopper 1 into the lower barrel 2 .

[0066] Optionally, the shape of the feed port 11 may include at least one of a polygon, a circle, and an ellipse, so as to increase the structural diversity of the feed port.

[0067] Specifically, the shape of the feed port 11 may include regular shapes such as polygons, circles, and ellipses, or may include irregular shapes in any combination of polygons, circles, and ellipses.

[0068] Optionally, the shape of the discharge port 12 may match the shape of the first mounting portion to improve the reliability of the assembly of the hopper 1 and the lower barrel 2 .

[0069] Specifically, the discharge port 12 of the hopper 1 may be circular or elliptical, and may be specifically configured according to actual needs, and the embodiment of the utility model does not specifically limit this.

[0070] Specifically, a first mounting portion may be provided at the top of the lower barrel 2, and a second mounting portion may be provided at a position inside the lower barrel 2 at a preset distance from the first mounting portion. The first mounting portion is installed and cooperated with the discharge port 12 of the hopper 1, and the second mounting portion is connected to the cross beam 3, so as to avoid the cross beam 3 interfering with the installation cooperation between the hopper 1 and the lower barrel 2.

[0071] Specifically, since the hopper 1 is connected to the top of the discharge barrel 2 and the crossbeam 3 is arranged in the discharge barrel 2, the material 9 in the hopper 1 can enter the discharge barrel 2 from both sides of the crossbeam 3, thereby effectively increasing the inflow space of the material 9, eliminating the visual recognition mechanism and the hopper 1 adjustment mechanism, reducing the difficulty of implementing automation, reducing costs, and improving the efficiency and rhythm of material discharge.

[0072] Specifically, the hopper 1 can be buckled and connected with the first mounting portion to facilitate the detachable connection between the hopper 1 and the lower barrel 2. The crossbeam 3 can be movably connected with the second mounting portion and the lifting assembly 4, respectively, or the crossbeam 3 can be fixedly connected with the second mounting portion and movably connected with the lifting assembly 4, which is not specifically limited in the embodiment of the utility model.

[0073] In the embodiment of the utility model, by optimizing the feeding device, the size of the feeding port on the unloading barrel 2 can be increased, the complexity of the automated docking equipment can be reduced, the use of hardware can be reduced, the equipment failure points can be reduced, the action time in the automated feeding process can be reduced, the feeding rhythm and efficiency can be improved, and the production benefits can be improved.

[0074] Optionally, the crossbeam 3 may include at least one, and a through hole 32 may be provided on the crossbeam 3; the lifting assembly 4 is penetrated through the through hole 32, and can be movably connected to the crossbeam 3 along the axial direction of the lower barrel 2, so as to facilitate the axial movement of the lifting assembly 4.

[0075] Optionally, when the cross beams 3 include at least two, the at least two cross beams 3 can be stacked, and the through holes 32 on the at least two cross beams 3 can be opposite and connected along the axial direction of the discharge barrel 2, which can improve the reliability of assembly of the at least two cross beams 3 and the lifting assembly 4.

[0076] Optionally, a protective ring 5 is provided at the top of the lower barrel 2; the axis of the protective ring 5 coincides with the axis of the lower barrel. Specifically, the lower barrel 2 and the protective ring 5 can both be rotary structures, and the axis of the lower barrel 2 and the axis of the protective ring 5 can coincide; one end of the protective ring 5 along its axial direction can be assembled with the top of the lower barrel 2, and the end of the protective ring 5 along its axial direction away from the lower barrel 2 can form a first mounting portion and clamp the hopper 1, and the two ends of the protective ring 5 can be assembled with the hopper 1 and the lower barrel 2 respectively, thereby realizing the assembly between the hopper 1 and the lower barrel 2.

[0077] Specifically, the protective ring 5 is sleeved on the top of the discharge barrel 2 and can also play a protective role for the discharge barrel 2.

[0078] Optionally, a first limiter is provided on the inner wall of the protective ring 5, and a second limiter 21 is provided on the outer wall of the lower barrel 2; the first limiter and the second limiter 21 are connected in a limiting manner, which can improve the reliability of the fixation between the protective ring 5 and the lower barrel 2.

[0079] Specifically, the first limiting member and the second limiting member 21 are arranged in a one-to-one correspondence, and the number of the first limiting member can be one or more.

[0080] Optionally, one of the first limiting member and the second limiting member 21 may be a limiting protrusion, and the corresponding other may be a limiting groove, and the limiting column is buckled in the limiting groove.

[0081] Optionally, the limiting protrusion and the limiting groove are arranged in one-to-one correspondence, and the shape of the limiting protrusion is adapted to the shape of the limiting groove. For example, the limiting protrusion can be a limiting rod, and the corresponding limiting groove can be a groove; or, the limiting protrusion can be an annular structure, and the corresponding limiting groove can be an annular groove.

[0082] In some optional embodiments of the present invention, a stepped hole is provided at one end of the protective ring 5 away from the discharge barrel 2, and the stepped hole can be enclosed to form a first mounting portion.

[0083] In the embodiment of the utility model, a stepped hole is provided on the protective ring 5 to form a first mounting portion, thereby improving the reliability of the mounting and matching between the hopper 1 and the lower barrel 2 .

[0084] Specifically, the stepped holes can be enclosed to form a stepped surface, so as to provide support and limitation for the hopper 1 .

[0085] Specifically, the shape of the stepped hole can be the same as or similar to the shape of the discharge port 12 of the hopper 1 , so that the first mounting portion can match the discharge port 12 of the hopper 1 , so that the first mounting portion can guide and limit the hopper 1 .

[0086] Optionally, the stepped hole may include a first through hole and a second through hole; the second through hole is arranged between the first through hole and the lower barrel 2, and the opening size of the second through hole is smaller than the opening size of the first through hole; the shape of the first through hole can be the same as the shape of the discharge port 12 of the hopper 1, which can improve the reliability of inserting the discharge port 12 of the hopper 1 into the first through hole.

[0087] Optionally, along the axial direction of the lower barrel 2, the projections of the first through hole and the second through hole both fall within the projection of the barrel mouth of the lower barrel 2, which can improve the reliability of the material 9 in the hopper 1 falling into the lower barrel 2, avoid waste of material 9, and improve the utilization rate of material 9.

[0088] Optionally, the axes of the first through hole and the second through hole may coincide or may not coincide, etc.

[0089] Specifically, the depth of the first through hole in the axial direction of the lower barrel 2 may be approximately 20-40 mm, so that the insertion depth of the hopper 1 is 20-40 mm.

[0090] In other optional embodiments of the utility model, the hopper 1 includes a feeding part and a connecting part connected to each other; the diameter of the protective ring 5 is larger than the outer ring size of the connecting part and smaller than the outer ring size of the feeding part, and the protective ring 5 forms a first mounting part along its axial end away from the lower barrel 2.

[0091] In the embodiment of the utility model, the caliber of the protective ring 5 is larger than the outer ring size of the connecting part and smaller than the outer ring size of the feeding part. In this way, after the connecting part of the hopper 1 is embedded in the protective ring 5, the protective ring 5 can clamp the hopper 1, and then the installation between the hopper 1 and the lower barrel 2 can be realized through the protective ring 5.

[0092] Optionally, in the direction from the feed port 11 to the discharge port 12 of the hopper 1, the extension length of the connection portion can be 20-40 mm. In this way, by extending the connection portion of the hopper 1 into the protective ring 5 by 20-40 mm, the hopper 1 can be limited, the stability of the fit between the hopper 1 and the protective ring 5 can be improved, and the material 9 can be prevented from spilling.

[0093] Optionally, the feeding part includes a feeding section and a guiding section, the guiding section is connected between the feeding section and the connecting part; the guiding section includes a relatively unloading side 13 and an avoidance side 14, and the connecting part includes a connecting side connected to the unloading side 13; when the hopper 1 is installed on the unloading barrel 2, there is a second preset angle between the unloading side 13 and the horizontal plane, and there is a third preset angle between the connecting side and the horizontal plane, and both the second preset angle and the third preset angle can be greater than 40°; there is a gap between the avoidance side 14 and the lifting assembly 4.

[0094] In the embodiment of the utility model, there is a second preset angle θ1 between the material discharge side 13 and the horizontal plane, so that the material discharge side 13 can guide the material 9, which can improve the convenience and reliability of the material 9 sliding from the hopper 1 into the discharge barrel 2. There is a gap between the avoidance side 14 and the lifting component 4, which can prevent the lifting component 4 from interfering with the material 9 sliding from the hopper 1 into the discharge barrel 2, and can improve the material discharge rhythm.

[0095] Specifically, the feeding portion includes a feeding section and a guiding section. The feeding section and the guiding section can be smoothly connected to form an integrated structure, or the feeding section and the guiding section can also be two independent sections.

[0096] Specifically, during the entire process of the lifting component 4 moving along its axial direction, there is a gap between the avoidance side 14 and the lifting component 4. On the one hand, it can prevent the unloading side 13 from interfering with the movement of the lifting component 4, and on the other hand, it allows the material 9 to slide through the gap.

[0097] Specifically, there is a gap between the entire inner wall of the hopper 1 and the lifting assembly 4 .

[0098] Specifically, Figure 3As shown, the second preset angle θ1 can reach 45°, which is the angle between the discharge side 13 and the horizontal plane. The discharge side 13 can guide the material 9 and increase the speed at which the material 9 falls into the discharge barrel 2. For example, the second preset angle θ1 can also be 50°, 55°, 60°, 70°, etc.

[0099] Specifically, Fig. 9 and Fig.10 As shown, the feeding section can be smoothly connected with the guiding section as a whole, and the feeding side 13 and the avoiding side 14 can be parallel or skewed, etc. The feeding side 13 can be streamlined or straight arm-shaped, etc., and the avoiding side 14 can be streamlined or straight arm-shaped, etc.

[0100] Specifically, the connection side may be connected to the unloading side 13 , the connection side and the unloading side 13 may be smoothly connected, and the third preset angle between the connection side and the horizontal plane may be close to the second preset angle.

[0101] Alternatively, there may be an angle between the connection side and the blanking side 13, and the third preset angle may be greater than the second preset angle. For example, the third preset angle may be close to 90 degrees.

[0102] Specifically, the third preset angle may be greater than 40°, for example, it may be 40°, 45°, 60°, 70°, 90°, etc.

[0103] Optionally, the third preset angle may also be consistent with the inclination angle of the protective ring 5, that is, consistent with the inclination angle of the lower barrel 2, so as to facilitate the assembly of the hopper 1 and the first mounting portion.

[0104] Optionally, the loading device also includes a transport trolley 71, which is rotatably connected to a turning frame 72; the lower barrel 2 is connected to the turning frame 72, and the turning frame 72 is used to rotate the lower barrel 2 to a first preset angle so that the lower barrel 2 is in an inclined state; the hopper 1 is assembled with the lower barrel 2 and synchronously tilted to a second preset angle θ1, and the second preset angle θ1 is greater than the stacking angle θ2 of the material 9 stacked on the beam 3, which can ensure that the material 9 falls from the hopper 1 into the lower barrel 2, thereby reducing the excessive accumulation of material 9 on the beam 3.

[0105] Optionally, the second preset angle θ1 may be greater than 40°, which can effectively ensure that the hopper 1 is sufficiently inclined and greater than the stacking angle θ2 of the material 9 stacked on the beam 3 , so as to effectively ensure that the hopper 1 can smoothly feed the material into the lower barrel 2 .

[0106] Specifically, during the process of adding the material 9 in the hopper 1 into the lower barrel 2, the lower barrel 2 is in an inclined state, and the inclination angle may be a first preset angle; the hopper 1 is tilted synchronously to facilitate the material 9 in the hopper 1 to slide into the lower barrel 2. Figure 3As shown, the inclination angle of the hopper 1 is a second preset angle θ1, that is, the angle between the material discharge side 13 of the hopper 1 and the horizontal plane. When the material 9 in the discharge barrel 2 is added to the crucible in the single crystal furnace, the discharge barrel 2 can be placed vertically so that the axial direction of the discharge barrel 2 is in the same direction as the axial direction of the single crystal furnace, so that the material 9 in the discharge barrel 2 can slide into the single crystal furnace.

[0107] Specifically, the first preset angle may be an inclination angle of the lower barrel 2 relative to the horizontal plane, and the second preset angle θ1 may be an inclination angle of the hopper 1 relative to the horizontal plane.

[0108] Optionally, the material range of the first preset angle can be 45°-60°, which can effectively ensure that the lower barrel 2 is sufficiently inclined to smoothly receive the material 9 in the hopper 1.

[0109] Specifically, during the process of the material 9 in the hopper 1 falling into the lower barrel 2, some material 9 will accumulate on the crossbeam 3, such as Figure 8 As shown, the stacking height of the material 9 can reach a maximum of H2, and the stacking angle can reach θ2. The stacking height and the stacking angle θ2 are determined by the size of the beam 3 and the inclination angle of the beam 3 and the horizontal plane during loading. The stacking angle θ2 can be 30°, 35°, 36°, 38°, 39° or 40°, etc.

[0110] For example, when the material 9 in the hopper 1 is added to the lower barrel 2, in one case, the lower barrel 2 can be placed vertically, and the lower barrel 2 has a second preset angle with the horizontal plane, and the third preset angle between the connecting side of the hopper 1 and the horizontal plane is close to 90 degrees; in another case, the lower barrel 2 is tilted to the first preset angle, and the lower barrel 2 has a second preset angle with the horizontal plane, and the third preset angle between the connecting side of the hopper 1 and the horizontal plane is close to the first preset angle.

[0111] In the embodiment of the utility model, the feeding process of the feeding device includes:

[0112] The transport vehicle 71 is mechanically fixed and limited, the robot grabs the material box 9 and moves the hopper 1 at a fixed point, then docks the hopper 1 with the barrel mouth of the lower barrel 2 from above, and inserts the discharge port 12 of the hopper 1 into the protective ring 5, so that at least part of the hopper 1 extends into the protective ring 5.

[0113] Specifically, the material adding method can adopt a single box to gradually pour the material, so as to avoid the risk of material jamming during the material discharge process caused by too much material 9 in the hopper 1.

[0114] In some other optional embodiments of the utility model, the feeding device also includes a swivel support sleeve 6, which is installed on the second installation part; the swivel support sleeve 6 includes an annular body 62 and a limiting protrusion 61 protruding from the inner wall of the annular body 62, and the limiting protrusion 61 extends toward the axis of the swivel support sleeve 6. The limiting protrusion 61 and the annular body 62 are combined to form a limiting space for limiting the beam 3, and the limiting protrusion 61 is detachably connected to the beam 3.

[0115] In the embodiment of the utility model, the limiting protrusion 61 and the annular body 62 are combined to form a limiting space, which can improve the reliability of fixing the crossbeam 3.

[0116] Specifically, Figure 4 As shown, the cross beam 3 and the limiting protrusion 61 can be fixed by the fastener 8 to achieve a detachable connection between the slewing support sleeve 6 and the cross beam 3 .

[0117] Optionally, the limiting protrusion 61 may include at least one group of two limiting columns that are arranged opposite to each other, and the two limiting columns may respectively support and fix the two ends of the beam 3 .

[0118] Optionally, the limiting protrusion 61 may be an annular protrusion, which can improve the force-bearing reliability of the limiting protrusion 61 .

[0119] Specifically, the cross beam 3 has a rectangular strip shape, and mounting holes 31 are respectively provided at both ends of the cross beam 3 in the length direction, and threaded holes can be provided on the limiting protrusion 61, and the threaded holes and the mounting holes 31 are arranged oppositely, and the fasteners 8 can be respectively passed through the mounting holes 31 and the threaded holes. The fasteners 8 can be bolts made of PTFE.

[0120] Specifically, the connection between the rotary support sleeve 6 and the discharge barrel 2 can be achieved by bolt fixing, snap-fit ​​connection, clamping or bonding, etc., which is not specifically limited in the embodiment of the utility model.

[0121] Optionally, a third limiting member 22 may be further provided on the inner wall of the discharge barrel 2 to support and limit the rotary support sleeve 6. The third limiting member 22 may be an annular protrusion, or the third limiting member 22 may also include at least one group of two limiting rods arranged opposite to each other.

[0122] In some other optional embodiments of the utility model, the distance between the end of the first mounting portion away from one end of the second mounting portion and the cross beam 3 in the axial direction of the lower barrel 2 is a first value H1; the maximum height value of the material 9 accumulated on the cross beam 3 is a second value H2, and the first value H1 is greater than the second value H2. In this way, after the hopper 1 is disassembled from the lower barrel 2, the material 9 accumulated on the cross beam 3 can be prevented from falling out of the lower barrel 2, thereby reducing the loss of material 9.

[0123] For example, the second value H2 is 100mm, and the first value H1 can be 110mm; or the second value H2 is 106mm, and the first value H1 can be 120mm; or, the second value H2 is 120mm, and the first value H1 can be 130mm; the second value H2 is 140mm, and the first value H1 can be 160mm; or, the second value H2 is 90mm, and the first value H1 can be 105mm.

[0124] Optionally, the lifting assembly 4 may include a hanging shaft 41 and a hanging rod 42; the hanging shaft 41 is passed through the crossbeam 3; one end of the hanging shaft 41 is connected to the hanging rod 42, and the other end of the hanging shaft 41 is connected to a blocking plate 45, which is arranged below the lower barrel 2, and is used to block the bottom of the lower barrel 2; the hanging rod 42 is arranged above the lower barrel 2 and can be extended into the hopper 1, and the hanging rod 42 drives the blocking plate 45 to move axially along the lower barrel 2 through the hanging shaft 41.

[0125] In the embodiment of the utility model, the suspension rod 42 drives the blocking plate 45 to move along the axial direction of the lower barrel 2 through the suspension shaft 41, so that the blocking plate 45 blocks the bottom of the lower barrel 2, making it convenient to add the material 9 in the hopper 1 into the lower barrel 2; the blocking plate 45 opens the bottom of the lower barrel 2, which can also improve the convenience of feeding the lower barrel 2 into the single crystal furnace.

[0126] Specifically, combined Figure 5-Figure 7 As shown, the crossbeam 3 may be provided with a through hole 32 at the center in the length direction thereof, and the hanging shaft 41 may be passed through the through hole 32. In addition, the hanging shaft 41 is supported at the bottom and the top of the lower barrel 2, and the crossbeam 3 may support the hanging shaft 41 at the center of the lower barrel 2. The hanging shaft 41 may be made of metal.

[0127] Optionally, the outside of the suspension rod 42 may include an elastic protective cover 43 to prevent the suspension rod 42 from directly contacting the material 9 and contaminating the material 9, thereby effectively ensuring the quality of the material 9.

[0128] Specifically, the elastic protective cover 43 may be made of a wear-resistant, pollution-free polyurethane material or a pollution-free material such as tungsten carbide or single crystal silicon, and the suspension rod 42 may be made of stainless steel.

[0129] Furthermore, the size of the elastic protective sleeve 43 can be slightly smaller than the outer contour size of the suspension rod 42, so that the elastic protective sleeve 43 can be put on the suspension rod 42 by relying on the elasticity of the elastic protective sleeve 43, thereby avoiding relative falling off between the elastic protective sleeve 43 and the suspension rod 42.

[0130] Optionally, the hanging shaft 41 may be wrapped with an isolation tube 44 , so that the isolation tube 44 can protect the hanging shaft 41 , avoid direct contact between metal and material 9 and contamination of material 9 , and effectively ensure the quality of material 9 .

[0131] The feeding device described in the embodiment of the utility model has at least the following advantages:

[0132] In the embodiment of the utility model, the crossbeam is connected to the second mounting portion and the lifting assembly respectively, and the lifting assembly and the lower barrel have the same axial direction, so that the lifting assembly can open the lower barrel by moving along its axial direction to add the material in the lower barrel into the single crystal furnace. Since the hopper can be installed on the top of the lower barrel through the first mounting portion, the material in the hopper can be transferred to the single crystal furnace through the lower barrel, which is convenient for completing the feeding operation during the single crystal silicon rod pulling process. In an embodiment of the utility model, the hopper is installed on the top of the discharge barrel, and the crossbeam is installed in the discharge barrel, so as to avoid the crossbeam affecting the docking between the hopper and the first mounting part, and to achieve discharge from both sides of the crossbeam into the discharge barrel, thereby increasing the cross-section of the discharge port of the hopper, improving the discharge rhythm, accelerating the feeding speed, and improving the quality of the single crystal silicon rods; in addition, the visual recognition, action adjustment and other processes can be cancelled to avoid detecting the position of the lifting assembly, and the hopper and the discharge barrel can be directly aligned, thereby further reducing the action rhythm duration of the loading device, improving the efficiency of the loading device, and reducing the risk points of equipment failure.

[0133] Although the preferred embodiments of the utility model embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0134] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0135] The above is a detailed introduction to a feeding device provided by the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A feeding device, characterized in that: include: A hopper, a lower barrel, a crossbeam and a lifting assembly, wherein the two opposite ends of the hopper are respectively provided with a feed inlet and a discharge outlet; wherein, A first mounting portion is provided on the top of the lower barrel, and a second mounting portion is provided in the lower barrel at a preset distance from the first mounting portion; The first mounting portion is arranged correspondingly and installed in coordination with the discharge port of the hopper; The crossbeam is connected to the second mounting portion and the lifting assembly respectively, and the lifting assembly and the lower barrel have the same axial direction.

2. The feeding device according to claim 1, characterized in that: A protective ring is provided on the top of the lower barrel; The axis of the protective ring coincides with the axis of the lower barrel; The hopper comprises a feeding part and a connecting part connected to each other; The diameter of the protective ring is larger than the outer ring size of the connecting portion and smaller than the outer ring size of the feeding portion. The end of the protective ring axially away from the lower barrel forms the first mounting portion.

3. The feeding device according to claim 2, characterized in that: In the direction from the feed port to the discharge port of the hopper, the extension length of the connecting portion is 20-40 mm.

4. The feeding device according to claim 2, characterized in that: The feeding portion comprises a feeding section and a guiding section, wherein the guiding section is connected between the feeding section and the connecting portion; The material guiding section comprises an opposite material discharge side and an avoidance side, and the connecting portion comprises a connecting side connected to the material discharge side; When the hopper is mounted on the discharge barrel, there is a second preset angle between the discharge side and the horizontal plane, and there is a third preset angle between the connection side and the horizontal plane, and both the second preset angle and the third preset angle are greater than 40°; A gap is provided between the avoidance side and the lifting assembly.

5. The feeding device according to claim 1 or 4, characterized in that: The loading device further comprises a transport vehicle, to which a turning frame is rotatably connected; The lower material barrel is connected to the flip frame, and the flip frame is used to rotate the lower material barrel to a first preset angle so that the lower material barrel is in an inclined state; The hopper is assembled with the lower barrel and is synchronously tilted to a second preset angle, wherein the second preset angle is greater than a stacking angle of the material stacked on the beam.

6. The feeding device according to claim 1, characterized in that: The opening size of the feed port is larger than the opening size of the discharge port; The shape of the feed port includes at least one of polygonal, circular, and elliptical; The shape of the discharge port matches the shape of the first mounting portion.

7. The feeding device according to claim 1, characterized in that: The feeding device further comprises a rotary support sleeve, and the rotary support sleeve is mounted on the second mounting portion; The rotary support sleeve comprises an annular body and a limiting protrusion protruding from the inner wall of the annular body, the axial direction of the annular body is the same as the axial direction of the lower barrel, the limiting protrusion extends toward the axis of the rotary support sleeve, the limiting protrusion and the annular body are combined to form a limiting space for limiting the crossbeam, and the limiting protrusion is detachably connected to the crossbeam; The limiting protrusion includes at least one group of two limiting columns arranged opposite to each other, or the limiting protrusion is an annular convex edge.

8. The feeding device according to claim 1, characterized in that: The crossbeam comprises at least one crossbeam, and a through hole is provided on the crossbeam; The lifting assembly is penetrated through the penetration hole and movably connected to the cross beam along the axial direction of the lower barrel.

9. The feeding device according to claim 8, characterized in that: The distance between the end of the first mounting portion away from one end of the second mounting portion and the cross beam in the axial direction of the lower barrel is a first value; The maximum height of the material accumulation on the crossbeam is a second value, and the first value is greater than the second value; And / or, at least two of the cross beams are stacked, and the through holes on at least two of the cross beams are opposite and connected along the axial direction of the discharge barrel.

10. The feeding device according to claim 1, characterized in that: The lifting assembly includes a suspension shaft and a suspension rod; The hanging shaft is passed through the cross beam, one end of the hanging shaft is connected to the hanging rod, and the other end of the hanging shaft is connected to a blocking plate, which is arranged below the lower barrel and is used to block the bottom of the lower barrel; The suspension rod is arranged above the lower barrel and can extend into the hopper. The suspension rod drives the blocking plate to move along the axial direction of the lower barrel through the suspension shaft. Wherein, the outside of the suspension rod is wrapped with an elastic protective sleeve to prevent the suspension rod from contacting materials.

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