Graphite boat device capable of automatically carrying and unloading solar cells
By combining the hydraulic cylinder with the lifting auxiliary components, the horizontal state of the graphite boat is monitored and corrected in real time, which solves the shaking and safety hazards during the graphite boat handling and unloading process, and achieves stable and efficient graphite boat handling and unloading.
Patent Information
- Application Number
- CN202511013968.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-08-26
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional graphite boats are easily shaken during the unloading process, resulting in structural damage, and manual handling is time-consuming and labor-intensive, which poses safety hazards in lifting methods.
The hydraulic cylinder is combined with the lifting auxiliary components, and is connected to the hydraulic cylinder through the lifting slider and the connection structure, and the horizontal state of the graphite boat is monitored and corrected in real time with an electronic level to ensure stability and safety.
It effectively avoids the shaking and inclination of the graphite boat during the handling and unloading process, reduces structural damage, improves the accuracy and safety of the handling and unloading process, and reduces the intensity of manual labor.
Smart Images
Figure CN120545233A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of graphite boat handling, in particular to a device for self-handling a graphite boat for solar cells. Background Art
[0002] Graphite boats are one of the core consumables widely used in the solar cell production process. They possess excellent physical and chemical properties, such as high-temperature stability, corrosion resistance, electrical conductivity, and thermal conductivity. In solar cell production, graphite boats are a core consumable used to support silicon wafers for high-temperature processing.
[0003] Traditional graphite boat loading and unloading methods mainly rely on manual handling or hoisting. Manual handling is time-consuming and labor-intensive. In addition, in the hoisting method, the base of the graphite boat is usually fixed by a hanging point. If the hanging point is improperly set or the structure at the hanging point is not strong enough, it may cause the graphite boat to swing in the air. In addition, some external interference may easily cause the graphite boat and its base to shake, and frequent shaking may cause slight deformation of the structure of the graphite boat. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the present invention aims to provide a device for automatically unloading a graphite boat for solar cells, so as to solve the problem of the graphite boat being easily shaken during the unloading process mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solutions: a device for automatically loading and unloading a graphite boat for solar cells, comprising a rectangular bottom frame with a graphite boat body and a hydraulic cylinder, a lifting auxiliary component embedded in the surface of the rectangular bottom frame, and a positioning component embedded in the middle of the front of the rectangular bottom frame, the positioning component being used to monitor the horizontal state of the graphite boat body and the rectangular bottom frame in real time; The lifting auxiliary component includes a lifting guide rail that is detachably mounted on the concave portion of the rectangular bottom frame surface, a lifting slider is slidably mounted on the lifting guide rail, a connecting structure is rotatably engaged inside the lifting slider, and the connecting structure is detachably connected to the free end of the hydraulic cylinder.
[0006] Preferably, the connection structure is composed of a threaded collar and a limiting collar fixedly sleeved on the middle surface of the threaded collar, and the height of the threaded collar is consistent with the thickness of the lifting slider.
[0007] Preferably, sliding grooves are provided on both sides of the inner wall of the lifting guide rail, and both sides of the lifting slider extend to the inside of the sliding grooves.
[0008] Preferably, a magnetic sheet is embedded in the rear wall of the lifting guide rail, the connecting structure is made of iron, and the thickness of the rectangular block is consistent with the front and rear depth of the recessed part of the lifting guide rail.
[0009] Preferably, the top surface of the lifting slider is provided with a through groove for adapting the connecting structure, the front surface of the lifting slider is provided with an inner groove, and the inner groove and the through groove are connected to each other, and the distance between the central axis of the limiting ring and the front surface of the rectangular block is smaller than the radius of the limiting ring.
[0010] Preferably, the positioning assembly includes a positioning block installed in the middle of the front of the rectangular bottom frame, an electronic level is installed on the front of the positioning block, an indicator is installed on the top surface of the positioning block, and the indicator is wirelessly connected to the electronic level.
[0011] The front and rear sides of the graphite boat body are both provided with slots, and the inner front wall and the inner rear wall of the rectangular bottom frame are both provided with buckles. When the graphite boat body is embedded in the rectangular bottom frame, the buckles extend into the slots.
[0012] Preferably, the buckle consists of an elastic base and a docking head slidably connected in the elastic base, and the portion of the docking head extending out of the elastic base is semi-cylindrical, and the spacing between the two elastic bases arranged axially front and back is consistent with the front and back width of the graphite boat body.
[0013] By means of the above technical solution, the present invention provides a device for automatically unloading a graphite boat for solar cells, which has at least the following beneficial effects: 1. The present invention equips the rectangular base frame with a lifting auxiliary assembly for combination with a hydraulic cylinder. After the two are combined, the linear thrust of the hydraulic cylinder is used to smoothly lift the rectangular base frame containing the graphite boat body, avoiding the shaking or tilting caused by inertia in conventional lifting, and preventing the graphite boat body from being damaged by forced vibration.
[0014] 2. In the present invention, when the hydraulic cylinder drives the lifting slider to move upward, the rectangular bottom frame can be driven to move upward only after the lifting slider is in contact with the top wall of the chute. This can effectively avoid uneven force or displacement deviation in the initial stage caused by direct drive of the hydraulic cylinder. The movement of the lifting slider in the chute can automatically correct the posture of the rectangular bottom frame, ensuring that the rectangular bottom frame remains strictly parallel when rising, thereby reducing the risk of stress damage to the graphite boat body caused by tilting.
[0015] 3. The present invention can monitor the horizontal state of the positioning block in real time through the electronic level and provide intuitive feedback through the indicator, which can ensure the accuracy and safety of the loading and unloading process to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic structural diagram of the lifting auxiliary component of the present invention; Figure 3 This is a schematic diagram of the installation structure of the lifting slider and the connecting structure of the present invention; Figure 4 It is a structural schematic diagram of the connection structure of the present invention; Figure 5 It is a structural schematic diagram of the positioning component of the present invention.
[0017] In the figure: 1. Graphite boat body; 101. Card slot; 2. Rectangular bottom frame; 201. Buckle; 2011. Elastic card seat; 2012. Butt joint; 3. Hydraulic cylinder; 4. Lifting auxiliary assembly; 401. Lifting guide rail; 4011. Slide groove; 4012. Magnetic sheet; 402. Lifting slider; 4021. Inner groove; 403. Connecting structure; 4031. Threaded collar; 4032. Limit collar; 5. Positioning assembly; 501. Positioning block; 502. Electronic level; 503. Indicator. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.
[0019] Example 1 See also Figure 1-Figure 5This embodiment provides a self-loading and unloading device for a solar cell graphite boat, which can effectively ensure the stability of the graphite boat during the loading and unloading process. In this self-loading and unloading device, the graphite boat body 1 and the rectangular base frame 2 that fits the graphite boat body 1 serve as the objects to be loaded and unloaded. The hydraulic cylinder 3 is connected to an external transfer device and includes a threaded column at the free end. A lifting auxiliary assembly 4 is embedded in the surface of the rectangular base frame 2. Depending on the actual application, multiple lifting auxiliary assemblies 4 can be provided on the front and rear sides of the rectangular base frame 2. The lifting auxiliary assembly 4 includes a lifting guide rail 401 that is removably mounted in a recessed portion of the surface of the rectangular base frame 2. A lifting slider 402 is slidably mounted on the lifting guide rail 401. The lifting slider 402 has a connecting structure 403 that is rotatably engaged within the interior and is used for removable connection to the free end of the hydraulic cylinder 3. A positioning assembly 5 is embedded in the middle of the front of the rectangular base frame 2 to monitor the horizontal state of the graphite boat body 1 and the rectangular base frame 2 in real time. In actual use, the graphite boat body 1 is assembled with the rectangular base frame 2, and then the hydraulic cylinder 3 is operated to propel it downward until it extends into the interior of the connecting structure 403. During this process, a rotational force is applied to the connecting structure 403 in a predetermined direction, causing it to be removably mounted on the threaded column at the free end of the hydraulic cylinder 3. This completes the combination of the hydraulic cylinder 3 and the lifting auxiliary assembly 4. When the hydraulic cylinder 3 is subsequently retracted, it drives the rectangular base frame 2 and the graphite boat body 1 upward. With the cooperation of a transfer device external to the hydraulic cylinder 3, the rectangular base frame 2 and the graphite boat body 1 can be loaded and unloaded.
[0020] Among them, by combining the hydraulic cylinder 3 and the lifting slider 402, the rectangular bottom frame 2 with the graphite boat body 1 can be smoothly lifted and lowered by the linear thrust of the hydraulic cylinder 3, avoiding the shaking or tilting caused by inertia in conventional lifting, and preventing the graphite boat body 1 from being damaged due to forced vibration.
[0021] Specifically, the graphite boat body 1 is provided with slots 101 on both the front and rear sides, and the inner front and rear walls of the rectangular base frame 2 are provided with buckles 201. When the graphite boat body 1 is embedded in the rectangular base frame 2, the buckles 201 extend into the slots 101. The buckles 201 consist of an elastic base 2011 and a butt joint 2012 slidably connected within the elastic base 2011. The portion of the butt joint 2012 extending from the elastic base 2011 is semi-cylindrical. The spacing between the two elastic bases 2011 arranged axially in the front and rear directions corresponds to the front-to-back width of the graphite boat body 1. This ensures that when the graphite boat body 1 is installed in the rectangular base frame 2, it can function as a front-to-back limiter for the graphite boat body 1. When the graphite boat body 1 is aligned and then installed into the rectangular bottom frame 2, the upper curved surface of the docking joint will be subjected to an extrusion force, prompting it to be retracted into the elastic holder until the bottom of the graphite boat body 1 is in contact with the bottom wall of the rectangular bottom frame 2 and the slot 101 is at the same height as the docking joint. The extrusion force on the docking joint is then released, and the docking joint returns to its original shape under the restoring action of the spring in the elastic holder, extending into the slot 101, which can effectively prevent the entire graphite boat body 1 from shaking or shifting left and right during loading and unloading.
[0022] Example 2 Following the above embodiment 1, in order to facilitate the rotation of the connecting structure 403 when the hydraulic cylinder 3 and the lifting slider 402 are combined, as shown in FIG. Figures 1-4 As shown, the connection structure 403 consists of a threaded collar 4031 and a stop collar 4032 fixedly mounted on the middle surface of the threaded collar 4031. The height of the threaded collar 4031 matches the thickness of the lifting slider 402. The top surface of the lifting slider 402 is provided with a through slot adapted to fit the connection structure 403. As can be seen, the stop collar 4032 can only rotate circumferentially within the lifting slider 402 and cannot move up and down, thus ensuring the stability of the entire connection structure 403 and lifting slider 402 combination. An inner groove 4021 is provided on the front of the lifting slider 402, and the inner groove 4021 is communicated with the through groove. The distance between the central axis of the limiting collar 4032 and the front of the rectangular block is smaller than the radius of the limiting collar 4032. Therefore, the edge of the limiting collar 4032 can pass through the inner groove 4021. Therefore, by applying a rotational force to the limiting collar 4032 along the outer side of the inner groove 4021, the threaded collar 4031 can be driven to rotate relative to the through groove on the lifting slider 402 and the threaded column at the free end of the hydraulic cylinder 3, thereby facilitating the assembly and disassembly between the hydraulic cylinder 3 and the lifting slider 402.
[0023] Example 3 like Figure 2As shown, the inner wall of the lifting guide rail 401 is provided with a slot 4011 on both sides. The lifting slider 402 is composed of a rectangular block and cylindrical bodies extending from either side of the rectangular block into the slots 4011. The diameter of the cylindrical bodies matches the front-to-back inner width of the slots 4011. The arrangement of the slots 4011 ensures that, as the hydraulic cylinder 3 contracts upward to drive the lifting slider 402 upward, the rectangular base frame 2 containing the graphite boat body 1 can only be driven upward by the continued contraction of the hydraulic cylinder 3 after the cylindrical bodies in the lifting slider 402 contact the top wall of the slots 4011. This arrangement ensures that the rectangular base frame 2 begins to move upward only after the lifting slider 402 has risen into position, avoiding initial uneven force or displacement deviation caused by direct drive from the hydraulic cylinder 3. Furthermore, the movement of the lifting slider 402 within the slots 4011 automatically corrects the posture of the rectangular base frame 2, ensuring that the rectangular base frame 2 remains strictly parallel during its ascent, reducing the risk of stress damage to the graphite boat body 1 caused by tilting.
[0024] Under normal circumstances, when the rectangular base frame 2 is directly driven upward, the impact force generated by the hydraulic cylinder 3 upon activation directly acts on the rectangular base frame 2 and the graphite boat body 1. Because the graphite boat body 1 is typically delicate and fragile, this impact force could loosen or damage the internal structure of the graphite boat body 1, or damage the connection between the rectangular base frame 2 and the graphite boat body 1. However, by first driving the lifting slider 402, a buffering process occurs before the top of the lifting slider 402 contacts the top wall of the slide 4011. This effectively reduces the impact of the impact force on the rectangular base frame 2 and the graphite boat body 1, reducing the risk of damage to both.
[0025] In addition, the setting of the slide groove 4011 provides a fault tolerance space for the hydraulic cylinder 3 to pause the operation during the propulsion process when cooperating with the transfer equipment and the hydraulic cylinder 3 to control the lowering height of the rectangular bottom frame 2 containing the graphite boat body 1.
[0026] Example 4 like Figure 2 As shown, a magnetic sheet 4012 is embedded in the rear wall of the lifting guide rail 401, and the connecting structure 403 is made of iron. The thickness of the rectangular block matches the front-to-back depth of the recessed portion of the lifting guide rail 401. When the rectangular base frame 2 is stored in a set position, the lifting slider 402 can be moved upward, and the magnetic sheet 4012 attracts the connecting structure 403, maintaining its vertical arrangement. This eliminates any protruding portion from the outside of the rectangular base frame 2, thus reducing the space occupied by the rectangular base frame 2 with the graphite boat body 1 when stored.
[0027] Example 5 like Figure 1 and Figure 5As shown, the positioning assembly 5 includes a positioning block 501 mounted in the middle of the front of the rectangular base frame 2. An electronic level 502 is mounted on the front of the positioning block 501. An indicator 503 is mounted on the top surface of the positioning block 501. The indicator 503 is wirelessly connected to the electronic level 502. The indicator 503 can be any one of an indicator light and an audible alarm. The electronic level 502 contains a controller. In actual use, when the electronic level 502 detects that the positioning block 501 is in a horizontal state, the internal controller controls the indicator 503 to issue a prompt 1, indicating that the positioning block 501 is in the correct position and the graphite boat body 1 can be loaded and unloaded. When the electronic level 502 detects that the positioning block 501 is offset, the controller controls the indicator 503 to issue a prompt 2, reminding the operator that the positioning block 501 is not in a horizontal state and needs to be adjusted, thereby ensuring the accuracy and safety of the loading and unloading process.
[0028] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A solar cell self-loading and unloading graphite boat device, comprising a rectangular bottom frame (2) equipped with a graphite boat body (1) and a hydraulic cylinder (3), characterized in that: A lifting auxiliary component (4) is embedded in the surface of the rectangular bottom frame (2), and a positioning component (5) is embedded in the middle of the front of the rectangular bottom frame (2). The positioning component (5) is used to monitor the horizontal state of the graphite boat body (1) and the rectangular bottom frame (2) in real time; The lifting auxiliary component (4) comprises a lifting guide rail (401) detachably mounted on a concave portion of the surface of the rectangular bottom frame (2); a lifting slider (402) is slidably mounted on the lifting guide rail (401); a connecting structure (403) is rotatably engaged inside the lifting slider (402); and the connecting structure (403) is detachably connected to the free end of the hydraulic cylinder (3).
2. The solar cell self-loading and unloading graphite boat device according to claim 1, characterized in that: The connection structure (403) is composed of a threaded collar (4031) and a limiting collar (4032) fixedly sleeved on the middle surface of the threaded collar (4031). The height of the threaded collar (4031) is consistent with the thickness of the lifting slider (402).
3. The solar cell self-loading and unloading graphite boat device according to claim 1, characterized in that: Slide grooves (4011) are provided on both sides of the inner wall of the lifting guide rail (401), and both sides of the lifting slider (402) extend to the interior of the slide grooves (4011).
4. The solar cell self-loading and unloading graphite boat device according to claim 1, characterized in that: A magnetic sheet (4012) is embedded in the rear wall of the lifting guide rail (401), and the connecting structure (403) is made of iron. The thickness of the rectangular block is consistent with the front and rear depth of the recessed portion of the lifting guide rail (401).
5. The solar cell self-loading and unloading graphite boat device according to claim 1, characterized in that: The top surface of the lifting slider (402) is provided with a through groove adapted to fit the connecting structure (403), the front surface of the lifting slider (402) is provided with an inner groove (4021), and the inner groove (4021) and the through groove are communicated with each other, and the distance between the central axis of the limiting collar (4032) and the front surface of the rectangular block is smaller than the radius of the limiting collar (4032).
6. The solar cell self-loading and unloading graphite boat device according to claim 1, characterized in that: The positioning assembly (5) comprises a positioning block (501) mounted in the middle of the front of the rectangular bottom frame (2), an electronic level (502) mounted on the front of the positioning block (501), an indicator (503) mounted on the top surface of the positioning block (501), and the indicator (503) is wirelessly connected to the electronic level (502).
7. The solar cell self-loading and unloading graphite boat device according to claim 1, characterized in that: The front and rear sides of the graphite boat body (1) are both provided with card slots (101), and the inner front wall and the inner rear wall of the rectangular bottom frame (2) are both provided with buckles (201). When the graphite boat body (1) is embedded in the rectangular bottom frame (2), the buckles (201) extend into the card slots (101).
8. The solar cell self-loading and unloading graphite boat device according to claim 7, characterized in that: The buckle (201) is composed of an elastic clamping seat (2011) and a docking head (2012) slidably connected in the elastic clamping seat (2011), and the portion of the docking head (2012) extending out of the elastic clamping seat (2011) is semi-cylindrical, and the spacing between the two elastic clamping seats (2011) arranged axially in the front and rear directions is consistent with the front and rear width of the graphite boat body (1).