Crystalline silicon feeding bin
By designing the frame and limiting structure of the crystalline silicon feeding hopper, the problems of low efficiency and high cost of crystalline silicon feeding were solved, realizing continuous feeding and low-cost automated production, reducing equipment and labor costs, and reducing crystalline silicon pollution.
Patent Information
- Application Number
- CN202520617658.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing technologies have low efficiency in feeding crystalline silicon, manual operation is inefficient and costly, and is prone to contamination and damage to crystalline silicon. Robotic feeding equipment is also expensive.
Design a crystalline silicon feeding bin, comprising a frame and a limiting component. The frame is provided with multiple feeding slots, and the limiting component can be rotatably engaged with the limiting slot. The position of the limiting component is controlled by an elastic component to ensure the stability of the crystalline silicon and prevent it from falling off.
It achieves continuous material supply, improves the efficiency of crystalline silicon feeding, reduces equipment and labor costs, reduces crystalline silicon pollution, is suitable for automated production lines, and has a simple structure and low price.
Smart Images
Figure CN223851704U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic manufacturing equipment technical field especially relates to a kind of crystalline silicon feeding bin. BACKGROUND
[0002] In the production process of solar cell, coating equipment needs to be used to coat crystalline silicon, so that crystalline silicon needs to be transferred to coating equipment.In prior art, manual feeding is used, which not only has low efficiency, but also increases production cost and reduces the yield of solar cell, and also easily pollutes and damages crystalline silicon, resulting in the decline of the quality of solar cell.With the increasing demand for solar cell, people later use robot to feed by suction cup, as the price of robot is high, which increases equipment cost and further increases production cost. SUMMARY
[0003] The utility model discloses a kind of crystalline silicon feeding bin, not only can realize continuous feeding, to improve the feeding efficiency of crystalline silicon, and cheap, to reduce equipment cost.
[0004] The utility model discloses the purpose that the following technical scheme is adopted to realize:
[0005] A kind of crystalline silicon feeding bin, comprising:
[0006] Frame, the frame includes fixed bottom plate and two limiting side plates, two The limiting side plates are respectively close to the opposite sides of the fixed bottom plate Setting, the opposite side of two The limiting side plates is provided with a plurality of discharge slots, the discharge slot is used to carry crystalline silicon, the front end of the frame is the feeding inlet of the crystalline silicon feeding bin;
[0007] First limiting part, the first limiting part has opposite first end and second end and the main part of connecting the first end and the second end, the limiting side plate is provided with first installation hole and second installation hole, the first end and the second end of the first limiting part are respectively rotatable with the first installation hole and the second installation hole Connection, to make the first limiting part can be rotated to the feeding inlet;
[0008] Among them, the side where the limiting side plate sets the second installation hole is also provided with a limiting clamping groove, the first installation hole is provided with elastic member, the first end of the first limiting part is abutted on the elastic member and is subjected to the elastic force of the elastic member, to make the first limiting part clamping in the limiting clamping groove, when the elastic member is compressed, the first limiting part can be separated from the limiting clamping groove, to make the first limiting part can be rotated.
[0009] Preferably, the limiting slot comprises a first limiting slot and a second limiting slot, when the first limiting member is located at the first rotating position, the first limiting member is clamped in the first limiting slot; when the first limiting member is located at the second rotating position, the first limiting member is clamped in the second limiting slot.
[0010] Preferably, the first end of the first limiting member comprises a first rotating segment and a first connecting segment, at least part of the first rotating segment is installed in the first mounting hole, and the first rotating segment is connected with the main body through the first connecting segment.
[0011] The second end of the first limiting member comprises a second rotating segment and a second connecting segment, at least part of the second rotating segment is installed in the second mounting hole, and the second rotating segment is connected with the main body through the second connecting segment, and at least part of the second connecting segment can be clamped in the limiting slot.
[0012] Preferably, a detection part is arranged on the first limiting member, and the size of the detection part is greater than the size of other positions of the first limiting member.
[0013] Preferably, the frame further comprises an upper fixed plate, the upper fixed plate is arranged opposite to the fixed bottom plate, and the upper fixed plate is connected with the limiting side plate away from the fixed bottom plate.
[0014] Preferably, a detection hole is arranged on the upper fixed plate, the detection hole is used for installing a sensor, and the sensor is used for detecting the state of the crystalline silicon in the crystalline silicon feeding bin; or,
[0015] The detection hole is used for detecting the state of the crystalline silicon in the crystalline silicon feeding bin by the sensor.
[0016] Preferably, a second limiting member is further arranged, the second limiting member is arranged at the rear end of the frame, and the two ends of the second limiting member are respectively connected with the fixed bottom plate and the upper fixed plate.
[0017] Preferably, a handle is further arranged, the handle is arranged on the limiting side plate; and / or,
[0018] The handle is arranged on the upper fixed plate.
[0019] Preferably, the discharge grooves on the two limiting side plates are symmetrically distributed, scale marks are arranged on the two limiting side plates, and the scale marks are arranged one by one corresponding to the discharge grooves.
[0020] Preferably, the limiting side plate has opposite upper and lower ends, the first mounting hole is arranged at the upper end of the limiting side plate, and the second mounting hole is arranged at the lower end of the limiting side plate; or,
[0021] The first mounting hole is arranged at the lower end of the limiting side plate, and the second mounting hole is arranged at the upper end of the limiting side plate.
[0022] The number of the first limiting members is one or more, when the number of the first limiting members is one, the first limiting member is arranged on one of the two limiting side plates.
[0023] When the number of the first limiting members is more than one, at least one first limiting member is arranged on each limiting side plate.
[0024] Compared with the prior art, the beneficial effects of the present application at least include:
[0025] The crystal silicon feeding bin of the present application can carry multiple crystal silicon through the multiple discharge grooves arranged on the limiting side plate, which can not only realize continuous feeding to improve the feeding efficiency of crystal silicon, but also can be used with an automatic production line to improve the production efficiency, reduce the use of manpower, reduce labor costs and reduce personnel contact with crystal silicon to pollute the crystal silicon. Moreover, the crystal silicon feeding bin has a simple structure, low price and small size, thereby reducing equipment costs and reducing the occupied space. The first limiting member can be rotated to the feeding inlet to prevent the crystal silicon from falling off the crystal silicon feeding bin, and the elastic member controls the first limiting member to be clamped in or separated from the limiting clamping groove, so that the first limiting member can be rotated or not rotated to avoid the first limiting member from shaking and to ensure the stability of the position of the first limiting member and avoid the first limiting member from interfering with other components. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a three-dimensional structural schematic diagram of the crystal silicon feeding bin of the embodiment of the present application
[0027] Figure 2 is a partial exploded schematic diagram of the crystal silicon feeding bin of the embodiment of the present application.
[0028] Figure 3 is a planar structural schematic diagram of the first perspective of the crystal silicon feeding bin of the embodiment of the present application.
[0029] Figure 4 is a planar structural schematic diagram of the second perspective of the crystal silicon feeding bin of the embodiment of the present application.
[0030] Figure 5 is a planar structural schematic diagram of the third perspective of the crystal silicon feeding bin of the embodiment of the present application.
[0031] Figure 6 is a three-dimensional structural schematic diagram of the first limiting member and the elastic member in the embodiment of the present application.
[0032] Figure 7 is the plane structure schematic view of the limiting side plate in the embodiment of the utility model.
[0033] In the drawing: 100, crystalline silicon feeding bin; 1, frame; 11, fixed bottom plate; 12, limiting side plate; 121, discharge groove; 122, upper end; 1221, first mounting hole; 123, lower end; 1231, second mounting hole; 124, limiting clamping groove; 1241, first limiting clamping groove; 1242, second limiting clamping groove; 125, scale mark; 13, upper fixed plate; 131, detection hole; 14, front end; 15, rear end; 16, left side; 17, right side; 18, feeding inlet; 2, first limiting piece; 21, first end; 211, first rotating section; 212, first connecting section; 22, second end; 221, second rotating section; 222, second connecting section; 23, main body part; 24, detection part; 3, elastic piece; 4, second limiting piece; 5, handle; 200, crystalline silicon. DETAILED DESCRIPTION
[0034] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and fully convey the inventive aspects of example implementations to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and description of the same or similar elements can be omitted.
[0035] The words expressing position and direction described in the utility model are all explained by taking the drawings as examples, but changes can also be made according to needs, and the changes made are all included in the protection scope of the utility model.
[0036] Referring to Figures 1 to 7 The utility model provides a kind of crystalline silicon feeding bin 100, comprising: frame 1 and first limiting piece 2, crystalline silicon 200 can be placed in frame 1, first limiting piece 2 can be set in frame 1, first limiting piece 2 can prevent crystalline silicon 200 from falling off from frame 1.
[0037] Specifically, referring to Figures 1 to 5, the frame 1 can have opposite front end 14 and rear end 15, the front end 14 of the frame 1 is the feeding inlet of the crystalline silicon feeding bin 100, that is, the crystalline silicon 200 can enter the frame 1 from the feeding inlet, and the crystalline silicon 200 can also exit the frame 1 through the feeding inlet 18. The frame 1 can include a fixed bottom plate 11 and two limiting side plates 12, the fixed bottom plate 11 and the limiting side plates 12 can both be quadrangular, and the two limiting side plates 12 can be respectively arranged near opposite sides of the fixed bottom plate 11, that is, the two limiting side plates 12 are arranged on the left side 16 and the right side 17 of the frame 1. The facing side of the two limiting side plates 12 is provided with a plurality of discharge grooves 121 for carrying the crystalline silicon 200. One crystalline silicon feeding bin 100 can carry a plurality of crystalline silicon 200, which not only can realize continuous feeding, thereby improving the feeding efficiency of the crystalline silicon 200, but also can be used with an automatic production line, thereby improving the production efficiency, reducing the use of manpower, reducing labor costs and reducing personnel contact with the crystalline silicon 200 to pollute the crystalline silicon 200. In addition, the crystalline silicon feeding bin 100 has simple structure, low price and small size, thereby reducing equipment cost and reducing occupied space.
[0038] The number of discharge grooves 121 on the two limiting side plates 12 is preferably the same, and the discharge grooves 121 on the two limiting side plates 12 are symmetrically distributed, that is, the discharge grooves 121 on the two limiting side plates 12 are one-to-one corresponding and in the same horizontal plane. In this way, when the crystalline silicon 200 is placed in the discharge groove 121, it can ensure that the crystalline silicon 200 remains horizontal, thereby preventing the crystalline silicon 200 from being stuck.
[0039] As a preferred mode, referring to Figure 5 , the two limiting side plates 12 can be provided with scale marks 125, the scale marks 125 are one-to-one corresponding to the discharge grooves 121, and the scale marks 125 are, for example, numbers. The number and arrangement position of the scale marks 125 on the two limiting side plates 12 are the same. When the crystalline silicon 200 is placed in the discharge groove 121, the scale marks 125 corresponding to the discharge grooves 121 on both sides of the crystalline silicon 200 are the same, which can prevent the two sides of the crystalline silicon 200 from being in different horizontal planes, thereby preventing the crystalline silicon 200 from being stuck. The scale marks 125 can be arranged on the outside of the limiting side plate 12 for easy observation by personnel.
[0040] Referring to Figure 6 , the first limiting piece 2 can have opposite first end 21 and second end 22 and main body 23 connecting the first end 21 and the second end 22, and the first limiting piece 2 can be rod-shaped, for example, cylindrical, which can reduce the volume and weight of the first limiting piece 2, thereby reducing the volume and weight of the crystalline silicon feeding bin 100. Referring to Figure 2 、 Figure 7The first limiting member 2 can be provided with a first mounting hole 1221 and a second mounting hole 1231, which are, for example, round holes. The first end 21 and the second end 22 of the first limiting member 2 can be mounted in the first mounting hole 1221 and the second mounting hole 1231, respectively. The first end 21 and the second end 22 of the first limiting member 2 can be rotatably connected to the first mounting hole 1221 and the second mounting hole 1231, respectively, so that the first limiting member 2 can be rotated to the feeding inlet, thereby preventing the crystalline silicon 200 from falling out of the crystalline silicon feeding bin 100.
[0041] The number of the first limiting member 2 can be one or more. When the number of the first limiting member 2 is one, the first limiting member 2 can be provided on one of the two limiting side plates 12, i.e., the first limiting member 2 is provided on the limiting side plate 12 located on the left side 16 of the frame 1, or the first limiting member 2 is provided on the limiting side plate 12 located on the right side 17 of the frame 1. When the number of the first limiting member 2 is more than one, at least one first limiting member 2 is provided on each limiting side plate 12. For reference Figure 1 、 Figure 2 In this embodiment, the number of the first limiting member 2 can be two, and the two first limiting members 2 can be provided on the two limiting side plates 12, respectively. The two first limiting members 2 can better limit the position of the crystalline silicon 200, so that the position of the crystalline silicon 200 is more stable, thereby preventing the crystalline silicon 200 from falling out of the frame 1.
[0042] As a preferred mode, for reference Figure 6 The first limiting member 2 can be provided with a detection portion 24, and the size of the detection portion 24 can be greater than that of other positions of the first limiting member 2. The detection portion 24 can be used in cooperation with a detection device (not shown) on the production line. The detection device can detect the position of the detection portion 24, thereby confirming the position of the first limiting member 2, to confirm whether the first limiting member 2 is open, and further prevent damage to the crystalline silicon 200 or other equipment due to misoperation. For example, when the first limiting member 2 is located at the feeding inlet, the first limiting member 2 is in a closed state, and at this time, the crystalline silicon 200 cannot be removed from the frame 1, i.e., the coating equipment cannot be fed. When the first limiting member 2 is located on the left and right sides of the frame 1, the first limiting member 2 is in an open state, and at this time, the crystalline silicon 200 can be removed from the frame 1, i.e., the coating equipment can be fed.
[0043] For reference Figure 2 、 Figure 6The side limiting plate 12 can be provided with a limiting slot 124 on one side of the second mounting hole 1231. The first mounting hole 1221 can be provided with an elastic member 3 between the side limiting plate 12 and the first end 21 of the first limiting member 2. The elastic member 3 can be a spring, for example. The elastic member 3 can provide an elastic force. The first end 21 of the first limiting member 2 abuts against the elastic member 3 and is subjected to the elastic force of the elastic member 3. The first limiting member 2 is clamped in the limiting slot 124. At this time, the first limiting member 2 cannot rotate, i.e., the position of the first limiting member 2 is fixed. Thus, the first limiting member 2 can be prevented from shaking, interference between the first limiting member 2 and other devices can be avoided, and interference between the first limiting member 2 and the crystalline silicon 200 when the crystalline silicon 200 is moved into or out of the frame 1 can be prevented. When the elastic member 3 is compressed, the first limiting member 2 can move away from the limiting slot. The first limiting member 2 can be disengaged from the limiting slot 124. Thus, the first limiting member 2 can be rotated to a predetermined position.
[0044] As a preferred mode, refer to Figure 2 、 Figure 6 、 Figure 7 The side limiting plate 12 can have opposite upper and lower ends 122 and 123. The first mounting hole 1221 can be arranged at the upper end 122 of the side limiting plate 12, and the second mounting hole 1231 can be arranged at the lower end 123 of the side limiting plate 12. Alternatively, the first mounting hole 1221 can be arranged at the lower end 123 of the side limiting plate 12, and the second mounting hole 1231 can be arranged at the upper end 122 of the side limiting plate 12. In the present embodiment, the first mounting hole 1221 is arranged at the upper end 122 of the side limiting plate 12, and the second mounting hole 1231 is arranged at the lower end 123 of the side limiting plate 12 in the direction of gravity. In this way, only a downward force needs to be applied to the first limiting member 2 to disengage the first limiting member 2 from the limiting slot 124. Thus, the operation is facilitated.
[0045] In the present application, by setting a plurality of discharge grooves 121 on the limiting side plate 12, one crystal silicon feeding bin 100 can carry multiple crystal silicon 200, which not only can realize continuous feeding, thereby improving the feeding efficiency of the crystal silicon 200, and can be used with an automatic production line, thereby improving the production efficiency, and can reduce the use of manpower, can reduce labor costs and reduce personnel contact with the crystal silicon 200 to pollute the crystal silicon 200, and the structure of the crystal silicon feeding bin 100 is simple, cheap and small in size, thereby reducing the equipment cost and reducing the occupied space. By setting the first limiting piece 2, the first limiting piece 2 can be rotated to the feeding inlet, thereby preventing the crystal silicon 200 from falling off from the crystal silicon feeding bin 100, and the elastic piece 3 controls the first limiting piece 2 to be clamped in the limiting clamping groove 124 or separated from the limiting clamping groove 124, so that the first limiting piece 2 can be rotated or not rotated, avoiding the first limiting piece 2 from shaking, thereby ensuring the stability of the position of the first limiting piece 2, and avoiding the first limiting piece 2 from interfering with other components.
[0046] In a specific embodiment, referring to Figure 7 , the limiting clamping groove 124 can be generally L-shaped, and the limiting clamping groove 124 can include a first limiting clamping groove 1241 and a second limiting clamping groove 1242. When the first limiting piece 2 is located at the first rotating position, the first limiting piece 2 can be clamped in the first limiting clamping groove 1241; when the first limiting piece 2 is located at the second rotating position, the first limiting piece 2 can be clamped in the second limiting clamping groove 1242. When the first limiting piece 2 exerts a force on the elastic piece 3 to compress the elastic piece 3, the first limiting piece 2 can be separated from the limiting clamping groove 124, and the first limiting piece 2 can be switched back and forth between the first rotating position and the second rotating position, that is, the first limiting piece 2 can be rotated from the first rotating position to the second rotating position, or the first limiting piece 2 can be rotated from the second rotating position to the first rotating position.
[0047] As an example, when the first limiting piece 2 is located at the first rotating position, the first limiting piece 2 can be located on the left and right sides of the frame 1, at which time the crystal silicon 200 can be put into the frame 1 or removed from the frame 1. When the first limiting piece 2 is located at the second rotating position, the first limiting piece 2 can be located at the front end 14 of the frame 1, that is, the first limiting piece 2 can be located at the feeding inlet, and the first limiting piece 2 can prevent the crystal silicon 200 from falling off from the frame 1. Especially when the crystal silicon feeding bin 100 is moving or shaking, the first limiting piece 2 can prevent the crystal silicon 200 from falling off from the frame 1.
[0048] As a preferred mode, referring to Figure 6The first end 21 of the first limiting piece 2 can include a first rotating segment 211 and a first connecting segment 212, which can be arranged in an L shape. At least part of the first rotating segment 211 can be mounted in the first mounting hole 1221, and an end of the first rotating segment 211 away from the first connecting segment 212 can abut against the elastic piece 3. The first rotating segment 211 can be connected to the main body 23 through the first connecting segment 212. In some embodiments, at least part of the elastic piece 3 can also be sleeved on the first rotating segment 211, and an end of the elastic piece 3 away from the bottom of the first mounting hole 1221 can abut against the first connecting segment 212.
[0049] The second end 22 of the first limiting piece 2 can include a second rotating segment 221 and a second connecting segment 222, which can be arranged in an L shape. At least part of the second rotating segment 221 can be mounted in the second mounting hole 1231, and the second rotating segment 221 can be connected to the main body 23 through the second connecting segment 222. At least part of the second connecting segment 222 can be clamped in the limiting clamping groove 124. That is, when the first limiting piece 2 is located at the first rotating position, the second connecting segment 222 can be clamped in the first limiting clamping groove 1241; when the first limiting piece 2 is located at the second rotating position, the second connecting segment 222 can be clamped in the second limiting clamping groove 1242.
[0050] In a specific embodiment, referring to Figure 1 , Figure 2 The frame 1 can further include an upper fixed plate 13, which can be in a quadrilateral shape as a whole. The upper fixed plate 13 can be arranged opposite to the fixed bottom plate 11 and connected to the limiting side plate 12 away from the fixed bottom plate 11. The upper fixed plate 13 can further fix the limiting side plate 12 to ensure the stability of the position of the two limiting side plates 12 and ensure that the two limiting side plates 12 are arranged in parallel relative to each other, thereby ensuring that the distance between the discharge grooves 121 on the two limiting side plates 12 remains consistent and prevents the discharge grooves 121 from being blocked. In addition, the upper fixed plate 13 can also increase the overall structural strength of the frame 1 and prolong the service life of the frame 1.
[0051] Referring to Figure 1 , Figure 2 , Figure 4A detection hole 131 can be arranged on the upper fixed plate 13, the detection hole 131 is used to install a sensor, the sensor is used to detect the state of the crystalline silicon 200 in the crystalline silicon feeding bin 100. The sensor can also be a sensor on the production line, that is, the sensor is independent of the crystalline silicon feeding bin 100, and the detection hole 131 is used for the sensor to detect the state of the crystalline silicon 200 in the crystalline silicon feeding bin 100. The number of detection holes 131 can be one or more, and multiple detection holes 131 can not only improve the detection accuracy, but also ensure the effectiveness of the detection when one or more sensors fail.
[0052] The sensor can detect whether the crystalline silicon 200 in the crystalline silicon feeding bin 100 is crystalline silicon 200, so as to confirm whether the crystalline silicon 200 is used up, so as to timely remind personnel to replace the crystalline silicon feeding bin 100. In some embodiments, the sensor can also detect whether the crystalline silicon 200 located in the crystalline silicon feeding bin 100 is in a horizontal plane, so as to prevent the crystalline silicon 200 from being damaged due to material jamming.
[0053] As a preferred mode, referring to Figure 3 The crystalline silicon feeding bin 100 can further include a second limiting piece 4, the second limiting piece 4 can be arranged on the rear end 15 of the frame 1, and the two ends of the second limiting piece 4 can be connected with the fixed bottom plate 11 and the upper fixed plate 13 respectively. The first limiting piece 2 and the second limiting piece 4 limit the two ends of the crystalline silicon 200 respectively, the first limiting piece 2 can prevent the crystalline silicon 200 from falling off from the front end 14 of the frame 1, and the second limiting piece 4 can prevent the crystalline silicon 200 from falling off from the rear end 15 of the frame 1, the two limiting side plates 12 limit the crystalline silicon 200 on the left and right sides of the frame 1, and the crystalline silicon feeding bin 100 limits the crystalline silicon 200 from four directions. After all the crystalline silicon 200 is stored, the frame 1 can be inclined to the rear end 15, so that all the crystalline silicon 200 at the rear end 15 is in contact with the second limiting piece 4, and the crystalline silicon 200 in the crystalline silicon feeding bin 100 is ensured to be neat and tidy, and material jamming is prevented due to deflection.
[0054] The second limiting piece 4 can be in the shape of a rod as a whole, for example, a cylindrical shape, so as to reduce the volume and weight of the second limiting piece 4, thereby reducing the volume and weight of the crystalline silicon feeding bin 100. The number of second limiting pieces 4 can be one or more, and in this embodiment, the number of second limiting pieces 4 can be one.
[0055] Referring to Figures 1 to 4 The crystalline silicon feeding bin 100 can further include a handle 5, the handle 5 can be arranged on the limiting side plate 12, and the handle 5 can also be arranged on the upper fixed plate 13. The handle 5 is convenient for personnel to carry the crystalline silicon feeding bin 100. The number of handles 5 can be one or more, and in this embodiment, the number of handles 5 is two, and the two handles 5 can be arranged on the two limiting side plates 12 respectively.
[0056] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model without departing from the principles and purposes of the utility model, and all these changes should belong to the protection scope of the utility model claim.
Claims
1. A crystalline silicon feed bin, characterized by, The utility model relates to a kind of crystal silicon feeding device, including: Frame, the frame includes fixed bottom plate and two limiting side plates, two The limiting side plate is close to the opposite sides of the fixed bottom plate respectively Setting, the side of two limiting side plates is opposite each other It is provided with a plurality of material discharge grooves for carrying crystal silicon, the front end of the frame is the feeding inlet of the crystal silicon feeding bin; First limiting piece, the first limiting piece has opposite first end and second end and the main part of connecting the first end and the second end, the limiting side plate is provided with first installation hole and second installation hole, the first end and the second end of the first limiting piece are rotatably connected with the first installation hole and the second installation hole respectively, so that the first limiting piece can be rotated to the feeding inlet; Wherein, the side of the limiting side plate provided with the second installation hole is further provided with a limiting clamping groove, the first installation hole is provided with an elastic member, the first end of the first limiting piece is abutted on the elastic member and is subjected to the elastic force of the elastic member, so that the first limiting piece is clamped in the limiting clamping groove, when the elastic member is compressed, the first limiting piece can be separated from the limiting clamping groove, so that the first limiting piece can be rotated.
2. The crystalline silicon feed bin of claim 1, wherein, The limiting clamping groove includes a first limiting clamping groove and a second limiting clamping groove, when the first limiting piece is located at a first rotating position, the first limiting piece is clamped in the first limiting clamping groove, when the first limiting piece is located at a second rotating position, the first limiting piece is clamped in the second limiting clamping groove.
3. The crystalline silicon feed bin of claim 1, wherein, The first end of the first limiting piece includes a first rotating segment and a first connecting segment, at least part of the first rotating segment is installed in the first installation hole, and the first rotating segment is connected with the main part through the first connecting segment. The second end of the first limiting piece includes a second rotating segment and a second connecting segment, at least part of the second rotating segment is installed in the second installation hole, and the second rotating segment is connected with the main part through the second connecting segment, and at least part of the second connecting segment can be clamped in the limiting clamping groove.
4. The crystalline silicon feed bin of claim 1, wherein, The first limiting piece is provided with a detection part, and the size of the detection part is greater than the size of other positions of the first limiting piece.
5. The crystalline silicon feed bin of claim 1, wherein, The frame further includes an upper fixed plate, the upper fixed plate is arranged opposite to the fixed bottom plate, and the upper fixed plate is connected with the side of the limiting side plate away from the fixed bottom plate.
6. The crystalline silicon feed bin of claim 5, wherein, The upper fixed plate is provided with a detection hole, the detection hole is used for installing a sensor, and the sensor is used for detecting the state of crystal silicon in the crystal silicon feeding bin. The detection hole is used for detecting the state of crystal silicon in the crystal silicon feeding bin by a sensor.
7. The crystalline silicon feed bin of claim 5, wherein, Further including a second limiting piece, the second limiting piece is arranged at the rear end of the frame, and the two ends of the second limiting piece are connected with the fixed bottom plate and the upper fixed plate respectively.
8. The crystalline silicon feed bin of claim 5, wherein, Further including a handle, the handle is arranged on the limiting side plate, and / or The handle is arranged on the upper fixed plate.
9. The crystalline silicon feed bin of claim 1, wherein, The material discharge grooves on the two limiting side plates are symmetrically distributed, and scale marks are arranged on the two limiting side plates, and the scale marks are arranged one by one corresponding to the material discharge grooves.
10. The crystalline silicon feed bin of claim 1, wherein, The limiting side plate has opposite upper and lower ends, the first mounting hole is arranged at the upper end of the limiting side plate, and the second mounting hole is arranged at the lower end of the limiting side plate; or The first mounting hole is arranged at the lower end of the limiting side plate, and the second mounting hole is arranged at the upper end of the limiting side plate; The number of the first limiting members is one or more, when the number of the first limiting members is one, the first limiting member is arranged on one of the two limiting side plates; When the number of the first limiting members is more than one, at least one first limiting member is arranged on each limiting side plate.