Conveying device for water quenching stage of polycrystalline silicon

Abstract

The utility model relates to the technical field of polycrystalline silicon production, in particular to a conveying device for a polycrystalline silicon water quenching stage, which comprises a rack, a conveying mechanism and two groups of lifting components, and the conveying mechanism comprises a driving component, a driving wheel, a driven wheel and a conveying belt. Each lifting assembly comprises a driving piece, a supporting frame body and two lifting supports. The lifting support is located on the side edge of the conveying belt and is close to the feeding end of the conveying belt or the discharging end of the conveying belt. An operation area defined by the conveying mechanism and the lifting support is staggered with the projection of the driving piece on the horizontal plane. The two lifting supports are connected with the supporting frame body, the supporting frame body is connected with the driving part, and the driving part is configured to drive the supporting frame body to move up and down and further drive the lifting supports to ascend and descend. By means of the conveying device, the problem that silicon rods are prone to falling off can be effectively solved, and the stability of silicon material operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon production, in particular to a conveying device used in the water quenching stage of polysilicon. Background Art

[0002] Silicon is an important semiconductor material. The silicon used in the electronics industry has high purity and excellent electrical and mechanical properties. It is also the semiconductor material with the largest output and the widest application.

[0003] Silicon ingots are typically processed using a crushing process, where they are broken down using a crusher. Prior to crushing, they are typically water-quenched to create a naturally fractured or easily fractured state. During the water-quenching process, particularly at the feed and discharge ends of the self-drying conveyor section at the end of the quenching process, a robot typically places the silicon ingots onto a conveyor belt, moving them along with the conveyor belt. Finally, the robot completes the transfer of the silicon ingots.

[0004] During this process, the silicon material rods are prone to fall, especially when they are placed on and taken off the conveyor belt. Summary of the Invention

[0005] In order to solve the above technical problems, the utility model proposes a conveying device for the polysilicon water quenching stage, which can effectively solve the problem of silicon material rods easily falling and improve the stability of silicon material operation.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A conveying device for the water quenching stage of polysilicon includes a frame and a conveying mechanism, wherein the conveying mechanism includes a driving assembly, a driving wheel, a driven wheel and a conveyor belt, and also includes two sets of lifting assemblies; each set of lifting assemblies includes a driving member, a support frame and two lifting brackets; the lifting brackets are located on the side of the conveyor belt and close to the feed end or the discharge end of the conveyor belt; the working area enclosed by the conveying mechanism and the lifting brackets is staggered with the projection of the driving member on the horizontal plane; the two lifting brackets are respectively connected to the support frame, and the support frame is connected to the driving member, and the driving member is configured to drive the support frame to move up and down, and further drive the lifting brackets to rise and fall.

[0008] The two lifting brackets in the same group are respectively arranged on both sides of the conveyor belt, and the distance between the two lifting brackets and the conveyor belt is the same.

[0009] The number of the conveying mechanisms is at least two groups, which are arranged in parallel.

[0010] The lifting bracket is located between the conveyor belts of two adjacent groups of conveying mechanisms.

[0011] All conveyor belts run synchronously.

[0012] The support frame and the frame are connected in a sliding manner through the cooperation of the guide rails and the sliders.

[0013] The projections of the guide rail and the sliding block on the horizontal plane are staggered with the projection of the working area on the horizontal plane.

[0014] The driving member is a cylinder.

[0015] A silicon material rod placement groove is provided on the upper surface of the lifting bracket, and a silicon material rod placement block matching the silicon material rod placement groove is provided on the conveyor belt.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the lifting bracket can be raised and lowered by the setting of the lifting component. When the silicon rod needs to be transported, the lifting bracket rises to the top of the conveying mechanism, and the manipulator places the silicon rod on the lifting bracket. The lifting bracket then descends to the bottom of the conveying mechanism, and the silicon rod on the lifting bracket can be smoothly transported to the conveying mechanism. When the silicon rod is transported to the discharge end of the conveying mechanism, the lifting bracket rises and lifts the silicon rod on the conveying mechanism, and the manipulator then transports the silicon rod that is separated from the conveying mechanism. The setting of the lifting component can ensure the stability of the silicon rod transportation process and reduce the risk of silicon rods falling. In addition, through this structural design, the production efficiency and the handover speed of silicon rods can be improved, and the waiting time and energy consumption in the production process are effectively reduced, thereby improving the overall production efficiency.

[0018] Furthermore, the working area enclosed by the conveying mechanism and the lifting bracket is staggered with the projection of the driving member on the horizontal plane, which can prevent the falling silicon material from getting stuck in the various structures of the driving member, avoid causing wear of the various components of the driving member, and increase the service life of the driving member.

[0019] Furthermore, the lifting mechanism has a simple structure. Compared with conventional structures, it reduces the number and complexity of moving parts, reduces the possibility of failure, and improves the reliability and stability of the equipment. It also reduces maintenance costs and downtime, while improving the long-term operating efficiency of the equipment.

[0020] 2. Two lifting brackets are respectively arranged on both sides of the conveying mechanism, and the distance between the two lifting brackets and the conveying mechanism is the same, so that the lifting brackets can be evenly distributed. When the silicon material rods are transferred from the lifting brackets to the conveying mechanism, the position of the silicon material rods on the conveying mechanism can be more balanced, thereby improving the stability of the silicon material rod transportation.

[0021] 3. There are at least two groups of the conveying mechanisms, which are arranged in parallel, so that the conveying mechanisms can support at least both ends of the silicon material rods, thereby improving the stability of the silicon material rod conveying.

[0022] 4. The lifting bracket is located between two adjacent groups of conveying mechanisms, and the structural layout is more reasonable, which facilitates the control of the position of the silicon material rods transferred to the conveying mechanism and improves the stability of the silicon material rod transportation.

[0023] 5. All conveyor belts operate synchronously to ensure the stability of the silicon rod conveying process.

[0024] 6. The support frame and the frame are connected by a sliding connection through the cooperation of the guide rail and the slider, which is convenient for improving the stability of the lifting bracket.

[0025] 7. The projection of the guide rail and slider on the horizontal plane is staggered with the projection of the working area on the horizontal plane to avoid silicon material being stuck between the guide rail and slider, causing wear of the guide rail and slider, and improving the continuous operation capability of the lifting assembly.

[0026] 8. Due to the positioning of the driver and the design of the supporting frame, the driver can be a single cylinder. Compared to traditional dual-cylinder drives, this significantly reduces mechanical misalignment and vibration, thereby improving the stability and accuracy of silicon material conveying. This ensures that the silicon rods maintain their proper position and orientation during transport, reducing damage to the silicon material and increased production costs caused by instability.

[0027] 9. The upper surface of the lifting bracket is provided with a silicon material rod placement groove, and the conveyor belt is provided with a silicon material rod placement block that matches the silicon material rod placement groove. By setting the silicon material rod placement groove and the silicon material rod placement block, the stability of the silicon material rods during transfer between the manipulator and the lifting bracket can be improved, and the stability of the silicon material rods during transfer between the lifting bracket and the conveyor belt can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0031] Markings in the figure:

[0032] 1. Frame, 2. Conveying mechanism, 3. Driving parts, 4. Support frame, 5. Lifting bracket, 6. Guide rail. DETAILED DESCRIPTION

[0033] Example 1

[0034] As a basic embodiment of the present invention, the present invention includes a conveying device for the water quenching stage of polysilicon, comprising a frame 1, a conveying mechanism 2, and two sets of lifting assemblies. The conveying mechanism 2 includes a drive assembly, a driving pulley, a driven pulley, and a conveyor belt. The conveyor belt can be a belt wound around the driving pulley and the driven pulley. The drive assembly can be a motor, and the driving pulley is connected to the output shaft of the motor.

[0035] Each lifting assembly includes a driver 3, a support frame 4, and two lifting brackets 5. The driver 3 can be a linear drive structure, such as a hydraulic cylinder, a pneumatic cylinder, a ball screw, etc., which is not limited in this embodiment. The two lifting brackets 5 are respectively connected to the support frame 4, and the support frame 4 is connected to the driver 3. The structural arrangement of the support frame 4 ensures that the working area enclosed by the conveying mechanism 2 and the lifting brackets 5 is offset from the horizontal projection of the driver 3, so that the driver 3 is located outside the working area, preventing the falling silicon material from affecting the operation of the driver 3.

[0036] The drive member 3 is configured to drive the support frame 4 up and down, further driving the lifting brackets 5 up and down. Because the lifting brackets 5 are located on the sides of the conveyor belt, with two sets of lifting brackets 5 located near the infeed and outfeed ends of the conveyor belt, respectively, when silicon rods need to be placed at the infeed end of the conveyor belt, the lifting brackets 5 move upward, and the robot places the silicon rods on the lifting brackets 5, or places a tray containing silicon rods on the lifting brackets 5. The lifting brackets 5 move downward, driving the silicon rods on the lifting brackets 5 downward until the silicon rods or the tray containing silicon rods contact the conveyor belt. The lifting brackets 5 continue to move downward, placing the silicon rods or the tray containing silicon rods on the conveyor belt. When the silicon rods or the tray containing silicon rods need to be removed from the outfeed end of the conveyor belt, the lifting brackets 5 rise, receiving the silicon rods or the tray containing silicon rods from below, and then continue to rise, driving the silicon rods or the tray containing silicon rods up and off the conveyor belt.

[0037] Example 2

[0038] As a preferred embodiment of the present invention, the present invention includes a conveying device for the water quenching stage of polysilicon, comprising a frame 1, a conveying mechanism 2, and two sets of lifting assemblies. The conveying mechanism 2 includes a driving assembly, a driving wheel, a driven wheel, and a conveyor belt. The conveyor belt can be a belt, which is wound around the driving wheel and the driven wheel. The belt can also be provided with a silicon material rod placement block, and the silicon material rod placement block is provided with a placement cavity for placing the silicon material rods that matches the silicon material rods. The silicon material rod placement block can be formed by two adjacent limit blocks arranged on the belt. Each set of lifting assemblies includes a driving member 3, a support frame 4, and two lifting brackets 5. The lifting brackets 5 are located on the side of the conveyor belt. Specifically, the two lifting brackets 5 in the same set are respectively arranged on both sides of the conveyor belt, and the two lifting brackets 5 are at the same distance from the conveyor belt to facilitate better control of the position of the silicon material rods on the conveyor belt. Furthermore, the two lifting brackets 5 in one set of lifting assemblies are close to the feed end of the conveyor belt to complete the work of placing the silicon material rods on the conveyor belt. The two lifting brackets 5 of the other lifting assembly are close to the discharge end of the conveyor belt and are used to complete the work of separating the silicon material rods from the conveyor belt.

[0039] The support frame 4 can be flat, with two lifting brackets 5 connected to the upper surface of the support frame 4. The driver 3 can be two cylinders, one connected to each end of the lower surface of the support frame 4. Although the arrangement of two cylinders may cause non-parallelism and vibration during mechanical movement, the structural design of the support frame 4 can shield the driver 3 and ensure that the working area enclosed by the conveying mechanism 2 and the lifting brackets 5 is offset from the horizontal projection of the driver 3. Ultimately, this can prevent silicon material jamming and extend the service life of the driver 3.

[0040] Furthermore, a silicon rod placement slot may be provided on the upper surface of each lifting bracket 5. The driving member 3 is configured to drive the support frame 4 to move up and down, further driving the lifting bracket 5 to move up and down, and each lift completes the transfer of a silicon rod.

[0041] Example 3

[0042] As another preferred embodiment of the present invention, the present invention includes a conveying device for the water quenching stage of polysilicon, comprising a frame 1, two lifting assemblies, and three parallel conveying mechanisms 2. Each conveying mechanism 2 includes a drive assembly, a driving pulley, a driven pulley, and a conveyor belt. The conveyor belt is a belt wound around the driving and driven pulleys. Therefore, the conveying device includes three parallel conveyor belts, with spacing between adjacent conveyor belts.

[0043] Each set of lifting assemblies includes a driving member 3, a support frame 4 and two lifting brackets 5. The two lifting brackets 5 are respectively connected to the support frame 4, and the support frame 4 is connected to the driving member 3. The lifting brackets 5 are located on the side of the conveyor belt. Specifically, the lifting brackets 5 of each set of lifting assemblies can be respectively located between two adjacent conveyor belts. Preferably, they are arranged in the middle between two adjacent conveyor belts. The lifting brackets 5 of one set of lifting assemblies are close to the feed end of the conveyor belt, and the lifting brackets 5 of the other set of lifting assemblies are close to the discharge end of the conveyor belt. The driving member 3 is configured to drive the support frame 4 to move up and down, and further drive the lifting brackets 5 to move up and down, so that the silicon material rods on the lifting brackets 5 can be placed on three conveyor belts at the same time, so as to improve the stability of the conveyor belt operation.

[0044] Furthermore, in order to increase the service life of the driving member 3, the working area enclosed by the conveying mechanism 2 and the lifting bracket 5 is staggered with the projection of the driving member 3 on the horizontal plane.

[0045] Example 4

[0046] As the best embodiment of this utility model, refer to the attached Figure 1 and instructions attached Figure 2 The utility model includes a conveying device for the water quenching stage of polysilicon, including a frame 1, four groups of conveying mechanisms 2 and two groups of lifting components. The conveying mechanism 2 includes a driving component, a driving wheel, a driven wheel and a conveyor belt. The driving wheel and the driven wheel can be sprockets, and the conveyor belt can be a chain. The chain is also provided with a plurality of silicon material rod placement blocks. The silicon material rod placement blocks are arranged in groups, with each group having two silicon material placement blocks, and the two silicon material placement blocks are arranged at intervals. The silicon material placement block includes a mounting seat and a placement groove located on the surface of the mounting seat.

[0047] Furthermore, the four conveying mechanisms 2 are all mounted on the frame 1 and can share a common drive assembly, with the four conveyor belts operating synchronously via a driving shaft and a driven shaft. More specifically, the four driving wheels are each mounted on the driving shaft, and the four driven wheels are each mounted on the driven shaft, with the four conveyor belts meshing with the driving wheels and driven wheels, respectively. The drive assembly can be a drive motor, which can be connected to the driving shaft via a coupling. The drive motor drives the driving shaft to rotate, further driving the four driving wheels on the driving shaft to operate synchronously, thereby driving the four conveyor belts to achieve synchronous conveying.

[0048] Each lifting assembly includes a drive member 3, a support frame 4, and two lifting brackets 5. Each lifting bracket 5 can include a horizontally arranged support plate and two vertically arranged support rods. The support plate can be positioned on top of the two support rods. Furthermore, to enhance the structural stability of the lifting bracket 5, reinforcing ribs can be provided between the two support rods. Each support plate also has two spaced-apart silicon rod placement slots. The spacing between the two silicon rod placement slots matches the spacing between the placement slots of the two silicon material placement blocks in the same group. This structural arrangement allows three silicon rods arranged in a "P" configuration to be transported each time. The lifting brackets 5 are located to the side of the conveyor belt. More specifically, the two lifting brackets 5 in the same group can be located between the two outermost conveyor belts. Furthermore, the two lifting brackets 5 are located in the middle of the two conveyor belts. Furthermore, the two groups of lifting brackets 5 can be positioned within the length of the conveyor belt, near either the feed end or the discharge end of the conveyor belt.

[0049] The support frame 4 may include vertically arranged side panels and horizontally arranged mounting members. The support rod is connected to the mounting member. The mounting member may be plate-shaped or rod-shaped. If the mounting member is plate-shaped, it may be provided with a plurality of through holes to reduce the weight of the support frame 4 and prevent the accumulation of dropped silicon material on the mounting member. If the mounting member is rod-shaped, the number of the mounting members may be at least two.

[0050] The driving member 3 is a cylinder, which is arranged on the frame 1, and the piston rod of the cylinder is connected to the side plate. The driving member 3 drives the support frame 4 to move up and down, and further drives the lifting bracket 5 to rise and fall. Preferably, a slider can be provided on the side panel, and a guide rail 6 can be provided on the frame 1. The side panel and the frame 1 are slidably connected through the cooperation of the guide rail 6 and the slider. Through this structure, the working area enclosed by the conveying mechanism 2 and the lifting bracket 5 is staggered with the projection of the driving member 3 on the horizontal plane; the projection of the guide rail 6 and the slider on the horizontal plane is staggered with the projection of the working area on the horizontal plane, so as to prevent the falling silicon material from affecting the operation of the driving member 3, the guide rail 6 and the slider.

[0051] When silicon rods need to be placed at the feed end of the conveyor belt, the support bracket 5 moves upward, and the robot places two silicon rods in the two silicon rod placement slots of the support bracket 5, and then places a silicon rod on top of the two silicon rods, so that the three silicon rods form a herringbone structure. The support bracket 5 moves downward, driving the silicon rods on the support bracket 5 downward. At this time, a set of silicon rod placement blocks on the conveyor belt move into place. As the support bracket 5 moves downward, the silicon rods are placed in the placement slots of the silicon rod placement blocks. The support bracket 5 continues to move downward, and the conveyor belt drives the herringbone-shaped silicon rods along the conveyor belt. When the silicon rods need to be removed from the discharge end of the conveyor belt, the support bracket 5 rises, receiving the silicon rods from below, and continues to rise, driving the silicon rods up and off the conveyor belt. The robot then transfers the three herringbone-shaped silicon rods to the next process in sequence.

[0052] To sum up, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

Claims

1. A conveying device for a polysilicon water quenching stage, comprising a frame (1) and a conveying mechanism (2), wherein the conveying mechanism (2) comprises a driving assembly, a driving wheel, a driven wheel and a conveyor belt, and is characterized in that: It also includes two groups of lifting components; each group of lifting components includes a driving member (3), a support frame (4) and two lifting brackets (5); the lifting brackets (5) are located on the side of the conveyor belt and close to the feed end or the discharge end of the conveyor belt; the working area enclosed by the conveying mechanism (2) and the lifting brackets (5) is staggered with the projection of the driving member (3) on the horizontal plane; the two lifting brackets (5) are respectively connected to the support frame (4), the support frame (4) is connected to the driving member (3), and the driving member (3) is configured to drive the supporting frame (4) to move up and down, and further drive the lifting brackets (5) to move up and down.

2. The conveying device for polysilicon water quenching according to claim 1, characterized in that: The two lifting brackets (5) in the same group are respectively arranged on both sides of the conveyor belt, and the distance between the two lifting brackets (5) and the conveyor belt is the same.

3. The conveying device for polysilicon water quenching according to claim 1, characterized in that: The number of the conveying mechanisms (2) is at least two groups, which are arranged in parallel.

4. The conveying device for polysilicon water quenching according to claim 3, characterized in that: The lifting bracket (5) is located between the conveyor belts of two adjacent groups of conveying mechanisms (2).

5. The conveying device for polysilicon water quenching according to claim 4, characterized in that: All conveyor belts run synchronously.

6. The conveying device for polysilicon water quenching according to claim 2 or 5, characterized in that: The support frame (4) and the frame (1) are slidably connected through the cooperation of the guide rail (6) and the slider.

7. The conveying device for polysilicon water quenching according to claim 6, characterized in that: The projections of the guide rail (6) and the slider on the horizontal plane are staggered with the projection of the working area on the horizontal plane.

8. The conveying device for polysilicon water quenching according to claim 1, characterized in that: The driving member (3) is a cylinder.

9. The conveying device for polysilicon water quenching according to claim 2 or 5, characterized in that: The upper surface of the lifting bracket (5) is provided with a silicon material rod placement groove, and the conveyor belt is provided with a silicon material rod placement block that matches the silicon material rod placement groove.

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