A multi-size crucible sand planting equipment
By setting up adjustable material separation plates and sand coupling pallets in crucible sand planting equipment, the problem that existing equipment can only be suitable for single type crucibles is solved, and multiple models of application and sand recovery are realized, avoiding material waste and equipment Damage, protecting the operation and environment of the equipment.
Patent Information
- Application Number
- CN202010426939.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2040-05-19
AI Technical Summary
The existing crucible sand planting equipment can only be used for single-type crucibles, resulting in the sand planting area that must be larger than the crucible size, resulting in waste of raw materials and accumulation of sand on the load-bearing equipment, affecting the normal operation of the equipment.
A multi-size crucible sand planting equipment is designed. By setting an adjustable material separation plate and driving screw in the sand planting hopper, the sand planting area can be adjusted according to different types of crucibles, and a sand connecting tray is set under the sand planting roller. To collect sand falling, prevent sand falling into the drum conveying platform.
It realizes sand planting suitable for many different types of crucibles, avoids waste of raw materials and fall into the load-bearing equipment, and protects the normal operation and working environment of the equipment.
Smart Images
Figure CN111455459B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to crucible sand planting equipment, in particular to multi-size crucible sand planting equipment. Background Art
[0002] At present, in the photovoltaic monocrystalline and polycrystalline industries, how to further improve the conversion efficiency of polycrystalline silicon wafers, reduce the cost of polycrystalline silicon wafers, and ensure good ingot quality is a long-term concern of the polycrystalline industry. At the same time, the client's requirements for high-purity coatings on crucibles are getting higher and higher, especially the requirements for small indicators at the application end. In the existing technology, in order to reduce the dislocation and defects of the ingot, seed crystal seeding is used to promote the non-spontaneous nucleation of polycrystalline silicon ingots, improve the crystal flower size of the ingot, and improve the terminal efficiency of the ingot product.
[0003] At present, in order to improve the effect and efficiency of sand planting, automated sand planting equipment is often used for sand planting operations in crucibles. Automated sand planting equipment can achieve uniform sand spreading operations, thus replacing the many problems of uneven sand spreading, poor sand planting effect, and low efficiency brought about by traditional manual sand spreading. However, the sand planting area of the existing sand planting equipment is of fixed size and can only be used for a single type of crucible. At the same time, in order to cover the entire area at the bottom of the crucible, the sand dropping range of the sand planting equipment must be larger than the crucible size, which will result in additional blank areas for sand dropping, which will not only cause a waste of raw materials, but also the sand will accumulate on the supporting equipment outside the crucible, which will affect the normal operation of the supporting equipment and even cause damage to the supporting equipment. Summary of the invention
[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides a multi-size crucible sand planting equipment. The sand planting area of the equipment can be conveniently adjusted according to the crucibles of different sizes and models, and can be suitable for the sand planting of various different models of crucibles. At the same time, the sand that falls into the periphery of the crucible can be recovered, thereby avoiding the waste of raw materials. It can also effectively prevent the sand from falling onto the carrying equipment, thereby effectively protecting the normal operation of the carrying equipment.
[0005] In order to achieve the above-mentioned purpose, the present invention provides a multi-size crucible sand planting equipment, including a support frame, a driving mechanism, a material dividing mechanism and a material receiving mechanism, a sand planting hopper installed at the upper center of the support frame, a sand planting drum rotatably installed at the middle center of the support frame through short shafts at both ends, and a first driving motor installed on the support frame, wherein the length direction of the sand planting hopper extends in the left-right direction, and its upper end opening serves as a material feed port connected to its internal accommodating cavity, and its lower end is provided with a strip-shaped material discharge port connected to its internal accommodating cavity; the sand planting drum is arranged below the strip-shaped material discharge port corresponding to the strip-shaped material discharge port, and a gap is fitted between its upper surface and the strip-shaped material discharge port, and its length direction is consistent with the length direction of the strip-shaped material discharge port; the output shaft of the first driving motor is connected to the short shaft at one end of the sand planting drum to drive the rotation of the sand planting drum;
[0006] The driving mechanism is composed of a second driving motor installed on the upper part of the support frame and a driving screw arranged at the lower part of the sand planting hopper. The length direction of the driving screw is consistent with the length direction of the sand planting hopper, and its two ends are rotatably connected to the left end plate and the right end plate of the sand planting hopper, and one end thereof is rotatably passed through the sand planting hopper and connected to the output shaft of the second driving motor;
[0007] The material distribution mechanism is composed of a pair of material distribution plates, the shape and size of the material distribution plates are adapted to the shape and size of the internal accommodating chamber of the sand planting hopper, the lower parts of the pair of material distribution plates are provided with threaded holes at the positions corresponding to the driving screw rods, the pair of material distribution plates are symmetrically arranged inside the sand planting hopper on the left and right, and are sleeved on the outside of the driving screw rod through the threaded holes; the front and rear side ends of the material distribution plates are respectively slidably matched with the inner side walls of the front baffle plate and the rear baffle plate of the sand planting hopper, and are driven by the driving screw rod to realize movement in the length direction of the internal accommodating chamber of the sand planting hopper; a dynamic accommodating chamber located in the middle of the internal accommodating chamber is formed between the pair of material distribution plates;
[0008] The material receiving mechanism consists of two sand receiving trays and two connecting parts; the two sand receiving trays are symmetrically arranged below the sand planting drum, and are respectively located on the left and right sides of a pair of material dividing plates; the length direction of the sand receiving trays extends along the front and back direction; the lower ends of the two connecting parts are respectively fixedly connected to the sand receiving trays, and the upper ends thereof are respectively fixedly connected to the pair of material dividing plates.
[0009] As a preference, the connecting piece is L-shaped, the horizontal section of the connecting piece is fixedly connected to the upper end of the dividing plate, and the vertical section of the connecting piece is fixedly connected to the front end or the rear end of the sand receiving tray.
[0010] Furthermore, in order to facilitate the continuity of material discharge, the longitudinal section of the sand planting hopper is an inverted isosceles trapezoid, and the lower base of the isosceles trapezoid is located at the top as a material feed port, and the upper base of the isosceles trapezoid is located at the bottom as a strip-shaped material discharge port.
[0011] Furthermore, in order to facilitate the transportation of the crucible, a roller conveying platform for conveying the crucible is also provided below the support frame.
[0012] In the present invention, by providing a pair of dividing plates that slide with the inner side wall of the sand planting hopper in the sand planting hopper, and adjusting the distance between the pair of dividing plates by rotating the driving screw, a dynamic containing chamber located between the pair of dividing plates can be isolated in the internal containing chamber of the sand planting hopper. In this way, after the raw materials are loaded in the dynamic containing chamber, the actual sand planting difference can be adjusted according to the size of crucibles of different models, and the rotation of the driving screw can be achieved by controlling the second driving motor. By providing a sand receiving tray located on the outside of a pair of dividing plates under the sand planting drum, the fallen sand thrown by the sand planting drum and entering the blank area of the sand falling can be effectively collected, thereby preventing the fallen sand from entering the roller conveying platform, and thus will not affect the effective operation of the roller conveying platform. In addition, since the provision of the sand receiving tray can effectively prevent the fallen sand from entering the roller conveying platform, and thus can effectively reduce the diffusion of dust in the air, it can be beneficial to protect the working environment on site. The sand planting area of the equipment can be conveniently adjusted according to crucibles of different sizes and models, and can be used for sand planting of various crucibles of different models. At the same time, the sand that falls into the periphery of the crucible can be recovered, thereby avoiding the waste of raw materials and effectively preventing the sand from falling onto the carrying equipment, thereby effectively protecting the normal operation of the carrying equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the present invention;
[0014] Figure 2 yes Figure 1 AA section view.
[0015] In the figure: 1. sand planting hopper, 2. support frame, 3. crucible, 4. roller conveying platform, 5. material dividing plate, 6. second driving motor, 7. sand planting roller, 8. sand receiving tray, 9. first driving motor, 10. driving screw, 11. connecting parts. DETAILED DESCRIPTION
[0016] The present invention will be further described below.
[0017] like Figure 1 and Figure 2As shown, a multi-size crucible sand planting equipment comprises a support frame 2, a driving mechanism, a material dividing mechanism and a material receiving mechanism, a sand planting hopper 1 installed at the upper center of the support frame 2, a sand planting drum 7 rotatably installed at the middle center of the support frame 2 through short shafts at both ends, and a first driving motor 9 installed on the support frame 2, wherein the length direction of the sand planting hopper 1 extends in the left-right direction, and its upper end opening serves as a material feed port connected to its internal accommodating cavity, and its lower end is provided with a strip-shaped material discharge port connected to its internal accommodating cavity; the sand planting drum 7 is arranged below the strip-shaped material discharge port corresponding to the strip-shaped material discharge port, and a gap is fitted between its upper surface and the strip-shaped material discharge port, and its length direction is consistent with the length direction of the strip-shaped material discharge port, and the two ends in the length direction are respectively located on the outside of the two ends of the length direction of the sand planting hopper 1; the output shaft of the first driving motor 9 is connected to the short shaft at one end of the sand planting drum 7 to drive the rotation of the sand planting drum 7;
[0018] The driving mechanism is composed of a second driving motor 6 installed on the upper part of the support frame 2 and a driving screw 10 arranged at the lower part of the inside of the sand planting hopper 1. The length direction of the driving screw 10 is consistent with the length direction of the sand planting hopper 1, and its two ends are rotatably connected to the left end plate and the right end plate of the sand planting hopper 1, and one end thereof is rotatably passed through the sand planting hopper 1 and connected to the output shaft of the second driving motor 6;
[0019] The material distribution mechanism is composed of a pair of material distribution plates 5, the shape and size of the material distribution plates 5 are adapted to the shape and size of the internal accommodating chamber of the sand planting hopper 1, and the lower parts of the pair of material distribution plates 5 are provided with threaded holes at the positions corresponding to the driving screw 10, and the pair of material distribution plates 5 are symmetrically arranged inside the sand planting hopper 1, and are sleeved on the outside of the driving screw 10 through the threaded holes; the front and rear side ends of the material distribution plates 5 are respectively slidably matched with the inner side walls of the front baffle plate and the rear baffle plate of the sand planting hopper 1, and are driven by the driving screw 10 to realize the movement in the length direction of the internal accommodating chamber of the sand planting hopper 1; a dynamic accommodating chamber located in the middle of the internal accommodating chamber is formed between the pair of material distribution plates 5;
[0020] The material receiving mechanism consists of two sand receiving trays 8 and two connecting parts 11; the two sand receiving trays 8 are symmetrically arranged below the sand planting drum 7, and are respectively located on the left and right sides of a pair of material dividing plates 5; the length direction of the sand receiving trays 8 extends along the front and rear direction; the lower ends of the two connecting parts 11 are respectively fixedly connected to the sand receiving trays 8, and the upper ends thereof are respectively fixedly connected to the pair of material dividing plates 5.
[0021] The connecting piece is L-shaped, and the horizontal section of the connecting piece 11 is fixedly connected to the upper end of the dividing plate 5 , and the vertical section thereof is fixedly connected to the front end or the rear end of the sand receiving tray 8 .
[0022] Furthermore, the longitudinal section of the sand planting hopper 1 is an inverted isosceles trapezoid, and the lower base of the isosceles trapezoid is located at the top as a feed inlet, and the upper base of the isosceles trapezoid is located at the bottom as a strip-shaped discharge outlet.
[0023] A roller conveying platform 4 for conveying the crucible 3 is also provided below the support frame 2 .
[0024] As a preferred embodiment, a distance sensor can also be set on the inner side of the upper end of any one of the dividing plates 5, with the sensing surface of the distance sensor facing the other dividing plate 5. The distance sensor is used to sense the distance signal between a pair of dividing plates 5 in real time and send it to the controller (PLC controller can be used) in real time. The controller is used to obtain the distance value according to the received distance signal, and display the distance value through a display screen connected to it, so that the operator can know the distance between the pair of dividing plates 5 in time, so as to control the second drive motor 6 to stop working in time after the sand planting size is reached. As a preferred embodiment, the thread on the driving screw 10 has a self-locking function. As a preferred embodiment, the sand planting size can also be input into the controller before the sand planting operation, so that the controller automatically adjusts the size of the sand planting size. When the distance value of a pair of dividing plates 5 reaches the set value, the controller automatically controls the second drive motor 6 connected to it to stop.
[0025] By providing a pair of dividing plates that slide with the inner wall of the sand planting hopper in the sand planting hopper, and adjusting the distance between the pair of dividing plates by rotating the driving screw, a dynamic containing chamber located between the pair of dividing plates can be isolated in the internal containing chamber of the sand planting hopper. In this way, after the raw materials are loaded in the dynamic containing chamber, the actual sand planting difference can be adjusted according to the size of crucibles of different models, and the rotation of the driving screw can be achieved by controlling the second driving motor. By providing a sand receiving tray located on the outside of a pair of dividing plates under the sand planting drum, the fallen sand thrown by the sand planting drum and entering the blank area of the sand falling can be effectively collected, thereby preventing the fallen sand from entering the roller conveying platform, and thus will not affect the effective operation of the roller conveying platform. In addition, since the provision of the sand receiving tray can effectively prevent the fallen sand from entering the roller conveying platform, and thus can effectively reduce the diffusion of dust in the air, it can be beneficial to protect the working environment on site. The sand planting area of the equipment can be conveniently adjusted according to crucibles of different sizes and models, and can be used for sand planting of various crucibles of different models. At the same time, the sand that falls into the periphery of the crucible can be recovered, thereby avoiding the waste of raw materials and effectively preventing the sand from falling onto the carrying equipment, thereby effectively protecting the normal operation of the carrying equipment.
Claims
1. A multi-size crucible sand planting device, comprising a support frame (2), a sand planting hopper (1) installed at the center of the upper part of the support frame (2), a sand planting drum (7) rotatably installed at the center of the middle part of the support frame (2) through short shafts at both ends, and a first drive motor (9) installed on the support frame (2), wherein the length direction of the sand planting hopper (1) extends in the left-right direction, the upper end opening of which serves as a feed port connected to its internal accommodating cavity, and the lower end of which is provided with a strip-shaped discharge port connected to its internal accommodating cavity; the sand planting drum (7) is arranged below the strip-shaped discharge port corresponding to the strip-shaped discharge port, the upper surface of the sand planting drum is gap-matched with the strip-shaped discharge port, and the length direction of the sand planting drum is consistent with the length direction of the strip-shaped discharge port; the output shaft of the first drive motor (9) is connected to the short shaft at one end of the sand planting drum (7) to drive the rotation of the sand planting drum (7); It is characterized in that It also includes a driving mechanism, a material distributing mechanism and a material receiving mechanism; The driving mechanism is composed of a second driving motor (6) mounted on the upper part of the support frame (2) and a driving screw (10) arranged at the lower part of the sand planting hopper (1); the length direction of the driving screw (10) is consistent with the length direction of the sand planting hopper (1), and its two ends are rotatably connected to the left end plate and the right end plate of the sand planting hopper (1), and one end thereof is rotatably passed through the sand planting hopper (1) and connected to the output shaft of the second driving motor (6); The material distribution mechanism is composed of a pair of material distribution plates (5), the shape and size of the material distribution plates (5) are adapted to the shape and size of the internal accommodating chamber of the sand planting hopper (1), the lower parts of the pair of material distribution plates (5) are provided with threaded holes at positions corresponding to the driving screw rod (10), the pair of material distribution plates (5) are symmetrically arranged inside the sand planting hopper (1) on the left and right, and are sleeved on the outside of the driving screw rod (10) through the threaded holes; the front and rear side ends of the material distribution plates (5) are respectively slidably matched with the inner side walls of the front baffle plate and the rear baffle plate of the sand planting hopper (1), and are driven by the driving screw rod (10) to realize movement in the length direction of the internal accommodating chamber of the sand planting hopper (1); a dynamic accommodating chamber located in the middle of the internal accommodating chamber is formed between the pair of material distribution plates (5); The material receiving mechanism comprises two sand receiving trays (8) and two connecting members (11); the two sand receiving trays (8) are symmetrically arranged below the sand planting drum (7) and are respectively located on the left and right sides of a pair of material dividing plates (5); the length direction of the sand receiving trays (8) extends along the front-back direction; the lower ends of the two connecting members (11) are respectively fixedly connected to the sand receiving trays (8), and the upper ends thereof are respectively fixedly connected to the pair of material dividing plates (5).
2. The multi-size crucible sand planting equipment according to claim 1, characterized in that: The inner ends of the two sand receiving trays (8) extend linearly in the front-rear direction and are respectively located directly below the inner side surfaces of the two material dividing plates (5).
3. A multi-size crucible sand planting device according to claim 1 or 2, characterized in that: The connecting piece is L-shaped, the horizontal section of the connecting piece (11) is fixedly connected to the upper end of the material dividing plate (5), and the vertical section of the connecting piece is fixedly connected to the front end or the rear end of the sand receiving tray (8).
4. The multi-size crucible sand planting equipment according to claim 3, characterized in that: The longitudinal section of the sand planting hopper (1) is an inverted isosceles trapezoid, wherein the lower base of the isosceles trapezoid is located at the top as a material inlet, and the upper base of the isosceles trapezoid is located at the bottom as a strip-shaped material outlet.
5. The multi-size crucible sand planting equipment according to claim 4, characterized in that: A roller conveying platform (4) for conveying the crucible (3) is also provided below the support frame (2).