Full-automatic quantitative packaging device for polycrystalline silicon

Abstract

A full-automatic quantitative packaging device for polycrystalline silicon relates to the technical field of polycrystalline silicon packaging equipment, and adopts the technical scheme that the full-automatic quantitative packaging device comprises a rack, a weighing unit, a bag opening unit and a conveying unit, a collecting hopper is arranged at the top of the rack, and a discharging pipe is arranged at the bottom of the collecting hopper; a plurality of weighing units are arranged at the top of the collection hopper, and each weighing unit comprises a weighing bin and a weighing sensor; the bag opening unit comprises a supporting frame and a vertical moving device, the supporting frame is provided with a pair of first telescopic devices, the pair of first telescopic devices are both provided with first connecting plates, and the first connecting plates are provided with suction cups; the conveying unit comprises a conveyor. The steps of automatic quantitative weighing, bag opening packaging, conveying and the like are completed through cooperation of all the assemblies, flexible switching operation among materials with different particle sizes can be achieved, the problem that the labor intensity of manual operation is large is solved, the occupied area is small, the packaging technology is achieved, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon packaging equipment, in particular to a fully automatic quantitative packaging device for polysilicon. Background Art

[0002] Polysilicon is an important raw material in the solar cell and semiconductor industries. The precision and efficiency of its production and processing technology directly affect the quality and cost of the final product. In the process of polysilicon production, quantitative packaging is a key link, which requires precise filling of polysilicon materials into packaging bags to ensure product consistency and efficient production. Traditional polysilicon packaging equipment usually adopts manual operation, and 2-3 workers are required to work simultaneously to meet the efficiency requirements, and the manual labor intensity is high; although there are already fully automatic packaging lines on the market, there are still problems such as complex processes, long flow paths, large floor space, and high investment costs, and they can only package polysilicon materials of one particle size. Summary of the Utility Model

[0003] In view of the problems in the prior art solutions such as high labor intensity of manual packaging, complex processes and large floor space of the fully automatic packaging line, the utility model provides a fully automatic quantitative packaging device for polysilicon.

[0004] The utility model provides the following technical solutions: a fully automatic quantitative packaging device for polysilicon, comprising:

[0005] A frame, on the top of which an aggregate hopper is arranged, and a discharge pipe is arranged at the bottom of the aggregate hopper;

[0006] A weighing unit, multiple weighing units are arranged on the top of the aggregate hopper, the weighing unit includes a weighing bin, a weighing sensor is arranged between the weighing bin and the frame, a feed inlet is arranged at the top of the weighing bin, a discharge port is arranged on the side of the weighing bin facing the aggregate hopper, and a discharge door is arranged at the discharge port;

[0007] A bag opening unit, including a support frame at the bottom of the aggregate hopper and a vertical moving device for driving the support frame to move up and down, the support frame is provided with a pair of first telescopic devices that expand and contract in the horizontal direction, and a first connecting plate is arranged on one side of each of the pair of first telescopic devices facing each other, and a suction cup is arranged on the first connecting plate;

[0008] A conveying unit, including a conveyor arranged at the bottom of the support frame.

[0009] Preferably, the discharge door includes a door panel for blocking the discharge port, one side of the door panel is hinged to the weighing bin, and a telescopic rod is also hinged between the door panel and the weighing bin.

[0010] Preferably, the conveying unit includes a vertical moving device for driving the conveyor to move up and down. The vertical moving device is provided with two legs, and the conveyor is arranged on the legs.

[0011] Preferably, the vertical moving device includes a vertical guide rail arranged on the frame, a sliding plate slidably connected to the vertical guide rail, and a linear driving device for driving the sliding plate to slide.

[0012] Preferably, ball guards are further arranged on both sides of the conveyor.

[0013] Preferably, it further includes a bag supply unit and a bag feeding unit;

[0014] The bag supply unit includes a packaging bag bin arranged on one side of the frame and a bag taking device above the packaging bag bin. The top of the packaging bag bin is provided with an opening. The bag taking device includes a bag taking bracket. The bag taking bracket is provided with a second telescopic device that can telescopically move in the vertical direction. One end of the second telescopic device facing the packaging bag bin is provided with a second connecting plate, and the second connecting plate is provided with a suction cup.

[0015] The bag feeding unit includes a pair of L-shaped connecting rods respectively rotatably connected to one side of the frame facing the packaging bag bin. A connecting rod is arranged between the pair of L-shaped connecting rods. A telescopic rod is hinged between the connecting rod and the frame. Claws are arranged on both sides of the pair of L-shaped connecting rods facing each other, and the claws are arranged at the ends of the L-shaped connecting rods.

[0016] Preferably, the packaging bag bin includes a bottom plate and a plurality of L-shaped limiting plates. One end of the L-shaped limiting plate is detachably connected to the bottom plate, and the other end extends in the vertical direction. The plurality of L-shaped limiting plates respectively clamp the four sides of the packaging bag.

[0017] Preferably, the bag taking bracket is connected to the frame.

[0018] The beneficial effects of the present utility model are as follows: The cooperation of each component is used to complete steps such as automatic quantitative weighing, bag opening and packaging, and conveying. Moreover, it can flexibly switch operations among various materials with different particle sizes, solves the problem of high labor intensity of manual operation, has a small floor area, a simple packaging process and structure, and low cost. Description of the Drawings

[0019] Figure 1 It is a side view of an embodiment of the packaging device.

[0020] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the packaging device.

[0021] Figure 3 It is a schematic diagram of an embodiment of the frame.

[0022] Figure 4 Schematic diagram of an embodiment of the weighing unit.

[0023] Figure 5 Schematic diagram of an embodiment of the bag-opening unit.

[0024] Figure 6 Schematic diagram of an embodiment of the conveyor.

[0025] Figure 7 Schematic diagram of an embodiment of the bag supply unit and the bag delivery unit.

[0026] Reference numerals: 10, frame; 11, aggregate hopper; 12, discharge pipe; 21, weighing bin; 22, load cell; 23, discharge door; 231, door panel; 232, telescopic rod; 31, support frame; 32, vertical moving device; 321, vertical guide rail; 322, sliding plate; 33, first telescopic device; 34, first connecting plate; 35, suction cup; 41, conveyor; 42, support leg; 43, ball guardrail; 51, bag-taking bracket; 52, second telescopic device; 53, second connecting plate; 54, suction cup; 55, bottom plate; 56, L-shaped limit plate; 61, L-shaped connecting rod; 62, connecting rod; 63, telescopic rod; 64, jaw; 70, packaging bag. Detailed implementation manners

[0027] The following further elaborates on the implementation manners of the present utility model in conjunction with the accompanying drawings and reference numerals, enabling those skilled in the art to implement it after studying this specification. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] The present utility model provides a fully automatic quantitative packaging device for polysilicon, including a frame 10 and a weighing unit, a bag supply unit, a bag-taking unit, a bag-opening unit, and a conveyor arranged on the frame 10.

[0029] Please refer to Figures 1-3 , the frame 10 can adopt a steel frame to support other components. A weighing unit is arranged at the top of the frame to complete the quantitative weighing of polysilicon materials; specifically, please refer to Figure 1 , 2, 4, the weighing unit includes a weighing bin 21. The bottom surface of the weighing bin 21 generally adopts an inclined plane to facilitate discharging. A weighing sensor 22 is provided between the weighing bin 21 and the frame 10. An inlet is provided at the top of the weighing bin 21. A discharging port is provided on one side of the weighing bin 21 facing the aggregate hopper 11, and a discharge door 23 is provided at the discharging port. During quantitative weighing, the discharge door 23 is closed, and the polysilicon material is put into the weighing bin 21 from the top inlet. The weighing sensor 22 detects the material quality in real time until the material quality meets the preset weight required for packaging, and then the feeding stops. When packaging is required, the discharge door 23 is opened to discharge the material.

[0030] The discharge door 23 can refer to related technologies and adopt a door structure with manual or automatic opening and closing. In this embodiment, the discharge door 23 includes a door panel 231 for blocking the discharging port. One side of the door panel 231 is hinged to the weighing bin 21 through a connecting rod, and a telescopic rod 232 is also hinged between the door panel 231 and the weighing bin 21. The telescopic rod 232 can adopt an electric, pneumatic or hydraulic telescopic rod, and its two ends are respectively hinged to the door panel 231 and the weighing bin 21, and the door panel 231 is opened and closed as it extends or retracts.

[0031] Multiple weighing units can be provided at the top of the frame to store polysilicon materials with different particle sizes respectively, so that the packaging device can complete the packaging of multiple materials and can be flexibly switched during the packaging operation. In this embodiment, 2 weighing units are provided at the top of the frame. An aggregate hopper 11 is also provided at the top of the frame 10, and the aggregate hopper 11 is located below the discharging ports of multiple weighing units. A discharge pipe 12 is provided at the bottom of the aggregate hopper 11. The materials discharged from different weighing units are all collected into the discharge pipe 12 through the aggregate hopper 11 and then fall into the packaging bag 70.

[0032] A bag opening unit is provided below the discharge pipe 12. When the packaging bag applicable to the present utility model is not in use, it is squeezed into a thin sheet shape, and it needs to be opened by the bag opening unit when in use. Please refer to Figure 1 、 2 、5, the bag opening unit includes a support frame 31 at the bottom of the aggregate hopper 11. A pair of first telescopic devices 33 that expand and contract in the horizontal direction are provided on the support frame 31. A first connecting plate 34 is provided on one side of each of the pair of first telescopic devices 33 facing each other, and a suction cup 35 is provided on the first connecting plate 34. The first telescopic device 33 can adopt an electric, pneumatic or hydraulic telescopic device. In this embodiment, a cylinder is adopted. The suction cup 35 generally adopts a vacuum suction cup, and its structure can refer to related technologies, and the number of suction cups 35 can be set to multiple to enhance stability. Please refer to Figure 5 , place the packaging bag 70 between the two first telescopic devices 33. Both of the two first telescopic devices 33 extend to the packaging bag 70, so that the suction cups 35 respectively suck both sides of the packaging bag 70, and then both of the two first telescopic devices 33 retract to open the packaging bag 70.

[0033] The bag opening unit further includes a vertical moving device 32 for driving the support frame 31 to move up and down. Before the material is bagged, the height of the packaging bag is lifted to sleeved the opening of the packaging bag on the end of the discharge pipe 12. In this embodiment, please refer to Figure 2 、 3 , the vertical moving device 32 includes vertical guide rails 321 provided on the frame 10, a sliding plate 322 slidably connected to the vertical guide rails 321, and a linear driving device for driving the sliding plate 322 to slide. The number of the vertical guide rails 321 is two, which are respectively arranged on both sides of the sliding plate 322; the linear driving device can adopt a lead screw slider linear module or a synchronous belt transmission system. In this embodiment, the synchronous belt transmission system is adopted. The sliding plate 322 is connected to the synchronous belt of the synchronous belt transmission mechanism through a toothed plate, and the support frame 31 is connected to the sliding plate 322. The movement of the synchronous belt drives the sliding plate 322 to reciprocally slide along the vertical guide rails 321, so as to change the height. In other embodiments, the vertical moving device 32 can also adopt a scissor lift mechanism or a rigid chain lift mechanism.

[0034] Please refer to Figure 1 、 2 、6, the conveying unit includes a conveyor 41 provided at the bottom of the support frame 31. The conveyor 41 can adopt a belt conveyor, and ball guards 43 are arranged on both sides thereof to prevent the packaging bags filled with materials from falling and wearing during the conveying process. Further, the conveying unit also includes a vertical moving device for driving the conveyor 41 to move up and down. The vertical moving device is provided with two supporting feet 42, and the conveyor 41 is arranged on the supporting feet 42. When the material is bagged, the conveyor is lifted to the bottom of the packaging bag to reduce the impact of the material on the packaging bag. After bagging, it descends to a predetermined height to facilitate conveying the packaging bag filled with materials to the next working station. The vertical moving device can refer to the vertical moving device 32 of the bag opening unit, and the two sets of vertical moving devices can share the same vertical guide rails 321.

[0035] This embodiment further includes a bag supply unit and a bag feeding unit, which automatically take out the packaging bags from the packaging bag bin and transfer them between two first telescopic devices 33 of the bag opening unit.

[0036] Please refer to Figure 7 , the bag supply unit includes a packaging bag bin and a bag taking device arranged on one side of the frame 10. The packaging bag bin includes a bottom plate 55 and a plurality of L-shaped limiting plates 56. The bottom plate 55 is connected to the frame 10 through a bracket. One end of the L-shaped limiting plate 56 is detachably connected to the bottom plate 55, and the other end extends in the vertical direction. The plurality of L-shaped limiting plates 56 enclose a space for storing packaging bags, and an opening is naturally formed at the top. When the packaging bag 70 applicable to the present utility model is not enabled, it is squeezed into a thin sheet and laid flat in the space, and the plurality of L-shaped limiting plates 56 respectively clamp the four sides of the packaging bag 70.

[0037] The bag-taking device is located above the packaging bag bin. The bag-taking device includes a bag-taking support bracket 51, and a second telescopic device 52 that can telescopically extend in the vertical direction is provided on the bag-taking support bracket 51. A second connecting plate 53 is provided at one end of the second telescopic device 52 facing the packaging bag bin, and a suction cup 54 is provided on the second connecting plate 53. The bag-taking support bracket 51 can be connected to the frame 10 or the bottom plate 55; the second telescopic device 52 can be an electric, pneumatic, or hydraulic telescopic device. In this embodiment, a cylinder is used; the suction cup 35 generally uses a vacuum suction cup, and its structure can refer to related technologies. The number of suction cups can be set to multiple to enhance stability. After the second telescopic device 52 extends, it extends into the packaging bag bin from the top opening, uses the suction cup 35 to suck the uppermost packaging bag 70 in the packaging bag bin, and then contracts to take out the packaging bag 70.

[0038] Please refer to Figures 1-3 , the bag-feeding unit includes a pair of L-shaped connecting rods 61 respectively rotatably connected to one side of the frame 10 facing the packaging bag bin. A connecting rod 62 is provided between the pair of L-shaped connecting rods 61. A telescopic rod 63 is provided between the connecting rod 62 and the frame 10. Both ends of the telescopic rod 63 are respectively hinged to the connecting rod 62 and the frame 10. And a clamping jaw 64 is provided on one side of the pair of L-shaped connecting rods 61 facing each other, and the clamping jaw 64 is provided at the end of the L-shaped connecting rod 61. The telescopic rod 63 can be an electric, pneumatic, or hydraulic telescopic rod. When it contracts, the two L-shaped connecting rods 61 and their clamping jaws 64 move to the left, as Figure 3 shown, it can clamp the packaging bag 70 taken out by the bag-taking device. When the telescopic rod 63 extends, the two L-shaped connecting rods 61 and their clamping jaws 64 flip about 90° to send the packaging bag 70 between the two first telescopic devices of the bag-opening unit. The packaging bag 70 is in a vertical state. The flipping process is as Figure 1 shown. Then, after the bag-opening unit fixes the packaging bag and releases the clamping jaw 64, the bag-feeding unit returns to the left, and the bag-opening unit then opens the packaging bag. The vertical moving device can change the height of the bag-opening unit to cooperate with the bag-feeding unit.

[0039] The overall working process of this embodiment is as follows: Polysilicon materials with various different particle sizes respectively enter a weighing unit until the weight of the materials in the weighing unit meets the requirements for packaging, and the feeding is stopped; the bag-taking unit takes out the packaging bag from the packaging bag bin, the bag-feeding unit sends it between the two first telescopic devices of the bag-opening unit and then resets. The bag-opening unit uses the suction cup to open the packaging bag, and uses the vertical moving device to move the bag-opening unit upward until the opening of the packaging bag is sleeved on the bottom of the discharge pipe. The conveying unit also uses the vertical moving device to move the conveyor upward to a specified position to support the packaging bag; open the discharge door of a weighing unit, and the materials slide into the packaging bag through the aggregate hopper and the discharge pipe. Then, the bag-opening unit releases the suction cup, the conveyor resets and conveys the packaging bag to the next working station.

[0040] The above are one or more embodiments of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A fully automatic quantitative packaging device for polysilicon, characterized in that: include: A frame, wherein a collecting hopper is arranged on the top of the frame, and a discharge pipe is arranged at the bottom of the collecting hopper; A weighing unit, wherein a plurality of weighing units are arranged on the top of the collecting hopper, the weighing unit comprises a weighing silo, a weighing sensor is arranged between the weighing silo and the frame, a feeding port is arranged on the top of the weighing silo, a discharge port is arranged on the side of the weighing silo facing the collecting hopper, and a discharge door is arranged on the discharge port; The bag opening unit comprises a support frame at the bottom of the collecting hopper and a vertical moving device for driving the support frame to move up and down, the support frame is provided with a pair of first telescopic devices that telescope in the horizontal direction, and a first connecting plate is provided on one side of the pair of first telescopic devices facing each other, and the first connecting plate is provided with a suction cup; The conveying unit comprises a conveyor arranged at the bottom of the supporting frame.

2. The fully automatic quantitative packaging device for polysilicon according to claim 1, characterized in that: The discharge door comprises a door panel for blocking the discharge port, one side of the door panel is hinged to the weighing bin, and a telescopic rod is hinged between the door panel and the weighing bin.

3. The fully automatic quantitative packaging device for polysilicon according to claim 1, characterized in that: The conveying unit comprises a vertical moving device for driving the conveyor to move up and down, the vertical moving device is provided with two supporting feet, and the conveyor is arranged on the supporting feet.

4. A fully automatic quantitative packaging device for polysilicon according to claim 1 or 3, characterized in that: The vertical moving device comprises a vertical guide rail arranged on the frame, a sliding plate slidably connected to the vertical guide rail, and a linear driving device for driving the sliding plate to slide.

5. The fully automatic quantitative packaging device for polysilicon according to claim 3, characterized in that: Ball guardrails are also arranged on both sides of the conveyor.

6. The fully automatic quantitative packaging device for polysilicon according to claim 1, characterized in that: It also includes a bag supply unit and a bag delivery unit; The bag supply unit comprises a packaging bag bin arranged at one side of the frame and a bag taking device located above the packaging bag bin, the packaging bag bin is provided with an opening at the top, the bag taking device comprises a bag taking bracket, the bag taking bracket is provided with a second telescopic device telescopic in a vertical direction, the second telescopic device is provided with a second connecting plate at one end facing the packaging bag bin, and the second connecting plate is provided with a suction cup; The bag feeding unit includes a pair of L-shaped connecting rods which are rotatably connected to the frame on one side facing the packaging bag bin, a connecting rod is arranged between the pair of L-shaped connecting rods, a telescopic rod is hinged between the connecting rod and the frame, and a pair of L-shaped connecting rods are provided with clamping claws on one side facing each other, and the clamping claws are arranged at the ends of the L-shaped connecting rods.

7. The fully automatic quantitative packaging device for polysilicon according to claim 6, characterized in that: The packaging bag bin includes a bottom plate and a plurality of L-shaped limiting plates, one end of the L-shaped limiting plate is detachably connected to the bottom plate, and the other end extends in a vertical direction, and the plurality of L-shaped limiting plates clamp the four sides of the packaging bag respectively.

8. The fully automatic quantitative packaging device for polysilicon according to claim 6, characterized in that: The bag taking bracket is connected to the frame.

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