A pollution-resistant, fully automatic polycrystalline silicon packaging and encapsulation machine

Abstract

This application discloses a fully automatic polycrystalline silicon packaging and encapsulation machine with anti-pollution properties, belonging to the field of polycrystalline silicon fragment packaging technology. It is used for packaging polycrystalline silicon fragments and includes a conveyor belt assembly, a guide hopper, an upper film assembly, a heat-sealing assembly, an extension platform, a telescopic component, a vacuum clamp, a lifting platform, and a horizontal U-shaped frame. The vacuum clamp is L-shaped. In this application, the guide hopper and the upper film assembly are sequentially arranged above the conveyor belt assembly along its conveying direction. After being weighed by the material distribution module, the polycrystalline silicon fragments are guided by the guide hopper to a carrier tray. The carrier tray carrying the polycrystalline silicon fragments is then conveyed by the conveyor belt assembly to the upper film assembly. The heat-sealing assembly is positioned above the sealing film of the upper film assembly and heat-welds the film to the carrier tray. The extension platform, telescopic component, vacuum clamp, lifting platform, and horizontal U-shaped frame are used in conjunction to perform secondary bagging of temporarily packaged products, achieving fully automatic, assembly-line packaging of polycrystalline silicon.

Description

Technical Field

[0001] This application relates to the field of polycrystalline silicon fragment packaging technology, and more particularly to a fully automatic polycrystalline silicon packaging and encapsulation machine that is pollution-resistant. Background Technology

[0002] Currently, polysilicon is a core raw material for photovoltaic power generation and the semiconductor industry, requiring extremely high purity. After polysilicon production, it needs to be crushed into blocks of the required specifications and then cleaned and dried. To prevent high-purity silicon blocks from being contaminated by moisture, dust, metal ions, etc., during storage and transportation, and to avoid breakage or dust generation due to collisions between blocks, strict sealed packaging is essential. This typically involves packaging with an inner high-cleanliness plastic bag (such as a PE bag) and an outer aluminum-plastic composite film bag (aluminum foil bag) or high-strength plastic woven bag, ensuring airtightness and moisture resistance.

[0003] However, existing fully automatic polysilicon packaging machines designed to prevent contamination have the following drawbacks: for example, they cannot achieve fully automatic packaging during the inner liner packaging process, requiring human intervention, which can easily contaminate polysilicon fragments. Summary of the Invention

[0004] The purpose of this application is to provide a fully automated polycrystalline silicon packaging and encapsulation machine that enables efficient, streamlined, and rapid packaging of polycrystalline silicon fragments and creates conditions for outer packaging.

[0005] To achieve the above objectives, this application provides a pollution-proof fully automatic polycrystalline silicon packaging and encapsulation machine, which includes: a conveyor belt assembly, a guide hopper, a film loading assembly, a heat sealing assembly, an extension platform, a telescopic component, a vacuum clamp, a lifting platform, and a horizontal U-shaped frame.

[0006] A guide hopper and an upper film assembly are sequentially arranged along the conveying direction of the conveyor belt assembly and above the conveyor belt assembly. After being weighed by the material distribution module, the polycrystalline silicon fragments are guided by the guide hopper to the carrier tray. Then, the carrier tray carrying the polycrystalline silicon fragments is conveyed to the upper film assembly by the conveyor belt assembly. The heat sealing assembly is arranged above the sealing film of the upper film assembly. The heat sealing assembly is used to cut the film on the upper film assembly and heat-weld the film to the upper tray to form an inner temporary packaging.

[0007] An extension platform perpendicular to the conveyor belt assembly is fixedly connected to one side of the conveyor belt assembly. A telescopic component is fixedly installed at the end of the extension platform away from the conveyor belt assembly. The telescopic end of the telescopic component faces the conveyor belt assembly and is fixedly installed with a vacuum clamp. A drop hole is opened on the upper surface of the extension platform. A lifting platform is fixedly installed below the extension platform. A horizontal U-shaped frame is fixedly installed at the top telescopic end of the lifting platform. The horizontal U-shaped frame corresponds to the drop hole.

[0008] The system employs an extension platform, telescopic components, vacuum clamps, a lifting platform, and a horizontal U-shaped frame for secondary bagging of temporarily packaged products. The specific process is as follows: the lifting platform is controlled to be in a lowered state, aligning the top plate of the horizontal U-shaped frame with the extension platform. The telescopic components manipulate the vacuum clamps to grab the product to the left, while simultaneously placing an open packaging bag inside the horizontal U-shaped frame. Then, the lifting platform is controlled to rise, aligning the top plate of the horizontal U-shaped frame with the extension platform. The telescopic components manipulate the vacuum clamps to push the product into the packaging bag. This allows for fully automated, assembly-line packaging of polycrystalline silicon. The resulting packaged polycrystalline silicon product can be vacuum-packed at the opening of the packaging bag, ensuring the inner temporary packaging film adheres tightly to the polycrystalline silicon product, preventing air contamination and avoiding powder generation from collisions between polycrystalline silicon products.

[0009] As a preferred embodiment, the conveyor belt assembly includes a first frame, a side plate frame, a first roller, a second roller, a conveyor belt, and a first motor. The side plate frame is fixedly installed on the top of the first frame. The first roller and the second roller are rotatably installed at both ends of the same side of the side plate frame. The conveyor belt is installed between the first roller and the second roller. The first motor is fixedly installed to the side plate frame, and the output end of the first motor is connected to the first roller for transmission. One side of the conveyor belt assembly is cantilevered to ensure that the extension platform, telescopic component, vacuum clamp, lifting platform, and horizontal U-shaped frame have good installation positions.

[0010] As a preferred embodiment, the film-upper assembly includes a fixedly mounted second frame, a film-feeding cylinder, a film-receiving cylinder, a guide cylinder, and a second motor. The film-feeding cylinder and the film-receiving cylinder are rotatably mounted at opposite ends on the same side of the second frame. Two guide cylinders are rotatably mounted on the second frame and located between the film-feeding cylinder and the film-receiving cylinder. The two guide cylinders are parallel and spaced apart. The second motor is fixedly mounted on the second frame and is connected to the film-receiving cylinder for transmission. The inner packaging film is wound onto the film-feeding cylinder. One end of the inner packaging film passes through the two guide cylinders and is wound onto the film-receiving cylinder. The second motor drives the film-receiving cylinder to rotate. The inner packaging film between the two guide cylinders is used for packaging, thus meeting the heat-sealing requirements of the heat-sealing assembly.

[0011] Further preferably, the heat-sealing assembly includes a fixedly installed second frame, a lifting component, a square frame, a well-shaped frame, a slitting cutter, and a heat-sealing plate. The lifting component is fixedly installed on the top of the second frame, and its bottom telescopic end passes through the second frame. The well-shaped frame is fixedly connected to the inner side of the square frame, and the well-shaped frame is fixedly installed with the telescopic end of the lifting component. A slitting cutter is fixedly installed on a set of sides of the bottom of the square frame perpendicular to the conveyor belt assembly's conveying direction, and a heat-sealing plate is fixedly installed on a set of sides of the bottom of the square frame parallel to the conveyor belt assembly's conveying direction. The slitting cutter and the heat-sealing plate work together to form a state where two sides are heat-sealed and the other two sides are open, which allows for better extraction of air from the temporary packaging during subsequent vacuum packaging.

[0012] Further preferably, the bottom of the guide hopper has a strip-shaped discharge port, which, in conjunction with the linear movement of the carrier plate, can evenly place polycrystalline silicon on the carrier plate.

[0013] Further preferably, an auxiliary support is provided between the extension platform and the ground to further maintain the stability of the extension platform.

[0014] Further preferably, the vacuum clamp is set to an "L" shape. Generally, the width of the packaging liner film wound on the film feeding cylinder is greater than that of the carrier tray. Setting the vacuum clamp to an "L" shape can prevent the vacuum clamp from squeezing the packaging liner film.

[0015] In a further preferred embodiment, a guide frame is fixedly connected to the side of the side plate frame to guide the movement of the tray and ensure that the tray moves smoothly.

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

[0017] (1) In this application, a guide bucket and an upper film assembly are arranged sequentially along the conveying direction of the conveyor belt assembly and above the conveyor belt assembly. After being weighed by the material distribution module, the polycrystalline silicon fragments are guided by the guide bucket to the carrier tray. Then, the carrier tray carrying the polycrystalline silicon fragments is conveyed to the upper film assembly by the conveyor belt assembly. The heat sealing assembly is set above the sealing film of the upper film assembly. The heat sealing assembly is used to cut the film on the upper film assembly and heat-weld the film to the upper tray to form an inner temporary packaging. An extension platform, telescopic parts, vacuum clamps, lifting platform and horizontal U-shaped frame are used in conjunction to re-bag the products after temporary packaging. In this way, a fully automatic, assembly line-style packaging operation can be realized. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the overall structure of the pollution-proof fully automatic polycrystalline silicon packaging and encapsulation machine.

[0019] Figure 2This is a front view of the fully automated polycrystalline silicon packaging and encapsulation machine designed to prevent contamination.

[0020] Figure 3 This is a top-plan view of the fully automated polycrystalline silicon packaging and encapsulation machine designed to prevent contamination.

[0021] Figure 4 This is a three-dimensional structural diagram of the conveyor belt assembly of the fully automatic polycrystalline silicon packaging and encapsulation machine designed to prevent contamination.

[0022] Figure 5 This is a three-dimensional structural diagram of the heat-sealing component of the fully automatic polycrystalline silicon packaging and encapsulation machine designed to prevent contamination.

[0023] Figure 6 This is a three-dimensional structural diagram of the outer packaging of the fully automatic polycrystalline silicon packaging and encapsulation machine designed to prevent contamination.

[0024] In the diagram: 1. Conveyor belt assembly; 101. First frame; 102. Side plate frame; 103. First roller; 104. Second roller; 105. Conveyor belt; 106. Guide frame; 107. First motor; 2. Guide hopper; 3. Film loading assembly; 301. Film receiving cylinder; 302. Film releasing cylinder; 303. Second plate frame; 304. Second motor; 305. Guide cylinder; 4. Heat sealing assembly; 401. Second frame; 402. Lifting component; 403. Well-shaped frame; 404. Square platform; 405. Heat sealing plate; 406. Slitting cutter; 5. Extension platform; 6. Telescopic component; 7. Vacuum clamp; 8. Lifting platform; 9. Horizontal U-shaped frame; 10. Carrier tray. Detailed Implementation

[0025] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0027] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0028] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0029] like Figure 1-6 The invention shown is a fully automatic polycrystalline silicon packaging and encapsulation machine for packaging polycrystalline silicon fragments. Specifically, it includes: a conveyor belt assembly 1, a guide bucket 2, an upper film assembly 3, a heat sealing assembly 4, an extension platform 5, a telescopic component 6, a vacuum clamp 7, a lifting platform 8, and a horizontal U-shaped frame 9.

[0030] Along the conveying direction of the conveyor belt assembly 1 and above the conveyor belt assembly 1, a guide bucket 2 and an upper film assembly 3 are arranged in sequence. After being weighed by the material distribution module, the polycrystalline silicon fragments are guided by the guide bucket 2 to the carrier tray 10. With the help of the conveyor belt assembly 1 carrying the carrier tray 10, the polycrystalline silicon fragments can be laid flat on the carrier tray 10. Then, the carrier tray 10 carrying the polycrystalline silicon fragments is conveyed by the conveyor belt assembly 1 to the upper film assembly 3. The heat sealing assembly 4 is arranged above the sealing film of the upper film assembly 3. The heat sealing assembly 4 is used to cut the film on the upper film assembly 3 and heat-weld the film to the upper tray 10 to form an inner temporary packaging.

[0031] An extension platform 5 perpendicular to the conveying direction of the conveyor belt assembly 1 is fixedly connected to one side of the conveyor belt assembly 1. A telescopic component 6 is fixedly installed at the end of the extension platform 5 away from the conveyor belt assembly 1. The telescopic end of the telescopic component 6 faces the conveyor belt assembly 1 and is fixedly installed with a vacuum clamp 7. The vacuum clamp 7 adopts a matrix suction cup structure, which has a stable gripping effect. The upper surface of the extension platform 5 is provided with drop holes. The shape and size of the drop holes need to completely cover the carrier tray 10. A lifting platform 8 is fixedly installed below the extension platform 5. A horizontal U-shaped frame 9 is fixedly installed at the top telescopic end of the lifting platform 8. The horizontal U-shaped frame 9 corresponds to the drop holes. The lifting platform 8 is used to control the vertical movement of the horizontal U-shaped frame 9. The horizontal U-shaped frame 9 has two flat plates, upper and lower, which can be kept flush with the extension platform 5 under the operation of the lifting platform 8.

[0032] This application utilizes an extension platform 5, a telescopic component 6, a vacuum clamp 7, a lifting platform 8, and a horizontal U-shaped frame 9 in conjunction to perform secondary bagging of products after temporary packaging. The specific process is as follows: the lifting platform 8 is controlled to be in a lowered state, so that the top plate of the horizontal U-shaped frame 9 is flush with the extension platform 5. The telescopic component 6 manipulates the vacuum clamp 7 to grab the product to the left side, and at the same time, an open packaging bag is placed inside the horizontal U-shaped frame 9. Then, the lifting platform 8 is controlled to rise, so that the top plate of the horizontal U-shaped frame 9 is flush with the extension platform 5. The telescopic component 6 manipulates the vacuum clamp 7 to push the product into the packaging bag. This enables fully automated, assembly-line packaging of polycrystalline silicon.

[0033] After the polycrystalline silicon product is packaged as described above, vacuum packaging can be performed at the opening of the packaging bag to ensure that the inner temporary packaging film adheres tightly to the polycrystalline silicon product, preventing the polycrystalline silicon product from being contaminated by air and preventing the polycrystalline silicon products from colliding with each other and generating powder.

[0034] In this embodiment, the conveyor belt assembly 1 includes: a first frame 101, a side plate frame 102, a first roller 103, a second roller 104, a conveyor belt 105, and a first motor 107. The side plate frame 102 is fixedly installed on the top of the first frame 101. The first roller 103 and the second roller 104 are rotatably installed at both ends on the same side of the side plate frame 102. The conveyor belt 105 is installed between the first roller 103 and the second roller 104. The first motor 107 is fixedly installed on the side plate frame 102, and the output end of the first motor 107 is connected to the first roller 103 in a transmission connection.

[0035] The conveyor belt assembly 1 described above is cantilevered on one side, ensuring that the extension platform 5, telescopic component 6, vacuum clamp 7, lifting platform 8, and horizontal U-shaped frame 9 have good installation positions.

[0036] In this embodiment, the upper film assembly 3 includes a fixedly mounted second plate frame 303, a film feeding cylinder 302, a film receiving cylinder 301, a guide cylinder 305, and a second motor 304. The film feeding cylinder 302 and the film receiving cylinder 301 are rotatably mounted at both ends on the same side of the second plate frame 303. The guide cylinder 305 is rotatably mounted on the second plate frame 303 and located between the film feeding cylinder 302 and the film receiving cylinder 301. There are two guide cylinders 305, which are distributed in parallel and spaced apart. The second motor 304 is fixedly mounted on the second plate frame 303 and is connected to the film receiving cylinder 301 in a transmission connection.

[0037] The film feeding tube 302 can be used to wind the inner packaging film. One end of the inner packaging film passes through two guide tubes 305 and is then wound onto the film taking tube 301. The second motor 304 drives the film taking tube 301 to rotate. The inner packaging film between the two guide tubes 305 is used for packaging, thus meeting the heat sealing requirements of the heat sealing assembly 4.

[0038] The heat sealing assembly 4 includes a fixedly mounted second frame 401, a lifting component 402, a square frame 404, a well-shaped frame 403, a slitting cutter 406, and a heat sealing plate 405. The lifting component 402 is fixedly installed on the top of the second frame 401, and the bottom telescopic end of the lifting component 402 passes through the second frame 401. The well-shaped frame 403 is fixedly connected to the inner side of the square frame 404, and the well-shaped frame 403 is fixedly installed with the telescopic end of the lifting component 402. The slitting cutter 406 is fixedly installed on a set of sides of the bottom of the square frame 404 that are perpendicular to the conveying direction of the conveyor belt assembly 1. The heat sealing plate 405 is fixedly installed on a set of sides of the bottom of the square frame 404 that are parallel to the conveying direction of the conveyor belt assembly 1.

[0039] The slitting blade 406 needs to work in conjunction with the heat sealing plate 405 to form a state where the two sides are heat-sealed and the other two sides are open, so that the air inside the temporary packaging can be better removed during subsequent vacuum packaging.

[0040] In this embodiment, the bottom of the guide hopper 2 has a strip-shaped discharge port. This strip-shaped discharge port, combined with the linear movement of the carrier tray 10, allows for the even placement of polycrystalline silicon on the tray 10. An auxiliary support is provided between the extension platform 5 and the ground to further maintain the stability of the extension platform 5. The vacuum clamp 7 is L-shaped. Generally, the width of the packaging liner film wound on the film distribution cylinder 302 is greater than that of the carrier tray 10. Setting the vacuum clamp 7 to an L-shape prevents it from squeezing the packaging liner film. A guide frame 106 is fixedly connected to the side of the side panel frame 102 to guide the movement of the carrier tray 10, ensuring smooth movement of the carrier tray 10.

[0041] Working principle: In use, a robotic arm or unloading machine places the carrier trays 10 at intervals on the conveyor belt 105 of the conveyor belt assembly 1, with one side of the carrier tray 10 attached to or clamped onto the guide frame 106. The first motor 107 drives the first roller 103 to rotate, which in turn drives the conveyor belt 105 and the second roller 104 to rotate, thus driving the carrier trays 10 to move along the direction of movement of the conveyor belt 105. When the carrier tray 10 passes under the guide hopper 2, the polycrystalline silicon fragments under the load are guided by the guide hopper 2 and fall onto the carrier tray 10. Then, as the conveyor belt assembly 1 continues to run, the carrier trays 10 are moved along the conveyor belt 10. The tray 10 is conveyed to the bottom of the upper film assembly 3. The cover film between the film receiving tube 301 and the film releasing tube 302 is positioned directly above the tray 10 under the guidance of a set of guide tubes 305. Then, the lifting component 402 of the heat sealing assembly 4 pushes the well-shaped frame 403 and the square platform 404 downward, so that the heat sealing plate 405 and the cutting blade 406 at the bottom of the square platform 404 cut off a piece of cover film and heat seal it on the top of the tray 10. After the above operation is completed, the film receiving tube 301 rotates and moves the angle, and moves the position of the cover film so that it can be used again. The above process completes the inner temporary packaging.

[0042] Then, control the lifting platform 8 to be in the lowered state, so that the top plate of the horizontal U-shaped frame 9 is flush with the extension platform 5. The telescopic component 6 operates the vacuum clamp 7 to grab the product to the left side, and at the same time, place an open packaging bag inside the horizontal U-shaped frame 9. Then, control the lifting platform 8 to rise, so that the top plate of the horizontal U-shaped frame 9 is flush with the extension platform 5. The telescopic component 6 operates the vacuum clamp 7 to push the product into the packaging bag. In this way, fully automatic, assembly line packaging of polycrystalline silicon can be achieved.

[0043] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A full-automatic polycrystalline silicon packaging and sealing machine capable of preventing pollution, characterized in that, include: A guide bucket (2) and an upper film assembly (3) are sequentially arranged along the conveying direction of the conveyor belt assembly (1) and above the conveyor belt assembly (1). A heat-sealing assembly (4) is disposed above the sealing film of the upper film assembly (3); An extension platform (5) perpendicular to the conveying direction of the conveyor belt assembly (1) is fixedly connected to one side of the conveyor belt assembly (1). A telescopic component (6) is fixedly installed at the end of the extension platform (5) away from the conveyor belt assembly (1). The telescopic end of the telescopic component (6) faces the conveyor belt assembly (1) and is fixedly installed with a vacuum clamp (7). A drop hole is opened on the upper surface of the extension platform (5). A lifting platform (8) is fixedly installed below the extension platform (5). A horizontal U-shaped frame (9) is fixedly installed at the top telescopic end of the lifting platform (8). The horizontal U-shaped frame (9) corresponds to the drop hole.

2. The anti-pollution full-automatic polysilicon packaging and sealing machine according to claim 1, characterized in that, The conveyor belt assembly (1) includes: The first frame (101) has a side plate frame (102) fixedly installed on its top. The first roller (103) and the second roller (104) are rotatably installed at both ends on the same side of the side plate frame (102), and a conveyor belt (105) is installed between the first roller (103) and the second roller (104). The first motor (107) is fixedly installed with the side plate frame (102), and the output end of the first motor (107) is connected to the first roller (103) for transmission.

3. The fully automatic polycrystalline silicon packaging and encapsulation machine with anti-pollution properties as described in claim 2, characterized in that, The upper membrane assembly (3) includes: The second plate frame (303) is fixedly installed; Rotate the film-laying cylinder (302) and film-receiving cylinder (301) which are installed at both ends on the same side of the second plate frame (303); A guide tube (305) is rotatably mounted on the second plate frame (303) and located between the film feeding tube (302) and the film receiving tube (301). Two guide tubes (305) are provided and are distributed in parallel at intervals. A second motor (304) is fixedly installed on the second plate frame (303), and the second motor (304) is connected to the film collection cylinder (301) for transmission.

4. The fully automatic polycrystalline silicon packaging and encapsulation machine with anti-pollution properties as described in claim 2, characterized in that, The heat-sealing assembly (4) includes: The second fixed frame (401); A lifting component (402) is fixedly installed on the top of the second frame (401), and the bottom telescopic end of the lifting component (402) passes through the second frame (401). A square platform (404) is fixedly connected to a well-shaped frame (403) on its inner side, and the well-shaped frame (403) is fixedly installed to the telescopic end of the lifting component (402); Cutting blades (406) are fixedly installed on the bottom of the square frame (404) and on a set of sides perpendicular to the conveying direction of the conveyor belt assembly (1). Heat-sealing plates (405) are fixedly installed on the bottom of the square frame (404) and on a set of sides parallel to the conveying direction of the conveyor belt assembly (1).

5. The anti-pollution full-automatic polysilicon packaging and sealing machine according to claim 2, characterized in that: The bottom of the guide bucket (2) has a strip-shaped discharge port.

6. The anti-pollution full-automatic polysilicon packaging and sealing machine according to claim 2, characterized in that: An auxiliary support is provided between the extension platform (5) and the ground.

7. The anti-pollution full-automatic polysilicon packaging and sealing machine according to claim 2, characterized in that: The vacuum clamp (7) is shaped as an "L".

8. The full-automatic polycrystalline silicon packaging and sealing machine of preventing pollution according to any one of claims 2-7, characterized in that: The side plate frame (102) is fixedly connected with a guide frame (106) on the side.

Images