A device and method for emptying polycrystalline silicon bag materials

Abstract

The present invention discloses a device for emptying polycrystalline silicon bag materials, which comprises a material taking mechanism (1), a conveying mechanism (2), a bag cutting mechanism (3) and a cover dropping mechanism (4) that cooperate with each other. The material taking mechanism (1) comprises a gantry truss (11) and a manipulator (12) that are slidably connected. The conveying mechanism (2) comprises a first conveying channel (21) and a second conveying channel (22). A fixed seat (212) is arranged on the first conveying channel (21), and a pressing claw (213) is connected to the inner bottom of the fixed seat (212). The bag cutting mechanism (3) is arranged at the end of the first conveying channel (21). A material box (7) is arranged on the second conveying channel (22), and a dust suction hood (8) is arranged obliquely above the material box (7). The dust suction hood (8) is connected to one side of the cover dropping mechanism (4). The advantages of the present invention are to reduce labor costs, automate bag taking, bag cutting and material emptying, and improve production progress and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of single crystal production, and particularly relates to a device and method for pouring polycrystalline silicon bag materials. Background Art

[0002] The single crystal production process is a process of loading polycrystalline silicon materials into a single crystal furnace, melting them at high temperature, and then recrystallizing them into single crystal silicon. Currently, the factory products of polycrystalline silicon materials are packaged in PE plastic bags, usually 10 kg per bag, neatly and layer by layer placed in cartons, with about 70 bags per carton.

[0003] When producing single crystal silicon, generally, workers need to take out polycrystalline silicon material bags one by one, cut open the bags with ceramic blades, and then load them into a quartz tube feeder. With the rapid development of the current single crystal industry and a large output, the workload of manual loading into the tube is very large. During the single crystal production process, the grasping, bag cutting, and material pouring of polycrystalline silicon material bags all require manual operations, which not only requires a large amount of labor, increases the burden on operators, but also reduces work efficiency and slows down the production progress. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing polycrystalline silicon bag material pouring is time-consuming and laborious, and provides a device for pouring polycrystalline silicon bag materials, which reduces labor costs, automatically takes bags, cuts bags, and pours materials, improves product profit margins, and speeds up production progress and efficiency.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A device for pouring polycrystalline silicon bag materials includes a material taking mechanism, a conveying mechanism, a bag cutting mechanism, and a cover dropping mechanism that cooperate with each other. The material taking mechanism includes a gantry truss and a manipulator that are slidably connected. A raw material tray for holding material bags is provided below the gantry truss. The conveying mechanism includes a first conveying channel and a second conveying channel. A conveying belt is provided on the first conveying channel, and a group of fixing seats are connected to the conveying belt. A pair of pressing claws are connected to the inner bottom of the fixing seats to rotate, loosen, or press the material bags.

[0007] The second conveying channel is arranged behind the first conveying channel and its height is lower than that of the first conveying channel. The bag cutting mechanism is arranged above one side of the first conveying channel close to the second conveying channel, and the cover dropping mechanism is arranged at the end of the second conveying channel.

[0008] The bag cutting mechanism includes a bag cutting gantry that spans the first conveying channel. A sliding bracket is connected to the bag cutting gantry. The sliding bracket forms a sliding guiding fit with the sliding rail inside the bag cutting gantry. A clamping claw is connected below the sliding bracket. A horizontal tool is also slidably connected below the bag cutting gantry. The tool is arranged directly below the clamping claw to cut off the sealed mouth of the material bag clamped by the clamping claw.

[0009] A material box is provided on the second conveying channel. The material box is arranged directly below the end of the first conveying channel. Above the material box at an oblique angle, there is a dust suction hood for absorbing the dust raised when the material bag on the first conveying channel is poured into the material box.

[0010] The dust suction hood is connected to one side of the lid dropping mechanism. The lid dropping mechanism includes a track arranged above the second conveying channel. A suction cup bracket is connected to the track, and the two form a sliding guiding fit. An elevating suction cup is connected below the suction cup bracket. Below the track, there is also a box lid collection frame for holding box lids. The box lid collection frame is located on the side of the second conveying channel for adsorbing the box lid by the suction cup and moving it above the material box to drop and tightly cover it.

[0011] Further, the manipulator is connected to the gantry truss, and the two form a sliding guiding fit. A camera is connected to the upper part of the manipulator, and a grasping device is connected to the lower end to facilitate using the manipulator to move the material bag in the raw material tray to the first conveying channel.

[0012] Further, the grasping device is of a claw - holding structure or a suction cup structure for selecting the corresponding method according to the different shapes of the material bags.

[0013] Further, the fixed seats are evenly distributed along the conveying belt. It is a box body structure without a lid, and a protective plate is connected to the side of the box body structure. The height of the protective plate is higher than that of the box body structure to facilitate the dumping of the bagged materials.

[0014] Further, there are four raw material trays and four first conveying channels respectively. The first conveying channels are arranged side by side and are aligned with the corresponding raw material trays. The coincidence degree of one end of the first conveying channel and the gantry truss is at least greater than the distance between two fixed seats.

[0015] Further, a recycling box is provided below the first conveying channel for recycling the material bags after pouring.

[0016] To further achieve the purpose of the present invention, a method for pouring polycrystalline silicon bagged materials is also provided. Using the above - mentioned pouring device, the specific steps are as follows, including:

[0017] (1) The three - axis manipulator on the gantry truss visually identifies and grabs the material bag with the seal facing upward.

[0018] (2) Put the material bag into the fixed seat on the first conveying channel. The bottom of the material bag is pressed tightly by the clamping claws at the bottom of the fixed seat and is transported by the conveying belt to below the bag - cutting mechanism.

[0019] (3) The clamping claws fix the lower end of the material bag. At the same time, the clamping claws of the bag - cutting mechanism clamp the upper seal of the material bag. The cutter moves along below the seal to the position above the raw materials and cuts open the material bag. At the same time, to ensure that the material bag is completely cut open, the upper seal part of the material bag needs to be completely cut off.

[0020] (4) The material bag continues to move forward along the conveyor line. When it reaches the end of the first conveying channel, the material bag flips together with the fixed seat, and the raw materials are poured into the material box of the second conveying channel.

[0021] (5) The empty material bag continues to move forward along the conveyor line. When it reaches the empty bag recycling area, the pressing claws release, and the empty bag falls into the recycling box. At the same time, the cut upper seal moves forward along the conveyor line. When it reaches the empty bag recycling area, the clamping claws release, and the upper seal also falls into the recycling box.

[0022] (6) The dust generated during pouring is absorbed by the dust suction hood. The material box moves along the second conveying channel to the lower part of the lid dropping mechanism. The lid dropping mechanism moves the box lid above the material box. There is a positioning device on the second conveying channel. After the material box is aligned with the box lid, it automatically stops and continues to run after the lid is dropped.

[0023] Further, in steps (2) and (3), when the material bag is aligned with the cutting tool, the first conveying channel automatically stops. The clamping claws clamp the seal of the material bag. The cutting tool starts a reciprocating motion and moves forward. After cutting the seal of the material bag, the material bag continues to run along the first conveying channel.

[0024] Further, in step (4), after the material bag flips, the raw materials are exactly poured into the material box, and the upper edge of the material box is higher than the lower edge of the flipped material bag, and the raw materials are emptied by rubbing against the material bag.

[0025] Compared with the prior art, the advantages of the technical solution of the present invention are specifically as follows:

[0026] (1) The present invention uses automated equipment to replace traditional manual handling and pouring, improving the loading efficiency, reducing the labor intensity, and lowering the production cost.

[0027] (2) The present invention integrates material collection, transportation, pouring, and loading. During the whole process, the raw materials are pollution-free, ensuring the qualified quality of the produced single crystal rods. Brief Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the polysilicon bag material pouring device of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the claw-type grasping device of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the suction cup-type grasping device of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the material bag fixed seat of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the bag cutting mechanism of the present invention;

[0033] Figure 6 Schematic structural diagram of the lid-dropping mechanism of the present invention;

[0034] Figure 7 is Figure 1 Partial enlarged view A of Embodiment Example

[0035] To make the present invention more clear and understandable, the following further describes a polysilicon bag material pouring device and a pouring method of the present invention with reference to the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] See Figure 1 , a polysilicon bag material pouring device, comprising a material taking mechanism 1, a conveying mechanism 2, a bag cutting mechanism 3 and a lid-dropping mechanism 4 that cooperate with each other, and is characterized in that:

[0037] See Figure 1 , Figure 2 and Figure 3 , the material taking mechanism 1 includes a gantry truss 11 and a manipulator 12 that are slidably connected. Four raw material trays 5 for holding the material bags 6 are provided below the gantry truss 11. The manipulator 12 forms a sliding guiding fit with the gantry truss 11, and a camera 121 is connected to the upper part of the manipulator 12, and a grasping device 122 is connected to the lower end. The grasping device 122 is a claw type structure 1221 or a suction cup type structure 1222. In this embodiment, the claw type structure is adopted;

[0038] See Figure 1 and Figure 4 , the conveying mechanism 2 includes a first conveying channel 21 and a second conveying channel 22. There are four first conveying channels 21, and they are arranged side by side. Each first conveying channel 21 is aligned with the corresponding raw material tray 5. One end of the first conveying channel 21 has a coincidence degree with the gantry truss 11 that is at least greater than the distance between two fixed seats 212;

[0039] A conveying belt 211 is provided on the first conveying channel 21. A group of fixed seats 212 are connected to the conveying belt 211. A pair of pressing claws 213 are connected to the inner bottom of the fixed seats 212 for rotating, loosening or pressing the material bag;

[0040] See Figure 1 , Figure 4 and Figure 7 , the fixed seats 212 are evenly distributed along the conveying belt 211. The distance between two adjacent fixed seats 212 is 700 mm. It is a box structure without a lid, and a protective plate 212a is connected to the side of the box structure. The height of the protective plate 212a is higher than the height of the box structure to facilitate the pouring of the bag material;

[0041] The second conveying channel 22 is arranged behind the first conveying channel 21 and its height is lower than that of the first conveying channel 21. The bag cutting mechanism 3 is 350 mm away from the end of the first conveying channel 21. The lid dropping mechanism 4 is arranged at the end of the second conveying channel 22.

[0042] See Figure 1 and Figure 5 , the bag cutting mechanism 3 includes a bag cutting gantry 31 straddling the first conveying channel 21. A sliding bracket 32 is connected to the bag cutting gantry 31. The sliding bracket 32 forms a sliding guiding fit with the slide rail inside the bag cutting gantry 31. A clamping jaw 33 is connected below the sliding bracket 32. A horizontal cutting tool 34 is also slidably connected below the bag cutting gantry 31. The cutting tool 34 is arranged directly below the clamping jaw 33 for cutting off the sealed mouth of the bag clamped by the clamping jaw.

[0043] A material box 7 is arranged on the second conveying channel 22. The material box 7 is arranged directly below the end of the first conveying channel 21. A dust suction hood 8 is arranged obliquely above the material box 7 for absorbing the dust raised when the bag on the first conveying channel is poured into the material box.

[0044] See Figure 1 and Figure 6 , the dust suction hood 8 is connected to one side of the lid dropping mechanism 4. The lid dropping mechanism 4 includes a track 41 arranged above the second conveying channel 22. A suction cup bracket 42 that cooperates with each other is connected to the track 41. The two form a sliding guiding fit. A lifting suction cup 43 is connected below the suction cup bracket 42. A box lid collection frame 45 for placing the box lid 44 is also arranged below the track 41. The box lid collection frame 45 is located on the side of the second conveying channel 22 for adsorbing the box lid through the suction cup and moving it above the material box to drop and cover tightly.

[0045] In this embodiment, a recycling box 9 is also arranged below the first conveying channel 21 for recycling the bags after pouring the materials.

[0046] When using the pouring device of the present invention for pouring, the specific steps are as follows:

[0047] (1) The three-axis manipulator 12 on the gantry truss 11 visually recognizes and grabs the bag with the sealed mouth facing up.

[0048] (2) Put the bag 6 into the fixing seat 212 of the first conveying channel 21. The bottom of the bag 6 is pressed tightly by the pressing claw 213 at the bottom of the fixing seat 212 and is transported to below the bag cutting mechanism 3 by the conveyor belt.

[0049] (3) The pressing claw 213 fixes the lower end of the bag 6. At the same time, the clamping jaw 33 of the bag cutting mechanism 3 clamps the sealed mouth of the upper part of the bag 6. The cutting tool 34 moves along below the sealed mouth and cuts open the bag 6 at the position above the raw material. At the same time, in order to ensure that the bag is completely cut open, the upper sealed part of the bag needs to be completely cut off.

[0050] (4) The material bag 6 continues to move forward along the conveyor line to the end of the first conveying channel 21. The material bag 6 flips together with the fixed seat 212. After the material bag 6 flips, the raw materials are exactly poured into the material box 7, and the upper edge of the material box 7 is higher than the lower edge of the flipped material bag 6, and the raw materials are emptied by scraping the material bag.

[0051] (5) The empty material bag continues to move forward along the conveyor line to the empty bag recycling area. The pressing claw 213 is released, and the empty bag falls into the recycling box 9. At the same time, the cut upper seal moves forward along the conveyor line to the empty bag recycling area, the clamping claw 33 is released, and the upper seal also falls into the recycling box 9.

[0052] (6) The dust generated during pouring is absorbed by the dust suction hood 8. The material box 7 moves along the second conveying channel 22 to the lower part of the lid dropping mechanism 4. The lid dropping mechanism 4 moves the box lid 44 above the material box 7. A positioning device is provided on the second conveying channel 22. After the material box 7 is aligned with the box lid 44, it automatically stops, and continues to run after the lid is dropped, for barreling or warehousing.

[0053] The present invention introduces an automated loading device, which replaces manual bag taking, bag cutting, and barreling with intelligent devices, reduces labor costs, and improves loading efficiency.

[0054] Except for the above embodiments, the present invention may also have other implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A device for emptying polycrystalline silicon bag materials, comprising a material taking mechanism (1), a conveying mechanism (2), a bag cutting mechanism (3) and a lid dropping mechanism (4) which cooperate with each other, characterized in that: The material taking mechanism (1) includes a gantry truss (11) and a manipulator (12) which are slidably connected; The manipulator (12) is connected to the gantry truss (11), and the two form a sliding and guiding fit. A camera (121) is connected to the upper part of the manipulator (12), and a grasping device (122) is connected to the lower end; A raw material tray (5) for holding the material bag (6) is arranged below the gantry truss (11). The conveying mechanism (2) includes a first conveying channel (21) and a second conveying channel (22). A conveying belt (211) is arranged on the first conveying channel (21), and a group of fixing seats (212) are connected to the conveying belt (211). A pair of pressing claws (213) are connected to the inner bottom of the fixing seats (212); The fixing seats (212) are distributed at equal intervals along the conveying belt (211). It is a box structure without a lid, and a protective plate (212a) is connected to the side of the box structure. The height of the protective plate (212a) is higher than the height of the box structure; The second conveying channel (22) is arranged behind the first conveying channel (21) and its height is lower than that of the first conveying channel (21). The bag cutting mechanism (3) is arranged above one side of the first conveying channel (21) close to the second conveying channel (22), and the lid dropping mechanism (4) is arranged at the end of the second conveying channel (22); There are four raw material trays (5) and first conveying channels (21) respectively. The first conveying channels (21) are arranged side by side and are aligned with the corresponding raw material trays (5). One end of the first conveying channel (A) coincides with the gantry truss (11) by at least more than the distance between two fixing seats (212); The bag cutting mechanism (3) includes a bag cutting gantry (31) straddling the first conveying channel (21). A sliding bracket (32) is connected to the bag cutting gantry (31). The sliding bracket (32) forms a sliding and guiding fit with the slide rail in the bag cutting gantry (31). A clamping jaw (33) is connected below the sliding bracket (32). A horizontal cutting tool (34) is also slidably connected below the bag cutting gantry (31). The cutting tool (34) is arranged directly below the clamping jaw (33); A material box (7) is arranged on the second conveying channel (22). The material box (7) is arranged directly below the end of the first conveying channel (21). A dust suction hood (8) is arranged obliquely above the material box (7). A recycling box (9) is arranged below the first conveying channel (21); The dust suction hood (8) is connected to one side of the lid dropping mechanism (4). The lid dropping mechanism (4) includes a track (41) arranged above the second conveying channel (22). A suction cup bracket (42) which cooperates with each other is connected to the track (41). The two form a sliding and guiding fit. A lifting suction cup (43) is connected below the suction cup bracket (42). A box lid collecting frame (45) for holding the box lid (44) is also arranged below the track (41). The box lid collecting frame (45) is located on the side of the second conveying channel (22).

2. The polysilicon bag discharging device according to claim 1, wherein: The grasping device (122) is of a claw type structure (1221) or a suction cup type structure (1222).

3. A method for discharging polysilicon bag materials using the device according to claim 1, the specific steps are as follows, wherein: Step 1: The three-axis manipulator on the gantry truss (11) visually identifies and grasps the material bag (6) with the seal of the material bag (6) facing upward; Step 2: Put the material bag (6) into the fixed seat (212) of the first conveying channel (21), the bottom of the material bag (6) is pressed tightly by the pressing claws (213) at the bottom of the fixed seat (212), and is transported by the conveying belt (211) to below the bag cutting mechanism (3); Step 3: The pressing claws (213) fix the lower end of the material bag (6), and at the same time, the clamping claws (33) of the bag cutting mechanism (3) clamp the seal at the upper part of the material bag (6), and the cutter (34) moves along below the seal and cuts open the material bag (6) at the position above the raw material; Step 4: The material bag (6) continues to move forward along the conveying line. When it reaches the end of the first conveying channel (21), the material bag (6) rotates together with the fixed seat (212) to pour the raw material into the material box (7) of the second conveying channel (22); Step 5: The empty material bag continues to move forward along the conveying line to the empty bag recycling area. The pressing claws (213) are released, and the empty bag falls into the recycling box (9). At the same time, the cut upper seal moves forward along the conveying line to the empty bag recycling area. The clamping claws (33) are released, and the upper seal also falls into the recycling box (9); Step 6: The dust generated during pouring is absorbed by the dust suction hood (8). The material box (7) moves along the second conveying channel (22) to below the cover dropping mechanism (4). The cover dropping mechanism (4) moves the box cover (44) above the material box (7). There is a positioning device on the second conveying channel (22). After the material box (7) is aligned with the box cover (44), it automatically stops. After the cover is dropped, it continues to run.

4. The polysilicon bag discharging method according to claim 3, wherein: In the above-mentioned Steps 2 and 3, when the material bag (6) is aligned with the cutter (34), the first conveying channel (21) automatically stops. The clamping claws (33) clamp the seal of the material bag (6), the cutter (34) starts a reciprocating motion and moves forward. After cutting open the seal of the material bag (6), the material bag (6) continues to run along the first conveying channel (21).

5. The polysilicon bag discharging method according to claim 3, wherein: In the above-mentioned Step 4, after the material bag (6) is turned over, the raw material is just poured into the material box (7), and the upper edge of the material box (7) is higher than the lower edge of the turned-over material bag (6), and the raw material is poured out completely by rubbing against the material bag (6).

Images