Feeding machine

Abstract

The utility model relates to a charging machine which comprises a main bin, a material conveying mechanism, a charging pipe and a material cutting mechanism. The material conveying mechanism comprises a material driver and a material conveying pipe, a feeding port in the material conveying pipe is communicated with a material outlet of the main bin, a discharging port in the material conveying pipe is communicated with an inlet of the feeding pipe, materials in the main bin enter the material conveying pipe due to dead weight, and the material driver conveys the materials in the material conveying pipe into the feeding pipe. The material cutting mechanism comprises a blocking piece and a moving mechanism driving the blocking piece to move, a first avoiding opening is formed in the position, close to the discharging opening, of the material conveying pipe, and the moving mechanism drives the blocking piece to block or release the discharging opening of the material conveying pipe through the first avoiding opening. When the feeding machine stops feeding, the moving mechanism drives the blocking piece to block the discharging port of the material conveying pipe, the situation that residual materials in the material conveying pipe slide into the feeding pipe due to inertia or accidental shaking of the material conveying pipe can be effectively prevented, and therefore material breaking can be conducted in time.

Description

Technical Field

[0001] The present application relates to a single crystal furnace, in particular to a charging machine for a single crystal furnace. Background Art

[0002] In order to improve the crucible utilization rate of the single crystal furnace and increase the output of a single furnace, the secondary charging method is usually used to load silicon materials into the quartz crucible in batches to increase production capacity and reduce energy consumption. The secondary charging often uses a feeder to continuously add silicon materials to the crucible in the main furnace chamber of the single crystal furnace.

[0003] Existing feeders usually include a silo, in which silicon materials are stored, a discharge port is provided at the bottom of the silo, a discharge valve is installed on the discharge port, a silicon material conveying device is connected below the discharge port, a feeding pipe is provided at the bottom of the silicon material conveying device, and the feeding pipe is used to be inserted into the single crystal furnace body to feed materials into the crucible. This feeder has the following disadvantages: 1. Since the discharge valve is provided at the lower port of the silo, when it is necessary to stop feeding silicon materials, the discharge valve will be closed, but the remaining silicon materials in the silicon material conveying device may continue to fall into the crucible through the feeding pipe, resulting in untimely response to material interruption; 2. Since the silicon materials in the silo are heavy, the discharge valve is directly provided at the lower port of the silo, and the silicon materials will directly press on the discharge valve, which not only makes it difficult to close the discharge valve, but also easily causes the discharge valve switch to fail and be damaged due to the weight pressure; 3. The feeding pipe is easy to be blocked. Utility Model Content

[0004] Aiming at the problem that the existing feeders cannot cut off the materials in time, the present application provides a feeder which can cut off the materials in time.

[0005] The technical solution of the present application is as follows: A feeder, including a main material bin, a material conveying mechanism, a feed pipe and a material cutting mechanism; wherein:

[0006] The material conveying mechanism includes a material driver and a material conveying pipe. The upper side wall of the material conveying pipe is provided with a feed port, and the lower side wall of the material conveying pipe is provided with a discharge port. The feed port on the material conveying pipe is connected with the material outlet of the main material bin, and the discharge port on the material conveying pipe is connected with the inlet of the feeding pipe. The material in the main material bin enters the material conveying pipe due to its own weight. The material driver is configured to convey the material in the material conveying pipe to the feeding pipe. The material conveying pipe is arranged horizontally or tilted downward.

[0007] The material cutting mechanism includes a blocking member and a moving mechanism for driving the blocking member to move. A first avoidance opening is provided on the material conveying pipe near the discharge port. The moving mechanism drives the blocking member to block or release the discharge port of the material conveying pipe through the first avoidance opening.

[0008] When the feeder needs to stop feeding, the material driver is controlled to stop moving, and the blocking piece is driven by the moving mechanism to block the discharge port of the material conveying pipe, which can effectively prevent the remaining material in the material conveying pipe from sliding into the feeding pipe due to inertia or accidental shaking of the material conveying pipe, thereby cutting off the material in time.

[0009] Optionally, the plugging member includes a guide section and a plugging head;

[0010] The first end of the guide section is connected to the output end of the moving mechanism, the second end of the guide section is connected to the plugging head, the guide section is built into the first avoidance opening, the outer peripheral wall of the guide section is in contact with the inner wall of the first avoidance opening, and the plugging head is used to block or release the discharge port of the material conveying pipe.

[0011] When the blocking member moves, the inner side wall of the first avoidance opening guides the movement of the guide section in the blocking member, thereby ensuring that the blocking head can accurately block or release the discharge port of the material conveying pipe.

[0012] Optionally, the feeding end of the feeding tube is a bell-shaped mouth that is wide at the top and narrow at the bottom, and the plugging head is a frustum whose diameter gradually increases from top to bottom. The diameter of the lower end face of the frustum is smaller than the diameter of the upper port of the bell-shaped mouth and larger than the diameter of the lower port of the bell-shaped mouth. After the plugging head moves downward, the lower end of the plugging head enters and blocks the bell-shaped mouth of the feeding tube; after the plugging head moves upward, the lower end of the plugging head moves out of the bell-shaped mouth of the feeding tube.

[0013] The plugging head with a small upper and large lower cone body cooperates with the bell mouth of the feeding end of the feeding pipe with a wide upper and narrow lower part to control the cutting or discharging of the material at the discharge port of the material conveying pipe. The contact area between the plugging head and the inner part of the bell mouth of the feeding pipe is small, and the material is not easily stuck at the contact point, which will not affect the lifting and lowering of the plugging head.

[0014] Optionally, a material guide pipe is installed on the material outlet of the material conveying pipe, and the material guide pipe is configured to be inserted into the feeding pipe from the inlet of the feeding pipe, and there is a gap between the material guide pipe and the feeding pipe.

[0015] By configuring a guide pipe on the material conveying pipe, the material conveying pipe can discharge materials smoothly; when the material conveying pipe conveys materials, the guide pipe may shake along with the material conveying pipe. By setting a gap between the guide pipe and the feeding pipe to leave space for the guide pipe to shake, the feeding pipe can be prevented from shaking due to the shaking of the guide pipe, thereby avoiding affecting the feeding of the feeding pipe.

[0016] Optionally, the feed end of the material guide pipe is a bell-shaped mouth that is wide at the top and narrow at the bottom, and the plugging head is a frustum whose diameter gradually increases from top to bottom. The diameter of the lower end face of the frustum is smaller than the diameter of the upper port of the bell-shaped mouth and larger than the diameter of the lower port of the bell-shaped mouth. After the plugging head moves downward, the lower end of the plugging head enters and blocks the bell-shaped mouth of the material guide pipe; after the plugging head moves upward, the lower end of the plugging head moves out of the bell-shaped mouth of the material guide pipe.

[0017] The plugging head with a small upper and large lower cone body cooperates with the bell mouth of the feed end of the material guide pipe which is wide at the top and narrow at the bottom to control the cutting or discharging of the material at the discharge port of the material conveying pipe. The contact area between the plugging head and the inner wall of the bell mouth of the material guide pipe is small, the material is not easily stuck at the contact point, and it will not affect the lifting and lowering of the plugging head.

[0018] Optionally, the moving mechanism includes a driving member and a connecting rod assembly; the connecting rod assembly includes a connecting rod seat, a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged to the connecting rod seat, the second end of the first connecting rod is hinged to the first end of the second connecting rod, the second end of the second connecting rod is hinged to the blocking member, and the rod body of the first connecting rod is hinged to the driving end of the driving member;

[0019] The driving member is configured to drive the connecting rod assembly to move, and then drive the blocking member to move.

[0020] The driving member drives the connecting rod assembly and then drives the blocking member to move. The connecting rod assembly can change the direction of movement, and can make full use of the narrow space above the material conveying pipe to avoid interference.

[0021] Optionally, the feeder also includes an outer shell and a sealing tube, the first end of the sealing tube is sealingly mounted on the outer shell, and the sealing tube and the interior of the outer shell are connected, and the second end of the sealing tube is sealed by a flange; the driving member of the movable mechanism is mounted on the outside of the sealing tube, and a second avoidance opening is opened on the tube wall of the sealing tube, the driving end of the driving member passes through the second avoidance opening and is hinged to the rod body of the first connecting rod, the second avoidance opening is sealed, the connecting rod seat is mounted on the inner wall of the sealing tube, the connecting rod assembly is located in the sealing tube and the outer shell, the blocking member extends into the material conveying pipe and is located above the discharge port of the material conveying pipe, the upper part of the outer shell is open, and the open part is sealed by a sealing cover that can be opened and closed, and the sealing cover is also configured to cover the feed port of the main silo, and the feeding pipe extends downward to the outside of the outer shell.

[0022] By configuring multiple seals, the sealed environment inside the feeder can be guaranteed.

[0023] Optionally, a support is installed on the outer tube wall of the sealing tube, the driving member includes an air cylinder or an oil cylinder, the cylinder body of the air cylinder or the oil cylinder is fixed on the support, the driving member also includes a connecting seat and a rod, the connecting seat is installed on the end of the telescopic rod of the air cylinder or the oil cylinder, the first end of the rod is fixedly connected to the connecting seat, the rod body of the rod passes through the second avoidance opening, the second end of the rod is hinged to the rod body of the first connecting rod, a bellows is sleeved on the outside of the rod, and the first end of the bellows is sealed and installed on the connecting seat, and the second end of the bellows is sealed and installed in the second avoidance opening.

[0024] The driving member is connected to the connecting rod assembly through a connecting seat and a rod member, which is convenient for assembly and disassembly; a bellows is sleeved around the rod member to play a sealing role.

[0025] Optionally, the feeder further comprises a weighing sensor, which is located inside the housing, with the upper end of the weighing sensor fixed to the housing, and the lower end of the weighing sensor connected to the main silo.

[0026] By configuring the weighing sensor between the outer shell and the main silo, the material in the main silo can be accurately weighed, thereby controlling the amount of material released.

[0027] Optionally, the feeder also includes an auxiliary material bin and a feeding branch pipe, the auxiliary material bin is installed outside the outer shell, the tube body of the feeding branch pipe passes through the side wall of the outer shell, the first end of the feeding branch pipe is connected to the discharge port of the auxiliary material bin, and the second end of the feeding branch pipe is installed on the side tube wall of the feeding pipe and the two are connected.

[0028] By configuring an auxiliary material bin, additional additives can be stored, and the additives can be added to the feeding pipe through the feeding branch pipe, which is convenient for adding the additives.

[0029] Optionally, a vent hole is provided on the feeding pipe, and the vent hole is located on the opposite side of the connection between the feeding pipe and the feeding branch pipe; the vent hole is configured to be connected to the air source to clear the accumulated material in the feeding pipe and the feeding branch pipe.

[0030] Blowing gas into the feeding pipe through the vent hole can clear the accumulated material in the feeding pipe and the feeding branch pipe to prevent the feeding pipe and the feeding branch pipe from being blocked.

[0031] Optionally, the feeder also includes a tee pipe, the feeding branch pipe is connected to the auxiliary material bin through the tee pipe, the branch pipe of the tee pipe is connected to the discharge port of the auxiliary material bin, the main pipe of the tee pipe is coaxially connected to the feeding branch pipe, and the free end of the main pipe of the tee pipe is installed with a perspective window.

[0032] By configuring a tee pipe and installing a perspective window at the free end of the tee pipe, it is possible to observe through the perspective window whether there is material accumulation in the feeding branch pipe and the feeding pipe, so as to prepare for subsequent processing.

[0033] Optionally, the material driver adopts a vibrator, and the vibrator is used to vibrate the material conveying pipe.

[0034] The vibrator is used to vibrate the material conveying pipe to convey the material, which has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of a three-dimensional structure of an optional embodiment of the present application;

[0036] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure after removing the outer shell, auxiliary silo and bracket;

[0037] Figure 3 It is a cross-sectional view of the plugging member in the present application installed on the material conveying pipe;

[0038] Figure 4 This is a schematic diagram of the three-dimensional structure of the material cutting mechanism in the present application installed on the sealing tube;

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure of the material cutting mechanism in this application.

[0040] Figure 1 to Figure 5 Including:

[0041] Feeder 1;

[0042] Main silo 10;

[0043] Material conveying mechanism 20, material driver 21, material conveying pipe 22, material guide pipe 221, bell mouth 222, first avoidance port 223, feed port 224, discharge port 225, feed pipe section 226, accommodating pipe section 227, guide pipe section 228, square pipe 229;

[0044] Feeding pipe 30, feeding branch pipe 31, vent hole 32;

[0045] Cutting mechanism 40, plugging member 41, guide section 411, plugging head 412, moving mechanism 42, driving member 421, connecting rod assembly 422, first connecting rod 431, second connecting rod 432, connecting rod seat 433, connecting seat 423, rod 424, bellows 425;

[0046] Housing 50, sealing cover 51, bracket 52;

[0047] Sealing tube 60, support 61, second avoidance opening 62;

[0048] Weighing sensor 70;

[0049] Auxiliary silo 80 , three-way pipe 81 , and perspective window 82 . DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0051] like Figure 1 , Figure 2 As shown, the present application is a feeder 1 that can be used to add materials. For example, the feeder 1 of the present application can be matched with a single crystal furnace to continuously add silicon materials into the crucible of the main furnace chamber of the single crystal furnace.

[0052] The feeder 1 mainly includes a main material bin 10 , a material conveying mechanism 20 , a feed pipe 30 and a material cutting mechanism 40 .

[0053] Wherein: the material conveying mechanism 20 includes a material driver 21 and a material conveying pipe 22, a feed port 224 is provided on the upper side wall of the material conveying pipe 22, a discharge port 225 is provided on the lower side wall of the material conveying pipe 22, the feed port 224 on the material conveying pipe 22 is communicated with the material outlet of the main material bin 10, the discharge port 225 on the material conveying pipe 22 is communicated with the inlet of the feeding pipe 30, the material in the main material bin 10 enters the material conveying pipe 22 due to its own weight, the material driver 21 is configured to convey the material in the material conveying pipe 22 to the feeding pipe 30, the material conveying pipe 22 is horizontally placed or tilted downward; when tilted downward, the discharge port 225 of the material conveying pipe 22 is at a lower position than the feed port 224; in order to prevent the material from sliding down along the inclined surface in the material conveying pipe 22 due to inertia after the feeding is stopped, the tilt angle of the material conveying pipe 22 should not be too large.

[0054] The material cutting mechanism 40 includes a blocking member 41 and a moving mechanism 42 for driving the blocking member 41 to move. A first avoidance opening 223 is provided at a position near the discharge port 225 on the material conveying pipe 22. The moving mechanism 42 drives the blocking member 41 to block or release the discharge port 225 of the material conveying pipe 22 through the first avoidance opening 223. Figure 3 .

[0055] When the feeder 1 stops feeding, the moving mechanism 42 drives the blocking member 41 to block the discharge port 225 of the material conveying pipe 22, which can effectively prevent the remaining material in the material conveying pipe 22 from sliding out of the discharge port 225 into the feeding pipe 30 due to inertia or accidental shaking of the material conveying pipe 22, thereby cutting off the material in time.

[0056] like Figure 4 , Figure 5 As shown in FIG. 1 , as an optional embodiment, the plugging member 41 includes a guide section 411 and a plugging head 412. The first end (i.e. Figure 4 The upper end of the guide section 411 is connected to the output end of the moving mechanism 42, and the second end of the guide section 411 (i.e. Figure 4 The lower end of the plug is connected to the plug 412. Figure 3The guide section 411 is built into the first avoidance opening 223, the outer peripheral wall of the guide section 411 is in contact with the inner side wall of the first avoidance opening 223, and the plug 412 is used to block or release the discharge port 225 of the material conveying pipe 22. Optionally, the material conveying pipe 22 includes a feed pipe section 226, a receiving pipe section 227, a guide pipe section 228 and a horizontally placed square pipe 229, both ends of the square pipe 229 are closed, and the upper side wall of the first end of the square pipe 229 is connected to the feed pipe section 226, the feed pipe 226 is used to communicate with the material outlet of the main material bin 10 of the main material bin 10, and the pipe mouth of the feed pipe 226 serves as the feed port 224. The lower side wall of the second end of the square tube 229 is provided with an opening as a discharge port 225, the upper side wall of the second end of the square tube 229 is connected to the accommodating tube section 227, the upper end of the accommodating tube section 227 is connected to the guide tube section 229, the inside of the guide tube section 229 is used as the first avoidance port 223, the guide section 411 is a cylinder, the guide tube section 229 is a circular tube, the outer peripheral wall of the cylinder is in contact with the inner tube wall of the guide tube section 229, and the guide tube section 229 is used as a guide for the movement of the guide section 411 , to ensure that the plugging head 412 can accurately block the discharge port 225 or release the discharge port 225, the accommodating pipe section 227 is also a round tube, and the inner diameter of the accommodating pipe section 227 is larger than the inner diameter of the guide pipe section 229. The accommodating pipe section 227 is used to accommodate the plugging head 412. When the plugging head 412 moves upward to release the discharge port 225, the plugging head 412 moves into the accommodating pipe section 227 to prevent the plugging head 412 from affecting the material in the square tube 229 from being transported to the discharge port 225.

[0057] By driving the guide section 411 through the moving mechanism 42 and then driving the plugging head 412 to block or release the discharge port 225 of the material conveying pipe 22, the disconnection or discharge of the discharge port 225 of the material conveying pipe 22 can be timely controlled.

[0058] Figure 2 , Figure 3 In the illustrated embodiment, a material guide pipe 221 is installed below the material outlet 225 of the material conveying pipe 22, and the material guide pipe 221 is configured to be inserted into the feeding pipe 30 from the inlet of the feeding pipe 30, and there is a gap between the material guide pipe 221 and the feeding pipe 30. That is, the feeding pipe 30 and the material guide pipe 221 are not in direct contact, but can transmit materials.

[0059] By configuring a guide pipe 221 on the material conveying pipe 22 to serve as a guide, the material conveying pipe 22 can discharge materials smoothly. When the material conveying pipe 22 conveys materials, the guide pipe 221 may vibrate along with the material conveying pipe 22. By providing a gap between the guide pipe 221 and the feeding pipe 30 to leave space for the guide pipe 221 to vibrate, the feeding pipe 30 can be prevented from vibrating due to the vibration of the guide pipe 221, thereby preventing the feeding of the feeding pipe 30 from being affected.

[0060] like Figure 3 As shown, optionally, the feed end of the guide tube 221 is a bell mouth 222 which is wide at the top and narrow at the bottom, and the plugging head 412 is a frustum whose diameter gradually increases from top to bottom, and the diameter of the lower end face of the frustum is smaller than the diameter of the upper port of the bell mouth 222 and larger than the diameter of the lower port of the bell mouth 222. After the plugging head 412 moves downward, the lower end of the plugging head 412 enters and blocks the bell mouth 222 of the guide tube 221; after the plugging head 412 moves upward, the lower end of the plugging head 412 moves out from the bell mouth 222 of the guide tube 221.

[0061] The plugging head 412 with a small top and a large bottom is matched with the bell mouth 222 of the feeding end of the guide tube 221 with a wide top and a narrow bottom to control the material breaking or discharging of the material outlet 225 of the material conveying tube 22. The plugging head 412 has a small contact area with the inner wall of the bell mouth 222 of the guide tube 221, and the material is not easily stuck at the contact point, which will not affect the lifting and lowering of the plugging head 412. In addition, the plugging head 412 is a truncated cone body with a gradually increasing diameter from top to bottom. Even if the conveyed material hits the plugging head 412, it will slide down along the outer peripheral wall of the plugging head 412, so that the material is not easily accumulated on the outer peripheral surface of the plugging head 412.

[0062] and Figure 2 , Figure 3 Different from the embodiment shown, in another embodiment, the feeding pipe 30 can be directly connected to the discharge port 225 of the material conveying pipe 22, the feeding pipe 30 can be directly fixedly connected to the discharge port 225 of the material conveying pipe 22, and the feeding pipe 30 can also not contact the discharge port 225. There is a gap between the feeding pipe 30 and the discharge port 225. The gap is small, so that the material will not leak out from the gap, and the material conveying pipe 22 will not affect the feeding pipe 30 when it shakes. At this time, the feeding end of the feeding pipe 30 can be set as a bell mouth with a wide top and a narrow bottom, and the plugging head 412 can be set as a truncated cone body with a gradually increasing diameter from top to bottom. The diameter of the lower end face of the truncated cone body is smaller than the diameter of the upper port of the bell mouth and larger than the diameter of the lower port of the bell mouth. After the plugging head 412 moves downward, the lower end of the plugging head 412 enters and blocks the bell mouth of the feeding pipe 30; after the plugging head 412 moves upward, the lower end of the plugging head 412 moves out of the bell mouth of the feeding pipe 30.

[0063] The plugging head 412 with a small upper and large lower cone body cooperates with the bell mouth of the feeding end of the feeding pipe 30 with a wide upper and narrow lower part to control the interruption or discharge of the material at the discharge port 225 of the material conveying pipe 22. The contact area between the plugging head 412 and the inner wall of the bell mouth of the feeding pipe 30 is small, and the material is not easily stuck at the contact point, which will not affect the lifting and lowering of the plugging head 412.

[0064] like Figure 4 , Figure 5As shown, as an optional embodiment, the moving mechanism 42 includes a driving member 421 and a connecting rod assembly 422; the connecting rod assembly 422 includes a connecting rod seat 433, a first connecting rod 431 and a second connecting rod 432, the first end of the first connecting rod 431 is hinged on the connecting rod seat 433, the second end of the first connecting rod 431 is hinged on the first end of the second connecting rod 432, the second end of the second connecting rod 432 is hinged on the blocking member 41, and the rod body of the first connecting rod 431 is hinged to the driving end of the driving member 421; the driving member 421 is configured to drive the connecting rod assembly 422 to move, and then drive the blocking member 41 to move. Specifically, when the driving end of the driving member 421 moves downward, the driving end drives the first connecting rod 431 to swing downward around the connecting rod seat 433, the first connecting rod 431 drives the second connecting rod 432 to move, and the second connecting rod 432 drives the blocking member 41 to move downward; when the driving end of the driving member 421 retracts upward, the driving end drives the first connecting rod 431 to swing upward around the connecting rod seat 433, the first connecting rod 431 drives the second connecting rod 432 to move, and the second connecting rod 432 drives the blocking member 41 to move upward.

[0065] The driving member 421 drives the connecting rod assembly 422 and then drives the blocking member 41 to move. The connecting rod assembly 422 can change the direction of movement, and can fully utilize the narrow space above the material conveying pipe 22 to avoid interference.

[0066] like Figure 1 , Figure 2 As shown, optionally, the feeder 1 also includes a shell 50 and a sealing tube 60, and the shell 50 is mounted on a bracket 52. The first end of the sealing tube 60 is sealed and mounted on the shell 50, and the sealing tube 60 is connected to the inside of the shell 50, and the second end of the sealing tube 60 is sealed by a flange. The shell 50 is open on the top, and the open part is sealed by a sealing cover 51 that can be opened and closed. The sealing cover 51 is also configured to cover the feed port of the main material bin 10, and the feeding tube 30 extends downward to the outside of the shell 50. It should be noted that the bracket 52 and the shell 50 can be detachably connected by screws, etc. When the feeder 1 is used in conjunction with a single crystal furnace, the feeding tube 30 of the feeder 1 needs to be inserted into the entrance of the single crystal furnace cover. In order to prevent the bracket 50 from affecting the coordination between the feeder 1 and the single crystal furnace, the bracket 50 can be disassembled. When the feeder 1 is not used in conjunction with a single crystal furnace, the bracket 52 is mounted on the housing 50 , and the feeder 1 is placed on the ground or the like through the bracket 52 , so that the feeder 1 can be tested or operated.

[0067] like Figure 4As shown, the driving member 421 of the moving mechanism 42 is installed on the outside of the sealing tube 60, and a second avoidance opening 62 is opened on the tube wall of the sealing tube 60. The driving end of the driving member 421 passes through the second avoidance opening 62 and is hinged to the rod body of the first connecting rod 431. The second avoidance opening 62 is sealed, and the connecting rod seat 433 is installed on the inner wall of the sealing tube 60. The connecting rod assembly 422 is located in the sealing tube 60 and the outer shell 50. The blocking member 41 extends into the material conveying pipe 22 and is located above the discharge port 225 of the material conveying pipe 22.

[0068] When the feeder 1 is used in conjunction with a single crystal furnace, the feeding tube 30 of the feeder 1 is inserted into the entrance of the single crystal furnace cover, and a sealing bellows is sleeved on the outside of the pipe section of the feeding tube 30 located between the outer shell 50 of the feeder 1 and the single crystal furnace cover, one end of the sealing bellows is fixed on the outer shell 50, and the other end of the sealing bellows is fixed on the single crystal furnace cover to achieve sealing at the insertion point of the feeding tube 30 and the single crystal furnace cover. The feeder 1 is used to feed the crucible in the single crystal furnace, and a sealed environment is required in the feeder 1. The present application configures multiple seals so that the outer shell 50 and the inside of the single crystal furnace are in a sealed environment, thereby meeting the use requirements of the single crystal furnace.

[0069] like Figure 4 As shown, optionally, a support 61 is installed on the outer tube wall of the sealing tube 60, the driving member 421 includes a cylinder or an oil cylinder, the cylinder body of the cylinder or the oil cylinder is fixed on the support 61, the driving member 421 also includes a connecting seat 423 and a rod 424, the connecting seat 423 is installed at the end of the telescopic rod of the cylinder or the oil cylinder, the first end of the rod 424 is fixedly connected to the connecting seat 423, the rod body of the rod 424 passes through the second avoidance opening 62, the second end of the rod 424 is hinged to the rod body of the first connecting rod 431, the outside of the rod 424 is sleeved with a bellows 425, and the first end of the bellows 425 is sealed and installed on the connecting seat 423, and the second end of the bellows 425 is sealed and installed on the second avoidance opening 62.

[0070] The driving member 421 is connected to the connecting rod assembly 422 through the connecting seat 423 and the rod member 424, which is convenient for assembly and disassembly; a bellows 425 is sleeved around the rod member 424 to play a sealing role.

[0071] like Figure 2 As shown, optionally, the feeder 1 further includes a weighing sensor 70 , which is located in the housing 50 , with the upper end of the weighing sensor 70 fixed to the housing 50 , and the lower end of the weighing sensor 70 connected to the main silo 10 .

[0072] By disposing the weighing sensor 70 between the housing 50 and the main material bin 10 , the material in the main material bin 10 can be weighed accurately, thereby controlling the amount of material put in.

[0073] like Figure 1 , Figure 2 As shown, optionally, the feeder 1 also includes an auxiliary material bin 80 and a feeding branch pipe 31, the auxiliary material bin 80 is installed on the outside of the outer shell 50, the tube body of the feeding branch pipe 31 passes through the side wall of the outer shell 50, the first end of the feeding branch pipe 31 is connected to the discharge port of the auxiliary material bin 80, and the second end of the feeding branch pipe 31 is installed on the side pipe wall of the feeding pipe 30 and the two are connected.

[0074] By configuring the auxiliary material bin 80, additional additives can be stored, and the additives can be added to the feeding pipe 30 through the feeding branch pipe 31, which is convenient for adding the additives.

[0075] Optionally, a vent hole 32 is opened on the feeding pipe 30, and the vent hole 32 is located on the opposite side of the connection between the feeding pipe 30 and the feeding branch pipe 31; the vent hole 32 is configured to be connected to the air source to clean the accumulated material in the feeding pipe 30 and the feeding branch pipe 31.

[0076] By blowing gas into the feeding pipe 30 and the feeding branch pipe 31 simultaneously through the vent hole 32 , accumulated materials in the feeding pipe 30 and the feeding branch pipe 31 can be cleared to prevent the feeding pipe 30 and the feeding branch pipe 31 from being blocked.

[0077] Optionally, the feeder 1 also includes a tee pipe 81, the feeding branch pipe 31 is connected to the auxiliary material bin 80 through the tee pipe 81, the branch pipe of the tee pipe 81 is connected to the discharge port of the auxiliary material bin 80, the main pipe of the tee pipe 81 is coaxially connected to the feeding branch pipe 31, and the free end of the main pipe of the tee pipe 81 is installed with a perspective window 82.

[0078] By configuring the three-way pipe 81 and installing a perspective window 82 at the free end of the three-way pipe 81, it is possible to observe through the perspective window 82 whether there is material accumulation in the feeding pipe 30 and the feeding branch pipe 31, so as to prepare for subsequent processing.

[0079] like Figure 2 As shown, optionally, the material driver 21 adopts a vibrator, and the vibrator is used to vibrate the material conveying pipe 22.

[0080] The material conveying pipe 22 is vibrated by a vibrator to convey the material, which has a simple structure and low cost.

[0081] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A charging machine, characterized in that: The feeder includes a main material bin, a material conveying mechanism, a feed pipe and a material cutting mechanism; wherein: The material conveying mechanism includes a material driver and a material conveying pipe, the upper side wall of the material conveying pipe is provided with a feed port, the lower side wall of the material conveying pipe is provided with a discharge port, the feed port on the material conveying pipe is connected with the material outlet of the main silo, the discharge port on the material conveying pipe is connected with the inlet of the feeding pipe, the material in the main silo enters the material conveying pipe due to its own weight, the material driver is configured to convey the material in the material conveying pipe to the feeding pipe, and the material conveying pipe is arranged horizontally or tilted downward; The material cutting mechanism includes a blocking member and a moving mechanism for driving the blocking member to move. A first avoidance opening is provided on the material conveying pipe near the discharge port. The moving mechanism drives the blocking member to block or release the discharge port of the material conveying pipe through the first avoidance opening.

2. The charging machine according to claim 1, characterized in that The plugging member includes a guide section and a plugging head; The first end of the guide section is connected to the output end of the moving mechanism, the second end of the guide section is connected to the plugging head, the guide section is built into the first avoidance opening, the outer peripheral wall of the guide section is in contact with the inner wall of the first avoidance opening, and the plugging head is used to block or release the discharge port of the material conveying pipe.

3. The charging machine according to claim 2, characterized in that: The feeding end of the feeding pipe is a bell-shaped mouth that is wide at the top and narrow at the bottom. The plugging head is a frustum of which the diameter gradually increases from top to bottom. The diameter of the lower end face of the frustum is smaller than the diameter of the upper port of the bell-shaped mouth and larger than the diameter of the lower port of the bell-shaped mouth. After the plugging head moves downward, the lower end of the plugging head enters and blocks the bell-shaped mouth of the feeding pipe; after the plugging head moves upward, the lower end of the plugging head moves out of the bell-shaped mouth of the feeding pipe.

4. The charging machine according to claim 2, characterized in that: A material guide pipe is installed on the material outlet of the material conveying pipe. The material guide pipe is configured to be inserted into the feeding pipe from the inlet of the feeding pipe, and there is a gap between the material guide pipe and the feeding pipe.

5. The charging machine according to claim 4, characterized in that: The feed end of the material guide pipe is a bell-shaped mouth that is wide at the top and narrow at the bottom. The plugging head is a frustum of which the diameter gradually increases from top to bottom. The diameter of the lower end face of the frustum is smaller than the diameter of the upper port of the bell-shaped mouth and larger than the diameter of the lower port of the bell-shaped mouth. After the plugging head moves downward, the lower end of the plugging head enters and blocks the bell-shaped mouth of the material guide pipe; after the plugging head moves upward, the lower end of the plugging head moves out of the bell-shaped mouth of the material guide pipe.

6. The charging machine according to claim 1, characterized in that: The moving mechanism comprises a driving member and a connecting rod assembly; the connecting rod assembly comprises a connecting rod seat, a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged on the connecting rod seat, the second end of the first connecting rod is hinged on the first end of the second connecting rod, the second end of the second connecting rod is hinged on the blocking member, and the rod body of the first connecting rod is hinged to the driving end of the driving member; The driving member is configured to drive the connecting rod assembly to move, and further drive the blocking member to move.

7. The charging machine according to claim 6, characterized in that The feeder also includes a shell and a sealing tube, the first end of the sealing tube is sealingly mounted on the shell, and the sealing tube is connected to the interior of the shell, and the second end of the sealing tube is sealed by a flange; the driving member of the moving mechanism is mounted on the outside of the sealing tube, and a second avoidance opening is opened on the tube wall of the sealing tube, the driving end of the driving member passes through the second avoidance opening and is hinged to the rod body of the first connecting rod, the second avoidance opening is sealed, the connecting rod seat is mounted on the inner wall of the sealing tube, the connecting rod assembly is located in the sealing tube and the shell, the blocking member extends into the material conveying pipe and is located above the discharge port of the material conveying pipe, the top of the shell is open, and the open port is sealed by a sealing cover that can be opened and closed, and the sealing cover is also configured to cover the feed port of the main silo, and the feeding pipe extends downward to the outside of the shell.

8. The charging machine according to claim 7, characterized in that A support is installed on the outer tube wall of the sealing tube, the driving member includes an air cylinder or an oil cylinder, the cylinder body of the cylinder or the oil cylinder is fixed on the support, the driving member also includes a connecting seat and a rod member, the connecting seat is installed at the end of the telescopic rod of the air cylinder or the oil cylinder, the first end of the rod member is fixedly connected to the connecting seat, the rod body of the rod member passes through the second avoidance opening, the second end of the rod member is hinged to the rod body of the first connecting rod, a bellows is sleeved on the outside of the rod member, and the first end of the bellows is sealed and installed on the connecting seat, and the second end of the bellows is sealed and installed in the second avoidance opening.

9. The charging machine according to claim 7, characterized in that: The feeder further comprises a weighing sensor, which is located in the shell, the upper end of the weighing sensor is fixed on the shell, and the lower end of the weighing sensor is connected to the main material bin.

10. The charging machine according to claim 7, characterized in that: The feeder also includes an auxiliary material bin and a feeding branch pipe, wherein the auxiliary material bin is installed outside the outer shell, the body of the feeding branch pipe passes through the side wall of the outer shell, the first end of the feeding branch pipe is connected to the discharge port of the auxiliary material bin, and the second end of the feeding branch pipe is installed on the side wall of the feeding pipe and the two are connected.

11. The charging machine according to claim 10, characterized in that The feeding pipe is provided with a vent hole, which is located on the opposite side of the connection between the feeding pipe and the feeding branch pipe; the vent hole is configured to be connected to an air source to clean the accumulated material in the feeding pipe and the feeding branch pipe.

12. The charging machine according to claim 10, characterized in that The feeder also includes a three-way pipe, the feed branch pipe is connected to the auxiliary material bin through the three-way pipe, the branch pipe of the three-way pipe is connected to the discharge port of the auxiliary material bin, the main pipe of the three-way pipe is coaxially connected to the feed branch pipe, and the free end of the main pipe of the three-way pipe is installed with a perspective window.

13. The charging machine according to claim 1, characterized in that The material driver adopts a vibrator, and the vibrator is used to vibrate the material conveying pipe.

Images