Full-automatic silicon material packaging machine, silicon material packaging method and silicon material weighing method

Abstract

The invention relates to the technical field of silicon material packaging equipment, in particular to a full-automatic silicon material packaging machine, a silicon material packaging method and a silicon material weighing method. The full-automatic silicon material packaging machine comprises a weighing and charging device, a sealing device and a controller. The weighing and charging device comprises a feeding assembly, a counterweight assembly and a charging assembly. The feeding assembly is used for putting the large-particle-size silicon material into the packaging bag, so that the weight of the silicon material entering the packaging bag is within the set weight range interval, the set weight range interval can better meet the actual putting requirement of the large-particle-size silicon material, and the putting difficulty of the large-particle-size silicon material is reduced. The silicon material actually needed to be put into the counterweight assembly is determined by obtaining the weight value of the weighing bin I and the preset weight of the silicon material actually needed to be put into the packaging bag, and therefore the purpose of accurate weighing is achieved. According to the scheme, through cooperation of the feeding assembly, the counterweight assembly and the controller, accurate feeding operation can be conducted in the packaging bag, and the purpose of conducting uniform weight and accurate packaging on the silicon materials is achieved.

Description

Technical Field

[0001] This invention relates to the field of silicon material packaging equipment technology, specifically to a fully automatic silicon material packaging machine, a silicon material packaging method, and a weighing method. Background Technology

[0002] Due to the requirements of silicon preparation processes and industrial applications, silicon materials produced through mainstream silicon preparation routes are generally silicon rods several hundred millimeters in size. The deposited silicon rods are large and hard, requiring crushing before being used in downstream production (such as pulling monocrystalline silicon rods and casting polycrystalline silicon ingots). During the crushing process, silicon powder is easily generated as dust, and the larger the specific surface area of ​​silicon, the easier it is to contact with air and moisture, leading to oxidation and contamination. Therefore, in actual crushing processes, to avoid these issues, the silicon material is generally crushed into blocks ranging from a few millimeters to tens of millimeters in size.

[0003] In the downstream production process of polysilicon, the weight of each batch of polysilicon needs to be controlled and standardized, and then packaged. The existing polysilicon packaging process is as follows: an empty container is first conveyed in and weighed to determine its weight. Then, the polysilicon is filled into a polysilicon packaging bag, and the bag containing the polysilicon is placed inside the empty container. Both are then transferred to the next process for weighing. The weight of the empty container is then subtracted from the weighed quantity to obtain the weight of the polysilicon. While this process does yield the weight of the polysilicon, it is cumbersome. Furthermore, because polysilicon is in block form, it is difficult to maintain a consistent weight within each package after this process. In addition, existing polysilicon packaging machines also suffer from a large footprint due to their complex structure. Summary of the Invention

[0004] To address the technical problem that existing polysilicon packaging machines cannot accurately and uniformly measure the weight of each bag of polysilicon, this invention provides a fully automatic polysilicon packaging machine, a polysilicon packaging method, and a weighing method.

[0005] This invention is achieved using the following technical solution: A fully automatic silicon material packaging machine includes a weighing and loading device, a sealing device, and a controller. The weighing and loading device includes a feeding assembly, a counterweight assembly, and a loading assembly. The feeding assembly includes a first feeding bin and a first weighing bin. The first feeding bin is used to hold large-diameter silicon material and transport it to the first weighing bin for weighing. The counterweight assembly includes a second feeding bin and a second weighing bin. The second feeding bin is used to hold small-diameter silicon material and transport it to the second weighing bin for weighing. The loading assembly includes a support plate and a loading bin located below the support plate. The first and second weighing bins are aligned with the upper ends of the loading bins. A packaging bag is fitted over the lower end of the loading bin, with its bottom resting on the support plate. The controller is used to acquire the weight values ​​of the first and second weighing bins, respectively. Loading Stage: The controller opens the loading hopper and feeding hopper one; when the weight value of weighing hopper one is within the set range, feeding hopper one closes and feeding hopper two and weighing hopper one open; when the weight in weighing hopper two reaches weight threshold two, feeding hopper two closes and weighing hopper two open. Loading Completion: The controller closes weighing hopper one, weighing hopper two, and the loading hopper respectively and starts the sealing device; the sealing device removes the packaging bag from the support plate and seals it.

[0006] As a further improvement of the present invention, the second weight threshold is a floating value, the second weight threshold is the difference between the third weight threshold and the weight value of the second weighing chamber, and the third weight threshold is the preset weight of silicon material to be packed in the packaging bag.

[0007] As a further improvement of the present invention, the loading bin also includes a pair of bin door opening and closing assemblies, which are symmetrically arranged at the lower end of the loading bin. Each bin door opening and closing assembly includes a drive component and a plate. The plate includes a rotating section, a connecting section, and a closing section. One end of the rotating section is rotatably mounted on the outer wall of the loading bin. One end of the connecting section is connected to the other end of the rotating section, and the other end of the connecting section is inclined towards the loading bin. One end of the closing section is fixedly connected to the other end of the connecting section, and the other end of the closing section is vertically downward. The two plates are used to form a Y-shaped structure in cross-section, and the two closing sections at the bottom can contact or separate. The drive component is connected to the plate, and the two closing sections are contacted or separated by the drive component driving the plate to rotate.

[0008] As a further improvement of the present invention, a bag opening clamping assembly is also installed on the outer side wall of the plate body one. The bag opening clamping assembly includes a driving member two and a clamping block. One end of the clamping block is rotatably installed on the outer wall of the plate body one. The driving member two is installed on the plate body one and connected to the clamping block. The clamping block is made to abut against or move away from the plate body one by driving the clamping block to rotate through the driving member two.

[0009] As a further improvement of the present invention, the filling bin also includes a pair of bag mouth support assemblies symmetrically installed at the lower end of the filling bin. The pair of bag mouth support assemblies and the pair of bin door opening and closing assemblies are arranged vertically in the horizontal direction of the filling bin. The bag mouth support assembly includes a driving component three and a support rod. One end of the support rod is connected to the driving component three, and the other end of the support rod is set vertically downward. The driving component three is used to drive the support rod to move back and forth in the horizontal direction, thereby adjusting the distance between the two support rods.

[0010] As a further improvement of the present invention, the sealing device includes a conveyor belt, a sealing machine, and a pair of clamping members. The conveyor belt is aligned with and flush with the support plate. The pair of clamping members are respectively disposed on both sides of the conveyor belt, and the clamping members can move back and forth between the support plate and the conveyor belt along the conveying direction of the conveyor belt, thereby clamping the packaging bag on the support plate onto the conveyor belt. The sealing machine is installed above the conveyor belt and is used to seal the packaging bag entering the conveyor belt.

[0011] As a further improvement of the present invention, the feeding assembly is also provided with a vibrating conveying channel 1, one end of which is connected to the outlet of the feeding bin 1 and the other end is connected to the inlet of the weighing bin 1; the vibrating conveying channel 1 is used to vibrate the silicon material in the feeding bin 1 and convey it into the weighing bin 1. As a further improvement of the present invention, the counterweight assembly is also provided with a second vibration conveying channel. One end of the second vibration conveying channel is connected to the outlet of the second feeding bin, and the other end is connected to the inlet of the second weighing bin. The second vibration conveying channel is used to vibrate the silicon material in the second feeding bin and convey it into the second weighing bin.

[0012] As a further improvement of the present invention, the fully automatic silicon material packaging machine also includes a bag loading device arranged on one side of the sealing device and parallel to the sealing device. The bag loading device includes a bag storage, a bag feeding mechanism and a bag loading robot. The bag feeding mechanism is used to take out empty packaging bags from the bag storage and open the bag opening. The bag loading robot is used to place the opened packaging bag onto the lower end of the filling bin.

[0013] This invention also includes a method for accurately weighing a preset weight of silicon material, comprising a weighing and feeding device and a controller as described above in a fully automatic silicon material packaging machine. The weighing method includes: opening feeding hopper one via the controller and acquiring the weight of weighing hopper one; closing feeding hopper one and opening feeding hopper two when the weight value of weighing hopper one is within a set range; acquiring a weight threshold two for weighing hopper two based on the weight value of weighing hopper one and the preset weight of silicon material to be packed in the packaging bag; acquiring the weight of weighing hopper two and closing feeding hopper two when the weight of weighing hopper two reaches the weight threshold two; and opening both weighing hopper one and weighing hopper two respectively, so that the silicon material in both weighing hoppers enters the packaging bag, thus obtaining an accurately weighed preset weight of silicon material.

[0014] This invention also includes a method for packaging silicon material, which employs the fully automatic silicon material packaging machine described above. The packaging method includes: opening the loading hopper and feeding hopper one respectively and obtaining the weight of weighing hopper one; when the weight value of weighing hopper one is within a set range, closing feeding hopper one and opening feeding hopper two and weighing hopper one. Based on the weight value of weighing hopper one and the preset weight of silicon material required to fill the packaging bag, obtaining a preset weight threshold two for weighing hopper two. Obtaining the weight of weighing hopper two, and when the weight of weighing hopper two reaches weight threshold two, closing feeding hopper two and opening weighing hopper two; and after all the silicon material in weighing hopper two has entered the packaging bag, closing the loading hopper and starting the sealing device.

[0015] The technical solution provided by this invention has the following beneficial effects: (1) The fully automatic silicon material packaging machine provided by the present invention is equipped with a feeding component, a counterweight component, and a controller. The feeding component is used to feed large-diameter silicon material into the packaging bag, so that the weight of the silicon material entering the packaging bag is within a set weight range. The set weight range can better meet the actual feeding requirements of large-diameter silicon material, reduce the difficulty of feeding large-diameter silicon material, and make the silicon material packaging process more practical. Moreover, this setting can solve the defect that it is difficult to maintain the same fixed weight value of large-diameter silicon material every time it is fed. In addition, this solution is equipped with a counterweight component. The silicon material fed into the counterweight component is small-diameter, and its input weight is easy to control. By obtaining the weight value of the weighing bin and the preset weight of silicon material that the packaging bag actually needs to hold, the actual amount of silicon material that the counterweight component needs to feed is determined. Through the counterweight component, the weight of silicon material fed into the counterweight component can be adjusted according to the packaging weight set by the packaging bag, thereby achieving the purpose of counterweight. Therefore, this solution, through the cooperation of the feeding component, the counterweight component, and the controller, can achieve precise feeding into the packaging bag, thereby ensuring that the actual weight of silicon material in each packaging bag is a fixed value, achieving the goal of uniform and precise packaging of silicon material weight.

[0016] (2) The fully automatic silicon material packaging machine provided by the present invention does not require the packaging bag to be moved when it accurately feeds the packaging bag. It only needs to flexibly adjust the feeding component and the counterweight component through the controller to achieve accurate feeding of the one-time ratio, thereby simplifying the entire silicon material packaging process.

[0017] (3) The weighing method for accurately weighing a preset weight of silicon material provided by the present invention involves setting up a feeding bin one and a feeding bin two. Feeding bin one is used to hold large-diameter silicon material, which is weighed to a set weight range through weighing bin one. Then, small-diameter silicon material in feeding bin two is used for counterweighting, so that the silicon material can be accurately controlled to the same weight value each time, thus achieving the purpose of accurate weighing of silicon material. This effectively solves the problem in the prior art that it is difficult to accurately weigh to the same weight each time due to the large particle size of silicon material. Moreover, this method can achieve accurate weighing in a single weighing without moving the packaging bag, simplifying the entire weighing process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the fully automatic silicon material packaging machine provided in Embodiment 1 of the present invention.

[0019] Figure 2 This is a structural schematic diagram of the fully automatic silicon material packaging machine provided in Embodiment 1 of the present invention without a frame.

[0020] Figure 3 This is a schematic diagram of the fully automatic silicon material packaging machine provided in Embodiment 1 of the present invention from another perspective (the frame is not shown).

[0021] Figure 4 This is a partial structural schematic diagram of the weighing and loading device provided in Embodiment 1 of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the loading bin provided in Embodiment 1 of the present invention.

[0023] Figure 6 This is a schematic diagram of the internal structure of the loading bin provided in Embodiment 1 of the present invention.

[0024] Figure 7 This is a partial structural diagram of the loading bin and sealing device provided in Embodiment 1 of the present invention.

[0025] Figure 8 This is a schematic diagram of the sealing device provided in Embodiment 1 of the present invention.

[0026] The diagram is labeled as follows: 1. Weighing and loading device; 11. Feeding assembly; 111. Feeding bin one; 112. Weighing bin one; 113. Vibrating conveyor channel one; 12. Counterweight assembly; 121. Feeding bin two; 122. Weighing bin two; 123. Vibrating conveyor channel two; 13. Loading assembly; 131. Loading bin; 132. Support plate; 133. Drive component one; 134. Plate body one; 135. Rotating section; 136. Connecting section; 137. Closing section; 14. Bag mouth clamping assembly; 141. Drive component two; 142. Clamping block; 15. Bag mouth support assembly; 151. Drive component three; 152. Support rod; 2. Sealing device; 21. Conveyor belt; 22. Sealing machine; 23. Clamping component; 3. Bag loading device; 31. Bag storage; 32. Bag feeding mechanism; 33. Bag loading robot. Detailed Implementation

[0027] The present invention will now be further described in conjunction with 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.

[0028] In the description of this invention, it should be noted that 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," etc., indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are used only for the convenience of describing the invention 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 scope of protection of this invention. The terms "first," "second," etc., in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "comprising" and "having," and any variations thereof, in the specification and claims of this invention, 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 explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0029] Example 1 This embodiment provides a fully automatic silicon material packaging machine. Please refer to [link / reference]. Figures 1 to 4The system includes a frame, a weighing and loading device 1, a sealing device 2, and a controller. Both the weighing and loading device 1 and the sealing device 2 are mounted on the frame. The weighing and loading device 1 may include a feeding assembly 11, a counterweight assembly 12, and a loading assembly 13. The loading assembly 13 includes a loading bin 131 and a support plate 132. The loading bin 131 may have an open upper end and a closable lower end. The support plate 132 is located directly below the loading bin 131, and an empty packaging bag is used to fit over the lower end of the loading bin 131, with its bottom contacting the support plate 132. When silicon material enters the packaging bag through the loading bin 131, the support plate 132 can be used to support the packaging bag. Both the feeding assembly 11 and the counterweight assembly 12 can be located above the loading assembly 13. The feeding assembly 11 includes a feeding bin 111 and a weighing bin 112. The outlet of the feeding bin 111 is connected to the inlet of the weighing bin 112. The feeding bin 111 is used to hold large-diameter silicon material (such as 8mm~60mm) and convey it to the weighing bin 112. The weighing bin 112 is equipped with a weight sensor. The weighing bin 112 weighs the large-diameter silicon material entering the weighing bin 112 through the weight sensor and transmits the weighed weight data to the controller. The counterweight assembly 12 includes a second feeding bin 121 and a second weighing bin 122. The outlet of the second feeding bin 121 is connected to the inlet of the second weighing bin 122. The second feeding bin 121 is used to hold small-diameter silicon material (such as 3mm~8mm, excluding 8mm) and transport the silicon material into the second weighing bin 122. The second weighing bin 122 is equipped with a second weight sensor, which is used to weigh the silicon material in the second weighing bin 122 and transmit the weight data to the controller. The outlets of the first weighing bin 112 and the second weighing bin 122 are respectively aligned with the open end of the loading bin 131, so that the silicon material in both the first weighing bin 112 and the second weighing bin 122 can enter the loading bin 131 and then enter the packaging bag through the loading bin 131, thus completing the loading process.

[0030] The controller is used to acquire the weight values ​​of weighing bin 112 and weighing bin 222 respectively. The controller is also used to independently control the opening and closing of the lower opening of the loading bin 131, the discharge port of the feeding bin 111, the discharge port of the weighing bin 112, the discharge port of the feeding bin 2121, and the discharge port of the weighing bin 222. During the loading stage: after the packaging bag is placed over the lower opening of the loading bin 131, the controller opens the lower opening of the loading bin 131 and the discharge port of the feeding bin 111, allowing the silicon material in the feeding bin 111 to enter the weighing bin 112. The controller also closes the discharge port of the feeding bin 111 and opens the discharge ports of the feeding bin 2121 and the weighing bin 112 when the weight value of the weighing bin 112 is within a set range. At this time, the large-diameter silicon material in weighing bin 112 can enter the packaging bag fitted at the lower end of the loading bin 131 through the loading bin 131. The controller is also used to obtain the weight value in weighing bin 222, and close the discharge port of the feeding bin 221 and open the discharge port of weighing bin 222 when the weight value in weighing bin 222 reaches the weight threshold two. At this time, the small-diameter silicon material in weighing bin 222 can enter the packaging bag through the loading bin 131, thereby completing the loading operation. Among them, the weight threshold two is a floating value, and its specific value can be obtained as follows: the weight threshold two can be obtained by subtracting the weight value of weighing bin 112 from the weight threshold three. The weight threshold three is a preset weight of silicon material that needs to be loaded into the packaging bag. This solution incorporates a feeding component 11, a counterweight component 12, and a controller. The feeding component 11 dispenses large-diameter silicon material into the packaging bag, ensuring that the weight of the silicon material entering the bag remains within a predetermined range. This range better matches the actual dispensing requirements of large-diameter silicon material, reducing the difficulty of dispensing and making the packaging process more practical. This design also addresses the challenge of consistently maintaining the same weight for large-diameter silicon material during dispensing. Furthermore, the counterweight component 12 dispenses small-diameter silicon material, making its weight easily controllable. By obtaining the weight value from the weighing chamber 112 and the preset weight of silicon material required for the packaging bag, the actual amount of silicon material dispensed by the counterweight component 12 is determined. This allows the counterweight component 12 to adjust its dispensing weight according to the set packaging weight, thus achieving the desired counterweighting effect. Therefore, this solution, through the cooperation of the feeding component 11, the counterweight component 12, and the controller, enables precise feeding into the packaging bags, ensuring that the actual weight of silicon material in each bag is a fixed value, thus achieving the goal of uniform and precise packaging of silicon material. Furthermore, during precise feeding, the packaging bags do not need to be moved; the controller flexibly adjusts the feeding component 11 and the counterweight component 12 to achieve precise feeding in a single batch, simplifying the entire silicon material packaging process.After the material is loaded, the controller is also used to close the loading hopper 131 and start the sealing device 2, which is used to remove the packaging bag filled with silicon material from the support plate 132 and seal it.

[0031] In actual setup, the weight range of weighing bin 112 can be set to 80%-95% of the total amount of silicon material to be packaged in the packaging bag. The specific value can be set according to actual needs and the average weight of large-diameter silicon material in feeding bin 111.

[0032] Please refer to Figure 5 The upper end of the filling bin 131 can be a funnel-shaped structure with an upward opening, and the lower end of the filling bin 131 can be a hollow rectangular structure. This structural design facilitates the rapid passage of silicon material from weighing bins 112 and 122 through the filling bin 131 into the packaging bag. The filling bin 131 may also include a pair of door opening and closing assemblies, which can be symmetrically arranged at the lower end of the filling bin 131. The door opening and closing assemblies can be symmetrically arranged along the left-right direction of the filling bin 131. Please refer to... Figure 4 and Figure 5 The silo door opening and closing assembly may include a drive component 133 and a plate 134. The plate 134 includes a rotating section 135, a connecting section 136, and a closing section 137. One end of the rotating section 135 is rotatably mounted on the outer wall of the loading silo 131. The upper end of the connecting section 136 is fixedly connected to the other end of the rotating section 135, and the lower end of the connecting section 136 is inclined towards the loading silo 131. The upper end of the closing section 137 is fixedly connected to the lower end of the connecting section 136, and the closing section 137 is vertically downward. The two plates 134 form a Y-shaped cross-section. The drive component 133 connects to the plate 134, and the drive component drives the plate 134 to rotate, thus enabling the two closing sections 137 to contact or separate. The plate also has two side plates, which are symmetrically arranged along the width direction of the plate 134. The side plates are used to improve the sealing of the two plates 134 when closed, preventing silicon material leakage. Two side plates are used to form a sealing groove in the entire plate 134 when the closed section 137 of the two plates 134 contacts, thereby blocking the bottom of the loading bin 131. The bin door opening and closing assembly can be regarded as a duckbill-shaped structure. It can provide good sealing performance when the bin door is closed, ensuring that the silicon material is sealed and does not leak, and can also work with the loading bin 131 as a discharge hopper to accelerate the loading speed. The bin door opening and closing assembly can also act as a transition assembly when open, used to guide the silicon material in the loading bin 131.

[0033] A bag-mouth clamping assembly 14 may also be installed on the outer wall of each plate 134. Please refer to... Figures 4 to 6The bag opening clamping assembly 14 may include a second driving member 141 and a clamping block 142. The second driving member 141 can be installed on the outer wall of the first plate 134. The upper end of the clamping block 142 is rotatably installed on the first plate 134. The second driving member 141 drives the clamping block 142 to rotate, and the lower end of the clamping block 142 abuts against the first plate 134. In actual bagging, the second driving member 141 can first drive the clamping block 142 away from the first plate 134, and the bag opening of the packaging bag can be placed on the outside of the first plate 134. Then, the second driving member 141 drives the clamping block 142 to abut against the first plate 134. Under the action of the clamping block 142, the bag opening of the packaging bag can be fixed between the clamping block 142 and the first plate 134, thereby achieving the purpose of fixing the bag opening. This solution ensures that all the silicon material in the filling bin 131 can enter the packaging bag by placing the bag opening over the outside of the plate 134. Furthermore, the bag opening clamping assembly 14, installed on the plate 134, ensures that the bag opening is firmly fixed by the clamping assembly 14 when the two plates 134 are opened or closed, thus improving the stability of the bag opening.

[0034] The filling hopper 131 may also be equipped with a pair of pocket support assemblies, which may be symmetrically arranged at the lower end of the filling hopper 131. The pair of bag opening support assemblies 15 and the pair of hopper door opening and closing assemblies may be arranged perpendicularly to each other in the horizontal direction of the filling hopper 131. This design aims to allow the hopper door opening and closing assembly and the bag opening clamping assembly 14 to support and clamp the bag opening in the left-right direction, while the pocket support assemblies support the bag opening from the front-back direction. This ensures that the bag opening remains open after being fitted, facilitating the complete entry of the silicon material inside the filling hopper 131 into the packaging bag. Please refer to... Figure 4 and Figure 5 The bag opening support assembly 15 may include a drive component 151 and a support rod 152. One end of the support rod 152 is connected to the drive component 151, and the other end of the support rod 152 is vertically downward. The drive component 151 can drive the support rod 152 to move back and forth in the horizontal direction (i.e., the front-to-back direction relative to the filling bin 131), thereby adjusting the distance between the two support rods 152. Before the packaging bag is fitted, the drive component 151 can drive the support rod 152 to move closer to the filling bin 131 until it abuts against the plate. This operation is to facilitate the quick fitting of the packaging bag. After the packaging bag is fitted, the drive component 151 can drive the support rod 152 to move away from the filling bin 131 so that the two support rods 152 support the packaging bag along the front-to-back direction of the filling bin 131. In addition, after the filling is completed, the bin door opening and closing assembly will also close accordingly. At this time, the support rod 152 can be moved away from the loading bin 131 by the drive component 3 151. The two support rods 152 can flatten the bag opening and restore it to a flat state.

[0035] The feeding assembly 11 may also include a vibrating conveying channel 113. One end of the vibrating conveying channel 113 is connected to the outlet of the feeding bin 111, and the other end is connected to the inlet of the weighing bin 112. The vibrating conveying channel 113 can vibrate the silicon material discharged from the feeding bin 111 and convey it into the weighing bin 112. By setting the vibrating conveying channel 113, the silicon material in the feeding bin 111 can be effectively conveyed into the weighing bin 112. The counterweight assembly 12 may also be provided with a vibrating conveying channel 123. One end of the vibrating conveying channel 123 can be connected to the outlet of the feeding bin 121, and the other end can be connected to the inlet of the weighing bin 122. The vibrating conveying channel 123 can vibrate the silicon material coming out of the feeding bin 121 and convey it into the weighing bin 122. By setting up a second vibration conveying channel 123, the silicon material in the second feeding bin 121 can be effectively conveyed to the second weighing bin 122. Both the first vibration conveying channel 113 and the second vibration conveying channel 123 adopt independent support structures, so that their various vibrations will not be transmitted to each other, thereby improving the feeding accuracy of the feeding assembly 11 and the counterweight assembly 12.

[0036] Please refer to Figure 7 and Figure 8The sealing device 2 may include a conveyor belt 21, a sealing machine 22, and a pair of clamping members 23. The conveyor belt 21 is disposed on one side of the support plate 132 and is flush with the support plate 132. The conveying direction of the conveyor belt 21 can be arranged along the front-to-back direction of the filling bin 131. In actual installation, the distance between the conveyor belt 21 and the support plate 132 can be set relatively small, as long as both can work independently and can quickly move the packaging bags on the support plate 132 onto the conveyor belt 21. The pair of clamping members 23 are symmetrically disposed on both sides of the conveyor belt 21. The pair of clamping members 23 can move back and forth between the support plate 132 and the conveyor belt 21 along the conveying direction of the conveyor belt 21 under the drive of a drive cylinder or other common drive components. The packaging bags on the support plate 132 are moved onto the conveyor belt 21 by the back-and-forth movement of the pair of clamping members 23. The sealing machine 22 is mounted on a frame and located above the conveyor belt 21. The sealing machine 22 can be positioned on the conveyor belt 21 near the support plate 132. Together with the clamping member 23, it clamps the packaging bag, allowing the sealing machine 22 to seal the bag once it is positioned on the conveyor belt 21 and at the sealing machine 22. Vertically, the sealing machine 22 is higher than the clamping member 23. This design ensures that the packaging bag remains sealed before and during the sealing process, preventing silicone material from falling out of the bag opening. The specific operation process of the sealing device 2 is as follows: After the silicon material in the weighing chamber 2 122 has completely fallen into the packaging bag, a pair of clamping parts 23 can be driven to move towards the support plate 132 and clamp the opening of the packaging bag. Then, the driving part 2 141 can drive the clamping block 142 away from the plate 1 134, and the driving part 3 151 can also drive the support rod 152 to be pulled out from the packaging bag. At this point, a pair of clamping members 23 can be driven to move towards the conveyor belt 21. Under the clamping action of the clamping members 23, the packaging bag on the support plate 132 can be moved from the support plate 132 to the conveyor belt 21. The clamping members 23 can also move away from the support plate 132 along with the packaging bag to the sealing machine 22. The sealing machine 22 can seal the packaging bag located on the conveyor belt 21. After the sealing machine 22 completes the sealing operation, the clamping members 23 can release their grip on the packaging bag. At this time, the packaging bag can be conveyed to the next process under the action of the conveyor belt 21. Thus, the entire fully automatic silicon material packaging machine completes the loading and packaging of silicon material. The sealing machine 22 can be a flat bag sealing machine 22 commonly used in this field.

[0037] The fully automatic silicon material packaging machine may also include a bag-loading device 3, which can be aligned with the conveying direction of the conveyor belt 21, thereby forming a U-shaped structure with the bag-loading device 3, the support plate 132, and the sealing device 2. Figure 2As shown, the packaging bag can be moved from the bag-loading device 3 to the sealing device 2 via a U-shaped structure to achieve filling and sealing, thereby completing the packaging of silicon material. The bag-loading device 3 may include a bag storage 31, a bag feeding mechanism 32, and a bag-loading robot 33. The bag storage 31 is used to hold empty packaging bags. The bag feeding mechanism 32 may include a conveying part and a bag opening part. The bag feeding mechanism 32 is used to remove the packaging bags from the bag storage 31 and perform operations such as straightening, translating, conveying, and opening the bags. The bag-loading robot 33 is used to send the opened bag to the bottom of the filling bin 131. It is understood that the bag-loading process of the bag-loading device 3 provided in this solution is a common bag-loading operation for those skilled in the art, and its structure has not been significantly improved. Therefore, this solution will not describe the bag-loading device 3 and the bag-loading process in detail.

[0038] Example 2 Based on Example 1, this solution also provides a method for accurately weighing a preset weight of silicon material, which includes a weighing and feeding device and a controller as in the fully automatic silicon material packaging machine of Example 1. The weighing method includes: (1) Open the discharge port of feed bin 111 through the controller and obtain the weight of weighing bin 112. When the weight value of weighing bin 112 is within the set range, close the discharge port of feed bin 111 and open the discharge port of feed bin 2121.

[0039] (2) The controller obtains the weight threshold 2 that needs to be weighed in weighing bin 2 122 by the weight value of weighing bin 2 122 and the preset weight of silicon material to be packed in the packaging tape.

[0040] (3) The controller acquires the weight of weighing bin 2 122 and closes the discharge port of feeding bin 2 121 when the weight of weighing bin 2 122 reaches the weight threshold 2.

[0041] (4) The controller opens the discharge port of weighing bin 112 and the discharge port of weighing bin 222 respectively, so that the silicon material in weighing bin 112 and weighing bin 222 enters the packaging bag, thus obtaining the silicon material with the preset weight accurately weighed.

[0042] This solution uses two feeding bins: Feeding Bin 111 and Feeding Bin 2 121. Feeding Bin 111 holds large-diameter silicon material, which is then weighed to a predetermined weight range by Weighing Bin 112. Small-diameter silicon material in Feeding Bin 2 121 then acts as a counterweight, ensuring that each weighing of the silicon material is precisely controlled to the same weight. This effectively solves the problem in existing technologies where the large particle size of the silicon material makes it difficult to achieve precise weighing to the same weight each time.

[0043] Example 3 This embodiment, based on the fully automatic silicon material packaging machine provided in Embodiment 1, provides a method for packaging silicon material, which uses the fully automatic silicon material packaging machine as described in Embodiment 1 to package the silicon material. The packaging method includes: S1: The packaging bag with its opening opened is placed under the material loading bin 131 by the bag-loading device 3. After the packaging bag is placed, the bin door opening and closing assembly and the discharge port of the first feeding bin 111 are opened respectively. The weight of the first weighing bin 112 is then obtained. When the weight value of the first weighing bin 112 is within the set range, the discharge port of the first feeding bin 111 is closed and the discharge ports of the second feeding bin 121 and the first weighing bin 112 are opened. The silicon material weighed in the first weighing bin 112 can enter the packaging bag through the material loading bin 131, while the small-diameter silicon material in the second feeding bin 121 can enter the second weighing bin 122.

[0044] S2: Obtain the preset weight threshold 2 for weighing bin 122 based on the weight value of weighing bin 112 and the preset weight of silicon material to be packed in the packaging bag.

[0045] S3: Obtain the weight of weighing bin 2 122, and when the weight of weighing bin 2 122 reaches the weight threshold 2, close the discharge port of feeding bin 2 121 and open the discharge port of weighing bin 2 122. The silicon material in weighing bin 2 122 can enter the packaging bag through its discharge port and the loading bin 131, thereby completing the accurate weighing and loading of the packaging bag.

[0046] S4: After all the silicon material in the weighing bin 122 has entered the packaging bag, close the filling bin 131 and start the sealing device 2. The sealing device 2 can achieve the purpose of moving the packaging bag to the conveyor belt 21 and sealing it through the specific operation described in Example 1.

[0047] S5: Repeat steps S1 to S4 to achieve the same packaging weight for multiple bags.

[0048] This solution sets the weighing range of weighing bin 112 (for large-diameter silicon particles) to a defined interval during silicon material packaging. This allows for better alignment with the actual dispensing requirements of large-diameter silicon particles, reducing the difficulty of dispensing them and making the packaging process more practical. This setting also addresses the challenge of consistently maintaining the same weight for large-diameter silicon particles during each dispensing. Weighing bin 122 then adjusts the weight of the silicon material added to the packaging bag according to the set packaging weight, achieving weight distribution. These two systems work together to achieve uniform and precise silicon material weight packaging.

[0049] The basic principles, main features, and advantages of this invention have been described above. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection claimed by this invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic silicon material packaging machine, characterized in that, It includes a weighing and loading device (1), a sealing device (2), and a controller; The weighing and loading device (1) includes a feeding assembly (11), a counterweight assembly (12), and a loading assembly (13); the feeding assembly (11) includes a first feeding bin (111) and a first weighing bin (112); the first feeding bin (111) is used to hold large-diameter silicon material and transport it to the first weighing bin (112) for weighing; the counterweight assembly (12) includes a second feeding bin (121) and a second weighing bin (122); the second feeding bin... (121) is used to hold small-diameter silicon material and transport it to weighing bin two (122) for weighing; the loading assembly (13) includes a support plate (132) and a loading bin (131) located at the upper end of the support plate (132); weighing bin one (112) and weighing bin two (122) are respectively aligned with the upper end of the loading bin (131); the packaging bag is placed on the lower end of the loading bin (131) and the bottom is located on the support plate (132); The controller is used to acquire the weight values ​​of weighing bin 1 (112) and weighing bin 2 (122) respectively; during the loading stage: the controller is used to open the loading bin (131) and the feeding bin 1 (111); when the weight value of weighing bin 1 (112) is within the set range, the feeding bin 1 (111) is closed and the feeding bin 2 (121) and weighing bin 1 (112) are opened; when the weight of weighing bin 2 (122) reaches the weight threshold 2, the feeding bin 2 (121) is closed and the weighing bin 2 (122) is opened; after loading is completed: the controller is used to close weighing bin 1 (112), weighing bin 2 (122) and loading bin (131) respectively and start the sealing device (2); the sealing device (2) is used to remove the packaging bag from the support plate (132) and seal it.

2. The fully automatic silicon material packaging machine as described in claim 1, characterized in that, The second weight threshold is a floating value, and the second weight threshold is the difference between the third weight threshold and the weight value of the second weighing chamber (122). The third weight threshold is the preset weight of silicon material that the packaging bag needs to hold.

3. The fully automatic silicon material packaging machine as described in claim 1, characterized in that, The loading bin (131) also includes a pair of bin door opening and closing assemblies, which are symmetrically arranged at the lower end of the loading bin (131). Each bin door opening and closing assembly includes a drive component (133) and a plate (134). The plate (134) includes a rotating section (135), a connecting section (136), and a closing section (137). One end of the rotating section (135) is rotatably mounted on the outer wall of the loading bin (131), and one end of the connecting section (136) is connected to the other end of the rotating section (135). The other end is inclined toward the loading bin (131); one end of the closed section (137) is fixedly connected to the other end of the connecting section (136) and the other end of the closed section (137) is vertically downward; the two plates (134) are used to form a Y-shaped structure in cross section and the two closed sections (137) at the bottom can contact or separate; the driving component (133) is connected to the plate (134), and the two closed sections (137) are contacted or separated by driving the plate (134) to rotate through the driving component (133).

4. The fully automatic silicon material packaging machine as described in claim 3, characterized in that, A bag opening clamping assembly (14) is also installed on the outer wall of the first plate (134). The bag opening clamping assembly (14) includes a second driving member (141) and a clamping block (142). One end of the clamping block (142) is rotatably installed on the outer wall of the first plate (134). The second driving member (141) is installed on the first plate (134) and connected to the clamping block (142). The clamping block (142) is moved to abut against or away from the first plate (134) by the second driving member (141) driving the clamping block (142) to rotate.

5. The fully automatic silicon material packaging machine as described in claim 3, characterized in that, The filling bin (131) also includes a pair of bag mouth support assemblies (15) symmetrically installed at the lower end of the filling bin (131). The pair of bag mouth support assemblies (15) and the pair of bin door opening and closing assemblies are arranged vertically in the horizontal direction of the filling bin (131). The bag mouth support assembly (15) includes a driving component three (151) and a support rod (152). One end of the support rod (152) is connected to the driving component three (151), and the other end of the support rod (152) is arranged vertically downward. The driving component three (151) is used to drive the support rod (152) to move back and forth in the horizontal direction, thereby adjusting the distance between the two support rods (152).

6. The fully automatic silicon material packaging machine as described in claim 1, characterized in that, The sealing device (2) includes a conveyor belt (21), a sealing machine (22), and a pair of clamping members (23). The conveyor belt (21) is aligned with and flush with the support plate (132). The pair of clamping members (23) are disposed on both sides of the conveyor belt (21), and the clamping members (23) can move back and forth between the support plate (132) and the conveyor belt (21) along the conveying direction of the conveyor belt (21), thereby clamping the packaging bag on the support plate (132) onto the conveyor belt (21). The sealing machine (22) is installed above the conveyor belt (21) and is used to seal the packaging bag entering the conveyor belt (21).

7. The fully automatic silicon material packaging machine as described in claim 1, characterized in that, The feeding assembly (11) is also provided with a vibrating conveying channel (113), one end of which is connected to the outlet of the feeding bin (111) and the other end is connected to the inlet of the weighing bin (112); the vibrating conveying channel (113) is used to vibrate the silicon material in the feeding bin (111) and convey it into the weighing bin (112); And / or, the counterweight assembly (12) is further provided with a second vibration conveying channel (123), one end of which is connected to the outlet of the second feeding bin (121), and the other end is connected to the inlet of the second weighing bin (122); the second vibration conveying channel (123) is used to vibrate the silicon material in the second feeding bin (121) and convey it into the second weighing bin (122).

8. The fully automatic silicon material packaging machine as described in claim 1, characterized in that, The fully automatic silicon material packaging machine also includes a bag-loading device (3) set on one side of the sealing device (2) and parallel to the sealing device (2). The bag-loading device (3) includes a bag storage (31), a bag feeding mechanism (32), and a bag-loading robot (33). The bag feeding mechanism (32) is used to take out empty packaging bags from the bag storage (31) and open the bag opening. The bag-loading robot (33) is used to put the packaging bag with the open bag opening onto the lower end of the filling bin (131).

9. A method for accurately weighing a preset weight of silicon material, characterized in that, It includes the weighing and feeding device and controller of the fully automatic silicon material packaging machine as described in any one of claims 1-8; the weighing method includes: The controller opens the first feeding bin (111) and obtains the weight of the first weighing bin (112). When the weight value of the first weighing bin (112) is within the set range, the first feeding bin (111) is closed and the second feeding bin (121) is opened. The weight threshold 2 of weighing chamber 2 (122) is obtained based on the weight value of weighing chamber 1 (112) and the preset weight of silicon material to be packed in the packaging bag; Obtain the weight of weighing bin two (122), and close feeding bin two (121) when the weight of weighing bin two (122) reaches the weight threshold two; Open weighing chamber one (112) and weighing chamber two (122) respectively, so that the silicon material in weighing chamber one (112) and weighing chamber two (122) enters the packaging bag, thus obtaining the silicon material with the preset weight accurately weighed.

10. A method for packaging silicon material, characterized in that, It employs a fully automatic silicon material packaging machine as described in any one of claims 1-8; the packaging method includes: Open the loading bin (131) and the feeding bin 1 (111) respectively and obtain the weight of the weighing bin 1 (112). When the weight value of the weighing bin 1 (112) is within the set range, close the feeding bin 1 (111) and open the feeding bin 2 (121) and the weighing bin 1 (112). The preset weight threshold of weighing chamber 2 (122) is obtained based on the weight value of weighing chamber 1 (112) and the preset weight of silicon material to be packed in the packaging bag. Obtain the weight of weighing bin 2 (122), and close feeding bin 2 (121) and open weighing bin 2 (122) when the weight of weighing bin 2 (122) reaches the weight threshold 2; and close loading bin 131 and start sealing device (2) after all the silicon material in weighing bin 2 (122) has entered the packaging bag.

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