A crystal bar edge scrap crushing device

Abstract

The present invention discloses a crystal bar edge scrap crushing device, which relates to the technical field of photovoltaic device production, and aims to solve the problems of relatively high labor intensity and unqualified artificial crushing dimensions in the operation mode of manually crushing edge scraps for edge scrap recycling. The crystal bar edge scrap crushing device includes: a conveying mechanism for conveying edge scraps, and the conveying mechanism is in arc surface contact with the side wall of the edge scrap. At least one clamping mechanism located above the conveying mechanism, the clamping mechanism has a clamping channel extending to the end of the conveying mechanism, and the internal contour shape of the clamping channel matches the contour shape of the edge scrap. And a crushing mechanism located at the end of the conveying mechanism, which is used to cooperate with the conveying mechanism to strike the side wall plane of the edge scrap and crush the edge scrap into silicon materials.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic device production, and in particular to a crystal bar edge scrap crushing device. Background Art

[0002] The shapes of existing photovoltaic cells (silicon wafers) are mostly quasi-square or quasi-polygonal. A cylindrical crystal bar is cut to form a quasi-square or quasi-polygonal crystal bar, and then sliced into finished silicon wafers. During the process of cutting a cylindrical crystal bar into a quasi-square or quasi-polygonal crystal bar, multiple edge scraps with a bow-shaped cross-section are generated. In the existing technology, the edge scraps need to be recycled. During the current edge scrap recycling process, the edge scraps go through processes such as reagent soaking, rinsing, and drying. Then, on-site, manual collection and material turnover are carried out, and then distributed to different crushing stations, where manual workers use hammers to crush them, so that the linear dimensions of the silicon material reach the material feeding furnace size standard, thereby achieving the effect of recycling the edge scraps. Since there are strict requirements for linear dimensions, metal contamination, and other impurities during the recycling of edge scraps, long-term high-frequency manual operations result in a relatively high labor intensity for the operators, and it is easy to cause blocks with unqualified linear dimensions. At the same time, multi-station crushing results in a relatively low cleanliness in the workshop. Summary of the Invention

[0003] The purpose of the present invention is to provide a crystal bar edge scrap crushing device to solve the problems such as relatively high labor intensity and easy unqualified manual crushing dimensions in the operation mode of manually crushing edge scraps for edge scrap recycling.

[0004] The present invention provides a crystal bar edge scrap crushing device, including:

[0005] A conveying mechanism for conveying edge scraps, the conveying mechanism being in arc surface contact with the side wall of the edge scrap. At least one clamping mechanism located above the conveying mechanism, the clamping mechanism having a clamping channel extending to the end of the conveying mechanism, and the internal contour shape of the clamping channel matching the contour shape of the edge scrap. And a crushing mechanism located at the end of the conveying mechanism, for cooperating with the conveying mechanism to strike the side wall plane of the edge scrap and crush the edge scrap into silicon material.

[0006] In the case of adopting the above technical solution, the conveying mechanism conveys the edge leather placed thereon to the crushing mechanism, achieving the effect of automatic feeding. Since the crushing mechanism is located at the end of the conveying mechanism, the edge leather enters and gradually passes through the clamping channel under the action of the conveying mechanism, realizing the effect of automatic feeding. At the same time, the edge leather gradually approaches the crushing mechanism and is crushed by the crushing mechanism. During the crushing process, the inner contour shape of the clamping channel matches the contour shape of the edge leather, and the edge leather located in the clamping channel is clamped and limited by the clamping mechanism, and the edge leather maintains stable feeding during the crushing process. Since the crushing mechanism and the transmission mechanism cooperate to work, the feeding speed matches the crushing speed of the crushing mechanism. At the same time, the crushing mechanism strikes the side wall plane of the edge leather, and the crushing contact part is controllable, and the crushing accuracy is improved. Therefore, the silicon material formed after the edge leather is crushed meets the size requirements, and the qualified rate of the crushing size is improved. Based on this, the operator only needs to place the edge leather on the conveying mechanism to realize the automatic crushing of the edge leather and can meet the size requirements for feeding into the furnace. At the same time, the crystal bar edge leather crushing equipment can greatly reduce manual operation and reduce the labor intensity of the operator.

[0007] In a possible implementation manner, the crystal bar edge leather crushing equipment includes a diversion structure located above the conveying mechanism. The diversion structure is located on the side of the clamping mechanism away from the crushing mechanism, and the diversion structure has at least one diversion channel, and each diversion channel communicates with the clamping channel of the corresponding clamping mechanism.

[0008] In the case of adopting the above technical solution, each diversion channel is located at the end of the corresponding clamping mechanism away from the crushing mechanism, so that the diversion structure is used to divert the edge leather on the conveying mechanism to the corresponding clamping mechanism and convey it through the clamping channel. Based on this, multiple clamping mechanisms and crushing mechanisms can be used to crush multiple edge leathers simultaneously, improving the crushing efficiency. And, since the diversion structure diverts the edge leather by means of diversion channels, the edge leather is guided to the corresponding clamping mechanism after entering the diversion channels and then is crushed by the crushing mechanism. Therefore, the diversion structure can reduce the risk of edge leather jamming in the conveying mechanism.

[0009] In a possible implementation manner, the diversion structure includes a plurality of guiding baffles, and the area between every two adjacent guiding baffles forms a diversion channel, and the distance between the two guiding baffles forming the diversion channel becomes smaller along the conveying direction of the conveying mechanism.

[0010] In the case of adopting the above technical solution, during the process of the edge leather being conveyed by the conveying mechanism, the edge leather contacts the guiding baffle, and the guiding baffle guides the edge leather to pass through the diversion channel. When the width of the diversion channel gradually decreases, the edge leather is not prone to lateral displacement during the conveying process in the diversion channel, so that the edge leather can be accurately fed into the clamping channel.

[0011] In a possible implementation, the conveying mechanism includes a conveying component and a toggling component. The conveying component is used to convey the edge leather to the corresponding diversion channels. The toggling component is located below the corresponding clamping mechanism and the diversion channels, and is used to convey the edge leather in the diversion channels and pass it through the clamping channels.

[0012] In the case of adopting the above technical solution, the conveying component conveys the edge leather to the corresponding diversion channels and conveys the edge leather to the toggling position of the toggling component. Based on this, the conveying component plays a conveying role and cooperates with the diversion baffle to achieve the diversion function. When the edge leather is conveyed to the toggling component by the conveying component, the edge leather is conveyed by the toggling component and passes through the clamping channels. Based on this, the edge leather is loaded on the toggling component, and the edge leather can stably pass through the clamping channels and be broken by the breaking mechanism.

[0013] In a possible implementation, each toggling component includes a chain and at least one toggling block provided on the chain. When the toggling component conveys the edge leather, one toggling block contacts the end face of the edge leather away from the breaking mechanism.

[0014] In the case of adopting the above technical solution, when the chain is driven, the toggling blocks on the chain move accordingly, providing the toggling power. The toggling blocks toggle the end face of the edge leather under the drive of the chain. Based on this, the edge leather can stably pass through the clamping channels under the action of the toggling blocks and the chain.

[0015] In a possible implementation, each clamping mechanism includes a feeding backing plate located above the conveying mechanism and a pressing component located above the feeding backing plate. The feeding backing plate and the pressing component form a clamping channel; the feeding backing plate has a first groove matching the side wall arc surface of the edge leather, and the feeding backing plate is used to support the side wall arc surface of the edge leather, and the pressing component is used to press the side wall plane of the edge leather.

[0016] In the case of adopting the above technical solution, the feeding backing plate has a first groove matching the side wall arc surface of the edge leather, and the side wall arc surface of the edge leather is supported through the first groove. The pressing component presses the side wall plane of the edge leather. When the edge leather falls on the first groove, it can be stably pressed by the pressing component, and the edge leather can remain stable during the breaking process. At the same time, when the edge leather falls into the first groove and is pressed by the pressing component, the side wall plane of the edge leather can tend to be horizontal, and multiple knocking structures of the breaking mechanism can knock the edge leather simultaneously, and the silicon material generated by the breaking of the edge leather has a pattern, so as to achieve controllable-size breaking.

[0017] In a possible implementation, the feeding backing plate further has a second groove located on the first groove, and the second groove penetrates through the surface of the feeding backing plate close to the conveying mechanism, and the conveying mechanism passes through the second groove and contacts the edge leather.

[0018] When the above technical solution is adopted, the loading pad provides a clearance space for the conveying mechanism through the second groove, and the conveying mechanism can pass through the second groove to contact the edge material, providing conveying power for the loading of the edge material.

[0019] In a possible implementation, the pressing assembly includes a pressing plate and a plurality of lifting rollers distributed along the conveying direction of the conveying mechanism, and the pressing plate is disposed on a lifting roller of the plurality of lifting rollers adjacent to the crushing mechanism.

[0020] In the case of the above technical solution, the pressing plate is close to the crushing mechanism. When the edge material is pressed by the pressing plate, the pressing plate can reduce the vibration generated by the edge material when it is crushed, thereby reducing the problem of cracking of the edge material in the length direction due to the vibration, and then controlling the size of the silicon material produced by the crushing of the edge material to meet the recycling requirements. At the same time, when the lifting roller is pressing the edge material, the edge material gradually approaches the crushing mechanism under the conveying action of the conveying mechanism, and the lifting roller does not generate resistance, thereby making the feeding speed of the edge material controllable.

[0021] In a possible implementation, each crushing mechanism includes at least one set of striking structures, each set of striking structures is located at the end of a clamping channel of a corresponding clamping mechanism. The hardness of a portion of each striking structure used to contact the edge material is greater than the hardness of the edge material, and the direction in which each set of striking structures strikes the edge material forms a preset angle with the length direction of the corresponding edge material.

[0022] When the above technical solution is adopted, the crushing mechanism adopts a knocking structure, and the point contact knocking method can effectively crush the edge materials, and the contact between the edge materials and the crushing mechanism is minimized, reducing the pollution risk caused by the crushing mechanism. The direction in which the knocking structure knocks the edge materials is perpendicular to the length direction of the corresponding edge materials, so that when the edge materials are crushed, the probability of cracking along the length direction is reduced, and finally the linear size of the silicon material produced after the edge materials are crushed is small, meeting the requirements of recycling. At the same time, because the hardness of the part of the knocking structure used to contact the edge materials is greater than the hardness of the edge materials, the knocking structure itself is not easy to break during the crushing of the edge materials, avoiding pollution of the edge materials.

[0023] In one possible implementation, each group of striking structures includes a rotating shaft, multiple striking heads and at least one multi-arm connecting member, each multi-arm connecting member is arranged on the rotating shaft, each multi-arm connecting member has multiple mounting ends, and each striking head is installed on the corresponding mounting end.

[0024] In the case of adopting the above technical solution, the striking head is connected to the rotating shaft through a multi-arm connecting piece, and the striking head rotates following the rotating shaft to achieve periodic point contact with the edge skin material. Thus, when the edge skin material is broken, the sizes of the broken silicon materials tend to be unified. Since the striking head is installed on the installation end of the multi-arm connecting piece, the striking head can be disassembled and replaced periodically according to the usage time to ensure meeting the point contact requirement between the striking head and the edge skin material.

[0025] In a possible implementation manner, the crystal bar edge skin material crushing device further includes a collecting structure. The collecting structure has at least one collecting channel located below the crushing mechanism, and each collecting channel is located at the end of the clamping channel of the corresponding clamping mechanism.

[0026] In the case of adopting the above technical solution, each collecting channel is located at the end of the clamping channel of the corresponding clamping mechanism and below the crushing mechanism. The silicon materials generated by the crushing of the edge skin material fall due to gravity, fall into and pass through the collecting channel, and then flow through the collecting channel to the corresponding collecting device or collecting mechanism, which is convenient for the operators to collect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0028] Figure 1 The structure diagram of the edge skin material in the prior art is shown as an example;

[0029] Figures 2 to 4 The structure diagram of the crystal bar edge skin material crushing device provided by the embodiment of the present invention is shown as an example;

[0030] Figure 5 And Figure 6 The structure diagram of the crystal bar edge skin material crushing device provided by the embodiment of the present invention is shown as an example;

[0031] Figure 7 And Figure 8 The structure diagram of the clamping mechanism provided by the embodiment of the present invention is shown as an example;

[0032] Figures 9 to 11 The structure diagram of the crushing mechanism provided by the embodiment of the present invention is shown as an example;

[0033] Figure 12 The structure diagram of the crystal bar edge skin material crushing device provided by the embodiment of the present invention is shown as an example.

[0034] REFERENCE MARKS:

[0035] 1 - Side leather material, 11 - Side wall arc surface, 12 - Side wall flat surface, 2 - Conveyor mechanism, 21 - Poking component, 211 - Poking block, 22 - Conveyor component, 3 - Clamping mechanism, 31 - Clamping channel, 32 - Loading backing plate, 321 - First groove, 322 - Second groove, 33 - Pressing component / Lifting roller, 34 - Pressing plate, 35 - Mounting plate, 4 - Crushing mechanism, 41 - Knocking structure, 411 - Knocking head, 412 - Multi - arm connecting piece, 413 - Rotating shaft, 5 - Power mechanism, 6 - Controller, 7 - Shunting structure, 71 - Shunting channel, 72 - Flow - guiding baffle, 8 - Collection channel. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined. The meaning of "several" is one or more unless otherwise specifically defined.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0040] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] For a solar cell, its silicon substrate is generally a square silicon wafer. The brief manufacturing process of the silicon wafer is as follows: a single crystal silicon rod is produced by the Czochralski method, the crystal rod is rounded to form a cylindrical crystal rod, and wire cutting is used for cutting. After the crystal rod is cut to form a quasi-square or quasi-polygonal crystal rod, Figure 1 the edge waste material shown in the figure has the shape of an arcuate column. Among them, the edge waste material 1 has a side wall arc surface 11 and a side wall plane 12. The side wall arc surface 11 corresponds to the column surface of the cylindrical crystal rod, and the side wall plane 12 corresponds to the cutting surface of the cylindrical crystal rod. In order to improve the utilization rate of raw materials, the edge waste material 1 needs to be recycled.

[0042] The above-mentioned method for crushing the edge waste material 1 is that the operator manually crushes it through tools such as hammers. Due to the high hardness of the silicon material, the working intensity of the crushing process is high. When manually crushing, in order to prevent the edge waste material 1 from shaking, generally the side wall plane 12 of the edge waste material 1 is facing downwards, and the side wall arc surface 11 of the edge waste material 1 is struck for crushing. Moreover, during the process of the operator manually crushing the edge waste material 1 through tools, it is also easy to introduce impurities such as metal contamination into the edge waste material 1. Not only that, the edge waste material 1 has a side wall arc surface 11, which makes it difficult for the operator to strike the desired point, and it is not easy to control the size of the silicon material after crushing, resulting in inconsistent linear dimensions of the edge waste material 1 manually crushed by the operator and easily generating sizes that do not meet the feeding furnace standards.

[0043] Therefore, for the recycling of the edge waste material 1, the aspects that need to be improved include but are not limited to: First, ensuring that the silicon material crushed from the edge waste material 1 meets the linear dimension requirements for feeding into the furnace. Second, improving the mechanical automation degree of crushing the edge waste material 1, reducing manual operations, thereby improving the crushing efficiency and reducing the labor intensity of workers.

[0044] Figure 2 The structural schematic diagram of the crystal rod edge waste material crushing equipment provided by the embodiment of the present invention is illustrated. As Figure 2As shown in the figure, the present invention provides a crystal bar edge skin material crushing device, including: a conveying mechanism 2 for conveying the edge skin material 1, and the conveying mechanism 2 is in contact with the side wall arc surface 11 of the edge skin material 1. At least one clamping mechanism 3 located above the conveying mechanism 2, the clamping mechanism 3 has a clamping channel 31 extending to the end of the conveying mechanism 2, and the internal contour shape of the clamping channel 31 matches the contour shape of the edge skin material 1. And a crushing mechanism 4 located at the end of the conveying mechanism 2, which is used to cooperate with the conveying mechanism 2 to strike the side wall plane 12 of the edge skin material 1 and crush the edge skin material 1 into silicon materials.

[0045] Figure 3 It is a schematic diagram of the principle of edge skin material crushing in the embodiment of the present invention. For the convenience of description, the working process of the conveying mechanism 2 conveying the edge skin material 1 to the crushing mechanism 4 is defined as feeding, and the process of feeding the edge skin material 1 into the clamping channel 31 is defined as loading.

[0046] As Figure 3 shown, when the edge skin material 1 is loaded into the clamping mechanism 3, the clamping mechanism 3 can play a clamping effect. Subsequently, when the edge skin material 1 is in the clamped state, it is crushed by the crushing mechanism 4 while being fed. For the convenience of description, the length of the edge skin material 1 being conveyed out of the clamping channel 31 and being crushed is defined as A. Therefore, during the crushing interval time of the crushing mechanism 4, when the edge skin material 1 is continuously fed and the feeding length is still A, the linear dimensions of the silicon materials produced by crushing the edge skin material 1 tend to be unified theoretically.

[0047] Based on the edge skin material 1 being a bow-shaped main body, when the side wall arc surface 11 of the edge skin material 1 faces upward, it is difficult for the crushing mechanism 4 to accurately strike the required crushing position, resulting in uncontrollable sizes of the produced silicon materials and being prone to unqualified products. When the side wall arc surface 11 of the edge skin material 1 faces downward, the edge skin material 1 needs a matching structure in the clamping mechanism 3 to maintain its stable feeding and being crushed. The internal contour shape of the clamping channel 31 matches the contour shape of the edge skin material 1. The above-mentioned clamping mechanism 3 is used to clamp the edge skin material 1 when it is crushed, ensuring that the edge skin material 1 keeps being fed continuously during the crushing process, and the edge skin material 1 is restricted within the clamping channel 31. It should be understood that the clamping channel 31 is not necessarily a channel structure that is connected at both ends in the traditional sense, its peripheral wall can be integral, or it can be split, it can be sealed, or it can be partially hollowed out. The clamping mechanism 3 ensures that the edge skin material 1 is continuously fed by the conveying mechanism 2 in the axial direction and restricted in movement in the circumferential direction.

[0048] The crushing speed of the above-mentioned crushing mechanism 4 is coordinated with the feeding speed of the conveying mechanism 2. The specific implementation method of the crushing mechanism 4 is not limited. The crushing unit or crushing structure in the crushing mechanism 4 can crush the part of the edge skin material 1 extending out of the clamping channel 31.

[0049] In a practical production application scenario, an operator places the edge leather material 1 on the conveying mechanism 2, and the conveying mechanism 2 conveys the edge leather material 1 placed thereon along the conveying direction. Subsequently, the edge leather material 1 is conveyed by the conveying mechanism 2 to the front of the entrance of the clamping channel 31 and enters the clamping mechanism 3 through the clamping channel 31. Since the clamping channel 31 extends to the end of the conveying mechanism 2, the edge leather material 1 passes through the clamping channel 31 under the conveying action of the conveying mechanism 2. During the process of passing through the clamping channel 31, the edge leather material 1 gradually approaches the crushing mechanism 4 located at the end of the conveying mechanism 2. Under the conveying action of the conveying mechanism 2 and the clamping action of the clamping mechanism 3, the edge leather material 1 gradually approaches the crushing mechanism 4 and is crushed by the crushing mechanism 4 into silicon materials that meet the size requirements.

[0050] In the case of adopting the above technical solution, the conveying mechanism 2 conveys the edge leather material 1 placed thereon to the crushing mechanism 4, achieving the effect of automatic feeding. Since the crushing mechanism 4 is located at the end of the conveying mechanism 2, the edge leather material 1 enters and gradually passes through the clamping channel 31 under the action of the conveying mechanism 2, realizing the effect of automatic loading. At the same time, the edge leather material 1 gradually approaches the crushing mechanism 4 and is crushed by the crushing mechanism 4. During the crushing process, the internal contour shape of the clamping channel 31 matches the contour shape of the edge leather material 1, and the edge leather material 1 located in the clamping channel 31 is clamped and limited by the clamping mechanism 3, and the edge leather material 1 maintains stable feeding during the crushing process. Since the crushing mechanism 4 cooperates with the transmission mechanism to work, the feeding speed matches the crushing speed of the crushing mechanism 4. At the same time, the crushing mechanism 4 strikes the side wall plane 12 of the edge leather material 1, and the crushing contact part is controllable, improving the crushing accuracy. Therefore, the silicon materials formed after the edge leather material 1 is crushed meet the size requirements, improving the qualified rate of the crushing size. Based on this, the operator only needs to place the edge leather material 1 on the conveying mechanism 2 to realize the automatic crushing of the edge leather material 1 and can meet the size requirements for feeding into the furnace. At the same time, the crystal bar edge leather material crushing equipment can greatly reduce manual operation and reduce the labor intensity of the operator.

[0051] Based on the description of the crystal bar edge leather material crushing equipment in the above embodiments, if further improvement in mechanical automation is desired, then mechanical equipment is required to provide power for crushing and conveying and control the crushing and conveying processes.

[0052] As shown in Figure 4, in a possible implementation, the above-mentioned crystal bar edge skin material crushing device may further include a power mechanism 5, and the power mechanism 5 provides power for the crushing mechanism 4 and the conveying mechanism 2. There are many specific ways of the power mechanism 5, which are not limited herein. For example, in one example, the power mechanism 5 may include a power unit and a transmission unit. The power unit may be a commonly used power unit such as a motor or a push rod, and the transmission unit may be a commonly used transmission unit such as a chain, a gear, and a synchronous belt. The power mechanism 5 is directly or indirectly connected to the conveying mechanism 2 and the crushing mechanism 4 through the power unit. The above-mentioned power mechanism 5 may be an independent mechanism or a mechanism composed of the power parts in the crushing mechanism 4 and the conveying mechanism 2.

[0053] The above-mentioned crystal bar edge skin material crushing device may further include a controller 6 electrically connected to the conveying mechanism 2 and the crushing mechanism 4. The controller 6 controls the crushing speed of the edge skin material 1 by the crushing mechanism 4 according to the conveying speed of the conveying mechanism 2. The controller 6 may also be electrically connected to the power mechanism 5. When the above-mentioned power mechanism 5 is an independent mechanism, the controller 6 is electrically connected to the power mechanism 5. When the above-mentioned power mechanism 5 is a mechanism composed of the power parts in the crushing mechanism 4 and the conveying mechanism 2, the controller 6 is electrically connected to the power parts on the conveying mechanism 2 and the crushing mechanism 4 respectively. It should be noted that the above-mentioned controller 6 may be an independent controller 6 or an overall control unit provided on the crushing mechanism 4, the conveying mechanism 2, and the power mechanism 5.

[0054] The above-mentioned control unit may be any existing control unit that can achieve the above-mentioned control effect and is not limited to a specific form.

[0055] For example, the conveying mechanism 2 may include conveying rollers and a conveyor belt provided on the conveying rollers. The power mechanism 5 is power-connected to the conveying rollers, and the conveying rollers drive the conveyor belt to rotate, so as to realize feeding the edge skin material 1 on the conveyor belt. The controller 6 controls the conveying speed of the conveyor belt by controlling the power output of the power mechanism 5 to the conveying mechanism 2.

[0056] Again, for example, the crushing mechanism 4 may include a crushing unit. The controller 6 controls the crushing speed of the crushing unit by controlling the power output of the power mechanism 5 to the crushing mechanism 4. It should be understood that the above-mentioned crushing speed may be uniform or non-uniform.

[0057] In the case of adopting the above technical solution, the controller 6 is electrically connected to the conveying mechanism 2 and the crushing mechanism 4 respectively, so that the controller 6 can determine the speed of the edge skin material 1 given on the clamping channel 31 according to the conveying speed of the conveying mechanism 2. On this basis, the controller 6 can refer to the speed of the edge skin material 1 given on the clamping channel 31 and control the crushing mechanism 4 to crush the end of the edge skin material 1 extending out of the clamping channel 31, so as to crush the edge skin material 1 into silicon materials meeting the size requirements to meet the recycling requirements.

[0058] Figure 5 And Figure 6 FIG. shows a schematic structural diagram of a crystal bar edge skin material crushing device provided by an embodiment of the present invention. In order to improve the crushing efficiency of the edge skin material 1, the crystal bar edge skin material crushing device provided by the present invention includes a plurality of clamping mechanisms 3. Correspondingly, a plurality of edge skin materials 1 are placed on the conveying mechanism 2 for feeding at the same time. At this time, how to convey the edge skin material 1 to the corresponding clamping channel 31 is a factor affecting the overall crushing efficiency of the edge skin material 1.

[0059] As Figure 5 shown, the crystal bar edge skin material crushing device includes a diversion structure 7 located above the conveying mechanism 2. The diversion structure 7 is located on the side of the clamping mechanism 3 away from the crushing mechanism 4. The diversion structure 7 has at least one diversion channel 71, and each diversion channel 71 communicates with the clamping channel 31 of the corresponding clamping mechanism 3. In actual operation, the operator places the edge skin materials 1 at intervals on the conveyor belt of the conveying mechanism 2, and the edge skin materials 1 are conveyed to the corresponding diversion channels 71 along with the conveyor belt. After passing through the diversion channels 71, the edge skin materials 1 are continuously conveyed to the clamping channels 31.

[0060] In the case of adopting the above technical solution, each diversion channel 71 is located at one end of the corresponding clamping mechanism 3 away from the crushing mechanism 4, so that the diversion structure 7 is used to divert the edge skin materials 1 on the conveying mechanism 2 to the corresponding clamping mechanisms 3 and convey them through the clamping channels 31. Based on this, multiple clamping mechanisms 3 and crushing mechanisms 4 can be used to crush multiple edge skin materials 1 at the same time, improving the crushing efficiency. And because the diversion structure 7 diverts the edge skin materials 1 in the form of diversion channels 71, the edge skin materials 1 are guided to the corresponding clamping mechanisms 3 after entering the diversion channels 71 and then crushed by the crushing mechanism 4. Therefore, the diversion structure 7 can reduce the risk of material blockage of the edge skin materials 1 on the conveying mechanism 2, thereby improving the crushing efficiency.

[0061] As Figure 6 shown, in a possible implementation manner, the diversion structure 7 may include a plurality of diversion baffles 72, and the area between every two adjacent diversion baffles 72 forms a diversion channel 71. The shapes of the two diversion baffles 72 can be set as Figure 6The trapezoidal column shown makes the size of the formed diversion channel 71 smaller along the conveying direction of the conveying mechanism 2.

[0062] When the above technical solution is adopted, the edge material 1 contacts the guide baffle 72 during the conveying process of the conveying mechanism 2, and the guide baffle 72 guides the edge material 1 to pass through the diversion channel 71. When the width of the diversion channel 71 is gradually reduced, the edge material 1 is not easy to deviate left and right during the conveying process in the diversion channel 71, so that the edge material 1 can be accurately delivered to the clamping channel 31.

[0063] In the actual application example, the operator continuously puts the edge material 1 on the conveying mechanism 2, and the load of the conveying mechanism 2 is in a dynamically changing state. At the same time, the vibration or collision of the edge material 1 during the placement process will affect the conveying effect of the conveying mechanism 2. Figure 6 As shown, the conveying mechanism 2 may include a conveying component 22 and a toggle component 21, and the conveying component 22 is used to convey the edge leather material 1 to the corresponding diversion channel 71. The toggle component 21 is located below the corresponding clamping mechanism 3 and the diversion channel 71, and the toggle component 21 is used to convey the edge leather material 1 in the diversion channel 71 and pass through the clamping channel 31. In other words, the conveying component 22 is used to realize the feeding of the edge leather material 1, and the toggle component 21 is used to realize the loading.

[0064] When the above technical solution is adopted, the conveying component 22 conveys the edge leather 1 to the corresponding diversion channel 71, and conveys the edge leather 1 to the toggle position of the toggle component 21. Based on this, the conveying component 22 plays a conveying role, and cooperates with the guide baffle 72 to achieve the diversion effect. When the edge leather 1 is conveyed to the toggle component 21 by the conveying component 22, the edge leather 1 is conveyed by the toggle component 21 and passes through the clamping channel 31. Based on this, the edge leather 1 is loaded on the toggle component 21, and the edge leather 1 can stably pass through the clamping channel 31 and be crushed by the crushing mechanism 4.

[0065] In one possible implementation, Figure 6 As shown, each shifting assembly 21 may include a chain and at least one shifting block 211 arranged on the chain. When the shifting assembly 21 conveys the edge material 1, one shifting block 211 contacts the end surface of the edge material 1 away from the crushing mechanism 4.

[0066] When the above technical solution is adopted, when the chain is driven, the shifting block 211 on the chain follows the movement and provides shifting power. Driven by the chain, the shifting block 211 shifts the end surface of the edge material 1. Based on this, the edge material 1 can stably pass through the clamping channel 31 under the action of the shifting block 211 and the chain.

[0067] like Figure 7 and Figure 8As shown, in a possible implementation, each clamping mechanism 3 includes a loading pad 32 located above the conveying mechanism 2, and a clamping assembly 33 located above the loading pad 32, the loading pad 32 and the clamping assembly 33 form a clamping channel 31; the loading pad 32 has a first groove 321 matching the side wall arc surface 11 of the edge material 1, the loading pad 32 is used to support the side wall arc surface 11 of the edge material 1, and the clamping assembly 33 is used to apply pressure to the side wall plane 12 of the edge material 1.

[0068] Based on the processing error, the thickness tolerance of the edge material 1 is generally within 2 mm, and the clamping assembly 33 can adjust the height of the contact portion between the clamping assembly 33 and the edge material 1 according to the thickness of the edge material 1. For example, the clamping assembly 33 can be a self-adjusting clamping assembly 33, and the clamping mechanism 3 also includes a mounting plate 35 for limiting the clamping assembly 33, and the mounting plate 35 is used to limit the lifting height range of the clamping assembly 33. When the edge material 1 passes through the clamping channel 31, the edge material 1 and the clamping assembly 33 are squeezed, and the clamping assembly 33 is lifted and lowered under the restriction of the mounting plate 35. Based on the accuracy of the crystal rod processing, the height difference of the edge material 1 after cutting is within 2 mm, and the above-mentioned self-adjusting clamping assembly 33 can achieve the clamping effect.

[0069] In the case of adopting the above technical solution, the loading pad 32 has a first groove 321 that matches the side wall arc surface 11 of the edge material 1. The first groove 321 is used to support the side wall arc surface 11 of the edge material 1. The pressing component 33 applies pressure to the side wall plane 12 of the edge material 1. The edge material 1 falls on the first groove 321 and can be stably pressed by the pressing component 33. The edge material 1 can remain stable during the crushing process. At the same time, when the edge material 1 falls into the first groove 321 and the pressing component 33 applies pressure, the side wall plane 12 of the edge material 1 can tend to be horizontal, and the multiple knocking structures 41 of the crushing mechanism 4 can knock the edge material 1 at the same time. The silicon material produced by the crushing of the edge material 1 has a regularity, thereby achieving controllable size crushing.

[0070] like Figure 8 As shown, in a possible implementation, the loading pad 32 also has a second groove 322 located on the first groove 321, and the second groove 322 penetrates to the surface of the loading pad 32 close to the conveying mechanism 2, and the conveying mechanism 2 contacts the edge material 1 through the second groove 322. The above-mentioned conveying mechanism 2 may include a toggle assembly 21 for loading, and the toggle block 211 in the toggle assembly 21 is used to toggle the end surface of the edge material 1, and the second groove 322 is used to provide a clearance space for the movement of the toggle block 211. The fine silicon slag produced by crushing is discharged from the second groove 322 to avoid the occurrence of material jamming.

[0071] In the case of adopting the above technical solution, the loading backing plate 32 provides a space for the conveying mechanism 2 through the second groove 322. The conveying mechanism 2 can pass through the second groove 322 to contact the edge leather material 1 and provide conveying power for loading the edge leather material 1.

[0072] As Figure 7 shown, in a possible implementation manner, the pressing assembly 33 includes a pressing plate 34 and a plurality of lifting rollers 33 distributed along the conveying direction of the conveying mechanism 2. The pressing plate 34 is arranged on one of the lifting rollers 33 of the plurality of lifting rollers 33 adjacent to the crushing mechanism 4.

[0073] Among the above-mentioned plurality of lifting rollers 33, the heights of the three lifting rollers 33 that first contact the edge leather material 1 gradually decrease from the conveying mechanism 2. The edge leather material 1 is gradually pressed, which has the effect of guiding the edge leather material 1 into the clamping channel 31. When the edge leather material 1 is loaded close to the crushing mechanism 4, the pressing plate 34 presses the edge leather material 1. When the pressing plate 34 presses the edge leather material 1, the pressing plate 34 can reduce the vibration generated by the edge leather material 1 during crushing, and at the same time, it can make the force on the end of the edge leather material 1 close to the crushing mechanism 4 uniform when broken, reducing the probability of the edge leather material 1 cracking in the length direction. Since the lifting roller 33 itself has a rotating shaft 413, during the loading process of the edge leather material 1, the lifting roller 33 rolls relative to the edge leather material 1, so the lifting roller 33 will not generate additional resistance to the loading of the edge leather material 1.

[0074] In the case of adopting the above technical solution, the pressing plate 34 is adjacent to the crushing mechanism 4. After the edge leather material 1 is pressed by the pressing plate 34, the pressing plate 34 can reduce the vibration generated by the edge leather material 1 during crushing, thereby reducing the problem of cracking of the edge leather material 1 in the length direction due to vibration, and further controlling the size of the silicon material generated by the crushing of the edge leather material 1 to meet the recycling requirements. At the same time, during the process of pressing the edge leather material 1 by the lifting roller 33, the edge leather material 1 gradually approaches the crushing mechanism 4 under the conveying action of the conveying mechanism 2, and the lifting roller 33 will not generate resistance, thereby making the feeding speed of the edge leather material 1 controllable.

[0075] As Figures 9 - 11 shown, in a possible implementation manner, each crushing mechanism 4 includes at least one set of knocking structures 41, and each set of knocking structures 41 is located at the end of the clamping channel 31 of the corresponding clamping mechanism 3. The hardness of the part of each knocking structure 41 for contacting the edge leather material 1 is greater than the hardness of the edge leather material 1, and the knocking direction of each set of knocking structures 41 on the edge leather material 1 forms a preset angle with the length direction of the corresponding edge leather material 1.

[0076] Each of the above-mentioned percussion structures 41 may have a plurality of percussion heads 411 for point contact with the edge leather 1 (i.e., the crushing unit described above). It should be understood that the above-mentioned point contact means that the contact part of the percussion head 411 and the edge leather 1 is small enough, and the specific contact area needs to be determined according to external factors such as machining. For example, the contact area is less than 1mm 2 can be understood as point contact.

[0077] The above preset angle may be 80°-100°. In actual applications, the arrangement direction of the percussion head 411 and the length direction of the edge leather 1 are generally 90°. When the percussion structure 41 crushes the edge leather 1, the possibility of the edge leather 1 splitting along the length direction is the lowest. Each time the edge leather 1 is crushed by the percussion structure 41, it is equivalent to cutting off a section along the cross-section, and the interval of each cut is the same. Therefore, the linear dimensions of the silicon material obtained after the edge leather 1 is crushed tend to be unified.

[0078] In order to ensure that the silicon material is in a pollution-free state before being put into the furnace, on this premise, it is to ensure that the silicon material meets the dimensional requirements for being put into the furnace. Therefore, the hardness of the part of each percussion structure 41 in contact with the edge leather 1 is greater than the hardness of the edge leather 1. For example, the part of each percussion structure 41 in contact with the edge leather 1 is a tungsten alloy such as tungsten cobalt alloy or tungsten steel alloy. The Mohs hardness of crystalline silicon is, while the hardness of tungsten cobalt alloy or tungsten steel alloy is greater than that of crystalline silicon. At the same time, the tungsten alloy has good ductility and low brittleness. Therefore, during the process of the percussion structure 41 crushing the edge leather 1, the percussion structure 41 itself is not likely to generate metal debris, preventing metal pollution of the silicon material.

[0079] As can be seen from the above, since the hardness of the part of the percussion structure 41 in contact with the edge leather 1 is greater than the hardness of the edge leather 1, during the process of crushing the edge leather 1, the percussion structure 41 itself is not likely to break (compared with the edge leather 1), avoiding pollution to the edge leather 1.

[0080] In the case of adopting the above technical solution, the crushing mechanism 4 adopts the percussion structure 41. The point-contact percussion method can effectively crush the edge leather 1, and the contact between the edge leather 1 and the crushing mechanism 4 is minimized, reducing the pollution risk brought by the crushing mechanism 4. The direction of the percussion structure 41 hitting the edge leather 1 is perpendicular to the length direction of the corresponding edge leather 1, so that when the edge leather 1 is crushed, the probability of splitting along its length direction is reduced. Finally, the linear dimensions of the silicon material generated after the edge leather 1 is crushed are small, meeting the requirements for recycling. At the same time, since the hardness of the part of the percussion structure 41 in contact with the edge leather 1 is greater than the hardness of the edge leather 1, during the process of crushing the edge leather 1, the percussion structure 41 itself is not likely to break, avoiding pollution to the edge leather 1.

[0081] Such as Figures 9 - 11As shown, in a possible implementation, each set of knocking structures 41 includes a rotating shaft 413, a plurality of knocking heads 411, and at least one multi-arm connecting member 412. Each multi-arm connecting member 412 is disposed on the rotating shaft 413. Each multi-arm connecting member 412 has a plurality of mounting ends, and each knocking head 411 is mounted on a corresponding mounting end.

[0082] The above-mentioned rotating shaft 413 is connected to the power mechanism 5. The power mechanism 5 drives the rotating shaft 413 to rotate, and the plurality of knocking heads 411 move along the circumference of the rotating shaft 413. When the edge leather material 1 is broken, the plurality of knocking heads 411 are in point contact with the edge leather material 1 simultaneously.

[0083] The rotating shafts 413 between the multiple sets of knocking structures 41 in the above-mentioned crushing mechanism 4 can be the same rotating shaft 413. A plurality of multi-arm connecting members 412 are provided on the rotating shaft 413, and corresponding knocking heads 411 are provided on each multi-arm connecting member 412.

[0084] For example, as Figures 9 - 11 shown, each crushing mechanism 4 includes four sets of knocking structures 41, and each set of knocking structures 41 includes three knocking heads 411. The four sets of knocking structures 41 are arranged in a circular pattern along the rotating shaft 413. When the edge leather material 1 is broken, the three knocking heads 411 are in point contact with the edge leather material 1 simultaneously, and the line connecting the three points is perpendicular to the length direction of the edge leather material 1.

[0085] In the case of adopting the above technical solution, the knocking head 411 is connected to the rotating shaft 413 through the multi-arm connecting member 412. The knocking head 411 rotates with the rotating shaft 413 to achieve periodic point contact with the edge leather material 1. Thus, when the edge leather material 1 is broken, the size of the silicon material generated by the crushing tends to be unified. Since the knocking head 411 is mounted on the mounting end of the multi-arm connecting member 412, the knocking head 411 can be disassembled and replaced periodically according to the usage time to ensure that the point contact requirement between the knocking head 411 and the edge leather material 1 is met.

[0086] As Figure 12 shown, in a possible implementation, the ingot edge leather material crushing device further includes a collection structure. The collection structure has at least one collection channel 8 located below the crushing mechanism 4, and each collection channel 8 is located at the end of the clamping channel 31 of the corresponding clamping mechanism 3.

[0087] In the case of adopting the above technical solution, each collection channel 8 is located at the end of the clamping channel 31 of the corresponding clamping mechanism 3 and below the crushing mechanism 4. The silicon material generated by the crushing of the edge leather material 1 falls due to gravity, falls into and passes through the collection channel 8, and then flows through the collection channel 8 to the corresponding collection device or collection mechanism, facilitating collection by the operator.

[0088] In a possible implementation manner, the ingot edge scrap crushing device provided by the embodiments of the present invention may further include a collection mechanism. The crushed silicon wafers enter the collection structure through the collection channel 8. The collection mechanism includes a vibrating screen and a plurality of collection troughs. The silicon materials of different size specifications are screened by the vibrating screen to obtain various specifications of silicon materials, and then fall into the corresponding collection troughs. The operator collects and packages the silicon materials with classified size specifications.

[0089] In the description of the above embodiments, the specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0090] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A crystal bar edge scrap crushing device, characterized in that include: A conveying mechanism for conveying the edge material, wherein the conveying mechanism is in contact with the curved surface of the side wall of the edge material; At least one clamping mechanism located above the conveying mechanism, the clamping mechanism having a clamping channel extending to the end of the conveying mechanism, the inner contour shape of the clamping channel matching the contour shape of the edge material; A crushing mechanism located at the end of the conveying mechanism is used to cooperate with the conveying mechanism to knock the side wall plane of the edge material and crush the edge material into silicon material; and a power mechanism, the power mechanism providing power for the crushing mechanism and the conveying mechanism; Among them, each of the clamping mechanisms includes a loading pad located above the conveying mechanism, and a clamping assembly located above the loading pad, and the loading pad and the clamping assembly form the clamping channel; the loading pad has a first groove matching the side wall arc surface of the edge material, the loading pad is used to support the side wall arc surface of the edge material, and the clamping assembly is used to apply pressure to the side wall plane of the edge material.

2. The crystal bar edge skin material crushing device according to claim 1, characterized in that, The crystal rod edge skin crushing equipment includes a diversion structure located above the conveying mechanism, the diversion structure is located on the side of the clamping mechanism away from the crushing mechanism, the diversion structure has at least one diversion channel, and each of the diversion channels is connected to the clamping channel of the corresponding clamping mechanism.

3. The crystal bar edge leather crushing device according to claim 2, characterized in that, The diversion structure includes a plurality of guide baffles, and the area between every two adjacent guide baffles forms a diversion channel. The distance between the two guide baffles forming the diversion channel decreases along the conveying direction of the conveying mechanism.

4. The ingot edge skin material crushing device according to claim 2 or 3, characterized in that, The conveying mechanism comprises a conveying component and a shifting component, and the conveying component is used to convey the edge material to the corresponding diversion channel; The toggle assembly is located below the corresponding clamping mechanism and the diversion channel, and the toggle assembly is used to transfer the edge material in the diversion channel and pass through the clamping channel.

5. The crystal bar edge skin material crushing equipment according to claim 4, characterized in that, Each of the shifting assemblies comprises a chain and at least one shifting block arranged on the chain. When the shifting assembly conveys the edge material, one of the shifting blocks contacts the end surface of the edge material away from the crushing mechanism.

6. The crystal bar edge skin material crushing device according to claim 5, wherein, The loading pad also has a second groove located on the first groove, and the second groove penetrates to the surface of the loading pad close to the conveying mechanism. The conveying mechanism contacts the edge material through the second groove.

7. The crystal bar edge scrap crushing equipment according to claim 5, characterized in that The pressing assembly includes a pressing plate and a plurality of lifting rollers distributed along the conveying direction of the conveying mechanism, and the pressing plate is arranged on one of the plurality of lifting rollers adjacent to the crushing mechanism.

8. The crystal bar edge leather crushing device according to claim 1, wherein, Each of the crushing mechanisms comprises at least one set of knocking structures, and each set of the knocking structures is located at the end of the clamping channel of the corresponding clamping mechanism; The hardness of the portion of each knocking structure used to contact the edge material is greater than the hardness of the edge material, and the direction in which each group of knocking structures knocks the edge material forms a preset angle with the length direction of the corresponding edge material.

9. The crystal bar edge leather crushing device according to claim 8, wherein, Each of the knocking structures includes a rotating shaft, a plurality of knocking heads, and at least one multi-arm connecting member. Each of the multi-arm connecting members is provided on the rotating shaft. Each of the multi-arm connecting members has a plurality of mounting ends, and each of the knocking heads is mounted on a corresponding mounting end.

10. The crystal bar edge scrap crushing equipment according to claim 1, characterized in that, The ingot edge skin crushing device further includes a collection structure. The collection structure has at least one collection channel located below the crushing mechanism. Each of the collection channels is located at an end of the clamping channel of the corresponding clamping mechanism.

Images