A bag cutting blade and knife

Abstract

This application discloses a bag cutting blade, which includes an mounting part and a cutting part, wherein the mounting part is connected to the cutting part; the end of the cutting part away from the mounting part is a first cutting tip, and the side of the cutting part away from the mounting part is provided with an outer cutting edge extending from the first cutting tip. The outer cutting edge is used to enlarge the opening on the bag after the first cutting tip pierces the bag. The bag cutting blade provided by this application, by providing a first cutting tip at the end of the cutting part away from the mounting part, can achieve bag breaking. Combined with the outer cutting edge on the side of the cutting part away from the mounting part, it can quickly enlarge the opening while the first cutting tip pierces the bag, achieving rapid cutting of the bag and improving the bag cutting efficiency.

Description

Technical Field

[0001] This application relates to the field of semiconductor processing equipment, and in particular to a bag cutting blade and tool. Background Technology

[0002] Silicon is the raw material for silicon rod production. For ease of transportation, silicon is sealed in plastic packaging, called a material bag. Currently, these bags are cut by hand with a utility knife. However, because silicon requires high cleanliness, the packaging bags are typically made of thick and strong materials, making manual cutting of the bags time-consuming and labor-intensive.

[0003] No effective solution has yet been proposed to address the problem of low cutting efficiency of material bags in related technologies. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a bag cutting blade and a cutting tool to improve the cutting efficiency of bags.

[0005] In a first aspect, a bag cutting blade is provided, the blade including an mounting part and a cutting part, wherein the mounting part is connected to the cutting part; the end of the cutting part away from the mounting part is a first blade tip, and the side of the cutting part away from the mounting part is provided with an outer cutting edge extending from the first blade tip, the outer cutting edge being used to enlarge the opening on the bag after the first blade tip pierces the bag.

[0006] In one embodiment, the cutting portion has at least one protruding second blade tip on the side near the mounting portion.

[0007] In one embodiment, the outer cutting edge is located between the first cutting tip and the second cutting tip along the extending direction of the cutting portion.

[0008] In one embodiment, the cutting portion has an inner cutting edge extending from the first blade tip on the side near the mounting portion.

[0009] In one embodiment, taking the position where the cutting part is connected to the mounting part as the starting point, the cutting part is provided with a beveled edge on the side near the mounting part.

[0010] In one embodiment, the cutting portion is an inwardly curved blade.

[0011] In one embodiment, the mounting portion includes a plurality of perforated mounting holes.

[0012] In a second aspect, a bag cutting tool is provided, the bag cutting tool including a drive assembly, a mounting assembly, and a bag cutting blade as described in any embodiment of the first aspect, wherein the mounting assembly is connected to the drive assembly and the bag cutting blade respectively.

[0013] In one embodiment, the mounting assembly includes a blade holder and a pressure plate, wherein the blade holder, the mounting plate of the bag cutting blade, and the pressure plate are stacked sequentially from bottom to top and secured with bolts.

[0014] In one embodiment, the drive assembly includes a rotary drive and a translational drive, the rotary drive and the translational drive being respectively connected to the mounting assembly.

[0015] The bag cutting blade provided in this application can break the bag by setting a first cutting tip at the end of the cutting part away from the mounting part. In conjunction with the outer cutting edge on the side of the cutting part away from the mounting part, the opening can be quickly enlarged while the first cutting tip penetrates the bag, thereby achieving rapid cutting of the bag and improving the cutting efficiency of the bag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the bag cutting blade according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the structure of a bag cutting tool according to an embodiment of this application;

[0018] The following are the reference numerals: 10, bag cutting blade; 20, mounting assembly; 11, cutting section; 12, mounting section; 21, blade holder; 22, pressure plate; 111, first blade tip; 112, outer cutting edge; 113, second blade tip; 114, inner cutting edge; 115, oblique cutting edge. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] In related technologies, workers manually cut the material bags using utility knives. However, due to the high strength of the material bags, the utility knife may fail to cut them on the first attempt. Furthermore, manual cutting of the material bags is time-consuming and labor-intensive. Therefore, how to effectively improve the cutting efficiency of the material bags has become a crucial problem that urgently needs to be solved in the current silicon rod production process.

[0026] like Figures 1 to 2 This application provides a bag cutting blade 10, which includes a mounting part 12 and a cutting part 11. The mounting part 12 and the cutting part 11 are connected to form an arc shape close to an "L". The mounting part 12 and the cutting part 11 can be designed separately and connected together by welding or bolts. The bolt connection facilitates the replacement and maintenance of the cutting part 11. Preferably, the mounting part 12 and the cutting part 11 are designed as a single piece. The single-piece design has better strength, can effectively improve the blade life, and improve the production safety of the cutting process. The mounting part 12 is mainly used to install the blade to an external drive device, such as a drive motor, a multi-degree-of-freedom robotic arm, or a robot. By installing the blade to the external drive device through the mounting part 12, the blade can be automatically controlled, replacing the manual cutting method. Automated bag cutting will greatly improve the cutting efficiency of bags. The end of the cutting part 11 away from the mounting part 12 is a first cutting tip 111. The first cutting tip 111 is used to pierce the bag and form an opening in the bag. The cutting section 11 has an outer cutting edge 112 extending from the first blade tip 111 on the side away from the mounting section 12. This outer side of the cutting section 11 is the side away from the mounting section 12. After the first blade tip 111 pierces the bag, the outer cutting edge 112, as the first blade tip 111 penetrates deeper, further cuts through the bag, enlarging the opening and achieving the purpose of cutting the bag. In this embodiment, the bag cutting blade 10 is connected to an external drive device via the mounting section 12, enabling automated movement of the cutting section 11. The first blade tip 111 of the cutting section 11 pierces the bag, and the outer cutting edge 112, extending from the first blade tip 111, further enlarges the opening created by the first blade tip 111 on the bag. This achieves automated bag cutting and improves bag cutting efficiency.

[0027] In one embodiment, at least one protruding second blade tip 113 is provided on the side of the cutting portion 11 near the mounting portion 12. Specifically, the side of the cutting portion 11 near the mounting portion 12 is the inner side of the cutting portion 11. Providing the second blade tip 113 on the inner side of the cutting portion 11 allows for puncturing of the bag at multiple different locations. Particularly useful when the bag has multiple layers of packaging, the first blade tip 111 and the second blade tip 113 arrive at the packaging bag at different times, preventing single-blade failure. Furthermore, the combined action of the first blade tip 111 and the second blade tip 113 improves the cutting efficiency of the packaging bag. Preferably, the extension direction of the second blade tip 113 is different from the extension direction of the first blade tip 111. For example, the first blade tip 111 is located at the end of the cutting part 11 and is consistent with the extension direction of the cutting part 11. The extension direction of the second blade tip 113 can be approximately perpendicular to the extension direction of the cutting part 11. When the cutting part 11 rotates or translates, the first blade tip 111 and the second blade tip 113 will pierce or pierce the bag at different angles, thereby improving the success rate of bag cutting.

[0028] In one embodiment, along the extending direction of the cutting portion 11, the outer cutting edge 112 is located between the first cutting tip 111 and the second cutting tip 113. Specifically, to ensure the strength of the bag cutting tool, the cutting portion 11 must have a certain thickness, for example, the thickness of the cutting portion 11 is between 3 and 8 mm, and the cutting edge angle of the outer cutting edge 112 is between 12° and 18°. The outer cutting edge 112 is located on the outside of the cutting portion 11 between the first cutting tip 111 and the second cutting tip 113, which can ensure the strength of the second cutting tip 113 on the outside of the corresponding position of the cutting portion 11, ensure the smooth insertion of the second cutting tip 113, and reduce the deformation of the bag cutting blade 10 after long-term use. The bag cutting blade 10 of this embodiment has better blade strength and a longer service life.

[0029] In one embodiment, the cutting section 11 has an inner cutting edge 114 extending from the first blade tip 111 on the side near the mounting section 12. Specifically, the side of the cutting section 11 near the mounting section 12 is the inner side of the cutting section 11. The inner cutting edge 114 on the inner side of the cutting section 11 allows the opening to widen further inwards as the first blade tip 111 penetrates the bag. The inner cutting edge 114, in conjunction with the outer cutting edge 112, can quickly widen the opening created by the blade tip, rapidly cutting open the bag. Furthermore, if the bag cutting blade 10 rotates and / or translates under external driving, the inner cutting edge 114 can continue cutting the bag while rotating, extending the bag opening closer to the mounting section 12. In the translational state, the inner cutting edge 114 can cut the bag using a harvesting action under the traction of the external driving device. The inner cutting edge 114 in this embodiment further improves the bag cutting efficiency of the bag cutting blade 10.

[0030] In one embodiment, taking the connection point between the cutting part 11 and the mounting part 12 as the starting point, a beveled cutting edge 115 is provided on the side of the cutting part 11 near the mounting part 12. Specifically, the beveled cutting edge 115 can cut the bag while it is being retracted during rotation and translation, thus completely removing the top of the bag. Preferably, when the bag cutting blade 10 adopts an integrated design, the beveled cutting edge 115 is an arc-shaped cutting edge extending from the mounting part 12 to the cutting part 11, and the arc-shaped cutting edge has higher blade strength. Through the beveled cutting edge 115 of this embodiment, the bag can be retracted and cut, improving the success rate and efficiency of bag cutting.

[0031] In one embodiment, the cutting part 11 is an inner arc-shaped blade. The inner arc-shaped blade can gather the bag in a rotating state and efficiently cut the gathered bag in a translational state.

[0032] In one embodiment, the mounting portion 12 includes a plurality of perforated mounting holes. Specifically, these mounting holes are used to mate with screws or bolts to mount the bag-cutting blade 10 to an external drive device such as a robotic arm. The mounting holes may be located at the end of the mounting portion 12 away from the cutting portion 11. The mounting holes may be arranged in a matrix, a reflective dot matrix, or a linear array, or a combination of several arrangements. Preferably, mounting holes may also be provided at the end of the cutting portion 11 near the mounting portion 12 to improve installation stability.

[0033] This application also provides a bag cutting tool, such as Figure 2 As shown, the bag cutting tool includes a drive assembly, a mounting assembly 20, and a bag cutting blade 10 as described in any embodiment of the first aspect. The mounting assembly 20 is connected to both the drive assembly and the bag cutting blade 10. The mounting assembly 20 is used to mount the bag cutting blade 10 to the drive assembly. The drive assembly is used to drive the bag cutting blade 10 to move in a preset direction to perform a cutting action or reset. For example, the drive assembly is used to drive the bag cutting blade 10 to approach the bag, then drive the bag cutting blade 10 to rotate to pierce the bag, and finally translate the bag cutting blade 10 to harvest the bag, thus achieving complete cutting of the bag.

[0034] In one embodiment, the mounting assembly 20 includes a blade holder 21 and a pressure plate 22. The blade holder 21, the mounting portion 12 of the bag cutting blade 10, and the pressure plate 22 are stacked sequentially from bottom to top and fixed with bolts. The blade holder 21 supports the bag cutting blade 10. The pressure plate 22 fixes the bag cutting blade 10 from above. The blade holder 21 and the pressure plate 22 have mounting holes adapted to the position, number, and size of the bag cutting blade 10. Bolts fix the pressure plate 22, the bag cutting blade 10, and the blade holder 21 through the mounting holes. Preferably, the end of the blade holder 21 away from the bag cutting blade 10 is also provided with a rotating connection portion for driving the assembly connection to achieve rotation of the entire bag cutting blade 10.

[0035] In one embodiment, the drive assembly includes a rotary drive and a translational drive, both connected to the mounting assembly 20. The rotary drive drives the mounting assembly 20 to rotate the bag cutting blade 10. The translational drive drives the mounting assembly 20 to translate the bag cutting blade 10 along its inner or outer side to cut the bag or reset it. The rotary drive includes, but is not limited to, a rotary cylinder or a motor. The translational drive includes, but is not limited to, a telescopic cylinder or a motor. The control of the rotary and translational drives can be based on a pre-designed control program executed periodically, or it can be controlled by personnel issuing corresponding control commands through relevant control buttons. The bag cutting tool of this application achieves automated and efficient cutting of bags.

[0036] In one preferred embodiment, a bag cutting tool is provided, wherein the bag cutting blade 10 includes a first cutting tip 111, a second cutting tip 113, an outer cutting edge 112, an inner cutting edge 114, and a beveled cutting edge 115. This bag cutting tool is used to cut silicon material bags comprising double-layer packaging bags, providing a bag cutting method. The method includes: rotating the bag cutting blade 10, causing the first cutting tip 111 to successively pierce the inner and outer bags on the right side and the inner and outer bags on the left side of the bag; during rotation, the outer cutting edge 112 enlarges the opening created by the first cutting tip 111; then, controlling the bag cutting blade 10 to move laterally, causing the inner cutting edge 114 and the beveled cutting edge 115 to slice through the inner and outer bags on both sides of the bag; during the lateral movement, the second cutting tip 113 pierces the inner and outer bags at the front of the current bag, ensuring that the bag cutting blade 10 continues to slice through the inner and outer bags rather than tear the bag, thus preventing bag fragments from falling into the silicon material due to tearing. The bag cutting tool of this embodiment achieves safe and efficient bag cutting.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bag cutting blade (10), characterized in that, The bag cutting blade (10) includes a mounting part (12) and a cutting part (11), wherein, The mounting part (12) is connected to the cutting part (11); The end of the cutting part (11) away from the mounting part (12) is a first blade tip (111). The side of the cutting part (11) away from the mounting part (12) is provided with an outer cutting edge (112) extending from the first blade tip (111). The outer cutting edge (112) is used to enlarge the opening on the material bag after the first blade tip (111) pierces the material bag.

2. The bag cutting blade (10) according to claim 1, characterized in that, The cutting part (11) has at least one protruding second blade tip (113) on the side near the mounting part (12).

3. The bag cutting blade (10) according to claim 2, characterized in that, Along the extending direction of the cutting portion (11), the outer cutting edge (112) is located between the first cutting tip (111) and the second cutting tip (113).

4. The bag cutting blade (10) according to claim 1, characterized in that, The cutting part (11) has an inner cutting edge (114) extending from the first blade tip (111) on the side near the mounting part (12).

5. The bag cutting blade (10) according to claim 1, characterized in that, Starting from the position where the cutting part (11) connects to the mounting part (12), the cutting part (11) is provided with a beveled edge (115) on the side of the mounting part (12) near the mounting part (12).

6. The bag cutting blade (10) according to claim 1, characterized in that, The cutting part (11) is an inner arc-shaped blade.

7. The bag cutting blade (10) according to claim 1, characterized in that, The mounting part (12) includes several hollowed-out mounting holes.

8. A bag cutting tool, characterized in that, The bag cutting tool includes a drive assembly, a mounting assembly (20), and a bag cutting blade (10) as described in any one of claims 1 to 7, wherein the mounting assembly (20) is connected to the drive assembly and the bag cutting blade (10) respectively.

9. The bag cutting tool according to claim 8, characterized in that, The mounting assembly (20) includes a blade holder (21) and a pressure plate (22). The blade holder (21), the mounting part (12) of the bag cutting blade (10) and the pressure plate (22) are stacked from bottom to top and fixed with bolts.

10. The bag cutting tool according to claim 8, characterized in that, The drive assembly includes a rotary drive and a translation drive, which are respectively connected to the mounting assembly (20).

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