Smart screen

Abstract

This invention relates to the field of material screening technology and discloses an intelligent screen. The intelligent screen includes a screen body, a cutting line, and an optical fiber capable of transmitting light to a detection device, arranged sequentially along the material movement direction. The screen body has multiple screen holes. The cutting line and optical fiber are staggered from the screen holes along the material movement direction to avoid material passing through them. When the screen body is damaged, the cutting line can cut the optical fiber under the impact of the material passing through the damaged area. When the intelligent screen is damaged, material will pass through the damaged area and directly contact the cutting line. After being impacted by the material, the cutting line will detach from the intelligent screen. During the detachment process, the cutting line will further cut the optical fiber located below it. This allows for real-time monitoring of the intelligent screen's operating status via optical fiber signals and timely handling of screen damage, effectively avoiding losses caused by the abnormal passage of unqualified materials and improving overall production efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of material screening technology, and more specifically to an intelligent screen. Background Technology

[0002] In the food processing and bio-fermentation industries, grains are the primary raw material and must undergo a series of pretreatment steps before fermentation to ensure the quality of the raw materials and the final product. These steps include impurity removal, iron removal, crushing, and sieving. These pretreatment processes are crucial for removing foreign objects and impurities that may affect the fermentation effect and the quality of the final product.

[0003] However, in actual operation, equipment malfunctions or improper operation, such as a faulty iron separator or abnormal equipment after the iron tapping device, may cause iron impurities to fall off, damaging the screen. If screen damage is not detected and repaired in time, it will seriously affect screening efficiency. A damaged screen cannot effectively separate materials, causing the desired material to mix with impurities. This not only affects subsequent processes but may also lead to substandard materials being mixed into the finished product, reducing product uniformity and purity, ultimately affecting product quality.

[0004] Furthermore, damaged screens can increase equipment wear. Material that is not properly screened may contain more impurities or larger particles, which cause additional wear to the equipment as they move through it. At the same time, large particles cannot be effectively utilized by yeast, which not only affects fermentation efficiency but may also increase production costs.

[0005] Given the above issues, how to monitor the screen status in real time is one of the current challenges in the industry. Summary of the Invention

[0006] The purpose of this invention is to solve the problem in the existing technology that the damage to the screen cannot be detected in time, thus adversely affecting subsequent production.

[0007] To achieve the above objectives, the present invention provides an intelligent screen, which includes a screen body, a cutting line, and an optical fiber capable of transmitting light to a detection device, arranged sequentially along the material movement direction. The screen body is provided with multiple screen holes, and the cutting line and optical fiber are staggered from the screen holes along the material movement direction to avoid material passing through the screen holes. When the screen body is damaged, the cutting line can cut the optical fiber under the impact of the material passing through the damaged area.

[0008] Optionally, the smart screen includes a first fixing device for fixing the cutting line, the first fixing device being disposed at the edge of the lower surface of the screen body.

[0009] Optionally, the first fixing device includes a first fixing member and a first U-shaped member. There are two first fixing members, which are radially distributed along the cutting line and fixed to the lower surface. The two ends of the first U-shaped member are respectively connected to the ends of the two first fixing members away from the lower surface.

[0010] Optionally, the first fastener and the first U-shaped member are threaded together.

[0011] Optionally, the smart screen includes a second fixing device for fixing optical fibers, the second fixing device being disposed at the edge of the lower surface of the screen body.

[0012] Optionally, the second fixing device includes two second fixing members and a second U-shaped member. The two second fixing members are distributed radially along the optical fiber and fixed on the edge of the lower surface. The two ends of the second U-shaped member are respectively connected to the ends of the two second fixing members away from the lower surface. The height of the second fixing member is greater than the height of the first fixing member and the height difference is greater than or equal to the diameter of the cutting line.

[0013] Optionally, multiple cutting lines are provided, and the multiple cutting lines are parallel to each other.

[0014] Optionally, multiple optical fibers are provided, and the multiple optical fibers are parallel to each other.

[0015] Optionally, the screen body is square, and multiple screen holes form a rectangular array.

[0016] Optionally, the fiber extends in a direction perpendicular to the direction of the cleaving line.

[0017] Through the above technical solution, when the intelligent screen is operating normally, the material is screened by the screen holes on the upper surface of the screen body. Qualified material passes through the screen holes and enters the next stage. When the intelligent screen is damaged, the material will pass through the damaged area and directly contact the cutting wire. After being impacted by the material, the cutting wire will detach from the intelligent screen, and during the detachment process, the cutting wire will further sever the optical fiber located below it. Therefore, the operating status of the intelligent screen can be monitored in real time via optical fiber signals, enabling timely handling after the intelligent screen is damaged. This effectively avoids a series of negative impacts caused by the abnormal passage of unqualified material, thus improving overall production efficiency and quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the intelligent screen structure viewed from below;

[0019] Figure 2 This is a schematic diagram of the left-hand structure of the intelligent screen;

[0020] Figure 3 This is a front view structural diagram of the intelligent screen.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Screen body; 12. Lower surface; 13. Screen hole; 2. Cutting line; 21. First fixing device; 211. First fixing piece; 212. First U-shaped piece; 3. Optical fiber; 31. Second fixing device; 311. Second fixing piece; 312. Second U-shaped piece. Detailed Implementation

[0023] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0024] These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0025] It should be noted that, in the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this invention. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Furthermore, the terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible range of error. "Parallel" is not strictly parallel, but within the permissible range of error. Terms such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0027] It should also be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0028] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0030] like Figures 1-3 As shown, the present invention discloses an intelligent screen, which includes a screen body 1, a cutting line 2, and an optical fiber 3 capable of transmitting light to a detection device, arranged sequentially along the material movement direction. The screen body 1 is provided with a plurality of screen holes 13. The cutting line 2 and the optical fiber 3 are staggered from the screen holes 13 along the material movement direction to avoid material passing through the screen holes 13. When the screen body 1 is damaged, the cutting line 2 can cut the optical fiber 3 under the impact of the material passing through the damaged area.

[0031] Specifically, the intelligent screen of the present invention will be described using vertical feeding as an example. When the screen body 1 is intact, the intelligent screen normally screens materials. At this time, the materials fall vertically to the upper surface of the screen body 1 under the action of gravity and are screened on the upper surface. Materials that meet the specifications will pass through the screen holes 13 and continue to fall vertically. Since the cutting line 2 is located below the area around the screen holes, the materials will not come into contact with the cutting line 2 located on the discharge side of the screen body 1 as they continue to move downward. However, when the screen body 1 is damaged, some materials will fall from around the screen holes 13 at the damaged area and enter the discharge side of the screen body 1. This part of the material will touch and impact the cutting line 2 located below the damaged area. Subsequently, the part of the cutting line 2 that is impacted by the material will deform, and at the same time, the two ends of the cutting line 2 will shift in opposite directions, eventually breaking away from its original fixed state. Once detached from its fixed position, the cutting line 2 continues to move downwards under the combined force of the material impact and its own gravity. Upon contacting the lower optical fiber 3, it cuts it until the fiber 3 breaks. The broken optical fiber 3 will be unable to transmit light to the detection device. Therefore, if the detection device does not detect the light source, it can be basically determined that the main body 1 of the intelligent screen has been damaged. This provides information to the operator to replace the main body 1 in a timely manner, avoiding various losses caused by delayed processing.

[0032] Optionally, the smart screen includes a first fixing device 21 for fixing the cutting line 2, the first fixing device 21 being disposed at the edge of the lower surface 12 of the screen body 1.

[0033] Specifically, the purpose of setting the first fixing device 21 on the lower surface 12 of the screen body 1 is to reduce external environmental interference, mainly to reduce the impact of the external environment on the stability of the cutting line 2. For example, when the first fixing device 21 is fixed to the external support, the part of the cutting line 2 located between the screen body 1 and the external support is a necessary part. Moreover, since this part is not blocked by the screen body 1 above, it is more likely to encounter situations such as accidental contact by the operator, thereby causing external impact and reducing the overall stability of the cutting line 2. Secondly, it is also necessary to ensure the stability of the external support. In comparison, setting the first fixing device 21 on the lower surface 12 of the screen body 1 only requires ensuring that the screen body 1 and the first fixing device 21 themselves are sufficiently stable. Furthermore, based on the first fixing device 21 being set on the lower surface 12 of the screen body 1, as long as the first fixing device 21 is used to fix both ends of the cutting line 2, it can be ensured that the cutting line 2 is completely covered by the screen body 1 in the vertically downward direction, thereby reducing the necessary part of the cutting line 2 and reducing its possibility of interference, thus enhancing its stability. The edge setting is to ensure that the cutting line 2 can smoothly detach from the first fixing device 21 after being impacted by materials. At that time, the two ends of the cutting line 2 will be displaced in opposite directions under the action of force, and eventually detach from the first fixing device 21. Conversely, if the first fixing device 21 is set in the middle part of the lower surface 12 of the screen body 1, it is highly likely that the two ends of the cutting line 2 will need to be additionally fixed. In this case, there will be at least three fixing points. The premise for the cutting line 2 to detach and be fixed is that the distance between the two ends of the cutting line 2 is less than the distance between two fixing points. This means that the smaller the distance between the two fixing points closest to the damaged part of the screen body 1, the farther the two ends of the cutting line 2 need to be displaced to achieve the final detachment, which directly increases the difficulty of detachment. If the first fixing device 21 is located in the middle of the lower surface 12 of the screen body 1 and is used to fix both ends of the cutting line 2, the length of the cutting line 2 will inevitably be too short and mismatched with the screen body 1. This is especially evident when the damaged part of the screen body 1 is located at the edge of the screen body 1. Material that passes abnormally through the damaged part cannot contact and impact the cutting line 2, causing the cutting line 2 to fail to perform its function and achieve its purpose. In summary, it is preferable to set the first fixing device 21 on the lower surface 12 of the screen body 1. On this basis, it is necessary to set it at the edge of the lower surface 12. In addition, if the cost is controllable, in order to enable the cutting line 2 to respond faster and cut the optical fiber 3 more efficiently when impacted by material, a telescopic drive can be further set between the lower surface 12 of the screen body 1 and the first fixing device 21, and a pressure sensor electrically connected to the telescopic drive can be set on the first fixing device 21.In this situation, the cutting wire 2 does not need to detach from the first fixing device 21 when it is impacted by the material. Instead, it moves directly downward under the action of the telescopic drive and cuts the optical fiber 3 after contacting it.

[0034] Optionally, the first fixing device 21 includes a first fixing member 211 and a first U-shaped member 212. There are two first fixing members 211, which are radially distributed along the cutting line 2 and fixed to the lower surface 12. The two ends of the first U-shaped member 212 are respectively connected to the ends of the two first fixing members 211 that are away from the lower surface 12.

[0035] Specifically, such as Figure 2 As shown, the first fixing member 211 is used to restrict the radial movement of the cutting line 2; the first U-shaped member 212 is used to support the cutting line 2 and restrict its vertical displacement. Under the combined action of the first fixing member 211 and the first U-shaped member 212, the only possible movement of the two ends of the cutting line 2 is along its axial direction. This ensures that the cutting line 2 has sufficient stability when the intelligent screen is screening materials normally, and also ensures that after being impacted by materials, the two ends of the cutting line 2 can move accordingly toward the impact position and eventually separate from the first fixing member 211 and the first U-shaped member 212.

[0036] Optionally, the first fastener 211 and the first U-shaped member 212 are threaded together. Specifically, the threaded connection facilitates the installation or removal of the cutting wire 2. Of course, other detachable connection methods, such as snap-fit ​​connections or magnetic adsorption connections, can also be selected according to actual needs.

[0037] Optionally, the intelligent screen includes a second fixing device 31 for fixing the optical fiber 3, which is disposed at the edge of the lower surface 12 of the screen body 1. The specific arrangement of the second fixing device 31 is basically the same as that of the first fixing device 21, and will not be described again here. It is worth noting that since the two ends of the optical fiber 3 are connected to the light source and the detection device respectively, the second fixing device 31 cannot be used to fix the two ends of the optical fiber 3, and the purpose of the second fixing device 31 is only to enhance the stability of the optical fiber 3, especially the stability of the portion of the optical fiber 3 located directly below the screen body 1.

[0038] Optionally, the second fixing device 31 includes two second fixing members 311 and a second U-shaped member 312. The two second fixing members 311 are radially distributed along the optical fiber 3 and fixed on the edge of the lower surface 12. The two ends of the second U-shaped member 312 are respectively connected to the ends of the two second fixing members 311 away from the lower surface 12. The height of the second fixing member 311 is greater than the height of the first fixing member 211, and the height difference is greater than or equal to the diameter of the cutting line 2. Specifically, as shown... Figure 3As shown, the second fixing member 311 is used to restrict the movement of the optical fiber 3 along its radial direction; the second U-shaped member 312 is used to support the optical fiber 3 and restrict the displacement of the optical fiber 3 in the vertical direction. When the cutting line 2 acts on the optical fiber 3, since the two ends of the optical fiber 3 are not free ends, the optical fiber 3 will continue to remain relatively stable until it is cut by the cutting line 2.

[0039] Optionally, multiple cutting lines 2 are provided. Specifically, multiple cutting lines 2 are evenly distributed below the screen body 1 to avoid the screen being undetected when the screen body 1 is damaged and material passes abnormally along the damaged area, because there are no cutting lines 2 directly below the damaged area.

[0040] Optionally, multiple optical fibers 3 are provided. Specifically, providing multiple optical fibers 3 facilitates more accurate determination of the damaged location of the screen body 1 by detecting the signal interruption location of the optical fiber 3.

[0041] Optionally, the screen body 1 is square, and multiple screen holes 13 form a rectangular array. Specifically, as shown... Figure 1 As shown, the square screen body 1 is chosen primarily to allow for a rectangular array of screen holes 13. This rectangular array of screen holes 13 provides a defined row and column spacing, ensuring that the cutting lines 2 and optical fibers 3 are offset from the screen holes 13 along the material movement direction to avoid material passing through them. Taking the distribution of the cutting lines 2 as an example, the cutting lines 2 can extend horizontally along the row or column spacing of the rectangular array, thus offsetting the screen holes 13. Furthermore, when multiple cutting lines 2 are set, the fixed row and column spacing ensures that the multiple cutting lines 2 are parallel and equally spaced. The same applies to the setting of multiple optical fibers 3, thereby achieving a uniform distribution of multiple cutting lines 2 and multiple optical fibers 3 directly below the screen body 1.

[0042] Optionally, the extension direction of the optical fiber 3 is perpendicular to the extension direction of the cutting line 2. Specifically, ensuring that the extension direction of the optical fiber 3 is perpendicular to the extension direction of the cutting line 2 ensures that when the cutting line 2 acts on the optical fiber 3, the cutting is perpendicular. Perpendicular cutting provides a faster cutting speed than oblique cutting, specifically because: firstly, during perpendicular cutting, the cutting force acts directly on the cutting surface, resulting in higher force transmission efficiency; while during oblique cutting, some force is dispersed to non-cutting directions, leading to reduced cutting efficiency. Secondly, the path of perpendicular cutting is shorter; while oblique cutting may require a longer path, increasing cutting time. Furthermore, the extension direction of the optical fiber 3 being perpendicular to the extension direction of the cutting line 2 allows for better matching of the rectangular array of screen holes 13.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. For example, during horizontal feeding, the intelligent screen is vertically arranged as a whole, and the material moves horizontally under negative pressure and is screened by the intelligent screen. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and all fall within the protection scope of the present invention.

Claims

1. A smart screen, characterized in that, The device includes a screen body (1), a cutting line (2), and an optical fiber (3) that can transmit light to a detection device, arranged sequentially along the material movement direction. The screen body (1) is provided with a plurality of screen holes (13). The cutting line (2) and the optical fiber (3) are staggered from the screen holes (13) along the material movement direction to avoid material passing through the screen holes (13). When the screen body (1) is damaged, the cutting line (2) can cut the optical fiber (3) under the impact of the material passing through the damaged area.

2. The intelligent screen of claim 1, wherein, The intelligent screen includes a first fixing device (21) for fixing the cutting line (2), the first fixing device (21) being disposed at the edge of the lower surface (12) of the screen body (1).

3. The intelligent screen of claim 2, wherein, The first fixing device (21) includes a first fixing member (211) and a first U-shaped member (212). There are two first fixing members (211), which are radially distributed along the cutting line (2) and fixed to the lower surface (12). The two ends of the first U-shaped member (212) are respectively connected to the ends of the two first fixing members (211) away from the lower surface (12).

4. The intelligent screen of claim 3, wherein, The first fastener (211) and the first U-shaped member (212) are threaded together.

5. The intelligent screen of claim 3, wherein, The intelligent screen includes a second fixing device (31) for fixing the optical fiber (3), and the second fixing device (31) is disposed at the edge of the lower surface (12) of the screen body (1).

6. The intelligent screen of claim 5, wherein, The second fixing device (31) includes two second fixing members (311) and a second U-shaped member (312). The two second fixing members (311) are radially distributed along the optical fiber (3) and fixed on the edge of the lower surface (12). The two ends of the second U-shaped member (312) are respectively connected to the ends of the two second fixing members (311) away from the lower surface (12). The height of the second fixing member (311) is greater than the height of the first fixing member (211) and the height difference is greater than or equal to the diameter of the cutting line (2).

7. The intelligent screen of claim 1, wherein, The cutting lines (2) are provided in multiple ways.

8. The intelligent screen of claim 1, wherein, Multiple optical fibers (3) are provided.

9. The intelligent screen of claim 1, wherein, The screen body (1) is square, and the multiple screen holes (13) form a rectangular array.

10. The intelligent screen according to claim 1 or 9, characterized in that, The extension direction of the optical fiber (3) is perpendicular to the extension direction of the cutting line (2).

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