Bamboo stick double-end synchronous sharpening process

Abstract

The invention provides a bamboo stick double-end synchronous sharpening process, and relates to the technical field of bamboo product processing, the core of the bamboo stick double-end synchronous sharpening process is that a traditional blade cutting mode is replaced by a grinding sharpening mode, and the specific technical scheme is as follows: an abrasive belt and an elastic belt are arranged, and an acute-angle crack is formed under the action of a roller; and the end part of the bamboo stick is polished into a spine shape when passing through the crack. Economical and practical grinding materials are used, so that the production cost is reduced; chippings generated by grinding are fine, so that the production safety is improved, and the requirement on air draft equipment is low; the tip size can be changed by adjusting the position of the roller, operation is easy and convenient, and adaptability is high; and the ground bamboo stick is smooth and attractive in surface. The invention aims to reduce the production cost, improve the safety, simplify the operation process, enhance the production flexibility and improve the aesthetic property of the product.

Description

Technical Field

[0001] The invention relates to the technical field of bamboo product processing, in particular to a process for synchronously sharpening double ends of bamboo skewers. Background Art

[0002] Traditional bamboo skewer sharpening often relies on blade cutting, which has numerous drawbacks. First, blades are expensive and replacement costs are high, increasing production costs. Second, blade cutting produces large debris particles that can easily cause safety hazards when splashed, and requires high ventilation equipment, which can easily cause equipment to jam or burn out. Third, the blade replacement and adjustment process is highly dangerous and requires high operator skills. Furthermore, when producing pointed bamboo skewers of varying specifications and models, blade angle adjustment requires high precision, a high degree of specialization, and complex operation. Finally, blade cutting can leave noticeable cutting marks or traces on the surface of the bamboo skewers, affecting the product's aesthetics. Summary of the Invention

[0003] In response to the above problems, the present invention proposes a double-end synchronous sharpening process for bamboo skewers, which uses grinding and sharpening to replace traditional blade cutting, aiming to reduce production costs, improve safety, simplify the operation process, enhance production flexibility and improve the aesthetics of the product.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A double-headed synchronous sharpening process for bamboo skewers, comprising: The feeding conveyor belt, the processing conveyor belt and the discharging conveyor belt are arranged in sequence; The processing conveyor belt is divided into a front section, a middle section and a rear section, and is arched as a whole, wherein the middle section bulges upward and is horizontal; A plurality of convex teeth are evenly and equidistantly arranged on the processing conveyor belt; Abrasive belts are provided on both sides of the processing conveyor belt. The abrasive belts are rotating belts, the top surface of which is flush with the height of the middle section. A circle of elastic belt is provided on the abrasive surface of the abrasive belt. The elastic belt protrudes outward and rotates with the abrasive belt. A roller is suspended by a hanger above the top surface of the abrasive belt and on the side of the elastic belt away from the processing conveyor belt. The roller always squeezes the elastic belt that rotates to the top surface until it deforms and bulges toward the middle section of the processing conveyor belt. The deformed and bulged part of the elastic belt forms an acute-angle gap with the top surface of the abrasive belt.

[0005] In some embodiments, the protruding teeth are long prisms with a trapezoidal cross-section, and the gaps between adjacent protruding teeth for accommodating bamboo sticks are bucket-shaped spaces that are wide at the top and narrow at the bottom.

[0006] In some embodiments, a receiving shovel is provided at both the left and right ends of the bamboo skewers entering the discharge conveyor belt. Both receiving shovels are in the shape of inclined plates and extend to both sides of the rear section of the processing conveyor belt respectively.

[0007] In some embodiments, the elastic belt is a multi-layer composite structure, including a base layer, an elastic layer, and a wear-resistant layer.

[0008] In some embodiments, a pressing wheel is hung above the middle section of the processing conveyor belt, and the pressing wheel is kept in rolling contact with the bamboo sticks being sharpened.

[0009] In some embodiments, before the bamboo skewers enter the feed conveyor, the step of pre-treating the bamboo skewers is further included, and the pre-treating step specifically includes: a) Cleaning bamboo skewers: Use cleaning equipment to clean the bamboo skewers; b) Drying of bamboo sticks: The cleaned bamboo sticks are dried through drying equipment; c) Bamboo stick screening: screening the dried bamboo sticks; d) Trimming of bamboo stick ends: trimming the ends of the screened bamboo sticks.

[0010] In some embodiments, the process of simultaneously sharpening the double ends of the bamboo skewers further includes a step of processing the debris generated by the grinding, and the processing step specifically includes: a) Debris collection: Debris collection devices are installed on both sides and below the processing conveyor belt; b) Debris filtration: The collected debris is filtered through a filtration device to separate debris particles of different sizes; c) Debris recovery or treatment: Recyclable debris is reprocessed or used as biomass fuel, and small debris that cannot be recycled is treated harmlessly through environmentally friendly treatment methods; d) Regular cleaning: Clean and maintain the debris collection device and filter device regularly.

[0011] The double-ended simultaneous sharpening process of the bamboo skewers of the present invention adopts a unique grinding and sharpening method, which shows many significant benefits compared with the traditional blade cutting method: The present invention not only reduces production costs, because the abrasive belt and elastic belt are economical and have low replacement costs, but also reduces the requirements for exhaust equipment; it also improves safety, avoids risks during blade replacement and adjustment, and the debris particles generated by grinding are small, and the risk factor when splashing is small. In addition, the operation process is simplified, and the opening and closing degree of the sharp-angled gap can be adjusted by simply translating the roller, which can meet the production needs of pointed bamboo sticks of different specifications and models, thereby enhancing production flexibility. The aesthetics of the product is also improved, and the grinding method will not leave marks on the surface of the bamboo sticks, making the product smoother and more beautiful. At the same time, the stability and durability of the equipment are improved, and the small debris particles reduce the wear on the exhaust equipment, extending the service life of the equipment, and avoiding the vibration and impact that may be generated by the blade cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the overall structure of the equipment used in the process of the present invention; Figure 2 A schematic diagram of the internal structure of the equipment used in the process of the present invention; Figure 3 A detailed structural diagram of the processing conveyor belt in the process of the present invention; Figure 4 Detailed structural diagram of the discharge conveyor belt in the process of the present invention; Figure 5 Detailed diagram of the structure of the abrasive belt in the process of the present invention.

[0013] In the figure: 100, bamboo sticks; 1, feeding conveyor belt; 2, processing conveyor belt; 201, convex teeth; 3, discharging conveyor belt; 301, receiving shovel; 4, abrasive belt; 401, elastic belt; 402, roller; 403, hanging rod; 5, pressing wheel. DETAILED DESCRIPTION

[0014] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0015] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are 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 therefore cannot be understood as limiting the present invention.

[0016] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0017] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0018] See also Figure 1-5 This embodiment provides a double-end synchronous sharpening process for bamboo skewers, comprising sequentially arranging a feeding conveyor belt 1, a processing conveyor belt 2, and a discharging conveyor belt 3 on a processing route of the bamboo skewers 100, and enabling the bamboo skewers 100 to be sequentially conveyed on the feeding conveyor belt 1, the processing conveyor belt 2, and the discharging conveyor belt 3; The processing conveyor belt 2 is divided into a front section, a middle section and a rear section, and is arched as a whole. The front section and the rear section are both sloped and connected to the feed conveyor belt 1 and the discharge conveyor belt 3 respectively, while the middle section is raised upward and horizontal. In order to ensure that the bamboo sticks 100 on the processing conveyor belt 2 can be evenly and stably arranged at equal distances, a plurality of convex teeth 201 are evenly and evenly arranged on the processing conveyor belt 2 so that a single bamboo stick 100 can be clamped by adjacent convex teeth 201; An abrasive belt 4 is provided on both sides of the processing conveyor belt 2. The abrasive belt 4 is a rotating belt, the top surface of which is flush with the height of the middle section. A loop of elastic belt 401 is provided on the abrasive surface of the abrasive belt 4. The elastic belt 401 protrudes outward and rotates with the abrasive belt 4. A roller 402 is suspended on the top surface of the abrasive belt 4 on the side of the elastic belt 401 away from the processing conveyor belt 2 through a hanger 403. The roller 402 always squeezes the elastic belt 401 that rotates to the top surface until it is deformed and bulged in the direction of the middle section of the processing conveyor belt 2. During this period, the roller 402 and the elastic belt 401 always maintain rolling contact. The deformed and bulged part of the elastic belt 401 forms an acute-angled gap with the top surface of the abrasive belt 4. When the end of the bamboo stick 100 is transmitted through the acute-angled gap, the end of the bamboo stick 100 will be polished into a sharp shape, and the two ends are carried out synchronously to achieve double-headed synchronous sharpening of the bamboo stick 100. The present invention uses the acute-angled gap formed by the abrasive belt 4 and the elastic belt 401 to polish and sharpen the end of the bamboo stick 100, replacing traditional blade cutting. This polishing method reduces production costs because the abrasive belt 4 is cheaper than the blade and has lower replacement costs. At the same time, the debris generated by grinding is small, with low risk of splashing, and the requirements for exhaust cleaning equipment are also low, reducing the risk of equipment failure; And since only the part of the elastic belt 401 squeezed by the roller 402 is deformed and bulged, the non-deformed bulged part of the elastic belt 401 will be farther away from the processing conveyor belt 2 than its deformed bulged part. That is to say, on the transmission route of the bamboo sticks 100, the distance between the two elastic belts 401 is first wide, then narrowed, and then widened again. In this way, a wider feeding and discharging channel is achieved, which is conducive to the smoothness of the feeding and discharging of the bamboo sticks 100. The entire feeding and discharging process will not be blocked by the elastic belt 401. After both ends of the bamboo sticks 100 are sharpened, they will be transmitted to the discharging conveyor belt 3, thereby completing the entire double-head sharpening process.

[0019] The present invention is provided with an abrasive belt 4 on both sides of a processing conveyor belt 2. A loop of elastic belt 401 is provided on the abrasive belt 4. The elastic belt 401 rotates together with the abrasive belt 4 and forms a deformation ridge under the action of roller 402, forming an acute angle gap with the top surface of the abrasive belt 4. This design makes the grinding process more flexible and adaptable. By adjusting the degree of extrusion of the elastic belt 401 by the roller 402, the opening and closing degree of the acute angle gap can be easily adjusted, thereby producing pointed bamboo sticks 100 of different specifications and models, thereby enhancing the flexibility of production. Moreover, the roller 402 is hung above the top surface of the abrasive belt 4 by a suspension rod 403. The degree of extrusion of the elastic belt 401 can be adjusted by translating the position of the roller 402. This adjustment mechanism is simple and easy to operate, does not require professional operation, and reduces operational difficulty and danger. Simultaneously, the adjustment range of the roller 402 is large, which can meet the production needs of pointed bamboo sticks 100 of different specifications and models. Furthermore, the fine particles produced by the polishing process are easily sucked away by the exhaust cleaning equipment, reducing the risk of equipment jamming or burning due to overly large particles. This improves the continuity and stability of the production process and reduces downtime due to equipment failure. Furthermore, the sharpening method used in the polishing process does not leave obvious cutting marks or traces on the surface of the bamboo skewers 100, thereby improving the aesthetics of the bamboo skewers 100.

[0020] In the dual-end synchronous sharpening process for bamboo sticks, bamboo sticks 100 first enter the processing area via the feed conveyor 1. Equally spaced, evenly spaced teeth 201 on the processing conveyor 2 securely hold the bamboo sticks 100, ensuring they remain in position during processing. The bamboo sticks 100 then enter the middle section of the processing conveyor 2, the sharpening area. Here, the abrasive belts 4 on either side begin to rotate. The elastic belts 401 on these belts, driven by rollers 402, deform and bulge, forming an acute-angled gap with the top surface of the abrasive belts 4. As the ends of the bamboo sticks 100 pass through this acute-angled gap, they are subjected to the grinding action of the abrasive, gradually being polished into a spike-like shape. By adjusting the degree of compression of the elastic belts 401 by the rollers 402, the opening and closing of the acute-angled gap can be adjusted, thereby producing different specifications and models of pointed bamboo sticks 100. Finally, the sharpened bamboo sticks 100 leave the processing area via the discharge conveyor 3, completing the dual-end sharpening process. During the entire process, the debris generated by grinding is small and can be easily sucked away by the exhaust equipment, ensuring the continuity and stability of the production process.

[0021] In some embodiments, as Figure 3As shown, the protruding teeth 201 are elongated prisms with a trapezoidal cross-section. The gaps between adjacent protruding teeth 201 for accommodating the bamboo sticks 100 are bucket-shaped spaces that are wide at the top and narrow at the bottom. The trapezoidal cross-sectional design provides the protruding teeth 201 with better stability and support on the processing conveyor belt 2. When the bamboo sticks 100 are clamped by adjacent protruding teeth 201, the trapezoidal structure of the protruding teeth 201 can effectively prevent the bamboo sticks 100 from slipping or rolling during transportation, ensuring the stable position of the bamboo sticks 100 during processing. The bucket-shaped space also makes it easier to align the bamboo sticks 100 when they are inserted. Once inserted, due to the wide-at-top and narrow-at-bottom nature of the space, the bamboo sticks 100 will experience a certain self-locking effect, further enhancing the stability of the clamping. In addition, the trapezoidal protruding teeth 201 and the bucket-shaped gap design have a certain range of elastic adaptability. This design can accommodate and stably clamp bamboo sticks 100 with slightly different diameters, eliminating the need for frequent adjustments to the equipment, thereby improving the versatility and flexibility of the equipment.

[0022] In some embodiments, as Figure 4 As shown, the left and right ends of the bamboo sticks 100 entering the discharge conveyor belt 3 are each provided with a receiving shovel 301. Both receiving shovels 301 are in the shape of an inclined plate and extend to both sides of the rear section of the processing conveyor belt 2. The inclined plate design of the receiving shovel 301 enables it to smoothly catch the bamboo sticks 100 that slide off the rear section of the processing conveyor belt 2. The inclination angle of the inclined plate matches the sliding trajectory of the bamboo sticks 100, reducing the resistance and jumping of the bamboo sticks 100 during the transition process, ensuring that the bamboo sticks 100 can smoothly and accurately enter the discharge conveyor belt 3. In addition, the extended design of the receiving shovel 301 effectively covers the gap between the rear section of the processing conveyor belt 2 and the discharge conveyor belt 3, preventing the bamboo sticks 100 from scattering or getting stuck due to the gap during the transition process. This design is particularly suitable for high-speed production and can ensure the continuity and stability of production.

[0023] In some embodiments, the elastic belt 401 is a multi-layer composite structure, including a base material layer, an elastic layer and a wear-resistant layer. The base material layer is a high-strength fiber woven layer, such as a Kevlar fiber or a nylon fiber woven layer, which provides the basic structure and strength of the elastic belt 401. The elastic layer is an elastic rubber or elastic polyurethane material layer, which is arranged on the outside of the base material layer. These materials have good elasticity and deformation recovery capabilities, so that the elastic belt 401 can quickly deform and bulge when squeezed by the roller 402 to form an acute-angled gap, and quickly return to its original shape after the pressure of the roller 402 is released, ensuring the stability and consistency of the grinding process, so that the elastic belt 401 has good elasticity and deformation recovery capabilities. The wear-resistant layer is a wear-resistant rubber or wear-resistant plastic material layer, which covers the outer surface of the elastic layer to enhance the wear resistance and service life of the elastic belt 401.

[0024] In some embodiments, as Figure 2As shown, a pressure wheel 5 is suspended above the middle section of the processing conveyor belt 2, and the pressure wheel 5 is kept in rolling contact with the bamboo stick 100 being sharpened. This effectively stabilizes the position of the bamboo stick 100 during the sharpening process. Since the bamboo stick 100 may undergo slight displacement during the transmission process due to various factors (such as vibration of the conveyor belt, the effect of grinding force, etc.), the presence of the pressure wheel 5 can suppress this displacement, ensuring that the bamboo stick 100 can be accurately polished through the sharp-angled gap, thereby improving the precision and consistency of the polishing. In addition, the rolling contact between the pressure wheel 5 and the bamboo stick 100 can also play a role in controlling the polishing force. By adjusting the pressure of the pressure wheel 5 on the bamboo stick 100, the grinding force applied to the bamboo stick 100 during the grinding process can be adjusted, thereby controlling the degree of sharpness and shape of the end of the bamboo stick 100. This adjustable polishing force makes the production process more flexible and can meet the production needs of pointed bamboo sticks 100 of different specifications and models.

[0025] In some embodiments, before the bamboo skewers 100 enter the feed conveyor belt 1, a step of pre-treating the bamboo skewers 100 is further included. The pre-treating step specifically includes: a) Cleaning the bamboo skewers 100: Use a cleaning device to thoroughly clean the bamboo skewers 100 to remove dust, oil, and other impurities on the surface of the bamboo skewers 100, ensuring the cleanliness of the surface of the bamboo skewers 100 and providing a good foundation for the subsequent sharpening process; b) Drying the bamboo skewers 100: The cleaned bamboo skewers 100 are quickly dried by a drying device to prevent residual moisture on the surface of the bamboo skewers 100 from affecting the sharpening effect, and to prevent the bamboo skewers 100 from sticking or sliding during transportation due to moisture; c) Screening of bamboo skewers 100: Screening the dried bamboo skewers 100 to remove those with cracks, bends, or unsatisfactory diameters, ensuring that all bamboo skewers 100 entering the processing conveyor belt 2 are qualified products, thereby improving the qualified rate and consistency of the final product; d) Trimming the ends of the bamboo skewers 100: The ends of the screened bamboo skewers 100 are slightly trimmed to remove any burrs or uneven parts that may exist on the ends, so that the ends of the bamboo skewers 100 are smoother and flatter, which is beneficial for subsequent sharpening processing and improves the sharpening efficiency and effect.

[0026] By pre-treating the bamboo skewers 100, the production efficiency, product quality and sharpening effect of the double-end synchronous sharpening process of the bamboo skewers can be significantly improved, while the equipment failure rate can be reduced.

[0027] In some embodiments, the process of simultaneously sharpening the double ends of the bamboo skewers further includes a step of processing the debris generated by the grinding, and the processing step specifically includes: a) Chip collection: Chip collection devices, such as chip collection troughs or vacuum cleaner suction ports, are provided on both sides and below the processing conveyor belt 2 to collect chips generated during the grinding process in real time to ensure cleanliness in the processing area; b) Debris filtration: The collected debris is filtered through a filtration device to separate debris particles of different sizes for subsequent processing and recycling; c) Debris recovery or treatment: Recyclable debris, such as larger wood particles, can be reprocessed or used as biomass fuel. Small debris that cannot be recycled will be disposed of harmlessly through environmentally friendly treatment methods, such as incineration or landfill, to ensure compliance with environmental protection requirements. d) Regular cleaning: Clean and maintain the debris collection device and filter device regularly to prevent debris accumulation from causing equipment failure or affecting processing efficiency.

[0028] By processing the debris generated by grinding, not only the cleanliness of the processing area and the safety of the working environment are improved, but also the resource utilization and environmental protection of the debris are realized, while the equipment failure rate and maintenance costs are reduced.

[0029] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A double-ended synchronous sharpening process for bamboo skewers, characterized in that: include: A feeding conveyor belt (1), a processing conveyor belt (2) and a discharging conveyor belt (3) are sequentially arranged; The processing conveyor belt (2) is divided into a front section, a middle section and a rear section, and is arched as a whole, wherein the middle section bulges upward and is horizontal; A plurality of convex teeth (201) are evenly and equidistantly arranged on the processing conveyor belt (2); An abrasive belt (4) is provided on both sides of the processing conveyor belt (2), the abrasive belt (4) being a rotating belt, the top surface of which is flush with the height of the middle section, and a circle of elastic belt (401) is provided on the abrasive surface of the abrasive belt (4), the elastic belt (401) protruding outward and rotating together with the abrasive belt (4); A roller (402) is suspended via a suspension rod (403) on the side of the elastic belt (401) away from the processing conveyor belt (2) above the top surface of the abrasive belt (4). The roller (402) always squeezes the elastic belt (401) rotated to the top surface until the elastic belt (401) is deformed and bulged in a direction toward the middle section of the processing conveyor belt (2). The deformed and bulged portion of the elastic belt (401) forms an acute-angled gap with the top surface of the abrasive belt (4).

2. The process for synchronously sharpening double ends of bamboo skewers according to claim 1, characterized in that: The convex teeth (201) are long prisms with a trapezoidal cross section, and the gaps between adjacent convex teeth (201) for accommodating bamboo sticks (100) are bucket-shaped spaces that are wide at the top and narrow at the bottom.

3. The process for synchronously sharpening double ends of bamboo skewers according to claim 1, characterized in that: The left and right ends of the bamboo skewers (100) entering the discharging conveyor belt (3) are both provided with a receiving shovel (301), and the two receiving shovels (301) are both in the shape of an inclined plate and extend to both sides of the rear section of the processing conveyor belt (2).

4. The process for synchronously sharpening double ends of bamboo skewers according to claim 1, characterized in that: The elastic belt (401) is a multi-layer composite structure, comprising a base material layer, an elastic layer, and a wear-resistant layer.

5. The process for synchronously sharpening double ends of bamboo skewers according to claim 1, characterized in that: A pressing wheel (5) is hung above the middle section of the processing conveyor belt (2), and the pressing wheel (5) is kept in rolling contact with the bamboo stick (100) being sharpened.

6. The process for synchronously sharpening double ends of bamboo skewers according to claim 1, characterized in that: Before the bamboo skewers (100) enter the feed conveyor belt (1), the process further includes a step of pre-treating the bamboo skewers (100), wherein the pre-treating step specifically includes: a) Cleaning the bamboo skewers (100): Cleaning the bamboo skewers (100) using a cleaning device; b) Drying the bamboo skewers (100): The cleaned bamboo skewers (100) are dried by a drying device; c) screening of bamboo sticks (100): screening the dried bamboo sticks (100); d) trimming the ends of the bamboo sticks (100): trimming the ends of the screened bamboo sticks (100).

7. The process for synchronously sharpening double ends of bamboo skewers according to claim 1, characterized in that: The process of synchronously sharpening the double ends of the bamboo skewers also includes a step of processing the debris generated by grinding, and the processing step specifically includes: a) Debris collection: Debris collection devices are provided on both sides and below the processing conveyor belt (2); b) Debris filtration: The collected debris is filtered through a filtration device to separate debris particles of different sizes; c) Debris recovery or treatment: Recyclable debris is reprocessed or used as biomass fuel, and small debris that cannot be recycled is treated harmlessly through environmentally friendly treatment methods; d) Regular cleaning: Clean and maintain the debris collection device and filter device regularly.

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