A waste collecting and guiding mechanism for precise cutting of a workpiece

Abstract

The utility model provides a kind of waste collection and guide mechanism of workpiece precision cutting belongs to guide mechanism technical field, the waste collection and guide mechanism of workpiece precision cutting includes guide shell, collection chamber and waste guide plate;Guide shell is inverted trapezoidal cylindrical structure, the upper end opening width of guide shell is greater than the lower end opening width, the inner wall surface of guide shell is inclined to be arranged, collection chamber is fixedly connected at the lower end opening of guide shell, collection chamber and guide shell form the waste channel of intercommunication, waste guide plate is arranged on the inner wall surface of guide shell, one end of waste guide plate is fixedly connected on the inner wall surface of guide shell by welding mode, the other end of waste guide plate is free end and extends to the direction of collection chamber, acute angle is formed between waste guide plate and the inner wall surface of guide shell, the surface of waste guide plate is smooth curved surface, solve the problem that workpiece precision cutting process waste is easy to splash, accumulation, lead to influence production efficiency and stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of flow guiding mechanisms, specifically, it relates to a waste collection and flow guiding mechanism for precise workpiece cutting. Background Technology

[0002] In modern machining, precise workpiece cutting is a fundamental and crucial process, widely applied in various production scenarios such as metal processing, sheet metal cutting, and pipe processing. During the cutting process, regardless of whether laser cutting, plasma cutting, flame cutting, or mechanical cutting methods are used, a large amount of waste is generated. This waste includes cut-off scraps, metal shavings, powder, and a mixture of waste and cutting fluid. If this waste is not collected promptly and effectively, it will scatter around the cutting equipment, polluting the workshop environment, potentially posing safety hazards to operators, and wasting material resources. Currently, in actual production, there are two common waste collection methods. One is to simply place a collection box or hopper under the cutting table, relying on the free fall of waste for collection. However, this method lacks an effective flow guiding mechanism, causing waste to easily splash and scatter during its fall, resulting in low collection efficiency and frequent manual cleaning of the scattered waste. Another approach is to use a collection system with a vacuum device to collect waste through negative pressure suction. However, this system is complex, requires powerful fans and filters, resulting in high equipment costs and energy consumption. Furthermore, its suction effect is limited for larger or heavier waste, easily causing pipe blockage. To address these shortcomings of existing technologies, there is an urgent need to develop a waste collection and guiding mechanism that is simple in structure, low in cost, and highly efficient. This mechanism should effectively guide waste along a predetermined path into the collection container, preventing splashing and scattering, reducing manual cleaning workload, improving the production environment, and increasing resource utilization. Utility Model Content

[0003] In view of this, the present invention provides a waste collection and diversion mechanism for precise workpiece cutting, which solves the problem that waste is prone to splashing and accumulating during the precise workpiece cutting process, thus affecting production efficiency and stability.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a waste collection and guiding mechanism for precise workpiece cutting, used to collect and guide waste generated during cutting. It includes a guide shell, a collection chamber, and a waste guide plate. The guide shell has an inverted trapezoidal cylindrical structure, with the upper opening wider than the lower opening. The inner wall of the guide shell is inclined. The collection chamber is fixedly connected to the lower opening of the guide shell, forming a connected waste channel with the guide shell. The waste guide plate is disposed on the inner wall of the guide shell, with one end fixedly connected to the inner wall by welding, and the other end being a free end extending towards the collection chamber. An acute angle is formed between the waste guide plate and the inner wall of the guide shell, and the surface of the waste guide plate is a smooth curved surface.

[0006] The technical effects of the waste collection and guiding mechanism for precise workpiece cutting provided by this utility model are as follows: By setting an inverted trapezoidal cylindrical structure for the guiding shell, and utilizing the structural feature that the upper opening width is greater than the lower opening width, the cutting waste can slide naturally down the inclined inner wall under the action of gravity. With the guiding effect of the waste guide plate, the acute angle structure formed by the waste guide plate and the inner wall surface can effectively change the movement trajectory of the waste, preventing the waste from rebounding or accumulating during the fall. The smooth curved surface of the waste guide plate further reduces the resistance of the waste sliding down, ensuring that the waste can smoothly enter the collection chamber, realizing efficient collection and guiding of waste, and avoiding environmental pollution and cleaning difficulties caused by waste scattering.

[0007] Based on the above technical solution, the waste collection and guiding mechanism for precise workpiece cutting of this utility model can be further improved as follows:

[0008] The ratio of the width of the upper opening to the width of the lower opening of the flow guide housing is 2:1 to 3:1.

[0009] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by limiting the ratio of the width of the upper opening to the width of the lower opening of the flow guide shell, the flow guide shell can have a suitable tilt angle. When the ratio is 2:1 to 3:1, it can ensure a sufficiently large collection area to receive waste materials of various sizes generated during the cutting process, and can also form a suitable convergence effect, so that the waste materials gradually concentrate towards the center during the falling process, reducing the number of collisions between the waste materials and the shell wall, reducing the possibility of waste splashing, and improving the accuracy and concentration of waste material collection.

[0010] Furthermore, the included angle between the waste guide plate and the inner wall of the flow guide shell is 25° to 45°.

[0011] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By setting the included angle range between the waste guide plate and the inner wall of the guide shell, when the included angle is between 25 degrees and 45 degrees, a reasonable guiding angle can be provided for the falling waste. This angle will not cause the waste to stagnate and accumulate on the guide plate due to the angle being too small, nor will it lose its guiding function due to the angle being too large. This allows the waste to slide smoothly along the predetermined path after contacting the guide plate, effectively controlling the movement direction of the waste and ensuring that the waste can accurately enter the collection chamber, thereby improving the reliability and stability of waste collection.

[0012] Furthermore, the waste guide plate has an arc-shaped plate structure, and the radius of curvature of the waste guide plate gradually decreases along the direction of waste falling.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by designing the waste guide plate as an arc-shaped plate structure and gradually reducing its radius of curvature along the direction of waste falling, the guiding force on the waste as it slides on the surface of the guide plate is gradually enhanced, and the movement trajectory of the waste is more precisely controlled. The gradual change in radius of curvature design enables the waste to form a smooth transition movement on the guide plate, avoiding rebound or splashing caused by sudden changes in movement direction. At the same time, the arc-shaped structure increases the contact area between the guide plate and the waste, improves the stability of the guiding effect, and ensures that waste of various shapes and sizes can be effectively guided.

[0014] Furthermore, the inner wall surface of the flow guide shell is provided with multiple evenly distributed longitudinal flow guide ridges, which extend along the height direction of the flow guide shell and have a triangular cross-section.

[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By setting multiple evenly distributed longitudinal guide ridges on the inner wall of the guide shell, these guide ridges extend along the height direction to form multiple parallel guide channels. When the waste slides down the inner wall, the guide ridges can separate and restrict the movement path of the waste, preventing the waste from shifting laterally or colliding with each other during the fall. The triangular cross-sectional structure of the guide ridges has good guiding performance, which can quickly guide the waste that comes into contact with the guide ridges to the guide channels on both sides, so that the waste falls in an orderly manner along a fixed path, improving the neatness and efficiency of waste collection.

[0016] Furthermore, the collection chamber has a cylindrical structure, the bottom of the collection chamber is a closed structure, and a cleaning port is provided on the side wall of the collection chamber, which is closed by a cover plate.

[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by designing the collection chamber as a cylindrical structure and using a closed design at the bottom, the collection chamber has a good waste holding capacity. The cylindrical structure can evenly distribute the accumulation pressure of waste, avoiding structural deformation caused by local stress concentration. The cleaning port on the side wall, combined with the closed design of the cover plate, not only facilitates the regular cleaning and emptying of waste, but also maintains the airtightness of the collection chamber under normal working conditions, preventing waste from overflowing or flying from the cleaning port. At the same time, the cylindrical structure facilitates the natural accumulation and settling of waste, improving the utilization efficiency of the collection chamber.

[0018] Furthermore, the free end edge of the waste guide plate is serrated, with the tips of the serrations pointing towards the collection chamber.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by designing the free end edge of the waste guide plate as serrated and pointing the tooth tip towards the collection chamber, when the waste flows through the free end of the guide plate, the serrated edge can provide additional guidance for the waste. The tooth tip structure effectively breaks the surface tension that may be formed at the end of the guide plate, preventing the waste from adhering or accumulating at the free end, allowing the waste to smoothly detach from the guide plate and continue to fall into the collection chamber. The serrated multi-point contact method can also disperse the falling position of the waste, making the waste more evenly distributed in the collection chamber and avoiding local excessive accumulation.

[0020] Furthermore, an annular sealing boss is provided at the connection between the flow guide housing and the collection chamber. The annular sealing boss extends inward from the lower opening edge of the flow guide housing, and the inner diameter of the annular sealing boss matches the outer diameter of the collection chamber.

[0021] The beneficial effects of adopting the above-mentioned improved scheme are as follows: By setting an annular sealing boss at the connection between the guide shell and the collection chamber, the boss extends inward from the lower opening edge of the guide shell and matches the outer diameter of the collection chamber, forming a reliable sealing connection structure. The annular sealing boss can effectively prevent waste from leaking or getting stuck in the connection gap between the guide shell and the collection chamber, ensuring that all waste entering the guide shell can enter the collection chamber intact. At the same time, this matching structure also enhances the connection strength between the guide shell and the collection chamber, improves the structural stability and service life of the entire mechanism, and prevents waste collection failure caused by loose connection.

[0022] Furthermore, the flow guide shell is made of stainless steel sheet by stamping, and the wall thickness of the flow guide shell is uniformly distributed.

[0023] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By using stainless steel sheet to manufacture the flow guide shell and maintaining a uniform wall thickness distribution, the flow guide shell has excellent corrosion resistance and mechanical strength. The stainless steel material can effectively resist the erosion of cutting fluid, metal powder and other corrosive substances that may be contained in the cutting waste, thus extending the service life of the flow guide shell. The stamping process makes the surface of the flow guide shell smooth and flat, reducing the frictional resistance when the waste slides on the inner wall. The uniform wall thickness distribution ensures that the flow guide shell has stable mechanical properties when subjected to the impact of the waste, avoiding the generation of local weak points.

[0024] Furthermore, the surface of the waste guide plate is provided with an anti-stick coating, and the material of the anti-stick coating is polytetrafluoroethylene.

[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By setting a polytetrafluoroethylene (PTFE) anti-stick coating on the surface of the waste guide plate, the excellent low coefficient of friction and anti-adhesion properties of PTFE material make it so that the waste hardly adheres when sliding on the surface of the guide plate. In particular, for waste with oil or sticky cutting fluid, the anti-stick coating can effectively prevent the waste from accumulating and clumping on the surface of the guide plate, keeping the surface of the guide plate clean and smooth, ensuring that the waste can slide smoothly along the guide plate continuously, reducing the maintenance work required to clean the guide plate frequently due to waste adhesion, and improving the working efficiency and reliability of the entire waste collection and guiding mechanism.

[0026] Compared with existing technologies, the beneficial effects of the waste collection and guiding mechanism for precise workpiece cutting provided by this utility model are as follows: This utility model, by setting an inverted trapezoidal cylindrical guiding shell in conjunction with a waste guide plate and a collection chamber, forms a complete waste collection and guiding system, fundamentally solving the problems of incomplete waste collection and splashing in existing technologies. The inverted trapezoidal structure of the guiding shell utilizes gravity and structural convergence to allow waste to naturally concentrate downwards. The longitudinal guiding ridges on the inner wall further regulate the falling path of the waste, preventing lateral deviation. The arc-shaped curved surface design and gradually varying curvature radius structure of the waste guide plate ensure that the waste receives continuous and smooth guiding force during the guiding process, avoiding rebound caused by sudden changes in the direction of movement. The serrated edge at the free end effectively prevents the waste from adhering to the end of the guide plate. The cylindrical closed structure of the collection chamber provides ample storage space, and the design of the side wall cleaning port facilitates regular cleaning of the waste. The annular sealing boss between the guiding shell and the collection chamber ensures the sealing of the connection and prevents waste leakage. The use of stainless steel and an anti-stick coating gives the entire mechanism excellent corrosion resistance and anti-adhesion properties, significantly extending its service life and reducing maintenance frequency. The entire mechanism has a simple and compact structure, achieving efficient waste collection and diversion functions using only three main components: a flow guide shell, a collection chamber, and a waste guide plate. Compared with existing technologies, it significantly improves the integrity and reliability of waste collection, improves the cutting operation environment, reduces maintenance costs, and increases production efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 An example diagram of a waste collection and diversion mechanism for precise workpiece cutting;

[0029] Figure 2 A side view of a waste collection and diversion mechanism for precise workpiece cutting;

[0030] Figure 3 A perspective view of a waste collection and diversion mechanism for precise workpiece cutting;

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 10. Flow guide shell; 11. Longitudinal flow guide rib; 20. Collection chamber; 30. Waste guide plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] like Figures 1-3 The diagram shown is an example of a waste collection and guiding mechanism for precise workpiece cutting provided by this utility model. It is used to collect and guide waste generated during cutting, and includes a guide shell 10, a collection chamber 20, and a waste guide plate 30. The guide shell 10 has an inverted trapezoidal cylindrical structure, with the upper opening width greater than the lower opening width. The inner wall of the guide shell 10 is inclined. The collection chamber 20 is fixedly connected to the lower opening of the guide shell 10, forming a connected waste channel with the guide shell 10. The waste guide plate 30 is disposed on the inner wall of the guide shell 10. One end of the waste guide plate 30 is fixedly connected to the inner wall of the guide shell 10 by welding, while the other end is a free end extending towards the collection chamber 20. An acute angle is formed between the waste guide plate 30 and the inner wall of the guide shell 10, and the surface of the waste guide plate 30 is a smooth curved surface.

[0035] The specific operation or usage method is as follows: First, install the waste collection and guiding mechanism under the worktable of the cutting equipment, ensuring that the upper opening of the guiding shell faces the cutting area. This ensures that the waste generated during the cutting process can fall directly into the receiving range of the guiding shell. Secure the guiding shell to the support of the cutting equipment using bolts or welding to ensure the stability of the mechanism. Before starting the cutting operation, check if the collection chamber is empty. If there is residual waste in the collection chamber, open the cleaning port on the side wall, remove the cover plate, empty the waste from the collection chamber, and then reinstall the cover plate, ensuring a good seal. After the cutting operation begins, the waste generated falls into the upper opening of the guide shell under gravity. The waste first contacts the inclined inner wall of the guide shell and slides downward under the guidance of the inner wall. Simultaneously constrained by the longitudinal guide ridges, it falls along a fixed channel. When the waste reaches the waste guide plate, its direction of movement is further adjusted by the curved surface of the guide plate, allowing it to slide smoothly along the arc surface of the guide plate. After passing the serrated edge of the free end of the guide plate, the waste smoothly detaches from the guide plate and enters the collection chamber through the lower opening of the guide shell, where it accumulates. Throughout the entire process, no operator intervention is required; the waste collection process is entirely automated thanks to the mechanism's structural features. When the waste in the collection chamber accumulates to a certain amount, the cleaning port is opened periodically according to the production plan to empty the waste, and then the machine is reused. During routine maintenance, it is necessary to regularly check the condition of the anti-stick coating on the surface of the waste guide plate. If the coating is found to be worn, it should be recoated in time to maintain good anti-stick performance. At the same time, check the sealing condition at the connection between the guide shell and the collection chamber to ensure that the annular sealing boss fits tightly and there is no waste leakage.

[0036] In the above technical solution, the ratio of the width of the upper opening to the width of the lower opening of the flow guide housing 10 is 2:1 to 3:1.

[0037] Furthermore, in the above technical solution, the included angle between the waste guide plate 30 and the inner wall of the flow guide shell 10 is 25° to 45°.

[0038] Furthermore, in the above technical solution, the waste guide plate 30 has an arc-shaped plate structure, and the radius of curvature of the waste guide plate 30 gradually decreases along the direction of waste falling.

[0039] Furthermore, in the above technical solution, the inner wall surface of the flow guide shell 10 is provided with multiple evenly distributed longitudinal flow guide ribs 11, which extend along the height direction of the flow guide shell 10, and the cross-section of the flow guide ribs is triangular.

[0040] Furthermore, in the above technical solution, the collection chamber 20 has a cylindrical structure, the bottom of the collection chamber 20 is a closed structure, and a cleaning port is provided on the side wall of the collection chamber 20, which is closed by a cover plate.

[0041] Furthermore, in the above technical solution, the free end edge of the waste guide plate 30 is serrated, and the tip of the serration points towards the collection chamber 20.

[0042] Furthermore, in the above technical solution, an annular sealing boss is provided at the connection between the flow guide housing 10 and the collection chamber 20. The annular sealing boss extends inward from the lower opening edge of the flow guide housing 10, and the inner diameter of the annular sealing boss matches the outer diameter of the collection chamber 20.

[0043] Furthermore, in the above technical solution, the flow guide shell 10 is made of stainless steel sheet by stamping, and the wall thickness of the flow guide shell 10 is uniformly distributed.

[0044] Furthermore, in the above technical solution, the surface of the waste guide plate 30 is provided with an anti-stick coating, and the material of the anti-stick coating is polytetrafluoroethylene.

[0045] Specific Embodiment 1: This embodiment provides a waste collection and guiding mechanism for laser cutting equipment of metal sheets. The guiding shell is manufactured in one piece using a 2mm thick 304 stainless steel sheet through a stamping process. The guiding shell has an inverted trapezoidal cylindrical structure with an overall height of 450mm. The upper opening is square with a side length of 600mm, and the lower opening is circular with a diameter of 200mm. The four inner walls of the guiding shell form a 60-degree angle with the vertical direction, creating a uniform inclined surface. On each inner wall of the guiding shell, five longitudinal guiding ribs are welded along the height direction. Each guiding rib is a stainless steel strip with a triangular cross-section, a base width of 8mm, and a height of 6mm. The spacing between adjacent guiding ribs is 110mm. The guiding ribs extend downward from the upper opening of the guiding shell to a position 50mm away from the lower opening. The waste guide plate is bent from a 3mm thick stainless steel sheet, forming an arc-shaped structure. The guide plate is 350mm long and 80mm wide. One end is fixed to the inner wall of the guide housing, 120mm from the upper opening, via argon arc welding. The weld length is 80mm. The other end is a free end, extending towards the center of the guide housing. The free end is 150mm from the opposite inner wall of the guide housing, and the angle between the waste guide plate and the inner wall of the guide housing is 35 degrees. The radius of curvature of the waste guide plate gradually changes from the fixed end to the free end, with a radius of curvature of 800mm near the fixed end and 400mm near the free end. The entire guide plate surface is polished and then coated with a 0.05mm thick PTFE anti-stick coating. The free end edge of the waste guide plate is serrated, with a tooth pitch of 15mm, a tooth height of 8mm, and a tooth tip angle of 45 degrees, pointing towards the collection chamber. A waste guide plate is installed on each of the four inner walls of the flow guide shell. The four guide plates are staggered along the height of the flow guide shell, with a vertical height difference of 80mm between adjacent guide plates, forming a stepped flow guide structure. The collection chamber is a cylindrical stainless steel container, made of 3mm thick stainless steel plate rolled and welded, with an inner diameter of 220mm and a height of 500mm. The bottom is a flat, closed structure, connected to the cylindrical side wall by full welding. A rectangular cleaning port is opened on the side wall of the collection chamber at a height of 150mm from the bottom. The cleaning port has a size of 180mm x 200mm. The edge of the cleaning port is turned outward to form a flange with a width of 20mm. The matching cover plate is a flat structure with a size of 220mm x 240mm and a thickness of 4mm. A rubber sealing gasket is placed between the cover plate and the flange, and the connection is fastened with 4 M8 bolts.The lower opening edge of the guide housing extends inward to form an annular sealing boss. The boss is 10mm wide, 2mm thick, and has an inner diameter of 202mm, forming an interference fit with the outer diameter of the collection chamber with a clearance of 1mm. The guide housing is fitted onto the upper end of the collection chamber via the annular sealing boss. Silicone sealant is applied to the connection point, and it is secured with 12 evenly distributed M6 bolts to form a reliable sealing structure. The entire waste collection and guiding mechanism is installed directly below the worktable of the laser cutting machine and fixed to the machine base by four L-shaped brackets. The upper opening of the guide housing is aligned with the hollowed-out area of ​​the worktable to ensure that cutting waste can fall directly into the guide housing.

[0046] Specific Embodiment 2: This Embodiment 2 improves upon Embodiment 1 by modifying the structure of the waste guide plate. The waste guide plate is designed as a double-layer structure, with an auxiliary guide plate added below the original waste guide plate. The auxiliary guide plate is parallel to the main guide plate, with a vertical distance of 60mm between them. The auxiliary guide plate is 250mm long and 80mm wide, also employing an arc-shaped plate structure. One end is welded and fixed to the inner wall of the guide shell, while the other end is free. The angle between the auxiliary guide plate and the inner wall is 30 degrees. The surface of the auxiliary guide plate is also coated with a polytetrafluoroethylene anti-stick coating, and the edge of the free end is serrated. This double-layer guide plate structure provides a more complete flow path for waste of different sizes and shapes. Larger waste slides down the main guide plate, while smaller waste is guided by the auxiliary guide plate, further improving the integrity and reliability of waste collection. It is particularly suitable for complex cutting operations that simultaneously generate multiple specifications of waste.

[0047] Specifically, the principle of this utility model is as follows: The waste collection and guiding mechanism of this utility model fully utilizes the combined effects of gravity, geometric convergence, and surface guiding to achieve efficient waste collection. First, the inverted trapezoidal cylindrical guiding shell design is the core of the entire mechanism. Its upper opening width is greater than the lower opening width, allowing waste falling from the cutting area to be received over a large area. As the waste moves downward under the action of gravity, the converging structure of the guiding shell naturally concentrates the waste towards the central area. This geometric convergence effect effectively reduces the dispersion range of the waste. Second, the waste guide plate set on the inner wall of the guiding shell plays a key guiding role. The acute angle structure formed by the guide plate and the inner wall provides an inclined sliding surface for the waste. When the waste contacts the guide plate, it is guided by the surface of the guide plate, and its movement direction is effectively changed and controlled. The arc-shaped curved surface design and gradually varying radius of curvature of the guide plate ensure that the waste is subjected to stable force during sliding, avoiding rebound caused by sudden changes in direction. The smooth curved surface and anti-stick coating of the guide plate further reduce the coefficient of friction between the waste and the guide plate, allowing the waste to slide smoothly without adhesion or accumulation. Third, the longitudinal guide ridges on the inner wall form multiple parallel guide channels. These channels constrain and divert the waste's fall path, preventing lateral deviation and collisions during descent, ensuring the waste falls orderly along a predetermined path. Fourth, the serrated edge design at the free end of the waste guide plate effectively prevents adhesion caused by surface tension at the guide plate's end, ensuring the waste can smoothly detach from the guide plate and continue falling. Finally, the annular sealing boss between the collection chamber and the guide shell eliminates gaps at the connection, ensuring all waste passing through the guide shell enters the collection chamber intact without leakage. Through the comprehensive application of these various physical principles, this invention achieves precise guidance and efficient collection of cutting waste.

Claims

1. A waste collection and guiding mechanism for precise workpiece cutting, used to collect and guide waste generated during cutting, comprising a guide shell, a collection chamber, and a waste guide plate; characterized in that, The flow guide shell has an inverted trapezoidal cylindrical structure. The width of the upper opening of the flow guide shell is greater than the width of the lower opening. The inner wall of the flow guide shell is inclined. The collection chamber is fixedly connected to the lower opening of the flow guide shell. The collection chamber and the flow guide shell form a waste channel. The waste guide plate is set on the inner wall of the flow guide shell. One end of the waste guide plate is fixedly connected to the inner wall of the flow guide shell by welding. The other end of the waste guide plate is a free end and extends towards the collection chamber. An acute angle is formed between the waste guide plate and the inner wall of the flow guide shell. The surface of the waste guide plate is a smooth curved surface.

2. The waste collection and guiding mechanism for precise workpiece cutting according to claim 1, characterized in that, The ratio of the width of the upper opening to the width of the lower opening of the flow guide housing is 2:1 to 3:

1.

3. The waste collection and guiding mechanism for precise workpiece cutting according to claim 2, characterized in that, The included angle between the waste guide plate and the inner wall of the flow guide shell is 25° to 45°.

4. The waste collection and guiding mechanism for precise workpiece cutting according to claim 3, characterized in that, The waste guide plate has an arc-shaped plate structure, and the radius of curvature of the waste guide plate gradually decreases along the direction of waste falling.

5. The waste collection and guiding mechanism for precise workpiece cutting according to claim 4, characterized in that, The inner wall of the flow guide shell is provided with multiple evenly distributed longitudinal flow guide ridges, which extend along the height direction of the flow guide shell and have a triangular cross-section.

6. The waste collection and guiding mechanism for precise workpiece cutting according to claim 5, characterized in that, The collection chamber has a cylindrical structure with a closed bottom. A cleaning port is provided on the side wall of the collection chamber and is closed by a cover plate.

7. The waste collection and guiding mechanism for precise workpiece cutting according to claim 6, characterized in that, The free end edge of the waste guide plate is serrated, with the tips of the serrations pointing towards the collection chamber.

8. The waste collection and guiding mechanism for precise workpiece cutting according to claim 7, characterized in that, An annular sealing boss is provided at the connection between the flow guide shell and the collection chamber. The annular sealing boss extends inward from the lower opening edge of the flow guide shell, and the inner diameter of the annular sealing boss matches the outer diameter of the collection chamber.

9. A waste collection and guiding mechanism for precise workpiece cutting according to claim 8, characterized in that, The flow guide shell is made of stainless steel sheet by stamping, and the wall thickness of the flow guide shell is uniformly distributed.

10. A waste collection and guiding mechanism for precise workpiece cutting according to claim 9, characterized in that, The surface of the waste guide plate is provided with an anti-stick coating, and the material of the anti-stick coating is polytetrafluoroethylene.

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