Device for cleaning saw dust on surface of saw blade in sawing process of sawing machine

Abstract

The utility model discloses a device for cleaning saw dust on the surface of a saw blade in the sawing process of a sawing machine, which is arranged on one side where the saw blade saws a workpiece and comprises a cleaning mechanism and a pre-cleaning mechanism. According to the cleaning mechanism, a cleaning wheel capable of making contact with the saw blade is arranged on the side, in the saw blade advancing direction, of the workpiece, and grooves making contact with the two side faces of the saw blade are formed in the circumferential face of the cleaning wheel. The pre-cleaning mechanism is a purging air pipe which is arranged between the cleaning wheel and the workpiece and located on the top side of the saw blade. According to the cleaning device, saw dust adhering to the saw blade is cleaned in advance through the pre-cleaning mechanism, the cleaning amount of the saw dust on the saw blade is reduced, then the remaining saw dust on the saw blade is completely cleaned through the cleaning mechanism, and therefore when the saw blade makes contact with a workpiece again after rotation, the cleanliness of the surface of the saw blade is guaranteed; therefore, the surface quality of the sawing end face of the workpiece can be guaranteed, and meanwhile the problem that saw dust enters a sawing gap of the workpiece along with the workpiece to cause clamping stagnation and breakage of a saw blade is solved.

Description

Technical Field

[0001] This application relates to the field of metal workpiece sawing technology, and in particular to a saw blade surface cleaning device during sawing process. Background Technology

[0002] Sawing is an important cutting process in machining, mainly using hand saws or sawing equipment to divide workpieces or materials. Because sawing does not cause changes in the metallographic structure of the cut surface (such as work hardening), annealing is not required, making it widely used in workpiece division. For example, it can saw blanks of different diameters, pipes, and open profiles, as well as bundles of bars. Compared to shearing, sawing can achieve smaller quality tolerances and more accurate cutting lengths, enabling the production of more precise workpieces.

[0003] Currently, when sawing metal workpieces, because the workpieces being machined are usually made of metal, which is relatively hard, methods such as those provided in the instruction manual are typically used. Figure 1-2 The saw shown is used for sawing operations. For example... Figure 2-3 As shown, the workpiece (a bar in the figure) is clamped on a sawing machine. The sawing machine is started, and its saw blade moves in a rotary motion, descending at a uniform speed under the control of the sawing machine. When the saw blade contacts the workpiece, a sawing operation is performed, and as the saw blade continues to descend, a complete sawing of the workpiece is completed. During continuous sawing, sawdust is generated at the sawing location on the workpiece. Because several saw teeth on the bottom side of the saw blade are inclined towards the outer sides of the front and rear surfaces of the saw blade, the sawdust adheres to the saw blade (saw teeth). Since the saw blade has a rotary operating structure, the portion of the saw blade with adhered sawdust will rotate again to contact the workpiece for sawing, as... Figure 4 As shown, the adhered sawdust comes into contact with the surface of the workpiece being cut, which can easily cause scratches on the cut surface. At the same time, the adhered sawdust increases the width of the saw blade, making it easy for the saw blade to get stuck when entering the workpiece, which in turn leads to the saw blade being prone to breakage. This not only poses a safety hazard but also increases the cost of using the saw blade. Summary of the Invention

[0004] To address the aforementioned problems, this application aims to provide a saw blade surface cleaning device during the sawing process of a sawing machine. This device can continuously clean the saw blade chips adhering to the saw blade during the sawing process, ensuring the cleanliness of the saw blade surface. This, in turn, ensures the surface quality of the sawed end face of the workpiece, while preventing saw chips from entering the sawing gap of the workpiece along with the workpiece, thus avoiding the problems of saw blade jamming and breakage.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a saw blade surface chip cleaning device during the sawing process of a sawing machine, characterized in that: the chip cleaning device is set on one side of the workpiece cut by the saw blade, the chip cleaning device includes a cleaning mechanism connected to the saw blade and driven by the saw blade, and a pre-cleaning mechanism is also provided between the cleaning mechanism and the workpiece.

[0006] Preferably, the cleaning mechanism is a cleaning wheel that can contact the saw blade on the side of the workpiece located in the direction of the saw blade's travel, and the cleaning wheel has grooves on its circumferential surface that contact the two sides of the saw blade.

[0007] Preferably, the pre-cleaning mechanism is a purge air pipe disposed between the cleaning wheel and the workpiece and located on the top side of the saw blade, and the centerline of the purge air pipe is aligned with the length direction of the saw blade.

[0008] Preferably, the purge air pipe and the saw teeth of the saw blade are inclined at the same angle.

[0009] The beneficial effects of this application are: the cleaning device pre-cleans the saw chips adhering to the saw blade through the pre-cleaning mechanism, thereby reducing the amount of saw chips on the saw blade. Then, the cleaning mechanism completely cleans the remaining saw chips on the saw blade, thus ensuring the cleanliness of the saw blade surface when the saw blade contacts the workpiece again after rotation. This ensures the surface quality of the saw cut end of the workpiece and avoids saw chips from entering the saw cut gap of the workpiece along with the workpiece, causing the saw blade to jam and break. Attached Figure Description

[0010] Figure 1 This is a diagram of a saw currently in use.

[0011] Figure 2 This diagram illustrates the sawing of a workpiece by moving the saw blade downwards.

[0012] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0013] Figure 4 for Figure 3 The sawdust adhering to the saw blade is rotated and re-enters the workpiece, as shown in the diagram.

[0014] Figure 5 This is a front view structural diagram of the cleaning wheel in this application.

[0015] Figure 6 This is a side view of the cleaning wheel structure for this application.

[0016] Figure 7 This illustration shows the process of cleaning sawdust adhering to the saw blade for cleaning the wheel-type saw blade in this application.

[0017] Figure 8This diagram illustrates the use of the purge air pipe to blow away sawdust adhering to the saw blade, and the subsequent cleaning by the cleaning wheel.

[0018] Figure 9 This illustration shows the simultaneous blowing of the air tube on both sides of the saw blade for the purposes of this application.

[0019] Figure 10 A physical illustration of the cleaning wheel installed on the sawing machine in this application.

[0020] In the diagram: 4 - workpiece; 41 - sawdust. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] See attached document Figures 1-9 The diagram illustrates a saw blade surface cleaning device used during the sawing process of a sawing machine. This device is positioned on the side of the saw blade 1 that has cut the workpiece. The device includes a cleaning mechanism connected to and driven by the saw blade 1, and a pre-cleaning mechanism positioned between the cleaning mechanism and the workpiece. The cleaning mechanism continuously cleans the saw blade of continuously adhering sawdust while the saw blade is moving, ensuring the cleanliness of the saw blade surface when it re-engages with the workpiece after rotation. This guarantees the surface quality of the cut end of the workpiece and prevents sawdust from entering the kerf along with the workpiece, causing saw blade jamming or breakage.

[0023] During the sawing process, sawdust is continuously generated and adheres to the saw blade. Therefore, the continuous cleaning by the cleaning mechanism will cause the sawdust to accumulate on the cleaning mechanism, resulting in the problem that sawdust adhering to the saw blade again in the later stages of the sawing operation cannot be completely cleaned. Therefore, the pre-cleaning mechanism is used to pre-clean the sawdust adhering to the saw blade, thereby reducing the amount of sawdust that the cleaning mechanism needs to clean from the saw blade. This ensures that the sawdust adhering to the saw blade can still be completely cleaned throughout the entire sawing process of the workpiece, especially in the later stages, thus ensuring the overall surface quality of the sawn end face of the workpiece and avoiding the problem of the saw blade getting stuck in the workpiece in the later stages of sawing, making it difficult to remove a broken saw blade.

[0024] Specifically, such as Figure 5-7 As shown, the cleaning mechanism consists of a cleaning wheel 2 positioned on the side of the workpiece located in the direction of travel of the saw blade 1, which can contact the saw blade 1. This cleaning wheel 2 is preferably a roughened structure made of metal brush. During contact with the saw blade, the saw blade drives the cleaning wheel 2 to rotate continuously, and the roughened structure removes the sawdust adhering to the saw blade. To increase the cleaning area for sawdust adhering to the surface of the saw blade 1, such as... Figure 6As shown, the cleaning wheel 2 has grooves 2a on its circumference that contact the two sides of the saw blade 1. The saw blade can be embedded in the grooves 2a, so that the saw teeth and the saw chips adhering to both sides of the saw blade can be completely cleaned, so that the surface of the saw blade after rotation has good cleanliness, solves the problem of saw chips blocking the saw teeth, and ensures the sawing efficiency of the workpiece.

[0025] Specifically, such as Figure 8 As shown, the pre-cleaning mechanism is a purge air pipe 3 located between the cleaning wheel 2 and the workpiece, on the top side of the saw blade 1, with the centerline of the purge air pipe 3 aligned with the length direction of the saw blade 1. During the saw blade's rotational sawing process, when the saw blade rotates from the workpiece to the outside of the workpiece, the sawdust adhering to the saw blade is blown off the surface of the saw blade into the sawing machine by the purge air pipe 3. Thus, when the saw blade contacts the cleaning wheel 2, there is a small amount of adhering sawdust on the saw blade. Through contact with the cleaning wheel 2, this small amount of adhering sawdust is cleaned again, thereby reducing the amount of sawdust cleaned by the cleaning wheel 2 during the entire sawing process of the workpiece, ensuring that the sawdust adhering to the saw blade can still be completely cleaned in the later stage of sawing the workpiece. The alignment of the centerline of the purge air pipe 3 with the length direction of the saw blade 1 ensures that... Figure 9 As shown, the blowing air pipe 3 can blow away sawdust from both sides of the saw blade, improving the cleanliness of the inner and outer surfaces of the saw blade.

[0026] To further improve the blowing effect on sawdust adhering to the saw blade surface, such as... Figure 8 As shown, the purge air pipe 3 and the saw teeth of the saw blade 1 are inclined at the same angle, that is, the purge gas flows along the inclined direction of the saw teeth. Figure 8 (As shown by the dashed line in the middle), which allows sawdust to detach smoothly from the saw teeth, thus avoiding the problem that the blower is not parallel to the saw teeth and is blocked by the saw teeth, preventing the sawdust from detaching smoothly from the saw teeth, and further reducing the cleaning amount of the cleaning wheel 2.

[0027] The principle of this application is as follows: When the workpiece is sawn by the sawing machine, after the saw blade separates from the workpiece during the rotation process, the sawdust adhering to it is first pre-blown by the blowing air pipe 3, so that some of the sawdust is directly blown off into the sawing machine; while the sawdust that is not blown off continues to move backward with the rotation of the saw blade, and after contacting the cleaning wheel 2, the cleaning wheel 2 rotates with the drive of the saw blade, mechanically cleaning the remaining sawdust on the saw blade, thereby ensuring the cleanliness of the saw blade surface when it contacts the workpiece again after rotation, ensuring the overall surface quality of the sawed end face of the workpiece, and avoiding the problem of the saw blade getting stuck in the workpiece in the later stage of sawing, making it difficult to remove the broken saw blade.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this application. Various changes and modifications may be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A sawdust cleaning device for the surface of a saw blade during sawing, characterized in that: The saw chip cleaning device is set on one side of the workpiece cut by the saw blade (1). The saw chip cleaning device includes a cleaning mechanism that is connected to the saw blade (1) and driven by the saw blade (1). The cleaning mechanism is a cleaning wheel (2) that can contact the saw blade (1) on the side of the workpiece located in the direction of travel of the saw blade (1). The cleaning wheel (2) has grooves (2a) on its circumference that contact the two sides of the saw blade (1). A pre-cleaning mechanism is also provided between the cleaning mechanism and the workpiece. The pre-cleaning mechanism is a purge air pipe (3) provided between the cleaning wheel (2) and the workpiece and located on the top side of the saw blade (1). The centerline of the purge air pipe (3) is aligned with the length direction of the saw blade (1). The purge air pipe (3) and the saw teeth of the saw blade (1) are inclined at the same angle.

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