Saw dust collecting assembly of small circular sawing machine

Abstract

The utility model provides a sawdust collecting assembly of a small circular sawing machine, and belongs to the technical field of sawing machines. The circular saw collecting device comprises a rack and a circular saw positioning support arranged below the rack, a circular saw is arranged on the circular saw positioning support, a feeding port is formed between the rack and the circular saw, a collecting shell is fixedly connected into the circular saw positioning support, and a feeding guide channel matched with the feeding port is arranged at the upper end of the collecting shell. Two adjacent collecting cloth bags are arranged in the collecting shell, a collecting inlet and a collecting outlet are formed in the upper end and the lower end of each collecting cloth bag respectively, an air suction device is arranged between each collecting cloth bag and the collecting shell, a collecting chamber is arranged at the bottom of the collecting shell, and a cloth bag vibrating mechanism capable of enabling the collecting cloth bags to vibrate is further arranged in the collecting shell. Sawdust can enter the collecting shell to be settled and collected, so that the sawdust is prevented from influencing normal operation of a machine tool and scattering on the ground, and the sawdust is convenient to clean; and the collection cloth bag in the collection shell is not blocked, and the settling collection of the saw dust can be accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of sawing machines and relates to a sawdust collecting component of a small circular saw machine. Background Art

[0002] A large amount of sawdust is generated during the process of cutting objects with a circular saw. The sawdust will enter the interior of the machine tool and will accumulate over time, affecting the normal operation of the machine tool. The circular saw machine itself does not have a sawdust collection device, so that sawdust is scattered all over the ground during operation. Excessive accumulation of sawdust will have a certain degree of impact on the operator's work, thereby reducing the operator's work efficiency and affecting the operator's health. In addition, the sawdust scattered on the ground is difficult to clean, which is not conducive to people's use. Utility Model Content

[0003] The purpose of the utility model is to provide a sawdust collecting assembly for a small circular saw machine in order to solve the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sawdust collection assembly for a small circular saw machine comprises a frame and a circular saw positioning bracket arranged below the frame, a circular saw is provided on the circular saw positioning bracket, a feed port is formed between the frame and the circular saw, a collecting shell is fixedly connected to the circular saw positioning bracket, a feed guide channel adapted to the feed port is provided at the upper end of the collecting shell, two adjacent collecting bags are provided in the collecting shell, a collecting inlet and a collecting outlet are respectively provided at the upper and lower ends of the collecting bag, an air suction device is provided between the collecting bag and the collecting shell, a collecting chamber is provided at the bottom of the collecting shell, and a bag vibrating mechanism capable of causing the collecting bag to vibrate is also provided in the collecting shell.

[0006] The feed guide channel guides the sawdust and can accelerate the sinking of the sawdust. The suction device can extract the air filtered by the collecting bag out of the collecting shell, so that the adsorption force is generated in the collecting bag, which can quickly guide the sawdust into the collecting bag. The air in the collecting bag is extracted so that only sawdust is left in the collecting bag, which can accelerate the sedimentation and collection of the sawdust. The bag vibration mechanism can make the collecting bag vibrate, and the collecting bag can use vibration to shake the sawdust adhered to the inner wall along the collection outlet into the collection chamber, thereby preventing the collecting bag from being blocked and accelerating the sedimentation and collection of the sawdust.

[0007] In the sawdust collection assembly of the above-mentioned small circular saw machine, an upper cloth bag positioning plate and a lower cloth bag positioning plate distributed up and down are provided in the collection shell, and the collection cloth bag is sequentially passed through the upper cloth bag positioning plate and the lower cloth bag positioning plate, and cloth bag positioning holes are respectively provided on the upper cloth bag positioning plate and the lower cloth bag positioning plate. The upper end of the collection cloth bag is connected to the upper cloth bag positioning plate by an upper fixing structure, and the lower end of the collection cloth bag is connected to the lower cloth bag positioning plate by a lower fixing structure.

[0008] The upper positioning plate and the lower positioning plate of the cloth bag play a role in positioning and fixing the collecting cloth bag. The upper and lower ends of the collecting cloth bag are respectively connected to the upper positioning plate and the lower positioning plate of the cloth bag through the upper fixing structure and the lower fixing structure. The upper and lower ends of the collecting cloth bag are firmly and reliably fixed, and are easy to disassemble and assemble.

[0009] In the sawdust collection assembly of the above-mentioned small circular saw machine, the cloth bag vibrating mechanism includes a shift plate arranged horizontally above the lower positioning plate of the cloth bag, and vibrating plates are respectively provided on both sides of the shift plate. The shift plate is connected to the lower positioning plate of the cloth bag through a sliding connection structure, and the lower positioning plate of the cloth bag is provided with a sliding drive mechanism that can drive the shift plate to slide back and forth horizontally on the lower positioning plate of the cloth bag.

[0010] The shift plate and the lower positioning plate of the cloth bag are slidably connected by a sliding connection structure. The sliding drive mechanism on the lower positioning plate of the cloth bag can drive the shift plate to slide back and forth laterally on the lower positioning plate of the cloth bag. When the shift plate slides back and forth laterally, the vibrating plate on the side of the shift plate vibrates the outer wall of the collecting cloth bag to make the collecting cloth bag vibrate, which can quickly vibrate the sawdust adhered to the inner wall of the collecting cloth bag into the collecting chamber, preventing the collecting cloth bag from being blocked and accelerating the sedimentation and collection of the sawdust.

[0011] In the sawdust collection assembly of the above-mentioned small circular saw machine, the sliding drive mechanism includes a driving rack arranged on the length side of the shift plate and distributed along the length direction of the shift plate, and a gear driver is provided on the lower positioning plate of the cloth bag. The output end of the gear driver is connected to a transmission gear that meshes with the driving rack.

[0012] The forward and reverse rotation of the transmission gear can drive the shift plate to slide back and forth laterally on the positioning plate under the bag through the meshing transmission with the driving rack, thereby driving the vibrating plate on the side of the shift plate to vibrate the outer wall of the collection bag, causing the collection bag to vibrate and quickly shake off the sawdust.

[0013] In the sawdust collecting assembly of the above-mentioned small circular saw machine, the sliding connection structure includes a T-shaped slide rail arranged on the lower positioning plate of the cloth bag and distributed laterally, and the bottom end of the shift plate is provided with a slide groove that slides with the T-shaped slide rail.

[0014] The sliding fit between the slide groove and the T-shaped slide rail can play a role of limiting and guiding, preventing the shift plate from shifting and ensuring the stability of the shift plate during sliding.

[0015] In the sawdust collecting assembly of the above-mentioned small circular saw machine, a plurality of arc-shaped hammers distributed along the length direction of the vibrating plate are provided on the side wall of the vibrating plate near the collecting bag.

[0016] During the horizontal reciprocating sliding of the shift plate, the arc-shaped hammer on the side wall of the vibrating plate hits the outer wall of the collecting bag, causing the collecting bag to vibrate. The arc-shaped hammer has a small force point, which can increase the hitting force and increase the vibration amplitude of the collecting bag, and can quickly vibrate the sawdust adhered to the inner wall of the collecting bag into the collection chamber.

[0017] In the sawdust collection assembly of the above-mentioned small circular saw machine, the suction device includes a suction area formed between the upper positioning plate of the cloth bag and the lower positioning plate of the cloth bag, and the side wall of the collection shell located in the suction area is penetrated by an exhaust channel, and the exhaust channel is penetrated by an exhaust pipe, and the exhaust pipe is connected to an external intermittent exhaust fan.

[0018] The intermittent exhaust fan runs intermittently and extracts the air filtered by the collection bag in the suction area out of the collection shell through the exhaust pipe, which can quickly guide the sawdust into the collection bag and leave only sawdust in the collection bag, which can accelerate the sedimentation and collection of the sawdust.

[0019] In the sawdust collection assembly of the above-mentioned small circular saw machine, the lower fixed structure includes a fixing platform arranged on the lower positioning plate of the cloth bag and located on the periphery of the cloth bag positioning hole. A fixing hole connected to the cloth bag positioning hole is penetrated by the fixing platform, and the lower end of the collecting cloth bag is open and covered on the periphery of the fixing platform and fixed by a clamp.

[0020] The lower end of the collecting bag passes through the fixing hole of the fixing platform and is covered on the outer periphery of the fixing platform so that the collecting outlet is set in an open shape. The open lower end of the collecting bag is fixed to the outer periphery of the fixing platform by a clamp, and the connection is firm and easy to disassemble and assemble.

[0021] In the sawdust collection assembly of the above-mentioned small circular saw machine, the upper fixed structure includes a positioning inner step arranged on the positioning plate on the cloth bag, and the upper end of the collection cloth bag is provided with a positioning boss adapted to the positioning inner step, and the height of the positioning inner step is greater than the thickness of the positioning boss.

[0022] The positioning boss at the upper end of the collecting bag rests against the inner positioning step on the positioning plate on the bag, which supports and fixes the upper end of the collecting bag. The upper end of the collecting bag is firmly fixed, and the height of the inner positioning step is greater than the thickness of the positioning boss. Therefore, when the collecting bag vibrates, the upper end of the collecting bag is not easy to shift or fall off, and is firmly fixed.

[0023] In the sawdust collecting assembly of the above-mentioned small circular saw machine, the cross section of the collecting chamber is conical, a discharge channel is provided at the bottom of the collecting chamber, and a discharge valve is provided near the end of the discharge channel near the collecting chamber.

[0024] The conical cross-section of the collecting chamber is conducive to the sawdust settling and gathering in the discharge channel at the bottom. The discharge valve is used to open and close the discharge channel. When the sawdust in the collecting chamber is full, the discharge channel is opened by the discharge valve to discharge the sawdust.

[0025] Compared with existing technologies, the advantages of this utility model are: 1. Sawdust generated by the circular saw can enter the collection housing for sedimentation and collection, preventing the sawdust from affecting the normal operation of the machine tool and scattering on the ground, and making sawdust cleaning convenient. 2. The collection bag in the collection housing will not be clogged and can accelerate the sedimentation and collection of sawdust. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0027] Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0028] Figure 3 It is a top view of the bag rapping mechanism;

[0029] Figure 4 It is a side view of the bag rapping mechanism.

[0030] In the figure, the frame 1, the circular saw positioning bracket 2, the circular saw 3, the feed port 4, the collecting shell 5, the feed guide channel 6, the collecting bag 7, the collecting inlet 8, the collecting outlet 9, the suction device 10, the collecting chamber 11, the bag vibrating mechanism 12, the bag upper positioning plate 13, the bag lower positioning plate 14, the bag positioning hole 15, the upper fixed structure 16, the lower fixed structure 17, the shift plate 18, the vibrating plate 19, the sliding connection structure 20, the sliding drive mechanism 21, the drive rack 22, the gear driver 23, the transmission gear 24, the T-shaped slide rail 25, the slide 26, the arc hammer 27, the suction area 28, the exhaust channel 29, the fixing platform 30, the fixing hole 31, the clamp 32, the positioning inner step 33, the positioning boss 34, the discharge channel 35, and the unloading valve 36. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 4As shown, a sawdust collection assembly of a small circular saw machine includes a frame 1 and a circular saw positioning bracket 2 arranged below the frame 1, a circular saw 3 is provided on the circular saw positioning bracket 2, a feed port 4 is formed between the frame 1 and the circular saw 3, a collecting shell 5 is fixedly connected to the circular saw positioning bracket 2, a feed guide channel 6 adapted to the feed port 4 is provided at the upper end of the collecting shell 5, two adjacent collecting bags 7 are provided in the collecting shell 5, a collecting inlet 8 and a collecting outlet 9 are respectively provided at the upper and lower ends of the collecting bag 7, a suction device 10 is provided between the collecting bag 7 and the collecting shell 5, a collecting chamber 11 is provided at the bottom of the collecting shell 5, and a bag vibrating mechanism 12 capable of vibrating the collecting bag 7 is also provided in the collecting shell 5.

[0032] In the present utility model, the sawdust generated during the cutting process of the circular saw 3 passes through the feed port 4 and enters the collecting shell 5 along the feed guide channel 6. The sawdust falling into the collecting shell 5 enters the collecting bag 7 along the collecting inlet 8 at the upper end of the collecting bag 7, and falls into the collecting chamber 11 through the collecting outlet 9 at the lower end of the collecting bag 7.

[0033] The inner wall of the feed guide channel 6 is an inclined surface that gradually tilts outward from bottom to top.

[0034] The feed guide channel 6 guides the sawdust and can accelerate the sinking of the sawdust. The suction device 10 between the collecting bag 7 and the collecting shell 5 can extract the air filtered by the collecting bag 7 out of the collecting shell 5, so that the collecting bag 7 generates an adsorption force to guide the sawdust into the collecting bag 7. The air in the collecting bag 7 is extracted so that only sawdust is left in the collecting bag 7, which can accelerate the sedimentation and collection of the sawdust. The bag vibrating mechanism 12 in the collecting shell 5 can make the collecting bag 7 vibrate. The collecting bag 7 can use vibration to shake the sawdust adhered to the inner wall along the collecting outlet 9 into the collecting chamber 11, thereby preventing the collecting bag 7 from being blocked and accelerating the sedimentation and collection of the sawdust.

[0035] Specifically, combined Figure 1 and Figure 2 As shown, an upper cloth bag positioning plate 13 and a lower cloth bag positioning plate 14 are provided in the collecting shell 5, which are distributed up and down. The collecting cloth bag 7 is sequentially passed through the upper cloth bag positioning plate 13 and the lower cloth bag positioning plate 14. Cloth bag positioning holes 15 are respectively provided on the upper cloth bag positioning plate 13 and the lower cloth bag positioning plate 14. The upper end of the collecting cloth bag 7 is connected to the upper cloth bag positioning plate 13 by an upper fixing structure 16, and the lower end of the collecting cloth bag 7 is connected to the lower cloth bag positioning plate 14 by a lower fixing structure 17.

[0036] The upper positioning plate 13 of the cloth bag and the lower positioning plate 14 of the cloth bag play a role in positioning and fixing the collecting cloth bag 7. The upper and lower ends of the collecting cloth bag 7 are respectively connected to the upper positioning plate 13 of the cloth bag and the lower positioning plate 14 of the cloth bag through the upper fixing structure 16 and the lower fixing structure 17. The upper and lower ends of the collecting cloth bag 7 are firmly and reliably fixed, and are easy to disassemble and assemble.

[0037] Specifically, combined Figure 2-Figure 4 As shown, the cloth bag vibrating mechanism 12 includes a shift plate 18 arranged laterally above the cloth bag lower positioning plate 14, and vibrating plates 19 are respectively provided on both sides of the shift plate 18. The shift plate 18 is connected to the cloth bag lower positioning plate 14 through a sliding connection structure 20, and the cloth bag lower positioning plate 14 is provided with a sliding drive mechanism 21 that can drive the shift plate 18 to slide back and forth laterally on the cloth bag lower positioning plate 14.

[0038] The shift plate 18 is slidably connected to the lower positioning plate 14 of the cloth bag through a sliding connection structure 20. The sliding drive mechanism 21 on the lower positioning plate 14 of the cloth bag can drive the shift plate 18 to slide back and forth laterally on the lower positioning plate 14 of the cloth bag. When the shift plate 18 slides back and forth laterally, the vibrating plate 19 on the side of the shift plate 18 vibrates the outer wall of the collecting cloth bag 7 to vibrate the collecting cloth bag 7, which can quickly vibrate the sawdust adhered to the inner wall of the collecting cloth bag 7 into the collecting chamber 11, thereby preventing the collecting cloth bag 7 from being blocked and accelerating the sedimentation and collection of the sawdust.

[0039] Specifically, combined Figure 2-Figure 4 As shown, the sliding drive mechanism 21 includes a driving rack 22 arranged on the length side of the shift plate 18 and distributed along the length direction of the shift plate 18, and a gear driver 23 is provided on the lower positioning plate 14 of the cloth bag. The output end of the gear driver 23 is connected to a transmission gear 24 that meshes with the driving rack 22 for transmission.

[0040] The gear driver 23 can drive the transmission gear 24 to rotate forward or reverse. The forward and reverse rotation of the transmission gear 24 can drive the shift plate 18 to slide back and forth laterally on the lower positioning plate 14 of the bag through the meshing transmission with the driving rack 22, thereby driving the vibrating plate 19 on the side of the shift plate 18 to vibrate the outer wall of the collection bag 7, causing the collection bag 7 to vibrate to quickly shake off the sawdust. The meshing transmission between the driving rack 22 and the transmission gear 24 can ensure a constant transmission ratio, transmit large power, and maintain stable performance under long-term, high-load working conditions.

[0041] Specifically, combined Figure 2 and Figure 4 As shown, the sliding connection structure 20 includes a T-shaped slide rail 25 arranged on the lower positioning plate 14 of the cloth bag and distributed along the transverse direction, and a slide groove 26 is provided at the bottom end of the shift plate 18 to slide with the T-shaped slide rail 25.

[0042] During the horizontal reciprocating sliding of the shift plate 18 on the lower positioning plate 14 of the cloth bag, the slide groove 26 at the bottom end of the shift plate 18 slides on the T-shaped slide rail 25 on the lower positioning plate 14 of the cloth bag. The sliding cooperation between the slide groove 26 and the T-shaped slide rail 25 can play a limiting and guiding role, thereby preventing the shift plate 18 from shifting and ensuring the stability of the shift plate 18 during the sliding process.

[0043] Preferably, combined Figure 2-Figure 4 As shown, a plurality of arc-shaped hammers 27 distributed along the length direction of the rapping plate 19 are provided on the side wall of the rapping plate 19 near the collecting bag 7 .

[0044] During the horizontal reciprocating sliding of the shift plate 18, the arc-shaped hammer 27 on the side wall of the vibrating plate 19 hits the outer wall of the collecting bag 7, causing the collecting bag 7 to vibrate. The arc-shaped hammer 27 has a small force point, which can increase the hitting force and increase the vibration amplitude of the collecting bag 7, and can quickly vibrate the sawdust adhered to the inner wall of the collecting bag 7 into the collection chamber 11.

[0045] Specifically, combined Figure 1 As shown, the suction device 10 includes a suction area 28 formed between the upper positioning plate 13 of the cloth bag and the lower positioning plate 14 of the cloth bag. An exhaust channel 29 is provided on the side wall of the collecting shell 5 located in the suction area 28. A vacuum pipe is provided in the vacuum channel 29, and the vacuum pipe is connected to an external intermittent exhaust fan.

[0046] The intermittent exhaust fan runs intermittently and extracts the air filtered by the collection bag 7 in the suction area 28 out of the collection shell 5 through the exhaust pipe, which can guide the sawdust into the collection bag 7 and leave only sawdust in the collection bag 7, thereby accelerating the sedimentation and collection of the sawdust.

[0047] Specifically, combined Figure 1 and Figure 2 As shown, the lower fixing structure 17 includes a fixing platform 30 arranged on the lower positioning plate 14 of the cloth bag and located on the periphery of the cloth bag positioning hole 15. A fixing hole 31 connected to the cloth bag positioning hole 15 is penetrated by the fixing platform 30. The lower end of the collecting cloth bag 7 is open and covered on the periphery of the fixing platform 30 and is fixed by a clamp 32.

[0048] The lower end of the collecting bag 7 passes through the fixing hole 31 of the fixing platform 30 and is covered on the outer periphery of the fixing platform 30 so that the collecting outlet 9 is set in an open shape. The open lower end of the collecting bag 7 is fixed to the outer periphery of the fixing platform 30 by a clamp 32, and the connection is firm and easy to disassemble and assemble.

[0049] Specifically, combined Figure 1 and Figure 2As shown, the upper fixing structure 16 includes a positioning inner step 33 arranged on the cloth bag upper positioning plate 13, and the upper end of the collecting cloth bag 7 is sleeved with a positioning boss 34 adapted to the positioning inner step 33, and the height of the positioning inner step 33 is greater than the thickness of the positioning boss 34.

[0050] The positioning boss 34 at the upper end of the collecting bag 7 rests against the positioning inner step 33 on the positioning plate 13 on the bag, supporting and fixing the upper end of the collecting bag 7. The upper end of the collecting bag 7 is firmly fixed, and the height of the positioning inner step 33 is greater than the thickness of the positioning boss 34. Therefore, when the collecting bag 7 vibrates, the upper end of the collecting bag 7 is not easily displaced or fallen off, and is firmly fixed.

[0051] Specifically, combined Figure 1 As shown, the cross section of the collecting chamber 11 is conical, a discharge channel 35 is provided at the bottom of the collecting chamber 11 , and a discharge valve 36 is provided near the end of the discharge channel 35 near the collecting chamber 11 .

[0052] The conical cross-section of the collecting chamber 11 is conducive to the sawdust settling and gathering in the discharge channel 35 at the bottom. The discharge valve 36 is used to open and close the discharge channel 35. When the sawdust in the collecting chamber 11 is full, the discharge channel 35 is opened by the discharge valve 36 to discharge the sawdust.

[0053] The working principle of the present invention is as follows: sawdust generated during the cutting process of the workpiece by the circular saw 3 passes through the feed port 4 and along the feed guide channel 6 into the collection shell 5; the sawdust falling into the collection shell 5 enters the collection bag 7 along the collection inlet 8 at the upper end of the collection bag 7 and falls into the collection chamber 11 through the collection outlet 9 at the lower end of the collection bag 7; when the sawdust in the collection chamber 11 is full, the discharge channel 35 is opened by the discharge valve 36 to discharge the sawdust;

[0054] The intermittent exhaust fan operates intermittently and extracts the air filtered by the collection bag 7 in the suction area 28 out of the collection housing 5 through the exhaust pipe, which can quickly guide the sawdust into the collection bag 7 and leave only sawdust in the collection bag 7, thereby accelerating the sedimentation and collection of the sawdust.

[0055] The gear driver 23 can drive the transmission gear 24 to rotate forward or reverse. The transmission gear 24 can drive the shift plate 18 to slide back and forth laterally on the lower positioning plate 14 of the bag through the meshing transmission with the drive rack 22, so that the arc-shaped hammer 27 on the side wall of the vibrating plate 19 hits the outer wall of the collecting bag 7, causing the collecting bag 7 to vibrate, so as to quickly shake off the sawdust and prevent the collecting bag 7 from being blocked.

[0056] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0057] Although this article uses the frame 1, circular saw positioning bracket 2, circular saw 3, feed port 4, collection shell 5, feed guide channel 6, collection bag 7, collection inlet 8, collection outlet 9, suction device 10, collection chamber 11, bag vibrating mechanism 12, bag upper positioning plate 13, bag lower positioning plate 14, bag positioning hole 15, upper fixed structure 16, lower fixed structure 17, shift plate 18, vibrating plate 19, sliding connection structure 20, sliding drive mechanism 21, drive rack 22, gear driver 23, transmission gear 24, T-shaped slide rail 25, slide 26, arc hammer 27, suction area 28, exhaust channel 29, fixed platform 30, fixed hole 31, hoop 32, positioning inner step 33, positioning boss 34, discharge channel 35, unloading valve 36, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A sawdust collecting assembly for a small circular saw machine, comprising a frame (1) and a circular saw positioning bracket (2) arranged below the frame (1), a circular saw (3) being arranged on the circular saw positioning bracket (2), a feeding port (4) being formed between the frame (1) and the circular saw (3), and characterized in that: A collecting shell (5) is fixedly connected to the circular saw positioning bracket (2), and a feed guide channel (6) adapted to the feed port (4) is provided at the upper end of the collecting shell (5). Two adjacent collecting bags (7) are provided in the collecting shell (5), and a collecting inlet (8) and a collecting outlet (9) are provided at the upper and lower ends of the collecting bag (7), respectively. A suction device (10) is provided between the collecting bag (7) and the collecting shell (5), and a collecting chamber (11) is provided at the bottom of the collecting shell (5). A bag vibrating mechanism (12) capable of vibrating the collecting bag (7) is also provided in the collecting shell (5).

2. The sawdust collecting assembly of a small circular saw machine according to claim 1, characterized in that: The collecting shell (5) is provided with an upper cloth bag positioning plate (13) and a lower cloth bag positioning plate (14) distributed up and down, the collecting cloth bag (7) is sequentially passed through the upper cloth bag positioning plate (13) and the lower cloth bag positioning plate (14), and cloth bag positioning holes (15) are respectively provided on the upper cloth bag positioning plate (13) and the lower cloth bag positioning plate (14), the upper end of the collecting cloth bag (7) is connected to the upper cloth bag positioning plate (13) via an upper fixing structure (16), and the lower end of the collecting cloth bag (7) is connected to the lower cloth bag positioning plate (14) via a lower fixing structure (17).

3. The sawdust collecting assembly of a small circular saw according to claim 2, characterized in that: The cloth bag vibrating mechanism (12) includes a shift plate (18) arranged transversely above the cloth bag lower positioning plate (14), and vibrating plates (19) are respectively provided on both sides of the shift plate (18). The shift plate (18) and the cloth bag lower positioning plate (14) are connected via a sliding connection structure (20), and the cloth bag lower positioning plate (14) is provided with a sliding drive mechanism (21) capable of driving the shift plate (18) to slide back and forth transversely on the cloth bag lower positioning plate (14).

4. The sawdust collecting assembly of a small circular saw according to claim 3, characterized in that: The sliding drive mechanism (21) includes a driving rack (22) arranged on the length side of the shift plate (18) and distributed along the length direction of the shift plate (18); a gear driver (23) is provided on the cloth bag lower positioning plate (14); and an output end of the gear driver (23) is connected to a transmission gear (24) that meshes with the driving rack (22).

5. The sawdust collecting assembly of a small circular saw machine according to claim 3, characterized in that: The sliding connection structure (20) comprises a T-shaped slide rail (25) arranged on the lower positioning plate (14) of the cloth bag and distributed along the transverse direction, and a slide groove (26) is provided at the bottom end of the shift plate (18) and is slidably engaged with the T-shaped slide rail (25).

6. The sawdust collecting assembly of a small circular saw machine according to claim 3, characterized in that: A plurality of arc-shaped hammers (27) distributed along the length direction of the vibrating plate (19) are provided on the side wall of the vibrating plate (19) near the collecting bag (7).

7. The sawdust collecting assembly of a small circular saw according to claim 2, characterized in that: The suction device (10) includes a suction area (28) formed between an upper positioning plate (13) of the cloth bag and a lower positioning plate (14) of the cloth bag. An exhaust channel (29) is provided on the side wall of the collection shell (5) located in the suction area (28). An exhaust pipe is provided in the exhaust channel (29), and the exhaust pipe is connected to an external intermittent exhaust fan.

8. The sawdust collecting assembly of a small circular saw according to any one of claims 2 to 7, characterized in that: The lower fixing structure (17) includes a fixing platform (30) arranged on the lower positioning plate (14) of the cloth bag and located at the periphery of the cloth bag positioning hole (15); a fixing hole (31) connected to the cloth bag positioning hole (15) is provided through the fixing platform (30); the lower end of the collecting cloth bag (7) is open and covers the periphery of the fixing platform (30) and is fixed by a clamp (32).

9. The sawdust collecting assembly of a small circular saw machine according to claim 8, characterized in that: The upper fixing structure (16) includes a positioning inner step (33) provided on the upper positioning plate (13) of the cloth bag, and the upper end of the collecting cloth bag (7) is provided with a positioning boss (34) adapted to the positioning inner step (33), and the height of the positioning inner step (33) is greater than the thickness of the positioning boss (34).

10. The sawdust collecting assembly of a small circular saw according to any one of claims 2 to 7, characterized in that: The collecting chamber (11) has a conical cross section, a discharge channel (35) is provided at the bottom of the collecting chamber (11), and a discharge valve (36) is provided at the end of the discharge channel (35) near the collecting chamber (11).

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