Sawing machine with saw blade convenient to replace

Abstract

The sawing machine comprises a working platform and a fixing block, a through groove and a sliding groove are formed in the top face of the working platform, a fixing plate is arranged on the front side of the top face of the working platform, the fixing plate is movably connected with an extension rod, through holes are evenly formed in the extension rod, and a saw blade is arranged in the through groove. And inserting blocks are symmetrically arranged on the bottom surface of the fixing block. The cleaning mechanism is used for cleaning chippings on the saw blade when the saw blade carries out cutting work, the influence of the chippings on the saw blade is reduced, the service life of the saw blade is prolonged, and the cutting effect of the saw blade is ensured; then the rotary knob limits and fixes the saw blade through clamping connection of the clamping block and the first groove, the saw blade is prevented from falling off in actual use, operation is easy, the installation time is shortened, the working efficiency is improved, and fine adjustment and coarse adjustment can be conducted on the clamping plate through cooperation of the screw rod and the extension rod.

Description

Technical Field

[0001] The utility model relates to the technical field of sawing machines, in particular to a sawing machine with convenient replacement of saw blades. Background Art

[0002] Saws are a kind of cutting tools. Saws are divided into three types: circular saws, band saws and bow saws. Circular saws are the most commonly used for wood cutting. Circular saws are divided into fully automatic and semi-automatic. They cut materials by rotating the circular saw blade.

[0003] The existing sawing machines generally use the cooperation of bolts and nuts to install and fix the saw blade. In actual use, the saw blade will be worn out due to long-term use, resulting in poor cutting effect of the saw blade and needs to be replaced in time. However, the cooperation of the bolts and nuts is more troublesome during disassembly and installation, and the replacement time is long, which affects work efficiency. In addition, the saw blade of the existing sawing machine will have debris left during cutting. After long-term use, the saw blade will be affected by the debris, resulting in poor cutting effect of the saw blade. In addition, when adjusting the clamping plate, the existing sawing machine generally uses a screw to adjust the position of the clamping plate. However, when the adjustment range is large, the screw adjustment speed is relatively slow, which affects work efficiency.

[0004] Therefore, we propose a sawing machine that is convenient for replacing saw blades to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a sawing machine with convenient replacement of saw blades, so as to solve the problems mentioned in the above background technology that the installation and disassembly of the existing circular sawing machine when replacing the saw blade is troublesome, wastes time, reduces work efficiency, cannot remove the debris on the saw blade during cutting, and the screw rod is slow in adjusting the position of the clamping plate.

[0006] The top surface of the working platform is provided with a through groove and a slide groove, and the front side of the top surface of the working platform is provided with a fixing plate, the fixing plate is movably connected with an extension rod, and the extension rod is evenly provided with through holes, the bottom surface of the fixing block is symmetrically provided with an insert block, the insert block movably penetrates the top surface of the fixing plate and is connected with the through hole, the extension rod is close to the through groove One end of the through groove is fixedly connected with the movable plate, the movable plate is threadedly connected with a screw, the end of the screw close to the through groove is axially connected with a clamping plate, the bottom surface of the clamping plate is symmetrically provided with a slide block, the slide block is movably connected with the slide groove, the top surface of the working platform is provided with a motor, the rotor end of the motor is connected with one end of the shaft rod, the other end of the shaft rod is mounted with a saw blade through a mounting mechanism, and the top surface of the working platform is provided with a cleaning mechanism.

[0007] Preferably, the cleaning mechanism includes a mounting seat, a sleeve, a connecting rod, an arc rod and a wire brush, the top surface of the working platform is provided with a mounting seat, the mounting seat is connected to the sleeve shaft, the top surface of the sleeve is fixedly connected to one end of the connecting rod, the other end of the connecting rod is fixedly connected to the lower end of the arc rod, the upper end of the arc rod is fixedly connected to a handle, the bottom side of the arc rod is provided with a dust cover, and the end of the dust cover close to the mounting seat is provided with a wire brush.

[0008] By adopting the above technical solution, when the saw blade is cutting, the arc rod is rotated downward by the handle to make the wire brush contact with the saw blade, and the debris on the saw blade is cleaned by the wire brush.

[0009] Preferably, a torsion spring is arranged in the sleeve.

[0010] By adopting the above technical solution, the sleeve is reset by the torsion spring.

[0011] Preferably, the mounting mechanism includes a groove one, a knob, and a clamping block. The groove one is axially symmetrically arranged on the end of the shaft rod close to the saw blade, a connecting block is axially symmetrically arranged on the side of the knob close to the shaft rod, and a clamping block is fixedly connected to the end of the connecting block away from the knob, and the clamping block is engaged with the groove one.

[0012] By adopting the above technical solution, the saw blade is installed on the shaft rod, and the knob fixes the saw blade through the engagement connection between the clamping block and the groove one.

[0013] Preferably, groove 2 is provided in groove 1, a spring is provided in groove 2, a protrusion 1 is fixedly intercepted at one end of the spring close to the card block, a card slot 2 is provided on one side of the card block close to groove 2, and the protrusion 1 is engaged and connected with the card slot 2.

[0014] By adopting the above technical solution, the clamping block is fixed and limited by the clamping connection between the protrusion 1 and the clamping slot 2.

[0015] Preferably, a card slot 1 is arranged in the groove 1, and a protrusion 2 is arranged on a side of the card block close to the card slot 1, and the protrusion 2 is engaged and connected with the card slot 1.

[0016] By adopting the above technical solution, the clamping block is fixed and limited by the clamping connection between the first clamping slot and the second protrusion.

[0017] Preferably, the warps of the through slot, the saw blade and the dust cover are transversely parallel.

[0018] The above technical solution ensures that during cutting, the dust cover can drive the wire brush to contact the saw blade, and the debris falls to the ground through the through slot.

[0019] Compared with the prior art, the utility model has the following beneficial effects: a sawing machine that is convenient for replacing saw blades can clean the debris on the saw blade through the cleaning mechanism when the saw blade is cutting, thereby reducing the impact of the debris on the saw blade, increasing the service life of the saw blade, and ensuring the cutting effect of the saw blade. The saw blade is connected to the shaft rod through the installation mechanism, the saw blade is first sleeved on the shaft rod, and then the knob is used to limit and fix the saw blade through the engagement connection between the clamping block and the groove 1, thereby preventing the saw blade from falling off during actual use. The operation is simple, the installation time is reduced, and the work efficiency is improved. The splint can be fine-tuned and roughly adjusted through the cooperation of the screw rod and the extension rod.

[0020] 1. When the saw blade is in use, pull the arc rod downward through the handle. The arc rod drives the dust cover and the wire brush to rotate downward, so that the wire brush contacts the saw blade. The saw blade is cleaned during cutting to prevent debris from affecting the cutting effect of the saw blade and reducing the service life of the saw blade. When the saw blade is not in use, release the handle, and the torsion spring drives the connecting rod, the arc rod and the dust cover to reset through the sleeve.

[0021] 2. When it is necessary to adjust the position of the splint to clamp the material, pull the fixed block upward to drive the plug block to move upward, so that the plug block is disconnected from the through hole, and then move the extension rod to roughly adjust the position of the splint. After the adjustment is completed, use the plug block to engage with the through hole downward to limit and fix the extension rod, and fine-tune the splint by rotating the screw. It is easy to adjust and can be adjusted quickly even if the adjustment range is large.

[0022] 3. When installing the saw blade, first put the saw blade on the shaft rod, and then insert the knob into the groove one to make the block engage with the groove one, rotate the knob to rotate the block, and the block squeezes the protrusion one to move in the groove two. When the slot one is aligned with the protrusion two, and the slot two is aligned with the protrusion one, the spring reset drives the protrusion one to engage with the slot two, and at the same time the block moves away from the spring to make the slot one engage with the protrusion two, and the saw blade is installed. When the saw blade needs to be removed, first press the knob in the direction of the saw blade to disengage the slot one from the protrusion two, and then rotate the knob to disengage the slot two from the protrusion one, and finally pull out the knob to complete the removal of the saw blade. The operation is simple, which reduces working time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 , is a schematic diagram of the top surface structure of the utility model;

[0024] Figure 2 , is a front sectional structural schematic diagram of the utility model;

[0025] Figure 3 , is a schematic diagram of the structure of the fixing plate and the extension rod of the utility model;

[0026] Figure 4, is a schematic diagram of the structure of the splint and the slider of the utility model;

[0027] Figure 5 , is a schematic diagram of the structure of the fixing seat and the arc rod of the utility model;

[0028] Figure 6 、For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0029] Figure 7 , is a structural schematic diagram of the shaft rod and groove of the utility model.

[0030] In the figure: 1. working platform; 2. through groove; 3. slide groove; 4. fixed plate; 5. extension rod; 6. through hole; 7. fixed block; 8. plug-in block; 9. movable plate; 10. screw rod; 11. clamping plate; 12. slider; 13. motor; 14. shaft rod; 15. saw blade; 16. mounting seat; 17. sleeve; 18. connecting rod; 19. arc rod; 20. handle; 21. dust cover; 22. wire brush; 23. groove one; 24. groove two; 25. slot one; 26. spring; 27. bump one; 28. knob; 29. ​​connecting block; 30. block; 31. slot two; 32. bump two. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-7 The utility model provides a technical solution: in order to solve the problem that the existing sawing machine mentioned in the background technology is to install the saw blade by the cooperation of bolts and nuts, and when the saw blade needs to be replaced, it is troublesome to disassemble, and the existing sawing machine is generally adjusted by a screw rod when adjusting the clamping plate. When the adjustment range is large, the screw rod adjustment speed is slow, which reduces the work efficiency. The following solution is disclosed. Please refer to the specific Figure 1-7 :

[0033] A sawing machine for conveniently replacing saw blades, comprising a working platform 1 and a fixed block 7, wherein the top surface of the working platform 1 is provided with a through groove 2 and a slide groove 3, a fixed plate 4 is provided on the front side of the top surface of the working platform 1, the fixed plate 4 is movably connected with an extension rod 5, and through holes 6 are evenly provided on the extension rod 5, an insert block 8 is symmetrically provided on the bottom surface of the fixed block 7, the insert block 8 movably penetrates the top surface of the fixed plate 4 and is connected with the through hole 6, an end of the extension rod 5 close to the through groove 2 is fixedly connected with a movable plate 9, a screw rod 10 is threadedly connected to the movable plate 9, an end of the screw rod 10 close to the through groove 2 is axially connected with a clamping plate 11, and the bottom of the clamping plate 11 A slider 12 is symmetrically arranged on the surface, and the slider 12 is movably connected to the slide groove 3. A motor 13 is arranged on the rear side of the top surface of the working platform 1. The rotor end of the motor 13 is connected to one end of the shaft rod 14. The other end of the shaft rod 14 is installed with a saw blade 15 through a mounting mechanism. A cleaning mechanism is arranged on the top surface of the working platform 1. The cleaning mechanism includes a mounting seat 16, a sleeve 17, a connecting rod 18, an arc rod 19 and a wire brush 22. A mounting seat 16 is arranged on the top surface of the working platform 1. The mounting seat 16 is axially connected to the sleeve 17. A torsion spring is arranged in the sleeve 17. The top surface of the sleeve 17 is fixedly connected to the connecting rod 1 The end of the connecting rod 18 is fixedly connected to the lower end of the arc rod 19, the upper end of the arc rod 19 is fixedly connected to the handle 20, the bottom side of the arc rod 19 is provided with a dust cover 21, and the end of the dust cover 21 close to the mounting seat 16 is provided with a wire brush 22. When it is necessary to adjust the position of the clamping plate 11 to clamp the material, the fixed block 7 is pulled upward to drive the plug block 8 to move upward, so that the plug block 8 is disconnected from the through hole 6, and then the extension rod 5 is moved to roughly adjust the position of the clamping plate 11. After the adjustment is completed, the plug block 8 is engaged with the through hole 6 downward to limit and fix the extension rod 5. The clamping plate 11 is fine-tuned by rotating the screw rod 10, and the adjustment is convenient. Even if the adjustment range is large, it can be adjusted quickly. When the saw blade 15 is in use, the arc rod 19 is pulled downward by the handle 20, and the arc rod 19 drives the dust cover 21 and the wire brush 22 to rotate downward, so that the wire brush 22 contacts with the saw blade 15. The saw blade 15 is cleaned when the saw blade 15 is cutting to prevent debris from affecting the cutting effect of the saw blade 15 and reducing the service life of the saw blade 15. When the saw blade 15 is not in use, the handle 20 is released, and the torsion spring drives the connecting rod 18, the arc rod 19 and the dust cover 21 to reset through the sleeve 17.

[0034] Furthermore, the mounting mechanism includes a groove 23, a knob 28, and a block 30. The end of the shaft 14 close to the saw blade 15 is axially symmetrically provided with a groove 23. The knob 28 is axially symmetrically provided with a connecting block 29 on the side close to the shaft 14. The end of the connecting block 29 away from the knob 28 is fixedly connected with a block 30. The block 30 is engaged with the groove 23. A groove 24 is provided in the groove 123. A spring 26 is provided in the groove 24. A protrusion 27 is fixedly intercepted at one end of the spring 26 close to the block 30. A groove 21 is provided on the side of the block 30 close to the groove 24. The protrusion 27 is engaged with the groove 21. A groove 25 is provided in the groove 123. A protrusion 22 is provided on the side of the block 30 close to the groove 125. The protrusion 22 is engaged with the groove 125. The through slot 2, the saw blade 15 and the warp of the dust cover 21 are horizontally parallel. The saw blade 15 is installed. When the saw blade 15 is firstly mounted on the shaft 14, the knob 28 is then inserted into the groove 1 23, so that the block 30 is engaged with the groove 1 23, and the knob 28 is rotated to rotate the block 30, so that the block 30 squeezes the protrusion 1 27 and moves into the groove 2 24. When the groove 1 25 is aligned with the protrusion 2 32, and the groove 2 31 is aligned with the protrusion 1 27, the spring 26 is reset to drive the protrusion 1 27 to engage with the groove 2 31, and the block 30 is moved away. The spring 26 engages the slot 1 25 with the protrusion 2 32 to complete the installation of the saw blade 15. When the saw blade 15 needs to be removed, the knob 28 is first pressed in the direction of the saw blade 15 to disengage the slot 1 25 from the protrusion 2 32, and then the knob 28 is rotated to disengage the slot 2 31 from the protrusion 1 27, and finally the knob 28 is pulled out to complete the removal of the saw blade 15. The operation is simple, the working time is reduced, and the working efficiency is improved.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sawing machine for conveniently replacing saw blades, comprising a working platform (1) and a fixed block (7), wherein the top surface of the working platform (1) is provided with a through groove (2) and a slide groove (3), a fixed plate (4) is provided on the front side of the top surface of the working platform (1), the fixed plate (4) is movably connected with an extension rod (5), and through holes (6) are evenly provided on the extension rod (5), an insert block (8) is symmetrically provided on the bottom surface of the fixed block (7), and the insert block (8) movably penetrates the top surface of the fixed plate (4) and is connected with the through hole (6), characterized in that: The end of the extension rod (5) near the through slot (2) is fixedly connected to a movable plate (9), the movable plate (9) is threadedly connected to a screw rod (10), the end of the screw rod (10) near the through slot (2) is axially connected to a clamping plate (11), the bottom surface of the clamping plate (11) is symmetrically provided with a slider (12), the slider (12) is movably connected to the slide slot (3), a motor (13) is provided on the rear side of the top surface of the working platform (1), the rotor end of the motor (13) is connected to one end of a shaft rod (14), the other end of the shaft rod (14) is installed with a saw blade (15) through a mounting mechanism, and a cleaning mechanism is provided on the top surface of the working platform (1).

2. A sawing machine with convenient saw blade replacement according to claim 1, characterized in that: The cleaning mechanism comprises a mounting seat (16), a sleeve (17), a connecting rod (18), an arc rod (19) and a wire brush (22); the top surface of the working platform (1) is provided with a mounting seat (16); the mounting seat (16) is axially connected to the sleeve (17); the top surface of the sleeve (17) is fixedly connected to one end of the connecting rod (18); the other end of the connecting rod (18) is fixedly connected to the lower end of the arc rod (19); the upper end of the arc rod (19) is fixedly connected to a handle (20); the bottom side of the arc rod (19) is provided with a dust cover (21); and the end of the dust cover (21) close to the mounting seat (16) is provided with a wire brush (22).

3. A sawing machine with convenient saw blade replacement according to claim 2, characterized in that: A torsion spring is arranged inside the sleeve (17).

4. The sawing machine with convenient saw blade replacement according to claim 1, characterized in that: The mounting mechanism comprises a groove (23), a knob (28) and a clamping block (30); the groove (23) is axially symmetrically arranged at one end of the shaft (14) close to the saw blade (15); a connecting block (29) is axially symmetrically arranged at one side of the knob (28) close to the shaft (14); the clamping block (30) is fixedly connected to one end of the connecting block (29) away from the knob (28); and the clamping block (30) is clamped and connected with the groove (23).

5. A sawing machine with convenient saw blade replacement according to claim 4, characterized in that: A second groove (24) is arranged in the first groove (23), a spring (26) is arranged in the second groove (24), a first protrusion (27) is fixedly intercepted at one end of the spring (26) close to the clamping block (30), a second clamping groove (31) is arranged at one side of the clamping block (30) close to the second groove (24), and the first protrusion (27) is clamped and connected with the second clamping groove (31).

6. A sawing machine with convenient saw blade replacement according to claim 4, characterized in that: A clamping slot one (25) is arranged in the groove one (23), and a protrusion two (32) is arranged on a side of the clamping block (30) close to the clamping slot one (25), and the protrusion two (32) is clamped and connected with the clamping slot one (25).

7. The sawing machine with convenient saw blade replacement according to claim 1, characterized in that: The warps of the through slot (2), the saw blade (15) and the dust cover (21) are transversely parallel.

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