Woodworking band sawing machine with protection device

Abstract

The utility model provides a woodworking band-sawing machine with a protection device, which relates to the technical field of woodworking band-sawing machines, and comprises a band-sawing machine main body, a saw blade is arranged on the inner side of the band-sawing machine main body, a placing plate is arranged above the band-sawing machine main body, and a protection mechanism is arranged above the placing plate on the outer side of the saw blade. An adjusting mechanism is arranged at the bottom end of the placing plate; the protection mechanism is arranged on the outer side of the saw blade, and an organ protection cover, a mounting cavity, a first servo motor, a threaded rod, a threaded sleeve, a movable cavity, a limiting groove, a limiting block and a movable rod of the protection mechanism are matched with one another, so that when the saw blade is not used, the organ protection cover can be driven to move downwards, and the saw blade is shielded through the organ protection cover; and the saw blade is protected, so that the saw blade is not prone to hurting workers when not used, and the safety of the band-sawing machine in use is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of woodworking band saws, in particular to a woodworking band saw with a protective device. Background Art

[0002] Woodworking band saw machine, a sawing machine that uses a ring-shaped endless band saw blade as a sawing tool, which is wound around two saw wheels to make a one-way continuous linear motion to saw wood. It is mainly composed of a bed, a saw wheel, an upper saw wheel lifting and tilting device, a band saw blade tensioning device, a saw blade guide device, a workbench, a guide plate, etc. The bed is made of cast iron or welded steel plates;

[0003] For example, application number CN210616827U discloses "a woodworking band saw machine" and specifically discloses: a dust suction device is provided on the workbench, and the dust suction device includes a dust suction port arranged on a limit plate, a first dust suction pipe connected to the dust suction port, a wood chip storage groove arranged on the workbench, a dust suction hole arranged on the side wall of the wood chip storage groove, a second dust suction pipe connected to the dust suction hole, a negative pressure pump connecting the first dust suction pipe and the second dust suction pipe, and a wood chip collection bag connected to the negative pressure pump, the wood chip collection bag is connected to the first dust suction pipe and the second dust suction pipe, and the band saw passes through the wood chip storage groove. However, in the above technology, when in use, the saw blades on the woodworking band saw machine have exposed parts. Since it is inconvenient to protect the woodworking band saw machine, the woodworking band saw machine is easy to cause accidental injuries to workers when not in use, thereby reducing the safety of the woodworking band saw machine when in use. Therefore, the utility model proposes a woodworking band saw machine with a protective device to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes a woodworking band saw machine with a protective device, which solves the problem in the above technology that when in use, the saw blades on the woodworking band saw machine have exposed parts. Since it is inconvenient to protect the woodworking band saw machine, the woodworking band saw machine is easy to cause accidental injuries to workers when not in use, thereby reducing the safety of the woodworking band saw machine when in use.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a woodworking band saw machine with a protective device, comprising a band saw machine body, a saw blade is installed on the inner side of the band saw machine body, a placement plate is installed above the band saw machine body, a protective mechanism is arranged above the placement plate outside the saw blade, and an adjustment mechanism is arranged at the bottom end of the placement plate;

[0006] The protective mechanism includes an accordion protective cover, an installation cavity, a first servo motor, a threaded rod, a threaded sleeve, an active cavity and a limiting structure. The accordion protective cover is installed on the inner side of the band saw machine body, and the installation cavity is installed at the front end of the band saw machine body. The first servo motor is installed at the top of the installation cavity, and a threaded rod is installed inside the installation cavity. The output end of the first servo motor is connected to one end of the threaded rod, and the outer side wall of the threaded rod is provided with a threaded sleeve, and the outer side wall of the threaded sleeve is installed with an active cavity, and the bottom end of the active cavity extends to the outside of the installation cavity, and the bottom end of the active cavity is connected to the top of the accordion protective cover.

[0007] Further improvements are: the limiting structure includes a limiting groove, a limiting block and a movable rod, the limiting groove is opened on one side of the installation cavity, the limiting block is arranged inside the limiting groove, one end of the limiting block is connected to one side of the movable cavity, the movable rod passes through both ends of the band saw machine body, and the bottom end of the movable rod is connected to both sides of the top of the accordion protective cover.

[0008] A further improvement is that the cross section of the limiting groove is larger than the cross section of the limiting block, and a sliding structure is formed between the limiting groove and the limiting block.

[0009] Further improvements are: the adjusting mechanism includes a rotating wheel, a first bevel gear, a second bevel gear, a worm, a worm wheel, a transmission gear, a transmission gear ring and a guide assembly, the rotating wheel is installed on one side of the band saw machine body, one end of the rotating wheel is installed with the first bevel gear, one side of the first bevel gear is meshed with the second bevel gear, one end of the second bevel gear is installed with a worm, the top of the worm is meshed with a worm wheel, the rear end of the worm wheel is coaxially installed with a transmission gear, the bottom of the transmission gear is meshed with a transmission gear ring, and the top of the transmission gear ring is connected to the bottom end of the placement plate.

[0010] A further improvement is that the guide assembly includes a fixed plate and a guide block, the fixed plate is installed at the front end above the band saw machine body, a groove is opened inside the fixed plate, a guide block is arranged inside the groove, and one end of the guide block is connected to one side of the transmission gear ring.

[0011] A further improvement is that the groove body is designed to be arc-shaped inside the fixed plate, and the shape of the groove body is the same as the shape of the transmission gear ring.

[0012] The beneficial effects of the utility model are as follows: by arranging a protective mechanism on the outer side of the saw blade, utilizing the mutual cooperation among the accordion protective cover, the mounting cavity, the first servo motor, the threaded rod, the threaded sleeve, the movable cavity, the limit groove, the limit block and the movable rod of the protective mechanism, when not in use, the accordion protective cover can be driven to move downward, and the saw blade can be shielded and protected by the accordion protective cover, so that the saw blade is not easy to cause harm to the staff when not in use, thereby greatly improving the safety of the band saw machine when in use; by arranging an adjustment mechanism under the placement plate, utilizing the mutual cooperation among the rotating wheel, the first bevel gear, the second bevel gear, the worm, the worm wheel, the transmission gear, the transmission gear ring, the fixed plate and the guide block of the adjustment mechanism, the angle of the placement plate can be adjusted, so that the woodworking band saw machine has a better effect when in use, thereby greatly improving the practicality of the woodworking band saw machine when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the side cross-sectional structure of the adjustment mechanism of the utility model;

[0015] Figure 3 For the utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0016] Figure 4 For the utility model Figure 2 A schematic diagram of the partially enlarged structure at B in the middle;

[0017] Figure 5 For the utility model Figure 2 Schematic diagram of the partial enlarged structure at point C in the middle.

[0018] Among them: 1. Band saw machine body; 2. Saw blade; 3. Placement plate; 4. Organ protective cover; 5. Installation cavity; 6. First servo motor; 7. Threaded rod; 8. Threaded sleeve; 9. Movable cavity; 10. Limiting groove; 11. Limiting block; 12. Movable rod; 13. Rotating wheel; 14. First bevel gear; 15. Second bevel gear; 16. Worm; 17. Worm wheel; 18. Transmission gear; 19. Transmission gear ring; 20. Fixed plate; 21. Guide block. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1 , 2As shown in Figures , 3, 4 and 5, this embodiment proposes a woodworking band saw machine with a protective device, including a band saw machine body 1, a saw blade 2 is installed on the inner side of the band saw machine body 1, a placement plate 3 is installed above the band saw machine body 1, a protective mechanism is arranged above the placement plate 3 outside the saw blade 2, and an adjustment mechanism is arranged at the bottom end of the placement plate 3.

[0021] The protective mechanism includes an accordion protective cover 4, an installation cavity 5, a first servo motor 6, a threaded rod 7, a threaded sleeve 8, an active cavity 9 and a limiting structure. The accordion protective cover 4 is installed on the inner side of the band saw machine body 1, and the installation cavity 5 is installed at the front end of the band saw machine body 1. The first servo motor 6 is installed at the top of the installation cavity 5, and a threaded rod 7 is installed inside the installation cavity 5. The output end of the first servo motor 6 is connected to one end of the threaded rod 7, and the outer wall of the threaded rod 7 is provided with a threaded sleeve 8. The outer wall of the threaded sleeve 8 is installed with an active cavity 9, and the bottom end of the active cavity 9 extends to the outside of the installation cavity 5. The bottom end of the active cavity 9 is connected to the top of the accordion protective cover 4. When in use, the first servo motor 6 is started to bring The movable threaded rod 7 rotates, thereby driving the threaded sleeve 8 to move, and then under the limitation of the limit groove 10 and the limit block 11, the threaded sleeve 8 drives the movable cavity 9 to move, and then under the limitation of the movable rod 12, the movable cavity 9 drives the accordion protective cover 4 to move upward, and then the accordion protective cover 4 is folded and contracted to expose the saw blade 2. After cutting, start the first servo motor 6 to reverse it, drive the accordion protective cover 4 to move downward, unfold the accordion protective cover 4, protect the saw blade 2 with the accordion protective cover 4, and shield the saw blade 2 with the accordion protective cover 4, and protect it, so that the saw blade 2 is not easy to cause harm to the staff when not in use, thereby greatly improving the safety of the band saw machine when in use.

[0022] The limiting structure includes a limiting groove 10, a limiting block 11 and a movable rod 12. The limiting groove 10 is opened on one side of the installation cavity 5. The limiting block 11 is arranged inside the limiting groove 10. One end of the limiting block 11 is connected to one side of the movable cavity 9. The movable rod 12 passes through both ends of the band saw machine body 1. The bottom end of the movable rod 12 is connected to both sides of the top of the accordion protective cover 4. The cross-section of the limiting groove 10 is larger than the cross-section of the limiting block 11. A sliding structure is formed between the limiting groove 10 and the limiting block 11. When in use, the limiting groove 10 and the limiting block 11 cooperate with each other to limit the movable cavity 9 when it moves, so that the movable cavity 9 is more stable when it moves.

[0023] The adjusting mechanism includes a rotating wheel 13, a first bevel gear 14, a second bevel gear 15, a worm 16, a worm wheel 17, a transmission gear 18, a transmission gear ring 19 and a guide assembly. The rotating wheel 13 is installed on one side of the band saw machine body 1, and the first bevel gear 14 is installed at one end of the rotating wheel 13. The second bevel gear 15 is meshed on one side of the first bevel gear 14. A worm 16 is installed at one end of the second bevel gear 15. The worm wheel 17 is meshed above the worm 16. The rear end of the worm wheel 17 is coaxially installed with a transmission gear 18. The transmission gear 18 is meshed with a transmission gear ring 19 below. The top of the transmission gear ring 19 is connected to the bottom end of the placement plate 3. When in use, the rotating wheel 13 is rotated to drive the first bevel gear 14 to rotate. A bevel gear 14 rotates. Since the first bevel gear 14 and the second bevel gear 15 are meshed with each other, the second bevel gear 15 is used to drive the worm 16 to rotate. Since the worm 16 and the worm wheel 17 are meshed with each other, and the worm wheel 17 and the transmission gear 18 are coaxially connected, the worm wheel 17 is used to drive the transmission gear 18 to rotate. Since the transmission gear 18 and the transmission gear ring 19 are meshed with each other, under the limitation of the groove body and the guide block 21, the transmission gear 18 is used to drive the transmission gear ring 19 to move and then drive the placement plate 3 to move. The placement plate 3 is adjusted to an appropriate angle, so that the woodworking band saw machine has a better effect when used, thereby greatly improving the practicality of the woodworking band saw machine when used.

[0024] The guide assembly includes a fixed plate 20 and a guide block 21. The fixed plate 20 is installed at the front end above the band saw machine body 1. A groove is opened inside the fixed plate 20. A guide block 21 is arranged inside the groove. One end of the guide block 21 is connected to one side of the transmission gear ring 19. The groove is designed in an arc shape inside the fixed plate 20. The shape of the groove is the same as that of the transmission gear ring 19. When in use, the transmission gear ring 19 can be guided when moving by utilizing the mutual cooperation between the groove and the guide block 21, so that the transmission gear ring 19 is more stable when moving.

[0025] Working principle: the staff first starts the first servo motor 6 to drive the threaded rod 7 to rotate, thereby driving the threaded sleeve 8 to move, and then under the limit of the limit groove 10 and the limit block 11, the threaded sleeve 8 is used to drive the movable cavity 9 to move, and then under the limit of the movable rod 12, the movable cavity 9 is used to drive the accordion protective cover 4 to move upward, and then the accordion protective cover 4 is folded and contracted to expose the saw blade 2, and then the rotating wheel 13 is turned to drive the first bevel gear 14 to rotate. Since the first bevel gear 14 and the second bevel gear 15 are meshed with each other, the second bevel gear 15 is used to drive the worm 16 to rotate. Since the worm 16 and the worm wheel 17 are meshed with each other, and the worm The wheel 17 is coaxially connected with the transmission gear 18, so the worm gear 17 is used to drive the transmission gear 18 to rotate. Since the transmission gear 18 and the transmission gear ring 19 are meshed with each other, under the limit of the groove body and the guide block 21, the transmission gear 18 is used to drive the transmission gear ring 19 to move and then drive the placement plate 3 to move. The placement plate 3 is adjusted to an appropriate angle. At this time, the material to be processed is placed above the placement plate 3, the band saw machine body 1 is started, and the saw blade 2 is used to cut the material. After cutting, the first servo motor 6 is started to reverse it, driving the accordion protective cover 4 to move downward, the accordion protective cover 4 is unfolded, and the accordion protective cover 4 is used to protect the saw blade 2.

[0026] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A woodworking band saw machine with a protective device, comprising a band saw machine body (1), characterized in that: A saw blade (2) is installed on the inner side of the band saw machine body (1), a placement plate (3) is installed above the band saw machine body (1), a protective mechanism is arranged above the placement plate (3) outside the saw blade (2), and an adjustment mechanism is arranged at the bottom end of the placement plate (3); The protective mechanism comprises an accordion protective cover (4), an installation cavity (5), a first servo motor (6), a threaded rod (7), a threaded sleeve (8), an active cavity (9) and a limiting structure. The accordion protective cover (4) is installed on the inner side of a band saw machine body (1). The installation cavity (5) is installed on the front end of the band saw machine body (1). The first servo motor (6) is installed at the top of the installation cavity (5). The threaded rod (7) is installed inside the installation cavity (5). The output end of the first servo motor (6) is connected to one end of the threaded rod (7). The outer wall of the threaded rod (7) is provided with a threaded sleeve (8). The outer wall of the threaded sleeve (8) is provided with an active cavity (9). The bottom end of the active cavity (9) extends to the outside of the installation cavity (5). The bottom end of the active cavity (9) is connected to the top of the accordion protective cover (4).

2. A woodworking band saw machine with a protective device according to claim 1, characterized in that: The limiting structure comprises a limiting groove (10), a limiting block (11) and a movable rod (12); the limiting groove (10) is opened on one side of the installation cavity (5); a limiting block (11) is arranged inside the limiting groove (10); one end of the limiting block (11) is connected to one side of the movable cavity (9); the movable rod (12) passes through both ends of the band saw machine body (1); and the bottom end of the movable rod (12) is connected to both sides of the top of the accordion protective cover (4).

3. A woodworking band saw machine with a protective device according to claim 2, characterized in that: The cross section of the limiting groove (10) is larger than the cross section of the limiting block (11), and a sliding structure is formed between the limiting groove (10) and the limiting block (11).

4. A woodworking band saw machine with a protective device according to claim 1, characterized in that: The adjusting mechanism comprises a rotating wheel (13), a first bevel gear (14), a second bevel gear (15), a worm (16), a worm wheel (17), a transmission gear (18), a transmission gear ring (19) and a guide assembly. The rotating wheel (13) is mounted on one side of the band saw machine body (1). The first bevel gear (14) is mounted on one end of the rotating wheel (13). The second bevel gear (15) is meshed on one side of the first bevel gear (14). The worm (16) is mounted on one end of the second bevel gear (15). The worm wheel (17) is meshed above the worm (16). The transmission gear (18) is coaxially mounted at the rear end of the worm wheel (17). The transmission gear (18) is meshed below the transmission gear (18). The top end of the transmission gear ring (19) is connected to the bottom end of the placement plate (3).

5. A woodworking band saw machine with a protective device according to claim 4, characterized in that: The guide assembly comprises a fixed plate (20) and a guide block (21); the fixed plate (20) is mounted on the front end above the band saw machine body (1); a groove is provided inside the fixed plate (20); a guide block (21) is provided inside the groove; one end of the guide block (21) is connected to one side of the transmission gear ring (19).

6. A woodworking band saw machine with a protective device according to claim 5, characterized in that: The groove body is designed to be arc-shaped inside the fixed plate (20), and the shape of the groove body is the same as the shape of the transmission gear ring (19).

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