Saw blade protection device of woodworking band sawing machine

Abstract

The utility model discloses a saw blade protection device of a woodworking band-sawing machine, relates to the technical field of saw blade protection of band-sawing machines, aims to solve the technical problem that a saw blade is also in an exposed state when the current woodworking band-sawing machine does not work, and has certain potential safety hazards, and comprises a rotating mechanism and a protection mechanism arranged on the rotating mechanism, the rotating mechanism comprises a base plate, a supporting plate is mounted at the upper end of the base plate, a top plate is mounted at the upper end of the supporting plate, first rotating shafts are symmetrically and rotatably mounted between the base plate and the top plate, connecting rods are mounted on the first rotating shafts, the protection mechanism comprises a mounting plate, and a lifting groove is formed in the mounting plate. The protective device has a structure for protecting the saw blade, and the saw blade of the band-sawing machine can be wrapped by combining the left and right U-shaped protective plates, so that the saw blade can be prevented from being damaged due to collision, a worker can be prevented from touching the saw blade carelessly, and the safety of the band-sawing machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blade protection for band saw machines, and more particularly to a saw blade protection device for a woodworking band saw machine. Background Art

[0002] Woodworking band saw is a commonly used equipment in the woodworking industry, mainly used for cutting, processing and carving wood. Woodworking band saw uses a ring-shaped endless band saw blade as a saw tool, which is wrapped around two saw wheels and makes unidirectional continuous linear motion to saw wood. Band saws are widely used in the wood industry.

[0003] When a woodworking band saw is in operation, the wood passes through the saw blade to saw the wood. When not in operation, the saw blade is also exposed, making the saw blade vulnerable to collision and damage, and also easily causing harm to workers passing by in the factory, posing certain safety hazards. In view of this, a saw blade protection device for a woodworking band saw is proposed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a saw blade protection device for a woodworking band saw machine to solve the technical problem that the saw blade of the current woodworking band saw machine is also exposed when not working, which poses certain safety hazards.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a saw blade guard device for a woodworking band saw, comprising a rotating mechanism and a guard mechanism mounted on the rotating mechanism, the rotating mechanism comprising a base plate, a support plate mounted on the upper end of the base plate, a top plate mounted on the upper end of the support plate, a first rotating shaft mounted symmetrically between the base plate and the top plate, and a connecting rod mounted on the first rotating shaft;

[0006] The protective mechanism includes a mounting plate, a lifting groove is provided on the mounting plate, a lifting block is slidably installed in the lifting groove, a second rotating shaft is rotatably installed on the upper end of the mounting plate, a driven pulley and a driving bevel gear are installed on the second rotating shaft, the first rotating shaft extends to the top of the top plate and a driving pulley is installed, and a transmission belt is provided between the driving pulley and the driven pulley.

[0007] Preferably, a third rotating shaft and a fourth rotating shaft are rotatably installed at the upper position of the front end of the mounting plate, a driven bevel gear and a first half gear are installed on the third rotating shaft, the driving bevel gear is meshed and connected with the driven bevel gear, the fourth rotating shaft is located below the third rotating shaft, a first driving gear is installed at the front end of the fourth rotating shaft, and the first driving gear is meshed and connected with the first half gear.

[0008] Preferably, there are three lifting blocks in total, and the front ends of the two lifting blocks located above are symmetrically mounted with a fifth rotating shaft and a sixth rotating shaft, the front end of the fifth rotating shaft is mounted with a second half gear, the front end of the sixth rotating shaft is mounted with a second driving gear, the second half gear is meshed with the second driving gear, and the front end of the lifting block located below is rotatably mounted with a seventh rotating shaft, and the front end of the seventh rotating shaft is provided with a mounting wheel.

[0009] Preferably, a first folding rod is installed on the fourth rotating shaft and the sixth rotating shaft, a second folding rod is installed on the fifth rotating shaft and the seventh rotating shaft, and the first folding rod and the second folding rod adjacent to each other are rotatably connected.

[0010] Preferably, the first half gear and the second half gear both include a toothed portion and a toothless portion, and mounting rods are welded to the toothless portions of the first half gear and the second half gear and the mounting wheel, and a U-shaped protective plate is installed at the end of the mounting rod.

[0011] Preferably, the mounting rod includes a connecting portion, an arc rod portion, a folding rod portion and a straight rod portion, the arc rod portion is bent ninety degrees and arranged at the end of the connecting portion, the folding rod portion is bent ninety degrees and arranged at the end of the arc rod portion, and the straight rod portion is arranged at the end of the folding rod portion.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The present invention designs a first rotating shaft and a U-shaped protective plate structure. The U-shaped protective plate can be rotated and adjusted in position by the first rotating shaft. When the left and right sets of U-shaped protective plates are combined, a box structure with upper and lower openings can be formed. When the band saw machine is not working, the U-shaped protective plate can wrap the saw blade of the band saw machine inside, thereby protecting the saw blade of the band saw machine, preventing the saw blade from being damaged by collision and preventing injuries to workers, improving the safety of the band saw machine, and solving the technical problem that the saw blade of the current woodworking band saw machine is also exposed when not working, which has certain safety hazards.

[0014] 2. The utility model also designs a mounting rod structure. The arc rod portion and the folding rod portion of the mounting rod are arranged to facilitate the folding of the U-shaped protective plate, so that the mounting rod will not interfere with the storage and unfolding of the U-shaped protective plate. After the U-shaped protective plate is folded, it is located at the top, which can free up the space below. When the band saw machine is working, the wood can be conveniently passed through the space below the U-shaped protective plate by the saw blade for sawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the protective mechanism structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the protection mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the U-shaped protective plate structure of the utility model;

[0019] Figure 5 This is a schematic diagram of a usage state of the utility model.

[0020] 210. The first gear is the gear of the transmission gear. 211. The second gear is the gear of the transmission gear. 212. The first gear is the gear of the transmission gear. 213. The second gear is the gear of the transmission gear. 214. The third gear is the gear of the transmission gear. 215. The second gear is the gear of the transmission gear. 216. The second gear is the gear of the transmission gear. 217. The first gear is the gear of the transmission gear. 218. The second gear is the gear of the transmission gear. DETAILED DESCRIPTION

[0021] like Figures 1 to 5 As shown, the present invention relates to a saw blade guard device for a woodworking band saw machine, comprising a rotating mechanism 100 and a guard mechanism 200 mounted on the rotating mechanism 100. The rotating mechanism 100 comprises a base plate 101, a support plate 102 is mounted on the upper end of the base plate 101, a top plate 103 is mounted on the upper end of the support plate 102, a first rotating shaft 104 is symmetrically mounted between the base plate 101 and the top plate 103 for rotation, and a connecting rod 106 is mounted on the first rotating shaft 104;

[0022] The guard mechanism 200 includes a mounting plate 201, which is provided with a lifting slot 202, in which a lifting block 203 is slidably mounted. A second rotating shaft 204 is rotatably mounted on the upper end of the mounting plate 201, and a driven pulley 205 and a driving bevel gear 206 are mounted on the second rotating shaft 204. The first rotating shaft 104 extends above the top plate 103 and is provided with a driving pulley 105. A transmission belt is provided between the driving pulley 105 and the driven pulley 205. The present invention provides a structure for protecting the saw blade, which allows continuous drive when the first rotating shaft 104 rotates, so that multiple U-shaped guard plates 211 remain in a vertical state. The left and right sets of U-shaped guard plates 211 can be combined to wrap the saw blade of the band saw machine, thereby protecting the saw blade, preventing damage caused by collisions, and preventing workers from accidentally touching the saw blade, thereby improving the safety of the band saw machine.

[0023] Specifically, a third rotating shaft 207 and a fourth rotating shaft are rotatably mounted at the upper front end of the mounting plate 201. A driven bevel gear 208 and a first half gear 209 are mounted on the third rotating shaft 207. The driving bevel gear 206 is meshed and connected to the driven bevel gear 208. The fourth rotating shaft is located below the third rotating shaft 207. A first driving gear 212 is mounted on the front end of the fourth rotating shaft. The first driving gear 212 is meshed and connected to the first half gear 209. When the second rotating shaft 204 rotates, the driving bevel gear 206 can drive the driven bevel gear 208 to rotate the third rotating shaft 207. When the third rotating shaft 207 rotates, the first half gear 209 can drive the first driving gear 212 to rotate the fourth rotating shaft.

[0024] Furthermore, there are three lifting blocks 203. The front ends of the two upper lifting blocks 203 are symmetrically mounted with a fifth rotating shaft 213 and a sixth rotating shaft 214. A second half gear 215 is mounted on the front end of the fifth rotating shaft 213, and a second driving gear 216 is mounted on the front end of the sixth rotating shaft 214. The second half gear 215 is meshed with the second driving gear 216. The front end of the lower lifting block 203 is rotatably mounted with a seventh rotating shaft, and a mounting wheel is provided at the front end of the seventh rotating shaft. The second half gear 215 can drive the second driving gear 216 to rotate the first folding rod 217 and the second folding rod 218, causing the lower lifting block 203 to rise or fall, thereby adjusting the height of the U-shaped protective plate 211.

[0025] It is worth noting that first folding rods 217 are mounted on the fourth and sixth rotating shafts 214, and second folding rods 218 are mounted on the fifth and seventh rotating shafts. The first and second folding rods 217, 218 are rotatably connected to each other. The first and second folding rods 217, 218 are used to connect the lifting blocks 203, allowing the lifting blocks 203 to be adjusted in height.

[0026] It's worth noting that both the first and second half gears 209 and 215 have toothed and untoothed portions. Mounting rods 210 are welded to the untoothed portions of the first and second half gears 209 and 215, as well as to the mounting wheels. A U-shaped guard plate 211 is attached to the end of the mounting rods 210. This arrangement of the half gears not only drives the rotation of the other gears but also allows for mounting the mounting rods 210, allowing for adjustment of the angle of the U-shaped guard plate 211.

[0027] It is noteworthy that the mounting rod 210 includes a connecting portion 2101, a curved rod portion 2102, a folding rod portion 2103, and a straight rod portion 2104. The curved rod portion 2102 is bent 90 degrees and is disposed at the end of the connecting portion 2101. The folding rod portion 2103 is bent 90 degrees and is disposed at the end of the curved rod portion 2102. The straight rod portion 2104 is disposed at the end of the folding rod portion 2103. The arrangement of the curved rod portion 2102 and the folding rod portion 2103 of the mounting rod 210 facilitates the folding of the U-shaped protective plate 211, so that the mounting rod 210 does not interfere with the storage and deployment of the U-shaped protective plate 211. When the U-shaped protective plate 211 is folded and located at the top, the space below can be freed up, so that wood can be conveniently passed through the space below the U-shaped protective plate 211 for sawing work using a saw blade.

[0028] Working principle: This embodiment provides a saw blade protection device for a woodworking band saw machine. When in use, the utility model is installed on the machine tool of the band saw machine. When the band saw machine is not working, the protection mechanism 200 is manually rotated in conjunction with the first rotating shaft 104. When rotating, the driving pulley 105 can drive the driven pulley 205 to rotate the second rotating shaft 204, the driving bevel gear 206 can drive the driven bevel gear 208 to rotate the third rotating shaft 207, the first half gear 209 can drive the first driving gear 212 to rotate the fourth rotating shaft, and under the action of the first folding rod 217 and the second folding rod 218, the first half gear 209 can drive the first driving gear 212 to rotate the fourth rotating shaft. The fifth rotating shaft 213 is rotated so that the second half gear 215 can drive the second driving gear 216 to rotate the sixth rotating shaft 214. While rotating and adjusting, the lifting block 203 will descend to descend the U-shaped protective plate 211. The first rotating shaft 104 is rotated and the U-shaped protective plate 211 is rotated and descended at the same time, so that multiple U-shaped protective plates 211 are kept in a vertical state. The left and right groups of U-shaped protective plates 211 can be combined to wrap the saw blade of the band saw machine, thereby protecting the saw blade, preventing damage to the saw blade caused by collision, and preventing workers from accidentally touching the saw blade, thereby improving the safety of the band saw machine.

[0029] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A saw blade protection device for a woodworking band saw, characterized in that: The invention comprises a rotating mechanism (100) and a protective mechanism (200) mounted on the rotating mechanism (100), wherein the rotating mechanism (100) comprises a base plate (101), a support plate (102) is mounted on the upper end of the base plate (101), a top plate (103) is mounted on the upper end of the support plate (102), a first rotating shaft (104) is symmetrically mounted between the base plate (101) and the top plate (103), and a connecting rod (106) is mounted on the first rotating shaft (104); The protection mechanism (200) comprises a mounting plate (201), a lifting groove (202) is provided on the mounting plate (201), a lifting block (203) is slidably installed in the lifting groove (202), a second rotating shaft (204) is rotatably installed on the upper end of the mounting plate (201), a driven pulley (205) and a driving bevel gear (206) are installed on the second rotating shaft (204), the first rotating shaft (104) extends to the top of the top plate (103) and is installed with a driving pulley (105), and a transmission belt is provided between the driving pulley (105) and the driven pulley (205).

2. The saw blade guard of a woodworking band saw according to claim 1, characterized in that: A third rotating shaft (207) and a fourth rotating shaft are rotatably mounted at an upper position of the front end of the mounting plate (201); a driven bevel gear (208) and a first half gear (209) are mounted on the third rotating shaft (207); the driving bevel gear (206) is meshed and connected to the driven bevel gear (208); the fourth rotating shaft is located below the third rotating shaft (207); a first driving gear (212) is mounted at the front end of the fourth rotating shaft; the first driving gear (212) is meshed and connected to the first half gear (209).

3. The saw blade protection device of a woodworking band saw according to claim 2, characterized in that: There are three lifting blocks (203) in total. The front ends of the two lifting blocks (203) located above are symmetrically rotatably mounted with a fifth rotating shaft (213) and a sixth rotating shaft (214). The front end of the fifth rotating shaft (213) is mounted with a second half gear (215). The front end of the sixth rotating shaft (214) is mounted with a second driving gear (216). The second half gear (215) is meshedly connected with the second driving gear (216). The front end of the lifting block (203) located below is rotatably mounted with a seventh rotating shaft. The front end of the seventh rotating shaft is provided with a mounting wheel.

4. The saw blade guard of a woodworking band saw according to claim 3, characterized in that: The fourth rotating shaft and the sixth rotating shaft (214) are equipped with a first folding rod (217), the fifth rotating shaft (213) and the seventh rotating shaft are equipped with a second folding rod (218), and the upper and lower adjacent first folding rods (217) and second folding rods (218) are rotatably connected.

5. The saw blade guard of a woodworking band saw according to claim 4, characterized in that: The first half gear (209) and the second half gear (215) both include a toothed portion and a toothless portion. The toothless portions of the first half gear (209) and the second half gear (215) and the mounting wheel are both welded with mounting rods (210), and the ends of the mounting rods (210) are mounted with U-shaped protective plates (211).

6. The saw blade guard of a woodworking band saw according to claim 5, characterized in that: The mounting rod (210) comprises a connecting portion (2101), an arc rod portion (2102), a folding rod portion (2103) and a straight rod portion (2104); the arc rod portion (2102) is bent ninety degrees and arranged at the end of the connecting portion (2101); the folding rod portion (2103) is bent ninety degrees and arranged at the end of the arc rod portion (2102); and the straight rod portion (2104) is arranged at the end of the folding rod portion (2103).

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