Band saw blade cutting rear end traction device

Abstract

The utility model discloses a band saw blade cutting rear end traction device which comprises a first roller assembly, a second roller assembly and a third roller assembly, the first roller assembly comprises a pressing roller and a motor, the motor drives the pressing roller to rotate, the second roller assembly comprises a pressing roller, two second side plates and two first sliding blocks, and the first sliding blocks can slide up and down along the second side plates. The two ends of the pressing rollers are rotationally connected with the first sliding blocks correspondingly, the two pressing rollers are arranged up and down, the band saw blade is pressed between the two pressing rollers, the third roller assembly is located above the second roller assembly and comprises at least one pressing wheel, the pressing wheels abut against the pressing rollers of the second roller assembly, and the pressing wheels are located above the band saw blade. The pressing wheel of the third roller assembly abuts against the pressing roller of the second roller assembly, so that pressure borne by the pressing roller of the second roller assembly is correspondingly located above the band saw blade, bearings at the two ends of the pressing roller are not stressed, and the service life of the bearings is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of band saw blade processing equipment, and more specifically, to a band saw blade cutting rear end traction device. Background Technology

[0002] In the existing production process, band saw blades are made by laser cutting teeth from steel strips. During the cutting process, both the front and rear ends of the cut need to be tractioned. The existing traction device uses two pressure rollers arranged vertically to press and pull the blades. Since the two ends of the pressure rollers are connected by bearings, the pressure on the pressure rollers and the reaction force of the band saw blades can cause wear on the bearings at both ends of the pressure rollers, resulting in frequent bearing replacements. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art, improve the service life of the upper pressure roller bearing, and provide a traction device for the rear end of a band saw blade cutter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a band saw blade cutting rear end traction device, including a first roller assembly, a second roller assembly, and a third roller assembly. The first roller assembly includes a pressure roller and a motor, the motor driving the pressure roller to rotate. The second roller assembly includes a pressure roller, two second side plates, and two first sliders. The first sliders can slide up and down along the second side plates. The two ends of the pressure roller are rotatably connected to a first slider, and the two pressure rollers are arranged vertically, pressing the band saw blade between the two pressure rollers. The third roller assembly is located above the second roller assembly. The third roller assembly includes at least one pressure roller, which presses against the pressure roller of the second roller assembly. The pressure roller is located above the band saw blade.

[0006] Furthermore, the pressure roller includes a first pressure section and a second pressure section, the diameter of the first pressure section is larger than that of the second pressure section, the first pressure section contacts the band saw blade, and the teeth of the band saw blade extend out of the first pressure section.

[0007] Furthermore, the band saw blade includes a waste portion located within the range of the second pressing section. The second pressing section is provided with pressure rings, and two pressure rings clamp the waste portion of the band saw blade.

[0008] Furthermore, the second side plate is provided with a first sliding groove, and first guide grooves are opened on both sides of the first sliding groove. The first slider is located in the first sliding groove, and the first slider is provided with a first guide block corresponding to the first guide groove.

[0009] Furthermore, the second roller assembly includes guide plates, two of which are arranged in parallel with a gap between them. The guide plates extend along the axial direction of the pressure roller, forming a guide channel between the two guide plates. The third roller assembly includes a pressing component and an adjusting component. The adjusting component includes a second slider and a threaded rod. The second slider is slidable along the guide channel, and the threaded rod is threadedly connected to the second slider and passes through the second slider. The pressing component includes a mounting base, and the lower end of the threaded rod is connected to the mounting base via a bearing. The pressure roller is rotatably mounted on the mounting base.

[0010] Furthermore, the second roller assembly includes a top plate, the top plate is mounted on the upper end of the second side plate, and the guide plate is fixedly mounted on the upper end surface of the top plate.

[0011] Furthermore, there are two pressure rollers, which are symmetrically arranged and both of them abut against the outer wall of the pressure roller of the second roller assembly.

[0012] Furthermore, the second slider is provided with second guide grooves on both sides, the second guide grooves are slidably connected to the guide plate, and the second slider is mounted with bolts, the bolts being able to fix the second slider and the guide plate.

[0013] Furthermore, the mounting base is provided with a guide rod that extends toward the second slider and passes through the second slider.

[0014] The beneficial effects of this utility model are:

[0015] This invention uses the pressure roller of the third roller assembly to press against the pressure roller of the second roller assembly, so that the pressure on the pressure roller of the second roller assembly is located above the band saw blade. The bearings at both ends of the pressure roller are not stressed, which reduces the friction loss of the pressure roller bearings, increases the bearing life, and makes the pressure of the band saw blade more stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment.

[0017] Figure 2 This is a front view of this embodiment.

[0018] Figure 3 This is a side sectional view of this embodiment.

[0019] Figure 4 This is another side sectional view of this embodiment.

[0020] Reference numerals: 1. First roller assembly; 11. First side plate; 12. Motor; 2. Second roller assembly; 21. Second side plate; 211. First sliding groove; 2111. First guide groove; 22. First slider; 221. First guide block; 23. Top plate; 24. Guide plate; 241. Guide channel; 3. Third roller assembly; 31. Pressing assembly; 311. Pressure roller; 312. Mounting base; 313. Guide rod; 32. Adjusting assembly; 321. Second slider; 3211. Second guide groove; 322. Threaded rod; 323. Bolt; 101. Pressure roller; 1011. First pressing part; 1012. Second pressing part; 1013. Pressure ring; 102. Band saw blade. Detailed Implementation

[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1-4 As shown, this embodiment discloses a band saw blade cutting rear end traction device, including a first roller assembly 1, a second roller assembly 2, and a third roller assembly 3. The first roller assembly 1 includes two first side plates 11, a pressure roller 101, and a motor 12. The two ends of the pressure roller 101 are rotatably connected to the two first side plates 11 through bearings. The motor 12 drives the pressure roller 101 to rotate. When the pressure roller 101 of the second roller assembly 2 and the pressure roller 101 of the first roller assembly 1 clamp the band saw blade 102, the pressure roller 101 of the first roller assembly 1 drives the band saw blade 102 to pull and drives the pressure roller 101 of the second roller assembly 2 to rotate.

[0023] The second roller assembly 2 includes a pressure roller 101, two second side plates 21, and two first sliders 22. The second roller assembly 2 is located above the first roller assembly 1. The second side plates 21 are fixedly installed above the first side plates 11. The first sliders 22 can slide up and down along the second side plates 21. The two ends of the pressure roller 101 are rotatably connected to one of the first sliders 22 through bearings. The second side plates 21 are provided with a first sliding groove 211. The two sides of the first sliding groove 211 are provided with first guide grooves 2111. The first sliders 22 are located in the first sliding groove 211. The first sliders 22 are provided with first guide blocks 221 corresponding to the first guide grooves 2111. The two ends of the pressure roller 101 of the second roller assembly 2 remain in a movable state. The pressure on the bearings at the two ends of the pressure roller 101 is reduced, which can extend the bearing life. The two pressure rollers 101 are arranged vertically, and the band saw blade 102 is pressed between the two pressure rollers 101.

[0024] The band saw blade 102 includes a waste portion. After the band saw blade 102 is laser-cut to produce teeth, unwanted waste strips are generated. The pressure roller 101 includes a first pressure part 1011 and a second pressure part 1012. The diameter of the first pressure part 1011 is larger than that of the second pressure part 1012. The first pressure part 1011 contacts the band saw blade 102. The teeth of the band saw blade 102 extend out of the first pressure part 1011. The teeth of the band saw blade 102 and the waste portion are not clamped by the two pressure rollers 101. The waste portion is located within the range of the second pressure part 1012. The second pressure part 1012 is provided with pressure rings 1013. The two pressure rings 1013 clamp the waste portion of the band saw blade 102. The teeth of the band saw blade 102 remain suspended. The two pressure rings 1013 can support the waste portion of the band saw blade 102 and prevent the waste portion from getting stuck between the pressure roller 101 and the first side plate 11.

[0025] The third roller assembly 3 is located above the second roller assembly 2. The second roller assembly 2 includes a top plate 23 and a guide plate 24. A first sliding groove 211 opens towards the upper end face of the second side plate 21. A first slider 22 can be installed from above the second side plate 21. The top plate 23 is installed at the upper end of the second side plate 21, and the top plate 23 closes the upper end opening of the first sliding groove 211. The guide plate 24 is fixedly installed on the upper end face of the top plate 23. There are two guide plates 24, which are arranged in parallel with a gap between them. The guide plates 24 extend along the axial direction of the pressure roller 101. A guide channel 241 is formed between the guide plates 24. The third roller assembly 3 includes a pressing assembly 31 and an adjusting assembly 32. The adjusting assembly 32 includes a second slider 321 and a threaded rod 322. The second slider 321 can slide along the guide channel 241. The second guide grooves 3211 are provided on both sides of the second slider 321. The second guide grooves 3211 are slidably connected to the guide plates 24. The position of the pressure roller 311 pressing the pressure roller 101 can be adjusted by the sliding cooperation between the second slider 321 and the guide plates 24, which can adapt to band saw blades 102 of different widths.

[0026] The second slider 321 is mounted with bolts 323, which can fix the second slider 321 and the guide plate 24. The threaded rod 322 is threadedly connected to the second slider 321 and passes through the second slider 321. The pressing assembly 31 includes a mounting base 312. The lower end of the threaded rod 322 is connected to the mounting base 312 through a bearing. By rotating the threaded rod 322, the mounting base 312 can be moved closer to or away from the second slider 321. When the mounting base 312 moves away from the second slider 321, the pressure roller 311 can press against the pressure roller 101 and adjust the pressure. The mounting base 312 is provided with a guide rod 313, which extends toward the second slider 321 and passes through the second slider 321. The guide rod 313 provides guidance for the movement of the mounting base 312.

[0027] The pressure roller 311 is rotatably mounted on the mounting base 312. The third roller assembly 3 is provided with two pressure rollers 311. The pressure rollers 311 press against the pressure roller 101 of the second roller assembly 2. The two pressure rollers 311 are symmetrically arranged and both pressure rollers 311 press against the outer wall of the pressure roller 101 of the second roller assembly 2. The pressure rollers 311 are located above the band saw blade 102. Different pressure rollers 311 can be replaced according to the width of different band saw blades 102 to make the pressure on the band saw blade 102 more uniform.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A band saw blade cutting rear end traction device, characterized in that, The assembly includes a first roller assembly (1), a second roller assembly (2), and a third roller assembly (3). The first roller assembly (1) includes a pressure roller (101) and a motor (12). The motor (12) drives the pressure roller (101) to rotate. The second roller assembly (2) includes a pressure roller (101), two second side plates (21), and two first sliders (22). The first sliders (22) can slide up and down along the second side plates (21). The two ends of the pressure roller (101) are rotatably connected to a first slider (22) respectively. The two pressure rollers (101) are arranged vertically and press the band saw blade (102) between the two pressure rollers (101). The third roller assembly (3) is located above the second roller assembly (2). The third roller assembly (3) includes at least one pressure roller (311). The pressure roller (311) presses against the pressure roller (101) of the second roller assembly (2). The pressure roller (311) is located above the band saw blade (102).

2. The band saw blade cutting rear end traction device according to claim 1, characterized in that, The pressure roller (101) includes a first pressure part (1011) and a second pressure part (1012). The diameter of the first pressure part (1011) is larger than that of the second pressure part (1012). The first pressure part (1011) contacts the band saw blade (102), and the teeth of the band saw blade (102) extend out of the first pressure part (1011).

3. The band saw blade cutting rear end traction device according to claim 2, characterized in that, The band saw blade (102) includes a waste portion located within the range of the second pressing part (1012). The second pressing part (1012) is provided with pressing rings (1013), and two pressing rings (1013) clamp the waste portion of the band saw blade (102).

4. The band saw blade cutting rear end traction device according to claim 1, characterized in that, The second side plate (21) is provided with a first sliding groove (211), and first guide grooves (2111) are opened on both sides of the first sliding groove (211). The first slider (22) is located in the first sliding groove (211), and the first slider (22) is provided with a first guide block (221) corresponding to the first guide groove (2111).

5. The band saw blade cutting rear end traction device according to claim 1, characterized in that, The second roller assembly (2) includes guide plates (24), two of which are arranged in parallel with a gap between them. The guide plates (24) extend along the axial direction of the pressure roller (101), and a guide channel (241) is formed between the two guide plates (24). The third roller assembly (3) includes a pressing assembly (31) and an adjusting assembly (32). The adjusting assembly (32) includes a second slider (321) and a threaded rod (322). The second slider (321) can slide along the guide channel (241). The threaded rod (322) is threadedly connected to the second slider (321) and passes through the second slider (321). The pressing assembly (31) includes a mounting base (312). The lower end of the threaded rod (322) is connected to the mounting base (312) through a bearing. The pressure roller (311) is rotatably mounted on the mounting base (312).

6. The band saw blade cutting rear end traction device according to claim 5, characterized in that, The second roller assembly (2) includes a top plate (23), the top plate (23) is mounted on the upper end of the second side plate (21), and the guide plate (24) is fixedly mounted on the upper end surface of the top plate (23).

7. The band saw blade cutting rear end traction device according to claim 5, characterized in that, There are two pressure rollers (311), which are symmetrically arranged and both pressure rollers (311) abut against the outer wall of the pressure roller (101) of the second roller assembly (2).

8. The band saw blade cutting rear end traction device according to claim 5, characterized in that, The second slider (321) has a second guide groove (3211) on both sides. The second guide groove (3211) is slidably connected to the guide plate (24). The second slider (321) is mounted with a bolt (323). The bolt (323) can fix the second slider (321) and the guide plate (24).

9. The band saw blade cutting rear end traction device according to claim 5, characterized in that, The mounting base (312) is provided with a guide rod (313) that extends toward the second slider (321) and passes through the second slider (321).

Images