Tensioning device for band-sawing machine

Abstract

The utility model relates to the technical field of band-sawing machines, and particularly discloses a tensioning device for a band-sawing machine, which comprises a band-sawing machine shell, an upper sawing wheel is arranged on the inner side of the band-sawing machine shell, a saw blade is arranged on the outer side of the upper sawing wheel, a tensioning mechanism is arranged on the right side of the band-sawing machine shell, and an observation component is arranged on the outer side of the band-sawing machine shell. Through the arrangement of the vertical threaded rod, the cover body and the mounting block, when a saw blade is mounted or daily maintained, the position of the mounting block and the position of the upper saw wheel arranged on the outer side of the mounting block can be adjusted by rotating the vertical threaded rod, and the tensioning degree of the band sawing machine is adjusted by adjusting the position of the upper saw wheel; according to the band-sawing machine, the phenomenon that the saw blade is damaged or falls off in the using process is avoided, and after the tensioning degree of the band-sawing machine is adjusted, friction is generated between the rubber strip and the sliding block, so that the position of the mounting block is limited, it is ensured that the mounting block does not move under the effect of external force, and the tensioning degree of the band-sawing machine is stable, and the working efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of band sawing machine, concretely relates to a tensioning device for band sawing machine. BACKGROUND

[0002] Band sawing machine is the ringless endless saw blade as saw, around two saw wheels make the straight line movement of one-way continuous to saw cut wood sawing machine. Mainly by the bed, saw wheel, upper saw wheel lifting and pitch and roll device, saw blade tensioning device, saw blade guiding device, workbench, guide plate etc. Bed is made of cast iron or steel plate welding, and the band sawing machine needs to adjust the tension of the saw blade during the installation of the saw blade and the daily maintenance, to avoid the falling or breaking of the band saw blade during use.

[0003] The band sawing machine in the prior art is mostly adjusted by rotating the threaded rod to adjust the position of the upper saw wheel, but the position of the upper saw wheel after adjustment is not limited, which leads to the loosening phenomenon during vibration, the tension of the saw blade needs to be adjusted frequently, and the position of the saw blade on the saw wheel cannot be directly observed, so that the tension change of the saw blade cannot be found in time, therefore, we provide a tensioning device for band sawing machine. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tensioning device for band sawing machine to solve the problem that the saw blade is prone to loosening during vibration in the prior art, thereby affecting the tension of the saw blade.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A tensioning device for band sawing machine, including band sawing machine shell, the inside of band sawing machine shell is provided with upper saw wheel, the outside of upper saw wheel is provided with saw blade, the right side of band sawing machine shell is provided with tensioning mechanism, the outside of band sawing machine shell is provided with observation assembly;

[0007] The tensioning mechanism includes a cover body, the cover body is fixedly connected to the outer side of the band sawing machine shell, the inside of the cover body is provided with a mounting block, the top of the mounting block is fixedly connected with a spring, the bottom of the mounting block is movably connected with a vertical threaded rod through a bearing, the outer side of the mounting block is fixedly connected with a sliding block, the outer side of the cover body is movably connected with a horizontal threaded rod through a bearing, the outer side of the horizontal threaded rod is threadedly connected with a U-shaped plate, and the inner side of the U-shaped plate is provided with a rubber strip.

[0008] Preferably, the bottom end of the vertical threaded rod penetrates through the bottom of the cover body and is threadedly connected with the bottom of the cover body, and a connecting groove in communication with the inside of the cover body is formed in the right side of the band sawing machine shell.

[0009] Preferably, the left side of the mounting block penetrates into the connecting groove and extends into the band saw machine shell, and the upper saw wheel is movably connected to the outside of the mounting block.

[0010] Preferably, the outer side of the cover body is provided with a sliding groove, and the two sliding blocks are penetrated into the corresponding sliding grooves on the far side and are slidably connected with the inner sides of the sliding grooves.

[0011] Preferably, the outer side of the cover body is fixedly connected with a limiting rod, and the other end of the limiting rod penetrates into the U-shaped plate and is slidably connected with the U-shaped plate.

[0012] Preferably, the observation assembly comprises a display screen, the display screen is fixedly connected to the front side of the band saw machine shell, two symmetrical cameras are fixedly connected to the inner top of the band saw machine shell, and a range line is arranged on the outside of the upper saw wheel.

[0013] Preferably, the two cameras are provided with illuminating lamps in the middle, and the illuminating lamps are fixedly connected to the inner top of the band saw machine shell.

[0014] Compared with the prior art, the band saw machine has the advantages that:

[0015] 1. The vertical threaded rod, the cover body and the mounting block are arranged, the position of the mounting block and the upper saw wheel arranged on the outside of the mounting block can be adjusted by rotating the vertical threaded rod when the saw blade is installed or daily maintained, the adjustment of the position of the upper saw wheel is completed, the adjustment of the tension of the band saw machine is completed, the damage or falling of the saw blade during use is avoided, and the working efficiency of the band saw machine is ensured.

[0016] 2. The horizontal threaded rod, the U-shaped plate and the rubber strip are arranged, the position of the mounting block is limited by the friction between the rubber strip and the sliding block after the tension of the band saw machine is adjusted, the displacement of the mounting block under external force is avoided, the tension of the band saw machine is stable, and the working efficiency is high.

[0017] 3. The camera, the range line and the display screen are arranged, the position of the saw blade on the upper saw wheel can be acquired in real time by the camera during use of the band saw machine, the display screen is presented, the operator can timely and accurately find the movement of the saw blade on the outside of the upper saw wheel, the tension is timely adjusted, and the damage or fracture of the saw blade is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is one of the perspective views of the utility model;

[0019] Figure 2 It is the second perspective view of the utility model;

[0020] Figure 3The installation block and the upper saw wheel connection schematic view of the utility model;

[0021] Figure 4 The cover body and the U-shaped plate connection schematic view of the utility model;

[0022] Figure 5 The U-shaped plate structure schematic view of the utility model;

[0023] Figure 6 The inside schematic view of the band saw machine shell of the utility model.

[0024] In the figure: 1, band saw machine shell;2, tensioning mechanism;201, spring;202, sliding block;203, installation block;204, vertical threaded rod;205, cover body;206, limiting rod;207, horizontal threaded rod;208, U-shaped plate;209, rubber strip;210, sliding groove;211, connecting groove;3, observation assembly;301, camera;302, light;303, display screen;304, range line;4, saw blade;5, upper saw wheel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Referring to Figures 1-6 The utility model provides a kind of tensioning device for band saw machine, including band saw machine shell 1, the inside of band saw machine shell 1 is provided with upper saw wheel 5, the outside of upper saw wheel 5 is provided with saw blade 4, the right side of band saw machine shell 1 is provided with tensioning mechanism 2, the outside of band saw machine shell 1 is provided with observation assembly 3;

[0027] Tensioning mechanism 2 includes cover body 205, cover body 205 is fixedly connected to the outside of band saw machine shell 1, the inside of cover body 205 is provided with installation block 203, the top of installation block 203 is fixedly connected with spring 201, the bottom of installation block 203 is movably connected with vertical threaded rod 204 by bearing, the outside of installation block 203 is fixedly connected with sliding block 202.

[0028] Among them, vertical threaded rod 204 bottom end is fixedly connected with rotating handle one, for rotating threaded rod when adjusting tension degree;

[0029] The outside of installation block 203 is fixedly connected with wheel shaft, upper saw wheel 5 is movably connected on the outside of wheel shaft by bearing, so that it can rotate on installation block 203.

[0030] In further embodiments, referring to Figures 1-4 The bottom end of the vertical threaded rod 204 penetrates through the bottom of the cover 205 and is threadedly connected with the bottom of the cover 205. The right side of the band saw machine shell 1 is provided with a connecting groove 211 in communication with the inside of the cover 205. The left side of the mounting block 203 penetrates through the connecting groove 211 and extends into the band saw machine shell 1. The upper saw wheel 5 is movably connected to the outside of the mounting block 203. The outside of the cover 205 is provided with a sliding groove 210. The two sliding blocks 202 are respectively penetrated through the corresponding sliding grooves 210 on the sides away from each other and are slidably connected with the inside of the sliding grooves 210.

[0031] Specifically, the sliding groove 210 and the sliding block 202 limit the moving track and position of the mounting block 203. By limiting the sliding block 202, the purpose of limiting the mounting block 203 in the cover 205 is achieved, and the stability of the position of the mounting block 203 is ensured, and the phenomenon of displacement does not occur.

[0032] In this embodiment, the annular saw blade 4 is respectively sleeved on the upper saw wheel 5 and the lower saw wheel. The position of the mounting block 203 is adjusted by rotating the vertical threaded rod 204. The adjustment of the position of the mounting block 203 drives the adjustment of the position of the upper saw wheel 5, so as to adjust the tensioning degree of the band saw machine.

[0033] In further embodiments, referring to Figures 3-5 The outside of the cover 205 is movably connected with a horizontal threaded rod 207 through a bearing. The outside of the horizontal threaded rod 207 is threadedly connected with a U-shaped plate 208. The inside of the U-shaped plate 208 is provided with a rubber strip 209. The outside of the cover 205 is fixedly connected with a limiting rod 206. The other end of the limiting rod 206 penetrates through the U-shaped plate 208 and is slidably connected with the U-shaped plate 208.

[0034] Specifically, the outside of the rubber strip 209 can be provided with anti-skid lines. By connecting between the anti-skid lines and the sliding block 202, the friction is increased, and the limiting effect on the sliding block 202 is improved.

[0035] In this embodiment, after the tensioning degree of the band saw machine is adjusted to an appropriate degree, the horizontal threaded rod 207 is rotated. The rotation of the horizontal threaded rod 207 drives the movement of the U-shaped plate 208. The rubber strip 209 on the inside of the U-shaped plate 208 is tightly attached to the sliding block 202 on the outside of the mounting block 203, so as to achieve the purpose of preventing the displacement of the mounting block 203. The stability of the tensioning degree of the saw blade 4 is ensured, the number of times of adjusting the tensioning degree is reduced, and the working efficiency of the band saw machine is improved.

[0036] In further embodiments, referring to Figure 2 and Figure 6The observation assembly 3 comprises a display screen 303 fixedly connected to the front side of the band saw machine shell 1, two symmetrical cameras 301 fixedly connected to the inner top of the band saw machine shell 1, a range line 304 arranged on the outer side of the upper saw wheel 5, and a lighting lamp 302 arranged between the two cameras 301 and fixedly connected to the inner top of the band saw machine shell 1.

[0037] In the embodiment, the camera 301 can acquire the image of the position of the saw blade 4 on the outer side of the upper saw wheel 5 and transmit the image to the display screen 303 for display.

[0038] It should be noted that the connection between the camera 301 and the display screen 303 is prior art and is well known in the art, and thus will not be described in detail.

[0039] The working principle of the band saw machine is as follows:

[0040] When the tension of the band saw machine is adjusted, the vertical threaded rod 204 is rotated to drive the mounting block 203 to move upwards.

[0041] After the adjustment is completed, the horizontal threaded rod 207 is rotated to drive the U-shaped plate 208 to move until the horizontal threaded rod 207 cannot be rotated, at which time the rubber strip 209 on the inner side of the U-shaped plate 208 is tightly attached to the sliding block 202 to limit the position of the sliding block 202.

[0042] When the band saw machine is used, the position of the saw blade 4 on the outer side of the upper saw wheel 5 can be acquired by the camera 301 and the lighting lamp 302 and presented to the operator through the display screen 303, which facilitates the operator to judge whether the saw blade 4 has displacement through the range line 304.

[0043] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tensioning device for a band saw machine comprising a band saw machine housing (1), characterized in that, The band saw machine shell (1) is provided with an upper saw wheel (5) on the inner side, the outer side of the upper saw wheel (5) is provided with a saw blade (4), the right side of the band saw machine shell (1) is provided with a tensioning mechanism (2), and the outer side of the band saw machine shell (1) is provided with an observation assembly (3). The tensioning mechanism (2) comprises a cover body (205) fixedly connected to the outer side of the band saw machine shell (1), an installation block (203) is arranged on the inner side of the cover body (205), a spring (201) is fixedly connected to the top of the installation block (203), a vertical threaded rod (204) is movably connected to the bottom of the installation block (203) through a bearing, a sliding block (202) is fixedly connected to the outer side of the installation block (203), a horizontal threaded rod (207) is movably connected to the outer side of the cover body (205) through a bearing, and a U-shaped plate (208) is threadedly connected to the outer side of the horizontal threaded rod (207), and the inner side of the U-shaped plate (208) is provided with a rubber strip (209).

2. A tensioning device for a band saw machine according to claim 1, characterized in that: The bottom end of the vertical threaded rod (204) penetrates through the bottom of the cover body (205) and is threadedly connected with the bottom of the cover body (205), and the right side of the band saw machine shell (1) is provided with a connecting groove (211) in communication with the inside of the cover body (205).

3. A tensioning device for a band saw machine according to claim 1, characterized in that: The left side of the installation block (203) penetrates the connecting groove (211) and extends into the band saw machine shell (1), and the upper saw wheel (5) is movably connected to the outer side of the installation block (203).

4. A tensioning device for a band saw machine according to claim 1, characterized in that: The outer side of the cover body (205) is provided with a sliding groove (210), and the sides away from each other of the two sliding blocks (202) penetrate the corresponding sliding grooves (210) and are slidably connected with the inner sides of the sliding grooves (210).

5. A tensioning device for a band saw machine according to claim 1, characterized in that: The outer side of the cover body (205) is fixedly connected with a limiting rod (206), and the other end of the limiting rod (206) penetrates the U-shaped plate (208) and is slidably connected with the U-shaped plate (208).

6. A tensioning device for a band saw machine according to claim 1, characterized in that: The observation assembly (3) comprises a display screen (303) fixedly connected to the front side of the band saw machine shell (1), two symmetrically distributed cameras (301) are fixedly connected to the inner top of the band saw machine shell (1), and a range line (304) is arranged on the outer side of the upper saw wheel (5).

7. A tensioning device for a band saw machine according to claim 6, characterized in that: A lighting lamp (302) is arranged between the two cameras (301), and the lighting lamp (302) is fixedly connected to the inner top of the band saw machine shell (1).

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