Vertical band sawing machine

Abstract

The utility model provides a vertical band sawing machine, and belongs to the technical field of sawing machines. An upper mounting seat and a lower mounting seat are arranged at the upper end and the lower end of the bow frame respectively, a driven wheel and a driving wheel are arranged in the upper mounting seat and the lower mounting seat respectively, a band saw blade is wound on the outer diameter of the driven wheel and the outer diameter of the driving wheel, a driving wheel driving assembly is arranged on the lower mounting seat, and a workbench used for bearing workpieces is arranged on the bow portion of the bow frame. A tightness adjusting mechanism for adjusting the tightness of the band saw blade is arranged on the upper mounting seat, and a band saw blade guide mechanism capable of reducing vibration and jumping of the band saw blade is further arranged on the bow rack. The tightness of the band saw blade is convenient to adjust and operate, and the band saw blade can keep proper tightness, so that the sawing effect is improved, and the service life of the band saw blade is prolonged; the band saw blade can keep a correct moving track, vibration and jumping are reduced, and the problems that due to swinging or deviation of the band saw blade, cutting lines are not straight, and notches are not flat are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sawing machines and relates to a vertical band sawing machine. Background Art

[0002] A vertical band saw, a type of sawing machine, uses a band saw blade as a tool and is widely used for sawing metal and non-metallic materials. The driving pulley on the band saw rotates, driving the saw blade, which is wound around the driving and driven pulleys. The tension of the saw blade during the cutting process significantly affects the sawing process. A too tight blade can easily deform and break, while a too loose blade cannot maintain a good fit with the driving pulley, reducing the saw's efficiency. Adjusting the blade tension on existing saws is cumbersome and complex, impacting efficiency. Furthermore, the saw blade is prone to deviation during cutting, resulting in an uneven cut line and affecting workpiece accuracy. It also produces significant vibration and jitter, reducing cutting efficiency and even causing the blade to break. Utility Model Content

[0003] The purpose of this utility model is to provide a vertical band sawing machine in view of the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A vertical band saw machine includes a vertically arranged bow frame, with an upper mounting seat and a lower mounting seat respectively provided at the upper and lower ends of the bow frame, a driven wheel and a driving wheel respectively provided in the upper mounting seat and the lower mounting seat, a band saw blade is wound around the outer diameter of the driven wheel and the driving wheel, a driving wheel drive assembly is provided on the lower mounting seat, a workbench for supporting a workpiece is provided on the bow portion of the bow frame, a tension adjustment mechanism for adjusting the tension of the band saw blade is provided on the upper mounting seat, and a band saw blade guide mechanism capable of reducing vibration and jump of the band saw blade is also provided on the bow frame.

[0006] The tension adjustment mechanism can flexibly and conveniently adjust the tension of the band saw blade, ensuring that the band saw blade maintains appropriate tightness so that the band saw blade maintains good elasticity, thereby improving the sawing effect and extending the service life of the band saw blade. It can avoid the band saw blade from being too loose and vibrating, and the saw teeth from offsetting and bending, affecting the sawing accuracy, or being too tight and subjected to excessive stress, causing the band saw blade to fatigue or even break, thereby endangering the safety of workers. The band saw blade guide mechanism can ensure that the band saw blade maintains the correct running trajectory, reduces vibration and jumping, and avoids problems such as non-straight cutting lines and uneven incisions caused by swinging or offsetting the band saw blade, thereby maintaining cutting accuracy, improving cutting efficiency, and extending the life of the saw blade.

[0007] In the above-mentioned vertical band saw machine, the tension adjustment mechanism includes an upper mounting plate arranged in the upper mounting seat, a positioning slide groove is vertically provided on the upper mounting plate, a positioning slider is slidably connected in the positioning slide groove, a driven shaft is provided on the side of the positioning slider near the band saw blade, the driven wheel is sleeved on the driven shaft, a connecting bearing is provided between the driven wheel and the driven shaft, and a rack transmission assembly is provided between the other side of the positioning slider and the upper mounting seat, which can adjust the vertical height of the positioning slider in the positioning slide groove.

[0008] The rack transmission assembly can adjust the vertical height of the positioning slider in the positioning chute, and the adjustment operation is convenient. When the vertical height of the positioning slider in the positioning chute increases, the vertical height of the driven wheel increases accordingly, thereby tightening the band saw blade. When the vertical height of the positioning slider in the positioning chute decreases, the vertical height of the driven wheel decreases accordingly, thereby loosening the band saw blade, so as to flexibly adjust the tension of the band saw blade and ensure that the band saw blade maintains appropriate tightness. The connecting bearing between the driven wheel and the driven shaft plays the role of supporting and reducing friction.

[0009] In the above-mentioned vertical band saw machine, the rack transmission assembly includes a transmission plate fixedly connected to the side wall of the positioning slider and distributed vertically, the side wall of the transmission plate is provided with transmission teeth distributed vertically, the upper mounting seat is provided with a driving gear that meshes with the transmission teeth for transmission, the outer end of the upper mounting seat is provided with a gear driver, and the output end of the gear driver is connected to the driving gear.

[0010] The rotation of the driving gear can drive the transmission plate to move vertically upward or downward through the meshing transmission connection with the transmission teeth, thereby synchronously driving the adjustment slider to slide vertically up and down in the adjustment slide groove to flexibly adjust the tension of the band saw blade to ensure that the band saw blade maintains appropriate tightness. The meshing transmission between the transmission teeth and the driving gear can ensure a constant transmission ratio, achieve precise adjustment and maintain stable performance.

[0011] In the above-mentioned vertical band saw, a moving guide structure is provided between the transmission plate and the upper mounting plate for providing vertical guidance when the transmission plate moves vertically.

[0012] The movable guide structure can play a vertical guiding role when the transmission plate moves vertically, preventing the transmission plate from deflecting.

[0013] In the above-mentioned vertical band saw, the movable guide structure includes dovetail grooves arranged on the side walls of the upper mounting plate and located on both sides of the adjustment groove. The dovetail grooves are distributed vertically, and the side walls of the transmission plate are provided with dovetail sliders that slide in cooperation with the dovetail grooves.

[0014] When the transmission plate moves vertically, the dovetail slider on the side wall of the transmission plate slides in the dovetail groove on the side wall of the upper mounting plate. The sliding cooperation between the dovetail slider and the dovetail groove can play a limiting and guiding role to prevent the transmission plate from shifting.

[0015] In the above-mentioned vertical band saw machine, the band saw blade guide mechanism includes guide seats respectively arranged at the upper and lower ends of the workbench and connected to the bow frame, and the side walls of the guide seats are provided with a plurality of guide bearing groups distributed vertically, and each group of the guide bearing groups includes an eccentric shaft symmetrically arranged on the side wall of the guide seat, and the eccentric shaft is sleeved with a plurality of first guide bearings, and the two sides of the band saw blade are respectively abutted against the horizontally adjacent first guide bearings, and the side walls of the guide seat are also provided with vertically distributed saw blade yielding grooves and horizontally distributed positioning grooves, and a guide shaft is provided in the positioning groove, and a second guide bearing is sleeved on the guide shaft, and the back end of the band saw blade is abutted against the outer ring of the second guide bearing.

[0016] The saw blade giving way groove plays a role in giving way for the band saw blade. The two sides of the band saw blade respectively abut against the horizontally adjacent first guide bearings to ensure that the band saw blade maintains the correct running trajectory, reduces vibration and jumping, and avoids the problems of non-straight cutting lines and uneven incisions caused by swinging or offsetting of the band saw blade, which plays a role in maintaining cutting accuracy, improving cutting efficiency and extending the life of the saw blade. The outer ring of the second guide bearing abuts against the back end of the band saw blade, which guides the band saw blade and can ensure that the band saw blade maintains a straight line during the sawing process, avoids swinging or offsetting of the band saw blade, and thus maintains cutting stability and accuracy.

[0017] In the above-mentioned vertical band saw machine, the guide seat located at the upper end of the workbench is connected to the upper mounting seat through a vertical adjustment structure, and the vertical adjustment structure includes a T-shaped guide slide rail arranged on the side wall of the upper mounting plate and distributed vertically. The upper end of the guide seat is connected to an adjustment plate passing through the upper mounting seat, and the bottom end of the adjustment plate is provided with a vertical adjustment slide groove that slides with the T-shaped guide slide rail. A vertical locking groove is vertically penetrated on the adjustment plate, and a fixing bolt for fixing the adjustment plate to the T-shaped guide slide rail when the adjustment plate is vertically adjusted is passed through the vertical locking groove. The T-shaped guide slide rail is provided with a plurality of bolt holes distributed vertically.

[0018] The guide seat located at the upper end of the workbench has an adjustment plate at its upper end that can slide vertically on the T-shaped guide rail on one side of the upper mounting plate through a vertical adjustment groove to adjust the vertical position of the guide seat. After the guide seat is vertically adjusted, the fixing bolts passing through the vertical locking grooves are screwed into the bolt holes on the T-shaped guide rail to fix the adjustment plate on the T-shaped guide rail to fix the guide seat.

[0019] In the above-mentioned vertical band saw machine, the upper end of the guide seat is connected to the adjustment plate through a horizontal adjustment structure, and the horizontal adjustment structure includes a T-shaped horizontal slide rail arranged at the bottom end of the adjustment plate. The upper end of the guide seat is provided with an upper horizontal plate, and the upper end of the upper horizontal plate is provided with a horizontal slide groove that slides with the T-shaped horizontal slide rail. The upper horizontal plate is penetrated by a horizontal locking groove distributed horizontally, and a locking bolt connected to the T-shaped horizontal slide rail is passed through the horizontal locking groove, and the T-shaped horizontal slide rail is provided with a plurality of locking screw holes distributed horizontally.

[0020] The adjustment plate can slide horizontally in the horizontal slide groove at the upper end of the upper horizontal plate through the T-shaped horizontal slide rail at the bottom end to adjust the horizontal position of the guide seat. It is used to flexibly adapt to band saw blades of different specifications and sizes or to fine-tune the position of the band saw blade to meet different cutting requirements. After the guide seat is horizontally adjusted, the locking bolt passing through the horizontal locking groove is screwed into the locking screw hole on the T-shaped horizontal slide rail to fix the upper horizontal plate on the T-shaped horizontal slide rail to fix the guide seat.

[0021] In the above-mentioned vertical band saw machine, the driving wheel drive assembly includes a spindle driver arranged on the outer wall of the lower mounting seat through a mounting frame, a lower mounting plate is provided in the lower mounting seat, a driving shaft is passed through the lower mounting plate, the driving wheel is sleeved on the driving shaft, and the output end of the spindle driver is connected to the driving shaft through a reducer.

[0022] The spindle driver drives the active shaft to rotate through the reducer. The rotation of the active shaft synchronously drives the active wheel to rotate to drive the band saw blade closed around the active wheel and the driven wheel to rotate, which can achieve zero gap, no transmission error, no return error and high transmission accuracy.

[0023] In the above-mentioned vertical band saw machine, a transverse adjustment structure is provided between the guide seat located at the lower end of the workbench and the lower mounting seat, and the transverse adjustment structure includes a T-shaped transverse slide rail arranged at the top end of the lower mounting seat, and the guide seat located at the lower end of the workbench is provided with a lower horizontal plate at its lower end, and the bottom end of the lower horizontal plate is provided with a transverse slide groove that slides with the T-shaped transverse slide rail, and a transverse locking groove is provided through the lower horizontal plate, and a fastening bolt connected to the T-shaped transverse slide rail is passed through the transverse locking groove, and the T-shaped transverse slide rail is provided with a plurality of fastening screw holes distributed horizontally.

[0024] The guide seat located at the lower end of the workbench has a lower horizontal plate at its lower end that can slide horizontally on the T-shaped horizontal slide rail at the top end of the lower mounting seat through a horizontal slide groove to adjust the horizontal position of the guide seat, which is used to flexibly adapt to band saw blades of different specifications and sizes or to fine-tune the position of the band saw blade to meet different cutting requirements. After the guide seat is adjusted laterally, the fastening bolts passing through the horizontal locking grooves are screwed into the fastening screw holes on the T-shaped horizontal slide rail to fix the lower horizontal plate on the T-shaped horizontal slide rail to fix the guide seat.

[0025] Compared with existing technologies, the advantages of this utility model are: 1. The band saw blade tension can be easily adjusted, ensuring that the band saw blade maintains the appropriate tension, thereby improving sawing performance and extending the life of the band saw blade. 2. The band saw blade can maintain a correct running trajectory, reducing vibration and jump, and avoiding problems such as uneven cutting lines and incisions caused by band saw blade swing or deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0027] Figure 2 It is a structural diagram of the band saw blade guide mechanism;

[0028] Figure 3 It is a side view provided by the utility model;

[0029] Figure 4 1. It is a structural diagram of the tension adjustment mechanism;

[0030] Figure 5 It is a cross-sectional view provided by the utility model;

[0031] Figure 6 It is a structural diagram of a vertical adjustment structure;

[0032] Figure 7 It is a structural diagram of the horizontal adjustment structure.

[0033] In the figure, the bow frame 1, the upper mounting seat 2, the lower mounting seat 3, the driven wheel 4, the driving wheel 5, the band saw blade 6, the driving wheel drive assembly 7, the workbench 8, the tension adjustment mechanism 9, the band saw blade guide mechanism 10, the upper mounting plate 11, the adjustment slide 12, the adjustment slider 13, the driven shaft 14, the connecting bearing 15, the rack transmission assembly 16, the transmission plate 17, the transmission gear 18, the driving gear 19, the gear driver 20, the mobile guide structure 21, the dovetail slide 22, the dovetail slider 23, the guide seat 24, the vertical adjustment structure 25, the T-shaped guide rail 26, the adjustment plate 27, the vertical adjustment Positioning slide 28, vertical locking groove 29, fixing bolt 30, bolt hole 31, horizontal adjustment structure 32, T-shaped horizontal slide rail 33, upper horizontal plate 34, horizontal slide 35, horizontal locking groove 36, locking bolt 37, spindle driver 39, lower mounting plate 40, driving shaft 41, horizontal adjustment structure 43, T-shaped horizontal slide rail 44, lower horizontal plate 45, horizontal slide 46, horizontal locking groove 47, fastening bolt 48, guide bearing group 49, eccentric shaft 50, first guide bearing 51, saw blade clearance groove 52, positioning groove 53, guide shaft 54, second guide bearing 55. DETAILED DESCRIPTION

[0034] like Figures 1-4 As shown, a vertical band saw machine includes a vertically arranged bow frame 1, with an upper mounting seat 2 and a lower mounting seat 3 provided at the upper and lower ends of the bow frame 1 respectively, a driven wheel 4 and a driving wheel 5 are provided in the upper mounting seat 2 and the lower mounting seat 3 respectively, a band saw blade 6 is wound around the outer diameter of the driven wheel 4 and the driving wheel 5, a driving wheel driving assembly 7 is provided on the lower mounting seat 3, a workbench 8 for supporting a workpiece is provided on the bow portion of the bow frame 1, a tension adjusting mechanism 9 for adjusting the tension of the band saw blade 6 is provided on the upper mounting seat 2, and a band saw blade guide mechanism 10 capable of reducing vibration and jumping of the band saw blade 6 is also provided on the bow frame 1.

[0035] In the present invention, the band saw blade 6 is wound and installed on the outer diameter of the driven wheel 4 and the driving wheel 5. The driving wheel drive assembly 7 on the lower mounting seat 3 can drive the driving wheel 5 to rotate and drive the band saw blade 6 and the driven wheel 4 to rotate. The band saw blade 6 rotates to perform cutting operations on the workpiece on the workbench 8.

[0036] The tension adjustment mechanism 9 on the upper mounting seat 2 can flexibly and conveniently adjust the tension of the band saw blade 6, ensuring that the band saw blade 6 maintains appropriate tightness so that the band saw blade 6 can maintain good elasticity, thereby improving the sawing effect and extending the service life of the band saw blade, avoiding the band saw blade 6 being too loose and vibrating and the saw teeth being offset and bent, affecting the sawing accuracy, or being too tight and subjected to excessive stress, causing the band saw blade 6 to fatigue or even break, thereby endangering the safety of workers. The band saw blade guide mechanism 10 on the bow frame 1 can ensure that the band saw blade 6 maintains the correct running trajectory, reduces vibration and jumping, and avoids the problem of non-straight cutting lines and uneven incisions caused by swinging or offsetting the band saw blade 6, playing a role in maintaining cutting accuracy, improving cutting efficiency, and extending the life of the saw blade.

[0037] Specifically, combined Figure 3-Figure 5 As shown, the tension adjustment mechanism 9 includes an upper mounting plate 11 arranged in the upper mounting seat 2, a positioning slide 12 is vertically provided on the upper mounting plate 11, a positioning slider 13 is slidably connected in the positioning slide 12, a driven shaft 14 is provided on the side of the positioning slider 13 near the band saw blade 6, the driven wheel 4 is sleeved on the driven shaft 14, a connecting bearing 15 is provided between the driven wheel 4 and the driven shaft 14, and a rack transmission assembly 16 is provided between the other side of the positioning slider 13 and the upper mounting seat 2, which can adjust the vertical height of the positioning slider 13 in the positioning slide 12.

[0038] The rack transmission assembly 16 can adjust the vertical height of the positioning slider 13 in the positioning slot 12, and the adjustment operation is convenient. When the vertical height of the positioning slider 13 in the positioning slot 12 increases, the vertical height of the driven wheel 4 increases accordingly, thereby tightening the band saw blade 6. When the vertical height of the positioning slider 13 in the positioning slot 12 decreases, the vertical height of the driven wheel 4 decreases accordingly, thereby loosening the band saw blade 6, so as to flexibly adjust the tension of the band saw blade 6 and ensure that the band saw blade 6 maintains appropriate tightness. The connecting bearing 15 between the driven wheel 4 and the driven shaft 14 plays the role of supporting and reducing friction.

[0039] Specifically, combined Figure 3-Figure 5 As shown, the rack transmission assembly 16 includes a transmission plate 17 fixedly connected to the side wall of the positioning slider 13 and distributed vertically, and the side wall of the transmission plate 17 is provided with transmission teeth 18 distributed vertically. A driving gear 19 that meshes with the transmission teeth 18 is provided in the upper mounting seat 2, and a gear driver 20 is provided at the outer end of the upper mounting seat 2, and the output end of the gear driver 20 is connected to the driving gear 19.

[0040] The operation of the gear driver 20 can drive the driving gear 19 to rotate. The rotation of the driving gear 19 can drive the transmission plate 17 to move vertically upward or vertically downward through the meshing transmission connection with the transmission teeth 18, thereby synchronously driving the adjustment slider 13 to slide vertically up and down in the adjustment slot 12, so as to flexibly adjust the tension of the band saw blade 6 and ensure that the band saw blade 6 maintains appropriate tightness. The meshing transmission between the transmission teeth 18 and the driving gear 19 can ensure a constant transmission ratio, achieve precise adjustment and maintain stable performance.

[0041] Preferably, combined Figure 4 and Figure 5 As shown, a moving guide structure 21 is provided between the transmission plate 17 and the upper mounting plate 11 to provide vertical guidance when the transmission plate 17 moves vertically.

[0042] The movement guide structure 21 between the transmission plate 17 and the upper mounting plate 11 can play a vertical guiding role when the transmission plate 17 moves vertically, thereby preventing the transmission plate 17 from deflecting.

[0043] Specifically, combined Figure 4 and Figure 5 As shown, the movable guide structure 21 includes a dovetail groove 22 arranged on the side wall of the upper mounting plate 11 and located on both sides of the adjustment groove 12. The dovetail groove 22 is distributed vertically, and a dovetail slider 23 is provided on the side wall of the transmission plate 17 to slide with the dovetail groove 22.

[0044] When the transmission plate 17 moves vertically, the dovetail slider 23 on the side wall of the transmission plate 17 slides in the dovetail groove 22 on the side wall of the upper mounting plate 11. The sliding cooperation between the dovetail slider 23 and the dovetail groove 22 can play a limiting and guiding role to prevent the transmission plate 17 from shifting. Thanks to its unique groove structure, the dovetail slider 23 and the dovetail groove 22 have very strong connection stability and high precision, ensuring that the transmission plate 17 can move stably and accurately on the upper mounting plate 11.

[0045] Specifically, combined Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7As shown, the band saw blade guide mechanism 10 includes a guide seat 24 respectively arranged at the upper and lower ends of the workbench 8 and connected to the bow frame 1. A plurality of guide bearing groups 49 distributed vertically are provided on the side wall of the guide seat 24. Each guide bearing group 49 includes an eccentric shaft symmetrically arranged on the side wall of the guide seat 24. A plurality of first guide bearings 51 are sleeved on the eccentric shaft 50. The two sides of the band saw blade 6 are respectively abutted against the horizontally adjacent first guide bearings 51. The side wall of the guide seat 24 is also provided with a vertically distributed saw blade yielding groove 52 and a horizontally distributed positioning groove 53. A guide shaft 54 ​​is provided in the positioning groove 53. A second guide bearing 55 is sleeved on the guide shaft 54. The back end of the band saw blade 6 is abutted against the outer ring of the second guide bearing 55.

[0046] The saw blade giving way groove 52 plays a giving way role for the band saw blade 6. The guide bearing group 49 on the side wall of the guide seat 24 can ensure that the band saw blade 6 maintains the correct direction and position during operation, helps to prevent the band saw blade 6 from twisting, and ensures the accuracy and smoothness of cutting. The two sides of the band saw blade 6 are respectively abutted against the horizontally adjacent first guide bearings 51 to ensure that the band saw blade 6 maintains the correct running trajectory, reduces vibration and jumping, and avoids the problems of non-straight cutting lines and uneven incisions caused by swinging or offsetting of the band saw blade 6, which plays a role in maintaining cutting accuracy, improving cutting efficiency, and extending the life of the saw blade. The outer ring of the second guide bearing 55 installed in the positioning groove 53 through the guide shaft 54 ​​abuts against the back end of the band saw blade 6, which plays a guiding role for the band saw blade 6, and can ensure that the band saw blade 6 maintains a straight line during the sawing process, avoids swinging or offsetting of the band saw blade 6, thereby maintaining cutting stability and accuracy.

[0047] Specifically, combined Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown, the guide seat 24 located at the upper end of the workbench 8 is connected to the upper mounting seat 2 through a vertical adjustment structure 25. The vertical adjustment structure 25 includes a T-shaped guide rail 26 vertically distributed on the side wall of the upper mounting plate 11. The upper end of the guide seat 24 is connected to an adjustment plate 27 that passes through the upper mounting seat 2. The bottom end of the adjustment plate 27 is provided with a vertical adjustment groove 28 that slides with the T-shaped guide rail 26. A vertical locking groove 29 is vertically penetrated on the adjustment plate 27. The vertical locking groove 29 is penetrated by a fixing bolt 30 for fixing the adjustment plate 27 on the T-shaped guide rail 26 after the adjustment plate 27 is vertically adjusted. The T-shaped guide rail 26 is provided with a plurality of bolt holes 31 distributed vertically.

[0048] The vertical adjustment structure 25 can flexibly adjust the vertical height of the guide seat 24 located at the upper end of the workbench 8 to better adapt to the characteristics of different materials, achieve the best cutting effect, reduce wear and damage caused by uneven force, stabilize the running trajectory of the band saw blade 6, and prevent it from producing excessive fluctuations, thereby improving cutting accuracy and efficiency. Appropriate vertical height adjustment can ensure that the band saw blade 6 is evenly stressed during the cutting process, which helps to extend the service life of the saw blade.

[0049] The guide seat 24 located at the upper end of the workbench 8 has an adjustment plate 27 at its upper end that can slide vertically on the T-shaped guide rail 26 on one side of the upper mounting plate 11 through the vertical adjustment groove 28 to adjust the vertical position of the guide seat 24. After the guide seat 24 is vertically adjusted, the fixing bolt 30 passing through the vertical locking groove 29 is screwed into the bolt hole 31 on the T-shaped guide rail 26 to fix the adjustment plate 27 on the T-shaped guide rail 26 to fix the guide seat 24.

[0050] Specifically, combined Figure 2 、 Figure 4 、 Figure 6 and Figure 7 As shown, the upper end of the guide seat 24 is connected to the adjustment plate 27 through a horizontal adjustment structure 32. The horizontal adjustment structure 32 includes a T-shaped horizontal slide rail 33 arranged at the bottom end of the adjustment plate 27. The upper end of the guide seat 24 is provided with an upper horizontal plate 34. The upper end of the upper horizontal plate 34 is provided with a horizontal slide groove 35 that slides with the T-shaped horizontal slide rail 33. The upper horizontal plate 34 is provided with a horizontal locking groove 36 distributed horizontally. The horizontal locking groove 36 is provided with a locking bolt 37 connected to the T-shaped horizontal slide rail 33. The T-shaped horizontal slide rail 33 is provided with a plurality of locking screw holes distributed horizontally.

[0051] The adjustment plate 27 can slide horizontally in the horizontal slide groove 35 at the upper end of the upper horizontal plate 34 through the T-shaped horizontal slide rail 33 at the bottom end to adjust the horizontal position of the guide seat 24, which is used to flexibly adapt to band saw blades 6 of different specifications or fine-tune the position of the band saw blade 6 to meet different cutting requirements. After the guide seat 24 is horizontally adjusted, the locking bolt 37 passing through the horizontal locking groove 36 is screwed into the locking screw hole on the T-shaped horizontal slide rail 33 to fix the upper horizontal plate 34 on the T-shaped horizontal slide rail 33 to fix the guide seat 24.

[0052] Specifically, combined Figure 2 、 Figure 3 and Figure 4 As shown, the driving wheel drive assembly 7 includes a spindle driver 39 arranged on the outer wall of the lower mounting base 3 through a mounting frame 38, a lower mounting plate 40 is provided in the lower mounting base 3, a driving shaft 41 is passed through the lower mounting plate 40, the driving wheel 5 is sleeved on the driving shaft 41, and the output end of the spindle driver 39 is connected to the driving shaft 41 through a reducer 42.

[0053] The spindle driver 39 drives the driving shaft 41 to rotate through the reducer 42. The rotation of the driving shaft 41 synchronously drives the driving wheel 5 to rotate to drive the closed band saw blade 6 wound around the driving wheel 5 and the driven wheel 4 to rotate, which can achieve zero gap, no transmission error, no return error and high transmission accuracy.

[0054] Specifically, combined Figure 2 and Figure 4 As shown, a transverse positioning structure 43 is provided between the guide seat 24 located at the lower end of the workbench 8 and the lower mounting seat 3. The transverse positioning structure 43 includes a T-shaped transverse slide rail 44 arranged at the top of the lower mounting seat 3. The guide seat 24 located at the lower end of the workbench 8 is provided with a lower horizontal plate 45 at its lower end. The bottom end of the lower horizontal plate 45 is provided with a transverse slide groove 46 that slides with the T-shaped transverse slide rail 44. A transverse locking groove 47 is provided through the lower horizontal plate 45. A fastening bolt 48 connected to the T-shaped transverse slide rail 44 is passed through the transverse locking groove 47. The T-shaped transverse slide rail 44 is provided with a plurality of fastening screw holes distributed horizontally.

[0055] The guide seat 24 located at the lower end of the workbench 8 has a lower horizontal plate 45 at its lower end that can slide horizontally on the T-shaped horizontal slide rail 44 at the top of the lower mounting seat 3 through a horizontal slide groove 46 to adjust the horizontal position of the guide seat 24, which is used to flexibly adapt to band saw blades 6 of different specifications or fine-tune the position of the band saw blade 6 to meet different cutting requirements. After the guide seat 24 is laterally adjusted, the fastening bolt 48 passing through the horizontal locking groove 47 is screwed into the fastening screw hole on the T-shaped horizontal slide rail 44 to fix the lower horizontal plate 45 on the T-shaped horizontal slide rail 44 to fix the guide seat 24.

[0056] The working principle of the utility model is as follows: the spindle driver 39 drives the driving shaft 41 to rotate through the reducer 42, and the rotation of the driving shaft 41 synchronously drives the driving wheel 5 to rotate to drive the band saw blade 6 closed around the driving wheel 5 and the driven wheel 4 to rotate for cutting processing;

[0057] The gear driver 20 is capable of driving the driving gear 19 to rotate, thereby driving the transmission plate 17 to move vertically upward or downward, thereby synchronously driving the adjusting slider 13 to slide vertically up and down in the adjusting slot 12, so as to flexibly adjust the tension of the band saw blade 6. When the vertical height of the adjusting slider 13 in the adjusting slot 12 increases, the vertical height of the driven wheel 4 increases accordingly, thereby tightening the band saw blade 6. When the vertical height of the adjusting slider 13 in the adjusting slot 12 decreases, the vertical height of the driven wheel 4 decreases accordingly, thereby loosening the band saw blade 6. When the transmission plate 17 moves vertically, the dovetail slider 23 on the side wall of the transmission plate 17 slides in the dovetail slot 22 on the side wall of the upper mounting plate 11.

[0058] The two sides of the band saw blade 6 are respectively in contact with the first guide bearings 51 adjacent to each other horizontally, and the outer ring of the second guide bearing 55 is in contact with the back end of the band saw blade 6, which can ensure that the band saw blade 6 maintains a straight line during the sawing process, avoids the band saw blade 6 from swinging or deflecting, and thus maintains the stability and accuracy of the cutting;

[0059] The vertical position and the horizontal position of the guide seat 24 located at the upper end of the workbench 8 are flexibly adjustable, and the lateral position of the guide seat 24 located at the lower end of the workbench 8 is flexibly adjustable.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0061] Although this article uses more bow frame 1, upper mounting seat 2, lower mounting seat 3, driven wheel 4, driving wheel 5, band saw blade 6, driving wheel drive assembly 7, workbench 8, tension adjustment mechanism 9, band saw blade guide mechanism 10, upper mounting plate 11, adjustment slide 12, adjustment slider 13, driven shaft 14, connecting bearing 15, rack transmission assembly 16, transmission plate 17, transmission gear 18, driving gear 19, gear driver 20, mobile guide structure 21, dovetail slide 22, dovetail slider 23, guide seat 24, vertical adjustment structure 25, T-type guide rail 26, adjustment plate 27, vertical adjustment slide 28, vertical locking groove 29, fixing bolt 30, bolt hole 31, The horizontal adjustment structure 32, T-shaped horizontal slide rail 33, upper horizontal plate 34, horizontal slide groove 35, horizontal locking groove 36, locking bolt 37, spindle drive 39, lower mounting plate 40, driving shaft 41, transverse adjustment structure 43, T-shaped transverse slide rail 44, lower horizontal plate 45, transverse slide groove 46, transverse locking groove 47, fastening bolt 48, guide bearing group 49, eccentric shaft 50, first guide bearing 51, saw blade clearance groove 52, positioning groove 53, guide shaft 54, second guide bearing 55, etc., these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A vertical band saw machine, comprising a vertically arranged bow frame (1), wherein an upper mounting seat (2) and a lower mounting seat (3) are respectively provided at the upper and lower ends of the bow frame (1), wherein a driven wheel (4) and a driving wheel (5) are respectively provided in the upper and lower mounting seats (2) and the lower mounting seat (3), and a band saw blade (6) is wound around the outer diameter of the driven wheel (4) and the driving wheel (5), and wherein: The lower mounting seat (3) is provided with a driving wheel drive assembly (7), the bow portion of the bow frame (1) is provided with a workbench (8) for supporting a workpiece, the upper mounting seat (2) is provided with a tension adjustment mechanism (9) for adjusting the tension of the band saw blade (6), and the bow frame (1) is also provided with a band saw blade guide mechanism (10) capable of reducing vibration and jumping of the band saw blade (6).

2. The vertical band saw according to claim 1, characterized in that: The tension adjustment mechanism (9) includes an upper mounting plate (11) arranged in the upper mounting seat (2), a positioning slide groove (12) is vertically provided on the upper mounting plate (11), a positioning slider (13) is slidably connected in the positioning slide groove (12), a driven shaft (14) is provided on the side of the positioning slider (13) near the band saw blade (6), the driven wheel (4) is sleeved on the driven shaft (14), a connecting bearing (15) is provided between the driven wheel (4) and the driven shaft (14), and a rack transmission component (16) capable of adjusting the vertical height of the positioning slider (13) in the positioning slide groove (12) is provided between the other side of the positioning slider (13) and the upper mounting seat (2).

3. The vertical band saw according to claim 2, characterized in that: The rack transmission assembly (16) includes a transmission plate (17) fixedly connected to the side wall of the positioning slider (13) and distributed vertically, and the side wall of the transmission plate (17) is provided with transmission teeth (18) distributed vertically, and the upper mounting seat (2) is provided with a driving gear (19) that meshes with the transmission teeth (18) for transmission, and the outer end of the upper mounting seat (2) is provided with a gear driver (20), and the output end of the gear driver (20) is connected to the driving gear (19).

4. The vertical band saw according to claim 3, characterized in that: A moving guide structure (21) is also provided between the transmission plate (17) and the upper mounting plate (11) for providing vertical guidance when the transmission plate (17) moves vertically.

5. The vertical band saw according to claim 4, characterized in that: The movable guide structure (21) includes dovetail grooves (22) arranged on the side walls of the upper mounting plate (11) and located on both sides of the adjustment groove (12), the dovetail grooves (22) are distributed vertically, and a dovetail slider (23) is provided on the side walls of the transmission plate (17) to slide with the dovetail grooves (22).

6. The vertical band saw according to any one of claims 2 to 5, characterized in that: The band saw blade guide mechanism (10) includes a guide seat (24) respectively arranged at the upper and lower ends of the workbench (8) and connected to the bow frame (1), and a plurality of guide bearing groups (49) distributed vertically are provided on the side wall of the guide seat (24), and each group of the guide bearing groups (49) includes an eccentric shaft symmetrically arranged on the side wall of the guide seat (24), and a plurality of first guide bearings (51) are sleeved on the eccentric shaft (50). The two sides of the band saw blade (6) are respectively abutted against the horizontally adjacent first guide bearings (51). The side wall of the guide seat (24) is also provided with a vertically distributed saw blade clearance groove (52) and a horizontally distributed positioning groove (53), and a guide shaft (54) is provided in the positioning groove (53). A second guide bearing (55) is sleeved on the guide shaft (54), and the back end of the band saw blade (6) is abutted against the outer ring of the second guide bearing (55).

7. The vertical band saw according to claim 6, characterized in that: The guide seat (24) at the upper end of the workbench (8) is connected to the upper mounting seat (2) through a vertical adjustment structure (25), and the vertical adjustment structure (25) includes a T-shaped guide rail (26) arranged on the side wall of the upper mounting plate (11) and distributed vertically. The upper end of the guide seat (24) is connected to an adjustment plate (27) passing through the upper mounting seat (2), and the bottom end of the adjustment plate (27) is provided with a vertical adjustment groove (28) slidingly matched with the T-shaped guide rail (26). A vertical locking groove (29) is vertically penetrated on the adjustment plate (27), and a fixing bolt (30) is passed through the vertical locking groove (29) for fixing the adjustment plate (27) to the T-shaped guide rail (26) after the adjustment plate (27) is vertically adjusted. The T-shaped guide rail (26) is provided with a plurality of bolt holes (31) distributed vertically.

8. The vertical band saw according to claim 7, characterized in that: The upper end of the guide seat (24) is connected to the adjustment plate (27) through a horizontal adjustment structure (32), and the horizontal adjustment structure (32) includes a T-shaped horizontal slide rail (33) arranged at the bottom end of the adjustment plate (27). The upper end of the guide seat (24) is provided with an upper horizontal plate (34), and the upper end of the upper horizontal plate (34) is provided with a horizontal slide groove (35) that slides with the T-shaped horizontal slide rail (33). The upper horizontal plate (34) is provided with a horizontal locking groove (36) distributed along the horizontal direction, and a locking bolt (37) connected to the T-shaped horizontal slide rail (33) is passed through the horizontal locking groove (36), and the T-shaped horizontal slide rail (33) is provided with a plurality of locking screw holes distributed along the horizontal direction.

9. The vertical band saw according to any one of claims 2 to 5, characterized in that: The driving wheel drive assembly (7) includes a spindle driver (39) arranged on the outer wall of the lower mounting seat (3) through a mounting frame, a lower mounting plate (40) is provided in the lower mounting seat (3), a driving shaft (41) is passed through the lower mounting plate (40), the driving wheel (5) is sleeved on the driving shaft (41), and the output end of the spindle driver (39) is connected to the driving shaft (41) through a reducer.

10. The vertical band saw according to claim 6, characterized in that: A transverse adjustment structure (43) is provided between the guide seat (24) at the lower end of the workbench (8) and the lower mounting seat (3), and the transverse adjustment structure (43) includes a T-shaped transverse slide rail (44) arranged at the top end of the lower mounting seat (3). The guide seat (24) at the lower end of the workbench (8) is provided with a lower horizontal plate (45) at its lower end, and a transverse slide groove (46) that slides with the T-shaped transverse slide rail (44) is provided at the bottom end of the lower horizontal plate (45). A transverse locking groove (47) is provided through the lower horizontal plate (45), and a fastening bolt (48) connected to the T-shaped transverse slide rail (44) is provided in the transverse locking groove (47). The T-shaped transverse slide rail (44) is provided with a plurality of fastening screw holes distributed horizontally.

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