Horizontal band sawing machine with band saw convenient to assemble and disassemble

Abstract

The invention belongs to the technical field of band sawing machines, and particularly relates to a horizontal band sawing machine with a band saw convenient to assemble and disassemble, which comprises a wheel carrier, a driven wheel and a driving wheel are rotationally arranged at two ends of the surface of the wheel carrier respectively, and the band saw is in transmission connection between the driven wheel and the driving wheel; two groups of adjustable arms are symmetrically distributed on the scale in a sliding connection mode, each group of adjustable arms can be locked on the scale, a bearing seat is arranged at the bottom of each group of adjustable arms, arc-shaped sliding grooves are formed in the two sides of each bearing seat, and arc-shaped protruding blocks in sliding connection with the arc-shaped sliding grooves are arranged at the positions, corresponding to the arc-shaped sliding grooves, of the bottom of each adjustable arm. Each bearing seat is provided with a band saw groove, the two ends of the scaleplate are fixedly connected with two scaleplate frames respectively, each scaleplate frame is fixedly connected with the surface of the wheel frame, and the band saw penetrates through each band saw groove. The band saw can be in a natural stretching state during disassembly and assembly, so that the band saw can be conveniently disassembled and assembled by a worker, and meanwhile, the fit state between the band saw and the driven wheel and the driving wheel can be ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of band sawing machines, in particular to a horizontal band sawing machine which is convenient for loading and unloading the band saw. Background Art

[0002] Horizontal band saws are divided into semi-automatic, fully automatic, and CNC types according to their functions. They can also be divided into double-column and scissor types. They are mainly used for sawing various metal materials such as alloy structural steel, medium carbon steel, low alloy steel, heat-resistant touch steel SKT, high-alloy steel, special alloy steel and stainless steel, bearing steel, acid-resistant steel, straightening steel, etc.

[0003] Common band saw machines usually use a driving wheel and a driven wheel to drive the band saw, and use a guide wheel to twist the band saw to a certain angle so that the working area of ​​the band saw is perpendicular to the processing platform. After long-term use, the band saw, as a consumable part, will wear out or even break and will no longer be able to perform cutting work. At this time, a new band saw needs to be replaced. The traditional band saw replacement method is cumbersome and inconvenient for loading and unloading the band saw, which will affect the factory's processing efficiency.

[0004] A Chinese patent with authorization announcement number CN108067681B discloses a horizontal band saw machine that is easy to load and unload a band saw, including a saw frame, the saw frame is also provided with two symmetrically distributed band saw wheels and a band saw installed on the two band saw wheels, a retaining ring is fixedly provided on one side of the band saw wheel and a receiving cavity is opened on the other side, a block mechanism is provided in the receiving cavity, the block mechanism includes a plurality of evenly distributed rotating blocks hinged to the band saw wheel at one end and a moving part that is slidably connected to the band saw wheel and drives the plurality of rotating blocks to rotate, the moving part moves to drive the rotating block to move and enable it to protrude from the outer surface of the band saw wheel, when the band saw needs to be replaced, the moving part in the moving receiving cavity drives the rotating block to rotate, so that the top of the rotating block is lower than the outer surface of the band saw wheel, thereby realizing the band saw being sleeved on the band saw wheel.

[0005] However, there are still the following problems to be solved: 1. In actual use scenarios, the band saw needs to be in a tensioned state to work stably. The traditional way is to change the wheelbase between the driving wheel and the driven wheel. The reduced wheelbase makes the band saw looser for easy loading and unloading, and the increased wheelbase can tension the band saw and adjust the tensioning force. However, in the above-mentioned patent, the wheelbase between the driving wheel and the driven wheel is fixed, so the band saw cannot be tensioned, and the band saw in a tensioned state is difficult to install in the above-mentioned patent.

[0006] 2. The traditional way of loading and unloading band saws is to adjust the tension by adjusting the wheel base, but it usually requires repeated manual adjustment and debugging, which wastes time and affects efficiency. In addition, workers need to have certain debugging experience to debug the appropriate tension, which is not conducive to use by inexperienced workers.

[0007] 3. In the traditional method, the band saw is in a torsion state as a whole during the tension adjustment process. During the tensioning process, the fit between the driven wheel and the band saw is not good, which will affect the stability of the subsequent band saw operation. Workers are usually required to hold auxiliary tools such as crowbars to adjust the fit between the band saw and the driven wheel while tensioning. This method is inconvenient to operate and has high requirements on the workers' experience.

[0008] 4. The existing band saw machine has no safety measures for adjusting the tension. Once the tension of the band saw is too large due to operator error or mechanical failure, it is easy to cause the band saw to break during use. In addition, it is easy for unrelated personnel to accidentally change the adjusted tension, affecting the normal operation of the equipment. Summary of the invention

[0009] In order to overcome the deficiencies of the prior art, the present invention solves the technical problem of providing a rotatable bearing seat and ensuring that the rotation center of the bearing seat coincides with the center point of the band saw cross section, so that when installing the band saw, it is not necessary to twist the band saw so that the band saw maintains a natural shape during installation, thereby facilitating workers to install the band saw. Since the band saw is not twisted during installation, the fit between the band saw and the driven wheel and the driving wheel is good, avoiding workers from manually adjusting the fit, and facilitating installation. The band saw tension is adjusted by providing a foot switch, and the connection and disconnection of the male connector and the female connector are controlled by providing a lock, thereby effectively avoiding malfunctions and damage caused by accidental touches. The pressure sensor is used to detect the tension in real time. When the tension reaches an appropriate level, the connection between the female connector and the male connector can be automatically disconnected to avoid excessive or insufficient tension due to insufficient experience of personnel. The operation is convenient and the adjustment is accurate.

[0010] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a horizontal band sawing machine which is convenient for loading and unloading the band saw, comprising: A wheel frame, wherein a driven wheel and a driving wheel are rotatably arranged at both ends of the wheel frame surface, and a band saw is transmission-connected between the driven wheel and the driving wheel; A base, wherein a clamp is fixedly connected to the middle of the base; A ruler, wherein two groups of adjustable arms are symmetrically distributed and slidably connected on the ruler, each group of adjustable arms can be locked on the ruler, a bearing seat is arranged at the bottom of each group of adjustable arms, arc-shaped sliding grooves are opened on both sides of each bearing seat, an arc-shaped protrusion slidably connected to the arc-shaped sliding groove is arranged at the bottom of each adjustable arm at a position corresponding to the arc-shaped sliding groove, and each bearing seat is provided with a band saw groove.

[0011] Among them, the wheel frame is tilted above the base, and two groups of cylinder frames are symmetrically distributed and fixedly connected on the wheel frame between the driven wheel and the driving wheel. Each group of cylinder frames is fixedly connected to a vertical electric drive cylinder, and the extended end of each electric drive cylinder is fixedly connected to the surface of the base. Two scale frames are fixedly connected to both ends of the ruler, and each scale frame is fixedly connected to the surface of the wheel frame. The band saw passes through each band saw groove, and a tension adjustment component is provided on the back of the wheel frame at the corresponding position of the driven wheel.

[0012] Furthermore, the tension adjustment component includes a slide rail, which is fixedly connected to the back of the wheel frame at a position corresponding to the driven wheel, a sliding frame is slidably connected to the slide rail, a movable wheel axle is slidably connected to the sliding frame, an adjustment groove is opened on the wheel frame at a position corresponding to the movable wheel axle, the movable wheel axle has an axial portion, the axial portion of the movable wheel axle passes through the adjustment groove and is rotatably connected to the driven wheel, and a pressure sensor is arranged between the sliding frame and the movable wheel axle.

[0013] Furthermore, a lead screw is rotatably connected inside the slide rail, and the lead screw is threadedly connected to the sliding frame. The lead screw passes through the inside of the movable wheel axle and slides relative to the movable wheel axle. A gear reduction box is fixedly connected to the back of the wheel frame, and the power output end of the gear reduction box is transmission-connected to the end of the lead screw extending out of the slide rail, and the power input end of the gear reduction box is transmission-connected to a servo motor, and the slide rail is fixedly connected to the wheel frame.

[0014] Furthermore, a control box is fixedly connected to one side of the base, a connecting male head is fixedly connected to one end of the control box, a connecting rod seat is fixedly connected to the inner side of the control box, a third connecting rod is slidably connected in the connecting rod seat, an end of the third connecting rod close to the connecting male head is fixedly connected to a connecting female head, the connecting female head can be plugged with the connecting male head, an end of the connecting male head extending out of the control box is electrically connected to a foot switch, and the connecting female head is electrically connected to the servo motor.

[0015] Furthermore, a lock is provided on the surface of the control box, a lock core part of the lock is fixedly connected to a first connecting rod, an end of the first connecting rod away from the lock is hinged to a second connecting rod, an end of the second connecting rod away from the first connecting rod is hinged to a third connecting rod, and a torsion spring is provided in the control box at the outside of the lock, and both ends of the torsion spring are respectively fixedly connected to the inner wall of the control box and the first connecting rod.

[0016] Furthermore, an electromagnetic valve frame is fixedly connected to the inner wall of the control box at one side of the third connecting rod, and an electromagnetic valve with a spring is fixedly connected to the electromagnetic valve frame. The push rod part of the electromagnetic valve passes through the electromagnetic valve frame and is fixedly connected to a locking tooth. A locking groove is provided on the side of the third connecting rod close to the locking tooth.

[0017] Furthermore, each of the bearing seats is fixedly connected to a group of roller seats at both sides of the band saw groove, each of the roller seats is rotatably connected to the bearing seat, each of the rollers can fit closely with the band saw and roll relative to it, each of the bearing seats is fixedly connected to a group of sliding sleeves on both sides of the bottom, each group of sliding sleeves is slidably connected to a locking rod, a spring is arranged between the bottom end of each locking rod and the corresponding sliding sleeve, a hook locking plate is fixedly connected to the outer side of each group of adjustable arms, and the top end of each locking rod can be engaged with the hook locking plate.

[0018] Furthermore, the wheel frame is rotatably connected to a driving wheel axle at a position corresponding to the driving wheel, one end of the driving wheel axle extending out of the wheel frame is fixedly connected to the driving wheel, and the end of the driving wheel axle away from the driving wheel is fixedly connected to a worm gear, and a cover covering the worm gear is fixedly connected to the back of the wheel frame, and a worm gear meshingly connected to the worm gear is rotatably connected inside the cover.

[0019] Furthermore, the wheel frame is fixedly connected to a group of brackets at one side of the cover, a first pulley is rotatably connected between the brackets, one end of the worm gear extending out of the cover is fixedly connected to a second pulley, a transmission belt is transmission-connected between the second pulley and the first pulley, a drive motor is fixedly connected to the back side of the wheel frame at one side of the bracket, and a power output end of the drive motor passes through the bracket and is transmission-connected to the first pulley.

[0020] Furthermore, two symmetrical protective covers are respectively provided on the surface of the wheel frame at the driven wheel and the driving wheel, each of the protective covers is fixedly connected to a hinge on the end face, the movable end of each hinge is fixedly connected to the wheel frame, two guide sliders are fixedly connected to the back of the wheel frame, each of the guide sliders is slidably connected with a sliding rod, the bottom end of each sliding rod is fixedly connected to the base, and a bridge frame is fixedly connected between the top ends of the two sliding rods.

[0021] In summary, compared with the prior art, the beneficial effects of the present invention are: (1) By providing a rotatable bearing seat and ensuring that the rotation center of the bearing seat coincides with the center point of the cross section of the band saw, it is not necessary to twist the band saw when installing the band saw so that the band saw can maintain a natural shape during installation, thereby facilitating workers to install the band saw. In addition, since the band saw is not twisted during installation, the fit between the band saw and the driven wheel and the driving wheel is good, avoiding the need for workers to manually adjust the fit, thereby facilitating installation.

[0022] (2) The band saw tension can be adjusted by setting a foot switch, and the connection and disconnection of the male connector and the female connector can be controlled by setting a lock, thereby effectively avoiding malfunctions and damage caused by accidental touch. The pressure sensor can detect the tension in real time. When the tension reaches the appropriate level, the connection between the female connector and the male connector can be automatically disconnected to avoid excessive or insufficient tension due to lack of experience. The operation is convenient and the adjustment is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0024] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0025] Figure 3 This is a three-dimensional schematic diagram from another perspective of this patent.

[0026] Figure 4 This is a three-dimensional schematic diagram of the present patent when disassembling the band saw.

[0027] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0028] Figure 6 This is a schematic diagram of the structure of the driven wheel in this patent.

[0029] Figure 7 This is a schematic diagram of the structure of the driving wheel in this patent.

[0030] Figure 8 This is a schematic diagram of the structure of the bearing seat in this patent.

[0031] Fig. 9 This is a schematic diagram of the structure of the control box in this patent.

[0032] Description of reference numerals: base 10; fixture 11; electric drive cylinder 12; wheel frame 13; guide slider 14; slide rod 15; bridge frame 16; hinge 17; protective cover 18; driven wheel 19; movable wheel shaft 20; sliding frame 21; pressure sensor 22; slide rail 23; lead screw 24; gear reduction box 25; servo motor 26; adjustment groove 27; driving wheel 28; driving wheel shaft 29; worm wheel 30; worm 31; cover 32; driving motor 33; bracket 34; first pulley 35; second pulley 36; transmission belt 37; Cylinder frame 38; band saw 39; scale frame 40; scale 41; adjustable arm 42; bearing seat 43; band saw groove 44; roller seat 45; roller 46; arc-shaped slide groove 47; arc-shaped protrusion 48; hook lock plate 49; sleeve 50; locking rod 51; spring 52; control box 53; lock 54; torsion spring 55; first connecting rod 56; second connecting rod 57; third connecting rod 58; connecting rod seat 59; connecting female head 60; connecting male head 61; foot switch 62; solenoid valve frame 63; solenoid valve 64; locking tooth 65; locking groove 66. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1:

[0034] like Figure 1-9 As shown, a horizontal band saw machine which is convenient for loading and unloading band saws comprises a wheel frame 13, on which two groups of symmetrical cylinder frames 38 are fixedly connected, each group of cylinder frames 38 is fixedly connected to a vertical electric drive cylinder 12, and the extended ends of the two electric drive cylinders 12 are fixedly connected to a base 10, a driving wheel shaft 29 is rotatably connected at one end of the wheel frame 13, and the end of the driving wheel shaft 29 extending out of the wheel frame 13 is fixedly connected to a driving wheel 28, and an adjusting groove 27 is provided at the end of the wheel frame 13 away from the driving wheel 28, in which the axial part of the movable wheel shaft 20 is slidably connected, and the end of the axial part of the movable wheel shaft 20 extending out of the adjusting groove 27 is rotatably connected to a driven wheel 19, and a band saw 39 is transmission-connected between the driven wheel 19 and the driving wheel 28, and a clamp 11 is fixedly provided on the surface of the base 10 below the band saw 39.

[0035] The driven wheel 19 and the driving wheel 28 are provided to drive the band saw 39 to operate, and the workpiece clamped in the clamp 11 is cut by coordinating the lifting and lowering of the electric drive cylinder 12, thereby realizing the band saw cutting operation.

[0036] like Figure 1-9As shown, the surface of the wheel frame 13 is located between the two electric drive cylinders 12 and is fixedly connected to two scale frames 40, a scale 41 is fixedly connected between the ends of the two scale frames 40, and two groups of adjustable arms 42 are slidably connected to the scale 41, each group of adjustable arms 42 can be locked on the scale 41, and a bearing seat 43 is arranged at the bottom end of each group of adjustable arms 42, each bearing seat 43 is provided with a band saw groove 44, and the band saw 39 passes through each band saw groove 44, and a group of roller seats 45 are fixedly connected on both sides of the band saw groove 44 in each bearing seat 43, and a roller 46 is rotatably connected between each roller seat 45 and the bearing seat 43, and each roller 46 is in contact with the surface of the band saw 39 and rolls relatively, and arc-shaped slide grooves 47 are opened on both sides of each bearing seat 43, and an arc-shaped protrusion 48 slidably connected to the arc-shaped slide groove 47 is arranged at the corresponding position of the arc-shaped slide groove 47 at the bottom end of each adjustable arm 42, and the rotation center of each bearing seat 43 coincides with the center point of the cross section of the band saw 39.

[0037] By providing a rotatable supporting seat 43 and ensuring that the rotation center of the supporting seat 43 coincides with the center point of the cross section of the band saw 39, it is possible to install the band saw without twisting the band saw so that the band saw can maintain a natural shape during installation, thereby facilitating workers to install the band saw. Furthermore, since the band saw is not twisted during installation, the band saw has a good fit with the driven wheel 19 and the driving wheel 28, thus avoiding workers from manually adjusting the fit and facilitating installation.

[0038] like Figure 1-9 As shown, a group of sliding sleeves 50 are symmetrically distributed and fixedly connected on both sides of the bottom of each bearing seat 43, a locking rod 51 is slidably connected in each group of sliding sleeves 50, a spring 52 surrounding the outside of the locking rod 51 is arranged between the bottom end of each locking rod 51 and the corresponding sliding sleeve 50, a hook locking plate 49 is fixedly arranged on the surface of each group of adjustable arms 42, and the top end of each locking rod 51 can be clamped with the hook locking plate 49.

[0039] By providing the locking rod 51 and the hook locking piece 49, it is convenient for workers to push the supporting seat 43 to twist the band saw to a vertical position downward after installing the band saw and adjusting the tensioning force, so that the band saw can cut the workpiece conveniently. The supporting seat 43 is fixed by the clamping of the locking rod 51 and the hook locking piece 49 to ensure the stability of the band saw 39 and the supporting seat 43 during operation.

[0040] like Figure 1-9As shown, a slide rail 23 is fixedly connected to the back of the wheel frame 13 at a position corresponding to the driven wheel 19, a sliding frame 21 is slidably connected in the slide rail 23, a movable wheel axle 20 is slidably connected in the sliding frame 21, an adjusting groove 27 is opened on the wheel frame 13 at a position corresponding to the movable wheel axle 20, the movable wheel axle 20 has an axial portion, the axial portion of the movable wheel axle 20 passes through the adjusting groove 27 and is rotatably connected to the driven wheel 19, a pressure sensor 22 is arranged between the sliding frame 21 and the movable wheel axle 20, a lead screw 24 is rotatably connected in the slide rail 23, the lead screw 24 is threadedly connected to the sliding frame 21, the lead screw 24 passes through the inside of the movable wheel axle 20 and slides relative to the movable wheel axle 20, a gear reduction box 25 is fixedly connected to the back of the wheel frame 13, the power output end of the gear reduction box 25 is transmission-connected to one end of the lead screw 24 extending out of the slide rail 23, the power input end of the gear reduction box 25 is transmission-connected to a servo motor 26, and the slide rail 23 is fixedly connected to the wheel frame 13.

[0041] By setting the sliding frame 21 to slide in the sliding rail 23, the position of the movable wheel axle 20 can be adjusted by driving the lead screw 24, so that the driven wheel 19 can tighten and loosen the band saw 39, which is convenient for loading and unloading and can adjust the tension of the band saw 39. By setting the pressure sensor 22, the pressure between the sliding frame 21 and the movable wheel axle 20 can be detected, and the tension force applied by the driven wheel 19 to the band saw 39 can be calculated, which is convenient for real-time monitoring and adjustment of the tension force.

[0042] like Figure 1-9 As shown, a control box 53 is fixedly connected to one side of the base 10, a connecting male head 61 is fixedly connected to one end of the control box 53, a connecting rod seat 59 is fixedly connected to the inner side of the control box 53, a third connecting rod 58 is slidably connected in the connecting rod seat 59, an end of the third connecting rod 58 close to the connecting male head 61 is fixedly connected to a connecting female head 60, the connecting female head 60 can be plugged with the connecting male head 61, an end of the connecting male head 61 extending out of the control box 53 is electrically connected to a foot switch 62, the connecting female head 60 is electrically connected to the servo motor 26, a lock 54 is provided on the surface of the control box 53, a lock core part of the lock 54 is fixedly connected to a first connecting rod 56, and the first One end of the connecting rod 56 away from the lock 54 is hinged with a second connecting rod 57, and one end of the second connecting rod 57 away from the first connecting rod 56 is hinged with the third connecting rod 58. A torsion spring 55 is arranged in the control box 53 at the outside of the lock 54, and the two ends of the torsion spring 55 are respectively fixedly connected to the inner wall of the control box 53 and the first connecting rod 56, and a solenoid valve frame 63 is fixedly connected to the inner wall of the control box 53 at one side of the third connecting rod 58. A solenoid valve 64 with its own spring is fixedly connected to the solenoid valve frame 63, and a push rod part of the solenoid valve 64 passes through the solenoid valve frame 63 and is fixedly connected with a locking tooth 65. A locking groove 66 is provided on the side of the third connecting rod 58 close to the locking tooth 65.

[0043] The foot switch 62 is provided to control the adjustment of the tension of the band saw 39, and the lock 54 is provided to control the connection and disconnection between the male connector 61 and the female connector 60, thereby effectively avoiding malfunctions and damages caused by accidental touches. The pressure sensor 22 is used to detect the tension in real time. When the tension reaches an appropriate level, the connection between the female connector 60 and the male connector 61 can be automatically disconnected to avoid excessive or insufficient tension due to lack of experience. The operation is convenient and the adjustment is accurate.

[0044] like Figure 1-9 As shown, the end of the driving wheel shaft 29 away from the driving wheel 28 is fixedly connected to a worm wheel 30, the back of the wheel frame 13 is fixedly connected to a mask 32 covering the worm wheel 30, and a worm 31 meshing and drivingly connected with the worm wheel 30 is rotatably connected in the mask 32. The wheel frame 13 is fixedly connected to a group of brackets 34 on one side of the mask 32, and a first pulley 35 is rotatably connected between the brackets 34. The end of the worm 31 extending out of the mask 32 is fixedly connected to a second pulley 36, and a transmission belt 37 is transmission-connected between the second pulley 36 and the first pulley 35. The back of the wheel frame 13 is fixedly connected to a bracket 34 on one side. A driving motor 33, the power output end of the driving motor 33 passes through the bracket 34 and is transmission-connected to the first pulley 35, and two symmetrical protective covers 18 are respectively provided on the surface of the wheel frame 13 at the driven wheel 19 and the driving wheel 28, and a hinge 17 is fixedly connected to the end face of each protective cover 18, and the movable end of each hinge 17 is fixedly connected to the wheel frame 13, and two guide sliders 14 are fixedly connected to the back of the wheel frame 13, and a slide rod 15 is slidably connected in each guide slider 14, and the bottom end of each slide rod 15 is fixedly connected to the base 10, and a bridge frame 16 is fixedly connected between the top ends of the two slide rods 15.

[0045] In this embodiment, initially, the operator connects the device to the power supply and control system. When the band saw 39 needs to be loaded and unloaded, first, the operator flips the two protective covers 18 upwards to fully expose the driven wheel 19 and the driving wheel 28, then pulls up the locking rod 51 to disengage it from the hook lock plate 49, and flips the supporting seat 43 outwards so that the band saw 39 no longer twists and returns to its natural state. At this time, the upper end opening of the band saw groove 44 is exposed to the outside.

[0046] Subsequently, the operator inserts the key into the lock 54 and rotates the lock 54. The lock core part of the lock 54 drives the first connecting rod 56 and the second connecting rod 57 to push the third connecting rod 58 to slide, so that the connecting female head 60 is connected to the connecting male head 61 and compresses the torsion spring 55. Under the action of the spring of the solenoid valve 64, the locking tooth 65 is inserted into the locking groove 66 to lock the third connecting rod 58. Subsequently, the operator controls the servo motor 26 through the foot switch 62 to drive the lead screw 24 to rotate and then drive the movable wheel shaft 20 and the sliding frame 21 to slide in the slide rail 23, so that the driven wheel 19 moves toward the direction of the driving wheel 28, thereby releasing the band saw 39. At this time, the operator can easily remove the band saw 39 from the driven wheel 19 and the driving wheel 28. Since the band saw groove 44 opening is exposed to the outside and the band saw 39 is no longer twisted, the band saw 39 can be easily removed from the supporting seat 43 to complete the disassembly of the band saw 39.

[0047] Subsequently, the operator puts the new band saw 39 between the driven wheel 19 and the driving wheel 28, and inserts the band saw 39 into the band saw slot 44. At this time, the new band saw 39 is also in a natural state and will not twist. Then, the operator controls the servo motor 26 to run in reverse through the foot switch 62, so that the driven wheel 19 moves away from the driving wheel 28. During this process, the band saw 39 is gradually pulled and tensioned, and the movable wheel shaft 20 will apply pressure to the pressure sensor 22. By reading the data of the pressure sensor 22 through the control system, the tension on the band saw 39 can be calculated.

[0048] During this process, since the band saw 39 is always in a naturally stretched state without twisting, in the process of pulling and tensioning the band saw 39, the band saw 39 is always in a good fit with the driven wheel 19 and the driving wheel 28, and there is no need for manual adjustment by the operator, thereby reducing the operator's experience requirements and facilitating the installation process.

[0049] After the tensioning force reaches the specified value, the control system automatically controls the solenoid valve 64 to retract, so that the locking tooth 65 disengages from the locking groove 66, and the torsion spring 55 releases its elasticity, pulling the third connecting rod 58 to quickly disconnect the connecting female head 60 and the connecting male head 61. At this time, the operator can no longer adjust the tensioning force through the foot switch 62, and the servo motor 26 is directly shut down to stop the tension adjustment, so as to avoid the operator's misoperation causing excessive tension and affecting normal work. In addition, since the lock 54 is set, the lock 54 cannot be turned without inserting the key, thereby effectively preventing unrelated persons from accidentally changing the tension of the band saw 39 and affecting normal work.

[0050] After the tension adjustment is completed, the operator manually fastens the support seat 43 so that the band saw 39 is twisted vertically downward to facilitate cutting processing, and pulls the locking rod 51 to clamp the locking rod 51 in the hook lock plate 49 so that the support seat 43 is locked to ensure that the band saw 39 always remains in a twisted state during operation. Finally, the protective cover 18 is re-fastened to complete the installation of the band saw 39. When the tension adjustment is stopped, the tension displayed by the system is slightly smaller than the actual tension on the band saw 39, so as to reserve the tension value that increases when the support seat 43 is fastened to twist the band saw 39. Embodiment 2:

[0051] A horizontal band sawing machine which is convenient for loading and unloading band saws. When the band sawing machine is working, the operator fixes the workpiece to be cut in the clamp 11, and can adjust the position of the adjustable arm 42 on the scale 41 and lock it according to the actual size of the workpiece, to ensure that the part of the band saw 39 between the two bearing seats 43 corresponds to the size of the workpiece, and then start the drive motor 33 through the control system. The drive motor 33 drives the driving wheel 28 to rotate through the transmission of the first pulley 35 and the second pulley 36 and the transmission of the worm wheel 30 and the worm 31, and then drives the band saw 39 to operate. Then the electric drive cylinder 12 is controlled to make the wheel frame 13 move downward as a whole, so that the band saw 39 gradually cuts the workpiece. In this process, the band saw 39 located between the two bearing seats 43 is parallel to the cutting direction to ensure the smoothness of the cut surface. After the cutting is completed, the various components are reset, the workpiece on the clamp 11 is removed, and the next cutting process is awaited.

[0052] The lock 54 , servo motor 26 , electric cylinder 12 , drive motor 33 , clamp 11 , etc. mentioned above are mature existing technologies and will not be described in detail herein.

[0053] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0054] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0055] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A horizontal band sawing machine that is easy to load and unload the band saw, characterized in that: The horizontal band sawing machine that is convenient for loading and unloading the band saw comprises: A wheel frame (13), wherein a driven wheel (19) and a driving wheel (28) are rotatably arranged at both ends of the surface of the wheel frame (13), and a band saw (39) is transmission-connected between the driven wheel (19) and the driving wheel (28); A base (10), wherein a clamp (11) is fixedly connected to the middle of the base (10); A ruler (41), wherein two groups of adjustable arms (42) are symmetrically distributed and slidably connected on the ruler (41), each group of the adjustable arms (42) can be locked on the ruler (41), a bearing seat (43) is arranged at the bottom of each group of the adjustable arms (42), arc-shaped sliding grooves (47) are arranged on both sides of each bearing seat (43), an arc-shaped protrusion (48) slidably connected to the arc-shaped sliding groove (47) is arranged at the bottom of each adjustable arm (42), and a band saw groove (44) is arranged on each bearing seat (43); The wheel frame (13) is tilted above the base (10), and two groups of cylinder frames (38) are symmetrically distributed and fixedly connected between the driven wheel (19) and the driving wheel (28) on the wheel frame (13), and each group of the cylinder frames (38) is fixedly connected to a vertical electric drive cylinder (12), and the extended end of each electric drive cylinder (12) is fixedly connected to the surface of the base (10), and two scale frames (40) are respectively fixedly connected to the two ends of the scale (41), and each scale frame (40) is fixedly connected to the surface of the wheel frame (13), and the band saw (39) passes through each band saw groove (44), and a tension adjustment component is arranged on the back of the wheel frame (13) at a position corresponding to the driven wheel (19).

2. A horizontal band sawing machine that is easy to load and unload band saws according to claim 1, characterized in that: The tension adjustment component comprises a slide rail (23), the slide rail (23) is fixedly connected to the back of the wheel frame (13) at a position corresponding to the driven wheel (19), a sliding frame (21) is slidably connected inside the slide rail (23), a movable wheel axle (20) is slidably connected inside the sliding frame (21), an adjustment groove (27) is provided on the wheel frame (13) at a position corresponding to the movable wheel axle (20), the movable wheel axle (20) has an axial portion, the axial portion of the movable wheel axle (20) passes through the adjustment groove (27) and is rotatably connected to the driven wheel (19), and a pressure sensor (22) is provided between the sliding frame (21) and the movable wheel axle (20).

3. A horizontal band sawing machine that is easy to load and unload band saws according to claim 2, characterized in that: A lead screw (24) is rotatably connected inside the slide rail (23), and the lead screw (24) is threadedly connected to the sliding frame (21). The lead screw (24) passes through the inside of the movable wheel shaft (20) and slides relatively with the movable wheel shaft (20). A gear reduction box (25) is fixedly connected to the back of the wheel frame (13). The power output end of the gear reduction box (25) is transmission-connected to one end of the lead screw (24) extending out of the slide rail (23). The power input end of the gear reduction box (25) is transmission-connected to a servo motor (26). The slide rail (23) is fixedly connected to the wheel frame (13).

4. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 2, characterized in that: A control box (53) is fixedly connected to one side of the base (10), a connecting male head (61) is fixedly connected to one end of the control box (53), a connecting rod seat (59) is fixedly connected to the inner side of the control box (53), a third connecting rod (58) is slidably connected to the inner side of the connecting rod seat (59), a connecting female head (60) is fixedly connected to one end of the third connecting rod (58) close to the connecting male head (61), the connecting female head (60) can be plugged with the connecting male head (61), an end of the connecting male head (61) extending out of the control box (53) is electrically connected to a foot switch (62), and the connecting female head (60) is electrically connected to the servo motor (26).

5. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 4, characterized in that: A lock (54) is arranged on the surface of the control box (53), a lock core part of the lock (54) is fixedly connected to a first connecting rod (56), an end of the first connecting rod (56) away from the lock (54) is hinged to a second connecting rod (57), an end of the second connecting rod (57) away from the first connecting rod (56) is hinged to a third connecting rod (58), a torsion spring (55) is arranged on the outside of the lock (54) in the control box (53), and two ends of the torsion spring (55) are respectively fixedly connected to the inner wall of the control box (53) and the first connecting rod (56).

6. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 5, characterized in that: An electromagnetic valve frame (63) is fixedly connected to the inner wall of the control box (53) at one side of the third connecting rod (58), and an electromagnetic valve (64) with a spring is fixedly connected to the electromagnetic valve frame (63). The push rod part of the electromagnetic valve (64) passes through the electromagnetic valve frame (63) and is fixedly connected to a locking tooth (65). A locking groove (66) is provided on one side of the third connecting rod (58) close to the locking tooth (65).

7. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 1, characterized in that: A group of roller seats (45) are fixedly connected to each bearing seat (43) at both sides of the band saw groove (44); a roller (46) is rotatably connected between each roller seat (45) and the bearing seat (43); each roller (46) can closely fit with the band saw (39) and roll relative to it; a group of sliding sleeves (50) are fixedly connected to both sides of the bottom of each bearing seat (43); each group of sliding sleeves (50) is slidably connected to a locking rod (51); a spring (52) is provided between the bottom end of each locking rod (51) and the corresponding sliding sleeve (50); a hook locking plate (49) is fixedly connected to the outer side of each group of adjustable arms (42); and the top end of each locking rod (51) can be snap-fitted with the hook locking plate (49).

8. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 1, characterized in that: The wheel frame (13) is rotatably connected to a driving wheel shaft (29) at a position corresponding to the driving wheel (28); one end of the driving wheel shaft (29) extending out of the wheel frame (13) is fixedly connected to the driving wheel (28); one end of the driving wheel shaft (29) away from the driving wheel (28) is fixedly connected to a worm wheel (30); a cover (32) covering the worm wheel (30) is fixedly connected to the back of the wheel frame (13); a worm (31) meshingly connected to the worm wheel (30) is rotatably connected inside the cover (32).

9. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 8, characterized in that: The wheel frame (13) is fixedly connected to a group of brackets (34) at one side of the cover (32), a first pulley (35) is rotatably connected between the brackets (34), one end of the worm (31) extending out of the cover (32) is fixedly connected to a second pulley (36), a transmission belt (37) is transmission-connected between the second pulley (36) and the first pulley (35), and a drive motor (33) is fixedly connected to the back side of the wheel frame (13) at one side of the bracket (34), and a power output end of the drive motor (33) passes through the bracket (34) and is transmission-connected to the first pulley (35).

10. The horizontal band sawing machine for easy loading and unloading of the band saw according to claim 1, characterized in that: The surface of the wheel frame (13) is provided with two symmetrical protective covers (18) respectively located at the driven wheel (19) and the driving wheel (28), each of the protective covers (18) is fixedly connected with a hinge (17) on the end face, and the movable end of each hinge (17) is fixedly connected to the wheel frame (13). The back of the wheel frame (13) is fixedly connected with two guide sliders (14), and each of the guide sliders (14) is slidably connected with a slide rod (15), and the bottom end of each slide rod (15) is fixedly connected to the base (10), and a bridge frame (16) is fixedly connected between the top ends of the two slide rods (15).

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