A movable device for a multi-saw blade band saw machine

Abstract

The present invention provides a movable device for a multi-saw blade band saw machine, comprising an active saw wheel shaft core, an active saw wheel, a driven saw wheel shaft core, a driven saw wheel, and a saw blade, wherein the active saw wheel is rotatably arranged on the active saw wheel shaft core through an active saw wheel kit, and the driven saw wheel is rotatably arranged on the driven saw wheel shaft core through a driven saw wheel kit, and the saw blade is wound around the active saw wheel and the driven saw wheel, and also comprises an active saw wheel adjustment device, and the active saw wheel adjustment device is used to adjust the position of the central axis of the active saw wheel; the active saw wheel adjustment device comprises an active member and a transmission member, and the active member and the transmission member are arranged on the active saw wheel shaft core, and the active member and the transmission member are linked, and the transmission member and the active saw wheel kit are linked. The present invention is provided with an active saw wheel adjustment device and a driven saw wheel adjustment device, so that the spacing of the saw blades can be adjusted, and a single multi-saw blade band saw machine can cut plates of various specifications, thereby reducing production costs and time, improving work efficiency, and greatly saving floor space.

Description

Technical Field

[0001] The invention relates to the technical field of wood processing equipment, and more particularly to a movable device of a multi-saw blade band saw machine. Background Art

[0002] A band saw is a sawing machine that performs continuous rotary motion in the same direction for sawing. It has high efficiency and a small sawing path. It is the most widely used main saw in China's timber processing equipment. Its main purpose is woodworking sawing operations. Through the cutting operation of the band saw, the wood is formed into sheet plates with a certain thickness, which is convenient for operators to transport and use.

[0003] A band saw machine includes a machine body, a sawing device arranged on the machine body, and a work table mechanism for conveying wood to the sawing device. The sawing device includes a pair of active saw wheels and a driven saw wheel, and a saw blade wound around the active saw wheel and the driven saw wheel. A multi-saw blade band saw machine has a sawing device including at least two pairs of active saw wheels and a driven saw wheel, and saw blades wound around the active saw blade and the driven saw blade, respectively, so that wood can be cut into multiple pieces of board at one time, thereby improving work efficiency and reducing production costs.

[0004] However, the blade spacing in the existing multi-blade band saw machine cannot be adjusted, that is, one multi-blade band saw machine can only cut boards of one specification. According to different customer needs, multiple multi-blade band saw machines need to be purchased, which increases production costs and time, reduces work efficiency, and requires a larger area to place these multi-blade band saw machines. Summary of the invention

[0005] The object of the present invention is to provide a movable device for a multi-saw blade band saw machine, which is provided with an active saw wheel adjustment device and a driven saw wheel adjustment device so that the spacing of the saw blades can be adjusted to overcome the shortcomings of the prior art.

[0006] The technical solution to solve the technical problem of the present invention is: a movable device of a multi-saw blade band saw machine, including an active saw wheel shaft core, an active saw wheel, a driven saw wheel shaft core, a driven saw wheel, and a saw blade, wherein the active saw wheel shaft core and the driven saw wheel shaft core are arranged on the body of the multi-saw blade band saw machine, the active saw wheel is rotatably arranged on the active saw wheel shaft core through an active saw wheel kit, the driven saw wheel is rotatably arranged on the driven saw wheel shaft core through a driven saw wheel kit, the saw blade is wound around the active saw wheel and the driven saw wheel, and also includes an active saw wheel adjustment device, the active saw wheel adjustment device is used to adjust the position of the central axis of the active saw wheel; the active saw wheel adjustment device includes an active member and a transmission member, the active member and the transmission member are arranged on the active saw wheel shaft core, the active member is linked with the transmission member, and the transmission member is linked with the active saw wheel kit.

[0007] The active part is a gear shaft, and the driven part is a rack; the gear shaft is movably arranged on the active saw wheel shaft core, and both ends of the gear shaft can be against the active saw wheel kit. One end of the gear shaft is rotatably arranged on the active saw wheel shaft core, and the other end extends into the active saw wheel shaft core and extends to the rack. A gear is arranged on the end of the gear shaft close to the rack, and teeth are arranged on the rack, and the gear is meshed with the teeth.

[0008] A gear shaft positioning seat is provided on the active saw wheel shaft core, and the end of the gear shaft away from the rack is rotatably set on the gear shaft positioning seat. A swivel is provided on the end of the gear shaft close to the rack, and the swivel is sleeved on the gear shaft and set in the active saw wheel shaft core.

[0009] The active saw wheel shaft core is provided with a fixing plate, and the gear shaft positioning seat is arranged on the fixing plate.

[0010] It also includes a driven saw wheel adjusting device, which is used to adjust the position of the central axis of the driven saw wheel. The adjustment direction of the active saw wheel adjusting device is the same as that of the driven saw wheel adjusting device.

[0011] The driven saw wheel adjustment device includes a positioning adjustment seat and an eccentric adjustment screw. The positioning adjustment seat is sleeved on the driven saw wheel shaft core and is arranged on the driven saw wheel kit. The eccentric adjustment screw is rotatably arranged on the positioning adjustment seat and is threadedly connected with the driven saw wheel shaft core. The positioning adjustment seat is linked to the driven saw wheel kit.

[0012] The driven saw wheel adjustment device also includes a locking screw, which is threadedly connected to the positioning adjustment seat, and one end of the locking screw can be against the driven saw wheel shaft core.

[0013] The driven saw wheel shaft core is also provided with a saw blade tensioning device, which is used for setting the tension of the saw blade, and the tensioning direction of the saw blade tensioning device is perpendicular to the adjustment direction of the driven saw wheel adjusting device; the saw blade tensioning device includes a hydraulic cylinder and a tensioning shaft which is driven to extend and retract by the hydraulic cylinder, and the tensioning shaft is arranged on the driven saw wheel shaft core, and the tensioning shaft can pass through the positioning adjustment seat to abut against the driven saw wheel kit.

[0014] The number of active saw wheels is the same as the number of driven saw wheels, and there are at least two active saw wheels and two driven saw wheels each; the number of racks and the number of gear shafts of the active saw wheel adjustment device are the same as the number of active saw wheels, the racks correspond to the active saw wheels one-to-one, and the gear shafts correspond to the racks one-to-one; the number of positioning adjustment seats and the number of eccentric adjustment screws of the driven saw wheel adjustment device are the same as the number of driven saw wheels, the positioning adjustment seats correspond to the driven saw wheels one-to-one, and the eccentric adjustment screws correspond to the positioning adjustment seats one-to-one; the number of tensioning shafts of the saw blade tensioning device is the same as the number of driven saw wheels, and the tensioning shafts correspond to the driven saw wheels one-to-one.

[0015] The active saw wheel kit comprises an active saw wheel inner sleeve and an active saw wheel bearing, wherein the active saw wheel inner sleeve is sleeved on the active saw wheel shaft core, the inner ring of the active saw wheel bearing is sleeved on the active saw wheel inner sleeve, and the active saw wheel is sleeved on the outer ring of the active saw wheel bearing; the driven saw wheel kit comprises a driven saw wheel inner sleeve and a driven saw wheel bearing, wherein the driven saw wheel inner sleeve is sleeved on the driven saw wheel shaft core, the inner ring of the driven saw wheel bearing is sleeved on the driven saw wheel inner sleeve, and the driven saw wheel is sleeved on the outer ring of the driven saw wheel bearing.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a movable device for a multi-saw blade band saw machine, which is provided with an active saw wheel adjusting device for adjusting the position of the central axis of the active saw wheel, and is further provided with a driven saw wheel adjusting device, so that the central axis of the driven saw wheel can be adjusted to be located in the same horizontal / vertical plane as the central axis of the active saw wheel, so that the spacing of the saw blades can be adjusted. There is no need to purchase multiple multi-saw blade band saw machines. A single multi-saw blade band saw machine can cut plates of various specifications, thereby reducing production costs and time, improving work efficiency, and greatly saving floor space.

[0018] In addition, the present invention is also provided with a saw blade tensioning device to achieve the tensioning setting of the saw blade, thereby further improving the performance of the band saw machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a multi-saw blade band saw machine in Embodiment 1 of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the active saw wheel assembly, the driven saw wheel assembly, the sawing motor and the sawing transmission device in the first embodiment of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the active saw wheel assembly and the active saw wheel adjusting device in the first embodiment of the present invention.

[0022] Figure 4 yes Figure 3 Schematic diagram of partial structural decomposition.

[0023] Figure 5 It is a structural schematic diagram of the active saw wheel shaft core and the active saw wheel adjustment device in the first embodiment of the present invention.

[0024] Figure 6 It is a structural cross-sectional view of the active saw wheel assembly and the active saw wheel adjusting device in the first embodiment of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the driven saw wheel assembly and the driven saw wheel adjusting device in the first embodiment of the present invention.

[0026] Figure 8 yes Figure 7 Schematic diagram of partial structural decomposition.

[0027] Fig. 9 It is a structural schematic diagram of the driven saw wheel and the driven saw wheel adjusting device in the first embodiment of the present invention.

[0028] Fig.10 It is a structural cross-sectional view of the driven saw wheel assembly and the driven saw wheel adjusting device in the first embodiment of the present invention.

[0029] Fig.11 It is another structural cross-sectional view of the driven saw wheel assembly and the driven saw wheel adjusting device in the first embodiment of the present invention.

[0030] Fig.12 It is a schematic structural diagram of a multi-saw blade band saw machine in Embodiment 2 of the present invention.

[0031] Fig.13 It is a structural schematic diagram of the active saw wheel shaft core and the active saw wheel adjusting device in the second embodiment of the present invention.

[0032] Fig.14 It is a structural cross-sectional view of the active saw wheel assembly and the active saw wheel adjusting device in the second embodiment of the present invention.

[0033] Fig.15 It is a structural cross-sectional view of the driven saw wheel assembly and the driven saw wheel adjusting device in the second embodiment of the present invention.

[0034] Fig.16 It is another structural sectional view of the driven saw wheel assembly and the driven saw wheel adjusting device in the second embodiment of the present invention.

[0035] Fig.17 It is a schematic structural diagram of a multi-saw blade band saw machine in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection. It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Embodiment 1

[0040] See also Figure 1-11 A movable device of a multi-saw blade band saw machine includes an active saw wheel shaft core 2, an active saw wheel 20, a driven saw wheel shaft core 3, a driven saw wheel 30, a saw blade 4, an active saw wheel adjusting device, and a driven saw wheel adjusting device.

[0041] The movable device is on the body of the multi-saw blade band saw machine. The multi-saw blade band saw machine in this embodiment is a vertical multi-saw blade band saw machine. The body includes a frame 1, a support 10, a beam seat 11, and a work table mechanism 12. The support 10 is gantry-shaped and is arranged on the frame 1. The beam seat 11 is slidably arranged on the support 10 through a beam seat sliding device and is driven to move by a beam seat driving device. The work table mechanism 12 transports materials to the saw blade 4.

[0042] The beam seat sliding device includes a beam seat slider and a beam seat slide rail 131 . The beam seat slider is arranged on the beam seat 11 . The beam seat slide rail 131 is arranged on the support 10 . The beam seat slider is slidably connected to the beam seat slide rail 131 .

[0043] The beam seat driving device includes a beam seat driving motor 14, a beam seat reducer, and a beam seat ball screw 142. The beam seat 11 is connected with the beam seat ball screw 142, and the horizontal movement is achieved through the cooperation of the beam seat driving motor 14 and the beam seat reducer.

[0044] The movable device is arranged on the beam seat 11. In this embodiment, two sets of movable devices are arranged, so two beam seats 11 are symmetrically arranged on the support 10, and the movable devices are arranged on the beam seats 11 respectively and move with the beam seats 11. Among them, the moving directions of the two beam seats 11 are opposite.

[0045] The active saw wheel shaft core 2 and the driven saw wheel shaft core 3 are arranged on the crossbeam seat 11; the active saw wheel 20 is rotatably arranged on the active saw wheel shaft core 2 through the active saw wheel inner sleeve 21 and the active saw wheel bearing 22, and the driven saw wheel 30 is rotatably arranged on the driven saw wheel shaft core 3 through the driven saw wheel inner sleeve 31 and the driven saw wheel bearing 32; the central axis of the active saw wheel 20 and the central axis of the driven saw wheel 30 are located on the same vertical plane.

[0046] Specifically, the active saw wheel inner sleeve 21 is sleeved on the active saw wheel shaft core 2, the inner ring of the active saw wheel bearing 22 is fixedly sleeved on the active saw wheel inner sleeve 21, and the active saw wheel 20 is fixedly sleeved on the outer ring of the active saw wheel bearing 22; the driven saw wheel inner sleeve 31 is sleeved on the driven saw wheel shaft core 3, the inner ring of the driven saw wheel bearing 32 is fixedly sleeved on the driven saw wheel inner sleeve 31, and the driven saw wheel 30 is fixedly sleeved on the outer ring of the driven saw wheel bearing 32.

[0047] Among them, the cross section of the active saw wheel shaft core 2 is rectangular, the sleeve hole of the active saw wheel inner sleeve 21 is rectangular, the width of the sleeve hole of the active saw wheel inner sleeve 21 in the horizontal direction is greater than the width of the active saw wheel shaft core 2 in the horizontal direction, and the width of the sleeve hole of the active saw wheel inner sleeve 21 in the vertical direction is consistent with the width of the active saw wheel shaft core 2 in the vertical direction, so that the active saw wheel inner sleeve 21 can move in the horizontal direction on the active saw wheel shaft core 2. Similarly, the cross section of the driven saw wheel shaft core 3 is rectangular, the sleeve hole of the driven saw wheel inner sleeve 31 is rectangular, and the width of the sleeve hole of the driven saw wheel inner sleeve 31 in the horizontal and vertical directions are greater than the width of the driven saw wheel shaft core 3 in the horizontal and vertical directions, so that the driven saw wheel inner sleeve 31 can move on the driven saw wheel shaft core 3.

[0048] An active saw wheel limiting assembly is provided on the active saw wheel shaft core 2 to limit the active saw wheel 20 on the active saw wheel shaft core 2. The active saw wheel limiting assembly includes an active saw wheel pressure plate 23 and an active saw wheel locking block 231. Active saw wheel shaft core grooves 232 are provided on both sides of the front end of the active saw wheel shaft core 2. The active saw wheel pressure plate 23 is sleeved on the front end of the active saw wheel shaft core 2. The active saw wheel locking block 231 is arranged in the active saw wheel shaft core groove 232 and is fixedly connected to the active saw wheel pressure plate 23 and the active saw wheel shaft core 2. An active saw wheel spacer 233 is also provided between the active saw wheel pressure plate 23 and the active saw wheel 20 located at the front end of the active saw wheel shaft core 2.

[0049] Similarly, a driven saw wheel limiting assembly is provided on the driven saw wheel shaft core 3 to limit the driven saw wheel 30 on the driven saw wheel shaft core 3. The driven saw wheel limiting assembly includes a driven saw wheel pressure plate 33 and a driven saw wheel locking block 331. A driven saw wheel shaft core groove 332 is provided on both sides of the front end of the driven saw wheel shaft core 3. The driven saw wheel pressure plate 33 is sleeved on the front end of the driven saw wheel shaft core 3. The driven saw wheel locking block 331 is arranged in the driven saw wheel shaft core groove 332 and is fixedly connected to the driven saw wheel pressure plate 33 and the driven saw wheel shaft core 3. Among them, a driven saw wheel spacer 333 is also provided between the driven saw wheel pressure plate 33 and the driven saw wheel 30 located at the front end of the driven saw wheel shaft core 3. In addition, in order to enhance the overall structural strength, a connecting rod 40 is provided between the front end of the active saw wheel shaft core 2 and the front end of the driven saw wheel shaft core 3.

[0050] The number of active saw wheels 20 is the same as the number of driven saw wheels 30. There are at least two active saw wheels 20 and at least two driven saw wheels 30. The present invention is provided with four pairs of active saw wheels 20 and driven saw wheels 30. The outer diameters of the active saw wheels 20 are different in size, and the outer diameters of the active saw wheels 20 are stacked in descending order to form a conical step-type structure; similarly, the outer diameters of the driven saw wheels 30 are different in size, and the outer diameters of the driven saw wheels 30 are stacked in descending order to form a conical step-type structure. The active saw wheels 20 correspond to the driven saw wheels 30 one by one, and the saw blades 4 are respectively wound on the active saw wheels 20 and the corresponding driven saw wheels 30.

[0051] The active saw wheel 20 is driven to rotate by the sawing motor 15; the sawing motor 15 is arranged on the crossbeam seat 11 and is connected to the active saw wheel 20 through the sawing transmission device. The sawing transmission device includes an active synchronous pulley 16, a driven synchronous pulley, a synchronous belt 161, a transmission shaft 162, a transmission belt 163, and a transmission wheel 164.

[0052] The driving synchronous pulley 16 is arranged on the output shaft of the sawing motor 15, the driven synchronous pulley is arranged on the transmission shaft 162, and the synchronous belt 161 is wound around the driving synchronous pulley 16 and the driven synchronous pulley; the transmission wheels 164 are arranged on the transmission shaft 162, and the number thereof is the same as the number of the active saw wheel 20, and the transmission wheels 164 correspond to the active saw wheel bearings 22 one by one, and the transmission belt 163 is wound around the transmission wheels 164 and the outer rings of the corresponding active saw wheel bearings 22. The output shaft of the sawing motor 15 rotates to drive the transmission shaft 162 to rotate, and the rotation of the transmission shaft 162 drives the transmission wheel 164 to rotate, and then drives the active saw wheel 20 to rotate. In addition, a transmission belt tensioning wheel is also arranged on the crossbeam seat 11 to realize the tensioning setting of the transmission belt 163.

[0053] The active saw wheel adjustment device is arranged on the active saw wheel shaft core 2, and is used to adjust the position of the central axis of the active saw wheel 20. The active saw wheel adjustment device comprises a gear shaft 51 positioning seat 5, a gear shaft 51, and a rack 52. The number of the gear shaft 51 positioning seat 5, the number of the gear shaft 51, and the number of the rack 52 are the same as the number of the active saw wheel 20. The rack 52 corresponds to the active saw wheel 20 one by one, the gear shaft 51 corresponds to the rack 52 one by one, and the gear shaft 51 positioning seat 5 corresponds to the gear shaft 51 one by one.

[0054] The active saw wheel shaft core 2 is provided with an active saw wheel shaft core through hole 53 horizontally penetrating the active saw wheel shaft core 2 corresponding to the active saw wheel inner sleeve 21 . The rack 52 is movably arranged on the active saw wheel shaft core through hole 53 , and its two ends are against the corresponding sleeve holes of the active saw wheel inner sleeve 21 .

[0055] A concave cavity 54 is provided at the front end of the active saw wheel shaft core 2, and a fixing plate 55 is fixed to cover the concave cavity 54. The gear shaft 51 positioning seat 5 is horizontally arranged side by side in the concave cavity 54 and connected to the fixing plate 55. One end of the gear shaft 51 is rotatably arranged on the corresponding gear shaft 51 positioning seat 5 and extends through the fixing plate 55, and the other end extends into the active saw wheel shaft core 2 and extends to the corresponding rack 52.

[0056] A rotating ring is rotatably provided on one end of the gear shaft 51 close to the rack 52. The rotating ring is sleeved on the gear shaft 51 and fixed in the active saw wheel shaft core 2, so as to support one end of the gear shaft 51 and not restrict the rotation of the gear shaft 51. A gear 511 is provided on one end of the gear shaft 51 close to the rack 52. A tooth 521 is provided on the side of the rack 52 facing the gear shaft 51. The gear 511 meshes with the tooth 521 on the corresponding rack 52.

[0057] The rotation of the gear shaft 51 drives the gear 511 to rotate, and the meshing of the gear 511 and the teeth 521 causes the rack 52 to move axially. The movement of the rack 52 drives the corresponding active gear 511 to move, thereby realizing the adjustment of the central axis of the active saw wheel 20 in the horizontal direction.

[0058] The driven saw wheel adjustment device is arranged on the driven saw wheel shaft core 3, and is used to adjust the position of the central axis of the driven saw wheel 30. The driven saw wheel adjustment device comprises a positioning adjustment seat 6, a positioning adjustment spacer 61, an eccentric adjustment screw 62, and a locking screw 63. The number of the positioning adjustment seat 6 and the number of the positioning adjustment spacer 61 are the same as the number of the driven saw wheel 30. The positioning adjustment seat 6 corresponds to the driven saw wheel 30 one by one, and the positioning adjustment spacer 61 corresponds to the positioning adjustment seat 6 one by one.

[0059] The positioning adjustment seat 6 is sleeved on the driven saw wheel shaft core 3 and is arranged on the sleeve hole of the driven saw wheel inner sleeve 31. The width of the positioning adjustment seat 6 in the horizontal direction is greater than the width of the driven saw wheel shaft core 3 in the horizontal direction and is suitable for the width of the sleeve hole of the driven saw wheel inner sleeve 31 in the horizontal direction, so that the positioning adjustment seat 6 can move in the horizontal direction on the driven saw wheel shaft core 3, and the driven saw wheel inner sleeve 31 moves in the horizontal direction with the positioning adjustment seat 6. The positioning adjustment spacer 61 is sleeved on one side of the positioning adjustment seat 6, and the positioning adjustment spacer 61 cannot pass through the sleeve hole of the driven saw wheel inner sleeve 31, thereby limiting the position of the positioning adjustment seat 6.

[0060] The driven saw wheel shaft core 3 is provided with a threaded hole 64 horizontally penetrating the driven saw wheel shaft core 3 at the corresponding positioning adjustment seat 6, one end of the eccentric adjustment screw 62 is rotatably arranged on the corresponding positioning adjustment seat 6, and the other end is threadedly connected with the threaded hole 64. The eccentric adjustment screw 62 is rotated to drive the positioning adjustment seat 6 to move in the horizontal direction, so as to adjust the central axis of the driven saw wheel 30 in the horizontal direction. Among them, the eccentric adjustment screw 62 is arranged close to the positioning adjustment spacer 61; the positioning adjustment spacer 61 and the positioning adjustment seat 6 are provided with a gap 65 corresponding to the eccentric adjustment screw 62.

[0061] The locking screw 63 can pass through the positioning adjustment spacer 61 and be threadedly connected to the positioning adjustment seat 6, and the end thereof close to the driven saw wheel shaft core 3 can be against the driven saw wheel shaft core 3. The locking screw 63 and the eccentric adjustment screw 62 are located on the same side and can move in the horizontal direction; there is at least one locking screw 63. In this embodiment, two locking screws 63 are provided; the setting of the locking screw 63 is to further limit the position of the positioning adjustment seat 6 and the driven saw wheel shaft core 3. The eccentric adjustment screw 62 and the locking screw 63 are located on the left or right side of the driven saw wheel shaft core 3.

[0062] A saw blade tensioning device is also provided on the driven saw wheel shaft core 3 to realize the tensioning setting of the saw blade 4, and the tensioning direction of the saw blade tensioning device is perpendicular to the adjustment direction of the driven saw wheel adjustment device. The saw blade tensioning device includes a hydraulic cylinder and a tensioning shaft 41 driven by the hydraulic cylinder to extend and retract. The number of tensioning shafts 41 is the same as the number of the driven saw wheel 30, and corresponds to the positioning adjustment seat 6 one by one.

[0063] The width of the positioning adjustment seat 6 in the vertical direction is smaller than the width of the sleeve hole of the driven saw wheel inner sleeve 31 in the vertical direction, so that the driven saw wheel inner sleeve 31 can move in the vertical direction on the positioning adjustment seat 6. The tensioning shaft 41 is movably arranged at the corresponding positioning adjustment seat 6 of the driven saw wheel shaft core 3, and the corresponding positioning adjustment seat 6 is provided with a positioning adjustment seat through hole 601, which allows the tensioning shaft 41 to extend and abut against the sleeve hole of the driven saw wheel inner sleeve 31. In this embodiment, the extension direction of the tensioning shaft 41 is vertical, and the extension direction of the tensioning shaft 41 is upward.

[0064] The steps for adjusting the saw blade spacing in this embodiment are as follows:

[0065] S1. Rotate the gear shaft 51 to move the rack 52 axially, and the movement of the rack 52 drives the corresponding driving gear 511 to move, so as to adjust the central axis of each active saw wheel 20 in the horizontal direction;

[0066] S2. Rotate the eccentric adjustment screw 62 so that the central axis of the driven saw wheel 30 and the central axis of the active saw wheel 20 are in the same vertical plane, and then screw the locking screw 63 onto the positioning adjustment seat 6, and make the locking screw 63 against the driven saw wheel shaft 3;

[0067] S3. The tensioning shaft 41 is driven to extend through the hydraulic cylinder so that the tensioning shaft 41 abuts against the inner sleeve 31 of the driven saw wheel, thereby achieving the tensioning setting of the saw blade 4.

[0068] Embodiment 2

[0069] See also Figure 12-16 , which is different from the first embodiment, the multi-saw blade band saw machine of this embodiment is a horizontal multi-saw blade band saw machine, and the movable device of this embodiment is only provided with one group, and accordingly, only one beam seat 11 is provided, and the beam seat 11 is driven by the beam seat driving device to move in the vertical direction.

[0070] In the movable device of this embodiment, the central axis of the active saw wheel 20 and the central axis of the driven saw wheel 30 are located on the same horizontal plane;

[0071] The width of the sleeve hole of the active saw wheel inner sleeve 21 in the vertical direction is greater than the width of the active saw wheel shaft core 2 in the vertical direction, and the width of the sleeve hole of the active saw wheel inner sleeve 21 in the horizontal direction is consistent with the width of the active saw wheel shaft core 2 in the horizontal direction, so that the active saw wheel inner sleeve 21 can move in the vertical direction on the active saw wheel shaft core 2;

[0072] The active saw wheel shaft core through hole 53 vertically penetrates the active saw wheel shaft core 2, and the gear shaft positioning seat 5 is vertically arranged side by side in the concave cavity 54. The gear shaft 51 rotates to drive the gear 511 to rotate, and the meshing of the gear 511 and the teeth 521 causes the rack 52 to move axially. The movement of the rack 52 drives the corresponding active gear 511 to move, so as to realize the adjustment of the central axis of the active saw wheel 20 in the vertical direction.

[0073] The width of the positioning adjustment seat 6 in the vertical direction is greater than the width of the driven saw wheel shaft core 3 in the vertical direction, and is compatible with the width of the sleeve hole of the driven saw wheel inner sleeve 31 in the vertical direction, so that the positioning adjustment seat 6 can move in the vertical direction on the driven saw wheel shaft core 3, and the driven saw wheel inner sleeve 31 moves in the vertical direction with the positioning adjustment seat 6;

[0074] The threaded hole 64 vertically penetrates the driven saw wheel shaft core 3, and the eccentric adjustment screw 62 is rotated to drive the positioning adjustment seat 6 to move in the vertical direction, so as to adjust the central axis of the driven saw wheel 30 in the vertical direction; the locking screw 63 also moves in the vertical direction, and the eccentric adjustment screw 62 and the locking screw 63 are located on the lower side of the driven saw wheel shaft core 3;

[0075] The extension direction of the tensioning shaft 41 is horizontal, and the extension direction of the tensioning shaft 41 is opposite to the active saw wheel 20 .

[0076] The steps for adjusting the saw blade spacing in this embodiment are as follows:

[0077] S1. Rotate the gear shaft 51 to move the rack 52 axially, and the movement of the rack 52 drives the corresponding driving gear 511 to move, so as to adjust the central axis of each active saw wheel 20 in the vertical direction;

[0078] S2. Rotate the eccentric adjustment screw 62 so that the central axis of the driven saw wheel 30 is in the same horizontal plane as the central axis of the active saw wheel 20, and then screw the locking screw 63 onto the positioning adjustment seat 6, and make the locking screw 63 against the driven saw wheel shaft 3;

[0079] S3. The tensioning shaft 41 is driven to extend through the hydraulic cylinder so that the tensioning shaft 41 abuts against the inner sleeve 31 of the driven saw wheel, thereby achieving the tensioning setting of the saw blade.

[0080] The rest of the structure is the same as that of the first embodiment.

[0081] Embodiment 3

[0082] See also Fig.17 The multi-saw blade band saw machine of this embodiment is also a horizontal multi-saw blade band saw machine. What is different from the second embodiment is that this embodiment does not have a support, a beam seat sliding device, or a beam seat driving device. The beam seat 11 is fixed on the frame, and the movable device will not move with the beam seat 11.

[0083] The rest of the structure is the same as that of the second embodiment.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents. Any improvements not made through creative work shall be included within the scope of protection of the present invention.

Claims

1. A movable device for a multi-saw blade band saw machine, comprising an active saw wheel shaft core, an active saw wheel, a driven saw wheel shaft core, a driven saw wheel, and a saw blade, wherein the active saw wheel shaft core and the driven saw wheel shaft core are arranged on a body of the multi-saw blade band saw machine, the active saw wheel is rotatably arranged on the active saw wheel shaft core through an active saw wheel set, the driven saw wheel is rotatably arranged on the driven saw wheel shaft core through a driven saw wheel set, and the saw blade is wound around the active saw wheel and the driven saw wheel, characterized in that: It also includes an active saw wheel adjustment device, which is used to adjust the position of the central axis of the active saw wheel; the active saw wheel adjustment device includes an active member and a transmission member, which are arranged on the active saw wheel shaft core, the active member is linked with the transmission member, and the transmission member is linked with the active saw wheel kit; The driving member is a gear shaft, and the transmission member is a rack; the gear shaft is movably arranged on the active saw wheel shaft core, and the two ends of the rack are against the active saw wheel kit, one end of the gear shaft is rotatably set on the active saw wheel shaft core, and the other end extends into the active saw wheel shaft core and extends to the rack; a gear is provided on the end of the gear shaft close to the rack, and teeth are provided on the rack, and the gear is meshed with the teeth; a gear shaft positioning seat is provided on the active saw wheel shaft core, and the end of the gear shaft away from the rack is rotatably set on the gear shaft positioning seat, and a swivel is provided on the end of the gear shaft close to the rack, and the swivel is sleeved on the gear shaft and arranged in the active saw wheel shaft core; the active saw wheel shaft core is provided with a fixing plate, and the gear shaft positioning seat is arranged on the fixing plate; it also includes a driven saw wheel adjusting device, and the driven saw wheel adjusting device is used to adjust the position of the central axis of the driven saw wheel, and the adjustment direction of the active saw wheel adjusting device is consistent with that of the driven saw The adjustment directions of the wheel adjustment devices are the same; the driven saw wheel adjustment device includes a positioning adjustment seat and an eccentric adjustment screw, the positioning adjustment seat is sleeved on the driven saw wheel shaft core and is arranged on the driven saw wheel kit, the eccentric adjustment screw is rotatably arranged on the positioning adjustment seat and is threadedly connected with the driven saw wheel shaft core, and the positioning adjustment seat is linked with the driven saw wheel kit; the driven saw wheel adjustment device also includes a locking screw, the locking screw is threadedly connected with the positioning adjustment seat, and one end of the locking screw is against the driven saw wheel shaft core; the driven saw wheel shaft core is also provided with a saw blade tensioning device, the saw blade tensioning device is used for the tensioning setting of the saw blade, and the tensioning direction of the saw blade tensioning device is perpendicular to the adjustment direction of the driven saw wheel adjustment device; the saw blade tensioning device includes a hydraulic cylinder and a tensioning shaft driven to be retracted and extended by the hydraulic cylinder, the tensioning shaft is arranged on the driven saw wheel shaft core, and the tensioning shaft passes through the positioning adjustment seat and is against the driven saw wheel kit.

2. The movable device of the multi-saw blade band saw machine according to claim 1, characterized in that: The number of active saw wheels is the same as the number of driven saw wheels, and there are at least two active saw wheels and two driven saw wheels each; the number of racks and the number of gear shafts of the active saw wheel adjustment device are the same as the number of active saw wheels, the racks correspond to the active saw wheels one-to-one, and the gear shafts correspond to the racks one-to-one; the number of positioning adjustment seats and the number of eccentric adjustment screws of the driven saw wheel adjustment device are the same as the number of driven saw wheels, the positioning adjustment seats correspond to the driven saw wheels one-to-one, and the eccentric adjustment screws correspond to the positioning adjustment seats one-to-one; the number of tensioning shafts of the saw blade tensioning device is the same as the number of driven saw wheels, and the tensioning shafts correspond to the driven saw wheels one-to-one.

3. The movable device of the multi-saw blade band saw machine according to claim 1 or 2, characterized in that: The active saw wheel kit comprises an active saw wheel inner sleeve and an active saw wheel bearing, wherein the active saw wheel inner sleeve is sleeved on the active saw wheel shaft core, the inner ring of the active saw wheel bearing is sleeved on the active saw wheel inner sleeve, and the active saw wheel is sleeved on the outer ring of the active saw wheel bearing; the driven saw wheel kit comprises a driven saw wheel inner sleeve and a driven saw wheel bearing, wherein the driven saw wheel inner sleeve is sleeved on the driven saw wheel shaft core, the inner ring of the driven saw wheel bearing is sleeved on the driven saw wheel inner sleeve, and the driven saw wheel is sleeved on the outer ring of the driven saw wheel bearing.

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