Novel vertical band sawing machine

Abstract

The novel vertical band sawing machine comprises a base, a driving wheel, a guide wheel and an annular sawtooth belt, a vertical base is fixedly connected to the base, a workbench is fixedly connected to the lower side of a working notch in the middle of the vertical base, the driving wheel is rotationally arranged on the front side of the vertical base and located on the lower side of the workbench, and a sliding groove is formed in the position, on the upper side of the working notch, of the vertical base. A movable plate is arranged in the sliding groove in an up-and-down sliding mode, an adjusting mechanism used for controlling the movable plate to move up and down is arranged on the upper side of the vertical base, a connecting shaft is fixedly connected to the movable plate, and a penetrating hole for the connecting shaft to penetrate out forwards is formed in the vertical base in a front-and-back penetrating mode; the annular sawtooth belt is arranged between the guide wheel and the driving wheel in a matched mode, a positioning ring is arranged between the guide wheel and the vertical base, a plurality of balls are arranged on the circumference of the positioning ring, the balls are attached to the rear side of the guide wheel, the guide wheel is convenient to adjust, and stable cutting work of the annular sawtooth belt can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sawing machines, in particular to a novel vertical band sawing machine. Background Art

[0002] Vertical band saw is a common metal processing equipment, widely used in machinery manufacturing, metal processing and other industries. It mainly completes the cutting work by circulating the circular sawtooth belt between the driving wheel and the guide wheel. In the prior art, the tension of the circular sawtooth belt is crucial to ensure the cutting quality and the service life of the equipment, and the tension adjustment of the circular sawtooth belt is generally related to the distance between the guide wheel and the driving wheel. Therefore, the tension adjustment of the circular sawtooth belt can be achieved by adjusting the position of the guide wheel. However, there are some problems with traditional vertical band saws, such as:

[0003] 1. It is inconvenient to adjust some guide wheels: the guide wheels need to be disassembled before they can be adjusted, and the operation is more cumbersome.

[0004] 2. The structure of some guide wheels that are easy to adjust is unstable: the guide wheels are prone to shaking after long-term use, causing the annular serrated belt to deviate during the cutting process, affecting the cutting accuracy.

[0005] Therefore, how to design a vertical band sawing machine with stable structure, convenient adjustment and capable of achieving smooth cutting of annular sawtooth belt has become a technical problem to be solved urgently. Utility Model Content

[0006] The utility model provides a novel vertical band sawing machine, the guide wheel of which is easy to adjust and can realize the smooth cutting of the annular sawtooth belt, thus solving the above problems existing in the use process of the prior art.

[0007] The technical solution of the utility model is achieved as follows: a novel vertical band sawing machine comprises a base, a driving wheel, a guide wheel and an annular sawtooth belt, the base is fixedly connected with a stand, a working notch is penetrated in the middle of the stand, the stand is fixedly connected with a workbench at the lower side of the working notch, the driving wheel is rotatably arranged on the front side of the stand and is located at the lower side of the workbench, the driving mechanism is connected to the driving wheel, the stand is provided with a sliding groove on the upper side of the working notch, a movable plate is movably and slidably arranged in the sliding groove, an adjusting mechanism for controlling the movable plate to move up and down is arranged on the upper side of the stand, a connecting shaft is fixedly connected with the movable plate, a through hole is penetrated through the front and rear of the stand, the connecting shaft passes through the through hole forward, the guide wheel is rotatably connected to the connecting shaft, the annular sawtooth belt is cooperatively arranged between the guide wheel and the driving wheel, a slot for the annular sawtooth belt to pass through is provided on the workbench, a positioning ring is provided between the guide wheel and the stand, a plurality of balls are circumferentially arranged on the positioning ring, and the balls are attached to the rear side of the guide wheel.

[0008] Preferably, a plurality of connecting rods are fixedly connected between the movable plate and the positioning ring, and a vertical opening for the connecting rods to pass through is provided on the stand.

[0009] Preferably, a resistance ring is provided on the rear side of the guide wheel corresponding to the positioning ring, an arc-shaped ring groove is provided on the resistance ring, and the ball is resisted in the arc-shaped ring groove.

[0010] Preferably, the adjustment mechanism includes a screw rod rotatably arranged on the upper side of the stand, a nut seat is fixedly connected to the movable plate, the screw rod passes into the movable plate and cooperates with the nut seat thread, and a hand wheel is fixedly connected to the upper end of the screw rod.

[0011] Preferably, the rear side of the stand is threadedly connected with a supporting screw, the inner end of the supporting screw penetrates into the sliding groove and is fixedly connected with a pressure plate for pressing on the movable plate, and the outer end of the supporting screw is fixedly connected with a turning handle.

[0012] Preferably, three abutting screws are arranged on the rear seat of the stand, one of which is located below the slot and the other two are located above the slot.

[0013] Preferably, the driving mechanism includes a motor fixed on the base, the stand is rotatably connected to a rotating shaft at the lower side of the workbench, the driving wheel is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the output shaft of the motor.

[0014] In summary, the beneficial effects of the present invention are:

[0015] 1. The utility model can move the guide wheel by controlling the movable plate to move up and down in the sliding groove through the adjustment mechanism, thereby realizing the adjustment of the tension of the annular sawtooth belt, which is very convenient. In addition, through the setting of the positioning ring, the ball of the positioning ring is made to contact with the rear side of the guide wheel, thereby realizing the smooth rotation of the guide wheel and improving its structural stability, so as to realize the smooth cutting of the annular sawtooth belt.

[0016] 2. The positioning ring moves up and down synchronously with the movable plate through the connecting rod, which can ensure that the ball on the positioning ring is always in contact with the rear side of the guide wheel, so that the guide wheel can rotate stably no matter which position it is adjusted to.

[0017] 3. The setting of the holding screw can hold the pressure plate on the movable plate after the movable plate completes position adjustment, so that the movable plate maintains structural stability and is not prone to shaking, thereby further improving the structural stability of the guide wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure when observed from another angle;

[0021] Figure 3 It is a front view of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the cross-section structure in the AA direction;

[0023] Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A;

[0024] Figure 6 It is a schematic diagram of the structure of the guide wheel being exploded in the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the utility model after the guide wheel and the positioning ring are removed;

[0026] Figure 8It is a schematic diagram of the structure after the guide wheel, the annular serrated belt and a part of the stand are removed in the utility model.

[0027] In the figure: 10, base; 21, driving wheel; 22, motor; 23, rotating shaft; 31, guide wheel; 32, abutment ring; 321, arcuate ring groove; 40, annular serrated belt; 50, stand; 51, working notch; 52, sliding groove; 53, perforation; 54, vertical opening; 60, workbench; 61, slot; 71, movable plate; 72, connecting shaft; 73, positioning ring; 74, ball bearing; 75, connecting rod; 81, screw rod; 82, nut seat; 83, handwheel; 91, abutment screw; 92, pressure plate; 93, turning handle. DETAILED DESCRIPTION

[0028] The following will be combined with the attached embodiment of the utility model Figure 1-8 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example:

[0030] like Figures 1 to 8As shown, the utility model discloses a novel vertical band sawing machine, including a base 10, a driving wheel 21, a guide wheel 31 and an annular sawtooth belt 40, a stand 50 is fixedly connected to the base 10, and a working notch 51 is opened through the middle of the stand 50, and a workbench 60 is fixedly connected to the stand 50 at the lower side of the working notch 51, and the workbench 60 is used for placing objects for cutting, wherein the driving wheel 21 is rotatably arranged on the front side of the stand 50 and located at the lower side of the workbench 60, and a driving mechanism is connected to the driving wheel 21, and in addition, a sliding groove 52 is opened on the upper side of the working notch 51 of the stand 50, and a movable plate 71 is movably and slidably arranged in the sliding groove 52 up and down, and an adjusting mechanism for controlling the movable plate 71 to move up and down is arranged on the upper side of the stand 50, a connecting shaft 72 is fixedly connected to the movable plate 71, and a through hole 53 is opened through the front and back of the stand 50, and the connecting shaft 72 passes through the through hole 53 forward. The guide wheel 31 is rotatably connected to the connecting shaft 72, and the annular serrated belt 40 is cooperatively arranged between the guide wheel 31 and the driving wheel 21. Therefore, when the driving mechanism drives the driving wheel 21 to rotate, the driving wheel 21 can drive the annular serrated belt 40 to transmit on the driving wheel 21 and the guide wheel 31, thereby realizing the cutting of the object. A slot 61 for the annular serrated belt 40 to pass through is provided on the workbench 60. In order to improve the rotation stability of the guide wheel 31, the utility model is provided with a positioning ring 73 between the guide wheel 31 and the stand 50. A plurality of ball bearings 74 are circumferentially arranged on the positioning ring 73. The ball bearings 74 are rotatably arranged on the positioning ring 73. The ball bearings 74 are attached to the rear side of the guide wheel 31. This structure can help prevent the guide wheel 31 from shaking, so that the guide wheel 31 can always remain stable during the rotation process, improve its structural stability, and thus realize the smooth cutting work of the annular serrated belt 40.

[0031] In the present invention, in order to enable the positioning ring 73 to move up and down synchronously with the movable plate 71, four connecting rods 75 are fixedly connected between the movable plate 71 and the positioning ring 73, and a vertical opening 54 for the connecting rods 75 to pass through is opened on the stand 50. It should be noted that the positioning ring 73 and the guide wheel 31 are coaxially arranged. No matter which position the guide wheel 31 is driven and adjusted to by the movable plate 71, the relationship between the positioning ring 73 and the guide wheel 31 remains unchanged, and the ball 74 on the positioning ring 73 is always in contact with the rear side of the guide wheel 31, thereby improving the structural stability of the guide wheel 31.

[0032] Furthermore, a resistance ring 32 is provided on the rear side of the guide wheel 31 corresponding to the positioning ring 73. The resistance ring 32 is made of a wear-resistant metal material with a low friction coefficient. An arc-shaped annular groove 321 is provided on the resistance ring 32. The ball 74 resists in the arc-shaped annular groove 321. This structure can further improve the structural stability of the guide wheel 31 when it rotates.

[0033] In the present utility model, the adjustment mechanism specifically includes a screw rod 81 rotatably arranged on the upper side of the stand 50, and a nut seat 82 is fixedly connected to the movable plate 71. The screw rod 81 passes into the movable plate 71 and is threadedly matched with the nut seat 82. A hand wheel 83 is fixedly connected to the upper end of the screw rod 81. The screw rod 81 can be rotated by the hand wheel 83 to make the movable plate 71 move up and down. Note that the sliding groove 52 can only allow the movable plate 71 to move up and down.

[0034] In the present invention, the rear side of the stand 50 is threadedly connected with a supporting screw 91, the inner end of the supporting screw 91 penetrates into the sliding groove 52 and is fixedly connected with a pressure plate 92 for pressing on the movable plate 71, and the outer end of the supporting screw 91 is fixedly connected with a turning handle 93. Furthermore, three supporting screws 91 are provided on the rear seat of the stand 50, one of which is located below the slot 61, and the other two are located above the slot 61. Each supporting screw 91 is provided with a pressure plate 92 and a turning handle 93. The three supporting screws 91 can fix the movable plate 71 in a three-point manner. When the movable plate 71 needs to be moved up and down, the supporting screw 91 drives the pressure plate 92 to leave the movable plate 71 by rotating the turning handle 93, so that the movable plate 71 can be adjusted up and down. After the movable plate 71 completes the position adjustment, the pressure plate 92 is pressed on the movable plate 71, so that the movable plate 71 maintains a stable structure and is not prone to shaking, thereby further improving the structural stability of the guide wheel 31.

[0035] In the utility model, the driving mechanism includes a motor 22 fixed on the base 10, the stand 50 is rotatably connected to a rotating shaft 23 on the lower side of the workbench 60, the driving wheel 21 is fixedly connected to one end of the rotating shaft 23, and the other end of the rotating shaft 23 is connected to the output shaft of the motor 22, and the motor 22 drives the driving wheel 21 to rotate through the rotating shaft 23.

[0036] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel vertical band saw, comprising a base, a driving wheel, a guide wheel and an annular sawtooth belt, wherein a stand is fixedly connected to the base, a working notch is formed through the middle of the stand, and a workbench is fixedly connected to the stand at the lower side of the working notch, characterized in that: The driving wheel is rotatably arranged on the front side of the stand and is located at the lower side of the workbench, and the driving wheel is connected to a driving mechanism, and the stand is provided with a sliding groove on the upper side of the working notch, and a movable plate is provided in the sliding groove for sliding up and down. An adjusting mechanism for controlling the movable plate to move up and down is provided on the upper side of the stand, and a connecting shaft is fixedly connected to the movable plate, and a through hole is provided on the stand front and back, and the connecting shaft passes forward through the through hole, and the guide wheel is rotatably connected to the connecting shaft, and the annular serrated belt is cooperatively arranged between the guide wheel and the driving wheel, and a groove for the annular serrated belt to pass through is provided on the workbench, and a positioning ring is provided between the guide wheel and the stand, and a plurality of balls are circumferentially arranged on the positioning ring, and the balls are attached to the rear side of the guide wheel.

2. A novel vertical band saw according to claim 1, characterized in that: A plurality of connecting rods are fixedly connected between the movable plate and the positioning ring, and a vertical opening for the connecting rods to pass through is provided on the stand.

3. A novel vertical band saw according to claim 1, characterized in that: A resistance ring is arranged on the rear side of the guide wheel corresponding to the positioning ring, and an arcuate ring groove is provided on the resistance ring, and the ball is resisted in the arcuate ring groove.

4. A novel vertical band saw according to claim 1, characterized in that: The adjustment mechanism includes a screw rod rotatably arranged on the upper side of the stand, a nut seat is fixedly connected in the movable plate, the screw rod penetrates into the movable plate and cooperates with the nut seat thread, and a hand wheel is fixedly connected to the upper end of the screw rod.

5. A novel vertical band saw according to claim 1, characterized in that: The rear side of the stand is threadedly connected with a supporting screw, the inner end of the supporting screw penetrates into the sliding groove and is fixedly connected with a pressing plate for pressing on the movable plate, and the outer end of the supporting screw is fixedly connected with a turning handle.

6. A novel vertical band sawing machine according to claim 5, characterized in that: The supporting screws are provided with three at the rear seat of the stand, one of which is located below the slot and the other two are located above the slot.

7. A novel vertical band saw according to claim 1, characterized in that: The driving mechanism includes a motor fixed on the base, the stand is rotatably connected to a rotating shaft at the lower side of the workbench, the driving wheel is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the output shaft of the motor.

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