CN2169530Y - Portable strap sawing machine - Google Patents

Abstract

The utility model provides a portable band sawing machine which is mainly characterized in that the transmission mode adopts a three-wheel driving mode composed of an upper guide wheel, a drive wheel and a fixed guide wheel. The tension of the upper guide wheel can be adjusted. In addition, an adjustable work bench is provided with a positioning slide rail scale and a positioning baffle ruler which can conduct angle position and adjustment of both size and angle to a machined workpiece. An accessory barn, a sawing round support frame accessory, a safe power switch with a lock, etc. are arranged in a matching way. The utility model has the advantages of small size, light weight, compact structure, wide machining range and high machining precision, and can be used for sawing and cutting materials such as wood, plastics, leather, non-ferrous metal section materials, etc.

Description

Portable strap sawing machine

The utility model is a kind of portable small-sized wood craft machines that can be used for timber, plastics, leather, reach the sawing of non-ferrous metal section bar.

At present, the MJ333 of domestic production, MJ343 type wood working band sawing machine, its transmission is all adopted is two to take turns the kind of drive, and one of them is a driving wheel, and one is guide wheel, and two take turns and drive the circular saw blade rotation, finish the sawing work to timber.Because therefore the maximum processing dimension of workpiece will reach certain processing dimension by the decision of drive diameter in this structure, two drive diameters also must reach certain size and can't dwindle.So adopt the band sawing machine of the two-wheeled kind of drive, because two drive diameters are bigger, often exist that volume is big, heavy, the restricted shortcoming of the range of work, range of application also can only be confined to the occasion that wood-working factory, modelling shop etc. need not be moved.

The purpose of this utility model is the band sawing machine that will provide a kind of transmission system to be made of three drives, because in the three-wheel transmission system, the maximum processing dimension of workpiece and drive diameter are irrelevant, this kind band sawing machine can overcome two and take turns that the band sawing machine volume is big, heavy, the narrow shortcoming of range of application, under the prerequisite of not dwindling the workpiece processing dimension with the corresponding degree of being convenient to carry that narrows down to of band sawing machine type.

The purpose of this utility model is to realize like this.

The utility model is made up of running part, Working Table part, body part, auxiliary equipment, power section.

Wherein running part includes a transmission system of being made up of three drives, and one of them is adjustable tensioning upper block, and one is driving wheel, and one is stator ring.These three drives all are to process with aluminium alloy or engineering plastics, and the position of three-wheel is triangularly arranged in same plane.Circular saw blade is the three-wheel driven rotary thus, finishes the sawing work to timber.Because in this structure, circular saw blade is that three drives by triangular arrangement are driven, and takes turns in the drive mechanism trepan spacing to equal the drive diameter different with two, and the trepan spacing of the three-wheel kind of drive obviously strengthens also and has nothing to do with the drive diameter.Therefore adopt this three-wheel drive mechanism, the maximum processing dimension of workpiece and drive diameter are irrelevant, the drive diameter can be designed into minimum dimension by minimum bending radius and the minimum cornerite that circular saw blade allows, therefore under the prerequisite of not dwindling the workpiece processing dimension, can reach and make band sawing machine compact conformation, little, the lightweight purpose of volume.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing.

Fig. 1 is the drive mechanism schematic diagram of portable bandsaw machine.

Fig. 2 is the drive mechanism profile of portable bandsaw machine.

Fig. 3 is the work top vertical view of portable bandsaw machine.

Be elaborated below in conjunction with the concrete structure and the working condition of accompanying drawing to embodiment.

This portable bandsaw machine is made up of running part, Working Table part, body part, auxiliary equipment, power section five parts.

Running part is by adjustable tensioning upper block (1), and driving wheel (2), is regulated slide device (4) and formed stator ring (3).Driving wheel (2) is directly installed on the output shaft of motor, and stator ring (3) is installed on the frame (8) by a pair of ball bearing, and adjustable tensioning upper block (1) is installed in by a pair of ball bearing (21) and regulates on the slide device (4).

As shown in Figure 1.Driving wheel (2), stator ring (3), adjustable tensioning upper block (1) position are triangularly arranged in same vertical plane.Driving wheel (2) is a motor direct-drive, and circular saw blade (10) is stretched on the three-wheel, drives stator ring (3), adjustable tensioning upper block (1) rotates and finishes sawing work to timber.The diameter of three-wheel is pressed minimum bending radius and the design of minimum cornerite that circular saw blade allows, if will increase the range of work, should increase the centre-to-centre spacing between driving wheel (2) and the stator ring (3).

As shown in Figure 2.Regulating slide device (4) is made up of slide (19), hold-down screw (17), adjustable tensioning screw (16), deflection angle adjustment screw (18).Hold-down screw (17) is installed in slide (19) in the rectangle chute of frame (8), loosen hold-down screw (17), regulate adjustable tensioning screw (16), the related adjustable tensioning upper block of slide (19) (1) is moved up and down in chute, the tensioning degree of circular saw blade (10) is adjusted; Regulate deflection angle and adjust screw (18), slide (19) and adjustable tensioning upper block (1) are swung, thereby the control guide angle is adjusted the position of circular saw blade on adjustable tensioning upper block (1).

The Working Table part is made up of adjustable bed (5), bracket supports (6), positioning slide scale (23) and positioning chi (7).Wherein have an arc guide groove on the bracket supports (6), adjustable bed (5) is fixed on the frame (8) by bracket supports (6) by two hold-down screws.Loosen two hold-down screws, adjustable bed (5) can be along arc guide groove rotating freely (as shown in Figure 1) in horizontal axis is done 45 °.

As shown in Figure 3, on the table top of adjustable bed (5), a horizontal guide groove (25) vertical with the timber direction of feed is arranged, positioning slide scale (23) can be placed the line slip of wherein going forward side by side.Positioning slide scale (23) is marked with scale, and location retaining chi (7) has an arc guide groove, and location retaining chi (7) links to each other with positioning slide scale (23) with bearing pin.Hold-down screw (22) passes arc guide groove on the location retaining chi (7) and will locate slide sign chi (23) and be fixed in the horizontal guide groove (25) on the adjustable bed (5).Loosen hold-down screw (22), positioning slide scale (23) can carry out slippage along horizontal guide groove (25), and can be by the location of the scale on the positioning slide scale (23), to guarantee the precision of processing work.

In addition, on the table top of adjustable bed (5), also have one with the horizontal vertical vertical guide groove (26) of guide groove (25), positioning slide scale (23) also can be positioned in vertical guide groove (26) and along the groove slippage, location retaining chi (7) is the center with the bearing pin simultaneously, in work top, do rotating freely in 120 ', the sawing angle of processing work is adjusted.

The body part is made up of frame (8), annex storehouse (9), chip discharging tube (12).Frame (8) adopts aluminium alloy or engineering plastics die casting to form, and the use of chip discharging tube (12) is for the user that the dust suction filing collector is arranged arranges, and forms with plastic injection-moulded, adopts embedded assembling, installs and removes easy.

For convenience of the user, the utility model has also specially designed an annex storehouse (9) on frame (8), and this annex storehouse (9) is the part of frame (8), and the position can be used for depositing saw blade, consumable accessory, repair outfit etc. in the top of frame (8).

Have a saw circle that is used for sawing major diameter round table surface specially to prop up shelf attachment (13) in the auxiliary equipment, this annex is made up of nose girder (24), leg (15), the center of circle top (14).During use, nose girder (24) is fixed on the adjustable bed (5), on the basal plane that leg (15) supports on the ground or other band sawing machine is laid with two hold-down screws.The one garden heart top (14) is housed on the nose girder (24), and its position can be regulated on nose girder (24), determines its position according to the sawing radius.

In order to prevent that children or the careless switch of inoperative personnel should machineries, in the utility model, its power switch adopts a kind of safety belt lock-switch (11) that must use key, can prevent that contingency from taking place, and guarantees personal safety.

Consider the convenience that family uses, what power section was adopted is single-phase capacitor-operated motor (20), and motor is directly fixed on the frame (8), is rigidly connected with driving wheel (2), directly drives driving wheel (2).

The structural material of portable bandsaw machine provided by the utility model all adopts aluminium alloy or engineering plastics, can reduce complete machine weight again like this on material.In addition, change different saw blades, use also sawing nonferrous materials of the utility model, and can carry out the sawing of arbitrary curve material.In a word, because the utility model adopted and the diverse kind of drive of traditional band sawing machine, having compact conformation, characteristics such as volume is little, in light weight, the range of work is wide, machining accuracy height, is a kind of small-sized wood craft machines that can carry.

Claims (7)

1, a kind of portable bandsaw machine, this band sawing machine is made up of running part, Working Table part, body part, auxiliary equipment, power section, it is characterized in that, its running part includes a three-wheel transmission system that is made of adjustable tensioning upper block (1), driving wheel (2), stator ring (3), three drives in this system all are to process with aluminium alloy or engineering plastics, and the position of three drives is triangularly arranged in same vertical plane.

2, portable bandsaw machine as claimed in claim 1, it is characterized in that, running part wherein also contains the adjusting slide device (4) that the rectangle chute of an energy and body is slidingly matched, this device is made up of slide (19), hold-down screw (17), tensioning screw (16), deflection angle adjustment screw (18), can drive adjustable tensioning upper block (1) and make the adjustment of above-below direction and the angle adjustment that swings.

3, portable bandsaw machine as claimed in claim 1, it is characterized in that, Working Table part wherein also contains the bracket supports (6) of a band arc guide groove, adjustable bed (5) is fixed on the frame (8) by bracket supports (6) by two hold-down screws, loosen two hold-down screws, adjustable bed (5) can be along arc guide groove rotating freely in horizontal axis is done 45 °.

4, portable bandsaw machine as claimed in claim 1, it is characterized in that, Working Table part wherein also contains the positioning chi (7) of a band arc guide groove and the positioning slide scale (23) that has scale, location retaining chi (7) is connected on the positioning slide scale (23) with bearing pin, positioning slide scale (23) can place horizontal guide groove (25) and the vertical guide groove (26) on the adjustable bed (5), and can carry out slippage along groove, position with processing dimension, the sawing angle of processing work is adjusted processing work.

5, portable bandsaw machine as claimed in claim 1, it is characterized in that, also contain an annex storehouse (9) that can be used to deposit saw blade, consumable accessory, repair outfit in its body part, this annex storehouse (9) is the part of frame (8), and the position is in the top of frame (8).

6, portable bandsaw machine as claimed in claim 1, it is characterized in that, also contain a saw circle shelf attachment (13) that is used for sawing major diameter round table surface specially in its auxiliary equipment, this annex is made up of nose girder (24), leg (15), the center of circle top (14), passes through a hold-down screw when needing and should saw a circle shelf attachment (13) and be fixed on the adjustable bed (5).

7, portable bandsaw machine as claimed in claim 1 is characterized in that, its power switch is a kind of necessary key operated safety power switch with lock (11) that uses.

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