60results about "Strap saws" patented technology

A sawmill assembly includes a bed and a carriage. The bed has a pair of substantially parallel rails, and the carriage is movably supported along the rails. The bed includes an extension bed member pivotably attached to a main bed member with a combination bunk / hinge to allow an operator to fold the bed between an extended in use position and a stowed position for transporting the sawmill assembly to or from a work site with a tow vehicle.

A machine and a method for controlling such a machine that includes a feeder unit and a sawing station, the feeder unit being located upstream the sawing station. The sawing station includes a first sawing unit including a set of first saw band(s) and a pair of first support rollers, and a second sawing unit including a set of second saw band(s) and a pair of second support rollers, wherein the location of each support roller is adjustable in the transverse direction. The support rollers are configured to engage the timber body. The method is characterized by the steps of feeding the timber body by means of the feeder unit into the sawing station during the timber body dividing operation. The pair of first support rollers engage the timber body, positioning the pair of second support rollers at an initial mutual distance correlating to the real width of the timber body, and decreasing the mutual distance between the pair of second support rollers during the timber body dividing operation until reaching. At the end of the timber body dividing operation, a final mutual distance between the pair of second support rollers correlating to the real width of the timber body minus the total thickness of the set of first saw band(s).

To provide a saw capable of suppressing an increase in manufacturing costs. [Solution] A saw 10 is provided which has a first saw blade 11 and a second saw blade 12 for cutting an object, and a handle portion connected to the first saw blade 11 and the second saw blade 12, the handle portion having a first handle portion 13 and a second handle portion 14, the first handle portion 13 having a first component piece 23 and a second component piece arranged overlapping the first component piece 23, the second handle portion 14 having a third component piece and a fourth component piece 54 arranged overlapping the third component piece, and the first component piece 23, the second component piece, the third component piece, and the fourth component piece 54 each have the same shape, structure, and dimensions.

A chainsaw, comprising: a main-unit housing having a front portion, a rear portion, and an intermediate portion between the front portion and the rear portion; and a battery pack attached to the rear portion of the main-unit housing and supplying power to at least an electric motor, wherein when the battery pack is attached to the main-unit housing and the chainsaw is stably placed, the orthographic projection of the whole chainsaw is observed in an up-down direction, and in a front-rear direction, the ratio of the overlap length L1 between the battery pack and the main-unit housing to the length L2 of the main-unit housing is greater than or equal to 0.3.

The chainsaw includes a guide bar. The guide bar includes a recess. A communications chip or other on-board circuitry is positioned within the recess in the guide bar.

An apparatus for separating a sawn timber package cut from a log into main and side products during longitudinal transport thereof, having at least one separating device positioned such that, during a feed motion of the sawn timber package, it engages in a sawing gap between single- or multi-cut main product and side product and deflects the side product in a direction leading away from the main product. Two rotatably mounted conical rollers form the separating device, each having a circumferential separating edge formed by two surfaces of revolution enclosing an acute angle, and the two conical rollers are arranged on both sides of the sawn timber package and oriented such that they engage laterally into the sawing gap with respective separating edges and roll on the main product with their first surface of revolution, while deflecting the side product from the main product with their second surface of revolution.

The cutting saw convenient to disassemble and assemble comprises a vertical frame body and an operation table, a first supporting arm is installed on one side of the top of the vertical frame body, the bottom of the vertical frame body is perpendicularly connected with a second supporting arm, and supporting wheels are rotationally installed at the tail end of the first supporting arm and the two ends of the second supporting arm; the side, away from the first supporting arm, of the top of the vertical frame body is rotationally connected with a third supporting arm, a tensioning wheel is rotationally arranged at the tail end of the third supporting arm and connected with the supporting wheel through a band saw blade, and a telescopic device is rotationally connected to the lower portion of the third supporting arm. When the band saw blade is used and the band saw blade needs to be replaced, the telescopic device can be controlled to be shortened to drive the tensioning wheel to be lowered, so that the band saw blade supporting wheel can be taken down and then taken out from the strip-shaped opening, and the band saw blade is convenient to disassemble and assemble.

The present invention relates to a feeder unit and to a method for controlling such a feeder unit (4) that comprises a pair of support rollers configured to engage a timber body (2), wherein the feeder unit (4) comprises a hydraulic system (12) having a first hydraulic piston assembly (13) connected to a first support roller (14) and a second hydraulic piston assembly (15) connected to a second support roller (16), and wherein the mutual distance between the pair of support roll- ers is adjustable by means of the hydraulic system (12). The method is characterized by the steps of pre-positioning of the pair of support rollers, abutting the pair of support rollers against the timber body (2), by displacing at least the second support roller (16) towards the centre line (18), wherein the first hydraulic piston assembly (13) and the second hydraulic piston assembly (15) are in direct fluid communication with each other and follow any curvature of the timber body (2) and exert the predetermined clamping pressure against the timber body (2).

A timber processing and firewood splitting machine is provided, comprising a self-standing bearing frame for being placed on the ground, a conveying unit arranged in one terminal area of said bearing frame and configured to convey timber of a pre-determined diameter in the longitudinal direction of said bearing frame, a cutting unit suitable for cutting said timber to separate longitudinal sections of a pre-determined length, a guiding unit for guiding each timber section in said longitudinal direction and along a geometric axis (10) towards a working area (5), and a splitting unit and supporting assembly for supporting firewood pieces upon being split apart from the rest of said longitudinal section of the timber.

The utility model provides a telescopic saw blade protection device for a woodworking band sawing machine, which comprises an upper chamber body, a telescopic shield and a moving component, a fixed rib plate is arranged on one side of the upper chamber body, the upper end of the telescopic shield is connected with the rib plate, and the lower end of the telescopic shield is connected with the moving component. The telescopic protective cover comprises a top protective cover, a middle protective cover and a bottom protective cover, and the top protective cover, the middle protective cover and the bottom protective cover are sequentially connected in a sleeved mode and are in sliding connection. By adjusting the height of the telescopic protective cover and increasing or decreasing the number of the middle protective covers, the telescopic protective cover is more widely suitable for the requirements of different heights, the flexibility is higher, the practicability is higher, the operation is simple, the use effect of the protective cover is enhanced, and the protective cover is suitable for popularization and application. And the use experience of the user is improved.

The utility model discloses a saw blade protection device of a woodworking band-sawing machine, relates to the technical field of saw blade protection of band-sawing machines, aims to solve the technical problem that a saw blade is also in an exposed state when the current woodworking band-sawing machine does not work, and has certain potential safety hazards, and comprises a rotating mechanism and a protection mechanism arranged on the rotating mechanism, the rotating mechanism comprises a base plate, a supporting plate is mounted at the upper end of the base plate, a top plate is mounted at the upper end of the supporting plate, first rotating shafts are symmetrically and rotatably mounted between the base plate and the top plate, connecting rods are mounted on the first rotating shafts, the protection mechanism comprises a mounting plate, and a lifting groove is formed in the mounting plate. The protective device has a structure for protecting the saw blade, and the saw blade of the band-sawing machine can be wrapped by combining the left and right U-shaped protective plates, so that the saw blade can be prevented from being damaged due to collision, a worker can be prevented from touching the saw blade carelessly, and the safety of the band-sawing machine is improved.

To provide a technology which enables improvement of users' convenience in a cutting tool provided with a hand guard.SOLUTION: A cutting tool disclosed by the specification includes: a cutting unit; a prime mover configured to drive the cutting unit; a housing including a housing body for holding the cutting unit and housing the prime mover, and a grip which extends from the housing body and is configured to be grasped by a user's hand; and a hand guard attached to the housing, configured to protect fingers of the user's hand grasping the grip, and being more deformable than the housing.SELECTED DRAWING: Figure 1

Sawmill plant for cutting up round timber (14), comprising a plurality of processing stations (16, 18, 20, 22), a conveyor system (24), and a control unit (26) configured to control the plurality of processing stations (16, 18, 20, 22) and the conveyor system (24) to cut up a round timber (14) with a defined sequence (12) of processing steps, wherein the plurality of processing stations (16, 18, 20, 22) comprises a first double circular saw (16) and a first double band saw (18), wherein the first double circular saw (16) has a first circular saw blade (42) with a first axis of rotation (44) and a second circular saw blade (46) with a second axis of rotation (48) arranged parallel to the first axis of rotation (44), such that there is a gap between the first circular saw blade (42) and the second circular saw blade (46) a first defined gap (50) remains,wherein the first double band saw (18) has a first band saw blade (56) with a first saw line (60) and a second band saw blade (58) with a second saw line (62) which is arranged parallel to the first saw line (60), so that a second defined space (64) remains between the first saw line (60) and the second saw line (62), wherein the first and the second axes of rotation (44, 48) are arranged parallel to the first and the second saw lines (60, 62), and wherein the conveying system (24) is configured to guide the log (14) or a saw product (32) produced from the log (14) through the first space (50) relative to the first double circular saw (16) and further through the second space (64) relative to the first double band saw (18).

The utility model discloses a band-sawing machine for manufacturing intelligent furniture, and relates to the technical field of band-sawing machines. The device comprises a base, the top of the base is connected with a box through a workbench, the bottom of the box is connected with a protective cover, a backer, a rotating rod and a worm, and the outer surface of the rotating rod is connected with a gear and a worm gear. The second adjusting wheel is rotated to drive the worm to rotate, then the worm wheel drives the gear to rotate through the rotating rod, the gear is meshed with the rack, the rack drives the protective cover to move upwards or downwards, the height of the protective cover is adjusted, and therefore the pressing wheel abuts against plates with different thicknesses, and the plates with different thicknesses can be pressed. The moving position of the protective cover is locked through a worm gear and a worm, the situation that the protective cover automatically moves due to vibration generated during cutting is avoided, meanwhile, the exposed saw blade is shielded through the protective cover and a baffle, the saw blade is prevented from being broken during machining, generated fragments are prevented from splashing, and the cutting quality is improved. And the personal safety of surrounding workers is harmed.

The present invention discloses a single and double arc surface cutting saw set, which includes a first C-shaped saw body, a second C-shaped saw body, a power mechanism, a band saw, an inner synchronous belt, an outer synchronous belt, an inner transmission synchronous belt pulley, an outer transmission synchronous belt pulley, an idler synchronous belt pulley, an inclined saw receiving wheel, a belt tightening device and a rotating base. The first C-shaped saw body and the second C-shaped saw body are connected by bolts. The first C-shaped saw body and the second C-shaped saw body are both arranged on the rotating base. The power mechanism is arranged at the upper end and the lower end of the first C-shaped saw body. The upper end, the middle part and the lower end of the second C-shaped saw body are symmetrically provided with inclined saw receiving wheels. The band saw is located between the inclined saw receiving wheels symmetrically arranged at the upper end and the lower end of the second C-shaped saw body. The band saw is located on one side of the inclined saw receiving wheels symmetrically arranged in the middle of the second C-shaped saw body. The upper end and the lower end of the second C-shaped saw body are symmetrically provided with outer transmission synchronous belt pulleys. The middle part of the second C-shaped saw body is symmetrically provided with idler synchronous belt pulleys.

Electric motor saw blade emergency braking device (10) for stopping the running of the saw blade (50) of an electric motor saw (1) incorporating a cutting table (2) through which the saw blade (50) of the saw (1) runs during a cutting operation, the device (10) comprising: - a first rotatably mounted saw blade brake shoe (11), - a second rotatably mounted saw blade brake shoe (12) spaced from the first saw blade brake shoe (11) for receiving the saw blade (50) in a gap (13) formed therebetween, - a drive (20) having a piston (21) arranged in a piston cylinder (22) for driving the first and second saw blade brake shoes (11, 12) from a rest position until contact with the side surfaces (51) of the saw blade (50) between the saw blade brake shoes (11, 12), - a pressure chamber (30) for maintaining a fluid (31) at a predetermined pressure, the pressure chamber (30) being arranged on the piston cylinder (22), and - a valve member (40) arranged to regulate a flow of the pressurized fluid (31) along a flow path between the valve member (40) and the piston (21) from the pressure chamber (30), with a discharge opening (41) for conducting pressurized fluid (31) from the pressure chamber (30) into the drive (20), characterized in that an actuator (14) is arranged to jointly drive the first saw blade brake shoe (11) and the second saw blade brake shoe (12) from the rest position until contact with the side surfaces (51) of the saw blade (50).

A wood processing device 1 for processing a log H aligned along a longitudinal direction L of the wood processing device 1, said wood processing device comprising: a machine frame 2, a processing gantry 3 supported on the machine frame 2 so as to be movable at least in the longitudinal direction L, a holding device 4 arranged on the machine frame 2 for holding the log H on the machine frame 2, a trimming device 5 arranged on the processing gantry 3 for trimming the log H, said trimming device 5 having at least one milling head 5.1, 5.2, 5.3, 5.4, a cutting device 6 arranged on the processing gantry 3 for cutting the log H, said cutting device 6 having at least one saw 6.1, 6.2, in particular aligned horizontally, and a splitting device 7 arranged on the processing gantry 3 for splitting the log H, said splitting device 7 having at least one saw 7.1, 7.2, in particular aligned vertically. It is equipped with:

To provide a technique that can suppress the reduction of torque transmitted from a prime mover to a working part via an output shaft in a working machine.SOLUTION: A working machine comprises: a prime mover including an output shaft; a working part coupled to the output shaft; a slip mechanism; and a fan attached to the output shaft via the slip mechanism. The slip mechanism may be configured to: in a case where a load torque applied to the output shaft when driving the fan is less than a predetermined value, rotate the output shaft and the fan integrally with each other; and in a case where the load torque when driving the fan is greater than or equal to the predetermined value, rotate the output shaft and the fan relative to each other.SELECTED DRAWING: Figure 10

A method of processing timber comprises cutting a log into at least one elongate block of timber having a square or rectangular cross section and an elongate axis, cutting said at least one block into

The present invention relates to a feeder unit and to a method for controlling such a feeder unit (4) that comprises a pair of support rollers configured to engage a timber body (2), wherein the feeder unit (4) comprises a hydraulic system having a first hydraulic piston assembly (13) con- nected to a first support roller (14) and a second hydraulic piston assembly (15) connected to a second support roller (16), and wherein the mutual distance between the pair of support rollers is adjustable by means of the hydraulic system. The method comprises the steps of abutting the pair of support rollers against the timber body (2), and exercising unguided mode of operation of the pair of support rollers, wherein the first hydraulic piston assembly (13) and the second hy- draulic piston assembly (15) are in direct fluid communication with each other, wherein the method comprises the step of restricting the hydraulic liquid flow between the first hydraulic piston assembly (13) and the second hydraulic piston assembly (15), in order to provide a vis- cous dampening of any oscillating movements of the timber body (2).

To provide a technology that can discharge liquid into a second space from a first space and suppress intrusion of the liquid into the first space from the second space.SOLUTION: An electric work machine includes: an electric component; a first space in which the electric component is disposed; a partition wall partitioning the first space from a second space different from the first space and including a first communication opening for allowing the first space to communicate with the second space; and a first one-way valve disposed in the first communication opening.SELECTED DRAWING: Figure 9

The invention discloses a band-sawing machine. Saw blades on the two sides of the band-sawing machine can saw off wood boards. The invention belongs to mechanical equipment which must be used by wood product processing factories, and is characterized by solving the problems of low wood board sawing speed and consumption of manual processing and processing time in the prior art. In the prior art, only one upper saw blade is used when one saw blade is arranged on each of the two sides of a band saw machine, the wood board sawing speed is low, and the wood board processing efficiency is low. According to the band-sawing machine, the saw blades on the two sides of the band-sawing machine can saw off wood boards, the speed is high when the band-sawing machine is used for sawing the wood boards, the number of the sawed wood boards is large, the time for sawing the wood boards is greatly saved, and the labor intensity of workers is greatly reduced.

A sawing machine, a sawing machine kit, and a method of securing one or more components to a sawing machine includes securing one or more components between two or more metal plates, and securing the plates directly to a machine body or further to the machine body by a plurality of mounting brackets. The components may include one or more of a toe board, a log carrier, and a log turner. These components may be hydraulically actuated, and hydraulic or other actuation systems may be attached to the sides of the metal sheets or placed between the metal sheets. Compared with the prior art, the method has the advantages that the material consumption is reduced, the assembly is convenient, and the manufacturing and transportation cost is saved.

To provide a technology which enables improvement of users' convenience in a cutting tool provided with a hand guard.SOLUTION: A cutting tool disclosed by the specification includes: a cutting unit; a prime mover configured to drive the cutting unit; a housing including a housing body for holding the cutting unit and housing the prime mover, and a grip which extends from the housing body and is configured to be grasped by a user's hand; and a hand guard attached to the housing, configured to protect fingers of the user's hand grasping the grip, and being more deformable than the housing.SELECTED DRAWING: Figure 1

A wood-machining device for machining round wood oriented in a longitudinal direction of the wood-machining device includes: a machine frame; a machining gantry mounted on the machine frame so as to move at least in the longitudinal direction; a holding device disposed on the machine frame for holding the round wood on the machine frame; a trimming device disposed on the machining gantry for trimming the round wood, the trimming device having at least one milling head; a cutting device disposed on the machining gantry for cutting the round wood, the cutting device having at least one saw, which, more particularly, is oriented horizontally; and a splitting device disposed on the machining gantry for splitting the round wood, the splitting device having at least one saw, which, more particularly, is oriented vertically.

A sawmill carriage (20) includes a frame (24) having a handle (60), translation structures connected to the frame (24) towards lateral sides (LS) thereof, a sawmill head (28), and a pair of transportation wheels (88) rotatably connected to the frame (24) towards a longitudinal end (RLE) thereof. The translation structures are mountable on rails (92) of a log support structure (96) that can support a log (100). The rails (92) extend in a longitudinal direction (LD) and enable travel of the sawmill carriage (20) in the longitudinal direction (LD) when the sawmill carriage (20) is mounted thereon. The sawmill head (28) has a saw blade (64), a portion of which is positionable to cut the log (100) positioned on the log support structure (96) when the sawmill carriage (20) is mounted on the rails (92), and the sawmill carriage (20) travels in the longitudinal direction (LD). The handle (60) is positioned to enable tilting and / or transportation of the sawmill carriage (20). A kit and method of using the sawmill carriage (20) are also provided.

A wood processing system, components thereof, and associated methods. Elongate wood members are cut from a piece of wood such as a log. The elongate wood members may be cut in a plurality of adjacent rows. The elongate wood members in a row may each have a generally triangular cross-sectional shape. The generally triangular cross-sectional shape of the elongate wood members of a row may alternate in orientation along the row.