281results about "Auxillary saw devices" patented technology

The invention belongs to the technical field of wood sawing, and particularly relates to wood sawing and segmenting equipment based on papermaking raw materials and an operation method thereof.The wood sawing and segmenting equipment comprises a base, a sliding plate is slidably connected to the top of the base, two supports are fixedly connected to the top of the sliding plate, and a supporting plate is rotatably connected between the two supports; according to the wood sawing and segmenting equipment based on the papermaking raw materials and the operation method of the wood sawing and segmenting equipment, a hydraulic cylinder controls a guide wheel to be pushed upwards, one side of a supporting plate tilts upwards, then a chain is in an inclined state, and after the chain tilts, logs slide downwards under the action of gravity and then are attached to a push plate; when the logs are conveyed upwards in an inclined mode, a third motor controls a cam to rotate, the cam is matched with a square groove, a chain swings left and right, the supported logs can be corrected through swinging of the chain, and the situation that the logs cannot be corrected due to the fact that the friction force between the logs and the chain is too large after the logs are inclined is avoided.

A dustless compound sliding miter saw with a built-in dust collection system is disclosed. The dustless compound sliding miter saw uses an extraction turbine to create a vacuum region at the end of the blade exist from the cut wood piecework, the blade housing has an external extraction channel and an external suction tube to maximize the dust collection. A retractable dust guard is utilized to confine the sawdust in the vacuum region to further maximize the dust collection. The compound sliding miter saw also utilizes anti-dust blade guard and air flow guide fins to optimize the airflow and the dust extraction. The compound sliding miter saw has a rail system that slides the blade from front to back and extends the maximum cutting length. The compound sliding miter saw has a built-in beveling mechanism to tile the blade and cut down through the wood at an angle.

A cutter machine may include a cutter unit, a prime mover configured to drive the cutter unit, a housing including a housing body and a grip, wherein the housing body holds the cutter unit and houses the prime mover, and the grip 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.

A circular saw includes a support surface for a workpiece and which has a saw blade slot, a main drive motor arranged below the support surface for driving a saw blade in rotational movement, and a saw blade holder connected to the main drive motor for the purpose of transmitting the rotational movement A height-adjustment apparatus, with a height actuator and a transmission element coupled to the saw blade holder are arranged to set the spacing between a saw blade holder and the support surface An electronic interface provides the input of a saw blade projection. A protection apparatus is connected by signals to a monitoring apparatus and the height actuator and is adapted to activate the height actuator for quick lowering of the saw blade holder when a dangerous situation is recorded by the monitoring apparatus.

The invention relates to the technical field of chain saws, and discloses a chain saw with a safety protection structure, a second rotating shaft movably penetrates through the interior of a fixed cylinder, a protection frame is fixedly connected to one end of the second rotating shaft and is located on the outer side of a fixed cover body and the outer side of a shell, and the other end of the second rotating shaft is located in the fixed cylinder and movably sleeved with a second torsional spring; the other end of the second rotating shaft is fixedly connected with a push block on the outer side of the second torsional spring, and a touch switch is mounted on the outer side of the fixed cylinder and in the shell. When the chain saw moves downwards to be close to the leg of a person, a blocking frame on a protection frame abuts against the leg of the person, the protection frame is stressed to abut against the bottom of a limiting block and drives a second rotating shaft to rotate, the chain saw is supported through the protection frame, and a saw chain on a guide plate is prevented from being close to the leg of the person; meanwhile, the second rotating shaft rotates to drive the push block to abut against and press the outer side of the touch switch, the circuit is disconnected, the driving motor stops rotating, personnel are prevented from being injured, and guarantee is provided for personnel safety.

The application provides a handheld power tool, and relates to the technical field of electric tools.The handheld power tool comprises a housing, a handle arranged on the housing, a motor arranged in the housing, a transmission mechanism comprising a transmission component, a coaxially arranged output disc and a chain wheel, the transmission component being connected with the motor, and the output disc being matched with the transmission component, and a saw chain sleeved on the chain wheel; wherein the center line L1 of the saw chain intersects with the center line L2 of the motor at a first intersection point S1, the center line L1 of the saw chain intersects with the center line L3 of the handle at a second intersection point S2, and the first intersection point S1 and the second intersection point S2 are both arranged on the outer side of the output disc. By arranging the first intersection point S1 and the second intersection point S2 on the outer side of the output disc, the included angle between the saw chain and the motor and the handle is reasonably arranged.

A chainsaw is provided, enabling to remove sawdust conveyed inside a main body efficiently, which has a main body including: a guide bar; a saw chain wound around the guide bar and the drive sprocket; a drive sprocket disposed behind the guide bar, having a rotation shaft in a right / left direction of the main body and rotated to move the saw chain along the guide bar; and a guide wall including an arcuate first wall along the drive sprocket with a predetermined gap from the saw chain and a second wall extended rearward via a connecting portion to the first wall, and when seen from the right / left direction, a angle between: a first direction along a vertical direction of the main body; and a second direction passing through the center of the rotation shaft and an apex of the connecting portion is between 0° and 30°.

The utility model relates to the technical field of woodworking tools, in particular to an inner support special for a woodworking table dog hole. The device comprises a supporting piece, a pressing piece and an expansion piece. The pressing piece is arranged on the supporting piece in a threaded fit mode. The expansion piece is arranged on the supporting piece and located between the supporting piece and the pressing piece. According to the inner support special for the woodworking table dog hole, the expansion piece can generate radial expansion through screwing-in of the threads between the pressing piece and the supporting piece so as to form radial tensioning force, and the expansion piece can elastically recover through screwing-out of the threads so as to facilitate disassembly of the inner support; therefore, the operation is convenient, the mounting and dismounting efficiency is high, and the dog hole of the workbench cannot be damaged.

A sawing device has a frame, a circular disc-shaped saw blade mounted rotatably with respect to the frame, and an emergency brake unit. The emergency brake unit has a blocking element, an actuator unit and a control unit. The blocking element has a bearing portion and a head portion designed to engage into the saw blade selectively for braking. The actuator unit is coupled to the blocking element in a normal blocking element position, such that the blocking element engages with the saw blade selectively with the actuator unit. The blocking element can be selectively disassembled from the frame separately from the actuator unit and / or from the control unit. A triggered emergency brake unit of a sawing device ready for operation may be provided. In this regard, a blocking element is disassembled separately from the actuator unit and / or separately from the control unit and an unused blocking element is mounted.

The utility model relates to a full hydraulic control multifunctional firewood processor which comprises a main machine frame, a feeding conveying mechanism is arranged at the front end of the main machine frame, a locking mechanism is arranged above the feeding conveying mechanism, the locking mechanism comprises a locking piece, a locking hydraulic cylinder and a locking rotating shaft, the locking piece is fixedly arranged on the locking rotating shaft, and the locking hydraulic cylinder is arranged on the locking rotating shaft. The locking hydraulic cylinder drives the locking rotating shaft to rotate back and forth; a cutting mechanism is arranged behind the feeding conveying mechanism and comprises a cutting saw, a cutting hydraulic cylinder and a cutting rotating shaft, the cutting saw is fixedly arranged on the cutting rotating shaft, and the cutting hydraulic cylinder drives the cutting rotating shaft to rotate in a reciprocating mode; a sliding way is arranged below the cutting mechanism, a wood splitting blade is arranged in the sliding way, a wood splitting hydraulic cylinder is arranged at the front end of the sliding way and can push wood to abut against the wood splitting blade, and a discharging and conveying mechanism is arranged behind the sliding way. The automatic wood sawing and splitting machine integrates automatic feeding, hydraulic locking and fixing, hydraulic wood sawing, hydraulic wood splitting and automatic discharging, and is high in automation degree, strong in power output and high in working efficiency.

The invention relates to a safety device for a machine tool, comprisinga detection device which is designed to detect a potentially hazardous state for a part of the body of a user of the machine tool caused by a component of the machine tool which could cause injurya safety measure device which is designed to carry out a safety measure by means of which a hazardous state of the user of the machine tool is reduced or avoided by a component of the machine tool,a control device which is coupled to the detection device and the safety measure device in terms of signal technology and is designed to carry out an evaluation of a potentially hazardous state detected by the detection device on the basis of predetermined criteria and, depending on the evaluation, to trigger the safety measure device to carry out a safety measure,characterized in thatthe capture device comprises a head mount for attachment to the user's head and an image capture device attached to the head mount and aligned to perform image capture in the user's field of view, andthe control device is designed to perform the evaluation on the basis of images captured by the image capture device.

A work apparatus (1 figure 1) has a tool (9 figure 1) which can be driven in a rotating manner around a rotational axis 11 and a protective hood 10 which extends over at least a part of the periphery

The invention relates to a method for automatically determining cleaning, maintenance and / or repair information (Info) of a motor-driven machining tool (2), wherein the machining tool (2) has residues (RS) which are optically detectable from the outside and which are caused during operation of the machining tool (2), wherein the method comprises the following steps: a) optically detecting the residues (RS); b) classifying the detected residues (RS) depending on the kind (AT) of the residues (RS); c) determining cleaning, maintenance and / or repair information (Info) on the basis of the classification; and d) outputting the determined cleaning, maintenance and / or repair information (Info).

The present invention relates to a portable handheld saw machine including a saw unit (11) having a sawing tool holder (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool holder (14), and a guide device (17), wherein the guide device includes a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the handheld saw machine (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and the guide surface (19) is moved during sawing operation of the handheld machine tool. The present invention relates to a portable hand-held saw machine capable of making saw cuts (SAE) in a workpiece (W) along a working direction (AR) using a saw tool (15) that protrudes in front of a saw drive motor (12) (19), and the hand-held saw machine has a safety device (100) for safely fixing a sawing tool holder (14) for tool replacement of the saw tool (15), the safety device (100) safely fixing the sawing tool holder (14) so ​​that it is not driven by a sawing drive motor (12) in a safety position (SG) and releasing it in a saw operating position (FS). The handheld saw (10) comprises a creasing unit (31) having a creasing tool holder (34) for a creasing tool (35), in particular a creasing tool saw blade, arranged in a guide device (17) in front of the saw unit (11) in a working direction (AR), and a creasing tool drive (32A), in particular a creasing tool drive motor (32) for driving the creasing tool holder (34), so that during creasing operation of the handheld saw tool, a creasing tool (35) protruding in front of the guide surface (19) can be used to make a creasing mark (RI) in a workpiece (W) that is positioned in front of a saw cut (SAE) to be made in the working direction (AR), and a safety device (100) safely fixes the creasing tool holder (34) in a safety position (SG) so that it cannot be driven by the creasing tool drive (32A) and releases it in a saw operating position (FS).

Electric work equipment includes a body case, a work tool formed to protrude forward from a front portion of the body case, a motor housed in the body case and configured to drive the work tool, a battery removably disposed in the body case and configured to supply power to the motor, a handle protruding from the body case and configured to be gripped, a trigger lever disposed on a lower surface of the handle and configured such that power is supplied from the battery to the motor when pulled, and a switch panel disposed on an upper surface of the handle and including a power switch, the power switch being configured to make the motor operable when turned on and to stop operation of the motor when turned off, and is inclined downward from a right to left side thereof or from the left to right side thereof.

According to examples, a power tool may include a chassis and a guide bar mounted to the chassis, the guide bar having a central axis. The power tool may also include a handle attached to the chassis above the central axis of the guide bar and a motor housed within the chassis to drive a chain around the guide bar, in which the motor is positioned beneath the central axis of the guide bar and a central axis of the motor is at a certain angle with respect to the central axis. The handle, the motor, and the battery pack mount may be positioned with respect to the chassis to cause the power tool to substantially be balanced in both lateral and longitudinal directions about a location near the trigger mechanism when the battery pack is mounted to the battery pack mount.

The present invention provides a chainsaw, specifically relating to the field of cutting tools. The chainsaw comprises a housing, a guide plate, a saw chain, a tool guard, and a bolt. A guide block and a first connecting hole are provided on one side of the housing. The guide plate is provided with a retaining groove that cooperates with the guide block. The saw chain is mounted on the guide plate and driven by a drive device disposed within the housing. The tool guard is provided with a second connecting hole corresponding to the first connecting hole. The bolt is rotatably retained on the tool guard and axially movable along the second connecting hole. When the guide plate is installed, the bolt passes through the guide plate and is threadedly connected to the first connecting hole to secure the guide plate between the tool guard and the housing. The chainsaw of the present invention is simple to assemble, and because the bolt remains attached to the tool guard, it can be prevented from being lost during assembly.

A circular saw may include a base plate and a blade guard assembly coupled to the base plate, the blade guard assembly including an upper blade guard and a lower blade guard movable between an extended position and a retracted position. A circular saw may include a housing assembly coupled to a saw blade guard assembly, an output shaft, and a saw blade clamp coupled to the output shaft, the saw blade clamp configured to hold a saw blade. The circular saw may include a brushless direct current (DC) motor positioned within the housing assembly and operable to rotate the output shaft. The circular saw may include an electronic controller configured to perform a field weakening operation on the brushless DC motor.

The invention discloses a fully automatic wood sawing equipment, including a wood feeding device and an automatic wood sawing device. The transmission frame of the wood feeding device has a transmission belt, a clamping cylinder is fixed on a conveyor mounting plate, a piston rod of the clamping cylinder is connected to the clamping plate, an infrared sensor is arranged in the transmission frame, and a controller is arranged in a control cabinet in the wood feeding device; the automatic wood sawing device includes a fixed support platform, a liftable wood saw working platform is arranged on the fixed support platform, a wood saw is placed on the wood saw working platform, a temperature sensor and a speed sensor are installed on the wood saw, a wood saw grip clamping tool, an automatic start wood saw tool, and a wood saw throttle loading tool are arranged on the wood saw working platform, and an industrial computer, a fuel storage tank, a chain plate oil storage tank, and a fuel consumption meter are also arranged on the fixed support platform. The invention can effectively reduce labor intensity and realize automatic wood sawing operation. At the same time, the parameters of the wood saw engine can be monitored in real time during the operation.

The present invention provides a hand-held electric tool comprising a housing and an operating component. The housing has a main body section and a grip section extending from the rear side of the main body section, and the front end of the main body section is provided with a mounting interface. The operating component is mounted at the mounting interface of the housing and protrudes from the housing. A chip removal hole is formed in the bottom wall of the main body section of the housing, and a protective portion that extends downwards at least partially is provided at the bottom end at the position where the main body section joins the grip section. The bottom of a hand-held electric tool of the present invention is substantially closed, except for being provided with a chip removal hole, which allows removal of chips while preventing a user's hand from being inadvertently extended into the housing and contacting a component operating at a high speed. Moreover, chips removed through the chip removal hole are blocked by the protective portion, without reaching the grip section, which offers considerable advantages in terms of safety and hygiene.

Power tools with detection systems configured to detect a dangerous condition between a person and a cutting tool are disclosed. Fast-acting and low-inertia actuators useable in various applications where a high force must be applied very quickly are disclosed. In power tools, for example in a woodworking machine, a fast-acting and low-inertial actuator as disclosed herein can be used to retract a blade upon detection of a dangerous condition by a detection system. Power tools with a magnetic force holding a blade from retracting until a detection system detects a dangerous condition are disclosed.

To improve the heat dissipation efficiency of semiconductor switches in electric power tools. [Solution] One aspect of the present disclosure provides an electric work machine comprising a motor, a circuit board, a semiconductor switch, a metal plate, a heat dissipation member, and a male screw. The semiconductor switch is a semiconductor switch on a circuit board, having a first metal surface and a first mounting surface, and is electrically connected to a power supply and a motor. The first mounting surface is opposite to the first metal surface and faces the first circuit surface of the circuit board. The metal plate has a first plate surface bonded to the first metal surface and a second plate surface opposite to the first plate surface. The heat dissipation member is in direct or indirect contact with the second plate surface. The male screw fastens the heat dissipation member and the metal plate.

A unit for machining a workpiece, in particular for machining grooves and separating cuts therein, said workpiece preferably consisting at least partially of wood, wood-based materials, metal materials or plastic, has a main body (1), a machining tool (2) that is mounted, in particular rotatably mounted, on the main body (1), wherein the machining tool (2) has a first portion (3) that is configured such that, during the machining of the workpiece (10), it is able to penetrate into the workpiece (10), and a line device (4) that is arranged in the region preferably next to the machining tool (2) and is configured such that a medium is able to flow along, preferably through, the line device (4), wherein the line device (4) has at least one opening (5) in a lower end portion thereof. The line device (4) is configured such that the medium is able to flow out of the opening (5) substantially in the direction of the first portion (3) of the machining tool (2), and / or the line device (4) has a suction-extraction device.

Protective garments are provided. A protective garment includes a protective garment fabric. The fabric is formed from a plurality of layers. At least one layer of the plurality of layers is formed from a plurality of fibers adapted to entangle with a moving blade of a tool upon contact between the moving blade and the fabric. At least one layer of the fabric includes metal fibers. The garment includes a garment sensing device including a sensor configured to detect when one or more metal fibers are cut, and a signal generator configured to send a signal to the tool to disable movement of the moving blade.

The utility model discloses a brushless electric saw capable of working in a narrow space. The brushless electric saw comprises a handle, a motor and a guide plate, a side frame is arranged at one end of the handle, and a protective shell is arranged on the outer side of the side frame. The motor is arranged on one side of the side frame; the output end of the motor is connected with a rotating shaft; the electric saw is compact in overall structure and can flexibly work in a narrow and narrow space where conventional electric saws are difficult to apply, a user can easily reach and conduct cutting tasks by means of the small and flexible figure of the electric saw no matter in operation scenes such as narrow pipeline gaps and corners, the use range of the electric saw is greatly expanded, and the electric saw is suitable for popularization and application. The working efficiency is improved, and construction obstacles caused by space limitation are reduced; according to the brushless electric saw, automatic and precise lubrication is achieved through the built-in lubricating mechanism, the brushless electric saw can replenish lubricating oil for a cutting chain and a gear piece in time according to requirements in the working process, the working continuity is improved, and the working efficiency is improved.

The utility model discloses an electric chain saw which comprises a machine shell, a gear box, an oil pump, an oil tank, an oil inlet pipe, a guide plate and an oil outlet pipe. The gear box is installed in the machine shell and comprises a gear box shell, an installation table is arranged on the gear box shell and comprises a planar first installation part, and an included angle is formed between the plane where the first installation part is located and the plane where the top wall of the gear box shell is located; the oil pump is fixedly mounted on the mounting table, penetrates through the first mounting part, is at least partially inserted into the gearbox and is in linkage mounting with the gearbox; the oil tank is installed in the machine shell. The oil inlet pipe communicates with the oil tank; the guide plate is installed on the machine shell. The oil outlet pipe communicates with the oil pump and the guide plate. According to the invention, the probability of oil leakage can be reduced.

The utility model discloses an air floating platform which comprises an air floating table and a machine table, the air floating table is communicated and connected with the machine table, the air floating table comprises a table plate, a floating table frame, a supporting column, a supporting plate, an air blower, a sound insulation cover and an air supply pipe, the table plate is installed at the upper end of the floating table frame in a covering mode, the table plate and the floating table frame form a cavity, and a plurality of vent holes penetrating through the table plate are formed in the table plate. The ventilation hole is communicated with the cavity, the floating platform frame is connected with the cavity, the supporting column is installed on one side of the lower end of the floating platform frame, the supporting plate is fixedly connected with the supporting column, the supporting plate is installed on the supporting column, the sound insulation cover is fixedly installed on the supporting plate, the sound insulation cover is provided with a containing cavity, the air blower is installed in the containing cavity, and the air blower is communicated with the air supply pipe. And the air supply pipe is communicated with the chamber. The device is simple in structure, low in cost, easy to maintain and convenient to operate and move, and does not generate large noise.