CN111993495A - Safe sawing machine with dual protection effect - Google Patents
Safe sawing machine with dual protection effect Download PDFInfo
- Publication number
- CN111993495A CN111993495A CN202010891289.6A CN202010891289A CN111993495A CN 111993495 A CN111993495 A CN 111993495A CN 202010891289 A CN202010891289 A CN 202010891289A CN 111993495 A CN111993495 A CN 111993495A
- Authority
- CN
- China
- Prior art keywords
- saw disc
- seat
- workbench
- strip
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/16—Saw benches
- B27B5/22—Saw benches with non-feedable circular saw blade
- B27B5/222—Saw benches with non-feedable circular saw blade the saw blade being arranged underneath the work-table; Guiding arrangements for the work-table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
The invention relates to the technical field of sawing machines, in particular to a safe sawing machine with double protection effects, which comprises a workbench, a plate material limiting mechanism, a sawing disc, a motor, an active protection mechanism and a passive protection mechanism, wherein an output shaft of the motor is fixedly connected with the center of the sawing disc through the passive protection mechanism, the active protection mechanism is fixedly arranged at the bottom of the workbench and positioned beside the sawing disc, the plate material limiting mechanism is arranged at the top of the workbench, a strip-shaped through groove for upwards extending the sawing disc is formed in the workbench, the active protection mechanism comprises a monitoring mechanism for detecting the conductivity of the sawing disc and a collapsing brake mechanism for reversely braking the sawing disc, the conductivity of a saw blade is constantly detected through the detection mechanism, and when fingers touch the sawing disc to cause the change of the conductivity, the collapsing brake mechanism and a flexible connecting piece jointly brake the sawing disc, therefore, accident injury is reduced from finger breakage to skin injury, and the equipment effectively protects the life safety of operators.
Description
Technical Field
The invention relates to the technical field of sawing machines, in particular to a safe sawing machine with double protection effects.
Background
In 1906, in berlin, germany: to complete their furniture design, walham. Mr. on europe invented the first table saw in the world, which made sawing wood faster and more accurate. Since the push bench saw was rapidly and universally developed throughout the world, the first push bench saw in the world was kept on display by the european dongdu company. The earliest push bench saw in China was a group of German European Denton multi-push bench saws (ALTERDORF) imported by trade companies in the last 70 th century from the first push bench saw in the world to the full numerical control push bench saw, the push bench saw has gone over more than 100 years, and the main structure of the push bench saw comprises a sliding table, a working table top, a cross bar, a slide carriage seat, a main saw, a slot saw and the like.
During machining operation, the workpiece is placed on the movable workbench, and the movable workbench is pushed manually, so that the workpiece is fed, and the operation is very convenient.
Since the work piece is pushed toward the saw disc by hand, serious injury and serious finger cutting are caused if the work piece is improperly used or careless, and therefore, a safe sawing machine capable of avoiding the risk of finger breakage is necessary.
Disclosure of Invention
In order to solve the technical problem, the safe sawing machine with the double protection effects is provided, the safe problem in the use process of the sawing machine is solved by the technical scheme, and the condition of finger breakage is avoided.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a safe sawing machine with double protection effects comprises a workbench, a plate material limiting mechanism, a sawing disc, a motor, an active protection mechanism and a passive protection mechanism, wherein the sawing disc and the motor are arranged at the bottom of the workbench;
the plate limiting mechanism comprises a translation mechanism and a strip-shaped baffle arranged on the translation mechanism, the strip-shaped baffle is used for carrying out collision limiting on one end of a plate on the workbench, and the length direction of the strip-shaped baffle is consistent with the direction of the strip-shaped through groove;
the active protection mechanism comprises a monitoring mechanism for detecting the conductivity of the saw disc and a collapsing brake mechanism for reversely braking the saw disc;
the passive protection mechanism is used for being matched with the collapse brake mechanism to separate the saw disc from the motor.
Preferably, the passive protection mechanism comprises a flexible connecting piece, a coupler and a fastening bolt, a vertical supporting plate is fixedly arranged at the bottom of the workbench, the motor is horizontally and fixedly arranged on one side of the supporting plate, the saw disc is positioned on the other side of the supporting plate, two ends of the coupler are respectively connected with the flexible connecting piece and an output shaft of the motor, an axial positioning pin is arranged in the coupler and is embedded on the inner walls of the output shaft of the motor and the coupler when being positioned, and the fastening bolt fixedly connects the saw disc at one end, far away from the coupler, of the flexible connecting piece.
Preferably, the toughness connecting piece is in a cylindrical structure with a leak hole, the toughness connecting piece is composed of two circular end covers and a plurality of toughness strips, all the toughness strips are positioned between the two circular end covers, the two circular end covers are parallel to each other, all the toughness strips are perpendicular to the circular end covers, all the toughness strips are uniformly arranged along the circumferential direction, both ends of each toughness strip are fixedly connected with the two circular end covers respectively, the outer side of one of the circular end covers is fixedly provided with a first connecting shaft, the first connecting shaft is connected with the coupler, the outer wall of the first connecting shaft is provided with a pin groove for inserting the axial positioning pin, the outer side of the other circular end cover is fixedly provided with a second connecting shaft, the outer wall of the second connecting shaft is provided with a positioning block, the center of the saw disc is provided with an insertion hole matched with the cross-sectional shape of the second connecting shaft, and the end part of the second connecting shaft is provided with a threaded hole for connecting a fastening bolt.
Preferably, detection mechanism sets up in the bottom of workstation through a mounting bracket is fixed, detection mechanism includes L type support, the cylinder shell, first spring and detection brush, L type support is fixed to be set up in the first half of mounting bracket, a third connecting axle of outside fixedly connected with of cylinder shell, pass through bolted connection between third connecting axle and the L type support, the axis direction perpendicular to saw dish of cylinder shell, the cylinder shell is open structure towards the one end of saw dish, it sets up in the cylinder shell to detect the brush activity, first spring is located the cylinder shell, and the cylinder shell and the detection brush are contradicted respectively at the both ends of first spring, leave the clearance between cylinder shell and the saw dish.
Preferably, the braking mechanism that contracts bursts includes spacing seat, the drain pan, the aluminium piece that contracts bursts, control panel and elasticity jack-up mechanism, spacing fixed the setting in the middle part of mounting bracket of seat, the drain pan is the fixed lower half that sets up in the mounting bracket of tilt state, the aluminium piece that contracts bursts sets up in the top of drain pan, the one end that the saw dish was kept away from at the top of the aluminium piece that contracts bursts is provided with a articulated seat, the aluminium piece that contracts bursts one end of keeping away from the saw dish is articulated with articulated seat, control panel and elasticity jack-up mechanism all set up in the drain pan inboardly, the upper end of elasticity jack-up mechanism is stretched out the drain pan and is linked to each other with the free end of the aluminium piece that contracts bursts, the aluminium piece that contracts bursts is seted.
Preferably, elasticity jack-up mechanism includes iron plate, electro-magnet and second spring, and the electro-magnet is fixed to be set up in the inside one end that is close to the saw dish of drain pan, and the iron plate is fixed to be set up in the one end bottom that the aluminium piece that contracts of bursting is close to the saw dish, and the outside of iron plate and electro-magnet is located to the second spring cover simultaneously, and the aluminium piece that contracts of bursting is pressed close to one side of saw dish and is offered the concave arc surface structure that is used for avoiding the saw dish outer.
Preferably, translation mechanism has two sets ofly and sets up respectively in the top both ends of workstation, every translation mechanism of group all includes step motor, threaded rod and slide, the threaded rod is the level setting, the threaded rod passes through two axle beds fixed the setting on the workstation, step motor's output shaft and the one end fixed connection of threaded rod, slide and threaded rod screw-thread fit, the bottom of slide is equipped with the pulley that is used for with workstation top both ends aluminium alloy sliding connection, bar baffle horizontal stand is located on two translation mechanisms, the both ends of bar baffle respectively with two slide fixed connection.
Preferably, still be provided with supplementary pushing equipment on the bar baffle, supplementary pushing equipment includes the side strip, remove the seat, a handle, connecting seat and push pedal, the side strip is the horizontal fixation and sets up in the top of bar baffle, remove the outside sliding connection of seat and side strip, the outside of side strip is provided with and is used for supplying the draw runner that removes the seat and connect, the connecting seat is fixed to be set up in the bottom of removing the seat, the push pedal is vertical state setting and its first half and connecting seat fixed connection, be provided with two on the connecting seat and be used for supplying the push pedal to adjust the bolt waist groove of vertical height, the handle is the horizontal fixation and sets up in the outside of.
Compared with the prior art, the invention has the beneficial effects that: the detection mechanism detects the conductivity of the saw blade constantly, and when the conductivity is changed due to the fact that a finger touches the saw disc, the crumple brake mechanism and the flexible connecting piece jointly brake and separate the saw disc, so that accident injury is reduced from finger breakage to skin injury, and the equipment effectively protects the life safety of operators.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a partial perspective view of the present invention.
Fig. 4 is an exploded perspective view of the passive protection mechanism of the present invention.
Fig. 5 is a schematic perspective view of a flexible connector according to the present invention.
Fig. 6 is a schematic perspective view of a flexible connector according to the present invention.
Fig. 7 is a front view of fig. 3.
Fig. 8 is a plan sectional view taken along line a-a of fig. 7.
Fig. 9 is a plan sectional view of a partial structure of the active protection mechanism of the present invention.
Fig. 10 is a front view of the translation mechanism and bar baffle of the present invention.
Fig. 11 is a schematic plan view of the translation mechanism and the auxiliary pushing mechanism of the present invention.
Description of the drawings: 1-a workbench; 2-saw disc; 3, a motor; 4-an active protection mechanism; 5-strip-shaped through grooves; 6-strip-shaped baffle plates; 7-a ductile connector; 8-a coupler; 9-fastening bolts; 10-axial locating pins; 11-circular end caps; 12-a ductile strip; 13-a first connecting shaft; 14-pin slot; 15-a second connecting shaft; 16-a positioning block; 17-a threaded hole; an 18-L shaped stent; 19-a cylindrical shell; 20-a first spring; 21-detecting the electric brush; 22-a third connecting shaft; 23-a limiting seat; 24-a bottom shell; 25-collapsing an aluminum block; 26-a control panel; 27-a hinged seat; 28-collapsing of the pores; 29-iron nuggets; 30-an electromagnet; 31-a second spring; 32-concave arc surface structure; 33-a stepper motor; 34-a threaded rod; 35-a slide seat; 36-shaft seat; 37-a pulley; 38-side bar; 39-a moving seat; 40-a handle; 41-a connecting seat; 42-a push plate; 43-a slide bar; 44-bolt kidney slot.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
Referring to fig. 1 to 11, the safety sawing machine with dual protection effects includes a workbench 1, a plate material limiting mechanism, a saw disc 2, a motor 3, an active protection mechanism 4 and a passive protection mechanism, wherein the saw disc 2 and the motor 3 are arranged at the bottom of the workbench 1, an output shaft of the motor 3 is fixedly connected with the center of the saw disc 2 through the passive protection mechanism, the active protection mechanism 4 is fixedly arranged at the bottom of the workbench 1 and located at the side of the saw disc 2, the plate material limiting mechanism is arranged at the top of the workbench 1, and a strip-shaped through groove 5 for extending upwards from the saw disc 2 is formed in the workbench 1; when in use, the plate is placed on the workbench 1 and is pushed to the saw disc 2 rotating at high speed for cutting.
The plate limiting mechanism comprises a translation mechanism and a strip-shaped baffle 6 arranged on the translation mechanism, the strip-shaped baffle 6 is used for abutting and limiting one end of a plate on the workbench 1, and the length direction of the strip-shaped baffle 6 is consistent with the direction of the strip-shaped through groove 5; the distance between the strip-shaped baffle 6 and the saw disc 2 is adjusted through the translation mechanism, when the plate is cut, one end of the plate is tightly attached to the strip-shaped baffle 6, and then the plate is pushed to the saw disc 2, so that the flatness of the cut of the plate is guaranteed.
The active protection mechanism 4 comprises a monitoring mechanism for detecting the conductivity of the saw disc 2 and a collapse brake mechanism for reversely braking the saw disc 2; the conductivity of the saw disc 2 is detected through the monitoring mechanism, once non-wood materials contact the saw disc 2, the conductivity of the saw disc 2 is changed and fed back to the collapsing car-related mechanism, and then emergency braking is carried out on the saw disc 2 through the collapsing brake mechanism.
The passive protection mechanism is used for matching with the collapse brake mechanism to separate the saw disc 2 from the motor 3. When the collapse brake mechanism acts, the passive protection mechanism is forced to separate the saw disc 2 from the output shaft of the motor 3 after being forced by strong force, so that the saw disc 2 falls downwards to protect fingers.
Passive protection mechanism includes toughness connecting piece 7, shaft coupling 8 and fastening bolt 9, the fixed vertical backup pad that is provided with in bottom of workstation 1, motor 3 is the fixed one side that sets up in the backup pad of horizontality, saw dish 2 is located the opposite side of backup pad, the both ends of shaft coupling 8 link to each other with toughness connecting piece 7 and motor 3's output shaft respectively, be provided with an axial locating pin 10 in the shaft coupling 8, inlay when axial locating pin 10 and locate motor 3's output shaft and shaft coupling 8's inner wall, fastening bolt 9 will saw dish 2 fixed connection in toughness connecting piece 7 one end of keeping away from shaft coupling 8. The tough connecting piece 7 is connected with the output shaft of the motor 3 through the coupler 8, so that the motor 3 can drive the saw disc 2 to rotate at a high speed through the coupler 8 and the tough connecting piece 7. When the collapse brake mechanism emergently brakes the saw disc 2, the flexible connecting piece 7 receives strong reverse impact force to break the saw disc, so that the saw disc 2 is separated from the main shaft of the motor 3. The axial positioning pin 10 is used for axially limiting the main shaft of the motor 3, the coupler 8 and the flexible connecting piece 7, so that the three can synchronously rotate.
The flexible connecting piece 7 is in a cylindrical structure with a leak hole, the flexible connecting piece 7 is composed of two circular end covers 11 and a plurality of flexible strips 12, all the flexible strips 12 are positioned between the two circular end covers 11, the two circular end covers 11 are parallel, all the flexible strips 12 are perpendicular to the circular end covers 11, all the flexible strips 12 are uniformly arranged along the circumferential direction, two ends of each flexible strip 12 are respectively and fixedly connected with the two circular end covers 11, a first connecting shaft 13 is fixedly arranged on the outer side of one circular end cover 11, the first connecting shaft 13 is connected with a coupler 8, a pin slot 14 for inserting an axial positioning pin 10 is arranged on the outer wall of the first connecting shaft 13, a second connecting shaft 15 is fixedly arranged on the outer side of the other circular end cover 11, a positioning block 16 is arranged on the outer wall of the second connecting shaft 15, a jack matched with the section shape of the second connecting shaft 15 is arranged at the center of the saw disc 2, the end of the second connecting shaft 15 is provided with a threaded hole 17 for connecting the fastening bolt 9. When the brake mechanism is collapsed to emergently brake the saw disc 2, the instantaneous reverse torque received by the flexible connecting piece 7 exceeds the self deformation limit, and all the flexible strips 12 in the middle of the flexible connecting piece 7 are broken, so that the saw disc 2 is separated from the main shaft of the motor 3. The center of the saw disc 2 is sleeved on the second connecting shaft 15 and fixed at one end of the flexible connecting piece 7 through a fastening bolt 9. The first connecting shaft 13 at the other end of the flexible connecting piece 7 is used for fixedly connecting with the coupler 8.
Detection mechanism sets up in the bottom of workstation 1 through a mounting bracket is fixed, detection mechanism includes L type support 18, cylinder shell 19, first spring 20 and detection brush 21, L type support 18 is fixed to be set up in the first half of mounting bracket, a third connecting axle 22 of outside fixedly connected with of cylinder shell 19, pass through bolted connection between third connecting axle 22 and the L type support 18, the axis direction perpendicular to saw disc 2 of cylinder shell 19, cylinder shell 19 is open structure towards the one end of saw disc 2, it sets up in cylinder shell 19 to detect brush 21 activity, first spring 20 is located cylinder shell 19, and cylinder shell 19 and detection brush 21 are contradicted respectively at first spring 20's both ends, leave the clearance between cylinder shell 19 and the saw disc 2. The detection brush 21 is movably arranged in the cylindrical shell 19 and is abutted by the first spring 20 in the detection cylindrical shell 19, the detection brush 21 is always abutted with the saw disc 2 rotating at a high speed under the action of the first spring 20, the electric conductivity of the saw disc 2 is detected by the detection brush 21, when non-wood materials such as fingers contact the saw disc 2, the detection brush 21 detects that the electric conductivity of the saw disc 2 changes, a signal of the change of the electric conductivity is detected by the crumple brake mechanism, and then the crumple brake mechanism starts to act on the saw disc 2 for emergency braking.
The brake mechanism that contracts bursts includes spacing seat 23, drain pan 24, the aluminium piece 25 that contracts bursts, control panel 26 and elasticity jack-up mechanism, spacing seat 23 is fixed to be set up in the middle part of mounting bracket, drain pan 24 is the fixed lower half that sets up in the mounting bracket of tilt state, the aluminium piece 25 that contracts bursts sets up in the top of drain pan 24, the one end that saw dish 2 was kept away from at the top of aluminium piece 25 that contracts is provided with a articulated seat 27, the one end that saw dish 2 was kept away from to aluminium piece 25 that contracts bursts is articulated with articulated seat 27, control panel 26 and elasticity jack-up mechanism all set up in drain pan 24 inboardly, the upper end of elasticity jack-up mechanism is stretched out drain pan 24 and is linked to each other with the free end of aluminium piece 25 that contracts burst, set up a plurality of and be used for the hole 28 that contracts. The detection electric brush 21 is electrically connected with the control board 26, the control board immediately starts the elastic jacking mechanism to jack the crumple aluminum block 25 upwards after monitoring that the conductivity of the saw disc 2 is changed through the detection electric brush 21, because one end of the crumple aluminum block 25 is hinged with the bottom shell 24, the free end of the crumple aluminum block 25 jacks upwards until contacting the saw disc 2 in high-speed rotation, after the outer edge sawteeth of the saw disc 2 contact the crumple aluminum block 25 and are rigidly braked by the crumple aluminum block 25, the crumple aluminum block 25 can be subjected to strong impact force, and is crumpled and deformed through the crumple hole 28 until the limiting seat 23 above the crumple aluminum block stops, and in the process, the saw disc 2 sinks and falls down by matching with the fracture of the flexible connecting piece 7, so that the danger of finger breakage is prevented.
The elastic jacking mechanism comprises an iron block 29, an electromagnet 30 and a second spring 31, wherein the electromagnet 30 is fixedly arranged at one end, close to the saw disc 2, of the inner part of the bottom shell 24, the iron block 29 is fixedly arranged at the bottom of one end, close to the saw disc 2, of the collapsed aluminum block 25, the second spring 31 is simultaneously sleeved on the outer sides of the iron block 29 and the electromagnet 30, and a concave arc surface structure 32 used for avoiding the outer edge of the saw disc 2 is arranged on one side, close to the saw disc 2, of the collapsed aluminum block 25. The electromagnet 30 is electrically connected with the control board 26, when the control board 26 monitors that the conductivity of the saw disc 2 changes through the detection electric brush 21, the control board 26 cuts off the power of the electromagnet 30, so that the electromagnet 30 loses the suction force on the iron block 29 at the free end of the aluminum crumple block 25, the free end of the aluminum crumple block 25 is jacked up under the action of the second spring 31, and the free end of the aluminum crumple block 25 is collided with the saw disc 2 rotating at high speed to brake the saw disc 2 forcibly.
Translation mechanism has two sets ofly and sets up respectively in the top both ends of workstation 1, every translation mechanism of group all includes step motor 333, threaded rod 34 and slide 35, threaded rod 34 is the level setting, threaded rod 34 is fixed through two axle beds 36 and sets up on workstation 1, the output shaft of step motor 333 and the one end fixed connection of threaded rod 34, slide 35 and the 34 screw-thread fit of threaded rod, the bottom of slide 35 is equipped with the pulley 37 that is used for with workstation 1 top both ends aluminium alloy sliding connection, 6 horizontal bracket of bar baffle is on two translation mechanisms, the both ends of bar baffle 6 respectively with two slide 35 fixed connection. The threaded rod 34 is driven to rotate through the stepping motor 333, the threaded rod 34 rotates on the two shaft seats 36, the sliding seat 35 is connected with the threaded rod 34 through threads, and the bottom of the sliding seat 35 is in sliding fit with a top aluminum profile of the workbench 1 through the pulley 37, so that the sliding seat 35 can be driven to translate along with the rotation of the stepping motor 333, and the two sliding seats 35 drive the strip-shaped baffle 6 to be close to the saw disc 2.
Still be provided with supplementary pushing equipment on the bar baffle 6, supplementary pushing equipment includes side strip 38, remove seat 39, handle 40, connecting seat 41 and push pedal 42, side strip 38 is the horizontal fixation and sets up in the top of bar baffle 6, remove the outside sliding connection of seat 39 and side strip 38, the outside of side strip 38 is provided with the draw runner 43 that is used for supplying to remove seat 39 and connect, connecting seat 41 is fixed to be set up in the bottom of removing seat 39, push pedal 42 is vertical state setting and its first half and connecting seat 41 fixed connection, be provided with two bolt waist grooves 44 that are used for supplying push pedal 42 to adjust vertical height on connecting seat 41, handle 40 is the horizontal fixation and sets up in the outside of removing seat 39. The equipment is also provided with an auxiliary material pushing mechanism for keeping a contact-free plate, a user can drive the push plate 42 to move horizontally through the handle 40, so that the plate is pushed to the saw disc 2 through the push plate 42, the height of the lower end of the push plate 42 is adjusted through the bolt waist groove 44 on the connecting seat 41, and the lower end of the push plate 42 can contact the plate.
The working principle is as follows: when in use, the plate is placed on the workbench 1 and is pushed to the saw disc 2 rotating at high speed for cutting. The electric conductivity of the saw disc 2 is detected by detecting the electric brush 21, when non-wood materials such as fingers contact the saw disc 2, the electric brush 21 detects that the electric conductivity of the saw disc 2 changes, the control disc immediately starts the elastic jacking mechanism to jack the crumple aluminum block 25 upwards after monitoring that the electric conductivity of the saw disc 2 changes by detecting the electric brush 21, because one end of the crumple aluminum block 25 is hinged with the bottom shell 24, the free end of the crumple aluminum block 25 jacks upwards until contacting the saw disc 2 in high-speed rotation, after the outer edge sawteeth of the saw disc 2 contact the crumple aluminum block 25 and are rigidly braked by the crumple aluminum block 25, the crumple aluminum block 25 can be subjected to strong impact force and is crumpled and deformed by the self-crumple hole 28 until abutting against the upper limit seat 23 to stop, in the process, the instant reverse torque received by the flexible connecting piece 7 exceeds the self-deformation limit, so that all the flexible strips 12 in the middle of the flexible connecting piece 7 are broken, thereby separating the saw disc 2 from the main shaft of the motor 3, leading the saw disc 2 to sink and fall off, and preventing the danger of finger breakage.
The foregoing has described the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A safe sawing machine with double protection effects is characterized by comprising a workbench (1), a plate limiting mechanism, a saw disc (2), a motor (3), an active protection mechanism (4) and a passive protection mechanism, wherein the saw disc (2) and the motor (3) are arranged at the bottom of the workbench (1), an output shaft of the motor (3) is fixedly connected with the center of the saw disc (2) through the passive protection mechanism, the active protection mechanism (4) is fixedly arranged at the bottom of the workbench (1) and positioned beside the saw disc (2), the plate limiting mechanism is arranged at the top of the workbench (1), and a strip-shaped through groove (5) which is used for upwards extending out of the saw disc (2) is formed in the workbench (1);
the plate limiting mechanism comprises a translation mechanism and a strip-shaped baffle (6) arranged on the translation mechanism, the strip-shaped baffle (6) is used for abutting and limiting one end of a plate on the workbench (1), and the length direction of the strip-shaped baffle (6) is consistent with the direction of the strip-shaped through groove (5);
the active protection mechanism (4) comprises a monitoring mechanism for detecting the conductivity of the saw disc (2) and a collapse brake mechanism for reversely braking the saw disc (2);
the passive protection mechanism is used for being matched with the collapse brake mechanism to separate the saw disc (2) from the motor (3).
2. The safety sawing machine with the dual protection effects as claimed in claim 1, wherein the passive protection mechanism comprises a flexible connecting member (7), a coupler (8) and a fastening bolt (9), a vertical supporting plate is fixedly arranged at the bottom of the workbench (1), the motor (3) is fixedly arranged at one side of the supporting plate in a horizontal state, the sawing disc (2) is arranged at the other side of the supporting plate, two ends of the coupler (8) are respectively connected with the flexible connecting member (7) and an output shaft of the motor (3), an axial positioning pin (10) is arranged in the coupler (8), the axial positioning pin (10) is embedded on the output shaft of the motor (3) and an inner wall of the coupler (8), and the fastening bolt (9) fixedly connects the sawing disc (2) at one end of the flexible connecting member (7) far away from the coupler (8).
3. The safety sawing machine with the dual protection effect according to claim 2 is characterized in that the flexible connecting piece (7) is of a perforated cylindrical structure, the flexible connecting piece (7) is composed of two circular end covers (11) and a plurality of flexible strips (12), all the flexible strips (12) are located between the two circular end covers (11), the two circular end covers (11) are parallel to each other, all the flexible strips (12) are perpendicular to the circular end covers (11), all the flexible strips (12) are uniformly arranged along the circumferential direction, both ends of each flexible strip (12) are fixedly connected with the two circular end covers (11), a first connecting shaft (13) is fixedly arranged on the outer side of one circular end cover (11), the first connecting shaft (13) is connected with the coupler (8), a pin groove (14) for inserting the axial positioning pin (10) is formed in the outer wall of the first connecting shaft (13), a second connecting shaft (15) is fixedly arranged on the outer side of the other circular end cover (11), a positioning block (16) is arranged on the outer wall of the second connecting shaft (15), a jack matched with the cross section of the second connecting shaft (15) in shape is formed in the center of the saw disc (2), and a threaded hole (17) for connecting a fastening bolt (9) is formed in the end of the second connecting shaft (15).
4. The safety sawing machine with the dual protection effect as claimed in claim 1, wherein the detection mechanism is fixedly arranged at the bottom of the worktable (1) through a mounting bracket, the detection mechanism comprises an L-shaped bracket (18), a cylindrical shell (19), a first spring (20) and a detection brush (21), the L-shaped bracket (18) is fixedly arranged at the upper half part of the mounting bracket, a third connecting shaft (22) is fixedly connected to the outer side of the cylindrical shell (19), the third connecting shaft (22) is connected with the L-shaped bracket (18) through a bolt, the axial direction of the cylindrical shell (19) is perpendicular to the saw disc (2), one end of the cylindrical shell (19) facing the saw disc (2) is of an open structure, the detection brush (21) is movably arranged in the cylindrical shell (19), the first spring (20) is arranged in the cylindrical shell (19), and the two ends of the first spring (20) respectively abut against the cylindrical shell (19) and the detection brush (21), a gap is reserved between the cylindrical shell (19) and the saw disc (2).
5. The safety sawing machine with double protection effects as claimed in claim 4, wherein the collapsing brake mechanism comprises a limiting seat (23), a bottom case (24), a collapsing aluminum block (25), a control panel (26) and an elastic jacking mechanism, the limiting seat (23) is fixedly arranged in the middle of the mounting frame, the bottom case (24) is fixedly arranged in the lower half of the mounting frame in an inclined state, the collapsing aluminum block (25) is arranged on the top of the bottom case (24), a hinged seat (27) is arranged at one end of the top of the collapsing aluminum block (25) far away from the saw disc (2), one end of the collapsing aluminum block (25) far away from the saw disc (2) is hinged with the hinged seat (27), the control panel (26) and the elastic jacking mechanism are both arranged inside the bottom case (24), the upper end of the elastic jacking mechanism extends out of the bottom case (24) and is connected with the free end of the collapsing aluminum block (25), a plurality of collapsing holes (28) for deformation under pressure are arranged on the collapsing aluminum block (25), the limiting seat (23) is positioned above the crumple aluminum block (25).
6. The safety sawing machine with the dual protection effect as claimed in claim 5, wherein the elastic jacking mechanism comprises an iron block (29), an electromagnet (30) and a second spring (31), the electromagnet (30) is fixedly arranged inside the bottom shell (24) and close to one end of the saw disc (2), the iron block (29) is fixedly arranged at the bottom of one end of the crumple aluminum block (25) close to the saw disc (2), the second spring (31) is sleeved outside the iron block (29) and the electromagnet (30), and a concave arc structure (32) for avoiding the outer edge of the saw disc (2) is arranged on one side of the crumple aluminum block (25) close to the saw disc (2).
7. A safety sawing machine with double protection effect according to claim 1 characterised by that there are two sets of translation mechanisms and each set is set on the top end of the working table (1) and each set of translation mechanism includes a stepping motor (33) (3), threaded rod (34) and slide (35), threaded rod (34) are the level setting, threaded rod (34) are fixed through two axle bed (36) and are set up on workstation (1), the output shaft of step motor (33) (3) and the one end fixed connection of threaded rod (34), slide (35) and threaded rod (34) screw-thread fit, the bottom of slide (35) is equipped with pulley (37) that are used for with workstation (1) top both ends aluminium alloy sliding connection, bar baffle (6) horizontal bracket is located on two translation mechanism, the both ends of bar baffle (6) respectively with two slide (35) fixed connection.
8. The safety sawing machine with double protection effects as claimed in claim 7, wherein the strip-shaped baffle (6) is further provided with an auxiliary pushing mechanism, the auxiliary pushing mechanism comprises a side strip (38) and a moving seat (39), handle (40), connecting seat (41) and push pedal (42), side strip (38) are the horizontal fixation and set up in the top of bar baffle (6), remove the outside sliding connection of seat (39) and side strip (38), the outside of side strip (38) is provided with draw runner (43) that are used for supplying to remove seat (39) to connect, connecting seat (41) are fixed to be set up in the bottom of removing seat (39), push pedal (42) are vertical state setting and its first half and connecting seat (41) fixed connection, be provided with two on connecting seat (41) and be used for supplying push pedal (42) to adjust vertical height's bolt waist groove (44), handle (40) are the horizontal fixation and set up in the outside of removing seat (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891289.6A CN111993495A (en) | 2020-08-30 | 2020-08-30 | Safe sawing machine with dual protection effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891289.6A CN111993495A (en) | 2020-08-30 | 2020-08-30 | Safe sawing machine with dual protection effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111993495A true CN111993495A (en) | 2020-11-27 |
Family
ID=73465663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010891289.6A Withdrawn CN111993495A (en) | 2020-08-30 | 2020-08-30 | Safe sawing machine with dual protection effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111993495A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635401A (en) * | 2021-09-06 | 2021-11-12 | 玖陆零信安创(盐城)科技有限公司 | Intelligence wooden board cutting device for house |
| CN114029548A (en) * | 2021-11-19 | 2022-02-11 | 江苏金飞达电动工具有限公司 | Accelerating and separating device for cutting saw |
| EP4275854A1 (en) * | 2022-05-12 | 2023-11-15 | Festool GmbH | Blocking element for an emergency braking unit of a sawing device and sawing device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859156A (en) * | 1986-07-23 | 1989-08-22 | Sanden Corporation | Coupling mechanism for a compressor |
| CN1460054A (en) * | 1999-10-01 | 2003-12-03 | Sd3有限责任公司 | Safety systems for power equipment |
| US20040226424A1 (en) * | 2001-07-11 | 2004-11-18 | O'banion Michael | Power tool safety mechanisms |
| US20080184857A1 (en) * | 2003-08-20 | 2008-08-07 | Gass Stephen F | Brake cartridges for power equipment |
| US20100050843A1 (en) * | 2008-08-18 | 2010-03-04 | Gass Stephen F | Table saw |
| US20100132524A1 (en) * | 2000-09-29 | 2010-06-03 | Gass Stephen F | Contact detection system for power equipment |
| US20140290455A1 (en) * | 2013-04-01 | 2014-10-02 | Stephen F. Gass | Apparatus for detecting dangerous conditions in power equipment |
| US20170312837A1 (en) * | 2003-12-31 | 2017-11-02 | Sd3, Llc | Table saws |
| CN107457835A (en) * | 2017-09-12 | 2017-12-12 | 安徽理工大学 | A kind of automatically controlled protection bench saw and its control method based on capacitance touch principle |
| CN109822680A (en) * | 2017-11-23 | 2019-05-31 | 李海飞 | A kind of woodwork sawing machine |
| CN111438788A (en) * | 2020-05-14 | 2020-07-24 | 张锐 | Furniture wooden door processing system and processing method |
-
2020
- 2020-08-30 CN CN202010891289.6A patent/CN111993495A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859156A (en) * | 1986-07-23 | 1989-08-22 | Sanden Corporation | Coupling mechanism for a compressor |
| CN1460054A (en) * | 1999-10-01 | 2003-12-03 | Sd3有限责任公司 | Safety systems for power equipment |
| US20100132524A1 (en) * | 2000-09-29 | 2010-06-03 | Gass Stephen F | Contact detection system for power equipment |
| US20040226424A1 (en) * | 2001-07-11 | 2004-11-18 | O'banion Michael | Power tool safety mechanisms |
| US20080184857A1 (en) * | 2003-08-20 | 2008-08-07 | Gass Stephen F | Brake cartridges for power equipment |
| US20170312837A1 (en) * | 2003-12-31 | 2017-11-02 | Sd3, Llc | Table saws |
| US20100050843A1 (en) * | 2008-08-18 | 2010-03-04 | Gass Stephen F | Table saw |
| US20140290455A1 (en) * | 2013-04-01 | 2014-10-02 | Stephen F. Gass | Apparatus for detecting dangerous conditions in power equipment |
| CN107457835A (en) * | 2017-09-12 | 2017-12-12 | 安徽理工大学 | A kind of automatically controlled protection bench saw and its control method based on capacitance touch principle |
| CN109822680A (en) * | 2017-11-23 | 2019-05-31 | 李海飞 | A kind of woodwork sawing machine |
| CN111438788A (en) * | 2020-05-14 | 2020-07-24 | 张锐 | Furniture wooden door processing system and processing method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635401A (en) * | 2021-09-06 | 2021-11-12 | 玖陆零信安创(盐城)科技有限公司 | Intelligence wooden board cutting device for house |
| CN113635401B (en) * | 2021-09-06 | 2022-04-01 | 玖陆零信安创(盐城)科技有限公司 | Intelligence wooden board cutting device for house |
| CN114029548A (en) * | 2021-11-19 | 2022-02-11 | 江苏金飞达电动工具有限公司 | Accelerating and separating device for cutting saw |
| EP4275854A1 (en) * | 2022-05-12 | 2023-11-15 | Festool GmbH | Blocking element for an emergency braking unit of a sawing device and sawing device |
| WO2023217788A1 (en) * | 2022-05-12 | 2023-11-16 | Festool Gmbh | Blocking element for an emergency brake unit of a saw device, and saw device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111993495A (en) | Safe sawing machine with dual protection effect | |
| CN212599715U (en) | Material taking device of multifunctional laser precision cutting machine | |
| KR101345024B1 (en) | Check device of spindle tool clamp for machine tool | |
| CN110935910B (en) | Inclined plane inclined punching machine tool and working method of cutter breakage preventing device | |
| CN214719720U (en) | Stamping device for automobile central control instrument framework | |
| CN215660401U (en) | Efficient film cutting tool | |
| CN213944460U (en) | Device for stamping aircraft parts | |
| CN201516622U (en) | Cutter carrier of constant slitting machine | |
| CN216420814U (en) | Stamping die is used in automobile spare and accessory part processing convenient to calibration location | |
| CN216068791U (en) | Punching machine for machining rubber mat | |
| CN217991653U (en) | Material object processing platform for industrial design | |
| CN220515238U (en) | Metal processing base for automobile brake stamping part | |
| CN210819983U (en) | Novel woodworking milling machine workbench | |
| CN219852317U (en) | Milling machine device capable of preventing cutting oil from sputtering | |
| CN111376223A (en) | Numerical control cutter placing rack | |
| CN110871364A (en) | Tool unloading mechanism of tool magazine for numerical control machine tool | |
| CN110935911B (en) | Inclined plane inclined punching machine tool and cutter breaking prevention device | |
| CN217291773U (en) | Arc-shaped sample block processing device | |
| CN217393905U (en) | Device for preventing broaching machine from breaking due to misoperation | |
| CN219768454U (en) | Protective structure of deep embossing die cutting machine | |
| CN210755542U (en) | Self-service stop saw cuts device convenient to maintain | |
| CN219234616U (en) | Positioning mechanism of steel processing numerical control gantry double-end milling machine | |
| CN112276249A (en) | Hydrovalve parts machining is with cuting device convenient to location | |
| CN217530193U (en) | Protection mechanism for machining center | |
| CN219727306U (en) | Hydraulic press with safety protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201127 |
|
| WW01 | Invention patent application withdrawn after publication |