CN113997358A

CN113997358A - Cutting injury and sudden stop prevention device for cutting machine blade for wood processing

Info

Publication number: CN113997358A
Application number: CN202111309819.2A
Authority: CN
Inventors: 张晶; 李刚; 贾潇然; 崔立东; 张晔; 徐林; 王春霞; 崔晓磊
Original assignee: Chuangzhi Hainan Technology Co ltd
Current assignee: Chuangzhi Hainan Technology Co ltd
Priority date: 2021-11-07
Filing date: 2021-11-07
Publication date: 2022-02-01

Abstract

The invention provides a cutting machine blade cutting injury and sudden stop prevention device for wood processing, and relates to the field of cutting machine protection devices. Cutting is prevented cutting scram device by cutting machine blade for wood working, including base, the mount pad of setting in base upper end one side, rotate through torsional spring and pivot on the mount pad and be provided with the linking arm, the other end fixedly connected with cutting frame of linking arm, the back wall of cutting frame leans on the fixed motor case that is provided with of center department, the front end of motor case leans on upside fixedly connected with manipulator arm, the inner of motor case is provided with the motor, the fixed two limiting plates that are provided with in inner of motor case, the motor sets up between two limiting plates, the cutting frame is close to the frame of center department and has seted up the locating hole on one's body. The emergency stop device designed by the invention can automatically and immediately stop when the wood cutting process is blocked, so that the cutting wheel is not damaged, and the use safety of the device is ensured.

Description

Cutting injury and sudden stop prevention device for cutting machine blade for wood processing

Technical Field

The invention relates to the technical field of cutting machine protection devices, in particular to a cutting machine blade anti-cutting sudden stop device for wood processing.

Background

In the wood processing process, a cutting machine is needed to cut the wood into a certain specification and size. Among the most vulnerable structures of a cutting machine in use are the cutting machine blades. The wood is mostly in a regular shape, but the inner end of the wood is irregular, in this case, the cutting of the cutting machine is blocked, and the forced cutting can cause the blade opening to be damaged in the cutting process.

The prior patent (CN210819948U) discloses a wood cutting machine, relates to the field of wood processing equipment, and solves the problem that wood chips splash in disorder when the existing cutting machine cuts wood, and comprises a saw blade driven by a motor and an arc cover covered on the saw blade, wherein chip blocking pieces are arranged at two ends of the arc cover, one side of the arc cover far away from the saw blade is provided with a mounting groove for the chip blocking pieces to be mounted in a matched manner, one side of the chip blocking piece far away from the ground and mutually butted with the arc cover is integrally provided with a first dovetail block, and the arc cover is provided with a first dovetail groove for the first dovetail block to be mounted and mutually communicated with the mounting groove; one side that the saw bit was kept away from to the arc cover is provided with the connecting block that contradicts each other with keeping off the bits piece, and the connector has been seted up to one side that the arc cover was kept away from to the connecting block, keeps off the bits piece on an organic whole be provided with the fixed block of connector mutual joint fixed. Through the utility model discloses a have the indiscriminate problem that splashes of saw-dust when effectively preventing cutting machine cutting timber, the device can't realize cutting blade's scram when cutting timber, and the blade damages easily.

Still patent (CN107962242A) discloses a semi-automatic cutting machine that can scram, is provided with brake equipment on this cutting machine, apart from a palm with the shift knob, the palm pushes down the handle when pressing motor button, and the handle passes through opening and shutting of brake lining control brake block, realizes holding tightly or loosening to the saw bit to realize the scram of cutting knife. However, the emergency stop device in this device is manually controlled, and since the cutting blade rotates at a very high speed, the blade may still be damaged after the blade has been in contact with the wood several times during the reaction time of the person, and further improvements to the prior art are needed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a cutting machine blade cutting injury emergency stop device for wood processing, which solves the problem that the blade of the existing wood cutting machine cannot be rapidly and emergently stopped under the condition that the blade is easy to damage due to hard materials in the wood cutting process.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a cutting injury and sudden stop prevention device for a cutting machine blade for wood processing comprises a base and a mounting seat arranged on one side of the upper end of the base, wherein a connecting arm is arranged on the mounting seat in a rotating mode through a torsion spring and a rotating shaft, the other end of the connecting arm is fixedly connected with a cutting frame, a motor box is fixedly arranged on the rear wall of the cutting frame close to the center, a control arm is fixedly connected to the front end of the motor box close to the upper side, a motor is arranged at the inner end of the motor box, two limiting plates are fixedly arranged at the inner end of the motor box, the motor is arranged between the two limiting plates, a positioning hole is formed in the frame body of the cutting frame close to the center, an output shaft of the motor penetrates through the positioning hole and is sleeved with a cutting wheel, and a fixing nut is sleeved on the output shaft of the motor close to the outer end through a thread;

a limiting slide seat is arranged inside the positioning hole close to the upper end in a matched sliding mode, a plurality of guide rods are fixedly connected to the side wall of the limiting slide seat close to the upper end, the other ends of the guide rods are communicated with the inner wall of the cutting frame, a reset spring is sleeved on a rod body of each guide rod, a contact rod is fixedly connected to the center of the side wall of the limiting slide seat close to the upper end, a pressure sensor corresponding to the contact rod is fixedly arranged on the inner wall of the positioning hole close to the upper end, a controller is further fixedly arranged at the inner end of the motor box, and the controller is electrically connected with the pressure sensor;

the cutting frame by the top department seted up the spout, the inner slip of spout is provided with the slider, just the inboard fixedly connected with emergency stop cover of slider, emergency stop cover is located the upper end of cutting wheel, the outside fixedly connected with connecting block of slider, the fixed electronic jar that is provided with on the last lateral wall of motor case, the output and the connecting block fixed connection of electronic jar, electronic jar also with controller electric connection.

Preferably, a fixing plate is fixedly connected to the position close to the upper end between the inner walls of the two limiting plates, a plurality of top springs are fixedly connected to the lower wall of the fixing plate, a top plate is fixedly connected to the other ends of the top springs, and the top plate is tightly attached to the upper wall of the motor.

Preferably, the rear wall of the motor case is detachably arranged.

Preferably, rectangular grooves are formed in two side walls of the positioning hole, two sides of the limiting sliding seat slide in the rectangular grooves in a matched mode, and the lower end of the limiting sliding seat is tightly attached to the output shaft of the motor.

Preferably, the inner end of the cutting frame is provided with a through hole corresponding to the guide rod, and the guide rod is communicated with the inner end of the through hole.

Preferably, the emergency stop sleeve is in an arc plate shape and made of high-hardness steel, a groove which gradually narrows from bottom to top is formed in the inner end of the emergency stop sleeve, and a wear-resistant rubber pad is fixedly arranged on the inner wall of the groove.

Preferably, the direction of the sliding groove is perpendicular to the side wall of the output shaft of the motor.

Preferably, the two sides of the motor are clung to the inner wall of the limiting plate, and the lower wall of the motor is clung to the motor box.

(III) advantageous effects

The invention provides a cutting machine blade anti-cutting sudden stop device for wood processing. The method has the following beneficial effects:

1. in the invention, an emergency stop structure for preventing the damage of the blade is arranged in the cutting machine, wherein a pressure sensor is arranged in a positioning hole of a motor, a rotating shaft of the motor is limited by a limiting sliding seat, a contact rod is arranged on the sliding seat, under normal conditions, the motor is limited at the lowest end of the positioning hole by the limiting sliding seat and a spring structure at the rear end, when hard materials are encountered during wood cutting, the blade can be difficult to rotate, at the moment, the rotating shaft of the motor cannot keep still in the positioning hole due to the fact that an operator operates the blade to press down, the rotating shaft of the motor can deflect upwards slightly, the contact rod can be driven to touch the pressure sensor, the pressure sensor can send signals to a controller after being stressed, the controller controls an electric cylinder to work, the electric cylinder drives an emergency stop sleeve to move downwards to clamp a cutting wheel, and accordingly emergency stop of the cutting wheel is realized.

2. According to the invention, the cutting wheel is subjected to automatic control through the linkage of the pressure sensor, the controller and the electric cylinder, namely, the automatic emergency stop is realized, and the cutting wheel is subjected to emergency stop immediately when the cutting process is blocked.

3. According to the invention, the structure capable of ensuring that the motor and the motor shaft are simultaneously deviated is arranged in the motor box, so that the motor and the cutting wheel are prevented from being damaged during working, and the safety is good.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a rear side schematic view of the structure of the present invention;

FIG. 3 is a side view of the structure of the present invention;

FIG. 4 is a top view of the structure of the present invention;

FIG. 5 is a schematic view of the electric cylinder and its upper end connection according to the present invention;

FIG. 6 is a front view of the cutting frame of the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 6;

fig. 8 is a schematic view of the internal structure of the motor case of the present invention.

Wherein, 1, a base; 2. a mounting seat; 3. a connecting arm; 4. a cutting frame; 5. a motor case; 6. an operating arm; 7. a motor; 8. a limiting plate; 9. a fixing plate; 10. a top plate; 11. a controller; 12. a spring is supported; 13. positioning holes; 14. a cutting wheel; 15. fixing a nut; 16. a limiting sliding seat; 17. a guide bar; 18. a return spring; 19. a feeler lever; 20. a pressure sensor; 21. an electric cylinder; 22. connecting blocks; 23. a chute; 24. a slider; 25. and (5) emergency stopping.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1-8, an embodiment of the invention provides a cutting machine blade cut-injury-preventing emergency stop device for wood processing, which comprises a base 1 and a mounting base 2 arranged on one side of the upper end of the base 1, wherein a connecting arm 3 is rotatably arranged on the mounting base 2 through a torsion spring and a rotating shaft, the other end of the connecting arm 3 is fixedly connected with a cutting frame 4, a motor box 5 is fixedly arranged on the rear wall of the cutting frame 4 close to the center, the rear wall of the motor box 5 is detachably arranged, so that the internal structure can be conveniently installed and maintained, and an operating arm 6 is fixedly connected to the front end of the motor box 5 close to the upper side.

The inner end of the motor box 5 is provided with a motor 7, the inner end of the motor box 5 is fixedly provided with two limiting plates 8, the motor 7 is arranged between the two limiting plates 8, two sides of the motor 7 are clung to the inner walls of the limiting plates 8, the lower wall is clung to the motor box 5, a fixing plate 9 is fixedly connected between the inner walls of the two limiting plates 8 near the upper end, the lower wall of the fixing plate 9 is fixedly connected with three top springs 12, the other ends of the three top springs 12 are fixedly connected with a top plate 10, and the top plate 10 is clung to the upper wall of the motor 7, through the cooperation of limiting plate 8, top spring 12, roof 10, fix motor 7 in motor case 5, cutting frame 4 has seted up locating hole 13 on being close to the frame body of center department, and the output shaft of motor 7 runs through locating hole 13 and overlaps and be equipped with cutting wheel 14, and motor 7 output shaft leans on outer end thread bush to be equipped with fixation nut 15, and fixation nut 15 is used for fixing cutting wheel 14.

The inside of locating hole 13 is close to upper end department cooperation slip and is provided with spacing slide 16, rectangular channel has all been seted up on the both sides wall of locating hole 13, the both sides of spacing slide 16 are at the rectangular channel fit slip, the lower extreme of spacing slide 16 hugs closely the output shaft of motor 7, spacing slide 16 is close to a plurality of guide bars 17 of fixedly connected with on the upper end lateral wall, the other end of a plurality of guide bars 17 leads to in cutting frame 4 inner wall, the inner of cutting frame 4 is seted up the through-hole that corresponds with guide bar 17, guide bar 17 leads to the through-hole inner, the cover is equipped with reset spring 18 on the pole body of guide bar 17, reset spring 18 and foretell top spring 12 all select high strength spring for use, guarantee that motor 7 can not squint easily, under the normal use condition, reset spring 18 compresses tightly spacing slide 16, make the pivot of motor 7 be located the bottommost of locating hole 13, guarantee that cutting wheel 14 normally functions. Spacing slide 16 by upper end lateral wall center fixedly connected with feeler lever 19, locating hole 13 by fixed pressure sensor 20 that is provided with and feeler lever 19 and corresponds on the upper end inner wall, the inner of motor case 5 still fixedly is provided with controller 11, and controller 11 and pressure sensor 20 electric connection, fixed electronic jar 21 that is provided with on the last lateral wall of motor case 5, electronic jar 21 also with controller 11 electric connection, when feeler lever 19 and pressure sensor 20 contact, pressure sensor 20 can work and send control signal to controller 11, controller 11 can send control signal to electronic jar 21, control its flexible work.

Cutting frame 4 by top department seted up spout 23, spout 23's trend and motor 7 pivot remain perpendicular, spout 23's the inner slides and is provided with slider 24, and slider 24's inboard fixedly connected with emergency stop cover 25, emergency stop cover 25 is located the upper end of cutting wheel 14, emergency stop cover 25 sets arc platelike, and make by high hardness steel, a supreme groove that narrows down gradually is seted up to its inner end, and the fixed wear-resisting rubber pad that is provided with on the inslot wall, slider 24's outside fixedly connected with connecting block 22, the output and the connecting block 22 fixed connection of electronic jar 21.

In the cutting process, when hard materials are encountered during cutting of wood, the cutting wheel 14 is difficult to rotate, at the moment, because an operator operates the cutting wheel 14 to press down, a rotating shaft of the motor 7 cannot be kept immovable in the positioning hole 13 and can be slightly deviated upwards, the contact rod 19 can be driven to touch the pressure sensor 20, the pressure sensor 20 can send a signal to the controller 11 after being stressed, the controller 11 controls the electric cylinder 21 to retract, the electric cylinder 21 retracts, the sliding block 24 and the emergency stop sleeve 25 are driven to move downwards when the electric cylinder 21 retracts, the cutting wheel 14 is clamped tightly, so that the cutting wheel 14 is emergently stopped, when the cutting wheel 14 is lifted upwards, the external force is lost, the motor 7 returns to the original position, the contact rod 19 is separated from the pressure sensor 20, at the moment, the pressure sensor 20 sends a signal to the controller 11 again, the controller 11 controls the electric cylinder 21 to extend, so that the emergency stop sleeve 25 is separated from the cutting wheel 14, the machine works normally again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cutting machine blade prevents incised wound scram device for wood working, includes base (1), sets up mount pad (2) in base (1) upper end one side, rotates through torsional spring and pivot on mount pad (2) and is provided with linking arm (3), and the other end fixedly connected with cutting frame (4) of linking arm (3), its characterized in that: a motor box (5) is fixedly arranged on the rear wall of the cutting frame (4) close to the center, a control arm (6) is fixedly connected to the front end of the motor box (5) close to the upper side, a motor (7) is arranged at the inner end of the motor box (5), two limiting plates (8) are fixedly arranged at the inner end of the motor box (5), the motor (7) is arranged between the two limiting plates (8), a positioning hole (13) is formed in the frame body of the cutting frame (4) close to the center, an output shaft of the motor (7) penetrates through the positioning hole (13) and is sleeved with a cutting wheel (14), and a fixing nut (15) is screwed on the outer end of the output shaft of the motor (7);

a limiting slide seat (16) is arranged inside the positioning hole (13) close to the upper end in a matched sliding mode, a plurality of guide rods (17) are fixedly connected to the side wall of the upper end of the limiting slide seat (16) close to the inner wall of the cutting frame (4) at the other ends of the guide rods (17), a reset spring (18) is sleeved on the rod body of each guide rod (17), a contact rod (19) is fixedly connected to the center of the side wall of the upper end of the limiting slide seat (16) close to the center of the side wall of the upper end, a pressure sensor (20) corresponding to the contact rod (19) is fixedly arranged on the inner wall of the upper end of the positioning hole (13) close to the inner wall of the upper end, a controller (11) is fixedly arranged at the inner end of the motor box (5), and the controller (11) is electrically connected with the pressure sensor (20);

cutting frame (4) by top department seted up spout (23), the inner slip of spout (23) is provided with slider (24), just inboard fixedly connected with emergency stop cover (25) of slider (24), emergency stop cover (25) are located the upper end of cutting wheel (14), the outside fixedly connected with connecting block (22) of slider (24), fixed electronic jar (21) that is provided with on the last lateral wall of motor case (5), the output and the connecting block (22) fixed connection of electronic jar (21), electronic jar (21) also with controller (11) electric connection.

2. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: two lean on upper end department fixedly connected with fixed plate (9) between limiting plate (8) inner wall, a plurality of top springs (12) of fixedly connected with on the lower wall of fixed plate (9), it is a plurality of the other end fixedly connected with roof (10) of top spring (12), just roof (10) are hugged closely with the upper wall of motor (7).

3. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: the rear wall of the motor box (5) is detachable.

4. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: rectangular grooves are formed in two side walls of the positioning hole (13), two sides of the limiting sliding seat (16) slide in the rectangular grooves in a matched mode, and the lower end of the limiting sliding seat (16) is tightly attached to an output shaft of the motor (7).

5. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: the inner end of the cutting frame (4) is provided with a through hole corresponding to the guide rod (17), and the guide rod (17) is communicated with the inner end of the through hole.

6. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: the emergency stop sleeve (25) is in an arc plate shape and made of high-hardness steel, a groove which gradually narrows from bottom to top is formed in the inner end of the emergency stop sleeve, and a wear-resistant rubber pad is fixedly arranged on the inner wall of the groove.

7. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: the direction of the sliding groove (23) is vertical to the side wall of the output shaft of the motor (7).

8. The cutter blade cut-injury emergency stop device for wood working according to claim 1, characterized in that: the two sides of the motor (7) are tightly attached to the inner wall of the limiting plate (8), and the lower wall of the motor is tightly attached to the motor box (5).