CN107053351B

CN107053351B - Plank processingequipment

Info

Publication number: CN107053351B
Application number: CN201710221443.7A
Authority: CN
Inventors: 赵友华
Original assignee: Feixian Jiuxin Wood Industry Co ltd
Current assignee: Feixian Jiuxin Wood Industry Co ltd
Priority date: 2017-04-06
Filing date: 2017-04-06
Publication date: 2023-06-30
Anticipated expiration: 2037-04-06
Also published as: CN107053351A

Abstract

The invention relates to a wood processing device, in particular to a sawing machine feeding device for preventing wood boards from rebounding. The device comprises a frame, a motor, a feeding device and a plurality of compressing devices, wherein the compressing devices are arranged on the upper side of the feeding device and comprise a plurality of compressing structures and rebound preventing structures; the compressing structure comprises a first cylinder, a first one-way valve and a second one-way valve are arranged on the first cylinder, a first piston is arranged in the first cylinder, a pressure spring is arranged in the first cylinder, a first piston rod is fixed at the lower end of the first piston, and a compressing piece is connected at the lower end of the first piston rod; the rebound prevention structure comprises a second cylinder, a third one-way valve is arranged on the second cylinder, a switch is arranged on the rebound prevention structure, a second piston is connected in the second cylinder in a sliding manner, a second piston rod is fixed at the lower end of the second piston, and a rebound prevention piece is connected at the lower end of the second piston rod. Rebound this scheme can autoloading, in whole pay-off in-process, can play the effect that prevents the plank bounce-back always.

Description

Plank processingequipment

Technical Field

The invention relates to a wood processing device, in particular to a sawing machine feeding device for preventing wood boards from rebounding.

Background

Wood is widely used in interior trim and furniture manufacture, and prior to use, it is required to process the wood into a board. At present, a sawing machine is generally used for cutting wood into wood boards, or a larger wood board is cut into a smaller wood board, but when the sawing machine breaks down or is clamped by the wood board during feeding, the saw blade and the wood board vibrate firstly, and then the saw blade and the wood board rebound in opposite directions.

The saw blade of the existing wood sawing machine is generally fixed on the frame, so that the saw blade can be effectively prevented from rebounding to cut staff. But the wood board still can rebound, the rebound force of the wood board is very large, and the personnel for feeding can be directly injured by smashing, so that the personal safety of the personnel is affected.

The patent application number 201410402030.5 of the publication 12/17 in 2014 discloses an anti-rebound device of a log sawing machine, which comprises a transmission device arranged at the upper side and the lower side, a rolling roller arranged between the transmission devices at the upper side and the lower side, a rolling bearing in rolling connection with the rolling roller, a U-shaped fixing frame fixedly connected with the rolling bearing, a supporting frame welded with the U-shaped fixing frame, a fixed pipe connected with the supporting frame, a movable pipe arranged at the inner side of the fixed pipe and movably connected with the fixed pipe, a supporting pipe connected with the movable pipe, a vertical rod connected with the supporting pipe, a movable shaft connected with the vertical rod, a movable rod movably connected with the movable shaft, a fixed rod arranged below the movable rod, a cross rod arranged above the rolling roller, a connecting angle plate connected with one side of the cross rod, and a stop rod movably connected with the connecting angle plate, wherein the stop rod is arranged at the left side of the rolling roller.

The rebound prevention device utilizes the stop lever to stop the rebound of the wood board, when the wood board is just positioned under the cross rod, the baffle is in a state of being jacked up by the wood board, and if the wood board rebounds at the moment, the baffle cannot play a role in preventing the rebound. Secondly, the rebound prevention device uses the rolling roller to enable the wood board to move to one side of the saw blade, however, a pressing structure is not arranged above the wood board, so that when the saw blade cuts the wood board, relative sliding can occur between the wood board and the rolling roller, and only the wood board on which the rolling roller is subsequently placed can be used for pushing the front wood board forwards, so that simultaneous automatic feeding and wood board cutting cannot be realized. In addition, when the following wood boards are used for pushing the front wood boards forwards, the two wood boards are tightly abutted together, so that the stop lever jacked by the front wood board can be always jacked by the rear wood board, and the stop lever loses the effect of preventing rebound.

Disclosure of Invention

The invention aims to provide an automatic wood board cutting feeding device for preventing wood boards from rebounding.

In order to achieve the above purpose, the technical scheme of the invention is as follows: the wood board processing device comprises a frame, a motor, a feeding device, a plurality of pressing devices, a plurality of elastic components and a plurality of elastic components, wherein the motor and the feeding device are fixed on the frame; the compressing structure comprises a first cylinder, a first one-way valve and a second one-way valve are arranged on the first cylinder, a first piston is slidably arranged in the first cylinder, a pressure spring which abuts against the upper end face of the first piston is arranged in the first cylinder, a first piston rod is fixed at the lower end of the first piston, and a compressing piece is connected at the lower end of the first piston rod; the rebound prevention structure comprises a second cylinder, a third one-way valve is arranged on the second cylinder, a switch for opening and closing the third one-way valve is arranged on the rebound prevention structure, a second piston is connected in the second cylinder in a sliding manner, a second piston rod is fixed at the lower end of the second piston, and a rebound prevention piece is connected at the lower end of the second piston rod.

The motor drives the feeding device to place the wood board on the feeding device, and the feeding device drives the wood board to move towards the saw blade. The compressing device is located above the wood board, the compression spring is connected between the first piston and the first cylinder, and under the action of the compression spring, the compressing piece is pressed on the wood board, so that the wood board and the feeding device can be prevented from sliding relatively, and automatic feeding of the wood board is realized. When the saw blade is clamped on the wood board, the wood board does not rebound immediately, but a short up-and-down vibration process is performed, and then the wood board rebound. When the wood plate vibrates upwards, the wood plate drives the first piston to move upwards, and at the moment, air in the first piston enters the second cylinder through the second one-way valve; when the wood plate returns downwards to the conveying device, the first piston moves downwards under the combined action of the downward elasticity of the pressure spring on the first piston, the gravity of the first piston rod and the gravity of the pressing piece, and outside air enters the first cylinder through the first one-way valve; when the first piston moves upward again, air in the first cylinder enters the second cylinder. The first cylinders charge air into the second cylinders at the same time, and the air pressure in the second cylinders is continuously increased, so that the second pistons move downwards, and the rebound prevention pieces are tightly pressed on the wood board along with the continuous increase of the air pressure in the second cylinders, so that the wood board is prevented from rebounding.

In the whole feeding process, the feeding device automatically conveys the wood board to the saw blade for cutting, and the worker does not need to participate, so that the hand of the worker can be prevented from being cut by the saw blade. When the saw blade is clamped on the wood board, the wood board firstly vibrates up and down, the wood board drives the first piston to move up and down, the first cylinder continuously charges air into the second cylinder, the rebound prevention piece is tightly pressed on the wood board to play a role in preventing the wood board from rebounding, and the compression device is directly pressed on the wood board, so that the rebound prevention device can play a role in preventing the wood board from rebounding all the time in the whole feeding process.

As a further refinement of the basic solution, the distance between adjacent pressing devices is preferably shorter than the length between the transported boards. The distance between adjacent closing device is shorter than the length of plank can guarantee that every plank upside has at least one closing device, and the plank is located the whole in-process on the material feeding unit and all is pressed under closing device promptly, so the whole transportation and the course of working of plank prevent that rebound structure can both play the effect that prevents the plank and bounce. When the wood board bounces, the rebound prevention structures act simultaneously, all the wood boards are pressed on the feeding device, and the rear wood board can be prevented from being pushed backwards by the front wood board, so that the compression effect of the compression devices is better than that of one compression device, and the rebound prevention effect is also better.

The second preferred scheme is used as a further improvement of the basic scheme, and further comprises a movable frame, wherein the movable frame is connected to the feeding device in a sliding way, a gear is arranged on the feeding device, a rack meshed with the gear is arranged at the lower end of the movable frame, and the feeding device drives the movable frame to move; the pressing device is fixed on the movable frame; the automatic return device comprises an inflator and a third air cylinder, the third air cylinder is provided with a fourth one-way valve, the inflator is connected with the third air cylinder, the lower end of the third air cylinder is provided with a third piston, and a third piston rod capable of jacking the movable frame is arranged below the third piston; the automatic return device is provided with a timing switch for opening and closing the automatic closing of the inflator and a deflation switch for opening the fourth one-way valve; the utility model discloses a saw blade, including frame, saw blade, frame, limiting plate, extension spring, the frame is close to saw blade one side and is provided with the stopper of opening the time switch, frame is close to saw blade one side is provided with the limiting plate, be equipped with the arch of opening the bleeder switch on the limiting plate, be connected with the extension spring between limiting plate and the removal frame.

When the saw blade works normally, the racks at the lower end of the movable frame are meshed with the gears on the feeding device, so that the feeding device can drive the movable frame to move forwards, the moving speed of the movable frame is the same as that of the wood board on the feeding device, so that the pressing device fixed on the movable frame can be always pressed on the wood board and move forwards along with the wood board, a plurality of pressing devices are not required to be arranged in the forming range of the movable frame, the pressing device can be ensured to be always positioned on the upper side of the wood board, and the pressing device always plays a role in preventing the wood board from rebounding when the wood board moves towards one side of the saw blade.

In a third preferred aspect, as a further improvement of the second preferred aspect, the compressing member is fixedly connected to the lower end of the first piston rod, and the lower surface of the compressing member is a plane. The lower surface is a plane, so that the contact area between the pressing piece and the wood board can be increased, the static friction force between the pressing piece and the wood board and the stress area of the wood board can be increased, the relative sliding between the wood board and the pressing piece can be prevented, and the deformation of the stress part of the wood board can be prevented.

In a fourth preferred aspect, as a further improvement of the first preferred aspect, the pressing member is rotatably connected to the lower end of the first piston rod, and the pressing member is a roller. The gyro wheel can rotate at first piston rod lower extreme, under material feeding unit's effect, even the gyro wheel is too big to the pressure of plank, and the plank also can continue the forward movement, so the gyro wheel can guarantee that the plank is not pressed to death, makes the plank can move forward under material feeding unit's effect.

In a fifth preferred embodiment, as a further improvement of the fourth preferred embodiment, the feeding device is a conveyor belt. The conveyer belt has increased the area of contact between plank and the material feeding unit, under the certain circumstances of pressure, the biggest static friction force between plank and the material feeding unit increases, so the plank is difficult to slide on the conveyer belt can guarantee that material feeding unit can transport the plank to saw sword one side, can strengthen automatic feeding's ability.

In a sixth preferred aspect, as a further improvement of the fourth or fifth preferred aspect, sealing rings are provided on the outer edges of the first piston and the second piston. The sealing rings can prevent air in the first cylinder and the second cylinder from leaking, and when the saw blade is clamped on the wood board, the first piston can be ensured to charge air in the first cylinder into the second cylinder; when the rebound prevention piece is tightly pressed on the wood board, the gas in the second cylinder leaks out, so that the compression effect of the rebound prevention piece is ensured.

In a seventh preferred embodiment, as a further improvement of the sixth preferred embodiment, the surface of the feeding device is provided with an anti-slip rubber layer. The anti-skid rubber can increase the maximum static friction force between the surface of the feeding device and the wood board, and can prevent the relative sliding between the wood board and the feeding device.

Drawings

The invention is described in further detail below with reference to the attached drawings and detailed description:

fig. 1 is a schematic structural view of embodiment 1;

FIG. 2 is a schematic view of the compressing apparatus of embodiment 1;

fig. 3 is a schematic view of the structure of the moving frame and the self-return device of embodiment 2.

Detailed Description

The reference numerals are: the device comprises a frame 1, a feeding device 11, a gear 12, a limiting block 13, a limiting groove 14, a first cylinder 2, a first piston 21, a first piston rod 22, a pressing piece 23, a first one-way valve 24, a pressure spring 25, a sealing ring 26, a second cylinder 3, a second piston 31, a second piston rod 32, a rebound prevention piece 33, a third one-way valve 34, a return tension spring 35, a third cylinder 4, a third piston 41, a third piston rod 42, a moving frame 5, an inflator 51, a rack 52, a timing switch 53 and a saw blade 6.

Example 1

Referring to fig. 1 and 2, a board processing device comprises a machine 1, a motor and a conveyor belt 11, wherein the motor is fixed on the machine frame 1, the conveyor belt 11 is made of anti-slip rubber, and the motor drives the conveyor belt 11. The device also comprises three pressing devices, the distance between every two adjacent pressing devices is shorter than the length of the processed wood board, the pressing devices are arranged on the upper side of the conveyor belt 11, and each pressing device comprises a plurality of pressing structures and rebound prevention structures; the compressing structure comprises a first cylinder 2, wherein the upper end of the first cylinder 2 is welded on the frame 1, a first one-way valve 24 for air inlet and a second one-way valve for air outlet are arranged on the side wall, close to the frame 1, of the first cylinder 2, a first piston 21 is arranged in the first cylinder 2 in a sliding manner, a pressure spring 25 which abuts against the upper end face of the first piston 21 is arranged in the first cylinder 2, a first piston rod 22 is fixed at the lower end of the first piston 21, and a compressing piece is connected at the lower end of the first piston rod 22; the rebound prevention structure comprises a second cylinder 3, the upper end of the second cylinder 3 is welded on the frame 1, a third one-way valve 34 for air outlet is arranged on the side wall of the second cylinder 3, which is close to the frame 1, a switch for opening and closing the third one-way valve is arranged on the outer wall of the second cylinder 3, a second piston 31 is connected in a sliding manner in the second cylinder 3, and sealing rings 26 are arranged on the outer edges of the first piston 21 and the second piston 31; a return tension spring 35 which is propped against the upper end surface of the second piston 31 is arranged in the second cylinder 3, a second piston rod 32 is fixed at the lower end of the second piston 31, and a rebound prevention piece 33 is connected at the lower end of the second piston rod 32; the second cylinder 3 is communicated with the second check valves of the three first cylinders 2, and the three first cylinders 2 are arranged in a delta shape.

When the saw blade is used, the motor is firstly turned on, the motor drives the conveyor belt 11 to move, a worker is located at one end, far away from the saw blade 6, of the conveyor belt 11, the wood plate is placed on the conveyor belt 11, the roller 23 is pressed on the wood plate under the action of the pressure spring 25, the roller 23 rolls on the lower side of the first piston rod 22, relative movement between the wood plate and the conveyor belt 11 is prevented, and the conveyor belt 11 drives the wood plate to be continuously close to the saw blade 6. When the saw blade 6 is clamped on the wood board, the wood board firstly vibrates up and down, and when the wood board vibrates up, the wood board drives the first piston 21 to move up, and at the moment, air in the first piston 21 enters the second cylinder 3 through the second one-way valve; when the wood plate returns downwards to the conveyor belt 11, the first piston 21 moves downwards under the combined action of the downward elasticity of the pressure spring 25 on the first piston 21, the gravity of the first piston rod 22 and the gravity of the roller 23, and the outside air enters the first cylinder 2 through the first one-way valve 24; when the first piston 21 moves upward again, the air in the first cylinder 2 enters the second cylinder 3 again. The above steps are repeated, the three first cylinders 2 simultaneously charge air into the second cylinders 3, and the air pressure in the second cylinders 3 is continuously increased, so that the second pistons 31 move downwards, and the rebound prevention pieces 33 are tightly pressed on the wood board along with the continuous increase of the air pressure in the second cylinders 3, so that the wood board is prevented from rebounding. The wood board does not rebound any more, the worker turns on the switch on the outer wall of the second cylinder 3, air in the second cylinder 3 leaks out from the third check valve 34, the air pressure in the second cylinder 3 is reduced, the pressure of the rebound member 33 is prevented from being reduced, and the rebound member 33 is prevented from being suspended on the upper side of the wood board under the action of the return tension spring 35.

Example 2

As shown in fig. 3, the embodiment 1 is different in that the movable frame 5 is further included, the pressing means includes three pressing structures and one rebound prevention structure, the pressing member 23 is a rectangular cube welded to the lower end of the first piston rod 22, and the first cylinder 2 and the second cylinder 3 are welded to the movable frame 5. The feeding device 11 is composed of a rotating shaft, an anti-slip rubber layer is glued on the surface of the rotating shaft 11, two ends of the rotating shaft 11 are fixed in fixing holes on the frame 1, gears 12 are mounted at two ends of the rotating shaft 11, the gears 12 are meshed with a transmission chain, and a motor drives the transmission chain to rotate. The outer side of the frame fixing hole is provided with a limit groove 14, the bottom of the movable frame 5 is embedded into the limit groove 14, and the movable frame 5 can slide on the frame 1; the lower part of the moving frame 5 is provided with a rack 52 engaged with the gear 12, and the length of the rack 52 is longer than the distance between the adjacent rotating shafts 11. The movable frame 5 is also fixedly provided with an automatic return device, the automatic return device comprises an inflator 51 and a third cylinder 4, the left side and the right side of the movable frame 5 are respectively provided with the third cylinder 4, the left side of the movable frame 5 is fixedly provided with the inflator 51, the third cylinder 4 is internally provided with a fourth one-way valve for air outlet, the inflator is connected with two third cylinders, the lower end of each third cylinder is provided with a third piston, a third piston rod is arranged below each third piston, and the third piston rod 42 is propped against the frame 1. A limiting block 13 is arranged on one side, close to the saw blade 6, of the frame 1, a limiting plate is arranged on one side, far away from the saw blade, of the frame 1, a protrusion is arranged on the limiting plate, and a reset tension spring is connected between the limiting plate and the movable frame 5. The side of the inflator 51 facing the saw blade is provided with a timing switch 53 for opening and closing the automatic closing of the inflator, the time for automatically closing the timing switch 53 is set to be the time for returning the movable frame 5 to the original position, and the limiting block 13 opens the timing switch 53; the outer side wall of the third cylinder 4 facing one side of the limiting plate is provided with a release switch for opening the fourth one-way valve, and the bulge opens the release switch.

Initially, the moving frame 5 is located at the left side of the limiting plate. When the wood plate pressing device is used, the motor is turned on, the motor drives the transmission chain, the transmission chain drives all the rotating shafts 11 to rotate, the wood plate is placed on the rotating shafts 11, the pressing piece 23 is pressed on the wood plate, the rotating shafts 11 enable the movable frame 5 to move towards the saw blade 6 at the same speed as the wood plate, and the pressing piece 23 is always pressed on the wood plate. When the movable frame 5 approaches the saw blade 6, the limiting block 13 opens the timing switch 53, the inflator 51 inflates the third cylinder 4, the air pressure in the third cylinder 4 increases, the third piston 41 moves downwards relative to the third cylinder 4, but the third piston rod 42 can not move downwards because the third piston rod 42 abuts on the frame, the third cylinder 4 is jacked up, and the movable frame 5 is jacked up because the third cylinder 4 is fixed on the movable frame 5, the rack 52 is separated from the gear 12, and the movable frame 5 is slidingly connected with the frame 1, so that the reset spring returns the movable frame 5 to the initial position. Since the time for the automatic closing preset by the timing switch 53 is the time for the movable frame 5 to return to the initial position, the inflator 51 stops inflating the third cylinder 4 when the movable frame 5 returns to the initial position. The movable frame 5 returns to the initial position, the bulge opens the air leakage switch, air in the third air cylinder 4 leaks from the fourth one-way valve, air pressure in the third air cylinder 4 is reduced, the movable frame 5 descends, the rack 52 is contacted with the gear 12 again, and the feeding process is repeated.

While only the preferred embodiments of the present invention have been described above, it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention, and these should also be considered as the scope of the invention, which does not affect the effect of the practice of the invention and the utility of the patent. The technology, shape, and construction parts omitted herein are all known in the art.

Claims

1. The utility model provides a plank processingequipment, includes frame (1), motor, material feeding unit (11) are fixed on frame (1), motor drive material feeding unit (11), its characterized in that: the device also comprises a plurality of compressing devices, wherein the compressing devices are arranged on the upper side of the feeding device (11) and comprise a plurality of compressing structures and rebound preventing structures; the compression structure comprises a first air cylinder (2), a first one-way valve (24) and a second one-way valve are arranged on the first air cylinder (2), a first piston (21) is arranged in the first air cylinder (2) in a sliding mode, a pressure spring which abuts against the upper end face of the first piston (21) is arranged in the first air cylinder (2), a first piston rod (22) is fixed at the lower end of the first piston (21), and a compression piece is connected at the lower end of the first piston rod (22); the rebound prevention structure comprises a second air cylinder (3), a third one-way valve (34) is arranged on the second air cylinder (3), a switch for opening and closing the third one-way valve is arranged on the rebound prevention structure, a second piston (31) is connected in a sliding manner in the second air cylinder (3), a second piston rod (32) is fixed at the lower end of the second piston (31), and a rebound prevention piece (33) is connected at the lower end of the second piston rod;

when the saw is used, the motor is firstly turned on, the motor drives the conveyor belt (11) to move, a worker is positioned at one end of the conveyor belt (11) far away from the saw blade (6), a wood board is placed on the conveyor belt (11), the roller (23) is pressed on the wood board under the action of the pressure spring (25), the roller (23) rolls on the lower side of the first piston rod (22), relative movement between the wood board and the conveyor belt (11) is prevented, and the conveyor belt (11) drives the wood board to be continuously close to the saw blade (6); when the saw blade (6) is clamped on the wood board, the wood board firstly vibrates up and down, and when the wood board vibrates up, the wood board drives the first piston (21) to move up, and at the moment, air in the first piston (21) enters the second cylinder (3) through the second one-way valve; when the wood plate returns downwards to the conveyor belt (11), the first piston (21) moves downwards under the combined action of the downward elasticity of the pressure spring (25) on the first piston (21), the gravity of the first piston rod (22) and the gravity of the roller (23), and the outside air enters the first cylinder (2) through the first one-way valve (24); when the first piston (21) moves upwards again, air in the first cylinder (2) enters the second cylinder (3) again; repeating the steps, the three first air cylinders (2) simultaneously charge air into the second air cylinder (3), and the air pressure in the second air cylinder (3) is continuously increased, so that the second piston (31) moves downwards, and the rebound prevention piece (33) is tightly pressed on the wood board along with the continuous increase of the air pressure in the second air cylinder (3) to prevent the wood board from rebounding; the plank no longer takes place to bounce, and the workman opens the switch on the outer wall of second cylinder (3), and the air in second cylinder (3) spills in third check valve (34), and the atmospheric pressure reduces in second cylinder (3), prevents that the pressure of rebound piece (33) from reducing, under return extension spring (35) effect, prevents that rebound piece (33) from hanging in plank upside.

2. A board processing apparatus according to claim 1, wherein: the distance between adjacent pressing devices is shorter than the length of the transported wood board.

3. A board processing apparatus according to claim 1, wherein: the automatic feeding device is characterized by further comprising a moving frame (5), wherein the moving frame (5) is connected to the feeding device in a sliding manner, a gear (12) is arranged on the feeding device (11), a rack (52) meshed with the gear is arranged at the lower end of the moving frame (5), and the feeding device (11) drives the moving frame (5) to move; the pressing device is fixed on the movable frame (5); the automatic return device is arranged on the movable frame (5) and comprises an inflator (51) and a third air cylinder (4), the third air cylinder (4) is provided with a fourth one-way valve, the inflator (51) is connected with the third air cylinder (4), a third piston (41) is arranged at the lower end of the third air cylinder (4), and a third piston rod (42) capable of jacking the movable frame (5) is arranged below the third piston (41); the automatic return device is provided with a timing switch (53) for opening and closing the automatic closing of the inflator and a release switch for opening the fourth one-way valve; a limiting block (13) for opening the timing switch is arranged on one side, close to the saw blade (6), of the frame, a limiting plate is arranged on one side, far away from the saw blade, of the frame, a bulge for opening the air leakage switch is arranged on the limiting plate, and a tension spring is connected between the limiting plate and the movable frame.

4. A board processing apparatus according to claim 3, wherein: the compressing piece (23) is fixedly connected to the lower end of the first piston rod (22), and the lower surface of the compressing piece (23) is a plane.

5. A board processing apparatus according to claim 2, wherein: the compressing piece (23) is rotatably connected to the lower end of the first piston rod (22), and the compressing piece (23) is a roller.

6. A board processing apparatus according to claim 5, wherein: the feeding device (11) is a conveyor belt.

7. A board processing apparatus according to claim 5 or 6, wherein: and sealing rings (26) are arranged at the outer edges of the first piston (21) and the second piston (31).

8. A board processing apparatus according to claim 7, wherein: an anti-skid rubber layer is arranged on the surface of the feeding device (11).