Disclosure of Invention
The object of the present invention is to provide a device for cutting leathers that overcomes the above-mentioned drawbacks of the prior art, thus improving the practicality of the plant.
The technical scheme adopted by the invention for solving the technical problems is as follows: a device for cutting leather comprises a machine body, wherein a first motor is arranged in the machine body, a first rotating shaft is arranged in the first motor in a power connection mode in the vertical direction, a first ratchet wheel is fixedly arranged below the first rotating shaft, a second rotating shaft extending downwards is fixedly arranged below the first ratchet wheel, a first rotating cavity is arranged below the first ratchet wheel, a first belt wheel is arranged in the first rotating cavity and fixedly connected with the second rotating shaft, a first driving belt is arranged on the first belt wheel in a sliding mode, a second belt wheel is arranged on the right side of the first belt wheel and in transmission connection with the first belt wheel through the first driving belt, a first moving rod extending downwards is arranged on the left side below the second rotating shaft in a sliding mode, a cutting cavity is arranged below the first moving rod, a lower pressing plate is arranged in the cutting cavity and fixedly connected with the first moving rod, a second moving rod extending upwards is fixedly arranged above the left side of the lower pressing plate and is connected with the upper wall surface of the cutting cavity in a sliding manner, a knife inlet is arranged at the central position of the lower wall surface of the cutting cavity, a second ratchet wheel is fixedly arranged above the first rotating shaft, a third rotating shaft extending upwards is fixedly arranged above the second ratchet wheel, a second rotating cavity is arranged above the third rotating shaft, a third belt wheel is arranged in the second rotating cavity and is fixedly connected with the third rotating shaft, a second driving belt is slidably arranged on the third belt wheel, a fourth belt wheel is arranged on the right side of the third belt wheel and is in transmission connection with the third belt wheel through the second driving belt, a fourth rotating shaft extending downwards is fixedly arranged at the central position of the fourth belt wheel, a first working cavity is arranged below the fourth rotating shaft, and a first helical gear is arranged in the first working cavity, the first helical gear is fixedly connected with the fourth rotating shaft, a second helical gear is meshed behind the first helical gear, and a fifth rotating shaft extending backwards is fixedly arranged at the center of the second helical gear.
Furthermore, a third rotating cavity is arranged behind the fifth rotating shaft, a fifth belt wheel is arranged in the third rotating cavity, the fifth belt wheel is fixedly connected with the fifth rotating shaft, a third driving belt is arranged on the fifth belt wheel in a sliding mode, a sixth belt wheel is arranged below the fifth belt wheel, and the sixth belt wheel is in transmission connection with the fifth belt wheel through the third driving belt.
Furthermore, a sixth rotating shaft extending rightwards is fixedly arranged at the center of the sixth belt wheel, a moving pin extending downwards is slidably arranged on the left side of the sixth rotating shaft, a first moving cavity is arranged below the moving pin and communicated with the cutting cavity, a first moving block is arranged in the first moving cavity and fixedly connected with the moving pin, limiting pins are fixedly arranged on the left side and the right side of the first moving block, and the limiting pins are slidably connected with the left wall surface and the right wall surface of the first moving cavity.
Furthermore, a second motor is arranged inside the first moving block, a spline shaft extending downwards is connected and arranged below the second motor in a power mode, a seventh rotating shaft extending downwards is connected and arranged below the spline shaft in a spline mode, a second moving block is arranged at the upper end of the seventh rotating shaft in a sliding mode, a third moving rod extending upwards is fixedly arranged above the second moving block, a first magnet is fixedly arranged at the upper end of the third moving rod, and a second magnet is arranged above the first magnet.
Further, a spring is arranged below the second moving block, a second moving cavity is arranged below the seventh rotating shaft, a third moving block is arranged inside the second moving cavity, a second working cavity is arranged inside the third moving block, a third bevel gear is arranged inside the second working cavity, the third bevel gear is fixedly connected with the seventh rotating shaft, a fourth bevel gear is meshed on the left side of the third bevel gear, an eighth rotating shaft extending leftwards is fixedly arranged at the center of the fourth bevel gear, and a cutting knife is fixedly arranged on the left side of the eighth rotating shaft.
The leather cutting device has the beneficial effects that the structure is simple, the leather can be automatically cut, the cutting integrity can be ensured to the maximum extent, and the error of cutting dislocation is reduced.
Detailed Description
The invention will now be described in detail with reference to fig. 1-3, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
With reference to fig. 1-3, the device for cutting leather comprises a machine body 10, a first motor 19 is arranged inside the machine body 10, a first rotating shaft 20 is arranged in the first motor 19 in a power connection manner in the vertical direction, a first ratchet 18 is fixedly arranged below the first rotating shaft 20, a second rotating shaft 15 extending downwards is fixedly arranged below the first ratchet 18, a first rotating cavity 31 is arranged below the first ratchet 18, a first belt pulley 16 is arranged inside the first rotating cavity 31, the first belt pulley 16 is fixedly connected with the second rotating shaft 15, a first driving belt 17 is slidably arranged on the first belt pulley 16, a second belt pulley 32 is arranged on the right side of the first belt pulley 16, the second belt pulley 32 is in a transmission connection with the first belt pulley 16 through the first driving belt 17, a first moving rod 13 extending downwards is slidably arranged on the left side below the second rotating shaft 15, a cutting cavity 38 is arranged below the first moving rod 13, a lower pressing plate 11 is arranged inside the cutting cavity 38, the lower pressing plate 11 is fixedly connected with the first moving rod 13, a second moving rod 14 extending upwards is fixedly arranged above the left side of the lower pressing plate 11, the second moving rod 14 is in sliding connection with the upper wall surface of the cutting cavity 38, an incision 37 is arranged at the central position of the lower wall surface of the cutting cavity 38, a second ratchet 21 is fixedly arranged above the first rotating shaft 20, a third rotating shaft 23 extending upwards is fixedly arranged above the second ratchet 21, a second rotating cavity 24 is arranged above the third rotating shaft 23, a third belt wheel 22 is arranged inside the second rotating cavity 24, the third belt wheel 22 is fixedly connected with the third rotating shaft 23, a second transmission belt 27 is arranged on the third belt wheel 22 in a sliding manner, a fourth belt wheel 25 is arranged on the right side of the third belt wheel 22, and the fourth belt wheel 25 is in transmission connection with the third belt wheel 22 through the second transmission belt 27, a fourth rotating shaft 26 extending downwards is fixedly arranged at the center of the fourth belt pulley 25, a first working cavity 30 is arranged below the fourth rotating shaft 26, a first helical gear 28 is arranged inside the first working cavity 30, the first helical gear 28 is fixedly connected with the fourth rotating shaft 26, a second helical gear 29 is meshed with the rear of the first helical gear 28, and a fifth rotating shaft 40 extending backwards is fixedly arranged at the center of the second helical gear 29.
Advantageously, a third rotating cavity 42 is provided behind the fifth rotating shaft 40, a fifth pulley 41 is provided inside the third rotating cavity 42, the fifth pulley 41 is fixedly connected with the fifth rotating shaft 40, a third transmission belt 12 is slidably provided on the fifth pulley 41, a sixth pulley 43 is provided below the fifth pulley 41, and the sixth pulley 43 is in transmission connection with the fifth pulley 41 through the third transmission belt 12.
Beneficially, a sixth rotating shaft 33 extending rightward is fixedly arranged at the center of the sixth pulley 43, a moving pin 35 extending downward is slidably arranged on the left side of the sixth rotating shaft 33, a first moving cavity 59 is arranged below the moving pin 35, the first moving cavity 59 is communicated with the cutting cavity 38, a first moving block 36 is arranged inside the first moving cavity 59, the first moving block 36 is fixedly connected with the moving pin 35, limit pins 39 are fixedly arranged on the left and right sides of the first moving block 36, and the limit pins 39 are slidably connected with the left and right wall surfaces of the first moving cavity 59.
Beneficially, a second motor 44 is disposed inside the first moving block 36, a spline shaft 58 extending downward is disposed below the second motor 44 in a power connection manner, a seventh rotating shaft 57 extending downward is disposed below the spline shaft 58 in a spline connection manner, a second moving block 48 is slidably disposed at an upper end of the seventh rotating shaft 57, a third moving rod 47 extending upward is fixedly disposed above the second moving block 48, a first magnet 46 is fixedly disposed at an upper end of the third moving rod 47, and a second magnet 45 is disposed above the first magnet 46.
Beneficially, a spring 51 is arranged below the second moving block 48, a second moving cavity 60 is arranged below the seventh rotating shaft 57, a third moving block 55 is arranged inside the second moving cavity 60, a second working cavity 54 is arranged inside the third moving block 55, a third bevel gear 56 is arranged inside the second working cavity 54, the third bevel gear 56 is fixedly connected with the seventh rotating shaft 57, a fourth bevel gear 53 is engaged with the left side of the third bevel gear 56, an eighth rotating shaft 52 extending leftward is fixedly arranged at the center of the fourth bevel gear 53, and a cutting knife 49 is fixedly arranged at the left side of the eighth rotating shaft 52.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
Sequence of mechanical actions of the whole device:
1. when the leather cutting machine is static, the lower pressing plate 11 is positioned at the top, the first moving block 36 is positioned at the last position in the first moving cavity 59, and the cutting knife 49 is positioned at the top, when the leather cutting machine starts to work, leather is spread on the lower wall surface of the cutting cavity 38, then, the first motor 19 is started to rotate positively, the first motor 19 rotates positively to drive the first rotating shaft 20 to rotate positively, the first rotating shaft 20 rotates positively to drive the first ratchet wheel 18 to rotate, the first ratchet wheel 18 drives the second rotating shaft 15 to rotate, and the second rotating shaft 15 drives the first belt wheel 16 to rotate;
2. meanwhile, the second rotating shaft 15 drives the first moving rod 13 to reciprocate up and down, the first moving rod 13 moves down first, the first moving rod 13 moves down to drive the lower pressing plate 11 to move down, the first belt pulley 16 rotates to drive the second belt pulley 32 to rotate, the lower pressing plate 11 is arranged in the cutting cavity 38 in a bilateral symmetry manner, the second belt pulley 32 rotates to drive the lower pressing plate 11 on the right side to move down, the lower pressing plate 11 moves down to fix the leather on the lower wall surface of the cutting cavity 38, then the second motor 44 is started, the second motor 44 rotates to drive the spline shaft 58 to rotate, the spline shaft 58 drives the seventh rotating shaft 57 to rotate, and the seventh rotating shaft 57 drives the third bevel gear 56 to rotate;
3. the third bevel gear 56 drives the fourth bevel gear 53 to rotate, the fourth bevel gear 53 drives the eighth rotating shaft 52 to rotate, the eighth rotating shaft 52 drives the cutting knife 49 to rotate, then the second magnet 45 is electrified, the second magnet 45 is electrified to enable the second magnet 45 to generate magnetic force, the magnetic force generated by the second magnet 45 pushes the first magnet 46 to move downwards, the first magnet 46 moves downwards to drive the third moving rod 47 to move downwards, the third moving rod 47 moves downwards to drive the second moving block 48 to move downwards, the second moving block 48 drives the spring 51 to compress downwards, the second moving block 48 drives the seventh rotating shaft 57 to move downwards, the seventh rotating shaft 57 drives the third moving block 55 to move downwards, the third moving block 55 drives the cutting knife 49 to move downwards, and the cutting knife 49 can cut leather;
4. then the first motor 19 is started to rotate reversely, the first motor 19 rotates reversely to drive the first rotating shaft 20 to rotate reversely, the first rotating shaft 20 rotates reversely to drive the second ratchet wheel 21 to rotate reversely, the second ratchet wheel 21 rotates reversely to drive the third rotating shaft 23 to rotate, the third rotating shaft 23 rotates to drive the third belt wheel 22 to rotate, the third belt wheel 22 rotates to drive the fourth belt wheel 25 to rotate, the fourth belt wheel 25 rotates to drive the fourth rotating shaft 26 to rotate, the fourth rotating shaft 26 rotates to drive the first bevel gear 28 to rotate, and the first bevel gear 28 rotates to drive the second bevel gear 29 to rotate;
5. the second bevel gear 29 drives the fifth rotating shaft 40 to rotate, the fifth rotating shaft 40 drives the fifth belt pulley 41 to rotate, the fifth belt pulley 41 drives the sixth belt pulley 43 to rotate, the sixth belt pulley 43 drives the sixth rotating shaft 33 to rotate, the sixth rotating shaft 33 drives the moving pin 35 to reciprocate back and forth, the moving pin 35 moves forward first, the moving pin 35 moves forward to drive the first moving block 36 to move forward, the first moving block 36 moves forward to drive the cutting knife 49 to move forward, and therefore the function of moving the cutting knife 49 back and forth to cut leather is achieved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.