CN111408799B

CN111408799B - Metal plate cutting device capable of improving energy utilization rate

Info

Publication number: CN111408799B
Application number: CN202010427198.7A
Authority: CN
Inventors: 商怡学
Original assignee: Anhui Chijiahan Household Handicraft Co ltd
Current assignee: ANHUI CHIJIAHAN HOUSEHOLD HANDICRAFT Co.,Ltd.
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-12-04
Anticipated expiration: 2040-05-19
Also published as: CN111408799A; GB202011642D0

Abstract

The invention discloses a metal plate cutting device capable of improving the energy utilization rate, which comprises a box body, wherein an upper conveying cavity with an upward opening is arranged in the box body, a lower conveying cavity is connected to the lower side of the upper conveying cavity, a single-phase motor for conveying is fixedly arranged in the front wall on the right side of the lower conveying cavity, a driving shaft for conveying extending into the lower conveying cavity is fixedly arranged on an output shaft on the rear side of the single-phase motor for conveying, and a right belt wheel is fixedly arranged on the driving shaft for conveying.

Description

Metal plate cutting device capable of improving energy utilization rate

Technical Field

The invention relates to the field of metal plate cutting, in particular to a metal plate cutting device for improving the energy utilization rate.

Background

With the progress of the times, a metal plate, which is a plate-like material composed of one or more metals and other materials and can be used for interior decoration and building construction, is widely used in the lives of residents as a material.

After the metal sheet is produced, the metal sheet can not be applied to all occasions completely, often need cut, there is manual operation also to have device automatic operation to the cutting mode of metal sheet at present, the consuming time and consuming power of manpower cutting, work efficiency is low, the device cutting can not necessarily cut the metal sheet of all thicknesses and compress tightly, and the device cutting can resume to the normal position after the cutting piece has cut, it does not do the idle work to resume to the in-process cutting piece rotation and the removal of normal position, energy utilization is reduced.

Disclosure of Invention

The technical problem is as follows: the manpower is used for cutting the metal plate, the time and the labor are consumed, the cutting aiming range of the device is small, and the energy utilization rate is to be improved.

The metal plate cutting device for improving the energy utilization rate comprises a box body, an upper conveying cavity with an upward opening is arranged in the box body, a lower conveying cavity is connected to the lower side of the upper conveying cavity, a single-phase motor for conveying is fixedly arranged in the front wall on the right side of the lower conveying cavity, a driving shaft for conveying extending into the lower conveying cavity is fixedly arranged on an output shaft on the rear side of the single-phase motor for conveying, a right belt wheel is fixedly arranged on the driving shaft for conveying, a left belt wheel shaft is rotatably connected to the front wall on the left side of the lower conveying cavity, a left belt wheel is fixedly arranged on the left belt wheel shaft, a lower belt is connected between the left belt wheel and the right belt wheel, a metal plate can be placed on the lower belt, and the single-phase motor for conveying can start to drive the lower belt to convey the metal plate rightwards, the box body is internally provided with sliding cavities which are symmetrical from front to back by taking the upper conveying cavity as a center, a sliding block is connected in the sliding cavities in a sliding manner, a jacking spring is connected between the upper side of the sliding block and the top wall of the sliding cavity, an opening is connected between the sliding cavity and the upper conveying cavity, the sliding block at the front side is rotatably connected with a right moving shaft which is rotatably connected to the sliding block at the rear side, a right moving belt wheel which is fixed on the right moving shaft is arranged in the upper conveying cavity, a left moving rotating shaft which is positioned at the upper side of the left belt wheel shaft is connected in the front wall of the upper conveying cavity in a sliding manner, a left moving belt wheel is fixedly arranged on the left moving rotating shaft, an upper belt is connected between the left moving belt wheel and the right moving belt wheel, and the sliding block which is slidably connected in the sliding cavities can slide to a reasonable position according to the thickness of the metal plate, the metal plate conveying device is characterized in that an engaging cavity located on the rear side of the upper conveying cavity is formed in the box body, a transmission device capable of driving the right moving belt wheel to rotate through the single-phase motor for conveying so that the upper belt can drive the metal plate to move rightwards is arranged in the engaging cavity, a cutting device located on the lower side of the upper conveying cavity and located on the right side of the lower conveying cavity is arranged in the box body, and the cutting device can cut the metal plate.

The transmission device comprises a driving shaft which is fixedly arranged on the left side of the right belt wheel and extends into the meshing cavity, a driving bevel gear is fixedly arranged on the left side of the driving shaft, a transmission shaft is rotatably connected to the bottom wall of the meshing cavity, a transmission bevel gear meshed with the driving bevel gear is fixedly arranged on the transmission shaft, a shaft sliding cavity is arranged in the transmission shaft, a spline shaft is slidably connected in the shaft sliding cavity, the spline shaft is in splined connection with the transmission shaft, an output bevel gear is fixedly arranged on the upper side of the spline shaft, an in-shaft jacking spring used for jacking the spline shaft upwards is connected between the lower side of the spline shaft and the bottom wall of the shaft sliding cavity, and a driven bevel gear meshed with the output bevel gear is fixedly arranged on the.

Wherein, the cutting device comprises a motor moving cavity arranged in the box body, the sliding connection in the motor moving cavity is provided with an one-way motor for cutting, a driving shaft for cutting is fixedly arranged on an output shaft on the left side of the one-way motor for cutting, the box body is internally provided with a rack moving cavity positioned on the left side of the motor moving cavity, the rack moving cavity is internally and vertically connected with an internal rack plate in a sliding way, the driving shaft for cutting stretches into the internal rack plate and is connected with a gear which can be meshed with a meshing rack of the internal rack plate, the gear for meshing rack is internally provided with a clutch device which can reduce the damage to the started one-way motor for cutting when the gear for meshing rack cannot rotate, the box body is internally provided with an accelerating cavity positioned on the left side of the rack moving cavity, the accelerating cavity is internally and longitudinally, the left side of the gear for the meshing rack is fixedly provided with an intermediate shaft which extends into the accelerating cavity and is fixed on the right side of the accelerating base gear, a blade moving cavity which is positioned on the left side of the accelerating cavity is arranged in the box body, the left wall of the blade moving cavity is connected with an accelerating shaft in a sliding manner, a rotating blade base which is fixed on the accelerating shaft is arranged in the blade moving cavity, cutting blades for cutting the metal plate are fixedly distributed on the rotating blade base in an annular manner, the accelerating shaft extends into the accelerating cavity and is rotatably connected on the left side of the accelerating base gear, the left side of the accelerating base gear is rotatably connected with a moving plate, the right side of the moving plate is rotatably connected with an idler shaft in an annular manner, the right side of the idler shaft is fixedly connected with an idler which is meshed with the inner teeth of the accelerating, the accelerating base gear drives the driven gear to rotate through the idler gear, so that the rotating speed of the accelerating shaft is higher than that of the driving shaft for cutting, and shaft moving cavities for moving shafts are respectively communicated between the blade moving cavity and the accelerating cavity, between the accelerating cavity and the rack moving cavity and between the rack moving cavity and the motor moving cavity.

The clutch device comprises an arc block moving cavity which is annularly distributed in the gear for the meshing rack, an arc block which can contact the driving shaft for cutting is connected in the arc block moving cavity in a sliding mode, an arc jacking spring is connected between the arc block and the inner wall of the arc block moving cavity, spline cavities are annularly distributed in the gear for the meshing rack, splines which can stretch into the spline cavities are fixedly arranged on the driving shaft for cutting, and the splines enable the driving shaft for cutting to be connected with the gear for the meshing rack in a spline mode.

Beneficially, the rear side of the rack moving cavity is connected with a plate up-and-down moving cavity with a backward opening, an up-and-down moving connecting rod fixed on the rear side of the internal rack plate is slidably connected in the plate up-and-down moving cavity, a handle for facilitating manual operation is fixedly arranged on one side, extending out of the box body, of the up-and-down moving connecting rod, an upper sensing plate is fixedly arranged in the top wall of the plate up-and-down moving cavity, and a lower sensing plate is fixedly arranged in the bottom wall of the plate.

The invention has the beneficial effects that: compared with the traditional metal plate cutting device or mode, the metal plate cutting device can be placed in metal plates with different thicknesses for cutting and can also be used for pressing the metal plates tightly, in addition, the cutting blade for cutting is not required to be restored to the original position after cutting, so that the energy utilization rate is doubled, the rotating speed of the cutting blade is faster than the initial output rotating speed of a motor through the transmission ratio of the gear, and the cutting quality is improved.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

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

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic cross-sectional view taken in the direction "B-B" of FIG. 2;

FIG. 5 is an enlarged schematic view at "C" of FIG. 2;

fig. 6 is a left side sectional view of the up-and-down moving chamber of the plate of fig. 2.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 6, for the sake of convenience of description, the following orientations are now defined: 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.

The invention relates to a metal plate cutting device for improving energy utilization rate, which is further explained by combining the attached drawings of the invention:

the invention relates to a metal plate cutting device for improving energy utilization rate, which comprises a box body 11, wherein an upper conveying cavity 46 with an upward opening is arranged in the box body 11, a lower conveying cavity 58 is connected to the lower side of the upper conveying cavity 46, a single-phase motor 36 for conveying is fixedly arranged in the front wall on the right side of the lower conveying cavity 58, a driving shaft 37 for conveying extending into the lower conveying cavity 58 is fixedly arranged on the output shaft on the rear side of the single-phase motor 36 for conveying, a right belt wheel 59 is fixedly arranged on the driving shaft 37 for conveying, a left belt wheel shaft 61 is rotatably connected to the front wall on the left side of the lower conveying cavity 58, a left belt wheel 60 is fixedly arranged on the left belt wheel shaft 61, a lower belt 62 is connected between the left belt wheel 60 and the right belt wheel 59, a metal plate 12 can be placed on the lower belt 62, the single-phase motor 36 for conveying can drive the lower belt 62 to convey the, the box body 11 is internally provided with sliding cavities 51 which are symmetrical front and back by taking the upper conveying cavity 46 as a center, the sliding cavities 51 are internally and slidably connected with sliding blocks 50, a jacking spring 49 is connected between the upper side of each sliding block 50 and the top wall of each sliding cavity 51, an opening 48 is connected between each sliding cavity 51 and the upper conveying cavity 46, the sliding block 50 at the front side is rotatably connected with a right moving shaft 63 rotatably connected to the sliding block 50 at the rear side, a right moving belt pulley 64 fixed on the right moving shaft 63 is arranged in the upper conveying cavity 46, a left moving rotating shaft 13 positioned at the upper side of the left belt pulley shaft 61 is slidably connected to the front wall of the upper conveying cavity 46, a left moving belt pulley 14 is fixedly arranged on the left moving rotating shaft 13, an upper belt 15 is connected between the left moving belt pulley 14 and the right moving belt pulley 64, and the sliding block 50 slidably connected in the sliding cavities 51 can slide to a reasonable position according to the thickness of the metal plate 12 so as to enable the The belt 15 is tightly attached to the upper side surface of the metal plate 12, an engagement cavity 45 located at the rear side of the upper conveying cavity 46 is arranged in the box body 11, a transmission device 101 capable of driving the metal plate 12 to move rightwards by driving the right moving belt pulley 64 to rotate through the single-phase motor 36 for conveying is arranged in the engagement cavity 45, a cutting device 102 located at the lower side of the upper conveying cavity 46 and located at the right side of the lower conveying cavity 58 is arranged in the box body 11, and the cutting device 102 can cut the metal plate 12.

According to the embodiment, the transmission device 101 is described in detail below, the transmission device 101 includes a driving shaft 38 fixed to the left side of the right pulley 59 and extending into the engaging cavity 45, a driving bevel gear 39 is fixed to the left side of the driving shaft 38, a driving shaft 41 is rotatably connected to the bottom wall of the engaging cavity 45, a driving bevel gear 43 engaged with the driving bevel gear 39 is fixed to the driving shaft 41, a shaft sliding cavity 40 is formed in the driving shaft 41, a spline shaft 42 is slidably connected to the shaft sliding cavity 40, the spline shaft 42 is spline-connected to the driving shaft 41, an output bevel gear 44 is fixed to the upper side of the spline shaft 42, an inner shaft urging spring 70 for urging the spline shaft 42 upward is connected between the lower side of the spline shaft 42 and the bottom wall of the shaft sliding cavity 40, a driven bevel gear 47 engaged with the output bevel gear 44 is fixed to the right moving shaft 63, when the single-phase motor 36 for conveying is started, the driving shaft 37 for conveying can be driven to rotate to drive the right belt wheel 59 to rotate, namely, the driving shaft 38 is rotated to rotate the driving shaft 41 by the engagement of the driving bevel gear 39 and the driving bevel gear 43 to rotate the driving shaft 41, the right moving shaft 63 is rotated by the engagement of the output bevel gear 44 and the driven bevel gear 47, the right moving shaft 63 is rotated to rotate the left moving pulley 14 by the upper belt 15 to allow the upper belt 15 to move the metal plate 12 to the right, when the metal plate 12 is inserted between the upper belt 15 and the lower belt 62, the right moving pulley 64 moves upward to move the slide block 50 upward by the right moving shaft 63 to compress the pressing spring 49, at the same time, the contracted shaft inner top pressure spring 70 expands to drive the spline shaft 42 to move upwards so that the output bevel gear 44 is still meshed and connected with the driven bevel gear 47.

According to the embodiment, the cutting device 102 is described in detail below, the cutting device 102 includes a motor moving cavity 29 disposed in the case 11, a one-way motor 30 for cutting is slidably connected in the motor moving cavity 29, a driving shaft 31 for cutting is fixedly disposed on an output shaft on the left side of the one-way motor 30 for cutting, a rack moving cavity 28 disposed on the left side of the motor moving cavity 29 is disposed in the case 11, an inner rack plate 33 is slidably connected in the rack moving cavity 28 up and down, the driving shaft 31 for cutting extends into the inner rack plate 33, a gear 27 for engaging with the inner rack plate 33 is connected to the driving shaft 31 for cutting, a clutch device 103 capable of reducing damage to the one-way motor 30 for cutting that is activated when the gear 27 for engaging with the rack plate 27 cannot rotate is disposed in the gear 27 for engaging with the rack plate, be equipped with in the box 11 and be located the left chamber 25 with higher speed in rack removal chamber 28, sliding connection has acceleration base gear 26 around in the chamber 25 with higher speed, meshing rack has set firmly on the left of gear 27 and stretches into in the chamber 25 with higher speed and be fixed in the intermediate shaft 72 on acceleration base gear 26 right side with higher speed, be equipped with in the box 11 and be located the left blade removal chamber 17 in chamber 25 with higher speed, sliding connection has acceleration shaft 20 in the blade removal chamber 17 left wall, be equipped with in the blade removal chamber 17 and be fixed in rotating blade base 19 on acceleration shaft 20, it sets firmly to be used for cutting the cutting blade 18 of metal sheet 12 to be the annular distribution on rotating blade base 19, acceleration shaft 20 stretches into chamber 25 with higher speed and rotate connect in acceleration base gear 26 left side, acceleration base gear 26 left side is rotated and is connected with movable plate 71, an idler shaft 24 is rotatably connected to the right side of the moving plate 71 in an annular distribution manner, an idler gear 22 meshed with the inner teeth of the accelerating base gear 26 is fixedly arranged on the right side of the idler shaft 24, a driven gear 23 meshed with the idler gear 22 is fixedly arranged on the accelerating shaft 20, the accelerating base gear 26 drives the driven gear 23 to rotate through the idler gear 22, so that the rotating speed of the accelerating shaft 20 is higher than that of the driving shaft 31 for cutting, shaft moving cavities 21 for shaft movement are respectively communicated between the blade moving cavity 17 and the accelerating cavity 25, between the accelerating cavity 25 and the rack moving cavity 28 and between the rack moving cavity 28 and the motor moving cavity 29, when the one-way motor 30 for cutting is started, the driving shaft 31 for cutting can be driven to rotate, and the driving shaft 31 for cutting is rotated to drive the one-way motor 30 for cutting to move back and forth through the meshing of the gear 27 for meshing rack and the inner teeth 33, the rotation of the meshing rack gear 27 rotates the intermediate shaft 72 and rotates the acceleration shaft 20 through the meshing of the acceleration base gear 26, the idle gear 22 and the driven gear 23, and the rotation of the acceleration shaft 20 rotates the rotary blade base 19 to rotate the cutting blade 18 for cutting.

According to the embodiment, the clutch device 103 is described in detail below, the clutch device 103 includes an arc block moving cavity 52 annularly disposed in the gear 27 for engaging rack, an arc block 54 slidably connected to the arc block moving cavity 52 and capable of contacting the driving shaft 31 for cutting, an arc pressing spring 53 connected between the arc block 54 and the inner wall of the arc block moving cavity 52, a spline cavity 73 annularly disposed in the gear 27 for engaging rack, a spline 55 capable of extending into the spline cavity 73 and fixedly disposed on the driving shaft 31 for cutting, the spline 55 enables the driving shaft 31 for cutting to be spline-connected to the gear 27 for engaging rack, when the one-way motor 30 for cutting is started and the gear 27 for engaging rack cannot rotate, the driving shaft 31 for cutting continues to rotate to drive the spline 55 to press the arc block 54, and the pressed arc block 54 slides into the arc block moving cavity 52 along the arc block moving cavity 52 to enable the arc block 54 for cutting to be pressed The driving shaft 31 can continue to drive the spline 55 to rotate, and damage to the one-way cutting motor 30 is reduced.

Advantageously, the rear side of the rack moving chamber 28 is connected to a plate moving up and down chamber 74 opened rearward, an up-and-down moving link 32 fixed to the rear side of the inner rack plate 33 is slidably coupled to the plate up-and-down moving chamber 74, a handle 16 for facilitating manual operation is fixedly arranged on one side of the up-and-down moving connecting rod 32 extending out of the box body 11, an upper induction plate 34 is fixedly arranged in the top wall of the plate up-down moving cavity 74, a lower induction plate 35 is fixedly arranged in the bottom wall of the plate up-down moving cavity 74, when the up-and-down moving connecting rod 32 contacts the upper or

lower induction plate

34 or 35, the single-phase motor 36 for transportation is stopped for a certain time to cut, when the up-and-down moving link 32 moves from the lower limit position to the upper limit position or from the upper limit position to the lower limit position, the vertical movement of the vertical movement connecting rod 32 causes the vertical movement of the internal rack plate 33, and the vertical movement changes the forward/backward movement direction of the meshing rack gear 27.

The following will describe in detail the use steps of a metal plate cutting apparatus for improving energy efficiency according to the present invention with reference to fig. 1 to 6: in the initial state, the upper belt 15 is at the lower limit position, the one-way cutting motor 30 is at the rear limit position, and the internal rack 33 is at the upper limit position.

When the metal plate 12 needs to be placed, the metal plate 12 is manually placed between the upper belt 15 and the lower belt 62, the left moving rotating shaft 13 moves upwards to drive the left moving belt wheel 14 to move upwards, the right moving shaft 63 moves upwards to drive the right moving belt wheel 64 to move upwards and drive the sliding block 50 to move upwards to enable the jacking spring 49 to be extruded and contracted, the contracted in-shaft jacking spring 70 stretches to drive the spline shaft 42 to move upwards to enable the output bevel gear 44 to be still meshed and connected with the driven bevel gear 47, then the single-phase motor 36 for conveying is started to drive the driving shaft 37 for conveying to rotate to drive the right belt wheel 59 to rotate, the right belt wheel 59 rotates to drive the left belt wheel 60 through the lower belt 62 to rotate so as to drive the metal plate 12 to move rightwards through the lower belt 62, the right belt wheel 59 rotates to drive the driving shaft 38 to rotate so as to drive the driving shaft 41 to rotate the driving shaft 41 through the meshing of the driving bevel gear 39 and the driving bevel gear The right moving shaft 63 is driven to rotate, and the right moving shaft 63 rotates to drive the left moving belt wheel 14 to rotate through the upper belt 15, so that the upper belt 15 can drive the metal plate 12 to move rightwards.

When the metal plate 12 is cut, the cutting one-way motor 30 is started to drive the cutting driving shaft 31 to rotate, the gear 27 for meshing rack is positioned at the rear limit position and can not move backwards continuously, the cutting driving shaft 31 rotates to drive the spline 55 to extrude the arc block 54, the extruded arc block 54 slides into the arc block moving cavity 52 along the arc block moving cavity 52, so that the cutting driving shaft 31 can drive the spline 55 to rotate continuously, the damage to the cutting one-way motor 30 is reduced, when the metal plate 12 moves rightwards to a reasonable position, the up-and-down moving connecting rod 32 is driven to move downwards to the lower limit position by moving the pull handle 16 downwards manually or through other channels, the up-and-down moving connecting rod 32 is contacted with the lower induction plate 35, so that the conveying one-way motor 36 stops operating for a period of time, and the contracted jacking spring 49 compresses the metal plate 12 through the downward force, the up-down moving connecting rod 32 moves downwards to drive the inner rack plate 33 to move downwards so that the meshing rack gear 27 is meshed and connected with the upper wall of the inner rack plate 33, the running one-way cutting motor 30 can drive the driving shaft 31 for cutting to rotate, the driving shaft 31 for cutting drives the one-way cutting motor 30 to move forwards through meshing of the meshing rack gear 27 and the inner rack plate 33, the meshing rack gear 27 rotates to drive the middle shaft 72 to rotate and drives the accelerating shaft 20 to rotate through meshing of the accelerating base gear 26, the idle gear 22 and the driven gear 23, the accelerating shaft 20 rotates to drive the rotating blade base 19 to rotate so that the cutting blade 18 rotates to cut, and after the cutting is finished, the single-phase conveying motor 36 is started again to drive the metal plate 12 to move rightwards to carry out the next cutting.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an improve energy utilization's metal sheet cutting device, includes the box, its characterized in that: an upward conveying cavity with an upward opening is arranged in the box body, a lower conveying cavity is connected to the lower side of the upper conveying cavity, a single-phase motor for conveying is fixedly arranged in the front wall on the right side of the lower conveying cavity, a driving shaft for conveying extending into the lower conveying cavity is fixedly arranged on an output shaft on the rear side of the single-phase motor for conveying, a right belt wheel is fixedly arranged on the driving shaft for conveying, a left belt wheel shaft is rotatably connected to the front wall on the left side of the lower conveying cavity, a left belt wheel is fixedly arranged on the left belt wheel shaft, a lower belt is connected between the left belt wheel and the right belt wheel, a metal plate can be placed on the lower belt, the single-phase motor for conveying is started to drive the lower belt to convey the metal plate rightwards, sliding cavities which are symmetrical front and back by taking the upper conveying cavity as the center are arranged in the box body, sliding blocks are slidably connected in the sliding cavities, the sliding cavity and the upper conveying cavity are connected with an opening, the sliding block on the front side is rotatably connected with a right moving shaft which is rotatably connected to the sliding block on the rear side, a right moving belt wheel which is fixed to the right moving shaft is arranged in the upper conveying cavity, a left moving rotating shaft which is located on the upper side of a left belt wheel shaft is slidably connected to the front wall of the upper conveying cavity, a left moving belt wheel is fixedly arranged on the left moving rotating shaft, an upper belt is connected between the left moving belt wheel and the right moving belt wheel, the sliding block which is slidably connected into the sliding cavity can slide to a reasonable position according to the thickness of the metal plate so that the upper belt is tightly attached to the upper side face of the metal plate, an engaging cavity which is located on the rear side of the upper conveying cavity is arranged in the box body, and a transmission device which can drive the right moving belt wheel to rotate through the single-phase motor for conveying so that the upper belt can drive the metal plate to move rightwards is A cutting device which is positioned at the lower side of the upper conveying cavity and at the right side of the lower conveying cavity is arranged in the box body, and the cutting device can cut the metal plate; the transmission device comprises a driving shaft which is fixedly arranged on the left side of the right belt pulley and extends into the meshing cavity, a driving bevel gear is fixedly arranged on the left side of the driving shaft, a transmission shaft is rotatably connected to the bottom wall of the meshing cavity, the driving bevel gear which is in meshing connection with the driving bevel gear is fixedly arranged on the transmission shaft, a shaft sliding cavity is arranged in the transmission shaft, a spline shaft is slidably connected in the shaft sliding cavity, the spline shaft is in splined connection with the transmission shaft, an output bevel gear is fixedly arranged on the upper side of the spline shaft, an in-shaft jacking spring which is used for jacking the spline shaft upwards is connected between the lower side of the spline shaft and the bottom wall of the shaft sliding cavity, and a driven bevel gear which is in; the cutting device comprises a motor moving cavity arranged in the box body, the motor moving cavity is internally and slidably connected with an one-way motor for cutting, a driving shaft for cutting is fixedly arranged on an output shaft on the left side of the one-way motor for cutting, a rack moving cavity arranged on the left side of the motor moving cavity is arranged in the box body, an internal toothed bar plate is slidably connected in the rack moving cavity from top to bottom, the driving shaft for cutting stretches into the internal toothed bar plate, a gear which can be meshed with the meshing rack of the internal toothed bar plate is connected on the driving shaft, a clutch device which can reduce the damage to the started one-way motor for cutting when the gear for meshing rack cannot rotate is arranged in the gear for meshing rack, an accelerating cavity arranged on the left side of the rack moving cavity is arranged in the box body, and an accelerating base gear is slidably, the left side of the gear for the meshing rack is fixedly provided with an intermediate shaft which extends into the accelerating cavity and is fixed on the right side of the accelerating base gear, a blade moving cavity which is positioned on the left side of the accelerating cavity is arranged in the box body, the left wall of the blade moving cavity is connected with an accelerating shaft in a sliding manner, a rotating blade base which is fixed on the accelerating shaft is arranged in the blade moving cavity, cutting blades for cutting the metal plate are fixedly distributed on the rotating blade base in an annular manner, the accelerating shaft extends into the accelerating cavity and is rotatably connected on the left side of the accelerating base gear, the left side of the accelerating base gear is rotatably connected with a moving plate, the right side of the moving plate is rotatably connected with an idler shaft in an annular manner, the right side of the idler shaft is fixedly connected with an idler which is meshed with the inner teeth of the accelerating, the accelerating base gear drives the driven gear to rotate through the idler gear, so that the rotating speed of the accelerating shaft is higher than that of the driving shaft for cutting, and shaft moving cavities for moving shafts are respectively communicated between the blade moving cavity and the accelerating cavity, between the accelerating cavity and the rack moving cavity and between the rack moving cavity and the motor moving cavity.

2. The apparatus for cutting a metal plate for improving energy efficiency of claim 1, wherein: the clutch device comprises an arc block moving cavity which is annularly distributed in the gear for the meshing rack, an arc block which can contact the driving shaft for cutting is slidably connected in the arc block moving cavity, an arc jacking spring is connected between the arc block and the inner wall of the arc block moving cavity, spline cavities are annularly distributed in the gear for the meshing rack, splines which can stretch into the spline cavities are fixedly arranged on the driving shaft for cutting, and the splines enable the driving shaft for cutting to be connected with the gear for the meshing rack in a spline mode.

3. The apparatus for cutting a metal plate for improving energy efficiency of claim 2, wherein: the rack moves the chamber rear side and connects the board that the opening is backward and reciprocates the chamber, the board reciprocates intracavity sliding connection and is fixed in the connecting rod that reciprocates of internal tooth slat rear side, it stretches out to reciprocate the connecting rod one side outside the box sets firmly the handle that is used for making things convenient for manual operation, the board reciprocates and sets firmly the response board in the chamber roof, the board reciprocates and sets firmly down the response board in the chamber diapire.