CN112372045A

CN112372045A - Aluminum sheet is equipment for dicing

Info

Publication number: CN112372045A
Application number: CN202011070115.XA
Authority: CN
Inventors: 肖家华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-02-19

Abstract

The invention relates to a device for cutting blocks, in particular to a device for cutting aluminum sheets into blocks. The aluminum sheet dicing equipment has good safety, can automatically perform blanking and can rapidly perform dicing. The present invention provides an apparatus for cutting an aluminum sheet, comprising: the conveying mechanism is arranged on one side of the top of the base; the other side of the top of the base is provided with a propelling mechanism; and the cutting mechanism is arranged on one side, close to the conveying mechanism, of the top of the base. The aluminum sheet cutting machine has the advantages that the cutting mechanism is used for controlling the pushing mechanism to operate, the pushing mechanism is used for controlling the conveying mechanism to automatically and intermittently feed aluminum sheets, the cutting mechanism is matched for quickly cutting and conveying the aluminum sheets leftwards, the collection is convenient, the manual cutting step is saved, and the cutting accuracy and the working safety are improved.

Description

Aluminum sheet is equipment for dicing

Technical Field

The invention relates to a device for cutting blocks, in particular to a device for cutting aluminum sheets into blocks.

Background

The aluminum sheet is an aluminum sheet having a thickness of 0.2 mm to 500 mm inclusive, a width of 200 mm to 16m inclusive, and is called an aluminum sheet, and the aluminum sheet is an aluminum sheet having a thickness of 0.2 mm to 200 mm inclusive, and is a row material or a strip material having a width of 200 mm inclusive. The aluminum sheet is a rectangular plate rolled and processed by an aluminum ingot and is divided into a pure aluminum sheet, an alloy aluminum sheet, an aluminum sheet, a medium-thickness aluminum sheet and a pattern aluminum sheet.

Due to the unique material, the aluminum sheet has very wide application, and is commonly processed by mechanical parts, manufactured by a mould, coated by a heat-insulating pipeline, a high-quality ship board and the like. It is specially used in the fields of aerospace and military affairs, such as large aircraft manufacture in China, Shenzhou airship series, satellite, etc.

When using the aluminum sheet to add man-hour, need carry out the stripping and slicing to the aluminum sheet, generally all use artificial mode to carry out the stripping and slicing to the aluminum sheet, the specification that causes the stripping and slicing easily differs, and the effect is different, and the easy fish tail staff's of misoperation both hands.

Therefore, an aluminum sheet dicing device with good safety, automatic blanking and rapid dicing needs to be designed to solve the above problems.

Disclosure of Invention

The invention aims to overcome the defects that the manual mode for cutting the aluminum sheet is easy to cause different cutting specifications, different effects and improper operation and easily scratches the hands of workers, and provides the aluminum sheet cutting equipment which has good safety, automatic blanking and quick cutting.

The technical scheme is as follows: an apparatus for cutting an aluminum sheet, comprising: the conveying mechanism is arranged on one side of the top of the base; the other side of the top of the base is provided with a propelling mechanism; and the cutting mechanism is arranged on one side, close to the conveying mechanism, of the top of the base.

As an improvement of the above aspect, the conveying mechanism includes: four first supporting rods are uniformly and symmetrically arranged at the top of the base; the first rotating shafts are rotatably arranged between two first supporting rods with two close ends; the first belt pulley is wound between the two first rotating shafts; the two sides of the base are symmetrically provided with the fixed rods; the four fixed rods are provided with first clamping blocks; the two sides of the surface of the first belt pulley are uniformly and symmetrically provided with fixed blocks; the two sides of each fixed block are provided with torsion springs; the other end of each torsion spring is connected with a clamping assembly, and the first clamping block is matched with the clamping assembly; the clamping assembly is rotatably connected with the guide rods; and a second belt pulley is wound between one ends of the two first rotating shafts, which are close to the propelling mechanism.

As an improvement of the above aspect, the propulsion mechanism includes: the other side of the top of the base is provided with a bracket; the end of the upper part of the bracket far away from the second belt pulley and the end of the middle part of the bracket close to the cutting mechanism are both rotatably provided with a second rotating shaft; the first ratchet gear is arranged at the bottom of the second rotating shaft close to the cutting mechanism; the two ends of the second rotating shafts close to each other are provided with first bevel gears, and the two first bevel gears are meshed; one end of the upper part of the bracket, which is close to the second belt pulley, is rotatably provided with a second bevel gear through a rotating shaft, the other end of the second rotating shaft which is close to the bracket is provided with a second bevel gear, and the two second bevel gears are meshed; the other end of the rotating shaft connected with the second bevel gear is provided with a rotating block; the other end of the rotating block is rotatably provided with a push rod; the first sliding rail is arranged between one end of the upper part of the bracket, which is close to the second belt pulley, and the adjacent first supporting rod; the first sliding block is arranged on the first sliding rail in a sliding mode, and one end of the side wall of the first sliding block is rotatably connected with the other end of the pushing rod; the pushing block is rotatably arranged on the other side of the first sliding block and matched with the second belt pulley; and a second clamping block is arranged at the lower end of the first sliding block close to the pushing block, and the second clamping block is matched with the pushing block.

As an improvement of the above aspect, the cutting mechanism includes: the supporting blocks are symmetrically arranged on one side, close to the first belt pulley, of the top of the base; the second sliding rails are symmetrically arranged between the lower ends of the two supporting blocks; the two second sliding rails are provided with second sliding blocks in a sliding manner; a cutting knife is arranged on one side of the top of the second sliding block; the cylinder is arranged inside the lower end of the supporting block close to the first ratchet gear, and a telescopic rod of the cylinder is connected with the side wall of the second sliding block; the two sides of the second sliding block are provided with the ratchet bars, and the first ratchet gear is matched with the adjacent ratchet bars; the top of the base is symmetrically provided with a second supporting rod close to one side of the second sliding rail; the middle part of the second support rod close to the cylinder is rotatably provided with a first rotating rod through a support rod; the lower end of the first rotating rod is provided with a second ratchet gear which is matched with the adjacent ratchet strip; the upper ends of the two second support rods are rotatably provided with second rotating rods; one end of the second rotating rod, which is close to the first rotating rod, is provided with a third bevel gear, and the two third bevel gears are meshed; spur gears are symmetrically arranged at two ends of the second rotating rod; the top of the base is symmetrically provided with supporting plates close to the second supporting rod, two ends of the second rotating rod are respectively and rotatably connected with the upper ends of the adjacent supporting plates, and the two spur gears are respectively positioned between the adjacent second supporting rods and the supporting plates; the upper parts of the two supporting plates close to one side are uniformly and symmetrically provided with rollers in a rotating mode; the upper parts of the two supporting plates are symmetrically and rotatably provided with third rotating rods at one side close to the second rotating rod, and the four third rotating rods penetrate through the supporting plates; rotating wheels are arranged at one ends of the four third rotating rods close to each other; the other ends of the four third rotating rods are provided with round gears, the two round gears on the same side are meshed with each other, and the two round gears on the upper side are meshed with the adjacent spur gears respectively.

As an improvement of the above scheme, the method further comprises the following steps: the containing box is placed to base one side near the backup pad.

As an improvement of the above scheme, the method further comprises the following steps: the guard plate is arranged above one side of the support block far away from the air cylinder and is matched with the cutting knife.

As an improvement of the scheme, the expansion speed of the air cylinder can be adjusted.

As an improvement of the above, the storage box is replaceable.

Compared with the prior art, the invention has the following advantages: 1. the aluminum sheet cutting machine has the advantages that the cutting mechanism is used for controlling the pushing mechanism to operate, the pushing mechanism is used for controlling the conveying mechanism to automatically and intermittently feed aluminum sheets, the cutting mechanism is matched for quickly cutting and conveying the aluminum sheets leftwards, the collection is convenient, the manual cutting step is saved, and the cutting accuracy and the working safety are improved.

2. After the aluminum sheet that the cutting is good conveys to the leftmost left, collect through the containing box, make things convenient for the staff to collect and handle, prevent that the aluminum sheet that the cutting is good from scattering.

3. When the cutting knife carries out the stripping and slicing to the aluminum sheet, the realization that can be better under the effect of guard plate carries out the stripping and slicing to the aluminum sheet, protection staff's personal safety.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a perspective view of the transfer mechanism of the present invention.

Fig. 3 is a perspective view of the propulsion mechanism of the present invention.

Fig. 4 is a perspective view of the cutting mechanism of the present invention.

Number designation in the figures: 1. base, 2, conveying mechanism, 20, first supporting rod, 21, first rotating shaft, 22, first belt pulley, 23, fixing rod, 24, first fixture block, 25, fixing block, 26, torsion spring, 27, clamping component, 28, guide rod, 29, second belt pulley, 3, pushing mechanism, 30, bracket, 31, second rotating shaft, 32, first ratchet gear, 33, first bevel gear, 34, second bevel gear, 35, rotating block, 36, pushing rod, 37, first sliding rail, 38, first sliding block, 39, pushing block, 310, second fixture block, 4, cutting mechanism, 40, supporting block, 41, second sliding rail, 42, second sliding block, 43, 44, air cylinder, 45, ratchet bar, 46, second supporting rod, 47, first rotating rod, 48, second ratchet gear, 49, second ratchet bar, 410, third bevel gear, 411, spur gear, 412, 411, spur gear, third bevel gear, 3, pushing mechanism, 30, bracket, 31, second rotating shaft, 32, first ratchet gear, 33, first bevel gear, 34, second bevel gear, second sliding block, supporting plate, 413, gyro wheel, 414, third dwang, 415, gyro wheel, 416, circular gear, 5, containing box, 6, guard plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.

Example 1

As shown in fig. 1, an apparatus for cutting aluminum sheets comprises a base 1, a conveying mechanism 2, a pushing mechanism 3 and a cutting mechanism 4, wherein the conveying mechanism 2 is arranged on the rear side of the top of the base 1, the pushing mechanism 3 is arranged on the front side of the top of the base 1, and the cutting mechanism 4 is arranged on the left side of the top of the base 1.

When the aluminum sheet is required to be diced, firstly, a worker starts the cutting mechanism 4, when the cutting mechanism 4 drives the pushing mechanism 3 to operate, the pushing mechanism 3 drives the conveying mechanism 2 to operate leftwards, then the aluminum sheet is placed on the conveying mechanism 2, the conveying mechanism 2 conveys the aluminum sheet leftwards, and the cutting mechanism 4 is convenient to dice the aluminum sheet. When cutting mechanism 4 no longer drives advancing mechanism 3 operation, transport mechanism 2 stop motion to make the aluminum sheet stop conveying left, cutting mechanism 4 carries out the stripping and slicing to the aluminum sheet, and the back is accomplished to the stripping and slicing, cutting mechanism 4 conveys the good aluminum sheet of cutting left, makes things convenient for the staff to collect, and simultaneously, cutting mechanism 4 drives advancing mechanism 3 and operates once more, and advancing mechanism 3 conveys the aluminum sheet left once more, realizes automatic interval unloading, does benefit to the stripping and slicing, increases the security of aluminum sheet stripping and slicing.

Example 2

As shown in fig. 2, 3 and 4, an apparatus for cutting aluminum sheets comprises a conveying mechanism 2, based on embodiment 1, a first supporting rod 20, a first rotating shaft 21, a first belt pulley 22, a fixing rod 23, a first block 24, a fixing block 25, a torsion spring 26, a clamping assembly 27, a guiding rod 28 and a second belt pulley 29, wherein four first supporting rods 20 are uniformly and symmetrically arranged on the top of a base 1, the first rotating shaft 21 is rotatably arranged between two first supporting rods 20 with two adjacent ends, the first belt pulley 22 is wound between the two first rotating shafts 21, the fixing rod 23 is symmetrically arranged on the left side and the right side of the base 1, the first block 24 is arranged on the four fixing rods 23, the fixing blocks 25 are uniformly and symmetrically arranged on the two sides of the surface of the first belt pulley 22, the torsion spring 26 is arranged on the left side and the right side of each fixing block 25, the other end of each torsion spring 26 is connected with the clamping assembly 27, the first clamping blocks 24 are matched with the clamping assembly 27, the fixing blocks 25 on two sides are both provided with guide rods 28 in a sliding manner, the torsion spring 26 is sleeved on the guide rods 28, the clamping assembly 27 is rotatably connected with the guide rods 28, and a second belt pulley 29 is wound between the front ends of the two first rotating shafts 21.

When the aluminum sheet is required to be cut, firstly, a worker starts the cutting mechanism 4, when the cutting mechanism 4 drives the pushing mechanism 3 to operate, the pushing mechanism 3 drives the second belt pulley 29 to transmit leftwards, the second belt pulley 29 drives the first belt pulley 22 to rotate leftwards through the two first rotating shafts 21, the first belt pulley 22 drives the fixed block 25 to rotate leftwards, the fixed block 25 drives the clamping components 27 to rotate through the torsion spring 26, when the two clamping components 27 at the rightmost side of the lower side extrude the two first clamping blocks 24 at the right side, the two clamping components 27 at the rightmost lower side of the lower side are lifted upwards, the connected torsion spring 26 is stretched, then the worker places the aluminum sheet below the two lifted clamping components 27, when the two clamping components 27 at the rightmost lower side of the lower side move to the upper side of the second belt pulley 29 and do not extrude the two first clamping blocks 24 at the right side any more, the connected torsion spring 26 is reset, the two clamping assemblies 27 are driven to reset, the aluminum sheet is fixed on the first belt pulley 22 by the two clamping assemblies 27 and is transmitted leftwards, and the aluminum sheet can be fixedly transmitted by repeating the operations. When the aluminum sheet is conveyed to the leftmost of first belt pulley 22, two clamping components 27 at the leftmost of upside extrude two first fixture blocks 24 at the left, two clamping components 27 at the leftmost of upside lift up from the aluminum sheet, connected torsion spring 26 is stretched, make the aluminum sheet convey to cutting mechanism 4 direction under the effect of first belt pulley 22 and clamping components 27 at rear, two clamping components 27 at the leftmost of upside move to second belt pulley 29 downside, when two first fixture blocks 24 at no longer extruding the left, connected torsion spring 26 resets, drive two clamping components 27 and reset, conveniently reuse, repeat above-mentioned operation and can realize carrying out automatic unloading to the aluminum sheet, convenient stripping and slicing.

The propelling mechanism 3 comprises a support 30, a second rotating shaft 31, a first ratchet gear 32, a first bevel gear 33, a second bevel gear 34, a rotating block 35, a pushing rod 36, a first slide rail 37, a first slide block 38, a pushing block 39 and a second clamping block 310, wherein the support 30 is arranged on the front side of the top of the base 1, the second rotating shaft 31 is rotatably arranged at the front end of the upper part of the support 30 and the left end of the middle part of the support 30, the first ratchet gear 32 is arranged at the bottom of the left second rotating shaft 31, the first bevel gears 33 are respectively arranged at the adjacent ends of the two second rotating shafts 31, the two first bevel gears 33 are meshed, the second bevel gear 34 is rotatably arranged at the rear end of the upper part of the support 30 through a rotating shaft, the second bevel gear 34 is arranged at the right end of the adjacent second rotating shaft 31, the two second bevel gears 34 are meshed, the rotating block 35 is, a first slide rail 37 is arranged between the rear end of the upper part of the bracket 30 and the adjacent first support rod 20, a first slide block 38 is arranged on the first slide rail 37 in a sliding manner, the right end of the side wall of the first slide block 38 is rotatably connected with the other end of the push rod 36, a push block 39 is rotatably arranged on the left side of the first slide block 38, the push block 39 is matched with the second belt pulley 29, a second clamping block 310 is arranged at the lower end of the first slide block 38, and the second clamping block 310 is matched with the push block 39.

When the aluminum sheet needs to be cut into pieces, firstly, the worker starts the cutting mechanism 4, when the cutting mechanism 4 drives the first ratchet gear 32 to rotate counterclockwise, the first ratchet gear 32 drives the left second rotating shaft 31 to rotate counterclockwise, the left second rotating shaft 31 drives the connected first bevel gear 33 to rotate counterclockwise, the two first bevel gears 33 are engaged to drive the upper second rotating shaft 31 to rotate clockwise, the upper second rotating shaft 31 drives the connected second bevel gear 34 to rotate clockwise, the two second bevel gears 34 are engaged to drive the rotating block 35 to rotate counterclockwise, the rotating block 35 drives the first sliding block 38 to slide left and right on the first sliding rail 37 through the pushing rod 36, when the first sliding block 38 drives the pushing block 39 and the second clamping block 310 to move left, the pushing block 39 is clamped in the clamping hole formed on the second belt pulley 29, the second clamping block 310 clamps the pushing block 39, the pushing block 39 is fixed, so that the second belt pulley 29 is driven to rotate leftwards, and the aluminum sheet is conveyed leftwards. When the first sliding block 38 drives the pushing block 39 and the second latch 310 to move rightward, the second latch 310 no longer latches the pushing block 39, the pushing block 39 rotates upward, the pushing block 39 no longer latches in the latching hole of the second belt pulley 29, and the second belt pulley 29 stops rotating. One-way conveying can be realized to the aluminum sheet through this mechanism, conveniently carry out the stripping and slicing to the aluminum sheet.

The cutting mechanism 4 comprises a supporting block 40, a second sliding rail 41, a second sliding block 42, a cutting knife 43, an air cylinder 44, a ratchet bar 45, a second supporting rod 46, a first rotating rod 47, a second ratchet gear 48, a second rotating rod 49, a third bevel gear 410, a spur gear 411, a supporting plate 412, a roller 413, a third rotating rod 414, a rotating wheel 415 and a circular gear 416, wherein the supporting block 40 is symmetrically arranged on the left side of the top of the base 1, the second sliding rail 41 is symmetrically arranged between the lower ends of the two supporting blocks 40, the second sliding block 42 is slidably arranged on the two second sliding rails 41, the cutting knife 43 is arranged on the rear side of the top of the second sliding block 42, the air cylinder 44 is arranged inside the lower end of the front sliding block 40, the telescopic rod of the air cylinder 44 is connected with the side wall of the second sliding block 42, the ratchet bar 45 is arranged on both sides of the second sliding block 42, the first ratchet, a first rotating rod 47 is rotatably arranged at the middle part of the front second supporting rod 46 through a supporting rod, a second ratchet gear 48 is arranged at the lower end of the first rotating rod 47, the second ratchet gear 48 is matched with the left ratchet bar 45, a second rotating rod 49 is rotatably arranged at the upper ends of the two second supporting rods 46, third bevel gears 410 are respectively arranged at the ends of the second rotating rods 49 close to the first rotating rod 47, the two third bevel gears 410 are meshed, spur gears 411 are symmetrically arranged at the two ends of the second rotating rod 49, supporting plates 412 are symmetrically arranged at the left side of the top of the base 1, the two ends of the second rotating rod 49 are respectively rotatably connected with the upper ends of the close supporting plates 412, the two spur gears 411 are respectively arranged between the close second supporting rods 46 and the close supporting plates 412, rollers 413 are uniformly and symmetrically arranged at the close side of the upper parts of the two supporting plates 412, the four third rotating rods 414 all penetrate through the supporting plate 412, the rotating wheels 415 are arranged at the adjacent ends of the four third rotating rods 414, the circular gears 416 are arranged at the other ends of the four third rotating rods 414, the two circular gears 416 on the same side are all meshed with each other, and the two circular gears 416 on the upper side are respectively meshed with the adjacent spur gears 411.

When the aluminum sheet is required to be diced, the worker controls the cylinder 44 to extend, the telescopic rod of the cylinder 44 drives the second sliding block 42 to move backwards along the second sliding rail 41, the second sliding block 42 drives the two ratchet bars 45 to move backwards, the two ratchet bars 45 respectively move backwards along the bevel edges of the first ratchet gear 32 and the second ratchet gear 48, the second sliding block 42 drives the cutting knife 43 to move backwards, and the aluminum sheet moved to the rear of the cutting knife 43 is diced. After the cutting, the worker controls the cylinder 44 to contract, and the second slider 42 drives the cutter 43 to move forward to cut the aluminum sheet again. Meanwhile, the second slider 42 drives the two ratchet bars 45 to move forward, the left ratchet bar 45 blocks the ratchets of the second ratchet wheel 48, the second ratchet wheel 48 is driven to rotate clockwise, the second ratchet wheel 48 drives the first rotating rod 47 to rotate clockwise, the first rotating rod 47 drives the connected third bevel gear 410 to rotate clockwise, the two third bevel gears 410 are meshed, so as to drive the second rotating rod 49 to rotate counterclockwise, the second rotating rod 49 drives the spur gear 411 to rotate counterclockwise, the spur gear 411 is meshed with the upper circular gear 416, so as to drive the upper third rotating rod 414 to rotate clockwise, the upper third rotating rod 414 drives the upper rotating wheel 415 to rotate clockwise, the upper circular gear 416 is meshed with the lower circular gear 416, so as to drive the cut aluminum sheets to be conveyed to the left through the roller 413, and the collection is convenient. Meanwhile, the right ratchet bar 45 blocks the ratchet of the first ratchet gear 32 to drive the first ratchet gear 32 to rotate clockwise, so that the pushing mechanism 3 is controlled to operate, and the pushing mechanism 3 controls the conveying mechanism 2 to automatically feed materials at intervals, thereby facilitating the dicing.

Example 3

As shown in fig. 1, the aluminum sheet dicing apparatus further includes a storage box 5 in addition to the embodiments 1 and 2, and the storage box 5 is placed on the left side of the base 1.

After the aluminum sheet that cuts conveys to the leftmost left, collect through containing box 5, make things convenient for the staff to collect and handle, prevent that the aluminum sheet that cuts from scattering.

The cutting device is characterized by further comprising a protection plate 6, wherein the protection plate 6 is arranged above one side of the rear supporting block 40, and the protection plate 6 is matched with the cutting knife 43.

When the cutting knife 43 is used for cutting the aluminum sheet, the aluminum sheet can be cut better under the action of the protection plate 6, and the personal safety of workers is protected.

The expansion and contraction speed of the cylinder 44 is adjustable.

The speed of equipment operation can be adjusted, and the efficiency of stripping and slicing is increased.

The storage box 5 is replaceable.

When one storage box 5 is full, a new storage box 5 can be replaced for collection.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An aluminum sheet is equipment for dicing, characterized by includes:

the device comprises a base (1), wherein a conveying mechanism (2) is arranged on one side of the top of the base (1);

the other side of the top of the base (1) is provided with a propelling mechanism (3);

the cutting mechanism (4) is arranged on one side, close to the conveying mechanism (2), of the top of the base (1).

2. The apparatus for cutting aluminum sheets as set forth in claim 1, wherein the transfer mechanism (2) comprises:

the top of the base (1) is uniformly and symmetrically provided with four first supporting rods (20);

the first rotating shaft (21) is rotatably arranged between two first supporting rods (20) with two close ends;

a first pulley (22), between the two first rotating shafts (21), the first pulley (22) is wound;

the fixing rods (23) are symmetrically arranged on two sides of the base (1);

the first fixture blocks (24) are arranged on the four fixing rods (23);

the fixing blocks (25) are uniformly and symmetrically arranged on two sides of the surface of the first belt pulley (22);

the two sides of each fixed block (25) are provided with the torsion springs (26);

the other end of each torsion spring (26) is connected with the clamping assembly (27), and the first clamping block (24) is matched with the clamping assembly (27);

the guide rods (28) are arranged on all the fixing blocks (25) in a sliding mode, the torsion spring (26) is sleeved on the guide rods (28), and the clamping assembly (27) is rotatably connected with the guide rods (28);

and a second belt pulley (29) is wound between one ends of the two first rotating shafts (21) close to the propelling mechanism (3).

3. The apparatus for cutting aluminum sheets as set forth in claim 2, wherein the pushing mechanism (3) comprises:

the bracket (30) is arranged on the other side of the top of the base (1);

a second rotating shaft (31), wherein one end of the upper part of the bracket (30) far away from the second belt pulley (29) and one end of the middle part of the bracket (30) close to the cutting mechanism (4) are both rotatably provided with the second rotating shaft (31);

the first ratchet gear (32) is arranged at the bottom of the second rotating shaft (31) close to the cutting mechanism (4);

the first bevel gears (33) are arranged at the close ends of the two second rotating shafts (31), and the two first bevel gears (33) are meshed;

one end of the upper part of the bracket (30) close to the second belt pulley (29) is rotatably provided with a second bevel gear (34) through a rotating shaft, the other end of the second rotating shaft (31) close to the upper part of the bracket (30) is provided with the second bevel gear (34), and the two second bevel gears (34) are meshed;

the other end of the rotating shaft connected with the second bevel gear (34) is provided with a rotating block (35);

the other end of the rotating block (35) is rotatably provided with a push rod (36);

a first sliding rail (37), wherein the first sliding rail (37) is arranged between one end of the upper part of the bracket (30) close to the second belt pulley (29) and the close first supporting rod (20);

the first sliding block (38) is arranged on the first sliding rail (37) in a sliding mode, one end of the side wall of the first sliding block (38) is rotatably connected with the other end of the pushing rod (36);

the pushing block (39) is rotatably arranged on the other side of the first sliding block (38), and the pushing block (39) is matched with the second belt pulley (29);

the second fixture block (310) is arranged on the first sliding block (38) close to the lower end of the pushing block (39), and the second fixture block (310) is matched with the pushing block (39).

4. The apparatus for cutting aluminum sheets as set forth in claim 3, wherein the cutting mechanism (4) comprises:

the supporting blocks (40) are symmetrically arranged on one side, close to the first belt pulley (22), of the top of the base (1);

the second sliding rails (41) are symmetrically arranged between the lower ends of the two supporting blocks (40);

the second sliding blocks (42) are arranged on the two second sliding rails (41) in a sliding manner;

a cutting knife (43), wherein the cutting knife (43) is arranged on one side of the top of the second sliding block (42);

the cylinder (44) is arranged inside the lower end of the supporting block (40) close to the first ratchet gear (32), and an expansion rod of the cylinder (44) is connected with the side wall of the second sliding block (42);

the two sides of the second sliding block (42) are respectively provided with a ratchet strip (45), and the first ratchet gear (32) is matched with the adjacent ratchet strips (45);

the top of the base (1) is symmetrically provided with a second supporting rod (46) close to one side of the second sliding rail (41);

the middle part of the first rotating rod (47) close to the second supporting rod (46) of the cylinder (44) is rotatably provided with the first rotating rod (47) through a supporting rod;

the lower end of the first rotating rod (47) is provided with a second ratchet gear (48), and the second ratchet gear (48) is matched with the adjacent ratchet strip (45);

the upper ends of the two second support rods (46) are rotatably provided with second rotating rods (49);

third bevel gears (410) are arranged at one ends, close to the first rotating rod (47), of the second rotating rods (49), and the two third bevel gears (410) are meshed;

the spur gear (411) is symmetrically arranged at two ends of the second rotating rod (49);

the supporting plates (412) are symmetrically arranged on the top of the base (1) close to the second supporting rod (46), two ends of the second rotating rod (49) are respectively and rotatably connected with the upper ends of the close supporting plates (412), and the two spur gears (411) are respectively positioned between the close second supporting rod (46) and the supporting plates (412);

the rollers (413) are uniformly and symmetrically arranged on the upper parts of the two supporting plates (412) close to one side in a rotating manner;

the third rotating rods (414) are symmetrically and rotatably arranged on one sides of the upper parts of the two supporting plates (412) close to the second rotating rod (49), and the four third rotating rods (414) penetrate through the supporting plates (412);

the rotating wheels (415) are arranged at one ends, close to the four third rotating rods (414), of the four third rotating rods (415);

the other ends of the four third rotating rods (414) are provided with round gears (416), the two round gears (416) on the same side are meshed with each other, and the two round gears (416) on the upper side are meshed with the adjacent spur gears (411) respectively.

5. The apparatus for cutting aluminum sheets as set forth in claim 4, further comprising:

the storage box (5) is placed on one side, close to the supporting plate (412), of the base (1).

6. The apparatus for cutting aluminum sheets as set forth in claim 5, further comprising:

the protective plate (6) is arranged above one side of the supporting block (40) far away from the air cylinder (44), and the protective plate (6) is matched with the cutting knife (43).

7. The apparatus for cutting aluminum sheets as set forth in claim 6, wherein the expansion and contraction speed of the cylinder (44) is adjustable.

8. The apparatus for cutting aluminum sheets into pieces as claimed in claim 7, wherein the storage case (5) is replaceable.