Copper strip processing slitting machine with dust blowing and heat dissipation functions

Abstract

The invention discloses a copper strip processing slitting machine with dust blowing and heat dissipation functions, and relates to the related field of copper strip processing technology.The copper strip processing slitting machine structurally comprises a slitting machine body, an inlet formed in the bottom of the front end face of the slitting machine body, and a U-shaped long bottom plate fixedly connected to the inlet of the bottom of the front end face of the slitting machine body. A small motor is started to drive a blade to cut a copper strip, meanwhile, a gear ring and fan blades are synchronously driven to rotate, the fan blades drive air on the inner side of an inlet to enter the inner side of a second inner cavity, and dust in the air makes contact with water while a water pump is started to enable a spray head to spray water; and meanwhile, when temperature is generated during copper strip cutting, surrounding air enters a second inner cavity and makes contact with water to transfer heat, relative cooling can be achieved, and when the copper strip slitting width needs to be adjusted, the copper strip slitting width can be adjusted, so that the copper strip slitting width can be adjusted, and the copper strip slitting width can be adjusted. And the operation can be quickly and simply realized only by rotating the rotating handle.

Description

Technical Field

[0001] The invention relates to the field related to copper strip processing technology, in particular to a copper strip processing slitting machine with dust blowing and heat dissipation functions. Background Art

[0002] Copper strip processing and slitting machine is an automated equipment specially used for cutting, trimming, testing, sorting and conveying copper strips. It is mainly used for processing copper strips in the wire and cable industry. It has the characteristics of high efficiency, stability and accuracy, which can improve production efficiency, reduce costs, and improve product quality and consistency.

[0003] Prior art publication number CN221675955U discloses a copper strip processing slitting machine with dust blowing and heat dissipation functions, which belongs to the technical field of copper strip processing, and includes a slitting machine platform, a slitting machine main body, a guide wheel, a blade and a heat dissipation duct, wherein the slitting machine main body is fixed on both sides of the top of the slitting machine platform, the guide wheel is installed between the slitting machine main bodies through a bearing, a slitting frame is arranged between the slitting machine main bodies, and a rotating shaft is installed inside the slitting frame through a bearing, the blades are all mounted on the outer wall of the rotating shaft, the heat dissipation duct is arranged on one side of the rotating shaft, and a semiconductor refrigeration sheet and a fan are arranged, and the cold end of the semiconductor refrigeration sheet contacts the water tank to cool the coolant inside the water tank, and the fan dissipates the heat from the hot end of the semiconductor refrigeration sheet, so that the coolant always has a cooling effect.

[0004] Although the above mentioned methods have certain advantages in improving the cooling effect, they still have certain disadvantages;

[0005] 1. Copper strips will generate a lot of dust during processing, which will pose a threat to the environment and human health if not handled properly.

[0006] 2. The generated dust cannot be collected and recycled synchronously. Summary of the invention

[0007] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a copper strip processing slitting machine with dust blowing and heat dissipation functions.

[0008] The present invention is implemented by constructing a copper strip processing slitting machine with dust blowing and heat dissipation function, the device comprises a slitting machine body, an inlet arranged at the bottom of the front end surface of the slitting machine body, a U-shaped long bottom plate fixedly connected to the inlet at the bottom of the front end surface of the slitting machine body, a guide wheel rotatably connected to the inner side of the upper end of the U-shaped long bottom plate, and an outlet arranged at the bottom of the rear end surface of the slitting machine body;

[0009] Also includes:

[0010] A rotating handle is rotatably connected to the center of the upper end surface of the slitting machine body;

[0011] The stripping device is rotatably connected to the left and right end surfaces inside the inlet.

[0012] Preferably, the slitting machine body comprises:

[0013] A first inner cavity, wherein the first inner cavity is provided inside the main body of the slitting machine;

[0014] A second inner cavity, wherein a second inner cavity is provided below the first inner cavity in the main body of the slitting machine;

[0015] A small motor is fixedly connected to the left and right ends of the slitting machine body;

[0016] A fixing plate is fixedly connected to the inside of the first inner cavity.

[0017] Preferably, the slitting machine body further includes:

[0018] A gear ring, wherein the second inner cavity has two gear rings rotatably connected thereto;

[0019] A partition, the inner side of the second inner cavity is fixedly connected with the partition;

[0020] A filter box is inserted and slidably connected to the front end surface of the slitting machine body, and the filter box is inserted into the inner side of the second inner cavity and slidably connected to the partition plate;

[0021] A nozzle is fixedly connected to the upper end surfaces on the left and right sides of the second inner cavity.

[0022] Preferably, the slitting machine body also includes

[0023] A water pump, wherein the water pump is fixedly connected to the inside of the slitting machine body, and the bottom of the left and right end surfaces inside the second inner cavity and the nozzle are connected to the water pump through a connecting pipe;

[0024] A long rod, the left and right end surfaces of the inner side of the inlet are inserted and rotatably connected with the long rod, and the left and right end surfaces of the long rod are fixedly connected to the output end of the small motor;

[0025] Slide grooves are provided at the left and right ends of the outer side of the long rod;

[0026] The second bevel gear is slidably connected to the left and right ends of the long rod through the second bevel gear, and the second bevel gear is located at the slide groove and is slidably connected to the slide groove.

[0027] Preferably, the slitting machine body further includes:

[0028] A clamping block, wherein the inner side of the second bevel gear is fixedly connected with the clamping block, and the clamping block is located inside the slide groove and is slidably connected with the slide groove;

[0029] A third bevel gear, the long rod penetrates and is slidably connected with the third bevel gear;

[0030] A column cylinder, the long rod is penetrated by the column cylinder for sliding connection, and the third bevel gear and the column cylinder are fixedly connected to each other;

[0031] A blade is fixedly connected to the center of the outer side surface of the long rod and the right side surface of the column respectively.

[0032] Preferably, the slitting machine body further includes:

[0033] A C-shaped plate, the left side surface of the second bevel gear is rotatably connected to the outer side surface of the cylindrical barrel;

[0034] A first bevel gear, wherein the second bevel gear and the third bevel gear are meshedly connected with the first bevel gear;

[0035] A first connecting column, to which the upper end surface of the first bevel gear is fixedly connected;

[0036] A right-angle column, wherein the upper end surface of the first connecting column is inserted into and slidably connected with three right-angle columns.

[0037] Preferably, the slitting machine body further includes:

[0038] A short column, wherein one end of the right-angle column away from the first connecting column is inserted into a short column for sliding connection

[0039] Circular baffles, two circular baffles are fixedly connected to the outer side of the short column;

[0040] Gear, the left side of the short column is fixedly connected with the gear through a connecting column;

[0041] A long gear, the lower end of which is meshed and slidably connected with the long gear;

[0042] An arc plate is inserted and slidably connected between the two circular partitions.

[0043] Preferably, the slitting machine body further includes:

[0044] A first connecting plate, wherein the upper end surface of the arc plate is fixedly connected to the first connecting plate, and a sliding groove is provided on the fixed plate, and the first connecting plate passes through the sliding groove provided on the fixed plate and is slidably connected to the fixed plate;

[0045] A second connecting plate, the upper surface of the first connecting plate being rotatably connected to the second connecting plate;

[0046] A slider, wherein one end of the second connecting plate away from the first connecting plate is rotatably connected to the slider;

[0047] A screw rod, wherein the center of the upper end surface of the slitting machine body is inserted and rotatably connected with the screw rod, and the screw rod is threadedly connected with a slider, and the upper end surface of the screw rod and the rotating handle are fixedly connected to each other;

[0048] Fan blades are fixedly connected to the inner side of the gear ring.

[0049] The present invention has the following advantages: The present invention provides a copper strip processing slitting machine with dust blowing and heat dissipation function through improvement, which has the following improvements compared with the same type of equipment:

[0050] The present invention discloses a copper strip processing and slitting machine with dust blowing and heat dissipation function. When dust is generated during the copper strip slitting, a small motor is turned on to drive the blade to cut the copper strip, and the gear ring and the fan blade are simultaneously driven to rotate, and the air inside the inlet is driven to enter the inside of the second inner cavity through the fan blade. The water pump is turned on to allow the nozzle to spray water while the dust in the air contacts the water. The dust is collected by filtering and screening the dust as it falls on the inside of the filter box due to gravity. At the same time, when temperature is generated during the cutting of the copper strip, the surrounding air enters the second inner cavity and transfers heat by contacting with the water, so that relative cooling can be achieved. Simultaneously, when the width of the copper strip slitting needs to be adjusted, the operation can be quickly and simply achieved by turning the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a front schematic diagram of the structure of the present invention;

[0052] Figure 2 It is a schematic diagram of the back side of the structure of the present invention;

[0053] Figure 3 It is a schematic diagram of the structural striping device of the present invention;

[0054] Figure 4 It is a structural plan view of the present invention;

[0055] Figure 5 The present invention Figure 4 A magnified schematic diagram of structure A;

[0056] Figure 6 It is a schematic diagram of the connection and splitting of the structural striping device of the present invention;

[0057] Figure 7 It is a schematic diagram of the three-dimensional connection of the gear ring structure of the present invention.

[0058] Among them: slitting machine body -1, inlet -2, U-shaped long bottom plate -3, guide wheel -4, outlet -5, handle -6, slitting device -7, first inner cavity -8, second inner cavity -9, small motor -10, fixed plate -11, gear ring -12, partition -13, filter box -14, nozzle -15, water pump -16, long rod -17, slide groove -18, second bevel gear -19, block -20, third bevel gear -21, column -22, blade -23, C-shaped plate -24, first bevel gear -25, first connecting column -26, right-angle column -27, short column -28, circular partition -29, gear -30, long gear -31, arc plate -32, first connecting plate -33, second connecting plate -34, slider -35, screw -36, fan blade -37. DETAILED DESCRIPTION

[0059] The following is combined with Figures 1 to 7 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0060] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0062] Embodiment 1:

[0063] See also Figures 1 to 3A copper strip processing slitting machine with dust blowing and heat dissipation function of the present invention comprises a slitting machine body 1, an inlet 2 arranged at the bottom of the front end surface of the slitting machine body 1, and a plurality of reserved openings are arranged on the top inner surface of the inlet 2 to allow air to enter the inner side of the second inner cavity 9, a U-shaped long bottom plate 3 fixedly connected to the inlet 2 at the bottom of the front end surface of the slitting machine body 1, a guide wheel 4 rotatably connected to the inner side of the upper end of the U-shaped long bottom plate 3, an outlet 5 arranged at the bottom of the rear end surface of the slitting machine body 1, a rotating handle 6 is rotatably connected to the center of the upper end surface of the slitting machine body 1, and a slitting device 7 is rotatably connected to the left and right end surfaces inside the inlet 2.

[0064] The working principle of a copper strip processing slitting machine with dust blowing and heat dissipation function based on Example 1 is:

[0065] First, place the device in the working area and connect it to an external power source to provide the required power.

[0066] Second, the copper strip to be slit is placed on the guide wheel 4, and the copper strip is pushed into the inner side of the slitting machine body 1 through the entrance 2. The small motor 10 drives the long rod 17 to rotate, and drives the slide 18 to drive the second bevel gear 19 to rotate through the block 20, and synchronously drives the first bevel gear 25 to drive the third bevel gear 21 to rotate, and the copper strip can be cut by driving the column 22 to drive the blade 23 to rotate.

[0067] Embodiment 2:

[0068] See also Figures 3 to 7 , a copper strip processing and slitting machine with dust blowing and heat dissipation function of the present invention, compared with the first embodiment, this embodiment also includes:

[0069] A first inner cavity 8 is provided inside the main body 1 of the slitting machine, and a second inner cavity 9 is provided below the first inner cavity 8 inside the main body 1 of the slitting machine. A small motor 10 is fixedly connected to the left and right ends of the main body 1 of the slitting machine. A fixed plate 11 is fixedly connected to the first inner cavity 8. Two gear rings 12 are rotatably connected to the inside of the second inner cavity 9. A partition 13 is fixedly connected to the inside of the second inner cavity 9. Water is injected into the left and right ends of the second inner cavity 9. The water can be isolated and restricted by the partition 13. A filter box 14 is inserted into the front end surface of the main body 1 of the slitting machine, and the filter box 14 is inserted into the front end surface of the main body 1. The box 14 is inserted into the inner side of the second inner cavity 9 and is slidably connected with the partition 13. A dust filter is provided at the bottom of the inner side of the filter box 14 to filter and screen the dust. The upper end surfaces on the left and right sides of the second inner cavity 9 are fixedly connected with nozzles 15. A water pump 16 is fixedly connected inside the slitting machine body 1, and the bottom of the left and right end surfaces of the inner side of the second inner cavity 9 is connected to the nozzle 15 and the water pump 16 through a connecting pipe. A long rod 17 is inserted and rotatably connected to the left and right end surfaces of the inner side of the inlet 2, and the left and right end surfaces of the long rod 17 are fixedly connected to the output end of the small motor 10.

[0070] Slide grooves 18 are provided at the left and right ends of the outer side of the long rod 17, and second bevel gears 19 are slidably connected through the left and right ends of the long rod 17, and the second bevel gear 19 is located at the slide groove 18 and is slidably connected to the slide groove 18. A clamping block 20 is fixedly connected to the inner side of the second bevel gear 19, and the clamping block 20 is located inside the slide groove 18 and is slidably connected to the slide groove 18. A third bevel gear 21 is slidably connected through the long rod 17, and a column 22 is slidably connected through the long rod 17, and the third bevel gear 21 and the column 22 are fixedly connected to each other. The outer side of the long rod 17 A blade 23 is fixedly connected to the center and the right side of the column barrel 22 respectively, a C-shaped plate 24 is rotatably connected to the left side of the second bevel gear 19 and the outer side of the column barrel 22, the second bevel gear 19 is meshed with the third bevel gear 21 and connected with the first bevel gear 25, the upper end face of the first bevel gear 25 is fixedly connected with the first connecting column 26, three right-angle columns 27 are inserted into and slidably connected to the upper end face of the first connecting column 26, a short column 28 is inserted into and slidably connected to the end of the right-angle column 27 away from the first connecting column 26, and two circular partitions 29 are fixedly connected to the outer side of the short column 28.

[0071] A gear 30 is fixedly connected to the left side of the short column 28 through a connecting column, and a long gear 31 is meshed and slidably connected to the lower end of the gear 30. An arc plate 32 is inserted and slidably connected between the two circular partitions 29. A first connecting plate 33 is fixedly connected to the upper end surface of the arc plate 32, and a sliding groove is provided on the fixed plate 11. The first connecting plate 33 passes through the sliding groove provided on the fixed plate 11 and is slidably connected to the fixed plate 11. The upper end surface of the first connecting plate 33 is rotatably connected to the second connecting plate 34, and the second connecting plate 34 is rotatably connected to a slider 35 at one end away from the first connecting plate 33. A screw 36 is inserted and rotatably connected to the center of the upper end surface of the slitting machine body 1, and the screw 36 is threadedly connected to the slider 35. The upper end surface of the screw 36 is fixedly connected to the handle 6, and a fan blade 37 is fixedly connected to the inner side of the gear ring 12.

[0072] The working principle of this embodiment is:

[0073] First, when cutting the copper strip, dust is generated. When the first bevel gear 25 rotates, the first connecting column 26 is driven to rotate through the right-angle column 27 to drive the short column 28 to rotate. The connecting column drives the gear 30 to rotate, which drives the long gear 31 to rotate, and the gear ring 12 drives the fan blade 37 to rotate synchronously. The rotation of the fan blade 37 drives the dust in the air inside the inlet 2 into the inside of the second inner cavity 9. Then, the water pump 16 is turned on to make its nozzle 15 spray water, so that the dust in the air inside the second inner cavity 9 is in contact with the water.

[0074] Second, the water falls on the inner side of the filter box 14 and is filtered and screened by the filter net at the bottom, leaving the dust inside the filter box 14. The water passes through the filter box 14 and falls into the inner bottom ends of the left and right sides of the second inner cavity 9. Then, it is extracted through the connecting pipe and the water pump 16 and sprayed out from the nozzle 15 for repeated use. Then, the filter box 14 can be extracted for collection and recycling. At the same time, when the heat generated during cutting is transferred to the surrounding air, the fan blades 37 drive the air into the second inner cavity 9 to take away the heat. At the same time, the water sprayed by the nozzle 15 can also absorb the heat in the air to achieve a cooling effect.

[0075] Third, when it is necessary to adjust the width of the copper strip during stripping, the handle 6 is rotated forward or reversely to drive the screw 36 to rotate and drive the slider 35 to move up and down. At the same time, the first connecting plate 33 is pulled on the fixed plate 11 by the second connecting plate 34, and the arc plate 32 is driven to pass through the obstruction of the circular partition 29, and the circular partition 29 is relatively driven to move and drive the short column 28 to move left or right. At this time, the gear 30 will slide on the long gear 31, and the short column 28 moves through the right-angle column 27 to drive the first connecting column 26 to move, and drive the C-shaped plate 24 to move, while synchronously driving the second bevel gear 19, the third bevel gear 21, the column 22, and the blade 23 to move on the outer side of the long rod 17, which can also achieve quick adjustment and simple operation.

[0076] The present invention provides a copper strip processing and slitting machine with dust blowing and heat dissipation functions through improvement. When dust is generated during the copper strip slitting, the small motor 10 is turned on to drive the blade 23 to cut the copper strip, and the gear ring 12 and the fan blade 37 are synchronously driven to rotate. The fan blade 37 drives the air inside the inlet 2 to enter the inside of the second inner cavity 9. By turning on the water pump 16 and allowing the nozzle 15 to spray water, the dust in the air is brought into contact with the water. The dust is collected by falling on the inside of the filter box 14 due to gravity for filtering and screening. At the same time, when temperature is generated during the cutting of the copper strip, the surrounding air enters the second inner cavity 9 and transfers heat by contacting with the water, so that relative cooling can be achieved. Synchronously, when the copper strip slitting width needs to be adjusted, the operation can be quickly and simply achieved by turning the handle 6.

[0077] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0078] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A copper strip processing slitting machine with dust blowing and heat dissipation function, comprising a slitting machine body (1), an inlet (2) arranged at the bottom of the front end surface of the slitting machine body (1), a U-shaped long bottom plate (3) fixedly connected to the inlet (2) at the bottom of the front end surface of the slitting machine body (1), a guide wheel (4) rotatably connected to the inner side of the upper end of the U-shaped long bottom plate (3), and an outlet (5) arranged at the bottom of the rear end surface of the slitting machine body (1); Features: Also includes: A rotating handle (6), the upper end surface center of the slitting machine body (1) is rotatably connected with the rotating handle (6); A stripping device (7) is provided, and the left and right end surfaces inside the inlet (2) are rotatably connected with the stripping device (7).

2. According to claim 1, a copper strip processing slitting machine with dust blowing and heat dissipation function, characterized in that: The slitting machine body (1) comprises: A first inner cavity (8), wherein the first inner cavity (8) is provided inside the slitting machine body (1); A second inner cavity (9), wherein the second inner cavity (9) is provided below the first inner cavity (8) inside the slitting machine body (1); A small motor (10), the small motor (10) being fixedly connected to the left and right ends of the slitting machine body (1); A fixing plate (11), wherein the first inner cavity (8) is fixedly connected with the fixing plate (11).

3. According to claim 2, a copper strip processing slitting machine with dust blowing and heat dissipation function, characterized in that: The slitting machine body (1) also includes: Gear rings (12), two gear rings (12) are rotatably connected inside the second inner cavity (9); A partition (13), the inner side of the second inner cavity (9) is fixedly connected with the partition (13); A filter box (14), the front end surface of the slitting machine body (1) is inserted into and slidably connected with the filter box (14), and the filter box (14) is inserted into the inner side of the second inner cavity (9) and slidably connected with the partition plate (13); A spray head (15), the spray heads (15) are fixedly connected to the upper end surfaces on the left and right sides of the second inner cavity (9).

4. According to claim 3, a copper strip processing slitting machine with dust blowing and heat dissipation function, characterized in that: The slitting machine body (1) also includes: A water pump (16), wherein the water pump (16) is fixedly connected to the interior of the slitting machine body (1), and the bottom of the left and right end surfaces inside the second inner cavity (9) and the nozzle (15) are connected to the water pump (16) via a connecting pipe; A long rod (17), the left and right end surfaces of the inner side of the inlet (2) are inserted and rotatably connected with the long rod (17), and the left and right end surfaces of the long rod (17) are fixedly connected to the output end of the small motor (10); A slide groove (18), wherein the slide grooves (18) are provided at the left and right ends of the outer side surface of the long rod (17); The second bevel gear (19) is slidably connected to the left and right ends of the long rod (17), and the second bevel gear (19) is located at the slide groove (18) and is slidably connected to the slide groove (18).

5. The copper strip processing slitting machine with dust blowing and heat dissipation function according to claim 4, characterized in that: The slitting machine body (1) also includes: A clamping block (20), wherein the inner side of the second bevel gear (19) is fixedly connected with the clamping block (20), and the clamping block (20) is located inside the slide groove (18) and is slidably connected with the slide groove (18); A third bevel gear (21), the third bevel gear (21) passing through the long rod (17) and being slidably connected thereto; A column cylinder (22), the long rod (17) is penetrated by the column cylinder (22) and is slidably connected thereto, and the third bevel gear (21) and the column cylinder (22) are fixedly connected to each other; A blade (23) is fixedly connected at the center of the outer side surface of the long rod (17) and the right side surface of the column (22) respectively.

6. The copper strip processing slitting machine with dust blowing and heat dissipation function according to claim 5, characterized in that: The slitting machine body (1) also includes: A C-shaped plate (24), the left side surface of the second bevel gear (19) and the outer side surface of the column (22) are rotatably connected to the C-shaped plate (24); A first bevel gear (25), wherein the second bevel gear (19) is meshingly connected with the third bevel gear (21); A first connecting column (26), the upper end surface of the first bevel gear (25) being fixedly connected to the first connecting column (26); A right-angle column (27), wherein the upper end surface of the first connecting column (26) is inserted and slidably connected with three right-angle columns (27).

7. The copper strip processing slitting machine with dust blowing and heat dissipation function according to claim 6, characterized in that: The slitting machine body (1) also includes: A short column (28), wherein one end of the right-angle column (27) away from the first connecting column (26) is inserted and slidably connected with the short column (28); Circular baffles (29), two circular baffles (29) are fixedly connected to the outer side surface of the short column (28); A gear (30), the left side of the short column (28) is fixedly connected to the gear (30) via a connecting column; A long gear (31), the lower end of the gear (30) is meshed and slidably connected with the long gear (31); An arc plate (32) is inserted and slidably connected between the two circular partitions (29).

8. The copper strip processing slitting machine with dust blowing and heat dissipation function according to claim 7, characterized in that: The slitting machine body (1) also includes: A first connecting plate (33), the upper end surface of the arc plate (32) is fixedly connected with the first connecting plate (33), and a sliding groove is provided on the fixed plate (11), and the first connecting plate (33) passes through the sliding groove provided on the fixed plate (11) and is slidably connected with the fixed plate (11); A second connecting plate (34), the upper end surface of the first connecting plate (33) being rotatably connected to the second connecting plate (34); A slider (35), wherein the second connecting plate (34) is rotatably connected to one end thereof away from the first connecting plate (33); A screw rod (36) is inserted into the center of the upper end surface of the slitting machine body (1) and is rotatably connected thereto, and a slider (35) is threadedly connected through the screw rod (36), and the upper end surface of the screw rod (36) is fixedly connected to the rotating handle (6); The fan blade (37) is fixedly connected to the inner side of the gear ring (12).

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