CN112981013B

CN112981013B - Leather wet finishing device for improving poor leather position problem

Info

Publication number: CN112981013B
Application number: CN202110215921.XA
Authority: CN
Inventors: 沈波
Original assignee: Shandong Yangxin County Hongli Leather Products Co ltd
Current assignee: Shandong Yangxin County Hongli Leather Products Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-09-02
Anticipated expiration: 2041-02-26
Also published as: CN112981013A

Abstract

The invention discloses a leather wet finishing device for improving the problem of leather position difference, which comprises a horizontally arranged bottom plate, wherein the bottom plate is in a round-angle rectangular shape, the edge of the upper surface of the bottom plate is fixedly connected with a semi-round-angle rectangular-shaped sealing plate, one end of the sealing plate is vertically provided with a door plate, the door plate is in a semicircular shape, the door plate is matched with the sealing plate, the shape of the door plate is the same as that of the outer ring of the bottom plate when the door plate and the sealing plate are closed, the door plate is rotatably connected with the sealing plate through a plurality of hinges, a plurality of support columns are vertically arranged below the bottom plate, the support columns are all fixedly connected with the bottom surface of the bottom plate, and an exhaust fan is horizontally arranged below the bottom plate. The leather is fixed by the aid of the suckers, so that no assembly on the surface of the leather blocks cutting, scraps produced by machining can be cleaned by the suckers, the leather is simple, convenient and efficient, and the leather is subjected to secondary machining by the aid of the grinding rollers, so that the surface of the leather is smoother and better in quality.

Description

Leather wet finishing device for improving poor leather position problem

Technical Field

The invention relates to the technical field of leather finishing, in particular to a leather wet finishing device for improving the problem of poor leather position.

Background

The leather is animal skin which is obtained by physical and chemical processing such as unhairing, tanning and the like and is denatured and non-perishable. The leather is formed by tightly weaving natural protein fibers in a three-dimensional space, a special grain surface layer is arranged on the surface of the leather, the leather has natural grains and luster, the hand feeling is comfortable, in the process of human evolution, juice or mineral oil of some plants has certain tanning property on the leather, and the raw leather has air permeability and corrosion resistance by being soaked in the juice, so that the plate has physical and chemical properties of softness, tear resistance, bending resistance and the like.

In order to solve the above problems, a wet leather finishing device is proposed which solves the problem of poor leather position because the conventional leather finishing device has dead corners in the fixing manner and is not favorable for the cutting of the leather, because the leather needs to be cut due to the difference in thickness between different parts of the body of the robot during the manufacturing and finishing.

Disclosure of Invention

The invention aims to solve the problem that the leather in the prior art has different thicknesses due to position difference, and provides a leather wet finishing device for improving the position difference problem of the leather.

In order to achieve the purpose, the invention adopts the following technical scheme:

a leather wet finishing device for improving the problem of leather position difference comprises a horizontally arranged bottom plate, wherein the bottom plate is in a round-angle rectangular shape, the edge of the upper surface of the bottom plate is fixedly connected with a semi-round-angle rectangular-shaped sealing plate, one end of the sealing plate is vertically provided with a door plate, the door plate is in a semicircular shape, the door plate is matched with the sealing plate, the shape of the door plate is the same as that of the outer ring of the bottom plate when the door plate and the sealing plate are closed, the door plate is rotatably connected with the sealing plate through a plurality of hinges, a plurality of support columns are vertically arranged below the bottom plate and are all fixedly connected with the bottom surface of the bottom plate, an exhaust fan is horizontally arranged below the bottom plate and is fixedly connected with the lower surface of the bottom plate through two vertically arranged fixed plates, a plurality of first guide pipes are fixedly connected with the upper surface of the exhaust fan, and one end, far away from the exhaust fan, of the first guide pipes, is fixedly connected with a horn-shaped sucking disc, the sucking discs penetrate through and are fixedly connected with the bottom plate, the sucking discs are arranged horizontally, the upper surfaces of the sucking discs are flush with the upper surface of the bottom plate, the sucking discs are distributed in a circular shape, a top plate is horizontally arranged above the bottom plate and is fixedly connected with the upper surface of the bottom plate through a plurality of vertically arranged fixing columns, the lower surface of the top plate is fixedly connected with a vertically arranged first air cylinder, the bottom end of the first air cylinder is fixedly connected with a horizontally arranged first connecting plate, the bottom surface of the first connecting plate is fixedly connected with a vertically arranged baffle plate, the baffle plate is positioned at one end far away from the sucking discs, one side of the baffle plate, which faces the sucking discs, is fixedly connected with a horizontally arranged second air cylinder, one end of the second air cylinder, which faces the sucking discs, is fixedly connected with a horizontally arranged second connecting plate, and the lower surface of the second connecting plate is connected with a cutting mechanism, the upper surface of the second connecting plate is fixedly connected with two vertically-arranged sliding plates, the two sliding plates are both in sliding connection with the bottom surface of the first connecting plate, and the two sliding plates are parallel and level to the two sides of the first connecting plate respectively.

Preferably, cutting mechanism includes the cutting motor with second connecting plate bottom surface fixed connection, cutting motor below level is provided with the cutting dish, the cutting dish cross-section is isosceles trapezoid, the axle fixedly connected with fixed block of cutting motor, the installation piece of two vertical settings of fixed surface connection on the cutting dish, two the installation piece runs through the fixed block and sliding connection with it, two the installation piece is through a plurality of screws and fixed block fixed connection.

Preferably, a third cylinder is vertically arranged on one side of the first cylinder and is fixedly connected with the bottom surface of the top plate, a horizontal third connecting plate is horizontally arranged and is fixedly connected with the bottom surface of the third cylinder, a polishing motor is fixedly connected with the bottom surface of the third connecting plate, a connecting block is fixedly connected with a shaft of the polishing motor, and the connecting block is detachably connected with a horizontally arranged polishing roller.

Preferably, the first connecting plate is provided with a slot, the slot is square, and the length of the slot is greater than that of the grinding roller.

Preferably, the bottom surface of the bottom plate is fixedly connected with a collecting groove body which is funnel-shaped and surrounds the exhaust fan.

Preferably, a supporting plate is horizontally arranged below the collecting tank body, the supporting plate is fixedly connected with the supporting columns, the collecting box is placed on the upper surface of the supporting plate, clamping pieces are arranged at four corners of the outer side of the collecting box and are fixedly connected with the upper surface of the supporting plate, and the clamping pieces are in contact with the collecting box in a propping mode.

Preferably, the clamping piece is L-shaped, and the caliber of the collecting box is larger than that of the lower end of the collecting groove body.

Preferably, one side of the sealing plate is fixedly connected with a first sealing block, one side of the door plate is fixedly connected with a second sealing block, the first sealing block is abutted against the second sealing block, and the first sealing block is fixedly connected with the second sealing block through a screw rod.

Preferably, the shrouding outside level is provided with the backup pad, backup pad and bottom plate fixed connection, fixed surface is connected with the air-blower in the backup pad, the shrouding inboard is provided with the tuyere, the tuyere passes through second pipe and air-blower fixed connection, the second pipe runs through the shrouding and fixed connection with it.

Compared with the prior art, the invention has the beneficial effects that:

1. drive the sucking disc through setting up the air exhauster and carry out work, utilize the sucking disc will adsorb on the bottom plate through the leather after water treatment, replace traditional centre gripping or extrusion fixed, do not have the dead angle that centre gripping or extrusion subassembly produced like this for the cutting of leather is more convenient, and the cutting is more level and more smooth, and the quality after the leather is handled is better.

2. The grinding roller is driven to rotate by the aid of the arranged grinding motor, the surface of the leather after cutting is ground, small fragments reserved on the surface of the leather are taken out, the surface of the leather is smoother, the thickness of the whole leather is more consistent, and the quality of the leather is improved.

3. Through setting up the air exhauster, not only drive sucking disc work and inhale the leather tightly fixed, the piece that produces the operation after the cutting was polished simultaneously is inhaled and is collected the cell body, again via collecting the cell body and getting into to collect and the box, sets up the air-blower simultaneously and bloies, blows near the sucking disc with the piece, and the help sucking disc carries out the piece and collects for the piece is collected convenient high-efficient more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is a schematic view of the cross-sectional structure of FIG. 1 taken along the direction A-A;

FIG. 6 is a schematic view of the cross-sectional structure of FIG. 1 taken along the direction B-B;

FIG. 7 is an enlarged view of the portion C of FIG. 1 according to the present invention;

fig. 8 is an enlarged schematic view of a portion D in fig. 1 according to the present invention.

In the figure: 1. a base plate; 2. closing the plate; 3. a door panel; 4. a hinge; 5. a support pillar; 6. an exhaust fan; 7. a fixing plate; 8. a first conduit; 9. a suction cup; 10. a top plate; 11. fixing a column; 12. a first cylinder; 13. a first connecting plate; 14. a baffle plate; 15. a second cylinder; 16. a second connecting plate; 17. a cutting mechanism; 18. a sliding plate; 19. cutting the motor; 20. a cutting disc; 21. a fixed block; 22. mounting a sheet; 23. a screw; 24. a third cylinder; 25. a third connecting plate; 26. polishing the motor; 27. a joining block; 28. grinding a roller; 29. grooving; 30. a collecting tank body; 31. a support plate; 32. a collection box; 33. a clamping member; 34. a first closing block; 35. a second closing block; 36. a screw; 37. a support plate; 38. a blower; 39. a tuyere; 40. a second conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

embodiment one, as shown in fig. 1-8, a leather wet finishing device for improving the problem of poor leather position comprises a horizontally arranged bottom plate 1, wherein the bottom plate 1 is in a round rectangular shape, a semi-round rectangular sealing plate 2 is fixedly connected to the edge of the upper surface of the bottom plate 1, a door plate 3 is vertically arranged at one end of the sealing plate 2, the sealing plate 2 and the door plate 3 are matched to seal the space above the bottom plate 1 to prevent scraps generated during processing from flying out and facilitate cleaning and recovery of the scraps, the door plate 3 is in a semi-circular shape, the door plate 3 and the sealing plate 2 are matched, the shape of the door plate 3 and the outer ring of the bottom plate 1 is the same when the sealing plate 2 is closed, the door plate 3 is rotatably connected with the sealing plate 2 through a plurality of hinges 4, a plurality of support columns 5 are vertically arranged below the bottom plate 1, the plurality of support columns 5 are all fixedly connected with the bottom surface of the bottom plate 1, an exhaust fan 6 is horizontally arranged below the bottom plate 1, the exhaust fan 6 drives a suction cup 9 to work, utilize sucking disc 9 to fix the leather, replace traditional centre gripping or extrusion fixed, there is not the dead angle, more be favorable to the cutting process of leather, sucking disc 9 can be used for drawing away the piece that processing produced simultaneously, realize the automatic clearance to the piece, it is convenient and reliable, air exhauster 6 is connected with bottom plate 1 lower fixed surface through two vertical fixed plates 7, many first pipes 8 of fixed surface connection on air exhauster 6, many first pipes 8 of one end far away from air exhauster 6 all fixedly connected with loudspeaker form 1 sucking disc 9, many sucking discs 9 all run through bottom plate 1 and fixedly connected with it, many sucking discs 9 are all horizontally arranged, many sucking discs 9 upper surfaces all level with bottom plate 1 upper surface, many sucking discs 9 are the circular distribution, bottom plate 1 upper level is provided with roof 10, roof 10 is connected with bottom plate 1 upper surface fixed through many vertical fixed column 11 that set up, the lower fixed surface of the top plate 10 is connected with a first cylinder 12 vertically arranged, the bottom end of the first cylinder 12 is fixedly connected with a first connecting plate 13 horizontally arranged, the bottom surface of the first connecting plate 13 is fixedly connected with a baffle 14 vertically arranged, the first cylinder 12 is used for controlling the up-and-down movement of a cutting disc 20, the second cylinder 15 is used for controlling the left-and-right movement of the cutting disc 20, the baffle 14 is positioned at one end far away from a suction disc 9, the baffle 14 is fixedly connected with a second cylinder 15 horizontally arranged towards one side of the suction disc 9, the second cylinder 15 is fixedly connected with a second connecting plate 16 horizontally arranged towards one end of the suction disc 9, the lower surface of the second connecting plate 16 is connected with a cutting mechanism 17, the upper surface of the second connecting plate 16 is fixedly connected with two sliding plates 18 vertically arranged, the two sliding plates 18 are both connected with the bottom surface of the first connecting plate 13 in a sliding manner, and the two sliding plates 18 are respectively parallel and level with the two sides of the first connecting plate 13.

In the second embodiment, as shown in fig. 1-3, 6, and 8, the cutting mechanism 17 includes a cutting motor 19 fixedly connected to the bottom surface of the second connecting plate 16, a cutting disc 20 is horizontally disposed below the cutting motor 19, the cross section of the cutting disc 20 is isosceles trapezoid, a fixing block 21 is fixedly connected to a shaft of the cutting motor 19, two vertically disposed mounting plates 22 are fixedly connected to the upper surface of the cutting disc 20, the two mounting plates 22 penetrate through the fixing block 21 and are slidably connected to the fixing block 21, the two mounting plates 22 are fixedly connected to the fixing block 21 through a plurality of screws 23, the cutting motor 19 drives the cutting disc 20 to rotate, the cutting disc 20 is used to cut leather, so that the leather has a consistent thickness, the mounting plates 22 cooperate with the fixing block 21 and the screws 23 to achieve the mounting of the cutting disc 20, so that the cutting disc 20 is more easily and conveniently detached and mounted, and the bottom surface of the cutting disc 20 has no other components, the cutting disc 20 can be tightly attached to the bottom plate 1, the cutting thickness is easier to control, and the device has stronger functions.

In the third embodiment, as shown in fig. 1-3 and 6, a third cylinder 24 is vertically arranged on one side of the first cylinder 12, the third cylinder 24 is fixedly connected with the bottom surface of the top plate 10, a horizontally arranged third connecting plate 25 is fixedly connected with the bottom surface of the third cylinder 24, a polishing motor 26 is fixedly connected with the bottom surface of the third connecting plate 25, an engaging block 27 is fixedly connected with a shaft of the polishing motor 26, a horizontally arranged polishing roller 28 is detachably connected with the engaging block 27, the polishing motor 26 drives the polishing roller 28 to rotate, and the third cylinder 24 drives the polishing roller 28 to be close to the leather to polish the leather, so that the surface of the leather is smoother and smoother.

In the fourth embodiment, as shown in fig. 1 and 6, the first connecting plate 13 is provided with a slot 29, the slot 29 is square, the length of the slot 29 is greater than that of the grinding roller 28, and the slot 29 provides a movement space for the vertical movement of components such as the grinding motor 26 and the like, so that the function of the device is ensured to be realized.

In the fifth embodiment, as shown in fig. 1-3, a collecting trough 30 is fixedly connected to the bottom surface of a bottom plate 1, the collecting trough 30 is funnel-shaped, the exhaust fan 6 is enclosed by the collecting trough 30, a support plate 31 is horizontally arranged below the collecting trough 30, the support plate 31 is fixedly connected to a plurality of support columns 5, a collecting box 32 is placed on the upper surface of the support plate 31, clamping members 33 are respectively arranged at four corners of the outer side of the collecting box 32, the clamping members 33 are respectively fixedly connected to the upper surface of the support plate 31, the clamping members 33 are respectively abutted to the collecting box 32, the clamping members 33 are L-shaped, the caliber of the collecting box 32 is larger than that of the lower end of the collecting trough 30, the collecting trough 30 and the collecting box 32 are used for collecting chips generated by processing, so as to realize the recovery of the chips, the collecting box 32 is placed on the support plate 31, and the clamping piece 33 is used for auxiliary fixation, so that the collection box 32 is more convenient and simpler to take and place.

In a sixth embodiment, as shown in fig. 2 to 5, a first sealing block 34 is fixedly connected to one side of the sealing plate 2, a second sealing block 35 is fixedly connected to one side of the door panel 3, the first sealing block 34 contacts with the second sealing block 35 in an abutting manner, the first sealing block 34 is fixedly connected to the second sealing block 35 through a screw 36, and the first sealing block 34 and the second sealing block 35 cooperate with the screw 36 to enable the door panel 3 to be tightly closed, so as to prevent chips generated during processing from flying out.

Seventh embodiment, as shown in fig. 1, 2, and 5, a support plate 37 is horizontally disposed on the outer side of the sealing plate 2, the support plate 37 is fixedly connected to the bottom plate 1, a blower 38 is fixedly connected to the upper surface of the support plate 37, a blower 39 is disposed on the inner side of the sealing plate 2, the blower 39 is fixedly connected to the blower 38 through a second conduit 40, the second conduit 40 penetrates through the sealing plate 2 and is fixedly connected to the sealing plate 2, the support plate 37 provides an installation space for installing the blower 38, the blower 38 drives the blower 39 to blow air out through the blower 39, and blows the debris above the bottom plate 1 to the vicinity of the suction cup 9 to help the suction cup 9 to clean the debris, so that the debris cleaning effect of the device is better, and the efficiency is higher.

The working principle is as follows: firstly, putting leather into water and a zwitterionic polymer, rotating and soaking for 30-60 minutes, adjusting the pH value by sodium formate, controlling the pH value to be 4.0-4.2, soaking and squeezing for dehydration, then taking down a screw 36, opening a door plate 3, unfolding the leather and placing the leather above a plurality of suckers 9, controlling to start an exhaust fan 6, driving the suckers 9 to work by the exhaust fan 6, sucking and fixing the leather on the upper surface of a bottom plate 1, then closing the door plate 3, fixedly locking the door plate by the screw 36, then controlling to start a first cylinder 12, indirectly driving a cutting disc 20 to move downwards by the extension of the first cylinder 12, controlling the cutting disc 20 to move to a target height, then controlling to start a cutting motor 19 and a second cylinder 15, driving the cutting disc 20 to rotate by the cutting motor 19, driving a second connecting plate 16 to move rightwards by the extension of the second cylinder 15, driving the rotating cutting disc 20 to move rightwards by a sister, the cutting disc 20 moves rightwards to cut the leather, the thickness is reduced, the thickness of the leather becomes uniform, the cutting motor 19 is turned off after the cutting is finished, the first air cylinder 12 and the second air cylinder 15 are controlled to reset, then the third air cylinder 24 is controlled to start, the third air cylinder 24 extends to indirectly drive the grinding roller 28 to move downwards, the grinding roller 28 is in contact with the leather in an abutting mode, then the grinding motor 26 is controlled to start, the grinding motor 26 drives the grinding roller 28 to rotate to grind the upper surface of the leather, the grinding motor 26 is controlled to turn off after the grinding is finished, the third air cylinder 24 is controlled to reset, at the moment, the air blower 38 is controlled to start, the air blower 38 drives the air outlet 39 to blow out air, scraps on the upper surface of the bottom plate 1 to be near the suction disc 9, the scraps enter the collection groove body 30 through the suction disc 9 and then enter the collection box 32, at the moment, the air blower 38 and the exhaust fan 6 are turned off, the screw 36 is taken down to open the door panel 3, and taking out the processed leather.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an improve wet finishing device of leather of poor problem in leather position, includes bottom plate (1) that the level set up, its characterized in that: the bottom plate (1) is in a round-angle rectangular shape, the edge of the upper surface of the bottom plate (1) is fixedly connected with a semi-round-angle rectangular-shaped sealing plate (2), one end of the sealing plate (2) is vertically provided with a door plate (3), the door plate (3) is in a semi-circular shape, the door plate (3) is matched with the sealing plate (2), the shape of the door plate (3) is the same as that of the outer ring of the bottom plate (1) when the door plate (3) and the sealing plate (2) are closed, the door plate (3) is rotatably connected with the sealing plate (2) through a plurality of hinges (4), a plurality of support columns (5) are vertically arranged below the bottom plate (1), the plurality of support columns (5) are fixedly connected with the bottom surface of the bottom plate (1), an exhaust fan (6) is horizontally arranged below the bottom plate (1), and the exhaust fan (6) is fixedly connected with the lower surface of the bottom plate (1) through two vertically arranged fixing plates (7), the upper surface of the exhaust fan (6) is fixedly connected with a plurality of first guide pipes (8), one ends of the first guide pipes (8) far away from the exhaust fan (6) are fixedly connected with sucking discs (9) in a horn shape 1, a plurality of sucking discs (9) penetrate through the bottom plate (1) and are fixedly connected with the bottom plate, the sucking discs (9) are horizontally arranged, the upper surfaces of the sucking discs (9) are flush with the upper surface of the bottom plate (1), the sucking discs (9) are circularly distributed, a top plate (10) is horizontally arranged above the bottom plate (1), the top plate (10) is fixedly connected with the upper surface of the bottom plate (1) through a plurality of vertically arranged fixing columns (11), the lower surface of the top plate (10) is fixedly connected with a vertically arranged first cylinder (12), and the bottom end of the first cylinder (12) is fixedly connected with a horizontally arranged first connecting plate (13), the bottom surface of the first connecting plate (13) is fixedly connected with a vertically arranged baffle plate (14), the baffle plate (14) is positioned at one end far away from the sucker (9), one side of the baffle plate (14) facing the sucker (9) is fixedly connected with a horizontally arranged second air cylinder (15), one end of the second air cylinder (15) facing the sucker (9) is fixedly connected with a horizontally arranged second connecting plate (16), the lower surface of the second connecting plate (16) is connected with a cutting mechanism (17), the upper surface of the second connecting plate (16) is fixedly connected with two vertically arranged sliding plates (18), the two sliding plates (18) are both in sliding connection with the bottom surface of the first connecting plate (13), and the two sliding plates (18) are flush with the two sides of the first connecting plate (13) respectively;

the cutting mechanism (17) comprises a cutting motor (19) fixedly connected with the bottom surface of the second connecting plate (16), a cutting disc (20) is horizontally arranged below the cutting motor (19), the section of the cutting disc (20) is isosceles trapezoid, a fixing block (21) is fixedly connected with a shaft of the cutting motor (19), two vertically arranged mounting pieces (22) are fixedly connected with the upper surface of the cutting disc (20), the two mounting pieces (22) penetrate through and are in sliding connection with the fixing block (21), and the two mounting pieces (22) are fixedly connected with the fixing block (21) through a plurality of screws (23);

a third air cylinder (24) is vertically arranged on one side of the first air cylinder (12), the third air cylinder (24) is fixedly connected with the bottom surface of the top plate (10), a horizontal third connecting plate (25) is fixedly connected with the bottom surface of the third air cylinder (24), a grinding motor (26) is fixedly connected with the bottom surface of the third connecting plate (25), a connecting block (27) is fixedly connected with a shaft of the grinding motor (26), and a grinding roller (28) which is horizontally arranged is detachably connected with the connecting block (27);

the bottom surface of the bottom plate (1) is fixedly connected with a collecting groove body (30), the collecting groove body (30) is funnel-shaped, and the exhaust fan (6) is surrounded by the collecting groove body (30);

a supporting plate (31) is horizontally arranged below the collecting tank body (30), the supporting plate (31) is fixedly connected with the supporting columns (5), a collecting box (32) is placed on the upper surface of the supporting plate (31), clamping pieces (33) are arranged at four corners of the outer side of the collecting box (32), the clamping pieces (33) are fixedly connected with the upper surface of the supporting plate (31), and the clamping pieces (33) are in contact with the collecting box (32) in a propping manner;

the clamping piece (33) is L-shaped, and the caliber of the collecting box (32) is larger than that of the lower end of the collecting groove body (30);

a first sealing block (34) is fixedly connected to one side of the sealing plate (2), a second sealing block (35) is fixedly connected to one side of the door plate (3), the first sealing block (34) is abutted against the second sealing block (35), and the first sealing block (34) is fixedly connected with the second sealing block (35) through a screw (36);

a supporting plate (37) is horizontally arranged on the outer side of the sealing plate (2), the supporting plate (37) is fixedly connected with the bottom plate (1), an air blower (38) is fixedly connected to the upper surface of the supporting plate (37), a blast port (39) is arranged on the inner side of the sealing plate (2), the blast port (39) is fixedly connected with the air blower (38) through a second conduit (40), and the second conduit (40) penetrates through the sealing plate (2) and is fixedly connected with the same;

when the leather cutting machine is used, leather is firstly put into water and a zwitterionic polymer, the leather is rotated and soaked for 30-60 minutes, the PH value is adjusted by sodium formate, the PH value is controlled to be 4.0-4.2, the leather is soaked for extrusion and dehydration, then the screw rod 36 is taken down, the door plate 3 is opened, the leather is unfolded and placed above the plurality of suckers 9, the exhaust fan 6 is controlled to be started, the suction fan 6 drives the suckers 9 to work, the leather is sucked and fixed on the upper surface of the bottom plate 1, then the door plate 3 is closed and fixedly locked by the screw rod 36, then the first air cylinder 12 is controlled to be started, the first air cylinder 12 is extended to indirectly drive the cutting disc 20 to move downwards, the cutting disc 20 is controlled to move to a target height, then the cutting motor 19 and the second air cylinder 15 are controlled to be started, the cutting motor 19 drives the cutting disc 20 to rotate, the second air cylinder 15 is extended to drive the second connecting plate 16 to move rightwards, and drive the rotating cutting disc 20 to move rightwards, the cutting disc 20 moves rightwards to cut the leather, the thickness is reduced, the thickness of the leather becomes uniform, the cutting motor 19 is closed after the cutting is finished, the first air cylinder 12 and the second air cylinder 15 are controlled to reset, then the third air cylinder 24 is controlled to start, the third air cylinder 24 extends to indirectly drive the grinding roller 28 to move downwards, the grinding roller 28 is enabled to be in contact with the leather in an abutting mode, then the grinding motor 26 is controlled to start, the grinding motor 26 drives the grinding roller 28 to rotate to grind the upper surface of the leather, the grinding motor 26 is controlled to close after the grinding is finished, the third air cylinder 24 is controlled to reset, at the moment, the air blower 38 is controlled to start, the air blower 38 drives the air outlet 39 to blow out air, the scraps on the upper surface of the bottom plate 1 are blown to the vicinity of the suction disc 9, the scraps enter the collection groove body 30 through the suction disc 9 and then enter the collection box 32, at the moment, the air blower 38 and the exhaust fan 6 are closed, the door plate 3 is opened by taking down the screw rod 36, and taking out the processed leather.

2. The wet finishing device for leather to improve the problem of poor leather position as claimed in claim 1, wherein: a groove (29) is formed in the first connecting plate (13), the groove (29) is square, and the length of the groove (29) is larger than that of the grinding roller (28).