CN114921595A

CN114921595A - Cow leather sofa leather manufacturing process

Info

Publication number: CN114921595A
Application number: CN202210568098.5A
Authority: CN
Inventors: 周金法; 同晨博
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-19

Abstract

The invention discloses a manufacturing process of cow leather sofa leather, which comprises the following steps: batching; soaking in water; unhairing and degreasing; liming: liming; deliming and pickling; tanning; retanning; dyeing; fat liquoring; drying; softening; measuring leather; coating; the drying equipment in the step ten comprises a support, wherein an oven is fixedly connected to the support, the interior of the oven is hollow, one side of the oven is communicated with the outside, a cabinet door is rotatably connected to the inner wall of the side, communicated with the outside, of the oven, a ventilating mechanism for ventilating hot air into the oven is arranged on the side wall of the oven, a plurality of placing plates are arranged between the inner walls of the two sides of the oven, and a jacking mechanism for jacking the leather through air is arranged on the placing plates; the leather breaks away from and places net and jacking rod for the upper and lower two sides of leather are dried simultaneously, have improved the drying efficiency to the leather.

Description

Manufacturing process of cow leather sofa leather

Technical Field

The invention relates to the technical field of cow leather sofa leather production processes, in particular to a cow leather sofa leather manufacturing process.

Background

In ancient times, a sentence was spoken, "standing loose, sitting like a clock, walking like wind, lying down like a bow. The ancient people have high requirements on standing postures and sitting postures, and in modern life, people get back to home once busy, and after having dinner, people sit in a wide and comfortable leather sofa to enjoy happy and nice life. The leather sofa can fully relax the body, is popular due to the comfort and the softness of the leather sofa, and is slowly becoming the most main sitting and lying appliance for people to enjoy recreation and leisure nowadays. The exterior decoration of the leather sofa is mainly sofa leather, and the sofa leather needs to be treated by a plurality of procedures during processing, wherein the procedures comprise drying to remove moisture in the sofa leather.

Current drying equipment is in the use, and sofa leather is directly placed on placing the board, then will place the board and place and dry in the oven, and this kind of mode is because sofa leather with place the board contact for can't be fine carry out the drying to sofa leather.

Disclosure of Invention

The invention aims to: in order to solve the problems of the background art, a manufacturing process of cow leather sofa leather is provided.

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

a manufacturing process of cow leather sofa leather comprises the following steps:

step one, batching, namely classifying the original skins of the skins with relatively small width and thickness, and placing the classified original skins in the same drum for processing;

soaking in water, wherein the purpose of the working procedure is to restore the original skin to the fresh skin state;

step three, unhairing and degreasing: removing oil and fat in the cells in the skin and hair on the surface of the original skin to expose natural and fine grain surfaces;

step four, liming: liming, also known as alkali swelling, refers to the addition of alkali (to swell the hide to a certain thickness, facilitating splitting;

step five, deliming and pickling: the working procedure is to remove the redundant alkali in the previous liming process; adding proper acid to neutralize the excessive alkali and make it reach the pH value required by tanning;

step six, tanning: the trivalent chromium ions are utilized to connect the collagen groups of the leather fibers, so that the leather has a plump hand feeling and the tensile strength and the tear strength of the leather are enhanced;

seventhly, retanning;

step eight, dyeing: endowing the leather with certain color, and the key is to improve the combination rate of the dye and the leather fiber and improve the combination strength of the dye and the leather fiber;

step nine, fat adding: the greasing is also called as oiling, which is to carry out proper and reasonable greasing treatment on the crust leather, ensure that the crust leather absorbs proper amount of greasing materials, recover the softness and elasticity of the original industry, prevent the leather from stiff and cracking and endow the leather with certain service performance;

drying, namely drying the cowhide sofa leather by drying equipment;

step eleven, softening: the leather is pulled to the periphery on the toggling plate, and the leather is stretched as much as possible;

step twelve, measuring leather, namely measuring the leather through a leather measuring machine;

and thirteen, finishing.

The drying equipment in the step ten comprises a support, wherein an oven is fixedly connected to the support, the inside of the oven is hollow, one side of the oven is communicated with the outside, a cabinet door is connected to the inner wall, communicated with the outside, of one side of the oven in a rotating mode, a ventilation mechanism used for introducing hot air into the oven is arranged on the side wall of the oven, a plurality of placing plates are installed between the inner walls of the two sides of the oven, and a jacking mechanism used for jacking the leather through air is arranged on each placing plate.

On the basis of the above scheme and as a preferable scheme of the scheme: the ventilating mechanism comprises a heating box fixedly connected to the side wall of the oven, a heating pipe arranged on the inner wall of the heating box in a hollow mode, an air outlet pipe fixedly connected to the outer wall of the heating box, an air blower fixedly connected to the outer wall of the heating box and a blast pipe fixedly connected to an air outlet of the air blower, one end of the blast pipe is fixedly connected to the outer wall of the heating box and communicated with the inside of the heating box, and one end of the air outlet pipe is fixedly connected to the lower surface of the oven and communicated with the inside of the oven.

On the basis of the above scheme and as a preferable scheme of the scheme: the heating pipes are horizontally arranged and are fixedly connected with a plurality of heating pipes uniformly at intervals along the length direction of the heating box, one end, away from the air blower, of the blast pipe is located below the heating pipes, and one end, away from the drying oven, of the air outlet pipe is located above the heating pipes.

On the basis of the above scheme and as a preferable scheme of the scheme: a connecting mechanism is arranged between the heating pipe and the inner wall of the heating box, the connecting mechanism comprises a connecting pipe fixedly connected on the inner wall of the heating box, a connecting pipe fixedly connected on the outer wall of the heating pipe, an annular groove arranged on the inner wall of the connecting pipe, a connecting ring slidably connected in the annular groove, an internal thread arranged on the inner wall of the connecting ring, an external thread arranged on the outer wall of the connecting pipe, a first end face tooth fixedly connected on the inner wall of one side of the annular groove far away from the heating pipe, a second end face tooth fixedly connected on the side wall of one side of the connecting ring far away from the heating pipe and a connecting spring arranged in the connecting pipe, the internal thread is meshed with the external thread, one end of the connecting spring is fixedly connected on the inner wall of one end of the connecting pipe, the other end of the connecting spring is tightly supported on one end of the connecting pipe, the first end face tooth and the second end face tooth are separated under the action of restoring force of the connecting spring, the internal thread and the external thread are meshed.

On the basis of the above scheme and as a preferable scheme of the scheme: climbing mechanism includes along placing board width direction even interval install place board upper surface on the tedge, set up venthole, fixed connection in tedge one end breather pipe, fixed connection be served at the breather pipe branch balloon, the air-supply line of fixed connection on dividing the balloon outer wall at the tedge outer wall, the one end fixed connection of air-supply line is on the heating cabinet upper surface.

On the basis of the above scheme and as a preferable scheme of the scheme: place the board including placing frame and fixed connection place the net on placing the frame inner wall place the equal fixedly connected with montant in both sides of frame upper surface, an equal fixedly connected with standpipe on the outer wall of jacking pipe both ends, standpipe sliding connection has all seted up a gas blowing hole on the outer wall of jacking pipe both ends on the montant, and the gas blowing hole orientation is placed the frame upper surface and is set up.

On the basis of the above scheme and as a preferable scheme of the scheme: the installation groove has been seted up on placing the frame upper surface, the both sides of mounting groove with place frame inside and outside wall intercommunication, montant one end fixed connection is on the mounting groove bottom, the both ends of tedge are inlayed and are established in the mounting groove.

On the basis of the above scheme and as a preferable scheme of the scheme: the oven comprises an oven body, a plurality of placing rods are fixedly connected between the inner walls of the two sides of the oven body at intervals along the height direction of the inner walls of the oven body, an elongated slot is formed in the upper surface of each placing rod along the length direction of the corresponding placing rod, rollers are rotatably connected to the inner walls of the two sides of the elongated slot at intervals, the outer walls of the rollers exceed the upper surface of the placing rods, sliding grooves are formed in the lower surfaces of the two sides of a placing frame, the two ends of each sliding groove are communicated with the end faces of the two ends of the placing frame, the depth of each sliding groove is smaller than the distance between the rollers and the upper surface of the placing rod, and the rollers are abutted to the bottoms of the sliding grooves.

On the basis of the above scheme and as a preferable scheme of the scheme: the cabinet door is characterized in that a first ring is fixedly connected to the end face, close to the cabinet door, of the placing rod, a second ring is fixedly connected to the end face, close to the cabinet door, of the placing rod, and an L-shaped rod is connected to the first ring and the second ring in an inserting mode.

On the basis of the above scheme and as a preferable scheme of the scheme: be equipped with a connecting piece between branch balloon and the air-supply line, the connecting piece includes the long tube of fixed connection on the branch balloon outer wall, sets up the caulking groove on the long tube outer wall, slip and inlay ball, the drive cover of sliding connection on the long slot outer wall, the drive ring of fixed connection on the drive cover inner wall, set up the first screw thread on the drive ring inner wall, set up the second screw thread on the long tube outer wall and set up the spigot surface on a drive ring terminal surface, mesh between first screw thread and the second screw thread, the spigot surface is seted up to the ball, the one end sliding connection of air-supply line is on the long tube inner wall, the ball supports tightly on the air-supply line outer wall after sliding in the caulking groove.

The invention has the beneficial effects that:

1. lay the leather flat on placing the net, the jacking pipe is located the leather below, to place frame sliding connection on placing the pole, under the effect of gyro wheel, it slides to target in place to place the frame, the air-blower work, the air-blower passes through the blast pipe and lets in the air toward the heating box in, the air heats under the effect of heating rod, the air blows toward oven inside through the play tuber pipe, the air in the heating box lets in the tedge through the air-supply line, blow to the leather through the venthole, blow the leather, the leather breaks away from the jacking pole under the effect of the air that comes out in the venthole, through such setting, moreover, the steam generator is simple in structure, and convenient for operation, the leather breaks away from and places net and jacking pole, make the upper and lower two sides of leather dry simultaneously, the drying efficiency to the leather has been improved.

2. Through offering the mounting groove placing frame both sides upper surface, mounting groove one side with place frame inner wall intercommunication, the both ends of tedge are inlayed and are established in the mounting groove, in the air admission tedge, the air blows off from the gas hole, the air blows to the mounting groove tank bottom from the gas hole, under the effect of effort and reaction force, the standpipe slides on the montant, the tedge upwards slides, through such setting, moreover, the steam generator is simple in structure, and convenient for operation, the leather has been improved and the interval of placing between the net, further improved the drying efficiency to the leather.

3. The connecting pipe sliding connection who the heating pipe was one to be served presses the heating pipe in the connecting pipe for first terminal surface tooth and the meshing of second terminal surface tooth rotate the heating pipe, mesh between internal thread and the external screw thread, and the heating pipe is deconcentrated to internal thread and external screw thread meshing back, and under coupling spring's effect, first terminal surface tooth and second terminal surface tooth break away from, through such setting, simple structure, convenient operation has improved the stability that the heating pipe was installed on the heating cabinet inner wall.

4. Through set up the elongated slot on placing the pole upper surface, rotate between elongated slot both sides inner wall and be connected with the gyro wheel, the gyro wheel butt is on the tank bottom of spout, places frame sliding connection on the gyro wheel, through such setting, simple structure, convenient operation has improved and has placed the frame and place the stability on placing the pole.

5. The long pipe is fixed on the outer wall of the sub-balloon, one end of the air inlet pipe is connected to the inner wall of the long pipe in a sliding mode, the driving sleeve is rotated, the driving ring is driven by the driving sleeve to move under the matching of the internal thread and the external thread, the driving ring drives the balls to move through the guide surface, the balls are tightly supported to one end of the air inlet pipe after sliding in the caulking groove, and the sub-balloon and the air inlet pipe can be conveniently installed and detached by an operator due to the arrangement of the driving ring, the structure is simple, and the operation is convenient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 3 is a schematic diagram of a structure on a placement frame in an embodiment of the invention;

FIG. 4 is a cross-sectional view of a riser tube according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of the coupling mechanism in the embodiment of the present invention;

fig. 6 is a schematic structural view of a connector in an embodiment of the present invention.

In the figure: 1. a support; 2. an oven; 3. a cabinet door; 4. a venting mechanism; 5. placing a plate; 6. a jacking mechanism; 7. a heating box; 8. heating a tube; 9. an air outlet pipe; 10. a blower; 11. a blast pipe; 12. a connecting mechanism; 13. a connecting pipe; 14. connecting pipes; 15. a ring groove; 16. a connecting ring; 17. an internal thread; 18. an external thread; 19. a first end face tooth; 20. a second face tooth; 21. a connecting spring; 22. a jacking pipe; 23. an air outlet; 24. a breather pipe; 25. separating balloons; 26. an air inlet pipe; 27. placing the frame; 28. placing a net; 29. a vertical rod; 30. a vertical tube; 31. a gas blowing hole; 32. mounting grooves; 33. placing a rod; 34. a long groove; 35. a roller; 36. a chute; 37. a first ring; 38. a second ring; 39. an L-shaped rod; 40. a connecting member; 41. a long tube; 42. caulking grooves; 43. a ball bearing; 44. a drive sleeve; 45. a drive ring; 46. a first thread; 47. a second thread; 48. a guide surface.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, 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.

As shown in figures 1-6, a cow leather sofa manufacturing process comprises the following steps:

step three, unhairing and degreasing: removing oil and fat in cells in the skin and hair on the surface of the original skin to expose natural and fine grain surfaces;

seventhly, retanning;

step eight, dyeing: endowing leather with certain color, and improving the combination rate of dye and leather fiber and the combination strength of dye and leather fiber;

step nine, fat liquoring: the oiling is also called as oiling, which is to carry out proper and reasonable greasing treatment on the crust leather to ensure that the crust leather absorbs proper amount of greasing materials, recover the softness and elasticity of the original industry, prevent the leather from stiff and cracking and endow the leather with certain service performance;

drying, namely drying the cowhide sofa leather by drying equipment;

step eleven, softening: the leather is pulled to the periphery on the toggling plate, and the leather is stretched as far as possible;

and thirteen, finishing.

The drying equipment in the tenth step comprises a support 1, an oven 2 is fixedly connected to the support 1, the inside of the oven 2 is hollow, one side of the oven is communicated with the outside, a cabinet door 3 is rotatably connected to the inner wall of one side of the oven 2 communicated with the outside, and a ventilation mechanism 4 used for introducing hot air into the oven 2 is arranged on the side wall of the oven 2.

As shown in fig. 1-6, the ventilation mechanism 4 includes a heating box 7, a heating pipe 8, an air outlet pipe 9, an air blower 10, and a blast pipe 11, wherein the heating box 7 is fixedly connected to a side wall of the oven 2, the inside of the heating box 7 is hollow, the heating pipe 8 is installed on an inner wall of the heating box 7, the heating pipe 8 is horizontally arranged, one end of the air outlet pipe 9 is fixedly connected to an upper surface of the heating box 7 and is communicated with the inside of the heating box 7, the air blower 10 is fixedly connected to an outer wall of the heating box 7, one end of the blast pipe 11 is fixedly connected to an air outlet of the air blower 10, and one end of the blast pipe 11 is fixedly connected to a lower surface of the heating box 7 and is communicated with the inside of the heating box 7.

As shown in fig. 1-6, in order to facilitate the installation and removal of the heating tube 8 by an operator, a connection mechanism 12 is disposed between the heating tube 8 and the inner wall of the heating box 7, the connection mechanism 12 includes a connection tube 13, a connection tube 14, an annular groove 15, a connection ring 16, an internal thread 17, an external thread 18, a first end face tooth 19, a second end face tooth 20, and a connection spring 21, one end of the connection tube 13 is fixedly connected to the inner wall of the heating box 7, the connection tube 14 is fixedly connected to the outer wall of one end of the heating tube 8, the annular groove 15 is formed on the inner wall of the connection tube 13, the connection ring 16 is slidably connected to the annular groove 15, the internal thread 17 is formed on the inner wall of the connection ring 16, the external thread 18 is formed on the outer wall of the connection tube 14, the first end face tooth 19 is fixedly connected to the inner wall of one side of the annular groove 15 away from the heating tube 8, the second end face tooth 20 is fixedly connected to the side wall of the connection ring 16 away from the heating tube 8, the connection spring 21 is disposed in the connection tube 13, one end of the connecting spring 21 is fixedly connected to the inner wall of the connecting pipe 13, the other end of the connecting spring 21 abuts against one end face of the connecting pipe 14, the internal thread 17 is meshed with the external thread 18, and the first end face tooth 19 and the second end face tooth 20 are separated under the action of the connecting spring 21.

As shown in fig. 1-6, a plurality of placing plates 5 are installed between the inner walls of the two sides of the oven 2, a jacking mechanism 6 for jacking up the leather through air is arranged on the placing plates 5, the jacking mechanism 6 comprises jacking pipes 22, air outlet holes 23, air pipes 24, air distributing balls 25 and air inlet pipes 26, the jacking pipes 22 are installed on the upper surface of a placing frame 27, a plurality of jacking pipes 22 are evenly installed at intervals along the width direction of the placing frame 27, the air outlet holes 23 are opened on the outer wall of the jacking pipes 22, the air outlet holes 23 are arranged upwards, one end of each air pipe 24 is fixedly connected to the end face of one end of each jacking pipe 22, each air distributing ball 25 is fixedly connected to one end of each air pipe 24, one end of each air inlet pipe 26 is installed on the outer wall of each air distributing ball 25, and the other end of each air inlet pipe 26 is fixedly connected to the upper surface of the heating box 7 and communicated with the inside of the heating box 7.

As shown in fig. 1-6, the placing plate 5 includes a placing frame 27 and a placing net 28, the placing frame 27 is arranged in a rectangular shape, the placing net 28 is fixedly connected to the inner wall of the placing frame 27, in order to facilitate an operator to tile leather on the placing net 28, mounting grooves 32 are formed in the upper surfaces of the two sides of the placing frame 27, one sides of the mounting grooves 32 are communicated with the inner wall of the placing frame 27, vertical bars 29 are fixedly connected to the bottoms of the mounting grooves 32, vertical pipes 30 are fixedly connected to the outer walls of the two ends of the jacking pipes 22, the vertical pipes 30 are slidably connected to the outer walls of the vertical bars 29, the two ends of the jacking pipes 22 are embedded in the mounting grooves 32, air blowing holes 31 are formed in the outer walls of the two ends of the jacking pipes 22, and the air blowing holes 31 are arranged downward.

As shown in fig. 1 to 6, in order to facilitate an operator to mount the placing frame 27 on the inner wall of the oven 2, a plurality of placing rods 33 are fixedly connected to the inner walls of the two sides of the oven 2 at uniform intervals along the height direction of the oven 2, an elongated slot 34 is formed in the upper surface of the placing rod 33, the elongated slot 34 is arranged along the length direction of the placing rod 33, a plurality of rollers 35 are rotatably connected between the inner walls of the two sides of the elongated slot 34 at uniform intervals along the length direction of the elongated slot 34, sliding slots 36 are formed in the lower surfaces of the two sides of the placing frame 27, two ends of the sliding slots 36 are communicated with the outside, the depth of the sliding slot 36 is smaller than the distance of the rollers 35 exceeding the upper surface of the placing rod 33, and the rollers 35 abut against the bottoms of the sliding slots 36.

As shown in fig. 1 to 6, in order to improve the stability of the mounting of the placement frame 27 on the placement rod 33, a first ring 37 is fixedly connected to an end surface of the placement rod 33 near the cabinet door 3, a second ring 38 is fixedly connected to an end surface of the placement frame 27, and an L-shaped rod 39 is inserted into the first ring 37 and the second ring 38.

As shown in fig. 1-6, in order to facilitate the installation and removal of the air inlet pipe 26 and the air distributing ball 25 by an operator, a connecting member 40 is disposed between the air inlet pipe 26 and the air distributing ball 25, the connecting member 40 includes a long pipe 41, an insertion groove 42, balls 43, a driving sleeve 44, a driving ring 45, first threads 46, second threads 47 and guiding surfaces 48, one end of the long pipe 41 is fixedly connected to the outer wall of the air distributing ball 25, the long pipe 41 is communicated with the interior of the air distributing ball 25, the insertion groove 42 is disposed on the outer wall of the long pipe 41, a plurality of insertion grooves 42 are disposed along the outer wall of the long pipe 41 at equal intervals in the circumferential direction, the balls 43 are slidably inserted into the insertion groove 42, the driving sleeve 44 is slidably connected to the outer wall of the long pipe 41, the driving ring 45 is fixedly connected to the inner wall of the driving sleeve 44, the first threads 46 are disposed on the inner wall of the driving ring 45, the second threads 47 are disposed on the outer wall of the long pipe 41, the guiding surfaces 48 are disposed on the end surface of the driving ring 45, the guide surface 48 is opened toward the ball 43, and one end of the air inlet pipe 26 is slidably connected to the inner wall of the long pipe 41, the driving sleeve 44 drives the driving ring 45 to move through the cooperation of the first thread 46 and the second thread 47, the driving ring 45 drives the ball 43 to move through the guide surface 48, and the ball 43 slides in the caulking groove 42 and abuts against the outer wall of one end of the air inlet pipe 26.

The working principle of the embodiment of the invention is as follows: an operator lays leather on the placing net 28 flatly, the operator places the placing frame 27 on the placing rod 33, the roller 35 abuts against the bottom of the chute 36, the placing frame 27 slides into the oven 2 under the action of the roller 35, one end of the air inlet pipe 26 slides into the long pipe 41, the driving sleeve 44 is rotated, under the matching of the internal thread 17 and the external thread 18, the driving sleeve 44 drives the driving ring 45 to move, the driving ring 45 drives the balls 43 to move through the guide surface 48, and the balls 43 slide in the embedded groove 42 and abut against the outer wall of the air inlet pipe 26; the air blower 10 works, the air blower 10 introduces air into the heating box 7 through the air blowing pipe 11, the air is heated under the action of the heating pipe 8, the heated air is introduced into the oven 2 through the air outlet pipe 9, the heated air enters the air dividing balloon 25 through the air inlet pipe 26, the air is introduced into the jacking pipe 22 through the air vent pipe 24, the air is blown to the leather through the air outlet hole 23, the leather is separated from the jacking pipe 22 under the action of the air, the air in the jacking pipe 22 is blown out through the air blowing hole 31, the air is blown to the bottom of the installation groove 32, under the action of action force and reaction force, the vertical pipe 30 on the jacking pipe 22 slides on the vertical rod 29, and the jacking pipe 22 moves upwards, so that the distance between the leather and the placing net 28 is increased; one end of the heating pipe 8 is slid into the connecting pipe 13, the heating pipe 8 is pressed, the first end face teeth 19 are meshed with the second end face teeth 20, the heating pipe 8 is rotated, the internal threads 17 are meshed with the external threads 18, the heating pipe 8 is released after the internal threads 17 are meshed with the external threads 18, and the first end face teeth 19 are separated from the second end face teeth 20 under the action of the connecting spring 21.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A manufacturing process of cow leather sofa leather comprises the following steps:

step two, soaking, wherein the purpose of the process is to restore the original skin to the fresh skin state;

seventhly, retanning;

step ten, drying, namely drying the cowhide sofa leather by drying equipment;

and thirteen, finishing.

Drying equipment in step ten includes support (1), fixedly connected with oven (2) on support (1), oven (2) inside is cavity setting and one side and external intercommunication, it is connected with one cabinet door (3) to rotate on oven (2) and the one side inner wall of external intercommunication, be equipped with on oven (2) lateral wall and be used for toward inside ventilation mechanism (4) that let in hot-air of oven (2), install a plurality of between oven (2) both sides inner wall and place board (5), be equipped with climbing mechanism (6) that are used for jacking up the leather through the air on placing board (5).

2. The process for manufacturing the cow leather sofa leather according to claim 1, wherein the process comprises the following steps: the ventilating mechanism (4) comprises a heating box (7) which is fixedly connected to the side wall of the oven (2) and is internally provided with a hollow structure, a heating pipe (8) installed on the inner wall of the heating box (7), an air outlet pipe (9) fixedly connected to the outer wall of the heating box (7), an air blower (10) fixedly connected to the outer wall of the heating box (7) and a blast pipe (11) fixedly connected to the air outlet of the air blower (10), wherein one end of the blast pipe (11) is fixedly connected to the outer wall of the heating box (7) and is communicated with the inside of the heating box (7), and one end of the air outlet pipe (9) is fixedly connected to the lower surface of the oven (2) and is communicated with the inside of the oven (2).

3. The process for manufacturing the cow leather sofa leather according to claim 2, wherein the process comprises the following steps: heating pipe (8) are the level and set up, along a plurality of heating pipes (8) of the even fixedly connected with in heating cabinet (7) length direction interval, the one end that air-blower (10) were kept away from in blast pipe (11) is located heating pipe (8) below, the one end that oven (2) were kept away from in play tuber pipe (9) is located heating pipe (8) top.

4. The process for manufacturing cow leather sofa according to claim 3, wherein the process comprises the following steps: a connecting mechanism (12) is arranged between the heating pipe (8) and the inner wall of the heating box (7), the connecting mechanism (12) comprises a connecting pipe (13) fixedly connected to the inner wall of the heating box (7), a connecting pipe (14) fixedly connected to the outer wall of the heating pipe (8), a ring groove (15) formed in the inner wall of the connecting pipe (13), a connecting ring (16) slidably connected to the ring groove (15), an internal thread (17) formed in the inner wall of the connecting ring (16), an external thread (18) formed in the outer wall of the connecting pipe (14), a first end face tooth (19) fixedly connected to the inner wall of one side of the ring groove (15) far away from the heating pipe (8), a second end face tooth (20) fixedly connected to the side wall of the connecting ring (16) far away from the heating pipe (8) and a connecting spring (21) arranged in the connecting pipe (13), the internal thread (17) is meshed with the external thread (18), one end of the connecting spring (21) is fixedly connected to the inner wall of one end of the connecting pipe (13), the other end of the connecting spring (21) abuts against one end of the connecting pipe (14), the first end face teeth (19) and the second end face teeth (20) are separated under the action of restoring force of the connecting spring (21), and the internal threads (17) and the external threads (18) are meshed.

5. The process for manufacturing cow leather sofa leather according to claim 4, wherein the process comprises the following steps: climbing mechanism (6) include along placing board (5) width direction even interval install in the board of placing (5) upper surface on tedge (22), set up venthole (23) on tedge (22) outer wall, fixed connection in tedge (22) one serve breather pipe (24), fixed connection in breather pipe (24) one serve divide balloon (25), fixed connection is in dividing air-supply line (26) on balloon (25) outer wall, the one end fixed connection of air-supply line (26) is on heating cabinet (7) upper surface.

6. The process for manufacturing the cow leather sofa leather according to claim 5, wherein the process comprises the following steps: the placing plate (5) comprises a placing frame (27) and a placing net (28) fixedly connected to the inner wall of the placing frame (27), wherein two sides of the upper surface of the placing frame (27) are fixedly connected with a vertical rod (29), two outer walls at two ends of the jacking pipe (22) are fixedly connected with a vertical pipe (30), the vertical pipe (30) is connected to the vertical rod (29) in a sliding mode, air blowing holes (31) are formed in outer walls at two ends of the jacking pipe (22), and the air blowing holes (31) are arranged towards the upper surface of the placing frame (27).

7. The process for manufacturing cow leather sofa according to claim 6, wherein the process comprises the following steps: place and seted up mounting groove (32) on frame (27) upper surface, the both sides of mounting groove (32) with place frame (27) inside and outside wall intercommunication, montant (29) one end fixed connection is on mounting groove (32) groove bottom, the both ends of tedding (22) are inlayed and are established in mounting groove (32).

8. The process for manufacturing cow leather sofa leather according to claim 7, wherein the process comprises the following steps: the oven comprises an oven body (2), a plurality of placing rods (33) are fixedly connected between the inner walls of the two sides of the oven body (2) at intervals along the height direction of the inner walls of the oven body (2), an elongated slot (34) is formed in the upper surface of each placing rod (33) along the length direction of each placing rod (33), rollers (35) are rotatably connected to the inner walls of the two sides of each elongated slot (34) at intervals, the outer wall of each roller (35) exceeds the upper surface of each placing rod (33), sliding slots (36) are formed in the lower surfaces of the two sides of each placing frame (27), the two ends of each sliding slot (36) are communicated with the end faces of the two ends of each placing frame (27), the depth of each sliding slot (36) is smaller than the distance that each roller (35) exceeds the upper surface of each placing rod (33), and each roller (35) is abutted to the bottoms of the sliding slots (36).

9. The process for manufacturing cow leather sofa leather according to claim 8, wherein the process comprises the following steps: a first ring (37) is fixedly connected to one end face, close to the cabinet door (3), of the placing rod (33), a second ring (38) is fixedly connected to one end face of the placing frame (27), and an L-shaped rod (39) is inserted into the first ring (37) and the second ring (38).

10. The process for manufacturing cow leather sofa leather according to claim 9, wherein the process comprises the following steps: a connecting piece (40) is arranged between the branch balloon (25) and the air inlet pipe (26), the connecting piece (40) comprises a long pipe (41) fixedly connected to the outer wall of the branch balloon (25), an embedded groove (42) formed in the outer wall of the long pipe (41), balls (43) embedded in the embedded groove (42) in a sliding manner, a driving sleeve (44) connected to the outer wall of the long pipe (34) in a sliding manner, a driving ring (45) fixedly connected to the inner wall of the driving sleeve (44), first threads (46) formed in the inner wall of the driving ring (45), second threads (47) formed in the outer wall of the long pipe (41) and a guide surface (48) formed in the end face of one end of the driving ring (45), the first threads (46) are meshed with the second threads (47), the guide surface (48) is formed towards the balls (43), one end of the air inlet pipe (26) is connected to the inner wall of the long pipe (41) in a sliding manner, the ball (43) slides in the caulking groove (42) and then abuts against the outer wall of the air inlet pipe (26).