阅读说明：本技术 抗菌防霉防污以及防紫外线皮革制造设备及其制作工艺 (Antibacterial, mildew-proof, antifouling and ultraviolet-proof leather manufacturing equipment and manufacturing process thereof ) 是由 董怀志 岳明明 张传行 于文秀 于 2020-07-01 设计创作，主要内容包括：本发明公开了抗菌防霉防污以及防紫外线皮革制造设备及其制作工艺,涉及皮革制作技术领域。该抗菌防霉防污以及防紫外线皮革制造设备及其制作工艺,包括转动装置,转动装置包括转杆一、连接杆和圆板,转杆一后表面设置有半圆块,半圆块的前表面设置有弧形槽,转杆一的后表面与半圆块的前表面左端中间部分固定连接,搅拌筒内的搅拌杆转动四分之一圈,且搅拌杆每次转动间有时间间隔,避免了不停搅拌造成真皮破损影响处理效果,每次搅拌间有时间间隔也增加了鞣制的质量,通过打开竖板将需要处理的真皮放入搅拌筒内部,关将竖板前表面和搅拌筒后表面贴合,通过转动转盘使转杆五转动从而使转环伸入卡槽内,固定竖板和搅拌筒,使得竖板搅拌时不会脱离,提高了设备的稳定性。(The invention discloses antibacterial, mildew-proof, antifouling and ultraviolet-proof leather manufacturing equipment and a manufacturing process thereof, and relates to the technical field of leather manufacturing. The antibacterial, mould-proof, antifouling and ultraviolet-proof leather manufacturing equipment comprises a rotating device, wherein the rotating device comprises a first rotating rod, a connecting rod and a circular plate, a semicircular block is arranged on the rear surface of the first rotating rod, an arc-shaped groove is formed in the front surface of the semicircular block, the rear surface of the first rotating rod is fixedly connected with the middle part of the left end of the front surface of the semicircular block, a stirring rod in a stirring cylinder rotates for a quarter circle, time intervals exist between every two rotations of the stirring rod, the influence of damage of leather caused by continuous stirring on the treatment effect is avoided, the time intervals exist between every two stirring times, the tanning quality is also increased, the leather to be treated is placed into the stirring cylinder by opening a vertical plate, the front surface of the vertical plate is attached to the rear surface of the stirring cylinder, the rotating plate is rotated for five times by rotating the rotating disc, so that the rotating ring extends into a clamping groove, the vertical plate and, the stability of the device is improved.)

1. Antibiotic mould proof antifouling and anti ultraviolet leather manufacture equipment, including rotating device (1), its characterized in that: the rotating device (1) comprises a first rotating rod (17), the rotary drum type feeding device comprises a connecting rod (13) and a circular plate (15), wherein a semicircular block (11) is arranged on the rear surface of a first rotating rod (17), an arc-shaped groove (12) is formed in the front surface of the semicircular block (11), the rear surface of the first rotating rod (17) is fixedly connected with the middle part of the left end of the front surface of the semicircular block (11), the middle part of the left surface of the semicircular block (11) is fixedly connected with the right surface of the connecting rod (13), a rotary drum (2) is arranged behind the connecting rod (13), a supporting frame (4) is arranged below the first rotating rod (17), an opening and closing device (5) is arranged at the rear end of the rotary drum (2), a feeding hole (3) is formed in the upper end of the rotary drum (2), a first circular rod (14) is arranged on the front surface of the connecting rod (13), and the rear surface of the first circular.

2. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: four upper, lower, left and right ends of the front and back surfaces of the circular plate (15) are respectively provided with a sliding groove (18), the upper left, lower left, upper right and lower right ends of the front and back surfaces of the circular plate (15) are respectively provided with a first circular groove (16), the rear surface of the circular plate (15) is provided with four second circular rods (112), the front ends of the four second circular rods (112) are respectively fixedly connected with the four first circular grooves (16), the middle parts of the front and back surfaces of the circular plate (15) are provided with second rod faces (19), and the middle parts of the second rod faces (19) are fixedly sleeved with the middle parts of the front and back surfaces of the circular plate (15).

3. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: the front ends of the rod faces of the first rotating rod (17) and the second rotating rod (19) are respectively provided with a pair of circular rings (110), the inner circular face of each pair of circular rings (110) is fixedly connected with the front ends of the rod faces of the first rotating rod (17) and the second rotating rod (19), a connecting block (111) is arranged between each pair of circular rings (110), and the middle parts of the front and rear faces of the two connecting blocks (111) are movably sleeved with the parts between the corresponding pair of circular rings (110) on the rod faces of the first rotating rod (17) and the second rotating rod (19).

4. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: the rotary drum (2) comprises a stirring drum (27), two supporting plates (24) and a third rotating rod (26), three stirring rods (25) are uniformly and fixedly arranged on a rod face of the third rotating rod (26), a round groove II (22) is arranged in the middle of the front surface of the stirring drum (27), a fourth rotating rod (23) is arranged in the round groove II (22), the middle of the rod face of the fourth rotating rod (23) is hinged with the round groove II (22), the rear surface of the fourth rotating rod (23) is fixedly connected with the front surface of the third rotating rod (26), a feeding groove (21) is arranged in the middle of the upper end of the drum face of the stirring drum (27), a round groove III (28) is arranged at the rear end of the upper end of the drum face of the stirring drum (27), and the upper surfaces of the two supporting plates (24) are fixedly connected with the front end and the rear end of.

5. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: feed inlet (3) are including inlet pipe (31), baffle (33) and separation blade (35), the front surface lower extreme of inlet pipe (31) is provided with a square groove (36), the right surface lower extreme of inlet pipe (31) is provided with slot (34), baffle (33) set up in square groove (36), the left end of separation blade (35) and the right surface rear end fixed connection of baffle (33), the right-hand member setting of separation blade (35) is at slot (34) right-hand member, baffle (33) front surface is provided with a pull ring (32), the rear surface of pull ring (32) and the front surface fixed connection of baffle (33).

6. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: the support frame (4) comprises two vertical rods (42), a bottom plate (41) and an electric device (43), the lower surfaces of the two vertical rods (42) are fixedly connected with the left end and the right end of the rear end of the upper surface of the bottom plate (41) respectively, the lower surface of the electric device (43) is fixedly connected with the middle part of the right end of the upper surface of the bottom plate (41), and the upper surfaces of the two vertical rods (42) are fixedly connected with the lower surfaces of the two connecting blocks (111) respectively.

7. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: the opening and closing device (5) comprises a vertical plate (51), a rotary table (58) and a square block (56), the lower surface of the square block (56) is fixedly connected with the upper end of the arc surface of the vertical plate (51), the lower ends of the left side and the right side of the square block (56) are respectively provided with a clamping groove (55), a fifth rotating rod (57) is arranged in front of the square block (56), the upper surface of the fifth rotating rod (57) is fixedly connected with the middle part of the lower surface of the rotary table (58), the left end of the fifth rotating rod (57) is provided with a transverse block (53), the right surface of the transverse block (53) is fixedly connected with the middle part of the left end of the rod surface of the fifth rotating rod (57), the left surface of the transverse block (53) is provided with a rotating ring (54), the front end of the rotating ring (54) is provided with a clamping opening (52.

8. The leather manufacturing apparatus of claim 1, wherein the leather manufacturing apparatus is characterized in that: the lower end of the rotating rod five (57) is hinged to the circular groove three (28), the front end of the rotating rod one (17) penetrates through the upper end of the rear surface of the electric device (43) and is fixedly connected with a motor inside the electric device (43), the lower end of the front surface of one supporting plate (24) located at the front end in the bottom plate (41) and the two supporting plates (24) is fixedly connected with the lower end of the front surface of the other supporting plate, and the lower surface of the feeding pipe (31) is fixedly connected with the upper end of the feeding groove (21).

9. The manufacturing process of the antibacterial, mildewproof, antifouling and ultraviolet-proof leather is characterized by comprising the following steps of: the method comprises the following steps:

1): preparing tanning liquid, namely dissolving alum, salt and water, dissolving the alum by using warm water, adding the rest water and the salt, uniformly mixing, generating free sulfuric acid after the alum is dissolved in the water, enabling protein fibers in skins to absorb water to swell, and adding the salt for inhibiting swelling, wherein the amount of the added salt depends on the temperature, less salt can be added at low temperature, and 0.7-2 parts of salt can be added according to 1 part of the alum at high temperature;

2): the ratio of material to liquid is 4-5: 1, (when the weight of the wet leather is 1, tanning liquor is 4-5), putting the wet leather and the tanning liquor into a rotary drum (2), fully soaking the fur in the liquor, fully stirring in the rotary drum (2) for uniformly permeating the liquor into the leather, stirring once every day after the next night, stirring for about thirty minutes every time, and finishing tanning after soaking for 7-10 days;

3): the soaked skin is taken out from the rotary drum (2), the skin plate is outward, the plush is folded inwards, the water is pressed out by force at the corner, and if the folding part is white and unclear, the skin is in a tissue shape, and the tanning is proved to be finished.

Technical Field

The invention relates to the technical field of leather manufacturing, in particular to an antibacterial, mildewproof, antifouling and ultraviolet-proof leather manufacturing device and a manufacturing process thereof.

Background

The leather needs to be subjected to a series of treatments such as mildew prevention, stain prevention, ultraviolet ray prevention, bacteria resistance and the like in the manufacturing process to improve the applicability of the leather, leather mildew growth is a difficult point of leather manufacturers, particularly, the probability of the situation is increased in rainy seasons, the leather mildew prevention treatment is usually carried out by adopting a tanning method, and tanning is a process that tanning agent molecules permeate into the leather and are combined with collagen molecule active groups of raw leather to change the properties. Tanning enables cross-linking bonds to be generated between collagen polypeptide chains of the leather, so that the stability of a collagen structure is increased, the contraction temperature and the damp-heat resistant stability are improved, and the capacity of chemicals such as acid resistance, alkali resistance, enzyme resistance and the like is improved, when the fur is tanned, firstly, raw materials are softened, the fresh leather state is recovered, and unnecessary components in fur processing are removed, wherein the ratio of material to liquid is 4-5: 1, (when the wet weight of the leather is 1, 4-5 parts of tanning liquid). Putting the leather into a container to fully soak the fur in the material liquid, fully stirring (preferably adopting a rotary drum) in order to ensure that the material liquid uniformly permeates into the leather, stirring once a day after nighttime, stirring for about 30 minutes each time, and soaking for 7-10 days to finish tanning, wherein the leather is easy to damage due to too fast stirring to cause economic loss during stirring, so that the antibacterial, mildewproof and anti-fouling and ultraviolet-proof leather manufacturing equipment and the manufacturing process thereof are provided, a rotating device is utilized to ensure that the stirring speed is slower and a time interval exists between every two times of stirring, the leather is prevented from being easily damaged due to too fast stirring, and the tanning effect is better.

Disclosure of Invention

The invention aims to provide an antibacterial, mildew-proof, anti-fouling and ultraviolet-proof leather manufacturing device and a manufacturing process thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the leather manufacturing equipment comprises a rotating device, wherein the rotating device comprises a first rotating rod, a connecting rod and a circular plate, a semicircular block is arranged on the rear surface of the first rotating rod, an arc-shaped groove is formed in the front surface of the semicircular block, the rear surface of the first rotating rod is fixedly connected with the middle part of the left end of the front surface of the semicircular block, the middle part of the left surface of the semicircular block is fixedly connected with the right surface of the connecting rod, a rotary drum is arranged behind the connecting rod, a supporting frame is arranged below the first rotating rod, an opening and closing device is arranged at the rear end of the rotary drum, a feeding hole is formed in the upper end of the rotary drum, a first round rod is arranged on the front surface of the connecting rod, the rear surface of the first round rod is fixedly connected with the left end of the front surface of the connecting rod, sliding grooves are formed in the upper end, the lower end, the left end, the lower, the rear surface of the circular plate is provided with four second round rods, the front ends of the four second round rods are fixedly connected with the four first round grooves respectively, the middle parts of the front and rear surfaces of the circular plate are provided with second rotating rods, the middle parts of the rod surfaces of the second rotating rods are fixedly sleeved with the middle parts of the front and rear surfaces of the circular plate, the front ends of the rod surfaces of the first rotating rods and the second rotating rods are provided with a pair of circular rings, the inner ring surface of each pair of circular rings is fixedly connected with the front ends of the rod surfaces of the first rotating rods and the second rotating rods respectively, a connecting block is arranged between each pair of circular rings, and the middle parts of the front and rear surfaces of the two connecting blocks are movably sleeved with the parts between the.

Preferably, the rotary drum comprises a mixing drum, two support plates and a third rotating rod, three mixing rods are uniformly and fixedly arranged on a rod face of the third rotating rod, a circular groove II is formed in the middle of the front surface of the mixing drum, a fourth rotating rod is arranged in the circular groove II, the middle of the surface of the fourth rotating rod is hinged with the circular groove II, the four rear surfaces of the rotating rods are fixedly connected with the front surface of the third rotating rod, a feeding groove is formed in the middle of the upper end of the drum surface of the mixing drum, a third circular groove is formed in the rear end of the upper end of the drum surface of the mixing drum, and the upper surfaces of the two support plates are fixedly connected with the front end and the.

Preferably, the feed inlet includes inlet pipe, baffle and separation blade, and the front surface lower extreme of inlet pipe is provided with a square groove, and the right surface lower extreme of inlet pipe is provided with the stria, and the baffle setting is at the square groove, and the left end of separation blade and the right surface rear end fixed connection of baffle, the right-hand member setting of separation blade are at the stria right-hand member, and the baffle front surface is provided with a pull ring, the rear surface of pull ring and the front surface fixed connection of baffle.

Preferably, the support frame includes two montants, bottom plate and electric actuator, the lower surface of two montants respectively with the upper surface of bottom plate rear end both ends fixed connection about, electric actuator lower surface and the right-hand member middle part fixed connection of bottom plate upper surface, the upper surface of two montants respectively with the lower fixed connection of two connecting blocks.

Preferably, the headstock gear includes riser, carousel and square, the lower surface of square and the cambered surface upper end fixed connection of riser, the lower extreme of the two sides all is provided with the draw-in groove about the square, square the place ahead is provided with bull stick five, the upper surface of bull stick and the lower surface mid portion fixed connection of carousel, five left ends of bull stick are provided with the crosspiece, the right surface of crosspiece and the mid portion fixed connection of bull stick five face left end, the crosspiece left surface is provided with the change, the front end of change is provided with the bayonet socket, the left surface of crosspiece and the interior anchor fixed connection of change.

Preferably, the five lower ends of the rotating rod are hinged to the circular groove III, the front end of the rotating rod I penetrates through the upper end of the rear surface of the electric device and is fixedly connected with a motor inside the electric device, the lower end of the front surface of one supporting plate located at the front end in the rear surface of the bottom plate and the two supporting plates is fixedly connected, and the lower surface of the feeding pipe is fixedly connected with the upper end of the feeding groove.

The invention aims to solve another technical problem of providing a manufacturing process of antibacterial, mildewproof, antifouling and ultraviolet-proof leather, which comprises the following steps:

1): preparing tanning liquid, and using alum, salt and water. Dissolving alum in warm water, adding the rest water and salt, mixing them uniformly, and dissolving alum in water to generate free sulfuric acid which can make protein fibre in the skin absorb water and expand. The salt is added to inhibit swelling, but the amount of salt is determined by temperature, and at low temperature, less salt is added, and at high temperature, more salt is added according to 1 part of alum and 0.7-2 parts of salt

Salt.

2): the ratio of material to liquid is 4-5: 1, (when the wet weight of the leather is 1, 4-5 parts of tanning liquid). Putting wet leather and tanning liquor into a rotary drum, fully soaking the fur in the liquor, fully stirring the liquor in the rotary drum for uniformly permeating the liquor into the leather, stirring the liquor once a day after the night, stirring the liquor for about thirty minutes every time, and finishing the tanning after soaking for 7-10 days.

3): taking out the soaked skin from the drum, folding the skin plate outwards and the pile inwards, pressing off the water at the corner with force, and if the folding part is white and unclear, the skin is in a tissue shape, thus proving that the tanning is finished

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

(1) this antibiotic mould proof antifouling and anti ultraviolet leather manufacture equipment and preparation technology thereof, start electric actuator and make bull stick one rotate, thereby the bull stick drives the semicircle piece and rotates and drive round bar one and rotate, round bar one rotates along the spout and drives the plectane and rotate, round bar two removes in the arc wall during the plectane rotates, round bar one rotates the round at this moment and can drives the plectane and rotate the quarter round, puddler in the churn rotates the quarter round promptly, and the puddler rotates time interval at every turn, avoided incessant stirring to cause the damaged influence treatment effect of genuine leather, time interval has also increased tanned quality at every turn between the stirring.

(2) This antibiotic mould proof is antifouling and ultraviolet protection leather manufacture equipment and manufacturing process thereof, when utilizing the rotary drum to carry out leather mould proof and handle, through opening inside the dermal that the riser will need to handle put into the churn, close with riser front surface and churn rear surface laminating, thereby make five rotations of bull stick make the change the ring stretch into the draw-in groove through rotating the carousel, fixed riser and churn for can not break away from during the riser stirring, improved the stability of equipment.

(3) According to the antibacterial, mildewproof, antifouling and ultraviolet-proof leather manufacturing equipment and the manufacturing process thereof, the baffle is pulled by the pull ring, so that the tanning liquid can be poured into the mixing drum from the feeding pipe, the baffle is pushed back into the square groove, the stirring treatment can be started, and the feeding pipe is prevented from being spilled out when the tanning liquid is stirred.

(4) The antibacterial, mildew-proof, antifouling and ultraviolet-proof leather manufacturing equipment and the manufacturing process thereof stir through the stirring rods which are arranged to be perpendicular to each other, so that the leather continuously rolls when stirred, and the treatment effect is improved.

(5) According to the antibacterial, mildewproof, antifouling and ultraviolet-proof leather manufacturing equipment and the manufacturing process thereof, the baffle plate is protected from being separated from the square groove, and tanning liquid is prevented from being easily spilled out when stirring is caused due to the loss of the baffle plate.

(6) The anti-bacterial, mould-proof, anti-fouling and anti-ultraviolet leather manufacturing equipment and the manufacturing process thereof have the advantages that the ring limits the connecting block not to displace when the first rotating rod and the second rotating rod rotate so as to cause the abnormal work of the rotating device, and the stability of the device is further improved.

Drawings

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

FIG. 2 is a schematic view of the rotating apparatus shown in FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the drum of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the feed gap of FIG. 1 according to the present invention;

FIG. 5 is a schematic view of the support frame of FIG. 1 according to the present invention;

FIG. 6 is a schematic structural view of the opening and closing device of FIG. 1 according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

fig. 8 is an enlarged view of the structure at B in fig. 6 according to the present invention.

In the figure: 1. a rotating device; 2. a drum; 3. a feed inlet; 4. a support frame; 5. an opening and closing device; 11. a semicircular block; 12. an arc-shaped slot; 13. a connecting rod; 14. a first round rod; 15. a circular plate; 16. a first circular groove; 17. a first rotating rod; 18. a chute; 19. a second rotating rod; 110. a circular ring; 111. connecting blocks; 112. a second round bar; 21. a feed chute; 22. a second circular groove; 23. a fourth rotating rod; 24. a support plate; 25. a stirring rod; 26. a third rotating rod; 27. a mixing drum; 28. a circular groove III; 31 a feed pipe; 32. a pull ring; 33. a baffle plate; 34. a fine groove; 35. a baffle plate; 36. a square groove; 41. a base plate; 42. a vertical rod; 43. an electric device; 51. a vertical plate; 52. a bayonet; 53. a transverse block; 54. rotating the ring; 55. a card slot; 56. a square block; 57. a fifth rotating rod; 58. a turntable.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution: the antibacterial, mildew-proof, antifouling and ultraviolet-proof leather manufacturing equipment comprises a rotating device 1, wherein the rotating device 1 comprises a first rotating rod 17, a connecting rod 13 and a circular plate 15, a semicircular block 11 is arranged on the rear surface of the first rotating rod 17, an arc-shaped groove 12 is arranged on the front surface of the semicircular block 11, the rear surface of the first rotating rod 17 is fixedly connected with the middle part of the left end of the front surface of the semicircular block 11, the middle part of the left surface of the semicircular block 11 is fixedly connected with the right surface of the connecting rod 13, a rotating drum 2 is arranged behind the connecting rod 13, the rotating drum 2 comprises a stirring drum 27, two supporting plates 24 and three rotating rods 26, three stirring rods 25 are uniformly and fixedly arranged on the rod faces of the three rotating rods 26, a circular groove two 22 is arranged in the middle part of the front surface of the stirring drum 27, a rotating rod four 23 is arranged in the circular groove two 22, the rod faces of the four rotating rods 23 are hinged with the circular groove two 22, the rear surface, the middle part of the upper end of the cylinder surface of the mixing cylinder 27 is provided with a feeding groove 21, the rear end of the upper end of the cylinder surface of the mixing cylinder 27 is provided with a circular groove III 28, the upper surfaces of two support plates 24 are respectively fixedly connected with the front end and the rear end of the lower end of the cylinder surface of the mixing cylinder 27, a support frame 4 is arranged below a rotating rod I17, the support frame 4 comprises two vertical rods 42, a bottom plate 41 and an electric device 43, the lower surfaces of the two vertical rods 42 are respectively fixedly connected with the left end and the right end of the rear end of the upper surface of the bottom plate 41, the lower surface of the electric device 43 is fixedly connected with the middle part of the right end of the upper surface of the bottom plate 41, the upper surfaces of the two vertical rods 42 are respectively fixedly connected with the lower surfaces of two connecting blocks 111, the rear end of the rotary drum 2 is provided with an opening and closing device 5, the opening and closing device, a fifth rotating rod 57 is arranged in front of the block 56, the upper surface of the fifth rotating rod 57 is fixedly connected with the middle part of the lower surface of the rotating disc 58, the left end of the fifth rotating rod 57 is provided with a cross block 53, the right surface of the cross block 53 is fixedly connected with the middle part of the left end of the surface of the fifth rotating rod 57, the left surface of the cross block 53 is provided with a rotating ring 54, the front end of the rotating ring 54 is provided with a bayonet 52, the left surface of the cross block 53 is fixedly connected with the left end of the inner annular surface of the rotating ring 54, the upper end of the rotating drum 2 is provided with a feed inlet 3, the feed inlet 3 comprises a feed pipe 31, a baffle 33 and a baffle 35, the lower end of the front surface of the feed pipe 31 is provided with a square groove 36, the lower end of the right surface of the feed pipe 31 is provided with a fine groove 34, the baffle 33 is arranged in the square groove 36, the left end of the baffle 35 is fixedly connected with the rear end of, the front surface of the connecting rod 13 is provided with a first round rod 14, the rear surface of the first round rod 14 is fixedly connected with the left end of the front surface of the connecting rod 13, the upper, lower, left, right and four ends of the front and rear surfaces of the round plate 15 are respectively provided with a sliding groove 18, the upper, lower, left, upper, right and lower left ends of the front and rear surfaces of the round plate 15 are respectively provided with a first round groove 16, the rear surface of the round plate 15 is provided with four second round rods 112, the front ends of the four second round rods 112 are respectively fixedly connected with the four first round grooves 16, the middle parts of the front and rear surfaces of the round plate 15 are provided with a second rotating rod 19, the middle parts of the rod faces of the second rotating rods 19 are fixedly sleeved with the middle parts of the front and rear surfaces of the round plate 15, the front ends of the rod faces of the first rotating rod 17 and the second rotating rod 19 are respectively provided with a pair of circular rings 110, the inner ring faces of each pair of the circular rings 110 are respectively fixedly connected with the front end of the first rotating rod 17 and when the rotary drum 2 is used for leather mildew-proof treatment, leather to be treated is placed into the mixing drum 27 by opening the vertical plate 51, the front surface of the vertical plate 51 is attached to the rear surface of the mixing drum 27, the rotary table 58 is rotated to enable the rotary rod five 57 to rotate, so that the rotary ring 54 extends into the clamping groove 55, the vertical plate 51 and the mixing drum 27 are fixed, the vertical plate 51 cannot be separated during mixing, the baffle plate 33 is pulled by the pull ring 32, so that tanning liquid can be poured into the mixing drum 27 from the feeding pipe 31, the baffle plate 33 is pushed back into the square groove 36 to start mixing treatment, the feeding pipe 31 is prevented from being scattered during mixing of the tanning liquid, the electric device 43 is started to enable the rotary rod one 17 to rotate, the rotary rod one 17 drives the semi-circular block 11 to rotate so as to drive the circular rod one 14 to rotate, the chute of the circular rod one 14 rotates along the circular plate 15, the circular rod two 112 move in the arc-shaped groove 12 when, at this moment, the round rod 14 can drive the round plate 15 to rotate a quarter circle every time the round rod rotates a circle, namely the stirring rod 25 in the stirring cylinder 27 rotates a quarter circle, and there is a time interval between every rotation of the stirring rod 25, the influence on the treatment effect caused by leather damage due to continuous stirring is avoided, there is a time interval between every stirring, the tanning quality is also increased, the lower end of the rotating rod five 57 is hinged with the round groove three 28, the upper end of the rear surface of the rotating rod 17 penetrates through the upper end of the electric device 43 and is fixedly connected with the motor inside the electric device 43, the lower end of the front surface of one support plate 24 positioned at the front end in the rear surface of the bottom plate 41 and the two support plates 24 is fixedly connected with the lower end of the front surface of the.

The working principle is as follows: when leather mildew-proof treatment is carried out by using the rotary drum 2, leather to be treated is placed into the mixing drum 27 by opening the vertical plate 51, the front surface of the vertical plate 51 is attached to the rear surface of the mixing drum 27, the rotary table 58 is rotated to enable the rotary rod five 57 to rotate so as to enable the rotary ring 54 to extend into the clamping groove 55, the vertical plate 51 and the mixing drum 27 are fixed, the vertical plate 51 is enabled not to be separated during mixing, the baffle plate 33 is pulled by the pull ring 32, tanning liquid can be poured into the mixing drum 27 from the feeding pipe 31, the stirring treatment can be started by pushing the baffle plate 33 back into the square groove 36, the feeding pipe 31 is prevented from being spilled out during mixing of the tanning liquid, the electric device 43 is started to enable the rotary rod one 17 to rotate, the rotary rod one 17 drives the half round block 11 to rotate so as to drive the round rod one 14 to rotate, the sliding groove of the round rod one 14 rotates along with the rotation of the round rod one 15 to drive the round rod two 112 to move in the, namely, the stirring rod 25 in the stirring cylinder 27 rotates for a quarter of a turn, and time intervals exist between every rotation of the stirring rod 25, so that the influence on the treatment effect caused by damage of the dermis due to continuous stirring is avoided, and the tanning quality is also improved due to the time intervals among every stirring.

The process for manufacturing the leather with the functions of antibiosis, mildew prevention, stain prevention and ultraviolet resistance comprises the following steps:

1): preparing tanning liquid, and using alum, salt and water. Dissolving alum in warm water, adding the rest water and salt, mixing them uniformly, and dissolving alum in water to generate free sulfuric acid which can make protein fibre in the skin absorb water and expand. The salt is added for inhibiting swelling, but the amount of salt is determined by temperature, and at low temperature, less salt is added, and at high temperature, more salt is added, and 0.7-2 parts of alum is added.

2): the ratio of material to liquid is 4-5: 1, (when the wet weight of the leather is 1, 4-5 parts of tanning liquid). Putting wet fur and tanning liquor into the rotary drum 2, fully soaking the fur in the liquor, fully stirring the liquor in the rotary drum 2 in order to enable the liquor to uniformly permeate into the leather, stirring the liquor once a day after the night, stirring the liquor for about thirty minutes every time, and finishing the tanning after soaking for 7-10 days.

3): the soaked skin is taken out of the rotary drum 2, the skin plate is folded outwards, the plush is folded inwards, the water is pressed out by force at the corner, and if the folding part is white and unclear, the skin is in a tissue shape, and the tanning is proved to be finished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.