CN109439808B

CN109439808B - Printing head layer leather and processing technology thereof

Info

Publication number: CN109439808B
Application number: CN201811256519.0A
Authority: CN
Inventors: 陈振富
Original assignee: Jinjiang Yuantai Leather Co ltd
Current assignee: JINJIANG YUANTAI LEATHER Co.,Ltd.
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2020-12-01
Anticipated expiration: 2038-10-26
Also published as: CN109439808A

Abstract

The invention discloses a processing technology of a printing head layer leather, which is processed by unhairing, degreasing, liming, deliming, tanning, greasing, drying, softening, coating and embossing; in the embossing step, the top sheet is embossed by an embossing machine, the embossing machine comprises an embossing frame, a leveling device, an embossing device and a cooling roller, and the leveling device, the embossing device and the cooling roller are sequentially arranged on the embossing frame in the processing sequence; level the device including the hot plate, level and smooth piece and a plurality of pressure spring, the vertical equipartition of a plurality of pressure spring is on the knurling frame, the one end and the knurling frame of pressure spring are connected, the other end of pressure spring is connected with the lower surface of hot plate, level and smooth piece plays leveling and promoting to the top skin, the knurling device is leveling the back and is knurling to the top skin, and the top skin after the knurling cools off through the chill roll. Compared with the prior art, the embossing effect and the embossing efficiency of the invention are greatly improved.

Description

Printing head layer leather and processing technology thereof

Technical Field

The invention relates to the field of leather, in particular to a printing head layer leather and a processing technology thereof.

Background

The printed headpiece is embossed or printed on the headpiece in a way that the surface of the headpiece is provided with beautiful printed patterns. Printed headskins are typically prepared by dehairing, degreasing, liming, deliming, pickling, tanning, retanning, dyeing, fatliquoring, drying, staking, finishing and printing. The existing printing equipment carries out direct embossing treatment on the head layer skin, and does not carry out leveling treatment on the head layer skin in the early stage, so that the folding of the head layer skin is easily caused in the printing process, and partial area of the head layer skin cannot be embossed, thereby reducing the product quality of the head layer skin.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a printed headpiece and a processing technology thereof, which have the characteristics of uniform embossing and high embossing quality of the headpiece.

In order to achieve the above purpose, the solution of the invention is:

a processing technology of a printing top layer leather is characterized in that the printing top layer leather is processed by the steps of unhairing, degreasing, liming, deliming, tanning, fatliquoring, drying, softening, coating and embossing;

in the embossing step, the top sheet is embossed by an embossing machine, the embossing machine comprises an embossing frame, a leveling device, an embossing device and a cooling roller, and the leveling device, the embossing device and the cooling roller are sequentially arranged on the embossing frame in the processing sequence; level and smooth device includes the hot plate, levels piece and a plurality of pressure spring, the vertical equipartition of a plurality of pressure spring is on the knurling frame, the one end and the knurling frame of pressure spring are connected, the other end of pressure spring is connected with the lower surface of hot plate, level and smooth piece plays leveling and promotion to the head layer skin, level and smooth piece is including rotating motor, axis of rotation and leveling block, the one end and the rotation motor of axis of rotation are connected, the other end and the leveling block of axis of rotation are connected, it drives to rotate the motor the axis of rotation, the axis of rotation is L shape, it sets up to rotate the motor slope, leveling block carries out the circumference under the drive of rotating the motor and rotates, the knurling device embosses the head layer skin after the knurling, and the head layer skin after the knurling cools off through the chill roll.

Further, the embossing device comprises a central roller, an embossing roller, a first hot pressing roller, an embossing roller, a second hot pressing roller, a first frame plate, a second frame plate and a third frame plate, wherein the first frame plate, the second frame plate and the third frame plate are sequentially arranged on the embossing roller frame through a processing sequence, the number of the first frame plate, the second frame plate and the third frame plate is two, the two first frame plates are symmetrically arranged at two sides of the embossing roller frame, the first hot pressing roller is horizontally arranged on the two first frame plates and is rotationally connected with the first frame plates through a rotating shaft, the central roller is arranged on the embossing roller frame, the central roller is arranged inside the embossing roller, heat-conducting rubber is filled between the central roller and the embossing roller, the embossing roller frame is provided with two pressure adjusting through holes, the two second frame plates are symmetrically arranged, the lower ends of the two second frame plates penetrate through the pressure adjusting through holes, the embossing roller is horizontally arranged at the upper parts of the two second frame plates and is rotationally connected with the second frame plates through a rotating shaft, and the embossing roller is located embossing roller's top, and two third frame plate symmetries are established in the both sides of embossing roller frame, second hot pressing roller level is established on the third frame plate and is rotated with the third frame plate through the pivot and be connected.

Further, still be equipped with pressure adjustment assembly on the knurling device, pressure adjustment assembly includes horizontal plate, threaded rod and pressure adjustment handle, the horizontal plate level sets up and is connected with the lower extreme of two second frame plates, be equipped with the screw through-hole on the horizontal plate, the threaded rod with the screw through-hole cooperation, just the one end of threaded rod is equipped with circular locating part, the lower surface of knurling frame is equipped with the spacing hole with circular locating part matched with, circular locating part with spacing hole cooperatees, the other end and the pressure adjustment handle of threaded rod are connected.

Furthermore, a rotating handle is arranged on the central roller.

The printing top layer leather is prepared by the processing technology of the printing top layer leather.

After the structure is adopted, the processing technology of the printing headpiece skin, disclosed by the invention, has the advantages that the leveling device is used for leveling the headpiece skin in the embossing process, so that the leveling headpiece skin can enable the embossing process to be smoother and effectively avoid the phenomenon that partial area of the headpiece skin cannot be embossed by the embossing device due to the overlapping of the headpiece skin, and the quality of the headpiece skin cannot meet the requirement. Therefore, compared with the prior art, the method has the characteristics that the subsequent embossing process is smoother and the embossing quality is higher by firstly flattening the scalp.

Drawings

FIG. 1 is a schematic process flow diagram of the present invention.

Fig. 2 is a schematic perspective view of the embossing machine of the present invention.

Fig. 3 is a top view of the embosser of the present invention.

Figure 4 is a side view of the embossing machine of the present invention.

Fig. 5 is an enlarged schematic view of a portion D in fig. 4.

Fig. 6 is a schematic perspective view of the drum rotating machine according to the present invention.

Fig. 7 is a side view of the drum machine of the present invention.

FIG. 8 is a schematic sectional perspective view taken along line A-A in FIG. 7.

Fig. 9 is a schematic view of the suction device of the drum machine in the suction or ejection position in accordance with the present invention.

Fig. 10 is a schematic view showing the suction device in the drum machine of the present invention not in the suction or ejection position.

Fig. 11 is a schematic perspective exploded view of a dryer according to the present invention.

Fig. 12 is a front view showing an exploded structure of a dryer in the present invention.

Fig. 13 is an exploded sectional view taken along line B-B in fig. 12.

Fig. 14 is a perspective view of a second seasoning in the dryer of the present invention.

Fig. 15 is a schematic perspective view of a first seasoning in the dryer of the present invention.

Fig. 16 is a top view of a drum in a dryer of the present invention.

Fig. 17 is a perspective view illustrating a clamping shaft in the dryer of the present invention.

Fig. 18 is a perspective view showing the overall structure of the staking machine of the present invention.

Fig. 19 is a side view showing the overall structure of the staking machine of the present invention.

Fig. 20 is a top view of the staking machine of the present invention.

Fig. 21 is a cross-sectional view of C-C in fig. 20.

In the figure:

a drum rotating machine-1; a drum base-11; a first roller-12; a second roller-13;

a drum motor-14; a suction device-15; an exhaust pipe-151; a top abutment block-152;

a pressure spring-153; a first through-hole-154; a second through-hole-155; a third through-hole-156;

a first hose-1571; a second hose-1572; a third hose-1573; a sealing cover-17;

a fourth hose-1574; a first top abutment plate-161; a first support bar-162;

a second anvil plate-163; a second support bar-164; a web-165;

first modulation plate-1661; second modulation plate-1662; a strip-shaped through hole-1663;

rack-1664; gear-1665; rotating handle-1666; an adjustment lever-167;

a dryer-2; a drying cylinder-21; a limiting block-211; infrared ray lamp-2111;

a drying tray-22; a second drying through hole-221; a drying motor-23; drying the rotating shaft-24;

a power transmission block-241; a clamping shaft-25; a socket hole-251; strip cut-252;

a fixed block-253; a power transmission groove-254; a first seasoning-26; a first docking ring-261;

a first abutting block-262; a first air outlet spoke-263; a second seasoning-27;

a second nesting ring-271; a second abutment block-272; a second air outlet spoke-273;

drying the cover-28; a first drying through hole-281; a drying rack-29; a transverse plate-291; a vertical plate-292;

a softening machine-3; softening the base-31; dovetail guide-311; softening the groove-312;

a first carriage-32; a second carriage-33; a drive shaft-331; a driven shaft-332;

a conveyer belt-333; positioning projection-3331; adsorption device-34; an adsorption cylinder-341;

an adsorption through-hole-3411; a first carriage-342; connecting tube-343;

softening the handle-344; -a clamping device-35; a clamping cylinder-351;

a clamping plate-352; an adsorption tube-353; an air outlet device-36; an air outlet cylinder-361;

an air outlet blade-362; an air outlet-364; a second carriage-365;

bracket-3651; slider-3652; an embossing machine-4; flower pressing frame-41;

leveling device-42; a heating plate-421; a flat-422;

a rotary electric machine-4221; -4222 a rotating shaft; monolith-4223; a pressure spring-423;

a central drum-431; an embossing drum-432; a first hot press roll-433;

embossing roll-434; a second heated press roll-435; a first frame plate-4361; a second frame plate-4362;

a third frame plate-4363; thermally conductive rubber-437; a chill roll-44;

a horizontal plate-451; a threaded rod-452; a pressure adjustment handle-453;

a circular stop-454; limiting hole-455.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1-20, a process for producing an antique headskin, wherein the antique headskin is produced by depilation, degreasing, liming, deliming, tanning, fatting, drying, staking, finishing and embossing;

in the embossing step, the scalp is embossed by the embossing machine 4, so that the scalp is embossed more effectively to obtain better embossing effect. Therefore, the embossing machine 4 comprises an embossing frame 41, a leveling device 42, an embossing device and a cooling roller 44, wherein the leveling device 42, the embossing device and the cooling roller 44 are sequentially arranged on the embossing frame 41 in the processing sequence, and the top sheet is sequentially leveled, embossed and cooled; leveling device 42 includes hot plate 421, level and smooth piece 422 and a plurality of pressure spring 423, the vertical equipartition of a plurality of pressure spring 423 is on knurling frame 41, the one end and the knurling frame 41 of pressure spring 423 are connected, the other end of pressure spring 423 is connected with the lower surface of hot plate 421, pressure spring 423 plays the effect that has vibrations under the effect of power, and it is main that leveling piece 422 carries out the application of force to hot plate 421 for hot plate 421 reciprocates, thereby makes the head skin obtain the shake, and the head skin after the shake can be opened, and smooths the head skin under leveling piece 422's rotation, thereby makes the head skin lay and more level and more smooth. The leveling member 422 has the functions of leveling and pushing the scalp, the leveling member 422 comprises a rotating motor 4221, a rotating shaft 4222 and a rotating block 4223, one end of the rotating shaft 4222 is connected with the rotating motor 4221, the other end of the rotating shaft 4222 is connected with the rotating block 4223, the rotating motor 4221 drives the rotating shaft 4222 to rotate, the rotating shaft 4222 is L-shaped, the rotating motor 4221 is obliquely arranged, the rotating block 4223 is driven by the rotating motor 4221 to rotate circumferentially, the embossing device embosses the scalp after leveling, the embossed scalp is cooled by a cooling roller 44, the leveling member 422 has two sets, the two sets of leveling devices 42 are symmetrically distributed on two sides of the heating plate 421, when the scalp passes through the leveling devices 42, the scalp is heated by the heating plate 421 firstly, then the rotating motor 4221 drives the rotating shaft 4222 to rotate, and the rotating motor 4221 is obliquely arranged and the rotating shaft 4222 is L-shaped, the rotating block 4223 is driven by the rotating motor 4221 to have a downward acting force and a forward acting force on the scalp, so that the downward extrusion and the forward pushing of the scalp are realized. The downward extrusion force generates pressure on the compression spring 423, and after the pressure is removed, the compression spring 423 can vibrate in a reciprocating manner, so that the purpose of vibrating the heating plate 421 is achieved, and the effect of leveling the scalp is finally achieved.

Preferably, the embossing device includes a central cylinder 431, an embossing cylinder 432, a first hot-pressing roller 433, an embossing roller 434, a second hot-pressing roller 435, a first frame plate 4361, a second frame plate 4362, and a third frame plate 4363, wherein the first frame plate 4361, the second frame plate 4362, and the third frame plate 4363 are sequentially disposed on the embossing frame 41 in a processing order, the first frame plate 4361, the second frame plate 4362, and the third frame plate 4363 are two, the two first frame plates 4361 are symmetrically disposed at both sides of the embossing frame 41, the first hot-pressing roller 433 is horizontally disposed on the two first frame plates 4361 and rotatably connected with the first frame plates 4361 through a rotating shaft, the first hot-pressing roller 433 plays a role in heating a scalp, the central cylinder 431 is disposed on the embossing frame 41, the central cylinder 431 is disposed inside the embossing cylinder 432, a heat conductive rubber 437 is filled between the central cylinder 431 and the cylinder 432, the embossed scalp is disposed inside the central cylinder 431, and drive central cylinder 431 through rotating the rotation handle and rotate, the skull skin that is located central cylinder 431 plays the effect of softening in advance through preliminary breaking soft, will make the process of softening faster through the operation of softening again, improves the efficiency of softening. Moreover, in the process of pre-softening, the scalp will generate heat, so as to effectively dissipate the heat, avoid the quality of the scalp from being damaged, and fully utilize the heat. Therefore, the heat conducting rubber 437 is filled between the central roller 431 and the embossing roller 432, so that the heat in the central roller 431 is transferred to the embossing roller 432, heat is provided for the embossing process, the heat is fully utilized, and the energy is saved.

Preferably, two pressure adjusting through holes (not shown) are formed in the embossing frame 41, the two second frame plates 4362 are symmetrically arranged, the lower ends of the two frame plates penetrate through the pressure adjusting through holes, the embossing roller 434 is horizontally arranged at the upper parts of the two second frame plates 4362 and is rotatably connected with the second frame plates 4362 through a rotating shaft, the embossing roller 434 is located above the embossing roller 432, and the embossing roller 434 embosses the scalp. Two third frame plates 4363 are symmetrically arranged on two sides of the embossing frame 41, the second hot pressing roller 435 is horizontally arranged on the third frame plates 4363 and is rotationally connected with the third frame plates 4363 through a rotating shaft, and the second hot pressing roller 435 plays a role in further hot pressing the scalp, so that the embossing effect is further firm.

Preferably, the pressure exerted by the embossing roller 434 on the scalp is adjusted to be effective as the actual situation arises, since a difference in the pressure exerted by the embossing roller 434 on the scalp will result in a difference in the embossing effect, and the embossing pressure will also be dependent on the thickness of the scalp. Therefore, the embossing device is further provided with a pressure adjusting device, the pressure adjusting device comprises a horizontal plate 451, a threaded rod 452 and a pressure adjusting handle 453, the horizontal plate 451 is horizontally arranged and connected with the lower ends of the two second frame plates 4362, a threaded through hole (not shown) is arranged on the horizontal plate 451, the threaded rod 452 is matched with the threaded through hole, a circular limiting part 454 is arranged at one end of the threaded rod 452, a limiting hole 455 matched with the circular limiting part 454 is arranged on the lower surface of the embossing frame 41, and the circular limiting part 454 is matched with the limiting hole 455, so that the threaded rod 452 rotates. The other end of the threaded rod 452 is connected to a pressure adjustment handle 453. When the pressure of the embossing roller 434 on the scalp needs to be adjusted, the pressure adjusting handle 453 is rotated, the pressure adjusting handle 453 drives the threaded rod 452 to rotate, the horizontal plate 451 moves upwards or downwards under the matching of the threaded rod 452 and the threaded through hole, the horizontal plate 451 drives the second frame plate 4362 to move upwards or downwards, the second frame plate 4362 drives the embossing roller 434 to move upwards or downwards, finally, the distance between the embossing roller 434 and the embossing roller 432 is changed, and accordingly, the pressure of the embossing roller 434 on the scalp is also changed.

Preferably, the central roller 431 is further provided with a rotating handle, the rotating handle drives the central roller 431 to rotate, the pre-softening effect on the head skin in the central roller 431 is achieved, and the generated heat is applied and transferred to the embossing roller 432, so that the heat is fully utilized, and the energy is saved.

Preferably, in the steps of dehairing, degreasing and liming, the scalp is finished in the drum machine 1, the drum rotating machine 1 comprises a drum base 11, a first roller 12, a second roller 13, a drum motor 14 and a suction device 15, the first roller 12 is arranged on the roller base 11, the diameter of the first roller 12 is larger than that of the second roller 13, the second roller 13 is arranged inside the first roller 12, one end of the second roller 13 is a closed end, the other end of the second roller 13 is an open end, a sealing cover 17 is arranged on the open end, the central axis of the second roller 13 and the central axis of the first roller 12 are located on the same vertical plane and the horizontal height of the central axis of the first roller 12 is higher than the horizontal height of the central axis of the second roller 13, so that the distance from the outer surface of the second roller 13 to the inner surface of the first roller 12 is different. The drum motor 14 is disposed on the drum base 11 and drives the second drum 13 to rotate, the rotating second drum 13 drives the suction device 15 disposed on the second drum 13 to rotate, and the suction device 15 extends and retracts in the second drum 13 due to the difference in distance between the outer surface of the second drum 13 and the inner surface of the first drum 12 during the rotation process of the suction device 15. The head skin is equipped with in the second cylinder 13, suction means 15 establishes on second cylinder 13 and is used for absorbing and spouting the head skin in the second cylinder 13, after absorbing the head skin, through the rotation of second cylinder 13, drive the top of second cylinder 13 with the head skin, spout the head skin again, the head skin is under the dual function of self gravity and the action force stack of second air jet system to the head skin, the impact force to the head skin has been increaseed, thereby make the head skin can be abundant depilate, degrease or soak the ash.

Preferably, the suction device 15 includes an air exhaust pipe 151, a supporting block 152, a pressure spring 423, a first air exhaust device (not shown in the figure) and a second air injection device (not shown in the figure), a first through hole 154 is provided in the circumferential direction of the first drum 12, a second through hole 155 corresponding to the first through hole 154 is provided in the circumferential direction of the second drum 13, a third through hole 156 is provided on the supporting block 152, one end of the air exhaust pipe 151 passes through the second drum 13, the other end of the air exhaust pipe 151 is connected with the supporting block 152 and is communicated with the third through hole 156 on the supporting block 152, the pressure spring 423 is sleeved on the air exhaust pipe 151, one end of the pressure spring 423 is connected with the supporting block 152, the other end of the pressure spring 423 is connected with the outer circumferential wall of the second drum 13, a first hose 1571 and a second hose 1572 are further provided on the outer circumference of the first drum 12, the first hose 1571 is vertically provided below the first drum 12, the second hose 1572 is vertically arranged above the first roller 12, the first hose 1571 is connected with the first air extractor, and the second hose 1572 is connected with the second air injector.

After adopting the above structure, the main process of dehairing, degreasing or liming the scalp is to put the scalp from the open end of the second roller 13, add the materials required for dehairing, degreasing or liming, and then rotate the upper sealing cover 17, and the sealing cover 17 seals the open end of the second roller 13. The second drum 13 is then rotated by the drum motor 14, and the suction devices 15 on the second drum 13 follow the rotation by the rotation of the second drum 13. And because the distance from the outer surface of the second roller 13 to the inner surface of the first roller 12 is different, the pressure applied to the compression spring 423 on the suction device 15 in the rotating process is different, and the abutting block 152 is always abutted against the inner surface of the first roller 12 under the action of the compression spring 423. Moreover, the distance between the outer surface of the second drum 13 and the inner surface of the first drum 12 is different, so that the length of the air extraction pipe 151 extending into the second drum 13 is different, when the first drum 12 and the second drum 13 are at the bottom, the distance between the first drum 12 and the second drum 13 is shortest, and the length of the air extraction pipe 151 extending into the second drum 13 is longer; at the top of the first drum 12 and the second drum 13, the distance between the first drum 12 and the second drum 13 is the longest, and the length of the exhaust duct 151 extending into the second drum 13 becomes shorter.

Thus, when the extraction duct 151 is at the bottom of the second drum 13, the first suction device sucks the scalp through the extraction duct 151, and the extraction duct 151 also hangs the scalp through its own tube body. After second cylinder 13 rotates, exhaust column 151 is rotatory to the top of second cylinder 13, and second air jet system spouts the first skin of taking out to in exhaust column 151 through exhaust column 151, and spun first skin has increaseed the impact force to the first skin under the dual function of gravity and power of spouting for the unhairing of first skin, degrease or liming can fully go on, avoid carrying out the secondary operation and reduce efficiency. And the head skin hung up by the exhaust duct 151 also drops under the effect of gravity simultaneously, consequently, the homoenergetic of the head skin that is located in the second cylinder 13 receives the effect of exhaust duct 151, and reaches abundant effect of unhairing, degrease or liming to improve production efficiency greatly.

Preferably, in order to facilitate the extraction of the treated top sheet from the second roller 13, the first roller 12 is further provided with an angle adjusting device. The angle adjusting device comprises a first top abutting plate 161, a first supporting rod 162, a second top abutting plate 163, a second supporting rod 164, a connecting plate 165, an adjusting base and an adjusting rod 167, wherein the first top abutting plate 161 abuts against the front part of the first roller 12, the second top abutting plate 163 abuts against the rear part of the first roller 12, two adjusting through holes (not shown) are further arranged on the roller base 11, the two adjusting through holes are located in the front-back direction of the roller base 11, one end of the first supporting rod 162 passes through the adjusting through hole in the front direction and then is connected with the first top abutting plate 161, one end of the second supporting rod 164 passes through the adjusting through hole in the rear direction and then is connected with the second top abutting plate 163, the first top abutting plate 161 and the second top abutting plate 163 are symmetrically arranged in an L shape, the first top abutting plate 161 abuts against the bottom and the front part of the first roller 12, and the second top abutting plate 163 abuts against the bottom and the rear part of the first roller 12, the abutment of the first roller 12 by the first abutting plate 161 and the second abutting plate 163 prevents the first roller 12 from slipping down after the inclination occurs. The connecting plate 165 is horizontally placed and rotatably connected with the other end of the second support rod 164 and the other end of the first support rod 162, the adjusting base is positioned below the rotary drum base 11, and the adjusting base is arranged along the front-back direction;

preferably, the adjusting base comprises a first adjusting plate 1661 and a second adjusting plate 1662, the first adjusting plate 1661 and the second adjusting plate 1662 are both provided with a through-bar-shaped hole 1663, racks 1664 are arranged on the lower surfaces of the through-bar-shaped holes 1663 on the first adjusting plate 1661 at equal intervals, the adjusting rod 167 horizontally passes through the through-bar-shaped holes 1663 on the first adjusting plate 1661 and the second adjusting plate 1662 from left to right, a gear 1665 engaged with the racks 1664 on the first adjusting plate 1661 is further arranged on the adjusting rod 167, and the adjusting rod 167 abuts against the lower surface of the connecting plate 165; the adjusting lever 167 is further provided with a rotating handle 1666.

After the angle adjusting device is adopted, when the scalp in the second roller 13 needs to be taken out, the handle 1666 is rotated counterclockwise, the adjusting rod 167 is moved in the backward direction through the cooperation of the gear 1665 on the adjusting rod 167 and the rack 1664, the abutting position of the adjusting rod 167 and the connecting plate 165 is also moved in the backward direction, so that the adjusting rod 167 is no longer located in the middle of the connecting plate 165, the two ends of the connecting plate 165 are no longer in a stress balance state, after the adjusting rod 167 is moved in the backward direction, the connecting plate 165 rotates, the first supporting rod 162 is moved downward, the front portion of the first roller 12 is further tilted downward, the open end on the second roller 13 is driven to tilt downward, and finally the scalp in the second roller 13 is slid toward the open end of the second roller 13, so that the scalp can be taken out conveniently. After the rotating handle 1666 is rotated clockwise, the adjusting rod 167 again abuts against the middle part of the connecting plate 165, the two ends of the connecting plate 165 are stressed in balance, the first roller 12 is restored to the horizontal state, and the next processing of the scalp is completed.

Preferably, in order to reduce the falling of the head skin after the air exhaust pipe 151 sucks the head skin in the process of rotating the second roller 13, the height difference is insufficient, and the impact force is reduced. The first roller 12 is further provided with a third hose 1573 and a fourth hose 1574, the third hose 1573 and the fourth hose 1574 are symmetrically arranged on the left and right sides of the first roller 12, the third hose 1573 and the fourth hose 1574 are both communicated with a drum air extractor (not shown), the number of the suction devices 15 is four, the four suction devices 15 are arranged on the second roller 13 at equal intervals, and each suction device 15 is communicated with the first hose 1571, the third hose 1573, the second hose 1572 and the fourth hose 1574 in the rotating process. Through the arrangement of the third hose 1573 and the fourth hose 1574, in the rotating process of the second roller 13, the head skin on the exhaust pipe 151 can be sucked again, the head skin in the rotating process is prevented from sliding off, and the second roller 13 can rotate anticlockwise or clockwise due to the symmetrical arrangement of the third hose 1573 and the fourth hose 1574.

Preferably, in the drying step, the scalp is dried by the dryer 2, and for better drying of the scalp and reduction of shrinkage of the scalp. Consequently, dryer 2 includes that drying cylinder 21, stoving dish 22, stoving motor 23, dry pivot 24, press from both sides tight axle 25, first air-dry 26 and second air-dry 27, the vertical lower surface of establishing at stoving dish 22 of stoving motor 23, dry pivot 24 is established the upper surface of stoving dish 22, stoving motor 23 drives dry pivot 24 rotates, drying cylinder 21 butt is at the upper surface of stoving dish 22, the equidistant a plurality of stopper 211 that is equipped with on the inner peripheral surface of drying cylinder 21, a plurality of stopper 211 all with drying cylinder 21 with the axial setting, press from both sides tight axle 25 and be used for pressing from both sides tight one side of butt skin, first air-dry 26 and second air-dry 27 covers and establish on pressing from both sides tight axle 25 and still air-dry the butt skin when pressing from both sides the another side of tight butt skin with stopper 211 cooperation.

After adopting above-mentioned drying-machine 2, when the first skin will be dried, take out the first skin and press from both sides tightly on clamping shaft 25 with one side of first skin, and will first air-dry 26 pass dry pivot 24 and arrange drying disc 22 in, will accompany the clamping shaft 25 cover of first skin and establish behind dry pivot 24 and make the surface of clamping shaft 25 and the internal surface looks butt of the first lantern ring 261 on the first air-dry 26, clamping shaft 25 plays the clamping effect to the first skin through the looks butt effect with first lantern ring 261, make the first skin not deviate from clamping shaft 25, and play the clamping effect to the first skin another side through pressing from both sides the another side of first skin between first top-supporting piece 262 and stopper 211. Then, the second drying member 27 is sleeved on the clamping shaft 25 and the fixing block 253 at the upper end of the clamping shaft 25 abuts against the second drying member, and the other side of the scalp is further clamped by the cooperation of the second abutting block 272 on the second drying member 27 and the limiting block 211.

Then the drying motor 23 rotates clockwise to drive the drying rotating shaft 24 to rotate, the drying rotating shaft 24 drives the clamping shaft 25 to rotate, and the clamping shaft 25 drives the head layer leather to rotate. Because one side of the head skin is fixed on the clamping shaft 25, and the other side of the head skin is fixed on the drying drum 21, the rotating clamping shaft 25 drives the drying drum 21 to rotate by the head skin. When the top layer leather plays a role in pulling the drying drum 21 to rotate, the top layer leather also plays a role in stretching the top layer leather, so that the shrinkage rate after drying is reduced. Moreover, the rotating drying cylinder 21 drives the first air drying part 26 and the second air drying part 27 to rotate, and the first air drying part 26 and the second air drying part 27 generate wind power in the rotating process to play a role in air drying the scalp, so that the whole drying process of the scalp is accelerated.

Preferably, the clamping shaft 25 is provided with a sleeve hole 251, a strip-shaped notch 252 and a fixing block 253, the sleeve hole 251 extends from one end of the clamping shaft 25 to the other end of the clamping shaft 25, the clamping shaft 25 is sleeved on the drying rotating shaft 24 through the sleeve hole 251 and rotates along with the drying rotating shaft 24, the fixing block 253 is horizontally arranged on the clamping shaft 25 and close to one end of the clamping shaft 25, the strip-shaped notch 252 communicates the clamping shaft 25 and the sleeve hole 251 in the radial direction, the strip-shaped notch 252 extends from the other end of the clamping shaft 25 to the fixing block 253 along the axial direction of the clamping shaft 25, and the strip-shaped notch 252 is used for clamping one side of the scalp. Two head skins are simultaneously clamped by one strip-shaped notch 252, wherein one side of one head skin is clamped by the strip-shaped notch 252, and the other side of the head skin is clamped by the matching of the first propping block 262 and the limited block 211 positioned in the anticlockwise direction; and one side of the other scalp is clamped by the same strip-shaped notch 252, and the other side is clamped by the cooperation of the first abutting block 262 and the limiting block 211 positioned in the clockwise direction thereof. Therefore, one strip-shaped notch 252 can clamp two head skins, the two head skins are spaced from each other, the number of the dried head skins is increased, and meanwhile, each head skin can be effectively dried.

Preferably, the first air drying part 26 includes a first engaging ring 261, a first abutting block 262 and a first air outlet spoke 263, the first engaging ring 261 is used for engaging with the clamping shaft 25, the thickness of the first abutting block 262 is greater than that of the first engaging ring 261, so that the first abutting block 262 can cooperate with the limiting block 211 to clamp the skull skin, the first abutting block 262 and the first air outlet spoke 263 are provided with a plurality of parts, the first abutting blocks 262 and the limiting blocks 211 are matched and used for clamping the other end of the skull skin, the first air outlet spokes 263 are in one-to-one correspondence with the first abutting blocks 262, one end of the first air outlet spoke 263 is connected with the first abutting block 262, the other end of the first air outlet spoke 263 is connected with the first engaging ring 261, the cross section of the first air outlet spoke 263 is arc-shaped and generates upward wind when rotating clockwise, the air drying effect on the scalp above the scalp is achieved by generating upward wind.

Preferably, the second air drying member 27 includes a second sleeving ring 271, a second abutting block 272 and a second air outlet spoke 273, the second sleeving ring 271 is used for sleeving on the clamping shaft 25 and abutting against the upper surface of the fixing block 253, the thickness of the second abutting block 272 is greater than that of the second sleeving ring 271, so that the second abutting block 272 can be matched with the limiting block 211 to clamp the skull skin, the second abutting block 272 and the second air outlet spoke 273 are respectively provided with a plurality of blocks, the plurality of second abutting blocks 272 are matched with the plurality of limiting blocks 211 and are used for clamping the other side of the skull skin, the plurality of second air outlet spokes 273 are in one-to-one correspondence with the plurality of second abutting blocks 272, one end of the second air outlet spoke 273 is connected with the second abutting block 272, the other end of the second air outlet spoke 273 is connected with the second sleeving ring 271, the cross section of the second air outlet spoke 273 is arc-shaped and generates a downward wind when rotating clockwise, the air drying effect on the skull skin positioned below the wind-driven generator is achieved by generating downward wind.

Preferably, each limiting block 211 is further provided with a plurality of infrared bulbs 2111 and a plurality of batteries arranged from top to bottom, each infrared bulb 2111 is correspondingly connected with one battery, and the temperature in the drying cylinder 21 is increased by setting the infrared bulb 2111 and further by the irradiation effect of the infrared bulb 2111, so that the drying effect on the scalp is achieved.

Preferably, the drying rotating shaft 24 is further provided with two power transmission blocks 241, the two power transmission blocks 241 are symmetrically and vertically arranged on the outer peripheral surface of the drying rotating shaft 24, the sleeving hole 251 of the clamping shaft 25 is provided with two power transmission grooves 254, the two power transmission grooves 254 are respectively matched and corresponding to the two power transmission blocks 241, and the drying rotating shaft 24 can drive the clamping shaft 25 to rotate through the matching of the power transmission grooves 254 and the power transmission blocks 241.

Preferably, the drying drum 21 is further provided with a drying cover 28, the drying cover 28 covers the upper surface of the drying drum 21, the drying cover 28 is provided with a first drying through hole 281, and the drying disk 22 is further provided with a second drying through hole 221. The air in the drying drum 21 can flow through the arrangement of the first drying through hole 281 and the second drying through hole 221, so that the temperature in the drying drum 21 can be better controlled, and the damage of the scalp caused by excessive drying is avoided.

Preferably, a drying rack 29 is further disposed at the bottom of the drying tray 22, the drying rack 29 includes a horizontal plate 291 and a vertical plate 292, one end of the horizontal plate 291 is connected to the drying tray 22, the other end of the horizontal plate 291 is connected to the vertical plate 292, and the drying rack 29 plays a role in supporting the drying cylinder 21.

Preferably, in the step of softening, the softening of the scalp is completed by the softening machine 3, and in order to rapidly and uniformly soften the scalp, the softening efficiency of the scalp is improved and the softening quality of the scalp is further improved. Therefore, staking machine 3 is including staking base 31, first carriage 32, adsorption equipment 34 and clamping device 35 are all established on staking base 31, adsorption equipment 34 is located the top of first carriage 32, clamping device 35 is located the direction of delivery's of first carriage 32 rear, adsorption equipment 34 is used for adsorbing one side of taut first layer skin, clamping device 35 is used for pressing from both sides the another side of tight first layer skin, realizes staking and automatic transport to the first layer skin through adsorption equipment 34, clamping device 35 and first carriage 32's cooperation.

Preferably, the adsorption device 34 includes an adsorption cylinder 341, a first sliding rack 342, a connecting pipe 343, a first air extractor (not shown) and a staking handle 344, the dovetail groove guide rails 311 are respectively arranged on two side surfaces of the staking base 31, the first sliding rack 342 is slidably connected with the dovetail groove guide rails 311, and the position of the first sliding rack 342 on the dovetail groove guide rails 311 is adjusted according to the size of the staking head skin and the degree of staking required from the staking skin. The adsorption cylinder 341 is horizontally disposed on the first carriage 342, and a plurality of adsorption through holes 3411 are further disposed on the outer circumferential surface of the adsorption cylinder 341, and the adsorption through holes 3411 communicate with the outside and the inside of the adsorption cylinder 341, so that the scalp is adsorbed through the adsorption through holes 3411. The first sliding frame 342 is further provided with a connecting through hole (not shown), one end of the connecting through hole is communicated with the inside of the adsorption cylinder 341, the other end of the connecting through hole is communicated with one end of the connecting pipe 343, the other end of the connecting pipe 343 is connected with a first air extractor, and the staking handle 344 is arranged on the adsorption cylinder 341 and is used for rotating the adsorption cylinder 341.

After the softening machine 3 is adopted, when the scalp is to be softened, the dried scalp is only required to be flatly laid on the first conveying frame 32, the dried scalp is conveyed by the conveying belt 333 on the first conveying frame 32, when the scalp is conveyed to the lower part of the adsorption cylinder 341, the adsorption cylinder 341 adsorbs one side of the scalp, the other side of the scalp is continuously conveyed by the conveying belt 333 and finally the other side of the scalp is clamped by the clamping device 35. Then, the handle 344 is pulled soft by manual rotation, so that the scalp adsorbed on the adsorption cylinder 341 starts to be wound around the adsorption cylinder 341. After one turn around the adsorption cylinder 341, there will be a friction between the scalp when it is pulled by the adsorption cylinder 341. Therefore, the head skin is uniformly softened by rotating the adsorption cylinder 341, and the position of the first carriage 342 and thus the position between the adsorption cylinder 341 and the clamping device 35 are properly adjusted according to the degree of softening to be achieved by the head skin, so as to achieve the most proper softening effect.

Preferably, in order to provide effective gripping of the other side of the scalp. Therefore, the staking base 31 is further provided with a staking groove 312, the staking groove 312 is located at the rear part of the first conveying frame 32, the clamping device 35 is arranged in the staking groove 312, the clamping device 35 comprises a clamping cylinder 351, a clamping plate 352, a suction pipe 353 and a second air suction device, the clamping cylinder 351 is horizontally arranged, the clamping plate 352 is connected with a piston rod on the clamping cylinder 351, one end of the suction pipe 353 is connected with the second air suction device, and the other end of the suction pipe 353 is communicated with the staking groove 312. After the scalp is transported by the first carriage 32, one side of the scalp is adsorbed by the adsorption cylinder 341 and the other side of the scalp is transported to the end of the first carriage 32 by the first carriage 32. Then, the scalp is sucked by the suction pipe 353 in the clamping device 35, so that the scalp falls into the staking recess 312, and the clamping cylinder 351 pushes the clamping plate 352 to move, so that the scalp is clamped by the cooperation of the clamping plate 352 and the staking recess 312. Furthermore, the clamping cylinder 351 is further provided with a control switch (not shown) for controlling the extension and retraction of the piston rod in the clamping cylinder 351.

Preferably, in order to make the whole softening process more automatic, therefore, an air outlet device 36 is further provided on the softening base 31, the air outlet device 36 is located above the first conveying frame 32, the air outlet device 36 includes an air outlet cylinder 361, an air outlet blade 362, an air outlet motor (not shown), an air outlet 364 and a second sliding frame 365, the second sliding rack 365 is connected with the dovetail groove guide rail 311 in a sliding manner, the air outlet cylinder 361 is horizontally arranged on the second sliding rack 365 and is connected with the second sliding rack 365 in a rotating manner, the air outlet blade 362 is arranged in the air outlet cylinder 361, the air outlet motor drives the air outlet blade 362 to rotate, the air outlet 364 is arranged on the air outlet cylinder 361, the air outlet motor drives the air outlet blade 362 to rotate, the air generated by the air outlet blade 362 is blown out from the air outlet 364 on the air outlet cylinder 361, because the outlet cylinder 361 is rotatably connected with the second sliding frame 365, the angle of the air outlet 364 on the outlet cylinder 361 can be adjusted according to actual requirements. The air outlet device 36 mainly functions to prevent one side of the scalp from being subjected to a restraining force after the suction device 34 on the first carriage 32 stops performing the softening suction on the one side of the scalp. At this time, one side of the softened scalp is blown by the air blowing device 36 so that the one side of the scalp is blown onto the second carriage 33 by the first carriage 32 and is conveyed to the adsorption device 34 located above the second carriage 33 by the second carriage 33, the scalp is softened again by rotating the adsorption cylinder 341 on the adsorption device 34, and after the scalp is softened, the adsorption force of the adsorption cylinder 341 on the scalp is released, the grip plate 352 is released from the scalp by controlling the switch, and finally the scalp is conveyed to the next process under the conveyance of the second carriage 33.

The adsorption force of the adsorption cylinder 341 and the adsorption tube 353 can be realized by an adsorption switch (not shown), so that the control without the adsorption force is realized, and the operation of the whole process is facilitated.

Preferably, the first sliding frame 342 and the second sliding frame 365 each include a bracket 3651 and two sliding blocks 3652, the two sliding blocks 3652 and the two sliding blocks 3651 are respectively connected with the dovetail groove guide rails 311 on both sides of the staking base 31 in a sliding manner, the two brackets 3651 are vertically arranged, and one end of each bracket 3651 is connected with the sliding block 3652.

Preferably, still be equipped with second carriage 33 on the staking out base 31, the rear at clamping device 35 is established to second carriage 33, first carriage 32 and second carriage 33 all include conveyer belt 333, driving shaft 331, driven shaft 332 and conveying motor (not shown), conveyer belt 333 cover is established on driving shaft 331 and driven shaft 332, conveying motor drives driving shaft 331 and rotates, driving shaft 331 drives conveyer belt 333 and removes, the upper surface of conveyer belt 333 still is equipped with the protruding 3331 in location, the protruding 3331 in location is conical, the protruding 3331 in location has a plurality of, and the protruding 3331 equipartition in a plurality of location makes the effectual tiling of first layer skin ability on conveyer belt 333 through the setting of the protruding 3331 in location, the top of second carriage 33 still is equipped with adsorption equipment 34.

Preferably, the printing top layer leather is prepared by the processing technology of the printing top layer leather.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. The processing technology of the printing top layer leather is characterized in that the printing top layer leather is processed by the steps of unhairing, degreasing, liming, deliming, tanning, greasing, drying, softening, coating and embossing;

in the embossing step, the top sheet is embossed by an embossing machine, the embossing machine comprises an embossing frame, a leveling device, an embossing device and a cooling roller, and the leveling device, the embossing device and the cooling roller are sequentially arranged on the embossing frame in the processing sequence; the leveling device comprises a heating plate, a leveling piece and a plurality of pressure springs, the pressure springs are vertically and uniformly distributed on the flower pressing frame, one end of each pressure spring is connected with the embossing frame, the other end of each pressure spring is connected with the lower surface of the heating plate, the leveling piece achieves leveling and pushing of the scalp, the leveling piece comprises a rotating motor, a rotating shaft and a leveling block, one end of the rotating shaft is connected with the rotating motor, the other end of the rotating shaft is connected with the leveling block, the rotating motor drives the rotating shaft to rotate, the rotating shaft is L-shaped, the rotating motor is obliquely arranged, the leveling block is driven by the rotating motor to rotate circumferentially, the embossing device embosses the scalp after leveling, and the embossed scalp is cooled by a cooling roller;

the embossing device comprises a central roller, an embossing roller, a first hot pressing roller, an embossing roller, a second hot pressing roller, a first frame plate, a second frame plate and a third frame plate, wherein the first frame plate, the second frame plate and the third frame plate are sequentially arranged on the embossing roller frame through a processing sequence, the number of the first frame plate, the second frame plate and the third frame plate is two, the two first frame plates are symmetrically arranged at two sides of the embossing roller frame, the first hot pressing roller is horizontally arranged on the two first frame plates and is rotationally connected with the first frame plates through a rotating shaft, the central roller is arranged on the embossing roller frame, the central roller is arranged inside the embossing roller, heat-conducting rubber is filled between the central roller and the embossing roller, the embossing roller frame is provided with two pressure adjusting through holes, the two second frame plates are symmetrically arranged, the lower ends of the two second frame plates penetrate through the pressure adjusting through holes, the embossing roller is horizontally arranged at the upper parts of the two second frame plates and is rotationally connected with the second frame plates through a rotating, the embossing rollers are positioned above the embossing roller, the two third frame plates are symmetrically arranged on two sides of the embossing roller frame, and the second hot pressing rollers are horizontally arranged on the third frame plates and are rotationally connected with the third frame plates through rotating shafts;

the embossing device is further provided with a pressure adjusting device, the pressure adjusting device comprises a horizontal plate, a threaded rod and a pressure adjusting handle, the horizontal plate is horizontally arranged and is connected with the lower ends of the two second frame plates, a threaded through hole is formed in the horizontal plate, the threaded rod is matched with the threaded through hole, a circular limiting part is arranged at one end of the threaded rod, a limiting hole matched with the circular limiting part is formed in the lower surface of the embossing frame, the circular limiting part is matched with the limiting hole, and the other end of the threaded rod is connected with the pressure adjusting handle; the central roller is also provided with a rotating handle.

2. A printed top skin, characterized in that it is produced by a process according to claim 1.