26results about "Leather softening" patented technology

The invention relates to the technical field of leather processing, in particular to a leather softening device for leather processing, which comprises a rotary drum mechanism, a first side plate mechanism and a second side plate mechanism are respectively arranged on two sides of the rotary drum mechanism, and a baffle mechanism and a filter drum mechanism which are uniformly distributed in a surrounding manner are arranged on the inner side of the rotary drum mechanism. Flexible roller mechanisms which are uniformly distributed in a surrounding manner are arranged on the periphery of the filter cartridge mechanism; by arranging the baffle mechanism capable of swinging back and forth, a baffle can be driven to swing back and forth in the rotating process of the rotary drum, so that leather is continuously collided, beaten and rubbed in the V-shaped groove, the mechanical softening effect of the leather is enhanced, the permeation uniformity of a chemical agent is also improved, and the softening efficiency and quality are improved; by arranging the flexible roller mechanism, the rubbing roller rotates while rotating along with the whole rotating drum, the multi-direction and multi-angle rubbing effect on the leather is achieved, particularly, secondary rubbing is conducted in the leather falling process, the fiber structure is further loosened, and the softening uniformity is enhanced.

The present application relates to the leather processing technical field, specifically to a kind of processing technology for improving leather luggage easy to crack, comprising the following steps: S1: selecting raw leather, preliminary treatment is carried out to remove surface impurities, and adjust moisture content;S2: the leather after S1 processing is soaked in natural plant oil solution;S3: the leather after soaking is treated with sound wave;S4: heat pressing treatment is carried out, and the gap between leather fibers is sealed;S5: the leather after heat pressing treatment is cooled and cured;S6: using nanoscale filler, the leather after curing is filled;S7: the leather after filling is treated with final surface coating, and protective layer is formed.The present application, by comprehensive treatment method, significantly improves the flexibility, waterproofness, pressure resistance and crack resistance of leather, while using environmentally friendly materials to optimize cost, effectively prolongs the service life of leather products and reduces environmental impact.

The utility model discloses a kind of leather moisture regaining machines, including moisture regaining machine main body, the total gas supply pipeline of one side of moisture regaining machine main body extends, the moisture regaining operation rack is provided at the one side of moisture regaining machine main body, the total gas supply pipeline of moisture regaining machine shell is provided with shunt gas supply seat, the shunt gas supply seat is installed on moisture regaining machine rack;The utility model relates to the field of leather processing technology, the leather moisture regaining machine, linear conveying device is used to make leather one-way through the air outlet of moisture regaining machine main body, shunt gas supply seat is provided on the air outlet of moisture regaining machine, under the guidance of shunt gas supply seat Guiding shunt effect, improve the uniformity of moisture regaining and moisture regaining effect, and then shunt gas supply seat is provided with the flow guide device of steam recovery, can recover the heat in steam, improve heat utilization rate.

The invention relates to a preparation process of chitosan-based ecological leather. The preparation process comprises the following steps: softening bare leather, tanning with chitosan, tanning with vegetable, tanning with zeolite, rewetting, filling, dyeing and fat liquoring, drying and finishing, and finishing. Chitosan tanning, vegetable tanning, zeolite tanning and other chrome-free combined tanning processes are adopted, the defect that single chrome-free tanning is poor in tanning performance is overcome, chrome tanning can be replaced, and tanning chrome pollution is avoided from the source.

The utility model relates to the technical field of leather processing, and discloses a luggage leather softening device which comprises a first supporting plate, a first polished shaft, a second supporting plate, a third supporting plate, a first linear sliding table, a fourth supporting plate, a second linear sliding table, a fifth supporting plate, a pressing piece and a driving piece. And the driving part is controlled to work, so that the pressing parts do reciprocating motion in the axial direction of the first optical shaft, and leather placed on the top face of the first supporting plate is continuously pressed. And a first linear sliding table is controlled to work, so that a fourth supporting plate can be driven to move, finally, a plurality of pressing pieces move in the width direction of the first supporting plate, and therefore leather with different widths can be pressed conveniently. The second linear sliding table is controlled to work, the fifth supporting plate can be driven to move, and finally the multiple pressing pieces move in the length direction of the first supporting plate. And the multiple pressing pieces can move to the gap between every two adjacent pressing pieces, so that the pressing blind area is eliminated, and the whole surface of the leather is pressed.

The utility model discloses a leather stretching and flattening device for leather product production, which belongs to the technical field of leather product production and comprises a worktable, expanded edges are arranged on three sides of the bottom end of the worktable, supporting legs are fixedly mounted at four corners of the bottom end of each expanded edge, and a fixing seat is fixedly mounted on one side of the top end of the worktable. And a positioning compression roller is rotationally mounted at the upper end in the fixed seat. A second motor is started to enable a second threaded rod to rotate, then a stretching frame moves along a second sliding groove to stretch and unfold leather, then a first motor is started to enable a first threaded rod to rotate so as to enable two limiting arms and a lifting frame to move along a first sliding groove, and meanwhile two hydraulic columns extend at the same time so that a pressing frame can press down and flatten the leather. And electric heating rods are fixedly arranged on the two sides of the interior of the pressing frame, softening and re-shaping of the leather are facilitated, an air cylinder extends to enable a flattening roller to stretch out of the interior of a storage groove, the pressing strength on the leather is enhanced, and the wrinkle area of the leather is shaped and flattened emphatically.

This invention relates to the field of leather processing technology and discloses a tanning process for all-vegetable tanned cowhide floor leather, comprising the following steps: pre-treating raw hides followed by acid immersion pre-tanning, tanning, intermediate treatment, retanning, and post-treatment to obtain finished leather; a first pre-tanning agent is added during the acid immersion pre-tanning process; the tanning process includes the following steps: adding water and the first tanning agent to a groove and rotating; adding a second tanning agent and rotating; adding a third tanning agent and rotating; adding a fourth tanning agent and rotating; adding a fifth tanning agent and rotating; then transferring to a drum, adding water and a sixth tanning agent and rotating; adding a seventh tanning agent and rotating; the retanning process includes the addition of a first retanning agent and a second retanning agent. This invention uses a combination of groove immersion and drum tanning, which greatly shortens the tanning time, reduces the floor space required, and saves labor costs.

The invention relates to a chrome-free tanning leather production method and system, and the method comprises the following steps: S1, grouping raw leather, and carrying out pre-soaking, fleshing, main soaking, liming, leather splitting, deliming and softening treatment to produce bare leather; s2, pH adjustment, salt-free and pickling-free Tara tanning, zeolite tanning and standing are conducted on the bare skin, and tanned white skin is produced; s3, wringing, shaving, washing, neutralizing, filling and retanning, filling, dyeing, fat liquoring and fixing are conducted on the tanned white leather, and wet leather is produced; s4, the wet leather is subjected to wringing stretching, vacuum drying, hanging airing and humidifying drying, and dry leather is produced; and S5, the dry leather is subjected to standing, water returning, standing, water returning, standing, vibration staking, crust milling, dry toggling flattening and transfer coating, and finished leather is produced. The method has the beneficial effects that the tara tanning material and the zeolite tanning agent are used for salt-free and pickling-free combined tanning, traditional chrome tanning is replaced, a chrome-free and formaldehyde-free process is achieved, the finished leather has the fullness of vegetable tanning leather and the flexibility and elasticity of chrome tanning leather, and the wet heat stability is closer to the high-quality application performance such as chrome tanning leather.

The utility model discloses a kind of softening equipment for leather production, belong to leather softening technical field, including bottom plate, the top of bottom plate is fixedly connected with work plate, the top of work plate is fixedly connected with pillar, pillar is fixedly connected with slide bar on, the side surface of slide bar is slidably connected with sliding block, the side of sliding block is fixedly connected with filter frame, filter frame is equipped with slot on one side, filter plate is inserted in the inside of slot, the top of bottom plate is fixedly connected with electric push rod, the movable end of electric push rod is fixedly connected with traction block, the side of traction block is fixedly connected with softening bucket, through slot and drop groove respectively being equipped on work plate;Through the cooperation of above each device, the filter frame can be with the leather that softening is finished and is slid to the just above of collection frame, after filter plate inside filter frame is extracted, leather will directly fall into collection frame, and the leather collection work is simplified, and the burden of staff is reduced.

The utility model relates to a full-automatic octagonal milling drum with a ventilation device, which comprises a mounting frame, an octagonal milling drum body is arranged in the mounting frame, a ventilation pipe is fixedly mounted on one side of the octagonal milling drum body, the ventilation pipe is communicated with the octagonal milling drum body, and an exhaust fan is arranged in the ventilation pipe; the side frame is installed at one end of the ventilation pipe in a hinged mode, a side groove is formed in one side of the side frame, and a filter screen is movably connected into the side groove in a sleeved mode; the limiting assembly is arranged in the side frame and used for limiting the filter screen; the adjusting assembly is arranged on the ventilation pipe and used for driving the side frame to rotate, when the exhaust fan is overhauled, the motor can be started to drive the lead screw to rotate, the lead screw rotates to drive the moving table to move, the moving table pulls the side frame to rotate through a steel wire rope when moving, and when the side frame is unfolded, the exhaust fan in the ventilation pipe can be overhauled; and the convenience of overhauling the exhaust fan is enhanced, and the device is relatively practical.

The utility model provides a leather softening device, which relates to the technical field of leather processing, and comprises two brackets, the two brackets are positioned on the ground to support the whole, a same conveyor belt is arranged between the two brackets, the conveyor belt can convey leather, a compression roller is rotatably connected to the brackets by virtue of a support plate, and the compression roller is arranged on the support plate. Wherein the pressing roller is a hollow roller, the motor is installed on the supports and drives the pressing roller to rotate through the speed reducer, the pressing roller can roll leather on the conveying belt when the pressing roller rotates, the heating device is fixedly installed on one support, and the heating device can heat the interior of the pressing roller when the pressing roller rotates. The knocking device is arranged on the two supports, the knocking device can knock leather on the conveying belt when the pressing roller rotates, the heating device comprises a fixing box, the effect of heating the leather on the conveying belt is achieved through the heating device, the leather becomes hot, and then softening of the leather is facilitated.

The utility model discloses a leather strip rubbing mechanism for leather processing, which comprises a base, a fixing block is fixedly welded on the upper end face of the base, a screw is connected inside the fixing block through threads, and the leather strip rubbing mechanism for leather processing drives a pressing plate to press the lower end of a leather strip on the side face of the fixing block by rotating and screwing the screw, so that the position of the leather strip is conveniently fixed. Through the design of a pressing plate and a fixing block, the leather strip can be fixed, the friction sleeve is prevented from floating outwards during longitudinal movement and affecting normal rubbing, and the pressing plate is separated from and tightly presses the lower end of the leather strip by rotating a loosening screw, so that the leather strip is conveniently moved upwards to be detached; the connecting rod and the sliding block are driven to rotate by rotating the bolt, the outer side of the friction sleeve is conveniently adjusted to be tightly attached to the inner side of the leather strap, and the design of the sliding block, the connecting rod, the bolt and the friction sleeve can effectively prevent the leather strap from loosening and affecting rubbing processing of the leather strap; therefore, the friction sleeve can rub and process the leather strip.

The utility model discloses a leather water spraying machine which comprises a bottom groove, and a water spraying structure is installed on the bottom groove. The water spraying structure comprises a placing assembly and a plurality of spraying assemblies; the placing assembly comprises a concentric-square-shaped frame, a supporting column and a rotating column are installed on the two side wall faces of the concentric-square-shaped frame correspondingly, the supporting column is movably inserted into the inner side wall face of the bottom groove, the rotating column movably penetrates through the side wall face of the bottom groove, a motor is installed at one end of the rotating column, and a plurality of storage racks are installed on the upper wall face of the concentric-square-shaped frame at equal intervals. Two lead screw modules are symmetrically installed on the upper wall face of the concentric-square-shaped frame, and an n-shaped installation frame is installed at the movable ends of the two lead screw modules. The utility model relates to the technical field of leather processing, a plurality of leathers are placed on the placing component, the two sides of the placing component are alternately inclined through the operation of the motor, and then the plurality of leathers are simultaneously and comprehensively sprayed through the plurality of spraying components, so that the production efficiency of the leathers is improved, and the use is convenient.

The invention relates to the technical field of leather processing, and discloses a processing technology of cracked cow leather furniture leather, which comprises the following steps: carrying out roller coating of resin on leather subjected to roller coating pretreatment, and carrying out vibration softening, coating and ironing after roller coating to obtain a finished product of the cracked cow leather furniture leather, in the process of roller coating of the resin, roller coating is carried out by using a cracked resinous material; the cracking resinification material comprises cracking resin and water, and the mass ratio of the cracking resin to the water is 1: (1-1.5). The processing technology of the cracking kraft furniture leather is an environment-friendly processing technology, a chromium-free retanning system is adopted, the stability of the cracking effect is improved through the technology, and the cracking qualified rate of different leather blanks is increased to 90% or above through the cracking retanning material.

The utility model discloses a leather softening device for leather processing, which comprises a leather softening box, and a steam softening device, a degreasing agent spraying device and a leather flushing device are sequentially arranged in the leather softening box. A leather conveying device penetrating through the steam softening device, the degreasing agent spraying device and the leather flushing device is arranged outside the leather softening box; a water storage heating box is embedded in one end of the leather softening box shell, a degreasing agent mixing box is arranged at the top end of the water storage heating box, the water storage heating box is communicated with a steam softening device and a leather flushing device, and the degreasing agent mixing box is communicated with a degreasing agent spraying device; the leather softening device can effectively solve the problem that the leather softening device is not thorough in grease removal, so that softening is not uniform.

The utility model discloses a leather strip rubbing device for leather processing, which relates to the technical field of leather processing and comprises a support frame, a plurality of groups of rubbing components I are mounted at the upper end of the support frame, and a winding roller and a pay-off roller are rotationally mounted at two ends of the support frame respectively. The rubbing assemblies rub leather strips released by the pay-off roller, a bottom plate is arranged on the portion, close to one end of the pay-off roller, of the supporting frame, a pair of sliding grooves are formed in the bottom plate, second rubbing assemblies are slidably installed in the pair of sliding grooves, and two opposite fixing mechanisms are installed on the supporting frame. And the rubbing assembly II rubs the leather strip fixed between the two groups of fixing mechanisms. Through the cooperation of the pay-off roll, the friction roller and the take-up roll, leather strips are rubbed to different degrees through rotation of the friction roller and different surface textures, and reciprocating rubbing of the segmented leather strips can be achieved through the fixing mechanism and the second rubbing assembly, so that the rubbing requirements in various scenes are met.

The invention relates to a finishing process of sports shoe upper leather with a high wear-resistant function. The finishing process comprises the following steps of leather blank preparation, milling, net spreading, surface grinding, powder cleaning, base coating, first surface coating, second surface coating, top coating, lustring, milling, top coating and finished product obtaining. The compound resin system, the graphene oxide, the nano titanium dioxide and other wear-resistant components form a synergistic effect, a coating with a compact structure and excellent mechanical properties is constructed, external forces such as friction and scraping in daily wearing are effectively resisted, the wear-resistant frequency of instep leather is greatly increased, and the service life of sneakers is remarkably prolonged.

This utility model relates to the field of mechanical equipment safety protection technology, and discloses a stainless steel soft rotating drum protective structure, including a fence and four fixed boxes. Two of the fixed boxes are externally fixedly connected to the inner wall of the fence. Another fixed box is slidably connected to the outside of one of the fixed boxes. A mesh plate is fixedly connected to the outside of the two fixed boxes. A positioning box is fixedly connected to the inner wall of each fixed box. A semi-circular block is slidably connected to the inner wall of each positioning box. A toggle rod is fixedly connected to the outside of each semi-circular block. A reset assembly, including a rotating shaft, is fixedly connected to the outside of the toggle rod. In this utility model, the contact surfaces of the two semi-circular blocks are flush with each other, which allows the two fixed boxes to be moved away from each other by separating the positions of the two positioning boxes. This allows the mesh plate to be separated from the fence, thus enabling the mesh plate to be disassembled. The convenient disassembly of the protective mesh facilitates regular cleaning of accumulated dust.

The utility model is applicable to the technical field of leather processing, and provides a leather oscillating staking device which comprises a bottom plate, a staking plate and a staking plate, the L-shaped plate is fixedly mounted on the bottom plate; the shell is fixedly mounted on the L-shaped plate; the vertical plates are fixedly mounted on the bottom plate; the plurality of connecting plates are fixedly mounted on the inner wall of the L-shaped plate; the two conveying mechanisms are located at the top of the bottom plate and used for conveying leather; the adjusting mechanism is mounted on the L-shaped plate and used for adjusting the distance between the two conveying mechanisms; and the two oscillating mechanisms are respectively mounted on the plurality of vertical plates and the adjusting mechanism, and are used for oscillating and staking leather. The leather oscillation staking device provided by the scheme not only can perform oscillation staking in the leather processing process, but also is suitable for leather with different thicknesses, has a function of preheating the leather, and is relatively good in staking effect.

The utility model discloses softening equipment for leather processing, which relates to the technical field of leather softening and comprises a soaking box, a power mechanism is mounted on the outer side of the box wall at one end of the soaking box, the power mechanism comprises two meshed gears, a plurality of shifting rods are fixed on the outer side of one gear, an extrusion mechanism is mounted in the soaking box, and the extrusion mechanism is fixed on the outer side of the other gear. The squeezing mechanism comprises two squeezing rollers, fixing shafts are fixed to the centers of the two ends of each squeezing roller, one fixing shaft rotationally extends out of one box wall of the soaking box and is fixed to the center of the inner side of the gear, the other fixing shaft is rotationally installed on the other box wall of the soaking box, and a plurality of fixing structures are arranged on the two squeezing rollers. According to the leather softening device, the power mechanism is started to enable the two extrusion rollers in the extrusion mechanism to rotate relatively, so that two opposite leathers on the two extrusion rollers are contacted and extruded on one side and immersed in the softening liquid in the soaking box on the other side, and the leather softening efficiency is improved compared with an existing leather pedaling mode.

The flapping type treatment equipment comprises a base, the top end of the base is rotationally connected with a rotating platform used for placing the leather, and a flapping assembly is arranged at the position, located above the rotating platform, of the top end of the base; a driving mechanism is arranged in the base, and the driving mechanism is configured to simultaneously drive the rotating platform and the flapping assembly to reversely rotate around a common axis; the flapping assembly comprises a flapping block capable of vertically reciprocating, and the flapping block flaps and presses the leather on the rotating platform in the reverse rotating process. In conclusion, through one set of driving system, the leather is subjected to vertical flapping of the flapping assembly, horizontal rubbing generated by reverse rotation of the rotating platform and the flapping assembly and comprehensive covering brought by horizontal movement of the flapping block at the same time, the three kinds of movement synergistically act, and the leather softening efficiency and quality are remarkably improved; and the method has relatively high social use value and application prospect.

The utility model belongs to the technical field of leather processing, and particularly relates to a motorcycle cushion leather leveling and cutting device which comprises a processing table. A leveling assembly is mounted at the top of the processing table; a cutting assembly is mounted at the top of the processing table; the side wall of the leveling assembly is fixedly connected with an air pump; a connecting seat is arranged on the side wall of the leveling assembly; the top of the connecting seat is fixedly connected with a pair of supporting plates; the supporting plates are symmetrically arranged on the connecting seat; the top of the supporting plate is fixedly connected with a ventilation pipe. The output end of the air pump is fixedly connected with an air conveying pipe, by turning on a switch of the air pump, the air pump conveys air into the ventilation pipe through the air conveying pipe, the air entering the ventilation pipe finally sprays out to the surface of the leather through the spray head, and before the leather is leveled through the leveling assembly, dust and impurities on the surface of the leather are blown away. And dust and impurity residues on the surface of the leather are reduced, so that the flattening assembly can flatten the leather more stably, and the production quality of the leather is improved.

An improved staking machine (1) for softening and stretching a flexible sheet-like product having opposite faces, such as industrial leather and similar products, comprising at least one pair of flapping plates (6, 7) arranged opposite one another and configured for acting on the opposite faces of the sheet-like product, and an electric propulsion device (5) for conveying the product in a predetermined longitudinal direction (L), it comprises at least one upper elastic band (8) and at least one lower elastic band (9) arranged opposite each other. The elastic bands (8, 9) have endless extensions and are wound on at least a pair of upper end rollers (10, 11) and a pair of lower end rollers (12, 13), respectively. The propulsion device (5) comprises a first motor (14) and a second motor (15) coupled to the upper end rollers (10, 11) and the lower end rollers (12, 13), respectively, to enable the elastic belts (8, 9) to advance at the same propulsion speed (V1, V2) regardless of the condition that each single belt is elongated over time. And in the advancing process, the sheet-shaped product clamped in the middle is kept completely flat, stretched and free of wrinkles and unevenness.

The utility model relates to the technical field of staking machines, and discloses a staking machine template up-and-down reciprocating motion driving mechanism which comprises a machine body, a first sliding groove and a second sliding groove are formed in the inner wall of the machine body, and a first connecting hole and a second connecting hole are formed in the front face of the machine body. The driving module is arranged at the top of the machine body; the supporting seat is arranged at the top of the machine body; the upper template is arranged on one side of the supporting seat; the driving assembly is arranged in the machine body; and the reciprocating motion assembly is arranged in the machine body. The motor is started, the motor operates to drive the first rotating rod to rotate, the first rotating rod rotates to drive the first belt wheel to rotate, the first belt wheel rotates to drive the second belt wheel to rotate through a belt, the second belt wheel rotates to drive the second rotating rod to rotate, and the first rotating rod and the second rotating rod rotate to drive the first rotating disc and the second rotating disc to rotate. Therefore, the effect of driving the reciprocating motion assembly to operate is achieved.

An improved staking machine (1) for softening and stretching flexible laminar products, such as industrial leathers and the like which have opposite sides, the machine comprising at least one pair of beating plates (6, 7) facing each other and configured to act on the opposite faces of the laminar products, motorized advancement means (5) for conveying the products along a predetermined longitudinal direction (L) and comprising at least one upper elastic belt (8) and at least one lower elastic belt (9) facing each other. The elastic belts (8, 9) have an annular extension and they are wound respectively on at least one pair of upper end rollers (10, 11) and one pair of lower end rollers (12, 13). The advancement means (5) comprise a first (14) and a second electric motor (15) respectively coupled to an upper end roller (10, 11) and a lower end roller (12, 13), to allow said elastic belts (8, 9) to advance at the same advancement speed (v1, v2) regardless of the elongation of each individual belt over time and to keep the interposed laminar products perfectly flat, stretched and free from creases and unevenness during advancement thereof.