75results about "Leather softening" patented technology

The invention relates to the technical field of leather processing, in particular to a leather forming processing device for automotive trim. The device comprises a pretreatment device and a mold device, the rear side of the mold device is connected and provided with a trimming device, the front side of the mold device is connected and provided with a heating device, and the mold device is internally provided and connected with a cooling device. The pretreatment device is used for improving the quality and the processing efficiency of leather, improving the consistency of products and effectively shortening the production cycle, the mold device is used for forming the leather, ensuring the size accuracy and effectively improving the consistency of the products, and the heating device is used for softening the leather, facilitating subsequent processing, improving the process effect and effectively improving the quality of the products. The cooling device is used for rapidly cooling leather, stabilizing the size and effectively improving the product precision, the trimming device is used for finely adjusting the leather and improving the finished product quality, and the safety monitoring device is used for guaranteeing the safety of the machining process and effectively improving the operation safety.

The invention relates to a preparation method of leather with a multi-antibacterial type long-acting antibacterial function. The preparation method comprises the following steps of wet blue leather pretreatment, antibacterial retanning, filling dyeing, fat liquoring, antibacterial treatment, drying finishing and antibacterial coating. Wherein the antibacterial retanning adopts eucalyptus oil / dialdehyde cyclodextrin as an aldehyde retanning agent for aldehyde retanning; in the antibacterial treatment, eucalyptus oil and beta-cyclodextrin are used as antibacterial agents to carry out antibacterial occurrence treatment, the eucalyptus oil and the beta-cyclodextrin take essential oil extracted from natural herbaceous plant eucalyptus leaves as clathrate compounds, the beta-cyclodextrin is used as a main body, and a modified antibacterial agent beta-cyclodextrin and eucalyptus oil clathrate compound is prepared through a molecular clathration technology. As an antibacterial agent, an occurrence process is designed for antibacterial treatment; the antibacterial coating adopts a coating containing silver ions to be applied to a leather coating process; through triple antibiosis, the leather is more durable in antibiosis performance and more efficient.

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 invention provides a softening method and equipment for animal leather processing, and relates to the technical field of leather softening, the equipment comprises a box body, a power assembly, a material pushing mechanism and a rolling and stretching assembly; a feeding plate is arranged at the top of the box body, a platform is integrally formed at the top end of the feeding plate, an air pump is installed on the surface of the platform, one end of the air pump is connected with external high-temperature and high-pressure steam generation equipment through a pipeline, a feeding channel is formed in the bottom of the feeding plate, and an air inlet bin is integrally formed in the bottom of the feeding channel; the rolling and stretching assembly is driven by the power assembly at the bottom to rotate, the rolling and stretching effects can be provided at the same time, the common treatment process of multiple machines is achieved, the softening efficiency and uniformity are improved, the pushing force for pushing the leather towards the bottom is periodically applied to the leather conveyed in the feeding channel in cooperation with the pushing mechanism, and the leather softening efficiency is improved. And the probability that the leather raw materials are clamped at the position of the feeding channel in the process of being conveyed into the box body is reduced.

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 invention relates to the technical field of oscillation staking machines, and discloses an oscillation staking machine capable of preventing leather from being folded, which comprises a base, a connecting bracket is fixedly connected to the upper surface of the base, an oscillation staking mechanism is mounted on the upper surface of the connecting bracket, and driving mechanisms are symmetrically mounted on two side surfaces of the connecting bracket; a first transmission auxiliary mechanism and a second transmission auxiliary mechanism are symmetrically installed on the two side faces of the oscillation staking mechanism. The driving mechanism comprises two opposite side plates, the side plates are fixedly connected to the outer surfaces of the two ends of the same side of the connecting support, a first rotating rod and a second rotating rod are rotationally connected between the side faces, close to each other, of the two side plates through bearings, a material guiding roller is fixedly connected to the outer surface of the first rotating rod, and a driving roller is fixedly connected to the outer surface of the second rotating rod; through cooperation of the structures, leather folding caused by power loss in the transmission process is avoided as much as possible, and the processing efficiency during leather staking is improved.

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 discloses a leather oscillation staking machine which comprises a base, two supporting plates are connected to the upper surface of the base, a fixing plate is connected to the front face of one supporting plate, a hot air box is connected to the upper surface of the fixing plate, a fan is connected to the right side face of the hot air box, a motor is installed on the right side face of the fan, and a heater is installed on the inner wall of the hot air box. A first air outlet pipe is connected to the upper surface of the hot air box, a second air outlet pipe is connected to the front face of the hot air box, air outlets are connected to the ends, away from the hot air box, of the first air outlet pipe and the second air outlet pipe, a water tank is arranged on the upper surface of the fixing plate, a water pump is installed on the upper surface of the water tank, and a sprinkling pipe is connected to the left side face of the water tank. Water in the water tank is driven by the water pump to be sprinkled through the sprinkling pipe, leather softening is facilitated, the motor is started to drive the fan to convey wind power into the hot air box, the softening process of the leather can be accelerated through hot air, and the leather can reach ideal flexibility within a shorter time.

The present invention belongs to the technical field of leather softening processing, and specifically is an environmentally friendly leather softening processing system, comprising a groove, which is annularly opened on both sides of a conveyor belt; a pressing and disengaging unit, which is arranged on both sides of the conveyor belt, and is used to ensure that the leather is in a straight state during the softening process of the leather passing through a rolling roller, and a pressing part in the pressing and disengaging unit is arranged in the groove; the rolling roller comprises a front rolling roller and a rear rolling roller; the front rolling roller is located close to one end of the conveyor belt, and the length of the front rolling roller is less than the distance between the pressing and disengaging units on both sides of the conveyor belt; the length of the rear rolling roller is not less than the distance between the grooves on both sides of the conveyor belt; the present invention solves the problem that in the process of softening by rolling, if the leather is not placed flat enough, it is easy to cause uneven rolling softening, creases on the leather surface after softening, and poor softening effect of the folded part.

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 invention relates to a preparation method of long-acting antibacterial leather with wormwood active ingredients. The preparation method comprises the following steps: softening bare leather, carrying out antibacterial pre-tanning, tanning, carrying out antibacterial retanning, filling and dyeing, fatliquoring, carrying out antibacterial treatment, drying and finishing, and carrying out antibacterial coating. Modified cyclodextrin is added in the antibacterial pretanning step, and 1.0-2.0% of modified cyclodextrin (MO / MCD) is added in the antibacterial retanning step, and rotation is conducted for 20 min; antibacterial treatment: adding 2.0 to 3.0 percent of modified cyclodextrin (MO / MCD) clathrate compound into a rotary drum, and rotating for 60 to 120 minutes. The leather antibacterial material is treated by adopting a cyclodextrin inclusion technology, cyclodextrin has a unique cavity structure and can include various antibacterial components, so that the stability and the long-acting antibacterial performance of the leather antibacterial material are improved, modified cyclodextrin with a tanning effect is selected and can react with leather collagen fibers, and the leather antibacterial material is prepared. And the purpose of multiple functions of the tanning agent and the antibacterial agent can be achieved.

The invention provides an environment-friendly odorless cow leather treatment process, which belongs to the technical field of cow leather processing, and comprises the following steps: S1, softening cow leather by vibration, patching, buffing the leather, trimming the buffed cow leather, removing parts which cannot be used, and ironing the trimmed cow leather; s2, the ironed cow leather is coated with the coating A in a roller coating mode, and a coating A is obtained; nitrocotton paint is used on the coating A to increase the water resistance, then embossing, milling and toggling are sequentially carried out, and paint B is used for inner sealing operation; the coating A comprises the following components: water, wax, resin, pigment paste and a hand feeling agent; the coating B comprises the following components: water, resin and nonionic oil; s3, the surface of the cowhide finally obtained in the step S2 is sequentially coated with a batter adhesion agent, batter and gloss oil, then the cowhide is subjected to standing and drying, finally, ironing is conducted, and the finished cowhide is obtained. According to the environment-friendly odorless cow leather treatment process, heavy metal wastewater is not generated, and odorless leather is obtained.

An industrial plant (1) for milling tannery leathers comprising a milling drum (2) comprising a hollow body (3), suitable to be rotated around an axis of symmetry (X) through motorization means and inside which the leathers to be treated are received, a closed recirculation circuit (4), operatively connected to the hollow body (3) of the milling drum (2) for the introduction into, and exit from, the hollow body (3) of air (A) for the treatment of the leathers, a dust collector (5) for cleaning the air (A), arranged outside the hollow body (3) of the milling drum (2) and downstream the hollow body (3) following the path of the air (A) in the closed recirculation circuit (4), as a reference direction, forced ventilation means (6), for example, arranged downstream the dust collector (5) following the path of the air (A) inside the closed circuit (4), as a reference direction. In particular, the industrial plant (1) comprises at least one low energy consumption heating element (8), suitable to produce heat which intercepts the air (A) to heat it, and arranged in the closed recirculation circuit (4) outside the hollow body (3).

The invention discloses an ecological plant tanning material-zeolite tanning agent combined chrome-free tanning production process. The tanning technology sequentially comprises the following working procedures of raw material leather grouping, pre-soaking, fleshing, main soaking, liming, leather splitting, deliming, softening, pH and bare leather adjusting, Tara tanning, zeolite tanning, standing, water squeezing, shaving, water washing, neutralizing, filling and retanning, filling, dyeing, fat liquoring, fixing, drying and after-finishing.

An adaptive staking machine (1) for softening and stretching flexible laminar products, such as leather and hides, which comprises a base (2) defining a longitudinal axis (L) and having an inlet area (3) for the products to be treated and an outlet area (4) for the treated products, on the base there are mounted at least one pair of beating plates (6, 7) which are mutually facing and configured to act on the opposite faces of the products to be treated, at least one of said plates (6) being fixed and the other (7) movable and associated with drive means, advancement means (5) for the advancement of the products comprising at least one upper elastic belt (8) and at least one lower elastic belt (9), arranged mutually facing and interposed between the pair of beating plates (6, 7), each of said elastic belts (8, 9) having an annular development and being wound on at least one pair of upper end rollers (10, 11) and one pair of lower end rollers (12, 13) with axes perpendicular to the longitudinal direction. The machine comprises an automatic adaptive adjustment system (16, 17) for adjusting the tension (T) of each of the elastic belts (8, 9) and configured to recover the elongation of each individual belt over time and maintain the interposed laminar products perfectly flat, stretched and free from creases and unevenness during advancement and treatment thereof.

The invention discloses leather softening and soaking equipment for leather flexible treatment, and relates to the technical field of leather production, the leather softening and soaking equipment comprises a shell and a supporting frame fixedly mounted on the outer surface of the shell, a feeding part and a liquid inlet pipe are mounted at the two ends of the shell correspondingly, and a sealing cover is detachably mounted at the top of the liquid inlet pipe; a frame plate is fixedly installed at the end, close to the liquid inlet pipe, of the shell, a liquid storage groove is formed in the inner wall of the shell, and a rotating mechanism is installed in the middle of the shell. According to the leather softening and soaking equipment for leather flexibility treatment, a softening agent makes rapid contact with leather through the rotating mechanism, the soaking efficiency is improved, the soaking uniformity of the leather and the softening agent is improved, insufficient local soaking or excessive soaking of the leather is avoided, then through transmission cooperation of a stirring piece and a fixed gear, the leather and the softening agent are mixed more sufficiently, and the leather softening effect is improved. Meanwhile, multiple pieces of leather are separated, stacking and winding of the leather are avoided, and the leather softening efficiency is greatly improved.

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 discloses softening and flattening equipment for leather production and processing, and relates to the technical field of leather production and processing, the softening and flattening equipment comprises a frame body and a shell fixedly mounted at the top of the frame body, a conveying mechanism is mounted at the top of the frame body, the conveying mechanism is arranged under the shell, a material soaking mechanism is mounted at the feeding end of the frame body, and a material conveying mechanism is mounted at the feeding end of the frame body. A flattening motor is fixedly installed on the side face of the shell through a support, a hot pressing roller is rotatably installed on the inner wall of the shell, and a softening mechanism is installed in the shell. According to the softening and flattening equipment for leather production and processing, soaking is conducted through a softening agent in the material soaking mechanism, the internal fiber structure of leather is effectively changed, the leather is preliminarily softened, then the leather is subjected to loose softening treatment through the softening mechanism, and finally the leather is flattened through hot pressing treatment of the hot pressing roller; the softening and flattening integrated design of the equipment greatly improves the leather production efficiency.

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 invention relates to the technical field of leather processing, and in particular to a leather softening processing method, comprising: obtaining bare hides after dehairing and degreasing raw hides; determining whether processing of the bare hides meets preset standards according to a bare hide quality evaluation value; stirring and rotating the bare hides that meet the preset standards in a rotary drum to obtain macerated leather; increasing the softener content in the rotary drum when determining that processing of the macerated leathers does not meet the preset standards according to a penetration uniformity characteristic value, or determining whether processing of the macerated leathers meets the preset standards for the second time according to a softness characteristic value; placing the macerated leathers that meet the preset standards in an oscillating stretching machine for oscillation stretching to obtain leather; determining whether processing of the leathers meets the preset standards according to a bending rebound characteristic value; grinding and drying the leathers that meet the preset standards to obtain softened leather, thereby improving leather softening processing efficiency.

The utility model relates to the technical field of milling drums, and discloses a leather milling drum which comprises an outer protection frame, a second motor is installed on the outer wall of the outer protection frame, a box body is installed in the outer protection frame, a cooling mechanism is arranged in the box body, a water tank is fixedly installed on one side of the outer wall of the outer protection frame, and the cooling mechanism is arranged in the water tank. A connecting pipe is fixedly connected to the top of the water tank, a spraying opening is fixedly formed in the top of the box body, a backflow pipe is fixedly connected to one side of the outer wall of the box body, the extending end of the backflow pipe is fixedly connected to the water tank, a first motor is installed on a first support, and the first motor drives a lead screw at the output end to rotate. And the other end of the protective net slides on the limiting rod, so that the stable effect of the whole structure is guaranteed, manual adjustment is avoided, and the safety is improved.

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 invention relates to the technical field of leather processing, and discloses a preparation method and application of leather with an oil-wax double-color effect, and the preparation method comprises the following steps: sequentially carrying out first spraying, first ironing, second spraying, standing, polishing, milling, dedusting, second ironing, color separation, third spraying and third ironing on the leather to obtain a finished product of the leather with the oil-wax double-color effect; coloring paste is used in the first guniting process, and oil wax layer paste is used in the second guniting process; the coloring paste and the oil wax layer paste both contain water-based wax. The method disclosed by the invention is high in efficiency and short in processing period, and the prepared oil-wax double-color-effect leather is high in rubbing color fastness and scratch-resistant; in the coloring process, water-based wax is used for replacing a penetrating agent, so that the coating is fast in coloring and more environment-friendly.

The invention relates to the technical field of oscillation staking machines, and discloses a six-row oscillation staking machine with high leather yield, which comprises a base, a connecting frame fixedly connected to the upper surface of the base, side plates fixedly connected to the two side surfaces of the connecting frame, auxiliary roller groups mounted on the outer surfaces of the side plates, and a lower oscillation staking mechanism mounted on the upper surface of the connecting frame, an upper oscillation staking mechanism is mounted between the close side surfaces of the side plates at the two ends; the upper oscillating staking mechanism comprises an upper vibrating plate, an electric cylinder is mounted on the upper surface of the upper vibrating plate, a reinforced nylon toothed plate is mounted on the lower surface of the upper vibrating plate, and a piston rod on the lower surface of the electric cylinder penetrates through the upper vibrating plate and the reinforced nylon toothed plate and then is connected with a toothed nail; through cooperation of the structures, when leather is softened, the effective leather area can be utilized to the maximum extent, and the leather yield during leather softening is increased.

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 invention relates to the technical field of leather processing, in particular to a leather softening processing method which comprises the following steps: unhairing and degreasing raw leather to obtain bare leather; judging whether the processing of the bare skin meets a preset standard or not according to the bare skin quality evaluation value; stirring and rotating the bare leather meeting the preset standard in a rotary drum to obtain soaked soft leather; when it is judged that the processing of the soaked soft leather does not meet the preset standard according to the permeation uniformity characteristic value, the content of a softening agent in the rotary drum is increased, or whether the processing of the soaked soft leather meets the preset standard or not is judged secondarily according to the soft characteristic value; the soaked soft leather meeting the preset standard is put into an oscillating staking machine to be oscillated and stretched, and leather is obtained; judging whether the processing of the leather meets a preset standard or not according to the bending springback characteristic value; leather meeting the preset standard is polished and dried, softened leather is obtained, and the leather softening processing efficiency is improved.