CN113061667B

CN113061667B - Pretreatment device for cow leather making system

Info

Publication number: CN113061667B
Application number: CN202110337317.4A
Authority: CN
Inventors: 陈秋林
Original assignee: Nanjing Xuanshi Qiyuan Software Technology Co Ltd
Current assignee: Nanjing Xuanshi Qiyuan Software Technology Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-30
Publication date: 2022-08-30
Anticipated expiration: 2041-03-30
Also published as: CN113061667A; JP2022146677A

Abstract

The invention discloses a pretreatment device for a cowhide leather making system, which comprises a machine body, wherein a driving space is arranged in the machine body, a driving mechanism for the driving device to move is arranged in the driving space, a working space is arranged on the right side of the driving space, the left side wall of the working space is connected with a scraping box body in a sliding way, a scraping mechanism for removing hair on the surface of cowhide is arranged in the scraping box body, the left side wall of the working space is connected with a meat cutting box body in a sliding way, a meat cutting mechanism for removing meat sundries on the meat-pasted surface of the cowhide is arranged in the meat cutting box body, a reflux mechanism for flushing the scraped hair water flow is arranged on the lower side wall of the working space, the hair on the cowhide can be effectively removed through the design of the scraping mechanism, meanwhile, hot water can be used for flushing the cowhide after hair, and further the occurrence of flaws in the later-stage manufacturing process can be prevented, thereby greatly affecting the quality of the leather.

Description

Pretreatment device for cow leather-making system

Technical Field

The invention belongs to the field of leather correlation, and particularly relates to a pretreatment device for a cowhide leather making system.

Background

The leather is animal skin which is obtained by physical and chemical processing such as unhairing, tanning and the like and is denatured and non-perishable. The leather is formed by tightly weaving natural protein fibers in a three-dimensional space, and the surface of the leather is provided with a special grain layer which has natural grains and luster and comfortable hand feeling;

the hair on the cowhide is difficult to remove thoroughly in traditional cowhide treatment so that the quality of the leather is seriously influenced in subsequent processing, meanwhile, the depilatory is also harmful to people, and meanwhile, more grease on the residual meat on the meat sticking surface of the cowhide has great influence on the subsequent processing of the cowhide.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a pretreatment device for a cowhide leather making system.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a preprocessing device for cow hide leather-making system, includes the organism, be provided with drive space in the organism, be provided with the actuating mechanism who is used for the actuating device motion in the drive space, the drive space right side is provided with workspace, workspace left side wall sliding connection has strikes off the box, strike off and be provided with the mechanism of striking off that is used for cow hide surperficial hair to get rid of in the box, workspace left side wall sliding connection has cuts the meat box, it cuts the meat mechanism to be provided with the meat of cutting that is used for cow hide meat face meat to get rid of in the meat box, the lateral wall is provided with the backward flow mechanism that is used for washing the hair rivers that strike off under the workspace.

Preferably, actuating mechanism includes fixed mounting and is in the driving motor of lateral wall behind the drive space, the driving motor output has set firmly the drive lead screw, threaded connection has the power slide on the drive lead screw, power slide right-hand member face has set firmly motor power, motor power output has set firmly motor power, strike off the box and extend to run through the entering left the drive space, strike off the box with power slide sliding connection, cut the meat box and extend to run through the entering left the drive space, cut the meat box with power slide sliding connection, motor power lead screw with cut meat box threaded connection, motor power lead screw with strike off box threaded connection, motor lead screw upper segment part is opposite with hypomere part screw thread direction.

Preferably, the scraping mechanism comprises a stirring space arranged in the scraping box body, a stirring motor is fixedly arranged on the side wall of the stirring space, a stirring rotating shaft is fixedly arranged at the output end of the stirring motor, a rotating shaft space is arranged in the stirring rotating shaft, a stirring rod is fixedly sleeved on the stirring rotating shaft, the stirring space is communicated with the rotating shaft space, second runners are respectively arranged on the left side and the right side of the rotating shaft space, a water storage space is arranged on the left side of the stirring space, a first runner is communicated with the right side wall of the water storage space, a water pump is fixedly arranged in the first runner, the right side of the first runner is communicated with the second runner, an air blowing space is arranged on the right side of the stirring space, an air blower is fixedly arranged on the lower side wall of the air blowing space, an air outlet is communicated with the second runner, and a first box body is fixedly arranged on the lower end face of the stirring rotating shaft, the first box body is internally provided with a first space which is communicated with the rotating shaft space, the upper side of the first space is provided with two third flow channels, each third flow channel is respectively communicated with the corresponding second flow channel, the lower side wall of the first space is connected with five smearing cylinders in a sliding way, each smearing cylinder is internally provided with a smearing cavity, the upper end surface of each third flow channel is connected with a smearing spring between the upper side wall of the first space, the lower end surface of the first box body is fixedly provided with two connecting cylinders which are respectively provided with a connecting cavity, the upper side of each connecting cavity is respectively communicated with a connecting space, each connecting space is respectively communicated with the corresponding third flow channel, the lower end surfaces of the two connecting cylinders are fixedly provided with a uniform scraping plate, and each smearing cylinder is respectively connected with the uniform scraping plate in a sliding way, every the connection chamber communicates respectively has the induction space, every the inductor has set firmly respectively in the induction space, every induction motor has set firmly respectively in the induction space, every the induction motor output has set firmly the cutter pivot respectively, two the cutter pivot is respectively to keeping away from scrape even board central line direction and extend and run through scrape the terminal surface that even board corresponds, two fixed cover is equipped with in the cutter pivot and scrapes the hair board, lateral wall has set firmly the working plate behind the working space.

Preferably, the meat cutting mechanism comprises a third space arranged in the meat cutting box body, a meat cutting motor is fixedly arranged on the lower side wall of the third space, a meat cutting rotating shaft is fixedly arranged at the output end of the meat cutting motor, the meat cutting rotating shaft extends upwards to penetrate through the upper end surface of the meat cutting box body, a second box body is fixedly sleeved on the meat cutting rotating shaft, a second space is arranged in the second box body, the meat cutting rotating shaft penetrates into the second space, a centrifugal sleeve block is fixedly sleeved on the meat cutting rotating shaft, two connecting hinged arms are hinged on the centrifugal sleeve block, the two connecting hinged arms are symmetrically distributed left and right about the central line of the centrifugal sleeve block, each connecting hinged arm is hinged with a centrifugal ball, a hinged connecting rod is hinged on each centrifugal ball, and each hinged connecting rod extends upwards to penetrate into a corresponding rack space, each rack space rear side wall is respectively provided with a meat cutting sliding groove with a forward opening, each meat cutting sliding groove is respectively connected with a meat cutting rack in a sliding manner, each hinged connecting rod is respectively hinged with the corresponding meat cutting rack, each meat cutting rack is close to the end face of the centrifugal sleeve block direction and is respectively close to the side wall of the centrifugal sleeve block direction with the corresponding meat cutting sliding groove, a rack spring is connected between the side walls, the upper side wall of each rack space is respectively connected with a meat cutting sliding column in a sliding manner, each meat cutting sliding column respectively extends upwards to penetrate through the second box body, the upper end face of each meat cutting sliding column is respectively and fixedly provided with a meat cutting tool, the lower end face of each meat cutting tool is respectively connected with a meat cutting spring between the upper end face of the second box body, each meat cutting sliding column is respectively connected with a meat cutting rack in a spline manner, and the upper end face of each meat cutting rack is respectively and fixedly provided with two fixing rods, and the two fixing rods are respectively in sliding connection with the side wall on the corresponding rack space.

Preferably, under the initial condition, the backward flow mechanism is in including the intercommunication the backward flow space of lateral wall under the working space, the lateral wall has set firmly the filter screen on the backward flow space, backward flow space left side wall intercommunication has the backward flow way, be equipped with the return water pump in the backward flow way, the backward flow way with be connected with flexible elasticity pipe between the water space.

The working principle of the pretreatment device for the cowhide leather making system provided by the embodiment of the invention is as follows; when the cowhide is required to be treated, the cowhide is unfolded and paved on the upper end surface of the working plate and four corners of the working plate are fixed, strong sodium sulfate and soda lime are put into the stirring space, the stirring motor is started at the moment so as to drive the stirring rotating shaft to rotate, so that the stirring rod is driven to stir and mix the strong sodium sulfate, the water and the soda lime, a dehairing mixture enters the first space, the meat cutting motor is started simultaneously so as to drive the meat cutting rotating shaft to rotate, so as to drive the second box body to rotate, so as to drive the centrifugal ball to rotate, the centrifugal ball moves upwards due to the left and right centrifugation, so as to drive the corresponding hinged connecting rod to move in the direction away from the centrifugal sleeve block, so as to drive the corresponding meat cutting rack to move in the direction away from the centrifugal sleeve block, so as to drive the corresponding meat cutting gear to rotate, thereby driving the corresponding meat-cutting sliding columns to rotate, enabling the corresponding meat-cutting cutters to rotate to a horizontal state from an individual, enabling the two meat-cutting cutters to abut against each other, starting the power motor at the moment, thereby driving the scraping box to move downwards, enabling the meat-cutting box to move upwards, enabling the scraping box to move downwards when the scraping box moves downwards until the smearing cylinder abuts against the surface of the cowhide, thereby enabling the smearing cylinder to slide into the first space, thereby enabling the mixture which is unhaired in the first space to enter the smearing cavity, enabling the air blower to start at the moment, thereby enabling the generated hot air to enter the connecting space, spraying out through the connecting cavity, enabling the unhairing mixture to be smeared on the cowhide at the moment, uniformly spreading the unhairing mixture on the cowhide through the scraping plate at the moment, and partially air-drying the mixture through the hot air in the connecting cavity at the same time, the second box body moves upwards at the same time, so that the meat cutting tool which is turned to be horizontal abuts against the lower surface of the cowhide, the second box body rotates at the same time, the meat cutting tool is driven to rotate, residual meat on the lower surface of the cowhide is cut off, the driving screw rod is driven at the moment, the power sliding plate is driven to move backwards, so that the cowhide is completely cut and unhaired, when the power sliding plate moves to the rear end, the driving motor is driven to rotate reversely, the power sliding plate moves forwards, the meat cutting motor is turned off, the dead meat cutting tool is reset, the air blowing space is turned off, the water pump is turned on, hot water enters the second flow channel and enters the connecting cavity, the inductor senses the meat, the induction motor is driven to be started, and the tool rotating shaft rotates, thereby drive scrape the hair board and down rotate, thereby make scrape the hair board butt to the cow hide on, this moment the power slide moves forward, makes scrape the hair board and strike off the cow hide that the adhesion has unhairing mixture hair, strikes off unhairing mixture and hair together, strikes off cow hide hair root simultaneously together, meanwhile the spun hot water can be timely in the connection chamber washes the cow hide of scraping the hair, can prevent that the cow hide from appearing the flaw in the later stage preparation process, and the meat cutting box moves forward, makes the meat cutting utensil cuts the cow hide leftover bits and cuts off the cow hide, and the water that washes enters into carry out the backward flow in the backward flow space and flow through starting the backward flow water pump is with water absorption to deposit water space and use again.

In conclusion, the invention has the beneficial effects that:

1. can effectually get rid of the hair on the cow hide through the design of striking off the mechanism, can in time use hot water to wash the cow hide of having scraped hair simultaneously, and then prevented to prevent that the cow hide from appearing the flaw in later stage manufacture process to influence the quality of leather greatly.

The design of the meat cutting mechanism can effectively cut redundant grease meat on the cowhide, thereby avoiding the influence of too much grease on the cowhide in the leather production and further improving the quality of the leather.

Drawings

Fig. 1 is a sectional view showing the overall construction of a pretreatment device for a kraft system.

Fig. 2 is a partially enlarged schematic view of the invention at a in fig. 1.

Fig. 3 is a partially enlarged schematic view of the invention at B in fig. 1.

Fig. 4 is an enlarged partial schematic view of the invention at C in fig. 1.

Fig. 5 is an enlarged partial schematic view of the invention at D in fig. 1.

Fig. 6 is a cross-sectional view at E-E of fig. 2 of the present invention.

In the figure, a machine body 10; a power slide 11; a drive space 12; a power screw 13; 14; a drive screw 15; a drive motor 16; a meat cutting box 17; a power motor 18; a return duct 19; a flexible elastic tube 20; a workspace 21; a scraping box 22; a water storage space 23; a first flow passage 24; a water pump 25; a stirring space 26; a stirring motor 27; a stirring rotation shaft 28; a stirring rod 29; a spindle space 30; the air blowing space 31; a blower 32; a first case 33; the first space 34; a working plate 35; a second casing 36; the second space 37; a centrifugal ball 38; the third space 39; a meat mincing shaft 40; a meat cutting motor 41; a filter screen 42; the return space 43; a reflux water pump 44; a painting spring 45; an application chamber 46; the connecting space 47; a painting cylinder 48; a connecting cylinder 49; a connecting chamber 50; a shaving plate 51; a leveling plate 52; the inductor 53; a sensing space 54; an induction motor 55; a cutter shaft 56; the second flow path 57; a third flow passage 58; a cut meat chute 59; a meat cutting rack 60; a meat cutting gear 61; a fixing rod 62; a fleshing smooth column 63; a meat cutting tool 64; a meat cutting spring 65; a rack spring 66; a hinge link 67; connecting the hinge arms 68; a centrifugal nest block 69; rack space 70.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, a preprocessing device for a cowhide tanning system, includes a machine body 10, be provided with drive space 12 in the machine body 10, be provided with the actuating mechanism who is used for the actuating device motion in the drive space 12, drive space 12 right side is provided with workspace 21, workspace 21 left side wall sliding connection has scraping box 22, be provided with the scraping mechanism that is used for the surperficial hair of cowhide to get rid of in scraping box 22, workspace 21 left side wall sliding connection has meat chopping box 17, be provided with the meat chopping mechanism that is used for the cowhide to paste meat face meat miscellaneous meat and get rid of in the meat chopping box 17, workspace 21 downside wall is provided with the backward flow mechanism that is used for washing the hair rivers of scraping.

As shown in fig. 1, the driving mechanism includes a driving motor 16 fixedly installed at a rear side wall of the driving space 12, the output end of the driving motor 16 is fixedly provided with a driving screw rod 15, the driving screw rod 15 is connected with a power slide plate 11 in a threaded manner, a power motor 18 is fixedly arranged on the right end face of the power sliding plate 11, a power screw 13 is fixedly arranged at the output end of the power motor 18, the scraper box 22 extends through the drive space 12 to the left, the scraper box 22 is slidably connected to the power slide 11, the meat cutting box body 17 extends leftwards and penetrates into the driving space 12, the meat cutting box body 17 is connected with the power slide plate 11 in a sliding way, the power screw 13 is in threaded connection with the meat cutting box body 17, the power screw 13 is in threaded connection with the scraping box body 22, and the upper section and the lower section of the power screw 13 are opposite in thread direction.

Referring to fig. 1, 2 and 3, the scraping mechanism includes a stirring space 26 disposed in the scraping box 22, a stirring motor 27 is fixedly disposed on an upper side wall of the stirring space 26, a stirring rotating shaft 28 is fixedly disposed at an output end of the stirring motor 27, a rotating shaft space 30 is disposed in the stirring rotating shaft 28, a stirring rod 29 is fixedly disposed on the stirring rotating shaft 28, the stirring space 26 is communicated with the rotating shaft space 30, second flow channels 57 are respectively disposed on left and right sides of the rotating shaft space 30, a water storage space 23 is disposed on a left side of the stirring space 26, a first flow channel 24 is communicated with a right side wall of the water storage space 23, a water pump 25 is fixedly disposed in the first flow channel 24, a right side of the first flow channel 24 is communicated with the second flow channels 57, an air blowing space 31 is disposed on a right side of the stirring space 26, and an air blower 32 is fixedly disposed on a lower side wall of the air blowing space 31, the air outlet of the blower 32 is communicated with the second flow passage 57, the lower end face of the stirring rotating shaft 28 is fixedly provided with a first box body 33, a first space 34 is arranged in the first box body 33, the first space 34 is communicated with the rotating shaft space 30, two third flow passages 58 are arranged on the upper side of the first space 34, each third flow passage 58 is respectively communicated with the corresponding second flow passage 57, the lower side wall of the first space 34 is connected with five smearing cylinders 48 in a sliding manner, each smearing cylinder 48 is respectively provided with a smearing cavity 46, a smearing spring 45 is connected between the upper end face of each third flow passage 58 and the upper side wall of the first space 34, the lower end face of the first box body 33 is fixedly provided with two connecting cylinders 49, the two connecting cylinders 49 are respectively provided with a connecting cavity 50, the upper side of each connecting cavity 50 is respectively communicated with a connecting space 47, every the connection space 47 respectively with correspond the third runner 58 is linked together, two the fixed uniform scraper 52 that is equipped with of bottom surface under the connection cylinder 49, every paint cylinder 48 respectively with uniform scraper 52 sliding connection, every the connection chamber 50 communicates respectively has induction space 54, every inductor 53 has set firmly respectively in the induction space 54, every induction space 54 has set firmly induction motor 55 respectively, every the induction motor 55 output has set firmly cutter pivot 56 respectively, two cutter pivot 56 is respectively to keeping away from uniform scraper 52 central line direction extends and runs through the terminal surface that uniform scraper 52 corresponds, two fixed cover is equipped with the burr 51 in the cutter pivot 56, the lateral wall has set firmly the working plate 35 behind the working space 21.

Referring to fig. 1, 4 and 5, the meat cutting mechanism includes a third space 39 disposed in the meat cutting box 17, a meat cutting motor 41 is fixedly disposed on a lower sidewall of the third space 39, an output end of the meat cutting motor 41 is fixedly disposed with a meat cutting shaft 40, the meat cutting shaft 40 extends upward to penetrate through an upper end surface of the meat cutting box 17, a second box 36 is fixedly disposed on the meat cutting shaft 40, a second space 37 is disposed in the second box 36, the meat cutting shaft 40 penetrates into the second space 37, a centrifugal sleeve block 69 is fixedly disposed on the meat cutting shaft 40, two connecting hinge arms 68 are hinged to the centrifugal sleeve block 69, the two connecting hinge arms 68 are symmetrically disposed about a center line of the centrifugal sleeve block 69, each connecting hinge arm 68 is hinged to a centrifugal ball 38, each centrifugal ball 38 is hinged to a hinge connecting rod 67, each hinge connecting rod 67 extends upwards to penetrate into a corresponding rack space 70, the rear side wall of each rack space 70 is provided with a meat cutting sliding groove 59 with a forward opening, a meat cutting rack 60 is connected in each meat cutting sliding groove 59 in a sliding manner, each hinge connecting rod 67 is hinged with the corresponding meat cutting rack 60, the end surface of each meat cutting rack 60 close to the centrifugal sleeve block 69 in the direction is connected with a rack spring 66 between the corresponding meat cutting sliding groove 59 close to the centrifugal sleeve block 69 in the direction, the upper side wall of each rack space 70 is connected with a meat cutting sliding column 63 in a sliding manner, each meat cutting sliding column 63 extends upwards to penetrate through the second box 36, the upper end surface of each meat cutting sliding column 63 is fixedly provided with a meat cutting tool 64, and the lower end surface of each meat cutting tool 64 is connected with a meat cutting spring 65 between the upper end surface of the second box 36, each meat cutting slide column 63 is respectively connected with a meat cutting rack 60 through a spline, two fixing rods 62 are respectively fixedly arranged on the upper end face of each meat cutting rack 60, and the two fixing rods 62 are respectively connected with the upper side wall of the corresponding rack space 70 in a sliding mode.

As shown in fig. 1, the backflow mechanism includes a backflow space 43 communicated with the lower side wall of the working space 21, a filter screen 42 is fixedly arranged on the upper side wall of the backflow space 43, a backflow passage 19 is communicated with the left side wall of the backflow space 43, a backflow water pump 44 is arranged in the backflow passage 19, and a flexible elastic pipe 20 is connected between the backflow passage 19 and the water storage space 23.

The working principle of the pretreatment device for the cowhide leather making system provided by the embodiment of the invention is as follows; when the cowhide needs to be treated, the cowhide is unfolded and spread on the upper end surface of the working plate 35 and four corners are fixed, at this time, strong sodium sulfate and soda lime are put into the stirring space 26, at this time, the stirring motor 27 is turned on, so that the stirring rotating shaft 28 is driven to rotate, so that the stirring rod 29 is driven to stir and mix the strong sodium sulfate, the water and the soda lime, so that a dehairing mixture enters the first space 34, and at the same time, the meat cutting motor 41 is started to drive the meat cutting rotating shaft 40 to rotate, so that the second box 36 is driven to rotate, so that the centrifugal balls 38 are driven to rotate, and the centrifugal balls 38 move upwards left and right due to centrifugation, so that the corresponding hinge connecting rods 67 are driven to move in the direction away from the centrifugal sleeve block 69, so that the corresponding meat cutting racks 60 are driven to move in the direction away from the centrifugal sleeve block 69, thereby driving the corresponding meat cutting gear 61 to rotate, thereby driving the corresponding meat cutting slide column 63 to rotate, thereby enabling the corresponding meat cutting knife 64 to rotate to a horizontal state, meanwhile, the two meat cutting knives 64 are abutted against each other, at this time, the power motor 18 is started, thereby driving the scraping box body 22 to move downwards, the meat cutting box body 17 moves upwards, when the scraping box body 22 moves downwards until the smearing cylinder 48 abuts against the cowhide surface, thereby enabling the smearing cylinder 48 to slide into the first space 34, thereby enabling the mixture with hair removed in the first space 34 to enter the smearing cavity 46, at this time, the air blower 32 is started, thereby enabling the generated hot air to enter the connecting space 47, and be sprayed out through the connecting cavity 50, at this time, the mixture with hair removed is smeared on the cowhide, at this time, the mixture with hair removed is uniformly spread on the cowhide through the even plate 52, the pore on the cow leather is fully opened by the unhairing mixture, the root of the hair is softened, at the same time, the mixture is partially air-dried by hot air in the connecting cavity 50, so that the unhairing mixture and the hair are adhered to facilitate subsequent removal, at the same time, the second box body 36 moves upwards, the meat cutting tool 64 which is turned to be horizontal is abutted to the lower surface of the cow leather, at the same time, the second box body 36 rotates to drive the meat cutting tool 64 to rotate to cut off the meat remained on the lower surface of the cow leather, at the same time, the driving screw rod 15 is driven to drive the power sliding plate 11 to move backwards, so that the cow leather is completely unhaired, when the power sliding plate 11 moves to the rear end, the driving motor 16 is driven to rotate reversely, so that the power sliding plate 11 moves forwards, at the meat cutting motor 41 is turned off, so that the meat cutting tool 64 is reset, simultaneously, the air blowing space 31 is closed, the water pump 25 is started, hot water enters the second flow passage 57 and enters the connecting cavity 50, the sensor 53 senses the hot water, the induction motor 55 is driven to start, the cutter rotating shaft 56 rotates, the hair scraping plate 51 is driven to rotate downwards, the hair scraping plate 51 is abutted to the cowhide, the power sliding plate 11 moves forwards, the hair scraping plate 51 scrapes the cowhide adhered with the hair of the unhairing mixture, the hair of the unhairing mixture and the hair are scraped together, meanwhile, the root of the hair of the cowhide is scraped together, meanwhile, the hot water sprayed out of the connecting cavity 50 can timely flush the completely-scraped cowhide, flaws of the cowhide in the later-stage manufacturing process can be prevented, and the meat cutting box 17 moves forwards, so that the meat cutting cutter 64 cuts the cowhide to cut off leftovers of the cowhide, the flushed water is returned to the return space 43 by starting the return water pump 44 to suck the water into the water holding space 23 for reuse.

The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The pretreatment device for the cowhide tanning system is characterized by comprising a machine body (10), wherein a driving space (12) is arranged in the machine body (10), a driving mechanism used for driving the device to move is arranged in the driving space (12), a working space (21) is arranged on the right side of the driving space (12), a scraping box body (22) is connected to the left side wall of the working space (21) in a sliding manner, a scraping mechanism used for removing the surface hair of the cowhide is arranged in the scraping box body (22), a meat cutting box body (17) is connected to the left side wall of the working space (21) in a sliding manner, a meat cutting mechanism used for removing the meat attached to the cowhide is arranged in the meat cutting box body (17), a backflow mechanism used for flushing the hair water flow of the scraping is arranged on the lower side wall of the working space (21), the scraping mechanism comprises a stirring space (26) arranged in the scraping box body (22), stirring motor (27) has set firmly on side wall on stirring space (26), stirring motor (27) output has set firmly stirring pivot (28), be provided with pivot space (30) in stirring pivot (28), stirring pivot (28) are gone up fixed cover and are equipped with stirring rod (29), stirring space (26) with pivot space (30) are linked together, the pivot space (30) left and right sides is provided with second runner (57) respectively, stirring space (26) left side is provided with deposits water space (23), it has first runner (24) to deposit water space (23) right side wall intercommunication, water pump (25) have set firmly in first runner (24), first runner (24) right side with second runner (57) are linked together, stirring space (26) right side is provided with air blast space (31), air blast space (31) downside wall has set firmly air-blower (32), the air outlet of the air blower (32) is communicated with the second flow channel (57), a first box body (33) is fixedly arranged on the lower end face of the stirring rotating shaft (28), a first space (34) is arranged in the first box body (33), the first space (34) is communicated with the rotating shaft space (30), two third flow channels (58) are arranged on the upper side of the first space (34), each third flow channel (58) is communicated with the corresponding second flow channel (57), five smearing cylinders (48) are slidably connected to the lower side wall of the first space (34), a smearing cavity (46) is arranged in each smearing cylinder (48), a smearing spring (45) is connected between the upper end face of each third flow channel (58) and the upper side wall of the first space (34), two connecting cylinders (49) are fixedly arranged on the lower end face of the first box body (33), two connect the cylinder (49) in be provided with respectively and connect chamber (50), every connect chamber (50) upside and communicate respectively and have connection space (47), every connection space (47) respectively with correspond third runner (58) are linked together, two connect the fixed even board (52) of scraping of terminal surface under cylinder (49), every scribble cylinder (48) respectively with scrape even board (52) sliding connection, every connect chamber (50) and communicate respectively and have induction space (54), inductor (53) have respectively set firmly in every induction space (54), induction motor (55) have respectively set firmly in every induction space (54), every induction motor (55) output has respectively set firmly cutter pivot (56) even, two cutter pivot (56) respectively to keeping away from scrape board (52) central line direction extend run through scrape the terminal surface that even board (52) correspond, and the two cutter rotating shafts (56) are fixedly sleeved with a shaving plate (51), and the rear side wall of the working space (21) is fixedly provided with a working plate (35).

2. A pretreatment device for a kraft system according to claim 1, wherein: the drive mechanism comprises a drive motor (16) fixedly installed on the rear side wall of the drive space (12), a drive lead screw (15) is fixedly arranged at the output end of the drive motor (16), a power sliding plate (11) is connected to the drive lead screw (15) in a threaded manner, a power motor (18) is fixedly arranged on the right end face of the power sliding plate (11), a power lead screw (13) is fixedly arranged at the output end of the power motor (18), a scraping box body (22) extends leftwards to penetrate into the drive space (12), the scraping box body (17) is slidably connected with the power sliding plate (11), the power lead screw (13) is connected with the scraping box body (17) in a threaded manner, and the power lead screw (13) is connected with the scraping box body (22) in a threaded manner, the upper section part and the lower section part of the power screw rod (13) are opposite in thread direction.

3. A pretreatment device for a kraft system according to claim 1, wherein: the meat cutting mechanism comprises a third space (39) arranged in a meat cutting box body (17), a meat cutting motor (41) is fixedly arranged on the lower side wall of the third space (39), a meat cutting rotating shaft (40) is fixedly arranged at the output end of the meat cutting motor (41), the meat cutting rotating shaft (40) extends upwards to penetrate through the upper end surface of the meat cutting box body (17), a second box body (36) is fixedly sleeved on the meat cutting rotating shaft (40), a second space (37) is arranged in the second box body (36), the meat cutting rotating shaft (40) penetrates into the second space (37), a centrifugal sleeve block (69) is fixedly sleeved on the meat cutting rotating shaft (40), two connecting hinged arms (68) are hinged on the centrifugal sleeve block (69), the connecting hinged arms (68) are symmetrically distributed left and right about the central line of the centrifugal sleeve block (69), and each connecting hinged arm (68) is respectively hinged with a centrifugal ball (38), every centrifugal ball (38) is articulated with a hinged connecting rod (67) respectively, every hinged connecting rod (67) extends upwards respectively and penetrates into a corresponding rack space (70), every rack space (70) rear side wall is provided with a meat cutting sliding groove (59) with a forward opening respectively, every meat cutting sliding groove (59) is connected with a meat cutting rack (60) in a sliding manner respectively, every hinged connecting rod (67) is articulated with the corresponding meat cutting rack (60) respectively, every meat cutting rack (60) is close to the end face of the centrifugal sleeve block (69) direction and is close to a space between the side walls of the centrifugal sleeve block (69) direction and a rack spring (66) is connected, every rack space (70) upper side wall is connected with a meat cutting sliding column (63) in a sliding manner respectively, every meat cutting sliding column (63) extends upwards respectively and penetrates through the second box body (36), every cut meat traveller (63) up end and have set firmly respectively and cut meat cutter (64), every cut meat cutter (64) down the terminal surface respectively with be connected with between second box (36) the up end and cut meat spring (65), every cut on meat traveller (63) respectively splined connection have cut meat rack (60), every cut meat rack (60) up end and have set firmly two dead lever (62), two respectively dead lever (62) with correspond side wall sliding connection on rack space (70).

4. A pretreatment device for a kraft system according to claim 1, wherein: the backflow mechanism comprises a backflow space (43) communicated with the lower side wall of the working space (21), a filter screen (42) is fixedly arranged on the upper side wall of the backflow space (43), a backflow channel (19) is communicated with the left side wall of the backflow space (43), a backflow water pump (44) is arranged in the backflow channel (19), and a telescopic elastic pipe (20) is connected between the backflow channel (19) and the water storage space (23).