阅读说明：本技术 一种汽车内饰皮革材料裁切加工工艺 (Cutting processing technology for automobile interior leather material ) 是由 王振东 于 2021-04-14 设计创作，主要内容包括：本发明涉及一种汽车内饰皮革材料裁切加工工艺,其使用了一种汽车内饰皮革材料裁切加工设备,该汽车内饰皮革材料裁切加工设备包括底座与裁切装置,底座上表面设置有裁切装置。本发明可以解决目前存在的问题：在裁切刀具对皮革材料裁切的过程中,并没有对皮革裁切进行表面的抚平处理,从而会导致裁切下来的皮革材料表面出现褶皱的问题,影响到皮革材料应用时的美观度；裁切刀具与皮革材料表面接触时对其有一点压制固定的作用,期间并没有设置其他的对皮革材料裁切区域进行拉平压制的机构,同样容易导致皮革材料裁切效果不好,影响到皮革材料的使用价值。(The invention relates to a cutting processing technology of an automotive interior leather material, which uses an automotive interior leather material cutting processing device. The invention can solve the problems existing at present: in the process of cutting the leather material by the cutting tool, the surface of the cut leather is not flattened, so that the problem of wrinkles on the surface of the cut leather material is caused, and the attractiveness of the leather material in application is influenced; the cutting tool has a little pressing and fixing effect when contacting with the surface of the leather material, and other mechanisms for leveling and pressing the cutting area of the leather material are not arranged in the process, so that the cutting effect of the leather material is not good, and the use value of the leather material is influenced.)

1. The utility model provides an automotive interior leather material cuts processing technology, its uses an automotive interior leather material to cut the processing equipment, and this automotive interior leather material cuts the processing equipment and includes base (1) and cutting device (2), its characterized in that: the specific method for cutting and processing the automotive interior leather material by adopting the automotive interior leather material cutting and processing equipment is as follows:

step one, preparation operation: debugging the automobile interior leather material cutting and processing equipment;

step two, processing and forming the leather material: the raw hide which is just obtained is produced by the steps of liming, laminating, tanning, dyeing, polishing, modifying and top coating protection;

step three, cutting the leather material: winding the leather prepared in the step two on a first winding roller (21), enabling one end of the leather to pass through a position between cutting guide rollers (28) to be connected with a second winding roller (22), then starting a driving unit (23) to drive the first winding roller (21) and the second winding roller (22) to move intermittently, enabling the leather to pass through a cutting unit (29), then cutting the leather out through the cutting unit (29) according to the required shape, and enabling the cut leather to be collected by a material collecting groove frame (24);

step four, installation and application of the leather material: the leather cut in the third step is arranged at the position required by the automobile interior trim;

the upper surface of the base (1) is provided with a cutting device (2); wherein:

the cutting device (2) comprises a cutting frame body (20), a first winding roller (21), a second winding roller (22), a driving unit (23), a material receiving groove frame (24), a cutting slide way (25), a cutting slide block (26), a cutting screw rod (27), a cutting guide roller (28) and a cutting unit (29), wherein the cutting frame body (20) is arranged on the upper surface of the base (1), two pairs of L-shaped grooves are symmetrically formed in the middle upper positions of two ends of the cutting frame body (20) along the length direction of the cutting frame body, each pair of L-shaped grooves are symmetrically arranged, the first winding roller (21) is arranged between the pair of L-shaped grooves in one end of the cutting frame body (20), the second winding roller (22) is arranged between the pair of L-shaped grooves in the other end of the cutting frame body (20), the driving unit (23) is arranged above the position of the second winding roller (22) in the other end of the cutting frame body (20), the material receiving groove frame (24) is arranged, all be connected through the bevel gear meshing between winding up roller (21) and No. two winding up roller (22) and drive unit (23), cut the inside position symmetry that is located between winding up roller (21) and No. two winding up roller (22) of framework (20) and vertically offered two pairs and cut slide (25) and every pair and cut slide (25) position symmetry, it is provided with cutting slider (26) to cut the interior longitudinal symmetry of slide (25), pass cutting screw (27) in cutting slide (25), cut and be connected through screw-thread fit between slider (26) and the cutting screw (27), and be located two cutting slider (26) in same cutting slide (25) and the screw-thread fit direction between cutting slider (27) opposite direction, every pair is provided with between the cutting slider (26) of relative position in cutting slide (25) and cuts deflector roll (28), the distance is less than No. two winding up roller (22) and adjacent cutting deflector roll (28) between winding up roller (21) and the adjacent position The middle position of the cutting frame body (20) is provided with a cutting unit (29);

the cutting unit (29) comprises a cutting rotating rod (290), a cutting cam (291), a cutting motor (292), a cutting support plate (293), a cutting carriage (294), a cutting clamping plate (295) and a cutting knife (296), the cutting rotating rod (290) is arranged at the middle position of the cutting frame body (20) in an up-and-down symmetrical mode along the length direction of the cutting rotating rod, the cutting cam (291) is arranged in the middle of the cutting rotating rod (290), and one end of the cutting rotating rod (290) is provided with a cutting motor (292), cutting support plates (293) are symmetrically arranged at the upper part and the lower part of the position between the two pairs of cutting slideways (25), a cutting sliding frame (294) is arranged in the middle of each cutting support plate (293) in a sliding mode, a return spring is connected between the cutting sliding frame and the cutting support plates, a cutting cam (291) is in fit contact with the upper end of the cutting sliding frame (294), a cutting clamping plate (295) is arranged at the lower end of the cutting sliding frame (294), and a cutting knife (296) is arranged below the cutting clamping.

2. The cutting processing technology of the automobile interior leather material as claimed in claim 1, characterized in that: the driving unit (23) comprises a driving motor (230), a first gear (231), a limiting branched chain (232), a second gear (233), a third gear (234) and a driving shaft lever (235), the driving motor (230) is arranged above the second winding roller (22) at the other end of the cutting frame body (20), output shafts at two ends of the driving motor (230) are symmetrically provided with the first gear (231), the first gear (231) is an incomplete gear, the limiting branched chain (232) is arranged below one side of the first gear (231), the limiting branched chain (232) is provided with the second gear (233), the first gear (231) is meshed with the second gear (233), the third gear (234) is symmetrically arranged at two ends of the second winding roller (22) at the other end of the cutting frame body (20), the second gear (233) is meshed with the third gear (234), the driving shaft lever (235) is symmetrically and transversely arranged in the middle position of the cutting frame body (20) in the width direction, one end of the first winding roller (21) is in meshed connection with one end of the driving shaft lever (235) through a bevel gear, one end of the second winding roller (22) is in meshed connection with the other end of the driving shaft lever (235) through the bevel gear, and the meshed position of the bevel gear between one end of the first winding roller (21) and one end of the driving shaft lever (235) is the same as the meshed position of the bevel gear between one end of the second winding roller (22) and the other end of the driving shaft lever (235).

3. The cutting processing technology of the automobile interior leather material as claimed in claim 1, characterized in that: the two ends of the cutting guide roller (28) are symmetrically provided with auxiliary supports (280), the positions of the four auxiliary supports (280) arranged at the two ends of the cutting guide roller (28) are symmetrically arranged, the auxiliary supports (280) are provided with auxiliary sliding frames (281) in a sliding manner and are connected with auxiliary springs between the two auxiliary sliding frames, the auxiliary sliding frames (281) are provided with auxiliary round rollers (282) in a sliding manner and are connected with supporting springs between the two auxiliary round rollers, positioning clamping teeth (283) are installed on the auxiliary sliding frames (281) through auxiliary screw rods, positioning teeth (284) are arranged above the two ends of the auxiliary round rollers (282), the positioning clamping teeth (283) are in contact with the positioning teeth (284) in a matching manner, one end of the upper surface of each auxiliary support (280) is provided with a pressing frame (285) in a sliding manner and is connected with a reset spring between the two pressing frames, the auxiliary sliding frames (281) are connected with one pressing frame (285) through auxiliary push rods (286), and one pressing frame (287) positioned ) One side of the auxiliary support (280) is provided with a second pressing frame (288) in a sliding manner, a return spring is connected between the two pressing frames, the second pressing frames (288) positioned at two ends of the same cutting guide roller (28) are connected through a second pressing rod (289) before, an auxiliary pressing frame (2880) is arranged between the second pressing frames (288) positioned at two ends of the cutting guide roller (28) at the opposite positions in the two pairs of cutting slideways (25), a first cam (2900) and a second cam (2901) are respectively arranged on the cutting rotating rod (290), the first cam (2900) is in contact connection with the first pressing rod (287), the second cam (2901) is in contact connection with the second pressing rod (289), and the size of the cutting cam (291) is smaller than that of the second cam (2901) and smaller than that of the first cam (2900).

4. The cutting processing technology of the automobile interior leather material as claimed in claim 1, characterized in that: one end, close to a second winding roller (22), of a cutting rotating rod (290) located above the inner portion of the cutting frame body (20) is connected with a blanking rotating rod (2902), a blanking cam (2903) is arranged on the blanking rotating rod (2902), the size of the cutting cam (291) is the same as that of the blanking cam (2903) and the installation position of the cutting cam is opposite to that of the blanking cam (2903), a blanking support plate (2904) is arranged below the blanking rotating rod (2902) in the cutting frame body (20), a blanking sliding rod (2905) is arranged on the blanking support plate (2904) in a sliding mode, a reset spring is connected between the blanking sliding rod (2905) and the blanking cam (2903), and a blanking push plate (2906) is arranged at the lower end of the blanking sliding rod (290.

5. The cutting processing technology of the automobile interior leather material as claimed in claim 2, characterized in that: the limiting branched chain (232) comprises a limiting frame body (2320), a limiting shaft rod (2321), a limiting ratchet wheel (2322) and a limiting pawl (2323), the limiting frame body (2320) is arranged below one side of the first gear (231), a limiting cavity is arranged inside the limiting frame body (2320), the limiting shaft rod (2321) is arranged in the middle of the limiting cavity, the limiting ratchet wheel (2322) is arranged on the limiting shaft rod (2321), the limiting pawl (2323) is uniformly arranged on the side wall of the limiting cavity in a rotating mode along the circumferential direction of the side wall of the limiting cavity, a limiting spring is connected between the limiting ratchet wheel (2322) and the limiting pawl (2323), and the limiting ratchet wheel (.

6. The cutting processing technology of the automobile interior leather material as claimed in claim 3, characterized in that: the one end of supplementary circle roller (282) is provided with right angle board (2820), is located and is connected through flexible round bar (2821) between right angle board (2820) to every two cutting guide roller (28) same end departments that cut in slide (25), cuts and is connected through the bevel gear meshing between guide roller (28) and flexible round bar (2821), and is located every two bevel gear meshing connected position symmetries between cutting guide roller (28) same end and flexible round bar (2821) of cutting in slide (25).

Technical Field

The invention belongs to the field of automobile interior trim processing, and particularly relates to a cutting processing technology of an automobile interior trim leather material.

Background

The leather material is animal leather 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 surface layer which has natural grains and luster and comfortable hand feeling. Among the uses of leather materials, the leather materials are widely popularized and used as automotive interiors nowadays, so that the automotive interiors are more attractive and comfortable. When the leather material is applied to the automotive interior, the leather needs to be cut, so that the leather can be better matched with the mounting position of the automotive interior design, and the attractiveness of the automotive interior is improved.

At present, the leather material for the automotive interior has the following problems in the cutting process:

1. when the existing leather material is cut, the cutting device intermittently controls the leather material to pass through the cutting tool, then the cutting tool cuts the leather material, and the surface of the cut leather material is not flattened during the cutting process of the leather material by the cutting tool, so that the problem of wrinkles on the surface of the cut leather material is caused, and the attractiveness of the leather material in application is influenced;

2. when the existing leather material is cut, in the process of cutting the leather material by the cutting tool, the cutting tool has a little pressing and fixing effect when being in contact with the surface of the leather material, and other mechanisms for flattening and pressing the cutting area of the leather material are not arranged in the process, so that the cutting effect of the leather material is poor, and the use value of the leather material is influenced.

Disclosure of Invention

The invention aims to provide a cutting processing technology of an automotive interior leather material, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an automotive interior leather material cuts processing technology, it has used an automotive interior leather material to cut the processing equipment, and this automotive interior leather material cuts the processing equipment and includes base and cutting device, adopts above-mentioned automotive interior leather material to cut the processing equipment and cut the processing concrete method as follows to automotive interior leather material:

step one, preparation operation: debugging the automobile interior leather material cutting and processing equipment;

step two, processing and forming the leather material: the raw hide which is just obtained is produced by the steps of liming, laminating, tanning, dyeing, polishing, modifying and top coating protection;

step three, cutting the leather material: winding the leather prepared in the step two on a first winding roller, enabling one end of the leather to pass through a cutting guide roller and be connected with a second winding roller, then starting a driving unit to drive the first winding roller and the second winding roller to move intermittently, enabling the leather to pass through a cutting unit, then cutting the leather out through the cutting unit according to the required shape, and enabling the cut leather to be collected by a material collecting groove frame in a centralized mode;

step four, installation and application of the leather material: the leather cut in the third step is arranged at the position required by the automobile interior trim;

a cutting device is arranged on the upper surface of the base; wherein:

the cutting device comprises a cutting frame body, a first winding roll, a second winding roll, a driving unit, a material receiving groove frame, a cutting slideway, a cutting slide block, a cutting screw rod, a cutting guide roller and a cutting unit, wherein the upper surface of a base is provided with the cutting frame body, two pairs of L-shaped grooves are symmetrically arranged at the middle upper parts of the two ends of the cutting frame body along the length direction of the cutting frame body, each pair of L-shaped grooves is symmetrically arranged, the first winding roll is arranged between the pair of L-shaped grooves at one end of the cutting frame body, the second winding roll is arranged between the pair of L-shaped grooves at the other end of the cutting frame body, the driving unit is arranged above the second winding roll at the other end of the cutting frame body, the material receiving groove frame is arranged below the second winding roll at the other end of the cutting frame body, the first winding roll and the second winding roll are respectively connected with the driving unit in a meshing manner through bevel gears, two pairs of cutting slideways are, cutting slide blocks are symmetrically arranged in the cutting slide way in an up-down sliding mode, a cutting screw rod penetrates through the cutting slide way, the cutting slide blocks are connected with the cutting screw rod in a threaded fit mode, the thread fit directions of the two cutting slide blocks in the same cutting slide way and the cutting screw rod are opposite, a cutting guide roller is arranged between each pair of cutting slide blocks at opposite positions in the cutting slide way, the distance between the first winding roller and the adjacent cutting guide roller is smaller than the distance between the second winding roller and the adjacent cutting guide roller, and a cutting unit is arranged in the middle of the cutting frame body;

the unit cuts including cutting the bull stick, cut the cam, cut the motor, cut the extension board, cut the balladeur train, cut the cardboard and cut the sword, it is provided with along its length direction longitudinal symmetry and cuts the bull stick to cut framework intermediate position, it is provided with the cutting cam to cut in the middle of the bull stick, and the one end that cuts the bull stick is provided with and cuts the motor, it is provided with to cut the extension board to be located two pairs of upper and lower symmetries that cut between the slide, it is provided with and cuts the balladeur train and be connected with reset spring between the two to cut the middle slip of extension board, cut the cam and cut the cooperation contact between the balladeur train upper end.

As a further scheme of the invention: the driving unit comprises a driving motor, a first gear, a limiting branch chain, a second gear, a third gear and a driving shaft lever, the driving motor is arranged above a second winding roller at the other end of the cutting frame body, output shafts at two ends of the driving motor are symmetrically provided with the first gear, the first gear is an incomplete gear, the limiting branch chain is arranged below one side of the first gear, the second gear is arranged on the limiting branch chain, the first gear is meshed with the second gear, the third gear is symmetrically arranged at two ends of the second winding roller at the other end of the cutting frame body, the second gear is meshed with the third gear, the driving shaft lever is symmetrically and transversely arranged in the middle of the cutting frame body along the width direction of the cutting frame body, one end of the first winding roller is meshed with one end of the driving shaft lever through a bevel gear, one end of the second winding roller is meshed with the other end of the driving shaft lever, the bevel gear meshing position between one end of the first winding roller and one end of the driving shaft lever is the same as that between one end of the second winding roller and the other end of the driving shaft lever.

As a further scheme of the invention: auxiliary supports are symmetrically arranged at two ends of the cutting guide roller, the positions of the auxiliary supports arranged at two ends of the four cutting guide rollers are symmetrically arranged, an auxiliary sliding frame is arranged on the auxiliary supports in a sliding mode, an auxiliary spring is connected between the auxiliary sliding frame and the auxiliary sliding frame, an auxiliary round roller is arranged on the auxiliary sliding frame in a sliding mode, a supporting spring is connected between the auxiliary sliding frame and the auxiliary round roller, a positioning latch is arranged on the auxiliary sliding frame through an auxiliary screw rod, positioning teeth are arranged above two ends of the auxiliary round roller and are in matched contact with the positioning latches, a first pressing frame is arranged at one end of the upper surface of the auxiliary support in a sliding mode, a reset spring is connected between the first pressing frame and the second pressing frame, a first pressing rod is arranged between the first pressing frames at two ends of the same cutting guide roller, a second pressing frame is arranged on one side face of the auxiliary supporting frames in a sliding mode, a reset spring is, be located two pairs of slide relative positions that cut and be provided with supplementary pressure frame between the No. two pressure framves at deflector roll both ends that cut, cut and be provided with a cam and No. two cams on the bull stick respectively, a cam and depression bar contact are connected, and No. two cams and No. two depression bar contact are connected, cut the cam size and be less than No. two cam sizes and be less than a cam size.

As a further scheme of the invention: lie in cut the inside top of framework cut the bull stick and be close to the one end of No. two winding up rollers and be connected with the unloading bull stick, be provided with the unloading cam on the unloading bull stick, cut the same and the mounted position of cam size and unloading cam size relative, cut and lie in the unloading bull stick below position in the framework and be provided with the unloading extension board, slide on the unloading extension board and be provided with the unloading slide bar and be connected with reset spring between the two, the contact is connected between unloading cam and the unloading slide bar upper end, unloading slide bar lower extreme is provided with the unloading push pedal.

As a further scheme of the invention: the limiting branched chain comprises a limiting frame body, a limiting shaft rod, a limiting ratchet wheel and a limiting pawl, the limiting frame body is arranged below one side of the first gear, a limiting cavity is arranged inside the limiting frame body, the limiting shaft rod is arranged in the middle of the limiting cavity, the limiting ratchet wheel is arranged on the limiting shaft rod, the limiting pawl is uniformly arranged on the side wall of the limiting cavity in a rotating mode along the circumferential direction of the limiting cavity, a limiting spring is connected between the limiting pawl and the limiting pawl, and the limiting ratchet wheel is connected with the limiting.

As a further scheme of the invention: the one end of supplementary round roller is provided with the right angle board, is located and is connected through flexible round bar between every two right angle boards that cut the same end department of deflector roll that cut in the slide, cuts and is connected through the bevel gear meshing between deflector roll and the flexible round bar, and is located every two bevel gear meshing hookup location symmetries that cut between the same end of deflector roll and the flexible round bar that cut in the slide.

Compared with the prior art, the invention has the following advantages:

the cutting machine can solve the following problems in the prior art when leather materials for automobile interiors are cut and processed:

1. when the existing leather material is cut, the cutting device intermittently controls the leather material to pass through the cutting tool, then the cutting tool cuts the leather material, and the surface of the cut leather material is not flattened during the cutting process of the leather material by the cutting tool, so that the problem of wrinkles on the surface of the cut leather material is caused, and the attractiveness of the leather material in application is influenced;

2. when the existing leather material is cut, in the process of cutting the leather material by a cutting tool, the cutting tool has a little pressing and fixing effect when being contacted with the surface of the leather material, and other mechanisms for flattening and pressing the cutting area of the leather material are not arranged in the process, so that the cutting effect of the leather material is poor, and the use value of the leather material is influenced;

3. when the device is used for cutting and processing leather materials for automotive interiors, the driving unit intermittently controls the leather materials to pass through the cutting unit, the auxiliary round roller can firstly smooth the surface of the leather materials entering the middle position of the cutting unit, the auxiliary round roller can gradually cling to the surface of the leather materials under the action of the first pressing frame before the cutting unit cuts the leather materials, then four corners of the cutting area of the leather materials are simultaneously stretched towards four directions, so that the surface of the leather materials is in an absolutely flat state, then the second pressing frame can enable the auxiliary pressing frame to press and fix the cutting area of the leather materials, and finally when the cutting tool cuts the leather, the cutting effect and the application value of the leather can be effectively improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a flow chart of the operation of the present invention;

FIG. 2 is a schematic front perspective view of the present invention;

FIG. 3 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 4 is a perspective view of the auxiliary stand of the present invention;

FIG. 5 is a rear perspective view of the present invention;

FIG. 6 is a cross-sectional view of the auxiliary carriage of the present invention;

FIG. 7 is an enlarged view of FIG. 4 at A in accordance with the present invention;

FIG. 8 is a schematic cross-sectional view of a spacing branch of the present invention;

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 8.

The utility model provides an automotive interior leather material cuts processing technology, it has used an automotive interior leather material to cut the processing equipment, and this automotive interior leather material cuts the processing equipment and includes base 1 and cutting device 2, adopts above-mentioned automotive interior leather material to cut the processing equipment and cut the processing concrete method as follows to automotive interior leather material:

step one, preparation operation: debugging the automobile interior leather material cutting and processing equipment;

step two, processing and forming the leather material: the raw hide which is just obtained is produced by the steps of liming, laminating, tanning, dyeing, polishing, modifying and top coating protection;

step three, cutting the leather material: winding the leather prepared in the step two on a first winding roller 21, enabling one end of the leather to pass through a position between cutting guide rollers 28 to be connected with a second winding roller 22, then starting a driving unit 23 to drive the first winding roller 21 and the second winding roller 22 to move intermittently, enabling the leather to pass through a cutting unit 29, then cutting the leather out through the cutting unit 29 according to the required shape, and enabling the cut leather to be collected by a material collecting groove frame 24 in a centralized mode;

step four, installation and application of the leather material: the leather cut in the third step is arranged at the position required by the automobile interior trim;

the upper surface of the base 1 is provided with a cutting device 2; wherein:

the cutting device 2 comprises a cutting frame body 20, a first winding roller 21, a second winding roller 22, a driving unit 23, a material receiving groove frame 24, a cutting slide way 25, a cutting slide block 26, a cutting screw 27, a cutting guide roller 28 and a cutting unit 29, wherein the upper surface of the base 1 is provided with the cutting frame body 20, two pairs of L-shaped grooves are symmetrically arranged at the middle upper positions of two ends of the cutting frame body 20 along the length direction of the cutting frame body, each pair of L-shaped grooves are symmetrically arranged, the first winding roller 21 is arranged between the pair of L-shaped grooves at one end of the cutting frame body 20, the second winding roller 22 is arranged between the pair of L-shaped grooves at the other end of the cutting frame body 20, the driving unit 23 is arranged above the second winding roller 22 at the other end of the cutting frame body 20, the material receiving groove frame 24 is arranged below the second winding roller 22 at the other end of the cutting frame body 20, the first winding roller 21, two pairs of cutting slide ways 25 are symmetrically and vertically arranged in the cutting frame body 20 between the first winding roller 21 and the second winding roller 22, each pair of cutting slide ways 25 are symmetrically arranged, cutting slide blocks 26 are symmetrically and vertically arranged in the cutting slide ways 25 in a sliding manner, cutting screw rods 27 penetrate through the cutting slide ways 25, the cutting slide blocks 26 are connected with the cutting screw rods 27 in a threaded fit manner, the thread fit directions of the two cutting slide blocks 26 in the same cutting slide way 25 and the cutting screw rods 27 are opposite, a cutting guide roller 28 is arranged between the cutting slide blocks 26 in opposite positions in each pair of cutting slide ways 25, the distance between the first winding roller 21 and the adjacent cutting guide roller 28 is smaller than that between the second winding roller 22 and the adjacent cutting guide roller 28, and a cutting unit 29 is arranged in the middle of the cutting frame body 20;

when the leather cutting machine works specifically, the leather manufactured in the step two is wound on the first winding roller 21, one end of the leather is connected with the second winding roller 22 after passing through the position between the cutting guide rollers 28, then the driving unit 23 is started to drive the first winding roller 21 and the second winding roller 22 to move synchronously and intermittently, the cutting screw 27 is rotated to adjust the distance between the two cutting sliders 26 in the same cutting slide way 25, the cutting guide rollers 28 can be attached to the surface of the leather material, when the driving unit 23 drives the leather material to intermittently pass through the cutting unit 29, the cutting unit 29 can cut the leather material, the cut leather material can fall into the material receiving groove frame 24 through external force to be collected in a centralized mode after moving to the next position along with the driving of the driving unit 23.

The driving unit 23 comprises a driving motor 230, a first gear 231, a limiting branch chain 232, a second gear 233, a third gear 234 and a driving shaft rod 235, the driving motor 230 is arranged above the second winding roller 22 at the other end of the cutting frame body 20, the first gear 231 is symmetrically arranged on the output shaft at the two ends of the driving motor 230, the first gear 231 is an incomplete gear, the limiting branch chain 232 is arranged below one side of the first gear 231, the second gear 233 is arranged on the limiting branch chain 232, the first gear 231 is meshed and connected with the second gear 233, the third gear 234 is symmetrically arranged at the two ends of the second winding roller 22 at the other end of the cutting frame body 20, the second gear 233 is meshed and connected with the third gear 234, the driving shaft rod 235 is symmetrically and transversely arranged at the middle upper position of the cutting frame body 20 along the width direction, one end of the first winding roller shaft rod 21 is meshed and connected with one end of the driving shaft rod 235, one end of the second winding roller 22 is in meshing connection with the other end of the driving shaft rod 235 through a bevel gear, and the meshing position of the bevel gear between one end of the first winding roller 21 and one end of the driving shaft rod 235 is the same as the meshing position of the bevel gear between one end of the second winding roller 22 and the other end of the driving shaft rod 235;

during the operation, the driving motor 230 will rotate along one direction with the second gear 233 on the limiting branch 232 through the first gear 231, then the second gear 233 will rotate along the third gear 234 to drive the second winding roller 22 to rotate, because the first gear 231 is an incomplete gear, the first gear 231 will drive the second gear 233 to rotate intermittently, thereby the second winding roller 22 will rotate synchronously with the first winding roller 21 through the driving shaft 235, because the bevel gear meshing position between one end of the first winding roller 21 and one end of the driving shaft 235 is the same as the bevel gear meshing position between one end of the second winding roller 22 and the other end of the driving shaft 235, the first winding roller 21 and the second winding roller 22 will rotate synchronously along the same direction, and when the cutting unit 29 cuts the leather material during the intermittent movement of the leather material, the limiting branched chain 232 can effectively prevent the leather material from moving reversely, so that the cutting effect of the leather material is ensured.

The limiting branched chain 232 comprises a limiting frame body 2320, a limiting shaft rod 2321, a limiting ratchet 2322 and a limiting pawl 2323, the limiting frame body 2320 is arranged below one side of the first gear 231, a limiting cavity is arranged inside the limiting frame body 2320, the limiting shaft rod 2321 is arranged in the middle of the limiting cavity, the limiting ratchet 2322 is arranged on the limiting shaft rod 2321, the limiting pawl 2323 is uniformly arranged on the side wall of the limiting cavity in a rotating mode along the circumferential direction of the limiting cavity, a limiting spring is connected between the limiting ratchet 2322 and the limiting pawl 2323, and the limiting ratchet 2322 is connected with the limiting pawl;

when the second gear 233 is driven by the first gear 231 to rotate, the limiting shaft 2321 drives the limiting ratchet 2322 to rotate in one direction in the limiting cavity in the limiting frame 2320, when the leather material is pressed by the cutting unit 29 and tends to move in the reverse direction, the second winding roller 22 drives the second gear 233 to rotate in the reverse direction through the third gear 234, and at the moment, the limiting pawl 2323 limits the reverse rotation of the limiting ratchet 2322 under the action of the limiting spring, so that the purpose of limiting the reverse rotation of the second winding roller 22 is achieved.

The cutting unit 29 comprises a cutting rotating rod 290, a cutting cam 291, a cutting motor 292, cutting support plates 293, a cutting sliding frame 294, cutting clamping plates 295 and cutting knives 296, the cutting rotating rod 290 is symmetrically arranged at the middle position of the cutting frame body 20 along the length direction of the cutting rotating rod up and down, the cutting cam 291 is arranged in the middle of the cutting rotating rod 290, the cutting motor 292 is arranged at one end of the cutting rotating rod 290, the cutting support plates 293 are symmetrically arranged up and down between the two pairs of cutting slideways 25, the cutting sliding frame 294 is arranged in the middle of the cutting support plates 293 in a sliding mode, a return spring is connected between the cutting sliding frame 294 and the cutting sliding frame 294, the cutting cam 291 is in matched contact with the upper ends of the cutting sliding frames 294, the cutting clamping plates 295 are;

during specific work, the cutting motor 292 rotates to drive the cutting rotating rod 290 to rotate, so that the cutting cam 291 on the cutting rotating rod 290 can be intermittently contacted with the upper end of the cutting sliding frame 294 on the cutting support plate 293, the cutting sliding frame 294 is pressed downwards, the cutting sliding frame 294 moves downwards to drive the cutting knife 296 on the cutting clamping plate 295 to cut the leather material, due to the action of the reset spring, the cutting sliding frame 294 can move up and down in a reciprocating mode, and therefore the intermittent cutting processing of the leather material by the cutting knife 296 is alternately carried out with the intermittent movement of the leather material driven by the driving unit 23.

The two ends of the cutting guide roller 28 are symmetrically provided with auxiliary supports 280, the positions of the auxiliary supports 280 arranged at the two ends of the four cutting guide rollers 28 are symmetrically arranged, an auxiliary carriage 281 is arranged on the auxiliary support 280 in a sliding manner, an auxiliary spring is connected between the auxiliary carriage 281 and the auxiliary carriage, an auxiliary round roller 282 is arranged on the auxiliary carriage 281 in a sliding manner, a supporting spring is connected between the auxiliary carriage 281 and the auxiliary round roller, a positioning latch 283 is arranged on the auxiliary carriage 281 through an auxiliary screw rod, positioning teeth 284 are arranged above the two ends of the auxiliary round roller 282, the positioning latch 283 is in matched contact with the positioning teeth 284, one end of the upper surface of the auxiliary support 280 is provided with a first pressure frame 285 in a sliding manner, a return spring is connected between the first pressure frame 285, the auxiliary carriage 281 and the first pressure frame 285 are connected through an auxiliary push rod 286, a first pressure rod 287 is arranged between the first pressure frames 285 at the two ends of, the second pressing frames 288 at two ends of the same cutting guide roller 28 are connected by a second pressing rod 289, an auxiliary pressing frame 2880 is arranged between the second pressing frames 288 at two ends of the cutting guide roller 28 at opposite positions in the two pairs of cutting slideways 25, the cutting rotating rod 290 is respectively provided with a first cam 2900 and a second cam 2901, the first cam 2900 is in contact connection with the first pressing rod 287, the second cam 2901 is in contact connection with the second pressing rod 289, and the cutting cam 291 is smaller than the second cam 2901 and smaller than the first cam 2900;

in operation, when the driving unit 23 intermittently rotates with the first roller 21 and the second roller 22, the auxiliary roller 282 smoothes the upper and lower surfaces of the leather material, when the cutting unit 29 cuts the leather material, the cutting rotary rod 290 rotates with the first cam 2900 and the second cam 2901 synchronously, then the first cam 2900 presses down the first press rod 287 to move the first press frame 285 down on the auxiliary bracket 280, and pushes the auxiliary carriage 281 by the auxiliary push rod 286 to move on the auxiliary bracket 280, so that the auxiliary carriage 281 is attached to the surface of the leather material to flatten the four corners of the cut area of the leather material in four directions, and then the second cam 2901 presses down the second press rod 289 to push the second press frame 288 to press and fix the four sides of the cut area of the leather material by the auxiliary press frame 2880, when the cutting unit 29 performs the cutting process on the leather material, the effect of cutting the leather material can be better.

A right-angle plate 2820 is arranged at one end of the auxiliary round roller 282, the right-angle plates 2820 at the same ends of the two cutting guide rollers 28 in each pair of cutting slideways 25 are connected through a telescopic round rod 2821, the cutting guide rollers 28 are in meshing connection with the telescopic round rod 2821 through bevel gears, and the meshing connection positions of the bevel gears between the same ends of the two cutting guide rollers 28 in each pair of cutting slideways 25 and the telescopic round rod 2821 are symmetrical; in the specific operation, the auxiliary round rollers 282 are driven by the leather material to rotate, and the telescopic round rod 2821 can enable the rotation process of the two auxiliary round rollers 282 which are symmetrical in the upper and lower positions to be synchronous, so that the surface of the leather material is smoothed and the leveling effect is good.

One end of the cutting rotating rod 290, which is positioned above the inside of the cutting frame body 20 and is close to the second winding roller 22, is connected with a blanking rotating rod 2902, a blanking cam 2903 is arranged on the blanking rotating rod 2902, the size of the cutting cam 291 is the same as that of the blanking cam 2903, the installation position of the cutting cam is opposite to that of the blanking cam 2903, a blanking support plate 2904 is arranged below the blanking rotating rod 2902 in the cutting frame body 20, a blanking slide rod 2905 is arranged on the blanking support plate 2904 in a sliding manner, a reset spring is connected between the blanking slide rod 2905 and the blanking cam 2903, the upper end of the blanking slide rod 2905 is connected in a contact; during specific work, when the cutting unit 29 cuts leather materials, the cutting rotating rod 290 drives the blanking rotating rod 2902 to rotate synchronously, so that the blanking cam 2903 pushes down the upper end of the blanking sliding rod 2905 on the blanking supporting plate 2904, then the blanking sliding rod 2905 pushes the blanking push plate 2906 to push the cut position on the leather materials, and the cut leather is pushed to fall in the material receiving groove frame 24 to be collected.

The foregoing illustrates and describes the principles, general features, and advantages of the present 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.