Leather vamp forming device and operation method

Abstract

The invention discloses a leather vamp forming device and an operation method, and belongs to the technical field of leather vamp processing.The leather vamp forming device is provided with electric push rods, a conveying roller, a compression spring, a flattening roller, a second two-way screw and a guide plate, leather is pulled to be lapped on the surface of the conveying roller, and the four sets of electric push rods are controlled to contract to drive a mounting top plate to move downwards to be close to a second mounting frame; the pressing spring is extruded and deformed between the mounting top plate and the pressing frame until the pressing roller is tightly attached to the surface of the leather, the pressing roller is pressed on the surface of the leather under the rebound action of the pressing spring, the leather is pulled to move between the conveying roller and the pressing roller, and therefore the pressing roller and the conveying roller can press the leather; the overall flattening efficiency of a long leather material is improved, wrinkles on the surface of leather are eliminated, the leather is smoother and flatter, the leather is effectively flattened, the quality and appearance of the leather are improved, and the subsequent leather vamp forming quality is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of leather upper processing, and in particular relates to a leather upper forming device and an operating method. Background Art

[0002] Leather upper refers to the material used to make the upper part of shoes, usually natural leather or synthetic leather. Natural leather uppers have the advantages of softness, good breathability, warmth, folding resistance, and durability. When producing and processing leather uppers, it is necessary to go through multiple processing steps. Among them, leather upper molding processing is an important step in leather upper processing. The leather material can be processed into the shape of the corresponding upper. During the leather molding process, the leather material needs to be flattened to ensure the flatness and smoothness of the leather material surface, which is crucial to the quality and appearance of the final product.

[0003] Existing leather upper forming devices usually adopt a platform pressing method when flattening leather materials. The leather material is placed between two sets of platforms and the two sets of platforms are squeezed to flatten the leather material. It is difficult to flatten the longer leather material as a whole, and the efficiency of flattening the leather material as a whole is low. At the same time, it is easy to waste the leather material when cutting and flattening the leather material. Therefore, improvement is needed. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a leather upper forming device and an operating method, which solves the problem that the existing leather upper forming device usually adopts a platform pressing method when flattening the leather material, places the leather material between two groups of platforms, and squeezes the two groups of platforms to flatten the leather material, which makes it difficult to flatten the longer leather material as a whole, and has low efficiency in flattening the leather material as a whole.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a leather upper forming device, comprising a base frame, a mounting frame 1 is fixedly installed on one side of the top of the base frame, an adjusting mechanism is symmetrically arranged inside the mounting frame 1, a fixing strip is respectively arranged between two groups of the adjusting mechanism, a working-type winding drum is arranged between the two groups of the fixing strips, a mounting frame 2 is fixedly installed on one side of the top of the base frame located on the mounting frame 1, two groups of conveying rollers are fixedly installed inside the mounting frame 2, electric push rods are symmetrically fixedly installed on both sides of the mounting frame 2, a mounting top plate is fixedly installed on the top of the four groups of electric push rods, and a concave guide frame is fixedly installed on the side of the mounting frame 2 away from the mounting frame 1.

[0006] As a further solution of the present invention: the inner wall of the mounting frame 1 is symmetrically provided with a limiting slide groove 1 on both sides, the mounting frame 1 is symmetrically provided with a rectangular groove on both sides, and the inner side of the rectangular groove is symmetrically provided with a limiting slide groove 2 on both sides.

[0007] As a further solution of the present invention: the adjustment mechanism includes a bidirectional screw rod 1, both ends of which are rotatably connected to the inner wall of the rectangular groove, and a movable frame is symmetrically provided on the surface of the bidirectional screw rod 1 located inside the rectangular groove, and limiting protrusions are symmetrically fixedly installed on both sides of the movable frame, and the limiting protrusions are slidably connected to the inside of the limiting sliding groove 2.

[0008] As a further solution of the present invention: a rotating frame is rotatably installed on one side of the mobile frame, and two groups of rotating frames are rotatably connected to a connecting frame at one end away from the mobile frame, one end of the bidirectional screw rod passes through a rectangular groove and extends to the outside of a mounting frame where a locking stud is fixedly installed, and a locking screw sleeve is provided on the surface of the locking stud rod.

[0009] As a further solution of the present invention: the fixed bar is fixedly connected to the surface of the connecting frame, a turntable is rotatably installed at the central position of one side of the fixed bar away from the connecting frame, and the positions of the two groups of turntables correspond, positioning protrusions are symmetrically fixedly installed on one side of the turntable, limiting rollers are symmetrically fixedly installed at both ends of the fixed bar, and the positions of the limiting rollers and the limiting slide groove 1 correspond, a group of the turntables are fixedly installed with gear 1, and the surface of gear 1 is meshed with gear 2, a rotating motor is fixedly installed on one side of the gear 2, and the rotating motor is fixedly connected to the fixed bar.

[0010] As a further solution of the present invention: positioning holes are symmetrically provided at both ends of the I-shaped winding drum, and the positions of the positioning holes and the positioning protrusions correspond to each other and have the same shape.

[0011] As a further solution of the present invention: a connecting plate is provided on the top of the mounting top plate, a plurality of groups of clamping columns are fixedly installed on the bottom of the connecting plate, and a clamping frame is fixedly installed on the bottom ends of the plurality of groups of clamping columns through the mounting top plate, the clamping frame is located between the mounting top plate and the clamping frame, a clamping spring is provided on the surface of the clamping frame, and two groups of flattening rollers are rotatably installed on the bottom of the clamping frame.

[0012] As a further solution of the present invention: a two-way screw is rotatably installed inside the concave guide frame, and limiting slide bars are symmetrically fixedly installed on both sides of the concave guide frame. Guide plates are slidably installed on the surfaces of both sides of the two-way screw and the surfaces of the limiting slide bars, and two locking studs are fixedly installed on both ends of the two-way screw through the concave guide frame, and two locking screw sleeves are provided on the surface of the two locking studs.

[0013] An operating method of a leather upper forming device, the operating method comprising the following steps: The two sets of guide plates on the surface of the two-way screws are moved in opposite directions, and the distance between the two sets of guide plates is adjusted according to the size of the leather, and then the two sets of guide plates are locked and fixed by tightening the two sets of guide plates. At the same time, the two sets of locking screw sleeves are controlled to rotate synchronously by the two sets of locking screw sleeves, so that the two sets of moving frames on the surface of the locking screws move inside the rectangular groove, so that the rotating frame pulls the connecting frame to control the distance between the two sets of connecting frames, and the two sets of connecting frames drive the fixing strips to move inside the mounting frame until the turntable between the two sets of fixing strips is put into the corresponding industrial winding drum, and the positioning holes at both ends of the industrial winding drum are correspondingly stuck on the positioning protrusions on the surface of the turntable, and the locking studs are rotated in the opposite direction to make the two sets of moving frames lift up the rotating frame so that the two sets of connecting frames are close to each other until the turntable is clamped on both sides of the industrial winding drum, and the locking screw sleeves are tightened to lock and fix the two sets of The four groups of electric push rods are controlled to extend and retract synchronously to drive the installation top plate to move up, so that the flattening roller is away from the conveying roller, and the leather is pulled through the two groups of guide plates and placed between the conveying roller and the flattening roller. The electric push rods are controlled to retract to move the installation top plate downward until the flattening roller is close to the leather surface, and the electric push rods are controlled to continue to retract to compress and deform the clamping spring between the installation top plate and the clamping frame. Under the rebound action of the clamping spring, the flattening roller is pressed against the leather surface, so that the wrinkles and unevenness on the leather surface are eliminated when the leather slides between the flattening roller and the conveying roller, and the leather is pulled to be wound on the surface of the industrial winding drum, and the rotating motor is started to control gear two to rotate. Under the meshing action of gear two and gear one, the turntable drives the industrial winding drum to rotate, thereby winding the leather that has been flattened and formed by the flattening roller and the conveying roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, an electric push rod, a conveying roller, a clamping spring, a flattening roller, a bidirectional screw rod 2 and a guide plate are provided, the bidirectional screw rod 2 is controlled to rotate, the distance between the two groups of guide plates is adjusted to be close to the leather surface, and then the four groups of electric push rods are controlled to extend, so that the mounting top plate moves up to drive the flattening roller away from the conveying roller, and the leather is pulled to rest on the surface of the transmission roller, and the four groups of electric push rods are controlled to contract to drive the mounting top plate to move down close to the mounting frame 2 until the flattening roller is close to the leather surface, so that the clamping spring is squeezed and deformed between the mounting top plate and the clamping frame, and the flattening roller is pressed against the leather surface under the rebound action of the clamping spring, and the leather is pulled to move between the conveying roller and the flattening roller, so that the flattening roller and the conveying roller can flatten the leather, thereby improving the efficiency of overall flattening of longer leather materials, eliminating wrinkles on the leather surface, making the leather smoother and flatter, effectively flattening the leather, improving the quality and appearance of the leather, and ensuring the quality of subsequent leather upper molding.

[0015] In the present invention, a bidirectional screw rod 1, a rotating frame, a fixed bar, a rotating disk, a rotating motor and an industrial-type winding drum are arranged, and the industrial-type winding drum is suspended between two sets of rotating disks, and the two sets of bidirectional screw rods are controlled to rotate synchronously, so that the movable frames corresponding to the surfaces of the two sets of bidirectional screw rods move in opposite directions, and the rotating frame is controlled to lift the connecting frame, and the two sets of fixed bars are pushed closer to each other until the two sets of rotating disks are tightly attached to the two sides of the industrial-type winding drum, so that the positioning protrusions are inserted into the corresponding positioning holes, and after the leather is pulled through the concave guide frame, the conveying roller and the flattening roller and is wound on the surface of the industrial-type winding drum, the rotating motor is started, and the turntable is controlled to drive the industrial-type winding drum to rotate under the meshing action of gear 1 and gear 2, so that the leather flattened by the conveying roller and the flattening roller is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the mounting frame 1, the adjustment mechanism and the fixing strip of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 It is a structural schematic diagram of the I-type winding drum of the present invention; Figure 5 It is a structural schematic diagram of the second mounting frame, the electric push rod and the mounting top plate of the present invention; Figure 6 It is a schematic structural diagram of the concave guide frame and the bidirectional screw rod 2 of the present invention; In the figure: 1, base frame; 2, mounting frame 1; 201, limit slide 1; 202, rectangular groove; 203, limit slide 2; 3, adjustment mechanism; 301, two-way screw 1; 302, moving frame; 303, limit convex block; 304, rotating frame; 305, connecting frame; 306, locking stud 1; 307, locking screw sleeve 1; 4, fixing strip; 401, turntable; 402, positioning convex block; 403, limit roller; 404, gear 1; 405, gear 2; 406, rotating motor; 5, industrial winding drum; 501, positioning hole; 6, mounting frame 2; 7, conveying roller; 8, electric push rod; 9, mounting top plate; 901, connecting plate; 902, clamping column; 903, clamping frame; 904, clamping spring; 905, flattening roller; 10, concave guide frame; 1001, two-way screw rod 2; 1002, limit slide rod; 1003, guide plate; 1004, locking stud rod 2; 1005, locking screw sleeve 2. DETAILED DESCRIPTION

[0017] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0018] like Figure 1-6As shown, the present invention provides a technical solution: a leather upper forming device, comprising a base frame 1, a mounting frame 2 is fixedly installed on one side of the top of the base frame 1, rectangular grooves 202 are symmetrically provided on both sides of the mounting frame 2, limiting slide grooves 203 are symmetrically provided on both sides of the rectangular groove 202, and limiting protrusions 303 are symmetrically fixedly installed on both sides of a movable frame 302, and the limiting protrusions 303 are slidably connected to the inside of the limiting slide grooves 203. By providing the limiting slide grooves 203 and the limiting protrusions 303, when the movable frame 302 moves inside the rectangular groove 202, the limiting protrusions 303 are driven to slide inside the corresponding limiting slide grooves 203, thereby clamping and limiting the movable frame 302, ensuring that the movable frame 302 will not be deflected or misaligned when moving inside the rectangular groove 202.

[0019] An adjusting mechanism 3 is symmetrically arranged inside the mounting frame 2, and the adjusting mechanism 3 includes a bidirectional screw rod 301, both ends of which are rotatably connected to the inner wall of the rectangular groove 202, and a moving frame 302 is symmetrically arranged on the surface of the bidirectional screw rod 301 located inside the rectangular groove 202. Because of the bidirectional screw rod 301, the bidirectional screw rod 301 is controlled to rotate, thereby controlling the two groups of moving frames 302 to move in opposite directions, so that the moving frame 302 can lift the rotating frame 304 to adjust the distance between the two groups of connecting frames 305.

[0020] A rotating frame 304 is rotatably installed on one side of the mobile frame 302, and the two sets of rotating frames 304 are rotatably connected to the connecting frame 305 at one end away from the mobile frame 302. One end of the bidirectional screw 301 passes through the rectangular groove 202 and extends to the outside of the mounting frame 2 where a locking stud 306 is fixedly installed. A locking screw sleeve 307 is provided on the surface of the locking stud 306. By providing the locking screw sleeve 307, the locking screw sleeve 307 is tightened and pressed against the surface of the mounting frame 2, thereby locking and fixing the locking stud 306, ensuring that the bidirectional screw 301 will not rotate at will inside the rectangular groove 202.

[0021] A fixing bar 4 is respectively provided between the two groups of adjustment mechanisms 3, and the fixing bar 4 is fixedly connected to the surface of the connecting frame 305. A turntable 401 is rotatably installed at the central position of the fixing bar 4 on the side away from the connecting frame 305, and the positions of the two groups of turntables 401 correspond. A positioning protrusion 402 is symmetrically fixedly installed on one side of the turntable 401, and an industrial-type winding drum 5 is provided between the two groups of fixing bars 4. Positioning holes 501 are symmetrically provided at both ends of the industrial-type winding drum 5, and the positioning holes 501 correspond to the positions of the positioning protrusions 402 and have the same shape. Because the positioning protrusions 402 and the positioning holes 501 are provided, after the positioning protrusions 402 are inserted into the corresponding positioning holes 501, it is ensured that when the turntable 401 drives the industrial-type winding drum 5 to rotate, there will be no misalignment or deflection between the industrial-type winding drum 5 and the turntable 401.

[0022] The two sides of the inner wall of the mounting frame 2 are symmetrically provided with limiting grooves 201, and the two ends of the fixing bar 4 are symmetrically fixedly provided with limiting rollers 403, and the positions of the limiting rollers 403 and the limiting grooves 201 correspond to each other. Due to the limiting grooves 201 and the limiting rollers 403, when the fixing bar 4 moves inside the mounting frame 2, the limiting rollers 403 are driven to roll inside the corresponding limiting grooves 201, thereby reducing the friction between the two sides of the fixing bar 4 when it moves on the inner wall of the mounting frame 2; A gear 1 404 is fixedly installed on the surface of a group of turntables 401, and a gear 2 405 is meshed with the surface of the gear 1 404. A rotating motor 406 is fixedly installed on one side of the gear 2 405, and the rotating motor 406 is fixedly connected to the fixed bar 4. The rotating motor 406 is provided to control the rotating motor 406 to drive the gear 2 405 to rotate. Under the meshing transmission of the gear 1 404 and the gear 2 405, the turntable 401 is controlled to rotate, and the industrial winding drum 5 between the two groups of turntables 401 is driven to rotate to wind up the leather.

[0023] The top of the bottom frame 1 is located on one side of the mounting frame 1 2 and is fixedly installed with a mounting frame 2 6. Two groups of conveying rollers 7 are fixedly installed inside the mounting frame 2 6. Electric push rods 8 are symmetrically fixedly installed on both sides of the mounting frame 2 6. The tops of the four groups of electric push rods 8 are fixedly installed with a mounting top plate 9. A connecting plate 901 is provided on the top of the mounting top plate 9. A plurality of groups of clamping columns 902 are fixedly installed at the bottom of the connecting plate 901. The bottom ends of the plurality of groups of clamping columns 902 pass through the mounting top plate 9 and are fixedly installed with a clamping frame 903. The clamping frame 903 is located between the mounting top plate 9 and the clamping frame 903. A clamping spring 90 is provided on the surface of the clamping frame 903. 4. Two groups of flattening rollers 905 are rotatably installed at the bottom of the pressing frame 903. Since the pressing spring 904 and the flattening roller 905 are provided, the electric push rod 8 is controlled to telescope and adjust the height of the mounting top plate 9, so that the flattening roller 905 can be close to or away from the conveying roller 7. When the leather is placed on the surface of the conveying roller 7, the flattening roller 905 is pressed against the leather surface, squeezing the pressing spring 904 to deform. Under the rebound action of the pressing spring 904, the flattening roller 905 is pressed against the leather surface, so that the leather can be clamped between the conveying roller 7 and the flattening roller 905 for compression and flattening.

[0024] A concave guide frame 10 is fixedly installed on one side of the mounting frame 2 6 away from the mounting frame 1 2. A bidirectional screw rod 1001 is rotatably installed inside the concave guide frame 10, and limited sliding bars 1002 are symmetrically fixedly installed on both sides of the concave guide frame 10. Guide plates 1003 are slidably installed on the surfaces of both sides of the bidirectional screw rod 1001 and the surfaces of the limited sliding bars 1002. By providing the bidirectional screw rod 1001 and the guide plates 1003, the bidirectional screw rod 1001 is controlled to rotate, so that the guide plates 1003 on both sides of the bidirectional screw rod 1001 slide in opposite directions on the corresponding surfaces of the limited sliding bars 1002, thereby facilitating the adjustment of the distance between the two sets of guide plates 1003 according to the width of the leather; Both ends of the bidirectional screw 1001 pass through the concave guide frame 10 and are fixedly installed with locking studs 1004. The surface of the locking stud 1004 is provided with a locking screw sleeve 1005. Because the locking screw sleeve 1005 is provided, the locking screw sleeve 1005 is tightened to the surface of the concave guide frame 10 to lock and fix the locking stud 1004, thereby locking and fixing the bidirectional screw 1001.

[0025] An operating method of a leather upper forming device, the operating method comprising the following steps: Loosen the locking screw sleeve 1005 and rotate the locking stud 1004 to control the bidirectional screw 1001 to rotate, so that the two groups of guide plates 1003 on the surface of the bidirectional screw 1001 move in opposite directions, adjust the distance between the two groups of guide plates 1003 according to the size of the leather, and then tighten the locking screw sleeve 1005 to lock and fix the bidirectional screw 1001. At the same time, loosen the two groups of locking screw sleeves 307 to control the two groups of locking studs 306 to rotate synchronously, so that the two groups of moving frames 302 on the surface of the locking studs 306 move inside the rectangular groove 202, so that the rotating frame 304 pulls the connecting frame 3 05 Control the distance between the two groups of connecting frames 305, so that the two groups of connecting frames 305 drive the fixing bars 4 to move inside the mounting frame 2, until the turntable 401 between the two groups of fixing bars 4 is placed in the corresponding industrial winding drum 5, and the positioning holes 501 at both ends of the industrial winding drum 5 are correspondingly clamped on the positioning protrusions 402 on the surface of the turntable 401, and then the locking studs 306 are rotated in the opposite direction, so that the two groups of moving frames 302 lift the rotating frames 304 and the two groups of connecting frames 305 are brought closer to each other, until the turntable 401 is clamped on both sides of the industrial winding drum 5, and the locking screw sleeves 307 are tightened to lock and fix the bidirectional screw 301; The four groups of electric push rods 8 are controlled to extend and retract synchronously to drive the installation top plate 9 to move up, so that the flattening roller 905 is away from the conveying roller 7, and the leather is pulled through the two groups of guide plates 1003 and placed between the conveying roller 7 and the flattening roller 905. The electric push rods 8 are controlled to retract to move the installation top plate 9 down until the flattening roller 905 is close to the leather surface. The electric push rods 8 are controlled to continue to retract to compress and deform the compression spring 904 between the installation top plate 9 and the compression frame 903. Under the action, the flattening roller 905 is pressed against the leather surface, so that the wrinkles and unevenness on the leather surface are eliminated when the leather slides between the flattening roller 905 and the conveying roller 7, and the leather is pulled to be wound on the surface of the industrial winding roller 5, and the rotating motor 406 is started to control the gear 2 405 to rotate. Under the meshing action of the gear 2 405 and the gear 1 404, the turntable 401 drives the industrial winding roller 5 to rotate, so as to roll up the leather that has been flattened and formed by the flattening roller 905 and the conveying roller 7.

[0026] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A leather upper forming device, comprising a base frame (1), characterized in that: A mounting frame 1 (2) is fixedly mounted on one side of the top of the base frame (1), an adjustment mechanism (3) is symmetrically arranged inside the mounting frame 1 (2), a fixing bar (4) is respectively arranged between two groups of the adjustment mechanism (3), a work-type winding drum (5) is arranged between the two groups of the fixing bars (4), a mounting frame 2 (6) is fixedly mounted on the top of the base frame (1) and located on one side of the mounting frame 1 (2), two groups of conveying rollers (7) are fixedly mounted inside the mounting frame 2 (6), electric push rods (8) are symmetrically fixedly mounted on both sides of the mounting frame 2 (6), and a mounting top plate (9) is fixedly mounted on the top of the four groups of the electric push rods (8), and a concave guide frame (10) is fixedly mounted on the side of the mounting frame 2 (6) away from the mounting frame 1 (2).

2. A leather upper forming device according to claim 1, characterized in that: The inner wall of the mounting frame 1 (2) is symmetrically provided with a first limiting slide groove (201), the inner wall of the mounting frame 1 (2) is symmetrically provided with a rectangular groove (202), and the inner wall of the rectangular groove (202) is symmetrically provided with a second limiting slide groove (203).

3. A leather upper forming device according to claim 2, characterized in that: The adjustment mechanism (3) comprises a bidirectional screw rod (301), the two ends of which are rotatably connected to the inner wall of the rectangular groove (202), a movable frame (302) is symmetrically provided on the surface of the bidirectional screw rod (301) located inside the rectangular groove (202), and limiting protrusions (303) are symmetrically fixedly installed on both sides of the movable frame (302), and the limiting protrusions (303) are slidably connected to the inside of the limiting sliding groove (203).

4. A leather upper forming device according to claim 3, characterized in that: A rotating frame (304) is rotatably mounted on one side of the mobile frame (302); one end of the two groups of rotating frames (304) away from the mobile frame (302) is rotatably connected to a connecting frame (305); one end of the bidirectional screw rod (301) passes through the rectangular slot (202) and extends to the outside of the mounting frame (2) where a locking stud (306) is fixedly mounted; a locking screw sleeve (307) is provided on the surface of the locking stud (306).

5. The leather upper forming device according to claim 4, characterized in that: The fixing bar (4) is fixedly connected to the surface of the connecting frame (305); a turntable (401) is rotatably mounted at the central position of one side of the fixing bar (4) away from the connecting frame (305), and the positions of the two groups of turntables (401) correspond; a positioning protrusion (402) is symmetrically fixedly mounted on one side of the turntable (401); limiting rollers (403) are symmetrically fixedly mounted at both ends of the fixing bar (4), and the positions of the limiting rollers (403) and the limiting slide groove 1 (201) correspond; a gear 1 (404) is fixedly mounted on the surface of one group of the turntables (401), and a gear 2 (405) is meshed with the surface of the gear 1 (404); a rotating motor (406) is fixedly mounted on one side of the gear 2 (405), and the rotating motor (406) is fixedly connected to the fixing bar (4).

6. The leather upper forming device according to claim 5, characterized in that: Positioning holes (501) are symmetrically provided at both ends of the I-shaped winding drum (5), and the positions of the positioning holes (501) and the positioning protrusions (402) correspond and have the same shape.

7. The leather upper forming device according to claim 1, characterized in that: A connecting plate (901) is provided on the top of the mounting top plate (9), and a plurality of groups of pressing columns (902) are fixedly installed on the bottom of the connecting plate (901). A pressing frame (903) is fixedly installed on the bottom ends of the plurality of groups of pressing columns (902) through the mounting top plate (9). The pressing frame (903) is located between the mounting top plate (9) and the pressing frame (903), and a pressing spring (904) is provided on the surface thereof. Two groups of flattening rollers (905) are rotatably installed on the bottom of the pressing frame (903).

8. The leather upper forming device according to claim 1, characterized in that: A second bidirectional screw rod (1001) is rotatably installed inside the concave guide frame (10), and a limiting slide rod (1002) is symmetrically fixedly installed on both sides of the concave guide frame (10), and guide plates (1003) are slidably installed on the surfaces of both sides of the second bidirectional screw rod (1001) and the surface of the limiting slide rod (1002), and two locking studs (1004) are fixedly installed at both ends of the second bidirectional screw rod (1001) passing through the concave guide frame (10), and a locking screw sleeve (1005) is provided on the surface of the second locking stud rod (1004).

9. An operating method of a leather upper forming device, according to the leather upper forming device according to any one of claims 1 to 8, characterized in that: The operation method comprises the following steps: Loosen the locking screw sleeve 2 (1005) and rotate the locking stud 2 (1004) to control the bidirectional screw 2 (1001) to rotate, so that the two sets of guide plates (1003) on the surface of the bidirectional screw 2 (1001) move in opposite directions, adjust the distance between the two sets of guide plates (1003) according to the size of the leather, and then tighten the locking screw sleeve 2 (1005) to lock and fix the bidirectional screw 2 (1001). At the same time, loosen the two sets of locking screw sleeves 1 (307) to control the two sets of locking studs 1 (306) to rotate synchronously, so that the two sets of moving frames (302) on the surface of the locking studs 1 (306) move inside the rectangular groove (202), so that the rotating frame (304) pulls the connecting frame (305) to control The distance between the two sets of connecting frames (305) is such that the two sets of connecting frames (305) drive the fixing bars (4) to move inside the mounting frame (2) until the turntable (401) between the two sets of fixing bars (4) is placed in the corresponding industrial winding drum (5), and after the positioning holes (501) at both ends of the industrial winding drum (5) are correspondingly clamped in the positioning protrusions (402) on the surface of the turntable (401), the locking stud (306) is rotated in the opposite direction, so that the two sets of moving frames (302) lift the rotating frame (304) so ​​that the two sets of connecting frames (305) are close to each other, until the turntable (401) is clamped on both sides of the industrial winding drum (5), and the locking screw sleeve (307) is tightened to lock and fix the bidirectional screw (301); The four groups of electric push rods (8) are controlled to be extended and retracted synchronously to drive the mounting top plate (9) to move upward, so that the flattening roller (905) is away from the conveying roller (7), and then the leather is pulled through the two groups of guide plates (1003) and placed between the conveying roller (7) and the flattening roller (905). Then, the electric push rods (8) are controlled to be retracted to move the mounting top plate (9) downward until the flattening roller (905) is closely attached to the leather surface. Then, the electric push rods (8) are controlled to continue to be retracted to compress and deform the compression spring (904) between the mounting top plate (9) and the compression frame (903), and then the compression spring (904) is retracted. The flattening roller (905) is pressed against the leather surface under the rebound effect, so that wrinkles and unevenness on the leather surface are eliminated when the leather slides between the flattening roller (905) and the conveying roller (7), and the leather is pulled to be rolled on the surface of the industrial winding roller (5). The rotating motor (406) is started to control the second gear (405) to rotate, and the turntable (401) drives the industrial winding roller (5) to rotate under the meshing effect of the second gear (405) and the first gear (404), so as to roll up the leather that has been flattened and formed by the flattening roller (905) and the conveying roller (7).

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