Stretching device for artificial leather production

Abstract

The utility model relates to the technical field of artificial leather processing, in particular to a stretching device for artificial leather production, which comprises a lifting plate, a stretching component is arranged at the top of the lifting plate, a shearing component is arranged at the top of the stretching component, and a jacking component is arranged at the bottom of the lifting plate. A first telescopic shaft pushes an elastic material on a movable plate to move downwards so as to extrude artificial leather, the elastic material plays a role in protecting the artificial leather, then a first motor drives a two-way threaded lead screw to rotate, the two-way threaded lead screw drives two clamping structures to move in the opposite directions along a guide rod, and then the artificial leather is clamped. The artificial leather is tensioned through the two clamping structures, and the situation that cutting is irregular during shearing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial leather processing, in particular to a stretching device for artificial leather production. Background Art

[0002] Artificial leather is a kind of artificial synthetic material similar to leather made of synthetic fiber or natural fiber material. Its production process is to coat and impregnate hardening materials in the base fabric to achieve a structure and feel similar to natural leather. It is made by coating synthetic resin and various plastic additives with fabric as the base. There are mainly three types of artificial leather: PVC artificial leather, PU artificial leather and PU synthetic leather. Fabric is often used as the base, and a layer of resin mixture is coated or covered on it. It is then heated to plasticize and rolled flat or embossed to obtain the product. It is similar to natural leather and has the characteristics of softness and wear resistance. Depending on the type of covering, there are artificial leather for shoes, artificial leather for luggage, etc.

[0003] Existing artificial leather needs to be cut and rolled during production. During the rolling process, it is difficult to fully stretch and unfold the artificial leather, which easily leads to wrinkles on the artificial leather, thereby affecting the flattening effect and ultimately causing uneven cutting during shearing. Utility Model Content

[0004] In view of the fact that the above-mentioned existing artificial leather needs to be cut and rolled during production, it is difficult to achieve complete tension and expansion during the rolling process, which easily leads to wrinkles in the artificial leather, thereby affecting the flattening effect and ultimately causing uneven cutting during shearing. The present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a stretching device for artificial leather production, which aims to solve the problem that the existing artificial leather needs to be cut and rolled during production, and the artificial leather is difficult to be completely stretched and unfolded during the rolling process, which easily leads to wrinkling of the artificial leather, thereby affecting the flattening effect and ultimately causing uneven cutting during shearing.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a stretching device for artificial leather production, comprising a lifting plate, a stretching assembly is provided on the top of the lifting plate, a shearing assembly is provided on the top of the stretching assembly, and a jacking assembly is provided on the bottom of the lifting plate;

[0007] The stretching assembly includes a U-shaped block, which is symmetrically arranged on the top of the lifting plate. A motor is provided on one side of one of the U-shaped blocks. The output end of the motor is connected to a bidirectional threaded screw. The threads at both ends of the bidirectional threaded screw are in opposite directions. A bevel gear is provided on the bidirectional threaded screw. A clamping structure is symmetrically provided on the bidirectional threaded screw. A guide rod is provided on the other U-shaped block. The guide rod is slidably connected to the clamping structure.

[0008] As a preferred solution of the stretching device for artificial leather production described in the present invention, one side of the U-shaped block is symmetrically provided with a through groove, and the inner side of the U-shaped block is symmetrically provided with a sliding groove.

[0009] As a preferred solution of the stretching device for artificial leather production described in the utility model, the clamping structure includes an L-shaped slider 1, a motor 2 is provided on one side of the L-shaped slider 1, the output end of the motor 2 is connected to the rotating roller, the top of the L-shaped slider 1 is provided with a U-shaped plate, the top of the U-shaped plate is provided with an electric push rod, the output end of the electric push rod is connected to the telescopic shaft 1, the bottom end of the telescopic shaft 1 is provided with a movable plate, the bottom of the movable plate is provided with elastic material, an L-shaped slider 2 is provided on one side of the rotating roller, and a guide shaft is symmetrically provided on the top of the movable plate, and the guide shaft passes through the U-shaped plate.

[0010] As a preferred solution of the stretching device for artificial leather production described in the utility model, wherein: the L-shaped slider 1 is slidably connected to the through groove 1, the bottom extension part of the L-shaped slider 1 passes through the slide groove 1 and is threadedly connected to the bidirectional threaded screw, the L-shaped slider 2 is slidably connected to the through groove 1, and the bottom extension part of the L-shaped slider 2 passes through the slide groove 1 and is slidably connected to the guide rod.

[0011] As a preferred solution of the stretching device for artificial leather production described in the present invention, wherein: the shearing assembly includes a U-shaped mounting plate, the U-shaped mounting plate is arranged on the top of the L-shaped slider, the U-shaped mounting plate is rotatably connected to the rotating shaft one, the bottom end of the rotating shaft one is provided with a bevel gear two, the bevel gear two is correspondingly meshed with the bevel gear one, the top of the rotating shaft one is provided with a gear set one, one side of the gear set one is provided with a rotating shaft two, the rotating shaft two is provided with a cam, the U-shaped mounting plate is slidably connected to the push shaft, the bottom end of the push shaft is provided with a shearing knife, and a telescopic shaft two is symmetrically provided between the U-shaped mounting plate and the shearing knife, and the outer surface of the telescopic shaft two is sleeved with a spring.

[0012] As a preferred solution of the stretching device for artificial leather production described in the utility model, wherein: a fixing plate is symmetrically provided on the top of the U-shaped mounting plate, and the fixing plate is rotatably connected to the second rotating shaft.

[0013] As a preferred solution of the stretching device for artificial leather production described in the utility model, wherein: the jacking assembly includes a base, the base is arranged at the bottom of the lifting plate, the base is rotatably connected to the rotating shaft 1, one end of the rotating shaft 1 is provided with a turntable, the other end of the rotating shaft 1 is provided with a gear group 2, the two sides of the gear group 2 are respectively provided with rotating shafts 2, one end of the rotating shaft 2 is provided with a gear group 3, the top of the gear group 3 is provided with a threaded rod, the threaded rod is threadedly connected to a square cylinder, and the square cylinder is fixedly connected to the lifting plate.

[0014] As a preferred solution of the stretching device for artificial leather production described in the utility model, wherein: two slide grooves are symmetrically opened on the base, the two slide grooves are slidably connected to the square cylinder, a plurality of empty grooves are opened inside the base, the first rotating shaft and the second rotating shaft are respectively arranged in the empty grooves and are rotatably connected to the base.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model drives the telescopic shaft 1 downward by an electric push rod, and the telescopic shaft 1 pushes the elastic material on the movable plate downward to squeeze the artificial leather. The elastic material protects the artificial leather. Then, the bidirectional threaded screw is driven to rotate by the motor 1, and the bidirectional threaded screw drives the two clamping structures to move in opposite directions along the guide rod. The artificial leather is tightened by the two clamping structures to avoid uneven cutting during shearing.

[0017] 2. The utility model drives bevel gear 1 to rotate through a bidirectional threaded screw, and bevel gear 1 drives shaft 1 to rotate through bevel gear 2. Shaft 1 drives a cam on shaft 2 to rotate through gear set 1. The cam intermittently pushes the push shaft downward, and the push shaft pushes the shearing knife to move downward along the telescopic shaft 2, thereby shearing the artificial leather. The shearing knife is then driven back to its initial position by spring tension, and the artificial leather is sheared through the linkage of the stretching assembly, thereby avoiding uneven cutting caused by manual shearing.

[0018] 3. The utility model drives the rotating shaft 1 to rotate through the turntable, and the rotating shaft 1 drives the two rotating shafts 2 to rotate through the gear set 2, and the rotating shaft 2 drives the threaded rod to rotate through the gear set 3, and the threaded rod drives the square column to move upward along the slide groove 2. The stretching assembly on the lifting plate is lifted and lowered through the two square columns, which is suitable for operators of different heights, greatly improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a stretching device for artificial leather production.

[0021] Figure 2 The utility model is a schematic diagram of the structure of a stretching component of a stretching device for artificial leather production.

[0022] Figure 3 This is a three-dimensional structural schematic diagram of a clamping structure of a stretching device for artificial leather production according to the present invention.

[0023] Figure 4 The utility model is a schematic diagram of the shear component structure of a stretching device for artificial leather production.

[0024] Figure 5 This is a three-dimensional structural schematic diagram of the driving structure of a stretching device for artificial leather production according to the present invention.

[0025] Figure 6 The utility model is a schematic cross-sectional view of a stretching device for producing artificial leather.

[0026] Description of reference numerals:

[0027] 1. Lifting plate; 2. Stretching assembly; 21. U-shaped block; 22. Motor 1; 23. Bidirectional screw; 24. Bevel gear 1; 25. Clamping structure; 251. L-shaped slider 1; 252. Motor 2; 253. Rotating roller; 254. U-shaped plate; 255. Electric push rod; 256. Telescopic shaft 1; 257. Movable plate; 258. Elastic material; 259. L-shaped slider 2; 2510. Guide shaft; 26. Guide rod; 27. Through slot 1; 28. Slide slot 1; 3. Shearing assembly; 31. U-shaped mounting plate; 32. Rotating shaft 1; 33. Bevel gear 2; 34. Gear set 1; 35. Rotating shaft 2; 36. Cam; 37. Push shaft; 38. Shear knife; 39. Telescopic shaft 2; 310. Spring; 311. Fixed plate; 312. Support block; 4. Lifting assembly; 41. Base; 42. Rotating shaft 1; 43. Turntable; 44. Gear set 2; 45. Rotating shaft 2; 46. Gear set 3; 47. Threaded rod; 48. Square cylinder; 49. Slide groove 2; 410. Empty groove. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0029] Reference Figure 1-3 , which is the first embodiment of the present utility model, provides a stretching device for artificial leather production, which includes a lifting plate 1, a stretching assembly 2 is provided on the top of the lifting plate 1, a shearing assembly 3 is provided on the top of the stretching assembly 2, and a lifting assembly 4 is provided at the bottom of the lifting plate 1;

[0030] The stretching assembly 2 includes a U-shaped block 21, which is symmetrically arranged on the top of the lifting plate 1. A motor 22 is provided on one side of one U-shaped block 21. The output end of the motor 22 is connected to a bidirectional threaded screw 23. The threads at both ends of the bidirectional threaded screw 23 are in opposite directions. A bevel gear 24 is provided on the bidirectional threaded screw 23. A clamping structure 25 is symmetrically provided on the bidirectional threaded screw 23. A guide rod 26 is provided on the other U-shaped block 21. The guide rod 26 is slidably connected to the clamping structure 25.

[0031] The motor 1 22 drives the bidirectional threaded screw 23 to rotate, and the bidirectional threaded screw 23 drives the two clamping structures 25 to move in opposite directions along the guide rod 26. The two clamping structures 25 tighten the artificial leather to facilitate subsequent shearing.

[0032] A through groove 27 is symmetrically opened on one side of the U-shaped block 21, and a sliding groove 28 is symmetrically opened on the inner side of the U-shaped block 21. The through groove 27 and the sliding groove 28 are interconnected to facilitate the sliding of the L-shaped slider 1 251 and the L-shaped slider 2 25.

[0033] The clamping structure 25 includes an L-shaped slider 251, a motor 252 is provided on one side of the L-shaped slider 251, and the output end of the motor 252 is connected to the rotating roller 253. A U-shaped plate 254 is provided on the top of the L-shaped slider 251, and an electric push rod 255 is provided on the top of the U-shaped plate 254. The output end of the electric push rod 255 is connected to the telescopic shaft 1 256. A movable plate 257 is provided at the bottom of the telescopic shaft 1 256, and an elastic material 258 is provided at the bottom of the movable plate 257. An L-shaped slider 259 is provided on one side of the rotating roller 253, and a guide shaft 2510 is symmetrically provided on the top of the movable plate 257. The guide shaft 2510 penetrates the U-shaped plate 254 and drives the telescopic shaft 1 256 to move downward through the electric push rod 255. The telescopic shaft 1 256 pushes the elastic material 258 on the movable plate 257 to move downward, thereby squeezing the artificial leather. The elastic material 258 protects the artificial leather.

[0034] The L-shaped slider 1 251 is slidably connected to the through groove 1 27, the bottom extension of the L-shaped slider 1 251 passes through the slide groove 1 28 and is threadedly connected to the bidirectional threaded screw 23, the L-shaped slider 259 is slidably connected to the through groove 1 27, the bottom extension of the L-shaped slider 259 passes through the slide groove 1 28 and is slidably connected to the guide rod 26, and the L-shaped slider 1 251 and the L-shaped slider 2 25 are guided by the through groove 1 27 and the slide groove 1 28 respectively.

[0035] During use, the staff passes the artificial leather through the stretching device, and the artificial leather is placed between the rotating roller 253 and the elastic material 258. The motor 252 is started, and the motor 252 drives the rotating roller 253 to rotate, and the rotating roller 253 drives the artificial leather to move, thereby realizing the winding operation of the artificial leather. When shearing is required, the motor 252 is turned off, and then the electric push rod 255 is started. The electric push rod 255 drives the telescopic shaft 1 256 to move downward, and the telescopic shaft 1 256 pushes the movable plate 257 to move downward along the guide shaft 2510. The movable plate 257 drives the elastic material 258 to move downward and squeeze the artificial leather. The elastic material 258 protects the artificial leather. Then start the motor 1 22, and the motor 1 22 drives the bidirectional threaded screw 23 to rotate. The bidirectional threaded screw 23 drives the two clamping structures 25 to move in opposite directions along the guide rod 26. The artificial leather is tightened and flattened by the two clamping structures 25 to avoid uneven cutting during shearing. Example 2

[0036] Reference Figure 1-4 , which is the second embodiment of the present utility model. This embodiment is different from the first embodiment in that: the shearing assembly 3 includes a U-shaped mounting plate 31, the U-shaped mounting plate 31 is arranged on the top of the L-shaped slider 251, the U-shaped mounting plate 31 is rotatably connected to the rotating shaft 32, the bottom end of the rotating shaft 32 is provided with a bevel gear 23, the bevel gear 233 is correspondingly meshed with the bevel gear 24, the top of the rotating shaft 32 is provided with a gear set 1, a rotating shaft 235 is provided on one side of the gear set 134, a cam 36 is provided on the rotating shaft 235, the U-shaped mounting plate 31 is slidably connected to the push shaft 37, the bottom end of the push shaft 37 is provided with a shearing knife 38, and a telescopic shaft 239 is symmetrically provided between the U-shaped mounting plate 31 and the shearing knife 38, and the outer surface of the telescopic shaft 239 is sleeved with a spring 310.

[0037] The bevel gear 1 24 is driven to rotate by the bidirectional threaded screw 23, and the bevel gear 1 24 drives the rotating shaft 1 32 to rotate through the bevel gear 2 33. The rotating shaft 1 32 drives the cam 36 on the rotating shaft 2 35 to rotate through the gear set 1 34. The cam 36 intermittently pushes the push shaft 37 downward, and the push shaft 37 pushes the shearing knife 38 to move downward along the telescopic shaft 2 39, thereby shearing the artificial leather. The shearing knife 38 is then driven back to the initial position by the tension of the spring 310, and the artificial leather is sheared by the linkage of the stretching component 2 without manual shearing.

[0038] A fixing plate 311 is symmetrically provided on the top of the U-shaped mounting plate 31 . The fixing plate 311 is rotatably connected to the second rotating shaft 35 , and the fixing plate 311 assists the rotation of the second rotating shaft 35 .

[0039] During use, the bidirectional threaded screw 23 drives the bevel gear 1 24 to rotate, and the bevel gear 1 24 drives the rotating shaft 1 32 to rotate through the bevel gear 2 33, and the rotating shaft 1 32 drives the cam 36 on the rotating shaft 2 35 to rotate through the gear set 1 34, and the cam 36 intermittently pushes the push shaft 37 downward, and the push shaft 37 pushes the shearing knife 38 to move downward along the telescopic shaft 2 39, thereby shearing the artificial leather. The downward movement of the shearing knife 38 stretches the spring 310, causing the spring 310 to generate tension. The tension of the spring 310 drives the shearing knife 38 to return to the initial position, and the artificial leather is sheared through the linkage of the stretching component 2, avoiding the occurrence of uneven cutting caused by manual shearing.

[0040] The remaining structures are the same as those of Example 1. Example 3

[0041] Reference Figure 1-6 , which is the third embodiment of the present utility model. This embodiment is different from the second embodiment in that: the jacking assembly 4 includes a base 41, which is arranged at the bottom of the lifting plate 1, and the base 41 is rotatably connected to the rotating shaft 1 42. A turntable 43 is provided at one end of the rotating shaft 1 42, and a gear set 2 44 is provided at the other end of the rotating shaft 1 42. Rotating shafts 2 45 are respectively provided on both sides of the gear set 2 44, and a gear set 3 46 is provided at one end of the rotating shaft 2 45. A threaded rod 47 is provided at the top of the gear set 3 46, and the threaded rod 47 is threadedly connected to a square column 48, and the square column 48 is fixedly connected to the lifting plate 1.

[0042] The turntable 43 drives the rotating shaft 1 42 to rotate, the rotating shaft 1 42 drives the two rotating shafts 2 45 to rotate through the gear set 2 44, the rotating shaft 2 45 drives the threaded rod 47 to rotate through the gear set 3 46, and the threaded rod 47 drives the square column 48 to move upward along the slide groove 2 49. The stretching component 2 on the lifting plate 1 is lifted and lowered by the two square columns 48, so that the height of the device can be adjusted easily.

[0043] A second slide groove 49 is symmetrically provided on the base 41, and the second slide groove 49 is slidably connected to the square column 48. A plurality of empty grooves 410 are provided inside the base 41. The first rotating shaft 42 and the second rotating shaft 45 are respectively arranged in the empty grooves 410 and are rotatably connected to the base 41. The square column 48 is guided by the second slide groove 49, and a limiting structure is provided between the second slide groove 49 and the square column 48.

[0044] During use, the staff rotates the turntable 43, and the turntable 43 drives the rotating shaft 1 42 to rotate. The rotating shaft 1 42 drives the two rotating shafts 2 45 to rotate through the gear set 2 44. The rotating shaft 2 45 drives the threaded rod 47 to rotate through the gear set 3 46. The threaded rod 47 drives the square column 48 to move upward along the slide groove 2 49. The stretching component 2 on the lifting plate 1 is lifted and lowered through the two square columns 48, which can be suitable for operators of different heights, greatly improving the applicability of the device.

[0045] The remaining structures are the same as those of Example 2.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A stretching device for artificial leather production, comprising a lifting plate (1), characterized in that: A stretching assembly (2) is provided on the top of the lifting plate (1), a shearing assembly (3) is provided on the top of the stretching assembly (2), and a lifting assembly (4) is provided on the bottom of the lifting plate (1); The stretching assembly (2) includes a U-shaped block (21), and the U-shaped block (21) is symmetrically arranged on the top of the lifting plate (1). A motor (22) is provided on one side of the U-shaped block (21), and the output end of the motor (22) is connected to a bidirectional threaded screw (23) in a transmission manner. The two ends of the bidirectional threaded screw (23) have opposite thread directions. A bevel gear (24) is provided on the bidirectional threaded screw (23), and a clamping structure (25) is symmetrically provided on the bidirectional threaded screw (23). A guide rod (26) is provided on the other U-shaped block (21), and the guide rod (26) is slidably connected to the clamping structure (25).

2. The stretching device for artificial leather production according to claim 1, characterized in that: A through groove (27) is symmetrically provided on one side of the U-shaped block (21), and a sliding groove (28) is symmetrically provided on the inner side of the U-shaped block (21).

3. The stretching device for artificial leather production according to claim 2, characterized in that: The clamping structure (25) comprises an L-shaped slider (251), a motor (252) is provided on one side of the L-shaped slider (251), an output end of the motor (252) is connected to a rotating roller (253), a U-shaped plate (254) is provided on the top of the L-shaped slider (251), an electric push rod (255) is provided on the top of the U-shaped plate (254), an output end of the electric push rod (255) is connected to a telescopic shaft (256), a movable plate (257) is provided on the bottom of the telescopic shaft (256), an elastic material (258) is provided on the bottom of the movable plate (257), an L-shaped slider (259) is provided on one side of the rotating roller (253), a guide shaft (2510) is symmetrically provided on the top of the movable plate (257), and the guide shaft (2510) passes through the U-shaped plate (254).

4. The stretching device for artificial leather production according to claim 3, characterized in that: The L-shaped slider 1 (251) is slidably connected to the through groove 1 (27), and the bottom extension portion of the L-shaped slider 1 (251) passes through the slide groove 1 (28) and is threadedly connected to the bidirectional threaded screw (23). The L-shaped slider 2 (259) is slidably connected to the through groove 1 (27), and the bottom extension portion of the L-shaped slider 2 (259) passes through the slide groove 1 (28) and is slidably connected to the guide rod (26).

5. The stretching device for artificial leather production according to claim 4, characterized in that: The shearing assembly (3) includes a U-shaped mounting plate (31), the U-shaped mounting plate (31) is arranged on the top of the L-shaped slider (251), the U-shaped mounting plate (31) is rotatably connected to the rotating shaft (32), the bottom end of the rotating shaft (32) is provided with a bevel gear (33), the bevel gear (33) is correspondingly engaged with the bevel gear (24), the top of the rotating shaft (32) is provided with a gear set (34), one side of the gear set (34) is provided with a rotating shaft (35), the rotating shaft (35) is provided with a cam (36), the U-shaped mounting plate (31) is slidably connected to the push shaft (37), the bottom end of the push shaft (37) is provided with a shearing knife (38), and a telescopic shaft (39) is symmetrically provided between the U-shaped mounting plate (31) and the shearing knife (38), and the outer surface of the telescopic shaft (39) is provided with a spring (310).

6. The stretching device for artificial leather production according to claim 5, characterized in that: A fixing plate (311) is symmetrically provided on the top of the U-shaped mounting plate (31), and the fixing plate (311) is rotatably connected to the second rotating shaft (35).

7. The stretching device for artificial leather production according to claim 6, characterized in that: The lifting assembly (4) includes a base (41), the base (41) is arranged at the bottom of the lifting plate (1), the base (41) is rotatably connected to a rotating shaft (42), one end of the rotating shaft (42) is provided with a turntable (43), the other end of the rotating shaft (42) is provided with a gear set (44), both sides of the gear set (44) are provided with a rotating shaft (45), one end of the rotating shaft (45) is provided with a gear set (46), the top of the gear set (46) is provided with a threaded rod (47), the threaded rod (47) is threadedly connected to a square column (48), and the square column (48) is fixedly connected to the lifting plate (1).

8. The stretching device for artificial leather production according to claim 7, characterized in that: The base (41) is symmetrically provided with a second slide groove (49), and the second slide groove (49) is slidably connected to the square column (48). A plurality of empty grooves (410) are provided inside the base (41), and the first rotating shaft (42) and the second rotating shaft (45) are respectively provided in the empty grooves (410) and are rotatably connected to the base (41).

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