Preparation process and production equipment of waterborne polyurethane sports shoe leather base

Abstract

The invention relates to a preparation process and production equipment of a waterborne polyurethane sports shoe leather base, and belongs to the technical field of microfiber leather preparation of multi-layer base cloth, in the preparation process of the waterborne polyurethane sports shoe leather base, multiple layers of base cloth are pressed by using a plurality of belt pressing wheel sets which can be arranged in an overlapped mode, and the multiple layers of base cloth are pressed by using a plurality of belt pressing wheel sets; the multiple layers of base cloth are arranged in the multiple overlapped belt pressing wheel sets in an S shape in a winding mode. Each belt pressing wheel set comprises a swinging base cloth stretching assembly capable of stretching the surface of the multiple layers of base cloth from inside to outside, a dynamic needling assembly capable of adjusting the distance between the annular belts according to the actual requirement so as to adjust the needling distance and a base cloth deviation rectifying assembly. The base cloth deviation rectifying assembly can adjust different conveying speeds when the conveying speeds of different cross sections of the multiple layers of base cloth are different, different numbers of belt pressing wheel sets can be selected according to actual needs, and the multiple layers of base cloth are arranged and wound in an S shape in a matched mode, so that the front face and the back face of the multiple layers of base cloth can be stretched and needled.

Description

Technical Field

[0001] The present invention relates to the technical field of preparing ultra-fine leather from multi-layer base fabrics, and particularly relates to a preparation process and production equipment for an aqueous polyurethane sports shoe leather base Background Art

[0002] Compared with solvent-based ultra-fine base fabrics, the preparation method of aqueous ultra-fine base fabrics is more environmentally friendly. Aqueous polyurethane uses water as a dispersion medium, and there is no volatilization of solvents during the production process, which poses no health hazards to the operators in the production workshop. Therefore, aqueous polyurethane is increasingly applied to the synthetic leather field. Existing preparation processes and equipment for aqueous polyurethane synthetic leather, such as the preparation device and process for aqueous bio-based synthetic leather disclosed in Patent Document 1 (CN117681537A), include a main composite layer and a secondary composite layer that are pressed together, and adhesive is injected between the main composite layer and the secondary composite layer through a main glue injection roller and a secondary glue injection roller. Its action is carried out through a synchronous glue injection mechanism, and several telescopic glue injection bodies perform intermittent telescopic actions by being rotated by a coaxial synchronous driver, which realizes convenient glue injection. However, it does not consider the possible misalignment and wrinkles that may occur between the mutually pressed main composite layer and secondary composite layer, and the skew that may occur during transportation, thus affecting the quality and processing of the subsequent formed synthetic leather. Another example is Patent Document 2 (CN118876566A) which discloses a laminating rolling press that can laminate and roll multiple layers of films or layered materials. It is provided with several conveyor belts between a hot pressing roller and a cooling roller, and two pressing rollers are also provided. By driving the pressing rollers to rotate, the composite materials are compacted. In addition, several acupuncture parts are provided on the pressing rollers, and the acupuncture parts penetrate into the materials through the gaps formed between adjacent conveyor belts, improving the bonding effect. However, this laminating rolling press also has the situation where it is unable to correct or rectify the skew, misalignment, or wrinkles that may occur between the mutually pressed material layers, which also affects the quality and processing of the subsequent formed synthetic leather.

[0003] In summary, in the prior art for the preparation of superfine fiber leather with a multi-layer base fabric, although the preparation process and equipment for waterborne polyurethane synthetic leather already exist, most of the focus is on how to better perform adhesive treatment on the composite layer between two or more layers. The problems of wrinkles and skewing that occur during the transportation or transfer of the composite layer between two or more layers are not considered. In addition, during the needling operation, affected by the size of the conveyor belt, the needling parts can only penetrate through the gap between the conveyor belts, resulting in insufficient needling density and also unable to flexibly adjust the needling density. Therefore, the present application provides a preparation process and production equipment for waterborne polyurethane sports shoe leather base fabric that can press two or more composite layers, avoid wrinkles in the outer layer during multi-layer lamination, avoid tilting during the transmission or winding of the multi-layer composite body, and can flexibly control the needling density. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a preparation process for waterborne polyurethane sports shoe base fabric, which includes the following steps: a. Prepare a multi-layer base fabric: Take a waterborne polyurethane screen as the middle layer, ultra-fine fiber non-woven fabric as the upper and lower surface layers, apply glue between the middle layer and the upper surface layer, apply glue between the middle layer and the lower surface layer, initially press them together by a pressing roller to form a multi-layer base fabric, and then form a processed multi-layer base fabric after pressing and needling by a base fabric pressing device; b. Impregnate with waterborne polyurethane slurry: Immerse the processed multi-layer base fabric in the waterborne polyurethane slurry. The components of the waterborne polyurethane slurry include waterborne polyurethane, wetting agent, thickening agent, leveling agent, defoaming agent and deionized water, with a solid content of 20%-40%, a room temperature viscosity of 2000 mPa·s to 2500 mPa·s, and a liquor pick-up rate of 100%-200%; after curing, waterborne polyurethane sports shoe leather base fabric is obtained.

[0005] Preferably, the wetting agent is polyether-modified silicone, and the addition amount is 0.1%-2% of the total amount of the waterborne polyurethane slurry; the thickening agent is hydrophobic-modified polyurethane, and the addition amount is 0.2%-1.5% of the total amount of the waterborne polyurethane slurry; the leveling agent is fluorocarbon-modified acrylate, and the addition amount is 0.1%-1% of the total amount of the waterborne polyurethane slurry; the defoaming agent is polyether-modified silicone oil, and the addition amount is 0.1%-0.8% of the total amount of the waterborne polyurethane slurry.

[0006] Preferably, it further includes a production device for an aqueous polyurethane sports shoe leather base. The production device includes a base cloth pressing device. The base cloth pressing device includes a base and a plurality of belt pressing wheel groups arranged in layers on the base. The belt pressing wheel group includes a first heat preservation pressing roller group, a second heat preservation pressing roller group, a pressing belt group, a first support plate, a second support plate, a dynamic needle punching assembly, and a base cloth deviation rectifying assembly. The pressing belt group is wound around the first heat preservation pressing roller group and the second heat preservation pressing roller group. The first support plate and the second support plate are arranged on both sides of the pressing belt group. The dynamic needle punching assembly and the base cloth deviation rectifying assembly are movably arranged between the first support plate and the second support plate. The pressing belt group is composed of a plurality of annular belts. The dynamic needle punching assembly includes two first swing rods and another pair of base cloth treatment roller groups. The middle parts of the two first swing rods are respectively rotatably arranged in the first support plate and the second support plate. One of the other pair of base cloth treatment roller groups is rotatably arranged at one end of the two first swing rods, and the other one of the other pair of base cloth treatment roller groups is rotatably arranged at the other end of the two first swing rods. The base cloth deviation rectifying assembly is slidably arranged on the first support plate and the second support plate. The base cloth deviation rectifying assembly includes two vertical sliders and another pair of base cloth treatment roller groups. The two vertical sliders are respectively vertically slidably arranged on the first support plate and the second support plate. Another base cloth treatment roller group is horizontally slidably arranged inside the two vertical sliders. Telescopic needles capable of sliding along the axial direction of the base cloth treatment roller groups are arranged in all the base cloth treatment roller groups. The telescopic needles in the base cloth deviation rectifying assembly can be inserted into the annular belt to drive the closely attached annular belt to unfold. The telescopic needles of one base cloth treatment roller group in the dynamic needle punching assembly can be inserted into the annular belt to drive the closely attached annular belt to unfold, and the telescopic needles of the other base cloth treatment roller group can pass through the gap between the annular belts and be inserted into multiple layers of base cloth.

[0007] Preferably, the base cloth pressing device further includes a swinging base cloth stretching assembly. The swinging base cloth stretching assembly, the dynamic needle punching assembly, and the base cloth deviation rectifying assembly are movably arranged between the first support plate and the second support plate. The swinging base cloth stretching assembly includes a pair of base cloth treatment roller groups and two second swing rods. The middle parts of the two second swing rods are respectively rotatably arranged in the first support plate and the second support plate. One of the pair of base cloth treatment roller groups is rotatably arranged at one end of the two second swing rods, and the other one of the pair of base cloth treatment roller groups is rotatably arranged at the other end of the two second swing rods. The telescopic needles in the swinging base cloth stretching assembly and the base cloth deviation rectifying assembly can be inserted into the annular belt to drive the closely attached annular belt to unfold.

[0008] Preferably, the base fabric pressing device further includes two first rotary drive sources, two second rotary drive sources, two third rotary drive sources, and two fourth rotary drive sources. One end of each of the two swing rods two is respectively provided with a third rotary drive source and a fourth rotary drive source. One of the pair of base fabric processing roller groups is rotatably arranged in the two third rotary drive sources, and the other of the pair of base fabric processing roller groups is rotatably arranged in the two fourth rotary drive sources. One end of each of the two swing rods one is respectively provided with a first rotary drive source and a second rotary drive source. One of the other pair of base fabric processing roller groups is rotatably arranged in the two first rotary drive sources, and the other of the other pair of base fabric processing roller groups is rotatably arranged in the two second rotary drive sources; the base fabric deviation rectifying assembly further includes two fifth rotary drive sources, and the fifth rotary drive sources are horizontally slidably arranged in the two vertical sliders, and one base fabric processing roller group is arranged in the two fifth rotary drive sources.

[0009] Preferably, the first heat preservation pressing roller group and the second heat preservation pressing roller group both include a roller inner core and a plurality of belt clutch outer guide sleeves movably arranged outside the roller inner core. The belt clutch outer guide sleeves are connected to the roller inner core through a one-way locking assembly. A plurality of intermediate convex rings are arranged on the outer periphery of the roller inner core. A through hole one is arranged on the inner side of the belt clutch outer guide sleeve, and a belt receiving groove is arranged on the outer side. Accommodating grooves for cooperating with the intermediate convex rings are arranged at both ends of the through hole one. The one-way locking assembly includes a swing block rotatably arranged in the belt clutch outer guide sleeve. A triangular receiving groove hole is arranged in the roller inner core. When the belt clutch outer guide sleeve is engaged with the roller inner core, the swing block is driven by a biasing spring to be inserted into the triangular receiving groove hole.

[0010] Preferably, the base fabric processing roller group includes an outer roller cover, an inner telescopic drive rod group, and the telescopic needles. A plurality of protruding hole grooves are arranged on the outer roller cover. The inner telescopic drive rod group includes an inner telescopic fork rod group and a plurality of synchronous telescopic drive assemblies. The inner telescopic drive rod group includes an inner rod, a plurality of first scissor rods, four second scissor rods, a plurality of transverse connecting rods, and a plurality of sliding sleeves one. A middle limiting ring is arranged in the middle of the inner rod. The plurality of first scissor rods, four second scissor rods, a plurality of transverse connecting rods, and a plurality of sliding sleeves one form a scissor mechanism. The plurality of transverse connecting rods are connected to the plurality of synchronous telescopic drive assemblies. Telescopic needles are arranged on both the transverse connecting rods and the synchronous telescopic drive assemblies, and the synchronous telescopic drive assemblies are driven by the movement of the scissor mechanism.

[0011] Preferably, two hinge shafts II are respectively arranged at two ends of the middle limiting ring, and two hinge shafts I are respectively arranged at two ends of the first sliding sleeve. The plurality of first sliding sleeves are slidably sleeved on the inner rod. The number of the first sliding sleeves on the left side of the middle limiting ring is M, and the number of the first sliding sleeves on the right side of the middle limiting ring is K. Both M and K are natural numbers greater than or equal to 1. Along the direction of the middle limiting ring towards the left side of the inner rod, the plurality of first sliding sleeves are successively the first left sliding sleeve I, the second left sliding sleeve I,..., the Mth left sliding sleeve I; along the direction of the middle limiting ring towards the right side of the inner rod, the plurality of first sliding sleeves are successively the first right sliding sleeve I, the second right sliding sleeve I,..., the Kth right sliding sleeve I; the hinge shafts I and II close to the front side of the inner rod are respectively the front hinge shaft I and the front hinge shaft II, and the hinge shafts I and II close to the rear side of the inner rod are respectively the rear hinge shaft I and the rear hinge shaft II. The number of the transverse connecting rods is 2M + 2K, and the telescopic needles are arranged on all the transverse connecting rods. The first scissor rods hinged to the front hinge shaft I of the first left sliding sleeve I, the second left sliding sleeve I,..., the (M - 1)th left sliding sleeve I are respectively the first left front scissor rod I, the second left front scissor rod I,..., the (M - 1)th left front scissor rod I; the first scissor rods hinged to the rear hinge shaft I of the first left sliding sleeve I, the second left sliding sleeve I,..., the (M - 1)th left sliding sleeve I are respectively the first left rear scissor rod I, the second left rear scissor rod I,..., the (M - 1)th left rear scissor rod I; the first scissor rods hinged to the front hinge shaft I of the first right sliding sleeve I, the second right sliding sleeve I,..., the (K - 1)th right sliding sleeve I are respectively the first right front scissor rod I, the second right front scissor rod I,..., the (K - 1)th right front scissor rod I; the first scissor rods hinged to the rear hinge shaft I of the first right sliding sleeve I, the second right sliding sleeve I,..., the (K - 1)th right sliding sleeve I are respectively the first right rear scissor rod I, the second right rear scissor rod I,..., the (K - 1)th right rear scissor rod I; the first scissor rod hinged to the front hinge shaft II is the middle front scissor rod I, and the first scissor rod hinged to the rear hinge shaft II is the middle rear scissor rod I. Along the direction of the middle limiting ring towards the right side of the inner rod, the transverse connecting rods on the upper side of the inner rod are successively the first upper right transverse connecting rod, the second upper right transverse connecting rod,..., the Kth upper right transverse connecting rod, and the transverse connecting rods on the lower side of the inner rod are successively the first lower right transverse connecting rod, the second lower right transverse connecting rod,..., the Kth lower right transverse connecting rod; along the direction of the middle limiting ring towards the left side of the inner rod, the transverse connecting rods on the upper side of the inner rod are successively the first upper left transverse connecting rod, the second upper left transverse connecting rod,..., the Mth upper left transverse connecting rod, and the transverse connecting rods on the lower side of the inner rod are successively the first lower left transverse connecting rod, the second lower left transverse connecting rod,..., the Mth lower left transverse connecting rod.

[0012] Preferably, the scissor mechanism is specifically arranged as follows: both ends of the first lower left horizontal link are respectively hinged to the lower end of the first middle front scissor rod and the lower end of the first left rear scissor rod, ……, both ends of the (M-1)th lower left horizontal link are respectively hinged to the lower end of the (M-2)th left front scissor rod and the lower end of the (M-1)th left rear scissor rod, both ends of the Mth lower left horizontal link are respectively hinged to the lower end of the (M-1)th left front scissor rod and the lower end of a second scissor rod, and the upper end of the second scissor rod is hinged to the Mth left sliding sleeve one; both ends of the first upper left horizontal link are respectively hinged to the upper end of the first middle rear scissor rod and the upper end of the first left front scissor rod, ……, both ends of the (M-1)th upper left horizontal link are respectively hinged to the upper end of the (M-2)th left rear scissor rod and the upper end of the (M-1)th left front scissor rod, both ends of the Mth upper left horizontal link are respectively hinged to the upper end of the (M-1)th left rear scissor rod and the upper end of another second scissor rod, and the lower end of the another second scissor rod is hinged to the Mth left sliding sleeve one; both ends of the first upper right horizontal link are respectively hinged to the upper end of the first middle front scissor rod and the upper end of the first right rear scissor rod, ……, both ends of the (K-1)th upper right horizontal link are respectively hinged to the upper end of the (K-2)th right front scissor rod and the upper end of the (K-1)th right rear scissor rod, both ends of the Kth upper right horizontal link are respectively hinged to the upper end of the (K-1)th right front scissor rod and the upper end of yet another second scissor rod, and the lower end of the yet another second scissor rod is hinged to the Kth right sliding sleeve one; both ends of the first lower right horizontal link are respectively hinged to the lower end of the first middle rear scissor rod and the lower end of the first right front scissor rod, ……, both ends of the (K-1)th lower right horizontal link are respectively hinged to the lower end of the (K-2)th right rear scissor rod and the lower end of the (K-1)th right front scissor rod, both ends of the Kth lower right horizontal link are respectively hinged to the lower end of the (K-1)th right rear scissor rod and the lower end of still another second scissor rod, and the upper end of the still another second scissor rod is hinged to the Kth right sliding sleeve one; a driving source capable of driving the first middle rear scissor rod and / or the first middle front scissor rod to rotate is arranged on the inner rod, and a telescopic needle is arranged on one side of each horizontal link away from the inner rod.

[0013] Preferably, the synchronous telescopic driving assembly includes a second sliding sleeve, two input power shafts, an intermediate synchronous transmission mechanism and several output rotating shafts. A first telescopic sleeve is sleeved outside each output rotating shaft, and the first telescopic sleeve cannot rotate along its own axis. A second telescopic sleeve is arranged at the lower end of the horizontal link. A second telescopic sleeve is sleeved outside the outer end of each input power shaft. When the first middle rear scissor rod and / or the first middle front scissor rod rotates, it drives the horizontal link to axially slide towards or away from the inner rod. The axial sliding of the second telescopic sleeve drives the input power shaft to rotate, and then the intermediate synchronous transmission mechanism drives all the output rotating shafts to rotate synchronously, and further transforms into the synchronous axial sliding of the first telescopic sleeve and the second telescopic sleeve. A telescopic needle is arranged at one end of the first telescopic sleeve away from the second sliding sleeve.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. In the preparation process of the aqueous polyurethane sports shoe leather base of the present invention, multiple belt pressing wheel groups capable of being stacked are used to press multiple layers of base cloth. The multiple layers of base cloth are arranged in an S shape and wound around the multiple stacked belt pressing wheel groups. Each belt pressing wheel group includes a swinging base cloth stretching component capable of stretching the surface of the multiple layers of base cloth from the inside outwards, and also includes a dynamic needle punching component capable of adjusting the distance between the annular belts according to actual needs so as to adjust the needle punching distance. At the same time, it also includes a base cloth deviation rectifying component capable of adjusting the left and right deviation when the multiple layers of base cloth are transmitted left and right, thereby ensuring the accurate transportation of the multiple layers of base cloth and the fitting quality of the multiple layers of base cloth. In addition, the base cloth deviation rectifying component can also adjust different transmission speeds when the transmission speeds of different cross-sections of the multiple layers of base cloth are different, further ensuring the stable transmission of the multiple layers of base cloth. The belt pressing wheel groups can be selected in different numbers according to actual needs, and in cooperation with the S-shaped arrangement and winding of the multiple layers of base cloth, the multiple layers of base cloth can be stretched and needle punched on both the front and back sides, which can better improve the pressing effect of the multiple layers of base cloth.

[0015] 2. Both the first heat preservation pressing roller group and the second heat preservation pressing roller group of the present invention include a roller inner core and a number of belt clutch outer guide sleeves movably arranged outside the roller inner core. Each of the number of belt clutch outer guide sleeves includes a number of one-way locking components. The one-way locking components can be used in cooperation with the base cloth deviation rectifying component. When it is necessary to accelerate the area where the transmission speed of the multiple layers of base cloth is slower, the base cloth deviation rectifying component can engage the annular belt at the corresponding area, accelerate the rotation speed of the base cloth deviation rectifying component, so that the annular belt generates a transmission speed faster than the rotation speed of the roller inner core, and finally the one-way locking component is unlocked, and the annular belt at this place rotates faster, thereby being able to accelerate the area with a slower transmission speed, so that the entire multiple layers of base cloth can be transmitted as a whole during transmission, and better ensure the pressing and forming of the multiple layers of base cloth.

[0016] 3. The dynamic needle punching component, the swinging base cloth stretching component and the base cloth deviation rectifying component of the present invention all include a base cloth treatment roller group. A number of telescopic rods are arranged outside the base cloth treatment roller group. The number of telescopic rods is arranged outside the inner telescopic driving rod group. The base cloth treatment roller group also includes an outer roller cover provided with a number of protruding hole slots. The telescopic rods protrude from the protruding hole slots. A middle slot is arranged inside the annular belt. By the protrusion of the telescopic rods, they can be inserted into the middle slot. Driven by the movement of the inner telescopic driving rod group, the telescopic rods slide along the axial direction of the base cloth treatment roller group, thereby being able to adjust the distance between adjacent annular belts, realize the adjustment of the needle punching distance, or realize the stretching of the outer surface of the multiple layers of base cloth, and can also realize the correction of the left and right offset of the multiple layers of base cloth.

[0017] 4. The inner telescopic drive rod group includes an inner telescopic fork rod group and several synchronous telescopic drive components. The inner telescopic fork rod group consists of several shear fork rods, transverse connecting rods and sliding sleeves. The synchronous telescopic drive components include an input power shaft, an intermediate synchronous transmission mechanism and several output rotating shafts. The input power shaft can be connected to several output rotating shafts through the intermediate synchronous transmission mechanism. The input power shaft can be driven to rotate by the movement of the transverse connecting rod. The transverse connecting rod, shear fork rod and sliding sleeve form a shear fork mechanism. By controlling the rotation of the shear fork, the vertical sliding of the transverse connecting rod is realized. The vertical sliding of the transverse connecting rod is converted into the rotation of the input power shaft. The rotation of the input power shaft is realized through the rotation of the intermediate synchronous transmission mechanism, and the rotation of the output rotating shaft is finally converted into the telescopic movement of the first telescopic sleeve, thereby realizing the synchronous telescopic movement of the telescopic needles on the output rotating shaft and the input power shaft. At the same time, the telescopic needles on different synchronous telescopic drive components can also perform synchronous telescopic movements. In addition, the above setting of the inner telescopic drive rod group realizes a compact structure while achieving a good synchronous effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 wherein (a) is a bottom view of the production equipment of the aqueous polyurethane sports shoe leather base, and (b) is a sectional view taken along line A-A of (a); Figure 2 is a schematic structural diagram of the production equipment of the aqueous polyurethane sports shoe leather base of the present application; Figure 3 is a schematic structural diagram of the belt pressing wheel group; Figure 4 is a schematic structural diagram of the first heat preservation pressing roller group or the second heat preservation pressing roller group; Figure 5 is a schematic structural diagram of the annular belt; Figure 6 is a schematic structural diagram of the roller inner core; Figure 7 is a schematic structural diagram of the belt clutch outer guide sleeve; Figure 8 wherein (a) is a state diagram of the one-way locking component in the open state, and (b) is a state diagram of the one-way locking component in the closed state; Figure 9 is a schematic structural diagram of the base fabric treatment roller group Figure 1 ; Figure 10 wherein (a) is the inner telescopic drive rod group, and (b) is the enlarged view C of (a); Figure 11 wherein (a) is the front view of the outer roller cover, and (b) is the sectional view taken along line D-D of (a); Figure 12 is Figure 11 (a) the sectional view taken along line E-E; Figure 13 Schematic diagram of the base fabric treatment roller group structure Figure 2 ; Figure 14 is Figure 13 Schematic diagram of the structure after removing the outer roller cover; Figure 15 is Figure 9 Schematic diagram of the structure after removing the outer roller cover Figure 1 ; Figure 16 is Figure 9 Schematic diagram of the structure after removing the outer roller cover Figure 2 ; Figure 17 Schematic diagram of the synchronous telescopic drive assembly structure Figure 1 ; Figure 18 In (a) is the schematic diagram of the synchronous telescopic drive assembly structure Figure 1 Side view; (b) is the F - F cross - sectional view of (a); Figure 19 In (a) is the schematic diagram of the synchronous telescopic drive assembly structure Figure 2 Side view; (b) is the G - G cross - sectional view of (a); Figure 20 In (a) is the schematic diagram of the second sliding sleeve; (b) is the front view of the second sliding sleeve; (c) is the H - H cross - sectional view of (b); Figure 21 In (a) is Figure 20 (c)'s J - J cross - sectional view; (b) is the enlarged view K of (a); Figure 22 In (a) is the front view of the inner rod; (b) is the schematic diagram of the inner rod structure; Figure 23 In (a) is the front view of the first sliding sleeve; (b) is the schematic diagram of the first sliding sleeve structure; Figure 24 In (a) is the schematic diagram of the transverse connecting rod; (b) is the side view of the transverse connecting rod; (c) is the L - L cross - sectional view of (b); Figure 25 In (a) is the schematic diagram of the second scissor rod; (b) is the side view of the second scissor rod; (c) is the front view of the second scissor rod; Figure 26 In (a) is the schematic diagram of the first scissor rod; (b) is the side view of the first scissor rod; (c) is the front view of the first scissor rod; Figure 27 In (a) is the schematic diagram of the first support plate or the second support plate Figure 1 、(b) is the schematic diagram of the first support plate or the second support plate Figure 2 ; (c) is the front view of the first support plate or the second support plate; Figure 28 Explosion schematic diagram for assembling the first support plate or the second support plate Figure 1 ; Figure 29 Explosion schematic diagram of the structure of the first support plate or the second support plate Figure 2 。

[0019] Among them, 1. Multi-layer base fabric; 2. Base fabric pressing device; 3. Base; 4. Belt pressing wheel group; 5. First support plate; 6. Second support plate; 7. Swing base fabric stretching assembly; 8. Dynamic needle punching assembly; 9. Base fabric deviation rectifying assembly; 10. First heat preservation pressing roller group; 11. Second heat preservation pressing roller group; 12. Second receiving hole; 13. Third receiving hole; 14. Pressing belt group; 15. Inner core of the roller; 16. Outer guide sleeve for belt clutch; 17. Ring belt; 18. First ornament; 19. First rotation drive source; 20. Second rotation drive source; 21. Second ornament; 22. Third rotation drive source; 23. Fourth rotation drive source; 24. Base fabric treatment roller group; 25. Outer roller cover; 26. Inner telescopic drive rod group; 27. Telescopic needle; 28. Inner telescopic fork rod group; 29. Synchronous telescopic drive assembly; 30. Inner rod; 31. Middle limiting ring; 32. First sliding sleeve; 33. First scissors rod; 34. Second scissors rod; 35. Transverse connecting rod; 36. Second sliding sleeve; 37. Input power shaft; 38. Input bevel gear; 39. Intermediate transmission bevel gear; 40. Output rotating shaft; 41. Output bevel gear; 42. First telescopic sleeve; 43. First needle mounting seat; 44. Second needle mounting seat; 45. Second telescopic sleeve; 46. One-way locking assembly; 47. Plate main body; 48. Vertical chute; 49. First rotating hole; 50. Second rotating hole; 51. First left semi-circular arc; 52. First right semi-circular arc; 53. Second left semi-circular arc; 54. Second right semi-circular arc; 55. First rotating shaft; 56. Second rotating shaft; 57. Vertical slider; 58. Transverse drive source; 59. Fifth rotation drive source; 61. Middle convex ring; 62. First through hole; 63. Belt receiving groove; 64. Middle slot; 65. Extended hole groove; 66. First sliding body; 67. Second through hole; 68. Gear mounting groove; 69. Second sliding body; 70. Third through hole; 71. First hinge shaft; 72. Second hinge shaft; 73. Middle straight section; 74. First arc section; 75. Second arc section; 76. First hinge end; 77. Second hinge end; 78. Lower straight section; 79. Third arc section; 80. Third hinge end; 81. Triangular receiving groove hole; 82. Swing block; 83. Biasing spring; 84. First receiving hole; 85. Plate main body. Specific embodiments

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Embodiment 1

[0021] A preparation process for a waterborne polyurethane sports shoe leather base includes the following steps: a. Preparation of multi-layer base fabric: Take a waterborne polyurethane screen as the middle layer, and ultra-fine fiber non-woven fabric as the upper and lower surface layers. Apply glue between the middle layer and the upper surface layer, and apply glue between the middle layer and the lower surface layer. After preliminary pressing by a pressing roller, a multi-layer base fabric 1 is formed, and then after pressing and needling by a base fabric pressing device 2, a processed multi-layer base fabric 1 is formed; b. Impregnation with waterborne polyurethane slurry: Immerse the processed multi-layer base fabric 1 in the waterborne polyurethane slurry. The components of the waterborne polyurethane slurry include waterborne polyurethane, wetting agent, thickening agent, leveling agent, defoaming agent and deionized water, with a solid content of 20%-40%, a room temperature viscosity of 2000 mPa·s to 2500 mPa·s, and a liquor pick-up rate of 100%-200%; After curing, a waterborne polyurethane sports shoe leather base is obtained; The hard segment diisocyanate of the waterborne polyurethane is isophorone diisocyanate IPDI, the soft segment is polycarbonate diol and small molecule diol, and the hydrophilic chain extender is dimethylolpropionic acid. Its specific synthesis method is to first dehydrate polycarbonate diol under vacuum, then mix it with isophorone diisocyanate IPDI and stir evenly, then add a catalyst and react until the polycarbonate diol is completely consumed and there is an excess of isophorone diisocyanate IPDI, then cool down to adjust the viscosity, add small molecule diol (1,4-butanediol) and dimethylolpropionic acid, and continue to react until the NCO mass fraction reaches 4.5%, cool down and add TEA to neutralize the reaction, and then add deionized water and EDA, emulsify and disperse, and remove the organic solvent to obtain the waterborne polyurethane. The above specific preparation method of the waterborne polyurethane is a known preparation method in the art.

[0022] In addition, the wetting agent can be selected as polyether-modified silicone, and the addition amount is 0.1%-2% of the total amount of the waterborne polyurethane slurry; the thickening agent can be selected as hydrophobic-modified polyurethane, and the addition amount is 0.2%-1.5% of the total amount of the waterborne polyurethane slurry; the leveling agent can be selected as fluorocarbon-modified acrylate, and the addition amount is 0.1%-1% of the total amount of the waterborne polyurethane slurry; the defoaming agent can be selected as polyether-modified silicone oil, and the addition amount is 0.1%-0.8% of the total amount of the waterborne polyurethane slurry. Example 2

[0023] As Figure 1 - 29As shown, it also includes a production device for an aqueous polyurethane sports shoe leather base, which includes a base fabric pressing device 2. The base fabric pressing device 2 includes a base 3 and a plurality of belt pressing wheel groups 4 arranged in a stacked manner on the base 3. The belt pressing wheel group 4 includes a first heat-insulating pressing roller group 10, a second heat-insulating pressing roller group 11, a pressing belt group 14, a first support plate 5, a second support plate 6, a swinging base fabric stretching component 7, a dynamic needle punching component 8, and a base fabric deviation rectifying component 9. The pressing belt group 14 is wound around the first heat-insulating pressing roller group 10 and the second heat-insulating pressing roller group 11. The first support plate 5 and the second support plate 6 are arranged on both sides of the pressing belt group 14. The swinging base fabric stretching component 7, the dynamic needle punching component 8, and the base fabric deviation rectifying component 9 are movably arranged between the first support plate 5 and the second support plate 6. The pressing belt group 14 is composed of a plurality of annular belts 17. The swinging base fabric stretching component 7 includes a pair of base fabric treatment roller groups 24, two swing rods two 21, two rotary drive sources three 22, and two rotary drive sources four 23. The middle parts of the two swing rods two 21 are respectively rotatably arranged in the first support plate 5 and the second support plate 6. One rotary drive source three 22 and one rotary drive source four 23 are respectively arranged at the ends of the two swing rods two 21. One of the pair of base fabric treatment roller groups 24 is rotatably arranged in the two rotary drive sources three 22. The other of the pair of base fabric treatment roller groups 24 is rotatably arranged in the two rotary drive sources four 23. The dynamic needle punching component 8 includes two swing rods one 18, two rotary drive sources one 19, two rotary drive sources two 20, and another pair of base fabric treatment roller groups 24. The middle parts of the two swing rods one 18 are respectively rotatably arranged in the first support plate 5 and the second support plate 6. One rotary drive source one 19 and one rotary drive source two 20 are respectively arranged at the ends of the two swing rods one 18. One of the other pair of base fabric treatment roller groups 24 is rotatably arranged in the two rotary drive sources one 19. The other of the other pair of base fabric treatment roller groups 24 is rotatably arranged in the two rotary drive sources two 20. The base fabric deviation rectifying component 9 is slidably arranged on the first support plate 5 and the second support plate 6. The base fabric deviation rectifying component 9 includes two vertical sliders 57, two rotary drive sources five 59, and yet another base fabric treatment roller group 24. The two vertical sliders 57 are respectively slidably arranged vertically on the first support plate 5 and the second support plate 6. The rotary drive sources five 59 are respectively slidably arranged horizontally in the two vertical sliders 57. The yet another base fabric treatment roller group 24 is arranged in the two rotary drive sources five 59. Telescopic needles 27 capable of sliding along the axial direction of the base fabric treatment roller group 24 are arranged in the base fabric treatment roller groups 24. The telescopic needles 27 in the swinging base fabric stretching component 7 and the base fabric deviation rectifying component 9 can be inserted into the annular belt 17 to drive the closely attached annular belt 17 to unfold.The telescopic needle 27 of a base fabric treatment roller set 24 in the dynamic acupuncture assembly 8 can be inserted into the annular belt 17 to drive the closely attached annular belt 17 to unfold, and the telescopic needle 27 of another base fabric treatment roller set 24 can pass through the gap between the annular belts 17 and be inserted into the multi-layer base fabric 1.

[0024] As Figure 1 - 2 shown, the number of the several belt pressing wheel sets 4 is N, where N is a natural number greater than or equal to 2. Along the direction of the base 3 towards the belt pressing wheel sets 4, the several belt pressing wheel sets 4 are successively the 1st belt pressing wheel set, the 2nd belt pressing wheel set,..., the Nth belt pressing wheel set. The multi-layer base fabric 1 is wound around the 1st belt pressing wheel set, the 2nd belt pressing wheel set,..., the Nth belt pressing wheel set in an S shape, enters from the base 3 and the 1st belt pressing wheel set, and exits from the Nth belt pressing wheel set.

[0025] The base fabric treatment roller set 24 includes an outer roller cover 25, an inner telescopic drive rod set 26 and the telescopic needle 27. A number of protruding hole slots 65 are formed on the outer roller cover 25. The inner telescopic drive rod set 26 includes an inner telescopic fork rod set 28 and a number of synchronous telescopic drive assemblies 29. The inner telescopic drive rod set 26 includes an inner rod 30, a number of first scissors rods 33, four second scissors rods 34, a number of transverse connecting rods 35 and a number of first sliding sleeves 32. A middle limiting ring 31 is arranged in the middle of the inner rod 30. Two hinge shafts 72 are respectively arranged at both ends of the middle limiting ring 31. Two hinge shafts 71 are respectively arranged at both ends of the first sliding sleeve 32. The number of the first sliding sleeves 32 slidingly sleeved on the inner rod 30 is M on the left side of the middle limiting ring 31 and K on the right side of the middle limiting ring 31. Both M and K are natural numbers greater than or equal to 1. Figure 16For example, along the direction of the middle limiting ring 31 towards the left side of the inner rod 30, the several first sliding sleeves 32 are successively the first left first sliding sleeve, the second left first sliding sleeve, ……, the Mth left first sliding sleeve; along the direction of the middle limiting ring 31 towards the right side of the inner rod 30, the several first sliding sleeves 32 are successively the first right first sliding sleeve, the second right first sliding sleeve, ……, the Kth right first sliding sleeve. The hinge shafts 71 and 72 near the front side of the inner rod 30 are respectively the front hinge shaft 71 and the front hinge shaft 72, and the hinge shafts 71 and 72 near the rear side of the inner rod 30 are respectively the rear hinge shaft 71 and the rear hinge shaft 72. The number of the transverse connecting rods 35 is 2M + 2K, and the telescopic needles 27 are arranged on all the transverse connecting rods 35. The scissor rods 33 hinged to the front hinge shaft 71 of the first left first sliding sleeve, the second left first sliding sleeve, ……, the (M - 1)th left first sliding sleeve are defined as the first left front scissor rod 33, the second left front scissor rod 33, ……, the (M - 1)th left front scissor rod 33; the scissor rods 33 hinged to the rear hinge shaft 71 of the first left first sliding sleeve, the second left first sliding sleeve, ……, the (M - 1)th left first sliding sleeve are defined as the first left rear scissor rod 33, the second left rear scissor rod 33, ……, the (M - 1)th left rear scissor rod 33; the scissor rods 33 hinged to the front hinge shaft 71 of the first right first sliding sleeve, the second right first sliding sleeve, ……, the (K - 1)th right first sliding sleeve are defined as the first right front scissor rod 33, the second right front scissor rod 33, ……, the (K - 1)th right front scissor rod 33; the scissor rods 33 hinged to the rear hinge shaft 71 of the first right first sliding sleeve, the second right first sliding sleeve, ……, the (K - 1)th right first sliding sleeve are defined as the first right rear scissor rod 33, the second right rear scissor rod 33, ……, the (K - 1)th right rear scissor rod 33; the scissor rod 33 hinged to the front hinge shaft 72 is the middle front scissor rod 33, and the scissor rod 33 hinged to the rear hinge shaft 72 is the middle rear scissor rod 33. Along the direction of the middle limiting ring 31 towards the right side of the inner rod 30, the transverse connecting rods 35 located on the upper side of the inner rod 30 are successively the first upper right transverse connecting rod, the second upper right transverse connecting rod, ……, the Kth upper right transverse connecting rod, and the transverse connecting rods 35 located on the lower side of the inner rod 30 are successively the first lower right transverse connecting rod, the second lower right transverse connecting rod, ……, the Kth lower right transverse connecting rod; along the direction of the middle limiting ring 31 towards the left side of the inner rod 30, the transverse connecting rods 35 located on the upper side of the inner rod 30 are successively the first upper left transverse connecting rod, the second upper left transverse connecting rod, ……, the Mth upper left transverse connecting rod, and the transverse connecting rods 35 located on the lower side of the inner rod 30 are successively the first lower left transverse connecting rod, the second lower left transverse connecting rod, ……, the Mth lower left transverse connecting rod; both ends of the first lower left transverse connecting rod are respectively hinged to the lower end of the middle front scissor rod 33 and the lower end of the first left rear scissor rod 33, ……, both ends of the (M - 1)th lower left transverse connecting rod are respectively hinged to the lower end of the (M - 2)th left front scissor rod 33 and the lower end of the (M - 1)th left rear scissor rod 33, and both ends of the Mth lower left transverse connecting rod are respectively hinged to the lower end of the (M - 1)th left front scissor rod 33 and the lower end of a scissor rod 34, and the upper end of the scissor rod 34 is hinged to the Mth left first sliding sleeve;The two ends of the first upper left horizontal link are respectively hinged to the upper ends of the first middle rear scissor link and the first upper left front scissor link, ……, the two ends of the (M - 1)th upper left horizontal link are respectively hinged to the upper ends of the (M - 2)th left rear scissor link and the (M - 1)th upper left front scissor link, the two ends of the Mth upper left horizontal link are respectively hinged to the upper end of the (M - 1)th left rear scissor link and the upper end of another scissor link 34, and the lower end of the said another scissor link 34 is hinged to the Mth left sliding sleeve one; the two ends of the first upper right horizontal link are respectively hinged to the upper ends of the first middle front scissor link and the first upper right rear scissor link, ……, the two ends of the (K - 1)th upper right horizontal link are respectively hinged to the upper ends of the (K - 2)th right front scissor link and the (K - 1)th upper right rear scissor link, the two ends of the Kth upper right horizontal link are respectively hinged to the upper end of the (K - 1)th right front scissor link and the upper end of another scissor link 34, and the lower end of the said another scissor link 34 is hinged to the Kth right sliding sleeve one; the two ends of the first lower right horizontal link are respectively hinged to the lower ends of the first middle rear scissor link and the first upper right front scissor link, ……, the two ends of the (K - 1)th lower right horizontal link are respectively hinged to the lower ends of the (K - 2)th right rear scissor link and the (K - 1)th upper right front scissor link, the two ends of the Kth lower right horizontal link are respectively hinged to the lower end of the (K - 1)th right rear scissor link and the lower end of another scissor link 34, and the upper end of the said another scissor link 34 is hinged to the Kth right sliding sleeve one; a driving source capable of driving the first middle rear scissor link and / or the first middle front scissor link to rotate is arranged on the inner rod 30, such as a driving motor or a driving telescopic cylinder, and the telescopic needle 27 is arranged on one side of each horizontal link 35 away from the inner rod 30.;

[0026] Such as Figure 10 , 16 -24 shows, the number of the synchronous telescopic driving components 29 is M + K. Taking Figure 16 as an example, along the direction of the middle limiting ring 31 towards the left side of the inner rod 30, the synchronous telescopic driving components are successively the first left synchronous telescopic driving component, the second left synchronous telescopic driving component, ……, the Mth left synchronous telescopic driving component; along the direction of the middle limiting ring 31 towards the right side of the inner rod 30, the synchronous telescopic driving components are successively the first right synchronous telescopic driving component, the second right synchronous telescopic driving component, ……, the Kth right synchronous telescopic driving component. The Mth upper left horizontal link and the Mth lower left horizontal link are respectively connected with the Mth left synchronous telescopic driving component, and the Kth upper right horizontal link and the Kth lower right horizontal link are respectively connected with the Kth right synchronous telescopic driving component.

[0027] The synchronous telescopic drive assembly 29 includes a second sliding sleeve 36, two input power shafts 37, an intermediate synchronous transmission mechanism, and a number of output rotating shafts 40. A first telescopic sleeve 42 is sleeved outside each output rotating shaft 40. The first telescopic sleeve 42 cannot rotate along its own axis. A second telescopic sleeve 45 is provided at the lower end of the transverse connecting rod 35. A second telescopic sleeve 45 is sleeved outside the outer end of each input power shaft 37. When the first rear middle scissors rod and / or the first front middle scissors rod rotates, it drives the transverse connecting rod 35 to axially slide towards or away from the inner rod 30. The axial sliding of the second telescopic sleeve 45 drives the input power shaft 37 to rotate. Then, the intermediate synchronous transmission mechanism drives all the output rotating shafts 40 to rotate synchronously, and further transforms into the synchronous axial sliding of the first telescopic sleeve 42 and the second telescopic sleeve 45. Telescopic needles 27 are provided at the ends of the first telescopic sleeve 42 far from the second sliding sleeve 36. Thus, through the transverse expansion and contraction of the inner telescopic fork rod group 28, the telescopic needles 27 slide transversely along the axial direction of the outer roller cover 25, thereby realizing the adjustment of the distance between the telescopic needles 27.

[0028] The second sliding sleeve 36 includes a first sliding body 66. A number of gear mounting grooves 68 are provided on the outer edge of the first sliding body 66. The intermediate synchronous transmission mechanism includes intermediate drive bevel gears 39 rotatably provided in the number of gear mounting grooves 68, input bevel gears 38 provided at the ends of the input power shafts 37 close to the first sliding body 66, and output bevel gears 41 provided at the ends of the output rotating shafts 40 close to the first sliding body 66. The input bevel gears 38 are meshed with the intermediate drive bevel gears 39, and the intermediate drive bevel gears 39 are meshed with the output bevel gears 41.

[0029] Spiral grooves or thread grooves or lead screw threads are provided on the outer sides of the input power shafts 37 and the output rotating shafts 40, and corresponding spiral grooves or thread grooves or lead screw nuts are provided on the inner sides of the second telescopic sleeves 45 and the first telescopic sleeves 42.

[0030] The gear mounting grooves 68 are a number of conical grooves uniformly distributed along the outer circumference of the first sliding body 66. As shown in Figure 20 (a), through grooves are provided between adjacent conical grooves. As shown in Figure 21 (a), the angle between the axis of the conical groove corresponding to the input bevel gear 38 and the axis of the adjacent conical groove corresponding to the intermediate drive bevel gear 39 is γ2. The angle between the axis of the conical groove corresponding to the output bevel gear 41 adjacent to the intermediate drive bevel gear 39 and the axis of the conical groove corresponding to the intermediate drive bevel gear 39 is γ1. The angle between the axis of the conical groove corresponding to the input bevel gear 38 and the axis of the conical groove corresponding to the intermediate drive bevel gear 39 is γ3. Then γ3 = γ1 + γ2, γ1 = γ2. As shown in Figure 20 (a) and Figure 21As shown in (b) of , the angles between the edges of the conical groove without the through groove and the axis are δ3 and δ4, and the angles between the edges of the conical groove with the through groove and the axis are δ1 and δ2, then δ1 = δ2 = δ3 = δ4. A needle mounting seat one 43 is provided at one end of the telescopic sleeve one 42 away from the sliding body one 66, and the telescopic needle 27 is arranged on the needle mounting seat one 43. A needle mounting seat two 44 is provided on the side of the transverse connecting rod 35 away from the telescopic sleeve two 45, and the telescopic needle 27 is arranged on the needle mounting seat two 44.

[0031] The telescopic sleeve one 42 cannot rotate along its own axis. This can be achieved, for example, by providing telescopic arc segments that can perform telescopic actions with each other between adjacent telescopic sleeves one 42. In this way, it can not only prevent the rotation between the telescopic sleeves one 42, but also adapt to the axial sliding of the telescopic sleeves one 42 approaching or moving away from the sliding body one 66; or a notch as shown in Figure 23 is opened at the edge of the needle mounting seat one 43 along the axis direction of the sliding body one 66. A chute accommodating structure for the notch to slide is provided inside the outer roller cover 25, so as to prevent the telescopic sleeve one 42 from rotating around its own axis.

[0032] As Figures 11 - 12 shown, for the protruding hole groove 65 opened on the outer roller cover 25, when diverging from the center to both ends, the distance between adjacent protruding hole grooves gradually becomes smaller, and the length of the protruding hole groove 65 gradually becomes longer. In this way, it can adapt to the transverse expansion and contraction of the inner telescopic fork rod group 28, and also makes the moving distance of the telescopic needle 27 from less to more when extending from the center of the outer roller cover 25 to both ends. When stretching the surface of the multi-layer base cloth 1, the stretching force on the outer side of the multi-layer base cloth 1 is greater than that on the inner side, which can better stretch the multi-layer base cloth 1. The outer roller cover 25 is fixedly arranged on the inner rod 30, and receiving holes one 84 are opened at both ends of the outer roller cover 25. As Figure 12 shown, the angle between adjacent protruding hole grooves 65 is β, then β = γ3.

[0033] As Figures 20 - 26As shown, a through hole two 67 for the inner rod 30 to pass through is formed in the inner side of the sliding body one 66. A through hole three 70 for the inner rod 30 to pass through is formed in the inner side of the sliding body two 69. Notches are formed on both sides of the sliding body two 69, and a hinge shaft one 71 is arranged at the notches. The scissors rod one 33 includes an intermediate straight section 73, a first arc section 74, a second arc section 75, a first hinge end 76 and a second hinge end 77. The first arc section 74 and the second arc section 75 are respectively arranged at both ends of the intermediate straight section 73. The first hinge end 76 is arranged at one end of the first arc section 74, and the second hinge end is arranged at one end of the second arc section 75. The first hinge end 76 and the second hinge end are flush, and the distance between the plane where the first hinge end 76 and the second hinge end are located and the axis of the inner rod 30 is less than the distance between the plane where the intermediate straight section 73 is located and the axis of the inner rod 30. The scissors rod two 34 includes a lower straight section 78, a third arc section 79 and a third hinge end 80. Both ends of the third arc section 79 are respectively provided with the lower straight section 78 and the third hinge end 80. The distance between the plane where the third hinge end 80 is located and the inner rod 30 is less than the distance between the plane where the lower straight section is located and the inner rod 30.

[0034] As Figures 4 - 8 shown, the first heat preservation press roller group 10 and the second heat preservation press roller group 11 both include a roller inner core 15 and a plurality of belt clutch outer guide sleeves 16 movably arranged outside the roller inner core 15. The belt clutch outer guide sleeves 16 are connected with the roller inner core 15 through a one-way locking assembly 46. A plurality of intermediate convex rings 61 are arranged on the outer periphery of the roller inner core 15. A through hole one 62 is arranged on the inner side of the belt clutch outer guide sleeve 16, and a belt receiving groove 63 is formed on the outer side. Accommodating grooves for cooperating with the intermediate convex rings 61 are formed at both ends of the through hole one 62. The one-way locking assembly 46 includes a swing block 82 rotatably arranged in the belt clutch outer guide sleeve 16. A triangular receiving groove hole 81 is formed in the roller inner core 15. When the belt clutch outer guide sleeve 16 is engaged with the roller inner core 15, the swing block 82 is driven by a biasing spring 83 to be clamped into the triangular receiving groove hole 81, and as Figure 8 shown in (b) of [reference], when the roller inner core 15 rotates clockwise, it can drive the belt clutch outer guide sleeve 16 to rotate clockwise. When the clockwise rotation speed of the belt clutch outer guide sleeve 16 is greater than that of the roller inner core 15, the swing block 82 can overcome the elastic force of the biasing spring 83 so that the swing block 82 can slide out along one side of the triangular receiving groove hole 81, realizing the relative rotation of the belt clutch outer guide sleeve 16 with respect to the roller inner core 15.

[0035] As Figure 5As shown, the radius of the annular belt 17 around the first heat-insulating pressing roller group 10 is R1, and the radius around the second heat-insulating pressing roller group 11 is R2. An intermediate slot 64 is also provided on the inner side of the annular belt 17. The telescopic needle 27 can be inserted into the intermediate slot 64. When the telescopic needle 27 slides horizontally along the axis direction of the base fabric treatment roller group 24, it can drive the adjacent annular belts 17 to open with each other. The telescopic needle 27 includes a fixed needle body and a telescopic needle head. The telescopic needle head is slidably arranged inside the fixed needle body through a telescopic driving source (such as a telescopic cylinder or a telescopic motor), so that the length can be adjusted as needed. The specific telescopic structure is common knowledge in the art and will not be elaborated here.

[0036] As Figures 27 - 29 As shown, the first support plate 5 and the second support plate 6 have the same structure, and both include a plate main body 85. A vertical sliding groove 48, a first rotation hole 49, a second rotation hole 50, a left semi-circular arc 51, a right semi-circular arc 52, a left semi-circular arc 53 and a right semi-circular arc 54 are provided on the plate main body 85. The vertical sliding groove 48 is arranged at one end of the plate main body 85. The vertical slider 57 is slidably arranged in the vertical sliding groove 48. The first rotation hole 49 is provided on the upper side of the other end of the plate main body 85. The left semi-circular arc 51 and the right semi-circular arc 52 are respectively arranged on the left and right sides of the first rotation hole 49, and are respectively for the first rotation driving source 19 and the second rotation driving source 20 to slide. The second rotation hole 50 is provided on the lower side of the other end of the plate main body 85. The left semi-circular arc 53 and the right semi-circular arc 54 are respectively arranged on the left and right sides of the second rotation hole 50, and are respectively for the third rotation driving source 22 and the fourth rotation driving source 23 to slide. A first rotating shaft 55 is arranged in the middle of the first swing rod 18, and a second rotating shaft 56 is arranged in the middle of the second swing rod 21. The first rotating shaft 55 is inserted into the first rotation hole 49, and the second rotating shaft 56 is inserted into the second rotation hole 50. The first rotating shaft 55 and the second rotating shaft 56 can rotate relative to the plate main body 85. For example, a rotation driving source (such as a rotating motor or a rotating telescopic cylinder, not shown in the figure) can be set for rotation driving.

[0037] A number of transverse driving sources 58 are arranged on the vertical slider 57. The other end of the transverse driving source 58 is connected to the fifth rotation driving source 59. Through the telescopic action of the transverse driving source 58, the transverse position adjustment of the fifth rotation driving source 59 can be realized. A second receiving hole 12 for clamping with the inner rod 30 is provided at the end of the first rotation driving source 19, the second rotation driving source 20, the third rotation driving source 22 and the fourth rotation driving source 23. A third receiving hole 13 for clamping with the inner rod 30 is provided at the end of the fifth rotation driving source 59.

[0038] As Figure 27As shown, the first rotating hole 49, the second rotating hole 50, the first left semi-circular arc 51, the first right semi-circular arc 52, the second left semi-circular arc 53 and the second right semi-circular arc 54 have the same structure. The radius of the inner arc of the first left semi-circular arc 51 and the first right semi-circular arc 52 is r1, and the radius of the outer arc is r2. The angle between the upper end of the inner arc of the first left semi-circular arc 51 and the horizontal axis is α1, the angle between the lower end of the inner arc of the first left semi-circular arc 51 and the horizontal axis is α2, the angle between the upper end of the inner arc of the first right semi-circular arc 52 and the horizontal axis is α3, and the angle between the lower end of the inner arc of the first right semi-circular arc 52 and the horizontal axis is α4. Then r2 > r1, α1 = α4, α2 = α3. Preferably, α1 = α2.

[0039] Preferably, the end of the telescopic needle 27 of the base fabric treatment roller set 24 of the swing base fabric stretching assembly 7 is a right-angle end that fits with the middle slot 64; the end of the telescopic needle 27 of the dynamic needle punching assembly 8 for adjusting the expansion gap between the annular belts 17 is a right-angle end that fits with the middle slot 64, and the end of the telescopic needle 27 for inserting into the multi-layer base fabric 1 is a tip. The end of the telescopic needle 27 of the base fabric deviation rectifying assembly 9 of the base fabric treatment roller set 24 is a right-angle end that fits with the middle slot 64.

[0040] Furthermore, a number of locking slots are also provided in the middle slot 64 of the annular belt 17. In this way, when the base fabric deviation rectifying assembly 9 needs to correct different cross-sections of the multi-layer base fabric 1 and the base fabric transfer speeds are different, the telescopic needle 27 can be inserted into the locking slots, and by adjusting the rotation speed of the base fabric treatment roller set 24, the annular belt 17 engaged with the telescopic needle 27 can move at a speed different from that of the first heat preservation pressing roller set 10 and the second heat preservation pressing roller set 11, so as to realize the transmission adjustment of the multi-layer base fabric 1.

[0041] Furthermore, as Figure 3 shown, only one base fabric deviation rectifying assembly 9 is schematically shown in the belt pressing wheel set 4. In order to increase the flexibility of the equipment, two base fabric deviation rectifying assemblies 9 can also be provided, which are respectively arranged at the upper end and the lower end of the vertical sliding groove 48, and further include a lifting driving source capable of driving the vertical slider 57 to slide up and down, such as a driving motor or a lifting driving cylinder can be set.

[0042] Further, the telescopic needle 27 is disposed on the first needle mounting seat 43 and the second needle mounting seat 44 through a detachable connection manner. Specifically, the detachable connection manner can be selected as snap connection, threaded connection, etc. Through the detachable connection manner, it is possible to flexibly install and set the telescopic needle 27 according to actual processing requirements. Further, heating devices are provided on the first heat preservation pressing roller group 10 and the second heat preservation pressing roller group 11, so as to ensure that the glue can be in a non-solidified state, can well stretch the upper surface layer and the lower surface layer composed of ultra-fine fiber non-woven fabric, and can make the treatment effect of the multi-layer base cloth better again. Preferably, the belt pressing wheel group 4 is connected to each other through a detachable assembly manner.

[0043] In order to facilitate those skilled in the art to clearly understand the working principle of the production equipment of the waterborne polyurethane sports shoe leather base in Embodiment 2, the base cloth pressing device 2 is described as follows: According to the process requirements of the multi-layer base cloth 1 to be pressed and formed, the number of the belt pressing wheel group 4 is selected, and the multi-layer base cloth 1 is wound around the belt pressing wheel group 4 in an S shape. The heating devices provided on the first heat preservation pressing roller group 10 and the second heat preservation pressing roller group 11 are heated. When the multi-layer base cloth 1 passes through the swing base cloth stretching assembly 7, the second swing rod 21 is driven by the rotation driving source to rotate back and forth around the second rotating shaft 56. When the second swing rod 21 is in a horizontal state, both swing base cloth stretching assemblies 7 are in a retracted state, as Figure 9 shown. At this time, the lower surface of the telescopic needle 27 is flush with the upper surface inside the annular belt 17, and the telescopic needle 27 is aligned with the middle slot 64. When the second swing rod 21 continues to swing and is in an inclined state, the telescopic needle 27 of the swing base cloth stretching assembly 7 below the horizontal line is aligned with the middle slot 64 of the annular belt 17. Then, the driving source that drives the first middle rear scissors rod and / or the first middle front scissors rod to rotate of the swing base cloth stretching assembly 7 below the horizontal line acts, so that the inner telescopic fork rod group 28 is in an unfolded state, as Figure 13 、 14As shown, at the same time, the telescopic needle 27 is in the extended state to ensure that the telescopic needle 27 can still be located in the middle slot 64. At this time, the annular belt 17 changes from being tightly attached to being stretched, so that it can drive the surface of the multi-layer base fabric 1 to stretch outwards. Before the swing rod two 21 changes from horizontal to inclined and then back to horizontal, the telescopic needles 27 of the swing base fabric stretching assembly 7 below the horizontal line can all press against the annular belt 17. At the same time, the inner telescopic fork rod group 28 changes from being completely retracted to being completely extended. When the swing rod two 21 is in the horizontal state, the telescopic needle 27 retracts, and the annular belt 17 is reset without support. Since there is no support in the middle of the annular belt 17, it exerts almost no pressure on the multi-layer base fabric 1. Therefore, when the annular belt 17 retracts and resets, it will not affect the surface of the multi-layer base fabric 1. The action of the other swing base fabric stretching assembly 7 when it tilts downwards is the same as that of the previous swing base fabric stretching assembly 7, so it will not be elaborated here. Through the swing base fabric stretching assembly 7, it continuously stretches the multi-layer base fabric 1, ensuring the forming quality of the multi-layer base fabric 1; in addition, when the multi-layer base fabric 1 reaches the dynamic needle punching assembly 8, the telescopic needle 27 of a swing base fabric stretching assembly 7 in the dynamic needle punching assembly 8 is inserted into the middle slot 64 of the annular belt 17, and the telescopic degree of the inner telescopic fork rod group 28 is adjusted as needed, so that the opening degree of the annular belt 17 can be selected. The telescopic needle 27 of the other swing base fabric stretching assembly 7 can enter the multi-layer base fabric 1 from the gap between adjacent annular belts 17. By continuously rotating the base fabric treatment roller group 24, the telescopic needle 27 continuously performs needle punching operations. Compared with the existing fixed needle punching gap, the needle punching spacing and needle punching frequency can be selected as needed; when the overall multi-layer base fabric 1 being transported deflects left and right, the driving base fabric deviation correction assembly 9 slides along the vertical chute 48, contacts the annular belt 17, and the telescopic needle 27 is inserted into the middle slot 64, and then according to the deflection direction, the driving transverse drive source 58 slides left or right, so that the multi-layer base fabric 1 deflecting left and right can be corrected; in addition, if when the multi-layer base fabric 1 is being transported, in the entire transport cross-section, there is a situation where the middle is transported fast and the two sides are transported slowly, or the middle is transported slowly and the two sides are transported slowly, the corresponding telescopic needle 27 of the slower-transported one is inserted into the locking slot hole in the middle slot 64 of the corresponding annular belt 17, and the other telescopic needles 27 retract. Then, the base fabric treatment roller group 24 of the driving base fabric deviation correction assembly 9 rotates in the same rotation direction as the first heat preservation pressing roller group 10 and the second heat preservation pressing roller group 11, and at the same time, the rotation speed of the base fabric treatment roller group 24 is greater than that of the first heat preservation pressing roller group 10 and / or the second heat preservation pressing roller group 11, so that the belt clutch outer guide sleeve 16 rotates relative to the roller inner core 15, and the one-way locking assembly 46 at the corresponding annular belt 17 is disengaged from the lock, so that the annular belt 17 can be driven at a faster speed compared to other annular belts 17, thereby compensating for the defect of slow transportation, and finally enabling the entire multi-layer base fabric 1 to be uniformly transported in the entire cross-section.

[0044] The above has described the present invention in detail, aiming to enable those skilled in the art to understand the content of the present invention and implement it. However, it should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A preparation process of an aqueous polyurethane sports shoe leather base, characterized in that: The steps include the following: a. Prepare a multi-layer base fabric: Take a waterborne polyurethane screen as the middle layer, and ultra-fine fiber non-woven fabric as the upper and lower surface layers. Apply glue between the middle layer and the upper surface layer, and apply glue between the middle layer and the lower surface layer. After preliminary pressing by a pressing roller, a multi-layer base fabric (1) is formed, and then through the pressing and needling of a base fabric pressing device (2), a processed multi-layer base fabric (1) is formed; b. Impregnate with waterborne polyurethane slurry: Immerse the processed multi-layer base fabric (1) in the waterborne polyurethane slurry. The components of the waterborne polyurethane slurry include waterborne polyurethane, wetting agent, thickening agent, leveling agent, defoaming agent and deionized water. The solid content is 20%-40%, the room temperature viscosity is 2000 mPa·s to 2500 mPa·s, and the liquor pickup rate is 100%-200%; after curing, a waterborne polyurethane sports shoe leather base is obtained.

2. The preparation process of an aqueous polyurethane sports shoe leather base according to claim 1, characterized in that: The wetting agent is polyether-modified silicone, and the addition amount is 0.1%-2% of the total amount of the waterborne polyurethane slurry; the thickening agent is hydrophobic modified polyurethane, and the addition amount is 0.2%-1.5% of the total amount of the waterborne polyurethane slurry; the leveling agent is fluorocarbon-modified acrylate, and the addition amount is 0.1%-1% of the total amount of the waterborne polyurethane slurry; the defoaming agent is polyether-modified silicone oil, and the addition amount is 0.1%-0.8% of the total amount of the waterborne polyurethane slurry.

3. A production device for an aqueous polyurethane sports shoe leather base using the preparation process described in claim 1 or 2, characterized in that: The production equipment includes a base fabric pressing device (2), and the base fabric pressing device (2) includes a base (3) and a plurality of belt pressing wheel groups (4) arranged in layers on the base (3). The belt pressing wheel group (4) includes a first heat-insulating pressing roller group (10), a second heat-insulating pressing roller group (11), a pressing belt group (14), a first support plate (5), a second support plate (6), a dynamic needle punching assembly (8) and a base fabric deviation rectifying assembly (9). The pressing belt group (14) is wound around the first heat-insulating pressing roller group (10) and the second heat-insulating pressing roller group (11). The first support plate (5) and the second support plate (6) are arranged on both sides of the pressing belt group (14). The dynamic needle punching assembly (8) and the base fabric deviation rectifying assembly (9) are movably arranged between the first support plate (5) and the second support plate (6). The pressing belt group (14) is composed of a plurality of annular belts (17). The dynamic needle punching assembly (8) includes two first swing rods (18) and another pair of base fabric treatment roller groups (24). The middle parts of the two first swing rods (18) are respectively rotatably arranged in the first support plate (5) and the second support plate (6). One of the another pair of base fabric treatment roller groups (24) is rotatably arranged at one end of the two first swing rods (18), and one of the another pair of base fabric treatment roller groups (24) is rotatably arranged at the other end of the two first swing rods (18). The base fabric deviation rectifying assembly (9) is slidably arranged on the first support plate (5) and the second support plate (6). The base fabric deviation rectifying assembly (9) includes two vertical sliders (57) and another pair of base fabric treatment roller groups (24). The two vertical sliders (57) are respectively vertically slidably arranged on the first support plate (5) and the second support plate (6). Another base fabric treatment roller group (24) is horizontally slidably arranged inside the two vertical sliders (57). Telescopic needles (27) capable of sliding along the axial direction of the base fabric treatment roller group (24) are arranged in all the base fabric treatment roller groups (24). The telescopic needle (27) in the base fabric deviation rectifying assembly (9) can be inserted into the annular belt (17) to drive the closely attached annular belt (17) to unfold. The telescopic needle (27) of one base fabric treatment roller group (24) in the dynamic needle punching assembly (8) can be inserted into the annular belt (17) to drive the closely attached annular belt (17) to unfold, and the telescopic needle (27) of the other base fabric treatment roller group (24) can pass through the gap between the annular belts (17) and be inserted into the multi-layer base fabric (1).

4. The production equipment of the aqueous polyurethane sports shoe leather base according to claim 3, characterized in that: The base fabric pressing device (2) further includes a swinging base fabric stretching assembly (7). The swinging base fabric stretching assembly (7), the dynamic needle punching assembly (8), and the base fabric deviation rectifying assembly (9) are movably arranged between the first support plate (5) and the second support plate (6). The swinging base fabric stretching assembly (7) includes a pair of base fabric treatment roller groups (24) and two second swing rods (21). The middle parts of the two second swing rods (21) are respectively rotatably arranged in the first support plate (5) and the second support plate (6). One of the pair of base fabric treatment roller groups (24) is rotatably arranged at one end of the two second swing rods (21), and the other of the pair of base fabric treatment roller groups (24) is rotatably arranged at the other end of the two second swing rods (21). The telescopic needles (27) in the swinging base fabric stretching assembly (7) and the base fabric deviation rectifying assembly (9) can be inserted into the annular belt (17) to drive the closely attached annular belt (17) to unfold.

5. The production equipment of the aqueous polyurethane sports shoe leather base according to claim 4, characterized in that: The base fabric pressing device (2) further includes two first rotation drive sources (19), two second rotation drive sources (20), two third rotation drive sources (22), and two fourth rotation drive sources (23). One rotation drive source three (22) and one rotation drive source four (23) are respectively arranged at the ends of the two second swing rods (21). One of the pair of base fabric treatment roller groups (24) is rotatably arranged in the two third rotation drive sources (22), and the other of the pair of base fabric treatment roller groups (24) is rotatably arranged in the two fourth rotation drive sources (23). One rotation drive source one (19) and one rotation drive source two (20) are respectively arranged at the ends of the two first swing rods (18). One of the other pair of base fabric treatment roller groups (24) is rotatably arranged in the two first rotation drive sources (19), and the other of the other pair of base fabric treatment roller groups (24) is rotatably arranged in the two second rotation drive sources (20); The base fabric deviation rectifying assembly (9) further includes two fifth rotation drive sources (59). The fifth rotation drive sources (59) are horizontally slidably arranged in the two vertical sliders (57), and one base fabric treatment roller group (24) is arranged in the two fifth rotation drive sources (59).

6. The production equipment of the aqueous polyurethane sports shoe leather base according to claim 3, characterized in that: The first heat-insulating pressure roller group (10) and the second heat-insulating pressure roller group (11) both include a roller inner core (15) and a plurality of belt clutch outer guide sleeves (16) movably arranged outside the roller inner core (15). The belt clutch outer guide sleeve (16) is connected to the roller inner core (15) through a one-way locking component (46). A plurality of intermediate convex rings (61) are arranged on the outer periphery of the roller inner core (15). A through hole one (62) is arranged on the inner side of the belt clutch outer guide sleeve (16), and a belt receiving groove (63) is arranged on the outer side. Accommodating grooves for cooperating with the intermediate convex rings (61) are arranged at both ends of the through hole one (62). The one-way locking component (46) includes a swing block (82) rotatably arranged in the belt clutch outer guide sleeve (16). A triangular receiving groove hole (81) is arranged in the roller inner core (15). When the belt clutch outer guide sleeve (16) is engaged with the roller inner core (15), the swing block (82) is driven by a biasing spring (83) to be inserted into the triangular receiving groove hole (81).

7. The production equipment of the aqueous polyurethane sports shoe leather base according to claim 3, characterized in that: The base fabric treatment roller group (24) includes an outer roller cover (25), an inner telescopic driving rod group (26) and the telescopic needles (27). A plurality of protruding hole grooves (65) are arranged on the outer roller cover (25). The inner telescopic driving rod group (26) includes an inner telescopic fork rod group (28) and a plurality of synchronous telescopic driving components (29). The inner telescopic driving rod group (26) includes an inner rod (30), a plurality of shear fork rods one (33), four shear fork rods two (34), a plurality of transverse connecting rods (35) and a plurality of sliding sleeves one (32). A middle limiting ring (31) is arranged in the middle of the inner rod (30). The plurality of shear fork rods one (33), four shear fork rods two (34), a plurality of transverse connecting rods (35) and a plurality of sliding sleeves one (32) form a shear fork mechanism. The plurality of transverse connecting rods (35) are connected to the plurality of synchronous telescopic driving components (29). Telescopic needles (27) are arranged on both the transverse connecting rods (35) and the synchronous telescopic driving components (29). The movement of the synchronous telescopic driving component (29) is driven by the movement of the shear fork mechanism.

8. The production equipment of the waterborne polyurethane sports shoe leather base according to claim 7, characterized in that: Two hinge shafts II (72) are respectively arranged at both ends of the middle limiting ring (31), and two hinge shafts I (71) are respectively arranged at both ends of the first sliding sleeve (32). The plurality of first sliding sleeves (32) are slidably sleeved on the inner rod (30). The number of the first sliding sleeves (32) on the left side of the middle limiting ring (31) is M, and the number of the first sliding sleeves (32) on the right side of the middle limiting ring (31) is K. Both M and K are natural numbers greater than or equal to 1. Along the direction of the middle limiting ring (31) towards the left side of the inner rod (30), the plurality of first sliding sleeves (32) are successively the 1st left first sliding sleeve, the 2nd left first sliding sleeve,..., the Mth left first sliding sleeve; along the direction of the middle limiting ring (31) towards the right side of the inner rod (30), the plurality of first sliding sleeves (32) are successively the 1st right first sliding sleeve, the 2nd right first sliding sleeve,..., the Kth right first sliding sleeve; the hinge shaft I (71) and the hinge shaft II (72) close to the front side of the inner rod (30) are respectively the front hinge shaft I and the front hinge shaft II, and the hinge shaft I (71) and the hinge shaft II (72) close to the rear side of the inner rod (30) are respectively the rear hinge shaft I and the rear hinge shaft II. The number of the transverse connecting rods (35) is 2M + 2K, and the telescopic needles (27) are arranged on the transverse connecting rods (35). The first shear fork rods (33) hinged to the front hinge shaft I of the 1st left first sliding sleeve, the 2nd left first sliding sleeve,..., the (M - 1)th left first sliding sleeve are the 1st left front first shear fork rod, the 2nd left front first shear fork rod,..., the (M - 1)th left front first shear fork rod, and the first shear fork rods (33) hinged to the rear hinge shaft I of the 1st left first sliding sleeve, the 2nd left first sliding sleeve,..., the (M - 1)th left first sliding sleeve are the 1st left rear first shear fork rod, the 2nd left rear first shear fork rod,..., the (M - 1)th left rear first shear fork rod. The first shear fork rods (33) hinged to the front hinge shaft I of the 1st right first sliding sleeve, the 2nd right first sliding sleeve,..., the (K - 1)th right first sliding sleeve are the 1st right front first shear fork rod, the 2nd right front first shear fork rod,..., the (K - 1)th right front first shear fork rod, and the first shear fork rods (33) hinged to the rear hinge shaft I of the 1st right first sliding sleeve, the 2nd right first sliding sleeve,..., the (K - 1)th right first sliding sleeve are the 1st right rear first shear fork rod, the 2nd right rear first shear fork rod,..., the (K - 1)th right rear first shear fork rod. The first shear fork rod (33) hinged to the front hinge shaft II is the middle front first shear fork rod, and the first shear fork rod (33) hinged to the rear hinge shaft II is the middle rear first shear fork rod. Along the direction of the middle limiting ring (31) towards the right side of the inner rod (30), the transverse connecting rods (35) located on the upper side of the inner rod (30) are successively the 1st upper right transverse connecting rod, the 2nd upper right transverse connecting rod,..., the Kth upper right transverse connecting rod, and the transverse connecting rods (35) located on the lower side of the inner rod (30) are successively the 1st lower right transverse connecting rod, the 2nd lower right transverse connecting rod,..., the Kth lower right transverse connecting rod;Along the direction of the middle limiting ring (31) towards the left side of the inner rod (30), the transverse connecting rods (35) located on the upper side of the inner rod (30) are successively the 1st upper left transverse connecting rod, the 2nd upper left transverse connecting rod,..., the Mth upper left transverse connecting rod, and the transverse connecting rods (35) located on the lower side of the inner rod (30) are successively the 1st lower left transverse connecting rod, the 2nd lower left transverse connecting rod,..., the Mth lower left transverse connecting rod.; 9. The production equipment of the aqueous polyurethane sports shoe leather base according to claim 8, characterized in that: The scissor mechanism is specifically arranged as follows: both ends of the first lower left horizontal link are respectively hinged to the lower end of the first middle front scissor rod and the lower end of the first left rear scissor rod,... both ends of the (M - 1)th lower left horizontal link are respectively hinged to the lower end of the (M - 2)th left front scissor rod and the lower end of the (M - 1)th left rear scissor rod, both ends of the Mth lower left horizontal link are respectively hinged to the lower end of the (M - 1)th left front scissor rod and the lower end of a second scissor rod (34), and the upper end of the second scissor rod (34) is hinged to the Mth left sliding sleeve one; both ends of the first upper left horizontal link are respectively hinged to the upper end of the first middle rear scissor rod and the upper end of the first left front scissor rod,... both ends of the (M - 1)th upper left horizontal link are respectively hinged to the upper end of the (M - 2)th left rear scissor rod and the upper end of the (M - 1)th left front scissor rod, both ends of the Mth upper left horizontal link are respectively hinged to the upper end of the (M - 1)th left rear scissor rod and the upper end of another second scissor rod (34), and the lower end of the another second scissor rod (34) is hinged to the Mth left sliding sleeve one; both ends of the first upper right horizontal link are respectively hinged to the upper end of the first middle front scissor rod and the upper end of the first right rear scissor rod,... both ends of the (K - 1)th upper right horizontal link are respectively hinged to the upper end of the (K - 2)th right front scissor rod and the upper end of the (K - 1)th right rear scissor rod, both ends of the Kth upper right horizontal link are respectively hinged to the upper end of the (K - 1)th right front scissor rod and the upper end of yet another second scissor rod (34), and the lower end of the yet another second scissor rod (34) is hinged to the Kth right sliding sleeve one; both ends of the first lower right horizontal link are respectively hinged to the lower end of the first middle rear scissor rod and the lower end of the first right front scissor rod,... both ends of the (K - 1)th lower right horizontal link are respectively hinged to the lower end of the (K - 2)th right rear scissor rod and the lower end of the (K - 1)th right front scissor rod, both ends of the Kth lower right horizontal link are respectively hinged to the lower end of the (K - 1)th right rear scissor rod and the lower end of still another second scissor rod (34), and the upper end of the still another second scissor rod (34) is hinged to the Kth right sliding sleeve one; a driving source capable of driving the first middle rear scissor rod and / or the first middle front scissor rod to rotate is arranged on the inner rod (30), and the telescopic needle (27) is arranged on one side of each horizontal link (35) away from the inner rod (30).

10. The production equipment of the aqueous polyurethane sports shoe leather base according to claim 8, characterized in that: The synchronous telescopic drive assembly (29) includes a second sliding sleeve (36), two input power shafts (37), an intermediate synchronous transmission mechanism, and a plurality of output rotating shafts (40). A first telescopic sleeve (42) is sleeved outside each output rotating shaft (40). The first telescopic sleeve (42) cannot rotate along its own axis. A second telescopic sleeve (45) is provided at the lower end of the transverse connecting rod (35). A second telescopic sleeve (45) is sleeved outside the outer end of each input power shaft (37). When the first rear middle scissor rod and / or the first front middle scissor rod rotates, it drives the transverse connecting rod (35) to axially slide towards or away from the inner rod (30). The axial sliding of the second telescopic sleeve (45) drives the input power shaft (37) to rotate. Then, the intermediate synchronous transmission mechanism drives all the output rotating shafts (40) to rotate synchronously, thereby converting into the synchronous axial sliding of the first telescopic sleeve (42) and the second telescopic sleeve (45). A telescopic needle (27) is provided at one end of the first telescopic sleeve (42) away from the second sliding sleeve (36).

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