Embossing process for plastic track

Abstract

The invention relates to an embossing process for a plastic runway, and is applied to the field of plastic runways. Comprising the following steps that S1, a base material is pretreated, specifically, the surface of the base material is cleaned, polished and activated, the surface adhesive force is improved, and the base material is an elastic sheet or is sliced; s2, preparing a liquid material, mixing polyurethane, a filler and an auxiliary agent according to a ratio, and uniformly stirring to form a gummosis liquid; s3, gummosis coating: uniformly coating the liquid material on the surface of the base material by adopting a coating device to form a gummosis layer; s4, knurling, wherein patterns are formed on the liquid material through a mold or a tool; and S5, curing treatment is carried out, the curing mode is heating, ultraviolet irradiation or normal-temperature airing, the gummosis layer is cured through the curing treatment, and a stable pattern is formed. Compared with a traditional material, production is easier, and the product is more wear-resistant.

Description

Technical Field

[0001] This application relates to the field of plastic tracks, and particularly to an embossing process for plastic tracks. Background Art

[0002] A plastic track, also known as an all-weather track for track and field sports, has the characteristics of good flatness, high compressive strength, appropriate hardness and elasticity, and stable physical properties. It is conducive to the exertion of athletes' speed and skills, effectively improves sports performance, and reduces the injury rate. A plastic track is composed of materials such as polyurethane rubber, has a certain elasticity and color, and has a certain ability to resist ultraviolet rays and aging resistance. It is the internationally recognized best all-weather outdoor sports ground material.

[0003] The existing production process of prefabricated plastic tracks includes an extrusion process, an embossing process, a forming process, a trimming process, a cross-cutting process, and a winding process. In the embossing process, the traditional material is a rubber solid material, and after embossing, it is vulcanized and formed to make the surface layer effect. However, the formed product does not have good wear resistance, which affects the service life of the product.

[0004] Therefore, we propose an embossing process for plastic tracks to improve the wear resistance of the tracks. Summary of the Invention

[0005] To improve the above problems, this application provides an embossing process for plastic tracks.

[0006] The technical solution of an embossing process for plastic tracks provided by this application: An embossing process for plastic tracks includes the following steps: S1 Substrate pretreatment, cleaning, polishing, and activating the surface of the substrate to improve surface adhesion. The substrate is selected from elastic sheets or elastic substrates are sliced; S2 Liquid material preparation, mixing functional resin, filler, and additives in proportion and stirring evenly to form a flowing glue liquid; S3 Glue coating, using a coating device to evenly coat the liquid material on the surface of the substrate to form a glue layer; S4 Embossing, forming a pattern on the liquid material with a mold or tool; S5 Curing treatment, the curing method is heating, ultraviolet irradiation, or air drying at room temperature. The curing treatment cures the glue layer to form a stable pattern.

[0007] Optionally, the S2 liquid material preparation includes the following steps: S21 Weighing materials, accurately weighing resin, filler, and additives according to the formula; S22 Pre-mixing resin and additives, putting the resin and additives (such as curing agent, diluent) into a container and stirring evenly initially. The additive is a curing agent or a diluent; In S23, add fillers step by step while continuously stirring to avoid caking; In S24, stir evenly and use a stirrer to mix thoroughly to ensure no bubbles and particles; In S25, adjust the viscosity and add a diluent as needed to adjust the viscosity; In S26, filter the mixture to remove impurities and undispersed particles; In S26, degas, perform vacuum degassing to remove bubbles.

[0008] Optionally, the functional resin in S2 is polyurethane, polyurea material or resin; the filler in S2 is carbon fiber or silica powder; the additive in S2 is a leveling agent or a curing agent.

[0009] Optionally, the curing temperature for the curing treatment in S5 is 60 - 120 °C and the curing time is 5 - 30 minutes.

[0010] Optionally, the coating device includes a machine base, a workbench, a screw rod, a spraying moving frame, a spraying box, a nozzle, a scraper, and a feeding assembly. There is a workbench on the base. There is a screw rod inside the machine base, and the screw rod is connected to a stepping motor. The spraying moving frame is connected to the screw rod through a threaded sleeve. There are a spraying threaded rod and a guide rod between the spraying moving frames. The spraying box is sleeved outside the spraying threaded rod and the guide rod. There is a liquid storage tank inside the spraying box. Nozzles are provided at the bottom of the spraying box. A scraper is provided on one side of the spraying moving frame. The scraper is slidably connected to the spraying moving frame. A limiting assembly is provided at the intersection of the spraying moving frame and the scraper. A feeding assembly is provided on one side of the machine base.

[0011] Optionally, the feeding assembly includes an installation frame, a locking slider, a first transmission wheel, a second transmission wheel, a third transmission wheel, a fourth transmission wheel, a first connecting rod, a second connecting rod, and a locking turntable. The installation frame is fixedly connected to the machine base. There is a first roller and a second roller inside the installation frame. The first roller and the second roller are arranged vertically. One end of the first roller is connected to a driving motor, and the other end of the first roller is connected to the first transmission wheel. The first transmission wheel meshes with the second transmission wheel on one side. The second transmission wheel meshes with the third transmission wheel. The third transmission wheel meshes with the fourth transmission wheel. The first transmission wheel and the fourth transmission wheel do not contact. The second transmission wheel and the third transmission wheel are connected by the first connecting rod. The third transmission wheel and the fourth transmission wheel are connected by the second connecting rod.

[0012] Optionally, a slidable locking slider is installed on the side of the installation rack. One end of the locking block is connected to the locking turntable, and the locking turntable is threadedly connected to the installation rack. The positions of the first driving wheel and the second driving wheel are fixed, and the positions of the third driving wheel and the fourth driving wheel are variable.

[0013] Optionally, the limiting component includes a regulating button, a limiting rod, an abutting plate, a return spring, a connecting block, and a limiting tooth. The regulating button is provided on the upper surface of the spraying moving frame. One end of the regulating button is connected to the limiting rod, and a limiting protrusion is provided at one end of the limiting rod. The connecting block and the abutting plate are fixedly installed in the spraying moving frame. A return spring is connected between the abutting plate and the regulating button. The middle part of the limiting rod is rotatably connected to the connecting block through a rotating shaft. A limiting tooth is provided on one side of the scraping plate, and the limiting protrusion at one end of the limiting rod is placed in the limiting tooth.

[0014] Optionally, the cleaning component includes a connecting rod, a mounting block, and a cleaning brush. The connecting rod is fixedly connected to the mounting block, and the cleaning brush is installed below the mounting block. The cleaning brush is made of rubber material, and the cleaning brush is detachably connected to the mounting block.

[0015] Optionally, a negative pressure suction cup is installed on the workbench.

[0016] Optionally, the scraping plate includes a mounting part and a cleaning part, and the mounting part and the cleaning part are designed to be detachable.

[0017] In summary, the present application includes at least one of the following beneficial effects: 1. The traditional material is a rubber solid material, and the surface layer effect is made by vulcanizing and molding after embossing. The present invention now uses polyurethane, and the liquid material is subjected to a glue flowing treatment on the substrate of the body cold buffer layer and embossed on the same plane. Compared with the traditional material, the production of the present invention is simpler and the product is more wear-resistant.

[0018] 2. The coating device in the present application can adjust the roller spacing in the feeding component, and compatible with raw materials of different sizes by changing the spacing.

[0019] 3. The coating device in the present application can adjust the spacing between the scraping plate and the workbench through the limiting component, so that the liquid material can be evenly coated on the surface of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the process flow chart of the embossing process of the present application; Figure 2 is the process flow chart of the preparation of the liquid material of the present application; Figure 3 is the three-dimensional view of the coating device of the present application; Figure 4 Internal structure diagram of the coating device of the present application; Figure 5 Schematic structural diagram of the limit component of the present application.

[0021] Reference signs: 1, machine base; 2, workbench; 3, screw; 4, spraying moving frame; 41, spraying threaded rod; 42, guide rod; 5, spraying box; 6, nozzle; 7, scraper; 71, installation part; 72, cleaning part; 8, feeding component; 81, installation frame; 811, first roller; 812, second roller; 82, locking slider; 83, first driving wheel; 84, second driving wheel; 85, third driving wheel; 86, fourth driving wheel; 87, first connecting rod; 88, second connecting rod; 89, locking turntable; 9, limit component; 91, regulation button; 92, limit rod; 93, abutting plate; 94, return spring; 95, connecting block; 96, limit teeth. Detailed implementation manners

[0022] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings for a more detailed description.

[0023] An embodiment of the present application discloses an embossing process for a plastic runway. Referring to Figure 1 , it includes the following steps: S1 Substrate pretreatment, cleaning, polishing and activating the surface of the substrate to improve surface adhesion, and the substrate is selected from elastic sheets or elastic substrates are sliced; S2 Liquid material preparation, mixing functional resin, filler and additives in proportion and stirring evenly to form a flowing glue liquid; S3 Glue coating, using a coating device to evenly coat the liquid material on the surface of the substrate to form a glue layer; S4 Embossing, forming a pattern on the liquid material with a mold or tool; S5 Curing treatment, the curing methods are heating, ultraviolet irradiation or air drying at room temperature, and the curing treatment cures the glue layer to form a stable pattern.

[0024] Referring to Figure 2 , the S2 liquid material preparation includes the following steps: S21 Weighing materials, accurately weighing resin, filler and additives according to the formula; S22 Pre-mixing resin and additives, putting the resin and additives (such as curing agent, diluent) into a container and stirring evenly initially, and the additives are curing agent or diluent; S23 Adding filler, gradually adding filler and continuously stirring to avoid caking; S24 Uniform stirring, using a stirrer to fully mix to ensure no bubbles and particles; S25 Adjusting viscosity, adding diluent to adjust the viscosity as needed; S26 Filtration, filtering the mixture, removing impurities and undispersed particles; S26 Degassing, vacuum degassing to remove air bubbles.

[0025] The traditional material is a rubber solid material, which is vulcanized and formed after embossing to make the surface layer effect. The present invention now uses polyurethane, and the liquid material is subjected to a glue flowing treatment on the substrate of the body cooling buffer layer and embossed on the same plane. Compared with the traditional material, the production of the present invention is simpler and the product is more wear-resistant.

[0026] Refer to Figure 2 , the functional resin in S2 is polyurethane, polyurea material or resin; the filler in S2 is carbon fiber or silica powder; the auxiliary in S2 is a leveling agent or a curing agent.

[0027] The liquid material is composed of a functional resin filler and an auxiliary, and has functions such as wear resistance, impact resistance, and heat insulation.

[0028] Refer to Figure 2 , the curing temperature of the curing treatment in S5 is 60 - 120 °C, and the curing time is 5 - 30 minutes.

[0029] Refer to Figure 3 and Figure 4 The coating device includes a machine base 1, a workbench 2, a screw 3, a spraying moving frame 4, a spraying box 5, a nozzle 6, a squeegee 7, and a feeding component 8. The workbench 2 is provided on the base 1. There is a screw 3 inside the machine base 1. The screw 3 is connected to a stepping motor. The spraying moving frame 4 is connected to the screw 3 through a threaded sleeve. There are a spraying threaded rod 41 and a guide rod 42 between the spraying moving frames 4. The spraying box 5 is sleeved outside the spraying threaded rod 41 and the guide rod 42. A liquid storage tank is provided inside the spraying box 5. The nozzle 6 is provided at the bottom of the spraying box 5. The squeegee 7 is provided on one side of the spraying moving frame 4. The squeegee 7 is slidably connected to the spraying moving frame 4. A limiting component 9 is provided at the intersection of the spraying moving frame 4 and the squeegee 7. The feeding component 8 is provided on one side of the machine base 1.

[0030] The substrate is transported by the feeding component 8 to the working area of the workbench 2. The negative pressure suction cup fixes the substrate. The polyurethane resin, carbon fiber filler and leveling agent are mixed in proportion and stirred evenly to form a glue flowing liquid. The glue liquid is placed in the liquid storage tank, and the nozzle 6 evenly coats the glue liquid on the surface of the substrate. The coating thickness is 0.5 mm. The squeegee 7 levels the glue liquid on the surface of the substrate, and the limiting component 9 can adjust the height of the squeegee 7.

[0031] Refer to Figure 3 and Figure 4, the feeding assembly 8 includes a mounting frame 81, a locking slider 82, a first transmission wheel 83, a second transmission wheel 84, a third transmission wheel 85, a fourth transmission wheel 86, a first connecting rod 87, a second connecting rod 88 and a locking turntable 89. The mounting frame 81 is fixedly connected to the machine base 1. A first roller 811 and a second roller 812 are provided inside the mounting frame 81. The first roller 811 and the second roller 812 are arranged vertically. One end of the first roller 811 is connected to a driving motor, and the other end of the first roller 811 is connected to the first transmission wheel 83. One side of the first transmission wheel 83 meshes with the second transmission wheel 84. The second transmission wheel 84 meshes with the third transmission wheel 85. The third transmission wheel 85 meshes with the fourth transmission wheel 86. The first transmission wheel 83 and the fourth transmission wheel 86 do not contact each other. The second transmission wheel 84 and the third transmission wheel 85 are connected by the first connecting rod 87. The third transmission wheel 85 and the fourth transmission wheel 86 are connected by the second connecting rod 88.

[0032] Refer to Figure 3 and Figure 4 , a slidable locking slider 82 is installed on the side of the mounting frame 81. One end of the locking slider 82 is connected to the locking turntable 89. The locking turntable 89 is connected to the mounting frame 81 by threads. The positions of the first transmission wheel 83 and the second transmission wheel 84 are fixed, and the positions of the third transmission wheel 85 and the fourth transmission wheel 86 are variable.

[0033] The driving motor at one end of the first roller 811 rotates, driving the first roller 811 to rotate. The first roller 811 drives the first transmission wheel 83 to rotate. The first transmission wheel 83 drives the second transmission wheel 84 to rotate. The second transmission wheel 84 drives the third transmission wheel 85 to rotate. The third transmission wheel 85 drives the fourth transmission wheel 86 to rotate. The fourth transmission wheel 86 drives the second roller 812 to rotate, thereby squeezing the base material to achieve feeding.

[0034] When dealing with base materials of different thicknesses, turn the locking turntable 89. The locking turntable 89 drives the locking slider 82 to move up or down. The locking slider 82 drives the fourth transmission wheel 86 to move up or down. Due to the existence of the second connecting rod 88 and the first connecting rod 87, the third transmission wheel 85 moves to the left or to the right. The third transmission wheel 85 always meshes with the second transmission wheel 84 and the fourth transmission wheel 86, that is, the change in the distance between the first roller 811 and the second roller 812 will not affect the transmission and feeding function, thus adapting to base materials of different thicknesses.

[0035] Refer to Figure 5, the limiting component 9 includes a control button 91, a limiting rod 92, an abutting plate 93, a return spring 94, a connecting block 95 and a limiting tooth 96. The control button 91 is provided on the upper surface of the spraying moving frame 4. One end of the control button 91 is connected to the limiting rod 92. A limiting protrusion is provided at one end of the limiting rod 92. The connecting block 95 and the abutting plate 93 are fixedly installed in the spraying moving frame 4. A return spring 94 is connected between the abutting plate 93 and the control button 91. The middle part of the limiting rod 92 is rotatably connected to the connecting block 95 through a rotating shaft. A limiting tooth 96 is provided on one side of the scraper 7. The limiting protrusion at one end of the limiting rod 92 is placed in the limiting tooth 96.

[0036] By pressing the control button 91, the return spring 94 is compressed, the limiting rod 92 rotates around the rotating shaft, and the limiting protrusion at one end of the limiting rod 92 leaves the limiting tooth 96. At this time, the height of the scraper 7 is adjusted according to the thickness of the base material. After the adjustment is completed, the control button 91 is released, the return spring 94 resets, and the limiting protrusion at one end of the limiting rod 92 is placed in the limiting tooth 96 again to fix the scraper.

[0037] Refer to Figure 3 , a negative pressure suction cup is installed on the workbench 2.

[0038] Refer to Figure 3 , the scraper 7 includes a mounting part 71 and a cleaning part 72, and the mounting part 71 and the cleaning part 72 are designed to be detachable.

[0039] The implementation principle of an embossing process for a plastic runway in an embodiment of the present application is as follows: Polyurethane is used, and the liquid material is subjected to a glue flowing treatment on the substrate of the body cooling buffer layer and embossed on the same plane. Compared with traditional materials, the production of the present invention is simpler and the product is more wear-resistant.

[0040] The substrate is transported by the feeding component 8 to the working area of the workbench 2. The negative pressure suction cup fixes the substrate. Polyurethane resin, carbon fiber filler and leveling agent are mixed in proportion and stirred evenly to form a glue flowing liquid. The glue flowing liquid is placed in the liquid storage tank. The spray head 6 moves in two directions along the screw rod 3 and the spraying threaded rod 42. The spray head 6 evenly coats the glue flowing liquid on the surface of the substrate. The coating thickness is 0.5 mm. The scraper 7 levels the glue flowing liquid on the surface of the substrate, and the limiting component 9 can adjust the height of the scraper 7.

[0041] When dealing with substrates of different thicknesses, turn the locking turntable 89. The locking turntable 89 drives the locking slider 82 to move up or down. The locking slider 82 drives the fourth transmission wheel 86 to move up or down. Due to the existence of the second connecting rod 88 and the first connecting rod 87, the third transmission wheel 85 moves to the left or to the right. The third transmission wheel 85 is always meshed with the second transmission wheel 84 and the fourth transmission wheel 86. That is, the change in the distance between the first roller 811 and the second roller 812 will not affect the transmission and feeding function, thus adapting to substrates of different thicknesses.

[0042] By pressing the control button 91, the reset spring 94 is compressed. The limiting rod 92 rotates around the rotating shaft. The limiting protrusion at one end of the limiting rod 92 leaves the limiting teeth 96. At this time, adjust the height of the scraper 7 according to the substrate thickness. After the adjustment is completed, release the control button 91. The reset spring 94 resets, and the limiting protrusion at one end of the limiting rod 92 is placed back into the limiting teeth 96 to fix the scraper.

[0043] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An embossing process for a plastic runway, characterized in that: The method comprises the following steps: S1 substrate pretreatment, cleaning, grinding and activating the substrate surface to improve the surface adhesion, wherein the substrate is an elastic sheet or the elastic substrate is sliced; S2 liquid material preparation, mix the functional resin, filler and additives in proportion, stir evenly to form a flowing liquid; S3 glue coating, using a coating device to evenly coat the liquid material on the surface of the substrate to form a glue layer; S4 embossing, using a mold or tool to form a pattern on the liquid material; S5 curing treatment, the curing method is heating, ultraviolet irradiation or drying at room temperature. The curing treatment solidifies the flow glue layer to form a stable pattern.

2. The embossing process for a plastic runway according to claim 1, wherein : The S2 liquid material preparation comprises the following steps: S21 weighs materials, accurately weighs resins, fillers and additives according to the formula; S22 pre-mixes the resin and the additive, puts the resin and the additive into a container, and preliminarily stirs them evenly, wherein the additive is a curing agent or a diluent; S23 adds filler, gradually adding filler and stirring continuously to avoid agglomeration; S24 Stir evenly, use a stirrer to mix thoroughly to ensure there are no bubbles and particles; S25 adjusts the viscosity, add diluent to adjust the viscosity as needed; S26 filtration, filtering the mixture to remove impurities and undispersed particles; S26 degassing, vacuum degassing, remove bubbles.

3. The embossing process for a plastic runway according to claim 2, characterized in that : The functional resin in S2 is polyurethane, polyurea material or resin; the filler in S2 is carbon fiber or silicon powder; the auxiliary agent in S2 is a leveling agent or a curing agent.

4. A embossing process for a plastic runway according to claim 3, characterized in that: The heating in S5 is 60-120° C. and the curing time is 5-30 minutes.

5. A embossing process for plastic runway according to claim 4, characterized in that: The coating device comprises a machine base (1), a workbench (2), a screw (3), a spray movable frame (4), a spray box (5), a nozzle (6), a scraper (7), and a feeding assembly (8). The base (1) is provided with a workbench (2). The machine base (1) is provided with a screw (3). The screw (3) is connected to a stepping motor. The spray movable frame (4) is connected to the screw (3) via a threaded sleeve. A spray threaded rod (41) and a guide rod (42) are provided between the spray movable frame (4). 2), the spray box (5) is sleeved on the outside of the spray threaded rod (41) and the guide rod (42), a liquid storage tank is provided in the spray box (5), a spray head (6) is provided at the bottom of the spray box (5), a scraper (7) is provided on one side of the spray movable frame (4), the scraper (7) and the spray movable frame (4) are slidably connected, a limit assembly (9) is provided at the intersection of the spray movable frame (4) and the scraper (7), and a feeding assembly (8) is provided on one side of the machine base (1).

6. The embossing process for a plastic runway according to claim 5, characterized in that: The feeding assembly (8) includes a mounting frame (81), a locking slider (82), a first driving wheel (83), a second driving wheel (84), a third driving wheel (85), a fourth driving wheel (86), a first connecting rod (87), a second connecting rod (88) and a locking turntable (89). The mounting frame (81) is fixedly connected to the machine base (1). A first roller (811) and a second roller (812) are provided inside the mounting frame (81). The first roller (811) and the second roller (812) are arranged vertically. One end of the first roller (811) is connected to a driving motor, and the other end of the first roller (811) is connected to the first driving wheel (83). One side of the first driving wheel (83) meshes with the second driving wheel (84). The second driving wheel (84) meshes with the third driving wheel (85). The third driving wheel (85) meshes with the fourth driving wheel (86). The first driving wheel (83) and the fourth driving wheel (86) do not contact each other. The second driving wheel (84) and the third driving wheel (85) are connected by the first connecting rod (87). The third driving wheel (85) and the fourth driving wheel (86) are connected by the second connecting rod (88).

7. A embossing process for a plastic runway according to claim 6, characterized in that: A slidable locking slider (82) is installed on the side of the mounting frame (81). One end of the locking slider (82) is connected to the locking turntable (89). The locking turntable (89) is connected to the mounting frame (81) by threads. The positions of the first driving wheel (83) and the second driving wheel (84) are fixed, and the positions of the third driving wheel (85) and the fourth driving wheel (86) are variable.

8. A embossing process for plastic runway according to claim 7, characterized in that: The limiting assembly (9) includes a regulating button (91), a limiting rod (92), an abutting plate (93), a return spring (94), a connecting block (95) and a limiting tooth (96). The regulating button (91) is provided on the upper surface of the spraying moving frame (4). One end of the regulating button (91) is connected to the limiting rod (92). A limiting protrusion is provided at one end of the limiting rod (92). The connecting block (95) and the abutting plate (93) are fixedly installed inside the spraying moving frame (4). A return spring (94) is connected between the abutting plate (93) and the regulating button (91). The middle of the limiting rod (92) is rotatably connected to the connecting block (95) through a rotating shaft. A limiting tooth (96) is provided on one side of the scraper (7). The limiting protrusion at one end of the limiting rod (92) is placed inside the limiting tooth (96).

9. A embossing process for a plastic runway according to claim 8, characterized in that: A negative pressure suction cup is installed on the workbench (2).

10. A embossing process for plastic runway according to claim 9, characterized in that: The scraper (7) includes a mounting part (71) and a cleaning part (72). The mounting part (71) and the cleaning part (72) are designed to be detachable.

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