A device and process for making a cord fabric for an inflatable rubber ball

Abstract

The application provides a manufacturing device and process for cord fabric of air-filled rubber ball, which comprises a frame, a glue dipping mechanism, a transmission mechanism and a glue scraping mechanism. The glue dipping mechanism comprises a glue collecting tank and a glue dipping groove. Glue liquid is stored in the glue collecting tank and the glue dipping groove. The glue liquid in the glue collecting tank passes through the cord fabric under the action of pressure and penetrates into the glue dipping groove. The glue liquid in the glue dipping groove acts on the cord fabric again in the form of dipping. The excess glue liquid in the glue dipping groove flows into the glue collecting tank. The transmission mechanism comprises a roller assembly, a driving assembly and a gear assembly. The roller assembly drives the movement of the cord fabric and can stretch the cord fabric. The glue scraping mechanism scrapes the glue liquid on the dipped cord fabric and the roller assembly and makes the scraped glue liquid flow into the glue dipping groove. The application can stretch the cord fabric, make the glue liquid evenly enter the interior of the cord fabric, scrape the excess glue liquid on the cord fabric with a scraping knife, make the thickness of the cord fabric uniform and consistent, recycle the scraped glue liquid and improve the utilization rate of raw materials.

Description

Technical Field

[0001] This invention relates to the field of curtain fabric production technology, specifically to an apparatus and process for manufacturing curtain fabric for inflatable rubber backrests. Background Technology

[0002] An inflatable rubber ball is an inflatable spherical object, typically made of materials such as rubber and PVC. After inflation, it can be used as a children's toy, sports equipment, bedding, etc. Due to its lightweight nature and ease of storage and portability, inflatable rubber balls are also popular for outdoor sports, travel, camping, and other occasions. When making an inflatable rubber ball, the rubber ball needs to be placed in the center of a curtain fabric and inflated to achieve the appropriate size and firmness. Curtain fabric is a lightweight material commonly used for home decoration purposes such as curtains, sunshades, and partition curtains. Its material can be cotton, linen, polyester, silk, etc., and it is characterized by its softness, breathability, and durability. In the production of inflatable rubber balls, the curtain fabric is used as the outer layer to wrap the rubber ball.

[0003] During the impregnation process of nylon cord fabric, the fabric is typically passed through a molten adhesive, allowing the adhesive to adhere to the fabric. However, the small mesh size of nylon cord fabric prevents the adhesive from penetrating its interior, resulting in reduced strength and impacting product quality. Furthermore, the impregnated nylon cord fabric requires drying. Before drying, excess adhesive needs to be scraped off using a scraper. Current production processes typically use a scraper to directly remove this adhesive, and collection in a container leads to some adhesive being collected for an extended period, causing changes in viscosity and hindering recycling, resulting in material waste.

[0004] Patent CN103920616B discloses a tire cord impregnation control system, which includes an impregnation tank, an impregnation roller, and a circulation tank. The impregnation roller is mounted above the impregnation tank via bearings, and its lower part is immersed in the adhesive solution in the impregnation tank. An overflow tank is provided on the side where the tire cord enters the impregnation tank, and the overflow tank is connected to the circulation tank. The circulation tank is connected to the impregnation tank via a circulation pump. Two pressure rollers are provided on the side where the tire cord exits the impregnation tank. After impregnation, the tire cord passes through the two pressure rollers. A filter return tank is provided below the two pressure rollers, and the filter return tank is connected to the circulation tank. The inlet of the circulation tank is connected to an adhesive replenishment device via a one-way valve. This control system reduces the contact between the tire cord and air during impregnation, preventing foam formation, and can control the impregnation liquid level and impregnation time to maintain a constant level, thereby improving the quality of tire cord impregnation. However, it cannot solve the problem of small mesh size in the tire cord, making it difficult for the adhesive solution to penetrate the interior of the tire cord. Summary of the Invention

[0005] In view of this, the present invention provides an apparatus and process for manufacturing the curtain fabric of an inflatable rubber ball, which can stretch the curtain fabric to allow the adhesive to enter the interior of the curtain fabric evenly, and scrape off the excess adhesive on the curtain fabric with a scraper to make the curtain fabric thickness uniform, and the scraped adhesive can be recycled to improve the utilization rate of raw materials.

[0006] To solve the above-mentioned technical problems, the present invention provides an apparatus for manufacturing the curtain fabric of an inflatable rubber ball, comprising a frame, an impregnation mechanism, a transmission mechanism, and a scraping mechanism disposed on the frame. The impregnation mechanism includes a collection box and an impregnation tank, both of which contain adhesive liquid. Under pressure, the adhesive liquid in the collection box passes through the curtain fabric and permeates into the impregnation tank. The adhesive liquid in the impregnation tank acts on the curtain fabric again by impregnation. Excess adhesive liquid in the impregnation tank is discharged into the collection box.

[0007] The transmission mechanism includes a roller assembly, a drive assembly for rotating the roller assembly, and a gear assembly. The roller assembly drives the curtain fabric to move and can stretch the curtain fabric.

[0008] The adhesive scraping mechanism scrapes off the adhesive from the impregnated curtain fabric and roller assembly, and then passes the scraped adhesive into the impregnation tank.

[0009] Using the above technical solution, the roller assembly can stretch the fabric, increasing the mesh size and allowing the adhesive to penetrate more effectively. The fabric is first impregnated with adhesive under pressure, followed by regular impregnation; this multiple impregnation process achieves a uniform and dense adhesive finish. After impregnation, excess adhesive on the fabric and roller assembly is scraped off by a scraper mechanism, ensuring a uniform fabric thickness. The scraped-off adhesive is recycled into the impregnation tank. When the adhesive level in the tank exceeds a specified height, the excess adhesive is channeled into a collection box for further recycling, improving raw material utilization and saving costs.

[0010] Specifically, the glue collection box is located above the frame, and an extruder is provided on one side of the glue collection box. The extruder is located above the curtain fabric. The glue collection box is provided with a glue discharge port, which is connected to the extruder through a glue discharge pipe. The glue in the glue collection box enters the extruder through the glue discharge pipe, and the extruder forces the glue onto the curtain fabric.

[0011] Adhesive liquid is introduced into the glue collection box and enters the extruder through the glue discharge port and glue discharge pipe. Under the action of the extruder, the cord fabric is stretched and the mesh size increases, and the adhesive liquid is forced into the mesh size of the cord fabric. The extruder is a twin-screw extruder, which is set on the frame. The outlet of the extruder is located above the cord fabric, and the adhesive liquid extruded from the extruder can act on the cord fabric.

[0012] In addition, the impregnation tank includes an impregnation zone one and an impregnation zone two. The impregnation zone one is located above the impregnation zone two. The roller assembly divides the cord fabric into multiple layers. The top layer of the cord fabric is located in the impregnation zone one. The extruder presses the adhesive onto the top layer of the cord fabric. The remaining layers of cord fabric are located in the impregnation zone two. The adhesive liquid in the impregnation tank is located in the impregnation zone two and is applied to the cord fabric again by over-impregnation.

[0013] The top layer of the cord fabric is located in the first impregnation zone. The adhesive liquid in the collection box is applied to the top layer of the cord fabric by an extruder. Then, driven by the roller assembly, it enters the second impregnation zone, which is filled with adhesive liquid. The remaining multiple layers of cord fabric rotate in the second impregnation zone along the S direction and are impregnated multiple times.

[0014] The roller assembly includes a roller group one disposed at the inlet end of the frame, a roller group two disposed at the outlet end of the frame, and multiple rollers disposed in the impregnation tank. The multiple rollers divide the curtain fabric into upper and lower layers. The two rollers located in the first impregnation zone have different diameters and stretch the curtain fabric. Two eccentric rollers are provided in the second impregnation zone to stretch the curtain fabric again.

[0015] The cord fabric enters the impregnation tank under the traction of roller assembly one, first entering impregnation zone one. Driven by two rollers of different diameters, it is stretched. The roller closer to roller assembly one has a smaller diameter and slower rotation speed, while the roller closer to roller assembly two has a larger diameter and faster rotation speed. This stretches the cord fabric, increasing the mesh size. After being pressurized and impregnated by an extruder, the cord fabric enters impregnation zone two under the drive of the cylinder assembly. Impregnation zone two has two eccentric rollers located above the upper layer of cord fabric, pressing and stretching it. Simultaneously, a support roller is located below this layer of cord fabric, further increasing the mesh size and improving the impregnation effect. Alternatively, multiple rollers can be installed in impregnation zone two, allowing the cord fabric to rotate multiple times and undergo multiple impregnations before finally being output along roller assembly two.

[0016] The drive assembly includes several motors that drive the second roller assembly and the rollers to rotate, and the gear assembly includes several gears that are connected in a transmission manner between adjacent rollers. The rotation of the second roller assembly and the rollers is driven by motors and connected by gear transmission.

[0017] Specifically, the glue scraping mechanism includes a glue scraper knife disposed in the glue impregnation tank near the outlet end, a scraper groove disposed on the roller assembly two, and a scraper knife. The glue scraper knife is located on the upper and lower sides of the curtain fabric, and the glue scraped off the curtain fabric flows into the glue impregnation tank. The roller assembly two includes an upper roller and a lower roller. The scraper groove is disposed on one side of the upper roller, and the scraper knife is disposed at the lower part of the lower roller. A glue collection groove is provided at the lower part of the scraper knife. The glue collection groove is connected to the glue impregnation tank through a glue collection pipe one. A glue collection pipe two is provided below the scraper groove, and the glue collection pipe two is connected to the glue collection pipe one.

[0018] The adhesive scraped off the lower roller flows into the adhesive collection tank, and then flows into the adhesive dipping tank through the adhesive collection pipe one. The adhesive scraped off the upper roller flows into the scraper groove, and then enters the adhesive collection pipe one through the adhesive collection pipe two, and flows into the adhesive dipping tank.

[0019] Excess adhesive on the curtain fabric is scraped off with a scraper. The distance between the scrapers on both sides of the curtain fabric is adjustable, which can adjust the adhesive thickness of the curtain fabric. The scraper removes the adhesive from the upper and lower rollers to prevent the adhesive adhering to the upper and lower rollers from slipping when the curtain fabric passes through, thus affecting the adhesive quality of the curtain fabric.

[0020] In addition, a suction pipe is connected between the impregnation tank and the collection box, and a water pump is installed on the suction pipe to suck excess glue from the impregnation tank into the collection box.

[0021] The dip tank is equipped with a height line located in the second dip zone. When the liquid level of the adhesive is higher than this height line, the water pump is started to suck the excess adhesive into the collection tank for recycling.

[0022] Preferably, the glue collection box is equipped with a heating tube inside to heat the glue liquid inside the glue collection box. A blower and a heating box are provided below the glue collection box. The heating box is located above the curtain fabric. Under the blowing of the blower, heat enters the heating box and heats the glue liquid inside the glue collection box. The remaining heat is passed downward into the curtain fabric to preheat the curtain fabric.

[0023] The heating element is located at the bottom of the adhesive collection tank to heat the adhesive solution. The blower and heating chamber are located below the collection tank; hot air from the blower enters the heating chamber, also heating the adhesive solution to ensure sufficient fluidity and provide a better liquid state for subsequent impregnation of the tire cord fabric. Simultaneously, excess heat from the heating chamber is channeled downwards into the tire cord fabric to preheat it, ensuring better tensile properties during impregnation and efficient energy utilization.

[0024] The glue collection box is provided with multiple glue discharge ports. Each glue discharge port is connected to an extruder through a glue discharge pipe. The multiple extruders are connected by a bracket and a rotating shaft and are driven by a drive motor.

[0025] Multiple extruders are set up to simultaneously squeeze the adhesive onto the fabric. Each extruder is driven by a single drive motor. This requires connecting the multiple extruders via a bracket and a rotating shaft. The bracket supports the rotating shaft, and the rotating shaft and the multiple extruders are connected by gears and driven by the drive motor.

[0026] The manufacturing process of the curtain fabric used for inflatable rubber backrests includes the following steps:

[0027] 1. Check that sufficient glue has been injected into the glue collection box and the glue dipping tank in the second dipping zone. Turn on the heating tube and blower to heat the glue in the glue dipping tank.

[0028] 2. The heating box preheats the cord fabric, and multiple motors that drive the roller assembly are started. The cord fabric begins to move under the action of the rollers. At the same time, the drive motor that drives the extruder is started. The glue in the glue collection box enters the extruder through the glue discharge pipe. Under the action of the extruder, the glue is pressed into the cord fabric located in the first impregnation zone. Two rollers with different diameters in the first impregnation zone stretch the cord fabric. Two eccentric rollers in the second impregnation zone stretch the cord fabric again. The cord fabric is impregnated in the second impregnation zone.

[0029] 3. After impregnation, excess adhesive on the curtain fabric is scraped off by a scraper and flows into the impregnation tank. Adhesive scraped off from the lower roller of roller group two flows into the collection tank and then into the impregnation tank through collection pipe one. Adhesive scraped off from the upper roller flows into the scraper groove, then into collection pipe one through collection pipe two and flows into the impregnation tank.

[0030] 4. When the liquid level of the glue in the impregnation tank reaches the specified height, start the water pump to suck the glue that is above the specified level into the collection box through the suction pipe.

[0031] 5. After the impregnation is completed, turn off all motors, drive motors, heating elements and blowers.

[0032] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0033] 1. The roller assembly stretches the fabric, increasing the mesh size and allowing the adhesive to penetrate more effectively. The fabric is first pressure-impregnated with adhesive, followed by regular impregnation; this multiple impregnation processes achieve a uniform and dense adhesive finish. After impregnation, excess adhesive on the fabric and roller assembly is scraped off by a scraper mechanism, ensuring a uniform fabric thickness. The scraped-off adhesive is recycled into the impregnation tank. When the adhesive level in the tank exceeds a specified height, the excess adhesive is channeled into a collection box for further recycling, improving raw material utilization and saving costs.

[0034] 1. In this invention, the cord fabric enters the impregnation tank under the traction of the first roller assembly. It first enters the first impregnation zone, where it is stretched by two rollers of different diameters, increasing the mesh size. After being impregnated by an extruder, the cord fabric enters the second impregnation zone under the drive of the cylinder assembly. The second impregnation zone is equipped with two eccentric rollers that press and stretch the cord fabric, thus increasing the mesh size and achieving a better impregnation effect. Alternatively, multiple rollers can be set in the second impregnation zone, allowing the cord fabric to rotate multiple times and undergo multiple impregnations before finally being output along the second roller assembly, achieving a uniform and dense impregnation effect.

[0035] 2. After impregnation, excess adhesive on the curtain fabric and roller assembly is scraped off by a scraper mechanism, and excess adhesive on the curtain fabric is scraped off by a scraper blade. The distance between the scraper blades on both sides of the curtain fabric is adjustable, which can adjust the impregnation thickness of the curtain fabric. The adhesive on the upper and lower rollers is scraped off to prevent the adhesive adhering to the upper and lower rollers from slipping when the curtain fabric passes through, thus affecting the impregnation quality of the curtain fabric.

[0036] 3. The adhesive scraped off from the cord fabric and roller assembly enters the dipping tank for reuse. When the adhesive in the dipping tank reaches a specified height, the excess adhesive is passed into the collection box for further recycling, which improves the utilization rate of raw materials and saves costs.

[0037] 4. A heating element is installed at the bottom of the glue collection box, and a blower and a heating chamber are installed below the glue collection box. The hot air sent in by the blower enters the heating chamber, and the heating element and blower heat the glue liquid to ensure that the glue liquid has sufficient fluidity, providing a better liquid state for the subsequent impregnation of the cord fabric. At the same time, the excess heat in the heating chamber is passed downwards to the cord fabric to preheat the cord fabric, ensuring that the cord fabric has better tensile properties during impregnation and increasing the effective utilization of energy. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the apparatus for manufacturing the curtain fabric for an inflatable rubber ball according to the present invention.

[0039] Figure 2 This is a schematic diagram of the apparatus for manufacturing the curtain fabric for an inflatable rubber ball according to the present invention, without the frame.

[0040] Figure 3 This is a schematic diagram of the structure of the glue collection box and roller assembly of the present invention;

[0041] Figure 4 This is a schematic diagram of the adhesive scraping mechanism of the present invention;

[0042] Figure 5 This is a schematic diagram of the heating box of the present invention;

[0043] Figure 6 This is a cross-sectional view of the glue collection box of the present invention.

[0044] In the diagram: 1. Glue collection box; 2. Glue discharge port; 3. Rotating shaft; 4. Support; 5. Frame; 6. Curtain fabric; 7. Gear; 8. Motor; 9. Drive motor; 10. Water pump; 11. Blower; 12. Heating box; 13. Glue suction pipe; 14. Glue dipping tank; 15. Upper roller; 16. Lower roller; 17. Scraper; 18. Glue collection trough; 19. Extruder; 20. Glue discharge pipe; 21. Eccentric roller; 22. Support roller; 23. Roller 1; 24. Roller 2; 25. Scraper groove; 26. Glue scraper; 27. Glue collection pipe 2; 28. Glue collection pipe 1; 29. ​​Heating tube; 30. Roller assembly 1. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of the present invention. Figure 1-6 The technical solutions of the embodiments of the present invention will be clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0046] Example

[0047] like Figure 1-6 As shown, this embodiment provides an apparatus for manufacturing the fabric of an inflatable rubber ball, including a frame 5, an impregnation mechanism, a transmission mechanism, and a scraping mechanism mounted on the frame 5, characterized in that:

[0048] The glue-impregnation mechanism includes a glue collection box 1 and a glue-impregnation tank 14. Both the glue collection box 1 and the glue-impregnation tank 14 contain glue liquid. Under pressure, the glue liquid in the glue collection box 1 passes through the curtain fabric 6 and permeates into the glue-impregnation tank 14. The glue liquid in the glue-impregnation tank 14 acts on the curtain fabric 6 again by impregnation. Excess glue liquid in the glue-impregnation tank 14 is channeled into the glue collection box 1.

[0049] The transmission mechanism includes a roller assembly, a drive assembly for rotating the roller assembly, and a gear assembly. The roller assembly drives the curtain fabric 6 to move and can stretch the curtain fabric 6.

[0050] The adhesive scraping mechanism scrapes off the adhesive from the impregnated curtain fabric 6 and roller assembly, and then passes the scraped adhesive into the impregnation tank 14.

[0051] Using the above technical solution, the roller assembly can stretch the cord fabric 6, increasing the mesh size of the cord fabric 6 and allowing the adhesive to penetrate into it better. The cord fabric 6 is first impregnated with adhesive under pressure, followed by ordinary impregnation. This multiple impregnation process achieves a uniform and dense adhesive effect. After impregnation, excess adhesive on the cord fabric 6 and the roller assembly is scraped off by a scraping mechanism, ensuring a uniform thickness of the cord fabric 6. The scraped-off adhesive is recycled into the impregnation tank 14. When the adhesive level in the impregnation tank 14 exceeds a specified height, the excess adhesive is channeled into the collection box 1 for further recycling, improving raw material utilization and saving costs.

[0052] Specifically, such as Figure 1 As shown, the glue collection box 1 is located above the frame 5. An extruder 19 is provided on one side of the glue collection box 1. The extruder 19 is located above the curtain fabric 6. The glue collection box 1 is provided with a glue discharge port 2. The glue discharge port 2 is connected to the extruder 19 through a glue discharge pipe 20. The glue liquid in the glue collection box 1 enters the extruder 19 through the glue discharge pipe 20. Under the action of the extruder 19, the glue liquid is pressed onto the curtain fabric 6.

[0053] Adhesive liquid is introduced into the glue collection tank 1, and then enters the extruder 19 through the glue discharge port 2 and the glue discharge pipe 20. Under the action of the extruder 19, the cord fabric 6 is stretched, and the mesh size increases, allowing the adhesive liquid to be forced into the mesh size of the cord fabric 6. The extruder 19 is a twin-screw extruder 19, which is mounted on the frame 5. The outlet of the extruder 19 is located above the cord fabric 6, and the adhesive liquid extruded from the extruder 19 can act on the cord fabric 6. The glue collection tank 1 is designed on the frame 5, and the frame 5 is also equipped with a support plate, which is located above the cord fabric 6. The extruder 19 is mounted on the support plate.

[0054] In addition, the impregnation tank 14 includes an impregnation zone one and an impregnation zone two. The impregnation zone one is located above the impregnation zone two. The roller assembly divides the cord fabric 6 into multiple layers. The top layer of the cord fabric 6 is located in the impregnation zone one. The extruder 19 presses the adhesive onto the top layer of the cord fabric 6. The remaining layers of cord fabric 6 are located in the impregnation zone two. The adhesive liquid in the impregnation tank 14 is located in the impregnation zone two and is applied to the cord fabric 6 again by over-impregnation.

[0055] The top layer of the cord fabric 6 is located in the first impregnation zone. The adhesive liquid in the adhesive collection box 1 is applied to the top layer of the cord fabric 6 by the extruder 19. Then, driven by the roller assembly, it enters the second impregnation zone. The second impregnation zone is filled with adhesive liquid. The remaining multiple layers of cord fabric 6 move in the S direction in the second impregnation zone and are impregnated multiple times.

[0056] like Figure 3 As shown, the roller assembly includes a roller group 30 disposed at the inlet end of the frame 5, a roller group 2 disposed at the outlet end of the frame 5, and multiple rollers disposed in the impregnation tank 14. The multiple rollers divide the curtain fabric 6 into upper and lower layers. The two rollers located in the first impregnation zone have different diameters and stretch the curtain fabric 6. Two eccentric rollers 21 are provided in the second impregnation zone to stretch the curtain fabric 6 again.

[0057] Under the traction of roller assembly 30, the cord fabric 6 enters the impregnation tank 14, first entering the first impregnation zone. Driven by two rollers of different diameters, it is stretched. The roller 23 closer to roller assembly 30 has a smaller diameter and slower speed, while the roller 24 closer to roller assembly 2 has a larger diameter and faster speed. This stretches the cord fabric 6, increasing the mesh size. After being impregnated by the extruder 19, the cord fabric 6 enters the second impregnation zone under the drive of the cylinder assembly. The second impregnation zone is equipped with two eccentric rollers 21, which are located above the upper layer of cord fabric 6 in the second impregnation zone. These rollers press down and stretch the cord fabric 6. At the same time, a support roller 22 is also provided below the cord fabric 6, which also increases the mesh size of the cord fabric 6 and provides a better impregnation effect. Alternatively, multiple rollers can be set in the second impregnation zone, and the cord fabric 6 can rotate along the rollers in multiple layers for multiple impregnations. Finally, it is output along roller assembly 2. Figure 3 The machine also includes multiple rollers for changing the direction of rotation of the curtain fabric 6, which will not be described in detail here. All rollers are connected to the frame 5 via bearings.

[0058] The drive assembly includes several motors 8 that drive the rotation of the second roller assembly and the rollers. The gear assembly includes several gears 7 that are connected for transmission between adjacent rollers. The rotation of the second roller assembly and the rollers is driven by the motors 8 and transmitted through the gears 7. Figure 1 As shown, there are three motors 8, which are used to drive the second roller group, the first roller 23 and the support roller 22 respectively. They are connected to the other rollers through gears 7. Of course, other numbers of motors 8 can also be designed.

[0059] Specifically, such as Figure 4As shown, the glue scraping mechanism includes a glue scraper 26 disposed in the glue dipping tank 14 near the outlet end, a scraper 17 groove disposed on the roller assembly 2, and a scraper 17. The glue scraper 26 is located on the upper and lower sides of the curtain fabric 6, and the glue scraped off the curtain fabric 6 flows into the glue dipping tank 14. The roller assembly 2 includes an upper roller 15 and a lower roller 16. The scraper 17 groove is disposed on one side of the upper roller 15, and the scraper 17 is disposed at the lower part of the lower roller 16. The lower part of the scraper 17 is provided with a glue collection groove 18, which is connected to the glue dipping tank 14 through a glue collection pipe 28. Below the scraper 17 groove is a glue collection pipe 27, which is connected to the glue collection pipe 28.

[0060] The adhesive scraped off the lower roller 16 flows into the adhesive collection tank 18, and then into the dip tank 14 through the adhesive collection pipe 28. The adhesive scraped off the upper roller 15 flows into the groove of the scraper 17, enters the adhesive collection pipe 28 through the adhesive collection pipe 27, and flows into the dip tank 14.

[0061] Excess adhesive on the fabric 6 is scraped off by the scraper blade 26. The distance between the scraper blades 26 on both sides of the fabric 6 is adjustable, which can adjust the adhesive thickness of the fabric 6. The scraper blades also remove adhesive from the upper roller 15 and lower roller 16 to prevent slippage of the fabric 6 as it passes through, thus affecting the adhesive quality. The groove of the scraper blade 17 and the adhesive collection groove 18 are both designed between the frames 5. Two scraper blades 26 are designed on each side of the fabric 6, and the two scraper blades 26 are connected by screws. The distance between the two scraper blades 26 can be adjusted by adjusting the distance between the screws, thus adjusting the adhesive thickness. The screws at both ends are connected to the frame 5 by connecting blocks.

[0062] In addition, a suction pipe 13 is connected between the impregnation tank 14 and the collection box 1. A water pump 10 is installed on the suction pipe 13 to suck excess glue in the impregnation tank 14 into the collection box 1.

[0063] The dip tank 14 is equipped with a height line located in the second dip zone. When the liquid level of the adhesive is higher than the height line, the water pump 10 is started to suck the excess adhesive into the collection tank 1 for recycling.

[0064] As a preferred embodiment of this invention, such as Figure 1 and 6As shown, the glue collection box 1 is equipped with a heating tube 29 inside to heat the glue liquid in the glue collection box 1. A blower 11 and a heating box 12 are provided below the glue collection box 1. The heating box 12 is located above the curtain fabric 6. Under the blowing of the blower 11, heat enters the heating box 12 and the heating box 12 heats the glue liquid in the glue collection box 1. The remaining heat is passed downward into the curtain fabric 6 to preheat the curtain fabric 6.

[0065] Heating tube 29 is located at the bottom of the glue collection tank 1 to heat the glue liquid. Blower 11 and heating chamber 12 are located below the glue collection tank 1. Hot air delivered by blower 11 enters the heating chamber 12, also heating the glue liquid to ensure sufficient fluidity and provide a better liquid state for subsequent impregnation of the cord fabric 6. At the same time, excess heat in the heating chamber 12 is passed downwards into the cord fabric 6 to preheat it, ensuring better tensile properties during impregnation and effectively utilizing energy.

[0066] like Figure 5 As shown, the heating box 12 has a pipe that leads to the hollow heat dissipation plate below. The heat dissipation plate has multiple heat dissipation holes located above the curtain cloth 6 to preheat the curtain cloth 6.

[0067] The glue collection box 1 is provided with multiple glue discharge ports 2. Each glue discharge port 2 is connected to an extruder 19 through the glue discharge pipe 20. The multiple extruders 19 are connected by a bracket 4 and a rotating shaft 3 and are driven by a drive motor 9.

[0068] Multiple extruders 19 are configured to simultaneously press the adhesive onto the fabric 6. Each extruder 19 is driven by a single drive motor 9. This requires a bracket 4 and a rotating shaft 3 to connect the multiple extruders 19. The bracket 4 supports the rotating shaft 3, and the rotating shaft 3 is connected to each of the extruders 19 via gears 7, all driven by the drive motor 9. In this embodiment, three extruders 19 are designed, but other numbers are also possible.

[0069] The manufacturing process of the curtain fabric 6 used for the inflatable rubber ball includes the following steps:

[0070] 1. Check that sufficient glue has been injected into the second impregnation zone of the glue collection box 1 and the impregnation tank 14. Turn on the heating tube 29 and the blower 11 to heat the glue in the impregnation tank.

[0071] 2. The heating box 12 preheats the cord fabric 6 and starts multiple motors 8 that drive the roller assembly to rotate. The cord fabric 6 begins to move under the action of the rollers. At the same time, the drive motor 9 that drives the extruder 19 is started. The glue in the glue collection box 1 enters the extruder 19 through the glue discharge pipe 20. Under the action of the extruder 19, the glue is pressed into the cord fabric 6 located in the first impregnation zone. Two rollers with different diameters in the first impregnation zone stretch the cord fabric 6. Two eccentric rollers 21 are provided in the second impregnation zone to stretch the cord fabric 6 again. The cord fabric 6 is impregnated in the second impregnation zone.

[0072] 3. After impregnation, excess adhesive on the curtain fabric 6 is scraped off by the glue scraper 26 and flows into the impregnation tank 14. Adhesive scraped off from the lower roller 16 of the roller group 2 flows into the glue collection tank 18 and into the impregnation tank 14 through the glue collection pipe 1 28. Adhesive scraped off from the upper roller 15 flows into the groove of the scraper 17, enters the glue collection pipe 1 28 through the glue collection pipe 2 27, and flows into the impregnation tank 14.

[0073] 4. When the liquid level of the glue in the dipping tank 14 reaches the specified height, start the water pump 10 to suck the glue in the dipping tank 14 above the specified liquid level into the glue collection box 1 through the glue suction pipe 13.

[0074] 5. After the impregnation is completed, turn off all motors 8, drive motor 8, heating tube 29 and blower 11.

[0075] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An apparatus for manufacturing the fabric of an inflatable rubber ball, comprising a frame, an impregnation mechanism, a transmission mechanism, and a scraping mechanism mounted on the frame, characterized in that: The glue-impregnation mechanism includes a glue collection box and a glue-impregnation tank. Both the glue collection box and the glue-impregnation tank contain glue liquid. Under pressure, the glue liquid in the glue collection box passes through the curtain fabric and permeates into the glue-impregnation tank. The glue liquid in the glue-impregnation tank acts on the curtain fabric again by impregnation. Excess glue liquid in the glue-impregnation tank is channeled into the glue collection box. The transmission mechanism includes a roller assembly, a drive assembly for rotating the roller assembly, and a gear assembly. The roller assembly drives the curtain fabric to move and can stretch the curtain fabric. The adhesive scraping mechanism scrapes off the adhesive from the impregnated curtain fabric and roller assembly, and then passes the scraped adhesive into the impregnation tank. The glue collection box is located above the frame, and an extruder is provided on one side of the glue collection box. The extruder is located above the curtain fabric. The glue collection box is provided with a glue discharge port, which is connected to the extruder through a glue discharge pipe. The glue in the glue collection box enters the extruder through the glue discharge pipe, and the extruder forces the glue onto the curtain fabric. The impregnation tank includes an impregnation zone one and an impregnation zone two. The impregnation zone one is located above the impregnation zone two. The roller assembly divides the cord fabric into multiple layers. The top layer of the cord fabric is located in the impregnation zone one. The extruder presses the adhesive onto the top layer of the cord fabric. The remaining layers of cord fabric are located in the impregnation zone two. The adhesive liquid in the impregnation tank is located in the impregnation zone two and is applied to the cord fabric again by impregnation. The roller assembly includes a roller group one disposed at the inlet end of the frame, a roller group two disposed at the outlet end of the frame, and multiple rollers disposed in the impregnation tank. The multiple rollers divide the curtain fabric into upper and lower layers. The two rollers located in the first impregnation zone have different diameters and stretch the curtain fabric. Two eccentric rollers are provided in the second impregnation zone to stretch the curtain fabric again.

2. The apparatus for manufacturing the curtain fabric for an inflatable rubber ball as described in claim 1, characterized in that: The drive assembly includes several motors that drive the second roller assembly and the rollers to rotate, and the gear assembly includes several gears that are connected in transmission between two adjacent rollers.

3. The apparatus for manufacturing the curtain fabric for an inflatable rubber ball as described in claim 2, characterized in that: The glue scraping mechanism includes a glue scraper knife disposed in the glue impregnation tank near the outlet end, a scraper groove disposed on the roller assembly two, and a scraper knife. The glue scraper knife is located on the upper and lower sides of the curtain fabric, and the glue scraped off the curtain fabric flows into the glue impregnation tank. The roller assembly two includes an upper roller and a lower roller. The scraper groove is disposed on one side of the upper roller, and the scraper knife is disposed at the lower part of the lower roller. A glue collection groove is provided at the lower part of the scraper knife. The glue collection groove is connected to the glue impregnation tank through a glue collection pipe one. A glue collection pipe two is provided below the scraper groove, and the glue collection pipe two is connected to the glue collection pipe one. The adhesive scraped off the lower roller flows into the adhesive collection tank, and then flows into the adhesive dipping tank through the adhesive collection pipe one. The adhesive scraped off the upper roller flows into the scraper groove, and then enters the adhesive collection pipe one through the adhesive collection pipe two, and flows into the adhesive dipping tank.

4. The apparatus for manufacturing the curtain fabric for an inflatable rubber ball as described in claim 3, characterized in that: A suction pipe is connected between the impregnation tank and the collection box. A water pump is installed on the suction pipe to suck excess glue from the impregnation tank into the collection box.

5. The apparatus for manufacturing the curtain fabric for an inflatable rubber ball as described in claim 4, characterized in that: The glue collection box is equipped with a heating tube inside to heat the glue liquid inside the box. A blower and a heating box are located below the glue collection box. The heating box is positioned above the curtain fabric. Under the blowing of the blower, heat enters the heating box and heats the glue liquid inside the box. The remaining heat is passed downwards into the curtain fabric to preheat it.

6. The apparatus for manufacturing the curtain fabric for an inflatable rubber ball as described in claim 5, characterized in that: The glue collection box is provided with multiple glue discharge ports. Each glue discharge port is connected to an extruder through a glue discharge pipe. The multiple extruders are connected by a bracket and a rotating shaft and are driven by a drive motor.

7. A process for manufacturing a curtain fabric for an inflatable rubber ball as described in claim 6, characterized in that: Includes the following steps: (1) Check that sufficient glue liquid has been injected into the second impregnation zone of the glue collection box and the impregnation tank, and turn on the heating pipe and blower to heat the glue liquid in the impregnation tank; (2) The heating box preheats the curtain fabric, and starts multiple motors that drive the roller assembly to rotate. The curtain fabric begins to move under the action of the rollers. At the same time, the drive motor that drives the extruder is started. The glue in the glue collection box enters the extruder through the glue discharge pipe. Under the action of the extruder, the glue is pressed to the curtain fabric located in the first impregnation zone. Two rollers with different diameters in the first impregnation zone stretch the curtain fabric. Two eccentric rollers are located in the second impregnation zone to stretch the curtain fabric again. The curtain fabric is impregnated in the second impregnation zone. (3) After impregnation, excess adhesive on the curtain fabric is scraped off by the scraper and flows into the impregnation tank. The adhesive scraped off from the lower roller of roller group two flows into the collection tank and into the impregnation tank through collection pipe one. The adhesive scraped off from the upper roller flows into the scraper groove, enters collection pipe one through collection pipe two, and flows into the impregnation tank. (4) When the liquid level of the glue in the dipping tank reaches the specified height, start the water pump and suck the glue in the dipping tank that is above the specified liquid level into the glue collection box through the glue suction pipe. (5) After the impregnation is completed, turn off all motors, drive motors, heating tubes and blowers.

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