Artificial leather preparation device for volleyball production

Abstract

The utility model discloses a kind of artificial leather preparation devices for volleyball production, belong to the field of sports goods production, including workbench, several groups of support frame are fixedly arranged on workbench, one group of support frame is rotatably provided with lower roll, telescopic rod is fixedly arranged above lower roll, the telescopic end of telescopic rod is fixedly arranged with moving frame, moving frame bottom end is rotatably provided with upper roll, oil passage is fixedly arranged in the inside of upper roll, rotating bearing is fixedly arranged at the both ends of oil passage, rotating bearing other end is respectively communicated and arranged with oil delivery hose, oil delivery hose other end is respectively communicated and connected with oil temperature machine, the inner wall and outer wall of upper roll are respectively provided with pressure sensor and embossing outer mould, temperature sensor is fixedly arranged above upper roll, infrared heater is arranged on the side close to unwinding end, electric sliding rail is also fixedly arranged on workbench, guide roller is movably arranged on electric sliding rail, photoelectric sensor is arranged on the side of guide roller.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment manufacturing, specifically to an apparatus for preparing artificial leather for volleyball production. Background Technology

[0002] Volleyballs use synthetic materials such as PVC and PU as their main material, which has significant advantages over traditional natural leather or other materials, making them particularly suitable for the needs of modern competitive and mass sports.

[0003] The synthetic leather surface undergoes coating and embossing, resulting in excellent abrasion resistance, making it suitable for the high-friction nature of volleyball. The base fabric, such as a polyester mesh, enhances tensile strength, making it less prone to breakage from spikes or impacts, and its lifespan is 2-3 times that of natural leather. It does not absorb water, so its performance is unaffected by rain or wet surfaces (unlike natural leather, which easily absorbs water and becomes heavier). It is UV resistant and withstands high and low temperatures, making it suitable for various indoor and outdoor surfaces. The embossing process precisely controls the surface particles, optimizing slip resistance and feel. Different hardness levels are achieved by adjusting the PVC / PU formula (such as the plasticizer ratio), balancing elasticity and feel.

[0004] The manufacturing process of artificial leather includes key steps such as base fabric treatment, coating, embossing, and finishing. In the embossing step, a two-roller embossing machine is usually used to emboss the artificial leather. The upper roller is made of steel with engraved patterns, and the lower roller is made of silicone for cushioning.

[0005] Traditional embossing machines lack a correction system, which cannot ensure that the artificial leather will not shift when it is conveyed to the lower roller, resulting in inaccurate embossing. Furthermore, the artificial leather is not preheated during the actual embossing process, making it impossible to control the temperature of the embossing roller and maintain it at a suitable embossing temperature. Consequently, both embossing efficiency and embossing effect are low. Utility Model Content

[0006] To address the technical problems of traditional embossing machines lacking a correction system, which prevents artificial leather from shifting when conveyed to the lower roller, resulting in inaccurate embossing, and the lack of preheating of the artificial leather during formal embossing, making it impossible to control the temperature of the embossing roller and maintain it at a suitable embossing temperature, this utility model provides an artificial leather preparation device for volleyball production.

[0007] A device for preparing artificial leather for volleyball production includes a worktable with several sets of support frames fixedly mounted on it. A lower roller is rotatably mounted on one set of support frames, and a telescopic rod is fixedly mounted above the lower roller. A movable frame is fixedly mounted at the telescopic end of the telescopic rod, and an upper roller is rotatably mounted at the bottom of the movable frame. An oil passage is fixedly mounted inside the upper roller, and rotary bearings are fixedly mounted at both ends of the oil passage. Oil delivery hoses are respectively connected to the other ends of the rotary bearings and are respectively connected to an oil temperature controller. Pressure sensors and embossing molds are respectively mounted on the inner and outer walls of the upper roller. A temperature sensor is fixedly mounted above the upper roller, and an infrared heater is mounted near the unwinding end. An electric slide rail is also fixedly mounted on the worktable, and a guide roller is movably mounted on the electric slide rail. A photoelectric sensor is mounted on the side of the guide roller.

[0008] Furthermore, there are two electric slide rails, which are fixedly installed on the side near the unwinding end and the rewinding end, respectively. The top wall of the slider in the electric slide rail is fixedly equipped with a mounting frame, the guide roller is rotatably mounted on the mounting frame, and the photoelectric sensor is fixedly mounted on the inner wall of the support frame on the side of the guide roller.

[0009] Furthermore, an infrared heater is fixedly installed on the bottom wall of the support frame between the guide roller and the upper roller, which can preheat the artificial leather body below.

[0010] Furthermore, the oil temperature controller and the telescopic rod are fixedly installed on the outer top wall and inner top wall of the support frame, respectively. Limit grooves are fixedly installed on the inner walls on both sides of the support frame, and the movable frame is movably installed inside the limit grooves on both sides through connecting blocks.

[0011] Furthermore, the temperature sensor is fixedly installed on the inner top wall of the moving frame, and bearing seats are fixedly installed on both side walls of the moving frame. The rotating bearing is installed on the bearing seats, and the servo motor is installed on the outer wall of the support frame through the mounting bracket. The upper roller is fixedly installed on the output end of the servo motor.

[0012] Furthermore, there are two oil delivery hoses, with their bottom ends rotatably connected to the rotary bearings, and their top ends penetrating the top wall of the support frame and connecting to the oil inlet and outlet of the oil temperature controller. A circulation pump is also installed on the oil delivery hoses.

[0013] Furthermore, the embossing outer mold is installed on the outer wall of the upper roller by bolt fasteners, and the two ends of the lower roller are rotatably set on the inner side wall of the support frame. Scale lines are set on the outer wall of the support frame next to the limit groove.

[0014] Compared with existing technologies, the advantages of this invention are as follows: By combining photoelectric sensors and electric slide rails with the adaptive mode of the PLC control system on the device, the artificial leather body can be corrected to avoid deviation during conveying, which would lead to inaccurate embossing. Before embossing, an infrared heater is used to preheat the artificial leather body to accelerate the heating rate. During the embossing process, the PLC control system, along with temperature and pressure sensors, integrates temperature and pressure closed-loop control, enabling the device to achieve automated embossing settings. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a side view of part of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of part A of the structure of this utility model;

[0019] Figure 5 This is a schematic diagram of part B of the structure of this utility model;

[0020] Figure 6 This is a schematic diagram of part C of the present invention;

[0021] Figure 7 This is a schematic diagram of part of the structure of this utility model (D).

[0022] In the diagram: 1. Workbench; 2. Support frame; 3. Lower roller; 4. Moving frame; 5. Telescopic rod; 6. Upper roller; 7. Oil passage; 8. Rotary bearing; 9. Oil hose; 10. Oil temperature controller; 11. Pressure sensor; 12. Embossing mold; 13. Temperature sensor; 14. Infrared heater; 15. Electric slide rail; 16. Guide roller; 17. Photoelectric sensor; 18. Mounting frame; 19. Artificial leather body; 20. Limiting groove; 21. Bearing seat; 22. Servo motor; 23. Circulating pump; 24. Scale line. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Additionally, the term "multiple" should mean two or more.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The following will refer to the accompanying drawings. Figures 1-7 The present invention will be described in detail with reference to the embodiments.

[0028] A device for preparing artificial leather for volleyball production includes a workbench 1, on which several sets of support frames 2 are fixedly installed. The two ends of the workbench 1 are respectively connected to the unwinding end and the rewinding end of the artificial leather preparation process. This allows the unwound artificial leather body 19 to pass through guide rollers 16 for correction, undergo preheating and embossing, and finally be rewound by the rewinding end. An electric slide rail 15 is also fixedly installed on the workbench 1, on which guide rollers 16 are movably mounted. A photoelectric sensor 17 is installed on the side of the guide rollers 16. The photoelectric sensor 17 is a reflective sensor, as described in the prior art. The emitted light beam is reflected by the edge of the artificial leather body 19, and the edge position is determined by the change in the intensity of the reflected light to achieve the correction purpose.

[0029] There are two electric slide rails 15, which are fixedly installed on the side near the unwinding end and the winding end respectively. The top wall of the slider in the electric slide rail 15 is fixedly provided with a mounting frame 18, the guide roller 16 is rotatably mounted on the mounting frame 18, and the photoelectric sensor 17 is fixedly installed on the inner side wall of the support frame 2 on the side of the guide roller 16.

[0030] The device is also equipped with a PLC control system, which has an adaptive module. The photoelectric sensor 17 senses the changes in the edge of the artificial leather body 19, and controls the slider to move in the electric slide rail 15, which in turn drives the mounting frame 18 to move, that is, drives the artificial leather body 19 on the guide roller 16 to translate, so as to adjust it to the correct position of the preset embossing, and finally achieve the purpose of correction.

[0031] An infrared heater 14 is installed near the unwinding end. The infrared heater 14 is fixedly mounted on the bottom wall of the support frame 2 between the guide roller 16 and the upper roller 6, and can preheat the artificial leather body 19 below. Connecting the infrared heater 14 to an external power source allows the corrected artificial leather body 19 to receive preheating from infrared radiation. Infrared radiation can directly heat the surface or interior of the leather, softening it and reaching a suitable embossing temperature, thereby improving the consistency of embossing depth and the clarity of the pattern.

[0032] One of the support frames 2 is equipped with a lower roller 3, which is rotatably mounted on the inner side wall of the support frame 2 at both ends. The preheated artificial leather body 19 is continuously conveyed to the upper roller 3, and the embossing purpose is achieved in conjunction with the downward pressure of the upper roller 6.

[0033] An oil passage 7 is fixedly installed inside the upper roller 6. Rotary bearings 8 are fixedly installed at both ends of the oil passage 7. Oil hoses 9 are respectively connected to the other end of the rotary bearings 8. The other end of the oil hoses 9 are respectively connected to the oil temperature controller 10. The oil temperature controller 10 is fixedly installed on the outer top wall of the support frame 2. There are two oil hoses 9. Their bottom ends are respectively rotatably connected to the rotary bearings 8. Their top ends pass through the top wall of the support frame 2 and are connected to the oil inlet and oil outlet of the oil temperature controller 10. A circulation pump 23 is also installed on the oil hoses 9.

[0034] Before embossing, the oil temperature controller 10 is turned on. The oil temperature controller 10 is a temperature control device designed specifically for roller equipment in the prior art. It achieves uniform temperature control of the roller surface by circulating heat transfer oil. When the heat transfer oil in the oil temperature controller 10 reaches the preset temperature, the circulation pump 23 is started, so that the heat transfer oil can enter the oil passage 7 through the oil delivery hose 9. The oil passage 7 is preferably a spiral structure. The heat generated by the heat transfer oil is transferred to the artificial leather body 19 through the upper roller 6 cylinder wall and the embossing outer mold 12 to achieve high-temperature embossing.

[0035] Since a temperature sensor 13 is fixedly installed above the upper roller 6, and the temperature sensor 13 is fixedly installed on the inner top wall of the movable frame 4, it can be connected to the PLC control system. When the temperature sensed by the temperature sensor 13 is lower than the preset temperature, the circulating pump 23 is controlled so that the heat transfer oil can be circulated back to the oil temperature controller 10 for heating, realizing automatic temperature control, so that the upper roller 6 can always be kept at the required temperature. The suitable temperature for PVC artificial leather is between 160 and 190°C, and the suitable temperature for PU artificial leather is between 180 and 210°C.

[0036] A telescopic rod 5 is fixedly installed above the lower roller 3. The telescopic rod 5 is fixedly installed on the inner top wall. A movable frame 4 is fixedly installed at the telescopic end of the telescopic rod 5. An upper roller 6 is rotatably installed at the bottom end of the movable frame 4. Limiting grooves 20 are fixedly installed on the inner walls on both sides of the support frame 2. The movable frame 4 is movably installed inside the limiting grooves 20 on both sides through connecting blocks.

[0037] During embossing, the telescopic rod 5 is activated. The telescopic rod 5 is an electrically driven telescopic rod that can be connected to the PLC control system. The automation module of the control system controls the telescopic rod 5 to move up and down, causing it to drive the moving frame 4 to move down along the limit groove 20 and approach the artificial leather body 19 for automated embossing.

[0038] Since bearing seats 21 are fixedly installed on both sides of the movable frame 4, and the rotary bearing 8 is installed on the bearing seats 21, a servo motor 22 is installed on the outer wall of the support frame 2 via a mounting bracket, and the upper roller 6 is fixedly installed on the output end of the servo motor 22. Starting the servo motor 22 can drive the lower roller 3 to rotate. Due to the installation of the rotary bearing 8, it can be ensured that the rotation of the lower roller 3 will not affect the delivery of heat transfer oil by the oil delivery hose 9.

[0039] Pressure sensor 11 and embossing mold 12 are respectively installed on the inner and outer walls of the upper roller 6. During the embossing process, the pressure sensed by the pressure sensor 11 is compared with the appropriate pressure value preset in the PLC control system, and the embossing pressure is adjusted accordingly to keep the pressure in a fixed value in the range of 8 to 12 MPa. The embossing time is preferably 2 to 5 seconds.

[0040] The embossing outer mold 12 is installed on the outer wall of the upper roller 6 by bolt fasteners. Holes are drilled and tapped on the surface of the upper roller 6. Corresponding screw holes are machined on the back of the embossing outer mold 12 and fixed with high-strength internal hex bolts. The bolt heads need to be sunk into the mold to avoid scratching the material. The embossing outer mold 12 is provided with hemispherical raised anti-slip particles and grooves to enhance ball control friction.

[0041] The support frame 2 next to the limiting groove 20 has a scale line 24 on its outer wall, which can indicate the distance between the upper roller 6 and the lower roller 3 to adapt to the embossing needs of artificial leather body 19 of different thicknesses.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for preparing artificial leather for volleyball production, comprising a workbench (1), characterized in that: Several sets of support frames (2) are fixedly installed on the workbench (1). A lower roller (3) is rotatably installed on one set of support frames (2). A telescopic rod (5) is fixedly installed above the lower roller (3). A movable frame (4) is fixedly installed at the telescopic end of the telescopic rod (5). An upper roller (6) is rotatably installed at the bottom of the movable frame (4). An oil passage (7) is fixedly installed inside the upper roller (6). Rotary bearings (8) are fixedly installed at both ends of the oil passage (7). Oil hoses (9) are respectively connected to the other end of the rotary bearings (8). The other end of the oil hose (9) is connected to the oil temperature controller (10). The inner and outer walls of the upper roller (6) are respectively equipped with a pressure sensor (11) and an embossing mold (12). A temperature sensor (13) is fixedly installed above the upper roller (6). An infrared heater (14) is installed near the unwinding end. An electric slide rail (15) is also fixedly installed on the worktable (1). A guide roller (16) is movably installed on the electric slide rail (15). A photoelectric sensor (17) is installed on the side of the guide roller (16).

2. The artificial leather preparation device for volleyball production according to claim 1, characterized in that: There are two electric slide rails (15), which are fixedly installed on the side near the unwinding end and the rewinding end respectively. The top wall of the slider in the electric slide rail (15) is fixedly provided with a mounting frame (18), the guide roller (16) is rotatably installed on the mounting frame (18), and the photoelectric sensor (17) is fixedly installed on the inner wall of the support frame (2) on the side of the guide roller (16).

3. The artificial leather preparation device for volleyball production according to claim 1, characterized in that: An infrared heater (14) is fixedly installed on the bottom wall of the support frame (2) between the guide roller (16) and the upper roller (6), which can preheat the artificial leather body (19) below.

4. The artificial leather preparation device for volleyball production according to claim 1, characterized in that: The oil temperature controller (10) and the telescopic rod (5) are fixedly installed on the outer top wall and inner top wall of the support frame (2), respectively. The inner walls on both sides of the support frame (2) are fixedly provided with limit grooves (20), and the movable frame (4) is movably installed inside the limit grooves (20) through connecting blocks on both sides.

5. The artificial leather preparation device for volleyball production according to claim 4, characterized in that: Temperature sensor (13) is fixedly installed on the inner top wall of the movable frame (4). Bearing seats (21) are fixedly installed on both sides of the movable frame (4). Rotary bearing (8) is installed on the bearing seat (21). Servo motor (22) is installed on the outer wall of the support frame (2) through the mounting frame. Upper roller (6) is fixedly installed on the output end of servo motor (22).

6. The apparatus for preparing artificial leather for volleyball production according to claim 5, characterized in that: There are two oil hoses (9), the bottom ends of which are rotatably connected to the rotary bearing (8), and the top ends of which pass through the top wall of the support frame (2) and are connected to the oil inlet and outlet of the oil temperature controller (10). A circulation pump (23) is also installed on the oil hose (9).

7. The artificial leather preparation device for volleyball production according to claim 6, characterized in that: The embossing outer mold (12) is installed on the outer wall of the upper roller (6) by bolt fasteners, and the two ends of the lower roller (3) are rotatably set on the inner side wall of the support frame (2). The outer wall of the support frame (2) next to the limiting groove (20) is provided with scale lines (24).

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