Position adjusting device for a ball to be filled, filling apparatus and filling method

Abstract

The present application relates to nanometer energy-absorbing material filling technology field, especially in kind be filled ball position adjusting device, filling equipment and filling method, including arc pit, the arc surface of arc pit is provided with several suspension nozzles and several posture adjusting rollers, the suspension nozzle is connected with gas generating mechanism, realizes the ball to be filled to be blown to the suspended state, makes the one end of the ball to be filled with one-way valve rotate to the bottom end, the posture adjusting roller is connected with motor, the motor is used for driving posture adjusting roller rotation realizes the ball to be filled with one-way valve one end needs to rotate to the bottom end after the ball to be filled is rotated 180 DEG, realizes the one-way valve is adjusted to the top end, without manual adjustment the position of the ball to be filled, further realizes the full automation of nanometer material filling, improves production efficiency, reduces the labor intensity of workers, solves the problem of low production efficiency and high labor intensity in the prior art.

Description

Technical Field

[0001] This invention relates to the field of nano-energy-absorbing material filling technology, specifically to a device for adjusting the position of a ball to be filled, a filling equipment, and a filling method. Background Technology

[0002] Nanomaterials, as a novel type of energy-absorbing material, can achieve an energy absorption density exceeding 30 J / g, which is tens to hundreds of times higher than that of traditional energy-absorbing materials. Nanomaterials are typically homogeneous, flowable, non-Newtonian liquids. To fully utilize their energy absorption advantages, the energy-absorbing structure of the finished product is crucial. Based on scientific design and simulation calculations, nanomaterials are primarily encapsulated in spherical packaging modules. (See...) Figure 1 This is a structural diagram of a nano-energy-absorbing sphere in the prior art. The sphere is filled with nano-energy-absorbing material and has a one-way valve on it.

[0003] Currently, while automated filling equipment has emerged for existing nano-energy-absorbing material filling processes, certain technical challenges remain. Chinese patent CN113002828A discloses a nano-energy-absorbing material filling system and its process method. This method not only improves production efficiency and reduces manual labor intensity but also enhances the quality of the final filled product, making it suitable for mass production. However, this technical solution still requires manual positioning of the filling balls. Due to the large number of balls to be filled during the filling process, manual positioning and orientation adjustment reduces production efficiency and increases labor intensity. Existing technologies employ orientation adjustment methods, such as using lidar or video recognition, but these methods are ineffective when the filling balls are non-transparent or coated with polyurea material, making one-way valves unable to identify them. This leads to inaccurate positioning, rendering lidar or optical recognition systems unsuitable for orientation adjustment during filling production. This is why existing technologies still require manual identification and positioning of the nano-energy-absorbing balls. Summary of the Invention

[0004] To address the problems of low production efficiency and high labor intensity caused by manual posture adjustment in existing technologies, this invention provides a device for adjusting the position of the ball to be filled, a filling equipment, and a filling method.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] The present invention provides a position adjustment device for a ball to be filled, including an arc-shaped indentation, wherein the ball to be filled is placed in the arc-shaped surface of the arc-shaped indentation; a plurality of suspension nozzles and a plurality of attitude adjustment rollers are provided on the arc-shaped surface of the arc-shaped indentation.

[0007] The suspension nozzle is connected to a gas generating mechanism for venting the suspension nozzle, blowing the ball to be filled into a suspended state, and causing the end of the ball to be filled with a one-way valve to rotate to the bottom.

[0008] The attitude adjustment roller is connected to an electric motor, which drives the attitude adjustment roller to rotate, rotating the ball to be filled by 180°.

[0009] Furthermore, the suspended nozzle includes an air outlet channel, and an air intake channel is provided outside the air outlet channel. The air outlet channel and the air intake channel are concentrically arranged. The extended lines of the two side walls of the air outlet channel intersect at a point, and the intersection point of the extended lines of the two side walls of the air outlet channel deviates from the geometric center of the ball to be filled by less than 5mm.

[0010] Furthermore, the inner cavity of the air intake channel is connected to a mounting bracket, and a flexible ventilation component is provided on the mounting bracket;

[0011] The mounting bracket includes a support portion connected to the inner cavity of the air intake channel, and a connecting portion connected to the inner wall of the support portion; the connecting portion includes a first connecting portion connected to the support portion, the first connecting portion being provided with a second connecting portion, the first connecting portion and the second connecting portion being concentrically arranged, and the first connecting portion and the second connecting portion being fixedly connected by a plurality of fixing components; the second connecting portion is fitted and connected to the outer wall of the air intake channel.

[0012] The cross-section of the flexible ventilation component includes an arc-shaped inclined surface, a right-angled side, and a right-angled bottom. The right-angled side is provided with a recessed portion, which is connected to the support portion. The right-angled side is connected to the upper surface of the connecting portion.

[0013] Furthermore, the length of the bottom right-angled side is greater than that of the side right-angled side; the height of the support part is greater than or equal to 1 / 2 of the length of the side right-angled side; the radius r0 of the arc-shaped inclined surface and the width L0 of the end of the air intake channel satisfy: r0>1.5L0.

[0014] Preferably, the positions where the suspending nozzle and the attitude-adjusting roller connect to the arc-shaped pit are both located on the same horizontal plane, the deviation between the intersection of the extended axes of the suspending nozzle and the center of the spheres to be filled is <5mm, and the deviation between the intersection of the extended centerline of the attitude-adjusting roller and the center of the spheres to be filled is <5mm; the intersection of the extended centerline of the attitude-adjusting roller and the intersection of the extended axis of the suspending nozzle are the same intersection point o.

[0015] The distances L1 between the intersection point o and the top of the suspension nozzle, L2 between the intersection point o and the top of the attitude adjustment roller, and L3 between the intersection point o and the upper end of the support portion satisfy the following:

[0016] Preferably, the attitude adjustment roller is connected to the arc-shaped pit through a roller bracket, and the roller is provided with an arc-shaped concave surface that fits against the spherical surface of the ball to be filled.

[0017] A filling device including the aforementioned position adjustment device for the balls to be filled further includes a circulating conveyor belt and a control system. The arc-shaped pits are evenly distributed on the circulating conveyor belt. A filling mechanism is arranged above the circulating conveyor belt, and the filling mechanism is connected to a buffer tank and a vacuum system. The buffer tank is connected to a storage tank through a feeding mechanism, and the storage tank is filled with nano-energy-absorbing material. The position adjustment device, the circulating conveyor belt, the vacuum system, and the feeding mechanism are electrically or communicatively connected.

[0018] Furthermore, the filling mechanism includes a Z-axis lifting structure and an injection needle. The injection needle is connected to the moving end of the Z-axis lifting structure. The injection needle is connected to a buffer tank and a vacuum system via a three-way valve. A recovery tank is also provided between the vacuum system and the three-way valve. A first switch is provided between the three-way valve and the buffer tank. A second switch is provided between the three-way valve and the recovery tank.

[0019] Furthermore, the buffer tank has a built-in stirring mechanism; the tank body is a cylindrical shell, the middle part connected to the cylindrical shell is an upward-facing horn-shaped shell, and the lower part connected to the horn-shaped shell is a cylindrical shell; the blades of the stirring mechanism are provided with inclined plates at their distal ends; when the stirring mechanism rotates, the nano-energy-absorbing material rises from the side of the buffer tank body and flows down from the middle of the buffer tank body, forming a circulation.

[0020] A filling method using the above-mentioned filling equipment includes the following steps:

[0021] Place the nano-energy-absorbing material inside the storage tank;

[0022] The nano-energy-absorbing material inside the storage tank is transported to the buffer tank until the pressure inside the buffer tank reaches the target value.

[0023] Place the ball to be filled on the arc-shaped pit and adjust its posture, adjusting the end of the ball with the one-way valve to the top.

[0024] After the orientation adjustment of the filling ball is completed, the filling ball is vacuumed.

[0025] The spheres to be filled after vacuuming are filled to the preset amount of nano-energy-absorbing material, thus completing the filling process.

[0026] To achieve the above objectives, the present invention employs the following technical solution:

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] This invention provides a device for adjusting the position of a ball to be filled, including an arc-shaped indentation where the ball to be filled is placed within the arc-shaped surface. Several suspending nozzles and several adjusting rollers are arranged on the arc-shaped surface of the indentation. The suspending nozzles are connected to a gas generating mechanism to blow the ball to be filled into a suspended state, causing the end of the ball with the one-way valve to rotate to the bottom. The suspending nozzles utilize the principle of the ball rotating under its own eccentric torque to rotate the end of the ball with the one-way valve to the bottom. The adjusting rollers are connected to a motor, which drives the adjusting rollers to rotate the ball so that after rotating the end with the one-way valve to the bottom, the ball is rotated 180°, ultimately accurately adjusting the end of the ball with the one-way valve to the top without manual adjustment of the ball's position. This further automates the filling of nanomaterials, improves production efficiency, and reduces labor intensity.

[0029] The levitation nozzle includes an air outlet channel and an air intake channel outside the air outlet channel, which are concentrically arranged. The extended lines of the two side walls of the air outlet channel intersect at a point, and the intersection point of the two side walls of the air outlet channel deviates from the geometric center of the ball to be filled by less than 5 mm. The air intake channel can further reduce the frictional force tangential to the surface of the ball to be filled. For balls with small and light mass, if the surface friction is large, it is easy to cause suspension instability, making it difficult for the ball to be filled to rotate to the lowest point under the action of eccentric torque. The air intake channel can absorb most or all of the gas sprayed from the air outlet channel, thereby reducing the tangential frictional force of the airflow from the air outlet channel on the ball to be filled and improving the versatility of the attitude adjustment device.

[0030] The inner cavity of the air intake channel is connected to a mounting bracket, and a flexible ventilation component is provided on the mounting bracket. The mounting bracket and the flexible ventilation component can convert the mechanical energy of the ball to be filled into internal energy with minimal resistance, and prevent the ball to be filled from rotating too fast under the action of eccentric torque after being suspended, which would cause the part with the one-way valve to swing back and forth at the bottom and increase the posture adjustment time.

[0031] The mounting bracket includes a support portion connected to the inner cavity of the air intake channel, and a connecting portion is connected to the inner wall of the support portion; the connecting portion includes a first connecting portion connected to the support portion, and the first connecting portion is provided with a second connecting portion, the first connecting portion and the second connecting portion are concentrically arranged, and the first connecting portion and the second connecting portion are fixedly connected by a plurality of fixing components; the second connecting portion is fitted and connected to the outer wall of the air intake channel; the cross-section of the flexible ventilation component includes an arc-shaped inclined surface, a right-angled side, and a right-angled bottom side, the right-angled side is provided with a recessed portion, the recessed portion is fitted and connected to the support portion; the right-angled side is connected to the upper surface of the connecting portion. The length of the bottom right-angled side is greater than that of the side right-angled side; the height of the support part is greater than or equal to 1 / 2 of the length of the side right-angled side; the radius r0 of the arc-shaped inclined surface and the width L0 of the end of the air intake channel satisfy: r0>1.5L0, which can effectively prevent the flexible ventilation component from having too much resistance to the ball to be filled, causing the part of the ball to be filled with the one-way valve to be unable to move to the bottom. Secondly, it prevents the flexible ventilation component from having too strong ventilation, causing gas to escape and the flexible ventilation component from deforming and blocking the air outlet channel.

[0032] The positions where the suspended nozzle and the attitude adjustment roller connect to the arc-shaped pit are both located on the same horizontal plane. The deviation between the intersection of the extended axes of the suspended nozzle and the center of the spheres to be filled is <5mm. The deviation between the intersection of the extended centerline of the attitude adjustment roller and the center of the spheres to be filled is <5mm. The intersection of the extended centerline of the attitude adjustment roller and the extended axis of the suspended nozzle is the same intersection point o.

[0033] The distances L1 between the intersection point o and the top of the suspension nozzle, L2 between the intersection point o and the top of the attitude adjustment roller, and L3 between the intersection point o and the upper end of the support portion satisfy the following: This design ensures that during the suspension phase of the ball to be filled, the flexible ventilation component has a certain resistance to absorb the kinetic energy of the ball; secondly, it prevents the ball to be filled from exerting a large resistance force on the flexible ventilation component and the support, resulting in greater damping of the ball to be filled; and thirdly, it prevents the ball to be filled from contacting the attitude adjustment roller, which would increase the damping.

[0034] The attitude adjustment roller is connected to the arc-shaped pit through a roller bracket. The roller is provided with an arc-shaped concave surface that fits the spherical surface of the ball to be filled, so that the attitude adjustment roller fits the ball to be filled better and the direction is easier to control.

[0035] A filling device for adjusting the position of the aforementioned balls to be filled further includes a circulating conveyor belt and a control system. The arc-shaped pits are evenly distributed on the circulating conveyor belt. A filling mechanism is arranged above the circulating conveyor belt, and the filling mechanism is connected to a buffer tank and a vacuum system. The buffer tank is connected to a storage tank via a feeding mechanism, and the storage tank contains nano-energy-absorbing material. The position adjustment device, circulating conveyor belt, vacuum system, and feeding mechanism are electrically or communicatively connected. This equipment achieves fully automatic filling of the balls to be filled, resulting in better filling effect, higher filling efficiency, reduced labor intensity for workers, and better economic benefits.

[0036] This invention also provides a filling method using the aforementioned filling equipment. The method involves placing nano-energy-absorbing material inside a storage tank; transferring the nano-energy-absorbing material from the storage tank to a buffer tank until the internal pressure of the buffer tank reaches a target value; placing the ball to be filled in an arc-shaped indentation and adjusting its orientation, ensuring the end of the ball with the one-way valve is at its highest point; after adjusting the orientation, evacuating the ball; and filling the evacuated ball to achieve a preset amount of nano-energy-absorbing material, thus completing the filling process. The method is simple, easy to control, and suitable for industrialization. Attached Figure Description

[0037] Figure 1 This is a structural diagram of the sphere to be filled.

[0038] Figure 2 This is a schematic diagram of a device for adjusting the position of a ball to be filled according to the present invention.

[0039] Figure 3 This is a bottom view of the suspended nozzle of the present invention.

[0040] Figure 4 This is a bottom view and cross-sectional view (AA) of the suspended nozzle of the present invention.

[0041] Figure 5 This is a structural diagram of the mounting bracket of the present invention.

[0042] Figure 6 This is an enlarged view of the mounting bracket B of the present invention.

[0043] Figure 7 This is a structural diagram of the attitude adjustment roller of the present invention.

[0044] Figure 8 This is a structural diagram of the suspension nozzle and attitude adjustment roller configuration of the present invention.

[0045] Figure 9 This is a schematic diagram illustrating the force principle of a position adjustment device for a ball to be filled according to the present invention.

[0046] Figure 10This is a diagram showing the attitude adjustment process of a position adjustment device for a ball to be filled according to the present invention. In the diagram, a is the position diagram of the suspension stage, b is the state diagram of the one-way valve rotating to the bottom, c is the state diagram of the suspension nozzle being closed, and d is the state diagram of the attitude adjustment roller rotating the ball to be filled by 180°.

[0047] Figure 11 This is a structural diagram of the filling equipment of the present invention.

[0048] Figure 12 This is a structural diagram of the filling mechanism of the present invention.

[0049] Figure 13 This is a structural diagram showing the connection between the filling mechanism and the vacuum system of the present invention.

[0050] Figure 14 This is a top view of the buffer tank of the present invention.

[0051] Figure 15 This is a cross-sectional view of the buffer tank of the present invention along the CC direction.

[0052] Figure 16 This is a flowchart of the filling method of the present invention.

[0053] Among them, 1-ball to be filled, 11-one-way valve, 2-suspending nozzle, 20-air outlet channel, 21-air intake channel, 22-mounting bracket, 220-connecting part, 2200-first connecting part, 2201-second connecting part, 2202-fixed component, 221-support part, 23-flexible ventilation component, 230-arc-shaped slope, 231-bottom right-angled edge, 232-side right-angled edge, 2320-recessed part, 3-adjustment roller, 30-roller, 31-roller 4-Storage tank, 5-Feeding mechanism, 6-Buffer tank, 7-Filling mechanism, 70-Z-axis lifting structure, 71-Injection needle, 72-Three-way valve, 720-First switch, 721-Second switch, 8-Vacuum system, 9-Circulating conveyor belt, 90-Arc-shaped pit, 10-Control device, 110-Outrigger, 111-First mounting plate, 112-Second mounting plate, 12-Recovery tank, 120-Inclined plate, 121-Circulation, 13-Stirring mechanism. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0056] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0057] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0059] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 the present invention according to the specific circumstances.

[0060] The present invention will be further described in detail below with reference to specific embodiments. These descriptions are for explanation purposes only and are not intended to limit the scope of the invention.

[0061] See Figure 1In the prior art, the structure of the ball to be filled 1 is provided with a one-way valve 11. The function of the one-way valve 11 is: the injection needle is inserted into the ball to be filled 1 through the one-way valve to fill the ball 1 with nano energy-absorbing material; after filling, the injection needle is pulled out, and the nano energy-absorbing material will not flow out under the action of the one-way valve 11. The ball to be filled 1 is generally made of TPU material, or the surface can be sprayed with polyurea material.

[0062] See Figure 2 The present invention provides a position adjustment device for a ball to be filled, including an arc-shaped pit 90, wherein the ball to be filled 1 is placed in the arc-shaped surface of the arc-shaped pit 90; a plurality of floating nozzles 2 and a plurality of attitude adjustment rollers 3 are provided on the arc-shaped surface of the arc-shaped pit 90; preferably, the number of floating nozzles 2 and attitude adjustment rollers 3 is greater than or equal to 3.

[0063] The suspension nozzle 2 is connected to a gas generating mechanism, preferably an air compressor, which is used to supply air to the suspension nozzle 2, blowing the ball to be filled 1 into a suspended state, causing the end of the ball to be filled 1 with the one-way valve 11 to rotate to the bottom; see also Figure 3 and Figure 4 The suspended nozzle 2 includes an air outlet channel 20, the sidewalls of which have a certain inclination angle β. The intersection of the inclination angles deviates from the geometric center o of the placed ball 1 by no more than 5 mm. An air intake channel 21 is provided outside the air outlet channel 20, and the air outlet channel 20 and the air intake channel 21 are concentrically arranged. The extended lines of the two sidewalls of the air outlet channel 20 intersect at a point, and the deviation of the intersection of the two sidewalls of the air outlet channel 20 from the geometric center of the ball 1 to be filled is < 5 mm. An air intake mechanism is connected to the air intake channel. A mounting bracket 22 is connected to the inner cavity of the air intake channel 21, and a flexible ventilation component 23 is provided on the mounting bracket 22.

[0064] See Figure 5 The mounting bracket 22 includes a support portion 221 connected to the inner cavity of the air intake channel 21, and a connecting portion 220 connected to the inner wall of the support portion 221. The connecting portion 220 includes a first connecting portion 2200 connected to the support portion 220, and the first connecting portion 2200 is provided with a second connecting portion 2201. The first connecting portion 2200 and the second connecting portion 2201 are concentrically arranged and are fixedly connected by a plurality of fixing components 2202. The second connecting portion 2201 is engaged with the outer wall of the air intake channel 21.

[0065] It should be noted that the mounting bracket 22 is made of a material with a certain strength, such as metal, PVC, or thermosetting or thermoplastic materials, as long as it meets the requirement of supporting the flexible ventilation component 23. The flexible ventilation component 23 can be made from sponge, elastic filamentous plastic, or rubber filaments cut into clumps, as long as it has a certain damping and good air permeability. The outlet diameter of the suspended nozzle 2 is preferably no more than 3mm. Within this range, the air pressure of the suspended nozzle 2 can be precisely controlled. Specifically, for the same mass of ball 1 to be filled, if the outlet diameter of the suspended nozzle 2 is larger, the force will vary more under a certain pressure. The outlet diameter of the suspended nozzle 2 is within 3mm to achieve the target pressure, and the pressure adjustment range is large. Therefore, the position of the suspended ball can be precisely controlled so that the empty ball to be filled can contact the flexible ventilation component 23 without the flexible ventilation component 23 exerting excessive pressure on the support part 221.

[0066] See Figure 6 The flexible ventilation component 23 has a cross-section including an arc-shaped inclined surface 230, a side right-angled edge 232, and a bottom right-angled edge 231. The side right-angled edge 232 is provided with a recessed portion 23, which is connected to the support portion 220. The side right-angled edge 232 is connected to the upper surface of the connecting portion 220. The length of the bottom right-angled edge 231 is greater than that of the side right-angled edge 232. The height of the support portion 221 is greater than or equal to half the length of the side right-angled edge 232. The radius r0 of the arc-shaped inclined surface 230 and the width L0 of the end of the air intake channel 21 satisfy: r0 > 1.5L0.

[0067] See Figure 7 The attitude adjustment roller 3 includes a roller 30 and a roller bracket 31, with the roller 30 rotatably connected to the roller bracket 31. The attitude adjustment roller 3 is connected to a motor, which drives the roller 3 to rotate, rotating the ball 1 to be filled 180°. The stator of the motor is fixedly connected to the roller bracket 31, and the rotor of the motor is connected to the roller 30. The attitude adjustment roller 3 is connected to the arc-shaped pit 90 via the roller bracket 31. The roller 30 has an arc-shaped concave surface that conforms to the spherical surface of the ball 1 to be filled. The radius of the arc-shaped concave surface is the same as the radius of the ball 1 to be filled, allowing for good contact between the roller 30 and the surface of the ball 1, increasing the friction between them, preventing slippage, and thus making the posture control of the ball 1 to be filled more precise. Preferably, to improve the friction between the roller 30 and the ball 1 to be filled, the roller is made of rubber or silicone.

[0068] See Figure 8The positions where the suspended nozzle 2 and the attitude adjustment roller 3 are connected to the arc-shaped pit 90 are both located on the same horizontal plane. The deviation between the intersection of the extended axis of the suspended nozzle 2 and the center of the collection of the balls to be filled 1 is <5mm, and the deviation between the intersection of the extended centerline of the attitude adjustment roller 3 and the center of the collection of the balls to be filled 1 is <5mm. The intersection of the extended centerline of the attitude adjustment roller 3 and the extended axis of the suspended nozzle 2 is the same intersection point o. The distance L1 between intersection point o and the top of the suspended nozzle 2, the distance L2 between intersection point o and the top of the attitude adjustment roller 3, and the distance L3 between intersection point o and the upper end of the support 221 satisfy the following:

[0069] See Figure 9 The force principle of removing the floating nozzle 2 is as follows: Taking the three attitude adjustment rollers 3 as an example, without the floating nozzle 2, the force applied to the filling ball 1 by two of the three attitude adjustment rollers 3 is as follows: The force applied to the filling ball 1 by the right attitude adjustment roller 3 is F1, F 1x F1 is the horizontal component of the force. 1y F1 is the vertical component of force; the force applied by the left attitude adjustment roller 3 to the ball 1 to be filled is F2, mg is the weight of the ball 1 to be filled, Q is the geometric center, Q1 is the center of gravity, and L is the length of the line connecting Q and Q1. Based on the force analysis, it can be seen that the forces satisfy the following conditions, where the forces are vectors. Since the ball 1 to be filled is in a static state, the following relationship is satisfied:

[0070] In the horizontal direction: F 1x +F 2x +F 3x =0; where F 2x F is the horizontal component of F2; F 3x The horizontal component of the force applied to the third attitude adjustment roller F3;

[0071] In the vertical direction: F 1y +F 2y +F 3y =mg; where F 2y F is the vertical component of F2; F 3y The vertical component of the force on the third attitude adjustment roller F3;

[0072] If the three attitude adjustment rollers 3 are not powered and there is no resistance during rotation, the ball 1 to be filled will tend to rotate, with a rotational torque of mgLcosα. However, due to the small mass of the empty ball 1 to be filled, statistically, the average mass of the empty ball to be filled with a diameter of 100mm is 63g, the average mass of the empty ball to be filled with a diameter of 75mm is 33g, and the average mass of the empty ball to be filled with a diameter of 55mm is 14g. Under the above mass conditions, the frictional force of the attitude adjustment rollers 3 on the ball to be filled is calculated using a torque balance method; that is, Fr=mgLcosα, where F is the sum of the frictional forces of the three attitude adjustment rollers 3, and r is the radius of the ball 1 to be filled. Therefore, theoretically, the center of gravity position can be calculated by measuring the frictional force of the three attitude adjustment rollers on the empty ball 1 to be filled, and the attitude of the ball 1 to be filled can be adjusted based on the center of gravity position. However, due to the small mass of the ball 1 to be filled, no such precise mechanical sensor has been found on the market. Secondly, when the distance between Q and Q1 is close enough, the torque generated also decreases, making it even more difficult to measure the frictional force corresponding to the close distance between Q and Q1. Moreover, the measurement accuracy of the mechanical sensor is limited. Within the range that the mechanical sensor can measure, it is impossible to guarantee that the one-way valve 11 of the ball 1 to be filled is aligned with the injection needle using only the attitude adjustment roller 3. Furthermore, the attitude adjustment roller itself also has a certain resistance when rotating. Therefore, it is impossible to achieve the attitude adjustment of the ball 1 to be filled using only the attitude adjustment roller. The addition of the suspending nozzle 2 allows the ball to be filled 1 to be suspended, making it free from external resistance or subject to almost zero external resistance. Since the center of gravity of the ball to be filled 1 is not at the geometric center, it will rotate. Even when the geometric center of gravity is very close to the center of gravity, it will still rotate. Therefore, under the action of gravitational torque, the part with the one-way valve 11 will rotate under its own eccentric torque, eventually rotating the one-way valve 11 part to the bottom. In this way, the attitude adjustment roller 3 can be rotated by controlling the motor to rotate the ball to be filled by a fixed angle of 180°, so that the one-way valve 11 of the ball to be filled 1 is set upward, completing the attitude adjustment, which is convenient for subsequent filling of the ball to be filled 1 through the injection needle.

[0073] See Figure 10 The specific attitude adjustment method is as follows: control the gas pressure of the suspension nozzle 2 to press the ball 1 to be filled against the flexible ventilation component 23, and ensure that the ball 1 to be filled will not contact the attitude adjustment roller 3. The empty ball 1 to be filled is suspended by the gas pressure of the suspension nozzle 2. At this time, the friction force is zero. Under the action of the eccentric torque, the ball 1 to be filled rotates, so that the part with the one-way valve 11 is rotated to the bottom end, the suspension nozzle 2 is closed, the ball 1 to be filled presses against the attitude adjustment roller 3, and the attitude adjustment roller 3 is driven to rotate the ball 1 to be filled by 180°, thus completing the attitude adjustment of the ball 1 to be filled.

[0074] See Figure 11This invention provides a filling device including the aforementioned filling equipment position adjustment device for filling balls, further comprising a circulating conveyor belt 9 and a control system 10. The arc-shaped pits 90 are evenly distributed on the circulating conveyor belt 9. A filling mechanism 7 is mounted above the circulating conveyor belt 9 via a mounting frame. The mounting frame includes four support legs 110, which support the filling device. A first mounting plate 111 is fixedly connected to the top of each support leg 110. A feeding mechanism 5 is fixedly connected to the top of the first mounting plate 111, and a storage tank 4 is connected to the feeding mechanism 5. The filling mechanism 7 and the control system are fixed to the lower surface of the first mounting plate 111. The first mounting plate 111 is equipped with a second mounting plate 112, which is provided with a buffer tank 6 and a vacuum system 8. The second mounting plate 112 has a notch to ensure that the filling mechanism 7 is not obstructed during movement. The filling mechanism 7 is connected to the buffer tank 6 and the vacuum system 8. The inlet of the buffer tank 6 is connected to the feeding mechanism 5, which is a variable frequency screw conveyor. The inlet of the feeding mechanism 5 is connected to the storage tank 4 through a conveying pipe. The storage tank 4 is provided with nano energy-absorbing material. The position adjustment device, the circulating conveyor belt 9, the vacuum system 8 and the feeding mechanism 5 are electrically or communicatively connected.

[0075] The arrangement of the space allows the flow of the nano-energy-absorbing fluid to be generally from top to bottom, making full use of the kinetic energy of the nano-energy-absorbing fluid, reducing power loss during the transportation process, and improving space utilization due to the compact structure.

[0076] The buffer tank 6 provides ample space for the nano-energy-absorbing material, maintaining its pressure. Even if a certain amount of nano-energy-absorbing material is discharged, the buffer tank 6 can still allow the injection needle 71 to output at a pressure similar to the original pressure, reducing the opening frequency of the feeding mechanism 5 and improving the service life of the equipment. Since the nano-energy-absorbing material is a non-Newtonian fluid, directly using a screw conveyor at a certain speed during the conveying process inevitably increases the driving power of the variable frequency screw conveyor. The feeding mechanism 5 of this invention uses a variable frequency screw conveyor, which can greatly reduce the resistance of non-Newtonian fluids during the conveying process.

[0077] See Figure 12 and Figure 13The filling mechanism 7 includes a Z-axis lifting structure 70 and an injection needle 71. The implementation of the Z-axis lifting structure 70 is not particularly required; it can be driven by a ball screw or a linear motor. The injection needle 71 is connected to the moving end of the Z-axis lifting structure 70. The injection needle 71 is connected to a buffer tank 6 and a vacuum system 8 via a three-way valve 72. A recovery tank 12 is also provided between the vacuum system 8 and the three-way valve 72. After the injection needle 71 completes filling the previous ball 1, The next ball to be filled 1 needs to be vacuumed. At this time, some nano-energy-absorbing material is still retained inside the three-way valve 72 and the injection needle 71. The setting of the recovery tank 12 ensures that when the vacuum system is evacuated, the nano-energy-absorbing material inside the three-way valve 72 and the injection needle 71 is recovered in the recovery tank 12, avoiding the nano-energy-absorbing material from affecting the normal operation of the vacuum system 8. A first switch 720 is set between the three-way valve 72 and the buffer tank 6. A second switch 721 is set between the three-way valve 72 and the recovery tank 12.

[0078] See Figure 14 and Figure 15 The buffer tank 6 has a built-in stirring mechanism 13, which can prevent the deposition of nano-energy-absorbing materials, ensuring that the pressure output by the injection needle 71 is the same and the nano-energy-absorbing material has a uniform texture during the filling process. This avoids pressure instability during the injection process due to fluid properties, which could lead to inconsistent injection volume or performance of the nano-energy-absorbing balls after injection. The tank body of the buffer tank 6 is a cylindrical shell, with an upward-facing horn-shaped shell connected to the middle of the cylindrical shell and a cylindrical shell connected to the lower part of the horn-shaped shell. The blades of the stirring mechanism 13 are provided with inclined plates 120 at their distal ends. When the stirring mechanism 13 rotates, the nano-energy-absorbing material rises from the side of the buffer tank 6 and flows down from the middle of the buffer tank 6, forming a circulation 121. The bottom of the buffer tank 6 is connected to a delivery pipe, and the outlet of the delivery pipe is connected to a three-way valve 72.

[0079] See Figure 16 The present invention also provides a filling method using the above-mentioned filling equipment, characterized by comprising the following steps:

[0080] S1: Place the nano energy-absorbing material inside the storage tank 4, that is, add the preset amount of nano energy-absorbing material into the storage tank 4, turn on the power, and add the material by manual feeding or by a combination of automatic feeding and automatic dispensing.

[0081] S2: The nano energy-absorbing material inside the storage tank 4 is transported to the buffer tank 6 until the pressure inside the buffer tank 6 reaches the target value. Then, the feeding mechanism 5 is controlled to work to transport the nano energy-absorbing material from the storage tank 4 to the buffer tank 6. When the pressure inside the buffer tank 6 reaches the preset value, the operation stops.

[0082] S3: Place the ball to be filled 1 on the arc-shaped pit 90 and adjust its posture. Adjust the end of the ball to be filled 1 with the one-way valve 11 to the top, that is, place the ball to be filled 1 on the arc-shaped pit 90 on the circulating conveyor belt 9. Control the gas pressure of the suspension nozzle 2 so that the ball to be filled 1 presses against the flexible ventilation component 23, and ensure that the ball to be filled 23 does not contact the posture adjustment roller 3. After a preset time, rotate the end of the ball to be filled 1 with the one-way valve 11 to the bottom, close the suspension nozzle 2, and the ball to be filled 1 presses against the roller 30 of the posture adjustment roller 3. Drive the posture adjustment roller 3 to rotate the ball to be filled 180° so that the side of the ball to be filled 1 with the one-way valve 11 faces upward.

[0083] It should be noted that the above control steps are processed in parallel, meaning there is no sequential order among them. When the buffer tank 6 is equipped with a stirring mechanism 13, the stirring mechanism 13 needs to be controlled to maintain continuous operation at a preset speed. The preset values ​​in the buffer tank 6 and the preset pressure of the vacuum system 8 can be adjusted within their respective ranges based on actual needs.

[0084] S4: After the orientation adjustment of the ball to be filled 1 is completed, the ball to be filled 1 is evacuated. That is, after the orientation adjustment of the ball to be filled 1 is completed, the Z-axis lifting structure 70 is controlled to descend, so that the injection needle 71 is inserted into the ball to be filled 1 through the one-way valve 11. The second switch 721 is turned on, and the ball to be filled 1 is evacuated through the vacuum system 8. When the vacuum degree reaches the preset pressure, the second switch 721 is turned off.

[0085] S5: Fill the vacuum-sealed ball 1 to be filled, so that the amount of nano energy-absorbing material reaches the preset amount, and complete the filling. That is, turn on the first switch 720 to fill the ball 1 to be filled, so that the amount of nano energy-absorbing material reaches the preset amount, turn off the first switch 720, and control the Z-axis lifting structure 70 to rise, so that the injection needle 71 leaves the filled nano energy-absorbing ball, and control the circulating conveyor belt 9 to rotate to fill the next ball 1 to be filled.

[0086] The above process can be controlled by the control device 10 to control the operation and stop of the feeding mechanism 5, control the suspension nozzle 2 and the attitude adjustment roller 3 on the circulating conveyor belt 9, control the movement of the Z-axis lifting structure 70, and control the opening and closing states of the first switch 720 and the second switch 721 on the three-way valve.

[0087] It should be noted that the filling station of the filling equipment of the present invention can be set up with multiple filling stations, and the injection needles can also be set up with multiple needles to improve the production efficiency of the equipment.

[0088] In summary, the present invention provides a position adjustment device for the ball to be filled, a filling equipment, and a filling method. By using the suspension nozzle 2 to blow the ball to be filled into a suspended state in advance, the ball to be filled 1 is deflected under its own gravity, so that the side with the one-way valve 11 is rotated to the bottom. Then, by setting the posture adjustment wheel 3, the ball to be filled 1 is fixedly rotated 180°, realizing the automatic posture adjustment of the ball to be filled 1, providing conditions for fully automated filling production, further improving production efficiency, and reducing labor intensity.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the technical solution of the present invention in any way. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can be modified and replaced in several simple ways, and these modifications and replacements are all within the scope of protection covered by the claims.

Claims

1. A position adjustment device for a ball to be filled, characterized in that The arc-shaped pit (90) is arranged on the arc surface of the arc-shaped pit (90), and a plurality of suspension nozzles (2) and a plurality of posture adjusting rollers (3) are arranged on the arc surface of the arc-shaped pit (90). The suspension nozzle (2) is connected with a gas generating mechanism, which is used for ventilating the suspension nozzle (2) and blowing the to-be-filled ball (1) to a suspended state, so that the end of the to-be-filled ball (1) with the one-way valve (11) is rotated to the bottom end. The suspension nozzle (2) and the posture adjusting roller (3) are connected with the arc-shaped pit (90) at positions on the same horizontal plane, the intersection between the axis extension line of the suspension nozzle (2) and the geometric center of the to-be-filled ball (1) is less than 5mm, and the intersection between the center line extension line of the posture adjusting roller (3) and the geometric center of the to-be-filled ball (1) is less than 5mm. The suspension nozzle (2) is connected with a gas generating mechanism, which is used for ventilating the suspension nozzle (2) and blowing the to-be-filled ball (1) to a suspended state, so that the end of the to-be-filled ball (1) with the one-way valve (11) is rotated to the bottom end.

2. The position adjustment device of the ball to be filled according to claim 1, characterized in that, The inner cavity of the air suction channel (21) is connected with a mounting bracket (22), and the mounting bracket (22) is provided with a flexible ventilation component (23). The mounting bracket (22) includes a support portion (221) connected with the inner cavity of the air suction channel (21), and the inner wall of the support portion (221) is connected with a connecting portion (220); the connecting portion (220) includes a first connecting portion (2200) connected with the support portion (220), the first connecting portion (2200) is provided with a second connecting portion (2201), the first connecting portion (2200) and the second connecting portion (2201) are concentrically arranged, and the first connecting portion (2200) and the second connecting portion (2201) are fixedly connected through a plurality of fixing components (2202); and the second connecting portion (2201) is connected with the outer wall of the air suction channel (21). The cross section of the flexible ventilation component (23) includes an arc inclined surface (230), a side straight angle edge (232) and a bottom straight angle edge (231), the side straight angle edge (232) is provided with a recessed portion (2320), the recessed portion (2320) is connected with the support portion (220), and the side straight angle edge (232) is connected with the upper surface of the connecting portion (220).

3. The position adjustment device of the ball to be filled according to claim 2, characterized in that The length of the bottom right angle side (231) is greater than the length of the side right angle side (232); the height of the support part (221) is greater than or equal to 1 / 2 of the length of the side right angle side (232); the radius r0 of the arc-shaped slope (230) and the end width L0 of the air suction passage (21) satisfy: .

4. The position adjustment device of the ball to be filled according to claim 2, wherein The intersection of the center line extension line of the posture adjusting roller (3) and the axis extension line of the suspension nozzle (2) is the same intersection o, The distance L1 between the intersection point o and the top end of the suspension nozzle (2), the distance L2 between the intersection point o and the top end of the attitude adjustment roller (3), and the distance L3 between the intersection point o and the upper end of the support portion (221) satisfy: .

5. The position adjustment device of the ball to be filled according to claim 1, wherein The posture adjusting roller (3) is connected with the arc-shaped pit (90) through a roller support (31), and the roller (30) is provided with an arc-shaped concave surface which is attached to the spherical surface of the to-be-filled ball (1).

6. A filling apparatus comprising a position adjustment device for the to-be-filled balls according to any one of claims 1 to 5, characterized in that, Also include the circulating conveyor belt (9) and control system (10), the arc-shaped pit (90) is uniformly distributed on the circulating conveyor belt (9); The top of the circulating conveyor belt (9) is provided with a filling mechanism (7), the filling mechanism (7) is connected with a buffer tank (6) and a vacuum system (8); The buffer tank (6) is connected with a storage tank (4) through a feeding mechanism (5), the storage tank (4) is provided with nano energy-absorbing material inside; The position adjusting device, the circulating conveyor belt (9), the vacuum system (8) and the feeding mechanism (5) are electrically connected or communicatively connected.

7. The filling apparatus of claim 6, wherein The filling mechanism (7) comprises a Z-axis lifting structure (70) and a injection needle (71), the injection needle (71) is connected to the moving end of the Z-axis lifting structure (70), the injection needle (71) is connected with the buffer tank (6) and the vacuum system (8) through the three-way valve (72), the vacuum system (8) and the three-way valve (72) are further provided with a recovery tank (12); The three-way valve (72) and the buffer tank (6) are provided with a first switch (720); The three-way valve (72) and the recovery tank (12) are provided with a second switch (721).

8. The filling apparatus of claim 6, wherein, The buffer tank (6) is provided with a stirring mechanism (13); The tank body of the buffer tank (6) is a cylindrical shell, the middle part connected with the cylindrical shell is an upward horn-shaped shell, and the lower part connected with the horn-shaped shell is a cylindrical shell, the distal end of the blade of the stirring mechanism (13) is provided with an inclined plate (120); When the stirring mechanism (13) rotates, the nano energy-absorbing material rises from the edge of the buffer tank (6) and flows down from the middle part of the buffer tank (6), forming a circulating flow (121).

9. A filling method using the filling apparatus according to any one of claims 6 to 8, characterized in that, The steps include: Put the nano energy-absorbing material in the storage tank (4); The nano energy-absorbing material in the storage tank (4) is transported to the buffer tank (6) until the pressure in the buffer tank (6) reaches the target value; Place the to-be-filled ball (1) on the arc-shaped pit (90) and adjust the posture of the to-be-filled ball (1), adjust the end of the to-be-filled ball (1) with the one-way valve (11) to the top end; After adjusting the posture of the to-be-filled ball (1), the to-be-filled ball (1) is vacuumized; Fill the to-be-filled ball (1) after vacuumizing, so that the filling amount of the nano energy-absorbing material reaches the preset amount, and the filling is completed.

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