Powder bead material follow-up constant-quantity feeding and blanking device

Abstract

The application discloses a kind of powder bead material follow-up ration feeding blanking device, it is related to laundry condensation bead production equipment technical field, including mould roller, eccentric wheel, second synchronous belt and elastic linkage, further include: fixed baffle, the fixed baffle is slidably connected with sliding plate, the sliding plate is fixedly connected with the covering plate for material blocking;Driving mechanism is used to carry out power output to powder bead material follow-up ration feeding blanking device;Filling piece and powder bead feeding piece, the sliding plate is connected with powder bead feeding piece by elastic linkage.The application does not need independent power source, relies on mechanical limit and spring reset to realize blanking opening automatic closing, simple and reliable structure, low energy consumption, single motor synchronous drive roller transposition and swing arm swing, realize dynamic accurate alignment, adapt to high-speed production, four guide structure runs smoothly, small friction, low maintenance cost, taper hole blanking resistance is small, smooth discharge, reduce leakage jam, improve finished product pass rate.

Description

Technical Field

[0001] This invention relates to the field of laundry detergent pod production equipment technology, and in particular to a follow-up quantitative feeding and discharging device for powder pod materials. Background Technology

[0002] Laundry detergent pods are a commonly used cleaning product in the daily chemical industry. In the process of industrialized mass production, accurate filling of materials is one of the core processes. Production lines generally adopt a continuous high-speed operation mode, which requires the filling and dispensing process to have the characteristics of synchronous action, rapid response and stable operation in order to ensure the production efficiency and finished product quality of the entire production line.

[0003] Currently, most high-speed packaging equipment of the same type on the market uses an independent power element to control the opening and closing of the material inlet, and relies on an external drive component in conjunction with the transmission structure to complete the material feeding, thereby realizing the quantitative filling of material into the forming mold.

[0004] However, the existing structure has certain problems during long-term high-speed operation: on the one hand, the additional configuration of independent drive components will significantly increase the complexity of the overall machine structure, and the coordinated operation of multiple power sources is prone to problems of asynchronous action rhythm, which will lead to problems such as material leakage, over-dispensing, and material jamming; on the other hand, external power components not only increase the overall energy consumption and daily maintenance costs of the equipment, but their action response also has inherent lag, making it difficult to match the operating rhythm of high-speed production lines, which restricts the overall production capacity of the equipment and also reduces the finished product qualification rate. Therefore, we urgently need a powder bead follow-up feeding mechanism for high-speed laundry detergent pod packaging machines to solve the above problems. Summary of the Invention

[0005] The present invention provides a follow-up quantitative feeding and dropping device for powder beads, which solves the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A device for feeding and discharging powder beads in a quantitative manner includes a mold roller, an eccentric wheel, a second synchronous belt, and an elastic linkage component, and further includes: A fixed baffle, on which a sliding plate is slidably connected, and on which a cover plate for blocking material is fixedly connected; The drive mechanism is used to provide power to the follow-up quantitative feeding and unloading device for powder beads. The filling component and the powder bead feeding component are connected by an elastic linkage component, and the cover plate cooperates with the powder bead feeding component to form a follow-up dropping area.

[0007] Furthermore, the driving mechanism includes a drive motor, the output end of which is connected to a transmission via a first synchronous belt, and the output shaft of the transmission contacts the mold roller via a turntable. When the drive motor works in conjunction with the first synchronous belt, the mold roller rotates under the action of the turntable to form a switching zone for the mold groove.

[0008] Furthermore, the output end of the drive motor is connected to the eccentric wheel via a second synchronous belt to form a transmission zone. A swing arm is rotatably connected to the side of the mold roller, and the end of the swing arm is connected to the eccentric wheel to form a swing zone. The filling component is located above the mold roller and is connected to the swing arm. The powder bead feeder is located on the side of the filling component and above the mold roller, and is connected to the swing arm via a connecting rod. When the drive motor works and rotates in conjunction with the second synchronous belt and the eccentric wheel, the swing arm rotates and swings along its rotation axis, causing the filling component and the powder bead feeder to swing along to form a follow-up zone.

[0009] Furthermore, the powder bead feeding component includes a storage box, and a discharge head base plate for distributing materials is fixedly installed at the discharge port of the storage box. Conical holes for discharging materials are equidistantly opened on the discharge head base plate. A first discharge hole matching the conical holes is opened at the bottom of the discharge head base plate, and the first discharge hole is connected to the conical holes. Multiple sets of insertion slots are opened on the discharge head base plate, and the multiple sets of insertion slots are located between the first discharge hole and the conical holes.

[0010] Furthermore, the cover plate is disposed on the side of the sliding plate near the material drop head base plate. There are multiple sets of cover plates, and the multiple sets of cover plates are disposed in corresponding insertion slots. The cover plate is provided with a second discharge hole that matches the first discharge hole. When the second discharge hole on the cover plate is not coaxial with the first discharge hole, it is in the first working state. When the second discharge hole on the cover plate is coaxial with the first discharge hole, it forms the second working state.

[0011] Furthermore, a hinge frame is symmetrically installed on one side of the sliding plate, and rolling bearings are rotatably connected in both sets of hinge frames; In the first working state, the rolling bearing is limited and engaged with the fixed baffle; In the second operating state, the rolling bearing is separated from the fixed baffle.

[0012] Furthermore, the elastic linkage includes guide shafts symmetrically mounted on the sliding plate. There are two sets of guide shafts on each side. Placement holes are provided on the blanking head base plate corresponding to the guide shaft positions. Linear bearings are fixedly installed in each placement hole. The guide shafts are slidably assembled in the linear bearings to form a follow-up sliding area.

[0013] Furthermore, a compression spring is fitted on one of the guide shafts, and the two ends of the compression spring are respectively connected to the slide plate and the base plate outside the linear bearing to form an elastic reset area.

[0014] Compared with existing technologies, the beneficial effects of this invention are: 1. This invention sets a cover plate at the end of the sliding plate and inserts it into the insertion groove of the discharge head substrate. By utilizing the limiting cooperation of the fixed baffle and the rolling bearing, as well as the elastic restoring force of the compression spring, the cover plate is automatically driven to slide relative to the discharge head substrate during the reciprocating swing of the swing arm driving the powder bead feeder. This achieves the coaxial alignment and staggered switching of the second discharge hole and the first discharge hole. Therefore, the opening and closing of the discharge port can be automatically completed without the need for an additional independent power source. The structure is simple, the operation is reliable, and the energy consumption is low. 2. This invention uses a single drive motor in conjunction with a first synchronous belt and a second synchronous belt to simultaneously drive the mold roller to rotate intermittently and the swing arm to swing back and forth. This allows the filling component and the powder bead feeding component to move synchronously with the mold groove within the follow-up zone. This achieves dynamic and precise alignment of the filling and unloading processes under the continuous operation of the mold roller. The transmission chain is simple and efficient, and the control difficulty is low. It can meet the high-speed packaging requirements of hundreds of beads per minute. 3. This invention integrates the cover plate, sliding plate, guide shaft and compression spring into an elastic linkage component. The guide shaft is slidably mounted in the linear bearing in the blanking head base plate to form a stable sliding support structure with two sides and four guides. This makes the cover plate move smoothly without deflection or jamming during high-frequency reciprocating opening and closing. Moreover, the linear bearing and guide shaft have rolling friction, which results in low frictional resistance and light wear. It can adapt to long-term continuous operation and has low maintenance costs. 4. The present invention provides a tapered hole on the blanking head substrate that is connected to the first discharge hole, and an insertion groove is opened between the tapered hole and the first discharge hole. This makes the valve action surface of the cover plate located in the height area of ​​the natural accumulation of powder beads. When opening and closing, the resistance of the powder beads to the cover plate is small, and the valve action is smooth. At the same time, the powder beads are gathered and discharged through the tapered hole under the action of gravity. No vibration or airflow assistance is required. The structure is simple and the discharge is smooth. In summary, this equipment does not require an independent power source. It relies on mechanical limit and spring reset to achieve automatic opening and closing of the discharge port. It has a simple and reliable structure with low energy consumption. A single motor synchronously drives the roller rotation and swing arm swing to achieve dynamic and precise alignment, making it suitable for high-speed production. The four-guide structure ensures stable operation, low friction, and low maintenance costs. The tapered hole provides low resistance to material discharge, ensuring smooth material output, reducing material leakage and jamming, and improving the finished product qualification rate. Attached Figure Description

[0015] Figure 1 This is a top-view three-dimensional structural diagram of a powder bead material follow-up quantitative feeding and unloading device proposed in this invention; Figure 2This is a partial cross-sectional top view of the three-dimensional structure of a powder bead material follow-up quantitative feeding and unloading device proposed in this invention; Figure 3 This invention proposes a follow-up quantitative feeding and discharging device for powder beads. Figure 2 Enlarged structural diagram at point A; Figure 4 This is a top-view three-dimensional structural diagram of the material feeding head substrate of the powder bead material follow-up quantitative feeding and discharging device proposed in this invention; Figure 5 This is a top-view three-dimensional structural diagram of the cover plate of a powder bead material follow-up quantitative feeding and dropping device proposed in this invention; Figure 6 This is an exploded top-view three-dimensional structural diagram of a powder bead material follow-up quantitative feeding and unloading device proposed in this invention; Figure 7 This is a first-view overall structural diagram of a powder bead material follow-up quantitative feeding and unloading device proposed in this invention; Figure 8 This is a second-view overall structural diagram of a powder bead material follow-up quantitative feeding and unloading device proposed in this invention; Figure 9 This is a third-view overall structural diagram of a powder bead material follow-up quantitative feeding and dropping device proposed in this invention.

[0016] In the diagram: 1. Mold roller; 2. Fixed baffle; 3. Sliding plate; 4. Cover plate; 5. Filling component; 6. Powder bead feeder; 7. Drive motor; 8. First synchronous belt; 9. Transmission device; 10. Eccentric wheel; 11. Second synchronous belt; 12. Swing arm; 13. Storage box; 14. Drop head base plate; 15. Tapered hole; 16. First discharge hole; 17. Insertion groove; 18. Second discharge hole; 19. Hinge frame; 20. Rolling bearing; 21. Guide shaft; 22. Placement hole; 23. Linear bearing; 24. Compression spring. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0019] Example Reference Figure 1 - Figure 9 A quantitative feeding and unloading device for powder beads includes a mold roller 1 for producing laundry detergent pods, which is rotatably connected to a packaging machine via a bearing seat. It also includes a fixed baffle 2 fixedly installed on the packaging machine, a sliding plate 3 slidably connected to the fixed baffle 2, a cover plate 4 for blocking material fixedly connected to the sliding plate 3, and a filling component 5 and a powder bead feeder 6 oscillating on the packaging machine via a drive mechanism.

[0020] Here, the mold roller 1 is the core forming component of the laundry detergent pod packaging machine. Multiple sets of mold grooves are arranged in an array along the circumferential direction on its outer circumferential surface to receive liquid filling material and powder beads and form them into complete laundry detergent pod products. The fixed baffle 2 is fixedly installed on the frame of the packaging machine and serves as a fixed reference component for realizing the opening and closing of the valve in the entire follow-up feeding mechanism. One side of it has a planar guide surface for the sliding plate 3 to slide. The sliding plate 3 is slidably connected above or to the side of the fixed baffle 2, and can slide back and forth in the horizontal direction under the guidance of the fixed baffle 2; The cover plate 4 is fixedly connected to the end of the sliding plate 3 near the powder bead feeder 6. The cover plate 4 moves synchronously with the sliding plate 3, and the opening and closing of the discharge port is achieved by changing its relative position with the powder bead feeder 6. The filling component 5 is used to inject liquid laundry detergent base material into the mold groove of the mold roller 1, and the powder bead feeder 6 is used to quantitatively feed solid powder bead particles into the mold groove.

[0021] In this invention, the two ends of the mold roller 1 are rotatably supported on the wall plate of the packaging machine through bearing seats, and its rotating shaft is connected to the drive mechanism. The fixed baffle 2 is fixed to the frame of the packaging machine by bolts or welding. Its guide surface is precision machined to ensure the smoothness and positional accuracy of the sliding plate 3 when it slides on it. The bottom or side of the sliding plate 3 is provided with a sliding guide groove that cooperates with the fixed baffle 2. A reasonable gap is left between the two, which not only ensures the flexible sliding of the sliding plate 3, but also effectively prevents the shaking caused by excessive gap. The filling component 5 and the powder bead feeder 6 are arranged sequentially along the circumference of the mold roller 1. The filling component 5 is located at the upstream station, and the powder bead feeder 6 is located at the downstream station. The two maintain their relative positions during the follow-up swing process. The drive mechanism includes a drive motor 7 installed in the packaging machine. The output end of the drive motor 7 is connected to the transmission device 9 through the first synchronous belt 8. The output shaft of the transmission device 9 contacts the mold roller 1 through the turntable. When the drive motor 7 works in conjunction with the first synchronous belt 8, the mold roller 1 rotates under the action of the turntable to form a switching zone for the mold slot.

[0022] Here, the drive motor 7 is a servo motor or a stepper motor, which has precise speed control and angle control capabilities, providing a unified power source for the intermittent rotation of the mold roller 1 and the continuous rotation of the eccentric wheel 10. The first synchronous belt 8 is a toothed synchronous belt, which meshes with the driving pulley on the output shaft of the drive motor 7 and the driven pulley on the input shaft of the transmission device 9. The transmission ratio is accurate and there is no slippage, which can ensure that the rotation angle of the mold roller 1 is precisely controllable.

[0023] Transmission device 9 is a speed reduction transmission device. A dial wheel is installed on its output shaft. The dial wheel is an intermittent motion mechanism with multiple teeth. Each time it rotates, the teeth on the dial wheel engage with the indexing groove at the end of the mold roller 1 in sequence, driving the mold roller 1 to rotate through a fixed angle, thereby realizing the switching of a mold slot station.

[0024] The mold slot switching area refers to the continuous switching area where a set of mold slots on the mold roller 1 moves sequentially from the filling station to the powder drop station and then to the sealing station during the rotation process.

[0025] In this invention, the drive motor 7 is fixedly installed on the motor base inside the frame of the packaging machine, and its output shaft axis is arranged parallel to the axis of the mold roller 1 to simplify the transmission path and reduce intermediate transmission links. The first synchronous belt 8 is made of high-strength material and has an internal tensile layer, which has the characteristics of high tensile strength and low elongation, and can maintain tension without decay for a long time.

[0026] The transmission device 9 is equipped with a single or multiple gear reduction mechanism to reduce the higher speed of the drive motor 7 to the lower speed required by the mold roller 1, while increasing the output torque. The actuating wheel can adopt a Geneva wheel mechanism or an indexing cam mechanism, preferably a Geneva wheel mechanism, which has a simple structure and is easy to manufacture, and can realize the intermittent indexing and precise positioning of the mold roller 1.

[0027] Furthermore, a single drive motor 7 is used to simultaneously drive the mold roller 1 and the eccentric wheel 10, reducing the number of drive sources, lowering the complexity of the electrical control system, and reducing the overall cost of the machine. It adopts synchronous belt drive, which is smooth, low noise, requires no lubrication, and is easy to maintain. It is suitable for production environments with high hygiene requirements for laundry pod packaging machines. It uses grooved wheel mechanism as the actuating wheel, which can realize the precise indexing of mold roller 1, ensuring that each mold groove can accurately stop at the filling station and the unloading station, effectively avoiding quality problems such as filling spillage or powder drop due to positioning deviation.

[0028] An eccentric wheel 10 is rotatably connected to the packaging machine. The output end of the drive motor 7 is connected to the eccentric wheel 10 through the second synchronous belt 11 to form a transmission zone. A swing arm 12 is rotatably connected to the packaging machine and located on the side of the mold roller 1. The end of the swing arm 12 is connected to the eccentric wheel 10 to form a swing zone. The filling component 5 is located above the mold roller 1 and is connected to the swing arm 12. The powder bead feeder 6 is located on the side of the filling component 5 and above the mold roller 1, and is connected to the swing arm 12 through a connecting rod. When the drive motor 7 works and rotates in coordination with the second synchronous belt 11 and the eccentric wheel 10, the swing arm 12 rotates and swings along its rotation axis. The filling component 5 and the powder bead feeder 6 swing along with it to form a follow-up zone.

[0029] Here, the eccentric wheel 10 is a circular or near-circular eccentric rotating component. There is a certain eccentricity between its rotation center and geometric center. The size of the eccentricity determines the swing amplitude of the swing arm 12. The eccentric wheel 10 is supported on the frame of the packaging machine by bearing rotation. Its input shaft is connected to the output end of the drive motor 7 through the second synchronous belt 11.

[0030] The swing arm 12 is a long strip or frame-shaped swing link. One end of it is connected to the outer edge of the eccentric wheel 10 through a connecting rod or roller, and the other end is rotatably connected to the frame of the packaging machine through a hinge shaft. When the eccentric wheel 10 rotates around its rotation center, the outer edge of the eccentric wheel 10 pushes the swing arm 12 to swing back and forth around its hinge shaft with the frame through the connecting rod.

[0031] The follow-up zone refers to the area where the lower outlet of the filling component 5 and the powder bead feeder 6 moves synchronously with the mold groove on the surface of the mold roller 1 during the swinging process of the swing arm 12. In this area, the linear velocity of the lower outlet of the filling component 5 and the powder bead feeder 6 in the horizontal direction is basically the same as the linear velocity of the mold groove on the surface of the mold roller 1, thereby realizing accurate filling and accurate dropping during dynamic movement.

[0032] In this invention, the eccentric wheel 10 and the swing arm 12 are connected by a linkage mechanism. One end of the linkage is mounted on the outer circumference of the eccentric wheel 10 through a rolling bearing, and the other end is hinged to the middle or upper end of the swing arm 12 through a hinge pin. The axis of the hinge shaft between the swing arm 12 and the packaging machine frame is parallel to the axis of the mold roller 1. The swing plane of the swing arm 12 is perpendicular to the axis of the mold roller 1. The filling component 5 is fixedly connected to the swing arm 12 through a bracket. The center line of the discharge port at its lower end is coplanar with the vertical center plane of the mold roller 1, ensuring that the liquid base material is accurately injected into the center position of the mold groove.

[0033] The powder bead feeder 6 is fixedly connected to the swing arm 12 by a connecting rod. The length and installation angle of the connecting rod are precisely designed so that the outlet of the powder bead feeder 6 and the outlet of the filling component 5 maintain a fixed distance around the mold roller 1. This distance is equal to the center distance between adjacent mold slots, so as to ensure that the same mold slot can obtain accurate material feeding when passing through the filling station and the powder bead dropping station in sequence.

[0034] It is worth mentioning that adopting the above-mentioned follower swing structure has the following advantages: First, the swing is achieved through a planar linkage mechanism consisting of an eccentric wheel 10 and a swing arm 12. The structure is simple and the operation is reliable. Compared with the swing driven by an independent servo motor, the cost is significantly reduced. Secondly, the filling component 5 and the powder bead feeding component 6 move in a relatively synchronous manner with the mold groove in the follower zone, so that the filling and discharging process can be carried out while the mold roller 1 is rotating continuously, without the need to frequently start and stop the mold roller 1, which greatly improves the production efficiency of the packaging machine. Third, the synchronous oscillation of the filling component 5 and the powder bead feeding component 6 ensures the accuracy of the relative position between their outlets and the mold groove, effectively avoiding material spillage due to positional deviation, improving the product qualification rate, and reducing raw material waste.

[0035] The sliding plate 3 and the powder bead feeder 6 are connected by an elastic linkage. The elastic linkage includes guide shafts 21 symmetrically installed on the sliding plate 3. There are two sets of guide shafts 21 on each side. Placement holes 22 are opened on the drop head base plate 14 corresponding to the positions of the guide shafts 21. Linear bearings 23 are fixedly installed in the placement holes 22. The guide shafts 21 are slidably assembled in the linear bearings 23 to form a follow-up sliding area.

[0036] Here, the elastic linkage is a mechanical component that realizes the elastic connection between the sliding plate 3 and the powder feeder 6. It allows the sliding plate 3 to have a certain relative displacement relative to the powder feeder 6 when it is subjected to external force, and can automatically return to the initial position after the external force disappears. The guide shaft 21 is a precision-ground optical shaft with high surface hardness and low roughness, providing precise linear guidance for the reciprocating sliding of the slide plate 3. Two sets of guide shafts 21 are set on one side, and four sets are set on both sides in total, forming a stable four-guide support structure, so that the slide plate 3 will not deflect or get stuck during the sliding process.

[0037] The placement hole 22 is opened in the side wall of the blanking head base plate 14. Its diameter matches the outer diameter of the linear bearing 23. The linear bearing 23 is a ball-type linear bearing with a circulating ball guide groove inside. After the guide shaft 21 passes through the linear bearing 23, it can achieve low friction and high precision linear sliding under the rolling support of the balls. The follow-up sliding area refers to the axial length range in which the guide shaft 21 can slide in the linear bearing 23. This range is the effective movement stroke of the slide plate 3 relative to the powder ball feeder 6.

[0038] In this invention, one end of the guide shaft 21 is fixedly installed on the slide plate 3. The installation method is threaded connection or interference fit press-in. The axis of the guide shaft 21 is parallel to the sliding direction of the slide plate 3. Two sets of guide shafts 21 on one side are arranged vertically in parallel. The distance between the two sets of guide shafts 21 is large enough to form a stable anti-torque structure, effectively preventing the slide plate 3 from twisting when subjected to force. The linear bearing 23 is a commercially available standard part. It adopts a structure with a metal shell and an embedded ball cage, which has good interchangeability and durability.

[0039] The depth of the placement hole 22 is greater than the length of the linear bearing 23, providing sufficient space for the assembly of the linear bearing 23 and the guide shaft 21. The axial length of the follower sliding zone is determined according to the stroke required for the valve to open and close, which can reliably realize the switching between the second discharge hole 18 and the first discharge hole 16 on the cover plate 4 in a coaxial aligned state and a completely offset state.

[0040] One of the guide shafts 21 is fitted with a compression spring 24. The two ends of the compression spring 24 are connected to the slide plate 3 and the base plate outside the linear bearing 23 to form an elastic reset area.

[0041] Here, the compression spring 24 is a cylindrical helical compression spring made of stainless steel spring wire, which has good corrosion resistance and stable elastic properties. The compression spring 24 is fitted on the outer periphery of one of the guide shafts 21. The guide shafts 21 provide internal support for the compression spring 24 to prevent the compression spring 24 from bending and becoming unstable during compression. The base plate outside the linear bearing 23 refers to the blanking head base plate 14 or a plate fixedly connected to the blanking head base plate 14. This base plate serves as the fixed bearing surface of one end of the compression spring 24. One end of the compression spring 24 abuts against the side of the sliding plate 3, and the other end abuts against the side of the base plate outside the linear bearing 23. The elastic reset area refers to the area where the compression spring 24 can push the sliding plate 3 back to its initial position after it undergoes elastic deformation under compression and stores elastic potential energy.

[0042] In this invention, after the sliding plate 3 and the powder bead feeder 6 are assembled, the compression spring 24 can be in a pre-compressed state. The pre-compression force can ensure that the sliding plate 3 is always pushed towards the direction close to the dropping head base plate 14 without being restricted by external forces, that is, the dropping opening position where the second discharge hole 18 of the cover plate 4 and the first discharge hole 16 are coaxially aligned. The parameters of the compression spring 24 are designed according to the required elastic force and the frequency of action. The spring stiffness should not be too large while ensuring reliable reset, so as not to increase the impact force when the rolling bearing 20 contacts the fixed baffle 2. The compression spring 24 can be set on only one of the guide shafts 21, or it can be set on both guide shafts 21. It is preferred to set it on one of them. This can ensure sufficient reset force and avoid uneven force on the sliding plate that may be caused by inconsistent spring forces on both sides.

[0043] When the drive mechanism drives the filling component 5 and the powder bead feeder 6 to swing, the cover plate 4 cooperates with the powder bead feeder 6 to form a follow-up dropping zone.

[0044] Here, the follow-up dropping zone refers to the process in which the powder bead feeder 6 swings synchronously with the filling component 5, and the cover plate 4 automatically opens the dropping port at the appropriate phase of the swing cycle through the controlled movement relative to the powder bead feeder 6. The powder beads fall accurately from the powder bead feeder 6 through the discharge hole of the cover plate 4 into the working area of ​​the corresponding mold groove on the mold roller 1. In this area, the opening and closing action of the dropping port is automatically coordinated with the swing phase of the swing arm 12 without the need for an independent control system intervention.

[0045] The powder bead feeder 6 includes a storage box 13 for storing agglomerated beads. A discharge head substrate 14 for distributing materials is fixedly installed at the discharge port of the storage box 13. Conical holes 15 for discharging materials are equidistantly opened on the discharge head substrate 14. A first discharge hole 16 matching the conical hole 15 is opened at the bottom of the discharge head substrate 14, and the first discharge hole 16 is connected to the conical hole 15. Multiple sets of insertion slots 17 are opened on the discharge head substrate 14, and the multiple sets of insertion slots 17 are located between the first discharge hole 16 and the conical hole 15.

[0046] Here, the storage box 13 is a container with an opening at the top or a feed inlet, used to temporarily store the powder beads conveyed from the upstream feeding mechanism, playing a role in buffering and storing materials, and ensuring the continuity of powder bead supply during the dropping process. The bottom of the inner cavity of the storage box 13 is a funnel-shaped slope, which facilitates the automatic flow of powder beads to the discharge port under the action of gravity. The dropping head base plate 14 is a rectangular plate-shaped part, which is fixedly installed at the bottom discharge port of the storage box 13, serving as the execution element for quantitative distribution of powder beads. Multiple sets of conical holes 15 are equally spaced along the length direction on the dropping head base plate 14. The number of conical holes 15 corresponds to the number of single-row mold slots on the mold roller 1. Each set of conical holes 15 corresponds to one mold slot, realizing the synchronous dropping of multiple condensed beads in a row.

[0047] The upper end of the conical hole 15 has a large diameter opening, and the lower end has a small diameter closing. Under the action of gravity, the powder beads converge along the conical slope to the bottom first discharge hole 16. The first discharge hole 16 is located directly below the conical hole 15. Its diameter is designed according to the particle size of the powder beads to ensure that the powder beads can pass through smoothly without clogging. The insertion groove 17 is a transverse through groove opened on the side of the discharge head substrate 14. Its cross-sectional shape is rectangular, and its height is slightly greater than the thickness of the cover plate 4. The insertion groove 17 is located between the first discharge hole 16 and the conical hole 15, that is, at the junction of the bottom outlet of the conical hole and the top of the first discharge hole 16. The cover plate 4 is inserted into the interior of the discharge head substrate 14 through the insertion groove 17, forming an openable and closable valve structure between the conical hole 15 and the first discharge hole 16.

[0048] In this invention, a transparent observation window can be opened on the side wall of the storage box 13 to facilitate the operator to observe the remaining amount of powder beads inside. The discharge head substrate 14 is made of stainless steel or engineering plastic and is installed at the bottom of the storage box 13 by screw fixing or snap connection. A reasonable gap is left between its bottom surface and the surface of the mold roller 1, which can prevent the discharge head substrate 14 from contacting and rubbing against the mold roller 1, and can also ensure the accuracy of the powder bead discharge position. The cone angle of the conical hole 15 is reasonably designed to ensure that the powder beads slide down smoothly, and to avoid the conical hole being too deep and affecting the overall strength of the discharge head substrate 14.

[0049] The diameter of the first discharge hole 16 is designed to effectively prevent powder beads from bridging and clogging at the discharge hole. The width of the insertion groove 17 and the thickness of the cover plate 4 are in clearance fit, which can ensure that the cover plate 4 can slide flexibly in the insertion groove 17 and effectively prevent powder beads from leaking out from the gap.

[0050] The cover plate 4 is located on the side of the sliding plate 3 near the material drop head base plate 14. There are multiple sets of cover plates 4, and the multiple sets of cover plates 4 are set with corresponding insertion slots 17. The cover plate 4 is provided with a second discharge hole 18 that matches the first discharge hole 16. When the second discharge hole 18 on the cover plate 4 is not coaxial with the first discharge hole 16, it is in the first working state. When the second discharge hole 18 on the cover plate 4 is coaxial with the first discharge hole 16, it forms the second working state.

[0051] Here, the cover plate 4 is a thin plate-shaped valve component, the thickness of which matches the width of the insertion groove 17. One end of the cover plate 4 is fixedly connected to the sliding plate 3, and the other end is inserted into the insertion groove 17 of the discharge head base plate 14. The number of cover plates 4 is the same as the number of insertion grooves 17, and each set of cover plates 4 corresponds to one discharge channel. The second discharge hole 18 opened on the cover plate 4 is a through hole, the diameter of which is the same as or slightly larger than the diameter of the first discharge hole 16. When the second discharge hole 18 is coaxially aligned with the first discharge hole 16, the powder bead channel is fully opened, and the discharge can proceed. When the two are misaligned, the solid part of the cover plate 4 blocks the top of the first discharge hole 16, preventing the powder beads from passing through and stopping the discharge. The first working state is the closed discharge port state. At this time, the second discharge hole 18 on the cover plate 4 is misaligned with the first discharge hole 16 in the vertical direction, and the plate body of the cover plate 4 covers the top of the first discharge hole 16, preventing the powder beads from falling.

[0052] The second working state is the opening state of the discharge port. At this time, the second discharge hole 18 on the cover plate 4 is completely aligned with the first discharge hole 16 in the vertical direction, and the powder beads can smoothly fall from the conical hole 15 through the second discharge hole 18 and the first discharge hole 16 into the mold groove.

[0053] In this invention, the cover plate 4 can be made of stainless steel sheet or stainless steel spring steel sheet, which has sufficient rigidity and wear resistance. It will not produce obvious wear and deformation when sliding back and forth in the insertion groove 17 for a long time. The periphery of the second discharge hole 18 is chamfered or deburred to avoid scratching the passing powder beads when the cover plate 4 slides. Multiple sets of cover plates 4 are installed side by side, and the spacing is consistent with the spacing of multiple sets of conical holes 15 on the discharge head base plate 14. All cover plates 4 are fixed on the same sliding plate 3 to realize the synchronous opening and closing of all discharge channels.

[0054] The switching stroke between the first working state and the second working state is greater than the diameter of the first discharge hole 16, ensuring that no powder beads can leak out when the state is closed.

[0055] A hinge frame 19 is symmetrically installed on one side of the sliding plate 3, and rolling bearings 20 are rotatably connected in both sets of hinge frames 19. In the first working state, the rolling bearing 20 is in a limiting engagement with the fixed baffle 2; In the second working state, the rolling bearing 20 is separated from the fixed baffle 2.

[0056] Here, the hinge frame 19 is a cantilever bracket extending to the side of the sliding plate 3. Its end is provided with a bearing mounting hole or a bearing mounting shaft for mounting the rolling bearing 20. The hinge frame 19 is symmetrically installed on both sides of the sliding plate 3 to ensure that when the rolling bearing 20 contacts the fixed baffle 2, the forces on both sides of the sliding plate 3 are balanced and will not deflect.

[0057] The rolling bearing 20 is a small deep groove ball bearing with a freely rotating outer ring. When the outer ring of the rolling bearing 20 contacts the side of the fixed baffle 2 and relative motion occurs, the rotation of the outer ring of the rolling bearing 20 converts sliding friction into rolling friction, significantly reducing contact resistance and wear. The limiting fit refers to the contact and abutment between the outer ring of the rolling bearing 20 and the side of the fixed baffle 2. The fixed baffle 2 prevents the rolling bearing 20 and the connected sliding plate 3 from continuing to move in that direction, thereby mechanically limiting the end point of the sliding plate 3's stroke.

[0058] In the first working state, i.e. the material feeding closed state, the rolling bearing 20 contacts the fixed baffle 2 and is limited; In the second working state, i.e. the material feeding start state, the rolling bearing 20 moves with the sliding plate 3 to a position away from the fixed baffle 2, and the two disengage.

[0059] In this invention, the hinge frame 19 is fixed to the side of the slide plate 3 by screws or welding, and its cantilever length can ensure that the outer ring of the rolling bearing 20 can reliably contact the side of the fixed baffle 2 when the slide plate 3 moves close to the fixed baffle 2. The rolling bearing 20 is connected to the hinge frame 19 by bearing pins or bolts. The outer ring of the rolling bearing 20 is exposed to the outside, serving as the contact rolling surface with the fixed baffle 2. The side of the fixed baffle 2 that contacts the rolling bearing 20 is locally hardened or a wear-resistant shim is installed in the contact area to improve its wear resistance under high-frequency contact impact. When the limiting fit is made, the contact between the rolling bearing 20 and the fixed baffle 2 is a line contact or a point contact. The contact stress is within the allowable range of the material and will not cause plastic deformation or fatigue failure.

[0060] In this invention, during operation, the drive motor 7 drives the transmission 9 to operate via the first synchronous belt 8, and the output shaft of the transmission 9 drives the mold roller 1 to rotate via the turntable to complete the mold slot switching operation. At the same time, the drive motor 7 drives the eccentric wheel 10 to rotate through the second synchronous belt 11. The eccentric wheel 10 drives the swing arm 12 to swing back and forth around its own rotation axis. The filling component 5 and the powder bead feeding component 6 swing synchronously with the swing arm 12 to form a follow-up area.

[0061] When the swing arm 12 swings to the right, the sliding plate 3, under the elastic restoring force of the compression spring 24, drives the guide shaft 21 to slide along the linear bearing 23 and move towards the material drop head base plate 14. At this time, the rolling bearing 20 is separated from the fixed baffle 2, and the second discharge hole 18 on the cover plate 4 is coaxially aligned with the first discharge hole 16 on the discharge head base plate 14. The mechanism is in the second working state. The powder beads inside the storage box 13 pass through the conical hole 15, the first discharge hole 16, and the second discharge hole 18 in sequence and fall into the mold groove of the mold roller 1 to complete the discharge process. When the swing arm 12 swings to the left, the sliding plate 3 moves to the left in sync with the powder feeder 6 until the rolling bearing 20 contacts the fixed baffle 2 and is limited. The sliding plate 3 and the cover plate 4 then stop moving, while the dropping head base plate 14 continues to move to the left with the swing arm 12, and the compression spring 24 is compressed and stores energy.

[0062] At this time, the second discharge hole 18 on the cover plate 4 is offset from the first discharge hole 16, the mechanism switches to the first working state, the discharge port is closed, the discharge action stops, and the external feeding mechanism simultaneously replenishes powder beads into the storage box 13.

[0063] By repeating the above reciprocating swing process, the equipment can continuously follow the material feeding. During the overall follow-up swing process, the mechanism relies on the limiting cooperation between the fixed baffle 2 and the rolling bearing 20, combined with the elastic reset effect of the compression spring 24, to automatically complete the opening and closing of the feeding port without the need for an additional independent power source.

[0064] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for feeding and discharging powdered materials in a quantitative manner, comprising a mold roller (1), an eccentric wheel (10), a second synchronous belt (11), and an elastic linkage component, characterized in that, Also includes: A fixed baffle (2) is slidably connected to a sliding plate (3), and a cover plate (4) for blocking material is fixedly connected to the sliding plate (3). The drive mechanism is used to provide power to the follow-up quantitative feeding and unloading device for powder beads. The filling component (5) and the powder bead feeding component (6) are connected by an elastic linkage component. When the driving mechanism drives the filling component (5) and the powder bead feeding component (6) to swing, the cover plate (4) cooperates with the powder bead feeding component (6) to form a follow-up dropping area.

2. The following is a method for feeding and discharging powdered materials according to claim 1: The method is characterized in that... The driving mechanism includes a drive motor (7), the output end of which is connected to a transmission device (9) via a first synchronous belt (8), and the output shaft of the transmission device (9) contacts the mold roller (1) via a turn wheel. When the drive motor (7) works in conjunction with the first synchronous belt (8), the mold roller (1) rotates under the action of the turn wheel to form a switching zone for the mold slot.

3. The following is a method for feeding and discharging powdered materials according to claim 2: The method is characterized in that... The output end of the drive motor (7) is connected to the eccentric wheel (10) via the second synchronous belt (11) to form a transmission zone. The side of the mold roller (1) is rotatably connected to a swing arm (12). The end of the swing arm (12) is connected to the eccentric wheel (10) to form a swing zone. The filling component (5) is located above the mold roller (1) and is connected to the swing arm (12). The powder bead feeder (6) is located on the side of the filling component (5) and above the mold roller (1), and is connected to the swing arm (12) via a connecting rod.

4. The following is a method for feeding and discharging powdered materials according to claim 3: The method is characterized in that... The powder bead feeder (6) includes a storage box (13). The discharge port of the storage box (13) is fixedly equipped with a discharge head substrate (14) for distributing materials. The discharge head substrate (14) is provided with conical holes (15) for discharging materials at equal intervals. The bottom of the discharge head substrate (14) is provided with a first discharge hole (16) that matches the conical hole (15), and the first discharge hole (16) is connected to the conical hole (15). The discharge head substrate (14) is provided with multiple sets of insertion slots (17), and the multiple sets of insertion slots (17) are located between the first discharge hole (16) and the conical hole (15).

5. The following is a method for feeding and discharging powdered materials according to claim 4: characterized in that... The cover plate (4) is located on the side of the sliding plate (3) near the material drop head base plate (14). There are multiple sets of the cover plate (4), and the multiple sets of the cover plate (4) are set with corresponding insertion slots (17). The cover plate (4) is provided with a second discharge hole (18) that matches the first discharge hole (16).

6. The following is a method for feeding and discharging powdered materials according to claim 5: characterized in that... The sliding plate (3) is symmetrically equipped with hinge frames (19) on one side, and rolling bearings (20) are rotatably connected in both sets of hinge frames (19). In the first working state, the rolling bearing (20) is in a limiting fit with the fixed baffle (2); In the second working state, the rolling bearing (20) is separated from the fixed baffle (2).

7. The following is a method for feeding and discharging powdered materials according to claim 4: characterized in that... The elastic linkage component includes guide shafts (21) symmetrically mounted on the sliding plate (3). There are two sets of guide shafts (21) on each side. Placement holes (22) are provided on the blanking head base plate (14) corresponding to the guide shafts (21). Linear bearings (23) are fixedly installed in the placement holes (22). The guide shafts (21) are slidably assembled in the linear bearings (23) to form a follow-up sliding area.

8. The following is a method for feeding and discharging powder beads according to claim 7: characterized in that... One of the guide shafts (21) is fitted with a compression spring (24), and the two ends of the compression spring (24) are respectively connected to the base plate outside the sliding plate (3) and the linear bearing (23) to form an elastic reset area.

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