Washing powder packaging device and method

Abstract

The present invention proposes a washing powder packaging device and method, which belongs to the field of packaging technology and aims to solve the problem of dust being difficult to handle in the packaging production of boxed washing powder in the prior art. The device and method comprise: a conveyor, a silo, a sealing plate, and a transmission device. The silo is supported above the conveyor by a bracket, and a discharge shell connected to the bottom of the silo is provided. A roller is rotatably connected to the discharge shell via a rotating shaft, and the rotating shaft is driven by a motor. A material storage trough is provided on the side wall of the roller. The sealing plate is slidably sleeved on the side wall of the discharge shell and elastically connected to the side wall of the sealing plate via a first elastic member. The transmission device transmits the rotating shaft to the sealing plate. In the present invention, the linkage design of the transmission device, the sealing plate, and the rotating shaft forms a dynamic closed loop of "sealing upon unloading," which effectively suppresses the spillage of dust generated when the washing powder falls, thereby improving the workshop environment.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging, and particularly relates to a washing powder packaging device and method. Background Art

[0002] In the packaging production of boxed laundry detergent, loading is one of the core processes. Currently, the industry's commonly used loading process is: empty boxes are conveyed to the bottom of a silo via a conveyor, and the laundry detergent in the silo falls freely by gravity to fill the empty boxes. However, this process has serious dust pollution problems:

[0003] 1. When detergent particles fall from the silo outlet (usually 100-300mm above the hopper opening), the relative motion between the particles and the air causes airflow disturbances. Simultaneously, collisions and friction between the particles break some of the particles into dust. This dust is raised in large quantities at the moment of filling. For example, for particles ≤10μm in size, its diffusion radius within the workshop can reach 2-3m, deteriorating the air quality.

[0004] 2. Dust not only adheres to the surface of equipment (such as conveyors and carton sealing machines, increasing equipment cleaning frequency and maintenance costs by 30%), but also settles on the floor and walls of the workshop, forming dust accumulation that is difficult to clean, increasing the cleaning burden of the workshop; more seriously, operators are exposed to dust environments for a long time, and their occupational health risks increase significantly. Summary of the Invention

[0005] In view of this, the present invention provides a washing powder packaging device and method to solve the problem of difficulty in handling dust in the packaging production of boxed washing powder in the prior art.

[0006] The technical solution adopted in the present invention is as follows:

[0007] A washing powder packaging device, comprising:

[0008] Conveyor, used to transport packaging boxes;

[0009] A silo is supported above the conveyor by a bracket, and a discharge shell is provided at the bottom of the silo and connected thereto. A roller is rotatably connected to the discharge shell via a rotating shaft, and the rotating shaft is driven by a motor. A storage trough is provided on the side wall of the roller;

[0010] a sealing plate, which is slidably sleeved on the side wall of the discharge shell and elastically connected to the side wall of the discharge shell via a first elastic member;

[0011] The transmission device connects the rotating shaft with the sealing plate. When the rotating shaft drives the storage trough on the roller to rotate to a downward position, the rotating shaft drives the sealing plate to move downward through the transmission device to support the packaging box located below the sealing plate.

[0012] In this technical solution, it should be noted that the conveyor is used to transport packaging boxes, continuously transporting empty boxes to the loading station below the silo to ensure that the packaging boxes are accurately in place for loading. The silo is supported above the conveyor by a bracket, and a discharge shell connected to the silo is provided at its bottom. The discharge shell is connected to a roller through a rotating shaft, and the shaft is driven by a motor. The storage trough on the side wall of the roller is used to scoop up the washing powder. The quantitative material removal and discharge are achieved through the rotation of the roller, ensuring that the amount of washing powder dropped into the packaging box is consistent each time. The sealing plate is slidably mounted on the side wall of the discharge shell and elastically connected to the side wall of the discharge shell through a first elastic member. Its function is to resist the opening of the packaging box during loading to prevent the dust generated when the washing powder falls from the box from escaping. The elastic member allows the sealing plate to be reset when not loading. The transmission connects the rotating shaft to the sealing plate. When the shaft drives the hopper on the roller to the downward position, the shaft drives the sealing plate downward through the transmission, causing it to tightly contact the packaging box below, forming a seal and preventing dust from rising. The detergent powder in the hopper falls into the packaging box through the discharge shell. After the hopper rotates away from the discharge position, the sealing plate moves upward under the action of the elastic member, releasing the loaded packaging box, completing the loading process. The overall working principle is as follows: the motor drives the rotating shaft to rotate the roller. The hopper on the roller scoops the detergent powder in the hopper during rotation. When the hopper rotates to the downward position, the transmission moves the sealing plate downward to contact the packaging box opening, allowing the detergent powder in the hopper to fall into the packaging box, completing the quantitative loading process. After loading is completed, the roller continues to rotate, the hopper moves away from the discharge position, and the sealing plate returns to its original position under the action of the elastic member. The conveyor removes the full packaging box and simultaneously transports the next empty packaging box to the loading position, and the cycle repeats. The beneficial effect of this device lies in the fact that, through the linkage design of the mechanical structure, it achieves the synchronization of material discharge and sealing during the loading process. The transmission device mechanically links the movement of the rotating shaft and the sealing plate, achieving synchronization with a purely mechanical structure, forming a dynamic closed loop of "discharging and sealing". This effectively suppresses the dust spillage generated by the falling detergent powder and improves the workshop environment.

[0013] Preferably, the transmission device includes an abutment plate, which is connected to the rotating shaft through a connecting frame, and the abutment plate is located on the outside of the discharge shell and above the sealing plate. The distance between the abutment plate and the rotating shaft is greater than the vertical distance between the sealing plate and the rotating shaft. The distance between the abutment plate and the rotating shaft is greater than the distance between the slot of the storage trough and the rotating shaft, and the abutment plate is located on one side in the length direction of the storage trough.

[0014] In this technical solution, it should be noted that the abutment plate in the transmission device is rigidly connected to the rotating shaft via a connecting frame and rotates synchronously with the rotating shaft. It is located outside the discharge housing and directly above the sealing plate. Mechanical transmission is achieved through a specific spatial layout design: the radial distance between the abutment plate and the rotating shaft is greater than the vertical distance between the sealing plate and the rotating shaft, and also greater than the distance between the hopper notch and the rotating shaft. This increases the radius of the abutment plate's motion trajectory during rotation, allowing it to compress the sealing plate downward when the hopper rotates to a downward position. The abutment plate is positioned along one side of the hopper's length. When the hopper rotates to the discharge angle, the abutment plate rotates into contact with the sealing plate, pushing the sealing plate downward along the sidewall of the discharge housing, compressing a first elastic member (e.g., a spring) and forcing the sealing plate to tightly contact the packaging box opening below, creating a sealed state. At this point, the hopper notch is aligned with the packaging box opening, allowing the detergent to fall into the box under the action of gravity. Because the sealing plate has already abutted the box opening, dust generated during the fall is confined within the sealed space and prevented from escaping. As the shaft continues to rotate, the hopper moves away from the unloading position, and the abutment plate synchronously rotates to a position away from the sealing plate. The sealing plate, under the restoring force of the first elastic member, returns upward, releasing the package, completing the loading and sealing process. This structural design utilizes the geometric size differences and spatial layout of mechanical components to convert the shaft's circular motion into linear reciprocating motion of the sealing plate. The hopper seal is achieved solely through the positioning of the abutment plate and the rigidity of the connecting frame.

[0015] Preferably, the abutment plate is arranged along the circumference of the roller, so that the abutment plate has an arc-shaped structure and has the same center as the roller.

[0016] In this technical solution, it should be noted that the abutment plate is arranged as an arc structure along the circumference of the roller and is concentric with the roller, forming a concentric arc guide structure around the roller. During the rotation of the roller, the arc edge of the abutment plate forms a progressive extrusion relationship with the top contact area of ​​the sealing plate: when the storage trough rotates to the unloading position with the roller, the arc front end of the abutment plate first contacts the top of the sealing plate. As the roller continues to rotate, the tangential direction component of the arc structure pushes the sealing plate to slide downward along the side wall of the discharge shell, compressing the first elastic member and making the sealing plate press against the opening of the packaging box. Since the abutment plate is concentric with the roller, the contact track of its arc edge with the sealing plate during rotation is a circular arc. Within this arc segment, the abutment plate maintains continuous contact with the sealing plate, ensuring that the sealing plate always forms a stable sealing interface during the entire process of unloading from the storage trough (that is, before the abutment plate is separated from the sealing plate). The core advantage of this arc-shaped design lies in the continuity and stability of the contact force: unlike the instantaneous impact transmission of a linear abutment plate, the arc-shaped structure ensures that the sealing plate remains in a constant state of contact after being pressed against the abutment plate, ensuring that the dust is completely confined within the sealed space during the falling process of the detergent powder. In addition, the concentric layout ensures that the contact points between the abutment plate and the sealing plate are always distributed along the radial direction of the roller, and the force transmission direction is perpendicular to the movement trajectory of the sealing plate, reducing the lateral force component. Through the coordinated design of geometric shape and movement trajectory, this structure converts the circular motion of the roller into the stable linear motion of the sealing plate. Utilizing the constant force transmission characteristics of the concentric arc, it achieves the effect of "one-time extrusion, full sealing", ensuring that the sealing plate continuously presses against the packaging box during the loading process, fundamentally suppressing dust spillage.

[0017] Preferably, both ends of the abutment plate are located on both sides of the width direction of the material storage trough.

[0018] It should be noted that the abutment plates, with their ends located on either side of the trough's width, are designed to achieve early triggering of the sealing action through their advanced spatial positioning. Specifically, the trough is radially arranged on the roller's sidewall (e.g., with the notch facing upward when in a vertically upward position), and the abutment plates, arc-shaped structures, extend to either side of the trough and are positioned 10°-30° ahead of the trough's centerline. When the roller drives the trough from its vertically upward position, the abutment plates rotate synchronously with the roller. Because their ends are located on either side of the trough and their circumferentially advanced position, when the trough has only rotated 90° (i.e., with the notch facing upward to horizontally facing sideways), the abutment plates have already rotated above and contacted the sealing plate, pushing the sealing plate downward. Before the trough rotates 180°, the sealing plate has already abutted against the packaging box opening, creating a sealed space. The core advantage of this design lies in the advanced control of the action sequence. By extending the abutment plate on both sides, this solution advances the downward pressure of the sealing plate to when the hopper rotates 90° or before 90°. This ensures that when the hopper continues to rotate to the 180° unloading position, the sealing plate is fully pressed against the box opening, achieving the ideal timing of "sealing first, unloading later." Through the innovative combination of geometric layout and motion phase, this design achieves "advanced response" of mechanical linkage, which not only solves the problem of unrestrained dust overflow in the initial stage of unloading.

[0019] Preferably, the connecting frame is connected to the rotating shaft via a one-way bearing.

[0020] In this technical solution, it should be noted that the connecting frame is connected to the rotating shaft via a one-way bearing. This design utilizes the directional transmission characteristics of the one-way bearing to achieve adaptive switching of the device for different packaging formats. The one-way bearing (such as a wedge-type one-way clutch) is locked in the counterclockwise direction (defined as the box packaging mode), forming a rigid connection between the connecting frame and the rotating shaft. The torque of the rotating shaft is transmitted to the connecting frame and the abutment plate through the one-way bearing, driving them to rotate synchronously. At this time, the abutment plate drives the sealing plate downward according to the timing control logic described above to achieve sealed unloading of the packaging box. In the clockwise direction (bag packaging mode), the one-way bearing is in a free state, the connecting frame is separated from the rotating shaft, the abutment plate no longer rotates with the rotating shaft, and remains stationary. The sealing plate no longer presses down, thereby avoiding interference with the bag packaging process. The core advantage of this design is that the same device is compatible with two packaging modes: 1. Box mode (counterclockwise rotation): The one-way bearing is locked, and the abutment plate rotates synchronously with the roller. When the storage hopper rotates to the unloading position, the abutment plate pushes the sealing plate downward through the curved edge or extended structure to form a sealed space, ensuring that dust does not escape from the boxed laundry detergent during the loading process. 2. Bag mode (clockwise rotation): The one-way bearing is disengaged, the abutment plate is stationary, and the sealing plate no longer presses down, making it easier for workers to drop the laundry detergent directly into the packaging bag. This avoids squeezing and deformation of the flexible bag opening by the rigid sealing plate. This technical solution achieves mode switching through a single mechanical component, allowing the device to flexibly adapt between box and bag packaging formats. It maintains the dust suppression advantages of the box mode while meeting the open unloading requirements of the bag mode, providing a minimalist and reliable solution for the multifunctionalization of laundry detergent packaging equipment.

[0021] Preferably, a vacuum cleaner is provided on one side of the conveyor, and the air inlet end of the vacuum cleaner is connected to a pipe; a vacuum port connected to the interior of the sealing plate is penetrated through one side of the sealing plate, and the vacuum port is connected to the pipe.

[0022] In this technical solution, it should be noted that the vacuum cleaner installed on one side of the conveyor is connected to the dust suction port inside the sealing plate through a pipe, forming a dust treatment closed loop of "sealed space-dust suction channel-negative pressure source". Specifically, the vacuum cleaner (such as a centrifugal fan) is connected to the dust suction port on the side wall of the sealing plate through the air inlet end pipe. When the sealing plate is pressed against the packaging box, the dust suction port is directly connected to the space inside the box, forming a close-range dust capture area. The working principle is as follows: when the sealing plate moves down with the transmission device and presses against the opening of the packaging box, the dust suction port is just aligned with the upper space inside the box, and the vacuum cleaner is started synchronously, forming a local negative pressure inside the box. The dust generated when the washing powder in the storage hopper falls is directly sucked into the dust suction port due to the negative pressure, and is transported through the pipe to the filtration system of the vacuum cleaner (such as a bag dust collector), realizing real-time collection and treatment of dust.

[0023] Preferably, a push-type switch cooperating with the abutment plate is provided on the side wall of the discharge shell. When the storage trough rotates from a vertical downward state to a vertical upward state, the abutment plate can squeeze the push-type switch, so that the vacuum cleaner electrically connected to the push-type switch is started.

[0024] In this technical solution, it should be noted that the push-type switch and the abutment plate form a linkage trigger structure. The core of this structure is to control the start and stop of the vacuum cleaner through the timing of the circular motion of the abutment plate, thereby achieving precise dust treatment. The push-type switch is installed on the outside of the discharge shell, and its position corresponds to the upper dead center area of ​​the abutment plate's rotation trajectory (that is, the path that the abutment plate must take when it rotates 180° with the rotating shaft during the process of the storage hopper rotating from vertical downward to vertical upward). When the storage hopper completes unloading and rotates upward, the abutment plate rotates synchronously with the rotating shaft. When its edge rotates to a certain range between 270° and 360°, it squeezes the push-type switch (at this time, the sealing plate and the abutment plate have not yet separated), causing the switch contacts to close, thereby connecting the vacuum cleaner circuit (such as a 24V DC motor). The vacuum cleaner starts and extracts residual dust from the sealing plate suction port and the surrounding area through the pipeline.

[0025] Preferably, the push-type switch includes a shell, a button and a pressure sensor, the button is slidably connected in the shell and elastically connected to the shell through a second elastic member, one end of the button extends outside the shell, and the end of the button is provided with a guide surface that contacts and cooperates with the abutment plate, the guide surface is arranged at an angle, and the pressure sensor is arranged in the shell, and the pressure sensor is located on one side of the button.

[0026] In this technical solution, it should be noted that the push-type switch achieves precise response to the rotational movement of the abutment plate through the integrated design of the mechanical structure and sensor. The housing serves as the supporting body, with the pushbutton slidably connected internally. The pushbutton is elastically connected to the housing via a second elastic member (such as a spring), ensuring that the pushbutton remains extended when not subjected to external force. A guide surface at the end of the pushbutton forms linear contact with the curved edge of the abutment plate. When the abutment plate rotates with the roller to the trigger position, the guide surface is squeezed by the abutment plate, decomposing the tangential force of the circular motion into a component perpendicular to the axis of the pushbutton, pushing the pushbutton to slide into the housing, overcoming the spring resistance. A pressure sensor within the housing is located on one side of the pushbutton's sliding path. When the pushbutton slides to the set position, its side contacts the pressure sensor and applies pressure. The pressure sensor converts the mechanical force into an electrical signal, activating the vacuum cleaner. The second elastic member provides a reset force after the abutment plate moves away, returning the pushbutton to its initial position. The pressure sensor signal disappears, disconnecting the circuit. This design achieves a progressive triggering process by optimizing the inclination angle of the guide surface, avoiding signal fluctuations caused by instantaneous impact; the structure converts the displacement and force changes of mechanical movement into electrical signal output, and through the synergistic effect of the guide surface-elastic part-sensor, provides a trigger mechanism for the intelligent control of the vacuum cleaner.

[0027] Preferably, a rubber layer is provided on the bottom of the sealing plate.

[0028] In this technical solution, it should be noted that the sealing performance is increased by providing a rubber layer.

[0029] A method for packaging washing powder comprises: a motor drives a rotating shaft to rotate a rotating roller, a storage trough on the rotating roller scoops washing powder in a hopper during the rotation process, when the storage trough rotates to a downward position, a transmission device causes a sealing plate to move downward to abut against the opening of a packaging box, at which time the washing powder in the storage trough falls into the box, achieving quantitative loading, after loading is completed, the rotating roller continues to rotate, the storage trough leaves the unloading position, the sealing plate returns to its original position under the action of an elastic member, the conveyor transports the filled packaging box away, and simultaneously transports the next empty box to the loading position, and the cycle continues.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. This invention achieves synchronized unloading and sealing during the loading process through the linkage design of the transmission device, sealing plate, and rotating shaft. The transmission device mechanically links the movement of the rotating shaft and sealing plate, achieving synchronized action with a purely mechanical structure, forming a dynamic closed loop of "unloading and sealing." This effectively suppresses dust spillage generated by the falling detergent powder and improves the workshop environment.

[0032] 2. In the present invention, the geometric size difference and spatial layout of the mechanical components are utilized to convert the circular motion of the rotating shaft into the linear reciprocating motion of the sealing plate. The sealing function of the storage tank is achieved only through the position setting of the abutment plate and the rigid conduction of the connecting frame.

[0033] 3. In the present invention, the abutment plate is arranged along the circumference of the roller. Through the coordinated design of geometric shape and motion trajectory, the circular motion of the roller is converted into stable linear motion of the sealing plate. The constant force conduction characteristics of the concentric arc are utilized to achieve the effect of "one-time extrusion, full-process sealing", ensuring that the sealing plate continues to press against the packaging box during the loading process, fundamentally suppressing dust overflow.

[0034] 4. In the present invention, by extending the layout on both sides of the abutment plate, the downward pressing action of the sealing plate is advanced to start when the storage trough rotates 90° or before 90°, ensuring that when the storage trough continues to rotate to the 180° unloading position, the sealing plate has completely pressed against the box opening, realizing the ideal timing of "sealing first, then unloading".

[0035] 5. In the present invention, the provision of a one-way bearing enables the device to flexibly adapt between boxed and bagged packaging formats, maintaining the dust suppression advantage of the boxed mode while meeting the open unloading requirements of the bagged mode, providing a minimalist and reliable solution for the multifunctionalization of laundry detergent packaging equipment.

[0036] 6. In the present invention, the push-type switch and the abutment plate form a linkage trigger structure, the core of which is to control the start and stop of the vacuum cleaner through the circular motion sequence of the abutment plate to achieve precise dust treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0038] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the three-dimensional structure of the discharge shell and the packaging box of the present invention;

[0040] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the discharge shell after it is cut open;

[0041] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure after the transfer roller is rotated 90° counterclockwise;

[0042] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure after the transfer roller rotates counterclockwise less than 90°;

[0043] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure after the transfer roller rotates to contact the push switch;

[0044] Figure 7 is a schematic cross-sectional perspective structural diagram of the push-type switch of the present invention;

[0045] Figure 8 It is a schematic diagram of the three-dimensional structure of the sealing plate and the vacuum cleaner of the present invention.

[0046] Among them: 1- silo, 2- discharge shell, 3- conveyor, 4- packaging box, 5- vacuum cleaner, 6- sealing plate, 7- first elastic member, 8- abutment plate, 9- connecting frame, 10- rotating shaft, 11- one-way bearing, 12- storage trough, 13- roller, 14- push-type switch, 15- housing, 16- button, 17- guide surface, 18- pressure sensor, 20- pipe, 21- vacuum port. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0049] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0051] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0052] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0053] Example 1

[0054] like Figures 1-8 As shown, an embodiment of the present invention discloses a washing powder packaging device, comprising:

[0055] Conveyor 3, for conveying packaging boxes 4;

[0056] The silo 1 is supported above the conveyor 3 by a bracket, and a discharge shell 2 is provided at the bottom of the silo 1 and connected thereto. A roller 13 is rotatably connected to the discharge shell 2 via a rotating shaft 10. The rotating shaft 10 is driven by a motor, and a storage trough 12 is provided on the side wall of the roller 13.

[0057] A sealing plate 6 is slidably mounted on the side wall of the discharge housing 2 and elastically connected to the side wall of the discharge housing 2 via a first elastic member 7;

[0058] The transmission device connects the rotating shaft 10 with the sealing plate 6. When the rotating shaft 10 drives the storage trough 12 on the roller 13 to rotate to a downward position, the rotating shaft 10 drives the sealing plate 6 to move downward through the transmission device to support the packaging box 4 located below the sealing plate 6.

[0059] It should be noted that the conveyor 3 is used to transport the packaging boxes 4, continuously transporting the empty boxes to the loading station below the silo 1, to ensure that the packaging boxes 4 are accurately in place for loading. The silo 1 is supported above the conveyor 3 by a bracket, and a discharge shell 2 connected to the silo 1 is provided at its bottom. The discharge shell 2 is connected to the roller 13 through a rotating shaft 10. The rotating shaft 10 is driven by a motor. The storage trough 12 on the side wall of the roller 13 is used to scoop up the washing powder. The quantitative material removal and discharge are achieved through the rotation of the roller 13, ensuring that the amount of washing powder dropped into the packaging box 4 is consistent each time. The sealing plate 6 is slidably mounted on the side wall of the discharge shell 2 and is elastically connected to the side wall of the discharge shell 2 through the first elastic member 7. Its function is to resist the opening of the packaging box 4 during loading to prevent the dust generated when the washing powder falls from the packaging box 4 from overflowing. The elastic member allows the sealing plate 6 to be reset when not loading. The transmission device connects the rotating shaft 10 with the sealing plate 6. When the rotating shaft 10 drives the storage trough 12 on the roller 13 to rotate to the downward position, the rotating shaft 10 drives the sealing plate 6 to move downward through the transmission device, so that the sealing plate 6 is tightly against the packaging box 4 below to form a seal to prevent dust from being raised. The washing powder in the storage trough 12 falls into the packaging box 4 through the discharge shell 2. After the storage trough 12 rotates away from the unloading position, the sealing plate 6 moves upward under the action of the elastic member, releasing the loaded packaging box 4, completing a loading process. The overall working principle is as follows: the motor drives the rotating shaft 10 to drive the roller 13 to rotate. The storage trough 12 on the roller 13 scoops the washing powder in the silo 1 during the rotation process. When the storage trough 12 rotates to the downward position, the transmission device causes the sealing plate 6 to move downward to press against the opening of the packaging box 4. At this time, the washing powder in the storage trough 12 falls into the box to achieve quantitative loading. After loading is completed, the roller 13 continues to rotate, the storage trough 12 leaves the unloading position, and the sealing plate 6 is reset under the action of the elastic member. The conveyor 3 sends the full packaging box 4 away and at the same time conveys the next empty box to the loading position, and the cycle continues. The beneficial effect of this device is that the linkage design of the mechanical structure realizes the synchronous action of unloading and sealing during the loading process. The transmission device mechanically links the movement of the rotating shaft 10 and the sealing plate 6, realizing synchronous action with a purely mechanical structure, forming a dynamic closed loop of "unloading and sealing". It effectively suppresses the dust overflow generated when the washing powder falls, and improves the workshop environment.

[0060] In this embodiment, a rubber layer is provided at the bottom of the sealing plate 6. It should be noted that the rubber layer is provided to improve the sealing performance.

[0061] like Figure 3As shown, in this embodiment, the transmission device includes an abutment plate 8, which is connected to the rotating shaft 10 through a connecting frame 9. The abutment plate 8 is located on the outside of the discharge shell 2 and above the sealing plate 6. The distance between the abutment plate 8 and the rotating shaft 10 is greater than the vertical distance between the sealing plate 6 and the rotating shaft 10. The distance between the abutment plate 8 and the rotating shaft 10 is greater than the distance between the notch of the storage trough 12 and the rotating shaft 10, and the abutment plate 8 is located on one side of the length direction of the storage trough 12. It should be noted that the abutment plate 8 in the transmission device is rigidly connected to the rotating shaft 10 through the connecting frame 9, and rotates synchronously with the rotating shaft 10. Its position is located outside the discharge shell 2 and directly above the sealing plate 6. Mechanical transmission is achieved through a specific spatial layout design: the radial distance between the abutment plate 8 and the rotating shaft 10 is greater than the vertical distance between the sealing plate 6 and the rotating shaft 10, and is also greater than the distance between the notch of the storage trough 12 and the rotating shaft 10, so that the radius of the movement trajectory of the abutment plate 8 during rotation is larger, and it can squeeze the sealing plate 6 to move downward when the storage trough 12 rotates to the downward position. The abutment plate 8 is set on one side of the length direction of the storage trough 12. When the storage trough 12 rotates to the unloading angle, the abutment plate 8 just rotates to contact the sealing plate 6, which pushes the sealing plate 6 to slide downward along the side wall of the discharge shell 2, compressing the first elastic member 7 (such as a spring) and making the sealing plate 6 tightly press against the bottom packaging box 4, forming a sealed state. At this time, the notch of the material storage trough 12 is aligned with the opening of the packaging box 4, and the washing powder falls into the box under the action of gravity. Since the sealing plate 6 has been pressed against the box opening in advance, the dust generated during the falling process is confined in the sealed space and cannot overflow. When the rotating shaft 10 continues to rotate, the material storage trough 12 leaves the unloading position, and the abutment plate 8 rotates synchronously to a position away from the sealing plate 6. The sealing plate 6 resets upward under the restoring force of the first elastic member 7, releasing the packaging box 4, completing a loading-sealing linkage process. This structural design utilizes the geometric size difference and spatial layout of the mechanical components to convert the circular motion of the rotating shaft 10 into the linear reciprocating motion of the sealing plate 6. The sealing function of the material storage trough 12 is achieved only through the position setting of the abutment plate 8 and the rigid conduction of the connecting frame 9.

[0062] like Figure 3-Figure 6As shown, in this embodiment, the abutment plate 8 is arranged along the circumference of the rotating roller 13, so that the abutment plate 8 has an arc-shaped structure and is concentric with the rotating roller 13. It should be noted that the abutment plate 8 is arranged along the circumference of the rotating roller 13 as an arc-shaped structure and is concentric with the rotating roller 13, forming a concentric arc-shaped guide structure around the rotating roller 13. During the rotation of the roller 13, the arc-shaped edge of the abutment plate 8 forms a progressive extrusion relationship with the top contact area of ​​the sealing plate 6: when the storage trough 12 rotates to the unloading position with the roller 13, the arc-shaped front end of the abutment plate 8 first contacts the top of the sealing plate 6. As the roller 13 continues to rotate, the tangential direction component of the arc structure pushes the sealing plate 6 to slide downward along the side wall of the discharge shell 2, compressing the first elastic member 7 and making the sealing plate 6 press against the opening of the packaging box 4; since the abutment plate 8 is concentric with the roller 13, the contact trajectory of its arc-shaped edge with the sealing plate 6 during rotation is a circular arc. Within this arc segment, the abutment plate 8 maintains continuous contact with the sealing plate 6, ensuring that the sealing plate 6 always forms a stable sealing interface during the entire process of unloading from the storage trough 12 (that is, before the abutment plate 8 is separated from the sealing plate 6). The core advantage of this arc-shaped design lies in the continuity and stability of the contact force: unlike the instantaneous impact transmission of the linear abutment plate 8, the arc-shaped structure ensures that the sealing plate 6 is always in a pressed state after being pressed by the abutment plate 8, ensuring that the dust is completely confined within the sealed space during the falling process of the detergent powder. In addition, the concentric layout ensures that the contact points between the abutment plate 8 and the sealing plate 6 are always distributed along the radial direction of the roller 13, and the force transmission direction is perpendicular to the motion trajectory of the sealing plate 6, reducing the lateral force component. Through the coordinated design of the geometric shape and the motion trajectory, this structure converts the circular motion of the roller 13 into the stable linear motion of the sealing plate 6. By utilizing the constant force transmission characteristics of the concentric arc, the effect of "one-time extrusion, full-process sealing" is achieved, ensuring that the sealing plate 6 is continuously pressed against the packaging box 4 during the loading process, fundamentally suppressing dust spillage.

[0063] like Figure 3-Figure 6As shown, in this embodiment, the ends of the abutment plate 8 are located on either side of the width of the trough 12. It should be noted that the core design of the abutment plate 8, which is located on either side of the width of the trough 12, is to achieve early triggering of the sealing action through advanced spatial positioning. Specifically, the trough 12 is radially arranged on the sidewall of the roller 13 (e.g., when vertically pointing upward), and the abutment plate 8 is an arc-shaped structure with its ends extending to both sides of the trough 12 and arranged circumferentially 10°-30° ahead of the centerline of the trough 12. When the roller 13 drives the hopper 12 to rotate from its vertically upward position, the abutment plate 8 rotates synchronously with the roller 13. Because its ends are located on either side of the hopper 12 and are circumferentially ahead, when the hopper 12 rotates only 90° (i.e., the slot opening turns from upward to horizontal and sideways), the abutment plate 8 has already rotated above the sealing plate 6 and made contact with it, pushing the sealing plate 6 downward. Before the hopper 12 rotates to the 180° position, the sealing plate 6 has already abutted against the opening of the packaging box 4, forming a sealed space. The core advantage of this design lies in the advanced control of the action sequence. By extending the abutment plate 8 on both sides, the downward pressure of the sealing plate 6 is initiated in advance when the hopper 12 rotates 90° or before. This ensures that when the hopper 12 continues to rotate to the 180° unloading position, the sealing plate 6 is fully abutted against the box opening, achieving the ideal timing of "sealing first, unloading later." This design achieves "early response" of mechanical linkage through an innovative combination of geometric layout and motion phase, which not only solves the problem of unrestrained dust overflow in the initial stage of material discharge.

[0064] Example 2

[0065] like Figure 2As shown, this embodiment is substantially the same as the above-described embodiment, differing in that the connecting frame 9 is connected to the rotating shaft 10 via a one-way bearing 11. It should be noted that this connection of the connecting frame 9 to the rotating shaft 10 via the one-way bearing 11 utilizes the directional transmission characteristics of the one-way bearing 11 to enable the device to adaptively switch between different packaging formats. When rotating counterclockwise (defined as the box packaging mode), the one-way bearing 11 (e.g., a wedge-type one-way clutch) locks, forming a rigid connection between the connecting frame 9 and the rotating shaft 10. The torque of the rotating shaft 10 is transmitted through the one-way bearing 11 to the connecting frame 9 and the abutment plate 8, driving them to rotate synchronously. At this point, the abutment plate 8, according to the timing control logic described above, drives the sealing plate 6 downward to seal and discharge the packaging box 4. In the clockwise direction (the bag packaging mode), the one-way bearing 11 is free, the connecting frame 9 is separated from the rotating shaft 10, the abutment plate 8 no longer rotates with the rotating shaft 10, and remains stationary. The sealing plate 6 no longer presses downward, thus preventing interference with the bag packaging process. The core advantage of this design lies in its ability to accommodate two packaging modes within the same device: 1. Cartoning mode (counterclockwise rotation): The one-way bearing 11 is locked, and the abutment plate 8 rotates synchronously with the roller 13. When the hopper 12 rotates to the unloading position, the abutment plate 8, through its curved edge or extended structure, pushes the sealing plate 6 downward, creating a sealed space and preventing dust from escaping during the loading process. 2. Bagging mode (clockwise rotation): The one-way bearing 11 is disengaged, the abutment plate 8 is stationary, and the sealing plate 6 no longer presses downward, allowing workers to drop the detergent directly into the bag. This prevents the rigid sealing plate 6 from squeezing and deforming the flexible bag opening. This technical solution, which achieves mode switching through a single mechanical component, allows the device to flexibly adapt between cartoning and bagging. This maintains the dust suppression advantages of cartoning mode while meeting the open unloading requirements of bagging mode, providing a minimalist and reliable solution for the multifunctionality of detergent packaging equipment.

[0066] Example 3

[0067] like Figure 6 Shown and Figure 8As shown, this embodiment is substantially the same as the above-mentioned embodiment, differing in that a dust collector 5 is provided on one side of the conveyor 3, with a duct 20 connecting the air inlet end of the dust collector 5. A dust suction port 21 is provided on one side of the sealing plate 6, which is connected to the interior of the conveyor 3. This dust suction port 21 is connected to the duct 20. It should be noted that the dust collector 5 provided on the side of the conveyor 3 is connected to the dust suction port 21 inside the sealing plate 6 via the duct 20, forming a closed dust treatment loop consisting of "sealed space - dust suction channel - negative pressure source". Specifically, the dust collector 5 (e.g., a centrifugal fan) is connected to the dust suction port 21 on the side wall of the sealing plate 6 via the air inlet duct 20. When the sealing plate 6 abuts the packaging box 4, the dust suction port 21 is directly connected to the space inside the box, forming a close-range dust capture area. The operating principle is as follows: when the sealing plate 6 moves downward with the transmission mechanism to abut the opening of the packaging box 4, the dust suction port 21 is aligned with the upper space inside the box, and the dust collector 5 is activated simultaneously, creating a localized negative pressure inside the box. The dust generated when the washing powder in the storage tank 12 falls is directly sucked into the dust suction port 21 by the negative pressure, and is transported to the filtering system (such as a bag dust collector) of the vacuum cleaner 5 through the pipe 20, realizing real-time collection and treatment of the dust.

[0068] like Figure 7 As shown, in this embodiment, a push-type switch 14 that cooperates with the abutment plate 8 is provided on the side wall of the discharge shell 2. When the storage trough 12 rotates from a vertically downward state to a vertically upward state, the abutment plate 8 can squeeze the push-type switch 14, so that the vacuum cleaner 5 electrically connected to the push-type switch 14 is started. It should be noted that the push-type switch 14 and the abutment plate 8 form a linkage trigger structure, the core of which is to control the start and stop of the vacuum cleaner 5 through the circular motion sequence of the abutment plate 8 to achieve precise dust treatment. The push-type switch 14 is installed on the outside of the discharge shell 2, and its position corresponds to the upper dead center area of ​​the rotation trajectory of the abutment plate 8 (that is, the necessary path when the abutment plate 8 rotates 180° with the rotating shaft 10 during the process of the storage trough 12 rotating from vertically downward to vertically upward). When the material storage trough 12 completes unloading and rotates upward, the abutment plate 8 rotates synchronously with the rotating shaft 10, and its edge squeezes the push-type switch 14 when it rotates to a certain range between 270° and 360° (at this time, the sealing plate 6 and the abutment plate 8 have not yet separated), so that the switch contacts are closed, thereby connecting the circuit of the vacuum cleaner 5 (such as a 24V DC motor), and the vacuum cleaner 5 starts and extracts the residual dust in the dust suction port 21 of the sealing plate 6 and the surrounding area through the pipe 20.

[0069] like Figure 7As shown, in this embodiment, the push-type switch 14 includes a housing 15, a button 16, and a pressure sensor 18. The button 16 is slidably connected within the housing 15 and elastically connected to the housing 15 via a second elastic member. One end of the button 16 extends outside the housing 15, and the end of the button 16 is provided with a guide surface 17 that contacts and mates with the abutment plate 8. The guide surface 17 is arranged at an angle. The pressure sensor 18 is disposed within the housing 15 and is located on one side of the button 16. It should be noted that the push-type switch 14 achieves precise response to the rotational movement of the abutment plate 8 through the integrated design of the mechanical structure and sensor. The housing 15 serves as a supporting body and is slidably connected to the button 16. The button 16 is elastically connected to the housing 15 via a second elastic member (such as a spring), which ensures that the button 16 remains extended when no external force is applied. The guide surface 17 at the end of button 16 forms line contact with the curved edge of abutment plate 8. When abutment plate 8 rotates with roller 13 to the trigger position, guide surface 17 is squeezed by abutment plate 8, breaking down the tangential force of the circular motion into a force component perpendicular to the axis of button 16, pushing button 16 to slide into housing 15, overcoming the spring resistance. A pressure sensor 18 within housing 15 is located on one side of the sliding path of button 16. When button 16 slides to the set position, its side contacts and applies pressure to pressure sensor 18, which converts the mechanical force into an electrical signal, activating vacuum cleaner 5. A second elastic member provides a reset force after abutment plate 8 leaves, returning button 16 to its initial position. The signal from pressure sensor 18 disappears, disconnecting the circuit. This design, by optimizing the tilt angle of guide surface 17, achieves a gradual triggering process, avoiding signal fluctuations caused by instantaneous impacts. This structure converts mechanical displacement and force changes into electrical signal outputs. Through the synergistic action of guide surface 17, elastic member, and sensor, it provides a triggering mechanism for intelligent control of vacuum cleaner 5.

[0070] Example 4

[0071] This embodiment provides a method for packaging laundry detergent, including: a motor drives a rotating shaft 10 to rotate a roller 13, and a storage trough 12 on the roller 13 scoops the laundry detergent in the hopper 1 during the rotation process. When the storage trough 12 rotates to a downward position, the transmission device causes the sealing plate 6 to move downward to abut against the opening of the packaging box 4. At this time, the laundry detergent in the storage trough 12 falls into the box, realizing quantitative loading. After the loading is completed, the roller 13 continues to rotate, the storage trough 12 leaves the unloading position, the sealing plate 6 is reset under the action of the elastic member, and the conveyor 3 sends the full packaging box 4 away, and at the same time, the next empty box is conveyed to the loading position, and the cycle continues.

[0072] The working principle of the present invention is:

[0073] Conveyor 3 continuously transports empty packaging boxes 4 to the loading station below silo 1. The detergent powder in silo 1 enters trough 12 of roller 13 through discharge housing 2. The motor drives shaft 10, which rotates roller 13, and trough 12 scoops out a fixed amount of detergent powder. When trough 12 begins to rotate counterclockwise from its vertically upward position (in box-loading mode, one-way bearing 11 is locked, and connecting frame 9 and shaft 10 are rigidly linked), abutment plate 8 rotates synchronously with roller 13. When trough 12 rotates 90° (with the notch facing horizontally to the side), the end of abutment plate 8 first contacts the top of sealing plate 6, breaking down the tangential force of the circular motion into a vertical component. This pushes sealing plate 6 downward along the sidewall of discharge housing 2, overcoming the resistance of first elastic member 7. Before trough 12 rotates to 180°, sealing plate 6 has already abutted against the opening of packaging box 4, forming a sealed space. At this time, the notch of the material storage trough 12 is aligned with the box opening, and the washing powder falls into the box under the action of gravity. After the loading is completed, the rotating shaft 10 continues to rotate, and the vacuum cleaner 5 is activated due to the push-type switch 14 on the side wall of the material discharging shell 2 squeezed by the abutment plate 8, forming a local negative pressure in the box, and the dust generated during the falling process is extracted to the filtration system in real time. When the abutment plate 8 passes the push-type switch 14, the abutment plate 8 rotates synchronously to a position away from the sealing plate 6. The sealing plate 6 returns upward under the restoring force of the first elastic member 7, releasing the loaded packaging box 4, and the conveyor 3 sends it away and transports the next empty box. If the mode is switched to bagging, the motor drives the rotating shaft 10 to rotate clockwise, the one-way bearing 11 is in a free state, the abutment plate 8 is stationary, the sealing plate 6 no longer presses down, and the washing powder falls directly into the flexible packaging bag.

[0074] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0075] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A washing powder packaging device, characterized in that: include: A conveyor (3) for conveying packaging boxes (4); A silo (1) is supported above the conveyor (3) by a bracket, and a discharge shell (2) is provided at the bottom of the silo (1) and is in communication with the silo. A roller (13) is rotatably connected to the discharge shell (2) via a rotating shaft (10). The rotating shaft (10) is driven by a motor, and a material storage trough (12) is provided on the side wall of the roller (13). A sealing plate (6) is slidably sleeved on the side wall of the discharge shell (2) and elastically connected to the side wall of the discharge shell (2) via a first elastic member (7); a transmission device for drivingly connecting the rotating shaft (10) and the sealing plate (6); when the rotating shaft (10) drives the material storage trough (12) on the rotating roller (13) to rotate to a downward position, the rotating shaft (10) drives the sealing plate (6) to move downward through the transmission device to abut against the packaging box (4) located below the sealing plate (6); The transmission device includes an abutment plate (8), the abutment plate (8) is connected to the rotating shaft (10) through a connecting frame (9), the abutment plate (8) is located outside the discharge shell (2) and above the sealing plate (6), the distance between the abutment plate (8) and the rotating shaft (10) is greater than the vertical distance between the sealing plate (6) and the rotating shaft (10), the distance between the abutment plate (8) and the rotating shaft (10) is greater than the distance between the notch of the storage trough (12) and the rotating shaft (10), and the abutment plate (8) is located on one side of the storage trough (12) in the length direction; The abutment plate (8) is arranged along the circumference of the rotating roller (13), so that the abutment plate (8) is an arc-shaped structure and has a concentric center with the rotating roller (13); The two ends of the abutting plate (8) are respectively located on both sides of the width direction of the material storage trough (12).

2. A washing powder packaging device according to claim 1, characterized in that: The connecting frame (9) is connected to the rotating shaft (10) via a one-way bearing (11).

3. A washing powder packaging device according to claim 1, characterized in that: A dust collector (5) is provided on one side of the conveyor (3), and an air inlet end of the dust collector (5) is connected to a pipe (20); a dust suction port (21) is provided through one side of the sealing plate (6) and is connected to the interior thereof, and the dust suction port (21) is connected to the pipe (20).

4. A washing powder packaging device according to claim 3, characterized in that: A push-type switch (14) cooperating with the abutment plate (8) is provided on the side wall of the discharge shell (2). When the storage trough (12) rotates from a vertically downward position to a vertically upward position, the abutment plate (8) can press the push-type switch (14), so that the vacuum cleaner (5) electrically connected to the push-type switch (14) is started.

5. A washing powder packaging device according to claim 4, characterized in that: The push-type switch (14) includes a housing (15), a button (16) and a pressure sensor (18). The button (16) is slidably connected in the housing (15) and elastically connected to the housing (15) through a second elastic member. One end of the button (16) extends outside the housing (15), and the end of the button (16) is provided with a guide surface (17) that contacts and cooperates with the abutment plate (8). The guide surface (17) is inclined. The pressure sensor (18) is provided in the housing (15) and is located on one side of the button (16).

6. The washing powder packaging device according to claim 1, characterized in that: The bottom of the sealing plate (6) is provided with a rubber layer.

7. A method for packaging washing powder, implemented by the washing powder packaging device according to claim 1, characterized in that: include: The motor drives the rotating shaft (10) to drive the roller (13) to rotate. The storage trough (12) on the roller (13) scoops the washing powder in the hopper (1) during the rotation process. When the storage trough (12) rotates to the downward position, the transmission device causes the sealing plate (6) to move downward to abut against the opening of the packaging box (4). At this time, the washing powder in the storage trough (12) falls into the box, realizing quantitative loading. After the loading is completed, the roller (13) continues to rotate, the storage trough (12) leaves the unloading position, the sealing plate (6) is reset under the action of the elastic member, and the conveyor (3) sends the filled packaging box (4) away and at the same time sends the next empty box to the loading position, and the cycle continues.

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