Washing powder packaging device and method

Abstract

The invention provides a washing powder packaging device and method, belongs to the technical field of packaging, and aims at solving the problem that in the prior art, in the packaging production of box-packed washing powder, flying dust is difficult to treat. Comprising a conveyor, a stock bin, a sealing plate and a transmission device, the stock bin is supported above the conveyor through a support, a discharging shell communicated with the stock bin is arranged at the bottom of the stock bin, a rotating roller is rotationally connected into the discharging shell through a rotating shaft, the rotating shaft is driven by a motor, and a storage groove is formed in the side wall of the rotating roller; the sealing plate is slidably arranged on the side wall of the discharging shell in a sleeving mode and elastically connected with the side wall of the sealing plate through a first elastic piece. The transmission device connects the rotating shaft with the sealing plate in a transmission mode. According to the invention, through the linkage design of the transmission device, the sealing plate and the rotating shaft, a dynamic closed loop of'discharging, namely sealing 'is formed, dust overflow generated during falling of washing powder is effectively inhibited, and the workshop environment is improved.

Description

Technical Field

[0001] The present 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 washing powder, the loading process is one of the core processes. At present, the commonly used loading process in the industry is as follows: The empty box is conveyed by a conveyor to the lower part of the storage bin, and the washing powder in the storage bin freely falls by gravity to fill the empty box. However, there are serious dust pollution problems in this process: 1. When the washing powder particles fall from the outlet of the storage bin (usually the height from the outlet to the box opening is 100 - 300 mm), the relative movement between the particles and the air causes air flow disturbance. At the same time, the collision and friction between the particles cause some washing powder particles to break and form dust. These dusts are lifted in large quantities at the moment of filling. Taking the dust with a particle size ≤ 10 μm as an example, its diffusion radius in the workshop can reach 2 - 3 m, resulting in the deterioration of the air quality in the workshop.

[0003] 2. The dust not only adheres to the surface of the equipment (such as conveyors, box sealing machines, etc., increasing the cleaning frequency of the equipment and the maintenance cost by 30%), but also settles on the workshop floor and walls, forming dust accumulations that are difficult to clean, increasing the cleaning burden of the workshop; more seriously, the operators are exposed to the dust environment for a long time, and the occupational health risk increases significantly. Summary of the Invention

[0004] In view of this, the present invention provides a washing powder packaging device and method to solve the problem of difficult handling of dust in the packaging production of boxed washing powder in the prior art.

[0005] The technical solution adopted by the present invention is as follows: A washing powder packaging device includes: A conveyor for conveying the packaging box; A storage bin supported above the conveyor by a bracket, and a discharge shell communicated with the bottom of the storage bin. A rotating roller is rotatably connected in the discharge shell through a rotating shaft, the rotating shaft is driven by a motor, and a storage groove is provided on the side wall of the rotating roller; A sealing plate is slidably sleeved on the side wall of the discharge shell and is elastically connected to the side wall of the sealing plate through a first elastic member; A transmission device transmits the rotating shaft and the sealing plate. When the storage groove on the rotating roller driven by the rotating shaft rotates to the downward position, the rotating shaft drives the sealing plate to move downward through the transmission device to press against the packaging box located below the sealing plate.

[0006] In this technical solution, it should be noted that the conveyor is used to convey the packaging boxes, and the empty boxes are continuously transported 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 rotating 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 collection and discharge are achieved through the rotation of the roller to ensure that the amount of washing powder falling into the packaging box is consistent each time. The sealing plate is slidably sleeved on the side wall of the discharge shell and elastically connected to the side wall of the discharge shell through the 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 spilling out. The elastic member allows the sealing plate to be reset when not loading. 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 the downward position, the rotating shaft drives the sealing plate to move downward through the transmission device, so that the sealing plate is tightly against the packaging box below to form a seal to prevent dust from being raised. The washing powder in the storage trough falls into the packaging box through the discharge shell. After the storage trough turns away from the unloading position, the sealing plate moves upward under the action of the elastic member to release the loaded packaging box, completing a loading process. The overall working principle is: the motor drives the rotating shaft to drive the roller to rotate, and the storage trough on the roller scoops the washing powder in the silo during the rotation process. When the storage trough rotates to the downward position, the transmission device moves the sealing plate downward to press against the packaging box mouth. At this time, the washing powder in the storage trough falls into the box to achieve quantitative loading. After loading is completed, the roller continues to rotate, the storage trough leaves the unloading position, and the sealing plate is reset under the action of the elastic member. The conveyor sends the full packaging box away and transports the next empty box to the loading position, and the cycle continues. The beneficial effect of the device is that the synchronous action of unloading and sealing is achieved during the loading process through the linkage design of the mechanical structure. The transmission device mechanically links the movement of the rotating shaft and the sealing plate, and achieves synchronous action with a purely mechanical structure, forming a dynamic closed loop of "unloading and sealing". It effectively suppresses the dust spillage generated when the washing powder falls, and improves the workshop environment.

[0007] 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 material storage trough and the rotating shaft, and the abutment plate is located on one side in the length direction of the material storage trough.

[0008] In this technical solution, it should be noted that the abutting plate in the transmission device is rigidly connected to the rotating shaft through a connecting frame and rotates synchronously with the rotating shaft. Its position 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 abutting plate and the rotating shaft is greater than the vertical distance between the sealing plate and the rotating shaft, and is also greater than the distance between the notch of the storage tank and the rotating shaft. This makes the movement trajectory radius of the abutting plate larger during rotation, enabling it to squeeze the sealing plate downward when the storage tank rotates to the downward position. The abutting plate is arranged on one side of the storage tank in the length direction. When the storage tank rotates to the discharging angle, the abutting plate just rotates to contact the sealing plate, and it pushes the sealing plate to slide downward along the side wall of the discharge housing, compressing the first elastic member (such as a spring) and making the sealing plate tightly abut against the lower packaging box opening to form a sealed state. At this time, the notch of the storage tank is aligned with the packaging box opening, and the washing powder falls into the box under the action of gravity. Since the sealing plate has already abutted against the box opening in advance, the dust generated during the falling process is restricted within the sealed space and cannot overflow. When the rotating shaft continues to rotate and the storage tank leaves the discharging position, the abutting plate synchronously rotates to a position away from the sealing plate, and the sealing plate resets upward under the restoring force of the first elastic member, releasing the packaging box to complete a loading-sealing linkage process. This structural design utilizes the geometric dimension difference and spatial layout of mechanical components to convert the circular motion of the rotating shaft into the linear reciprocating motion of the sealing plate, and realizes the function of sealing the storage tank only through the position setting of the abutting plate and the rigid conduction of the connecting frame.

[0009] Preferably, the abutting plate is arranged along the circumferential direction of the roller, so that the abutting plate is in an arc structure and has the same center of the circle as the roller.

[0010] In this technical solution, it should be noted that the abutting plate is arranged in an arc structure along the circumferential direction of the rotating roller and is concentric with the rotating roller, forming a concentric arc guiding structure around the rotating roller. During the rotation of the rotating roller, a progressive extrusion relationship is formed between the arc-shaped edge of the abutting plate and the contact area at the top of the sealing plate: when the material storage tank rotates with the rotating roller to the discharging position, the arc-shaped front end of the abutting plate first contacts the top of the sealing plate. As the rotating roller continues to rotate, the tangential component of the arc-shaped structure pushes the sealing plate to slide downward along the side wall of the discharging shell, compressing the first elastic member and causing the sealing plate to abut against the mouth of the packaging box; since the abutting plate is concentric with the rotating roller, the contact trajectory of its arc-shaped edge with the sealing plate during rotation is an arc. Within this arc segment, the abutting plate and the sealing plate remain in continuous contact, ensuring that a stable sealing interface is always formed throughout the entire process of material discharging from the material storage tank (i.e., before the abutting plate disengages from the sealing plate). The core advantage of this arc-shaped design lies in the continuity and stability of the contact force: different from the instantaneous impact transmission of a linear abutting plate, the arc-shaped structure keeps the sealing plate in a tightened state after being abutted by the abutting plate, ensuring that dust is completely confined within the sealed space during the falling process of the washing powder. In addition, the concentric layout makes the contact points between the abutting plate and the sealing plate always distributed along the radial direction of the rotating roller, and the force conduction direction is perpendicular to the movement trajectory of the sealing plate, reducing the lateral component force. This structure converts the circular motion of the rotating roller into the stable linear motion of the sealing plate through the collaborative design of the geometric shape and the motion trajectory, and utilizes the constant force conduction characteristic of the concentric arc to achieve the effect of "one-time extrusion and full-process sealing", ensuring that the sealing plate continuously abuts against the packaging box during the loading process, fundamentally suppressing dust spillage.

[0011] Preferably, both ends of the abutting plate are respectively located on both sides of the width direction of the material storage tank.

[0012] In this technical solution, it should be noted that both ends of the abutting plate are respectively located on both sides of the width direction of the storage tank. The core design is to trigger the sealing action in advance through the advanced configuration of the spatial position. Specifically, the storage tank is radially distributed on the side wall of the rotating roller (for example, when it is vertically upward, the tank opening faces upward). As an arc-shaped structure, both ends of the abutting plate extend to both sides of the storage tank, and it is arranged 10°-30° ahead of the center line of the storage tank in the circumferential position. When the rotating roller drives the storage tank to rotate from the vertically upward state, the abutting plate rotates synchronously with the rotating roller. Since both ends of it are located on both sides of the storage tank and the circumferential position is ahead, when the storage tank only rotates 90° (that is, the tank opening changes from upward to horizontal sideward), the abutting plate has already rotated to the upper part of the sealing plate and contacts it first, pushing the sealing plate to move downward. Before the storage tank rotates to the 180° position, the sealing plate has already abutted against the box opening in advance, forming a sealed space. The core advantage of this design lies in the advanced control of the action timing; and in this solution, through the extended layout on both sides of the abutting plate, the pressing-down action of the sealing plate is advanced to start when the storage tank rotates 90° or before 90°, ensuring that when the storage tank continues to rotate to the 180° discharging position, the sealing plate has already tightly abutted against the box opening, realizing the ideal timing of "sealing first and then discharging". This design realizes the "advanced response" of the mechanical linkage through the innovative combination of geometric layout and motion phase, and not only solves the problem of unconstrained overflow of dust in the initial stage of discharging.

[0013] Preferably, the connecting frame is connected to the rotating shaft through a one-way bearing.

[0014] In this technical solution, it should be noted that the connecting frame is connected to the rotating shaft through a one-way bearing. This design utilizes the directional transmission characteristics of the one-way bearing to achieve the adaptive switching of the device for different packaging forms. The one-way bearing (such as a wedge-type one-way clutch) locks in the counterclockwise direction (defined as the boxed 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 abutting plate through the one-way bearing, driving them to rotate synchronously. At this time, the abutting plate drives the sealing plate to move downward according to the timing control logic described above to achieve the sealed blanking of the packaging box. In the clockwise direction (bagged mode), the one-way bearing is in a free state, the connecting frame is separated from the rotating shaft, the abutting plate no longer rotates with the rotating shaft, remains stationary, and the sealing plate no longer presses down, thus avoiding interference with the bagged packaging process. The core advantage of this design is that the same device is compatible with two packaging modes: 1. Boxed mode (counterclockwise rotation): The one-way bearing locks, and the abutting plate rotates synchronously with the roller. When the storage tank rotates to the blanking position, the abutting plate pushes the sealing plate downward through the arc edge or extension structure to form a sealed space, ensuring that the dust does not overflow during the loading process of boxed washing powder. 2. Bagged mode (clockwise rotation): The one-way bearing separates, the abutting plate is stationary, and the sealing plate no longer presses down, facilitating the staff to directly drop the washing powder into the packaging bag. It avoids the extrusion deformation of the flexible bag mouth by the rigid sealing plate. This technical solution realizes mode switching through a single mechanical component, enabling the device to be flexibly adapted between the boxed and bagged packaging forms, maintaining both the dust suppression advantage in the boxed mode and meeting the open blanking requirement in the bagged mode, providing a minimalist and reliable solution for the multifunctionalization of washing powder packaging equipment.

[0015] Preferably, a dust collector is provided on one side of the conveyor, and a pipeline is connected to the air inlet end of the dust collector; a dust suction port communicating with the inside thereof is provided through one side of the sealing plate, and the dust suction port is connected to the pipeline.

[0016] In this technical solution, it should be noted that the dust collector provided on one side of the conveyor is connected to the dust suction port inside the sealing plate through a pipeline, forming a closed-loop dust treatment of "sealed space - dust suction channel - negative pressure source". Specifically, the dust collector (such as a centrifugal fan) is connected to the dust suction port on the side wall of the sealing plate through the pipeline at the air inlet end. The dust suction port is directly communicated with the space inside the box when the sealing plate abuts against the packaging box, forming a close-range dust capture area. The working principle is as follows: When the sealing plate moves downward with the transmission device and abuts against the box mouth of the packaging box, the dust suction port just aligns with the upper space inside the box, and the dust collector is started synchronously to form a local negative pressure inside the box. The dust generated when the washing powder in the storage tank falls is directly sucked into the dust suction port under the action of the negative pressure and is transported to the filtering system (such as a bag filter) of the dust collector through the pipeline, realizing the real-time collection and treatment of the dust.

[0017] Preferably, a push-button switch cooperating with the abutting plate is provided on the side wall of the discharge housing. During the process of the material storage tank rotating from the vertically downward state to the vertically upward state, the abutting plate can squeeze the push-button switch, so that the vacuum cleaner electrically connected to the push-button switch is started.

[0018] In this technical solution, it should be noted that the provided push-button switch and the abutting plate form a linkage trigger structure. The core lies in controlling the start and stop of the vacuum cleaner through the circumferential movement timing of the abutting plate to achieve the precision of dust treatment. The push-button switch is installed outside the discharge housing, and its position corresponds to the top dead center area of the rotation trajectory of the abutting plate (that is, the necessary path when the abutting plate rotates 180° with the rotating shaft during the process of the material storage tank rotating from the vertically downward to the vertically upward). When the material storage tank finishes discharging and rotates upward, the abutting plate rotates synchronously with the rotating shaft. When the edge of the abutting plate rotates to a certain interval between 270° and 360°, it squeezes the push-button switch (at this time, the sealing plate and the abutting plate have not separated), so that the switch contacts are closed, thereby connecting the vacuum cleaner circuit (such as a 24V DC motor), and the vacuum cleaner starts and extracts the residual dust in the dust suction port and the surrounding area of the sealing plate through the pipeline.

[0019] Preferably, the push-button switch includes a housing, a button and a pressure sensor. The button is slidably connected in the housing and elastically connected to the housing through a second elastic member. One end of the button extends outside the housing, and a guiding surface for contacting and cooperating with the abutting plate is provided at the end of the button. The guiding surface is inclined, and the pressure sensor is arranged in the housing and is located on one side of the button.

[0020] In this technical solution, it should be noted that the push-button switch realizes the precise response to the rotational movement of the abutting plate through the integrated design of the mechanical structure and the sensor. Its housing serves as the supporting main body, and the button is slidably connected inside. The button is elastically connected to the housing through a second elastic member (such as a spring), so that the button maintains an extended state when not subjected to external force. The guiding surface at the end of the button forms a line contact with the arc edge of the abutting plate. When the abutting plate rotates with the roller to the trigger position, the guiding surface is squeezed by the abutting plate, decomposing the tangential force of the circumferential movement into a component force perpendicular to the axis of the button, and pushing the button to slide into the housing against the spring resistance. The pressure sensor inside the housing is located on one side of the sliding path of the button. When the button 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, so that the vacuum cleaner starts. The second elastic member provides a reset force after the abutting plate leaves, so that the button returns to the initial position, the signal of the pressure sensor disappears, and the circuit is disconnected. This design realizes a progressive triggering process through the optimization of the inclination angle of the guiding surface, avoiding signal fluctuations caused by instantaneous impacts; this structure converts the displacement and force changes of the mechanical movement into electrical signal output, and through the coordinated action of the guiding surface - elastic member - sensor, provides a triggering mechanism for the intelligent control of the vacuum cleaner.

[0021] Preferably, a rubber layer is provided at the bottom of the abutting plate.

[0022] In this technical solution, it should be noted that the rubber layer is provided to increase the sealing performance.

[0023] A method for packaging washing powder includes: a motor drives a rotating shaft to drive a rotating roller to rotate. The material storage groove on the rotating roller scoops up the washing powder in the material bin during rotation. When the material storage groove rotates to the downward position, a transmission device moves a sealing plate downward to abut against the mouth of the packaging box. At this time, the washing powder in the material storage groove falls into the box, realizing quantitative feeding. After the feeding is completed, the rotating roller continues to rotate, the material storage groove leaves the feeding position, and the sealing plate resets under the action of an elastic member. A conveyor sends away the filled packaging box and at the same time conveys the next empty box to the feeding position, and so on in a cycle.

[0024] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: 1. In the present invention, through the linkage design of the transmission device, the sealing plate and the rotating shaft, the synchronous actions of feeding and sealing during the feeding process are realized. The transmission device mechanically and rigidly links the movements of the rotating shaft and the sealing plate to achieve synchronous actions with a pure mechanical structure, forming a dynamic closed loop of "feeding and sealing simultaneously". It effectively inhibits the dust overflow generated when the washing powder falls and improves the workshop environment.

[0025] 2. In the present invention, by utilizing the geometric dimension difference and spatial layout of mechanical components, the circular motion of the rotating shaft is converted into the linear reciprocating motion of the sealing plate, and the sealing function of the material storage groove is realized only through the position setting of the abutting plate and the rigid conduction of the connecting frame.

[0026] 3. In the present invention, the abutting plate is arranged along the circumferential direction of the rotating roller. Through the coordinated design of the geometric shape and the motion trajectory, the circular motion of the rotating roller is converted into the stable linear motion of the sealing plate, and the effect of "one-time extrusion and full-course sealing" is realized by utilizing the constant force conduction characteristic of concentric arcs, ensuring that the sealing plate continuously abuts against the packaging box during the feeding process and fundamentally inhibiting dust overflow.

[0027] 4. In the present invention, through the extended layout on both sides of the abutting plate, the pressing-down action of the sealing plate is started when the material storage groove rotates 90° or before 90°, ensuring that when the material storage groove continues to rotate to the 180° feeding position, the sealing plate has completely abutted against the box mouth, realizing the ideal timing sequence of "sealing first and then feeding".

[0028] 5. In the present invention, the setting of the one-way bearing enables the device to be flexibly adapted between two packaging forms of boxed and bagged. It not only maintains the dust suppression advantage in the boxed mode but also meets the open feeding requirement in the bagged mode, providing a simple and reliable solution for the multi-functionalization of washing powder packaging equipment.

[0029] 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

[0030] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the discharging shell and the packaging box of the present invention; Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the discharge shell after it is cut open; Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure after the transfer roller is rotated 90° counterclockwise; Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure after the transfer roller rotates counterclockwise less than 90°; Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure after the transfer roller rotates to contact the push switch; Figure 7 It is a schematic cross-sectional three-dimensional structural diagram of the push-type switch of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the sealing plate and the vacuum cleaner of the present invention.

[0031] 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- material storage trough, 13- rotating roller, 14- push switch, 15- housing, 16- button, 17- guide surface, 18- pressure sensor, 20- pipe, 21- vacuum port. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0034] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0035] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0037] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0038] Embodiment 1

[0039] As Figures 1-8 shown, a washing powder packaging device is disclosed in an embodiment of the present invention, including: a conveyor 3 for conveying a packaging box 4; a storage bin 1 supported above the conveyor 3 by a bracket, and a discharge housing 2 communicating with the bottom of the storage bin 1. A roller 13 is rotatably connected in the discharge housing 2 through a rotating shaft 10. The rotating shaft 10 is driven by a motor, and a storage groove 12 is provided on the side wall of the roller 13; a sealing plate 6 slidably sleeved on the side wall of the discharge housing 2 and elastically connected to the side wall of the sealing plate 6 through a first elastic member 7; a transmission device for drivingly connecting the rotating shaft 10 and the sealing plate 6. When the storage groove 12 on the roller 13 driven by the rotating shaft 10 rotates to a downward position, the rotating shaft 10 drives the sealing plate 6 to move downward through the transmission device to press against the packaging box 4 located below the sealing plate 6.

[0040] It should be noted that the conveyor 3 is used to convey the packaging box 4, and continuously transport the empty boxes to the loading station below the silo 1 to ensure that the packaging box 4 is 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 the washing powder. The quantitative material collection and discharge are achieved through the rotation of the roller 13 to ensure that the amount of washing powder falling into the packaging box 4 is consistent each time. The sealing plate 6 is slidably sleeved 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 spilling. 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 to release 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 moves the sealing plate 6 downward to press against the mouth 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 the 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 away the filled packaging box 4 and at the same time conveys the next empty box to the loading position, and so on. The beneficial effect of the device is that the synchronous action of unloading and sealing during the loading process is realized through the linkage design of the mechanical structure. The transmission device mechanically links the movement of the rotating shaft 10 and the sealing plate 6, and realizes the synchronous action with a pure mechanical structure, forming a dynamic closed loop of "unloading and sealing". It effectively suppresses the dust spillage generated when the washing powder falls, and improves the workshop environment.

[0041] In this embodiment, a rubber layer is provided at the bottom of the abutting plate 8. It should be noted that the rubber layer is provided to increase the sealing performance.

[0042] like Figure 3As shown, in this embodiment, the transmission device includes an abutting plate 8, which is connected to a rotating shaft 10 through a connecting frame 9. The abutting plate 8 is located outside the discharge housing 2 and above the sealing plate 6. The distance between the abutting 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 abutting plate 8 and the rotating shaft 10 is greater than the distance between the notch of the storage tank 12 and the rotating shaft 10, and the abutting plate 8 is located on one side in the length direction of the storage tank 12. It should be noted that the abutting 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 housing 2 and directly above the sealing plate 6. Mechanical transmission is achieved through a specific spatial layout design: the radial distance between the abutting plate 8 and the rotating shaft 10 is greater than the vertical distance between the sealing plate 6 and the rotating shaft 10, and at the same time, it is also greater than the distance between the notch of the storage tank 12 and the rotating shaft 10, so that the movement trajectory radius of the abutting plate 8 during rotation is larger. When the storage tank 12 rotates to the downward position, it can squeeze the sealing plate 6 to move downward. The abutting plate 8 is arranged on one side in the length direction of the storage tank 12. When the storage tank 12 rotates to the discharging angle, the abutting plate 8 just rotates to contact the sealing plate 6, and it pushes the sealing plate 6 to slide downward along the side wall of the discharge housing 2, compressing the first elastic member 7 (such as a spring) and making the sealing plate 6 tightly abut against the mouth of the lower packaging box 4 to form a sealed state. At this time, the notch of the storage tank 12 is aligned with the mouth of the packaging box 4, and the washing powder falls into the box under the action of gravity. Since the sealing plate 6 has already abutted against the box mouth in advance, the dust generated during the falling process is restricted in the sealed space and cannot overflow. When the rotating shaft 10 continues to rotate and the storage tank 12 leaves the discharging position, the abutting plate 8 synchronously rotates to a position away from the sealing plate 6, and the sealing plate 6 returns upward under the restoring force of the first elastic member 7, releasing the packaging box 4 to complete a loading-sealing linkage process. This structural design utilizes the geometric dimension difference and spatial layout of mechanical components to convert the circular motion of the rotating shaft 10 into the linear reciprocating motion of the sealing plate 6, and only through the position setting of the abutting plate 8 and the rigid conduction of the connecting frame 9, the sealing function of the storage tank 12 is realized.

[0043] As Figures 3-6As shown, in this embodiment, the abutting plate 8 is arranged along the circumferential direction of the roller 13, such that the abutting plate 8 has an arc-shaped structure and is concentric with the roller 13. It should be noted that the abutting plate 8 being arranged along the circumferential direction of the roller 13 to have an arc-shaped structure and being concentric with the roller 13 forms a concentric arc-shaped guiding structure surrounding the roller 13. During the rotation of the roller 13, a progressive extrusion relationship is formed between the arc-shaped edge of the abutting plate 8 and the contact area at the top of the sealing plate 6: when the material storage tank 12 rotates with the roller 13 to the discharging position, the arc-shaped front end of the abutting plate 8 first contacts the top of the sealing plate 6. As the roller 13 continues to rotate, the tangential component of the arc-shaped structure pushes the sealing plate 6 to slide downward along the side wall of the discharging shell 2, compressing the first elastic member 7 and causing the sealing plate 6 to abut against the mouth of the packaging box 4; since the abutting plate 8 is concentric with the roller 13, the contact track of its arc-shaped edge with the sealing plate 6 during rotation is an arc. Within this arc segment, the abutting plate 8 and the sealing plate 6 remain in continuous contact, ensuring that a stable sealing interface is always formed by the sealing plate 6 throughout the entire process of discharging from the material storage tank 12 (i.e., before the abutting plate 8 disengages from the sealing plate 6). The core advantage of this arc-shaped design lies in the continuity and stability of the contact force: different from the instantaneous impact transmission of a linear abutting plate 8, the arc-shaped structure keeps the sealing plate 6 in a continuously tightened state after being tightened by the abutting plate 8, ensuring that dust is completely confined within the sealed space during the falling process of the washing powder. In addition, the concentric layout makes the contact points between the abutting plate 8 and the sealing plate 6 always distributed along the radial direction of the roller 13, and the force conduction direction is perpendicular to the movement track of the sealing plate 6, reducing the lateral component force. This structure converts the circular motion of the roller 13 into the stable linear motion of the sealing plate 6 through the collaborative design of the geometric shape and the motion track, and utilizes the constant force conduction characteristic of the concentric arc to achieve the effect of "one-time extrusion and full-process sealing", ensuring that the sealing plate 6 continuously abuts against the packaging box 4 during the loading process, and fundamentally suppressing dust spillage.

[0044] As Figures 3-6As shown, in this embodiment, both ends of the abutting plate 8 are respectively located on both sides in the width direction of the material storage tank 12. It should be noted that the core design of both ends of the abutting plate 8 being respectively located on both sides in the width direction of the material storage tank 12 is to trigger the sealing action in advance through the advanced configuration of the spatial position. Specifically, the material storage tank 12 is radially distributed on the side wall of the rotating roller 13 (for example, when it is vertically upward, the tank opening faces upward). As an arc-shaped structure, both ends of the abutting plate 8 extend to both sides of the material storage tank 12, and are arranged 10° - 30° ahead of the center line of the material storage tank 12 in the circumferential position. When the rotating roller 13 drives the material storage tank 12 to start rotating from the vertically upward state, the abutting plate 8 rotates synchronously with the rotating roller 13. Since both ends of it are located on both sides of the material storage tank 12 and the circumferential position is ahead, when the material storage tank 12 rotates only 90° (that is, the tank opening changes from facing upward to horizontally facing the side), the abutting plate 8 has already rotated to above the sealing plate 6 and contacted it first, pushing the sealing plate 6 to move downward. Before the material storage tank 12 rotates to the 180° position, the sealing plate 6 has already abutted against the opening of the packaging box 4 in advance, forming a sealed space. The core advantage of this design lies in the advanced control of the action timing; and in this solution, through the layout of the two-side extension of the abutting plate 8, the downward pressing action of the sealing plate 6 is advanced to start when the material storage tank 12 rotates 90° or before 90°, ensuring that when the material storage tank 12 continues to rotate to the 180° material discharging position, the sealing plate 6 has completely tightened against the box opening, realizing the ideal timing of "sealing first and then discharging". This design realizes the "advanced response" of mechanical linkage through the innovative combination of geometric layout and motion phase, and not only solves the problem of unconstrained overflow of dust in the initial stage of material discharging.

[0045] Embodiment 2

[0046] As Figure 2As shown, this embodiment is substantially the same as the above embodiment, except that the connecting frame 9 is connected to the rotating shaft 10 through a one-way bearing 11. It should be noted that the connecting frame 9 is connected to the rotating shaft 10 through a one-way bearing 11, and this design utilizes the directional transmission characteristics of the one-way bearing 11 to achieve the adaptive switching of the device to different packaging forms. The one-way bearing 11 (such as a wedge-type one-way clutch) locks in the counterclockwise direction (defined as the boxed mode), making the connecting frame 9 and the rotating shaft 10 form a rigid connection. The torque of the rotating shaft 10 is transmitted to the connecting frame 9 and the abutting plate 8 through the one-way bearing 11, driving them to rotate synchronously. At this time, the abutting plate 8 drives the sealing plate 6 to move downward according to the timing control logic described above to achieve the sealed blanking of the packaging box 4. In the clockwise direction (bagged mode), the one-way bearing 11 is in a free state, the connecting frame 9 is separated from the rotating shaft 10, the abutting plate 8 no longer rotates with the rotating shaft 10 and remains stationary, and the sealing plate 6 no longer presses down, thus avoiding interference with the bagged packaging process. The core advantage of this design is that the same device is compatible with two packaging modes: 1. Boxed mode (counterclockwise rotation): The one-way bearing 11 locks, and the abutting plate 8 rotates synchronously with the rotating roller 13. When the storage tank 12 rotates to the blanking position, the abutting plate 8 pushes the sealing plate 6 downward through the arc-shaped edge or extension structure to form a sealed space, ensuring that the dust does not overflow during the loading process of the boxed washing powder. 2. Bagged mode (clockwise rotation): The one-way bearing 11 separates, the abutting plate 8 is stationary, and the sealing plate 6 no longer presses down, facilitating the staff to directly drop the washing powder into the packaging bag. It avoids the extrusion deformation of the flexible bag mouth by the rigid sealing plate 6. This technical solution realizes mode switching through a single mechanical component, enabling the device to be flexibly adapted between the boxed and bagged packaging forms, maintaining both the dust suppression advantage in the boxed mode and meeting the open blanking requirement in the bagged mode, providing a minimalist and reliable solution for the multi-functionalization of washing powder packaging equipment.

[0047] Embodiment 3

[0048] As Figure 6 shown and Figure 8As shown, this embodiment is generally the same as the above embodiment, except that a dust collector 5 is provided on one side of the conveyor 3, and the air inlet end of the dust collector 5 is connected to a pipeline 20; a dust suction port 21 communicating with its interior is provided through one side of the sealing plate 6, and the dust suction port 21 is connected to the pipeline 20. It should be noted that the dust collector 5 provided on one side of the conveyor 3 is connected to the dust suction port 21 inside the sealing plate 6 through the pipeline 20 to form a dust treatment closed loop of "sealed space - dust suction channel - negative pressure source". Specifically, the dust collector 5 (such as a centrifugal fan) is connected to the dust suction port 21 on the side wall of the sealing plate 6 through the air inlet end pipeline 20, and the dust suction port 21 is directly communicated with the space inside the box when the sealing plate 6 abuts against the packaging box 4, forming a close-range dust capture area. The working principle is as follows: when the sealing plate 6 moves down with the transmission device and abuts against the mouth of the packaging box 4, the dust suction port 21 just aligns with the upper space inside the box, and the dust collector 5 is started synchronously, creating a local 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 under the action of the negative pressure, and is transported to the filtration system (such as a bag filter) of the dust collector 5 through the pipeline 20, realizing the real-time collection and treatment of dust.

[0049] As Figure 7 shown, in this embodiment, a push-button switch 14 cooperating with the abutting plate 8 is provided on the side wall of the discharge housing 2. When the storage tank 12 rotates from the vertically downward state to the vertically upward state, the abutting plate 8 can squeeze the push-button switch 14, causing the dust collector 5 electrically connected to the push-button switch 14 to start. It should be noted that the provided push-button switch 14 and the abutting plate 8 form a linkage trigger structure, and its core lies in controlling the start and stop of the dust collector 5 through the circumferential movement timing of the abutting plate 8 to achieve precise dust treatment. The push-button switch 14 is installed outside the discharge housing 2, corresponding to the upper dead point area of the rotation trajectory of the abutting plate 8 (that is, the necessary path when the abutting plate 8 rotates 180° with the rotating shaft 10 during the process of the storage tank 12 rotating from vertically downward to vertically upward). When the storage tank 12 finishes discharging and rotates upward, the abutting plate 8 rotates synchronously with the rotating shaft 10, and its edge squeezes the push-button switch 14 in a certain interval of 270° - 360° during rotation (at this time, the sealing plate 6 and the abutting plate 8 have not separated yet), closing the switch contact, thereby connecting the circuit of the dust collector 5 (such as a 24V DC motor), and the dust collector 5 starts and extracts the residual dust in the dust suction port 21 of the sealing plate 6 and its surrounding area through the pipeline 20.

[0050] As Figure 7As shown, in this embodiment, the push-button 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 is elastically connected to the housing 15 through a second elastic member. One end of the button 16 extends outside the housing 15, and a guiding surface 17 that is in contact and cooperation with the abutting plate 8 is provided at the end of the button 16. The guiding surface 17 is inclined. The pressure sensor 18 is provided within the housing 15 and is located on one side of the button 16. It should be noted that through the integrated design of the mechanical structure and the sensor of the push-button switch 14, precise response to the rotational movement of the abutting plate 8 is achieved. Its housing 15 serves as the supporting body, with the button 16 slidably connected inside. The button 16 is elastically connected to the housing 15 through a second elastic member (such as a spring), so that the button 16 remains in the extended state when no external force is applied. The guiding surface 17 at the end of the button 16 forms a line contact with the arc-shaped edge of the abutting plate 8. When the abutting plate 8 rotates with the roller 13 to the trigger position, the guiding surface 17 is squeezed by the abutting plate 8, decomposing the tangential force of the circular motion into a component force perpendicular to the axis of the button 16, pushing the button 16 to slide into the housing 15 against the spring resistance. The pressure sensor 18 inside the housing 15 is located on one side of the sliding path of the button 16. When the button 16 slides to the set position, its side contacts the pressure sensor 18 and applies pressure. The pressure sensor 18 converts the mechanical force into an electrical signal, causing the vacuum cleaner 5 to start. The second elastic member provides a restoring force after the abutting plate 8 leaves, causing the button 16 to return to its initial position, the signal of the pressure sensor 18 disappears, and the circuit is disconnected. Through the optimization of the inclination angle of the guiding surface 17, this design realizes a progressive triggering process, avoiding signal fluctuations caused by instantaneous impacts; this structure converts the displacement and force changes of mechanical motion into electrical signal output, and through the synergistic effect of the guiding surface 17 - elastic member - sensor, provides a triggering mechanism for the intelligent control of the vacuum cleaner 5.

[0051] Embodiment 4

[0052] This embodiment provides a method for packaging washing powder, including: driving the rotating shaft 10 by a motor to drive the roller 13 to rotate. The material storage groove 12 on the roller 13 scoops up the washing powder in the material bin 1 during the rotation process. When the material storage groove 12 rotates to the downward position, the transmission device moves the sealing plate 6 downward to abut against the mouth of the packaging box 4. At this time, the washing powder in the material storage groove 12 falls into the box, realizing quantitative loading. After the loading is completed, the roller 13 continues to rotate, the material storage groove 12 leaves the feeding position, the sealing plate 6 resets under the action of the elastic member, the conveyor 3 sends away the filled packaging box 4, and at the same time conveys the next empty box to the loading position, and so on in a cycle.

[0053] The working principle of the present invention is: The conveyor 3 continuously conveys the empty packaging boxes 4 to the loading station below the silo 1. The washing powder in the silo 1 enters the storage tank 12 of the rotating roller 13 through the discharge housing 2. The motor drives the rotating shaft 10 to drive the rotating roller 13 to rotate, and the storage tank 12 scoops up a fixed amount of washing powder. When the storage tank 12 starts to rotate counterclockwise from the vertically upward state (box loading mode, the one-way bearing 11 is locked, and the connecting frame 9 is rigidly linked with the rotating shaft 10), the abutting plate 8 rotates synchronously with the rotating roller 13. When the storage tank 12 rotates 90° (the notch is horizontally facing the side), the end of the abutting plate 8 first contacts the top of the sealing plate 6, decomposes the tangential force of the circular motion into a vertical component force, and pushes the sealing plate 6 to slide downward along the side wall of the discharge housing 2 against the resistance of the first elastic member 7. Before the storage tank 12 rotates to the 180° position, the sealing plate 6 has already advanced to block the opening of the packaging box 4, forming a sealed space. At this time, the notch of the storage tank 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 started because the abutting plate 8 presses the push-button switch 14 on the side wall of the discharge housing 2, creating a local negative pressure inside the box and sucking the dust generated during the falling process to the filtration system in real time. When the abutting plate 8 passes over the push-button switch 14, the abutting plate 8 synchronously rotates to a position away from the sealing plate 6, and the sealing plate 6 resets upward under the restoring force of the first elastic member 7, releasing the loaded packaging box 4. The conveyor 3 sends it away and conveys the next empty box. If it is switched to the bag loading mode, the motor drives the rotating shaft 10 to rotate clockwise, the one-way bearing 11 is in a free state, the abutting plate 8 is stationary, the sealing plate 6 is no longer pressed down, and the washing powder directly falls into the flexible packaging bag.

[0054] The circuits, electronic components, and modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve improvements to software and methods either.

[0055] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A washing powder packaging device, characterized in that, Comprising: A conveyor (3) for conveying packaging boxes (4); A silo (1) supported above the conveyor (3) by a bracket, and a discharge housing (2) communicating with the bottom of the silo (1). A roller (13) is rotatably connected in the discharge housing (2) through a rotating shaft (10). The rotating shaft (10) is driven by a motor, and a storage groove (12) is provided on the side wall of the roller (13); A sealing plate (6) slidably sleeved on the side wall of the discharge housing (2) and elastically connected to the side wall of the sealing plate (6) through a first elastic member (7); A transmission device for drivingly connecting the rotating shaft (10) and the sealing plate (6). When the storage groove (12) on the roller (13) driven by the rotating shaft (10) rotates to a downward position, the rotating shaft (10) drives the sealing plate (6) to move downward through the transmission device to press against the packaging box (4) located below the sealing plate (6).

2. The washing powder packaging device according to claim 1, characterized in that, The transmission device includes an abutting plate (8) connected to the rotating shaft (10) through a connecting frame (9). The abutting plate (8) is located outside the discharge housing (2) and above the sealing plate (6). The distance between the abutting 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 abutting plate (8) and the rotating shaft (10) is greater than the distance between the notch of the storage groove (12) and the rotating shaft (10), and the abutting plate (8) is located on one side in the length direction of the storage groove (12).

3. The a washing powder packaging device according to claim 2, wherein, The abutting plate (8) is arranged along the circumferential direction of the roller (13) such that the abutting plate (8) is an arc-shaped structure and has the same center as the roller (13).

4. The washing powder packaging device according to claim 3, wherein, Both ends of the abutting plate (8) are respectively located on both sides in the width direction of the storage groove (12).

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

6. The laundry detergent packaging device according to claim 2, wherein, A dust collector (5) is provided on one side of the conveyor (3), and an air inlet end of the dust collector (5) is communicated with a pipeline (20); A dust suction port (21) communicating with the inside thereof is provided through one side of the sealing plate (6), and the dust suction port (21) is communicated with the pipeline (20).

7. A washing powder packaging device according to claim 6, characterized in that, A push-button switch (14) cooperating with the abutting plate (8) is provided on the side wall of the discharge housing (2). When the storage groove (12) rotates from a vertically downward state to a vertically upward state, the abutting plate (8) can squeeze the push-button switch (14) to start the dust collector (5) electrically connected to the push-button switch (14).

8. A washing powder packaging device according to claim 7, characterized in that, The push-button 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 a guiding surface (17) in contact and cooperation with the abutting plate (8) is provided at the end of the button (16). The guiding surface (17) is inclined. The pressure sensor (18) is provided in the housing (15), and the pressure sensor (18) is located on one side of the button (16).

9. The washing powder packaging device according to claim 2, characterized in that, A rubber layer is provided at the bottom of the abutting plate (8).

10. A method for packaging washing powder, realized by the washing powder packaging device described in claim 1, characterized in that, It includes: The motor drives the rotating shaft (10) to drive the rotating roller (13) to rotate. The material storage groove (12) on the rotating roller (13) scoops up the washing powder in the material bin (1) during the rotation. When the material storage groove (12) rotates to the downward position, the transmission device moves the sealing plate (6) downward to abut against the mouth of the packaging box (4). At this time, the washing powder in the material storage groove (12) falls into the box, realizing quantitative feeding. After the feeding is completed, the rotating roller (13) continues to rotate, the material storage groove (12) leaves the feeding position, the sealing plate (6) resets under the action of the elastic member, the conveyor (3) sends away the filled packaging box (4), and at the same time conveys the next empty box to the feeding position, and so on in a cycle.

Images