A high-speed horizontal sealing powder packaging machine

Abstract

This invention discloses a high-speed horizontal sealing powder packaging machine, relating to the field of powder packaging technology. The packaging machine includes a frame, a multi-station feeder, a multi-functional conveying assembly, a vertical sealing mechanism, a horizontal sealing and cutting mechanism, and a drive mechanism. The multi-station feeder is equipped with a turntable with multiple storage bins, and feeds materials in parallel through multiple screw metering feeders, achieving continuous asynchronous feeding. The multi-functional conveying assembly includes an axially movable conveying pipe and its internal piston, which divides the inner cavity of the conveying pipe to form variable chambers. The drive mechanism drives the conveying pipe to move between high and low stations, so that when its lower end is at the low station, it can push the packaging bag into the outer packaging to complete the filling, and during the upward movement, it uses the relative motion with the piston to generate negative pressure, achieving air removal inside the bag and film surface finishing. This effectively solves the technical problems of efficiency and automation in large-dose powder packaging, and is particularly suitable for high-speed, large-dose packaging scenarios.

Description

Technical Field

[0001] This invention relates to the field of powder packaging technology, and in particular to a high-speed horizontal sealing powder packaging machine. Background Technology

[0002] Powder packaging is a key production link in industries such as food, pharmaceuticals, and chemicals. Its packaging efficiency and precision directly affect product quality and production costs.

[0003] As shown in Chinese invention patent CN114030689B, this prior art provides a powder metering device. Its core innovation lies in the use of a rotating drum structure combined with a groove depth adjustment component. By dynamically adjusting the volume of the groove on the rotating drum, precise powder metering and rapid discharge are achieved. This technology effectively solves the problems of powder residue and inaccurate metering caused by excessively fast rotation of traditional powder feeding shafts.

[0004] However, after in-depth analysis, it was found that this type of existing technology still has certain limitations, especially when dealing with packaging scenarios for large-dose powder materials with relatively heavy single-bag weights (such as hundreds of grams to several kilograms per bag). Its system architecture faces the following challenges:

[0005] Packaging efficiency bottleneck: Existing quantitative feeders are mostly single-point feeding devices. For large-volume fillings, the long filling time severely restricts the overall packaging cycle time, making it difficult to achieve truly high-speed production. The equipment lacks parallel operation capabilities, unable to prepare materials for subsequent stations while filling one packaging bag, resulting in low overall equipment efficiency.

[0006] Insufficient automation: The powder bags are relatively loose after filling due to the air inside. Existing equipment generally lacks an effective mechanism for venting air from the bag and sorting the bag body. As a result, the loose bag body is difficult to be automatically and neatly packed into secondary containers such as cardboard boxes or woven bags. Manual intervention is often required, which increases costs and affects the fully automated process of the production line.

[0007] Therefore, there is an urgent need in this field for a new type of high-speed powder packaging machine that can break through the above-mentioned bottlenecks at the system level, especially for packaging large doses and heavy powder materials. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-speed horizontal sealing powder packaging machine.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A high-speed horizontal sealing powder packaging machine, comprising:

[0011] frame;

[0012] A multi-station material preparation device is fixed to the upper part of the frame by a bracket. It has an intermittently rotating turntable inside, and multiple storage bins are arranged circumferentially inside the turntable.

[0013] A multi-functional material conveying assembly is vertically arranged on the front side of the frame, including a guide sleeve fixedly installed on the front side of the frame and a material conveying pipe slidably arranged in the guide sleeve. The guide sleeve is connected to the bottom port of a storage bin through a connecting pipe. A piston is slidably installed in the material conveying pipe, and the piston divides the inner cavity of the material conveying pipe into an upper chamber and a lower chamber. The inner wall of the lower chamber of the piston has a feeding window that communicates with the bottom opening of the connecting pipe.

[0014] A vertical sealing mechanism is provided, wherein the surface of the feeding pipe is covered with a packaging film, and the vertical sealing mechanism performs heat sealing on the vertical edge of the packaging film;

[0015] The horizontal sealing and cutting mechanism performs horizontal heat sealing and cutting of the packaging film located at the bottom of the conveying tube;

[0016] The drive mechanism includes a servo geared motor and an electric push rod. The servo geared motor is fixedly installed at the bottom of the multi-station material preparer and drives the turntable to rotate. The electric push rod is fixedly connected to the frame.

[0017] The telescopic end of the electric push rod is connected to the feed pipe and the piston through a differential connection assembly, which is used to drive the feed pipe to reciprocate between the high position and the low position. When the feed pipe is in the low position, its lower end extends to the bottom of the horizontal sealing and cutting mechanism. When the feed pipe is in the high position, its lower end retracts to the upper side of the horizontal sealing and cutting mechanism.

[0018] Preferably, the differential connection assembly includes a connecting column fixedly installed at the upper end of the feed pipe, a first spring sleeved on the surface of the connecting column, a transmission plate fixedly installed at the telescopic end of the electric push rod, the transmission plate being slidably connected to the connecting column, and a limit cap fixedly installed at the upper end of the connecting column. When the telescopic end of the electric push rod extends downward, it compresses the first spring, causing the feed pipe to move downward. When the telescopic end of the electric push rod retracts, the transmission plate, constrained by the limit cap, lifts the feed pipe.

[0019] The differential connection assembly also includes a second spring, the bottom end of which is fixedly connected to the surface of the guide sleeve, the top end of which is fixedly connected to the upper end of the feed tube, and the telescopic end of the electric push rod extends into the feed tube and is fixedly connected to the piston.

[0020] Preferably, the piston has a vent hole that connects the upper chamber and the lower chamber, and a one-way exhaust valve for controlling the opening and closing of the vent hole is installed at the upper end of the piston.

[0021] Preferably, a dustproof bag is fixedly installed inside the conveying pipe, and the dustproof bag is disposed in the section between the piston and the feed window.

[0022] Preferably, multiple screw metering feeders are fixedly installed inside the frame, and the bottom end of the screw metering feeder is fixed to the upper surface of the multi-station material preparation device. The discharge port of the screw metering feeder is aligned with the storage bin inside the turntable when it stops intermittently.

[0023] Preferably, a thin-film guide cover is fixedly installed on the front side of the frame, and the thin-film guide cover is sleeved on the outside of the guide sleeve.

[0024] The front side of the frame is rotatably mounted with two guide wheels that rotate relative to each other, and the vertical edge of the packaging film is clamped between the two guide wheels.

[0025] Preferably, a conveyor is provided on the front side of the frame. The conveyor transports the outer packaging to the lower side of the conveying pipe. When the conveying pipe moves down to the low position, it pushes the packaging film into the outer packaging. At this time, the inlet window is aligned with the outlet of the connecting pipe. The storage bin, connecting pipe, inlet window, and conveying pipe form a passage. The materials in each storage bin are sequentially introduced into the bag-shaped packaging film sealed at the bottom of the conveying pipe through the passage.

[0026] The present invention has the following beneficial effects:

[0027] 1. The packaging machine proposed in this invention moves the entire conveying pipe between high and low positions. When the lower end is at the low position, the bag-shaped packaging film is pushed into the outer packaging for filling. After filling, horizontal sealing, and cutting are completed, the conveying pipe is pressed down to allow the upper end of the filled bag to enter the outer packaging such as a carton or woven bag. This design integrates multiple processes such as inner bag forming, filling, sealing and outer box packing into one unit, replacing manual placement, improving production efficiency and reducing costs.

[0028] 2. The packaging machine proposed in this invention, through the differential connection component, couples the lifting action of the conveying pipe with the relative movement of the piston. This relative movement creates a negative pressure in the lower chamber of the conveying pipe. This negative pressure can, on the one hand, remove residual air above the powder in the bag, reducing the bag volume. This not only facilitates a smooth horizontal sealing effect but also makes it easier to press the inner bag into the outer packaging. On the other hand, this negative pressure can simultaneously act on the packaging film, adsorbing it and making it adhere tightly to the outer wall of the conveying pipe, effectively preventing the film opening from loosening and sagging. This avoids interference with the horizontal sealing action or subsequent conveying, ensuring the continuity and stability of the process.

[0029] Crucially, this invention seamlessly integrates multiple functions such as "lifting the feed pipe," "venting air inside the bag," and "finishing the film surface" into a single, continuous mechanical action through a set of differential connection components. This replaces the complex system in traditional solutions that requires multiple independent actuators (such as air pumps and additional clamping mechanisms), fundamentally achieving functional integration, stable and reliable operation, and optimized manufacturing costs.

[0030] 3. The packaging machine proposed in this invention, by setting up a multi-station material preparer with multiple storage bins, allows material to be prepared for other storage bins while filling one packaging bag with material. It processes the time-consuming metering and filling process in parallel with actions such as turntable rotation and horizontal sealing and cutting, effectively breaking through the speed bottleneck of the single feeding process. It is particularly suitable for high-speed packaging scenarios of large-dose powders.

[0031] 4. The packaging machine proposed in this invention has a dustproof bag installed in the lower chamber of the feeding pipe, which can effectively intercept the dust that rises during filling and reduce dust pollution. At the same time, the airflow disturbance caused by the reciprocating motion of the feeding pipe and the piston will cause the dustproof bag to shake, thereby shaking the accumulated dust back into the packaging bag, avoiding unnecessary material loss. Its self-cleaning function extends the maintenance cycle of the equipment. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of the packaging machine proposed in this invention. Figure 1 .

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the packaging machine proposed in this invention. Figure 2 .

[0034] Figure 3 This is a schematic diagram of the internal structure of the multi-station material preparer proposed in this invention.

[0035] Figure 4 This is a partial side sectional view of the packaging machine proposed in this invention.

[0036] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the conveying pipe proposed in this invention.

[0037] Figure 6 This is a schematic diagram of the cross-sectional structure of the conveying pipe proposed in this invention.

[0038] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A in the diagram.

[0039] Figure 8 This is a schematic diagram of the conveying pipe and piston moving up and down as proposed in this invention.

[0040] Figure 9This is a schematic diagram of the up-and-down movement of the lower end of the conveying pipe proposed in this invention.

[0041] In the picture:

[0042] 100. Frame; 101. Thin film guide cover; 102. Guide wheel;

[0043] 200. Multi-station material preparer; 201. Turntable; 203. Material storage bin; 204. Servo geared motor;

[0044] 301. Guide sleeve; 302. Conveying pipe; 303. Connecting pipe; 304. Piston; 305. Feed window; 306. Vent hole; 307. One-way exhaust valve; 308. Dustproof bag;

[0045] 400. Vertical sealing mechanism; 500. Horizontal sealing and cutting mechanism; 600. Electric push rod;

[0046] 700. Connecting column; 701. First spring; 702. Transmission plate; 703. Second spring;

[0047] 800. Screw metering feeder; 900. Conveyor; 901. Outer packaging; 902. Packaging film. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0049] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Reference Figures 1-9 A high-speed horizontal sealing powder packaging machine includes a frame 100, a multi-station material preparer 200, a multi-functional material conveying assembly 300, a vertical sealing mechanism 400, a horizontal sealing and cutting mechanism 500, and a drive mechanism, as detailed below:

[0051] Multi-station material feeder 200, such as Figure 3 As shown, it is fixed to the upper part of the frame 100 by a bracket, and has a turntable 201 that can rotate intermittently inside. Multiple storage bins 203 are arranged circumferentially inside the turntable 201.

[0052] Multifunctional material conveying assembly 300, such as Figure 3 , Figure 4 , Figure 5 As shown, it is vertically installed on the front side of the frame 100, including a guide sleeve 301 fixedly installed on the front side of the frame 100 and a conveying pipe 302 slidably installed in the guide sleeve 301. The guide sleeve 301 is connected to the bottom port of a storage bin 203 through a connecting pipe 303. A piston 304 is slidably installed in the conveying pipe 302. The piston 304 divides the inner cavity of the conveying pipe 302 into an upper chamber and a lower chamber. The inner wall of the lower chamber of the piston 304 is provided with a feeding window 305 that communicates with the bottom opening of the connecting pipe 303.

[0053] Among them, such as Figure 5 , Figure 7 As shown, a vent 306 connecting the upper and lower chambers is provided inside the piston 304. A one-way exhaust valve 307 for controlling the opening and closing of the vent 306 is installed at the upper end of the piston 304. Additionally, a dustproof bag 308 is fixedly installed inside the feed pipe 302. The dustproof bag 308 is located in the section between the piston 304 and the feed window 305. It should be noted that, according to reference... Figure 5 Under normal conditions, the feed window 305 is offset from the bottom opening of the connecting pipe 303, and the inner wall of the guide sleeve 301 blocks the feed window 305, making the lower chamber a relatively closed chamber. When the piston 304 moves down and compresses the air in the lower chamber, the air in the lower chamber pushes open the one-way exhaust valve 307 and is discharged from the vent 306 to the upper chamber. When the piston 304 moves up, the air pressure in the lower chamber decreases. Since the one-way exhaust valve 307 automatically covers the vent 306, a negative pressure is formed in the lower chamber that changes with the movement of the piston 304. The resulting airflow disturbance will cause the dustproof bag 308 to shake, thereby shaking the accumulated dust back into the packaging bag, avoiding unnecessary material loss. Its self-cleaning function extends the maintenance cycle of the equipment.

[0054] Vertical sealing mechanism 400, such as Figure 3 As shown, the surface of the conveying pipe 302 is covered with a packaging film 902. The vertical sealing mechanism 400 heat seals the vertical edge of the packaging film 902. The vertical sealing mechanism 400 includes two electrically driven vertical heating plates with clamping action. The vertical sealing mechanism 400 is prior art and will not be described in detail here. Among them, a film guide cover 101 is fixedly installed on the front side of the frame 100. The film guide cover 101 is sleeved on the outside of the guide sleeve 301. The packaging film 902 is introduced through the gap between the film guide cover 101 and the guide sleeve 301 and wraps the surface of the conveying pipe 302. Two relatively rotating guide wheels 102 are rotatably installed on the front side of the frame 100. The vertical edge of the packaging film 902 is clamped between the two guide wheels 102. When the packaging film 902 moves a certain distance with the conveying pipe 302, the vertical heating plate of the vertical sealing mechanism 400 heat seals the longitudinal overlapping edge of the packaging film 902 to form a sealed cylindrical structure.

[0055] Horizontal sealing and cutting mechanism 500, such as Figure 3 As shown, it performs transverse heat sealing and cutting on the packaging film 902 located at the bottom of the conveying pipe 302; specifically, the transverse sealing and cutting mechanism 500 includes a pair of electrically driven heat sealing jaws arranged opposite each other, one of which is equipped with a cutter. The heat sealing jaws can perform transverse heat sealing on the clamped packaging film, and the cutter cuts and separates the transversely sealed bag body from the upper cylindrical film, while simultaneously sealing the bag mouth of the separated bag body and sealing the bottom end of the cylindrical film. The transverse sealing and cutting mechanism 500 is prior art and will not be described in detail here.

[0056] Drive mechanism, such as Figure 4 As shown, it includes a servo geared motor 204 and an electric push rod 600. The servo geared motor 204 is fixedly installed at the bottom of the multi-station material preparer 200 and drives the turntable 201 to rotate. Figure 3 As shown, there are four storage bins 203. The servo geared motor 204 is programmed and controlled by a control system (such as a PLC) to drive the turntable 201 to rotate 90 degrees each time.

[0057] The electric actuator 600 is fixedly connected to the frame 100, wherein, reference Figure 6 The telescopic end of the electric push rod 600 is connected to the conveying pipe 302 and the piston 304 through a differential connection assembly, which is used to drive the conveying pipe 302 to reciprocate between the high position and the low position. When the conveying pipe 302 is in the low position, its lower end extends to the bottom of the horizontal sealing and cutting mechanism 500. When the conveying pipe 302 is in the high position, its lower end retracts to the upper side of the horizontal sealing and cutting mechanism 500.

[0058] The differential connection assembly includes a connecting column 700 fixedly installed at the upper end of the feed pipe 302. A first spring 701 is sleeved on the surface of the connecting column 700. A transmission plate 702 is fixedly installed at the telescopic end of the electric push rod 600. The transmission plate 702 is slidably connected to the connecting column 700. A limit cap is fixedly installed at the upper end of the connecting column 700. When the telescopic end of the electric push rod 600 extends downward, it compresses the first spring 701, causing the feed pipe 302 to move downward. When the telescopic end of the electric push rod 600 retracts, the transmission plate 702 is constrained by the limit cap and lifts the feed pipe 302 through the transmission of the connecting column 700.

[0059] The differential connection assembly includes a second spring 703, the bottom end of which is fixedly connected to the surface of the guide sleeve 301, the top end of which is fixedly connected to the upper end of the feed pipe 302, and the telescopic end of the electric push rod 600 extends into the feed pipe 302 and is fixedly connected to the piston 304.

[0060] In this embodiment, multiple screw metering feeders 800 are fixedly installed inside the frame 100, and the bottom end of each screw metering feeder 800 is fixed to the upper surface of the multi-station feeder 200. The discharge ports of the screw metering feeders 800 are aligned with the storage bins 203 inside the turntable 201 when it stops intermittently. Figure 1 , Figure 2 , Figure 3 As shown, there are four storage bins 203 and three sets of screw metering feeders 800, with the three sets of screw metering feeders 800 corresponding to the three storage bins 203 directly below them.

[0061] In this embodiment, a conveyor 900 is provided on the front side of the frame 100. The conveyor 900 transports the outer packaging 901 to the lower side of the conveying pipe 302. When the conveying pipe 302 moves down to the low position, it pushes the packaging film 902 into the outer packaging 901. At this time, the feeding window 305 is aligned with the discharge port of the connecting pipe 303. The storage bin 203, the connecting pipe 303, the feeding window 305, and the conveying pipe 302 form a passage. The materials in each storage bin 203 are sequentially introduced into the bag-shaped packaging film 902 sealed at the bottom of the conveying pipe 302 through the above passage.

[0062] It should be noted that the precise metering process of materials often uses relatively low-speed screw feeding and other methods to ensure accuracy. The larger the dosage, the longer the feeding time. This means that subsequent mechanical actions such as filling, horizontal sealing and cutting must wait for the long metering process to be completed, resulting in a serious downtime in the equipment and restricting the high speed of packaging cycle. Taking the simultaneous start of three sets of screw metering feeders 800 to accurately fill the corresponding three storage bins 203 with powder of T / 3 as an example, the turntable 201 rotates intermittently according to the set cycle.

[0063] First filling: A storage silo 203 already filled with T / 3 powder is first rotated to the filling station, and the powder inside is put into the packaging bag through the connecting pipe 303 and the conveying pipe 302;

[0064] Second filling: Turntable 201 rotates one station, and the second storage bin 203 containing T / 3 of powder enters the filling station to complete the second feeding. At this time, the total amount of powder in the bag is 2T / 3.

[0065] The third filling: Turntable 201 rotates again, and the third storage bin 203 enters the workstation to complete the final T / 3 feeding. At this point, the total mass of powder in the packaging bag reaches exactly T.

[0066] This design utilizes three sets of screw metering feeders 800 to simultaneously meter and feed materials to three storage bins 203, breaking down the one-time, time-consuming large-dose metering task T into three simultaneous small-dose metering actions, thereby greatly shortening the metering time of a single bag of material and meeting the needs of high-speed filling and packaging.

[0067] The electric push rod 600 drives the conveyor pipe 302 and piston 304 to move up and down via the differential connection assembly, as detailed below:

[0068] refer to Figure 8 a. The material conveying pipe 302 is in the initial / high position state: the telescopic end of the electric push rod 600 is in the retracted state. At this time, under the constraint of the limit cap at the upper end of the connecting column 700, the transmission plate 702 lifts the material conveying pipe 302 to the highest position through the connecting column 700. The piston 304 and the material conveying pipe 302 have no relative movement or are in the initial relative position. The feed window 305 is blocked by the inner wall of the guide sleeve 301 and is in the closed state.

[0069] refer to Figure 8 b. When the conveying pipe 302 is in the downward / loading state: the telescopic end of the electric push rod 600 extends downward, pushing the transmission plate 702 to press down the first spring 701. The pressure is transmitted through the first spring 701, overcoming the elastic force of the second spring 703, and pushing the conveying pipe 302 downward as a whole. At the same time, the telescopic end of the electric push rod 600 also directly pushes the piston 304 downward synchronously. During this process, the lower end of the conveying pipe 302 extends into the outer packaging 901 (e.g., Figure 9 As shown in d), and the feed window 305 is aligned with the discharge port of the connecting pipe 303, the powder begins to fill. The downward movement of the piston 304 and the entry of the powder into the conveying pipe 302 will squeeze the air in the lower chamber. The air pushes open the one-way exhaust valve 307 and enters the upper chamber. Subsequently, the one-way exhaust valve 307 automatically closes.

[0070] refer to Figure 8 c. The conveying pipe 302 is in the lifting / venting and adsorption state: After filling is completed, the telescopic end of the electric push rod 600 retracts, the piston 304 is directly driven by the electric push rod 600, and its retraction displacement is fixed (set as D2), while the rise of the conveying pipe 302 is driven by the restoring force of the second spring 703. The rise height of the conveying pipe 302 is set as D1. Since there is a relative height difference L=D2-D1 (and D2>D1). Figure 8 The state shown in b has switched to Figure 8The process shown in state c causes the piston 304 to move upward a distance L relative to the conveying pipe 302, which increases the volume of the lower chamber of the conveying pipe 302 and creates a negative pressure. This negative pressure, through the opening at the lower end of the conveying pipe 302, removes residual air above the powder in the bag, making it easier to press the inner bag into the outer packaging 901. On the other hand, it adsorbs the packaging film 902, making it stick tightly to the outer wall of the conveying pipe 302, preventing it from sagging and avoiding interference with the horizontal sealing action or subsequent conveying, thus ensuring the continuity and stability of the process.

[0071] It is worth noting that existing technologies often use air pumps to evacuate the air from the packaging bag, but dust is also drawn into the pump body, leading to contamination and pump blockage. The start and stop of the evacuation operation requires precise timing control with actions such as sealing and cutting, posing a risk of asynchronous coordination. This invention, however, uses a differential connection assembly to drive the relative movement of piston 304 to generate negative pressure. The process of venting the packaging bag is instantaneous and adaptive. As an essential part of the lifting process of the conveyor pipe 302, its action is naturally synchronized with the packaging process, requiring no additional control commands. Figure 8 As shown in Figure c, negative pressure is automatically generated as the conveying pipe 302 is lifted, and the action response perfectly matches the high-speed production rhythm. At the same time, the resulting airflow disturbance naturally achieves the self-cleaning function of the dustproof bag 308. The generated weak negative pressure can also attract the packaging film 902 and make it stick tightly to the pipe wall, so as to drive the packaging film 902 at the bottom of the conveying pipe 302 to rise. This design, which achieves multiple synergistic benefits with a single action, is unmatched by simple functional components such as air pumps.

[0072] The working principle of this invention is as follows:

[0073] Bag making and placement: such as Figure 6 As shown, the packaging film 902 is guided by the film guide cover 101 and the guide wheel 102, and sealed into a cylindrical shape by the vertical sealing mechanism 400. The conveyor 900 transports the outer packaging 901 to directly below the conveying pipe 302. The electric push rod 600 drives the conveying pipe 302 to move down to a lower position, pushing the packaging film 902 at its lower end into the outer packaging 901. See details. Figure 9 d;

[0074] Filling: Feed window 305 opens, corresponding to Figure 8 In state b, the turntable 201 rotates the metered storage bin 203 to the docking station, and the powder falls into the packaging bag through the connecting pipe 303, the feeding window 305, and the conveying pipe 302. (See details...) Figure 9 e;

[0075] Exhausting, horizontal sealing and cutting off: After filling, the conveying pipe 302 is raised to the upper side of the horizontal sealing and cutting off mechanism 500 (corresponding to Figure 9(in state f), during this process, the relative movement of piston 304 and conveying pipe 302 generates negative pressure to vent air from inside the bag and arrange the film surface. Subsequently, the horizontal sealing and cutting mechanism 500 operates to complete the horizontal sealing and cutting of the bag opening;

[0076] Press-bag into box: such as Figure 9 As shown in g, after the horizontal seal is cut, the electric push rod 600 drives the conveyor pipe 302 to move down a certain distance briefly, using its lower end to completely press the filled and sealed inner bag into the outer packaging 901, completing one full work cycle. Afterwards, the conveyor pipe 302 resets, the conveyor 900 removes the filled outer packaging 901, and a new empty outer packaging 901 is placed in place, and the cycle continues.

[0077] In summary, the high-speed horizontal sealing powder packaging machine provided by this invention abandons the traditional "single metering-single filling" serial working mode, improves packaging efficiency, and breaks through the speed bottleneck of large-dose filling. After the packaging film 902 is pushed into the outer packaging 901 by the conveying pipe 302, the material is then filled. The outer packaging 901 provides support to prevent the material from damaging the packaging film 902 due to excessive weight. It realizes full-process automation from inner packaging to outer packaging 901, significantly reducing labor costs. Through a unique negative pressure generation mechanism, it simultaneously solves the problems of air venting inside the bag and bag head sorting. The overall structure is compact and reasonable, reliable in operation, and highly adaptable. This design integrates multiple processes such as inner bag forming, filling, sealing, and outer box packing into one unit, replacing manual placement, improving production efficiency, and reducing costs.

[0078] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high speed transversal seal powder packaging machine comprising a frame (100), characterized in that, The utility model relates to a vertical sealing and cutting device for packaging film, which comprises a rack (100), a multi-station material preparer (200) and a multi-functional material conveying assembly (300). The multi-station material preparer (200) is fixed to the upper part of the rack (100) by a support, and the inside of the multi-station material preparer (200) is provided with a rotating disc (201) that can rotate intermittently, and a plurality of storage bins (203) are arranged in the rotating disc (201) in the circumferential direction. The multi-functional material conveying assembly (300) is vertically arranged on the front side of the rack (100) and comprises a guide sleeve (301) fixedly installed on the front side of the rack (100) and a material conveying pipe (302) slidingly arranged in the guide sleeve (301), the guide sleeve (301) is communicated with the bottom port of a storage bin (203) through a connecting pipe (303), the material conveying pipe (302) is slidingly installed with a piston (304) in the inner cavity of the material conveying pipe (302), the inner cavity of the material conveying pipe (302) is divided into an upper chamber and a lower chamber by the piston (304), a feeding window (305) is formed in the inner wall of the lower chamber of the piston (304) and is communicated with the bottom opening of the connecting pipe (303), an air vent (306) is formed in the piston (304) and is communicated with the upper chamber and the lower chamber, a one-way exhaust valve (307) is installed at the upper end of the piston (304) and controls the opening and closing of the air vent (306), a dust cloth bag (308) is fixedly installed in the material conveying pipe (302) and is arranged in the section between the piston (304) and the feeding window (305). The vertical sealing mechanism (400) is used for heat sealing the vertical edge of the packaging film (902) on the surface of the material conveying pipe (302). The transverse sealing and cutting mechanism (500) is used for transversely heat sealing and cutting the packaging film (902) at the bottom of the material conveying pipe (302). The driving mechanism comprises a servo reduction motor (204) and an electric push rod (600), the servo reduction motor (204) is fixedly installed at the bottom of the multi-station material preparer (200) and drives the rotating disc (201) to rotate, and the electric push rod (600) is fixedly connected with the rack (100). The telescopic end of the electric push rod (600) is connected with the material conveying pipe (302) and the piston (304) through a differential connection assembly and is used for driving the material conveying pipe (302) to reciprocate between the high position and the low position, when the material conveying pipe (302) is at the low position, the lower end of the material conveying pipe (302) extends below the transverse sealing and cutting mechanism (500), and when the material conveying pipe (302) is at the high position, the lower end of the material conveying pipe (302) is retracted to the position above the transverse sealing and cutting mechanism (500). The differential connection assembly comprises a connecting column (700) fixedly installed at the upper end of the material feeding pipe (302), a first spring (701) sleeved on the surface of the connecting column (700), a transmission plate (702) fixedly installed at the telescopic end of the electric push rod (600), the transmission plate (702) being in sliding connection with the connecting column (700), a limiting cap fixedly installed at the upper end of the connecting column (700), when the telescopic end of the electric push rod (600) is extended downward, the first spring (701) is compressed, and the material feeding pipe (302) is lowered, when the telescopic end of the electric push rod (600) is retracted, the transmission plate (702) is constrained by the limiting cap, and the material feeding pipe (302) is lifted. The differential connection assembly further comprises a second spring (703), the bottom end of the second spring (703) being fixedly connected with the surface of the guide sleeve (301), the top end of the second spring (703) being fixedly connected with the upper end of the material feeding pipe (302), and the telescopic end of the electric push rod (600) extending into the material feeding pipe (302) and being fixedly connected with the piston (304).

2. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: A plurality of screw metering feeders (800) are fixedly installed in the rack (100), and the bottom ends of the screw metering feeders (800) are fixed on the upper surface of the multi-station material preparer (200), and the discharge ports of the screw metering feeders (800) are respectively aligned with the storage bins (203) in the rotary table (201) when the rotary table (201) is stopped intermittently.

3. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: A film guide cover (101) is fixedly installed on the front side of the rack (100), and the film guide cover (101) is sleeved on the outer side of the guide sleeve (301).

4. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: Two oppositely rotating guide wheels (102) are rotatably installed on the front side of the rack (100), and the vertical edges of the packaging film (902) are clamped between the two guide wheels (102).

5. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: A conveyor (900) is arranged on the front side of the rack (100), the conveyor (900) conveying the outer package (901) to the lower side of the material feeding pipe (302), when the material feeding pipe (302) is lowered to the lower station, the material feeding pipe (302) pushes the packaging film (902) into the outer package (901), at this time, the feeding window (305) is aligned with the discharge port of the connecting pipeline (303), and the storage bin (203), the connecting pipeline (303), the feeding window (305), and the material feeding pipe (302) form a passage, and the materials in each storage bin (203) are guided into the bag-shaped packaging film (902) at the bottom of the material feeding pipe (302) in sequence.

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