High-speed transverse sealing powder packaging machine

Abstract

The invention discloses a high-speed transverse sealing powder packaging machine, and relates to the technical field of powder packaging. The packaging machine comprises a rack, a multi-station material preparation device, a multifunctional material conveying assembly, a vertical sealing mechanism, a transverse sealing and cutting mechanism and a driving mechanism. The multi-station material preparation device is provided with a rotating disc with a plurality of material storage bins, parallel material preparation is achieved through a plurality of screw metering feeders, and continuous asynchronous material supply is achieved. The multifunctional material conveying assembly comprises a material conveying pipe capable of axially moving and a piston inside the material conveying pipe, and the piston divides an inner cavity of the material conveying pipe and forms variable cavities. The driving mechanism drives the conveying pipe to move between the high station and the low station, so that the lower end of the conveying pipe can push the packaging bag into an outer package to complete filling when the lower end of the conveying pipe is located at the low station, negative pressure is generated through relative movement of the conveying pipe and the piston in the rising process, and in-bag exhaust and film surface arrangement are achieved. The technical problems of large-dose powder packaging in the aspects of efficiency and automation degree are effectively solved, and the powder packaging machine is particularly suitable for high-speed and large-dose packaging scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder packaging, in particular to a high-speed transverse sealing powder packaging machine. BACKGROUND

[0002] Powder material packaging is a key production link in the food, pharmaceutical, chemical and other industries, and its packaging efficiency and precision directly affect product quality and production cost.

[0003] As shown in the Chinese patent with the authorization announcement number CN114030689B, the prior art provides a powder quantitative feeder, the core innovation of which lies in adopting a rotating drum structure cooperating with a groove depth adjusting piece to realize accurate metering and rapid discharge of powder by dynamically adjusting the volume of the groove on the rotating drum. This technology effectively solves the problems of powder residue and inaccurate metering caused by the rotation of the traditional powder feeding shaft being too fast.

[0004] However, through in-depth analysis, it is found that this kind of prior art still has certain limitations, especially in the face of large-dose, single-bag heavy weight (such as hundreds of grams to several kilograms per bag) powder material packaging scenarios, its system architecture faces the following challenges:

[0005] Packaging efficiency bottleneck: most of the existing quantitative feeders are in single-point feeding mode. For large-dose filling, the long filling time seriously restricts the packaging rhythm of the whole machine, making it difficult to realize real high-speed production. The device lacks parallel operation capability and cannot prepare materials for subsequent workstations while filling a packaging bag, resulting in low comprehensive efficiency of the device.

[0006] Insufficient automation: the filled powder bag is relatively fluffy due to the air contained therein, and the existing devices generally lack effective bag interior exhaust and bag body arrangement mechanisms, making it difficult to automatically and regularly pack the fluffy bag body into an external secondary container such as a carton or a woven bag, often requiring manual intervention, increasing cost and affecting the fully automated process of the production line.

[0007] Therefore, there is an urgent need in the field for a new type of high-speed powder packaging machine to break through the above bottlenecks from the system level, especially for the packaging of large-dose, heavy powder materials. SUMMARY

[0008] The purpose of the present application is to solve the problems existing in the prior art and provide a high-speed transverse sealing powder packaging machine.

[0009] In order to achieve the above purpose, the present application adopts the following technical solutions:

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

[0011] a rack;

[0012] The multi-station material preparer is fixed to the upper part of the frame by a support, and is internally provided with a rotating disc capable of intermittent rotation, and a plurality of storage bins are arranged in the circumferential direction in the rotating disc;

[0013] The multi-functional material conveying assembly is vertically arranged on the front side of the frame, and comprises a guide sleeve fixedly installed on the front side of the frame and a material conveying pipe slidingly arranged in the guide sleeve, the guide sleeve is in communication with the bottom port of a storage bin through a connecting pipe, and a piston is slidingly installed in the material conveying pipe, the piston divides the inner cavity of the material conveying pipe into an upper chamber and a lower chamber, and a feeding window is formed in the inner wall of the lower chamber of the piston and is in communication with the bottom opening of the connecting pipe;

[0014] The vertical sealing mechanism is used for heat plastic sealing of the vertical edge of the packaging film covering the surface of the material conveying pipe;

[0015] The transverse sealing and cutting mechanism is used for heat plastic sealing and cutting of the packaging film located at the bottom of the material conveying pipe;

[0016] The driving mechanism comprises a servo deceleration motor and an electric push rod, the servo deceleration motor is fixedly installed at the bottom of the multi-station material preparer and drives the rotating disc to rotate, and the electric push rod is fixedly connected with the frame;

[0017] The extension end of the electric push rod is connected with the material conveying pipe and the piston through a differential connection assembly, and is used for driving the whole material conveying pipe to reciprocate between a high position and a low position; when the material conveying pipe is at the low position, the lower end thereof extends below the transverse sealing and cutting mechanism; and when the material conveying pipe is at the high position, the lower end thereof is retracted to a position above the transverse sealing and cutting mechanism.

[0018] Preferably, the differential connection assembly comprises a connecting column fixedly installed at the upper end of the material conveying pipe, a first spring is sleeved on the surface of the connecting column, a transmission plate is fixedly installed at the extension end of the electric push rod, the transmission plate is slidingly connected with the connecting column, and a limiting cap is fixedly installed at the upper end of the connecting column; when the extension end of the electric push rod extends downward, the first spring is compressed, and the material conveying pipe moves downward; and when the extension end of the electric push rod retracts, the transmission plate is constrained by the limiting cap, and the material conveying pipe is lifted.

[0019] The differential connection assembly further comprises a second spring, the bottom end of the second spring is fixedly connected with the surface of the guide sleeve, the top end of the second spring is fixedly connected with the upper end of the material conveying pipe, the extension end of the electric push rod extends into the material conveying pipe and is fixedly connected with the piston.

[0020] Preferably, a ventilation hole is formed in the piston and is in communication with the upper chamber and the lower chamber, and a one-way exhaust valve is installed at the upper end of the piston and is used for controlling the opening and closing of the ventilation hole.

[0021] Preferably, a dust cloth bag is fixedly installed in the feeding pipe, and the dust cloth bag is arranged in the section between the piston and the feeding window.

[0022] Preferably, a plurality of screw metering feeders are fixedly installed in the rack, and the bottom ends of the screw metering feeders are fixed to the upper surface of the multi-station material preparer, and the discharge ports of the screw metering feeders are respectively aligned with the storage bins in the rotary table when the rotary table is stopped.

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

[0024] Two guide wheels are rotationally installed on the front side of the rack, and the vertical edges of the packaging film are clamped between the two guide wheels.

[0025] Preferably, a conveyor is arranged on the front side of the rack, and the conveyor conveys the outer package to the lower side of the feeding pipe, when the feeding pipe moves down to the low station, the feeding pipe pushes the packaging film into the outer package, at this time, the feeding window is aligned with the discharge port of the connecting pipeline, and the storage bin, the connecting pipeline, the feeding window and the feeding pipe form a passage, and the materials in each storage bin are sequentially guided into the bag-shaped packaging film at the bottom of the feeding pipe.

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

[0027] 1. The packaging machine provided by the present application drives the feeding pipe to move between the high and low stations as a whole, so that when the lower end of the feeding pipe is in the low station, the bag-shaped packaging film is pushed into the outer package for loading, and after loading, transverse sealing and cutting are completed, the feeding pipe is pressed again to make the upper end of the bag body filled with materials enter the outer package such as a carton or a woven bag, and the design integrates the processes of inner bag forming, filling, sealing and outer box loading into one, replaces manual placement, improves production efficiency and reduces cost.

[0028] 2. The packaging machine provided by the present application couples the lifting action of the feeding pipe with the relative motion of the piston through the differential connection assembly, and uses the relative motion to form a negative pressure in the lower chamber of the feeding pipe, which can suck away the residual air above the powder in the bag, reduce the volume of the bag body, be beneficial to obtaining a flat transverse sealing effect, and be beneficial to subsequent pressing of the inner bag into the outer package; on the other hand, the negative pressure can act on the packaging film at the same time, adsorb the packaging film to make the packaging film tightly adhere to the outer wall of the feeding pipe, effectively prevent the film port from sagging, thereby avoiding interference with the transverse sealing action or subsequent conveying, and ensuring the continuity and stability of the process.

[0029] Especially crucially, the application seamlessly integrates the functions of "feed pipe lifting", "in-bag air exhaust" and "film surface arrangement" in one coherent mechanical action through a set of differential connection assemblies, replacing the complex system of multiple independent execution elements (such as air pumps, additional clamping mechanisms) in traditional solutions, and fundamentally realizing the functional integration, stable and reliable operation and cost optimization of the equipment.

[0030] 3、The packaging machine provided by the application, by setting the multi-station material preparer with multiple storage bins, can prepare materials for other storage bins while filling materials into one packaging bag, effectively breaking through the speed bottleneck of a single feeding process, and particularly suitable for high-speed packaging scenarios of large-dose powders.

[0031] 4、The packaging machine provided by the application, by setting the dust cloth bag in the lower chamber of the feed pipe, can effectively intercept the dust rising during filling, reduce dust pollution, and at the same time, the airflow disturbance caused by the reciprocating movement of the feed pipe and the piston will cause the dust cloth bag to shake, thereby shaking off the accumulated dust back into the packaging bag, avoiding unnecessary loss of materials, and its self-cleaning function prolongs the maintenance cycle of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The packaging machine provided by the application is a three-dimensional structure diagram Figure 1 .

[0033] Figure 2 The packaging machine provided by the application is a three-dimensional structure diagram Figure 2 .

[0034] Figure 3 The internal structure diagram of the multi-station material preparer provided by the application.

[0035] Figure 4 The packaging machine provided by the application is a partial side cross-sectional structure diagram

[0036] Figure 5 The packaging machine provided by the application is a partial cross-sectional structure diagram

[0037] Figure 6 The packaging machine provided by the application is a front cross-sectional structure diagram

[0038] Figure 7 The packaging machine provided by the application is a structure enlargement diagram of A in Figure 6 .

[0039] Figure 8 The packaging machine provided by the application is a schematic diagram of the up-and-down movement of the feed pipe and the piston

[0040] Figure 9A schematic diagram of the up-and-down movement of the lower end of the material conveying pipe.

[0041] In the figure:

[0042] 100, rack; 101, film guide cover; 102, guide wheel;

[0043] 200, multi-station material preparer; 201, turntable; 203, storage bin; 204, servo deceleration motor;

[0044] 301, guide sleeve; 302, material conveying pipe; 303, connecting pipeline; 304, piston; 305, feeding window; 306, air vent; 307, one-way exhaust valve; 308, dust cloth bag;

[0045] 400, vertical sealing mechanism; 500, transverse 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 package; 902, packaging film. DETAILED DESCRIPTION

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

[0049] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0050] Referring to Figures 1-9 A high-speed transverse sealing powder packaging machine, comprising a rack 100, a multi-station material preparer 200, a multifunctional material conveying assembly 300, a vertical sealing mechanism 400, a transverse sealing and cutting mechanism 500 and a driving mechanism, specifically as follows:

[0051] The multi-station material preparer 200, as shown in Figure 3 It is fixed on the upper part of the rack 100 by a support, and its inside is provided with an intermittently rotatable turntable 201, and the turntable 201 is provided with a plurality of storage bins 203 along the circumference.

[0052] The multifunctional material conveying assembly 300, as shown inFigure 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] The transversal sealing and cutting mechanism 500, as shown in Figure 3 , seals and cuts the packaging film 902 at the bottom of the feeding pipe 302; specifically, the transversal sealing and cutting mechanism 500 includes a pair of oppositely arranged heat sealing clamps driven by an electric motor, one of which is provided with a cutting knife, and the heat sealing clamps can seal the clamped packaging film transversely, and the cutting knife can cut the transversely sealed bag from the upper tube film to separate the bag, and at the same time, the bag opening of the separated bag and the bottom end of the tube film are sealed. The transversal sealing and cutting mechanism 500 is a prior art and will not be described here.

[0056] The driving mechanism, as shown in Figure 4 , includes a servo reducer motor 204 and an electric push rod 600. The servo reducer motor 204 is fixedly installed at the bottom of the multi-station material preparer 200 and drives the rotation of the rotating disc 201. As shown in Figure 3 , the storage bin 203 has four, and the servo reducer motor 204 is programmed and controlled by a control system (such as PLC) to drive the rotating disc 201 to rotate by 90 degrees each time.

[0057] The electric push rod 600 is fixedly connected with the rack 100, wherein, as shown in Figure 6 , the telescopic end of the electric push rod 600 is connected with the feeding pipe 302 and the piston 304 through a differential connection assembly, for driving the feeding pipe 302 to reciprocate between the high position and the low position as a whole; when the feeding pipe 302 is at the low position, the lower end thereof extends below the transversal sealing and cutting mechanism 500; when the feeding pipe 302 is at the high position, the lower end thereof is retracted to the position above the transversal sealing and cutting mechanism 500;

[0058] The differential connection assembly includes a connecting column 700 fixedly installed at the upper end of the feeding pipe 302, and a first spring 701 sleeved on the surface of the connecting column 700. The telescopic end of the electric push rod 600 is fixedly installed with a transmission plate 702, which is slidingly connected with the connecting column 700. The upper end of the connecting column 700 is fixedly installed with a limiting cap. When the telescopic end of the electric push rod 600 is extended downward, the first spring 701 is compressed, and the 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 feeding pipe 302 is lifted 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 with the surface of the guide sleeve 301, and the top end of which is fixedly connected with the upper end of the feeding pipe 302. The telescopic end of the electric push rod 600 extends into the feeding pipe 302 and is fixedly connected with the piston 304.

[0060] In this embodiment, 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 to the upper surface of the multi-station material preparer 200. 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, as shown in Figs. 8 and 9. The storage bins 203 are four in number, and the screw metering feeders 800 are three in number. The three sets of screw metering feeders 800 correspond to the three storage bins 203 directly below them. Figure 1 、 Figure 2 、 Figure 3 As shown in Figs. 8 and 9, the storage bins 203 are four in number, and the screw metering feeders 800 are three in number. The three sets of screw metering feeders 800 correspond to the three storage bins 203 directly below them.

[0061] In this embodiment, a conveyor 900 is arranged on the front side of the rack 100. The conveyor 900 conveys the outer packaging 901 to the lower side of the feeding pipe 302. When the feeding pipe 302 moves downward to the lower station, the feeding pipe 302 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 feeding pipe 302 form a passage. The materials in each storage bin 203 are sequentially guided into the bag-shaped packaging film 902 at the bottom of the feeding pipe 302.

[0062] It should be noted that the precise metering process of the materials often uses relatively low-speed screw feeding and the like to ensure accuracy. The larger the dose, the longer the feeding time, which makes the subsequent filling, transverse sealing, and cutting mechanical actions have to wait for the completion of the lengthy metering process, resulting in a serious idle period of the equipment and restricting the high-speed packaging rhythm. Taking the example of three sets of screw metering feeders 800 being started simultaneously and respectively accurately charging T / 3 of powder into the corresponding three storage bins 203, the rotary table 201 rotates intermittently at a set rhythm.

[0063] First filling: one storage bin 203 filled with T / 3 of powder first rotates to the filling station, and the powder in the storage bin 203 is completely poured into the packaging bag through the connecting pipe 303 and the feeding pipe 302;

[0064] Second filling: the rotary table 201 rotates by one station, and the second storage bin 203 filled with T / 3 of powder enters the filling station, and the second pouring is completed. At this time, the total amount of powder in the bag is 2T / 3.

[0065] Third filling: the rotary table 201 rotates again, and the third storage bin 203 enters the station, and the last T / 3 of pouring is completed. At this time, the total mass of the powder in the packaging bag is exactly T.

[0066] The design utilizes three sets of screw metering feeders 800 to synchronously meter and feed to three storage bins 203, and decomposes the metering task of a large dose T of material into three small dose metering actions, thereby greatly shortening the metering time of a single bag of material and meeting the needs of high-speed loading and packaging.

[0067] The electric push rod 600 drives the upward and downward movement of the feeding pipe 302 and the piston 304 through the differential connection assembly, as follows:

[0068] Reference Figure 8 a. The feeding 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, the transmission plate 702 is constrained by the limiting cap at the upper end of the connecting column 700, and lifts the feeding pipe 302 to the highest position through the connecting column 700, the piston 304 has no relative movement with the feeding pipe 302 or is in the initial relative position, and the feeding window 305 is blocked by the inner wall of the guide sleeve 301 and is in the closed state.

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

[0070] Reference Figure 8 c. The feeding pipe 302 is in the lifting / venting and adsorbing state: after filling is completed, the telescopic end of the electric push rod 600 is retracted, the piston 304 is directly driven by the electric push rod 600, and the retraction displacement is fixed (set as D2), while the lifting of the feeding pipe 302 is driven by the restoring force of the second spring 703, and the lifting height of the feeding pipe 302 is set as D1, since there is a relative height difference L=D2-D1 (and D2>D1), Figure 8 b to Figure 8The process of the state shown in c causes the piston 304 to move upward relative to the material conveying pipe 302 by a distance L, so that the lower chamber volume of the material conveying pipe 302 is increased, a negative pressure is formed, and the negative pressure is drawn through the lower end opening of the material conveying pipe 302, on the one hand, the residual air above the powder in the bag is drawn away, facilitating the subsequent pressing of the inner bag into the outer package 901, and on the other hand, the packaging film 902 is adsorbed to tightly adhere to the outer wall of the material conveying pipe 302, preventing the packaging film 902 from sagging and avoiding the interference of the packaging film 902 on the horizontal sealing action or subsequent conveying, thereby ensuring the continuity and stability of the process.

[0071] It is worth noting that the prior art often uses a gas pump to suck and exhaust the air in the packaging bag, and the dust is sucked into the pump body together, which causes pollution and pump blockage failure, and the start and stop of the air suction action need to be accurately controlled in time with the horizontal sealing, cutting and other actions, which has the risk of different steps. The present application drives the relative movement of the piston 304 to generate a negative pressure through a set of differential connection assemblies, and the process of exhausting the air in the packaging bag is instantaneous and self-adapting. It is a necessary link in the lifting process of the material conveying pipe 302, and its action is naturally synchronized with the packaging process without additional control instructions, such as Figure 8 c, the negative pressure is automatically generated with the lifting of the material conveying pipe 302, and the action response perfectly fits the high-speed production rhythm, and at the same time, the airflow disturbance brought by it naturally realizes the self-cleaning function of the dust cloth bag 308; the weak negative pressure generated can also adsorb the packaging film 902 to tightly adhere to the pipe wall, so as to drive the packaging film 902 at the bottom of the material conveying pipe 302 to rise again. This design of a single action achieving multiple synergistic benefits is incomparable to simple functional components such as gas pumps.

[0072] The working principle of the present application is as follows:

[0073] Bag making and positioning: as shown in Figure 6 , the packaging film 902 is guided by the film guide cover 101 and the guide wheel 102, is sealed into a cylindrical shape by the vertical sealing mechanism 400, the conveyor 900 conveys the outer package 901 to the position directly below the material conveying pipe 302, the electric push rod 600 drives the material conveying pipe 302 to move downward to the low position, and the packaging film 902 at the lower end of the material conveying pipe 302 is pushed into the outer package 901, which will be described in detail in Figure 9 d;

[0074] Filling: the feeding window 305 is opened, corresponding Figure 8 b state, the rotary disc 201 rotates the metering storage bin 203 to the docking position, the powder falls into the packaging bag through the connecting pipe 303, the feeding window 305 and the material conveying pipe 302, which will be described in detail in Figure 9 e;

[0075] Exhausting, horizontal sealing and cutting: after filling, the material conveying pipe 302 is lifted to the upper side of the horizontal sealing and cutting mechanism 500 (corresponding Figure 9In the process, the relative movement between the piston 304 and the material conveying pipe 302 generates negative pressure, and the air in the bag is exhausted and the film surface is arranged. Subsequently, the transverse sealing and cutting mechanism 500 is actuated to complete the transverse sealing and cutting of the bag opening;

[0076] Bag pressing into box: as shown in g, after transverse sealing and cutting, the electric push rod 600 drives the material conveying pipe 302 to move downward for a short distance again, and the lower end of the material conveying pipe 302 is used to press the filled and sealed inner bag into the outer package 901 completely, and a complete working cycle is completed. After that, the material conveying pipe 302 is reset, the conveyor 900 moves the full outer package 901 out, and the new empty outer package 901 is in place, and the cycle continues. Figure 9

[0077] In summary, the high-speed transverse sealing powder packaging machine provided by the present application discards the traditional "single metering-single filling" serial working mode, improves the packaging efficiency, breaks through the speed bottleneck of large-dose filling, and realizes the full-flow automatic packaging from the inner package to the outer package 901. The packaging film 902 is pushed into the outer package 901 by the material conveying pipe 302, and then the material is loaded, and the outer package 901 provides support force, avoiding damage to the packaging film 902 due to excessive material weight. The unique negative pressure generation mechanism synchronously solves the problems of air exhaust in the bag and bag head arrangement, and the overall structure design is compact and reasonable, reliable in operation and strong in adaptability. The design integrates the inner bag forming, filling, sealing and outer box loading into one, replaces manual placement, improves production efficiency and reduces cost.

[0078] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes to the technical solutions and inventive concepts of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.​

Claims

1. A high speed transversal seal powder packaging machine comprising a frame (100), characterized in that, The utility model relates to a multi-station material preparer, a multi-functional material conveying assembly, a vertical sealing mechanism, a horizontal sealing and cutting mechanism and a driving mechanism. The multi-station material preparer (200) is fixed to the upper part of the rack (100) by a support, and a rotating disc (201) that can rotate intermittently is arranged inside the multi-station material preparer (200), a plurality of storage bins (203) are arranged in the rotating disc (201) in the circumferential direction, and the rotating disc (201) is 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 in communication with the bottom port of a storage bin (203) through a connecting pipe (303), the piston (304) is slidingly installed in the material conveying pipe (302), the piston (304) divides the inner cavity of the material conveying pipe (302) into an upper chamber and a lower chamber, and a feeding window (305) is formed in the inner wall of the lower chamber of the piston (304) and is in communication with the bottom opening of the connecting pipe (303). The vertical sealing mechanism (400) is arranged on the surface of the material conveying pipe (302) and covers a packaging film (902), and the vertical sealing mechanism (400) performs heat plastic sealing on the vertical edge of the packaging film (902). The horizontal sealing and cutting mechanism (500) performs horizontal heat plastic sealing and cutting on the packaging film (902) located at the bottom of the material conveying pipe (302). The driving mechanism comprises a servo deceleration motor (204) and an electric push rod (600), the servo deceleration 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 extension end of the electric push rod (600) is connected with the material conveying pipe (302) and the piston (304) through a differential connection assembly, so as to drive the material conveying pipe (302) to reciprocate between a high position and a 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 horizontal 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 horizontal sealing and cutting mechanism (500).

2. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: The differential connection assembly comprises a connecting column (700) fixedly installed on the upper end of the material conveying pipe (302), a first spring (701) is sleeved on the surface of the connecting column (700), the extension end of the electric push rod (600) is fixedly installed with a transmission plate (702), the transmission plate (702) is slidingly connected with the connecting column (700), a limiting cap is fixedly installed on the upper end of the connecting column (700), when the extension end of the electric push rod (600) extends downward, the first spring (701) is compressed, the material conveying pipe (302) moves downward, and when the extension end of the electric push rod (600) retracts, the transmission plate (702) is constrained by the limiting cap and the material conveying pipe (302) is lifted.

3. A high speed transversal seal powder packaging machine according to claim 2, characterized in that: The differential connection assembly comprises a second spring (703), a bottom end of the second spring (703) is fixedly connected with a surface of the guide sleeve (301), a top end of the second spring (703) is fixedly connected with an upper end of the material conveying pipe (302), a telescopic end of the electric push rod (600) extends into the material conveying pipe (302) and is fixedly connected with a piston (304).

4. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: The piston (304) is provided with a ventilation hole (306) communicating with the upper chamber and the lower chamber, and a one-way exhaust valve (307) for controlling opening and closing of the ventilation hole (306) is arranged at an upper end of the piston (304).

5. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: A dust cloth bag (308) is fixedly arranged in the material conveying pipe (302) and is arranged in a section between the piston (304) and the material feeding window (305).

6. A high speed transversal seal powder packaging machine according to claim 1, characterized in that: A plurality of screw metering feeders (800) are fixedly arranged in the rack (100), bottom ends of the screw metering feeders (800) are fixed on an upper surface of the multi-station material preparer (200), and 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) stops intermittently.

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

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

9. 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) conveys the outer package (901) to a lower side of the material conveying pipe (302), when the material conveying pipe (302) moves downward to a lower station, the material conveying pipe (302) pushes the packaging film (902) into the outer package (901), at this time, the material feeding window (305) is aligned with a discharge port of the connecting pipeline (303), the storage bin (203), the connecting pipeline (303), the material feeding window (305) and the material conveying pipe (302) form a passage, and materials in each storage bin (203) are sequentially guided into the packaging film (902) in a bag shape at a bottom of the material conveying pipe (302) through the passage.

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