A dosing packaging machine

Abstract

The utility model provides a kind of quantitative packing machine, including rack, the lower hopper is connected to the upper end of rack, the lower end of lower hopper is communicated with lower feeding pipe, and the installation platform is equipped in upper end, and the installation platform is equipped with lower feeding motor, and its power output shaft is equipped with spiral feeding rod that extends into lower feeding pipe downward;Rack is equipped with quantitative conveyor below lower feeding pipe, including conveying groove, conveying belt and conveying motor, and there are multiple blocking bars outside conveying belt;Rack is connected extrusion wheel below one end of quantitative conveyor, and drive motor is equipped, and hot press plate is vertically arranged on one side of extrusion wheel, and there are vertical electric heating strips on both sides of hot press plate;Rack is equipped with hot cutting plate below hot press plate, and telescopic motor is equipped, and its telescopic shaft is connected with pressure cutting plate, and hot cutting plate has horizontal electric heating strip, and pressure cutting plate has horizontal cutting strip;Rack is equipped with reel inserting shaft outside extrusion wheel and hot press plate. The utility model optimizes the structure of discharging, and continuous bagging packaging is realized without opening bag and waiting, and packaging efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of material packaging technology and relates to a quantitative packaging machine. Background Technology

[0002] In modern industrial automated production systems, quantitative packaging, as a key process connecting production and distribution, is widely used in various fields such as food, chemicals, pharmaceuticals, and building materials. However, with the continuous growth in market demand for powder products, quantitative packaging of powders has gradually become a focus of industry attention. Unlike granular materials, powders have physical characteristics such as small particle size, poor flowability, easy dust generation, easy bridging, and easy adhesion, making it difficult to achieve instantaneous and free flow during the feeding process. To ensure metering accuracy and process controllability, existing quantitative packaging equipment for powders generally adopts a screw conveyor mechanism (i.e., a screw feeder) as the core feeding device. This structure uses a motor to drive the screw to rotate, gradually pushing the powder from the hopper to the weighing or volumetric metering unit, and then into the packaging bag.

[0003] While the spiral feeding method offers advantages in terms of control precision and dust control, its "gradual" feeding characteristic also brings significant drawbacks: the powder filling process is not instantaneous but requires a slow feeding process lasting several seconds or even longer. During this period, the packaging bag must remain open and stationary until the target weight or volume reaches the set value. This intermittent "open bag - wait - feed - close bag" operation mode severely restricts the overall cycle time of the packaging system, resulting in high equipment idle rate and low output per unit time. This bottleneck effect is particularly prominent in high-speed production lines, becoming a key obstacle to improving the efficiency of powder packaging automation. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative packaging machine that optimizes the feeding structure, eliminates the need for waiting to open bags, and enables continuous bagging and packaging operations, thereby effectively improving packaging efficiency.

[0005] To solve the above technical problems, this utility model provides a quantitative packaging machine, including a frame, a feeding hopper connected to the upper end of the frame, a feeding pipe connected downward to the lower end of the feeding hopper, an mounting platform provided at the upper end of the feeding hopper, a feeding motor mounted on the mounting platform, and a spiral feeding rod extending into the feeding pipe provided downward from the power output shaft of the feeding motor.

[0006] The frame is provided with a quantitative conveyor below the feed pipe. The quantitative conveyor includes a conveying trough with an open top, a conveyor belt movably connected in the conveying trough, and a conveying motor for driving the conveyor belt. The conveyor belt is provided with multiple baffles distributed along its length.

[0007] The frame is rotatably connected to an extrusion wheel below one end of the quantitative conveyor. The frame is equipped with a drive motor for driving the extrusion wheel to rotate. A hot press plate is vertically arranged on one side of the extrusion wheel. Vertical electric heating strips that can contact the outer periphery of the extrusion wheel are arranged on both sides of the hot press plate.

[0008] The frame has a hot cutting plate below the hot pressing plate. A telescopic motor is mounted on the frame facing the hot cutting plate. The telescopic shaft of the telescopic motor is connected to a pressure cutting plate that cooperates with the hot cutting plate. A horizontal electric heating strip is provided on the hot cutting plate facing the pressure cutting plate. A horizontal cutting strip is provided on the pressure cutting plate that cooperates with the horizontal electric heating strip.

[0009] The frame is provided with a roll insert shaft on the outside of both the extrusion roller and the hot press plate.

[0010] By adopting the above technical solution, when powder packaging is required, firstly, the roller with the plastic strip attached is installed in the corresponding position on the frame, and the plastic strip is pulled out and pulled to the appropriate position. After starting the equipment, the feeding motor drives the screw feeder to rotate, and the powder continuously and quantitatively falls from the feeding hopper through the feeding pipe into the conveying trough of the quantitative conveyor. Due to the baffles on the conveyor belt forming individual storage troughs, the powder will fall into different storage troughs in sequence. When the storage trough containing the powder moves to the downward tilting end of the quantitative conveyor, the powder falls into the packaging bag formed by the heat fusion of two plastic strips. At the same time, the drive motor drives the extrusion wheel to rotate, and the annular groove on the outer circumference of the extrusion wheel cooperates with the bagging groove on the hot press plate. The vertical electric heating strip heat fused the edges of the two plastic strips to form the edge seal of the packaging bag. Then, the telescopic motor drives the pressure cutting plate to contact the hot cutting plate, and the horizontal electric heating strip and the horizontal cutting strip cooperate to heat fused and cut the two plastic strips in the middle, thereby forming a complete packaging bag for the powder.

[0011] The present invention is further configured such that a mounting frame is provided at the upper end of the frame, and multiple support bars are provided downward on the lower side of the hopper, with a weighing sensor provided between each support bar and the mounting frame.

[0012] The present invention is further configured such that the lower ends of the conveying trough and the feeding pipe are provided with dust covers with lower openings, the lower ends of the dust covers extend to the height of the baffle, and the lower ends of the feeding pipe extend into the dust covers.

[0013] The present invention is further configured such that the quantitative conveyor is inclined downward toward one end of the extrusion wheel.

[0014] The present invention is further configured such that a receiving hopper is provided below the downward inclined end of the frame of the quantitative conveyor, the receiving hopper is located directly above the extrusion roller and the hot press plate, and the receiving hopper is open at both the top and bottom, with the top being larger than the bottom.

[0015] The present invention is further configured such that the outer periphery of the extrusion wheel is recessed inward to form an annular groove, and the hot press plate is recessed inward on the side facing the extrusion wheel to form a bagging groove that cooperates with the annular groove.

[0016] The present invention is further configured such that a horizontal groove is provided inwardly in the middle of the horizontal electric heating strip to cooperate with the horizontal cutting strip.

[0017] The present invention is further configured such that a guide shaft is provided on the side of each roll insert shaft near the extrusion wheel or the hot press plate.

[0018] The present invention is further configured such that the upper part of the hot press plate facing the extrusion wheel is rounded.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Firstly, by setting up a quantitative conveyor and using a storage trough formed by baffles, continuous and quantitative conveying of powder is achieved, avoiding the problem of long waiting time for opening packaging bags in the traditional screw feeding method, and significantly improving packaging efficiency.

[0021] Secondly, by utilizing the combination of extrusion rollers and hot press plates, along with the heat-sealing connection of the plastic strip edges by vertical electric heating strips, rapid sealing of the packaging bag edges is achieved. Through the combination of hot cutting plates and pressure cutting plates, and the setting of horizontal electric heating strips and horizontal cutting strips, the formation and cutting of packaging bags can be completed in one step, simplifying the packaging process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 It is a partial sectional view used to show the auger inside the hopper and the feed tube;

[0024] Figure 3 Used to illustrate the relationship between the positions of the extrusion rollers, hot press plate, hot cutting plate, and pressure cutting plate;

[0025] Figure 4 This is used to demonstrate the drive motor that drives the extrusion rollers to rotate.

[0026] The components include: 1. Frame; 2. Mounting frame; 3. Feed hopper; 4. Support bar; 5. Weighing sensor; 6. Feeding pipe; 7. Feeding motor; 8. Spiral feed rod; 9. Conveying trough; 10. Conveying belt; 11. Conveying motor; 12. Stop bar; 13. Dust cover; 14. Extrusion roller; 15. Drive motor; 16. Hot press plate; 17. Receiving hopper; 18. Vertical electric heating bar; 19. Annular groove; 20. Bag filling trough; 21. Hot cutting plate; 22. Telescopic motor; 23. Pressure cutting plate; 24. Horizontal electric heating bar; 25. Horizontal cutting strip; 26. Horizontal grooving; 27. Roller insert shaft; 28. Guide shaft. Detailed Implementation

[0027] The present invention provides a quantitative packaging machine in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0028] Example, refer to Figure 1-4 A quantitative packaging machine includes a frame 1, with a mounting frame 2 at the upper end of the frame 1. A feeding hopper 3 is connected to the upper end of the mounting frame 2. Four support bars 4 are arranged downwards on the lower side of the feeding hopper 3. A weighing sensor 5 is installed between each support bar 4 and the mounting frame 2. The weight reduction in the feeding hopper 3, detected by the four weighing sensors 5, indicates the amount of material to be packaged. A feeding pipe 6 is connected downwards to the lower end of the feeding hopper 3. A mounting platform is located at the upper end of the feeding hopper 3, and a feeding motor 7 is mounted on the mounting platform. A spiral feeding rod 8, extending into the feeding pipe 6, is driven downwards from the power output shaft of the feeding motor 7. The feeding motor 7 drives the spiral feeding rod 8 to rotate and feed the material.

[0029] A metering conveyor is installed below the feed pipe 6 on the frame 1. One end of the metering conveyor is inclined downwards. The metering conveyor includes a conveying trough 9 with an open top, a conveyor belt 10 movably connected within the conveying trough 9, and a conveyor motor 11 for driving the conveyor belt 10. The conveyor belt 10 has multiple baffles 12 distributed along its length. Both sides of each baffle 12 are in close contact with the inner wall of the conveying trough 9, so that a separate storage trough is formed between every two baffles 12. During movement, powder is continuously and meteredly added to each storage trough through the feed pipe 6, so that the screw feeder 8 does not need to be interrupted. A dust cover 13 with an open bottom is installed at the lower end of the conveying trough 9 and the feed pipe 6. The lower end of the dust cover 13 extends to the height of the baffles 12, and the lower end of the feed pipe 6 extends into the dust cover 13.

[0030] A pressing roller 14 is rotatably connected to the lower end of the quantitative conveyor at the bottom of the frame 1. A drive motor 15 is installed on the frame 1 to drive the pressing roller 14 to rotate. A hot press plate 16 is vertically arranged on one side of the pressing roller 14 on the frame 1. A receiving hopper 17 is arranged below the lower end of the quantitative conveyor at the bottom of the frame 1. The receiving hopper 17 is located directly above the pressing roller 14 and the hot press plate 16. The receiving hopper 17 is open at both the top and bottom, and is wider at the top and narrower at the bottom, so that the material falling from the storage tank can accurately fall into the packaging bag formed by the heat-melting connection of two plastic strips. Both sides of the hot press plate 16 are provided with a vertical electric heating strip 18 that can contact the outer periphery of the extrusion roller 14. After the extrusion roller 14 contacts the vertical electric heating strip 18, the edges of the two plastic strips can be heat-fused together. The outer periphery of the extrusion roller 14 is recessed inward to form an annular groove 19. The side of the hot press plate 16 facing the extrusion roller 14 is recessed inward to form a bagging groove 20 that matches the annular groove 19.

[0031] A hot-cutting plate 21 is provided below the hot-pressing plate 16 in the frame 1. A telescopic motor 22 is installed in the frame 1 facing the hot-cutting plate 21. The telescopic shaft of the telescopic motor 22 is connected to a pressure-cutting plate 23 that cooperates with the hot-cutting plate 21. A horizontal electric heating strip 24 is provided in the hot-cutting plate 21 facing the pressure-cutting plate 23. A horizontal cutting strip 25 that cooperates with the horizontal electric heating strip 24 is provided inward in the middle of the horizontal electric heating strip 24 that cooperates with the horizontal cutting strip 25. After the telescopic motor 22 drives the pressure-cutting plate 23 to contact the hot-cutting plate 21, the two plastic strips are heat-fused together in the middle and cut from the middle to form a packaging bag for packaging powder.

[0032] A roll insert 27 is provided on the outer side of the extrusion roller 14 and the hot press plate 16 of the frame 1. A guide shaft 28 is provided on the side of each roll insert 27 near the extrusion roller 14 or the hot press plate 16. The upper part of the hot press plate 16 facing the extrusion roller 14 is rounded. The plastic strip roll is sleeved on the roll insert 27. After the plastic strip is pulled out and passes around the guide shaft 28, it passes through the annular groove 19 and the bagging groove 20 respectively.

[0033] Working Principle: When powder packaging is required, firstly, the roller insert 27 with the plastic strip roll attached is installed in the corresponding position on the frame 1. The plastic strip is pulled out and passed around the guide shaft 28 to position it appropriately. After starting the equipment, the feeding motor 7 drives the screw feeder 8 to rotate. The powder continuously and quantitatively falls from the feeding hopper 3 through the feeding pipe 6 into the conveying trough 9 of the quantitative conveyor. Since the baffles 12 on the conveyor belt 10 form individual storage troughs, the powder will fall into different storage troughs in sequence. When the storage trough containing the powder moves to the downward tilting end of the quantitative conveyor, the powder falls accurately through the receiving hopper 17 into the packaging bag formed by the heat fusion connection of the two plastic strips. At the same time, the drive motor 15 drives the extrusion roller 14 to rotate. The annular groove 19 on the outer periphery of the extrusion roller 14 cooperates with the bag filling groove 20 on the hot press plate 16. The vertical electric heating strip 18 heat-fuses the edges of the two plastic strips to form the edge seal of the packaging bag. Next, the telescopic motor 22 drives the pressure cutting plate 23 to contact the hot cutting plate 21. The horizontal electric heating strip 24 and the horizontal cutting strip 25 cooperate to heat-melt and cut the two plastic strips in the middle, thereby forming a complete packaging bag for the powder.

[0034] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0035] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A quantitative packaging machine, comprising a frame (1), characterized in that, The upper end of the frame (1) is connected to a feeding hopper (3), the lower end of the feeding hopper (3) is connected to a feeding pipe (6), the upper end of the feeding hopper (3) is provided with an installation platform, the installation platform is equipped with a feeding motor (7), and the power output shaft of the feeding motor (7) is provided with a spiral feeding rod (8) extending into the feeding pipe (6). The frame (1) is provided with a quantitative conveyor below the feed pipe (6). The quantitative conveyor includes a conveying trough (9) with an open top, a conveyor belt (10) movably connected in the conveying trough (9), and a conveying motor (11) for driving the conveyor belt (10) to move. The conveyor belt (10) is provided with multiple baffles (12) distributed along its length direction. The frame (1) is rotatably connected to an extrusion wheel (14) at one end of the quantitative conveyor. The frame (1) is equipped with a drive motor (15) for driving the extrusion wheel (14) to rotate. A hot press plate (16) is provided on one side of the extrusion wheel (14). Vertical electric heating strips (18) that can contact the outer periphery of the extrusion wheel (14) are provided on both sides of the hot press plate (16). The frame (1) is provided with a hot cutting plate (21) below the hot pressing plate (16). The frame (1) is equipped with a telescopic motor (22) facing the hot cutting plate (21). The telescopic shaft of the telescopic motor (22) is connected to a pressure cutting plate (23) that cooperates with the hot cutting plate (21). The hot cutting plate (21) is provided with a horizontal electric heating strip (24) facing the pressure cutting plate (23). The pressure cutting plate (23) is provided with a horizontal cutting strip (25) that cooperates with the horizontal electric heating strip (24). The frame (1) is provided with a roll insert (27) on the outside of the extrusion wheel (14) and the hot press plate (16).

2. The quantitative packaging machine according to claim 1, characterized in that, The upper end of the frame (1) is provided with a mounting frame (2), and the lower side of the hopper (3) is provided with multiple support bars (4), and each support bar (4) is provided with a weighing sensor (5) between it and the mounting frame (2).

3. A quantitative packaging machine according to claim 1, characterized in that, The lower ends of the conveying trough (9) and the feeding pipe (6) are provided with dust covers (13) with openings at the lower ends. The lower end of the dust cover (13) extends to the height of the baffle (12), and the lower end of the feeding pipe (6) extends into the dust cover (13).

4. A quantitative packaging machine according to claim 1, characterized in that, The quantitative conveyor is inclined downward toward one end of the extrusion wheel (14).

5. A quantitative packaging machine according to claim 4, characterized in that, The frame (1) is provided with a receiving hopper (17) below the downward inclined end of the quantitative conveyor. The receiving hopper (17) is located directly above the extrusion wheel (14) and the hot press plate (16). The receiving hopper (17) is open at both the top and bottom and is larger at the top and smaller at the bottom.

6. A quantitative packaging machine according to claim 1, characterized in that, The outer periphery of the extrusion wheel (14) is recessed inward to form an annular groove (19), and the hot press plate (16) is recessed inward on the side facing the extrusion wheel (14) to form a bagging groove (20) that matches the annular groove (19).

7. A quantitative packaging machine according to claim 1, characterized in that, The horizontal electric heating strip (24) has a horizontal groove (26) inwardly arranged in the middle to cooperate with the horizontal cutting strip (25).

8. A quantitative packaging machine according to claim 1, characterized in that, The frame (1) is provided with a guide shaft (28) on the side of each roll insert (27) near the extrusion wheel (14) or the hot press plate (16).

9. A quantitative packaging machine according to claim 1, characterized in that, The upper part of the hot press plate (16) facing the extrusion wheel (14) is rounded.

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