A screw-feed powder packaging machine

By introducing an adjustable conveying pipe and a two-section spiral blade transmission structure into the screw feeder, the impact of conveying pipe length adjustment on the feed inlet height is solved, achieving continuous powder conveying and stable packaging bags, and improving the applicability and packaging accuracy of the equipment.

CN224427914UActive Publication Date: 2026-06-30GUANGZHOU SHIHAO BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-06-30

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Abstract

This utility model belongs to the technical field of screw packaging machines, specifically a screw-feeding powder packaging machine, including a base, a support frame fixedly connected to the base, a cylinder fixedly installed on the support frame, a conveying pipe fixedly connected to the bottom of the cylinder, an adjusting pipe slidably fitted on the outer surface of the conveying pipe, a height adjusting component for driving the adjusting pipe height adjustment installed on the conveying pipe, a drive motor fixedly installed on the top of the cylinder, and a feeding sleeve fixedly connected to the output end of the drive motor. This device can independently drive the adjusting pipe to slide along the conveying pipe, changing only the height of the discharge end, without needing to adjust the height of the cylinder or the inlet pipe related to the storage, ensuring that the feeding of the storage funnel is not disturbed, and guaranteeing continuous and efficient feeding.
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Description

Technical Field

[0001] This utility model relates to the field of screw packaging machine technology, specifically a screw-feeding powder packaging machine. Background Technology

[0002] In industrial production, screw filling and packaging machines are often used to fill and package powdery materials (such as powder). This type of screw feeder mainly includes a frame, on which a storage funnel and a conveying pipe are mounted. The storage funnel and the conveying pipe are fixedly connected. A screw is installed inside the conveying pipe, and the screw is connected to a motor for transmission. The powdery material in the storage funnel enters the conveying pipe through the inlet. The motor drives the screw to rotate, thereby transporting the powdery material in the conveying pipe towards the outlet, and then into the packaging bag. However, the screw conveying pipe is generally of a fixed length. When adjusting the length of the screw conveying pipe, the overall height of the equipment is raised or lowered, which in turn raises or lowers the screw conveying pipe. This causes the height of the inlet of the storage funnel to rise or fall, affecting the feeding of the storage funnel. To facilitate independent adjustment of the length of the screw conveying pipe, we propose a screw-feeding powder packaging machine. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a screw-feed powder packaging machine, which solves the problems mentioned below.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A screw-feed powder packaging machine includes a base, a support frame fixedly connected to the base, a cylinder fixedly mounted on the support frame, a feeding pipe fixedly connected to the bottom of the cylinder, an adjusting pipe slidably fitted on the outer surface of the feeding pipe, a height adjusting component for driving the adjusting pipe to adjust its height installed on the feeding pipe, a drive motor fixedly mounted on the top of the cylinder, a feeding sleeve fixedly connected to the output end of the drive motor, a first spiral feeding blade fixedly fitted on the outer surface of the feeding sleeve, a discharge plate fixedly connected to the bottom of the adjusting pipe, a rotating rod rotatably connected to the top of the discharge plate, a second spiral feeding blade fixedly fitted on the outer surface of the rotating rod, a transmission component for driving the rotating rod to rotate installed inside the feeding sleeve, and a feed pipe fixedly connected to the top of the cylinder.

[0006] Preferably, the height adjustment assembly includes a first fixed plate and a second fixed plate. The first fixed plate is fixedly fitted onto the outer surface of the feed pipe, and the second fixed plate is fixedly fitted onto the outer surface of the adjustment pipe. Two sets of symmetrically distributed adjustment electric push rods are fixedly installed on the first fixed plate, and the output end of the adjustment electric push rod is fixedly connected to the second fixed plate.

[0007] Preferably, the bottom of the first fixed plate is fixedly connected to multiple sets of limiting guide rods, the limiting guide rods are slidably inserted on the second fixed plate, and the bottom of the limiting guide rods is fixedly connected to a limiting block.

[0008] Preferably, the transmission assembly includes a transmission rod, on which an insertion cavity is provided, and the transmission rod slides through the insertion cavity.

[0009] Preferably, the transmission rod is a square rod, and the insertion cavity is adapted to the transmission rod.

[0010] Preferably, the bottom of the base is fixedly equipped with multiple sets of support feet.

[0011] Preferably, a connecting support plate is fixedly connected to the bottom of the second fixing plate, a positioning ring is fixedly connected to the bottom of the connecting support plate, and an inflatable airbag is fixedly installed on the inner wall of the positioning ring.

[0012] Preferably, the outer surface of the regulating tube is fixedly fitted with an anti-slip rubber sleeve.

[0013] Preferably, the outer surface of the inflatable airbag is provided with multiple sets of anti-slip rubber protrusions.

[0014] Preferably, an air pump is installed on the support frame, and the air pump is fixedly connected to the inflatable airbag through an air pipe.

[0015] This utility model provides a screw-feed powder packaging machine. Compared with the prior art, it has the following advantages:

[0016] 1. Enables independent adjustment of the material conveying height to avoid affecting the feeding process.

[0017] The regulating pipe can be driven to slide along the conveying pipe independently, changing only the height of the discharge end. There is no need to adjust the height of the cylinder or the feed pipe related to the storage, ensuring that the feeding of the storage funnel is not disturbed and guaranteeing the continuity and efficiency of feeding.

[0018] 2. Two-stage screw feeding and drive system ensures uniform and uninterrupted powder conveying.

[0019] The two-stage spiral feeding system, through the continuous pushing of the two spiral blades, avoids the accumulation and blockage of powder at the connection between the conveying pipe and the regulating pipe, ensuring uniform and stable powder conveying and improving packaging and metering accuracy.

[0020] The transmission structure, which uses a square transmission rod to fit the through cavity, not only achieves stable transmission of the drive motor to the rotating rod, but also allows the rotating rod to slide up and down with the adjustment tube, completely solving the problem of "transmission interruption during height adjustment" and balancing adjustment flexibility and feeding continuity.

[0021] 3. The packaging bag is securely positioned and highly adaptable, while also protecting the packaging's appearance.

[0022] The airbag, controlled by an air pump, can inflate and expand according to the diameter of the packaging bag, fitting the inner wall of packaging bags of different sizes, thus enabling the positioning of packaging bags of various specifications and improving the versatility of the equipment.

[0023] The anti-slip rubber protrusions on the outside of the inflatable airbag, together with the anti-slip rubber sleeve on the outside of the adjustment tube, can greatly improve the friction between the packaging bag and the equipment, preventing the bag from slipping off during the packaging process; at the same time, the soft rubber material can reduce the squeezing and scratching of the packaging bag by the equipment, protecting the integrity of the packaging appearance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the present utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the main structure of the present utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the cylindrical structure of this utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the cylindrical structure of this utility model. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the cylindrical body of this utility model;

[0029] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0030] In the diagram: 1. Base; 2. Support frame; 3. Feed pipe; 4. Drive motor; 5. Cylinder; 6. Adjusting electric push rod; 7. First fixed plate; 8. Second fixed plate; 9. Adjusting pipe; 10. Air pump; 11. Anti-slip rubber sleeve; 12. Connecting support plate; 13. Air duct; 14. Discharge plate; 15. First spiral feeding blade; 16. Second spiral feeding blade; 17. Insertion cavity; 18. Transmission rod; 19. Feeding sleeve; 20. Conveying pipe; 21. Positioning ring; 22. Inflatable airbag; 23. Rotating rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 This utility model provides a technical solution: a screw-feed powder packaging machine, including a base 1, a support frame 2 fixedly connected to the base 1, a cylinder 5 fixedly installed on the support frame 2, a feeding pipe 20 fixedly connected to the bottom of the cylinder 5, an adjusting pipe 9 slidably fitted on the outer surface of the feeding pipe 20, a height adjusting component for driving the adjusting pipe 9 to adjust its height installed on the feeding pipe 20, a drive motor 4 fixedly installed on the top of the cylinder 5, a feeding sleeve 19 fixedly connected to the output end of the drive motor 4, a first spiral feeding blade 15 fixedly fitted on the outer surface of the feeding sleeve 19, a discharge plate 14 fixedly connected to the bottom of the adjusting pipe 9, a rotating rod 23 rotatably connected to the top of the discharge plate 14, a second spiral feeding blade 16 fixedly fitted on the outer surface of the rotating rod 23, a transmission component for driving the rotating rod 23 to rotate installed inside the feeding sleeve 19, and a feed pipe 3 fixedly connected to the top of the cylinder 5.

[0033] During material feeding, the drive motor 4 is started, which drives the first spiral feeding blade 15 to rotate. The first spiral feeding blade 15 pushes the powder inside the cylinder 5 downwards, and the powder enters the conveying pipe 20. When the first spiral feeding blade 15 rotates, it drives the second spiral feeding blade 16 to rotate through the transmission component. Then, under the pushing action of the second spiral feeding blade 16, the powder will be discharged through the bottom of the adjusting pipe 9. When it is necessary to adjust the feeding height of this equipment, the adjusting pipe 9 is driven to slide along the conveying pipe 20 through the height adjusting component. When the conveying pipe 20 slides up and down, it will drive the rotating rod 23 and the second spiral feeding blade 16 to move up and down. The second spiral feeding blade 16 will extend or extend into the feeding sleeve 19. Thus, when it is not necessary to adjust the overall height of the equipment, the feeding height of the adjusting pipe 9 of this equipment can be adjusted separately.

[0034] The height adjustment assembly includes a first fixed plate 7 and a second fixed plate 8. The first fixed plate 7 is fixedly mounted on the outer surface of the feed pipe 20, and the second fixed plate 8 is fixedly mounted on the outer surface of the adjustment pipe 9. Two sets of symmetrically distributed adjustment electric push rods 6 are fixedly installed on the first fixed plate 7, and the output end of the adjustment electric push rod 6 is fixedly connected to the second fixed plate 8.

[0035] The electric push rod 6 is adjusted to drive the second fixed plate 8 to move up and down. When the second fixed plate 8 moves up and down, it will drive the adjusting tube 9 to move up and down.

[0036] The bottom of the first fixed plate 7 is fixedly connected to multiple sets of limiting guide rods. The limiting guide rods slide through the second fixed plate 8, and the bottom of the limiting guide rods is fixedly connected to a limiting block. Under the action of the limiting guide rods, the adjusting tube 9 can move up and down stably.

[0037] The transmission assembly includes a transmission rod 18, and the rotating rod 23 has an insertion cavity 17. The transmission rod 18 slides through the insertion cavity 17, and the top end of the transmission rod 18 is fixedly connected to the inner top of the feeding sleeve 19.

[0038] The transmission rod 18 is a square rod, and the insertion cavity 17 is adapted to the transmission rod 18. When the feeding sleeve 19 rotates, since the transmission rod 18 is fixedly connected to the top end of the feeding sleeve 19, the transmission rod 18 will drive the rotating rod 23 and the second spiral feeding blade 16 to rotate, thereby realizing the screw pushing action on the powder. The transmission rod 18 slides through the insertion cavity 17, and the bottom of the rotating rod 23 is rotatably connected to the discharge plate 14. When the adjusting tube 9 moves up and down, it will pull the rotating rod 23 up and down along the transmission rod 18.

[0039] Multiple sets of support feet are fixedly installed at the bottom of the base 1 to improve the support stability of the device.

[0040] The bottom of the second fixed plate 8 is fixedly connected to a connecting support plate 12, the bottom of the connecting support plate 12 is fixedly connected to a positioning ring 21, and an inflatable airbag 22 is fixedly installed on the inner wall of the positioning ring 21.

[0041] The outer surface of the regulating tube 9 is fixedly fitted with an anti-slip rubber sleeve 11.

[0042] The outer surface of the inflatable airbag 22 is provided with multiple sets of anti-slip rubber protrusions.

[0043] An air pump 10 is installed on the support frame 2, and the air pump 10 is fixedly connected to the inflatable airbag 22 through the air pipe 13.

[0044] The inflatable airbag 22 can be used to position the packaging bag body that is sleeved on the outside of the adjusting tube 9. The inflatable airbag 22, in conjunction with the anti-slip rubber sleeve 11, can not only increase the friction and improve the positioning ability of the packaging bag body, but also reduce scratches on the packaging bag body through the action of the rubber.

[0045] Working principle: When feeding, the drive motor 4 is started, which drives the first spiral feeding blade 15 to rotate. The first spiral feeding blade 15 pushes the powder inside the cylinder 5 downward, and the powder enters the conveying pipe 20. When the first spiral feeding blade 15 rotates, it drives the second spiral feeding blade 16 to rotate through the transmission component. Then, under the pushing action of the second spiral feeding blade 16, the powder will be discharged through the bottom of the adjusting pipe 9. When it is necessary to adjust the feeding height of this equipment, the adjusting pipe 9 is driven to slide along the conveying pipe 20 by adjusting the electric push rod 6. When the conveying pipe 20 slides up and down, it will drive the rotating rod 23 and the second spiral feeding blade 16 to move up and down. The second spiral feeding blade 16 will extend or extend into the feeding sleeve 19. Thus, when it is not necessary to adjust the overall height of the equipment, the feeding height of the adjusting pipe 9 of this equipment can be adjusted separately.

[0046] The inflatable airbag 22 can be used to position the packaging bag body that is sleeved on the outside of the adjusting tube 9. The inflatable airbag 22, in conjunction with the anti-slip rubber sleeve 11, can not only increase the friction and improve the positioning ability of the packaging bag body, but also reduce scratches on the packaging bag body through the action of the rubber.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw-feed powder packaging machine, comprising a base (1), characterized in that: A support frame (2) is fixedly connected to the base (1), and a cylinder (5) is fixedly installed on the support frame (2). A feeding pipe (20) is fixedly connected to the bottom of the cylinder (5). An adjusting pipe (9) is slidably fitted on the outer surface of the feeding pipe (20). A height adjustment component for driving the adjusting pipe (9) to adjust its height is installed on the feeding pipe (20). A drive motor (4) is fixedly installed on the top of the cylinder (5). A feeding sleeve (19) is fixedly connected to the output end of the drive motor (4). A first spiral feeding blade (15) is fixedly fitted on the outer surface of the feeding sleeve (19). A discharge plate (14) is fixedly connected to the bottom of the adjusting pipe (9). A rotating rod (23) is rotatably connected to the top of the discharge plate (14). A second spiral feeding blade (16) is fixedly fitted on the outer surface of the rotating rod (23). A transmission component for driving the rotating rod (23) to rotate is installed inside the feeding sleeve (19). A feed pipe (3) is fixedly connected to the top of the cylinder (5).

2. The screw-feed powder packaging machine according to claim 1, characterized in that: The height adjustment assembly includes a first fixed plate (7) and a second fixed plate (8). The first fixed plate (7) is fixedly mounted on the outer surface of the feed pipe (20), and the second fixed plate (8) is fixedly mounted on the outer surface of the adjustment pipe (9). Two sets of symmetrically distributed adjustment electric push rods (6) are fixedly installed on the first fixed plate (7), and the output end of the adjustment electric push rod (6) is fixedly connected to the second fixed plate (8).

3. The screw-feed powder packaging machine according to claim 2, characterized in that: The bottom of the first fixed plate (7) is fixedly connected to multiple sets of limiting guide rods, which slide through the second fixed plate (8) and have a limiting block fixedly connected to the bottom of the limiting guide rod.

4. A screw-feed powder packaging machine according to claim 3, characterized in that: The transmission assembly includes a transmission rod (18), and the rotating rod (23) has an insertion cavity (17) which is slidably inserted inside the insertion cavity (17).

5. A screw-feed powder packaging machine according to claim 4, characterized in that: The transmission rod (18) is a square rod, and the insertion cavity (17) is adapted to the transmission rod (18).

6. A screw-feed powder packaging machine according to claim 5, characterized in that: The base (1) has multiple sets of support feet fixedly installed at its bottom.

7. A screw-feed powder packaging machine according to claim 6, characterized in that: The bottom of the second fixed plate (8) is fixedly connected to a connecting support plate (12), the bottom of the connecting support plate (12) is fixedly connected to a positioning ring (21), and an inflatable airbag (22) is fixedly installed on the inner wall of the positioning ring (21).

8. A screw-feed powder packaging machine according to claim 7, characterized in that: The outer surface of the regulating tube (9) is fixedly fitted with an anti-slip rubber sleeve (11).

9. A screw-feed powder packaging machine according to claim 8, characterized in that: The outer surface of the inflatable airbag (22) is provided with multiple sets of anti-slip rubber protrusions.

10. A screw-feed powder packaging machine according to claim 9, characterized in that: An air pump (10) is installed on the support frame (2), and the air pump (10) is fixedly connected to the inflatable airbag (22) through the air pipe (13).