A vibration damping device for a granule packaging machine

Abstract

This utility model relates to an anti-vibration compaction device, belonging to the technical field of granule packaging equipment. Specifically, it is an anti-vibration compaction device for a granule packaging machine, including a base platform, a feeding hopper, a vibration drive source mechanism, an anti-vibration compaction mechanism, a limiting clamping plate assembly, and multiple sets of paddle assemblies. The stirring frame of the anti-vibration compaction mechanism extends into the feeding hopper, and the paddle assemblies are slidably mounted on the stirring frame with their horizontal length decreasing layer by layer. The limiting clamping plate assembly constrains the horizontal vibration of the stirring frame. This utility model uses vibration to drive the paddle assemblies to adapt to the shape of the feeding hopper and stir the material, avoiding compaction and stratification, ensuring stable filling volume, and solving the problem of unstable filling volume caused by large differences in material particle size and easy compaction and stratification during vibration filling in granule packaging machines.

Description

Technical Field

[0001] This utility model relates to the field of granule packaging equipment technology, and in particular to an anti-vibration device for granule packaging machines. Background Technology

[0002] Currently, granule packaging machines are widely used in the packaging of granular materials in the food, pharmaceutical, and chemical preparation industries, especially for packaging small-dose mixed granules. These machines typically use a hopper to temporarily store the material and a measuring cup to control the filling volume for packaging.

[0003] A search revealed Chinese patent CN214875684U, which discloses a granule packaging machine. This granule packaging machine includes a packaging table, a box body, a receiving mechanism, a filling mechanism, a film unwinding mechanism, a forming device, a sealing mechanism, and an air inlet mechanism. The box body is connected to the packaging table. The receiving mechanism is installed on the packaging table, with one end extending into the box body and the other end for receiving upstream material. The filling mechanism is located inside the box body and connected to the receiving mechanism. The forming device and the film unwinding mechanism are both installed on the packaging table. The filling mechanism is used to fill the film in the forming device with material from the receiving mechanism. The forming device is used to shape the film containing material from the film unwinding mechanism. The sealing mechanism is located on the packaging table for sealing and cutting the shaped film. The air inlet mechanism is connected to the packaging table for inputting compressed air into the box body. This patented granule packaging machine effectively prevents material from getting damp during the packaging process and solves the problems of easily absorbing moisture, decomposing heat-sensitive components, and easily sticking together.

[0004] Based on the above search results and existing technologies, the following findings were made:

[0005] Existing granule packaging machines commonly suffer from material compaction and stratification issues when processing mixed granular materials with significant particle size variations (such as mixtures of potassium chloride raw materials with sucralose and citric acid excipients). The feed hoppers of existing granule packaging machines typically lack specific anti-vibration compaction structures. As the material flows through the hopper and rubber hose, vibrations during operation cause stratification due to differences in gravity and inertia, resulting in smaller particles sinking and larger particles floating. Simultaneously, vibration gradually reduces the gaps between materials, leading to localized compaction (especially in the lower part of the feed hopper near the rubber hose). This stratification and compaction directly result in significant variations in the amount of material packed within the same batch during packaging (e.g., some packages contain more raw materials, while others contain more excipients), severely impacting packaging accuracy and product quality. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes an anti-vibration compaction device for a granule packaging machine. This device comprises an anti-vibration compaction mechanism and multiple sets of paddle assemblies. One end of the stirring frame extends into the feed hopper. The paddle assemblies are slidably mounted on the stirring frame, with their horizontal length decreasing progressively from top to bottom. Their positions can be flexibly adjusted using a moving ring and a second fixing bolt. When the stirring frame vibrates under the drive of the vibration source mechanism, the stirring blades of the paddle assemblies adapt to the top-wide, bottom-narrow shape of the feed hopper, comprehensively agitating materials at different heights. This fundamentally prevents material compaction and stratification due to vibration—the upper paddles cover the upper wide area of ​​the feed hopper, while the lower paddles penetrate into the lower narrow area, ensuring uniform mixing of the material before packaging.

[0007] The technical solution to achieve the purpose of this utility model is as follows: a vibration damping device for a granule packaging machine, comprising a base platform and a feeding hopper, wherein the base platform is provided with a vibration drive source mechanism connected to the outer wall of the feeding hopper, and further comprising:

[0008] The vibration damping mechanism is installed on both the inner and outer sides of the feed hopper;

[0009] A limiting clamping plate assembly, wherein the limiting clamping plate assembly is detachably installed at the top opening of the feed hopper;

[0010] The vibration damping mechanism includes a frame-shaped agitator. One end of the agitator extends downward from the upper opening of the feed hopper into its interior, and the other end of the agitator is connected to a connecting rod. The connecting rod and the vibration drive source mechanism are connected by a threaded connection through a fixed component.

[0011] Multiple sets of paddle assemblies are arranged inside the feed hopper, and each paddle assembly slides on a rod of the agitator located inside the feed hopper. The horizontal length of the multiple sets of paddle assemblies decreases from top to bottom.

[0012] In some embodiments, the paddle assembly includes a movable ring sleeved on the agitator and two sets of agitating blades symmetrically fixed to the outside of the movable ring. Each movable ring is threaded with a second fixing bolt, which thread the corresponding movable ring onto the agitator.

[0013] In some embodiments, the vibration drive source mechanism includes a vibration drive device and rotating shafts connected to both sides of the vibration drive device. The two rotating shafts are movably connected to the inner wall of the base platform. The output shaft of the vibration drive device is connected to a transmission rod, and the transmission rod is connected to the corresponding outer wall of the feed hopper.

[0014] In some embodiments, the fixing component includes a connecting part connected to the short rod, the connecting part conforming to the housing surface of the vibration drive device, and multiple sets of third fixing bolts threaded onto the connecting part, the fixing component being connected to the corresponding housing of the vibration drive device via the third fixing bolts.

[0015] In some embodiments, the limiting clamp assembly includes a frame-shaped limiting frame, with two sets of clamps on both sides of the bottom of the limiting frame. The clamps are snapped onto the top edge of the feed hopper, and the outer side of the clamps is threaded with a first fixing bolt that is connected to the corresponding wall surface of the feed hopper. The top horizontal end of the agitator passes through the gap between the limiting frame and the top of the feed hopper.

[0016] In some embodiments, the limiting clamping plate assembly further includes two sets of push blocks slidably disposed inside the limiting frame, with a retractable spring connecting the two sets of push blocks to the inside of the limiting frame, and the two sets of push blocks clamping between the horizontal ends of the stirring frame.

[0017] In some embodiments, both the vibration damping mechanism and the paddle assembly are made of 304 stainless steel.

[0018] In some embodiments, the base platform has a concave structure, and the inner wall of the top opening of the base platform is fixedly connected to the lower outer wall of the feed hopper by a base connecting plate.

[0019] Compared with existing technologies, the significant advantages of this invention are:

[0020] Firstly, this invention incorporates an anti-vibration compaction mechanism and multiple sets of paddle assemblies. One end of the agitator extends into the feed hopper, and the paddle assemblies are slidably mounted on the agitator with their horizontal length decreasing progressively from top to bottom. Their positions can be flexibly adjusted in conjunction with a moving ring and a second fixing bolt. When the agitator vibrates under the drive of the vibration source mechanism, the agitator blades adapt to the feed hopper's wider upper and narrower lower shape, comprehensively agitating materials at different heights. This fundamentally prevents material compaction and stratification due to vibration—the upper paddles cover the wider upper area of ​​the feed hopper, while the lower paddles penetrate into the narrower lower area, ensuring uniform mixing of materials before packaging.

[0021] Secondly, this utility model achieves a dual function through the limiting clamp assembly. The limiting frame is fixed to the top of the feed hopper by the clamp and the first fixing bolt. The gap between the limiting frame and the top of the feed hopper restricts the stirring frame to only vibrate horizontally, preventing collision with the inner wall of the feed hopper, which would cause structural wear and contaminant material. At the same time, the push block and spring clamp the horizontal end of the stirring frame. The spring force can buffer and transmit vibration, making the vibration of the stirring frame more uniform and further improving the stirring effect of the stirring blade on the material.

[0022] Thirdly, all connection structures of this utility model adopt threaded connections (such as the second fixing bolt fixing the paddle assembly, and the third fixing bolt connecting the motor and the agitator), and the limiting clamp assembly is a detachable design. This structure allows the device to be quickly aligned and fixed during installation, and allows for convenient disassembly of each component for cleaning or replacement during later maintenance, greatly reducing the difficulty of operation.

[0023] This invention solves the problems of existing granule packaging machines, which are prone to compaction and stratification during vibration packaging due to large differences in material particle size, resulting in unstable filling volume, and the inconvenience of vibration damping devices colliding with the hopper and requiring disassembly and maintenance. Attached Figure Description

[0024] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a three-dimensional structural diagram of the anti-vibration device for a granule packaging machine provided in one embodiment of the present invention;

[0026] Figure 2 This is a top view of the anti-vibration device for a granule packaging machine provided in one embodiment of the present invention;

[0027] Figure 3 This is a partial installation schematic diagram of the limiting clamping plate assembly on the feed hopper provided in one embodiment of the present invention;

[0028] Figure 4 This is a partial schematic diagram of multiple sets of paddle assemblies installed on a stirring frame in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the connecting rod and stirring frame structure provided in one embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Base platform; 101. Base connecting plate; 200. Feed hopper; 400. Vibrating device; 401. Transmission rod; 402. Rotating shaft; 500. Stirring frame; 501. Connecting short rod; 600. Limiting frame; 601. Clamping plate; 602. First fixing bolt; 603. Spring; 604. Push block; 700. Moving ring; 701. Stirring blade; 702. Second fixing bolt; 800. Connecting component; 801. Third fixing bolt. Detailed Implementation

[0032] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0033] This utility model provides an improved anti-vibration compaction device for a granule packaging machine. The technical solution of this utility model is as follows:

[0034] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.

[0035] like Figure 1 - Figure 5 As shown, a vibration damping device for a granule packaging machine includes a base platform 100, a feed hopper 200, a vibration drive source mechanism, a vibration damping mechanism, a limit clamping plate assembly, multiple sets of paddle assemblies, a connecting component 800, and a base connecting plate 101.

[0036] The base platform 100 has a concave structure and serves as the supporting foundation for the entire device, used to install and fix the vibration drive source mechanism and the feed hopper 200. The feed hopper 200 is used to contain the particulate material to be processed. The vibration drive source mechanism provides vibration power to the device. The anti-vibration compaction mechanism and the paddle assembly perform anti-vibration compaction treatment on the material in the feed hopper 200 under the action of vibration power. The limiting clamping plate assembly constrains and assists the movement of the anti-vibration compaction mechanism. The connecting component 800 and the base connecting plate 101 are used to connect different components to ensure the stability of the overall structure.

[0037] like Figure 1 - Figure 5 As shown, in one embodiment, the vibration damping mechanism includes a frame-shaped stirring frame 500. One end of the stirring frame 500 extends downward from the upper opening of the feed hopper 200 into its interior, and the other end is connected to a connecting short rod 501. Multiple sets of paddle assemblies are slidably disposed on the rod of the stirring frame 500 located inside the feed hopper 200, and their horizontal length decreases layer by layer from top to bottom. The paddle assembly includes a movable ring 700 sleeved on the stirring frame 500 and two sets of stirring blades 701 symmetrically fixed to the outside of the movable ring 700. A second fixing bolt 702 is threadedly connected to the outside of the movable ring 700.

[0038] The agitator 500 extends into the feed hopper 200, providing a mounting base for the agitator blade assembly. The agitator blade assembly is slidably arranged with its horizontal length decreasing layer by layer, adapting to the common shape of the feed hopper 200, which is wider at the top and narrower at the bottom, ensuring that materials of different heights are contacted by the agitator blades 701. When the agitator 500 vibrates, the agitator blades 701 vibrate synchronously, creating multi-dimensional agitation of the material—the upper agitator blade assembly covers the wider upper area of ​​the feed hopper 200, while the lower agitator blade assembly penetrates into the narrower lower area, preventing material from accumulating and compacting locally due to vibration. Simultaneously, the moving ring 700 can be adjusted and fixed via the second fixing bolt 702, flexibly adapting to different material layers of varying heights according to the material quantity, further improving agitation uniformity and fundamentally solving the problems of material compaction and stratification.

[0039] like Figure 1 and Figure 2 As shown, in one embodiment, the vibration drive source mechanism includes a vibration device 400 and a rotating shaft 402 connecting its two sides. The rotating shaft 402 is movably connected to the inner wall of the base platform 100. The output shaft of the vibration device 400 is connected to a transmission rod 401. The transmission rod 401 is connected to the outer wall of the feed hopper 200. The vibration device 400 is prior art, so it will not be described in detail in this specification. A vibration motor or a reciprocating motion drive device can be used to achieve the reciprocating vibration effect as alternatives.

[0040] The vibration is generated by the vibrating device 400, and the rotating shaft 402 ensures stable installation within the base platform 100 without affecting the vibration output. The transmission rod 401 transmits the vibration to the feed hopper 200, causing the material itself to vibrate (simulating the vibration environment of the original packaging machine). Simultaneously, the vibration is transmitted to the stirring frame 500 through the connecting short rod 501, allowing the anti-vibration compaction mechanism to obtain power synchronized with the material vibration. This "unified vibration source" design ensures that the vibration frequency of the stirring frame 500 matches the vibration frequency of the material, avoiding stirring failure due to frequency differences (such as stirring too slowly to break up compaction, or stirring too fast to cause material splashing).

[0041] like Figure 5 As shown, in one embodiment, the other end of the stirring frame 500 is connected to a connecting rod 501. The connecting rod 501 and the vibration drive source mechanism are threadedly connected by a fixing component, which includes a connecting part 800 and a third fixing bolt 801. The connecting rod 501 and the vibration drive source mechanism are threadedly connected by the connecting part 800 and the third fixing bolt 801. The base platform 100 and the feed hopper 200 are fixed by a base connecting plate 101.

[0042] By attaching the connecting component 800 to the outer shell of the vibrating device 400 and then locking it with the third fixing bolt 801, the connecting short rod 501 can be firmly connected to the vibrating device 400, ensuring that the vibration power is transmitted to the stirring frame 500 without loss; the base connecting plate 101 fixes the base platform 100 and the feed hopper 200, preventing the feed hopper 200 from shifting during vibration, ensuring the overall structural stability, and allowing the vibration energy to be concentrated on the material and the anti-vibration compaction mechanism.

[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the limiting clamp assembly includes a frame-type limiting frame 600, clamps 601 on both sides of the bottom, and a first fixing bolt 602 on the outer side of the clamps 601; two sets of push blocks 604 are slidably arranged inside the limiting frame 600, and a spring 603 is connected between the push blocks 604 and the limiting frame 600, and the push blocks 604 clamp the horizontal end of the stirring frame 500.

[0044] The limiting frame 600 forms a stable limiting base by clamping the top edge of the feed hopper 200 with clamp 601 and fixing it with the first fixing bolt 602. The horizontal end of the agitator 500 passes through the gap between the limiting frame 600 and the top of the feed hopper 200. This gap restricts the agitator 500 to vibrate only in the horizontal direction, preventing it from swinging up and down and colliding with the inner wall of the feed hopper 200 (preventing material contamination and structural wear). At the same time, the push block 604 is always in contact with the agitator 500 under the elastic force of the spring 603. When the agitator 500 vibrates, the spring 603 absorbs and feeds back the vibration energy through extension and contraction, making the horizontal vibration of the agitator 500 more uniform (reducing vibration dead zones), and indirectly improving the agitation effect of the stirring blade 701 on the material.

[0045] In one embodiment, both the vibration damping mechanism and the paddle assembly are made of 304 stainless steel.

[0046] 304 stainless steel possesses excellent chemical stability and will not react chemically with particulate materials (such as potassium chloride and sucralose), thus preventing the introduction of impurities and contamination. Furthermore, its smooth surface minimizes material residue buildup, reducing agitation problems caused by clumping. In addition, its high strength allows it to withstand long-term vibration and material friction, extending the equipment's lifespan.

[0047] The agitator assembly slides and is fixed via a moving ring 700 and a second fixing bolt 702. The spacing between adjacent agitator assemblies can be adjusted according to the particle size of the material—increasing the spacing to prevent jamming for larger particles and decreasing the spacing to increase agitation density for smaller particles. This adjustability allows the device to adapt to various material types.

[0048] All connecting structures (first fixing bolt 602, second fixing bolt 702, and third fixing bolt 801) are threaded connections, and the components can be separated simply by loosening the bolts during disassembly. For example, when cleaning the feed hopper 200, the limit clamp assembly and the paddle assembly can be removed to directly clean the inner wall of the feed hopper and the agitator frame without disassembling the entire device.

[0049] Working principle and usage process of this utility model:

[0050] (I) Working Principle

[0051] After the vibrating device 400 is started, it vibrates stably within the base platform 100 via the rotating shaft 402. The vibration energy is transmitted to the feed hopper 200 via the transmission rod 401, causing the material inside to vibrate with the feed hopper; on the other hand, it is transmitted to the stirring frame 500 via the connecting short rod 501 and connecting component 800, driving the agitator assembly to vibrate synchronously. The stirring blades 701 of the agitator assembly agitate the material during vibration. Because the horizontal length decreases layer by layer, it adapts to the space of the feed hopper and avoids material compaction and stratification. The limiting clamping plate assembly constrains the horizontal vibration of the agitator frame 500 through the gap, while the spring 603 and push block 604 enhance the uniformity of vibration.

[0052] (II) Usage Process

[0053] 1. Device assembly: Install the vibrating device 400 inside the base platform 100 via the rotating shaft 402, and fix the feed hopper 200 to the top opening of the base platform 100 using the base connecting plate 101.

[0054] 2. Installation of the anti-vibration mechanism: Insert one end of the agitator 500 into the feed hopper 200, and connect the other end to the vibration device 400 through the connecting short rod 501, the connecting component 800 and the third fixing bolt 801; slide the moving ring 700 according to the depth of the feed hopper, adjust the position of the paddle assembly and then lock it with the second fixing bolt 702.

[0055] 3. Installation of the limiting component: The limiting frame 600 is clamped to the top of the feed hopper 200 by the clamping plate 601 and fixed with the first fixing bolt 602; the horizontal end of the stirring frame 500 passes through the gap between the limiting frame and the top of the feed hopper, and the position of the push block 604 is adjusted to clamp the stirring frame, ensuring that the spring 603 is in a slightly compressed state.

[0056] 4. Material handling: Add the material to be processed into the feed hopper 200, start the vibration device 400, and the device starts working; observe the agitation state of the material, and the effect can be optimized by adjusting the spacing of the paddle assembly; the processed material naturally falls into the receiving mechanism and fills the film in the forming device.

[0057] 5. Post-operation maintenance: After the work is completed, turn off the motor, unscrew all fixing bolts, remove the paddle assembly and limit assembly, clean the feed hopper, stirring blades and agitator frame, and reassemble according to the original steps for later use.

[0058] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An anti-vibration device for a granule packaging machine, comprising a base table (100) and a feed hopper (200), characterized in that: The base platform (100) is internally provided with a vibration drive source mechanism connected to the outer wall of the feed hopper (200), and also includes: The vibration damping mechanism is located on both the inner and outer sides of the feed hopper (200); A limiting clamping plate assembly, which is detachably disposed at the top opening of the feed hopper (200); The vibration damping mechanism includes a frame-shaped agitator (500), one end of which extends downward from the upper opening of the feed hopper (200) into its interior, and the other end of which is connected to a connecting rod (501). The connecting rod (501) and the vibration drive source mechanism are connected by a threaded connection through a fixed component. Multiple sets of paddle assemblies are disposed inside the feed hopper (200), and each paddle assembly slides on the agitator (500). The paddle assemblies are located inside the feed hopper (200), and the horizontal length between the multiple sets of paddle assemblies decreases from top to bottom.

2. A shock resistant unit for a granule packing machine according to claim 1, characterized in that: The paddle assembly includes a movable ring (700) sleeved on the agitator (500) and two sets of agitator blades (701) symmetrically fixed to the outside of the movable ring (700). Each movable ring (700) is threaded with a second fixing bolt (702) on the outside, and the corresponding movable ring (700) is threaded to the agitator (500) by the second fixing bolt (702).

3. A vibration isolation device for a granule packaging machine according to claim 1, characterized in that: The vibration drive source mechanism includes a vibration device (400) and rotating shafts (402) connected to both sides of the vibration device (400). The two rotating shafts (402) are movably connected to the inner wall of the base (100). The output shaft of the vibration device (400) is connected to a transmission rod (401).

4. A shock resistant unit for a granule packaging machine according to claim 1, characterized in that: The fixing component includes a connecting part (800) connected to the short rod (501). The connecting part (800) fits against the outer surface of the vibrating device (400), and multiple sets of third fixing bolts (801) are threaded onto the connecting part (800). The fixing component is connected to the corresponding outer shell of the vibrating device (400) through the third fixing bolts (801).

5. A shock resistant unit for a granule packaging machine according to claim 1, characterized in that: The limiting clamp assembly includes a frame-shaped limiting frame (600). Two sets of clamps (601) are provided on both sides of the bottom of the limiting frame (600). The limiting frame (600) is clamped to the top edge of the feed hopper (200) through the clamps (601). The outer side of the clamps (601) is threaded with a first fixing bolt (602) that is connected to the corresponding wall surface of the feed hopper (200). The top horizontal end of the agitator (500) passes through the gap between the limiting frame (600) and the top of the feed hopper (200).

6. A vibration isolation device for a granule packaging machine according to claim 5, characterized in that: The limiting clamping plate assembly also includes two sets of push blocks (604) slidably disposed inside the limiting frame (600). A retractable spring (603) is connected between the two sets of push blocks (604) and the inside of the limiting frame (600). The two sets of push blocks (604) are clamped between the horizontal ends of the stirring frame (500).

7. A vibration isolation device for a granule packaging machine according to claim 1, characterized in that: Both the vibration damping mechanism and the lever assembly are made of 304 stainless steel.

8. The anti-vibration device for a granule packaging machine according to claim 1, characterized in that: The base platform (100) has a concave structure, and the inner wall of the top opening of the base platform (100) is fixedly connected to the lower outer wall of the feed hopper (200) by a base connecting plate (101).

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