A weighing feeder for a packaging machine

Abstract

The utility model discloses a kind of packaging machine weighing feeding devices, including storage cylinder, the upper surface of the storage cylinder is fixedly installed with support top plate, the upper surface of the support top plate is fixedly installed with driving motor, the inside of the storage cylinder is provided with mixing component, the outer surface of the bottom end of the storage cylinder is fixedly communicated with upper electric valve, the lower of the storage cylinder is provided with weighing hopper, the bottom of the weighing hopper is fixedly communicated with feeding discharge pipe, the outer surface of the feeding discharge pipe is fixedly communicated with lower electric valve, the upper surface of the support top plate is provided with injection hole, the outside of the weighing hopper is provided with annular support seat. The utility model can guarantee mixing effect through the collaborative operation of main and auxiliary stirring rod, can also continuously break up material agglomeration, facilitate continuous weighing and feeding after mixing, avoid the production interruption problem caused by blockage of conveying pipeline due to agglomeration in traditional feeding device, reduce equipment maintenance frequency and downtime loss.

Description

Technical Field

[0001] This application relates to the field of packaging weighing technology, and in particular to a weighing and feeding device for a packaging machine. Background Technology

[0002] Packaging feeding is a process of the weighing and feeding device of a packaging machine. It refers to the entire process of conveying the material to be packaged into the packaging container according to the preset weight standard. It covers key links such as material conveying, temporary storage, and metering control. It is the core link to ensure packaging accuracy and efficiency. For powdery materials, packaging feeding needs to take into account the material's flowability, dust prevention, and metering accuracy. Usually, the material needs to be guided from the silo to the weighing mechanism through conveying equipment. After weight detection, the material is quantitatively fed. It is widely used in large-scale production scenarios in industries such as chemical, food, and building materials.

[0003] Currently, most powder material packaging and feeding equipment is designed for single materials. If multiple powder materials need to be mixed and packaged, the materials must first be mixed using independent mixing equipment, and then the mixed materials are transferred to the packaging machine for weighing and feeding. As a result, problems such as layering and residue are likely to occur during the material transfer process. In addition, the current weighing and feeding process requires conveying equipment and conveying pipelines to transport the powder. However, powder can easily clump together due to moisture, causing blockages in the feeding and conveying equipment, which in turn affects the weighing and feeding operation. Therefore, to solve the above problems, we provide a weighing and feeding device for packaging machines. Utility Model Content

[0004] The purpose of this invention is to provide a weighing and feeding device for a packaging machine to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A weighing and feeding device for a packaging machine includes a storage cylinder, a supporting top plate fixedly installed on the upper surface of the storage cylinder, a drive motor fixedly installed on the upper surface of the supporting top plate, a mixing component disposed inside the storage cylinder, an upper electric valve fixedly connected to the outer surface of the bottom end of the storage cylinder, a weighing hopper disposed below the storage cylinder, a feeding discharge pipe fixedly connected to the bottom surface of the weighing hopper, a lower electric valve fixedly connected to the outer surface of the feeding discharge pipe, an injection hole opened on the upper surface of the supporting top plate, an annular support base disposed outside the weighing hopper, and a ring-shaped arrangement of weighing sensors fixedly installed on the inner bottom wall of the annular support base, with the detection end of each weighing sensor contacting one side of the weighing hopper.

[0007] Preferably, the mixing assembly includes a main stirring rod fixedly mounted at the output end of a drive motor, a plurality of main stirring blades fixedly connected to the outer surface of the main stirring rod, a spiral blade fixedly connected to the outer surface of the bottom end of the main stirring rod, a connecting plate fixedly connected to the outer surface of the main stirring rod, a bearing ring fixedly embedded in the bottom surface of the connecting plate, an auxiliary stirring rod fixedly connected to the inner ring of the bearing ring, and an auxiliary stirring blade fixedly connected to the outer surface of the auxiliary stirring rod.

[0008] Preferably, a transmission gear is fixedly connected to the top end of the auxiliary stirring rod, and a fixed gear ring is fixedly installed on the bottom surface of the supporting top plate, with one end of the transmission gear meshing with the inner ring of the fixed gear ring.

[0009] Preferably, an upper annular plate is fixedly connected to the outer surface of the storage cylinder, a lower annular plate is fixedly installed on the bottom surface of the upper annular plate, and the ring of the lower annular plate is fixedly connected to the outer surface of the annular support seat.

[0010] Preferably, the outer surface of the storage cylinder is fixedly connected with a plurality of mounting supports, and each mounting support has a mounting hole on its upper surface.

[0011] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0012] 1. This packaging machine's weighing and feeding device utilizes a main stirring rod inside the storage cylinder, driven by a motor. The main stirring blades on its surface radially and omnidirectionally stir various powdery materials to be mixed within the storage cylinder. Simultaneously, the spiral blades at the bottom rotate, pushing and tumbling the material deposited at the bottom of the storage cylinder upwards, preventing insufficient mixing due to prolonged stagnation. Simultaneously, the main stirring rod, via a connecting plate, drives an auxiliary stirring rod to revolve around the main stirring rod. The transmission gear at the top of the auxiliary stirring rod meshes with a fixed gear ring, causing the auxiliary stirring rod to rotate autonomously. Its surface auxiliary stirring blades further refine and stir the material, ensuring consistent composition after mixing. This prevents product quality issues caused by imbalanced material ratios during subsequent packaging. It is suitable for the mixing needs of multi-component powdery materials before packaging and weighing in various industries such as food, chemicals, and building materials, facilitating continuous weighing and feeding after mixing.

[0013] 2. The weighing and feeding device of this packaging machine allows the mixed material to fall directly into the weighing hopper through the opening of the upper electric valve. This facilitates the weighing and detection of the material through the ring support base and the weighing sensor. Furthermore, the coordinated operation of the main and auxiliary stirring rods ensures the mixing effect and continuously breaks up material clumps, avoiding the production interruption caused by clump blockage in the conveying pipeline in traditional feeding devices, thus reducing equipment maintenance frequency and downtime losses. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 See: A three-dimensional structural diagram of the weighing and feeding device of the packaging machine of this utility model from the front view;

[0016] Figure 2 See: A frontal sectional view of the weighing and feeding device of the packaging machine of this utility model;

[0017] Figure 3 See below: A three-dimensional structural diagram of the mixing component in the weighing and feeding device of the packaging machine of this utility model, viewed from below;

[0018] Figure 4 The diagram shows a top-view three-dimensional structure of the weighing hopper in the weighing and feeding device of the packaging machine of this utility model.

[0019] In the diagram: 1. Storage cylinder; 2. Support top plate; 3. Drive motor; 4. Mixing component; 41. Main stirring rod; 42. Fixed gear ring; 43. Transmission gear; 44. Connecting plate; 45. Bearing ring; 46. Auxiliary stirring rod; 47. Auxiliary stirring blade; 48. Main stirring blade; 49. Spiral blade; 5. Injection hole; 6. Annular support seat; 7. Mounting support; 8. Weighing sensor; 9. Weighing hopper; 10. Feed discharge pipe; 11. Lower electric valve; 12. Upper electric valve; 13. Lower annular plate; 14. Upper annular plate; 15. Mounting hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4In this utility model, a weighing and feeding device for a packaging machine includes a storage cylinder 1, a supporting top plate 2 fixedly installed on the upper surface of the storage cylinder 1, a drive motor 3 fixedly installed on the upper surface of the supporting top plate 2, a mixing component 4 disposed inside the storage cylinder 1, an upper electric valve 12 fixedly connected to the outer surface of the bottom end of the storage cylinder 1, a weighing hopper 9 disposed below the storage cylinder 1, a feeding discharge pipe 10 fixedly connected to the bottom surface of the weighing hopper 9, a lower electric valve 11 fixedly connected to the outer surface of the feeding discharge pipe 10, a material injection hole 5 opened on the upper surface of the supporting top plate 2, and an annular support seat 6 disposed outside the weighing hopper 9. A ring-shaped arrangement of weighing sensors 8 is fixedly installed on the inner bottom wall of the ring support 6. The detection end of each weighing sensor 8 is in contact with one side of the weighing hopper 9. The filling hole 5 is used to inject the material to be mixed. After mixing, the upper electric valve 12 is opened and the material falls into the weighing hopper 9. The ring-shaped arrangement of weighing sensors 8 on the inner bottom wall of the ring support 6 detects the weight of the material in real time. When the preset value is reached, the upper electric valve 12 is automatically closed to complete accurate measurement. This design avoids the error of manual measurement. Through the synchronous detection of the weighing sensors 8 and the linkage with the valve, the consistency of the weight of each batch of material is ensured and the measurement accuracy is stable and reliable.

[0023] In this embodiment, the mixing component 4 includes a main stirring rod 41 fixedly mounted at the output end of the drive motor 3. Multiple main stirring blades 48 are fixedly connected to the outer surface of the main stirring rod 41. A spiral blade 49 is fixedly connected to the outer surface of the bottom end of the main stirring rod 41. A connecting plate 44 is fixedly connected to the outer surface of the main stirring rod 41. A bearing ring 45 is fixedly embedded in the bottom surface of the connecting plate 44. An auxiliary stirring rod 46 is fixedly connected to the inner ring of the bearing ring 45. An auxiliary stirring blade 47 is fixedly connected to the outer surface of the auxiliary stirring rod 46. A transmission gear 43 is fixedly connected to the top end of the auxiliary stirring rod 46. A fixed gear ring 42 is fixedly mounted on the bottom surface of the supporting top plate 2. One end of 43 meshes with the inner ring of the fixed gear ring 42. After the drive motor 3 starts, it drives the main stirring rod 41 to rotate. Multiple main stirring blades 48 on the surface of the main stirring rod 41 radially stir the material in the storage cylinder 1. The spiral blades 49 at the bottom push the bottom material to tumble upwards, realizing up-and-down circulation. The main stirring rod 41 drives the auxiliary stirring rod 46 to revolve through the connecting plate 44. The transmission gear 43 at the top of the auxiliary stirring rod 46 meshes with the fixed gear ring 42, causing the auxiliary stirring rod 46 to rotate. The auxiliary stirring blades 47 on its surface perform secondary fine stirring. The bearing ring 45 ensures that the auxiliary stirring rod 46 operates flexibly, ensuring that various materials are mixed evenly and that clumps are broken up.

[0024] In this embodiment, an upper annular plate 14 is fixedly connected to the outer surface of the storage cylinder 1, and a lower annular plate 13 is fixedly installed on the bottom surface of the upper annular plate 14. The ring of the lower annular plate 13 is fixedly connected to the outer surface of the annular support 6. Multiple mounting supports 7 are fixedly connected to the outer surface of the storage cylinder 1. Each mounting support 7 has a mounting hole 15 on its upper surface. Through the cooperation of the upper annular plate 14 and the lower annular plate 13, a stable connection with the annular support 6 can be achieved. In addition, multiple mounting supports 7 can quickly fix the device to the production line through the mounting holes 15 to adapt to different installation scenarios. After metering is completed, the lower electric valve 11 is opened, and the material is conveyed through the feeding discharge pipe 10. The entire feeding process is automated and, in conjunction with the mixing function, achieves continuous operation and improves production efficiency.

[0025] The working principle of this utility model is as follows: First, various powdery materials to be mixed are injected into the storage cylinder 1 through the injection hole 5. After starting the drive motor 3, the main stirring rod 41 of the mixing component 4 is driven to rotate. Multiple main stirring blades 48 on the surface of the main stirring rod 41 perform radial stirring of the materials, while the spiral blades 49 at the bottom push the bottom materials to tumble upwards, realizing the circulation mixing of the upper and lower materials. At the same time, the main stirring rod 41 drives the auxiliary stirring rod 46 to revolve with the main stirring rod 41 through the connecting plate 44. The transmission gear 43 at the top of the auxiliary stirring rod 46 meshes with the fixed gear ring 42, causing the auxiliary stirring rod 46 to rotate and perform secondary fine stirring of the materials through the auxiliary stirring blades 47, ensuring that the various powdery materials are mixed evenly.

[0026] After mixing, the upper electric valve 12 at the bottom of the storage cylinder 1 is opened, and the mixed powdery material falls directly into the weighing hopper 9 below. The ring-shaped weighing sensors 8 on the ring support 6 detect the weight of the material in real time. When the preset weight is reached, the upper electric valve 12 is closed to complete the metering. Then, the lower electric valve 11 on the surface of the feed discharge pipe 10 is opened, and the material is fed through the discharge pipe. Throughout the process, the coordinated stirring of the main stirring rod 41 and the auxiliary stirring rod 46 not only achieves mixing but also breaks up the damp and clump-forming powdery material, effectively avoiding the blockage problem caused by clumping in traditional conveying pipelines and ensuring continuous and stable weighing and feeding.

[0027] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail. In addition, the power supply module, circuit, electronic components and control module involved in this utility model are all existing technologies and can be fully implemented by those skilled in the art. There is no need to elaborate. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A weighing and feeding device for a packaging machine, comprising a storage cylinder (1), characterized in that: A support plate (2) is fixedly installed on the upper surface of the storage cylinder (1), and a drive motor (3) is fixedly installed on the upper surface of the support plate (2). A mixing component (4) is provided inside the storage cylinder (1). An upper electric valve (12) is fixedly connected to the outer surface of the bottom end of the storage cylinder (1). A weighing hopper (9) is provided below the storage cylinder (1). A feeding discharge pipe (10) is fixedly connected to the bottom surface of the weighing hopper (9). A lower electric valve (11) is fixedly connected to the outer surface of the feeding discharge pipe (10). An injection hole (5) is opened on the upper surface of the support plate (2). An annular support seat (6) is provided outside the weighing hopper (9). A ring-shaped weighing sensor (8) is fixedly installed on the inner bottom wall of the annular support seat (6). The detection end of each weighing sensor (8) is in contact with one side of the weighing hopper (9).

2. The weighing and feeding device for a packaging machine according to claim 1, characterized in that: The mixing component (4) includes a main stirring rod (41) fixedly installed at the output end of a drive motor (3), a plurality of main stirring blades (48) are fixedly connected to the outer surface of the main stirring rod (41), and a spiral blade (49) is fixedly connected to the outer surface of the bottom end of the main stirring rod (41).

3. The weighing and feeding device for a packaging machine according to claim 2, characterized in that: A connecting plate (44) is fixedly connected to the outer surface of the main stirring rod (41), a bearing ring (45) is fixedly embedded on the bottom surface of the connecting plate (44), an auxiliary stirring rod (46) is fixedly connected to the inner ring of the bearing ring (45), and an auxiliary stirring blade (47) is fixedly connected to the outer surface of the auxiliary stirring rod (46).

4. The weighing and feeding device for a packaging machine according to claim 3, characterized in that: The top end of the auxiliary stirring rod (46) is fixedly connected to a transmission gear (43), and a fixed toothed ring (42) is fixedly installed on the bottom surface of the support top plate (2). One end of the transmission gear (43) meshes with the inner ring of the fixed toothed ring (42).

5. The weighing and feeding device for a packaging machine according to claim 1, characterized in that: The outer surface of the storage cylinder (1) is fixedly connected to an upper annular plate (14), and the bottom surface of the upper annular plate (14) is fixedly installed with a lower annular plate (13). The ring of the lower annular plate (13) is fixedly connected to the outer surface of the annular support seat (6).

6. The weighing and feeding device for a packaging machine according to claim 1, characterized in that: The outer surface of the storage cylinder (1) is fixedly connected with a plurality of mounting supports (7), and each mounting support (7) has a mounting hole (15) on its upper surface.

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