Sealing device for bagged powder

Abstract

The utility model is applicable to the technical field of sealing devices, and provides a sealing device for bagged powder, which comprises a base, and two exhaust mechanisms are symmetrically mounted above the base; the bottom end of elastic cloth of the exhaust mechanism is connected with the base; the top end of the elastic cloth is connected with the inner side of the extrusion rod; the outer side face of the extrusion rod is fixedly connected with an electric telescopic rod. The electric telescopic rod is fixedly connected with the base through a support. The two ends of the extrusion rod are rotationally connected with swing rods correspondingly. An adjusting rod is mounted between the two swing rods; torsion springs are installed at the connecting positions of the swing rods and the extrusion rods. The adjusting rod is positioned below the elastic cloth; in this way, heat sealing can be conducted on bagged powder, air in a packaging bag can be exhausted through the exhaust mechanism, and the situation that after the packaging bag is sealed, a large amount of air is contained in the packaging bag, and the storage or transportation space is occupied is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing device technical field, especially a sealing device for bagged powder. BACKGROUND

[0002] As a commonly used cleaning product, most washing powder is packaged in plastic packaging bags, and the washing powder packaged in plastic packaging bags is usually sealed by a heat sealing knife during packaging,

[0003] After the washing powder is put into the plastic packaging bag, the unsealed plastic packaging bag is directly put into the heat sealing part of the heat sealing machine for heating and sealing. This direct heating and sealing method can easily cause the plastic packaging bag to contain a large amount of air, which can increase the overall volume of the washing powder packaging bag and easily cause waste of storage or transportation space and increase storage or transportation costs. The existing method of extracting air to discharge excess air in the packaging bag has a high production cost and is prone to errors that can cause the powder to be extracted from the packaging bag. SUMMARY

[0004] In view of the above defects, the utility model aims to provide a sealing device for bagged powder, which can heat seal the bagged powder, the setting of the air exhaust mechanism can exhaust the air in the packaging bag, avoid the packaging bag containing a large amount of air after sealing, and occupy the storage or transportation space; the setting of the elastic cloth can be elastically deformed to facilitate contact with the outer surface of the packaging bag and extrude the air in the packaging bag; the setting of the adjusting rod can make the two elastic cloths more closely contact, which is convenient for extruding the air in the idle space above the packaging bag.

[0005] In order to achieve the above purpose, the utility model provides a sealing device for bagged powder, which comprises a base, two air exhaust mechanisms are symmetrically installed above the base;

[0006] The air exhaust mechanism comprises an elastic cloth, a pressing rod, an electric telescopic rod, a swing rod, an adjusting rod, a bracket and a torsional spring, the bottom end of the elastic cloth of the air exhaust mechanism is connected to the base; the top end of the elastic cloth is connected to the inner side of the pressing rod; the outer side of the pressing rod is fixedly connected to the electric telescopic rod; the electric telescopic rod is fixedly connected to the base through the bracket; the two ends of the pressing rod are respectively rotatably connected to the swing rod; the adjusting rod is installed between the two swing rods; the swing rod and the pressing rod are both provided with a torsional spring at the connection position; and the adjusting rod is located below the elastic cloth.

[0007] A heat sealing knife is installed above the pressing rod.

[0008] According to the sealing device for bagged powder of the utility model, a plurality of adjusting holes are arranged above the swing rod; and the adjusting rod is fixedly connected to the swing rod through an adjusting bolt.

[0009] According to the sealing device for bagged powder of the present invention, a rotating cylinder is sleeved outside the adjusting rod; the rotating cylinder is rotatably connected to the adjusting rod.

[0010] According to the sealing device for bagged powder of the present invention, the bottom end of the elastic cloth is fixedly connected to the outside of the rotating roller; the two ends of the rotating roller are respectively rotatably connected to the base; the base is provided with a limiting device to restrict the rotation of the rotating roller.

[0011] According to the present invention, a sealing device for bagged powder includes a limiting threaded hole, a bolt through hole, and a limiting bolt. The limiting threaded hole of the limiting device is disposed on the base; the rotating roller is provided with a bolt through hole; and the limiting threaded hole is provided with a matching limiting bolt.

[0012] According to the sealing device for bagged powder of the present invention, the inner side of the extrusion rod is provided with an exhaust groove.

[0013] According to the sealing device for bagged powder of the present invention, an elastic rubber pad is adhered to the inner side of the extrusion rod.

[0014] This utility model provides a sealing device for bagged powder, including a base. Two venting mechanisms are symmetrically installed on the top of the base. These mechanisms facilitate the removal of excess air from the packaging bag, reducing wasted storage or transportation space for the bagged powder. The bottom end of the elastic fabric of each venting mechanism is connected to the base. The elastic fabric is more adaptable to the irregular shape of the powder inside the packaging bag, facilitating the squeezing of the bag to expel air. The top end of the elastic fabric is connected to the inner side of a squeezing rod. The squeezing rods work together to squeeze the packaging bag, ensuring the tops of the bags fit together for heat sealing. An electric telescopic rod is fixedly connected to the outer side of the squeezing rod. The electric telescopic rod is fixedly connected to the base via a bracket, allowing the squeezing rods to move closer or further apart. Each end of the squeezing rod is rotatably connected to... The device features two swing arms, with an adjusting rod installed between them. This design prevents the adjusting rod from being fixedly connected to the extrusion rod, thus ensuring the extrusion rods can approach each other even when there is powder between the adjusting rods. Torsion springs are installed at the connection points between the swing arms and the extrusion rods. These springs prevent irregular swinging and allow the swing arms to tilt when not under external force. This allows the elastic fabric at the adjusting rod position to expel the packaging bag before the extrusion rod, ensuring that air is expelled synchronously when the extrusion rods approach each other. This prevents the packaging bag from being unable to expel air after being compressed by two extrusion rods. The adjusting rod is located below the elastic fabric, facilitating deformation of the elastic fabric to contact the packaging bag. Heat-sealing knives are installed above each extrusion rod, and the two knives work together to heat-seal the packaging bag. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of Part A;

[0017] Figure 3 yes Figure 1 A schematic diagram of the structure of part B;

[0018] Figure 4 This is the left view of this utility model;

[0019] Figure 5 This is a schematic diagram of the intermediate state structure of this utility model during operation;

[0020] Figure 6 This is a schematic diagram of the heat-sealed structure of this utility model during operation;

[0021] In the diagram: 1-base, 2-bracket, 3-extrusion rod, 4-electric telescopic rod, 5-heat sealing knife, 6-venting groove, 7-rotating cylinder, 8-rotating roller, 9-elastic cloth, 10-elastic rubber pad, 11-torsion spring, 12-swing rod, 13-adjusting hole, 14-adjusting rod, 15-adjusting bolt, 16-limiting bolt, 17-packaging bag. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0023] See Figure 1 , Figure 4 , Figure 5 , Figure 6This utility model provides a sealing device for bagged powder. The sealing device includes a base 1, with two symmetrically mounted venting mechanisms on top of the base 1. These two venting mechanisms simultaneously compress both sides of the packaging bag 17, ensuring a tight seal and expelling excess air from the bag. Each venting mechanism includes an elastic cloth 9, a compression rod 3, an electric telescopic rod 4, a swing rod 12, an adjusting rod 14, a bracket 2, and a torsion spring 11. The bottom end of the elastic cloth 9 is connected to the base 1, and the top end is connected to the inner side of the compression rod 3. This connection allows the top ends of the two elastic cloths 9 to approach each other as closely as possible, compressing and expelling air. The parallel alignment of the top and bottom ends of the elastic cloths 9 ensures they lie on a single plane when not subjected to external force. The electric telescopic rod 4 is fixedly connected to the outer side of the compression rod 3. The electric telescopic rod 4 is fixedly connected to the base 1 via the bracket 2. The electric telescopic rod 4 drives the compression rod 3 to move horizontally, bringing the two compression rods 3 closer together.

[0024] The extrusion rod 3 is rotatably connected to two swing rods 12 at both ends. An adjusting rod 14 is installed between the two swing rods 12. Torsion springs 11 are installed at the connection points between the swing rods 12 and the extrusion rod 3. The swing rods 12 are designed to rotate, thus avoiding a fixed connection between the adjusting rod 14 and the extrusion rod 3. This helps to prevent the movement of the extrusion rod 3 from being restricted when there is powder at its position, and prevents the two extrusion rods 3 from being unable to move to the closest position. When the two extrusion rods 3 move to the closest position, the two adjusting rods 14 are also at their closest point, so that there is only a gap for air to pass through inside the packaging bag 17 between the extrusion rods 3 and the adjusting rods 14. At the same time, it makes the packaging bag 17 fit with the powder, reducing the air content inside the packaging bag 17. The adjusting rods 14 are located below the elastic cloth 9, so that when the adjusting rods 14 are close to each other, they can push the elastic cloth 9 to deform (e.g., Figure 5 Exercise Figure 6 In this state, the adjusting rod 14 will move downwards. The elastic cloth 9 can prevent the adjusting rod 14 from directly contacting the packaging bag 17 and causing friction, thereby preventing the packaging bag 17 at the position of the adjusting rod 14 from bending and stacking. Figures 5 to 6 During operation, the elastic fabric 9 always applies an outward force to the adjusting rod 14, ensuring that air remains between the two side walls of the packaging bag 17. A heat-sealing knife 5 is installed above each of the extrusion rods 3; when the two heat-sealing knives 5 are close together, they can heat and seal the opening of the packaging bag 17.

[0025] See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6Furthermore, each of the swing rods 12 of this invention is provided with several adjustment holes 13. Adjustment rods 14 are fixedly connected to the swing rods 12 via adjustment bolts 15. The adjustment holes 13 allow for adjustment of the height of the adjustment rods 14 to accommodate different powder contents within the packaging bag 17. When the powder content in the packaging bag 17 is high, adjusting the position of the adjustment rods 14 upwards avoids squeezing the powder, and vice versa. The two symmetrical swing rods 12 are misaligned to prevent interference between them after adjusting the adjustment rods 14 upwards. A rotating cylinder 7 is fitted around the adjustment rod 14, rotatably connecting to the adjustment rod 14. The rotating cylinder 7 allows for rotation, reducing the friction between the adjustment rod 14 and the elastic cloth 9.

[0026] The bottom end of the elastic cloth 9 is fixedly connected to the outside of the rotating roller 8. The two ends of the rotating roller 8 are rotatably connected to the base 1. The base 1 is equipped with a limiting device to restrict the rotation of the rotating roller 8. The rotation of the rotating roller 8 can wind up the elastic cloth 9 and adjust its length, which is suitable for different powder contents inside the packaging bag 17, and avoids the elastic cloth 9 being too tight or too loose. The limiting device can restrict the rotation of the rotating roller 8 and thus fix the working length of the elastic cloth 9. The limiting device includes a limiting threaded hole, a bolt through hole, and a limiting bolt 16. The limiting threaded hole of the limiting device is set on the base 1, the rotating roller 8 is provided with a bolt through hole, and the limiting threaded hole is provided with a matching limiting bolt 16. After the elastic cloth 9 is adjusted to a suitable length (the length of the elastic cloth only needs to be adjusted in two cases: when the size of the packaging bag changes or the amount of powder added changes), the limiting bolt 16 is passed through the bolt through hole, and then the limiting bolt 16 is twisted so that the limiting bolt 16 enters the limiting threaded hole, thus completing the restriction of the rotating roller 8. The inner side of the extrusion rod 3 is provided with an exhaust groove 6. The exhaust groove 6 can prevent the opening of the packaging bag 17 from being squeezed and sealed by the extrusion rod 3, and facilitate the expulsion of air from the inside of the packaging bag 17. An elastic rubber pad 10 is bonded to the inner side of the extrusion rod 3. The elastic rubber pad 10 can play a cushioning role and prevent the extrusion rod 3 from squeezing and damaging the packaging bag 17.

[0027] Operating principle: Place the packaging bag 17 containing powder into the space between two elastic cloths 9. The two electric telescopic rods 4 synchronously drive the two extrusion rods 3 to approach each other. After the two adjusting rods 14 come into contact with the packaging bag 17 and the elastic cloth 9, the swing rod 12 rotates (at this time, the air at the bottom of the packaging bag 17 containing powder is squeezed out by the elastic cloth 9. When the swing rod 12 swings, it will cause the adjusting rod 14 to move downward. The adjusting rod 14 and the packaging bag 17 are separated by the elastic cloth 9 and no friction is generated, so as to avoid the packaging bags 17 from stacking). The two extrusion rods 3 approach each other until they come into contact with the elastic rubber pads 10 (at this time, the air in the upper part of the packaging bag 17 without powder is squeezed out by the elastic cloth 9, and the work of expelling the air is completed). At this time, the heat sealing knife 5 can complete the heat sealing of the packaging bag 17.

[0028] In summary, this utility model provides a sealing device for bagged powder, including a base. Two venting mechanisms are symmetrically installed on the top of the base. These mechanisms facilitate the removal of excess air from the packaging bag, reducing wasted storage or transportation space for the bagged powder. The bottom end of the elastic fabric of each venting mechanism is connected to the base. The elastic fabric is more adaptable to the irregular shape of the powder inside the packaging bag, facilitating the squeezing of the bag to expel air. The top end of the elastic fabric is connected to the inner side of a squeezing rod. The squeezing rods work together to squeeze the packaging bag, ensuring the tops of the bags fit together for heat sealing. An electric telescopic rod is fixedly connected to the outer side of the squeezing rod. The electric telescopic rod is fixedly connected to the base via a bracket. The electric telescopic rod can drive the squeezing rods closer together or further apart. Both ends of the squeezing rod rotate. The device is equipped with two swing rods, with an adjusting rod installed between them. The swing rods prevent a fixed connection between the adjusting rod and the extrusion rod, thus preventing the extrusion rods from being unable to approach each other when there is powder between the adjusting rods. Torsion springs are installed at the connection points between the swing rods and the extrusion rods. These springs prevent irregular swinging and allow the swing rods to tilt when not under external force. This allows the elastic cloth at the adjusting rod position to extrude the packaging bag before the extrusion rod, ensuring that air is expelled synchronously when the extrusion rods approach each other. This prevents the packaging bag from being unable to expel air after being compressed by two extrusion rods. The adjusting rod is located below the elastic cloth, facilitating the deformation of the elastic cloth to contact the packaging bag. Heat-sealing knives are installed above each extrusion rod, and the two knives work together to heat-seal the packaging bag.

[0029] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A sealing device for bagged powder, characterized in that, Includes a base, on which two exhaust mechanisms are symmetrically mounted; The exhaust mechanism includes an elastic cloth, a compression rod, an electric telescopic rod, a swing rod, an adjusting rod, a bracket, and a torsion spring. The bottom end of the elastic cloth is connected to a base; the top end of the elastic cloth is connected to the inner side of the compression rod; the outer side of the compression rod is fixedly connected to the electric telescopic rod; the electric telescopic rod is fixedly connected to the base via the bracket; swing rods are rotatably connected to both ends of the compression rod; an adjusting rod is installed between the two swing rods; torsion springs are installed at the connection points between the swing rods and the compression rod; the adjusting rod is located below the elastic cloth. Each of the extrusion rods is equipped with a heat sealing blade.

2. The sealing device for bagged powder according to claim 1, characterized in that, Several adjustment holes are provided above each swing rod; the adjustment rod is fixedly connected to the swing rod by adjustment bolts.

3. The sealing device for bagged powder according to claim 1 or 2, characterized in that, A rotating cylinder is fitted around the adjusting rod; the rotating cylinder is rotatably connected to the adjusting rod.

4. The sealing device for bagged powder according to claim 1, characterized in that, The bottom end of the elastic fabric is fixedly connected to the outside of the rotating roller; both ends of the rotating roller are rotatably connected to the base; the base is provided with a limiting device to restrict the rotation of the rotating roller.

5. The sealing device for bagged powder according to claim 4, characterized in that, The limiting device includes a limiting threaded hole, a bolt through hole, and a limiting bolt. The limiting threaded hole of the limiting device is disposed on the base; the rotating roller is provided with a bolt through hole; and the limiting threaded hole is provided with a matching limiting bolt.

6. The sealing device for bagged powder according to claim 1, characterized in that, The inner side of the extrusion rod is provided with an exhaust groove.

7. The sealing device for bagged powder according to claim 1 or 6, characterized in that, An elastic rubber pad is bonded to the inner side of the extrusion rod.

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