Packaging bag shaping dust remover

Abstract

The utility model discloses a packaging bag shaping dust remover which comprises two belt conveyors which are mutually spliced and continuously convey packaging bags, a row brush for cleaning the bottom faces of the packaging bags is arranged in a gap between the two belt conveyors, and the row brush is located in a lower dust suction hood and extends in the breadth direction of the belt conveyors. An upper dust suction hood is arranged above a gap between the two belt conveyors, a brush roller for cleaning the top face of a packaging bag and pressing rollers for flattening the top of the packaging bag are arranged in an inner cavity of the upper dust suction hood, the brush roller is located in the middle of the inner cavity of the upper dust suction hood, and the pressing rollers are located on the front side and the rear side of the brush roller correspondingly. The axes of the brush roller and the press roller are parallel to each other and extend in the breadth direction of the belt conveyor; a gantry support spanning the upper dust suction hood is arranged on the outer side of the upper dust suction hood, and a shaping gear motor for driving the pressing roller and the brush roller is installed at the top of the gantry support. The shaping and dedusting machine for the packaging bag is simple in structure, reliable in leveling and good in dedusting effect.

Description

Technical Field

[0001] This utility model relates to a packaging bag shaping and dust removal machine, belonging to the technical field of bagged material shaping equipment. Background Technology

[0002] Flour bags, secondary flour bags, or other packaging bags with a significant amount of powder attached need to be shaped before stacking or boxing. Specifically, this involves flattening the bags as much as possible to prevent them from tilting or tipping over when stacked. Traditional shaping methods often use plate pressing or roller pressing, which have some significant problems.

[0003] For example, Chinese utility model patent with publication number CN 221190688U discloses a woven bag shaping machine, including a main frame, a support frame at the top of the main frame, several shaping shafts inside the main frame, one end of each shaping shaft being mounted on a sprocket, chains being mounted on the outside of the sprockets, several rollers being mounted on the top of the support frame, a reducer being mounted on the side of the main frame, a drive motor being mounted on the reducer, conveyor belts being mounted at the front and rear ends of the main frame, and support legs being mounted at the bottom ends of the main frame and the conveyor belts, the rotating end of the drive motor being concentrically connected to the input end of the reducer, the output end of the reducer being concentrically connected to one of the shaping shafts, the shaping shaft being rotatably connected to the main frame, the rollers being rotatably connected to the support frame, and the longitudinal section of the shaping shaft being a regular polygon.

[0004] This technical solution can flatten and shape woven bags for products such as bagged rice and bagged flour, facilitating subsequent conveying and palletizing. However, it has the following problems: when the bags pass through the shaping machine, the flour inside is squeezed and spills out from the seams, and a certain amount of dust often adheres to the outside of the packaging. However, existing shaping and conveying equipment is not equipped with an effective dust removal device, making it unable to handle the dust accumulated on the conveying equipment or during conveying. This results in dust generated during conveying not being cleaned up in a timely manner, accumulating not only on the conveying equipment but also spreading into the surrounding environment.

[0005] This situation not only affects the cleanliness of the production area and the quality of the working environment, but also adversely impacts the long-term operation of equipment, shortening its lifespan. More seriously, dust accumulation can become a trigger for dust explosions, increasing the risk of dust explosions and posing a potential safety hazard. Furthermore, untreated dust can become moldy, promote bacterial growth, or breed pests, further threatening food safety and hygiene, and increasing the labor costs required for cleaning. Utility Model Content

[0006] The purpose of this invention is to overcome the problems existing in the prior art and provide a packaging bag shaping and dust removal machine with simple structure, low cost, reliable leveling, and convenient dust removal, collection and treatment. It effectively improves the conveying environment of packaging bags, reduces the harm of bacteria or pests caused by dust accumulation, and avoids the risk of dust explosion.

[0007] To solve the above technical problems, this utility model provides a packaging bag shaping and dust removal machine, which includes two belt conveyors that are spliced ​​together to continuously transport packaging bags. A brush is provided in the gap between the two belt conveyors to clean the bottom surface of the packaging bags. The brush is located in the lower dust collection hood and extends along the width of the belt conveyor.

[0008] An upper dust suction hood is installed above the gap between the two belt conveyors. The inner cavity of the upper dust suction hood is equipped with a brush roller for cleaning the top surface of the packaging bag and a pressure roller for flattening the top of the packaging bag. The brush roller is located in the middle of the inner cavity of the upper dust suction hood, and the pressure roller is located on the front and rear sides of the brush roller. The axes of the brush roller and the pressure roller are parallel to each other and extend along the width direction of the belt conveyor. A gantry bracket spanning the upper dust suction hood is provided on the outer side of the upper dust suction hood, and a shaping reduction motor for driving the pressure roller and the brush roller is installed on the top of the gantry bracket.

[0009] Furthermore, a main drive sprocket is installed on the output shaft end of the shaping reduction motor, and brush roller sprockets are installed on both ends of the brush roller. The main drive sprocket is connected to the brush roller sprocket on one side and the pressure roller sprocket at the front pressure roller shaft end via a main chain.

[0010] Furthermore, the brush roller sprocket on the other side is connected to the rear pressure roller sprocket via a second chain, and the rear pressure roller sprocket is fixed to the shaft end of the rear pressure roller.

[0011] Furthermore, the front pressure roller is a patterned pressure roller, and the rear pressure roller is a flat pressure roller.

[0012] Furthermore, the two sides of the pressure roller are respectively supported on the free ends of the pressure roller swing arms, and the root of the pressure roller swing arms is respectively hinged to the shaft end of the brush roller; the middle of each pair of pressure roller swing arms is connected by a swing arm connecting rod, and a pair of connecting rod lugs are welded to the middle section of the swing arm connecting rod. The free end of the connecting rod lug is hinged to the lower end of the spring shaft. The middle part of the spring shaft passes through the radial through hole of the fixed shaft, and springs are pressed on the upper and lower parts of the fixed shaft respectively. An adjusting nut is pressed on the top of the upper spring, and the adjusting nut is screwed onto the upper threaded section of the spring shaft.

[0013] The beneficial effects of this utility model are as follows: 1. The shaping machine shapes the packaging bags during material conveying. Dust-raising brushes are provided at both ends of the drive shaft. The dust-raising brushes rotate with the drive shaft and clean the surface of the packaging bags, raising the powder adhering to the surface of the bags and sucking it away through negative pressure vacuum. There is a pair of dust-raising brushes at the top and bottom. When the packaging bags pass through the shaping machine, the dust-raising brush at the top cleans the upper surface of the packaging bags, and the dust-raising brush at the bottom cleans the lower surface of the packaging bags.

[0014] 2. Because the suction hood draws air outward, it creates negative pressure inside the shaping machine. When the double rollers of the shaping machine squeeze and straighten the packaging bag, some of the powder in the packaging bag will be squeezed out from the gaps in the packaging bag and sucked away by the suction hood. This effectively improves the packaging bag conveying environment and reduces the growth of bacteria or pests due to powder accumulation.

[0015] 3. The suction hood located above the conveyor is equipped with silicone curtains at both the air inlet and outlet, which provide a certain degree of sealing while not hindering the transport of the bags. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0017] Figure 1 This is a front sectional view of the packaging bag shaping and dust removal machine of this utility model;

[0018] Figure 2 for Figure 1 Top view;

[0019] Figure 3 for Figure 1 A three-dimensional image;

[0020] Figure 4 This is a diagram showing the working state of this utility model;

[0021] Figure 5 This is a front view of the belt of this utility model after the dust collection cover has been removed;

[0022] Figure 6 for Figure 5 Top view;

[0023] Figure 7 for Figure 5 A three-dimensional image;

[0024] In the diagram: 1. Belt conveyor; 1a. Belt motor; 2. Brush; 3. Lower dust hood; 3a. Lower dust duct; 4. Upper dust hood; 4a. Upper dust duct; 5. Dust removal equipment; 6. Shaping geared motor; 6a. Main drive sprocket; 7. Main chain; 8. Pressure roller; 8a. Pressure roller sprocket; 9. Second chain; 10. Brush roller; 10a. Brush roller sprocket; 11. Gantry bracket; 12. Fixed shaft; 13. Spring shaft; 14. Spring; 15. Adjusting nut; 16. Swing arm connecting rod; 16a. Connecting rod lug; 17. Pressure roller swing arm. Detailed Implementation

[0025] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device must have a specific orientation.

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] like Figures 1 to 7 As shown, the packaging bag shaping and dust removal machine of this utility model includes a belt conveyor 1, a shaping device and a dust removal device. The shaping device includes a shaping reduction motor 6, a pressure roller 8 and a pressure roller tension adjustment mechanism. The dust removal device includes a brush 2, a lower dust suction hood 3, an upper dust suction hood 4, a brush roller 10 and a dust removal device 5.

[0029] Two belt conveyors 1 are connected end to end to continuously transport packaging bags, each driven by a belt motor 1a. A brush 2 is installed in the gap between the two belt conveyors 1, with bristles facing upwards, extending along the width of the belt conveyor 1 and located within the lower dust collection hood 3. As the packaging bag passes between the two belt conveyors 1, the brush 2 cleans the bottom surface of the packaging bag.

[0030] An upper dust suction hood 4 is provided above the gap between the two belt conveyors. The inner cavity of the upper dust suction hood 4 is equipped with a brush roller 10 for cleaning the top surface of the packaging bag and a pressure roller 8 for flattening the top of the packaging bag. The brush roller 10 is located in the middle of the inner cavity of the upper dust suction hood 4, and the pressure roller 8 is located on the front and rear sides of the brush roller 10. The axes of the brush roller 10 and the pressure roller 8 are parallel to each other and extend along the width direction of the belt conveyor. A gantry bracket 11 is provided on the outer side of the upper dust suction hood 4, which spans the upper dust suction hood 4. A shaping reduction motor 6 for driving the pressure roller 8 and the brush roller 10 is installed on the top of the gantry bracket 11.

[0031] The output shaft of the shaping reduction motor 6 is equipped with a main drive sprocket 6a. Brush roller sprockets 10a are installed at both ends of the brush roller 10. The main drive sprocket 6a is connected to the brush roller sprocket 10a on one side and the pressure roller sprocket 8a at the shaft end of the front pressure roller via the main chain 7. The brush roller sprocket 10a on the other side is connected to the pressure roller sprocket 8a of the rear pressure roller via the second chain 9. The rear pressure roller sprocket is fixed to the other shaft end of the rear pressure roller.

[0032] After the shaping reduction motor 6 starts, the main drive sprocket 6a drives the brush roller sprocket 10a and the pressure roller sprocket at the front pressure roller shaft end to rotate through the main chain 7, thereby driving the brush roller 10 and the front pressure roller to rotate. The brush roller sprocket 10a on the other side of the brush roller 10 drives the rear pressure roller sprocket and the rear pressure roller to rotate through the second chain 9.

[0033] The front pressure roller is a patterned pressure roller, composed of multiple evenly distributed small-diameter tubes, used to initially flatten the top of the packaging bag. The rear pressure roller is a single flat pressure roller, used to flatten the entire top of the packaging bag.

[0034] The two sides of the pressure roller 8 are supported on the free ends of the pressure roller swing arm 17, and the root of the pressure roller swing arm 17 is hinged to the shaft end of the brush roller 10. The middle of each pair of pressure roller swing arms 17 is connected by a swing arm connecting rod 16. A pair of connecting rod lugs 16a are welded to the middle section of the swing arm connecting rod 16. The free end of the connecting rod lug 16a is hinged to the lower end of the spring shaft 13. The middle part of the spring shaft 13 passes through the radial through hole of the fixed shaft 12, and springs 14 are pressed on the upper and lower parts of the fixed shaft 12 respectively. An adjusting nut 15 is pressed on the top of the upper spring. The adjusting nut 15 is screwed onto the upper threaded section of the spring shaft 13.

[0035] By adjusting the nut 15 to tighten the spring, the lower end of the spring shaft 13 applies pressure to the swing arm connecting rod 16 through the connecting rod lug 16a. The swing arm connecting rod 16 drives the pressure roller swing arm 17 to press down, and the free end of the pressure roller swing arm 17 drives the pressure roller to press firmly on the packaging bag.

[0036] When the packaging bag moves between the two belt conveyors, the dust at the bottom is brushed up by the brush 2; the dust on the upper surface is lifted up by the rotating brush roller 10. During the leveling process, some of the powder inside the bag will overflow from the gap at the bag opening due to the compression. Since the upper dust hood 4 and the lower dust hood 3 are both under negative pressure, the lifted powder is sucked into the dust removal equipment 5 along the upper dust duct 4a and the lower dust duct 3a for dust removal.

[0037] Silicone curtains can be hung at the inlet and outlet of the upper dust hood 4 to reduce air leakage and not hinder the transport of packaging bags.

[0038] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A packaging bag shaping and dust removal machine, comprising two belt conveyors continuously conveying packaging bags by being spliced ​​together, characterized in that: A brush is provided in the gap between the two belt conveyors to clean the bottom of the packaging bag. The brush is located in the lower dust hood and extends along the width of the belt conveyor. An upper dust suction hood is installed above the gap between the two belt conveyors. The inner cavity of the upper dust suction hood is equipped with a brush roller for cleaning the top surface of the packaging bag and a pressure roller for flattening the top of the packaging bag. The brush roller is located in the middle of the inner cavity of the upper dust suction hood, and the pressure roller is located on the front and rear sides of the brush roller. The axes of the brush roller and the pressure roller are parallel to each other and extend along the width direction of the belt conveyor. A gantry bracket spanning the upper dust suction hood is provided on the outer side of the upper dust suction hood, and a shaping reduction motor for driving the pressure roller and the brush roller is installed on the top of the gantry bracket.

2. The packaging bag shaping and dust removal machine according to claim 1, characterized in that: The output shaft of the shaping reduction motor is equipped with a main drive sprocket, and brush roller sprockets are respectively installed at both ends of the brush roller. The main drive sprocket is connected to the brush roller sprocket on one side and the pressure roller sprocket at the front pressure roller shaft end through the main chain.

3. The packaging bag shaping and dust removal machine according to claim 2, characterized in that: The brush roller sprocket on the other side is connected to the rear pressure roller sprocket via a second chain, and the rear pressure roller sprocket is fixed to the shaft end of the rear pressure roller.

4. The packaging bag shaping and dust removal machine according to claim 3, characterized in that: The front pressure roller is a patterned pressure roller, and the rear pressure roller is a flat pressure roller.

5. The packaging bag shaping and dust removal machine according to any one of claims 1 to 4, characterized in that: The two sides of the pressure roller are respectively supported on the free ends of the pressure roller swing arms, and the root of the pressure roller swing arms is respectively hinged to the shaft end of the brush roller; the middle of each pair of pressure roller swing arms is connected by a swing arm connecting rod, and a pair of connecting rod lugs are welded to the middle section of the swing arm connecting rod. The free end of the connecting rod lug is hinged to the lower end of the spring shaft. The middle part of the spring shaft passes through the radial through hole of the fixed shaft, and springs are pressed on the upper and lower parts of the fixed shaft respectively. An adjusting nut is pressed on the top of the upper spring, and the adjusting nut is screwed onto the upper threaded section of the spring shaft.

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