Packaging machine dust removal device and powder packaging machine

Abstract

The utility model belongs to powder production technical field provides a dust removal device and powder packaging machine of packaging machine, including setting dust absorption cover of packaging machine casing side part, be provided with dust absorption mouth of packaging machine discharge gate to dust absorption cover, dust absorption cover still is connected with dust remover through adjusting assembly, wherein adjusting assembly includes first dust absorption pipe, second dust absorption pipe and automatic control valve, one end of first dust absorption pipe with dust absorption cover intercommunication, the other end with dust remover intercommunication, one end of second dust absorption pipe with dust absorption cover intercommunication, the other end with dust remover intercommunication, automatic control valve is connected on second dust absorption pipe, automatic control valve opens or closes according to the working condition of packaging machine. Powder packaging machine includes preceding packaging machine dust removal device. The utility model provides packaging machine dust removal device and powder packaging machine have good dust removal effect and the advantages such as energy saving and cost reduction simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of powder production technology, and in particular relates to a dust removal device for packaging machines and a powder packaging machine. Background Technology

[0002] In the process of large-scale industrial powder production, fine powder is inevitably generated. During packaging, as the powder falls into the packaging bag, the fine powder floats upwards and escapes, settling on the packaging machine's casing, belts, and other surfaces, resulting in dust accumulation and floating. Dust has adverse effects on human health, production processes, safety, and the environment. Firstly, it harms human health. Workers exposed to industrial dust for extended periods experience a gradual increase in dust accumulation in their lungs, which can lead to pneumoconiosis when it reaches a certain level. Long-term exposure can also cause respiratory diseases such as rhinitis, pharyngitis, and bronchitis, as well as skin and mucous membrane damage, rashes, dermatitis, and conjunctival damage. Secondly, regarding safety, accumulated dust can cause explosions, posing a higher risk and greater hazard. Thirdly, it harms production. Dust in the workplace can adhere to high-precision instruments and meters, reducing their accuracy; it can also adhere to the transmission and moving parts of machinery, causing severe wear and shortening their lifespan. Finally, there is the harm to the environment. Dust floating in the air can cause other harmful substances to adhere to it, resulting in serious air pollution.

[0003] Therefore, it is necessary to install a matching dust removal device for the powder packaging machine to solve the above-mentioned technical problems. Related technologies typically install a dust suction port near the material discharge port of the packaging machine to collect dust. However, the dust removal device installed in these technologies (e.g.) Figure 1 The negative pressure suction of the dust collection port of the packaging machine dust removal device shown is mostly constant, or a regulating valve is set in the negative pressure pipeline to adjust the valve opening to adapt to certain long-term working condition changes. However, the relevant technology cannot repeatedly adjust the negative pressure suction of the dust collection port of the dust removal device according to whether the packaging machine is feeding and circulating, which causes the dust removal device to work in a high load state all the time, resulting in high energy consumption of the dust removal fan. Summary of the Invention

[0004] To overcome the problems existing in the related technologies, this application provides a dust removal device for packaging machines and a powder packaging machine.

[0005] The first aspect of this utility model provides a dust removal device for a packaging machine, including a dust suction hood disposed on the side of the packaging machine housing, the dust suction hood having a dust suction port facing the material discharge port of the packaging machine, and the dust suction hood being connected to a dust collector via an adjustment component; The regulating component includes a first suction pipe, a second suction pipe, and a self-regulating valve. One end of the first suction pipe is connected to the suction hood, and the other end is connected to the dust collector. One end of the second suction pipe is connected to the suction hood, and the other end is connected to the dust collector. The self-regulating valve is connected to the second suction pipe and opens or closes according to the working status of the packaging machine.

[0006] In some embodiments, the dust removal device for the packaging machine further includes a controller connected to the automatic control valve and the packaging machine weighing device. The packaging machine weighing device is used to weigh the packaging bags located below the feeding port of the packaging machine. The controller can control the automatic control valve to open or close according to the signal from the packaging machine weighing device.

[0007] In some embodiments, the self-controlled valve is a pneumatic valve.

[0008] In some embodiments, the dust collector is a bag filter.

[0009] In some embodiments, the suction port is located in the lower middle part of the inner side of the suction hood, the upper inner side of the suction hood is fixedly connected to the side of the packaging machine housing, and the upper outer side of the suction hood is connected to the adjustment component.

[0010] In some embodiments, the bottom inner side of the dust hood is tilted outward at a certain angle relative to the lower inner side of the dust hood.

[0011] In some embodiments, the upper outer part of the dust hood is provided as a first inclined plate, the top of the first inclined plate being closer to the packaging machine housing than the bottom, and the first inclined plate is provided with a connecting part for connection to the adjustment assembly.

[0012] In some embodiments, the lower outer part of the dust hood is provided as a second inclined plate, the bottom of the second inclined plate being closer to the side of the packaging machine housing than the top.

[0013] In some embodiments, at least two dust hoods are provided, and the plurality of dust hoods are circumferentially distributed on the side of the packaging machine housing.

[0014] The second aspect of this utility model provides a powder packaging machine, including the dust removal device for packaging machines described in any of the preceding claims.

[0015] In the dust removal device for packaging machines provided by this utility model, the adjusting component can increase the negative pressure of the dust suction port when the powder packaging machine is discharging material, that is, increase the suction air volume of the dust suction port. As long as there is dust at the discharge port, it will be sucked away instantly, ensuring that the dust does not accumulate or drift. After the pneumatic valve is closed, when the powder packaging machine stops discharging material, no large amount of material dust will be generated, but a small amount of dust will still drift away. The adjusting component can reduce the negative pressure of the dust suction port, that is, reduce the suction air volume of the dust suction port, so that the small amount of drifting dust will continue to be sucked away. Therefore, the dust removal device for packaging machines provided by this utility model can use a large negative pressure to quickly suck away dust when discharging material, and can also use a small negative pressure to suck away the remaining small amount of drifting material when discharging material, thereby reducing the overall load of the dust removal fan in the dust removal device of the packaging machine and achieving an energy-saving effect. Therefore, the dust removal device for packaging machines provided by this utility model has the advantages of good dust removal effect and energy saving.

[0016] The powder packaging machine provided by this utility model has the advantages of a packaging machine dust removal device because it includes a dust removal device for packaging machines, which will not be elaborated here. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the dust removal device installed on the packaging machine in the relevant technology.

[0019] Figure 2 This is a schematic diagram showing the dust removal device for a packaging machine installed on a packaging machine, according to a specific embodiment of this utility model.

[0020] The following labels are shown in the attached diagram: 1. Packaging machine housing; 2. Dust hood; 21. First inclined plate; 22. Second inclined plate; 3. Packaging machine feed port; 4. Dust suction port; 5. Adjustment component; 51. First dust suction pipe; 52. Second dust suction pipe; 53. Automatic control valve; 6. Control actuator; 7. Packaging machine hopper; 8. Packaging bag. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figure 2 , Figure 2 This is a schematic diagram showing the dust removal device for a packaging machine installed on a packaging machine, according to a specific embodiment of this utility model.

[0023] The dust removal device for a packaging machine provided in this embodiment includes a dust suction hood 2 disposed on the side of the packaging machine housing 1. The dust suction hood 2 has a dust suction port 4 facing the packaging machine's discharge port 3. The discharge port is located at the center of the packaging machine housing 1, and a packaging machine hopper 7 is disposed above the discharge port 3. The dust suction hood 2 is also connected to a dust collector via an adjusting assembly 5. The adjusting assembly 5 includes a first suction pipe 51, a second suction pipe 52, and a self-regulating valve 53. One end of the first suction pipe 51 is connected to the dust suction hood 2, and the other end is connected to the dust collector. One end of the second suction pipe 52 is connected to the dust suction hood 2, and the other end is connected to the dust collector. The self-regulating valve 53 is connected to the second suction pipe 52 and opens or closes according to the operating status of the packaging machine.

[0024] The dust removal device for packaging machines provided in this embodiment of the utility model has two suction pipes, a first suction pipe 51 and a second suction pipe 52, installed between the dust removal hood and the dust collector. A self-regulating valve 53 is installed on the second suction pipe 52. When the powder packaging machine is discharging material, the self-regulating valve 53 can be opened, which is equivalent to the simultaneous operation of the two negative pressure pipes, resulting in a relatively large suction negative pressure. Conversely, when the packaging machine is not discharging material, the self-regulating valve 53 can be closed, at which point only the first suction pipe 51 is operational, resulting in a relatively small suction negative pressure. Furthermore, the self-regulating valve 53 can be repeatedly opened and closed cyclically, and its opening and closing can instantaneously change the negative pressure at the suction port 4.

[0025] In other words, the regulating component 5, including the two suction pipes and the automatic control valve 53, can easily and cyclically adjust the negative pressure of the suction port 4 according to the working status of the packaging machine. This allows the regulating component 5 to increase the suction negative pressure of the suction port 4 when the powder packaging machine is discharging material, thus increasing the suction airflow. Any dust at the discharge port will be instantly sucked away, ensuring that dust does not accumulate or drift. When the powder packaging machine stops discharging material, no large amount of material dust is generated, but a small amount of dust still drifts away. At this time, the regulating component 5 can reduce the suction negative pressure of the suction port 4, thus reducing the suction airflow, so that the small amount of drifting dust will continue to be drawn away. Therefore, the dust removal device for packaging machines provided in this embodiment can quickly remove dust using a large negative pressure during material feeding, and can also remove the remaining small amount of drifting material using a small negative pressure when not feeding. This allows for smooth adjustment of the dust removal fan's speed via a frequency converter, combined with instantaneous adjustment of the opening and closing of the self-control valve 53, reducing the overall load on the dust removal fan in the packaging machine dust removal device and achieving energy-saving effects. Thus, the dust removal device for packaging machines provided in this embodiment has both good dust removal effect and energy-saving advantages.

[0026] Based on the above embodiments, the dust removal device for the packaging machine also includes a controller (not shown in the figure). The controller is connected to the automatic control valve 53 and the packaging machine weighing device (not shown in the figure). The packaging machine weighing device is used to weigh the powder in the packaging machine hopper 7. The controller can control the actuator 6 to open or close the automatic control valve 53 according to the signal from the weighing device. In this embodiment, when the weight sensor in the weighing device detects that the packaging machine has started feeding (the weight sensor is used to detect the weight change of the powder in the packaging machine hopper 7 in real time. When the weight change rate reaches the set value, it is determined that the packaging machine has started feeding), it indicates that the packaging bag 8 has started feeding. The controller controls the actuator 6 to open the automatic control valve 53. The first suction pipe 51 and the second suction pipe 52, two negative pressure pipes, work simultaneously, and the suction port 4 sucks up dust through a large negative pressure. When the weight sensor in the weighing device detects that the packaging machine has stopped feeding (the weight sensor is used to detect the weight change of the powder in the packaging machine's hopper 7 in real time; when the weight change rate reaches below a set value, it is determined that the packaging machine has stopped feeding), the controller controls the actuator 6 to close the automatic control valve 53, and the dust suction port 4 uses a small negative pressure to suction dust. In this embodiment, the weighing device is used to identify whether the packaging machine is feeding, and the identification signal is reliable. Of course, in other embodiments, the working status of the packaging machine can also be identified by monitoring other signals; this embodiment is not limited to this.

[0027] Understandably, the controller can also control the actuator 6 to delay for 1-5 seconds after the material feeding is completed before closing the automatic control valve 53, so as to avoid dust from being generated when the packaging bag 8 is released after packaging during the packaging process. At the same time, it ensures that the dust on the bag opening that is impacted when the packaging bag 8 falls and comes into contact with the conveyor belt is quickly sucked away by the dust suction port 4, so as to prevent dust from falling.

[0028] In some embodiments, specifically, the self-controlled valve 53 is a pneumatic valve. Pneumatic valves use compressed air as a power source, fundamentally avoiding the risk of electrical sparks generated by electrical components, and are especially suitable for flammable and explosive environments, thus making them suitable for use in powder packaging machines.

[0029] In some embodiments, the dust collector is a bag filter. Bag filters have the advantages of high dust removal efficiency and a wide range of air volume handling capabilities, making them particularly suitable for dust removal in powder packaging machines.

[0030] like Figure 1 As shown, in the related technology, on the powder packaging machine, there is only one downward-facing square straight-through dust suction port 4 on the side of the feeding port 3. The main problems with the square straight-through dust suction port 4 are as follows: 1. The opening of the square straight-through dust suction port 4 is wide, making it difficult for dust to accumulate. The dust removal effect is too poor during packaging, and the dust material floats around, failing to perform the dust removal function. 2. During the packaging process, dust floats everywhere, and dust can easily accumulate on the packaging equipment, creating a local explosion environment.

[0031] In view of this, in some embodiments, the suction port 4 is located in the lower-middle part of the inner side of the suction hood 2, the upper-middle part of the inner side of the suction hood 2 is fixedly connected to the side of the packaging machine housing 1, and the upper-outer part of the suction hood 2 is connected to the adjustment component 5. Positioning the suction port 4 in the lower-middle part of the inner side of the suction hood 2, rather than directly below it, facilitates the rapid removal of a large amount of dust at the junction of the packaging machine's feed inlet 3 and the packaging bag 8, thereby preventing the instantaneous drifting dust in the environment from being inhaled by personnel and also preventing dust from spreading across the equipment and creating a localized explosion environment. Positioning the suction port 4 in the lower-middle part of the inner side of the suction hood 2 also allows for adjusting the opening size of the suction port 4 according to the situation, making it easier for dust to accumulate at the suction port 4.

[0032] Based on the above embodiment, the bottom inner side of the dust hood 2 is tilted outward at a certain angle relative to the lower inner side of the dust hood 2. This is equivalent to at least a portion of the dust suction port 4 in the lower inner side of the dust hood 2 facing inward and downward, which facilitates the suction of dust from both the inside and bottom of the packaging machine housing 1, thereby improving the dust suction effect of the packaging machine dust removal device in this embodiment.

[0033] Based on the above embodiment, the upper outer part of the dust hood 2 is provided as a first inclined plate 21. The top of the first inclined plate 21 is closer to the packaging machine housing 1 than the bottom. The first inclined plate 21 is provided with a connecting part for connection with the adjustment assembly 5. The adjustment assembly 5 includes a first suction pipe 51 and a second suction pipe 52. The inclined top of the first inclined plate 21 is more convenient to connect with the first suction pipe 51 and the second suction pipe 52, which are generally not arranged vertically.

[0034] Based on the above embodiment, the lower outer part of the dust hood 2 is configured as a second inclined plate 22, and the bottom of the second inclined plate 22 is closer to the packaging machine housing 1 than the top. By configuring the lower outer part of the dust hood 2 as an inclined structure, the probability of dust materials adhering to this location can be reduced, making it easier to keep the inside of the dust hood 2 clean.

[0035] In some embodiments, at least two dust suction hoods 2 are provided, and the plurality of dust suction hoods 2 are evenly distributed around the sides of the packaging machine housing 1. The even distribution of dust suction hoods 2 enables the negative pressure suction to be evenly distributed around the packaging machine discharge port 3, thereby improving the dust removal effect of the packaging machine dust removal device. Specifically, in this embodiment, two dust suction hoods 2 are provided, respectively located on the left and right sides of the packaging machine housing 1.

[0036] This embodiment also provides a powder packaging machine, including the dust removal device for packaging machines described above. Since the powder packaging machine includes the dust removal device, it possesses the advantages of a dust removal device for packaging machines, which will not be elaborated further here.

[0037] After the dust removal device of the packaging machine in this embodiment is used, there is basically no dust accumulation on the equipment, which prevents dust from being scattered and inhaled by the operators.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0039] The mechanism provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, this utility model is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust removal device for a packaging machine, characterized in that, Includes a dust suction hood (2) located on the side of the packaging machine housing (1), the dust suction hood (2) having a dust suction port (4) facing the packaging machine discharge port (3), and the dust suction hood (2) being connected to a dust collector via an adjustment component (5); wherein, The adjustment component (5) includes a first suction pipe (51), a second suction pipe (52), and a self-control valve (53). One end of the first suction pipe (51) is connected to the dust hood (2), and the other end is connected to the dust collector. One end of the second suction pipe (52) is connected to the dust hood (2), and the other end is connected to the dust collector. The self-control valve (53) is connected to the second suction pipe (52), and the self-control valve (53) opens or closes according to the working status of the packaging machine.

2. The dust removal device for packaging machines according to claim 1, characterized in that, It also includes a controller, which is connected to the self-controlled valve (53) and the packaging machine weigher. The packaging machine weigher is used to weigh the powder in the packaging machine hopper (7). The controller can control the self-controlled valve (53) to open or close according to the signal from the packaging machine weigher.

3. The dust removal device for packaging machines according to claim 1, characterized in that, The self-controlled valve (53) is a pneumatic valve.

4. The dust removal device for packaging machines according to claim 1, characterized in that, The dust collector is a bag filter.

5. The dust removal device for a packaging machine according to any one of claims 1-4, characterized in that, The suction port (4) is located in the lower middle part of the inner side of the suction hood (2), the upper inner side of the suction hood (2) is fixedly connected to the side of the packaging machine housing (1), and the upper outer side of the suction hood (2) is connected to the adjustment component (5).

6. The dust removal device for a packaging machine according to claim 5, characterized in that, The bottom inner side of the dust cover (2) is tilted outward at a certain angle relative to the lower inner side of the dust cover (2).

7. The dust removal device for a packaging machine according to claim 5, characterized in that, The upper outer part of the dust hood (2) is provided with a first inclined plate (21), the top of the first inclined plate (21) is closer to the packaging machine housing (1) than the bottom, and the first inclined plate (21) is provided with a connecting part that is connected to the adjustment component (5).

8. The dust removal device for a packaging machine according to claim 5, characterized in that, The lower outer part of the dust hood (2) is provided as a second inclined plate (22), and the bottom of the second inclined plate (22) is closer to the side of the packaging machine housing (1) than the top.

9. The dust removal device for a packaging machine according to claim 1, characterized in that, The dust collection hood (2) is configured as at least two, and multiple dust collection hoods (2) are evenly distributed circumferentially on the side of the packaging machine housing (1).

10. A powder packaging machine, characterized in that, The packaging machine dust removal device includes any one of the preceding claims 1-9.

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