Bag unfolding dust collection pipe

Abstract

The utility model discloses a bag unfolding dust suction pipe, and relates to the technical field of packaging machines. Comprising a support fixed to a bag unfolding tool, a connecting pipe is fixed to the side face of the support, the bottom of the connecting pipe is fixedly communicated with a dust suction pipe, and the dust suction pipe is longitudinally arranged at the top of the bag unfolding tool. The dust collection device is provided with the connecting pipe and the dust collection pipe, the groove type dust collection openings distributed at equal intervals are formed in the dust collection pipe, the dust collection pipe is longitudinally arranged at the top of the bag unfolding tool, and the dust collection pipe is parallel to the moving direction of a packaging bag, so that when a bag opening is unfolded, the bag opening is sucked by a suction fan, and the bag opening is sucked by the suction fan. According to the bag-unfolding dust suction pipe, a fluid channel is optimized, turbulent flow and resistance of fluid in the dust suction pipe are reduced, pressure loss is reduced, a local negative pressure area can be formed through the reasonably-distributed groove type dust suction ports, and the dust suction efficiency is improved. The fluid suction capacity of the pipeline is enhanced, and the fluid conveying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically to a bag unfolding and dust suction pipe. Background Technology

[0002] The horizontal packaging machine is an automatic composite film packaging machine independently developed to meet the diverse packaging materials and adjustable packaging bag types. Because the machine adopts a horizontal fully automatic bag making, filling and sealing method, it is named a horizontal packaging machine. Due to the use of a horizontal mold movement method, it can package different bag types and materials according to different material properties, and is suitable for automatic packaging of various powders, sauces and granules.

[0003] Chinese utility model patent, authorization announcement number CN221852399U, discloses a bag-type horizontal automatic packaging machine. Two sets of movable support rods are installed at the bottom of the top rod. The middle of the two sets of movable support rods is movably fitted with a flip plate. The bottom of the movable support rod is movably fitted with the middle of the lower pressure plate. The bottom of the lower pressure plate is connected and fixed to the top of a small telescopic rod. Movable support rods, movably fitted at both ends of the flip plate, extend and press the small telescopic rod downwards through the lower pressure plate, causing the sealing block at the top to move downwards. This allows the material transferred from the two side conveying components to be hot-stamped and sealed in the middle, fulfilling operational requirements. Compared to existing structures, this device can quickly form and seal the packaging.

[0004] In powder packaging, the bag opening needs to be flattened before sealing. During this process, a small amount of dust will be released. To reduce environmental pollution, a dust extraction pipe connected to a fan is needed to absorb the dust. However, the dust extraction devices of existing horizontal packaging machines are not designed reasonably, such as having a small diameter, a shape that does not match the dust generation area, or a dust extraction pipe that is too long or has too many bends. These factors cause the suction power to be greatly weakened during transmission, resulting in less suction power actually applied to the dust area. At the same time, the fan needs to operate at a high load to maintain a certain dust extraction effect, which leads to high energy consumption and low dust extraction efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a dust collection tube for spreading bags to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bag-spreading dust suction pipe, including a bracket fixed to the bag-spreading fixture, a connecting pipe fixed to the side of the bracket, a dust suction pipe fixedly connected to the bottom of the connecting pipe, the dust suction pipe being longitudinally arranged at the top of the bag-spreading fixture, and the dust suction pipe being parallel to the direction of movement of the packaging bag.

[0007] The bottom of the suction pipe has several slotted suction ports. When the bag is unfolded, the dust generated enters the suction pipe through the slotted suction ports.

[0008] Preferably, the grooved suction ports are evenly distributed at the bottom of the suction pipe.

[0009] Preferably, the arc length of the groove-shaped suction port is 1 / 4 to 1 / 2 times the circumference of the suction pipe.

[0010] Preferably, the bottom of the suction pipe has extension openings on both sides that are connected to the grooved suction port.

[0011] Preferably, an arc-shaped plate is formed between two adjacent slotted dust collection ports, and a fixing block is fixed to the top of the arc-shaped plate, with inclined surfaces formed on both sides of the fixing block.

[0012] Preferably, the angle formed by the two inclined surfaces at the top of the fixing block is 30-60°.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This bag-spreading dust collection pipe is equipped with a connecting pipe and a suction pipe, and has several equally spaced slotted suction ports on the suction pipe. Because the suction pipe is vertically positioned at the top of the bag-spreading fixture and parallel to the direction of movement of the packaging bag, when the bag opening is flattened, a small amount of dust ejected by the suction force of the fan will enter the suction pipe through the slotted suction ports, thereby absorbing the dust. This bag-spreading dust collection pipe reduces turbulence and resistance of the fluid in the suction pipe by optimizing the fluid channel, thereby reducing pressure loss. Through the reasonable distribution of slotted suction ports, a local negative pressure area can be formed, enhancing the pipe's suction capacity for the fluid and improving fluid transport efficiency. Attached Figure Description

[0015] Figure 1 This is a connection diagram of the present invention;

[0016] Figure 2 This is an axial view of the dust collection component of this utility model;

[0017] Figure 3 This is a front view schematic diagram of the dust collection component of this utility model;

[0018] Figure 4 This is a bottom view of the dust collection component of this utility model;

[0019] Figure 5 This is a schematic diagram showing the dimensions of the groove-type dust extraction port of this utility model;

[0020] Figure 6 This is a half-sectional view of the suction pipe in the second embodiment of the present invention;

[0021] Figure 7 This is a half-sectional view of the suction pipe in the third embodiment of this utility model.

[0022] In the diagram: 1. Bag unfolding fixture; 2. Sealing fixture; 301. Connecting pipe; 302. Dust suction pipe; 303. Support; 304. Slotted dust suction port; 305. Extension port; 401. Fixing block; 402. Sloping surface. Detailed Implementation

[0023] 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.

[0024] The dust extraction pipe in this solution is used on a horizontal packaging machine. When packaging powder, the bag opening needs to be flattened before sealing. During the flattening process, a small amount of dust will be emitted. In order to reduce environmental pollution, it is necessary to connect a dust extraction pipe to a fan to absorb the dust.

[0025] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a bag-spreading dust suction pipe, including a bracket 303 fixed to the bag-spreading fixture 1, a connecting pipe 301 fixed on the side of the bracket 303, the connecting pipe 301 being connected to a suction fan (not shown in the figure) through a pipe, and a dust suction pipe 302 being fixedly connected to the bottom of the connecting pipe 301. The dust suction pipe 302 is longitudinally arranged on the top of the bag-spreading fixture 1, and the dust suction pipe 302 is parallel to the moving direction of the packaging bag. This can reduce the overall volume of the bag-spreading fixture 1. It is understood that the number of bag-spreading dust suction pipes in this solution can be set to multiple, thereby adapting to different numbers of bag-spreading fixtures 1 in the horizontal packaging machine.

[0026] Several equally spaced grooved suction ports 304 are provided at the bottom of the suction pipe 302. In this way, when the bag opening is flattened, a small amount of dust will be ejected by the suction of the fan and enter the suction pipe 302 through the grooved suction ports 304. Finally, it will be discharged through the connecting pipe 301. The packaging bag with the bag opening flattened is sealed by the sealing fixture 2.

[0027] Example 2: If the arc length of the slotted suction port 304 is too small, it will affect the adsorption effect. If the arc length of the slotted suction port 304 is too large, it will increase the load on the suction fan. In order to improve the suction effect and reduce energy consumption, in this example, assuming that the arc length of the slotted suction port 304 is L1 and the circumference of the suction pipe 302 is L2, then the arc length of the slotted suction port 304 is 1 / 4 to 1 / 2 times (L1 / L2) of the circumference of the suction pipe 302. Specifically, in this example, the preferred ratio is 1 / 3.

[0028] Example 3: Based on Example 1 or Example 2, such as... Figure 6 As shown, extension ports 305 connected to the grooved suction port 304 are provided on both sides of the bottom of the suction pipe 302. Since the extension ports 305 are located inside the suction pipe 302, the airflow distribution can be enhanced and the suction dead angle inside the suction pipe 302 can be reduced, thereby improving the suction efficiency.

[0029] Example 4: An intervening arc-shaped plate is formed between two adjacent slotted dust collection ports 304. Based on the above examples, such as... Figure 7 As shown, a fixing block 401 is fixed on the top of the spacer arc plate. Both sides of the fixing block 401 are formed with inclined surfaces 402. The angle formed by the two inclined surfaces 402 on the top of the fixing block 401 is 30-60°. In this solution, the preferred angle is 45°. In this way, the dust and gas on both sides of the slot-type dust suction port 304 will move upward along the inclined surfaces 402, reducing some dust adhesion or accumulation on the top inner wall of the suction pipe 302, further reducing the adsorption dead angle and improving the adsorption efficiency.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A dusting tube for exhibition bags, comprising a support (303) fixed to an exhibition bag tool (1), characterized in that: The side of the support (303) is fixed with a connecting pipe (301), the bottom of the connecting pipe (301) is fixedly communicated with a dust suction pipe (302), the dust suction pipe (302) is longitudinally arranged at the top of the bag opening device (1), and the dust suction pipe (302) is parallel to the moving direction of the packaging bag. The bottom of the dust suction pipe (302) is provided with a plurality of slot dust suction ports (304), and the dust generated when the bag opening is flattened enters the dust suction pipe (302) through the slot dust suction ports (304).

2. A bag unrolling and dusting pipe according to claim 1, characterized in that: The slot dust suction ports (304) are equidistantly distributed on the bottom of the dust suction pipe (302).

3. The bag display dusting wand of claim 1, wherein: The arc length of the slot dust suction port (304) is 1 / 4-1 / 2 times the circumference of the dust suction pipe (302).

4. The bag display dusting wand of claim 1, wherein: The bottom of the dust suction pipe (302) is provided with an extension port (305) on both sides, which is communicated with the slot dust suction port (304).

5. The bag display dusting wand of claim 1, wherein: The two adjacent slot dust suction ports (304) form a spacing arc-shaped plate, the top of the spacing arc-shaped plate is fixed with a fixed block (401), and the two sides of the fixed block (401) are both formed with an inclined surface (402).

6. A bag unrolling and dusting pipe according to claim 5, characterized in that: The angle formed by the two inclined surfaces (402) at the top of the fixed block (401) is 30-60°.

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