A bag mouth suction negative pressure nozzle for a packaging machine

Abstract

The utility model provides a kind of packaging machine bag mouth suction negative pressure nozzle, it is related to traditional chinese medicine granule packaging equipment field, including negative pressure nozzle body;The upper and lower ends of the negative pressure nozzle body are slidably connected with telescopic air nozzle in the middle, the top of the negative pressure nozzle body is symmetrically installed with air cylinder in left and right sides, the bottom of the left and right side walls of the negative pressure nozzle body is symmetrically inserted with filter assembly, the outside of filter assembly is equipped with sealing block;The sliding groove of the packaging machine bag mouth suction negative pressure nozzle provides stable basis for air cylinder, ensure that it can accurately drive telescopic air nozzle to lift, easily adapt to packaging machine bag mouth of different height, improve equipment versatility, negative pressure suction groove is communicated with negative pressure pipe to form efficient negative pressure channel, can quickly suck and remove bag mouth residual residue, guarantee packaging sealing effect, to solve the problem of lack of orientation limit, offset adaptation difference, no efficient channel, suck and remove difference powder leakage, no gas dispersion, residue cleaning affects quality.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging equipment for traditional Chinese medicine granules, and in particular to a negative pressure suction nozzle for a packaging machine bag opening. Background Technology

[0002] In the production and packaging process of traditional Chinese medicine granules, the packaging machine needs to fill the granules into packaging bags in a quantitative manner and then seal them. Since the granules are prone to generating dust during the filling process, some of the dust will adhere to the inside or outside of the packaging bag opening. If it is not removed in time, it will lead to the packaging bag not being sealed tightly, resulting in powder leakage, which will affect the storage quality and shelf life of the granules. The negative pressure nozzles at the bag openings of existing packaging machines lack effective guiding and limiting structures. They are prone to deviation during sliding, resulting in insufficient lifting accuracy. They are difficult to adapt to packaging bag openings of different heights and have not formed an efficient channel. They cannot quickly remove residual residue and attached traditional Chinese medicine dust from the bag opening, which can easily lead to poor sealing and powder leakage. They also lack structures that can guide gas dispersion, making it difficult to efficiently clean the residue of traditional Chinese medicine granules at the bag opening. The residue further affects the packaging quality. Utility Model Content

[0003] This utility model relates to a negative pressure suction nozzle for bag openings in packaging machines, which solves the problems mentioned in the background art regarding existing negative pressure nozzles for bag openings in packaging machines. These problems include the lack of an effective guiding and limiting structure, easy slippage and deviation, poor lifting accuracy, difficulty in adapting to bag openings of different heights, lack of efficient channels, difficulty in quickly suctioning residual residue and Chinese medicine dust from the bag opening, easy poor sealing and powder leakage, lack of gas dispersion structure, difficulty in cleaning residual Chinese medicine particles from the bag opening, and residue adhesion affecting packaging quality.

[0004] This utility model provides a negative pressure suction nozzle for a packaging machine bag opening, specifically including: a negative pressure nozzle body; a telescopic air nozzle is slidably connected through the middle of the upper and lower ends of the negative pressure nozzle body, cylinders are symmetrically installed on the left and right sides of the top of the negative pressure nozzle body, filter components are symmetrically inserted into the bottom of the left and right side walls of the negative pressure nozzle body, and a sealing block is provided on the outside of the filter component.

[0005] Furthermore, a through guide groove is provided in the middle of the upper and lower end faces of the negative pressure nozzle body, and a limit groove is symmetrically provided in the front and rear side walls of the guide groove. A sliding groove is provided inside the negative pressure nozzle body on the left and right sides of the guide groove, and a cylinder is fixedly installed on the top outer end face of the sliding groove.

[0006] Furthermore, negative pressure pipes are symmetrically installed on the bottom of the left and right side walls of the negative pressure nozzle body, and negative pressure suction grooves are symmetrically opened at the bottom of the sliding groove of the negative pressure nozzle body. The top outer side of the negative pressure suction groove is connected to the negative pressure pipe. Replacement slots are opened in the side walls of the two negative pressure pipes. A filter assembly is installed in the negative pressure pipe inside the replacement slot. Fixing hooks are symmetrically installed on the side wall of the opening side of the replacement slot.

[0007] Furthermore, the telescopic nozzle is slidably connected in the guide groove of the negative pressure nozzle body. The front and rear outer side walls of the telescopic nozzle are symmetrically provided with limiting sliders, which are slidably connected in the limiting groove of the guide groove side wall. Control plates are symmetrically installed on the top of the left and right side walls of the telescopic nozzle. The top middle of the control plate is connected to the telescopic end of the bottom of the cylinder. An inner guide block is fixedly installed on the inner side of the bottom of the telescopic nozzle. The left and right side walls of the inner guide block are arc-shaped.

[0008] Furthermore, the filter assembly includes a filter cylinder and a plug-in mesh plate. The bottom of the filter cylinder is open on the side facing the negative pressure nozzle body. An inclined filter mesh plate is provided in the middle of the inside of the filter cylinder. A plug-in groove is provided on the top of the outer wall of the filter cylinder.

[0009] Furthermore, the sealing block is inserted into the replacement slot of the negative pressure nozzle body. The outer side wall of the sealing block is symmetrically provided with sealing gaskets. The sealing block is symmetrically provided with fixing hooks at the middle of the outer side wall of the replacement slot. The fixing hooks and the fixing hooks on the outside of the replacement slot are in corresponding positions and are inserted with fixing plates. The bottom end face of the fixing plate is provided with three slots at equal intervals.

[0010] This utility model provides a negative pressure suction nozzle for bag openings in a packaging machine, which has the following beneficial effects: 1. The guide groove and the limiting groove work together to provide stable sliding for the telescopic nozzle, effectively avoiding sliding deviation. The sliding groove provides a stable foundation for the cylinder, ensuring that it can accurately drive the telescopic nozzle to rise and fall. It can easily adapt to the bag openings of packaging machines of different heights, improving the versatility of the equipment. The negative pressure suction groove and the negative pressure pipe are connected to form an efficient negative pressure channel, which can quickly suck out residual residue at the bag opening and ensure the sealing effect of the packaging. The combination design of the replacement groove and the fixing hook can not only realize the quick disassembly and assembly of the filter component, but also firmly fix the filter component to prevent displacement during operation.

[0011] 2. The limiting slider and limiting groove of the telescopic nozzle cooperate to further limit the sliding trajectory, avoid back and forth swaying during lifting and lowering, and improve the alignment accuracy with the bag opening. The control board can evenly transmit the telescopic force of the cylinder, ensuring that the telescopic nozzle moves smoothly and responds quickly, adapting to the opening and closing rhythm of the packaging machine's bag opening. The arc-shaped sidewall of the inner guide block can also guide the gas to disperse to both sides, effectively cleaning the bag opening of particulate residue and reducing the impact of residue adhesion on packaging quality. The inclined filter plate of the filter component increases the airflow contact area, which can effectively intercept large particulate impurities and prevent the negative pressure pipe from clogging. The adsorption filter material can filter fine impurities and odors, ensuring the cleanliness of the negative pressure system and extending the service life of the equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0013] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This utility model Figure 2 A magnified structural diagram at point A; Figure 4 This is a cross-sectional view of the negative pressure nozzle body of this utility model; Figure 5 This is a schematic diagram of the bottom cross-sectional structure of the telescopic air nozzle of this utility model; Figure 6 This is a cross-sectional view of the filter assembly of this utility model.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Negative pressure nozzle body; 101. Guide slide groove; 102. Limit slide groove; 103. Sliding groove; 104. Negative pressure suction groove; 105. Negative pressure pipe; 106. Replacement slot; 107. Fixing hook; 2. Telescopic nozzle; 201. Limit slider; 202. Control board; 203. Inner guide block; 3. Cylinder; 4. Filter cylinder; 401. Filter screen; 402. Insertion groove; 5. Insertion screen; 6. Sealing block; 601. Sealing gasket; 602. Fixing hook; 7. Fixing plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a negative pressure suction nozzle for a packaging machine, comprising: a negative pressure nozzle body 1, a telescopic nozzle 2 slidably connected through the middle of the upper and lower ends of the negative pressure nozzle body 1, cylinders 3 symmetrically installed on the left and right sides of the top of the negative pressure nozzle body 1, filter components symmetrically inserted into the bottom of the left and right side walls of the negative pressure nozzle body 1, sealing blocks 6 provided on the outer side of the filter components, a through guide groove 101 opened in the middle of the upper and lower end faces of the negative pressure nozzle body 1, limit grooves 102 symmetrically opened in the front and rear side walls of the guide groove 101, sliding grooves 103 opened inside the negative pressure nozzle body 1 on the left and right sides of the guide groove 101, cylinders 3 fixedly installed on the top outer end face of the sliding groove 103, negative pressure pipes 105 symmetrically installed on the bottom of the left and right side walls of the negative pressure nozzle body 1, negative pressure suction grooves 104 symmetrically opened at the bottom of the sliding grooves 103 of the negative pressure nozzle body 1, and the top outer side of the negative pressure suction grooves 104 and the negative pressure pipes 105... The two negative pressure pipes 105 are connected and have replacement slots 106 in their adjacent side walls. A filter assembly is installed in the negative pressure pipe 105 inside the replacement slot 106. Fixing hooks 107 are symmetrically installed on the side wall of the opening side of the replacement slot 106. Specifically, through the cooperation of the guide slide 101 and the limiting slide 102, the telescopic nozzle 2 is provided with stable sliding guidance and limitation to prevent it from deviating during sliding. The sliding groove 103 provides support for the cylinder 3 to stably drive the telescopic nozzle 2 to rise and fall, adapting to the bag openings of packaging machines of different heights. The negative pressure suction groove 104 is connected to the negative pressure pipe 105 to form a negative pressure channel, realizing the efficient removal of residual residue from the bag opening. The replacement slot 106 and the fixing hooks 107 cooperate to facilitate the quick installation and removal of the filter assembly and ensure the positional stability of the filter assembly during operation. The overall structural design makes the negative pressure nozzle have both high-efficiency suction performance and convenient maintenance, adapting to the continuous operation requirements of the packaging machine.

[0018] The telescopic nozzle 2 is slidably connected to the guide groove 101 of the negative pressure nozzle body 1. Limiting sliders 201 are symmetrically provided on the front and rear outer side walls of the telescopic nozzle 2. The limiting sliders 201 are slidably connected to the limiting grooves 102 on the side walls of the guide groove 101. Control plates 202 are symmetrically installed on the top of the left and right side walls of the telescopic nozzle 2. The top center of the control plate 202 is connected to the telescopic end of the bottom of the cylinder 3. An inner guide block 203 is fixedly installed on the inner side of the bottom of the telescopic nozzle 2. The left and right side walls of the inner guide block 203 are arc-shaped. Specifically, the limiting slider 201 and the limiting... The sliding fit of the slide groove 102 can further limit the sliding trajectory of the telescopic nozzle 2, prevent it from wobbling back and forth during the lifting and lowering process, and improve the alignment accuracy when blowing air. The control plate 202, as the connection medium between the cylinder 3 and the telescopic nozzle 2, can evenly transmit the extension force of the cylinder 3 to the telescopic nozzle 2, ensuring that the lifting and lowering action of the telescopic nozzle 2 is smooth and responsive, and can quickly adapt to the opening and closing rhythm of the bag mouth of the packaging machine. The arc-shaped side wall design of the inner guide block 203 facilitates the rapid dispersion of gas to both sides, so as to better blow away the particle residue at the bag mouth and reduce the adhesion of particle residue.

[0019] The filter assembly includes a filter cylinder 4 and a connecting mesh plate 5. The bottom of the filter cylinder 4 is open on the side facing the negative pressure nozzle body 1. An inclined filter mesh plate 401 is provided in the middle of the interior of the filter cylinder 4. A connecting groove 402 is provided on the top of the outer wall of the filter cylinder 4, and the connecting mesh plate 5 is inserted into the connecting groove 402. Adsorption filter material is filled between the connecting mesh plate 5 and the filter mesh plate 401. Specifically, the bottom opening of the filter cylinder 4 can be precisely connected with the negative pressure suction groove 104 to ensure that the suctioned airflow can completely enter the filter assembly and prevent air from being trapped inside. The bypass and the angled filter plate 401 increase the contact area with the airflow, initially intercepting large particles of impurities in the airflow to prevent them from entering the negative pressure pipe 105 and causing blockage. At the same time, the angled structure facilitates the accumulation of impurities at the bottom of the filter cylinder 4 under the action of gravity, reducing the obstruction of airflow by impurities. The insertion groove 402 and the insertion screen plate 5 are connected to each other, which facilitates quick disassembly of the insertion screen plate 5 to replace the internal adsorption filter material. The adsorption filter material can further filter fine impurities and odors in the airflow, ensuring the cleanliness of the internal negative pressure system.

[0020] The sealing block 6 is inserted into the replacement slot 106 of the negative pressure nozzle body 1. A sealing gasket 601 is symmetrically arranged on the outer wall of the sealing block 6. A fixing hook 602 is symmetrically arranged at the middle of the outer wall of the sealing block 6 in the replacement slot 106. The fixing hook 602 corresponds to the fixing hook 107 on the outer side of the replacement slot 106 and is inserted into a fixing plate 7. Three slots are equidistantly opened on the bottom end face of the fixing plate 7. Specifically, the sealing gasket 601 fills the gap between the sealing block 6 and the replacement slot 106, effectively preventing gas leakage during operation of the negative pressure system and ensuring the connection between the negative pressure extraction slot 104 and the negative pressure pipe. The negative pressure stability within 105 prevents insufficient negative pressure from affecting the gas suction effect at the bag opening. The connection between the fixing hook 602 and the fixing hook 107 via the fixing plate 7 securely fixes the sealing block 6 to the replacement slot 106, preventing the sealing block 6 from loosening and falling off due to vibration during operation of the negative pressure nozzle. The three slots at the bottom of the fixing plate 7 facilitate quick alignment of the fixing hook 107 and the fixing hook 602 for installation, and also enhance the fixing stability through multi-point engagement. Furthermore, during disassembly, simply pull the fixing plate 7 upwards to separate the fixing hook 107 and the fixing hook 602, making the disassembly of the sealing block 6 more convenient.

[0021] The specific usage and function of this embodiment are as follows: When using the negative pressure nozzle of the packaging machine to remove bag openings, the cylinder 3 at the top of the negative pressure nozzle body 1 is activated according to the height of the bag opening. The cylinder 3 pushes the control plate 202 through the telescopic end, causing the telescopic nozzle 2 to slide along the guide groove 101, so that the inner guide block 203 at the bottom of the telescopic nozzle 2 is adapted to the position of the bag opening. If it is necessary to clean the bag opening particles, the gas can be guided to both sides through the arc surface of the inner guide block 203 to achieve blowing. At the same time, the negative pressure pipe 105 is connected to the negative pressure suction groove 104 to form a negative pressure channel, which efficiently removes the residual residue at the bag opening. During the suction process, the filter screen plate 401 of the filter component intercepts large particles of impurities and the adsorption filter material filters out fine impurities and odors, ensuring the cleanliness of the negative pressure system. When maintenance is required, pull out the fixing plate 7 upwards, separate the fixing hook 602 and the fixing hook 107, remove the sealing block 6, take out the filter component through the replacement groove 106, disassemble the plug-in screen plate 5, replace the adsorption filter material, and reinstall it according to the original assembly method to restore use.

[0022] Example 2: An electromagnetic regulating valve is connected in series in the middle section of the negative pressure pipe 105. A pressure sensor is fixed on the top outer wall of the negative pressure nozzle body 1. The detection end of the pressure sensor is connected to the inside of the negative pressure suction groove 104. Both the electromagnetic regulating valve and the pressure sensor are connected to the control system of the packaging machine through wires. The pressure sensor monitors the negative pressure value in the negative pressure suction groove 104 in real time. The control system automatically adjusts the opening of the electromagnetic regulating valve according to the preset threshold to achieve precise control of the negative pressure intensity. This avoids the accidental aspiration of Chinese medicine granules due to excessive negative pressure or the inability to completely remove dust due to insufficient negative pressure, thereby improving the adaptability of the equipment to different types of Chinese medicine granules and reducing material waste.

Claims

1. A negative pressure suction nozzle for bag opening in a packaging machine, characterized in that, Includes a negative pressure nozzle body (1); a telescopic nozzle (2) is slidably connected through the middle of the upper and lower ends of the negative pressure nozzle body (1); cylinders (3) are symmetrically installed on the left and right sides of the top of the negative pressure nozzle body (1); filter components are symmetrically inserted into the bottom of the left and right side walls of the negative pressure nozzle body (1); and a sealing block (6) is provided on the outside of the filter components.

2. The negative pressure suction nozzle for a packaging machine bag opening according to claim 1, characterized in that, A through guide groove (101) is provided in the middle of the upper and lower end faces of the negative pressure nozzle body (1). A limit groove (102) is symmetrically provided in the front and rear side walls of the guide groove (101). A sliding groove (103) is provided inside the negative pressure nozzle body (1) on the left and right sides of the guide groove (101). A cylinder (3) is fixedly installed on the top outer end face of the sliding groove (103).

3. The negative pressure suction nozzle for a packaging machine bag opening according to claim 1, characterized in that, Negative pressure pipes (105) are symmetrically installed on the bottom of the left and right side walls of the negative pressure nozzle body (1). Negative pressure suction grooves (104) are symmetrically opened at the bottom of the sliding groove (103) of the negative pressure nozzle body (1). The top outer side of the negative pressure suction groove (104) is connected to the negative pressure pipe (105). A replacement slot (106) is opened in the side wall of the two negative pressure pipes (105). A filter assembly is installed in the negative pressure pipe (105) inside the replacement slot (106). Fixing hooks (107) are symmetrically installed on the side wall of the opening side of the replacement slot (106).

4. The negative pressure suction nozzle for a packaging machine bag opening according to claim 1, characterized in that, The telescopic nozzle (2) is slidably connected in the guide groove (101) of the negative pressure nozzle body (1). The front and rear outer side walls of the telescopic nozzle (2) are symmetrically provided with limiting sliders (201). The limiting sliders (201) are slidably connected in the limiting groove (102) of the side wall of the guide groove (101). The top of the left and right side walls of the telescopic nozzle (2) are symmetrically installed with control plates (202). The top middle of the control plate (202) is connected to the telescopic end of the bottom of the cylinder (3). The inner guide block (203) is fixedly installed on the inner side of the bottom of the telescopic nozzle (2). The left and right side walls of the inner guide block (203) are arc-shaped.

5. The negative pressure suction nozzle for a packaging machine bag opening according to claim 1, characterized in that, The filter assembly includes a filter cylinder (4) and a plug-in mesh plate (5). The bottom of the filter cylinder (4) is open on the side facing the negative pressure nozzle body (1). An inclined filter mesh plate (401) is provided in the middle of the inside of the filter cylinder (4). A plug-in groove (402) is provided on the top of the outer wall of the filter cylinder (4). The plug-in mesh plate (5) is inserted into the plug-in groove (402).

6. The negative pressure suction nozzle for a packaging machine bag opening according to claim 1, characterized in that, The sealing block (6) is inserted into the replacement slot (106) of the negative pressure nozzle body (1). The sealing block (6) is symmetrically provided with sealing gaskets (601) on the outer side wall. The sealing block (6) is symmetrically provided with fixing hooks (602) at the middle of the outer side wall of the replacement slot (106). The fixing hooks (602) and the fixing hooks (107) on the outer side of the replacement slot (106) are in corresponding positions and are connected with fixing plates (7). The bottom end face of the fixing plate (7) is provided with three slots at equal intervals.

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