Air exhaust structure of packaging machine

Abstract

The utility model discloses an air exhaust structure of a packaging machine, and relates to the technical field of product packaging, in particular to the air exhaust structure of the packaging machine, which comprises a vacuum pump body, noise reduction components are arranged at an input port and an output port of the vacuum pump body, and the input end of the noise reduction component connected with the input port of the vacuum pump body is in threaded connection with a communicating pipe. The top end of the communicating pipe is fixedly connected with a filtering assembly, the filtering assembly comprises a lower barrel fixedly mounted at the top of the communicating pipe, and an upper barrel is arranged at the top of the lower barrel. According to the air exhaust structure of the packaging machine, the filtering assembly is arranged, when the vacuum pump body is used for exhausting air, air firstly passes through the filtering assembly, particulate matter in the air is filtered through a filtering net in the filtering assembly, and the situation that the vacuum pump body is damaged by the particulate matter can be avoided; the spiral blades spirally distributed outside the filter screen can drive the filter screen to rotate in the air inlet process, so that filtered particles are thrown out under the action of centrifugal force.

Description

Technical Field

[0001] The utility model relates to the technical field of product packaging, in particular to an air extraction structure of a packaging machine. Background Art

[0002] The vacuum packaging machine can automatically extract the air in the packaging bag and complete the sealing process after reaching a predetermined vacuum degree. It can also be filled with nitrogen or other mixed gases to complete the sealing process. Vacuum packaging machines are often used in the food industry because after vacuum packaging, the food can resist oxidation and achieve the purpose of long-term preservation. The vacuum packaging machine needs to perform a vacuum operation during the packaging process, and the vacuum structure of the packaging machine is needed at this time.

[0003] For example, patent publication number CN216916444U proposes a vacuum device for a packaging machine, including a vacuum equipment box, a vacuum outer tube and an open-mouth suction plate, a second support rod is arranged on one side wall of the vacuum equipment box, a second electric push rod is arranged at one end of the second support rod, the vacuum outer tube is arranged at the bottom of the second electric push rod, and the open-mouth suction plate is arranged on both sides directly below the vacuum outer tube. By designing a new vacuum nozzle consisting of a vacuum outer tube, a movable plug, a suction hole, a third electric push rod and a push-pull adjustment inner tube, packaging bags of different sealing sizes can be flexibly matched.

[0004] This technical solution has the following deficiencies in actual use: First, some particulate matter is sometimes inhaled during the vacuum process. After being inhaled into the vacuum pump, these particulate matter is likely to damage the vacuum pump and reduce the power of the vacuum pump, which will shorten the service life of the packaging machine. Second, the noise generated during the vacuum process is loud, which is likely to cause noise pollution and affect the hearing health of the staff. For this reason, we provide a packaging machine vacuum structure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an air extraction structure for a packaging machine, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a packaging machine vacuum structure, including a vacuum pump body, the input port and the output port of the vacuum pump body are both installed with a silencer assembly, wherein the input end of the silencer assembly connected to the input port of the vacuum pump body is threadedly connected with a connecting pipe, the top of the connecting pipe is fixedly connected with a filter assembly, the filter assembly includes a lower cylinder fixedly installed on the top of the connecting pipe, the top of the lower cylinder is provided with an upper cylinder, the interior of the lower cylinder is fixedly connected with a raised tube, the exterior of the raised tube is fixedly sleeved with a bearing member, and the top of the bearing member is fixedly installed with a filter screen.

[0007] Optionally, the silencer assembly includes a stainless steel shell, which is fixedly connected to the input port or output port of the vacuum pump body. An air inlet is provided at one end of the stainless steel shell away from the vacuum pump body. A first isolation net is fixedly connected to the interior of the air inlet, and the first isolation net is a barrel-shaped structure with a bottom.

[0008] Optionally, a second isolation net is fixedly installed inside the stainless steel shell, the second isolation net is a bottomless barrel structure, and sound-absorbing cotton is arranged between the second isolation net and the stainless steel shell.

[0009] Optionally, a wing plate is fixedly connected to the side of the connecting pipe, and a connecting bolt is movably sleeved inside the wing plate, and the connecting pipe is connected to the air inlet via the connecting bolts.

[0010] Optionally, the bottom of the raised tube is connected to the top of the connecting tube, and an impurity collecting groove is formed between the raised tube and the lower cylinder.

[0011] Optionally, the filter screen has a conical structure, and a spiral blade is fixedly connected to the outside of the filter screen, and the spiral blade has a spiral structure.

[0012] Optionally, a debris removal port is provided on the side of the lower cylinder, and a sealing cover is sleeved on the external thread of the debris removal port.

[0013] Optionally, the lower cylinder and the upper cylinder are fixed by threaded fixing bolts, and an air intake port is provided at the top of the upper cylinder.

[0014] The utility model provides an air extraction structure for a packaging machine, which has the following beneficial effects:

[0015] 1. The vacuum structure of the packaging machine is provided with a filter assembly. When the vacuum pump body is evacuated, the gas first passes through the filter assembly, and the filter net in the filter assembly is used to filter the particles in the air, which can prevent the particles from causing damage to the vacuum pump body. At the same time, the filter net is a conical structure, and the spiral leaves on the outside of the filter net can drive the filter net to rotate during the air intake process, so that the filtered particles are thrown outward and fall into the lower cylinder under the action of centrifugal force, avoiding the particles from being blocked on the surface of the filter net, which is conducive to keeping the filter net unobstructed.

[0016] 2. The vacuum structure of the packaging machine is provided with silencer components at the input and output ports of the vacuum pump body. Small holes are provided on the surfaces of the first isolation net and the second isolation net. When air passes through the first isolation net and the second isolation net, the small holes on the surfaces of the first isolation net and the second isolation net can play the role of silencer. At the same time, the sound-absorbing cotton can absorb sound and reduce the noise generated when the vacuum pump body is in and out of the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the disassembled silencer assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cross-section of the silencer assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0021] Figure 5 It is a schematic structural diagram of a cross-section of the filter assembly of the utility model.

[0022] In the figure: 1. vacuum pump body; 2. silencer assembly; 21. stainless steel shell; 22. air inlet; 23. first isolation net; 24. second isolation net; 25. sound-absorbing cotton; 3. connecting pipe; 31. wing plate; 4. filter assembly; 41. lower cylinder; 42. upper cylinder; 43. raised pipe; 44. bearing; 45. filter net; 46. spiral blade; 47. impurity removal port; 48. sealing cover; 49. air inlet; 5. connecting bolt; 6. fixing bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figures 1 to 3The utility model provides a technical solution: a packaging machine vacuum structure, including a vacuum pump body 1, the input port and the output port of the vacuum pump body 1 are both equipped with a silencer assembly 2, by arranging the silencer assembly 2 at the input port and the output port of the vacuum pump body 1, the silencer assembly 2 can absorb the inlet and outlet air, and reduce the noise generated when the vacuum pump body 1 is inlet and outlet, the silencer assembly 2 includes a stainless steel shell 21, the stainless steel shell 21 is fixedly connected to the input port or the output port of the vacuum pump body 1, an air inlet 22 is opened at one end of the stainless steel shell 21 away from the vacuum pump body 1, the air inlet 22 is fixedly connected to the inside of the air inlet 22 with a first isolation net 23, the first isolation net 23 It is a bottomed barrel-shaped structure. By setting a first isolation net 23, small holes are set on the surface of the first isolation net 23. When air passes through the first isolation net 23, the small holes on the surface of the first isolation net 23 can play the role of small hole silencing, thereby reducing the generation of noise. A second isolation net 24 is fixedly installed inside the stainless steel shell 21. The second isolation net 24 is a bottomless barrel-shaped structure. Sound-absorbing cotton 25 is set between the second isolation net 24 and the stainless steel shell 21. By setting the sound-absorbing cotton 25, air passes through the second isolation net 24 and enters the gap between the second isolation net 24 and the stainless steel shell 21, and the sound-absorbing cotton 25 is used to absorb sound, thereby further reducing noise.

[0025] See also Figure 1 , Figure 4 The input end of the silencer assembly 2 connected to the input port of the vacuum pump body 1 is threadedly connected with a connecting pipe 3, a wing plate 31 is fixedly connected to the side of the connecting pipe 3, and a connecting bolt 5 is movably sleeved inside the wing plate 31. The connecting pipe 3 is connected to the air inlet 22 through the connecting bolt 5. By fixing the connecting pipe 3 with the connecting bolt 5, the connecting pipe 3 can be prevented from rotating. The top of the connecting pipe 3 is fixedly connected with a filter assembly 4. The filter assembly 4 includes a lower cylinder 41 fixedly installed on the top of the connecting pipe 3, an upper cylinder 42 is arranged on the top of the lower cylinder 41, and a protruding pipe 43 is fixedly connected to the inside of the lower cylinder 41. The protruding pipe 43 The bottom is connected to the top of the connecting pipe 3, and an impurity collecting groove is formed between the protruding tube 43 and the lower cylinder 41. By setting the impurity collecting groove, impurities filtered by the filter screen 45 can fall into the impurity collecting groove to avoid clogging of the filter screen 45. The outer fixed sleeve of the protruding tube 43 is provided with a bearing member 44, and the top of the bearing member 44 is fixedly installed with a filter screen 45. The filter screen 45 has a conical structure. By setting the filter screen 45, the filter screen 45 in the filter assembly 4 is used to filter the particulate matter in the air, which can prevent the particulate matter from causing damage to the vacuum pump body 1. At the same time, the filter screen 45 has a conical structure, which is conducive to the falling of impurities.

[0026] See also Figures 4 to 5The outside of the filter screen 45 is fixedly connected with a spiral blade 46, and the spiral blade 46 has a spiral structure. By setting the spiral blade 46, the spirally distributed spiral blade 46 can drive the filter screen 45 to rotate during the air intake process, so that the filtered particles are thrown outward under the action of centrifugal force and fall into the lower cylinder 41, so as to avoid the particles being blocked on the surface of the filter screen 45. A dust removal port 47 is provided on the side of the lower cylinder 41, and a sealing cover 48 is threadedly sleeved on the outside of the dust removal port 47. By setting the dust removal port 47, when there are more impurities in the impurity collecting tank, the sealing cover 48 is opened, and the impurities can be taken out of the lower cylinder 41 from the dust removal port 47. The lower cylinder 41 and the upper cylinder 42 are fixed by threaded fixing bolts 6, and an air intake port 49 is provided on the top of the upper cylinder 42.

[0027] In summary, when the packaging machine's exhaust structure is in use, air enters the filter assembly 4 from the air inlet 49, and the filter screen 45 is used to filter the particulate matter in the air. The filtered particulate matter slides along the filter screen 45 into the lower cylinder 41, and at the same time, the air will blow the spiral leaves 46 outside the filter screen 45, causing the filter screen 45 to rotate continuously, thereby generating centrifugal force to throw out the particulate matter, and the surface particulate matter blocks the filter screen 45. Then, the air enters the silencer assembly 2 through the connecting pipe 3, and then the air passes through the small holes on the surface of the first isolation net 23, which plays the role of small hole silencer. The air inside the stainless steel shell 21 can pass through the second isolation net 24 and enter the sound-absorbing cotton 25. The sound-absorbing cotton 25 can play a role in sound absorption and reduce the impact of noise.

[0028] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging machine exhaust structure, comprising a vacuum pump body (1), characterized in that: The input port and the output port of the vacuum pump body (1) are both installed with a silencer assembly (2), wherein the input end of the silencer assembly (2) connected to the input port of the vacuum pump body (1) is threadedly connected to a connecting pipe (3), the top of the connecting pipe (3) is fixedly connected to a filter assembly (4), the filter assembly (4) comprises a lower cylinder (41) fixedly installed on the top of the connecting pipe (3), an upper cylinder (42) is arranged on the top of the lower cylinder (41), a raised tube (43) is fixedly connected to the interior of the lower cylinder (41), a bearing member (44) is fixedly sleeved on the exterior of the raised tube (43), and a filter screen (45) is fixedly installed on the top of the bearing member (44).

2. The air extraction structure of a packaging machine according to claim 1, characterized in that: The silencer assembly (2) comprises a stainless steel shell (21), the stainless steel shell (21) being fixedly connected to an input port or an output port of a vacuum pump body (1), an air inlet (22) being provided at one end of the stainless steel shell (21) away from the vacuum pump body (1), a first isolation net (23) being fixedly connected to the interior of the air inlet (22), the first isolation net (23) being a bottomed barrel-shaped structure.

3. The air extraction structure of a packaging machine according to claim 2, characterized in that: A second isolation net (24) is fixedly installed inside the stainless steel shell (21); the second isolation net (24) is a bottomless barrel-shaped structure; and sound-absorbing cotton (25) is arranged between the second isolation net (24) and the stainless steel shell (21).

4. The air extraction structure of a packaging machine according to claim 2, characterized in that: A wing plate (31) is fixedly connected to the side of the connecting pipe (3), a connecting bolt (5) is movably sleeved inside the wing plate (31), and the connecting pipe (3) is connected to the air inlet (22) via the connecting bolt (5).

5. The air extraction structure of a packaging machine according to claim 1, characterized in that: The bottom of the protruding tube (43) is connected to the top of the connecting tube (3), and an impurity collecting groove is formed between the protruding tube (43) and the lower cylinder (41).

6. The air extraction structure of a packaging machine according to claim 1, characterized in that: The filter screen (45) has a conical structure, and a spiral blade (46) is fixedly connected to the outside of the filter screen (45), and the spiral blade (46) has a spiral structure.

7. The air extraction structure of a packaging machine according to claim 1, characterized in that: The side surface of the lower cylinder (41) is provided with a debris removal opening (47), and the external thread of the debris removal opening (47) is sleeved with a sealing cover (48).

8. The air extraction structure of a packaging machine according to claim 1, characterized in that: The lower cylinder (41) and the upper cylinder (42) are fixed by means of threaded fixing bolts (6), and an air intake port (49) is provided at the top of the upper cylinder (42).

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