An inflation sealing device for a nitrogen packaging machine and a method of using the same

Abstract

An inflation sealing device of a nitrogen packaging machine and a method of using the same belong to the field of food packaging. It includes a top plate, a side plate I and a side plate II; the lower end of the top plate is fixedly connected with two side plates I and two side plates II, and the side plates I, II and the top plate together form a working chamber; the lower end of the side plate I is provided with a groove, and a cleaning device I is provided in the groove; the outer side surface of the side plate II is set as an inclined surface, and a slide groove and a cleaning device II that slides with the slide groove are provided on the inclined surface. The present invention can not only clean foreign matter on the conveyor belt to prevent the gap between the side wall of the working chamber and the conveyor belt or the conveyor belt from being damaged, but also rollers are provided at the bottom ends of the cleaning plates I and II to further prevent the conveyor belt from being scratched by foreign matter in the process of pushing foreign matter on the conveyor belt.

Description

Technical Field

[0001] The invention relates to an inflation and sealing device of a nitrogen packaging machine and a use method thereof, belonging to the field of food packaging. Background Art

[0002] During the food packaging process, the packaging bag is evacuated and then filled with nitrogen, which can effectively extend the shelf life of the food. There are many common packaging machines on the market. One of them is to place the food packaging bag on the conveyor belt, move the food to the processing position through the conveyor belt, close the conveyor belt, and then control the working chamber to move downward by the hydraulic cylinder, close to the conveyor belt, and wrap the food in the working chamber, and then evacuate the working chamber through the air pump above the working chamber, and then use the nitrogen inflation system to fill nitrogen into the working chamber, and finally complete the food sealing through the heat sealing system. This packaging machine can operate continuously and has higher efficiency than other packaging machines when in use, but in actual use, there must be no foreign matter on the conveyor belt. If the side wall of the working chamber just presses on the foreign matter, the working chamber will be incompletely sealed, resulting in residual oxygen in the food packaging bag after it is sealed, which affects the shelf life of the food, or the side wall of the working chamber contacts the foreign matter and presses the foreign matter into the conveyor belt, damaging the surface of the conveyor belt and affecting the service life of the equipment. Therefore, it is necessary to improve it. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems existing in the background technology and to provide an inflation and sealing device of a nitrogen packaging machine and a method of using the same.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] An inflation and sealing device for a nitrogen packaging machine comprises a top plate, a side plate I and a side plate II; the lower end of the top plate is fixedly connected to two side plates I and two side plates II, and the side plates I, II and the top plate together form a working chamber; the lower end of the side plate I is provided with a groove, and a cleaning device I is provided in the groove; the outer side surface of the side plate II is set as an inclined surface, and a slide groove and a cleaning device II slidably matched with the slide groove are provided on the inclined surface.

[0006] A method for using an inflation and sealing device of a nitrogen packaging machine, the method comprising the following steps:

[0007] Step 1: The hydraulic cylinder on the upper end of the top plate drives the working chamber to move downward;

[0008] Step 2: After the cleaning plate I contacts the conveyor belt, the two cleaning plates I move toward each other during the downward movement of the side plate I, and the foreign matter on the conveyor belt is pushed between the two cleaning plates I;

[0009] Step 3: After the cleaning plate II contacts the conveyor belt, during the downward movement of the side plate II, the cleaning plate II pushes the foreign matter on the conveyor belt to the outside of the working chamber.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention can not only clean foreign objects on the conveyor belt to prevent gaps from appearing between the side wall of the working chamber and the conveyor belt or damage to the conveyor belt, but also rollers are provided at the bottom ends of the cleaning plates I and II to further prevent the conveyor belt from being scratched by foreign objects when they are pushed on the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of an inflation and sealing device of a nitrogen packaging machine of the present invention;

[0012] Figure 2 It is a structural schematic diagram of a cleaning device I of an inflation and sealing device of a nitrogen packaging machine of the present invention;

[0013] Figure 3 It is a schematic structural diagram of a contracted cleaning device I of an inflation and sealing device of a nitrogen packaging machine of the present invention;

[0014] Figure 4 It is a structural schematic diagram of a cleaning device II of an inflation and sealing device of a nitrogen packaging machine of the present invention;

[0015] Figure 5 It is a schematic structural diagram of a contracted cleaning device II of an inflation and sealing device of a nitrogen packaging machine of the present invention;

[0016] Figure 6 It is a schematic diagram of the position of a roller of an inflation and sealing device of a nitrogen packaging machine of the present invention. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described 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 invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Specific implementation method 1: Figure 1-6As shown, this embodiment records an inflation and sealing device of a nitrogen packaging machine, including a top plate 1, a side plate Ⅰ2 and a side plate Ⅱ3; the lower end of the top plate 1 is fixedly connected to two side plates Ⅰ2 and two side plates Ⅱ3, and the side plates Ⅰ2, Ⅱ3 and the top plate 1 together form a working chamber 7; the lower end of the side plate Ⅰ2 is provided with a groove 21, and a cleaning device Ⅰ4 is provided in the groove 21; the outer side surface of the side plate Ⅱ3 is set as an inclined surface, and a slide groove 31 and a cleaning device Ⅱ5 slidably matched with the slide groove 31 are provided on the inclined surface.

[0019] The cleaning device I4 comprises an elastic telescopic rod 41 fixed inside the groove 21; the lower end of the elastic telescopic rod 41 is fixedly connected to a bidirectional elastic telescopic rod 42; both ends of the bidirectional elastic telescopic rod 42 are connected to a cleaning plate I43 via a spring hinge.

[0020] The cleaning device II5 comprises a slider 51 slidably matched with the slide groove 31; a cleaning plate II52 is connected to the side of the slider 51 via a spring hinge.

[0021] The cleaning plate II 52 is configured to be V-shaped.

[0022] When the cleaning plate I43 and the cleaning plate II52 are not in contact with the conveyor belt, the height of the cleaning plate II52 is higher than that of the cleaning plate I43. The cleaning plate I43 contacts the conveyor belt first, and the cleaning plate II52 contacts the conveyor belt later. Since the cleaning plates I43 and II52 both start cleaning from the bottom of the working chamber 7, separating the two and making them contact the conveyor belt one after another can effectively avoid the two from influencing each other, resulting in a dead angle in the cleaning range below the working chamber 7; after the cleaning plate I43 contacts the conveyor belt first, as the distance between the working chamber 7 and the conveyor belt becomes closer, the angle between the two cleaning plates I43 becomes smaller. When the cleaning plate II52 contacts the conveyor belt, the bottom end of the cleaning plate I43 has been separated from the bottom of the working chamber 7, avoiding the two from influencing each other during work, resulting in a cleaning dead angle.

[0023] When the cleaning plates Ⅰ43 located in the same groove 21 are not in contact with the conveyor belt, the maximum angle between the two cleaning plates Ⅰ43 is 25-35°, so as to avoid the angle between the two cleaning plates Ⅰ43 being too large, resulting in the failure of the two cleaning plates Ⅰ43 to move toward each other through pressure during the downward movement of the side plate Ⅰ2, thereby affecting the foreign matter processing effect.

[0024] The distance between the bottom ends of the two cleaning plates Ⅰ43 is 1-2 cm larger than the width of the side plate Ⅰ2. The cleaning range of the cleaning plate Ⅰ43 is larger than the width of the side plate Ⅰ2 to avoid incomplete cleaning, which may cause foreign matter to affect the food inflation and sealing.

[0025] When the cleaning plate II 52 is not in contact with the conveyor belt, the end of the cleaning plate II 52 away from the slider 51 is located below the working chamber 7. The cleaning of the cleaning plate II 52 starts from the bottom of the working chamber 7, making the cleaning more thorough and avoiding affecting the seal between the side plate II 3 and the conveyor belt.

[0026] When the cleaning plate Ⅰ43 close to the working chamber 7 does not contact the conveyor belt, the lower end of the cleaning plate Ⅰ43 is located below the working chamber 7.

[0027] The lower ends of the cleaning plates I 43 and II 52 are connected to the roller 6 via an axis.

[0028] A method for using an inflation and sealing device of a nitrogen packaging machine, the method comprising the following steps:

[0029] Step 1: The hydraulic cylinder at the upper end of the top plate 1 drives the working chamber 7 to move downward;

[0030] Step 2: After the cleaning plate Ⅰ43 contacts the conveyor belt, the two cleaning plates Ⅰ43 move toward each other during the downward movement of the side plate Ⅰ2, and the foreign matter on the conveyor belt is pushed between the two cleaning plates Ⅰ43;

[0031] Step 3: After the cleaning plate II 52 contacts the conveyor belt, the cleaning plate II 52 pushes the foreign matter on the conveyor belt to the outside of the working chamber 7 during the downward movement of the side plate II 3 .

[0032] The working principle of the present invention is as follows: when the device is used, the conveyor belt drives the food to move below the working chamber 7, and the hydraulic cylinder at the upper end of the top plate 1 drives the working chamber 7 to move downward;

[0033] During the downward movement of the working chamber 7, the side plates Ⅰ2 and Ⅱ3 around the working chamber 7 drive the cleaning devices Ⅰ4 and Ⅱ5 to move downward respectively. Since the lowest point of the cleaning plate Ⅰ43 of the cleaning device Ⅰ4 is lower than the lowest point of the cleaning plate Ⅱ52, the roller 6 at the lower end of the cleaning plate Ⅰ43 first contacts the conveyor belt during the downward movement. During the continuous downward movement of the working chamber 7, the side plate Ⅰ2 moves downward to push the outer side surfaces of the two cleaning plates Ⅰ43 located in the same groove 21, so that the bottom ends of the two cleaning plates Ⅰ43 move toward each other and compress the bidirectional elastic telescopic rod 42. During the movement of the two cleaning plates Ⅰ43 toward each other, the roller 6 is driven to roll on the conveyor belt, and the foreign matter on the conveyor belt is pushed between the two cleaning plates Ⅰ43 (i.e., by Figure 2 Status moved to Figure 3 As the working chamber 7 moves downward, the elastic telescopic rod 41 also contracts. The elastic force of the elastic telescopic rod 41 is greater than that of the bidirectional elastic telescopic rod 42. When the working chamber 7 moves upward, the elastic telescopic rod 41 pushes the two cleaning plates I 43 out of the groove 21 under the action of the elastic force, so as to facilitate the next work.

[0034] At the same time, during the downward movement of the working chamber 7, the cleaning plate II 52 contacts the conveyor belt. After contacting the conveyor belt, the side plate II 3 continuously moves downward, pushing the inclined surface of the cleaning plate II 52, so that the cleaning plate II 52 moves away from the working chamber 7. At the same time, the cleaning plate II 52 pushes the slider 51 to slide upward along the slide groove 31, so that the roller 6 at the lower end of the cleaning plate II 52 drives the foreign matter on the surface of the conveyor belt to leave the lower part of the working chamber 7 (that is, by Figure 4 The displayed state moves to Figure 5 When the working chamber 7 moves upward, the slider 51 moves downward under the action of gravity, and the cleaning plate II 52 moves back to the position under the action of the spring hinge. Figure 4 Status shown;

[0035] After the food is sealed, the conveyor belt continues to move. When the conveyor belt moves to the end facing downward, the foreign objects on the conveyor belt will be separated from the conveyor belt under the action of gravity. No manual cleaning is required, which saves manpower. At the same time, the conveyor belt will not be scratched or foreign objects will be embedded in the conveyor belt under pressure, causing damage to the conveyor belt.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms of assembly without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An inflation and sealing device for a nitrogen packaging machine, characterized in that: The invention comprises a top plate (1), a side plate I (2) and a side plate II (3); the lower end of the top plate (1) is fixedly connected to two side plates I (2) and two side plates II (3), and the side plates I (2), II (3) and the top plate (1) together form a working chamber (7); the lower end of the side plate I (2) is provided with a groove (21), and a cleaning device I (4) is provided in the groove (21); the outer side surface of the side plate II (3) is set as an inclined surface, and a slide groove (31) and a cleaning device II (5) slidably matched with the slide groove (31) are provided on the inclined surface; The cleaning device I (4) comprises an elastic telescopic rod (41) fixed inside the groove (21); the lower end of the elastic telescopic rod (41) is fixedly connected to a bidirectional elastic telescopic rod (42); both ends of the bidirectional elastic telescopic rod (42) are connected to a cleaning plate I (43) via a spring hinge; The cleaning device II (5) comprises a slider (51) slidably matched with the slide groove (31); a cleaning plate II (52) is connected to the side of the slider (51) via a spring hinge; A method for using an inflation and sealing device of a nitrogen packaging machine, the method comprising the following steps: Step 1: The hydraulic cylinder at the upper end of the top plate (1) drives the working chamber (7) to move downward; Step 2: After the cleaning plate I (43) contacts the conveyor belt, the two cleaning plates I (43) move toward each other during the downward movement of the side plate I (2), and the foreign matter on the conveyor belt is pushed between the two cleaning plates I (43); Step 3: After the cleaning plate II (52) contacts the conveyor belt, during the downward movement of the side plate II (3), the cleaning plate II (52) pushes the foreign matter on the conveyor belt to the outside of the working chamber (7).

2. The inflation and sealing device of a nitrogen packaging machine according to claim 1, characterized in that: The cleaning plate II (52) is configured to be V-shaped.

3. The inflation and sealing device of a nitrogen packaging machine according to claim 1, characterized in that: When the cleaning plate I (43) and the cleaning plate II (52) are not in contact with the conveyor belt, the height of the cleaning plate II (52) is higher than that of the cleaning plate I (43).

4. The inflation and sealing device of a nitrogen packaging machine according to claim 3, characterized in that: When the cleaning plates I (43) located in the same groove (21) are not in contact with the conveyor belt, the maximum angle between the two cleaning plates I (43) is 25-35°, and the distance between the bottom ends of the two cleaning plates I (43) is 1-2 cm larger than the width of the side plate I (2).

5. The inflation and sealing device of a nitrogen packaging machine according to claim 4, characterized in that: When the cleaning plate II (52) is not in contact with the conveyor belt, the end of the cleaning plate II (52) away from the slider (51) is located below the working chamber (7).

6. The inflation and sealing device of a nitrogen packaging machine according to claim 5, characterized in that: When the cleaning plate I (43) close to the working chamber (7) is not in contact with the conveyor belt, the lower end of the cleaning plate I (43) is located below the working chamber (7).

7. The inflation and sealing device of a nitrogen packaging machine according to claim 6, characterized in that: The lower ends of the cleaning plate I (43) and the cleaning plate II (52) are connected to a roller (6) via a shaft.

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