Aluminum foil negative pressure conveying device and guide plate assembly for soft and hard box packaging machine

Abstract

The present invention discloses a negative pressure conveying device for aluminum foil of a soft and hard box packaging machine and its guide plate assembly. The guide plate assembly includes a fixed guide plate and a movable guide plate connected with the fixed guide plate. A first air slot is provided on the back of the fixed guide plate. The back of the fixed guide plate is connected with a positive pressure air chamber plate so that the first air slot and the positive pressure air chamber plate form a positive pressure air chamber. A quick-plug connector for connecting with a positive pressure air duct is provided on the positive pressure air chamber plate. A plurality of air holes inclined downward and penetrating the fixed guide plate are provided in the first air slot so that compressed air can be blown downward through the air holes. Therefore, there is an air film formed by compressed air between the aluminum foil and the fixed guide plate, which avoids direct contact and wear between the two, greatly prolongs the service life of the fixed guide plate, and avoids frequent replacement of the fixed guide plate. At the same time, the high-pressure jet formed by the compressed air can assist the downward conveying of the aluminum foil, thereby improving the conveying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco packaging, and more specifically to a guide plate assembly. In addition, the present invention also discloses an aluminum foil negative pressure conveying device for a soft or hard box packaging machine comprising the guide plate assembly. Background Art

[0002] The soft and hard box packaging machine belongs to cigarette packaging equipment, and the aluminum foil negative pressure conveying device is used to convey the aluminum foil for packaging cigarettes.

[0003] The negative pressure conveying device for aluminum foil mainly includes a mounting seat, a conveying frame, a negative pressure suction belt, a guide plate assembly, etc. After the unfolded and embossed aluminum foil enters the negative pressure conveying device, the aluminum foil surface is sucked by the negative pressure suction belt and conveyed downward. Since the aluminum foil bends and deforms after unfolding at room temperature and the suction range of the negative pressure suction belt is limited, the aluminum foil contacts and rubs against the fixed guide plate of the guide plate assembly during the downward conveying process; after conveying to the cutting position, the cutter cuts the aluminum foil, and the aluminum foil also bends and deforms before and after the cutting position, further exacerbating the friction between the aluminum foil and the fixed guide plate.

[0004] The fixed guide plates are mostly made of plexiglass plates. After working for a period of time, the fixed guide plates will wear and become thinner, causing the gap in the conveying channel to widen, causing the curved part of the aluminum foil to scrape against the acceleration roller guide plate located below the fixed guide plate, causing the aluminum foil to be skewed or even blocked by the aluminum foil, resulting in shutdown, reducing the cigarette packaging quality and production efficiency.

[0005] In order to reduce the accident downtime rate in the prior art, the fixed guide plate needs to be replaced once a month. Frequent replacement of the fixed guide plate seriously increases the spare parts cost and also reduces the effective production time.

[0006] In summary, how to reduce the replacement frequency of the fixed guide plate is a problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0007] In view of this, the object of the present invention is to provide a guide plate assembly, which can form an air film between the aluminum foil and the fixed guide plate to avoid wear on the surfaces of the aluminum foil and the fixed guide plate.

[0008] In addition, the present invention also provides an aluminum foil negative pressure conveying device for a soft or hard box packaging machine including the above-mentioned guide plate assembly.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A guide plate assembly, comprising a fixed guide plate and a movable guide plate connected to the fixed guide plate, wherein a first air slot is provided on the back of the fixed guide plate, and the back of the fixed guide plate is connected to a positive pressure air chamber plate, so that the first air slot and the positive pressure air chamber plate form a positive pressure air chamber;

[0011] The positive pressure air chamber plate is provided with a quick-connect connector for connecting to the positive pressure air duct, and the first air slot is provided with a plurality of downwardly inclined air holes penetrating the fixed guide plate so that compressed air can be blown downwardly through the air holes.

[0012] Preferably, the length of the first air duct is greater than the width of the aluminum foil.

[0013] Preferably, the air holes are evenly distributed along the length direction of the first air slot.

[0014] Preferably, the diameter of the pores is 1 mm-1.5 mm.

[0015] Preferably, the positive pressure air chamber plate is an L-shaped plate, and the L-shaped plate is provided with a second air groove, a positioning hole for connecting with the fixed guide plate, and a quick-connection hole for installing the quick-connection.

[0016] Preferably, the quick-connect connector hole is a threaded hole, and the quick-connect connector is threadedly connected to the quick-connect connector hole.

[0017] Preferably, a first segmented guide portion is provided at the lower portion of the fixed guide plate, and a length of an end of the fixed guide plate relatively close to the movable guide plate is smaller than a length of an end of the fixed guide plate relatively far from the movable guide plate;

[0018] A second segmented guide portion is disposed at the lower portion of the movable guide plate, and a length of an end of the movable guide plate relatively close to the fixed guide plate is smaller than a length of an end of the movable guide plate relatively far from the fixed guide plate.

[0019] Preferably, the length of one end of the fixed guide plate relatively close to the movable guide plate is the same as the length of one end of the movable guide plate relatively close to the fixed guide plate.

[0020] Preferably, an end of the fixed guide plate that is relatively far from the movable guide plate is 10 mm higher than an end that is relatively close to the movable guide plate.

[0021] A negative pressure conveying device for aluminum foil of a soft or hard box packaging machine comprises a mounting seat and a guide plate assembly mounted on the mounting seat, wherein the guide plate assembly is any one of the guide plate assemblies described above.

[0022] When the guide plate assembly provided by the present invention is working, compressed air is connected to the positive pressure air chamber through the positive pressure air duct, and is blown out obliquely downward through the air holes on the first air slot, forming an air film on the surface of the fixed guide plate. The existence of the air film prevents the aluminum foil from rubbing against the fixed guide plate. At the same time, the high-pressure jet formed by the compressed air has a component velocity downward along the surface of the fixed guide plate, which can assist in conveying the aluminum foil downward and improve the conveying efficiency.

[0023] In the present invention, an air film formed by compressed air exists between the aluminum foil and the fixed guide plate, which avoids direct contact and wear between the two, greatly prolongs the service life of the fixed guide plate, and avoids frequent replacement of the fixed guide plate.

[0024] In addition, the present invention also provides an aluminum foil negative pressure conveying device for a soft or hard box packaging machine including the above-mentioned guide plate assembly, which reduces the risk of aluminum foil skewing in the conveying channel or even aluminum foil clogging and stopping, effectively ensuring packaging quality and packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A rear view schematic diagram of a specific embodiment of the guide plate assembly provided by the present invention;

[0027] Figure 2 for Figure 1 A rear view schematic diagram of the fixed guide plate;

[0028] Figure 3 for Figure 1 A schematic diagram of the main view of the middle positive pressure air chamber plate;

[0029] Figure 4 for Figure 3 A rear view schematic diagram of the central positive pressure air chamber plate;

[0030] Figure 5 for Figure 1 A schematic diagram of the main view of the movable fixing plate;

[0031] Figure 6 for Figure 5 Schematic diagram of the rear view of the movable fixing plate.

[0032] Figure 1-Figure 6 middle:

[0033] 1 is a fixed guide plate, 11 is a first wind slot, 12 is an air hole, 13 is a first segmented guide portion, 2 is a movable guide plate, 21 is a closed slot, 22 is a second segmented guide portion, 3 is a positive pressure air chamber plate, 31 is a second wind slot, 32 is a positioning hole, 33 is a quick-connection connector hole, and 4 is a quick-connection connector. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The core of the present invention is to provide a guide plate assembly, which can form an air film between the aluminum foil and the fixed guide plate to avoid wear on the surfaces of the aluminum foil and the fixed guide plate.

[0036] The present invention also provides an aluminum foil negative pressure conveying device for a soft or hard box packaging machine including the guide plate assembly.

[0037] Please refer to Figure 1-Figure 6 .

[0038] The guide plate assembly provided by the present invention includes a fixed guide plate 1 and a movable guide plate 2 cooperated with the fixed guide plate 1, a first wind groove 11 is provided on the back of the fixed guide plate 1, and the back of the fixed guide plate 1 is connected to the positive pressure air chamber plate 3 so that the first wind groove 11 and the positive pressure air chamber plate 3 form a positive pressure air chamber; the positive pressure air chamber plate 3 is provided with a quick-connect connector 4 for connecting to the positive pressure air duct, and a plurality of downwardly inclined air holes 12 are provided in the first wind groove 11 and pass through the fixed guide plate 1 so that compressed air can be blown downward through the air holes 12.

[0039] Please refer to Figure 1 , Figure 2 and Figure 5 The fixed guide plate 1 and the movable guide plate 2 are installed on the mounting seat, and the two are connected to form a guide plate assembly through a closed groove 21.

[0040] The first air slot 11 is disposed on the back of the fixed guide plate 1. Preferably, please refer to Figure 2 The first air slot 11 is arranged below the upper chamfer of the fixed guide plate 1. The specific distance between the first air slot 11 and the upper edge of the fixed guide plate 1 is determined according to the needs in actual production and will not be repeated here.

[0041] Since the positive pressure air chamber is used to form an air film between the aluminum foil and the fixed guide plate 1 , preferably, the length of the first air slot 11 is greater than the width of the aluminum foil to prevent the air film from completely covering the area on the fixed guide plate 1 that contacts the aluminum foil.

[0042] Considering the equipment space required for processing the air hole 12, preferably, the width of the first air slot 11 can be set to 5 mm, which reserves enough processing space and has a small processing volume. It should be noted that the above width is not a fixed value and can be adjusted according to factors such as the design diameter of the air hole 12 in actual production and the type of processing equipment.

[0043] Preferably, considering that the fixed guide plate 1 itself is relatively thin, the depth of the first air slot 11 can be set to 2 mm, which has a small processing amount, is convenient for processing, and has little effect on the strength of the fixed guide plate 1. It should be noted that the above depth is not a fixed value and can be adjusted according to factors such as the thickness of the fixed guide plate 1 in actual production.

[0044] The air hole 12 is inclined downward and penetrates the fixed guide plate 1 , so that the compressed gas in the positive pressure air chamber can be blown out through the air hole 12 and form an air film on the front side of the fixed guide plate 1 to prevent the contact wear between the aluminum foil and the fixed guide plate 1 .

[0045] Preferably, the air holes 12 may be arranged to be evenly distributed along the length direction of the first air slot 11 .

[0046] The angle between the axis of the air hole 12 and the height direction of the fixed guide plate 1 is determined according to the formation effect of the air film in actual production. Preferably, the angle between the axis of the air hole 12 and the height direction of the fixed guide plate 1 can be set to 48°.

[0047] Preferably, the diameter of the air hole 12 can be set to 1 mm-1.5 mm, so that the compressed air can form a high-pressure jet in a small space to push the aluminum foil paper downward.

[0048] The positive pressure air chamber plate 3 is connected to the fixed guide plate 1 so as to form a positive pressure air chamber together with the first air slot 11 .

[0049] Preferably, the positive pressure air chamber plate 3 is an L-shaped plate, and the L-shaped plate is provided with a second air slot 31 , a positioning hole 32 for connecting with the fixed guide plate 1 , and a quick-connection hole 33 for installing the quick-connection 4 .

[0050] The positioning hole 32 can be a pin hole, and the fixed guide plate 1 is connected to the positive pressure air chamber plate 3 by a pin; or it can be a threaded hole, and the fixed guide plate 1 is connected to the positive pressure air chamber plate 3 by a bolt.

[0051] Preferably, the quick-connect connector hole 33 is a threaded hole, and the quick-connect connector 4 is threadedly connected to the quick-connect connector hole 33 .

[0052] During assembly, the quick-insertion connector 4 is installed in the quick-insertion connector hole 33 , and the positioning hole 32 is used to connect and fix the guide plate 1 and the positive pressure air chamber plate 3 .

[0053] In addition, the positive pressure air chamber plate 3 can also be set as a flat plate, and a positioning hole 32 and a quick-connection hole 33 are provided on the flat plate.

[0054] During operation, compressed air is connected to the positive pressure air chamber through the positive pressure air duct, and is blown downward obliquely through the air holes 12 of the first air slot 11, forming an air film on the surface of the fixed guide plate 1. The existence of the air film prevents the aluminum foil from rubbing against the fixed guide plate 1. At the same time, the high-pressure jet formed by the compressed air has a downward component velocity along the surface of the fixed guide plate, which can assist in conveying the aluminum foil downward and improve the conveying efficiency.

[0055] In this embodiment, an air film formed by compressed air exists between the aluminum foil and the fixed guide plate 1, which avoids direct contact and wear between the two, greatly prolongs the service life of the fixed guide plate 1, and avoids frequent replacement of the fixed guide plate 1.

[0056] On the basis of the above embodiment, a first segmented guide portion 13 is provided at the lower portion of the fixed guide plate 1, and the length of one end of the fixed guide plate 1 relatively close to the movable guide plate 2 is smaller than the length of one end of the fixed guide plate 1 relatively far away from the movable guide plate 2; a second segmented guide portion 22 is provided at the lower portion of the movable guide plate 2, and the length of one end of the movable guide plate 2 relatively close to the fixed guide plate 1 is smaller than the length of one end of the movable guide plate 2 relatively far away from the fixed guide plate 1.

[0057] The middle position of the guide plate assembly corresponds to the position where the aluminum foil is prone to deformation. Please refer to Figure 1 By setting the first segmented guide part 13 and the second segmented guide part 22, the middle position of the guide plate assembly is lower than the two end positions of the guide plate assembly, and the easily deformed position and the non-deformed position of the aluminum foil paper can be segmentedly guided.

[0058] Preferably, the length of one end of the fixed guide plate 1 relatively close to the movable guide plate 2 can be set to be the same as the length of one end of the movable guide plate 2 relatively close to the fixed guide plate 1 .

[0059] Preferably, the end of the fixed guide plate 1 farther from the movable guide plate 2 is 10 mm higher than the end closer to the movable guide plate 2. It should be noted that this value is not a fixed value and can be adjusted according to factors such as the length of the fixed guide plate 1 in actual production.

[0060] In a specific embodiment, the height of the fixed guide plate 1 at one end relatively far away from the movable guide plate 2 is 90 mm, and the height of the end relatively close to the movable guide plate 2 is 80 mm; the end of the movable guide plate 2 relatively close to the fixed guide plate 1 is flush with the end of the fixed guide plate 1 relatively close to the movable guide plate 2, and the end of the movable guide plate 2 relatively far away from the fixed guide plate 1 is flush with the end of the fixed guide plate 1 relatively far away from the movable guide plate 2.

[0061] In addition to the above-mentioned guide plate assembly, the present invention also provides a negative pressure conveying device for aluminum foil of a soft or hard box packaging machine including the guide plate assembly disclosed in the above-mentioned embodiment, and the negative pressure conveying device for aluminum foil of a soft or hard box packaging machine includes a mounting seat and a guide plate assembly mounted on the mounting seat.

[0062] Preferably, the guide plate assembly can be arranged to be higher than the guide plate of the accelerating roller in a direction perpendicular to the aluminum foil conveying passage. Since the guide plate assembly is higher than the guide plate of the accelerating roller, it is more difficult for the aluminum foil to be scratched against the guide plate of the accelerating roller, further reducing the risk of the aluminum foil skewing or even blocking the conveying passage and causing downtime, thereby improving packaging quality and packaging efficiency.

[0063] Preferably, the guide plate assembly is 1 mm higher than the accelerating roller guide plate in a direction perpendicular to the aluminum foil conveying passage.

[0064] In a specific embodiment, the negative pressure conveying device for aluminum foil of a soft and hard box packaging machine adopts the guide plate assembly disclosed in the above embodiment, and the fixed guide plate 1 is not replaced within six months. Compared with the monthly replacement of the fixed guide plate 1 in the prior art, the number of spare parts is greatly reduced, saving spare parts costs; at the same time, the number of aluminum foil skewness and blockage problems is greatly reduced, thereby improving packaging quality and packaging efficiency.

[0065] It should be noted that the first and second in the first wind slot 11 and the second wind slot 31, the first segmented guide portion 13 and the second segmented guide portion 22 mentioned in the present application document are only used to distinguish the difference in position, and do not contain any limitation on the order.

[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0067] The above is a detailed introduction to the negative pressure conveying device for aluminum foil of a soft and hard box packaging machine and its guide plate assembly provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A guide plate assembly, comprising a fixed guide plate (1) and a movable guide plate (2) cooperatively connected to the fixed guide plate (1), characterized in that: A first air slot (11) is provided on the back of the fixed guide plate (1), and the back of the fixed guide plate (1) is connected to the positive pressure air chamber plate (3), so that the first air slot (11) and the positive pressure air chamber plate (3) form a positive pressure air chamber; The positive pressure air chamber plate (3) is provided with a quick-connect connector (4) for connecting to the positive pressure air duct, and the first air slot (11) is provided with a plurality of air holes (12) penetrating the fixed guide plate (1) and tilted downward, so that compressed air can be blown downward through the air holes (12) and form an air film on the front side of the fixed guide plate (1) to prevent contact wear between the aluminum foil and the fixed guide plate (1); The first air slot (11) is arranged below the upper chamfer of the fixed guide plate (1), the length of the first air slot (11) is greater than the width of the aluminum foil, so that the air film completely covers the area on the fixed guide plate (1) that contacts the aluminum foil, the air holes (12) are evenly distributed in the length direction of the first air slot (11), and the diameter of the air holes (12) is 1 mm-1.5 mm; The positive pressure air chamber plate (3) is an L-shaped plate, and the L-shaped plate is provided with a second air slot (31), a positioning hole (32) for connecting with the fixed guide plate (1), and a quick-connection hole (33) for installing the quick-connection (4); A first segmented guide portion (13) is provided at the lower portion of the fixed guide plate (1), and the length of an end of the fixed guide plate (1) closer to the movable guide plate (2) is shorter than the length of an end of the fixed guide plate (1) farther from the movable guide plate (2); A second segmented guide portion (22) is provided at the lower portion of the movable guide plate (2), and the length of an end of the movable guide plate (2) closer to the fixed guide plate (1) is shorter than the length of an end of the movable guide plate (2) farther from the fixed guide plate (1).

2. The guide plate assembly according to claim 1, characterized in that: The quick-insert connector hole (33) is a threaded hole, and the quick-insert connector (4) is threadedly connected to the quick-insert connector hole (33).

3. The guide plate assembly according to claim 1 or 2, characterized in that: The length of one end of the fixed guide plate (1) closer to the movable guide plate (2) is the same as the length of one end of the movable guide plate (2) closer to the fixed guide plate (1).

4. The guide plate assembly according to claim 3, characterized in that: An end of the fixed guide plate (1) that is relatively far from the movable guide plate (2) is 10 mm higher than an end that is relatively close to the movable guide plate (2).

5. A negative pressure conveying device for aluminum foil of a soft and hard box packaging machine, comprising a mounting seat and a guide plate assembly mounted on the mounting seat, characterized in that: The guide plate assembly is the guide plate assembly described in any one of claims 1-4.

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