Corona mechanism

Abstract

The utility model discloses a corona mechanism which comprises a rack, a corona assembly and a conveying assembly, the corona assembly and the conveying assembly are arranged on the rack, and the conveying assembly is arranged at the input end of the corona assembly and the output end of the corona assembly; the corona assembly comprises a first corona unit and a second corona unit, and the first corona unit and the second corona unit are adjacently arranged; the conveying assembly comprises an unwinding unit, a buffer unit and a plurality of auxiliary conveying rollers. The unwinding unit, the buffer unit and the auxiliary conveying rollers are correspondingly arranged in the side direction of the first corona unit and the side direction of the second corona unit respectively. According to the corona mechanism disclosed by the utility model, the output end of the first corona unit and the output end of the second corona unit are oppositely arranged in a staggered manner, so that the first corona unit can cooperate with the second corona unit to carry out corona treatment on the surfaces of the two sides of the packaging bag coiled material, and the surface treatment efficiency of the corona mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corona equipment, in particular to a corona mechanism. Background Art

[0002] Corona treatment uses high-voltage corona discharge to generate plasma on the material surface. This plasma can break the molecular bonds on the material surface, generating free radicals, thereby increasing the polarity and surface energy of the material surface. This process can enhance the adhesion of the material surface to inks, coatings, adhesives, etc. Corona treatment equipment mainly consists of a high-voltage power supply, an electrode system, a transmission system, and a cooling system. The electrode system usually includes a high-voltage electrode and a ground electrode. Corona discharge occurs between the high-voltage electrode and the ground electrode. The gap between the electrode and the material to be treated is the discharge gap. Corona discharge occurs in this gap, and the size and uniformity of the gap have a significant impact on the treatment effect. The transmission system is used to uniformly and stably transport the material to be treated to the corona treatment area and ensure stable passage, thereby ensuring the corona treatment effect of the material.

[0003] In the existing packaging bag printing process, corona treatment is an important step in increasing the surface energy of packaging bags and improving ink adhesion. However, the lack of a leveling structure to maintain the flatness of the material surface affects the stability and uniformity of the corona treatment, resulting in poor surface corona discharge effect of the packaging bags. Utility Model Content

[0004] Based on this, it is necessary to provide a corona mechanism to address the technical problem that the existing corona mechanism has a poor corona treatment effect on the material to be treated.

[0005] A corona mechanism includes a frame, a corona assembly and a conveying assembly. The corona assembly and the conveying assembly are arranged on the frame, wherein the conveying assembly is arranged at the input end and the output end of the corona assembly, so that the packaging bag roll to be corona treated can be conveyed at the input side and the output side of the corona assembly through the conveying assembly.

[0006] The corona assembly includes a first corona unit and a second corona unit. The first corona unit and the second corona unit are arranged adjacent to each other, and the output end of the first corona unit and the output end of the second corona unit are arranged in a staggered manner towards each other. Therefore, the first corona unit can cooperate with the second corona unit to perform corona treatment on the side surface of the packaging bag roll, thereby improving the surface treatment efficiency of the corona mechanism.

[0007] The conveying assembly includes a reeling unit, a buffer unit and several auxiliary conveying rollers, which are respectively arranged on the sides of the first corona unit and the second corona unit. The reeling unit and the several auxiliary conveying rollers are rotatably installed on the frame, and the buffer unit is movably installed on the frame.

[0008] In one embodiment, the unwinding unit is configured as an air-inflating shaft assembly, one end of which is mounted on the inner wall of the frame.

[0009] In one embodiment, the above-mentioned buffer unit includes a plurality of buffer rollers, two buffer mounting seats and two buffer guide rails. The two buffer guide rails are arranged parallel to each other on the inner wall of the frame. The two buffer mounting seats are respectively slidably connected to the two buffer guide rails. A plurality of buffer rollers are arranged between the two buffer mounting seats, and the two ends of each buffer roller are respectively rotatably connected to the buffer mounting seat.

[0010] In one embodiment, each of the buffer rollers is arranged in parallel with the unwinding unit and each of the auxiliary conveying rollers.

[0011] In one embodiment, the aforementioned auxiliary conveying rollers are respectively disposed between the air-inflating shaft assembly, the plurality of buffer rollers, and the corona assembly.

[0012] In one embodiment, the corona assembly further comprises two mounting plates, which are arranged parallel to each other on the inner wall of the frame, and two ends of the first corona unit and two ends of the second corona unit are connected to the two mounting plates respectively.

[0013] In one embodiment, the two mounting plates are connected to the inner wall of the frame via a bottom beam respectively.

[0014] In one embodiment, the above-mentioned first corona unit is provided with a first main roller body and a first auxiliary roller body, the output end of the first corona unit is arranged toward the top side, the first main roller body is arranged at the output end of the first corona unit, and the first auxiliary roller body is arranged on one side of the first main roller body.

[0015] In one embodiment, the above-mentioned second corona unit is provided with a second main roller body and a second auxiliary roller body, the output end of the second corona unit is arranged toward the bottom side, the second main roller body is arranged at the output end of the second corona unit, and the second auxiliary roller body is arranged on one side of the second main roller body.

[0016] In one embodiment, the conveying assembly further includes a traction unit, which is disposed on the output side of the corona assembly and is mounted on the inner wall of the frame.

[0017] In one embodiment, the conveying assembly further includes an exhaust unit, which is arranged parallel to the top side of the buffer unit and mounted on the frame.

[0018] In one embodiment, the above-mentioned exhaust unit includes a rotating cylinder, a knife shaft and two support arms. The two support arms are respectively arranged at the two ends of an auxiliary conveying roller and extend a preset distance toward one side of the other adjacent auxiliary conveying roller to form a connecting end. The knife shaft is parallel to the adjacent auxiliary conveying roller and its two ends are connected to the connecting ends of the two support arms. The rotating cylinder is arranged at the connecting end of one of the support arms and drives the connected knife shaft; the side surface of the knife shaft is connected to a scraper for exhausting the packaging bag roll.

[0019] The corona mechanism is configured such that the output end of the first corona unit and the output end of the second corona unit are offset relative to each other, so that the first corona unit can cooperate with the second corona unit to perform corona treatment on the side surface of the packaging bag roll, thereby improving the surface treatment efficiency of the corona mechanism. The conveying assembly includes a reeling unit, a buffer unit and a plurality of auxiliary conveying rollers, which are respectively arranged on the sides of the first corona unit and the second corona unit, wherein the reeling unit and the plurality of auxiliary conveying rollers are rotatably mounted on the frame, and the buffer unit is movably mounted on the frame; the packaging bag roll to be corona processed is sleeved on the reeling unit, and its free end is conveyed between the first corona unit and the second corona unit through the auxiliary conveying rollers and the buffer unit for double-sided corona treatment. During this process, the buffer unit can adjust its relative position with the frame according to the structural strength and tension change of the roll, thereby realizing dynamic adjustment of the roll tension, so that the packaging bag roll input into the corona assembly always remains flat, thereby improving the corona treatment effect and ensuring the effectiveness of the corona treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of a corona mechanism in one embodiment;

[0021] Figure 2 Schematic diagram of the structure of a corona mechanism in one embodiment;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the AA portion in the illustrated embodiment. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation to the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] See also Figures 1 to 3 The present invention discloses a corona mechanism 10, which includes a frame 100, a corona assembly 200 and a conveying assembly 300. The corona assembly 200 and the conveying assembly 300 are arranged on the frame 100, wherein the conveying assembly 300 is arranged at the input end of the corona assembly 200 and the output end of the corona assembly 200, so that the packaging bag roll to be corona treated can be transported at the input side and the output side of the corona assembly 200 through the conveying assembly 300. Specifically, the corona assembly 200 includes a first corona unit 210 and a second corona unit 220. The first corona unit 210 and the second corona unit 220 are arranged adjacent to each other, and the output end of the first corona unit 210 and the output end of the second corona unit 220 are arranged in a staggered manner towards each other, so that the first corona unit 210 can cooperate with the second corona unit 220 to perform corona treatment on the side surface of the packaging bag roll, thereby improving the surface treatment efficiency of the corona mechanism 10. Specifically, the conveying assembly 300 includes a reeling unit 310, a buffer unit 320 and a plurality of auxiliary conveying rollers 330, the reeling unit 310, the buffer unit 320 and the plurality of auxiliary conveying rollers 330 are respectively arranged on the side of the first corona unit 210 and the second corona unit 220, wherein the reeling unit 310 and the plurality of auxiliary conveying rollers 330 are rotatably mounted on the frame 100, and the buffer unit 320 is movably mounted on the frame 100; the packaging bag roll to be corona processed is sleeved on the reeling unit 310 Its free end is conveyed to the first corona unit 210 and the second corona unit 220 by the auxiliary conveying roller 330 and the buffer unit 320 for double-sided corona treatment. During this process, the buffer unit 320 can adjust its relative position with the frame 100 according to the structural strength and tension change of the coil, thereby realizing dynamic adjustment of the coil tension, so that the packaging bag coil input into the corona assembly 200 always remains flat, thereby improving the corona treatment effect and ensuring the effectiveness of the corona treatment.

[0030] In one embodiment, the unwinding unit 310 is configured as an air shaft assembly, one end of which is mounted on the inner wall of the frame 100. The packaging bag roll is sleeved on the side surface of the air shaft of the air shaft assembly, and the rotation of the air shaft drives the packaging bag roll to unwind.

[0031] Furthermore, the buffer unit 320 includes a plurality of buffer rollers 321, two buffer mounting seats 322, and two buffer guide rails 323. The two buffer guide rails 323 are disposed parallel to each other on the inner wall of the frame 100. The two buffer mounting seats 322 are slidably connected to the two buffer guide rails 323, respectively. The plurality of buffer rollers 321 are disposed between the two buffer mounting seats 322, and each buffer roller 321 is rotatably connected to the buffer mounting seat 322 at both ends. Specifically, each buffer roller 321 is disposed parallel to the unwinding unit 310 and each auxiliary conveying roller 330 to ensure that the packaging bag roll is not twisted when passing through the unwinding unit 310, the auxiliary conveying rollers 330, and the buffer rollers 321, thereby maintaining a flat state.

[0032] Furthermore, a plurality of auxiliary conveying rollers 330 are respectively arranged between the air-inflating shaft group, the plurality of buffer rollers 321 and the corona assembly 200 to assist in conveying the packaging bag roll, thereby ensuring the stability of the packaging bag roll conveying process.

[0033] Furthermore, the corona assembly 200 further includes two mounting plates 230, which are relatively parallel to the inner wall of the frame 100, and the two ends of the first corona unit 210 and the two ends of the second corona unit 220 are respectively connected to the two mounting plates 230. Specifically, the two mounting plates 230 are respectively connected to the inner wall of the frame 100 through a bottom beam 240 to ensure the stable installation of the corona assembly 200.

[0034] Furthermore, the first corona unit 210 is provided with a first main roller 211 and a first auxiliary roller 212. The output end of the first corona unit 210 is arranged toward the top side, the first main roller 211 is arranged at the output end of the first corona unit 210, and the first auxiliary roller 212 is arranged on one side of the first main roller 211. Thus, the packaging bag roll to be corona treated is assisted in conveying through the first auxiliary roller 212 and the first main roller 211 in sequence, and the packaging bag roll passes between the first main roller 211 and the first corona unit 210, thereby realizing the corona treatment of the surface of the packaging bag roll by the first corona unit 210.

[0035] Furthermore, the second corona unit 220 is provided with a second main roller 221 and a second auxiliary roller 222. The output end of the second corona unit 220 is arranged toward the bottom side, the second main roller 221 is arranged at the output end of the second corona unit 220, and the second auxiliary roller 222 is arranged on one side of the second main roller 221. Thus, the packaging bag roll to be corona treated is assisted in conveying through the second auxiliary roller 222 and the second main roller 221 in sequence, and the packaging bag roll passes between the second main roller 221 and the second corona unit 220, thereby realizing the corona treatment of the surface of the packaging bag roll by the second corona unit 220.

[0036] Furthermore, the conveying assembly 300 also includes a traction unit 340, which is arranged on the output side of the corona assembly 200, and the traction unit 340 is installed on the inner wall of the frame 100, so that the traction unit 340 can cooperate with the unwinding unit 310, the buffer unit 320 and several auxiliary conveying rollers 330 to pull the movable end of the packaging bag roll to realize the conveyance of the packaging bag roll.

[0037] Furthermore, the conveying assembly 300 also includes an exhaust unit 350, which is arranged parallel to the top side of the buffer unit 320 and is mounted on the frame 100. Specifically, the exhaust unit 350 includes a rotary cylinder 351, a blade shaft 352, and two support arms 353. The two support arms 353 are respectively arranged at both ends of an auxiliary conveying roller 330 and extend toward the side of the other adjacent auxiliary conveying roller 330 by a predetermined distance to form a connection end. The blade shaft 352 is parallel to the adjacent auxiliary conveying roller 330 and is connected to the connection end of the two support arms 353 at both ends. The rotary cylinder 351 is arranged at the connection end of one of the support arms 353 and drives the blade shaft 352. The side surface of the blade shaft 352 is connected to a scraper (not shown) for exhausting the packaging bag roll. In actual application, the rotating cylinder 351 drives the knife shaft 352 to drive the scraper to press against the side surface of the adjacent auxiliary conveying roller 330. When the packaging bag roll passes through the scraper and the corresponding auxiliary conveying roller 330 to complete the extrusion and exhaust, it enters the corona assembly 200 for corona treatment, which can further improve the corona treatment effect.

[0038] To sum up, the corona mechanism disclosed in the present invention arranges the output end of the first corona unit and the output end of the second corona unit in an offset manner so that the first corona unit can cooperate with the second corona unit to perform corona treatment on the side surface of the packaging bag roll, thereby improving the surface treatment efficiency of the corona mechanism. The conveying assembly includes a unwinding unit, a buffer unit and several auxiliary conveying rollers, which are respectively arranged on the sides of the first corona unit and the second corona unit, wherein the unwinding unit and the several auxiliary conveying rollers are rotatably installed on the frame, and the buffer unit is movably installed on the frame; the packaging bag roll to be corona processed is sleeved on the unwinding unit, and its free end is conveyed to the first corona unit and the second corona unit through the auxiliary conveying rollers and the buffer unit for double-sided corona treatment. During this process, the buffer unit can adjust its relative position with the frame according to the structural strength of the roll and the change in tension, so as to realize dynamic adjustment of the roll tension, so that the packaging bag roll input into the corona assembly always remains flat, thereby improving the corona treatment effect and ensuring the effectiveness of the corona treatment.

[0039] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A corona mechanism, characterized in that: include: A frame, a corona assembly and a conveying assembly, wherein the corona assembly and the conveying assembly are arranged on the frame, wherein the conveying assembly is arranged at the input end of the corona assembly and the output end of the corona assembly; The corona assembly includes a first corona unit and a second corona unit, the first corona unit and the second corona unit are arranged adjacent to each other, and the output end of the first corona unit and the output end of the second corona unit are arranged in a staggered manner towards each other; The conveying assembly includes a unwinding unit, a buffer unit and several auxiliary conveying rollers, and the unwinding unit, the buffer unit and the several auxiliary conveying rollers are respectively arranged on the sides of the first corona unit and the second corona unit, wherein the unwinding unit and the several auxiliary conveying rollers are rotatably installed on the frame, and the buffer unit is movably installed on the frame.

2. The corona mechanism according to claim 1, wherein: The unwinding unit is configured as an air-expanding shaft group, and one end of the air-expanding shaft group is mounted on the inner wall of the frame.

3. The corona mechanism according to claim 2, characterized in that The buffer unit includes a plurality of buffer rollers, two buffer mounting seats and two buffer guide rails. The two buffer guide rails are arranged parallel to each other on the inner wall of the frame. The two buffer mounting seats are respectively slidably connected to the two buffer guide rails. The plurality of buffer rollers are arranged between the two buffer mounting seats, and the two ends of each buffer roller are respectively rotatably connected to the buffer mounting seat.

4. The corona mechanism according to claim 3, characterized in that Each of the buffer rollers is arranged in parallel with the unwinding unit and each of the auxiliary conveying rollers.

5. The corona mechanism according to claim 4, characterized in that The auxiliary conveying rollers are respectively arranged between the air-inflating shaft group, the buffer rollers and the corona assembly.

6. The corona mechanism according to claim 1, wherein: The corona assembly further includes two mounting plates, which are arranged parallel to each other on the inner wall of the frame. Two ends of the first corona unit and two ends of the second corona unit are respectively connected to the two mounting plates.

7. The corona mechanism according to claim 6, characterized in that The two mounting plates are respectively connected to the inner wall of the frame through a bottom beam.

8. The corona mechanism according to claim 1, wherein: The conveying assembly further includes a traction unit, which is arranged at the output side of the corona assembly and is installed on the inner wall of the frame.

9. The corona mechanism according to claim 1, wherein: The conveying assembly further includes an exhaust unit, which is arranged in parallel on the top side of the buffer unit and installed on the frame.

10. The corona mechanism according to claim 9, characterized in that The exhaust unit includes a rotating cylinder, a knife shaft and two support arms. The two support arms are respectively arranged at the two ends of one of the auxiliary conveying rollers and extend a preset distance toward one side of the other adjacent auxiliary conveying roller to form a connecting end. The knife shaft is parallel to the adjacent auxiliary conveying roller and its two ends are connected to the connecting ends of the two support arms. The rotating cylinder is arranged at the connecting end of one of the support arms and drives the connection to the knife shaft.

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