Gloss oil coating mechanism

Abstract

The utility model relates to a gloss oil coating mechanism which comprises a guide supporting plate, driving rotating shafts are arranged at the two ends of the guide supporting plate, a conveying belt is arranged on the outer surface of the guide supporting plate in a sleeved mode, and the guide supporting plate is arranged in an arc shape. The utility model relates to the technical field of gloss oil coating. According to the gloss oil coating mechanism, cloth is driven to move by driving the rotating shaft and the rotating sleeve to rotate, so that the cloth moves in the rotating direction of the conveying belt under the influence of the pressure cylinder and the conveying belt, the cloth can penetrate through gloss oil in the moving process, and the surface of the cloth can be coated with a large amount of gloss oil; when passing through the pressure cylinder and the conveying belt, the cloth is extruded under the pressure of the pressure roller structure, so that excessive gloss oil on the surface of the cloth can be extruded while the cloth is effectively soaked by the gloss oil, and the problem that the drying speed of the gloss oil is low due to excessive gloss oil on the surface of the cloth is solved; and the gloss oil can be effectively and uniformly coated on the surface of the cloth.

Description

Technical Field

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

[0002] A varnish coating mechanism, also known as a varnish coater or a UV varnish coater, is a device specifically used to uniformly coat UV varnish (ultraviolet curable ink) on the surfaces of various substrates.

[0003] With its characteristics of high efficiency, environmental protection, and high quality, UV varnish has been widely used in many industrial fields such as printing, packaging, and finishing.

[0004] Chinese Patent Publication No. CN207669985U discloses a UV varnish coating device for a rotary printing press, including a frame, a material tank, and a coating mechanism, characterized in that: the UV varnish coating device further includes a light-shielding cover, and the frame is provided with a left wall plate, a right wall plate, and a rear baffle; the light-shielding cover is composed of an upper light-shielding plate and a front light-shielding plate, the upper edge of the front light-shielding plate is connected to the front edge of the upper light-shielding plate, and the rear edge of the upper light-shielding plate is hinged to the upper edge of the rear baffle; the material tank and the coating mechanism are both between the left wall plate and the right wall plate, the material tank and the coating mechanism are both on the front side of the rear baffle, and the material tank and the coating mechanism are both below the upper light-shielding plate and behind the front light-shielding plate. The utility model uses the light-shielding cover to cover the material tank and the coating mechanism, so that external light will not shine on the material tank and the coating mechanism, avoiding the curing of the UV varnish in the material tank and the UV varnish attached to the coating mechanism due to long-term exposure to external light. The utility model can be used in the UV varnish coating process of printing labels.

[0005] The above patent mainly adheres the ink to the surface of the pressure roller, and then contacts the pressure roller with the ink to achieve the purpose of coating the ink on the surface of the substrate. However, since the UV varnish is a fluid, it is very easy to have the problem that it cannot be evenly attached to the smooth surface of the pressure roller, and it is easy to have the problem of uneven coating. Summary of the Utility Model

[0006] In view of the deficiencies in the existing technology, the purpose of the present utility model is to provide a varnish coating mechanism to facilitate solving the technical problems mentioned in the above background art.

[0007] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0008] A varnish coating mechanism includes a guiding support plate. Driving rotating shafts are arranged at both ends of the guiding support plate. A transmission belt is sleeved on the outer surface of the guiding support plate. The guiding support plate is arc-shaped. Sealing plates are arranged on both sides of the inner arc surface of the guiding support plate. A rotating sleeve is jointly arranged on the corresponding sides of the two sealing plates. A pressure cylinder is arranged on the outer surface of the rotating sleeve.

[0009] Extension rods are arranged on both sides of one of the driving rotating shafts. A cleaning plate is jointly arranged at one ends of the two extension rods. A pressure roller structure is jointly arranged on the opposite sides of the two extension rods.

[0010] Further, the pressure roller mechanism includes a connecting shaft. The connecting shaft is rotatably connected to the side wall of the extension rod. A spring pressure rod is arranged on the outer peripheral wall of the connecting shaft. A pressure rubber roller is arranged at one end of the spring pressure rod.

[0011] Further, the axis line of the rotating sleeve is on the same straight line as the axis line of the inner arc surface of the guiding support plate, and the outer wall of the pressure cylinder is in contact with the outer wall of the transmission belt.

[0012] Further, the cleaning plate is rotatably connected to the two extension rods through a through shaft. One side of the cleaning plate is attached to the outer wall of the pressure cylinder.

[0013] Further, UV varnish is provided in the cavity formed by the sealing plate and the guiding support plate.

[0014] Further, driving motors are arranged on the side walls of the driving rotating shaft and the rotating sleeve.

[0015] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0016] 1. For this varnish coating mechanism, through the rotation of the driving rotating shaft and the rotating sleeve, the fabric is driven to move, so that the fabric moves along the rotation direction of the transmission belt under the influence of the pressure cylinder and the transmission belt. During the movement, the fabric will pass through the varnish, and a large amount of varnish will be coated on the surface of the fabric. When the fabric passes through the pressure cylinder and the transmission belt, it will be subjected to the pressure of the pressure roller structure to extrude the fabric, which can effectively make the varnish penetrate the fabric and at the same time extrude the excess varnish on the surface of the fabric, preventing the problem of slow drying speed of the varnish due to too much varnish on the fabric surface, and can effectively make the varnish evenly coated on the surface of the fabric;

[0017] 2. For this varnish coating mechanism, through the setting of the sealing plate and the guiding support plate for storing varnish, the fabric can be in full contact with the varnish during the process of passing through the cavity inside, and when the varnish passes through the inside of the cavity, the varnish will be stirred, and then the varnish will be fully stirred through the movement of the fabric, which can effectively prevent the problem of static condensation of the varnish. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of an optical oil coating mechanism of the present utility model.

[0020] Figure 2 It is a schematic structural diagram of a guiding support plate and a closing plate of an optical oil coating mechanism of the present utility model.

[0021] Figure 3 It is a schematic structural diagram of a rotating sleeve and a transmission belt of an optical oil coating mechanism of the present utility model.

[0022] Figure 4 It is a schematic structural diagram of a pressing roller structure of an optical oil coating mechanism of the present utility model.

[0023] Figure 5 It is a schematic structural diagram of the moving direction of a base material of an optical oil coating mechanism of the present utility model.

[0024] In the figure, 1, guiding support plate; 2, driving rotating shaft; 3, transmission belt; 4, closing plate; 5, rotating sleeve; 6, pressure cylinder; 7, cleaning plate; 8, pressing roller structure; 81, connecting shaft; 82, spring pressing rod; 83, rubber pressing roller; 9, extension rod. Detailed Embodiment

[0025] The following will further elaborate on the present utility model in conjunction with the drawings.

[0026] Embodiment:

[0027] Referring to Figures 1 - 5 , an optical oil coating mechanism disclosed by the present utility model includes a guiding support plate 1. Driving rotating shafts 2 are arranged at both ends of the guiding support plate 1. A transmission belt 3 is sleeved on the outer surface of the guiding support plate 1. The guiding support plate 1 is arc-shaped. Closing plates 4 are arranged on both sides of the inner arc surface of the guiding support plate 1. A rotating sleeve 5 is jointly arranged on the corresponding sides of the two closing plates 4. A pressure cylinder 6 is arranged on the outer surface of the rotating sleeve 5;

[0028] Extension rods 9 are arranged on both sides of one of the driving rotating shafts 2. A cleaning plate 7 is jointly arranged at one ends of the two extension rods 9. A pressing roller structure 8 is jointly arranged on the opposite sides of the two extension rods 9.

[0029] In this embodiment, when applying oil to the fabric, the fabric is inserted into the position between the conveyor belt 3 and the pressure cylinder 6 from the straight edge of the guiding support plate 1, as Figure 5 shown, and as Figure 2 shown, the guiding support plate 1 and the two closing plates 4 together form a receiving cavity, and the inside of the receiving cavity stores varnish. At this time, by driving the rotation of the rotating shaft 2 and the rotating sleeve 5, the fabric is driven to move, so that the fabric moves along A1 under the influence of the pressure cylinder 6 and the conveyor belt 3 (A1: the movement track of the fabric when brushing varnish). Since the fabric will pass through the varnish when moving along the A1 direction, a large amount of varnish will be coated on the surface of the fabric at this time. When the fabric passes through the pressure cylinder 6 and the conveyor belt 3, it will be subjected to the pressure of the pressure roller structure 8 to extrude the fabric, which can effectively make the varnish penetrate the fabric and also extrude the excess varnish on the surface of the fabric, preventing the problem of slow drying speed of the varnish due to too much varnish on the surface of the fabric, and the extruded material can effectively slide into the cavity formed by the guiding support plate 1 and the two closing plates 4 along the arc of the conveyor belt 3, achieving the problem of avoiding varnish waste;

[0030] In summary, since the fabric substrate directly passes through the varnish material, not only can the fabric be fully contacted with the varnish, but also when the fabric passes through the varnish, the varnish itself is stirred to avoid the problem of condensation due to too long standing time of the varnish.

[0031] In a further preferred embodiment of the present invention, as Figures 1 - 5 shown, the pressure roller mechanism includes a connecting shaft 81, the connecting shaft 81 is rotatably connected to the side wall of the extension rod 9, a spring pressure rod 82 is arranged on the outer peripheral wall of the connecting shaft 81, and a pressure rubber roller 83 is arranged at one end of the spring pressure rod 82. The connecting shaft 81 is provided for rotatably connecting the spring pressure rod 82 and the extension rod 9, and the two spring pressure rods 82 are used for installing the pressure rubber roller 83.

[0032] In this embodiment, when the fabric passes through the position where the pressure cylinder 6 and the conveyor belt 3 are in contact, the pressure rubber roller 83 is pressed on the surface of the fabric through the arrangement of the spring pressure rod 82, and since the connecting shaft 81 and the extension rod 9 are rotatably connected, the pressure rubber roller 83 will also be affected by gravity, further increasing the pressure on the fabric, so that the varnish can quickly penetrate the fabric and improve the extrusion efficiency of the varnish, preventing too much varnish on the surface of the fabric.

[0033] In a further preferred embodiment of the present invention, as Figures 1 - 5 shown, the axis line of the rotating sleeve 5 is on the same straight line as the axis line of the inner arc surface of the guiding support plate 1, and the outer wall of the pressure cylinder 6 is in contact with the outer wall of the conveyor belt 3.

[0034] In this embodiment, since the axes of the rotating sleeve 5 and the inner arc surface of the guiding support plate 1 are on the same straight line, the distances from the pressure cylinder 6 to the inner arc surface of the guiding support plate 1 are equal. When guiding the fabric, the pressures on each position of the fabric are equal, so as to achieve the effect of making the conveying of the fabric more stable.

[0035] In a further preferred embodiment of the present utility model, as Figures 1 - 5 shown, the cleaning plate 7 is rotatably connected to the two extension rods 9 through a through shaft. One side of the cleaning plate 7 is in contact with the outer wall of the pressure cylinder 6. Since the cleaning plate 7 is installed at one end of the extension rod 9 away from the driving rotating shaft 2 through the through shaft, and the extension rod 9 is rotatably connected to the driving rotating shaft 2, the cleaning plate 7 will always be in contact with the outer wall of the pressure cylinder 6 under the action of gravity. At this time, during the rotation of the pressure cylinder 6, the varnish on the surface of the pressure cylinder 6 can be scraped off, so that the varnish accumulates and flows into the cavity formed by the guiding support plate 1 and the closing plate 4 along the surface of the pressure cylinder 6.

[0036] In this embodiment, the cleaning plate 7 is installed at one end of the extension rod 9 away from the driving rotating shaft 2 through a through shaft, and the extension rod 9 is rotatably connected to the driving rotating shaft 2. Under the action of gravity, the cleaning plate 7 will always be in contact with the outer wall of the pressure cylinder 6. By setting the bottom surface of the cleaning plate 7 to be in contact with the outer wall of the pressure cylinder 6, during the rotation of the pressure cylinder 6, the varnish on the surface of the pressure cylinder 6 can be scraped off.

[0037] In a further preferred embodiment of the present utility model, as Figures 1 - 5 shown, the cavity formed by the closing plate 4 and the guiding support plate 1 is provided with UV varnish.

[0038] In this embodiment, through the setting of the closing plate 4 and the guiding support plate 1, the varnish is stored, so that the fabric can be in full contact with the varnish during the process of passing through the cavity, and the varnish is stirred to prevent the problem of static condensation of the varnish.

[0039] In a further preferred embodiment of the present utility model, as Figures 1 - 5 shown, driving motors are provided on the side walls of both the driving rotating shaft 2 and the rotating sleeve 5 (wherein the driving motor is prior art, so it is not marked in the figure).

[0040] In this embodiment, the driving motors are provided to provide power for the driving rotating shaft 2 and the rotating sleeve 5.

[0041] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A varnish coating mechanism, characterized in that, It includes a guiding support plate (1), driving rotating shafts (2) are arranged at both ends of the guiding support plate (1), a transmission belt (3) is sleeved on the outer surface of the guiding support plate (1), the guiding support plate (1) is arranged in an arc shape, closing plates (4) are arranged on both sides of the inner arc surface of the guiding support plate (1), a rotating sleeve (5) is jointly arranged on the corresponding sides of the two closing plates (4), and a pressure cylinder (6) is arranged on the outer surface of the rotating sleeve (5); Extension rods (9) are arranged on both sides of one of the driving rotating shafts (2), a cleaning plate (7) is jointly arranged at one ends of the two extension rods (9), and a pressing roller structure (8) is jointly arranged on the opposite sides of the two extension rods (9).

2. The varnish coating mechanism according to claim 1, characterized in that, The pressing roller mechanism includes a connecting shaft (81), the connecting shaft (81) is rotationally connected to the side wall of the extension rod, a spring pressing rod (82) is arranged on the outer peripheral wall of the connecting shaft (81), and a pressing rubber roller (83) is arranged at one end of the spring pressing rod (82).

3. The varnish coating mechanism according to claim 2, characterized in that, The axis line of the rotating sleeve (5) and the axis line of the inner arc surface of the guiding support plate (1) are on the same straight line, and the outer wall of the pressure cylinder (6) is in contact with the outer wall of the transmission belt (3).

4. The varnish coating mechanism according to claim 3, characterized in that, The cleaning plate (7) is rotationally connected to the two extension rods (9) through a through shaft, and one side of the cleaning plate (7) is attached to the outer wall of the pressure cylinder (6).

5. A varnish coating mechanism according to claim 4, characterized in that, UV varnish is provided in the cavity formed by the closing plate (4) and the guiding support plate (1).

6. The varnish coating mechanism according to claim 5, characterized in that, Driving motors are arranged on the side walls of the driving rotating shaft (2) and the rotating sleeve (5).

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