PVC color film embossing device

Abstract

This utility model discloses a PVC color film embossing device, including: a rotating base, an impression roller, a sliding guide wheel, and several piston plates. The impression roller is rotatably mounted inside the rotating base, and its inner side is provided with several piston grooves, in which piston plates are slidably installed. The sliding guide wheel is fixedly set inside the rotating base, and its surface is provided with an annular groove. A sliding pin is connected to the lower end of the piston plate, and the sliding pin is slidably sleeved in the annular groove. A printing sleeve is sleeved on the outside of the impression roller, and the surface of the printing sleeve is provided with several printing plates and printing lines. During rotation, the printing sleeve contacts an oil-collecting cotton strip located on the top of the rotating base to absorb ink. The sliding guide wheel drives the piston plates to reciprocate through an eccentric arrangement, realizing dynamic adjustment of ink absorption and release of the printing lines. This device has a compact structure and strong linkage, and can achieve precise control of the embossing depth and ink volume, improving the clarity, three-dimensionality, and printing consistency of the color film pattern.

Description

Technical Field

[0001] This utility model relates to the field of embossing equipment technology, specifically a PVC colored film embossing device. Background Technology

[0002] PVC colored film, a functional surface material widely used in home decoration, furniture coating, and advertising materials, directly affects the decorative effect and market competitiveness of products through the quality of its surface patterns and textures. To enhance the aesthetics and three-dimensionality of PVC colored film, embossing is typically applied to the film surface to create patterns with ink transfer, three-dimensional textures, or light and shadow effects.

[0003] Existing PVC film embossing equipment generally uses a relatively fixed embossing roller. A surface pattern mold is applied directly to the film surface under high temperature and pressure or rolling conditions to achieve pattern transfer. Some designs incorporate a printing sleeve outside the embossing roller and use sponge strips for ink supply to enhance color reproduction and depth. While these devices can achieve basic pattern embossing and ink coating, they still suffer from the following typical problems:

[0004] Traditional devices generally rely on simple contact adsorption between the outer surface of the printing sleeve and the ink storage cotton strip to achieve ink transfer. The amount of ink absorbed is limited by the external contact pressure and the structure of the device, and cannot be dynamically adjusted. This can easily lead to problems such as localized light ink color or excessive ink application, affecting the consistency of the finished product.

[0005] Common embossing rollers have a rigid, integrated structure with a fixed pattern texture depth. They also cannot achieve independent pressure control for different film materials or pattern areas, resulting in insufficient three-dimensionality of the formed pattern and limited decorative effect.

[0006] Currently, the printing structure and ink supply structure in most equipment are designed separately, which is complex, occupies a lot of space, and is difficult to assemble and debug. At the same time, the adjustment flexibility is insufficient, and it cannot adapt to the rapid switching of different layer thicknesses, ink viscosities and decorative effects, which restricts the applicability of the equipment.

[0007] Therefore, the industry urgently needs a PVC color film embossing device with high integration, dynamic ink adsorption and precise release control capabilities, and an embossing depth adjustment structure to achieve refined pattern transfer, diversified decorative effects, and improved automation of the production process. Utility Model Content

[0008] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0009] Therefore, the technical solution adopted by this utility model is as follows: a PVC colored film embossing device, comprising: a rotating base, an embossing roller, a sliding guide wheel, and several piston plates. The embossing roller is rotatably mounted on the inner side of the rotating base, and multiple piston grooves are provided on the inner side, with a piston plate slidably sleeved in each piston groove.

[0010] Specifically, by using the radial sliding contact of the piston plate inside the impression roller, the impression depth can be dynamically adjusted during the pattern transfer process, thereby achieving pressure control at different locations and enhancing the three-dimensional effect of the pattern.

[0011] In a preferred embodiment, the guide wheel is disposed within the rotating sleeve and eccentrically arranged on its axis. An annular groove is formed on its surface, and the sliding pins at the lower part of each piston plate are slidably engaged in the annular groove. When the guide wheel rotates, it drives the sliding pins to reciprocate along the annular groove, thereby driving the piston plates to move up and down.

[0012] Specifically, the structure utilizes the principle of eccentric wheel transmission to achieve synchronous movement of the piston plate, ensuring dynamic ink control and floating printing of the pattern area during the printing process.

[0013] In a preferred example, a printing sleeve is fitted onto the surface of the printing roller, and multiple printing plates are provided on the outer surface of the printing sleeve. The printing plates are provided with patterned lines, which are composed of lines formed by an array of micropores.

[0014] Specifically, the microporous structure enhances ink storage and penetration capabilities. Combined with the negative pressure ink absorption and positive pressure ink discharge process of the piston plate, it enables uniform ink release and deep penetration into the pattern area, improving the clarity and color saturation of the printed pattern.

[0015] In a preferred example, the top surface of the rotating sleeve is provided with an oil-retaining strip, which has a porous sponge structure and is used to store printing ink. During rotation, the printing sleeve slides in contact with the oil-retaining strip, achieving continuous ink supply to the printing plate and the surface of the printed lines.

[0016] Specifically, by combining sliding contact and patterned line structure, the adaptive absorption capacity of the pattern area for ink is enhanced, reducing ink breaks and heavy ink effects caused by uneven ink supply.

[0017] In a preferred example, the side of the guide wheel is provided with a pin structure, the pin passing through an adjustment groove opened on the surface of the rotating sleeve seat, and the pin can slide radially to adjust the eccentricity of the guide wheel.

[0018] Specifically, by manually adjusting the eccentric distance of the guide rollers, the stroke of the piston plate can be controlled, thereby precisely controlling the ink absorption and printing depth of the pattern lines, and achieving adjustability of layer thickness and pattern density.

[0019] In a preferred example, the rotating base has support rods on both sides to support the entire embossing device structure, and the bottom end of the embossing roller is exposed from the bottom of the rotating base for easy connection to an external drive system.

[0020] Specifically, the support poles and exposed structures enhance the modular integration of the device, facilitating installation and commissioning and meeting the rapid configuration requirements of production lines.

[0021] In a preferred example, the printing sleeve and the printing plate are integrally formed, with the surface of the printing plate being higher than the surface of the printing sleeve.

[0022] Specifically, this design ensures that the embossing effect is concentrated on the pattern area, improving the molding pressure and texture clarity of the pattern on the PVC film.

[0023] In summary, this utility model achieves dynamic linkage control of pattern embossing and ink coating on the surface of PVC colored film by combining the eccentric drive structure of the sliding guide wheel with the piston follower component. It has the advantages of clear patterns, precise ink volume, flexible adjustment and compact structure, and is particularly suitable for the technical transformation and upgrading of high-end decorative film processing and pattern embossing equipment.

[0024] The beneficial effects achieved by this utility model are as follows:

[0025] 1. In this invention, by linking the piston plate and the eccentric structure of the guide wheel, not only is synchronous rolling of the pattern area in the printing sleeve achieved during the rotation of the printing roller, but also dynamic ink absorption and precise ink release of the printing lines are achieved through the negative pressure adsorption-positive pressure discharge process within the piston plate cavity. Compared to the traditional method that relies solely on ink contact for liquid supply, this structure improves ink utilization while making the pattern printing more uniform and full, making it particularly suitable for high-precision layers and custom decoration of color films.

[0026] 2. This utility model integrates functions such as printing, ink supply, and ink volume adjustment into a single structure. It employs a modular design combining a guide wheel, piston drive, and printing sleeve, which not only saves space but also facilitates adjustment and maintenance. By adjusting the eccentricity of the guide wheel, the printing stroke and ink release of the piston plate can be easily controlled, allowing for rapid adjustments based on different printing depths and color layer thicknesses. This makes it suitable for industrial scenarios involving printing various types of PVC film patterns, improving production flexibility and quality consistency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the embossing roller structure according to an embodiment of the present invention;

[0029] Figure 3This is a schematic diagram of the cross-sectional structure of an impression roller according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the guide wheel and piston plate structure according to one embodiment of the present invention;

[0031] Figure 5 This is one embodiment of the present utility model. Figure 2 A schematic diagram of the structure at point A.

[0032] Figure label:

[0033] 100. Rotating sleeve base; 110. Frame rod; 120. Oil storage cotton strip; 200. Impression roller; 210. Printing sleeve; 220. Piston groove; 211. Printing plate; 212. Printing line; 300. Guide roller; 310. Ring groove; 400. Piston plate; 410. Sliding pin rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0035] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0036] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a PVC colored film embossing device.

[0037] Combination Figures 1-5 As shown, the present invention provides a PVC color film embossing device, including: a rotating base 100, an embossing roller 200, a guide wheel 300, and several piston plates 400.

[0038] The impression roller 200 is rotatably mounted inside the rotating sleeve 100. The impression roller 200 has a cylindrical structure, and its central axis is coaxial with the rotating sleeve 100, allowing it to rotate freely within the rotating sleeve 100. Several piston grooves 220 are formed on the inner side of the impression roller 200 along the circumferential direction to accommodate multiple piston plates 400.

[0039] Each piston plate 400 is slidably sleeved inside the piston groove 220, and the piston plate 400 can reciprocate in the radial direction within the piston groove 220. The lower end of the piston plate 400 is provided with a sliding pin 410, which is slidably engaged with the annular groove 310 on the guide wheel 300.

[0040] The guide wheel 300 is fixedly installed on the inner side of the rotating sleeve base 100, specifically at an eccentric position away from the axis of the rotating sleeve base 100, and located on the side away from the oil storage cotton strip 120 on the top surface of the rotating sleeve base 100. The surface of the guide wheel 300 is provided with an annular groove 310, and multiple sliding pins 410 are inserted into the annular groove 310, and reciprocate as the guide wheel 300 rotates, thereby driving the piston plate 400 to move up and down reciprocally.

[0041] The outer surface of the impression roller 200 is fitted with a printing sleeve 210, which is a sleeve-type rubber sleeve structure that fits tightly with the impression roller 200. The surface of the printing sleeve 210 is provided with several printing plates 211, each having a raised structure relative to the surface of the printing sleeve 210, used for imprinting patterns onto the PVC film surface. The surface of the printing plates 211 is also provided with printing lines 212, which are formed by a microporous array arrangement to create continuous lines for absorbing ink and transferring fine patterns.

[0042] An oil-retaining cotton strip 120 is fixedly installed on the top surface of the rotating sleeve 100. The oil-retaining cotton strip 120 has a porous sponge structure and is used to store printing oil. When the printing roller 200 rotates and drives the printing sleeve 210 to rotate, the surface of the printing sleeve 210 contacts the bottom surface of the oil-retaining cotton strip 120, and the printing plate 211 and the printing line 212 acquire ink through adsorption.

[0043] During the printing process, the guide roller 300 rotates due to its eccentric arrangement, and the sliding pin 410 reciprocates along the annular groove 310, thereby driving the piston plate 400 to perform radial reciprocating motion within the piston groove 220. The retraction of the piston plate 400 creates a negative pressure, thereby generating ink absorption within the printing lines 212; while the forward movement of the piston plate 400 applies a positive pressure, causing the ink absorbed within the printing lines 212 to be evenly released onto their surface, improving the transfer effect.

[0044] like Figure 2 and Figure 5 As shown, the pattern line 212, in conjunction with the microporous structure, enables the ink to exhibit a mesh coating effect during the release process, which helps to achieve a rich sense of layering in the pattern details and enhances the visual texture of the color film surface.

[0045] like Figure 3 As shown, the bottom end of the impression roller 200 is exposed outside the rotating sleeve 100 so as to facilitate connection with an external transmission mechanism and drive it to rotate.

[0046] like Figure 1 As shown, the rotating base 100 is symmetrically and rotatably mounted with support rods 110 on both sides. The support rods 110 are used to support and adjust the overall position of the embossing mechanism, thereby improving the stability and adaptability of the device.

[0047] like Figure 4As shown, the guide roller 300 has an adjustment pin on its side, and the rotating sleeve 100 has an adjustment groove at a corresponding position that engages with the pin. By adjusting the radial position of the pin within the adjustment groove, the eccentricity of the guide roller 300 can be changed, thereby altering the vertical stroke of the piston plate 400. A greater stroke of the piston plate 400 results in stronger contact force between the printing plate 211 and the printing lines 212 and the film material, leading to increased ink absorption and printing depth. Conversely, a smaller stroke allows for shallow printing and light ink application, adapting to different printing layers or effect requirements.

[0048] In addition, the printing sleeve 210 and the printing plate 211 are integrally formed, and the surface of the printing plate 211 is higher than the outer surface of the printing sleeve 210 to ensure that the pattern printing has a good three-dimensional highlighting effect.

[0049] In summary, through the above structural design, this utility model achieves dual linkage control of embossing pattern and ink supply, which has beneficial effects such as good embossing effect, uniform ink transfer, high structural integration, and strong adjustment flexibility, and is suitable for high-quality decorative processing of PVC color film surface.

[0050] Working principle and usage process of this utility model:

[0051] This invention integrates an embossing roller, a piston drive structure, a printing sleeve, an oil storage cotton strip, and an eccentric guide wheel mechanism to achieve the transfer of embossed patterns on the surface of PVC colored film, and can control the amount of printing oil absorbed, thereby achieving a precise, three-dimensional, and adjustable embossed decorative effect.

[0052] The specific working principle is as follows:

[0053] Rotary drive and embossing process

[0054] The impression roller 200 is installed inside the rotating sleeve 100 and rotates around its axis. A printing sleeve 210 is fitted on its surface. The outer surface of the printing sleeve 210 is provided with multiple raised printing plates 211 and micro-perforated printing lines 212. During the rotation of the impression roller 200, the printing plates 211 and the printing lines 212 periodically contact the PVC colored film to achieve the imprinting of the pattern.

[0055] Ink adsorption and transfer: An oil-retaining cotton strip 120 is fixed on the rotating sleeve 100. The oil-retaining cotton strip 120 has a porous sponge structure and is used to absorb and store printing ink. During the rotation of the printing sleeve 210, its surface slides in contact with the bottom surface of the oil-retaining cotton strip 120, thereby adsorbing the ink onto the surface of the printing plate 211 and the printing lines 212.

[0056] The piston plate adjusts the ink volume by following the movement: When the guide wheel 300 rotates due to its eccentric arrangement, the sliding pin 410 moves back and forth along the annular groove 310, thereby driving the piston plate 400 to slide up and down, realizing the dynamic adjustment of the pressure or stroke of the printing plate 211 and the printing line 212.

[0057] Adjustable eccentricity control function: The guide wheel 300 is connected to the adjusting groove of the rotating sleeve seat 100 via a side screw. By manually adjusting the radial position of the screw, the eccentricity of the guide wheel 300 can be changed, thereby controlling the stroke of the piston plate 400. The larger the piston plate stroke, the stronger the contact force between the printing plate and the printing line, and the more fully the ink is absorbed, which is suitable for dark or high-saturation patterns; conversely, it is used for thin layers.

[0058] Usage process

[0059] Assembly preparation: Fit the printing sleeve 210 onto the outer periphery of the printing roller 200, and ensure that the surfaces of the printing plate 211 and the printing line 212 are intact and clean. Install the piston plates 400 one by one into the piston grooves 220, so that the sliding pin 410 is inserted into the annular groove 310 on the guide wheel 300.

[0060] Ink storage pretreatment: Inject printing oil into the inside of the oil storage cotton strip 120 so that it can be fully absorbed to form an ink storage layer.

[0061] Equipment startup: The driving roller 200 rotates, causing the printing sleeve 210 to slide into contact with the oil storage strip 120, thus transferring ink to the surface of the printing plate 211. At the same time, the piston plate 400 retracts radially inside the corresponding piston groove 220, creating a negative pressure inside the piston plate 400. This causes the printing line 212 to fully absorb the ink on the surface of the oil storage strip 120 under negative pressure. During rolling, the piston plate 400, after absorbing the ink, moves radially toward the printing sleeve 210, causing positive pressure to discharge the oil inside the printing line 212, ensuring that the surface of the printing line 212 is fully coated with oil. The printing sleeve 210 then rolls and presses the printing material.

[0062] Pattern transfer: The printing plate 211 and the printing lines 212 are pressed onto the surface of the PVC film in an oil-containing state to achieve the desired pattern embossing. The eccentric structure of the guide roller 300 controls the up and down movement of the piston plate, thereby achieving floating contact or deep pressing of the printing lines 212, and realizing dynamic adjustment of ink absorption and embossing effect.

[0063] Adjustment and maintenance: To change the printing intensity or ink volume, the eccentricity of the guide roller 300 can be adjusted by adjusting the screw pin, thereby precisely controlling the printing pressure effect. After use, clean the surface of the printing sleeve 210 and the ink reservoir strip 120, and replace the ink regularly.

[0064] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A PVC colored film embossing device, characterized in that, include: The assembly includes a rotating base (100), an impression roller (200), a guide wheel (300), and several piston plates (400). The impression roller (200) is rotatably mounted inside the rotating base (100), and several piston grooves (220) are provided on the inner side of the impression roller (200). Each piston plate (400) is slidably fitted onto the inner side of each piston groove (220). The guide wheel (300) is fixed to the inner side of the rotating base (100), and an annular groove (310) is provided on the surface of the guide wheel (300). The piston plates (400) are slidably fitted onto the inner side of each piston groove (220). A sliding pin (410) is fixedly installed on the surface of the roller (200), and the sliding pin (410) is slidably sleeved on the inner side of the annular groove (310); a printing sleeve (210) is sleeved on the surface of the printing roller (200), and the surface of the printing sleeve (210) is provided with a number of printing plates (211) arranged corresponding to the piston groove (220); an oil storage cotton strip (120) is fixedly installed on the top surface of the rotating sleeve seat (100); the axis of the guide wheel (300) is offset from the axis of the rotating sleeve seat (100) and is located on the side away from the oil storage cotton strip (120).

2. The PVC color film embossing device according to claim 1, characterized in that, The rotating base (100) is rotatably mounted on both sides of the bracket (110), and the bottom end of the impression roller (200) is exposed outside the rotating base (100).

3. The PVC film embossing device according to claim 1, characterized in that, The outer periphery of the printing roller (200) slides against the inner wall of the rotating sleeve (100), and the surface of the printing sleeve (210) slides against the bottom surface of the oil storage cotton strip (120) to absorb the printing oil inside the oil storage cotton strip (120).

4. The PVC color film embossing device according to claim 1, characterized in that, The oil-storage cotton strip (120) has a porous sponge structure and is used for storing printing oil.

5. The PVC color film embossing device according to claim 1, characterized in that, The surface of the printing plate (211) is provided with patterned lines (212), which are lines formed by an array of micropores.

6. The PVC color film embossing device according to claim 1, characterized in that, The printing sleeve (210) is a rubber sleeve structure, and the printing sleeve (210) and the printing plate (211) are integrally formed structures, with the surface of the printing plate (211) protruding from the surface of the printing sleeve (210).

7. The PVC color film embossing device according to claim 1, characterized in that, The side of the guide wheel (300) is provided with a screw that engages with the surface of the rotating sleeve (100), and the surface of the rotating sleeve (100) is provided with an adjustment groove for guiding the screw to slide radially.

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