UV molding press for producing photoetching embossment holographic patterns

Abstract

The utility model discloses a UV moulding press for producing photoetching embossment holographic patterns, which comprises a bottom frame, a plate roller and a UV coating mechanism, an electric heating rod is mounted in the bottom frame, and two ball bearings are symmetrically mounted at two ends of the electric heating rod respectively; the plate roller is arranged on the outer side of the electric heating rod in a sleeving mode, the two meshing discs are symmetrically distributed and installed at the two ends of the plate roller correspondingly, and meanwhile the inner walls of the two meshing discs are rotationally connected with the two ball bearings correspondingly. The electric heating rod is arranged, the arc-shaped heat dissipation plates are arranged on the outer side of the electric heating rod, the electric heating rod does not make direct contact with the printing roller in the using process, a cavity exists between the electric heating rod and the inner wall of the printing roller, heat is transmitted to the printing roller in a radiation mode, and compared with a traditional oil heating mode, the weight of the printing roller can be effectively reduced; and no pollution is caused, and the maintenance cost is lower.

Description

Technical Field

[0001] This utility model relates to the technical field of UV molding machines, specifically a UV molding machine for producing photolithographic relief holographic patterns. Background Technology

[0002] A UV molding machine is a device specifically designed for pressing UV-curable resin. Through a specific process, the UV molding machine presses the UV-curable resin into a mold cavity and cures it using UV light, thereby producing a finished product with high precision, high surface smoothness, and strong durability. Referring to announcement number "CN207594511U", the disclosed "UV molding machine" includes a working platform and a feeding unit and a receiving unit set on the working platform. The working platform is sequentially equipped with a UV coating tank, a nickel plate roller, and a UV lamp along the conveying direction of the PET film. The UV coating tank contains UV varnish for coating the PET film. The nickel plate roller is laser-engraved with several laser patterns for transferring the patterns onto the UV varnish coated on the PET film. The UV lamp's illumination direction is directly opposite the nickel plate roller.

[0003] Currently, UV molding machines typically require heating of the printing roller during use to ensure uniform resin distribution and rapid curing, thereby improving production efficiency and product quality. However, the internal heating device is usually integrated with the printing roller, making it inconvenient to replace the roller separately. When changing to a different printing roller for different transfer content, the entire roller needs to be replaced, which is inconvenient. Summary of the Invention

[0004] The purpose of this utility model is to provide a UV molding machine for producing photolithographic relief holographic patterns, so as to solve the problem mentioned in the background art that the heating device and the printing roller of the currently used UV molding machine are usually designed as an integrated unit, which makes it inconvenient to replace the printing roller separately. When it is necessary to change the printing roller with different transfer content, the whole machine needs to be replaced, which is inconvenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A UV molding machine for producing photolithographic relief holographic patterns includes a base frame, a printing roller, and a UV coating mechanism. The base frame is equipped with an electric heating rod, and two ball bearings are symmetrically distributed at both ends of the electric heating rod. The printing roller is sleeved on the outside of the electric heating rod, and two meshing discs are symmetrically distributed at both ends of the printing roller. The inner walls of the two meshing discs are rotatably connected to the two ball bearings.

[0007] As a further embodiment of this utility model: a pressure roller is provided above the printing roller, and two sliders are respectively installed at both ends of the pressure roller, and the two sliders are respectively connected to two side supports; the pressure roller is located inside the top frame, and the top frame is installed on the top of the base frame;

[0008] As a further embodiment of this utility model: a third guide roller is installed at one end of the interior of the base frame, and a fourth guide roller is installed at the other end of the interior of the base frame, and two of the third guide roller and the fourth guide roller are symmetrically distributed.

[0009] As a further embodiment of this utility model: the UV coating mechanism is installed at one end of the top of the base frame, and a first guide roller is installed on the top of the base frame, while a second guide roller is installed on one side of the first guide roller.

[0010] As a further embodiment of this utility model: a drying rack is installed at the other end of the top of the base frame, and a UV curing lamp is installed on one side of the inside of the drying rack; a rear support is installed on the top of the drying rack, and a fifth guide roller is installed at the upper inside of the rear support.

[0011] As a further embodiment of this utility model: two first motors are respectively installed on both sides of the base frame, and the output shaft of each first motor is respectively connected to a drive wheel, and each drive wheel is respectively engaged with a meshing disc.

[0012] As a further embodiment of this utility model: the axis of the heating rod, the axis of the ball bearing and the axis of the printing roller are all on the same horizontal straight line, and the axis of the printing roller and the axis of the meshing disc are on the same horizontal straight line. At the same time, the meshing disc, the drive wheel and the printing roller form a rotating structure.

[0013] As a further embodiment of this utility model: a second motor is installed on the top of each of the side brackets, and the output shaft of each second motor is connected to a lead screw drive, while each lead screw is threadedly connected to a slider.

[0014] As a further embodiment of this utility model: the lead screw, slider and pressure roller form a lifting structure, and the transverse axis of the pressure roller is parallel to the axis of the printing roller.

[0015] As a further embodiment of this utility model: two adjusting cylinders are symmetrically distributed at the top of both ends of the rear support, and the extended ends of the two adjusting cylinders are rotatably connected to the two ends of the sixth guide roller respectively.

[0016] As a further embodiment of this utility model: the adjusting cylinder and the adjusting cylinder form a lifting structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model is equipped with an electric heating rod, a printing roller, and a meshing disc. The electric heating rod, printing roller, and meshing disc are separate structures, which have high ease of disassembly and assembly. When working, the printing roller rotates with the meshing disc, while the electric heating rod remains stationary. When it is necessary to change the printing roller with different embossing patterns, the printing roller can be replaced separately by disassembling the meshing discs at both ends, which improves the ease of use.

[0019] This invention features an electric heating rod with several arc-shaped heat dissipation plates on its outer side. During use, the electric heating rod does not directly contact the printing roller, and there is a cavity between the electric heating rod and the inner wall of the printing roller. Heat is transferred to the printing roller through radiation. Compared with the traditional oil heating method, this invention can effectively reduce the weight of the printing roller, and it is pollution-free and has lower maintenance costs.

[0020] This utility model is equipped with a fifth guide roller, a sixth guide roller, and an adjusting cylinder. The distance between the fifth guide roller and the sixth guide roller can be adjusted by adjusting the adjusting cylinder. When changing the substrate, the substrate passing through the drying rack from bottom to top can be clamped, which facilitates subsequent operations and improves the ease of use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a utility model Figure 1 Another perspective view.

[0023] Figure 3 This is a utility model Figure 2 Another perspective view.

[0024] Figure 4 This is a utility model Figure 3 Another perspective view.

[0025] Figure 5 This is a utility model Figure 4 Cross-sectional view along the AA direction.

[0026] Figure 6 This is a three-dimensional structural diagram of the printing roller in this utility model.

[0027] Figure 7 This is a utility model Figure 6 Enlarged view of point B in the image.

[0028] In the diagram: 1-Base frame, 2-Heating rod, 3-Ball bearing, 4-Pattern roller, 5-Meshing disc, 6-First motor, 7-Drive wheel, 8-Side support, 9-Second motor, 10-Lead screw, 11-Slider, 12-Pressure roller, 13-UV coating mechanism, 14-First guide roller, 15-Second guide roller, 16-Third guide roller, 17-Fourth guide roller, 18-Drying rack, 19-UV curing lamp, 20-Rear support, 21-Fifth guide roller, 22-Sixth guide roller, 23-Adjusting cylinder, 24-Top frame. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-7 In this embodiment of the present invention, a UV molding machine for producing photolithographic relief holographic patterns includes a base frame 1, a printing roller 4, and a UV coating mechanism 13. The base frame 1 has an electric heating rod 2 installed inside, with two ball bearings 3 symmetrically distributed at both ends of the heating rod 2. The printing roller 4 is sleeved on the outside of the heating rod 2, with two meshing discs 5 symmetrically distributed at both ends of the printing roller 4, and the inner walls of the two meshing discs 5 are rotatably connected to the two ball bearings 3. A pressure roller 12 is provided above the printing roller 4, with two sliders 11 installed at both ends of the pressure roller 12, and the two sliders 11 are connected to two side supports 8. The pressure roller 12 is located inside a top frame 24. The top frame 24 is installed on the top of the base frame 1; a third guide roller 16 is installed at one end of the interior of the base frame 1, and a fourth guide roller 17 is installed at the other end of the interior of the base frame 1, with two of the third guide roller 16 and the fourth guide roller 17 symmetrically distributed; the UV coating mechanism 13 is installed at the top of the base frame 1, and a first guide roller 14 is installed at the top of the base frame 1, while a second guide roller 15 is installed on one side of the first guide roller 14; a drying rack 18 is installed at the other end of the top of the base frame 1, and a UV curing lamp 19 is installed on one side of the interior of the drying rack 18; a rear support 20 is installed at the top of the drying rack 18, and a fifth guide roller 21 is installed at the upper end of the interior of the rear support 20.

[0031] More specifically, the UV coating mechanism 13 is an existing device that evenly applies UV varnish to the substrate.

[0032] As a further explanation of this embodiment, the substrate is guided by the first guide roller 14, the second guide roller 15 and the third guide roller 16 to ensure that the substrate is in close contact with the UV coating mechanism 13.

[0033] Two first motors 6 are installed on both sides of the base frame 1, and the output shaft of each first motor 6 is connected to a drive wheel 7. At the same time, each drive wheel 7 is connected to a meshing disc 5.

[0034] More specifically, the first motor 6 drives the corresponding drive wheel 7 to rotate.

[0035] As a further explanation of this embodiment, the two first motors 6 are servo-linked.

[0036] In this embodiment, the axis of the heating rod 2, the axis of the ball bearing 3, and the axis of the printing roller 4 are all on the same horizontal straight line, and the axis of the printing roller 4 and the axis of the meshing disc 5 are on the same horizontal straight line. At the same time, the meshing disc 5, the drive wheel 7, and the printing roller 4 form a rotating structure.

[0037] More specifically, the outer side of the heating rod 2 has several arc-shaped heat dissipation fins distributed at equal angles about its transverse axis, which are used to increase the heat dissipation area and efficiency, so that the heat can be transferred to the printing roller 4 more evenly through radiation.

[0038] As a further explanation of this embodiment, the drive wheel 7 and the printing roller 4 are driven to rotate as a whole by the drive wheel 7 in conjunction with the meshing disc 5.

[0039] In this embodiment, a second motor 9 is installed on the top of each side bracket 8, and the output shaft of each second motor 9 is connected to a lead screw 10 for transmission. At the same time, each lead screw 10 is threadedly connected to a slider 11.

[0040] More specifically, the second motor 9 drives the corresponding lead screw 10 to rotate.

[0041] As a further explanation of this embodiment, the slider 11 is connected to the side support 8 by a sliding connection, and the slider 11 is connected to the pressure roller 12 by a rotating connection.

[0042] In this embodiment, the lead screw 10, slider 11 and pressure roller 12 form a lifting structure, and the transverse axis of the pressure roller 12 is parallel to the axis of the printing roller 4.

[0043] More specifically, the distance between the pressure roller 12 and the printing roller 4 is controlled by rotating the lead screw 10.

[0044] As a further explanation of this embodiment, the substrate is pressed onto the surface of the printing roller 4 by the pressure roller 12, so that the pattern on the surface of the printing roller 4 can be clearly transferred onto the substrate coated with UV varnish.

[0045] In this embodiment, two adjusting cylinders 23 are symmetrically distributed at the top of both ends of the rear support 20, and the extended ends of the two adjusting cylinders 23 are rotatably connected to the two ends of the sixth guide roller 22 respectively; the adjusting cylinders 23 together form a lifting structure.

[0046] More specifically, the sixth guide roller 22 is connected to the adjusting cylinder 23 by a rotatable connection.

[0047] As a further explanation of this embodiment, the distance between the fifth guide roller 21 and the sixth guide roller 22 is adjusted by adjusting the cylinder 23.

[0048] The working principle of this utility model is as follows: Before use, the substrate first passes between the first guide roller 14 and the second guide roller 15, and the front end of the substrate moves downward to fit tightly against the UV coating mechanism 13. Then, the substrate is brought up from the bottom and fits tightly against the third guide roller 16 and passes between the plate roller 4 and the pressure roller 12. The substrate then passes around the two fourth guide rollers 17 from below. Finally, the substrate passes upward through the drying rack 18 and between the fifth guide roller 21 and the sixth guide roller 22. The external power supply is turned on, and the two adjusting cylinders 23 are activated at the same time to push the sixth guide roller 22 down to cooperate with the fifth guide roller 21 to clamp the substrate. Then, the end of the substrate is fixedly connected to the winding device.

[0049] When in use, first start the heating rod 2 to heat the printing roller 4. When the printing roller 4 is heated to the specified temperature, start the two second motors 9 at the same time to drive the two lead screws 10 to rotate synchronously, thereby driving the two sliders 11 and the pressure roller 12 between the two sliders 11 to move down until the substrate is pressed tightly on the surface of the printing roller 4.

[0050] The external winding device is activated to tighten the substrate and keep it taut. Then, the substrate is pulled at a constant speed to move it. At the same time, the UV coating mechanism 13 and the first motor 6 are activated, driving the two drive wheels 7 to rotate synchronously. This, in turn, drives the meshing disc 5 and the printing roller 4 to rotate synchronously. During the uniform movement of the substrate, the bottom surface of the substrate is first evenly coated with UV varnish by the UV coating mechanism 13. Then, the substrate with the UV varnish coated side passes close to the surface of the printing roller 4. At this time, the rotating printing roller 4, in conjunction with the pressure roller 12, transfers the pattern on the surface of the pressure roller 12 onto the UV varnish coated on the surface of the substrate. Then, the UV curing lamp 19 is activated. After the transfer is completed, the substrate passes through the drying rack 18. The ultraviolet rays emitted by the UV curing lamp 19 cause the UV varnish to solidify quickly, thus setting the transferred pattern.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A UV molding machine for producing photolithographic relief holographic patterns, characterized in that: The system includes a base frame (1), a printing roller (4), and a UV coating mechanism (13). The base frame (1) is equipped with an electric heating rod (2), and two ball bearings (3) are symmetrically distributed at both ends of the electric heating rod (2). The printing roller (4) is sleeved on the outside of the electric heating rod (2), and two meshing discs (5) are symmetrically distributed at both ends of the printing roller (4). The inner walls of the two meshing discs (5) are rotatably connected to the two ball bearings (3). The printing roller (4) is provided with a pressure roller (12) above it, and two sliders (11) are respectively installed at both ends of the pressure roller (12), and the two sliders (11) are respectively connected to two side supports (8); the pressure roller (12) is located inside the top frame (24), and the top frame (24) is installed on the top of the base frame (1); The base frame (1) has a third guide roller (16) installed at one end of its interior and a fourth guide roller (17) installed at the other end of its interior. The third guide roller (16) and the fourth guide roller (17) are both symmetrically distributed in twos. The UV coating mechanism (13) is installed at one end of the top of the base frame (1), and a first guide roller (14) is installed on the top of the base frame (1), while a second guide roller (15) is installed on one side of the first guide roller (14). A drying rack (18) is installed at the other end of the top of the base frame (1), and a UV curing lamp (19) is installed on one side of the inside of the drying rack (18); a rear support (20) is installed on the top of the drying rack (18), and a fifth guide roller (21) is installed on the upper inside of the rear support (20).

2. The UV molding machine for producing photolithographic relief holographic patterns according to claim 1, characterized in that: Two first motors (6) are installed on both sides of the base frame (1), and the output shaft of each first motor (6) is connected to a drive wheel (7) for transmission. At the same time, each drive wheel (7) is connected to a meshing disc (5).

3. The UV molding machine for producing photolithographic relief holographic patterns according to claim 1, characterized in that: The axis of the heating rod (2), the axis of the ball bearing (3) and the axis of the printing roller (4) are all on the same horizontal straight line, and the axis of the printing roller (4) and the axis of the meshing disc (5) are on the same horizontal straight line. At the same time, the meshing disc (5), the drive wheel (7) and the printing roller (4) form a rotating structure.

4. The UV molding machine for producing photolithographic relief holographic patterns according to claim 1, characterized in that: Each of the side brackets (8) is equipped with a second motor (9) on its top, and the output shaft of each second motor (9) is connected to a lead screw (10) for transmission, while each lead screw (10) is threadedly connected to a slider (11).

5. A UV molding machine for producing photolithographic relief holographic patterns according to claim 4, characterized in that: The lead screw (10), slider (11) and pressure roller (12) form a lifting structure, and the transverse axis of the pressure roller (12) is parallel to the axis of the printing roller (4).

6. A UV molding machine for producing photolithographic relief holographic patterns according to claim 1, characterized in that: The rear support (20) has two adjusting cylinders (23) symmetrically distributed at the top of both ends, and the extended ends of the two adjusting cylinders (23) are rotatably connected to the two ends of the sixth guide roller (22); The regulating cylinder (23) and the regulating cylinder (23) together form a lifting structure.

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