Seamless molding press based on laser holographic roller

Abstract

The utility model discloses a seamless molding press based on a laser holographic roller. The seamless molding press comprises a rack, an unwinding roller, an embossing rubber roller, a plate roller, a traction rubber roller, a winding roller, a driving mechanism, a UV (ultraviolet) glue feeding mechanism and a UV curing mechanism, the plate roller is a laser holographic roller, and continuous patterns are carved on the roller surface of the laser holographic roller; the axis of the embossing rubber roller, the axis of the laser holographic roller and the axis of the traction rubber roller are sequentially arranged on the same horizontal plane from front to back, the roller surface of the embossing rubber roller is in contact fit with the roller surface of the laser holographic roller, and the laser holographic roller is in contact fit with the traction rubber roller; the UV glue feeding mechanism is arranged above the position between the embossing glue roller and the laser holographic roller, the discharging end of the UV glue feeding mechanism faces the upper portion of the roller face of the laser holographic roller, the UV curing mechanism is installed on the rack and located below the laser holographic roller, and the irradiation direction of the UV curing mechanism faces the lower portion of the roller face of the laser holographic roller. The wind-up roller is arranged above the position between the laser holographic roller and the traction rubber roller.

Description

Technical Field

[0001] The utility model relates to a molding machine, in particular to a seamless molding machine based on a laser holographic roller. Background Art

[0002] The molding machine is a processing equipment used to print patterns on plastic films. The current molding machine includes a frame, an unwinding roller, an embossing rubber roller, a plate roller, a traction rubber roller, a winding roller, and a first driving mechanism capable of driving the plate roller to rotate, and a second driving mechanism capable of driving the winding roller to rotate. The unwinding roller, the embossing rubber roller, the plate roller, the traction rubber roller, and the winding roller can be rotatably arranged on the frame, and the first driving mechanism and the second driving mechanism are both installed on the frame. Usually, the roller surface of the plate roller is engraved with a target pattern, and the plastic film has a coating. When the molding machine is working, the plastic film is released from the unwinding roller, and is embossed in the lamination area between the embossing rubber roller and the plate roller. The plastic film is plastically deformed under the pressure of the embossing rubber roller, and the pattern on the roller surface of the plate roller is embossed onto the plastic film, and then it is traction-conveyed by the traction rubber roller, and finally the film with the printed pattern is wound up by the winding roller. However, a plate seam extending along the axial direction of the plate roller is provided on the roller surface of the plate roller. The plastic film at the plate seam cannot be compressed, resulting in discontinuous bands in the pattern in the axial direction, so that the plastic film cannot generate a continuous pattern after molding. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a seamless die-pressing machine based on a laser holographic roller, which can completely print continuous patterns on a plastic film and avoid the phenomenon of pattern discontinuity caused by the plate seam.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] A seamless die-stamping machine based on a laser holographic roller comprises a frame, an unwinding roller, an embossing rubber roller, a plate roller, a traction rubber roller, a winding roller, a first driving mechanism capable of driving the plate roller to rotate, and a second driving mechanism capable of driving the winding roller to rotate, wherein the unwinding roller, the embossing rubber roller, the plate roller, the traction rubber roller, and the winding roller can be rotatably arranged on the frame, and the first driving mechanism and the second driving mechanism are both installed on the frame, and the machine is characterized in that: it also comprises a UV glue feeding mechanism and a UV curing mechanism; the plate roller is a laser holographic roller, and a continuous pattern is engraved on the roller surface of the laser holographic roller; the axis of the embossing rubber roller, the laser holographic roller, the traction rubber roller, and the winding roller are all rotatably arranged on the frame, and the first driving mechanism and the second driving mechanism are both installed on the frame. The axis of the roller and the axis of the traction rubber roller are arranged in the same horizontal direction from front to back, the roller surface of the embossed rubber roller is in contact with the roller surface of the laser holographic roller, and the roller surface of the laser holographic roller is in contact with the roller surface of the traction rubber roller; the UV glue feeding mechanism is arranged above the embossed rubber roller and the laser holographic roller, and the discharge end of the UV glue feeding mechanism is toward the upper roller surface of the laser holographic roller, the UV curing mechanism is installed on the frame and is below the laser holographic roller, the irradiation direction of the UV curing mechanism is toward the lower roller surface of the laser holographic roller, and the winding roller is arranged above the laser holographic roller and the traction rubber roller.

[0006] The axis of the embossed rubber roller, the axis of the laser holographic roller, and the axis of the traction rubber roller are arranged in the same horizontal direction from front to back, and the winding roller is arranged above the laser holographic roller and the traction rubber roller, so that the winding roller above the laser holographic roller and the traction rubber roller can better tighten the plastic film, so that the covering area of ​​the plastic film wrapped under the roller surface of the laser holographic roller is maximized, which is conducive to the UV curing mechanism to fully irradiate and cure the UV glue, so that the UV glue on the laser holographic roller is completely peeled off from the laser holographic roller and completely transferred to the plastic film.

[0007] Since the UV glue feeding mechanism is arranged above the embossed rubber roller and the laser holographic roller, and the discharging end of the UV glue feeding mechanism faces the upper roller surface of the laser holographic roller, so that the discharging end of the UV glue feeding mechanism faces the upper roller surface of the laser holographic roller close to the embossed rubber roller, the discharging end of the UV glue feeding mechanism first applies the UV glue on the roller surface of the laser holographic roller, and then when the plastic film enters between the embossed rubber roller and the laser holographic roller, under the pressure of the embossed rubber roller, the plastic film is tightly attached to the roller surface of the laser holographic roller, so that the UV glue and the continuous pattern on the roller surface of the laser holographic roller are imprinted on the plastic film; then, the plastic film with the pattern continues to move forward, and when passing under the laser holographic roller, the UV curing mechanism irradiates and cures the UV glue; the cured plastic film is further towed and conveyed by the traction rubber roller; finally, the plastic film with the printed pattern is wound up by the winding roller.

[0008] Usually, the first driving mechanism and the second driving mechanism can adopt motors, which are connected to the rotating shaft of the plate roller and the rotating shaft of the winding roller through the corresponding motors to achieve the rotation of the plate roller and the winding roller.

[0009] In the preferred embodiment, the UV glue feeding mechanism includes a UV glue feeding cylinder and a strip feeding port, the UV glue feeding cylinder is installed on the frame, the strip feeding port is opened on the lower surface of the UV glue feeding cylinder and serves as the discharge end of the UV glue feeding mechanism, and the strip feeding port extends along the axial direction of the laser holographic roller. The width of the strip feeding port is customized according to the length of the laser holographic roller to ensure that the UV glue can be evenly applied to the upper roller surface of the laser holographic roller close to the embossed rubber roller.

[0010] In a preferred embodiment, the UV curing mechanism includes a support plate and a plurality of UV curing lamps, wherein the support plate is mounted on the frame and below the laser holographic roller, and each UV curing lamp is evenly mounted on the upper surface of the support plate along the axial direction of the laser holographic roller. Each UV curing lamp emits UV rays upward, so that the UV rays are irradiated on the film covering the lower part of the laser holographic roller surface, and the UV glue on the plastic film can be quickly cured.

[0011] In the preferred embodiment, the seamless die pressing machine further includes two movable seats and two elastic pressing mechanisms. The two elastic pressing mechanisms are both mounted on the frame. The power output ends of the two elastic pressing mechanisms are arranged opposite to each other and face the laser holographic roller. The two movable seats can be movably mounted on the frame, and the outer ends of the two movable seats are respectively connected to the power output ends of the corresponding elastic pressing mechanisms. The embossed rubber roller and the traction rubber roller are respectively rotatably mounted on the corresponding movable seats. The two elastic pressing mechanisms always apply a pressure to the laser holographic roller on the corresponding movable seats, so that the roller surface of the embossed rubber roller and the roller surface of the traction rubber roller on the two movable seats are always in close contact with the roller surface of the laser holographic roller. The above-mentioned elastic pressing mechanism can adopt a spring assembly or a passive cylinder.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model does not have the plate seam problem of the traditional plate roller. By directly coating UV glue on the laser holographic roller, the thickness and distribution of the UV glue can be more accurately controlled to ensure that each pattern area on the roller surface of the laser holographic roller obtains an appropriate amount of UV glue. Combined with the continuous pattern engraved on the roller surface of the laser holographic roller, the plastic film can be subjected to uniform pressure throughout the entire width of the laser holographic roller during the embossing process, so that the pattern can be completely and continuously printed on the plastic film, avoiding the phenomenon of pattern discontinuity caused by the plate seam. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 1 As shown, the seamless die-stamping machine based on the laser holographic roller in this embodiment includes a frame 1, an unwinding roller 2, an embossing rubber roller 3, a plate roller, a traction rubber roller 5, a winding roller 6, a UV glue feeding mechanism 7, a UV curing mechanism 8 and a first driving mechanism (not shown in the figure) capable of driving the plate roller to rotate, and a second driving mechanism (not shown in the figure) capable of driving the winding roller 6 to rotate, the unwinding roller 2, the embossing rubber roller 3, the plate roller, the traction rubber roller 5, and the winding roller 6 can be rotatably arranged on the frame 1, the first driving mechanism and the second driving mechanism are both installed on the frame 1, the plate roller is a laser holographic roller 4, and a continuous pattern is engraved on the roller surface of the laser holographic roller 4; the axis of the embossing rubber roller 3 , the axis of the laser holographic roller 4, and the axis of the traction rubber roller 5 are arranged in the same horizontal direction from front to back, the roller surface of the embossed rubber roller 3 is in contact with the roller surface of the laser holographic roller 4, and the roller surface of the laser holographic roller 4 is in contact with the roller surface of the traction rubber roller 5; the UV glue feeding mechanism 7 is arranged above the embossed rubber roller 3 and the laser holographic roller 4, and the discharge end of the UV glue feeding mechanism 7 is facing the upper roller surface of the laser holographic roller 4, the UV curing mechanism 8 is installed on the frame 1 and is below the laser holographic roller 4, the irradiation direction of the UV curing mechanism 8 is toward the lower roller surface of the laser holographic roller 4, and the winding roller 6 is arranged above the laser holographic roller 4 and the traction rubber roller 5.

[0017] The axis of the embossed rubber roller 3, the axis of the laser holographic roller 4, and the axis of the traction rubber roller 5 are arranged in the same horizontal direction from front to back, and the winding roller 6 is arranged above the laser holographic roller 4 and the traction rubber roller 5, so that the winding roller 6 above the laser holographic roller 4 and the traction rubber roller 5 can better tighten the plastic film, so that the covering area of ​​the plastic film wrapped under the roller surface of the laser holographic roller 4 is maximized, which is conducive to the UV curing mechanism 8 to fully irradiate and cure the UV glue, so that the UV glue on the laser holographic roller 4 is completely peeled off from the laser holographic roller 4 and completely transferred to the plastic film.

[0018] Since the UV glue feeding mechanism 7 is arranged above between the embossed rubber roller 3 and the laser holographic roller 4, and the discharging end of the UV glue feeding mechanism 7 faces the upper roller surface of the laser holographic roller 4, so that the discharging end of the UV glue feeding mechanism 7 faces the upper roller surface of the laser holographic roller 4 close to the embossed rubber roller 3, the discharging end of the UV glue feeding mechanism 7 first applies the UV glue on the roller surface of the laser holographic roller 4, and then when the plastic film enters between the embossed rubber roller 3 and the laser holographic roller 4, under the pressure of the embossed rubber roller 3, the plastic film is tightly attached to the roller surface of the laser holographic roller 4, so that the UV glue and the continuous pattern on the roller surface of the laser holographic roller 4 are imprinted on the plastic film; then, the plastic film with the pattern continues to move forward, and when passing under the laser holographic roller 4, the UV curing mechanism 8 irradiates and cures the UV glue; the cured plastic film is further towed and conveyed by the traction rubber roller 5; finally, the plastic film with the printed pattern is wound up by the winding roller 6.

[0019] Usually, the first driving mechanism and the second driving mechanism can adopt motors, which are connected to the rotating shaft of the plate roller and the rotating shaft of the winding roller 6 through the corresponding motors, so as to realize the rotation of the plate roller and the winding roller 6.

[0020] The UV glue feeding mechanism 7 includes a UV glue feeding cylinder 71 and a strip feeding port 72. The UV glue feeding cylinder 71 is installed on the frame 1. The strip feeding port 72 is provided on the lower surface of the UV glue feeding cylinder 71 and serves as the discharge end of the UV glue feeding mechanism 7. The strip feeding port 72 extends along the axial direction of the laser holographic roller 4. The width of the strip feeding port 72 is customized according to the length of the laser holographic roller 4 to ensure that the UV glue can be evenly applied to the upper roller surface of the laser holographic roller 4 close to the embossing rubber roller 3.

[0021] The UV curing mechanism 8 includes a support plate 81 and a plurality of UV curing lamps 82. The support plate 81 is mounted on the frame 1 and is located below the laser holographic roller 4. Each UV curing lamp 82 is evenly mounted on the upper surface of the support plate 81 along the axial direction of the laser holographic roller 4. Each UV curing lamp 82 emits UV rays upward, so that the UV rays irradiate the film covering the lower part of the roller surface of the laser holographic roller 4, and can quickly cure the UV glue on the plastic film.

[0022] This seamless die-stamping machine also includes two moving seats 9 and two elastic pressing mechanisms 10. Both elastic pressing mechanisms 10 are mounted on the frame 1. The power output ends of the two elastic pressing mechanisms 10 are arranged opposite to each other and face the laser holographic roller 4. Both moving seats 9 can be movably mounted on the frame 1, and the outer ends of the two moving seats 9 are respectively connected to the power output ends of the corresponding elastic pressing mechanisms 10. The embossed rubber roller 3 and the traction rubber roller 5 are respectively rotatably mounted on the corresponding moving seats 9. The two elastic pressing mechanisms 10 always apply a pressure to the corresponding moving seats 9 toward the laser holographic roller 4, so that the roller surfaces of the embossed rubber roller 3 and the traction rubber roller 5 on the two moving seats 9 are always in close contact with the roller surface of the laser holographic roller 4. The above-mentioned elastic pressing mechanism 10 can adopt a spring assembly or a passive cylinder.

[0023] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The technical personnel of the technical field to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A seamless die-stamping machine based on a laser holographic roller, comprising a frame, an unwinding roller, an embossing rubber roller, a plate roller, a traction rubber roller, a winding roller, and a first driving mechanism capable of driving the plate roller to rotate, and a second driving mechanism capable of driving the winding roller to rotate, the unwinding roller, the embossing rubber roller, the plate roller, the traction rubber roller, and the winding roller can be rotatably arranged on the frame, and the first driving mechanism and the second driving mechanism are both installed on the frame, characterized in that: It also includes a UV glue feeding mechanism and a UV curing mechanism; the plate roller is a laser holographic roller, and a continuous pattern is engraved on the roller surface of the laser holographic roller; the axis of the embossed rubber roller, the axis of the laser holographic roller, and the axis of the traction rubber roller are arranged in the same horizontal direction from front to back, the roller surface of the embossed rubber roller is in contact with the roller surface of the laser holographic roller, and the roller surface of the laser holographic roller is in contact with the roller surface of the traction rubber roller; the UV glue feeding mechanism is arranged above the embossed rubber roller and the laser holographic roller, and the discharge end of the UV glue feeding mechanism faces the upper roller surface of the laser holographic roller, the UV curing mechanism is installed on the frame and is below the laser holographic roller, the irradiation direction of the UV curing mechanism faces the lower roller surface of the laser holographic roller, and the winding roller is arranged above the laser holographic roller and the traction rubber roller.

2. The seamless embossing machine based on laser holographic roller as claimed in claim 1, characterized in that: The UV glue feeding mechanism includes a UV glue feeding cylinder and a strip feeding port. The UV glue feeding cylinder is installed on the frame. The strip feeding port is opened on the lower surface of the UV glue feeding cylinder and serves as the discharge end of the UV glue feeding mechanism. The strip feeding port extends along the axial direction of the laser holographic roller.

3. The seamless embossing machine based on laser holographic roller as claimed in claim 1, characterized in that: The UV curing mechanism comprises a support plate and a plurality of ultraviolet curing lamps. The support plate is mounted on the frame and is located below the laser holographic roller. The ultraviolet curing lamps are evenly mounted on the upper surface of the support plate along the axial direction of the laser holographic roller.

4. The seamless embossing machine based on laser holographic roller as claimed in claim 1, characterized in that: It also includes two movable seats and two elastic pressing mechanisms, both of which are installed on the frame, and the power output ends of the two elastic pressing mechanisms are arranged opposite to each other and both face the laser holographic roller. The two movable seats can be movably installed on the frame, and the outer ends of the two movable seats are respectively connected to the power output ends of the corresponding elastic pressing mechanisms, and the embossed rubber roller and the traction rubber roller can be rotatably installed on the corresponding movable seats.

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