Embossing device for carrying out discontinuous pattern embossing on laser coated paper

Abstract

The utility model discloses a belling device for carrying out discontinuous pattern embossing on laser coated paper. The belling device comprises a workbench, a feeding mechanism, a belling mechanism and a control panel, the control panel is electrically connected with electric control components of all the mechanisms in the device through wires, the feeding mechanism comprises an unwinding roller, a paper pressing roller and a feeding roller set, and the belling mechanism is located in the middle of the workbench and comprises a supporting frame, a belling air cylinder, an upper die assembly and a lower die assembly. The working table, the feeding mechanism, the belling mechanism and the control panel are combined for use, discontinuous patterns can be subjected to intermittent belling, overall deformation of materials is avoided, the embossing effect is effectively improved, and the production efficiency is improved. And quick-change magnetic fixing structures are adopted between the upper convex block and the mounting seat of the belling mechanism and between the lower concave plate and the supporting block of the workbench, so that when the embossed pattern is replaced, the upper convex block and the lower concave plate can be quickly replaced only by releasing electromagnetic adsorption, time and labor are saved, and the working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing technical field, concretely relates to a kind of embossing device for the non-continuous pattern embossing of laser copperplate paper. BACKGROUND

[0002] With the improvement of people's environmental protection concept, the existing packaging box mostly uses laser copperplate paper to replace traditional composite paper, and laser copperplate paper is widely used in high-grade packaging and printed matter.

[0003] Embossing process is a special processing technology applied to the surface of printed matter, which uses special rigid mold to make the substrate of printed matter deform plastically corresponding to the mold surface under constant pressure, so as to realize the presentation of various texts and patterns, and display different patterns according to the different settings of the mold, with obvious relief feeling, which enhances the three-dimensional effect and artistic appeal of printed matter.

[0004] The current embossing process mostly adopts continuous rolling mode, which is difficult to realize local fine pattern embossing, especially when embossing non-continuous pattern, the rolling mode is easy to cause material extension deformation, which affects the laser effect, in addition, there are problems such as the need to replace the pattern as a whole, high cost and the like. SUMMARY

[0005] In order to solve the above problems, the utility model provides an embossing device for non-continuous pattern embossing of laser copperplate paper, which has good embossing effect and is convenient for replacing pattern.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an embossing device for non-continuous pattern embossing of laser copperplate paper, comprising a workbench, a feeding mechanism, an embossing mechanism and a control panel; the control panel is electrically connected with the electric control components of each mechanism in the device through wires.

[0007] The feeding mechanism comprises a unwinding roller, a paper pressing roller and a feeding roller set, the unwinding roller is installed on one side of the feeding end of the workbench, the feeding roller set is installed on one side of the discharging end of the workbench, and is composed of a driven roller and a driving roller opposite to each other, a feeding motor is installed on the driving roller, and the transmission shaft is transmissionally connected between the driving roller and the driving roller, and the paper pressing roller is installed on the workbench between the unwinding roller and the feeding roller set.

[0008] The embossing mechanism is located in the middle of the workbench, and the embossing mechanism comprises a supporting frame, an embossing cylinder, an upper mold assembly and a lower mold assembly, the supporting frame is installed on the workbench, the embossing cylinder is installed on the supporting frame, the telescopic end is vertically downward, and the workbench opposite to the telescopic end is provided with a mounting groove, a supporting plate is arranged in the groove, an electromagnet is arranged in the supporting plate, and a front and rear limiting groove is formed in the surface of the mounting groove.

[0009] The upper die assembly comprises a mounting seat and an upper convex block, the top surface of the mounting seat is connected with the telescopic end of the embossing cylinder, the bottom surface is provided with a T-shaped connecting groove, one end of the connecting groove is a closed structure, and the other end is an insertion port, an electromagnet is arranged in the shell of the mounting seat, and the bottom surface of the upper convex block is provided with an embossed pattern, and the top surface is provided with a T-shaped connecting block matched with the connecting groove of the mounting seat.

[0010] The lower die assembly comprises a lower concave plate and a limiting piece, the lower concave plate is arranged in the mounting groove on the top surface of the workbench and is connected with the supporting plate, a groove matched with the embossed pattern on the bottom surface of the upper convex plate is formed in the middle of the top surface of the lower concave plate, the limiting piece is composed of a column and an electric telescopic rod, a rotatable rotating shell is arranged on the column, the bottom of the column is connected with the telescopic end of the electric telescopic rod, the number of the limiting pieces is two groups, which are arranged in the limiting grooves on the workbench respectively, the electric telescopic rods are arranged on the inner side wall of the workbench opposite to the limiting grooves, and the columns slide and limit in the limiting grooves.

[0011] As an optimization scheme of the present case, in order to prevent the paper from deviating during embossing and improve the accuracy of the embossed position, the plate surfaces on the two sides of the groove of the lower concave plate are provided with suction ports, a suction pump is arranged below the lower concave plate, a gas pipe with a solenoid valve is arranged on the air inlet of the suction pump, a suction cover is arranged on the gas inlet of the gas pipe, the suction cover is arranged on the bottom surface of the lower concave plate and is arranged opposite to the suction port, and the solenoid valve and the suction pump are connected with the control panel through wires.

[0012] As an optimization scheme of the present case, in order to reduce the cracking of the film layer, the damage of the laser effect and the film layer breakage caused by the high hardness of the laser film on the surface of the laser copper plate during direct embossing of the laser copper plate, and improve the yield of finished products, a preheating mechanism is arranged on the workbench between the unwinding roller and the supporting frame.

[0013] Further, the preheating mechanism comprises a preheating box, heating rods and a temperature sensor, the preheating box is a rectangular box structure with an open bottom, and the left and right side surfaces of the box body are provided with an inlet and an outlet, the number of the heating rods is 2-4, which are fixedly arranged on the inner side walls of the preheating box, and the temperature sensor is arranged in the preheating box.

[0014] Beneficial effects: ①. The workbench, the feeding mechanism, the embossing mechanism and the control panel are combined for use, intermittent embossing can be carried out on the non-continuous pattern, the overall deformation of the material is avoided, the embossing effect is effectively improved, the upper convex block of the embossing mechanism and the mounting seat, and the lower concave plate and the supporting block of the workbench adopt a quick-change magnetic fixing structure, when the embossing pattern is replaced, the upper convex block and the lower concave plate can be quickly replaced by only releasing the electromagnetic adsorption, time and labor are saved, and the working efficiency is effectively improved.

[0015] The utility model discloses a lower concave plate is equipped with suction mouth, and after being equipped with corresponding suction equipment, the laser copperplate paper is fixed by suction before embossing, can effectively prevent the material sliding in the embossing process, and ensures that the paper whole even pressure, prevents partial deformation, reduces the defective product.

[0016] The utility model discloses a preheating mechanism can be set up, can preheat the surface of laser copperplate paper before embossing, makes its membrane surface soften, and after softening, material ductility enhances, can better adapt to the die shape, avoids the fracture of fine line or pattern. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the utility model.

[0018] Figure 2 It is the structure schematic diagram of the utility model in work table.

[0019] Figure 3 It is the structure schematic diagram of the utility model in upper die assembly.

[0020] Figure 4 It is the structure schematic diagram of the utility model in embodiment 2.

[0021] Figure 5 It is the structure schematic diagram of the utility model in lower concave plate. Figure 4

[0022] In the drawing: 1, work table;2, control panel;3, pay-off roll;4, press roll;5, feeding roller group;6, support frame;7, embossing cylinder;8, mounting groove;9, support plate;10, limit groove;11, mounting seat;12, upper convex block;13, lower concave plate;14, limit piece;15, suction mouth;16, preheating mechanism. DETAILED DESCRIPTION

[0023] The utility model is further explained below in connection with the drawings and embodiment.

[0024] Wherein same part uses same reference mark to show. It is explained that, the words "before", "after", "left", "right", "up" and "down" used in the following description refer to the direction in the drawing, and the words "in" and "out" refer to the direction towards or away from the geometric center of a particular component respectively, and the drawings all adopt very simplified form, use non-precise ratio, only to facilitate, clear and assist the purpose of explaining the embodiment of the utility model. Example 1

[0025] As Figures 1-3 ​The embodiment discloses a embossing device for non-continuous pattern embossing of laser copper plate, which comprises a workbench 1, a feeding mechanism, an embossing mechanism and a control panel 2; the control panel 2 is electrically connected with the electric control components of the mechanisms in the device through wires.

[0026] Referring to Figure 1 and Figure 2 , the feeding mechanism comprises a unwinding roller 3, a paper pressing roller 4 and a feeding roller group 5, the unwinding roller 3 is installed at the feeding end of the workbench 1, the feeding roller group 5 is installed at the discharging end of the workbench 1, which is composed of upper and lower opposite driven rollers and driving rollers, the driving roller is provided with a feeding motor, and the transmission shaft of the feeding motor is in transmission connection with the driving roller, and the paper pressing roller 4 is installed on the workbench 1 between the unwinding roller 3 and the feeding roller group.

[0027] From Figure 1 it can be seen that the embossing mechanism is located in the middle of the workbench 1, and the embossing mechanism comprises a support frame 6, an embossing cylinder 7, an upper mold assembly and a lower mold assembly, the support frame 6 is installed on the workbench 1, the embossing cylinder 7 is installed on the support frame 6, the telescopic end of the embossing cylinder 7 is vertically arranged downward, and a mounting groove 8 is formed in the surface of the workbench 1 opposite to the telescopic end of the embossing cylinder 7, a support plate 9 is arranged in the mounting groove 8, and an electromagnet is arranged in the support plate 9, referring to Figure 2 , a front and rear opposite limiting groove 10 is formed in the surface of the workbench 1 in the feeding direction of the mounting groove 8.

[0028] Referring to Figure 1 and Figure 3 , the upper mold assembly comprises a mounting seat 11 and an upper embossing block 12, the top surface of the mounting seat 11 is connected with the telescopic end of the embossing cylinder 7, the bottom surface is provided with a “T” type connecting groove, one end of the connecting groove is a closed structure, and the other end is an insertion port, an electromagnet is arranged in the housing of the mounting seat 11, and the bottom surface of the upper embossing block 12 is provided with an embossing pattern, and the top surface is provided with a “T” type connecting block matched with the connecting groove of the mounting seat 11.

[0029] Referring to Figure 1 , the lower mold assembly comprises a lower concave plate 13 and a limiting piece 14, the lower concave plate 13 is arranged in the mounting groove 8 of the top surface of the workbench 1 and connected with the support plate 9, a groove matched with the embossing pattern on the bottom surface of the upper concave plate is formed in the middle of the top surface of the lower concave plate 13, the limiting piece 14 is composed of a column body and an electric telescopic rod, a rotatable rotating shell is arranged on the column body, the bottom of the column body is connected with the telescopic end of the electric telescopic rod, the number of the limiting piece 14 is two groups, which are arranged in the limiting grooves 10 on the surface of the workbench 1, the electric telescopic rod of the limiting piece 14 is arranged on the inner wall of the workbench 1 opposite to the limiting groove 10, and the column body slides and limits in the limiting groove 10. Embodiment 2

[0030] As Figures 2-5As shown, the specific structure and embodiment are shown in Example 1, except that referring to Figure 5 The plate surface on both sides of the recessed plate 13 is provided with suction ports 15, and a suction pump is arranged below the recessed plate 13. The suction port of the suction pump is provided with a gas pipe with a solenoid valve, and the gas port of the gas pipe is provided with a suction cover. The suction cover is arranged on the bottom surface of the recessed plate 13 and is arranged opposite to the suction port 15. The solenoid valve and the suction pump are connected to the control panel 2 through wires.

[0031] Referring to Figure 4 The workbench 1 between the unwinding roller 3 and the support frame 6 is provided with a preheating mechanism 16.

[0032] The preheating mechanism 16 includes a preheating box, heating rods and temperature sensors. The preheating box is an open-bottom rectangular box structure, and the left and right sides of the box body are provided with an inlet and an outlet. The number of heating rods is 2-4, which are respectively fixedly installed on the inner side wall of the preheating box. The temperature sensor is installed inside the preheating box. The heating rods and the temperature sensor are also connected to the control panel 2 through wires.

[0033] In operation, the laser copper plate paper is unwound from the unwinding roller 3, and the laser copper plate paper is first introduced into the preheating box to preheat and soften the film surface. The temperature sensor monitors the temperature in the box in real time and transmits the information to the control panel 2 to ensure that the temperature in the box does not exceed the preset range. The preheated laser copper plate paper continues to enter the embossing mechanism, the control panel 2 opens the solenoid valve on the suction pump cylinder, so that the suction cover is in a negative pressure state, and the paper is adsorbed and positioned through the suction port 15 of the recessed plate 13. The upper die assembly and the lower die assembly cooperate to perform intermittent embossing on the paper surface. After the embossing process is completed, it is conveyed to the next process equipment by the feeding roller group 5.

[0034] When different embossing patterns need to be replaced, the control panel 2 closes each electromagnet to release the electromagnetic adsorption between the upper convex block 12 and the mounting seat 11, the lower recessed plate 13 and the support block of the workbench 1. The upper block and the lower recessed plate can be removed and replaced. After the replacement is completed, the electromagnet is started to magnetically attract the upper convex block 12 and the mounting seat 11, and the lower recessed plate 13 and the support block of the workbench 1. Finally, adjust the limit piece 14 to make the width between the two limit pieces 14 adapt to the width of the paper for embossing.

[0035] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A embossing device for non-continuous pattern embossing of a laser copper plate, comprising a workbench (1), a feeding mechanism, an embossing mechanism and a control panel (2), the control panel (2) is electrically connected with the electric control components of each mechanism in the device through wires; characterized in that: The feeding mechanism comprises a pay-off roller (3), a paper pressing roller (4) and a feeding roller set (5), the pay-off roller (3) is installed at the feeding end of the workbench (1), the feeding roller set (5) is installed at the discharging end of the workbench (1) and comprises a driven roller and a driving roller arranged oppositely, the driving roller is provided with a feeding motor, and the transmission shaft of the feeding motor is in transmission connection with the driving roller, and the paper pressing roller (4) is installed on the workbench (1) between the pay-off roller (3) and the feeding roller set (5); The embossing mechanism is located in the middle of the workbench (1), and the embossing mechanism comprises a support frame (6), an embossing cylinder (7), an upper die assembly and a lower die assembly, the support frame (6) is installed on the workbench (1), the embossing cylinder (7) is installed on the support frame (6), the telescopic end of the embossing cylinder (7) is vertically arranged downward, a mounting groove (8) is formed in the surface of the workbench (1) opposite to the telescopic end of the embossing cylinder (7), a support plate (9) is arranged in the mounting groove (8), an electromagnet is arranged in the support plate (9), and a front and rear limiting groove (10) is formed in the surface of the workbench (1) in the feeding direction of the mounting groove (8). The upper die assembly comprises a mounting seat (11) and an upper embossing block (12), the top surface of the mounting seat (11) is connected with the telescopic end of the embossing cylinder (7), the bottom surface is provided with a "T"-shaped connecting groove, one end of the connecting groove is in a closed structure, the other end is an insertion opening, an electromagnet is arranged in the housing of the mounting seat (11), and the bottom surface of the upper embossing block (12) is provided with an embossing pattern, and the top surface is provided with a "T"-shaped connecting block matched with the connecting groove of the mounting seat (11). The lower die assembly comprises a lower concave plate (13) and a limiting piece (14), the lower concave plate (13) is arranged in the mounting groove (8) of the top surface of the workbench (1) and connected with the support plate (9), a groove matched with the embossing pattern on the bottom surface of the upper embossing block is formed in the middle of the top surface of the lower concave plate (13), the limiting piece (14) comprises a column and an electric telescopic rod, a rotatable rotating shell is arranged on the column, the bottom of the column is connected with the telescopic end of the electric telescopic rod, the number of the limiting pieces (14) is two, and the limiting pieces (14) are arranged in the limiting grooves (10) on the surface of the workbench (1), the electric telescopic rod is arranged on the inner wall of the workbench (1) opposite to the limiting grooves (10), and the column slides and is limited in the limiting grooves (10).

2. The embosser for non-continuous pattern embossing of a laser copper plate paper according to claim 1, wherein: Suction ports (15) are formed in the plate surfaces on the two sides of the groove of the lower concave plate (13), a suction pump is arranged below the lower concave plate (13), a gas pipe with an electromagnetic valve is arranged on the suction port of the suction pump, a suction cover is arranged on the gas port of the gas pipe, the suction cover is arranged on the bottom surface of the lower concave plate (13) and opposite to the suction ports (15), and the electromagnetic valve and the suction pump are connected with the control panel (2) through wires.

3. The embosser for non-continuous pattern embossing of a laser copper plate paper according to claim 1 or 2, wherein: A preheating mechanism (16) is arranged on the workbench (1) between the pay-off roller (3) and the support frame (6).

4. The embosser of claim 3, wherein: The preheating mechanism (16) comprises a preheating box, heating rods and a temperature sensor, the preheating box is a rectangular box structure with an open bottom, and a feeding port and a discharging port are formed on the left and right side walls of the box body, the number of the heating rods is 2-4, and each heating rod is fixedly installed on the inner side wall of the preheating box, and the temperature sensor is installed in the preheating box, and the heating rods and the temperature sensor are further connected with the control panel (2) through wires.

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