CN215620800U

CN215620800U - Polyethylene film surface gold stamping device

Info

Publication number: CN215620800U
Application number: CN202022850142.0U
Authority: CN
Inventors: 雷煌
Original assignee: Nanchang Chengxin Packaging Co ltd
Current assignee: Nanchang Chengxin Packaging Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2022-01-25
Anticipated expiration: 2030-12-01

Abstract

A polyethylene film surface gold stamping device is characterized in that supports on two sides of a rack are respectively provided with a winding drum, the rack is also provided with two compression rollers, and an electrochemical aluminum foil is wound on the winding drum on one side and is drawn by the two compression rollers to extend onto the other winding drum; two rollers are arranged on two sides of the frame and are positioned below the winding drum, and a conveying belt is sleeved between the two rollers and is driven by a motor; the other motor is connected with a winding drum at one side to drive the electrochemical aluminum foil to convey; the middle part of the frame is provided with a cylinder, the output shaft of the cylinder is connected with the hot stamping module, the male mold relief plate is placed below the hot stamping module through the frame, and the upper end surface of the male mold relief plate is provided with boss engraving. The required gold stamping temperature of the polyethylene film material is controlled to be 150-160 ℃, the partitioned space of the inner cavity of the hot stamping module is used for partitioning the non-isothermal area made of the resistance wire from the female gravure, and then the heat is uniformly transmitted to the female gravure by the heat-conducting silicone grease, so that the lower end face of the female gravure provides hot stamping operation with uniform temperature for the electrochemical aluminum foil and the polyethylene film, and the product quality and the production efficiency of the polyethylene film are improved.

Description

Polyethylene film surface gold stamping device

Technical Field

The utility model belongs to the technical field of gold stamping treatment, and particularly relates to a polyethylene film surface gold stamping device.

Background

The gold stamping process is to transfer an aluminum layer in the electrochemical aluminum to the surface of a printing stock by utilizing a hot-pressing transfer principle to form a special metal effect, and is widely applied to the printing industry. The hot stamping process is mainly characterized in that the effect of the hot stamping process is determined by the properties of pressure, temperature, cleanliness and the like, the requirement on temperature control is strict due to the limitation of adhesive force and flexibility of a polyethylene film in the hot stamping process of the polyethylene film, the hot stamping color is whitened if the temperature is too high, and the hot stamping pattern is difficult to adhere due to the fact that the temperature is too low. In addition, due to the temperature change or the excessive local temperature difference of the hot stamping plate, the phenomenon of incomplete hot stamping patterns can be caused, and the product quality and the production benefit are reduced, so that a new feasible scheme needs to be improved aiming at the defects of the hot stamping process of the polyethylene film in the prior art.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a gold stamping device for the surface of a polyethylene film, which is used for realizing a high-quality gold stamping treatment effect on the polyethylene film.

The utility model is implemented by the following technical scheme: a gold stamping device for the surface of a polyethylene film comprises a frame, two winding drums, two compression rollers, an electrochemical aluminum foil, two winding drums, two motors, a cylinder, a hot stamping module and a male die relief plate. The machine frame is fixed on a platform or the ground, the supports on the two sides of the machine frame are respectively provided with a winding drum in a shaft hole matching mode, the lower area between the two winding drums is also provided with two compression rollers in a shaft hole matching mode through the machine frame, and the electrochemical aluminum foil is wound on the winding drum on one side, is drawn by the two compression rollers in the middle and extends to and is fixed on the winding drum on the other side; the two sides of the rack are also provided with two rollers in a shaft hole matching way and positioned below the two rollers, a conveying belt is sleeved between the two rollers and is driven by the roller connected to one side through the motor on the rack to enable the conveying belt to run; the other motor is also fixed on the frame and is connected with the winding drum at one side by an output shaft of the other motor, so that the electrochemical aluminum foil is driven to be conveyed; the middle part of the rack is provided with the air cylinder, an output shaft of the air cylinder faces downwards and is connected with the hot stamping module, the hot stamping module can provide a heating surface with uniform temperature according to heat conduction materials in the hot stamping module, the male die relief plate is placed and fixed through the rack and is positioned below the hot stamping module, and the upper end face of the male die relief plate is provided with boss engraving.

Further, a plurality of polyethylene films are arranged on the conveying belt at equal intervals.

Furthermore, the conveyor belt is provided with a slot hole which avoids the engraving of the boss on the upper end surface of the male mould relief printing plate.

Furthermore, the male mould relief printing plate is made of resin.

Furthermore, the hot stamping module is of a hollow block structure, the lower end face of the hot stamping module is a female gravure with groove marks, the inner cavity of the hot stamping module is divided into two parts by a transversely fixed partition plate, the upper inner cavity is internally provided with a resistance wire, and the lower inner cavity is filled with a heat conduction layer.

Furthermore, the working temperature of the resistance wire is 150-160 ℃.

Furthermore, the heat conducting layer is made of heat conducting silicone grease.

Furthermore, the female die intaglio plate is made of copper.

The utility model has the beneficial effects that:

according to the utility model, the gold stamping temperature required by the polyethylene film material is controlled to be 150-160 ℃, the partitioned space of the inner cavity of the hot stamping module is utilized to separate the non-isothermal area manufactured by the resistance wire from the female die gravure, and the heat of the non-isothermal area is uniformly transmitted to the female die gravure by utilizing the heat-conducting silicone grease, so that the lower end surface of the non-isothermal area provides hot stamping operation with uniform temperature for the electrochemical aluminum foil and the polyethylene film, the defects of whitening, easy falling off or incomplete hot stamping patterns caused by local temperature difference or temperature change in the prior art are avoided, the product quality and the production efficiency of polyethylene film production enterprises are improved, and meanwhile, the hot stamping device is simple in structure, easy to realize and has better economic and practical values.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the gold stamping operation of the utility model.

In the figure: the production process comprises the following steps of 1-a machine frame, 1 a-a polyethylene film, 2-a winding drum, 3-a press roller, 4-an electrochemical aluminum foil, 5-a roller, 5 a-a conveyor belt, 6-a motor, 7-an air cylinder, 8-a hot stamping module, 8 a-female die intaglio, 8 b-a partition plate, 8 c-a resistance wire, 8 d-a heat conduction layer and 9-a male die relief printing plate.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples.

As shown in fig. 1, a gold stamping device for a surface of a polyethylene film 1a comprises a frame 1, two winding drums 2, two press rollers 3, an electrochemical aluminum foil 4, two rollers 5, two motors 6, a cylinder 7, a hot stamping module 8 and a male die relief plate 9. The machine frame 1 is fixed on a platform or the ground, the supports on the two sides of the machine frame are respectively provided with one winding drum 2 in a shaft hole matching mode, the lower area between the two winding drums 2 is also provided with two compression rollers 3 in a shaft hole matching mode through the machine frame 1, and the electrochemical aluminum foil 4 is wound on the winding drum 2 on one side, is drawn by the two compression rollers 3 in the middle and extends and is fixed on the winding drum 2 on the other side; two rollers 5 are also arranged on two sides of the frame 1 in a shaft hole matching mode and are positioned below the two rollers 2, a conveying belt 5a is sleeved between the two rollers 5, and the conveying belt 5a is driven by the roller 5 connected to one side through the motor 6 on the frame 1 to operate; a plurality of polyethylene films 1a waiting for gold stamping treatment are equidistantly arranged on the conveyor belt 5 a; another motor 6 is also fixed on the frame 1 and connected with the winding drum 2 at one side by an output shaft thereof so as to drive the transmission of the electrochemical aluminum foil 4; the middle part of the frame 1 is provided with the cylinder 7, an output shaft of the cylinder is downward and connected with the hot stamping module 8, the hot stamping module 8 is in a hollow block structure, the lower end face of the hot stamping module is a copper female die intaglio 8a with groove marks, the inner cavity of the hot stamping module 8 is divided into two parts by a transversely fixed partition plate 8b, a resistance wire 8c with the working temperature of 150-160 ℃ is arranged in the inner cavity of the hot stamping module, and a heat conduction layer 8d made of heat conduction silicone grease is filled in the inner cavity of the hot stamping module; the male die relief plate 9 is made of resin, is placed and fixed through the frame 1 and is positioned below the hot stamping module 8, and the upper end face of the male die relief plate is provided with boss engraving.

The utility model implements specific functions by the following steps:

the method comprises the following steps: the resistance wire 8c is turned on to generate heat, and the heat is uniformly conducted to the female die gravure 8a below through the partition plate 8b and the heat conduction layer 8d made of heat conduction silicone grease, so that the temperature is kept at 155 ℃.

Step two: starting a motor 6 connected with a roller 5 on the left side (the direction is in accordance with figure 1) to drive a conveyor belt 5a to run, conveying a plurality of polyethylene films 1a equidistantly placed on the conveyor belt 5a to a station below an air cylinder 7 in batches, when a first batch of polyethylene films 1a reach the position under a hot stamping module 8, pausing the motor 6 and starting the air cylinder 7 to extend an output shaft of the air cylinder 7 and push the hot stamping module 8 to press downwards, because a slotted hole for avoiding the engraving of a boss on the upper end face of a convex plate 9 is arranged on the conveyor belt 5a, a female die intaglio 8a, the polyethylene films 1a and the convex plate 9 are pressed from top to bottom in the force application process of the air cylinder 7 (as shown in figure 2), because the temperature of the female die intaglio 8a is constantly kept in a range suitable for polyethylene hot stamping in the first step, an aluminum layer in an electrochemical aluminum foil 4 is transferred to the polyethylene films 1a to form a hot stamping effect, and then starting the air cylinder 7 to retract to reset the output shaft hot stamping module 8, and finishing the gold stamping operation.

Step three: after the gold stamping operation of the second step, the middle section of the electrochemical aluminum foil 4 loses the aluminum layer and only the base layer is left, the motor 6 connected with the left side (the direction is according to the figure 1) winding drum 2 is started to enable the output shaft of the motor to rotate, the middle section of the electrochemical aluminum foil 4 without the aluminum layer is pulled and wound to the surface of the middle section of the electrochemical aluminum foil through the rotation of the left side winding drum 2, the electrochemical aluminum foil 4 curled by the right side winding drum 2 is driven to be taken out through the traction of the middle two compression rollers 3, the electrochemical aluminum foil 4 with the aluminum layer on the right side is conveyed to the middle gold stamping operation station, the motor 6 connected with the left side winding drum 5 is started again to enable the conveyor belt 5a to run, the next batch of polyethylene films 1a are conveyed to the middle, the gold stamping operation is implemented according to the same principle of the second step, and the batch production of gold stamping products of the polyethylene films 1a is completed.

The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limited thereto, and all the modifications and equivalents thereof that are within the scope of the claims of the present invention will be suggested to those skilled in the art.

Claims

1. The utility model provides a gilt device in polyethylene film surface, includes frame, two reels, two compression rollers, electrochemical aluminum foil, two cylinders, two motors, cylinder, thermoprint module, formpiston relief printing, its characterized in that: the machine frame is fixed on a platform or the ground, the supports at two sides of the machine frame are respectively provided with a winding drum in a shaft hole matching mode, the lower area between the two winding drums is also provided with two compression rollers in a shaft hole matching mode through the machine frame, the electrochemical aluminum foil is wound on the winding drum at one side and extends and is fixed on the winding drum at the other side through the traction of the two compression rollers in the middle, the two sides of the machine frame are also provided with two rollers in a shaft hole matching mode and are positioned below the two winding drums, the conveying belt is sleeved between the two rollers and is driven by the roller connected to one side through the motor on the machine frame, so that the conveying belt runs; the other motor is also fixed on the frame and connected with the winding drum on one side through an output shaft of the motor so as to drive the electrochemical aluminum foil to be conveyed, the cylinder is arranged in the middle of the frame, the output shaft of the cylinder faces downwards and is connected with the hot stamping module, the hot stamping module can provide a heating surface with uniform temperature according to the heat conduction material in the hot stamping module, the male die relief plate is placed and fixed through the frame and is positioned below the hot stamping module, and the upper end face of the male die relief plate is provided with boss engraving marks.

2. The polyethylene film surface gold stamping device of claim 1, wherein: a plurality of polyethylene films are arranged on the conveyor belt at equal intervals.

3. The polyethylene film surface gold stamping device of claim 1, wherein: and the conveying belt is provided with a slot which avoids the engraving of a boss on the upper end surface of the male mould relief printing plate.

4. The polyethylene film surface gold stamping device of claim 1, wherein: the male mold relief plate is made of resin.

5. The polyethylene film surface gold stamping device of claim 1, wherein: the hot stamping module is of a hollow block structure, the lower end face of the hot stamping module is a female die intaglio plate with groove marks, the inner cavity of the hot stamping module is divided into two parts through a transversely fixed partition plate, a resistance wire is arranged in the upper inner cavity of the hot stamping module, and a heat conduction layer is filled in the lower inner cavity of the hot stamping module.

6. The polyethylene film surface gold stamping device of claim 5, wherein: the heat conducting layer is made of heat conducting silicone grease.

7. The polyethylene film surface gold stamping device of claim 5, wherein: the female die intaglio plate is made of copper.