CN211892408U

CN211892408U - Die pressing system capable of being molded in sleeve position

Info

Publication number: CN211892408U
Application number: CN201922440412.8U
Authority: CN
Inventors: 吴小华
Original assignee: Foshan Three Jian Packing Co ltd
Current assignee: Foshan Three Jian Packing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-10
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a mould pressing system capable of being used for mould pressing of a film printed with a cursor, which comprises a mould pressing roller and a sleeve position device; the nesting device comprises an adjusting component which can move to and fro relative to the film, and the adjusting component is arranged at the upstream of the mould pressing roller and is pressed on the film; the nesting device also comprises a sensing assembly capable of detecting a cursor on the film, and the sensing assembly is in communication connection with the adjusting part; when the film enters the molding roller, the sensing assembly detects a cursor on the film, so that the adjusting component moves relative to the film, and the film is stretched to adjust the length of the film before entering the molding roller. The utility model discloses an optics moulding press carries out cover position optics mould pressing to the film of printing good image, has enlarged the scope that the printing product adopted the radium-shine mould pressing of optics greatly, has effectively improved the overprinting precision of the product of printing and the radium-shine combination of optics.

Description

Die pressing system capable of being molded in sleeve position

Technical Field

The utility model belongs to the technical field of holographic anti-fake radium-shine technique and specifically relates to a molding system that can cover position mould pressing is related to.

Background

With the development of printing technology and the improvement of living standard of people, people have higher and higher requirements on printing and packaging. The laser film can see strong high-brightness seven-color light pattern effect under the irradiation of light and has excellent aesthetic effect, so the laser film is widely applied to the printing industry.

In the prior production process, the laser film is subjected to aluminum plating treatment after the film is subjected to optical laser mould pressing, and then the product subjected to aluminum plating treatment is overprinted with an optical laser image by using a printing machine for production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can be to the molding system of the accurate register optics mould pressing of film that has printed the image.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mould pressing system capable of being in a nesting mode is used for pressing a film printed with a cursor, and particularly comprises a mould pressing plate roller and a nesting device; the nesting device comprises an adjusting component which can move to and fro relative to the film, and the adjusting component is arranged at the upstream of the mould pressing roller and is pressed on the film; the nesting device also comprises a sensing assembly capable of detecting a cursor on the film, and the sensing assembly is in communication connection with the adjusting part; when the film enters the molding roller, the sensing assembly detects a cursor on the film, so that the adjusting component moves relative to the film, and the film is stretched to adjust the length of the film before entering the molding roller.

The working principle of the utility model is as follows:

before entering the molding system for optical molding, the film product needs to be printed with a positioning cursor and can be printed with a preset image. After the film product printed with the image and the positioning cursor enters the die pressing system, the cursor sensing assembly senses the positioning cursor on the film product to enable the floating piece to move relative to the film, so that the floating piece is pressed on the film and stretches the film, and the length of the film before the film product enters the die pressing roller is adjusted.

In one example, the sensing assembly includes a first sensor disposed upstream of the embossing plate roller and capable of detecting a cursor on the film, and a second sensor disposed adjacent to the embossing plate roller and capable of detecting a rotational position of the embossing plate roller.

In one example, the sensing assembly further includes an encoder that records the rotational position of the embossing roll, the encoder being coupled to the embossing roll and being in communication with the first sensor, the second sensor, and the regulating member.

The rotational position of the embossing roller is recorded by an encoder, and in combination with the first sensor and the second sensor, a process distance is set between the first sensor and the second sensor, the process distance being formed in accordance with the image on the film and the embossing position. When the length of the film between the first sensor and the second sensor is different from the process distance, the adjusting component moves relative to the film, and the film is stretched to adjust the length of the film before entering the die-pressing roller, so that the length of the film between the first sensor and the second sensor is equal to the process distance.

The utility model has the advantages of it is following:

1. the film printed with the image is subjected to nesting optical mould pressing by an optical mould pressing machine, so that the range of optical laser mould pressing adopted by a printed product is greatly enlarged;

2. the film printed with the image is subjected to nesting optical mould pressing by an optical mould pressing machine, so that the production cost of a product combining printing and optical laser is reduced;

3. through the design of first sensor and second sensor, effectively improved the overprint precision of printing and the radium-shine product of optics.

Drawings

Fig. 1 is a schematic view of a molding system according to an embodiment of the present invention.

Description of reference numerals: 1-an unwinding unit; 2-a winding unit; 3-mould pressing plate roller; 4-main rubber roller; 5-back pressure cooling roller; 6-a floating roll; 7-a first color scale sensor; 8-a guide roller; 9-a drawing roll; 10-gluing and pressing roller; 11-pulling the cooling roller.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, the die pressing system capable of performing die pressing in a nesting manner includes an unwinding unit 1, a die pressing unit, a winding unit 2, and a nesting device, wherein the unwinding unit 1 and the winding unit 2 are of conventional design, and a cursor is printed on a curled film on the unwinding unit 1. A plurality of guide rollers are arranged at the downstream of the unwinding unit 1 along the travelling path of the film. After the film comes out from the unreeling unit 1, the film is guided by a guide roller to enter a traction roller and enters a mould pressing unit through the traction roller. The mould pressing unit comprises a mould pressing plate roller 3, a main rubber roller 4 and a back pressure cooling roller 5, and an optical plate is arranged on the mould pressing plate roller 3.

In this embodiment, the positioning device includes a floating roller 6 as an adjusting component disposed between the embossing unit and the unwinding unit 1, a first color mark sensor 7 as a first sensor disposed between the floating roller 6 and the embossing roller 3, a second color mark sensor (not shown) as a second sensor disposed beside the embossing roller 3, and an encoder (not shown) connected to the embossing roller 3,

the floating roller 6 is connected with a driving device, so that the floating roller 6 can be pressed on the film and can move relative to the film, and the film is stretched to adjust the length of the film before entering the mould pressing roller 3;

the first color mark sensor 7 is positioned above the film, detects a color mark on the film and sends a detected signal to a controller, such as a PLC (programmable logic controller), and the controller is matched to control the action of the floating roller 6;

the second color mark sensor is positioned beside the molding plate roller 3 to detect the position of the original point of the molding plate roller 3. The original point position of the mould pressing plate roller 3 can be set according to the pattern on the optical plate, and the original point position mainly records the rotating position of the mould pressing plate roller 3;

by the arrangement of the second patch sensor, a process distance is established between the second patch sensor and the first patch sensor 7, the process distance is a virtual distance and is formed according to the image on the film and the position of the mold pressing; when the length of the film between the first color mark sensor 7 and the second color mark sensor meets the process distance, the pattern on the optical plate can be accurately stamped on the film; in this embodiment, the process distance is recorded in the pulse time of the encoder;

the encoder is connected with the mould pressing plate roller 3 to record the rotating position of the mould pressing plate roller 3; the encoder is in communication connection with the second color mark sensor, and the controller is in communication connection with the encoder and the second color mark sensor.

The operation of the molding system of this embodiment is as follows:

the film printed or simultaneously aluminized with the cursor is placed in the unwinding unit 1. After being sent out by the unreeling unit 1, the films are sequentially unfolded, enter the floating rollers 6 of the nesting device through the guide rollers 8, are guided by the guide rollers 8 after passing through the floating rollers 6 positioned at the upstream of the mould pressing plate roller 3, and enter the mould pressing unit through the traction rollers 9. The back pressure cooling roller 5 is pressed by a hydraulic cylinder to push the main rubber roller 4 forwards so as to tightly press the film on the molding plate roller 3. When in mould pressing, the mould pressing roller 3 is heated by a heating system, and the temperature can reach 80-250 ℃. The embossing roll 3 transfers the temperature to the optical plate and film thereon. Through pressure and high temperature, an optical image on the optical plate can be accurately imprinted on the film, the imprinted optical film is led out through a traction cooling device, such as a glue pressing roller 10 and a traction cooling roller 11, the glue pressing roller 10 applies pressure through an air cylinder to tightly press the imprinted optical film on the traction cooling roller 11 for cooling and setting, and the imprinted film is sent to a winding unit 2 for winding through a guide roller 8, so that the whole process is completed.

In the above process, when the film passes through the first color sensor 7, the first color sensor 7 detects the cursor on the detection film and sends a signal to the controller. And then, when the film passes through the mould pressing plate roller 3, the second color mark sensor near the mould pressing plate roller 3 and the encoder on the mould pressing plate roller 3 immediately give an origin signal and an encoder signal, the controller simultaneously receives the origin signal, the encoder signal and the signal given by the first color mark sensor 7 and then analyzes the signals, and the pulse time of the difference between the length of the film between the first color mark sensor 7 and the second color mark sensor and the process distance in the actual production can be obtained by combining the actual stamping effect of the stamped film. According to the pulse time difference between the process distance and the length of the film, the controller drives the floating roller 6 to float up and down to change the length of the film before entering the molding plate roller 3, so that the length of the film is equal to the process distance. Thus, when the film passes through the mould pressing plate roller 3, patterns on the optical plate can be accurately subjected to register mould pressing.

The preferred embodiment of the present invention is only listed in the present specification, and all the technical changes equivalent to those made under the working principle and thought of the present invention are considered as the protection scope of the present invention.

Claims

1. A molding system capable of being molded in a nesting manner is used for molding a film printed with a cursor, and is characterized in that: comprises a mould pressing plate roller and a nesting device; the positioning device comprises an adjusting component which can move to and fro relative to the film, and the adjusting component is arranged at the upstream of the mould pressing roller and is pressed on the film; the nesting device also comprises a sensing assembly capable of detecting a cursor on the film, and the sensing assembly is in communication connection with the adjusting part; when the film enters the die pressing roller, the sensing assembly detects a cursor on the film, so that the adjusting component moves relative to the film, and the film is stretched to adjust the length of the film before entering the die pressing roller.

2. The compression molding system of claim 1, wherein: the sensing assembly comprises a first sensor and a second sensor, the first sensor is arranged at the upstream of the molding plate roller and can detect a cursor on the film, and the second sensor is arranged beside the molding plate roller and can detect the rotating position of the molding plate roller.

3. The compression molding system of claim 1, wherein: the regulating member is disposed upstream of the embossing roll.

4. The compression molding system of claim 3, wherein: the first sensor is disposed between the regulating member and the embossing roll.

5. The compression molding system of claim 1, wherein: the sensing assembly further comprises an encoder for recording the rotating position of the molding plate roller, and the encoder is connected with the molding plate roller and is in communication connection with the first sensor, the second sensor and the adjusting component.