CN112172111A

CN112172111A - Embossing device and embossing process for synchronously embossing film

Info

Publication number: CN112172111A
Application number: CN202010957819.2A
Authority: CN
Inventors: 俞周坤
Original assignee: Haining Guangsheng Crystal Material Co ltd
Current assignee: Haining Guangsheng Crystal Material Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-01-05

Abstract

The invention discloses an embossing device and an embossing process for synchronously embossing a film, wherein a PVC film is extruded and compounded on a material film through a compound press roll and an embossing part rubber roll, the compounded material film is embossed through the embossing roll and the embossing part rubber roll, the distance between pattern color codes on the material film and the change of the passing speed are detected by the photoelectric detection head, real-time observation and automatic feedback are carried out to the processor, the processor controls signals for the power-assisted traction device and the tension adjusting device through calculation, the traction device and the tension adjusting device change the passing speed and tension and release in real time, thereby the position change of control pattern to the embossing roller to make the impressed watermark can with the pattern coincidence on the material membrane, form the product that existing pattern has the concave-convex sense again, make the pattern on the synchronous impressed watermark membrane more exquisite and have the third dimension, can also play skid-proof effect after on with synchronous impressed watermark membrane rendition floor and wallboard.

Description

Embossing device and embossing process for synchronously embossing film

Technical Field

The invention relates to the technical field of decorative films, in particular to an embossing device and an embossing process for synchronously embossing a film.

Background

With the maturity of the heat transfer printing technology, more and more articles can greatly improve the appearance quality of the articles through the heat transfer printing film, such as a wall panel or a floor, in order to improve the quality and the beauty of the wall panel or the floor, the pattern is transferred to the wall panel or the floor through the heat transfer printing film, but the surface of the wall panel or the floor after the pattern is transferred is smooth, the visual sense and the appearance of people are not strong, and the articles are not skid-proof, so that concave-convex lines need to be pressed on the surface of the transfer printing film.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides an embossing device and an embossing process for synchronously embossing a film, wherein embossing is carried out on a PVC film, and the embossing is superposed with the pattern on a material film to form a product with both patterns and concave-convex feeling.

In order to achieve the technical effects, the invention adopts the following scheme:

an embossing device for synchronously embossing a grain film comprises a frame, a first discharging roller for releasing a material film and a second discharging roller for releasing a PVC film are arranged on the frame, a tension adjusting device, a power-assisted traction device, a photoelectric probe, an embossing part rubber roller, an embossing roller, a cooling device and a wind-up roller are sequentially arranged in the conveying direction of the material film, the embossing roller and the embossing part rubber roller are arranged in a tangent manner, the embossing roller is pushed by a pushing cylinder to move along the direction vertical to the surface of the embossing part rubber roller, heating device and compound compression roller are equipped with in proper order on the direction of transfer of PVC membrane, and compound compression roller is tangent with knurling portion rubber roller and is set up, and compound compression roller is located material membrane direction of transfer's rear, and the embossing roller is located material membrane direction of transfer's the place ahead, and the surface mounting of embossing roller and the intaglio that the pattern on the material membrane corresponds still install a plurality of guide rolls that are used for playing the guide effect to material membrane or PVC membrane in the frame.

According to the technical scheme, the tension adjusting device comprises a swing arm, one end of the swing arm is hinged to the frame, the other end of the swing arm is rotated to be provided with a floating tension adjusting roller, the swing arm is driven to rotate through a second cylinder, the tail end of the second cylinder is hinged to the frame, the front end of the second cylinder is hinged to the swing arm, the tension adjusting device is further provided with a first guide-in roller and a first guide-out roller which are fixed to the frame, and a material film sequentially bypasses the first guide-in roller, the floating tension adjusting roller and the first guide-out roller.

The preferred technical scheme, helping hand draw gear includes the initiative carry over pinch rolls, the initiative carry over pinch rolls passes through driving motor drive and rotates, the both sides of initiative carry over pinch rolls are equipped with the leading-in roller of second and the second guide-out roller respectively, the material membrane is around the leading-in roller of second in proper order, initiative carry over pinch rolls and second guide-out roller, the initiative carry over pinch rolls is equipped with the helping hand compression roller with the one side that the material membrane pasted mutually, be equipped with the second swing arm in the frame, the helping hand compression roller is located the one end of second swing arm, it makes the helping hand compression roller be close to or keep away from the initiative carry over pinch rolls to rotate through second cylinder drive second swing arm, the tail end and the frame of second cylinder.

According to the preferable technical scheme, the heating device comprises a first heating roller, a second heating roller, a third heating roller and a fourth heating roller, hot oil pipes used for leading hot oil are arranged in the first heating roller, the second heating roller, the third heating roller and the fourth heating roller, the material film sequentially bypasses the first heating roller, the second heating roller, the third heating roller and the fourth heating roller, the material film is heated through the heating box after being separated from the fourth heating roller, and a plurality of infrared heating pipes are arranged in the heating box.

An embossing process for synchronously embossing a film comprises the following steps:

the method comprises the following steps: marking the material film, and marking a pattern color code on the material film along the pattern of the material film;

step two: releasing the material film, namely releasing the material film from the first material releasing roller, and sequentially passing the material film through a tension adjusting device, a power-assisted traction device, a photoelectric detection head, an embossing part rubber roller, an embossing roller, a cooling device and a winding roller;

step three: releasing the PVC film, releasing the PVC film from the second discharging roller, sequentially passing the PVC film through a heating device and a composite pressing roller, and softening the PVC film through the heating device;

step four: the composite material film and the PVC film are pressed by the composite press roller, and the PVC film is compounded on the material film;

step five: pressure testing embossing, namely adjusting the rotation angle of the embossing roller for multiple times to carry out pressure testing until the embossing of the embossing roller is superposed with the patterns on the material film;

step six: embossing, namely formally embossing after the embossing is overlapped with the pattern, detecting the distance and the passing speed between color codes of the pattern through a photoelectric detection head in the embossing process, feeding back information to a processor, controlling a tension adjusting device and a power-assisted traction device to tension or relax the material film and adjusting the transmission speed of the material film so as to accurately overlap the embossing with the pattern;

step seven: cooling, namely cooling the embossed material film through a cooling device to solidify and form the embossing;

step eight: and (6) rolling, namely rolling the cooled finished product.

Compared with the prior art, beneficial effect does:

the invention has simple structure and convenient use, the PVC film is extruded and compounded on the material film through the compound press roll and the embossing part rubber roll, the compounded material film is embossed through the embossing roll and the embossing part rubber roll, the distance between pattern color codes on the material film and the change of the passing speed are detected by the photoelectric detection head, real-time observation and automatic feedback are carried out to the processor, the processor controls signals for the power-assisted traction device and the tension adjusting device through calculation, the traction device and the tension adjusting device change the passing speed and tension and release in real time, thereby the position change of control pattern to the embossing roller to make the impressed watermark can with the pattern coincidence on the material membrane, form the product that existing pattern has the concave-convex sense again, make the pattern on the synchronous impressed watermark membrane more exquisite and have the third dimension, can also play skid-proof effect after on with synchronous impressed watermark membrane rendition floor and wallboard.

Drawings

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

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

FIG. 4 is an enlarged schematic view of portion C of FIG. 1;

fig. 5 is a flow chart of the embossing process of the present invention.

Reference numerals: 1. a first discharge roller; 2. a second discharge roller; 3. a tension adjusting device; 301. a first swing arm; 302. a floating dancer roll; 303. a first cylinder; 304. a first lead-in roller; 305. a first delivery roll; 4. a power-assisted traction device; 401. a driving traction roller; 402. a power-assisted press roller; 403. a second swing arm; 404. a second cylinder; 405. a second introduction roller; 5. a photoelectric detector head; 6. an embossing section rubber roller; 7. An embossing roll; 8. a cooling device; 9. a wind-up roll; 10. a heating device; 1001. a first heating roller; 1002. a second heating roller; 1003. a third heating roller; 1004. a fourth heating roller; 1005. a heating box; 11. compounding press rolls; 12. material film; 13. PVC film.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

An embossing device for synchronously embossing a grain film comprises a rack, wherein a first discharging roller 1 for releasing a material film 12 and a second discharging roller 2 for releasing a PVC film 13 are arranged on the rack, a tension adjusting device 3, a power-assisted traction device 4, a photoelectric detector 5, an embossing part rubber roller 6, an embossing roller 7, a cooling device 8 and a winding roller 9 are sequentially arranged in the conveying direction of the material film 12, the embossing roller 7 is tangentially arranged with the embossing part rubber roller 6, the embossing roller 7 is pushed by a pushing cylinder to move along the direction vertical to the surface of the embossing part rubber roller 6, a heating device 10 and a composite pressing roller 11 are sequentially arranged in the conveying direction of the PVC film 13, the composite pressing roller 11 is tangentially arranged with the embossing part rubber roller 6, the composite pressing roller 11 is positioned behind the conveying direction of the material film 12, the embossing roller 7 is positioned in front of the conveying direction of the material film 12, an embossing plate corresponding to a pattern on the material film 12 is arranged on the surface of the embossing, the frame is also provided with a plurality of guide rollers for guiding the material film 12 or the PVC film 13.

The preferable technical scheme, tension adjusting device 3 includes the swing arm, the one end of swing arm is articulated with the frame, the other end of swing arm rotates and is equipped with unsteady tension adjusting roller 302, the swing arm passes through the drive of second cylinder 404 and rotates, the tail end and the frame of second cylinder 404 are articulated, the front end and the swing arm of second cylinder 404 are articulated, tension adjusting device 3 still is equipped with the first leading-in roller 304 and the first derivation roller 305 fixed with the frame, material membrane 12 is in proper order around first leading-in roller 304, unsteady tension adjusting roller 302 and first derivation roller 305.

The preferable technical scheme, helping hand draw gear 4 includes initiative carry over pinch rolls 401, initiative carry over pinch rolls 401 rotates through the driving motor drive, the both sides of initiative carry over pinch rolls 401 are equipped with leading-in roller 405 of second and the second roller of deriving respectively, material membrane 12 is in proper order around the leading-in roller 405 of second, initiative carry over pinch rolls 401 and second roller of deriving, the one side that initiative carry over pinch rolls 401 and material membrane 12 pasted mutually is equipped with helping hand compression roller 402, be equipped with second swing arm 403 in the frame, helping hand compression roller 402 is located the one end of second swing arm 403, drive second swing arm 403 through second cylinder 404 and rotate and make helping hand compression roller 402 be close to or keep away from initiative carry over pinch rolls 401, the tail end of second cylinder 404 is articulated with the frame, the front end of second cylinder 404 is articulated with second swing arm.

Preferably, the heating device 10 includes a first heating roller 1001, a second heating roller 1002, a third heating roller 1003, and a fourth heating roller 1004, hot oil pipes for passing hot oil are provided in the first heating roller 1001, the second heating roller 1002, the third heating roller 1003, and the fourth heating roller 1004, the web 12 sequentially passes around the first heating roller 1001, the second heating roller 1002, the third heating roller 1003, and the fourth heating roller 1004, the web 12 is heated by a heating box 1005 after being separated from the fourth heating roller 1004, and a plurality of infrared heating pipes are provided in the heating box 1005.

step eight: and (6) rolling, namely rolling the cooled finished product.

One specific embodiment:

first blowing roller 1 is used for releasing finished product material membrane 12 after the printed pattern such as PET rendition membrane or PVC printing film, material membrane 12 draws out from first blowing roller 1 after the leading-in tension adjusting device 3 of a plurality of guide rolls, because the structure reason of device, the distance between first blowing roller 1 and the tension adjusting device 3 is far away, if directly pull material membrane 12 to tension adjusting device 3 by first blowing roller 1, material membrane 12 corrugates easily, support material membrane 12 through a plurality of guide rolls and can guarantee the planarization of material membrane 12.

The tension adjusting device 3 comprises a first air cylinder 303 and a first swing arm 301 which are transversely arranged, the tail part of the first air cylinder 303 is hinged with the frame, the first swing arm 301 is positioned in front of the first air cylinder 303, the upper end of the first swing arm 301 is hinged with the frame, the lower end of the first swing arm 301 is rotatably provided with a floating tension adjusting roller 302, a telescopic rod at the front end of the first air cylinder 303 is hinged with the first swing arm 301, the hinged position is positioned between the upper end and the lower end of the swing arm, a first leading-in roller 304 and a first leading-out roller 305 are respectively arranged obliquely below and obliquely above the floating tension adjusting roller 302, the first leading-in roller 304 and the first leading-out roller 305 are positioned on the same side of the floating tension adjusting roller 302, the material film 12 bypasses the first leading-in roller 304 anticlockwise from the lower part of the first leading-in roller 304 and then bypasses the floating tension adjusting roller 302 clockwise from the lower part of the floating tension adjusting roller 302, and then winds around the first delivery roller 305 in a counterclockwise direction from below the first delivery roller 305.

The first air cylinder 303 drives the first swing arm 301 to rotate around the hinge of the first swing arm 301 and the frame, so as to adjust the distance between the floating tension adjusting roller 302 and the first leading-in roller 304 and the first leading-out roller 305, thereby adjusting the tension of the material film 12.

The material film 12 is guided out of the tension adjusting device 3 by the first guide-out roller 305 and then guided to the power-assisted traction device 4 by a plurality of guide rollers, and the plurality of guide rollers between the first guide-out roller 305 and the power-assisted traction device 4 have the same action as the plurality of guide rollers between the first discharging roller 1 and the tension adjusting device 3.

The assisting traction device 4 comprises a driving traction roller 401, the driving traction roller 401 is installed on a rack and driven to rotate through a driving motor, a second leading-in roller 405 and a second leading-out roller are respectively arranged on the left lower side and the right lower side of the driving traction roller 401, the material film 12 rounds the driving traction roller 401 clockwise from one side of the driving traction roller 401 after rounding the second leading-in roller 405 anticlockwise, then rounds the second leading-out roller anticlockwise, the second leading-in roller 405 and the second leading-out roller are respectively arranged below two sides of the driving traction roller 401, downward force is applied to the material film 12, the material film 12 is drawn to be tightly attached to the surface of the driving traction roller 401, friction between the material film 12 and the driving traction roller 401 is increased, and the driving traction roller 401 is convenient for driving the driving traction roller 401 to draw the material film 12 to move.

The top of initiative carry over pinch rolls 401 is tangent to be provided with helping hand compression roller 402, the one end that helping hand compression roller 402 is located second swing arm 403 rotates, the other end of second swing arm 403 articulates there is second cylinder 404, the tail end and the frame of second cylinder 404 are articulated, the telescopic link of second cylinder 404 front end is articulated with second swing arm 403, second swing arm 403 still articulates with the frame, this articulated department is located between the both ends of swing arm, cylinder drive second swing arm 403 rotates around the articulated department of second swing arm 403 and frame, make helping hand compression roller 402 compress tightly on initiative carry over pinch rolls 401, material membrane 12 passes from between helping hand compression roller 402 and the initiative carry over pinch rolls 401, thereby compress tightly material membrane 12 on initiative carry over pinch rolls 401.

The material film 12 passes through the photoelectric detection head 5 after passing through the second guide roller and then passes through the plurality of guide rollers, the functions of the plurality of guide rollers are consistent with those of the guide rollers, a plurality of pattern color codes are uniformly arranged on the material film 12 along the length direction of the material film 12, the material film 12 passing through the photoelectric detection head 5 passes through the embossing part rubber roller 6 to be compounded with a layer of PVC film 13, one side of the embossing part rubber roller 6 is provided with an embossing roller 7, the material film 12 is attached to the surface of the embossing part rubber roller 6 and rotates to the position between the embossing part rubber roller 6 and the embossing roller 7 to be embossed, the embossing is carried out on the PVC film 13, the surface of the embossing roller 7 is provided with an embossing intaglio, the grains of the embossing plate are matched with the patterns on the material film 12, one side of the embossing roller 7 is provided with a pushing cylinder for pushing the embossing roller 7.

The distance between the photoelectric detector 5 and the embossing part rubber roller 6 and the embossing roller 7 is constant, the angle of the embossing roller 7 is adjusted through multiple rotations to carry out pressure test until the embossing is overlapped with the pattern on the material film 12, then, formal embossing is started, the material film 12 printed with patterns is irregularly stretched and deformed in the material feeding process, and in order to accurately emboss, therefore, the distance between pattern color marks on the material film 12 and the change of the passing speed are detected by the photoelectric detection head 5, real-time observation and automatic feedback are carried out on the distance and the change of the passing speed, the processor controls signals to the power-assisted traction device 4 and the tension adjusting device 3 through calculation, the traction device and the tension adjusting device 3 change the transmission speed and tension and release the material film in real time, thereby controlling the change in position of the pattern to the embossing roll 7 so that the embossments can be registered with the pattern on the web 12.

The second discharging roller 2 is used for releasing the PVC film 13, and the PVC film 13 is heated through the heating device 10 after being released, so that the PVC film 13 is softened, and the PVC film is favorably compounded with the material film 12 and embossed.

The heating device 10 includes a preheating roller set and a heating box 1005, the preheating roller set includes a first heating roller 1001, a second heating roller 1002, a third heating roller 1003 and a fourth heating roller 1004 which are sequentially arranged, the PVC film 13 is guided to the first heating roller 1001 through a guide roller after being released from the second discharging roller 2, and bypasses the first heating roller 1001 in a counterclockwise direction, then bypasses the second heating roller 1002 in a clockwise direction, then bypasses the third heating roller 1003 in a counterclockwise direction, and finally bypasses the fourth heating roller 1004 in a clockwise direction, and hot oil pipes are respectively arranged in the first heating roller 1001, the second heating roller 1002, the third heating roller 1003 and the fourth heating roller 1004, and hot oil is introduced into the hot oil pipes to heat the surfaces of the first heating roller 1001, the second heating roller 1002, the third heating roller 1003 and the fourth heating roller 1004, so as to heat the PVC film 13.

PVC membrane 13 heats back through fourth warming mill 1004 and passes through heating cabinet 1005 again and gives the one side further heating that need carry out the impressed watermark on the PVC membrane 13 and make its temperature rise, can extend to both sides after PVC membrane 13 heats and softens, consequently, through a lot of gradual heating, gradually extend, PVC membrane 13 breaks away from the running roller after the running roller heating, extend in the air between two running rollers, can not receive the restriction, can level and smooth extend, avoid the temperature to rise too fast, PVC membrane 13 pastes and does not open formation wrinkle in the extension on the running roller.

Since the PVC film 13 is easily stuck to the roller surface when the temperature is too high and the softening degree is too high, the PVC film 13 passes through the fourth heating roller 1004, is heated to a temperature required for embossing by the heating box 1005, is guided to the laminating roller 11, and is laminated together with the base film 12 between the laminating roller 11 and the embossing part rubber roller 6.

A composite press roller 11 is arranged above the embossing part rubber roller 6, a PVC film 13 is pressed on the material film 12, and then embossing is carried out on the PVC film 13 between the embossing part rubber roller 6 and the embossing roller 7.

After embossing, the embossing is cooled through the first cooling roller 801 and the second cooling roller 802, so that the embossing is fixedly formed, cold water pipes are arranged in the first cooling roller 801 and the second cooling roller 802, cold water is introduced into the cold water pipes to cool the first cooling roller 801 and the second cooling roller 802, the material film 12 after embossing anticlockwise bypasses the first cooling roller 801 and then bypasses the second cooling roller 802 in the clockwise direction, and finally the material film is guided to the winding roller 9 through a plurality of guide rollers to be wound.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, refer to orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. An embossing device for synchronously embossing a grain film is characterized by comprising a frame, wherein a first discharging roller for releasing a material film and a second discharging roller for releasing a PVC film are arranged on the frame, a tension adjusting device, a power-assisted traction device, a photoelectric probe, an embossing part rubber roller, an embossing roller, a cooling device and a wind-up roller are sequentially arranged in the conveying direction of the material film, the embossing roller and the embossing part rubber roller are arranged in a tangent manner, the embossing roller is pushed by a pushing cylinder to move along the direction vertical to the surface of the embossing part rubber roller, heating device and compound compression roller are equipped with in proper order on the direction of transfer of PVC membrane, and compound compression roller is tangent with knurling portion rubber roller and is set up, and compound compression roller is located material membrane direction of transfer's rear, and the embossing roller is located material membrane direction of transfer's the place ahead, and the surface mounting of embossing roller and the intaglio that the pattern on the material membrane corresponds still install a plurality of guide rolls that are used for playing the guide effect to material membrane or PVC membrane in the frame.

2. The embossing apparatus for synchronously embossing the embossed film as claimed in claim 1, wherein the tension adjusting means includes a swing arm, one end of the swing arm is hinged to the frame, the other end of the swing arm is rotatably provided with a floating tension adjusting roller, the swing arm is driven to rotate by a second cylinder, the rear end of the second cylinder is hinged to the frame, the front end of the second cylinder is hinged to the swing arm, the tension adjusting means is further provided with a first lead-in roller and a first lead-out roller fixed to the frame, and the film sequentially passes around the first lead-in roller, the floating tension adjusting roller and the first lead-out roller.

3. The embossing device for synchronously embossing the film as claimed in claim 2, wherein the boosting traction device comprises a driving traction roller, the driving traction roller is driven to rotate by a driving motor, a second leading-in roller and a second leading-out roller are respectively arranged on two sides of the driving traction roller, the film sequentially bypasses the second leading-in roller, the driving traction roller and the second leading-out roller, a boosting compression roller is arranged on one side of the driving traction roller, which is attached to the film, a second swing arm is arranged on the frame, the boosting compression roller is arranged at one end of the second swing arm, the second swing arm is driven to rotate by a second cylinder, so that the boosting compression roller is close to or far away from the driving traction roller, the tail end of the second cylinder is hinged with the frame, and the front end of the second cylinder is hinged with the second.

4. The apparatus of claim 3, wherein the heating device comprises a first heating roller, a second heating roller, a third heating roller, and a fourth heating roller, wherein hot oil pipes for passing hot oil are disposed in the first heating roller, the second heating roller, the third heating roller, and the fourth heating roller, the film sequentially passes around the first heating roller, the second heating roller, the third heating roller, and the fourth heating roller, and the film is heated by a heating box after being separated from the fourth heating roller, and a plurality of infrared heating pipes are disposed in the heating box.

5. An embossing process of an embossing apparatus as claimed in claim 1, characterized in that it comprises the following steps:

step eight: and (6) rolling, namely rolling the cooled finished product.