CN103586171B - A kind of positive and negative coating process of batch (-type) and coating machine thereof - Google Patents

Abstract

The invention relates to an intermittent positive and negative coating process. The main points of the technology are as follows: feeding, feeding traction, front intermittent coating, first drying, reverse intermittent coating, second drying, and discharging The process steps of traction and receiving. The coating machine includes an unwinding unit, one side of the unwinding unit is provided with a feeding traction device, and one side of the feeding traction device is provided with a positive coating unit, which also includes a first drying device and a second drying device , one side of the first drying device is provided with a reverse coating unit, one side of the second drying device is provided with a discharge traction unit, and one side of the discharge traction unit is provided with a winding unit; the positive coating unit includes a positive coating machine base, The front coating machine base is provided with a first guide rubber roller, a front coating device and a front coating driving device; Paint drive unit. The process and coating structure are simple, and the positioning coating is precise.

Description

An intermittent front and back coating process and its coating machine

【Technical field】

The invention relates to a coating or process and a coating machine. The process and the coating machine can be applied to the field of coating or printing, in particular to an intermittent front and back coating process and a coating machine.

【Background technique】

Due to actual needs, it is usually coated on the front and back sides of the substrate (such as laser film), and the coating area on each side needs to have a certain interval. The existing front and back coating process is relatively complicated, which leads to complex results of the coating machine, low work efficiency, and low accuracy of intermittent coating, resulting in low yield.

【Content of invention】

The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a simple process, high coating precision intermittent front and back coating process, another purpose is to provide a simple structure, high work efficiency, intermittent coating precision High intermittent front and back coater.

In order to solve the above problems, the present invention adopts the following technical solutions:

A kind of intermittent positive and negative coating process is characterized in that comprising the following steps:

A: Loading, put the substrate to be coated on the unwinding unit;

B: feeding traction, the base material on the unwinding unit is pulled out by the feeding traction device;

C: Intermittent coating on the front side, the substrate is inserted between the front coating roller on the front coating unit and the first guide rubber roller from the discharge end of the feeding traction device, the front coating unit is equipped with a scraper, and the front coating roller There is a coating liquid tank on the front coating roller. After the coating liquid tank is filled with coating liquid through the front coating storage tank on the positive coating unit, the excess coating liquid on the peripheral surface of the front coating roller is scraped off by a scraper, and then the control The front coating roller and the first guide rubber roller on the front coating unit reciprocate and move closer and farther away to apply the coating solution on the substrate, so that the coating solution in the coating solution tank of the front coating roller is coated on the front side of the substrate , complete the intermittent coating on one side of the substrate;

D: For the first drying, the substrate that has been intermittently coated on the front is connected to the first drying device for drying;

E: Intermittent coating on the reverse side, the base material after the first drying is connected between the reverse coating roller and the second guide rubber roller on the reverse coating unit. The unit is provided with a scraper, and the reverse coating roller scrapes off excess coating liquid on the circumferential surface of the reverse coating roller through the scraper after the coating liquid tank is filled with the coating liquid through the reverse coating holding tank on the reverse coating unit. , and then control the back coating roller and the second guide roller on the back coating unit to reciprocate and move away from the coating solution on the substrate, so that the coating solution in the coating solution tank on the back coating roller is coated on the substrate respectively. On the opposite side of the substrate, complete the intermittent coating on the other side of the substrate;

F: The second drying, the substrate that has been intermittently coated on the front and back sides is connected to the second drying device for drying;

G: Discharge traction, connect the substrate after the second drying to the discharge traction unit for traction;

H: Rewinding, rewinding the substrate pulled out by the discharge traction unit.

The intermittent front and back coating process as described above is characterized in that: the first guide roller described in step C rotates fixedly and guides the substrate, and the front coating roller presses toward the first guide The rubber roller moves to spread the paint on one side of the substrate.

The above-mentioned intermittent front and back coating process is characterized in that: the second guide roller described in the step E is fixed to rotate and guides the substrate, and the reverse coating roller is pressed toward the second guide. The rubber roller moves to spread the paint on the other side of the substrate.

An intermittent positive and negative coating machine, including an unwinding unit, the side of the discharge end of the unwinding unit is provided with a feeding traction device, characterized in that: the discharge end of the feeding traction device is a The front side is provided with a positive coating unit for intermittent coating on one side of the substrate, and it also includes a first drying device and a second drying device, and the feed end of the first drying device is located at the positive coating unit. One side of the discharge end, the discharge end side of the first drying device is provided with a reverse coating unit for intermittent coating on the other side of the substrate, and the feed end of the second drying device is set at the The side of the discharge end of the reverse coating unit, the discharge end side of the second drying device is provided with a discharge traction unit, and the discharge end side of the discharge traction unit is provided with a winding unit The positive coating unit includes a positive coating machine base, which is provided with a first guiding rubber roller guided to the base material, and a front coating device that can coat the coating liquid on one side of the base material on the described positive coating machine base And the positive coating driving device that can drive the described front coating device to reciprocate close to and away from the first guide glue roller for intermittent coating on one side of the substrate, the described front coating device includes a front coating roller, and the described front coating The roller is provided with a coating liquid tank; the reverse coating unit includes a reverse coating machine base, and the second guide rubber roller guiding the substrate is provided on the reverse coating machine base, which can coat the other side of the substrate The reverse coating device for coating liquid and the reverse coating drive device for driving the reverse coating device to reciprocate and move away from the second guide rubber roller to intermittently coat the other side of the substrate, and the reverse coating device includes a reverse coating device Coating roller, the said reverse coating roller is provided with a coating solution groove, and said front coating unit and reverse coating unit are equipped with a device capable of scraping off excess coating solution on the circumferential surface of the front coating roller and the reverse coating roller. scraper.

The intermittent front and back coating machine as described above is characterized in that: the front coating machine base is provided with a front coating guide rail, and the front coating device includes a front coating guide rail that can slide on the front coating guide rail. Sliding seat, the front coating sliding seat is provided with a front coating storage tank and a front coating roller arranged opposite to the first guide glue roller and capable of dipping into the coating solution in the front coating storage tank, said A positive coating sliding seat is provided with a positive coating nut seat, and the positive coating driving device includes a positive coating driving motor capable of reciprocating forward and reverse rotation, and one end of the rotating shaft of the positive coating driving motor is provided with a screw thread with the positive coating nut seat. Connected positive coating screw.

The intermittent positive and negative coating machine as described above is characterized in that: the reverse coating guide rail is provided on the reverse coating machine base, and the reverse coating device includes a reverse coating that can slide on the reverse coating guide rail. Coating sliding seat, the reverse coating sliding seat is provided with a reverse coating storage tank and a reverse coating roller that is arranged opposite to the second guide glue roller and can be stained with the coating in the reverse coating storage tank. The reverse coating sliding seat is provided with a reverse coating nut seat, and the reverse coating driving device includes a reverse coating driving motor capable of reciprocating forward and reverse rotation, and one end of the rotating shaft of the reverse coating driving motor is provided with a threaded connection with the reverse coating nut seat anti-coating screw.

The intermittent front and back coating machine as described above is characterized in that: the feeding traction device, the front coating machine base, the reverse coating machine base, and the discharge traction unit are all equipped with vertically extending support wallboards, The first drying device and the second drying device are supported and fixed on the top of the supporting wallboard.

The intermittent front and back coating machine as described above is characterized in that: the support wallboard is provided with a plurality of guide rollers for guiding the base material.

The batch type front and back coating machine as above is characterized in that: the front coating roller and the back coating roller are provided with coating tanks, and the front coating unit and the reverse coating unit are equipped with A scraper for scraping off excess coating liquid on the peripheral surface of the front coating roller and the reverse coating roller.

The beneficial effects of the present invention are: the front intermittent coating is realized by the reciprocating approach and distance between the front coating roller and the first guide rubber roller, the base material is between the front coating roller and the first guide rubber roller, when the front The coating roller approaches the first guide rubber roller so that the peripheral surface of the front coating roller is in contact with one side of the substrate, so that the coating in the coating liquid tank on the front coating roller will be coated on the substrate, completing a front coating, and then the front coating The roller is far away from the first guide roller, the base material walks a certain distance, and then the front coating roller is close to the coating, so that the intermittent coating is completed, and the back coating process is the same as that of the front side. The coating process is simple and the accuracy is high; through The scraper scrapes off the excess coating liquid on the peripheral surface of the front coating roller and the reverse coating roller, so that the coating is clearer; the front coating roller controlled by the forward and reverse rotation of the front coating drive motor moves back and forth to the first guide roller , that is, reciprocating close or far away, the reverse coating structure is consistent with the front coating, its structure is simple, easy to control, and accurate coating.

【Description of drawings】

Fig. 1 is a process flow diagram of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the structural representation of reverse coating unit of the present invention;

Fig. 4 is a schematic structural view of the front coating roller of the present invention.

【detailed description】

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in Figures 1 to 4, a batch-type positive and negative coating process is characterized in that it comprises the following steps:

A: Loading, put the substrate to be coated on the unwinding unit 1.

B: feeding traction, the base material on the unwinding unit 1 is pulled out by the feeding traction device 2 .

C: the front side is intermittently coated, and the base material is connected between the front coating roller 31 and the first guide rubber roller 32 on the front coating unit 3 from the discharge end of the feeding traction device 2, and the front coating roller 31 is coated Apply the coating solution, and then control the front coating roller 31 and the first guide glue roller 32 on the front coating unit 3 to reciprocate and move away to apply the coating solution on the substrate to complete the intermittent coating on one side of the substrate. Its concrete steps are, the front coating roller 31 is provided with the coating solution tank 11, and the front coating unit 3 is equipped with a scraper 12, and the front coating roller 31 makes the coating solution tank 11 by the front coating storage tank 35 on the front coating unit 3. After loading the coating solution, scrape off the excess coating solution on the surface of the front coating roller 31 circumference by scraper 12, and finish coating the coating solution on the front coating roller 31, so that only there is coating solution in the coating solution tank 11, the first The guide glue roller 32 rotates fixedly and guides the substrate, and the front coating roller 31 moves to the first guide glue roller 32 to coat the paint in the coating liquid tank 11 on one side of the substrate.

D: the first drying, the substrate that has been intermittently coated on the front is connected to the first drying device 4 for drying.

E: Intermittent coating on the reverse side, the base material after drying for the first time is connected between the reverse coating roller 51 on the reverse coating unit 5 and the second guide rubber roller 52, the reverse coating on the reverse coating unit 5 Apply the coating liquid on the roller 51, then control the reciprocating approach and distance between the reverse coating roller 51 and the second guide rubber roller 52 on the reverse coating unit 5, and apply the coating liquid on the substrate to complete the other side of the substrate Intermittent coating. Its specific steps are, the front coating roller 31 and the back coating roller 51 are all provided with the liquid coating tank 11, the reverse coating unit 5 is provided with a scraper 12, and the reverse coating roller 51 passes through the reverse coating holding tank 55 on the reverse coating unit 5. After the coating solution tank 11 is loaded with the coating solution, the excess coating solution on the peripheral surface of the front coating roller 31 and the back coating roller 51 is scraped off by the scraper 12, so that only the coating solution is arranged in the coating solution tank 11, and the second guide The glue roller 52 rotates fixedly and guides the base material, and the reverse coating roller 51 moves to the second guide glue roller 52 to coat the paint in the coating liquid tank 11 on the other side of the substrate.

F: the second drying, the substrate that has been intermittently coated on the front and back sides is connected to the second drying device 6 for drying;

G: discharge traction, connect the substrate after the second drying to the discharge traction unit 7 for traction;

H: rewinding, rewinding the base material pulled out by the discharge traction unit 7 . Thereby complete positive and negative intermittent coating.

As shown in Fig. 2 to Fig. 4, a kind of intermittent front and back coating machine comprises unwinding unit 1, and the side of the discharge end of unwinding unit 1 is provided with feeding traction device 2, and the outlet of feeding traction device 2 One side of the feed end is provided with a positive coating unit 3 that is intermittently coated on one side of the substrate, and it also includes a first drying device 4 and a second drying device 6. The feed end of the first drying device 4 is located at the positive coating One side of the discharge end of the unit 3, the discharge end side of the first drying device 4 is provided with a reverse coating unit 5 that is intermittently coated on the other side of the substrate, and the feed end of the second drying device 6 is located at the reverse coating unit 5, the discharge end side of the second drying device 6 is provided with a discharge traction unit 7, and the discharge end side of the discharge traction unit 7 is provided with a winding unit 8; Comprising a positive coating machine base 331, the positive coating machine base 331 is provided with the first guide rubber roller 32 guided to the substrate, the front coating device 30 that can coat the coating liquid on one side of the substrate and can drive the front coating device 30 reciprocatingly close to and away from the positive coating driving device 33 of the first guiding embossing roller 32 for intermittent coating on one side of the substrate. The positive coating machine base 331 is provided with a positive coating guide rail 332, and the front coating device 30 includes a positive coating sliding seat 334 that can slide on the positive coating guide rail 332, and the positive coating sliding seat 334 is provided with a front coating holding tank 35 and the first Guide beading roller 32 is relatively arranged and can be stained with the face paint roller 31 of the coating liquid in the face paint holding tank 35, and face paint roller 31 is arranged on the first guide bead roller 32 right sides, also can be set up and down, and face paint Roller 31 is provided with coating solution tank 11, and coating sliding seat 334 is provided with scraper 12 that can scrape off excess coating solution on the surface of front coating roller 31, and when front coating roller 31 rotates in front coating holding tank 35, it can The cloth liquid can be loaded into the coating liquid tank 11, and the excess coating liquid in the circumferential direction of the front coating roller 31 is scraped off by the scraper 12, so that when the first guide rubber roller 32 is in contact with one side of the substrate, the coating liquid tank The coating liquid in 11 can be coated on the substrate. The sliding seat 334 is provided with a positive coating nut seat 335, and the positive coating driving device 33 includes a positive coating driving motor 333 that can reciprocate forward and reverse, and one end of the rotating shaft of the positive coating driving motor 333 is provided with a positive coating nut seat 335 threaded connection. Coating screw rod 336. The reverse coating unit 5 comprises a reverse coating machine base 531, which is provided with a second guiding rubber roller 52 guided to the base material, a reverse coating device 50 and a drive that can coat the coating liquid on the other side of the base material on the reverse coating machine base 531. The reverse coating device 50 reciprocates close to and away from the reverse coating driving device 53 for intermittently coating the other side of the substrate with the second guide embossing roller 52 . The reverse coating machine base 531 is provided with a reverse coating guide rail 532, and the reverse coating device 50 includes a positive coating slide seat 534 that can slide on the reverse coating guide rail 532. Two guide rollers 52 are relatively arranged and can be stained with the reverse paint roller 51 of the coating in the reverse paint holding tank 55. The reverse paint roller 51 is located on the second guide roller 52 left side, and can also be arranged up and down. The reverse paint roller 51 is provided with coating solution groove 11, and back coating sliding seat 534 is provided with the scraper 12 that can scrape off the redundant coating solution of back coating roller 51 circumferential surface, and its working principle is identical with front coating. Coating sliding seat 534 is provided with anti-coating nut seat 335, and anti-coating driving device 53 comprises the anti-coating driving motor 533 that can reciprocate forward and reverse, and one end of the rotating shaft of anti-coating driving motor 533 is provided with anti-coating nut seat 535 threaded connection. Back-coat screw mandrel 536.

The feeding traction device 2, the front coating machine base 331, the reverse coating machine base 531, and the discharge traction unit 7 are all provided with a vertically extending supporting wallboard 9, supported by the first drying device 4 and the second drying device 6 Be fixed on the support wallboard 9 upper ends. The supporting wallboard 9 is provided with a plurality of guide rollers 10 for guiding the substrate. The reverse coating unit 5 is arranged on the right side of the positive coating unit 3, and the first drying device 4 guides the base material to the access end of the reverse coating unit 5 from above the positive coating unit 3, so that after the substrate passes through the first drying device 4 , the side of the substrate to be coated will be opposite to the circumferential coating surface of the reverse coating roller 51.

During production, the substrate is guided by the guide rollers 10 of each unit, and then passes through the feeding traction device 2, the front coating unit 3, the first drying device 4, the reverse coating unit 5, the second drying device 6, and the discharge traction device. Unit 7, and then to the winding unit 8 for winding to complete intermittent coating. When passing through the positive coating unit 3, the base material is attached to the first guide rubber roller 32 and moves continuously under the power of the traction device. The first guide rubber roller 32 rotates to guide the substrate, and the front coating roller 31 part Immersed in the coating solution in the front coating holding tank 35, the front coating roller 31 rotates so that the coating solution tank 11 on it is filled with the coating solution, and under the action of the scraper 12, the surface coating roller 31 is circumferentially coated with excess The liquid is scraped off, and at the same time, under the driving effect of the forward rotation of the forward coating drive motor 333, the forward coating sliding seat 334 moves toward the first guide rubber roller 32, so that the front coating roller 31 on the positive coating sliding base 334 is pressed toward the first guide The rubber roller 32 moves until the first guide roller 32 contacts one side of the substrate to complete the coating, and then the positive coating drive motor 333 reverses and resets to complete the coating, and then repeat the above steps for intermittent coating. The backside coating process is the same as the front side coating process. The coating structure is simple and the positioning is precise.

Claims (8)

1. the positive and negative coating process of batch (-type), it is characterised in that include following step:

A: feeding, is housed in base material to be coated on unwinding unit (1)；

B: pan feeding draws, will be on unwinding unit (1) by pan feeding traction apparatus (2) Base material traction pull-out；

The interval coating of C: front, the base material discharge end from pan feeding traction apparatus (2) is just linked into It is coated with the front coating roll (31) on unit (3) and first and guides between dandy roll (32), Just being coated with unit (3) and be provided with scraper (12), front coating roll (31) is provided with painting liquid bath (11), Front coating roll (31) is in front coating containment groove (35) by being just coated with on unit (3) After making painting liquid bath (11) load coating fluid, by scraper (12) by front coating roll (31) The unnecessary coating fluid of circumferential surface strikes off, and then controls front coating roll (31) and is just coated with unit (3) the first guiding dandy roll (32) on is reciprocal close and is coated in base material away from by coating fluid On, at base material just make the coating solution in the painting liquid bath (11) of front coating roll (31) On face, complete the one side interval coating of base material；

D: dry for the first time, is linked into the first drying by the base material completing front interval coating Device is dried in (4)；

The interval coating of E: reverse side, the base material after drying for the first time is linked into and counter is coated with unit (5) On reverse side coating roll (51) and second guide between dandy roll (52), reverse side coating roll (51) Being provided with painting liquid bath (11), the anti-unit (5) that is coated with is provided with scraper (12), described reverse side Coating roll (51) makes painting by anti-reverse side coating containment groove (55) being coated with on unit (5) After liquid bath (11) loads coating fluid, by scraper (12) by the circle of reverse side coating roll (51) The unnecessary coating fluid of perimeter surface strikes off, and then controls reverse side coating roll (51) and is coated with unit (5) with counter On the second guiding dandy roll (52) reciprocal near and be coated on base material away from by coating fluid, make The coating fluid being coated with in liquid bath (11) on reverse side coating roll (51) is respectively coated the reverse side at base material On, complete the another side interval coating of base material；

F: second time is dried, is linked into second by the base material completing positive and negative interval coating Drying unit is dried in (6)；

G: discharging is drawn, and the base material after second time being dried is linked into discharging traction unit (7) Pull traction；

H: rewinding, the base material rolling that discharging traction unit (7) is pulled out.

The positive and negative coating process of batch (-type) the most according to claim 1, it is characterised in that: Base material is also guided by the first fixing rotation of guiding dandy roll (32) described in described step C, It is mobile, by coatings that described front coating roll (31) guides dandy roll (32) to first In base material one side.

The positive and negative coating process of batch (-type) the most according to claim 1, it is characterised in that: Base material is also guided by the second fixing rotation of guiding dandy roll (52) described in described step E, It is mobile, by coatings that described reverse side coating roll (51) guides dandy roll (52) to second On base material another side.

4. the positive and negative coating machine of batch (-type), including unwinding unit (1), described unreels list The discharge end side of unit (1) is provided with pan feeding traction apparatus (2), it is characterised in that: described The discharge end side of pan feeding traction apparatus (2) is provided with the just painting list at base material one side interval coating Unit (3), it also includes the first drying unit (4) and the second drying unit (6), described The feeding end of the first drying unit (4) be located at described just painting unit (3) discharge end side, The discharge end side of described the first drying unit (4) is provided with at base material another side interval coating The anti-unit (5) that is coated with, the feeding end of described the second drying unit (6) is located at described anti- It is coated with the discharge end side of unit (5), the discharge end side of described the second drying unit (6) Being provided with discharging traction unit (7), the discharge end side of described discharging traction unit (7) sets There is rolling unit (8)；Described just painting unit (3) includes and is just coated with support (331), institute Just painting support (331) stated is provided with the first guiding dandy roll (32), the energy guiding base material Base material one side is coated the front application device (30) of coating fluid and positive topcoating described in driving Material device (30) is reciprocal close and guides dandy roll (32) to base material one away from described first The just painting driving means (33) of face interval coating, described front application device (30) includes Front coating roll (31), described front coating roll (31) is provided with painting liquid bath (11)；Institute The anti-unit (5) that is coated with stated includes the anti-support (531) that is coated with, and described counter is coated with on support (531) It is provided with second that base material is guided to guide dandy roll (52), base material another side can be coated coating Reverse side application device (50) described in the reverse side application device (50) of liquid and driving is the most close With away from described second guiding dandy roll (52) to base material another side interval coating anti-painting Driving means (53), described reverse side application device (50) includes reverse side coating roll (51), Described reverse side coating roll (51) is provided with painting liquid bath (11), described just painting unit (3) Counter it is coated with on unit (5) that be equipped with can be by front coating roll (31) and reverse side coating roll (51) The scraper (12) that the unnecessary coating fluid of peripheral surface strikes off.

The positive and negative coating machine of batch (-type) the most according to claim 4, it is characterised in that: institute Just painting support (331) stated is provided with and is just coated with guide rail (332), described front application device (30) just painting sliding seat (334) above can slided is included in described just painting guide rail (332), Described just painting sliding seat (334) is provided with front coating containment groove (35) and with described First guiding dandy roll (32) is positioned opposite and can be stained with in front coating containment groove (35) The described front coating roll (31) of coating fluid, described just painting sliding seat (334) is provided with Just being coated with nut seat (335), described just painting driving means (33) includes the reciprocal rotating of energy Just being coated with driving motor (333), described just painting drives rotating shaft one end of motor (333) to be provided with Be just coated with just painting screw mandrel (336) that nut seat (335) is threadeded.

The positive and negative coating machine of batch (-type) the most according to claim 4, it is characterised in that: institute The anti-support (531) that is coated with stated is provided with the anti-guide rail (532) that is coated with, described reverse side application device (50) include can described counter be coated with guide rail (532) upper slide counter be coated with sliding seat (534), The described anti-sliding seat (534) that is coated with is provided with reverse side coating containment groove (55) and with described Second guiding dandy roll (52) is positioned opposite and can be stained with in reverse side coating containment groove (55) The described reverse side coating roll (51) of coating, the described anti-sliding seat (534) that is coated with is provided with instead Being coated with nut seat (335), the described anti-driving means (53) that is coated with includes the anti-of the reciprocal rotating of energy Be coated with and drive motor (533), described anti-be coated with drive rotating shaft one end of motor (533) be provided with Counter it be coated with threaded counter of nut seat (535) and be coated with screw mandrel (536).

The positive and negative coating machine of batch (-type) the most according to claim 4, it is characterised in that: institute The pan feeding traction apparatus (2) stated, just be coated with support (331), counter be coated with support (531), discharging is led Draw and on unit (7), be equipped with vertically extending support wallboard (9), the first described drying dress Put (4) and the second drying unit (6) is supported and fixed on described support wallboard (9) upper end.

The positive and negative coating machine of batch (-type) the most according to claim 7, it is characterised in that: institute The support wallboard (9) stated is provided with multiple guide roller (10) guiding base material.