CN112455069A

CN112455069A - Electrothermal film printing system

Info

Publication number: CN112455069A
Application number: CN202110133978.5A
Authority: CN
Inventors: 贾玉秋
Original assignee: Guangdong Warmtact Electrical Heating Technology Co ltd
Current assignee: Guangdong Warmtact Electrical Heating Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-03-09
Anticipated expiration: 2041-02-01
Also published as: CN112455069B

Abstract

The invention discloses an electrothermal film printing system, which belongs to the technical field of electrothermal film manufacturing and comprises a control device, a machine table, a film unreeling device, a silver paste printing device, a first box type dryer, a carbon paste printing device, a second box type dryer, a box type air cooler and a film reeling device, wherein the film unreeling device, the silver paste printing device, the first box type dryer, the carbon paste printing device, the second box type dryer, the box type air cooler and the film reeling device are sequentially arranged along; the silver paste printing device, the first box type dryer, the carbon paste printing device and the second box type dryer are respectively arranged on the machine table; silver thick liquid printing device and carbon thick liquid printing device all adopt automatic printing mode. Compared with the existing electrothermal film printing, the continuous printing can be realized, the finished product is completed once, the plate alignment is facilitated, the production efficiency of the electrothermal film is improved, the resistance value of the electrothermal film can be kept stable, and the yield of products is improved.

Description

Electrothermal film printing system

Technical Field

The invention relates to the technical field of electrothermal film manufacturing, in particular to an electrothermal film printing system.

Background

The electrothermal film is composed of a plurality of carbon strips for heating and silver strips connected to two ends of the carbon strips for electrifying the carbon strips, so that the printed electrothermal film needs to be printed twice, firstly, the silver strips are printed, and then, the carbon strips are printed. The existing electrothermal film printing generally adopts screen printing, silver bar printing is carried out on a base film on a printing table, then drying and rolling are carried out, carbon bar printing is carried out on a semi-finished product after rolling, then drying and rolling are carried out to form a finished product, the screen printing needs one-section intermittent printing, secondary printing is carried out after rolling is carried out firstly after one-time printing is finished, continuous production cannot be carried out, finished products are finished once, and therefore the existing electrothermal film printing is low in production efficiency and not suitable for modern production.

It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide an electrothermal film printing system, and aims to solve the problems of low automation degree and low production efficiency of the existing electrothermal film printing system.

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

an electrothermal film printing system comprises a control device, a machine table, a film unreeling device, a silver paste printing device, a first box type dryer, a carbon paste printing device, a second box type dryer, a box type air cooler and a film reeling device, wherein the film unreeling device, the silver paste printing device, the first box type dryer, the carbon paste printing device, the second box type dryer, the box type air cooler and the film reeling device are sequentially arranged along the film advancing direction; the silver paste printing device, the first box type dryer, the carbon paste printing device and the second box type dryer are respectively arranged on the machine table; the silver paste printing device and the carbon paste printing device respectively comprise a scraper plate, a pushing device used for moving the scraper plate, a silk screen plate arranged below the scraper plate and connected with the pushing device, and a first hydraulic device used for enabling the pushing device to lift; the pushing device comprises a first driving mechanism and a first transmission mechanism, wherein the first transmission mechanism comprises a driving wheel, a driven wheel and a transmission belt wound on the driving wheel and the driven wheel; the driving wheel is fixedly arranged on an output shaft of the first driving mechanism, the scraper is fixedly connected with the transmission belt, and a second hydraulic device is connected above the scraper.

In the electrothermal film printing system, the pushing device further comprises a base for mounting the first driving mechanism and the first transmission mechanism, and the first hydraulic device is arranged below the base and connected with the base; a cross beam is arranged above the base, and a first industrial camera is arranged on the cross beam; the bottom of the cross beam is connected with a guide post, and the lower end of the guide post downwards penetrates through the machine base and then is fixedly arranged on the machine table.

In the electrothermal film printing system, a guide rod parallel to the transmission belt is fixedly arranged on the front side of the base; the scraper is connected with a sliding block movably connected with the guide rod; and two clamping blocks for clamping the transmission belt are arranged on the sliding block.

In the electrothermal film printing system, the number of the scraping plates in the silver paste printing device and the carbon paste printing device is 2.

In the electrothermal film printing system, a bracket for mounting the silk screen plate is fixedly arranged on the front side of the base; the bracket comprises a vertical rod fixedly connected with the base and a horizontal mounting rod vertical to the vertical rod; and a first probe used for sensing the sliding block is installed at the top end of the longitudinal rod.

In the electrothermal film printing system, the silver paste printing device is also provided with a film dotting device, and the carbon paste printing device is provided with a second probe which is positioned on the same straight line with the film dotting device; the film dotting device and the second probe are respectively arranged on the horizontal mounting rod.

In the electrothermal film printing system, the film unreeling device comprises a film unreeling machine, a film tensioning machine and a film traction machine which are sequentially arranged along the film advancing direction; the film unreeling machine comprises a first rack, a first winding roller, a first upper guide roller, a second driving mechanism and a second industrial camera, wherein the first winding roller and the first upper guide roller are sequentially arranged on the first rack along the film advancing direction; the film tensioning machine comprises a second rack, a second upper guide roller and a third upper guide roller which are sequentially arranged on the second rack along the film advancing direction, and a first lower guide roller and a second lower guide roller which are sequentially arranged on the second rack along the film advancing direction; the film tractor comprises a third rack, and a traction mechanism, a third lower guide roller, a fourth upper guide roller and a fourth lower guide roller which are sequentially arranged on the third rack along the advancing direction of the film; the traction mechanism comprises an upper traction roller, a lower traction roller and a third driving mechanism for driving the lower traction roller to rotate; the upper traction roller is connected with a third hydraulic device used for lifting the upper traction roller; the machine table is provided with a fifth lower guide roller and a fifth upper guide roller which are used for bearing the film on the film tractor; and the fifth lower guide roller and the fifth upper guide roller are sequentially arranged at the end part of the machine table along the film advancing direction.

The electrothermal film printing system also comprises an exhaust fan, and the exhaust fan is connected with a plurality of exhaust pipes; the exhaust pipe is respectively connected with the first box type dryer and the second box type dryer, and the carbon paste printing device is arranged below the exhaust pipe.

In the electrothermal film printing system, the box-type air cooling machine comprises an air cooling device and a conveying device; the conveying surface of the conveying device is equal to the platform surface of the machine platform in height, and the output end of the conveying device is sequentially provided with a film pressing roller and a sixth upper guide roller along the advancing direction of the film.

The electrothermal film printing system in, the film coiling mechanism includes the fourth frame, along the sixth deflector roll, the seventh deflector roll and the second winding roller of going forward direction order arrangement in the fourth frame for drive second winding roller pivoted fourth drive mechanism and locate the third industry camera of second winding roller top.

Has the advantages that:

the invention provides an electrothermal film printing system, during actual work, a strip-shaped base film can be drawn out from a film unwinding device under the traction action of the unwinding device, a box type air cooling machine and a film winding device, and is printed with silver strips after being printed by a silver paste printing device; after the base film printed with the silver strips is dried by a box type dryer, printing the base film with the carbon strips by a carbon paste printing device; finally, winding the base film subjected to silver strip and carbon strip printing by a box type dryer and a box type air cooler; therefore, continuous printing can be realized, finished products can be finished at one time, the plate alignment is facilitated, the production efficiency of the electrothermal film is improved, the resistance value of the electrothermal film can be kept stable, and the yield of products is improved. Simultaneously, silver thick liquid printing device and carbon thick liquid printing device all adopt automatic printing mode, and the degree of automation of system is higher.

Drawings

Fig. 1 is a schematic structural diagram of an electrothermal film printing system provided by the present invention.

Fig. 2 is a schematic structural diagram of the silver paste printing apparatus.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is a schematic structural diagram of the silver paste printing apparatus.

Fig. 6 is a schematic structural diagram of the carbon paste printing apparatus.

Fig. 7 is an enlarged view of a portion C in fig. 6.

Fig. 8 is a schematic structural diagram of the film unreeling machine.

Fig. 9 is a schematic structural view of the film tensioner.

Fig. 10 is a schematic structural view of the film tractor.

Fig. 11 is a schematic structural view of the box-type air cooler.

Fig. 12 is a schematic structural diagram of the film winding device.

Description of the main element symbols:

1-a film unwinding device; 101-film unreeling machine; 1011-a first frame; 1012-first winding roller; 1013-a first upper guide roll; 1014-a second drive mechanism; 1015-a second industrial camera; 1016-a first gear; 1017-second gear; 102-a film tensioner; 1021-a second chassis; 1022-a second upper guide roller; 1023-a third upper guide roller; 1024 — a first lower guide roller; 1025-a second lower guide roller; 103-film tractor; 1030-a third drive mechanism; 1031-a third rack; 1032-an upper pull roll; 1033-lower pulling roll; 1034-a third lower guide roller; 1035 — fourth upper guide roll; 1036-a fourth lower guide roll; 1037-a support block; 1038-a slide; 1039-a third hydraulic device;

2-silver paste printing device; 201-a scraper; 202-screen printing a screen plate; 203-a first hydraulic device; 204 — a first drive mechanism; 205-a driving wheel; 206-driven wheel; 207-a transmission belt;

3-a first box dryer; 4-a carbon paste printing device; 5-a third box type dryer; 6-a second box type dryer;

7-box type air cooling machine; 701-a conveying device; 702-air cooling device;

8-a film winding device; 801-a fourth rack; 802-a sixth lower guide roll; 803-seventh upper guide roll; 804 — a second winding roller; 805-a fourth drive mechanism; 806-a third industrial camera; 807-a third gear; 808-a fourth gear;

9-a machine platform; 10-a second hydraulic device; 11-a machine base; 12-a cross beam; 13-a first industrial camera; 14-a guide post; 15-concave stage; 16-a guide bar; 17-a support plate; 18-a slide block; 19-a clamping block; 20-a longitudinal bar; 21-horizontally mounting the rod; 22-a first probe; 23-probe mounting rod; 24-a thin film dotting device; 25-a second probe; 26-a chute; 27-a fifth lower guide roll; 28-a fifth upper guide roll; 29-an exhaust fan; 30-an exhaust pipe; 31-a shield; 32-film press roll; 33-sixth upper guide roller.

Detailed Description

The invention provides an electrothermal film printing system, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" 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 otherwise specified.

Referring to fig. 1 to 7, the present invention provides an electric heating film printing system, which includes a control device (not shown in the drawings), a machine table 9, a film unwinding device 1, a silver paste printing device 2, a first box type dryer 3, a carbon paste printing device 4, a second box type dryer 6, a box type air cooler 7 and a film winding device 8, which are sequentially arranged along the advancing direction of a film; the silver paste printing device 2, the first box type dryer 3, the carbon paste printing device 4 and the second box type dryer 6 are respectively arranged on the machine table 9; the silver paste printing device 2 and the carbon paste printing device 4 both comprise a scraper 201, a pushing device used for moving the scraper 201, a silk screen plate 202 arranged below the scraper 201 and connected with the pushing device, and a plurality of first hydraulic devices 203 used for enabling the pushing device to lift; the pushing device comprises a first driving mechanism 204 and a first transmission mechanism, wherein the first transmission mechanism comprises a driving wheel 205, a driven wheel 206 and a transmission belt 207 wound around the driving wheel 205 and the driven wheel 206. The first driving mechanism 204 is a forward and reverse rotation motor, the driving wheel 205 is fixedly arranged on an output shaft of the first driving mechanism 204, the scraper 201 is fixedly connected with the transmission belt 207, and the second hydraulic device 10 is connected above the scraper 201; when the first driving mechanism 204 is operated, the driving belt 207 wound around the driving wheel 205 and the driven wheel 206 can reciprocate back and forth, and further the squeegee 201 is driven to move to perform a printing operation.

Wherein, above-mentioned controlling means is used for controlling and adjusting film unwinding device 1, silver thick liquid printing device 2, first box drying-machine 3, carbon thick liquid printing device 4, box drying-machine 6 of second, box air-cooled machine 7 and film coiling mechanism 8's user state to make above-mentioned device can far change as required according to the operation flow, mutually support the printing of accomplishing the electric heat membrane.

The film unwinding device 1 is used for placing an unprinted base film roll, and the film winding device 8 is used for winding an electrothermal film printed with carbon paste and silver paste. In actual work, by means of the traction action of the film unwinding device 1, the box type air cooling machine 7 and the film winding device 8, the long-strip-shaped base film can be drawn out from the film unwinding device 1 and is printed with silver strips after being printed by the silver paste printing device 2; then the base film moves forward continuously, so that the part of the base film printed with the silver strips reaches the area where the box type dryer is located, and the silver strips are dried after passing through the first box type dryer 3; after the silver strips are dried, the part of the base film printed with the silver strips reaches the area where the carbon paste printing device 4 is located, and the carbon strips are printed on the base film area printed with the silver strips through the printing of the carbon paste printing device 4; after the silver strips and the carbon strips are printed, the part of the base film printed with the silver strips and the carbon strips continues to move to the area of the second box type dryer 6, so that the carbon strips are dried; the part of the base film printed with the silver strips and the carbon strips passes through a second box type dryer 6 and then forwards moves to a box type air cooler 7 for cooling, and after cooling is finished, the electrothermal film printed with the silver strips and the carbon strips is wound through a film winding device 8. Compared with the existing electrothermal film printing operation, the printing can be continuously carried out, finished products can be completed at one time, and the production efficiency of the electrothermal film is improved.

In addition, the first hydraulic device 203 may be a cylinder, which is disposed below the pushing device, and a piston rod of the cylinder is fixedly connected to the bottom of the pushing device; the machine table 9 is provided with a recessed table 15 for accommodating the first hydraulic device 203. Simultaneously silver thick liquid printing device 2 and carbon thick liquid printing device 4 all adopt automatic printing mode, can make the printing operation degree of automation of electric heat membrane further improve, specifically, silver thick liquid printing device 2 and carbon thick liquid printing device 4's working method as follows:

before the silk-screen printing is performed on the base film, the pushing device and the silk-screen plate 202 are lifted upwards by the first hydraulic device 203. When the base film is required to be subjected to silk-screen printing of silver paste and carbon paste, the first hydraulic device 203 enables the pushing device and the silk-screen printing screen plate 202 to descend; meanwhile, the second hydraulic device 10 and the first hydraulic device 203 can use an air cylinder as well, when the screen plate 202 descends to the surface of the base film, the second hydraulic device 10 pushes down the scraper 201 to make the screen tightly contact with the surface of the base film, so as to ensure that silver paste and carbon paste can permeate the base film; after the squeegee 201 is pushed down, the first driving mechanism 204 is operated to move the squeegee 201 back and forth along the surface of the base film by the movement of the belt 207, so that the silver paste and the carbon paste are printed on the base film.

Referring to fig. 2, fig. 3 and fig. 5, in another embodiment, the pushing device further includes a base 11 for mounting the first driving mechanism 204 and the first transmission mechanism; the first driving mechanism 204 is fixedly disposed on the back of the base 11, and an output shaft of the first driving mechanism 204 passes through the base 11, so that a driving wheel 205 located on the front side of the base 11 is fixedly disposed on the output shaft of the first driving mechanism 204.

Referring to fig. 5, further, the first hydraulic device 203 is disposed below the base 11 and connected to the bottom of the base 11; meanwhile, a beam 12 is arranged above the base 11, and a first industrial camera 13 is arranged on the beam 12; through setting up the industry camera, the staff can look over the materials condition of silver thick liquid and carbon thick liquid with the help of monitored control system, when treating to carry out the feed supplement, the staff arrives silver thick liquid printing device 2 again and carbon thick liquid printing device 4 other feed supplement of carrying on, therefore the whole production of electric heat membrane need not the special messenger and guards on, and degree of automation is higher. In addition, the bottom of the cross beam 12 is connected with two parallel guide posts 14, and the lower ends of the guide posts 14 penetrate through the machine base 11 downwards and then are fixedly arranged on the machine tables 9 at two sides of the concave table 15. When the first hydraulic device 203 works, the base 11 can move up and down along the guide column 14, so that the lifting process of the pushing device can be more stable.

Referring to fig. 2 and 4 and fig. 6 and 7, in another embodiment, a guide bar 16 parallel to the transmission belt 207 is fixedly arranged at the front side of the machine base 11; two guide rods 16 are arranged and are respectively positioned above and below the first transmission mechanism. Furthermore, a supporting plate 17 for mounting the second hydraulic device 10 is arranged above the scraping plate 201, and the supporting plate 17 is connected with a slide block 18 movably connected with the guide rod 16; furthermore, two clamping blocks 19 for clamping the transmission belt 207 are arranged on the sliding block 18, the clamping blocks 19 are arranged in grooves on the back surface of the sliding block 18, and a through hole suitable for the guide rod 16 to pass through is formed in the sliding block 18. When silver thick liquid printing device 2 and carbon thick liquid printing device 4 carry out the silk screen printing, first actuating mechanism 204 is in operating condition, and reciprocating motion's drive belt 207 can drive slider 18 along guide bar 16 round trip movement this moment to realize scraper blade 201's removal.

Referring to fig. 2 and 6, since the squeegee 201 pushes the paste to the side of the advancing direction of the squeegee 201 during screen printing, when the squeegee 201 moves back to the original position in the opposite direction, the squeegee 201 is difficult to push the paste back, and the screen printing effect is deteriorated. In order to solve the above problem and ensure that enough paste is printed on the surface of the base film during screen printing, in another embodiment, the number of the scraping plates 201 in the silver paste printing device 2 and the carbon paste printing device 4 is 2, and the upper ends of the scraping plates 201 are connected with the second hydraulic device 10.

In actual operation, when the moving direction of the squeegee 201 is consistent with the advancing direction of the film, the squeegee 201 near the film unwinding device 1 presses down the screen and makes the screen contact with the surface of the base film, and the other squeegee 201 is in a lifted state under the action of the second hydraulic device 10; if the moving direction of the scrapers 201 is opposite to the advancing direction of the film, the scraper 201 near one side of the film unwinding device 1 is in a lifted state, and the second hydraulic device 10 pushes down the scraper 201 on the other side.

Referring to fig. 2 and fig. 6, in another embodiment, a bracket for mounting the screen printing plate 202 is further fixedly arranged on the front side of the base 11; the bracket comprises a vertical rod 20 fixedly connected with the base 11 and a horizontal mounting rod 21 vertical to the vertical rod 20; wherein, the longitudinal rod 20 is provided with hole positions suitable for the guide rod 16 and the transmission belt 207 to pass through. The top end of the longitudinal rod 20 is provided with a first probe 22 for sensing the sliding block 18.

Referring to fig. 2 and 3, specifically, a probe mounting rod 23 is connected to a top end of the vertical rod 20, and the probe mounting rod 23 is perpendicular to the vertical rod 20 and is located above the screen printing plate 202. When the slide block 18 moves below the first probe 22, the first probe 22 feeds back a detection signal to the control device, and the control device controls the first driving mechanism 204 to stop the operation of the first driving mechanism 204, so that the slide block 18 always moves in a safe range and the bracket and the first transmission mechanism are not damaged.

Referring to fig. 2 and fig. 6, in another embodiment, the silver paste printing apparatus 2 is further provided with a thin film dotting apparatus 24, and the carbon paste printing apparatus 4 is provided with a second probe 25 which is in the same line with the thin film dotting apparatus 24; the film dotting device 24 and the second probe 25 are respectively disposed on the horizontal mounting rod 21, and in this embodiment, the film dotting device 24 may be a marker pen, and is mounted on the horizontal mounting rod 21 through a hoop structure.

Specifically, while the silver paste printing device 2 performs screen printing, the film dotting device 24 marks the surface of the base film on which the silver strips are printed. Treat that the base film that is printed with the silver bar when carbon thick liquid printing device 4 and second probe 25 detect and do the mark, second probe 25 feeds back detected signal to controlling means in, makes the base film stop advancing through controlling means, and at this moment, silver thick liquid printing device 2 and carbon thick liquid printing device 4 carry out the silk screen printing operation to the base film in two device regions simultaneously.

Referring to fig. 1, in another embodiment, the film unwinding device 1 includes a film unwinding machine 101, a film tensioning machine 102 and a film drawing machine 103 sequentially arranged along a film advancing direction; in actual operation, the base film is drawn out from the film unreeling machine 101, and enters the machine table 9 for printing and drying after being tensioned by the film tensioning machine 102 and drawn by the film drawing machine 103.

Referring to fig. 8, the film unreeling machine 101 further includes a first frame 1011, a first winding roller 1012 and a first upper guide roller 1013 sequentially disposed on the first frame 1011 along a film advancing direction, a second driving mechanism 1014 for driving the first winding roller 1012 to rotate, and a second industrial camera 1015 disposed above the first winding roller 1012. Wherein the first take-up roll 1012 is configured to receive a roll of substrate film; the second driving mechanism 1014 is a driving motor, and a first gear 1016 is arranged on an output shaft of the second driving mechanism 1014; said first gear 1016 meshes with a second gear 1017 arranged coaxially with the first winding roller 1012. In this embodiment, through set up second industry camera 1015 above first winding roller 1012, staff's accessible monitored control system looks over the in service behavior of base film, when waiting to change new base film book, the staff goes to the other new base film book of changing of film unreeling machine 101 again, need not the special messenger and guards on.

Referring to fig. 9, further, the film tensioning machine 102 includes a second frame 1021, a second upper guide roller 1022 and a third upper guide roller 1023 sequentially disposed on the second frame 1021 along the film advancing direction, and a first lower guide roller 1024 and a second lower guide roller 1025 sequentially disposed on the second frame 1021 along the film advancing direction; the base film is drawn from the base film roll, drawn by the first upper guide roll 1013, and then introduced into the film stretcher 102, and passes through the first lower guide roll 1024, the second upper guide roll 1022, the third upper guide roll 1023, and the second lower guide roll 1025 in order to stretch the base film, thereby drawing the base film more easily.

Referring to fig. 10, the film drawing machine 103 further includes a third frame 1031, and a drawing mechanism, a third lower guide roller 1034, a fourth upper guide roller 1035 and a fourth lower guide roller 1036 sequentially arranged on the third frame 1031 along the film advancing direction; after entering the film tractor 103, the base film passes through the traction mechanism, the third lower guide roller 1034, the fourth upper guide roller 1035 and the fourth lower guide roller 1036 in sequence, and finally travels to the area of the machine 9 where the silver paste printing apparatus 2 is located. In this embodiment, the film tractor 103 is provided with a third lower guide roller 1034, a fourth upper guide roller 1035 and a fourth lower guide roller 1036, so that the base film can be always under tension when it advances to the machine 9. Further, the pulling mechanism includes an upper pull roll 1032, a lower pull roll 1033, and a third drive mechanism 1030 for driving the lower pull roll 1033 to rotate. The third driving mechanism 1030 is a driving motor, and a second transmission mechanism is arranged between the third traction mechanism and the lower traction roller 1033; the second transmission mechanism comprises a main belt pulley fixedly arranged on an output shaft of the third driving mechanism 1030, an auxiliary belt pulley coaxially arranged with the lower traction roller 1033 and a transmission belt wound on the main belt pulley and the auxiliary belt pulley.

Further, a bracket for mounting the traction mechanism is further disposed on the third frame 1031, and the bracket includes support blocks 1037 disposed on two sides of the frame. When the lower pulling roll 1033 is installed, two ends of a rotating shaft for driving the lower pulling roll 1033 to rotate are rotatably connected with the supporting blocks 1037. Meanwhile, the supporting block 1037 is further provided with a sliding groove 26, and a sliding seat 1038 capable of sliding up and down along the inner walls of the two sides of the sliding groove 26 is arranged in the sliding groove 26; when the upper pulling roll 1032 is installed, both ends of a fixed shaft for supporting the upper pulling roll 1032 are respectively fixed on the sliding base 1038, and the upper pulling roll 1032 is rotatably installed on the fixed shaft.

Further, in order to enable the slide base 1038 to slide up and down along the slide groove 26, in the present embodiment, a third hydraulic device 1039 having a traction function, such as an air cylinder, is provided on the top of the supporting block 1037. When installed, the piston rod of the third hydraulic device 1039 passes down through the top of the support block 1037 and connects to the slide 1038. In actual operation, the third hydraulic device 1039 extends and retracts the piston rod to enable the sliding base 1038 to slide up and down along the sliding groove 26, so that the distance between the upper traction roller 1032 and the lower traction roller 1033 can be adjusted, and the printing requirements of base films with different thicknesses can be met.

Further, the machine table 9 is provided with a fifth lower guide roller 27 and a fifth upper guide roller 28 for receiving the film on the film tractor 103; the fifth lower guide roller 27 and the fifth upper guide roller 28 are sequentially arranged at the end of the machine table 9 along the advancing direction of the film, so that the base film drawn out from the film unwinding device 1 smoothly advances to the machine table 9 for printing, drying and other operations.

Referring to fig. 1, in another embodiment, the electrothermal film printing system further includes an exhaust fan 29, and the exhaust fan 29 is connected to a plurality of exhaust pipes 30; exhaust pipe 30 respectively with first box drying-machine 3 and second box drying-machine 6 are connected to make during the produced gas that has pungent smell of silver thick liquid and carbon thick liquid drying process passes through exhaust pipe 30 and exhaust fan 29 and discharges the tail gas treatment system, be favorable to improving the production environment in workshop. In addition, because the base film drying process back of being printed with silver thick liquid, the base film temperature is higher, therefore carbon thick liquid printing device 4 is when carrying out the silk screen printing, and carbon thick liquid meets the base film that the temperature is higher and can volatilize the gas of taking pungent smell. In order to solve the above problem, the exhaust ducts 30 are provided on both sides of the slurry printing apparatus 4 in this embodiment, so that the influence of the gas with pungent odor on the health of the present personnel is minimized.

Referring to fig. 1, in order to ensure that the printed carbon strips can be sufficiently dried after the carbon paste is printed on the base film, in the above embodiment, the machine 9 is further provided with a third box type dryer 5, and the third box type dryer 5 is disposed between the first box type dryer 3 and the carbon paste printing device 4. Meanwhile, in order to further reduce the influence of the workshop environment on the health of the personnel on site, a blocking cover 31 is also erected between the third box-type dryer 5 and the first box-type dryer 3, and the lower end of an exhaust duct 30 connected with an exhaust fan 29 extends into the blocking cover 31.

Referring to fig. 11, in another embodiment, the box-type air cooler 7 includes a conveying device 701 and an air cooling device 702 disposed on the conveying device 701; the conveying surface of the conveying device 701 is equal to the table top of the machine table 9 in height, and the output end of the conveying device 701 is sequentially provided with a film pressing roller 32 and a sixth upper guide roller 33 along the advancing direction of the film.

The film pressing roller 32 is disposed above the output end of the output device, and the sixth upper guide roller 33 is disposed in front of and below the output end of the output device. This embodiment is through setting up film compression roller 32, when can making the good base film of cooling send out by output device's output, bears certain resistance, makes the in-process of 8 rolling electric heat membranes of film coiling mechanism, and the electric heat membrane can the tensioning be convenient for pull.

Referring to fig. 12, in another embodiment, the film winding device 8 includes a fourth frame 801, a sixth lower guide roller 802, a seventh upper guide roller 803 and a second winding roller 804 sequentially disposed on the fourth frame 801 along the forward direction of the film, a fourth driving mechanism 805 for driving the second winding roller 804 to rotate, and a third industrial camera 806 disposed above the second winding roller 804.

The fourth driving mechanism 805 is a driving motor, and a third gear 807 is arranged on an output shaft of the fourth driving mechanism 805, and the third gear 807 is meshed with a fourth gear 808 coaxially arranged with the second winding roller 804. In this embodiment, the second winding roller 804 is used for receiving the printed electrothermal film under the action of the fourth driving mechanism 805 and winding the electrothermal film. In actual work, the cooled electric heating film sequentially passes through a sixth lower guide roller 802 and a seventh upper guide roller 803 and then is wound onto a second winding roller 804; the positional relationship of the sixth upper guide roller 33, the sixth lower guide roller 802 and the seventh upper guide roller 803 ensures that the electrothermal film is always in a tensioned state before being wound. In addition, through set up third industry camera 806 above second winding roller 804, the rolling condition of electric heat membrane is looked over to staff's accessible monitored control system, when treating that the rolling volume of electric heat membrane reaches the load, the staff takes off the electric heat membrane that has been rolled up again, need not the special messenger and guards on.

In summary, the invention provides an electrothermal film printing system, in actual operation, a strip-shaped base film can be drawn out from a film unwinding device under the traction action of the unwinding device, a box type air cooling machine and a film winding device, and is printed with silver strips after being printed by a silver paste printing device; after the base film printed with the silver strips is dried by a box type dryer, printing the base film with the carbon strips by a carbon paste printing device; finally, winding the base film subjected to silver strip and carbon strip printing by a box type dryer and a box type air cooler; therefore, continuous printing can be realized, finished products can be finished at one time, the plate alignment is facilitated, the production efficiency of the electrothermal film is improved, the resistance value of the electrothermal film can be kept stable, and the yield of products is improved. Simultaneously, silver thick liquid printing device and carbon thick liquid printing device all adopt automatic printing mode, and the degree of automation of system is higher.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims

1. An electrothermal film printing system is characterized by comprising a control device, a machine table, a film unreeling device, a silver paste printing device, a first box type dryer, a carbon paste printing device, a second box type dryer, a box type air cooler and a film reeling device, wherein the film unreeling device, the silver paste printing device, the first box type dryer, the carbon paste printing device, the second box type dryer, the box type air cooler and the film reeling device are sequentially arranged along the film advancing direction; the silver paste printing device, the first box type dryer, the carbon paste printing device and the second box type dryer are respectively arranged on the machine table; the silver paste printing device and the carbon paste printing device respectively comprise a scraper plate, a pushing device used for moving the scraper plate, a silk screen plate arranged below the scraper plate and connected with the pushing device, and a first hydraulic device used for enabling the pushing device to lift; the pushing device comprises a first driving mechanism and a first transmission mechanism, wherein the first transmission mechanism comprises a driving wheel, a driven wheel and a transmission belt wound on the driving wheel and the driven wheel; the driving wheel is fixedly arranged on an output shaft of the first driving mechanism, the scraper is fixedly connected with the transmission belt, and a second hydraulic device is connected above the scraper.

2. The system for printing the electrothermal film according to claim 1, wherein the pushing device further comprises a base for mounting the first driving mechanism and the first transmission mechanism, and the first hydraulic device is arranged below the base and connected with the base; a cross beam is arranged above the base, and a first industrial camera is arranged on the cross beam; the bottom of the cross beam is connected with a guide post, and the lower end of the guide post downwards penetrates through the machine base and then is fixedly arranged on the machine table.

3. The system as claimed in claim 2, wherein a guide bar parallel to the belt is fixedly installed at the front side of the frame; the scraper is connected with a sliding block movably connected with the guide rod; and two clamping blocks for clamping the transmission belt are arranged on the sliding block.

4. The electrothermal film printing system of claim 3, wherein the number of the scraping plates in the silver paste printing device and the carbon paste printing device is 2.

5. The electrothermal film printing system according to claim 3, wherein a bracket for mounting the screen printing plate is further fixedly arranged on the front side of the base; the bracket comprises a vertical rod fixedly connected with the base and a horizontal mounting rod vertical to the vertical rod; and a first probe used for sensing the sliding block is installed at the top end of the longitudinal rod.

6. The electrothermal film printing system according to claim 5, wherein the silver paste printing device is further provided with a thin film dotting device, and the carbon paste printing device is provided with a second probe which is in the same line with the thin film dotting device; the film dotting device and the second probe are respectively arranged on the horizontal mounting rod.

7. The electrothermal film printing system according to claim 1, wherein the film unwinding device comprises a film unwinding machine, a film tensioning machine and a film drawing machine, which are sequentially arranged in a film advancing direction; the film unreeling machine comprises a first rack, a first winding roller, a first upper guide roller, a second driving mechanism and a second industrial camera, wherein the first winding roller and the first upper guide roller are sequentially arranged on the first rack along the film advancing direction; the film tensioning machine comprises a second rack, a second upper guide roller and a third upper guide roller which are sequentially arranged on the second rack along the film advancing direction, and a first lower guide roller and a second lower guide roller which are sequentially arranged on the second rack along the film advancing direction; the film tractor comprises a third rack, and a traction mechanism, a third lower guide roller, a fourth upper guide roller and a fourth lower guide roller which are sequentially arranged on the third rack along the advancing direction of the film; the traction mechanism comprises an upper traction roller, a lower traction roller and a third driving mechanism for driving the lower traction roller to rotate; the upper traction roller is connected with a third hydraulic device used for lifting the upper traction roller; the machine table is provided with a fifth lower guide roller and a fifth upper guide roller which are used for bearing the film on the film tractor; and the fifth lower guide roller and the fifth upper guide roller are sequentially arranged at the end part of the machine table along the film advancing direction.

8. The electrothermal film printing system according to claim 1, further comprising an exhaust fan, wherein the exhaust fan is connected with a plurality of exhaust pipes; the exhaust pipe is respectively connected with the first box type dryer and the second box type dryer, and the carbon paste printing device is arranged below the exhaust pipe.

9. The electrothermal film printing system according to claim 1, wherein the box-type air-cooling machine comprises an air-cooling device and a conveying device; the conveying surface of the conveying device is equal to the platform surface of the machine platform in height, and the output end of the conveying device is sequentially provided with a film pressing roller and a sixth upper guide roller along the advancing direction of the film.

10. The system of claim 1, wherein the film winding device comprises a fourth frame, a sixth lower guide roller, a seventh upper guide roller and a second winding roller sequentially arranged on the fourth frame along the film advancing direction, a fourth driving mechanism for driving the second winding roller to rotate, and a third industrial camera arranged above the second winding roller.