Resin coating equipment for thermal printing sheet

Abstract

The invention discloses resin coating equipment for a thermal printing sheet, which relates to the field of thermal printing sheets and comprises a conveyor belt, a bracket fixedly connected to the outer side wall of the conveyor belt, coating equipment (not drawn in the figure) fixedly connected to the bottom of the bracket, and a fixing mechanism fixedly connected to the outer surface of the conveyor belt, the cleaning mechanism and the cleaning mechanism are fixedly connected to the bottom of the support. The cleaning mechanism comprises a first electric push rod fixedly connected to the bottom of the support, a transmission plate fixedly connected to the output end of the first electric push rod, and a cleaning sponge fixedly connected to the bottom of the transmission plate and used for absorbing quantitative cleaning liquid. The cleaning mechanism comprises a connecting frame movably arranged at the bottom of the support, an air pump fixedly connected to the outer side wall of the connecting frame, and an exhaust pipe fixedly connected to an air outlet of the air pump. According to the resin coating equipment for the thermal printing sheet, the electric heating wire and the air pump are started, hot air is conveyed to the outer surface of the thermal printing sheet, and drying and cleaning of the printing sheet are achieved.

Description

Technical Field

[0001] The invention relates to the field of thermal printing sheets, in particular to a resin coating device for thermal printing sheets. Background Art

[0002] A thermal printer sheet is a printing component used in thermal printers, typically consisting of a ceramic substrate, gold wiring, and micro-thermal resistor heating elements. The sheet's primary function is to generate heat through the heating element, causing a chemical reaction on the thermal paper, thereby forming text or images. To protect the sheet's surface from wear and chemical attack, and to extend its lifespan, it is typically coated with a resin.

[0003] Various protective agents and lubricants are used in the production process of thermal printing sheets. These substances will form a thin film on the surface of the printing sheet. The ingredients in the lubricant will dissolve the chemical bonds on the surface of the resin, allowing the lubricant to penetrate into the resin and form grease areas, thereby reducing the strength and toughness of the resin and even affecting its appearance. Therefore, the thermal printing sheet needs to be cleaned before coating.

[0004] The existing cleaning method is to use cleaning liquid to clean it, and use a cleaning machine to clean it. However, when the cleaning liquid is sprayed on the thermal printing chip integrated circuit board by the existing cleaning machine, a roller with a wiping cloth is used to wipe the liquid on its surface. During the wiping process, since the surface of the thermal printing chip integrated circuit board itself is not flat, it is likely to be scratched by the wiping cloth again and be contaminated with fiber debris, resulting in incomplete cleaning. Summary of the Invention

[0005] The main purpose of the present invention is to provide a resin coating device for thermal printing sheets. By providing a fixing mechanism, a cleaning mechanism and a cleaning mechanism, the device solves the problem that the surface of the integrated circuit board of the thermal printing sheet itself is uneven and is likely to be scratched by the wiping cloth again, thereby being attached with fiber debris and resulting in incomplete cleaning.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A resin coating device for thermal printing sheets includes a conveyor belt, a bracket fixedly connected to the outer side wall of the conveyor belt, and a coating device (not shown) fixedly connected to the bottom of the bracket. It also includes a fixing mechanism fixedly connected to the outer surface of the conveyor belt, and a cleaning mechanism and a cleaning mechanism fixedly connected to the bottom of the bracket. The fixing mechanism includes a placement platform movably arranged on the top of the conveyor belt, and a suction cup fixedly connected to the bottom wall of the placement platform for fixing the thermal printing sheet; The cleaning mechanism includes a first electric push rod fixedly connected to the bottom of the bracket, a transmission plate fixedly connected to the output end of the first electric push rod, and a cleaning sponge fixedly connected to the bottom of the transmission plate for absorbing a quantitative cleaning liquid; The cleaning mechanism includes a connecting frame movably arranged at the bottom of the bracket, an air pump fixedly connected to the outer side wall of the connecting frame, and an exhaust pipe fixedly connected to the air outlet of the air pump.

[0007] Preferably, the fixing mechanism further comprises a mounting seat fixedly connected to the outer surface of the conveyor belt, and a horizontal push rod fixedly connected to the outer side wall of the mounting seat; The outer side wall of the placement platform is fixedly connected to the output end of the horizontal push rod.

[0008] Preferably, the cleaning mechanism further includes a through hole opened at the top of the transmission plate, a connecting strip fixedly connected to the inner side wall of the through hole, and a guide rod fixedly connected to the top of the connecting strip, wherein the top end of the guide rod is higher than the top end of the transmission plate.

[0009] Preferably, the cleaning mechanism further includes a liquid storage tank fixedly connected to the inner top wall of the bracket, a discharge pipe fixedly connected to the bottom of the liquid storage tank, a connecting spring fixedly connected to the inner top wall of the discharge pipe, and a sealing ball slidably arranged inside the discharge pipe.

[0010] Preferably, the cleaning mechanism also includes a discharge groove opened on the outer wall of the sealing ball, and a sealing block fixedly connected to the inner wall of the discharge pipe. The overall structure composed of the sealing block and the discharge groove is divided into two groups and is symmetrically arranged about the central axis of the discharge pipe.

[0011] Preferably, the cleaning mechanism further comprises a second electric push rod fixedly connected to the bottom of the bracket, a movable plate fixedly connected to the output end of the second electric push rod, and an electrostatic adsorption plate fixedly connected to the outer side wall of the movable plate; The connecting frame is fixedly connected to the outer side wall of the movable plate.

[0012] Preferably, the cleaning mechanism further comprises a third electric push rod fixedly connected to the bottom of the connecting frame, a mounting plate fixedly connected to the output end of the third electric push rod, and a hot air pipe and a cold air pipe embedded in the mounting plate.

[0013] Preferably, the cleaning mechanism further comprises an electric heating wire fixedly connected to the inside of the hot air pipe, and the number of the electric heating wires is equal to that of the hot air pipe, and they correspond one to one.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a thermal print sheet is inserted into the interior of the placement table, and the thermal print sheet is tightly fitted with the top of the suction cup. The suction cup fixes the thermal print sheet, and the surface to be cleaned is set upward. Then, a first electric push rod is activated to drive the transmission plate and the cleaning sponge downward until the cleaning sponge and the thermal print sheet are in contact with each other. Then, a horizontal push rod is used to cyclically drive the thermal print sheet to move horizontally, thereby squeezing the cleaning sponge. In this way, the cleaning liquid stored in the cleaning sponge is squeezed onto the outer surface of the thermal print sheet, and the thermal print sheet is scrubbed to remove impurities remaining on the outer surface of the thermal print sheet.

[0015] 2. In the present invention, by starting the first electric push rod, the transmission plate is driven to move up. At this time, the guide rod will be inserted into the inside of the discharge pipe and push the sealing ball to move upward until the sealing block is disengaged from the discharge groove. At this time, the connecting spring is in a compressed state, and the cleaning fluid inside the liquid storage tank will be transported from the discharge groove to the outer surface of the guide rod, and finally to the inside of the cleaning sponge. By controlling the time when the guide rod is inserted into the inside of the discharge pipe, the discharge amount of the cleaning fluid can be controlled, thereby avoiding insufficient or waste of cleaning fluid during the cleaning process. When the guide rod is disengaged from the discharge pipe, its sealing ball will be reset under the action of the connecting spring, thereby sealing the discharge pipe and preventing leakage of the cleaning fluid.

[0016] 3. In the present invention, by activating the second electric push rod, the movable plate and the connecting frame are driven downward until the electrostatic adsorption plate is directly opposite the exhaust port. Then, the mounting plate is driven by the third electric push rod until the opening of the hot air duct is directly opposite the exhaust port. Then, the electric heating wire and the air pump are activated to heat the air delivered to the hot air duct by the air pump and deliver the hot air to the outer surface of the thermal printing sheet to dry the thermal printing sheet. In this way, fiber debris on the thermal printing sheet caused by the cleaning sponge during the scrubbing process is dried and blown off the thermal printing sheet. At this time, the electrostatic adsorption plate is in a working state, thereby adsorbing and collecting solid impurities. When the dust removal is completed, the third electric push rod is activated to drive the mounting plate downward until the opening of the cold air duct is directly opposite the exhaust port. At this time, the air pump drives air to blow the thermal printing sheet to cool the thermal printing sheet to prevent the thermal printing sheet from being too high in temperature when the resin is coated, thereby affecting the viscosity of the resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a left side schematic diagram of the internal structure of the bracket of the present invention; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle; Figure 4 It is a right side schematic diagram of the internal structure of the bracket of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure B in the middle; Figure 6 This is a schematic diagram of the internal structure of the liquid storage tank of the present invention; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the C structure in the middle.

[0018] In the figure: 1. Conveyor belt; 2. Bracket; 301. Mounting seat; 302. Horizontal push rod; 303. Placing table; 304. Suction cup; 401. First electric push rod; 402. Transmission plate; 403. Cleaning sponge; 404. Connecting strip; 405. Guide rod; 406. Liquid storage tank; 407. Discharge pipe; 408. Connecting spring; 409. Sealing ball; 4010. Sealing block; 501. Second electric push rod; 502. Movable plate; 503. Electrostatic adsorption plate; 504. Connecting frame; 505. Air pump; 506. Exhaust pipe; 507. Third electric push rod; 508. Mounting plate; 509. Hot air pipe; 5010. Cold air pipe; 5011. Electric heating wire. DETAILED DESCRIPTION

[0019] Example 1 Please refer to Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 as well as Figure 7 As shown, the present invention is a resin coating device for thermal printing sheets, comprising a conveyor belt 1, a bracket 2 fixedly connected to the outer side wall of the conveyor belt 1, and a coating device (not shown) fixedly connected to the bottom of the bracket 2, further comprising a fixing mechanism fixedly connected to the outer surface of the conveyor belt 1, and a cleaning mechanism and a cleaning mechanism fixedly connected to the bottom of the bracket 2; The fixing mechanism includes a placement platform 303 movably mounted on the top of the conveyor belt 1, and a suction cup 304 fixedly connected to the inner bottom wall of the placement platform 303 for fixing the thermal print sheet. The width of the groove at the top of the placement platform 303 matches the width of the thermal print sheet, and the distance between the top of the suction cup 304 and the top of the placement platform 303 is less than the thickness of the thermal print sheet. The cleaning mechanism includes a first electric push rod 401 fixedly connected to the bottom of the bracket 2, a transmission plate 402 fixedly connected to the output end of the first electric push rod 401, and a cleaning sponge 403 fixedly connected to the bottom of the transmission plate 402 for absorbing a fixed amount of cleaning liquid; The cleaning mechanism includes a connecting frame 504 movably arranged at the bottom of the bracket 2, an air pump 505 fixedly connected to the outer wall of the connecting frame 504, and an exhaust pipe 506 fixedly connected to the air outlet of the air pump 505, wherein the exhaust pipe 506 is provided with multiple exhaust ports, and each exhaust port passes through the connecting frame 504.

[0020] The fixing mechanism also includes a mounting base 301 fixedly connected to the outer surface of the conveyor belt 1 and a horizontal push rod 302 fixedly connected to the outer side wall of the mounting base 301; The outer side wall of the placement platform 303 is fixedly connected to the output end of the horizontal push rod 302. The horizontal push rod 302 drives the placement platform 303 to perform horizontal reciprocating linear motion, thereby driving the thermal printing sheet to move.

[0021] The cleaning mechanism also includes a through hole opened at the top of the transmission plate 402, a connecting strip 404 fixedly connected to the inner wall of the through hole, and a guide rod 405 fixedly connected to the top of the connecting strip 404, the top of the guide rod 405 is higher than the top of the transmission plate 402, wherein the connecting strip 404 is in the shape of a cylinder to reduce the interference of the connecting strip 404 on the guide rod 405 when discharging liquid, wherein the cleaning sponge 403 is located directly below the through hole, and the size of the cleaning sponge 403 is larger than the size of the through hole.

[0022] The cleaning mechanism also includes a liquid storage tank 406 fixedly connected to the inner top wall of the bracket 2, a discharge pipe 407 fixedly connected to the bottom of the liquid storage tank 406, a connecting spring 408 fixedly connected to the inner top wall of the discharge pipe 407, and a sealing ball 409 slidably arranged inside the discharge pipe 407, wherein the diameter of the sealing ball 409 is larger than the bottom end opening size of the discharge pipe 407, wherein the sealing ball 409 seals the discharge pipe 407 under the action of its own gravity and the elastic force of the connecting spring 408 to prevent the cleaning liquid stored in the liquid storage tank 406 from leaking.

[0023] Preferably, the central axis of the discharge pipe 407 coincides with the central axis of the guide rod 405 , and the outer diameter of the guide rod 405 is smaller than the inner diameter of the discharge pipe 407 .

[0024] The cleaning mechanism also includes a discharge groove opened on the outer wall of the sealing ball 409, and a sealing block 4010 fixedly connected to the inner wall of the discharge pipe 407. The overall structure consisting of the sealing block 4010 and the discharge groove has two groups and is symmetrically arranged about the central axis of the discharge pipe 407. When the sealing ball 409 blocks the opening of the discharge pipe 407, the sealing block 4010 is inserted into the interior of the discharge groove.

[0025] The thermal printing sheet is inserted into the placement table 303, and the thermal printing sheet is tightly fitted with the top of the suction cup 304. The suction cup 304 fixes the thermal printing sheet, and the surface to be cleaned is set upward. Then, the first electric push rod 401 is activated, thereby driving the transmission plate 402 and the cleaning sponge 403 to move downward until the cleaning sponge 403 and the thermal printing sheet are in contact with each other. Then, the horizontal push rod 302 is used to cyclically drive the thermal printing sheet to move horizontally, thereby squeezing the cleaning sponge 403, thereby squeezing the cleaning liquid stored in the cleaning sponge 403 to the outer surface of the thermal printing sheet, and scrubbing the thermal printing sheet to remove impurities remaining on the outer surface of the thermal printing sheet. After scrubbing for the specified time, the first electric push rod 401 is started to reset the transmission plate 402. At this time, the guide rod 405 will be plugged into the inside of the discharge pipe 407 and push the sealing ball 409 upward until the sealing block 4010 is disengaged from the discharge groove. At this time, the connecting spring 408 is in a compressed state, and the cleaning liquid inside the liquid storage tank 406 will be transported by the discharge groove to the outer surface of the guide rod 405, and finally to the inside of the cleaning sponge 403. By controlling the time when the guide rod 405 is plugged into the inside of the discharge pipe 407, the discharge amount of the cleaning liquid can be controlled to avoid insufficient or waste of cleaning liquid during the cleaning process. When the guide rod 405 is disengaged from the discharge pipe 407, its sealing ball 409 will be reset under the action of the connecting spring 408, thereby sealing the discharge pipe 407 to prevent leakage of the cleaning liquid.

[0026] Example 2 Please refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 As shown, the present invention is a resin coating device for thermal printing sheets, comprising a conveyor belt 1, a bracket 2 fixedly connected to the outer side wall of the conveyor belt 1, and a coating device (not shown) fixedly connected to the bottom of the bracket 2, further comprising a fixing mechanism fixedly connected to the outer surface of the conveyor belt 1, and a cleaning mechanism and a cleaning mechanism fixedly connected to the bottom of the bracket 2; The fixing mechanism includes a placement platform 303 movably mounted on the top of the conveyor belt 1, and a suction cup 304 fixedly connected to the inner bottom wall of the placement platform 303 for fixing the thermal print sheet. The width of the groove at the top of the placement platform 303 matches the width of the thermal print sheet, and the distance between the top of the suction cup 304 and the top of the placement platform 303 is less than the thickness of the thermal print sheet. The cleaning mechanism includes a first electric push rod 401 fixedly connected to the bottom of the bracket 2, a transmission plate 402 fixedly connected to the output end of the first electric push rod 401, and a cleaning sponge 403 fixedly connected to the bottom of the transmission plate 402 for absorbing a fixed amount of cleaning liquid; The cleaning mechanism includes a connecting frame 504 movably arranged at the bottom of the bracket 2, an air pump 505 fixedly connected to the outer wall of the connecting frame 504, and an exhaust pipe 506 fixedly connected to the air outlet of the air pump 505, wherein the exhaust pipe 506 is provided with multiple exhaust ports, and each exhaust port passes through the connecting frame 504.

[0027] The cleaning mechanism also includes a second electric push rod 501 fixedly connected to the bottom of the bracket 2, a movable plate 502 fixedly connected to the output end of the second electric push rod 501, and an electrostatic adsorption plate 503 fixedly connected to the outer wall of the movable plate 502, wherein the electrostatic adsorption plate 503 and the movable plate 502 are detachable structures, which facilitates the disassembly and cleaning of the electrostatic adsorption plate 503; The connecting frame 504 is fixedly connected to the outer side wall of the movable plate 502 , wherein the electrostatic adsorption plate 503 faces the exhaust port.

[0028] The cleaning mechanism also includes a third electric push rod 507 fixedly connected to the bottom of the connecting frame 504, a mounting plate 508 fixedly connected to the output end of the third electric push rod 507, and a hot air pipe 509 and a cold air pipe 5010 embedded in the mounting plate 508, wherein the number of hot air pipes 509, cold air pipes 5010 and exhaust ports is equal and the positions correspond.

[0029] The cleaning mechanism also includes an electric heating wire 5011 fixedly connected to the inside of the hot air pipe 509. The number of electric heating wires 5011 is equal to that of the hot air pipe 509, and they correspond one to one. The hot air pipe 509 and the cold air pipe 5010 are both made of heat-insulating material to prevent the electric heating wire 5011 from interfering with the cold air pipe 5010 during heating.

[0030] Preferably, there are several fixing mechanisms distributed at equal intervals on the outer surface of the conveyor belt 1, so that the thermal printing sheet can be cleaned automatically.

[0031] When the cleaning is completed, the second electric push rod 501 is activated to drive the movable plate 502 and the connecting frame 504 to move downward until the electrostatic adsorption plate 503 is facing the exhaust port, and then the third electric push rod 507 drives the mounting plate 508 to move until the opening of the hot air pipe 509 is facing the exhaust port, and then the electric heating wire 5011 and the air pump 505 are activated to heat the air delivered to the hot air pipe 509 by the air pump 505, and then the hot air is delivered to the outer surface of the thermal printing sheet to dry the thermal printing sheet, thereby Fiber debris is collected on the thermal print sheet due to scratches caused by the cleaning sponge 403 during scrubbing, and is dried and blown off the thermal print sheet. At this time, the electrostatic adsorption plate 503 is in operation, thereby adsorbing and collecting solid impurities. After dust removal is completed, the third electric push rod 507 is activated, thereby driving the mounting plate 508 to move downward until the opening of the cold air duct 5010 is directly opposite the exhaust port. At this time, the air pump 505 will drive air to blow across the thermal print sheet to cool the thermal print sheet and prevent excessive temperature from affecting the viscosity of the resin.

[0032] After the thermal printing sheet is cleaned, the thermal printing sheet is conveyed to the coating device via the conveyor belt 1 to complete the resin coating work of the thermal printing sheet.

Claims

1. A resin coating device for thermal printing sheets, comprising a conveyor belt (1), a bracket (2) fixedly connected to the outer side wall of the conveyor belt (1), and a coating device fixedly connected to the bottom of the bracket (2), characterized in that: It also includes a fixing mechanism fixedly connected to the outer surface of the conveyor belt (1), and a cleaning mechanism and a clearing mechanism fixedly connected to the bottom of the bracket (2); The fixing mechanism comprises a placement platform (303) movably arranged on the top of the conveyor belt (1), and a suction cup (304) fixedly connected to the inner bottom wall of the placement platform (303) for fixing the thermal printing sheet; The cleaning mechanism comprises a first electric push rod (401) fixedly connected to the bottom of the bracket (2), a transmission plate (402) fixedly connected to the output end of the first electric push rod (401), and a cleaning sponge (403) fixedly connected to the bottom of the transmission plate (402) for absorbing a quantitative cleaning liquid; The cleaning mechanism comprises a connecting frame (504) movably arranged at the bottom of the bracket (2), an air pump (505) fixedly connected to the outer side wall of the connecting frame (504), and an exhaust pipe (506) fixedly connected to the air outlet of the air pump (505).

2. The resin coating device for thermal printing sheets according to claim 1, characterized in that: The fixing mechanism further comprises a mounting seat (301) fixedly connected to the outer surface of the conveyor belt (1), and a horizontal push rod (302) fixedly connected to the outer side wall of the mounting seat (301); The outer side wall of the placement platform (303) is fixedly connected to the output end of the horizontal push rod (302).

3. The resin coating device for thermal printing sheets according to claim 1, characterized in that: The cleaning mechanism further comprises a through hole formed at the top of the transmission plate (402), a connecting strip (404) fixedly connected to the inner wall of the through hole, and a guide rod (405) fixedly connected to the top of the connecting strip (404), wherein the top end of the guide rod (405) is higher than the top end of the transmission plate (402).

4. The resin coating device for thermal printing sheets according to claim 3, characterized in that: The cleaning mechanism further comprises a liquid storage tank (406) fixedly connected to the inner top wall of the bracket (2), a discharge pipe (407) fixedly connected to the bottom of the liquid storage tank (406), a connecting spring (408) fixedly connected to the inner top wall of the discharge pipe (407), and a sealing ball (409) slidably arranged inside the discharge pipe (407).

5. The resin coating device for thermal printing sheets according to claim 4, characterized in that: The cleaning mechanism further comprises a discharge groove formed on the outer wall of the sealing ball (409), and a sealing block (4010) fixedly connected to the inner wall of the discharge pipe (407). The sealing block (4010) and the discharge groove form an overall structure of two groups, which are symmetrically arranged about the central axis of the discharge pipe (407).

6. The resin coating device for thermal printing sheets according to claim 1, characterized in that: The cleaning mechanism further comprises a second electric push rod (501) fixedly connected to the bottom of the bracket (2), a movable plate (502) fixedly connected to the output end of the second electric push rod (501), and an electrostatic adsorption plate (503) fixedly connected to the outer side wall of the movable plate (502); The connecting frame (504) is fixedly connected to the outer side wall of the movable plate (502).

7. The resin coating device for thermal printing sheets according to claim 6, characterized in that: The cleaning mechanism also includes a third electric push rod (507) fixedly connected to the bottom of the connecting frame (504), a mounting plate (508) fixedly connected to the output end of the third electric push rod (507), and a hot air pipe (509) and a cold air pipe (5010) embedded in the mounting plate (508).

8. The resin coating device for thermal printing sheets according to claim 7, characterized in that: The cleaning mechanism further comprises an electric heating wire (5011) fixedly connected to the inside of the hot air pipe (509), and the number of the electric heating wires (5011) is equal to that of the hot air pipe (509), and they correspond one to one.

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