Double-color single-sheet printer

Abstract

The utility model discloses a bicolor single sheet printer, which comprises a paper storage bin, a transmission channel used for conveying card paper sheets and a printing device which are sequentially arranged from back to front, the printing device comprises a printing head assembly, the printing head assembly comprises a heating plate arranged at the tail end of the transmission channel, and the heating plate is provided with a printing head; the heating plate is configured to provide at least two heating temperatures; and the printing roller is arranged above the printing head assembly. Through the heating plate capable of providing two temperatures, the heating plate can react with a covering film on a card paper sheet or printing ink on a printing head, so that two different colors are displayed, meanwhile, due to the fact that the paper storage bin, the conveying channel used for conveying the card paper sheet and the printing device are sequentially arranged from back to front, the structural arrangement is compact, and the printing efficiency is improved. The device is small in size, is suitable for miniaturization, and is higher in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of printing equipment, especially a double-color single sheet printer. BACKGROUND

[0002] In recent years, the market demand of table games, collectible cards and educational cards has grown rapidly, which has given rise to the demand for low-cost, high-precision double-color card printing equipment. Double-color cards need to achieve high-contrast printing of graphics and text within limited space. The current mainstream technical solutions on the market mainly fall into two categories: one is a double-color equipment based on the modification of traditional printing machines, and the other is a desktop printer using digital inkjet technology. However, both solutions have significant defects and cannot meet the market demand for miniaturization, low cost and high stability. Therefore, some people have proposed a method for double-color printing by responding to different printing temperatures to display different colors of ink or paper. However, this method still has the problems of complex structure and large equipment size.

[0003] Therefore, there is an urgent need to develop a double-color single sheet printer that is simple in structure, high in reliability and small in size. SUMMARY

[0004] The utility model discloses a double-color single sheet printer that is simple in structure, high in reliability and small in size.

[0005] Technical scheme: A double-color single sheet printer comprises:

[0006] A paper storage bin, a transmission channel for conveying card paper sheets and a printing device are arranged in sequence from back to front, and the printing device comprises:

[0007] A print head assembly comprises a heating plate arranged at the end of the transmission channel, a print head is arranged on the heating plate, and the heating plate is configured to provide at least two heating temperatures;

[0008] A printing roller is arranged above the print head assembly.

[0009] Further, two paper rollers are arranged at the bottom of the paper storage bin to convey the card paper sheets in the paper storage bin towards the transmission channel, and a pressing block is arranged above the paper roller close to the paper roller.

[0010] Further, the end of the transmission channel forms an inclined guide portion towards the print head assembly to guide the card paper sheets into the printing device, at least part of an inclined guide member is arranged above the guide portion to guide the card paper sheets into the printing device together with the guide portion, and a detection module is further arranged above the guide member to detect the passing of the card paper sheets.

[0011] Further, a transmission roller group arranged in up-down direction is arranged on the transmission channel, the transmission roller group is drivingly connected with a first power mechanism, the first power mechanism is also drivingly connected with the impression roller and makes the transmission speed of the impression roller equal to that of the transmission roller group.

[0012] Further, a second power mechanism is also included, the second power mechanism drivingly connects the two paper rollers in sequence and makes the two paper rollers rotate synchronously in the same direction.

[0013] Further, the paper storage bin includes two trapezoidal plates arranged vertically and oppositely, and a vertical plate arranged on the same side of the two trapezoidal plates, the vertical plate is internally provided with a cavity and is open at the bottom end, and the pressing block is arranged in the cavity.

[0014] Beneficial effects: the double-color single-sheet printer can provide a heating plate with two temperatures, thereby reacting with the film on the card sheet or the ink on the print head, thereby displaying two different colors, at the same time, the paper storage bin, the transmission channel for conveying the card sheet and the printing device arranged from back to front in sequence make the structure arrangement more compact, reduce the equipment volume and be suitable for miniaturization, and have the characteristics of high reliability. BRIEF DESCRIPTION OF DRAWINGS

[0015] FIG. 1 is a schematic view of the double-color single-sheet printer according to the present application; Figure 1 FIG. 2 is a sectional view of an embodiment of the double-color single-sheet printer according to the present application;

[0016] FIG. 3 is a schematic view of the double-color single-sheet printer according to the present application; Figure 2 FIG. 4 is an enlarged schematic view of I of the double-color single-sheet printer according to the present application; Figure 1 FIG. 5 is a schematic view of the double-color single-sheet printer according to the present application;

[0017] FIG. 6 is a schematic view of the double-color single-sheet printer according to the present application; Figure 3 FIG. 7 is a schematic view of the double-color single-sheet printer according to the present application; Figure 1 FIG. 8 is a perspective view of the double-color single-sheet printer according to the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] It should be noted that the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0020] Referring to Figures 1 to 3 An embodiment of the double-color single sheet printer of the present application is shown, comprising: a paper storage bin 1, a transmission channel 2 for conveying card paper and a printing device 3 arranged in order from back to front. The paper storage bin 1 is located at the last end of the equipment, containing two vertically opposite trapezoidal plates 14, the inner side of which forms a paper storage space. The trapezoidal plate 14 has a vertical plate 13 installed on the same side, the inside of the vertical plate 13 is provided with a through cavity, and the opening at the bottom of the cavity is provided with a pressing block 12. Two paper rubbing wheels 11 are arranged in parallel at the bottom of the paper storage bin 1, and synchronous driving is realized by the second power mechanism to realize the same direction rotation, wherein the pressing block 12 is arranged above the paper rubbing wheel 11 close to the transmission channel 2, and the end of the pressing block 12 is matched with the surface of the paper rubbing wheel 11 with a small gap.

[0021] The front end of the transmission channel 2 is connected with the printing device 3, and the transmission channel 2 is provided with a transmission roller set 21 opposite in upper and lower positions. The transmission roller set 21 is driven by the first power mechanism, and the surface thereof is coated with a high friction coefficient material to ensure smooth transmission of the card paper. The end of the transmission channel 2 forms an inclined guide part 23, and the guide part 23 and an inclined guide member 24 at the entrance of the printing device 3 jointly constitute a paper guide channel. The surface of the guide member 24 is provided with a detection module 22, which includes an infrared emitter and receiver, forming an optical detection area across the paper guide channel.

[0022] The printing device 3 includes an impression roller 31 and a print head assembly 32. The impression roller 31 is installed above the end of the transmission channel 2, and the rotation axis thereof is parallel to the transmission roller set 21. The first power mechanism drives the transmission roller set 21 and the impression roller 31 through a gear transmission system at the same time, ensuring that the linear velocities of the two are strictly synchronized. The print head assembly 32 is arranged directly below the impression roller 31, including a heating plate and a print head installed on the surface of the heating plate. The heating plate can be set and maintained at two different working temperatures respectively through the connection of a temperature control device.

[0023] The device workflow is as follows: the card paper sheet in the paper storage bin 1 is separated one by one under the action of the paper roller 11 rotation, the paper roller 11 close to the transmission channel 2 cooperates with the pressing block 12 to generate directional friction force, ensuring single paper feeding. After the card paper sheet enters the transmission channel 2, it is clamped and conveyed to the guide part 23 by the transmission roller group 21. When the front end of the paper sheet reaches the guide member 24, the light path of the detection module 22 is blocked and a signal is triggered, and the control unit starts the printing program.

[0024] The paper sheet slides into the printing area along the guide channel formed by the inclined guide part 23 and the guide member 24. At this time, the impression roller 31 rotates under the drive of the first power mechanism, and forms a printing gap with the print head assembly 32. The heating plate switches the working temperature according to the preset program: when the first color needs to be displayed, the heating plate maintains a lower temperature to make the print head ink react with the card cover film; when the second color needs to be displayed, the heating plate raises the temperature to cause the cover film structure to change, thereby showing different color shades.

[0025] The trapezoidal plate 14 spacing of the paper storage bin 1 is adjustable, and the width is adapted through the slide rail mechanism. The pressing block 12 assembly in the cavity of the vertical plate 13 adopts counterweight balance design, and the pressing force is changed by adjusting the position of the counterweight block. The second power mechanism adopts a double-output shaft reduction motor, which drives two paper rollers 11 to rotate at the same speed through synchronous pulleys, avoiding the fault of multiple paper feeding.

[0026] This embodiment integrates the storage, transmission and printing function units in a compact space through modular layout, and the vertical design of the paper storage bin 1 reduces the equipment floor space. The double-power mechanism independently controls the paper feeding and transmission actions, and cooperates with the precise detection system to realize reliable operation.

[0027] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A two-color single-sheet printer, characterized in that, include: The paper storage compartment, the conveyor channel for transporting card sheets, and the printing device are arranged sequentially from back to front. The printing device includes: A printhead assembly includes a heating plate disposed at the end of the transmission channel, the heating plate having a printhead disposed thereon, the heating plate being configured to provide at least two heating temperatures; The printing roller is positioned above the printhead assembly.

2. The two-color single-sheet printer according to claim 1, characterized in that: The bottom of the paper storage compartment is equipped with two paper-feeding rollers to transport the card paper pieces in the paper storage compartment toward the transmission channel. The paper-feeding rollers located near the transmission channel are also equipped with pressure blocks.

3. The two-color single-sheet printer according to claim 1, characterized in that: The end of the transmission channel is formed with an inclined guide portion towards the printhead assembly to guide the card paper into the printing device. Above the guide portion is a guide member that is at least partially inclined and works together with the guide portion to guide the card paper into the printing device. The guide member is also provided with a detection module for detecting the passage of the card paper.

4. The two-color single-sheet printer according to claim 3, characterized in that: The transmission channel is also provided with a transmission roller group arranged vertically. The transmission roller group is driven and connected to a first power mechanism. The first power mechanism is also driven and connected to the printing roller, so that the transmission speed of the printing roller and the transmission roller group are equal.

5. The two-color single-sheet printer according to claim 2, characterized in that: It also includes a second power mechanism, which sequentially drives the two paper feed rollers and makes the two paper feed rollers rotate synchronously in the same direction.

6. The two-color single-sheet printer according to claim 2, characterized in that: The paper storage compartment includes two vertical trapezoidal plates arranged opposite each other, and a vertical plate arranged on the same side of the two trapezoidal plates. The vertical plate has a cavity and an opening at the bottom, and the pressure block is arranged in the cavity.

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