Structure for realizing double-sided transparent effect of thermal printer

Abstract

The utility model belongs to the field of thermal printers, and relates to a structure for realizing a double-sided transparent effect of a thermal printer, which comprises a printing head and a rubber roller, the rubber roller is hollow, two ends of the rubber roller are connected with rotary joints, one of the rotary joints is connected with a water tank for containing water through a pipeline connection mode, and the other rotary joint is connected with a water pump. One rotary joint is connected with a rotary shaft, the other rotary joint is connected with a circulating water pump in a pipeline connection manner, the circulating water pump is connected with a water tank in a pipeline connection manner, a heater for heating water is arranged in the water tank, reticulate patterns are carved on the surface of the rubber roller, and the reticulate patterns comprise a plurality of annular longitudinal vent grooves. According to the utility model, the reticulate patterns are carved on the rubber roller, so that air in pores of the banner cloth can be dissipated along the longitudinal vent grooves, pigments on a printing surface of the banner cloth can enter the back surface of the printing surface through the pores, a double-sided transparent effect is realized, and a printed banner is more attractive.

Description

Technical Field

[0001] The utility model belongs to the field of thermal printers and relates to a structure for realizing a double-sided transparent effect of a thermal printer. Background Art

[0002] In the field of thermal printers, double-sided coated banner cloth and double-sided printers for printing double-sided banner cloth have been developed. These two new technologies can print banners with double-sided images and texts, and make the images and texts on the front and back of the banners appear the same, greatly improving the viewing quality of the banners. However, some users have not introduced the latest double-sided printers for various reasons. When the single-sided printers they use print single-sided coated banner cloth, the images and texts can be clearly observed on the printed side of the printed banner. Since the banner cloth itself has pores that can transmit light and pigments, the images and texts can also be observed on the back of the printed side. However, compared with the above-mentioned double-sided printed banners, the images and texts on the back of the printed side are light in color and blurred, so the resulting banners are not beautiful. Utility Model Content

[0003] The utility model aims to solve the problem that the single-sided page printed by the single-sided printer is not beautiful, and provides a structure for realizing the double-sided transparent effect of the thermal printer.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is a structure for realizing the double-sided transparent effect of a thermal printer, including a print head and a rubber roller, the rubber roller is hollow, and rotary joints are connected to both ends of the rubber roller, one of the rotary joints is connected to a water tank for holding water through a pipeline connection, and the other rotary joint is connected to a circulating water pump through a pipeline connection, and the circulating water pump is connected to the water tank through a pipeline connection, and a heater for heating water is arranged in the water tank, characterized in that a mesh pattern is engraved on the surface of the rubber roller, and the mesh pattern includes a plurality of annular longitudinal ventilation grooves.

[0005] Preferably, the rubber roller outer shell has a breathable and heat-insulating layer.

[0006] Preferably, the breathable heat-insulating layer is a mesh cloth wrapped on a rubber roller, and the mesh cloth is made of cotton and linen.

[0007] Preferably, the breathable heat-insulating layer is composed of cotton thread tightly wound on a rubber roller.

[0008] Preferably, the breathable heat-insulating layer is composed of cotton thread tightly wound on a rubber roller.

[0009] Preferably, the mesh pattern is a pattern including a plurality of quadrilateral grids in a side unfolded view of the rubber roller.

[0010] Preferably, the depth of the longitudinal ventilation groove is 0.005 mm to 0.01 mm.

[0011] Preferably, the width of the longitudinal ventilation groove is 0.005 mm to 0.01 mm.

[0012] Preferably, the mesh density of the reticulation is 40 to 100 meshes.

[0013] Preferably, the temperature of the water in the water tank is 60°C to 80°C.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] The utility model carves mesh patterns on the rubber roller so that the air in the pores of the banner cloth can be dissipated along the longitudinal ventilation grooves, so that the pigment on the printed surface of the banner cloth can enter the back of the printed surface through the pores, achieving a double-sided transparent effect and making the printed banner more beautiful.

[0016] The utility model further arranges a breathable heat-insulating layer on the rubber roller, the breathable heat-insulating layer has the effects of breathability, heat preservation and anti-static, and uses mesh cloth and cotton thread as main materials, so the implementation cost is low and the modification is easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 It is a schematic diagram of the structure for heating the rubber roller in a thermal printer;

[0019] Figure 2 Schematic diagram of the microstructure of the banner cloth;

[0020] Figure 3 The side view of the rubber roller includes a plurality of square grids;

[0021] Figure 4 The side unfolded view of the rubber roller includes a plurality of irregular quadrilateral grids;

[0022] Figure 5 It is a schematic diagram of the structure of a rubber roller wrapped with a mesh cloth;

[0023] Figure 6 It is a schematic diagram of the structure of a rubber roller wrapped with cotton thread.

[0024] In the above figures, 1. print head; 2. rubber roller; 3. banner cloth; 4. rotary joint; 5. water tank; 6. circulating water pump; 7. heater; 8. pores; 9. longitudinal ventilation grooves; 10. mesh cloth; 11. cotton thread. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a structure for achieving a double-sided transparent effect of a thermal printer is preferably implemented on a thermal printer capable of heating a rubber roller 2 to reduce the impact of a cold environment on the printing process, thereby obtaining a better printing effect. The thermal printer capable of heating the rubber roller 2 comprises a print head 1 and a rubber roller 2, the rubber roller 2 is hollow, and the two ends of the rubber roller 2 are connected with a rotary joint 4, one of the rotary joints 4 is connected to a water tank 5 for holding water by a pipeline connection, and the other rotary joint 4 is connected to a circulating water pump 6 by a pipeline connection, and the circulating water pump 6 is connected to the water tank 5 by a pipeline connection. A heater 7 for heating water is arranged in the water tank 5, and the water in the water tank 5 is heated and enters the rubber roller 2, thereby achieving heating of the rubber roller 2. In order to make the back image and text of the printed surface more clearly observed by people, the utility model is engraved with a mesh pattern on the surface of the rubber roller 2, and the mesh pattern includes a plurality of annular longitudinal ventilation grooves 9.

[0028] In the utility model, the mesh pattern engraved on the surface of the rubber roller 2 is not used to increase the friction between the banner and the banner, but is intended to allow the pigment to pass through the pores 8 of the banner cloth 3 smoothly. The principle is as follows: during the printing process, the print head 1 presses the banner cloth 3 onto the rubber roller 2. From a microscopic perspective, the print head 1 and the banner cloth 3, as well as the rubber roller 2 and the banner cloth 3 are in surface contact. Therefore, in the portion of the banner cloth 3 at the printing point, the upper and lower openings of the pores 8 of the banner cloth 3 are blocked. Since the print head 1 generates heat during the printing process, the air in the pores 8 expands due to the heat, which prevents the pigment on the printed surface of the banner cloth 3 from passing through the pores 8. Therefore, the back of the printed surface of the banner cloth 3 is lightly colored and the image and text are not clear. After the reticulation is added to the rubber roller 2, the air in the pores 8 can enter the reticulation, and the reticulation includes an annular longitudinal ventilation groove 9, so that the air entering the reticulation can be lost along the circumference of the rubber roller 2, and the air will not be blocked in the reticulation, so the pigment can pass through the pores 8 to the back of the printing surface, achieving a "double-sided transparent" effect. This method can be achieved by simply replacing the rubber roller 2 with the reticulation engraved, and has the advantage of simple operation.

[0029] Furthermore, the rubber roller 2 is covered with a breathable heat-insulating layer, so that the air in the pores 8 of the banner cloth 3 can escape, and at the same time, it has an additional heat-insulating effect on the rubber roller 2 and reduces heat loss.

[0030] Furthermore, the breathable heat-insulating layer is a mesh cloth 10 wrapped on the rubber roller 2, and the mesh cloth 10 is made of cotton and linen.

[0031] Furthermore, the breathable heat-insulating layer is composed of cotton thread 11 tightly wound on the rubber roller 2.

[0032] In addition, the mesh cloth 10 and the cotton thread 11 made of cotton and linen materials can conduct electricity, so after the breathable heat-insulating layer made of these two solutions is put on the rubber roller 2, this new structure can still play the same anti-static function as the rubber roller 2.

[0033] Furthermore, the mesh pattern in the side unfolded view of the rubber roller 2 is a pattern including a plurality of quadrilateral grids.

[0034] Furthermore, the depth of the longitudinal ventilation groove 9 is 0.005 mm to 0.01 mm.

[0035] Furthermore, the width of the longitudinal ventilation groove 9 is 0.005 mm to 0.01 mm.

[0036] Furthermore, the mesh density of the reticulation is 40-100 meshes.

[0037] Furthermore, the temperature of the water in the water tank 5 is 60°C to 80°C.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A structure for achieving a double-sided transparent effect of a thermal printer, comprising a print head and a rubber roller, wherein the rubber roller is hollow and has rotary joints at both ends thereof, wherein one of the rotary joints is connected to a water tank for holding water via a pipeline, and the other rotary joint is connected to a circulating water pump via a pipeline, wherein the circulating water pump is connected to the water tank via a pipeline, and wherein a heater for heating water is arranged in the water tank, wherein: The surface of the rubber roller is engraved with a mesh pattern, and the mesh pattern includes a plurality of annular longitudinal ventilation grooves.

2. The structure for achieving double-sided transparent effect of a thermal printer according to claim 1, characterized in that: The rubber roller outer shell is provided with a breathable heat-insulating layer.

3. The structure for achieving double-sided transparent effect of a thermal printer according to claim 2, characterized in that: The breathable heat-insulating layer is a mesh cloth wrapped on a rubber roller, and the mesh cloth is made of cotton and linen.

4. The structure for achieving double-sided transparent effect of a thermal printer according to claim 2, characterized in that: The breathable heat-insulating layer is composed of cotton threads tightly wound on a rubber roller.

5. The structure for achieving double-sided transparent effect of a thermal printer according to claim 1, characterized in that: The mesh pattern is a pattern including a plurality of quadrilateral grids in the side unfolded view of the rubber roller.

6. The structure for achieving double-sided transparent effect of a thermal printer according to claim 1, characterized in that: The depth of the longitudinal ventilation groove is 0.005mm to 0.01mm.

7. The structure for achieving double-sided transparent effect of a thermal printer according to claim 1, characterized in that: The width of the longitudinal ventilation groove is 0.005mm to 0.01mm.

8. The structure for achieving double-sided transparent effect of a thermal printer according to claim 1, characterized in that: The mesh density of the reticulated pattern is 40-100 meshes.

9. The structure for achieving double-sided transparent effect of a thermal printer according to claim 1, characterized in that: The temperature of the water in the water tank is 60°C to 80°C.

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